/* ===== 品牌日志 / page-news ===== */

.page-news {
  padding-bottom: clamp(48px, 8vw, 96px);
}

/* ---------- 首屏 ---------- */
.page-news .news-hero {
  position: relative;
  overflow: hidden;
  padding-top: clamp(26px, 4.6vw, 52px);
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: -140px 0 auto 0;
  height: 520px;
  pointer-events: none;
  background:
    radial-gradient(120% 100% at 14% 0%, rgba(53, 224, 214, .15), transparent 60%),
    radial-gradient(90% 90% at 86% 4%, rgba(242, 160, 61, .12), transparent 58%);
}

.page-news .news-hero .shell {
  position: relative;
  z-index: 1;
}

.page-news .news-hero__grid {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  margin-top: clamp(18px, 3vw, 30px);
}

@media (min-width: 940px) {
  .page-news .news-hero__grid {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, 1fr);
    align-items: end;
  }
}

.page-news .news-hero h1 {
  margin: .18em 0 .52em;
  font-size: clamp(31px, 5.2vw, 58px);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--warm-white);
}

.page-news .news-hero .lede {
  max-width: 62ch;
}

/* 第 3 轮 / v6.2 / 1,240 个 等关键数字 */
.page-news .news-stamp {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  overflow: hidden;
}

@media (min-width: 560px) {
  .page-news .news-stamp {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-news .news-stamp li {
  background: var(--ink-2);
  padding: 12px 14px 13px;
}

.page-news .stamp-key {
  display: block;
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--gray);
}

.page-news .stamp-val {
  display: block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 16px;
  letter-spacing: .02em;
  color: var(--cyan);
}

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

.page-news .news-hero__figure img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* ---------- 分段切换 ---------- */
.page-news .news-tabs {
  margin-top: clamp(30px, 4.4vw, 54px);
}

.page-news .news-tabs .tablist {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  border-bottom: 1px solid var(--line-dark);
  scrollbar-width: none;
}

.page-news .news-tabs .tablist::-webkit-scrollbar {
  display: none;
}

.page-news .news-tabs .tab {
  position: relative;
  flex: 0 0 auto;
  padding: 12px 16px 13px;
  border: 0;
  border-radius: var(--radius) var(--radius) 0 0;
  background: transparent;
  color: var(--gray-soft);
  font-family: inherit;
  font-size: 14.5px;
  font-weight: 500;
  letter-spacing: .01em;
  white-space: nowrap;
  cursor: pointer;
  transition: color .2s var(--ease), background .2s var(--ease);
}

.page-news .news-tabs .tab:hover {
  color: var(--paper);
  background: rgba(244, 239, 230, .05);
}

.page-news .news-tabs .tab[aria-selected="true"] {
  color: var(--cyan);
}

.page-news .news-tabs .tab[aria-selected="true"]::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: -1px;
  height: 2px;
  background: var(--cyan);
}

.page-news .news-tabs .tab:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -3px;
}

.page-news .tabpanel {
  padding-top: clamp(22px, 3.4vw, 38px);
}

.page-news .tabpanel + .tabpanel {
  margin-top: clamp(34px, 6vw, 72px);
}

.page-news .tabpanel:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 8px;
  border-radius: var(--radius);
}

/* ---------- 通用小标题 ---------- */
.page-news .news-head {
  display: grid;
  gap: 10px;
  max-width: 68ch;
  margin-bottom: clamp(18px, 2.8vw, 30px);
}

.page-news .news-head h2 {
  margin: 0;
  font-size: clamp(23px, 3.1vw, 33px);
  line-height: 1.22;
  letter-spacing: -.012em;
  color: var(--warm-white);
}

.page-news .news-head p {
  margin: 0;
  font-size: clamp(14.5px, 1.5vw, 16px);
  line-height: 1.75;
  color: var(--gray-soft);
}

.page-news .news-head--tight {
  margin-bottom: 0;
}

/* ---------- 时间轨道 ---------- */
.page-news .news-track {
  display: grid;
  gap: clamp(14px, 2vw, 22px);
}

.page-news .news-item {
  position: relative;
  padding-left: 30px;
}

.page-news .news-item::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 9px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 2px solid var(--cyan);
  background: var(--ink);
  box-shadow: 0 0 0 3px rgba(53, 224, 214, .12);
}

.page-news .news-item::after {
  content: "";
  position: absolute;
  left: 9.5px;
  top: 26px;
  bottom: calc(-1 * clamp(14px, 2vw, 22px));
  width: 1px;
  background: var(--line-dark-strong);
}

.page-news .news-item:last-child::after {
  display: none;
}

.page-news .news-when {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .09em;
  color: var(--amber);
}

/* ---------- 玻璃卡片 ---------- */
.page-news .news-card {
  position: relative;
  padding: clamp(14px, 2vw, 20px);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(20, 27, 33, .86), rgba(11, 15, 18, .78));
  transition: transform .25s var(--ease), border-color .25s var(--ease), box-shadow .25s var(--ease);
}

.page-news .news-card:hover {
  transform: translateY(-2px);
  border-color: rgba(53, 224, 214, .4);
  box-shadow: var(--shadow-lift);
}

.page-news .news-card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
}

.page-news .news-card__title {
  margin: 0;
  font-size: clamp(16px, 1.9vw, 19px);
  font-weight: 500;
  line-height: 1.45;
  color: var(--warm-white);
}

.page-news .news-card__body {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--gray-soft);
}

/* ---------- 字段行 ---------- */
.page-news .news-fields {
  display: grid;
  gap: 7px;
  margin: 14px 0 0;
  padding: 12px 0 0;
  border-top: 1px solid var(--line-dark);
  font-size: 13px;
}

.page-news .news-fields > div {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr);
  gap: 10px;
}

.page-news .news-fields dt {
  color: var(--gray);
  letter-spacing: .04em;
}

.page-news .news-fields dd {
  margin: 0;
  font-family: var(--font-mono);
  color: var(--cyan);
  word-break: break-word;
}

/* ---------- 展开摘要 ---------- */
.page-news .news-more {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--line-dark);
}

.page-news .news-more summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-news .news-more summary::-webkit-details-marker {
  display: none;
}

.page-news .news-more summary::before {
  content: "+";
  display: inline-grid;
  place-items: center;
  width: 16px;
  height: 16px;
  border: 1px solid currentColor;
  border-radius: 3px;
  font-size: 12px;
  line-height: 1;
}

.page-news .news-more[open] summary::before {
  content: "–";
}

.page-news .news-more p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray-soft);
}

/* ---------- 版本模块 ---------- */
.page-news .ver-lead {
  display: grid;
  gap: clamp(18px, 3vw, 32px);
  margin-bottom: clamp(22px, 3.4vw, 36px);
}

@media (min-width: 900px) {
  .page-news .ver-lead {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    align-items: center;
  }
}

.page-news .ver-lead .media-frame {
  margin: 0;
}

.page-news .ver-lead img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-news .ver-badge {
  display: inline-block;
  padding: 3px 9px 4px;
  border-radius: 3px;
  background: var(--cyan);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .05em;
}

.page-news .ver-list {
  display: grid;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-news .ver-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(244, 239, 230, .82);
}

.page-news .ver-list li::before {
  content: "";
  position: absolute;
  left: 1px;
  top: .62em;
  width: 6px;
  height: 6px;
  background: var(--amber);
  transform: rotate(45deg);
}

/* ---------- 案例模块 ---------- */
.page-news .case-banner {
  margin: 0 0 clamp(18px, 2.8vw, 28px);
}

.page-news .case-banner img {
  display: block;
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
}

.page-news .news-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(18px, 2.6vw, 26px);
}

.page-news .news-case-list {
  display: grid;
  gap: clamp(14px, 2vw, 20px);
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 780px) {
  .page-news .news-case-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-news .news-case {
  display: flex;
  list-style: none;
}

.page-news .news-case .news-card {
  flex: 1 1 auto;
}

/* ---------- 培训模块 ---------- */
.page-news .train-lead {
  display: grid;
  gap: clamp(18px, 3vw, 32px);
  margin-bottom: clamp(22px, 3.4vw, 36px);
}

@media (min-width: 900px) {
  .page-news .train-lead {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: center;
  }
}

.page-news .train-lead .media-frame {
  margin: 0;
}

.page-news .train-lead img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-news .train-grid {
  display: grid;
  gap: clamp(14px, 2vw, 20px);
}

@media (min-width: 800px) {
  .page-news .train-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-news .train-card {
  position: relative;
  padding: clamp(16px, 2vw, 22px);
  border: 1px solid var(--line-dark);
  border-top-width: 3px;
  border-radius: var(--radius-lg);
  background: rgba(20, 27, 33, .7);
  transition: transform .25s var(--ease), border-color .25s var(--ease);
}

.page-news .train-card:hover {
  transform: translateY(-2px);
}

.page-news .train-card--1 { border-top-color: var(--cyan); }
.page-news .train-card--2 { border-top-color: var(--amber); }
.page-news .train-card--3 { border-top-color: var(--vermilion); }

.page-news .train-tier {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .1em;
  color: var(--gray-soft);
}

.page-news .train-card h3 {
  margin: 8px 0 0;
  font-size: 17px;
  font-weight: 500;
  line-height: 1.45;
  color: var(--warm-white);
}

.page-news .train-card .news-fields {
  margin-top: 14px;
}

/* ---------- 回到顶部 ---------- */
.page-news .news-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: clamp(22px, 3vw, 32px);
  padding-bottom: 3px;
  border-bottom: 1px solid var(--line-dark);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--gray-soft);
  text-decoration: none;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-news .news-back::before {
  content: "↑";
}

.page-news .news-back:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-news .news-card,
  .page-news .train-card,
  .page-news .news-back {
    transition: none;
  }

  .page-news .news-card:hover,
  .page-news .train-card:hover {
    transform: none;
  }
}