.page-news {
  --news-gutter: clamp(1.25rem, 4vw, 3rem);
  --news-border: 1px solid rgba(192, 192, 192, 0.6);
  background: var(--paper);
  color: var(--ink);
}

/* ===== 首屏 ===== */
.page-news .news-hero {
  position: relative;
  overflow: hidden;
  background: var(--grad-green);
  color: var(--frost);
  padding: calc(var(--news-gutter) * 1.25) 0 calc(var(--news-gutter) * 2.5);
  -webkit-clip-path: polygon(0 0, 100% 0, 100% calc(100% - 2.25rem), 0 100%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 2.25rem), 0 100%);
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: -12%;
  width: 44%;
  height: 100%;
  background: var(--grad-red);
  transform: skewX(-16deg);
  opacity: 0.92;
  z-index: 0;
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 33%;
  width: 5px;
  height: 100%;
  background: var(--gold-dark);
  transform: skewX(-16deg);
  opacity: 0.55;
  z-index: 0;
}

.page-news .news-hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 1.25rem;
}

.page-news .news-hero .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  font: 400 0.75rem/1.5 var(--font-mono);
}

.page-news .news-hero .breadcrumb__list a {
  color: var(--silver-metal);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}

.page-news .news-hero .breadcrumb__list a:hover {
  color: var(--frost);
  border-color: var(--red-arena);
}

.page-news .news-hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font: 500 0.75rem/1.5 var(--font-mono);
  letter-spacing: 0.18em;
  color: var(--gold-dark);
  text-transform: uppercase;
}

.page-news .news-hero__kicker::before {
  content: "";
  width: 2.25rem;
  height: 2px;
  background: var(--red-arena);
}

.page-news .news-hero h1 {
  font-weight: 200;
  font-size: clamp(2.25rem, 7vw, 4.5rem);
  line-height: 1.05;
  letter-spacing: 0.02em;
  margin: 0.25rem 0 0;
}

.page-news .news-hero__lead {
  font-size: clamp(1rem, 2.4vw, 1.4rem);
  font-weight: 300;
  line-height: 1.55;
  max-width: 32em;
  margin: 0.75rem 0 0;
}

.page-news .news-hero__desc {
  line-height: 1.8;
  max-width: 38em;
  margin: 0.75rem 0 0;
  color: rgba(248, 252, 248, 0.82);
}

.page-news .news-hero__aside {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.5rem;
  background: rgba(11, 61, 46, 0.72);
  border: 1px solid rgba(192, 192, 192, 0.3);
  padding: 0.9rem 1.1rem;
  width: fit-content;
  transform: rotate(-1.2deg);
}

.page-news .news-hero__aside p {
  margin: 0;
  font: 400 0.75rem/1.4 var(--font-mono);
  color: var(--silver-metal);
  letter-spacing: 0.12em;
}

.page-news .news-hero__link {
  margin: 0;
}

.page-news .news-hero__link a {
  color: var(--frost);
  text-decoration: none;
  font: 400 0.875rem/1.6 var(--font-sans);
  border-bottom: 1px solid var(--silver-metal);
  padding-bottom: 0.15rem;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}

.page-news .news-hero__link a:hover {
  border-color: var(--red-arena);
  color: var(--red-arena);
}

@media (min-width: 768px) {
  .page-news .news-hero__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 1.5rem 2.5rem;
  }

  .page-news .news-hero__letter {
    grid-column: 1;
  }

  .page-news .news-hero__aside {
    grid-column: 2;
    grid-row: 1 / span 2;
    justify-self: end;
  }

  .page-news .news-hero__link {
    grid-column: 1;
  }
}

/* ===== 正文布局 ===== */
.page-news .news-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--news-gutter);
  padding-top: 2.75rem;
  padding-bottom: 4.5rem;
}

@media (min-width: 1024px) {
  .page-news .news-layout {
    grid-template-columns: 210px minmax(0, 1fr);
    align-items: start;
  }
}

/* ===== 索引 ===== */
.page-news .news-index {
  border-left: 2px solid var(--red-arena);
  padding-left: 1.25rem;
}

@media (min-width: 1024px) {
  .page-news .news-index {
    position: sticky;
    top: 2rem;
  }
}

.page-news .news-index__title {
  font: 500 0.75rem/1.5 var(--font-mono);
  letter-spacing: 0.2em;
  color: var(--gold-dark);
  text-transform: uppercase;
  margin: 0 0 0.75rem;
}

.page-news .news-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
}

@media (min-width: 1024px) {
  .page-news .news-index__list {
    flex-direction: column;
    gap: 0.75rem;
  }
}

.page-news .news-index__list a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font: 400 0.875rem/1.4 var(--font-sans);
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-news .news-index__list a::before {
  content: "";
  width: 0.45rem;
  height: 0.45rem;
  background: var(--silver-metal);
  transition: background 0.25s var(--ease);
}

.page-news .news-index__list a:hover {
  color: var(--red-arena);
  border-color: var(--red-arena);
}

.page-news .news-index__list a:hover::before {
  background: var(--red-arena);
}

.page-news .news-index__note {
  font: 400 0.75rem/1.6 var(--font-mono);
  color: #7a7568;
  margin: 1rem 0 0;
}

/* ===== 内容区 ===== */
.page-news .news-content {
  min-width: 0;
}

.page-news .news-section__head {
  margin-bottom: 1.5rem;
}

.page-news .news-section + .news-section {
  margin-top: 3.5rem;
  border-top: 1px solid var(--silver-metal);
  padding-top: 2.75rem;
}

/* ===== 筛选条 ===== */
.page-news .news-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--silver-metal);
}

.page-news .news-filter {
  position: relative;
  font: 400 0.75rem/1.5 var(--font-mono);
  color: var(--ink);
  text-decoration: none;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--silver-metal);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease), color 0.25s var(--ease);
}

.page-news .news-filter:hover,
.page-news .news-filter.is-active {
  border-color: var(--red-arena);
  background: var(--red-arena);
  color: var(--frost);
}

/* ===== 文章卡片 ===== */
.page-news .news-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .page-news .news-grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-news .news-card--featured {
    grid-column: 1 / -1;
  }
}

.page-news .news-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: rgba(245, 240, 230, 0.65);
  border: var(--news-border);
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-news .news-card:hover {
  border-color: var(--red-arena);
  box-shadow: 0 10px 30px rgba(30, 30, 30, 0.08);
  transform: translateY(-3px);
}

@media (min-width: 640px) {
  .page-news .news-card--featured {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
}

.page-news .news-card--featured::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 0;
  height: 0;
  border-top: 2.75rem solid var(--red-arena);
  border-left: 2.75rem solid transparent;
  z-index: 2;
}

.page-news .news-card__media {
  overflow: hidden;
}

.page-news .news-card__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s var(--ease);
}

@media (min-width: 640px) {
  .page-news .news-card__media {
    min-height: 190px;
  }
}

.page-news .news-card:hover .news-card__media img {
  transform: scale(1.03);
}

.page-news .news-card__body {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: 1.25rem;
  flex: 1;
}

.page-news .news-card__body h3 {
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.4;
  margin: 0;
}

.page-news .news-card__body p {
  font-size: 0.875rem;
  line-height: 1.7;
  color: #5b574e;
  margin: 0;
}

@media (min-width: 640px) {
  .page-news .news-card__media + .news-card__body {
    padding: 1.5rem;
  }
}

.page-news .news-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: auto;
}

.page-news .news-card__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
  font: 400 0.75rem/1.4 var(--font-mono);
  color: var(--gold-dark);
  padding-top: 0.75rem;
  margin-top: 0.25rem;
  border-top: 1px dotted rgba(192, 192, 192, 0.7);
}

.page-news .news-card__meta::before {
  content: "";
  width: 1.5rem;
  height: 1px;
  background: var(--red-arena);
}

/* ===== 专题系列 ===== */
.page-news .news-series {
  display: grid;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

@media (min-width: 768px) {
  .page-news .news-series {
    grid-template-columns: repeat(3, 1fr);
  }
}

.page-news .series-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  background: var(--paper);
  border: var(--news-border);
  padding: 1.5rem;
  min-height: 12rem;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-news .series-card:nth-child(2) {
  transform: rotate(1.1deg);
}

.page-news .series-card:nth-child(3) {
  transform: rotate(-0.7deg);
}

.page-news .series-card:hover {
  border-color: var(--red-arena);
  box-shadow: 0 10px 26px rgba(30, 30, 30, 0.08);
  transform: rotate(0deg) translateY(-3px);
}

.page-news .series-card__num {
  font: 400 0.875rem/1.2 var(--font-mono);
  color: var(--gold-dark);
  margin: 0;
  letter-spacing: 0.1em;
}

.page-news .series-card h3 {
  margin: 0.25rem 0 0;
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.4;
}

.page-news .series-card p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: #5b574e;
}

.page-news .series-card a {
  color: var(--red-arena);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  font-size: 0.875rem;
  margin-top: auto;
  padding-bottom: 0.1rem;
  transition: border-color 0.25s var(--ease);
}

.page-news .series-card a:hover {
  border-color: var(--red-arena);
}

/* ===== 内容原则 ===== */
.page-news .news-principles {
  display: grid;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

@media (min-width: 768px) {
  .page-news .news-principles {
    grid-template-columns: repeat(3, 1fr);
  }
}

.page-news .principle-card {
  background: rgba(245, 240, 230, 0.5);
  border-top: 3px solid var(--gold-dark);
  padding: 1.5rem;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}

.page-news .principle-card:hover {
  background: rgba(245, 240, 230, 0.9);
  border-color: var(--red-arena);
}

.page-news .principle-card h3 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.page-news .principle-card p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: #5b574e;
}

/* ===== 反馈条 ===== */
.page-news .news-feedback {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
  background: var(--grad-green);
  color: var(--frost);
  padding: 1.5rem;
  margin-top: 2rem;
  border-left: 4px solid var(--red-arena);
}

.page-news .news-feedback p {
  margin: 0;
  line-height: 1.7;
  max-width: 34em;
}

@media (min-width: 768px) {
  .page-news .news-feedback {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}