/* ==========================================================
   战报资讯 / page-news
   ========================================================== */

.page-news {
  --news-node: 10px;
  --news-rail-x: 9px;
  --news-list-pad: 34px;
  padding-bottom: clamp(48px, 8vw, 96px);
}

/* ---------- 首屏 ---------- */

.page-news .news-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4.4vw, 56px) 0 clamp(24px, 3.6vw, 44px);
}

.page-news .news-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(36, 56, 47, 0.85) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(36, 56, 47, 0.85) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
  -webkit-mask-image: radial-gradient(130% 95% at 82% 4%, #000 0%, transparent 68%);
  mask-image: radial-gradient(130% 95% at 82% 4%, #000 0%, transparent 68%);
}

.page-news .news-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--teal) 0%, var(--line) 46%, transparent 100%);
  opacity: 0.6;
}

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

.page-news .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  list-style: none;
  margin: 0 0 clamp(14px, 2vw, 22px);
  padding: 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mute);
}

.page-news .breadcrumb-list li {
  display: inline-flex;
  align-items: center;
}

.page-news .breadcrumb-list li + li::before {
  content: "/";
  padding: 0 9px;
  color: var(--line);
}

.page-news .breadcrumb-list a {
  color: var(--mute);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-news .breadcrumb-list a:hover {
  color: var(--teal);
}

.page-news .eyebrow {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--teal);
  margin: 0 0 10px;
}

.page-news .news-h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 4.8vw, 56px);
  line-height: 1.04;
  letter-spacing: -0.005em;
  color: var(--chalk);
  margin: 0;
  max-width: 22ch;
}

.page-news .news-lede {
  margin: clamp(14px, 2vw, 20px) 0 0;
  max-width: 38em;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.78;
  color: var(--chalk);
  opacity: 0.86;
}

.page-news .hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 22px;
  margin-top: clamp(18px, 2.4vw, 26px);
  padding-top: clamp(14px, 1.8vw, 18px);
  border-top: 1px solid var(--line);
  font-size: 13px;
  letter-spacing: 0.03em;
  color: var(--mute);
}

.page-news .hero-meta-item {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
}

.page-news .hero-meta-item .mono {
  font-size: 16px;
  color: var(--mist);
}

.page-news .hero-figure {
  margin: clamp(22px, 3.2vw, 36px) 0 0;
}

.page-news .hero-figure img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* ---------- 筛选带 ---------- */

.page-news .filter-wrap {
  position: sticky;
  top: var(--bar-h);
  z-index: 15;
  padding: 14px 0 16px;
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink) 74%, rgba(8, 19, 15, 0) 100%);
}

.page-news .filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: var(--ink-2);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.3);
}

.page-news .filter-caption {
  font-family: var(--font-num);
  font-size: 10px;
  letter-spacing: 0.24em;
  color: var(--mute);
  padding-right: 10px;
  border-right: 1px solid var(--line);
}

.page-news .filter-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  flex: 1 1 auto;
}

.page-news .filter-btn {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1;
  color: var(--mist);
  background: transparent;
  border: 1px solid var(--line);
  padding: 8px 14px;
  cursor: pointer;
  transition:
    color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    background-color var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}

.page-news .filter-btn:hover {
  color: var(--chalk);
  border-color: var(--teal);
}

.page-news .filter-btn:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

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

.page-news .filter-btn[aria-pressed="true"] {
  background: var(--teal);
  border-color: var(--teal);
  color: var(--ink);
}

.page-news .filter-count {
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--mute);
  margin-left: auto;
  white-space: nowrap;
}

.page-news .filter-count .mono {
  font-size: 14px;
  color: var(--mist);
}

/* ---------- 条目列表 ---------- */

.page-news .news-index {
  padding-top: clamp(6px, 1.4vw, 14px);
}

.page-news .index-head {
  padding: clamp(20px, 3vw, 34px) 0 clamp(14px, 2vw, 20px);
  border-bottom: 1px solid var(--line);
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-news .index-h2,
.page-news .section-h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 2.8vw, 32px);
  line-height: 1.16;
  color: var(--chalk);
  margin: 0;
  max-width: 26ch;
}

.page-news .index-note {
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mute);
  max-width: 42em;
}

.page-news .stream-list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 var(--news-list-pad);
  position: relative;
  display: grid;
  gap: clamp(14px, 1.8vw, 22px);
}

.page-news .stream-list::before {
  content: "";
  position: absolute;
  left: var(--news-rail-x);
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(
    180deg,
    var(--teal) 0%,
    var(--line) 10%,
    var(--line) 86%,
    transparent 100%
  );
}

.page-news .stream-item {
  position: relative;
}

.page-news .stream-item::before {
  content: "";
  position: absolute;
  left: calc(-1 * (var(--news-list-pad) - var(--news-rail-x)) - (var(--news-node) / 2));
  top: 30px;
  width: var(--news-node);
  height: var(--news-node);
  box-sizing: border-box;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--node-c, var(--teal));
  transition: background-color var(--dur) var(--ease);
}

.page-news .stream-item--report { --node-c: var(--teal); }
.page-news .stream-item--data { --node-c: var(--mist); }
.page-news .stream-item--squad { --node-c: var(--teal); }
.page-news .stream-item--version { --node-c: var(--flare); }
.page-news .stream-item--ux { --node-c: var(--mist); }
.page-news .stream-item--topic { --node-c: var(--flare-deep); }

.page-news .entry-card {
  position: relative;
  padding: clamp(14px, 1.9vw, 22px) clamp(15px, 2vw, 24px);
  background: var(--board);
  border: 1px solid var(--line);
  border-left: 4px solid var(--node-c, var(--line));
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.32);
  transition:
    transform var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

.page-news .entry-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.36);
}

.page-news .entry-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 9px;
}

.page-news .entry-tag {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  line-height: 1;
  padding: 4px 9px;
  color: var(--node-c, var(--teal));
  border: 1px solid var(--node-c, var(--teal));
}

.page-news .entry-time {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mute);
}

.page-news .entry-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2.1vw, 23px);
  line-height: 1.3;
  color: var(--chalk);
  margin: 0 0 9px;
}

.page-news .entry-desc {
  margin: 0;
  max-width: 46em;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--chalk);
  opacity: 0.82;
}

.page-news .entry-media {
  margin-top: 14px;
}

.page-news .entry-media img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* ---------- 本期观察（全宽数据带） ---------- */

.page-news .obs-section {
  margin-top: clamp(44px, 7vw, 84px);
}

.page-news .obs-band {
  position: relative;
  padding: clamp(34px, 5.2vw, 68px) 0;
  background: linear-gradient(160deg, var(--ink-2) 0%, var(--board) 58%, var(--ink-2) 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-news .obs-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.34;
  pointer-events: none;
}

.page-news .obs-band .container {
  position: relative;
  z-index: 1;
}

.page-news .obs-head {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-news .obs-h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.1;
  color: var(--chalk);
  margin: 0;
  max-width: 24ch;
}

.page-news .obs-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 40px);
  align-items: start;
}

.page-news .obs-media img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-news .obs-row {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr);
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line);
}

.page-news .obs-key {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--teal);
  padding-top: 3px;
}

.page-news .obs-val {
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--chalk);
}

.page-news .obs-formula {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  padding: 14px 16px;
  background: rgba(8, 19, 15, 0.72);
  border: 1px solid var(--line);
  border-left: 3px solid var(--flare);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--mist);
}

.page-news .obs-op {
  color: var(--flare);
  font-weight: 700;
}

.page-news .obs-note {
  margin: 16px 0 0;
  font-size: 13.5px;
  line-height: 1.76;
  color: var(--mute);
  max-width: 42em;
}

/* ---------- 排期说明 ---------- */

.page-news .schedule-section {
  padding: clamp(44px, 7vw, 84px) 0 0;
}

.page-news .schedule-head {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-news .schedule-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 38px);
  align-items: start;
}

.page-news .schedule-notes {
  display: grid;
  gap: clamp(14px, 1.8vw, 20px);
}

.page-news .schedule-note {
  position: relative;
  padding: clamp(15px, 2vw, 22px) clamp(16px, 2vw, 22px);
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-top: 3px solid var(--teal);
}

.page-news .note-index {
  display: block;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--teal);
  margin-bottom: 8px;
}

.page-news .note-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.24;
  color: var(--chalk);
  margin: 0 0 8px;
}

.page-news .note-body {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--chalk);
  opacity: 0.82;
}

.page-news .schedule-media img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-news .media-caption {
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.66;
  color: var(--mute);
}

/* ---------- 回看路径 ---------- */

.page-news .revisit-section {
  padding: clamp(44px, 7vw, 84px) 0 0;
}

.page-news .revisit-head {
  margin-bottom: clamp(20px, 3vw, 30px);
  padding-bottom: clamp(12px, 1.6vw, 18px);
  border-bottom: 1px solid var(--line);
}

.page-news .revisit-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 2vw, 22px);
  counter-reset: none;
}

.page-news .revisit-step {
  position: relative;
  padding: clamp(16px, 2.2vw, 24px);
  background: var(--board);
  border: 1px solid var(--line);
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.28);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-news .revisit-step:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.32);
}

.page-news .step-num {
  display: inline-block;
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  line-height: 1;
  color: var(--flare);
  margin-bottom: 10px;
}

.page-news .step-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.28;
  color: var(--chalk);
  margin: 0 0 8px;
}

.page-news .step-body {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--chalk);
  opacity: 0.82;
  max-width: 44em;
}

/* ---------- 链接与空态 ---------- */

.page-news .link-teal {
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 190, 0.42);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .link-teal:hover {
  color: var(--mist);
  border-bottom-color: var(--mist);
}

.page-news .empty-state {
  margin-top: 24px;
  padding: 28px 22px;
  border: 1px dashed var(--line);
  background: var(--ink-2);
  text-align: center;
}

.page-news .empty-title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--chalk);
}

.page-news .empty-note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mute);
}

/* ---------- 显现与筛选态 ---------- */

.page-news [data-reveal] {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease);
}

.page-news [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

.page-news:not(.js) .page-news [data-reveal] {
  opacity: 1;
  transform: none;
}

.page-news .stream-item.is-filtered {
  display: none;
}

.page-news .stream-item.is-shown::before {
  background: var(--node-c, var(--teal));
}

/* ---------- 响应式 ---------- */

@media (max-width: 640px) {
  .page-news {
    --news-rail-x: 5px;
    --news-list-pad: 22px;
    --news-node: 9px;
  }

  .page-news .stream-item::before {
    top: 24px;
  }

  .page-news .filter-caption {
    border-right: 0;
    padding-right: 0;
  }

  .page-news .filter-count {
    margin-left: 0;
  }

  .page-news .obs-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .page-news .obs-key {
    padding-top: 0;
  }
}

@media (min-width: 720px) {
  .page-news .revisit-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-news .obs-grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }

  .page-news .schedule-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

  .page-news .schedule-media {
    position: sticky;
    top: calc(var(--bar-h) + 76px);
  }
}

@media (min-width: 1200px) {
  .page-news .news-h1 {
    max-width: 20ch;
  }
}

/* ---------- 动效偏好 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-news [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .page-news .entry-card,
  .page-news .revisit-step,
  .page-news .filter-btn {
    transition: none;
  }

  .page-news .entry-card:hover,
  .page-news .revisit-step:hover {
    transform: none;
  }
}
</main>