.page-news {
  --news-gap: clamp(16px, 3.2vw, 28px);
  --news-excerpt: rgba(201, 211, 224, 0.82);
  background: var(--hs-space);
  color: var(--hs-silver);
  font-family: var(--hs-font-body);
  padding-top: calc(var(--hs-header-h) + 20px);
  overflow-x: hidden;
}

.page-news img {
  max-width: 100%;
  height: auto;
}

/* ===== 首屏 ===== */
.news-hero {
  position: relative;
  padding: clamp(16px, 4vw, 40px) 0 clamp(32px, 6vw, 60px);
  border-bottom: 1px solid var(--hs-line);
  isolation: isolate;
}

.news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(var(--hs-line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--hs-line-soft) 1px, transparent 1px);
  background-size: 76px 76px;
  opacity: 0.28;
}

.news-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: radial-gradient(90% 70% at 6% 0%, rgba(0, 229, 255, 0.15), transparent 62%);
}

.news-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 40px);
  align-items: end;
}

.news-hero__title {
  margin: 14px 0 16px;
  font-size: clamp(46px, 15vw, 118px);
  line-height: 0.92;
  letter-spacing: 0.01em;
  color: var(--hs-white);
}

.news-hero__leadtext {
  margin: 0 0 22px;
  max-width: 46ch;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.8;
  color: var(--hs-silver);
}

.news-hero__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.news-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--hs-line);
  border: 1px solid var(--hs-line);
}

.news-stat {
  background: linear-gradient(180deg, var(--hs-panel), rgba(11, 23, 51, 0.72));
  padding: 16px 14px;
}

.news-stat__num {
  display: block;
  font-family: var(--hs-font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(22px, 5vw, 30px);
  line-height: 1.1;
  color: var(--hs-white);
}

.news-stat__num span {
  margin-left: 3px;
  font-size: 0.52em;
  letter-spacing: 0.04em;
  color: var(--hs-cyan);
}

.news-stat__label {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--hs-mist);
}

.news-hero__media {
  margin-top: clamp(26px, 5vw, 44px);
}

.news-hero__media img {
  display: block;
  width: 100%;
  border: 1px solid var(--hs-line);
}

/* ===== 通用小元素 ===== */
.news-meta {
  margin: 0;
  font-family: var(--hs-font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--hs-mist);
}

.news-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 18px 0 clamp(20px, 3vw, 30px);
}

.news-filters__count {
  margin-left: auto;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--hs-mist);
}

/* ===== 头条复盘 ===== */
.news-feature {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--news-gap);
  padding: clamp(16px, 3vw, 22px);
  border: 1px solid var(--hs-line);
  border-left: 2px solid var(--hs-cyan);
  background: var(--hs-panel);
}

.news-feature__media img {
  display: block;
  width: 100%;
  border: 1px solid var(--hs-line-soft);
}

.news-feature__title {
  margin: 10px 0 10px;
  font-family: var(--hs-font-display);
  font-size: clamp(20px, 2.8vw, 27px);
  line-height: 1.25;
  letter-spacing: 0.01em;
  color: var(--hs-white);
}

.news-feature__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--news-excerpt);
}

/* ===== 条目列表 ===== */
.news-list {
  list-style: none;
  margin: clamp(24px, 4vw, 34px) 0 0;
  padding: 0;
  border-top: 1px solid var(--hs-line);
}

.news-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 18px 10px;
  border-bottom: 1px solid var(--hs-line-soft);
  transition: background-color 0.25s var(--hs-ease);
}

.news-item:hover {
  background: rgba(11, 23, 51, 0.62);
}

.news-item__index {
  font-family: var(--hs-font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--hs-cyan);
}

.news-item__body {
  min-width: 0;
}

.news-item__title {
  margin: 0 0 7px;
  font-size: clamp(17px, 2.1vw, 20px);
  font-weight: 600;
  line-height: 1.4;
  color: var(--hs-white);
  transition: color 0.25s var(--hs-ease);
}

.news-item:hover .news-item__title {
  color: var(--hs-cyan);
}

.news-item__excerpt {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--news-excerpt);
}

/* ===== 轮次归档时间轴 ===== */
.news-archive {
  position: relative;
  padding-left: 24px;
}

.news-archive::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  bottom: 12px;
  width: 1px;
  background: linear-gradient(180deg, var(--hs-cyan), var(--hs-line) 55%, rgba(20, 38, 77, 0) 100%);
}

.news-arc {
  position: relative;
  border-bottom: 1px solid var(--hs-line-soft);
}

.news-arc[open] {
  background: linear-gradient(90deg, rgba(0, 229, 255, 0.05), transparent 62%);
}

.news-arc > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 17px 0;
  font-size: 15px;
  color: var(--hs-white);
}

.news-arc > summary::-webkit-details-marker {
  display: none;
}

.news-arc > summary::before {
  content: "";
  position: absolute;
  left: -24px;
  top: 22px;
  width: 9px;
  height: 9px;
  border: 1px solid var(--hs-cyan);
  background: var(--hs-space);
  transform: rotate(45deg);
  transition: background-color 0.25s var(--hs-ease);
}

.news-arc[open] > summary::before {
  background: var(--hs-cyan);
}

.news-arc > summary:hover .news-arc__label {
  color: var(--hs-cyan);
}

.news-arc__label {
  font-family: var(--hs-font-mono);
  letter-spacing: 0.06em;
  transition: color 0.25s var(--hs-ease);
}

.news-arc__count {
  margin-left: auto;
  font-family: var(--hs-font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--hs-mist);
}

.news-arc__list {
  list-style: none;
  margin: 0;
  padding: 0 0 18px;
}

.news-arc__list li {
  position: relative;
  padding: 6px 0 6px 16px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--news-excerpt);
}

.news-arc__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  width: 7px;
  height: 1px;
  background: var(--hs-orange);
}

/* ===== 专题系列 ===== */
.news-series {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--news-gap);
}

.news-series__media img {
  display: block;
  width: 100%;
  border: 1px solid var(--hs-line);
}

.news-series__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--hs-line);
  border: 1px solid var(--hs-line);
}

.news-series__card {
  padding: clamp(18px, 3vw, 22px);
  background: var(--hs-panel);
}

.news-series__card h3 {
  margin: 12px 0 8px;
  font-size: 17px;
  color: var(--hs-white);
}

.news-series__card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--news-excerpt);
}

.news-series__card a {
  color: var(--hs-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.4);
  transition: border-color 0.25s var(--hs-ease);
}

.news-series__card a:hover {
  border-color: var(--hs-cyan);
}

/* ===== 更新节奏 ===== */
.news-rhythm {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--news-gap);
}

.news-rhythm__steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--hs-line);
  border: 1px solid var(--hs-line);
}

.news-step {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: clamp(16px, 3vw, 20px);
  background: var(--hs-panel);
}

.news-step__value {
  font-size: clamp(17px, 2.4vw, 21px);
  line-height: 1.15;
  letter-spacing: 0.02em;
  color: var(--hs-orange);
}

.news-step__value span {
  display: block;
  margin-top: 2px;
  font-size: 12px;
  color: var(--hs-mist);
}

.news-step__body h3 {
  margin: 0 0 7px;
  font-size: 16px;
  color: var(--hs-white);
}

.news-step__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--news-excerpt);
}

.news-rhythm__media img {
  display: block;
  width: 100%;
  border: 1px solid var(--hs-line);
}

/* ===== 下一步 ===== */
.news-cta {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--news-gap);
  padding: clamp(22px, 4vw, 36px);
  border: 1px solid var(--hs-line);
  border-left: 2px solid var(--hs-orange);
  background: linear-gradient(120deg, rgba(255, 122, 26, 0.09), transparent 58%), var(--hs-panel);
}

.news-cta h2 {
  margin: 0 0 10px;
  font-family: var(--hs-font-display);
  font-size: clamp(20px, 2.8vw, 27px);
  line-height: 1.25;
  color: var(--hs-white);
}

.news-cta p {
  margin: 0;
  max-width: 60ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--news-excerpt);
}

.news-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: start;
}

/* ===== 断点 ===== */
@media (min-width: 760px) {
  .news-item {
    grid-template-columns: 56px minmax(0, 1fr) 190px;
    gap: 20px;
    align-items: start;
  }

  .news-item__meta {
    text-align: right;
  }
}

@media (min-width: 900px) {
  .news-hero__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .news-feature {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: center;
  }

  .news-series {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }

  .news-rhythm {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: center;
  }

  .news-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (max-width: 420px) {
  .news-step {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .news-step__value span {
    display: inline;
    margin-left: 3px;
  }

  .news-filters__count {
    margin-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .news-item,
  .page-news .news-item__title,
  .page-news .news-arc > summary::before,
  .page-news .news-arc__label {
    transition: none;
  }
}