/* ===== 档案与观察 / page-news ===== */

.page-news {
  --arc-ink-soft: #46506A;
  --arc-violet: #7A6BC4;
  --arc-slate: #5C6B8A;
  overflow-x: clip;
}

/* ---------- 栏目头部 ---------- */

.page-news .arc-hero {
  position: relative;
  padding: clamp(28px, 5vw, 56px) 0 clamp(48px, 8vw, 96px);
  color: var(--ky-paper);
  background:
    radial-gradient(900px 520px at 88% -8%, rgba(47, 191, 176, .18), transparent 62%),
    radial-gradient(720px 460px at 4% 100%, rgba(192, 138, 62, .16), transparent 60%),
    var(--ky-indigo);
}

.page-news .arc-hero__crumb {
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-news .arc-hero__crumb a {
  color: var(--ky-copper-light);
  text-decoration: none;
  border-bottom: 1px solid rgba(230, 196, 137, .35);
}

.page-news .arc-hero__crumb a:hover {
  border-bottom-color: var(--ky-copper-light);
}

.page-news .arc-hero__crumb span {
  color: rgba(246, 242, 233, .62);
}

.page-news .arc-hero__title {
  margin: 0 0 clamp(18px, 3vw, 28px);
  font-family: var(--ky-font-display);
  font-size: clamp(40px, 8vw, 100px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--ky-paper);
}

.page-news .arc-hero__lede {
  max-width: 52ch;
  margin: 0;
  font-size: clamp(16px, 1.15vw, 18px);
  line-height: 1.85;
  color: rgba(246, 242, 233, .8);
}

.page-news .arc-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: clamp(26px, 4vw, 42px) 0 0;
  padding: 0;
  list-style: none;
}

.page-news .arc-stat {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 18px;
  border: var(--ky-line);
  border-radius: var(--ky-radius-pill);
  background: rgba(22, 38, 77, .6);
}

.page-news .arc-stat__num {
  font-family: var(--ky-font-mono);
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--ky-copper-light);
}

.page-news .arc-stat__label {
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--ky-mist);
}

.page-news .arc-hero__figure {
  margin: clamp(32px, 5vw, 56px) 0 0;
}

.page-news .arc-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  border: var(--ky-line);
  border-radius: var(--ky-radius-lg);
  object-fit: cover;
}

/* ---------- 归档总览 ---------- */

.page-news .arc-overview__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  align-items: center;
}

.page-news .arc-overview__text .ky-h2 {
  margin: .35em 0 .7em;
}

.page-news .arc-overview__text p {
  margin: 0 0 1.1em;
  font-size: 16.5px;
  line-height: 1.9;
  color: var(--arc-ink-soft);
}

.page-news .arc-overview__figure {
  margin: 0;
}

.page-news .arc-overview__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--ky-radius-card);
}

.page-news .arc-overview__figure .ky-figure__cap {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--arc-slate);
}

/* ---------- 归档主区 ---------- */

.page-news .arc-archive {
  position: relative;
}

.page-news .arc-archive__head {
  max-width: 72ch;
}

.page-news .arc-archive__head .ky-lede {
  color: var(--arc-ink-soft);
}

/* 筛选控件（渐进增强：无脚本时全部条目照常显示） */

.page-news .arc-filter__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.page-news .arc-filter__pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(24px, 4vw, 38px) 0 clamp(20px, 3vw, 30px);
}

.page-news .arc-pill {
  display: inline-flex;
  align-items: center;
  padding: 9px 18px;
  border: 1px solid rgba(14, 27, 58, .16);
  border-radius: var(--ky-radius-pill);
  background: rgba(246, 242, 233, .82);
  color: var(--ky-indigo);
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  transition: background-color .25s var(--ky-ease), color .25s var(--ky-ease), border-color .25s var(--ky-ease);
}

.page-news .arc-pill:hover {
  border-color: var(--ky-copper);
  color: var(--ky-copper);
}

.page-news #arcFilterAll:checked ~ .arc-filter__pills label[for="arcFilterAll"],
.page-news #arcFilterRights:checked ~ .arc-filter__pills label[for="arcFilterRights"],
.page-news #arcFilterTpl:checked ~ .arc-filter__pills label[for="arcFilterTpl"],
.page-news #arcFilterTrain:checked ~ .arc-filter__pills label[for="arcFilterTrain"],
.page-news #arcFilterDelivery:checked ~ .arc-filter__pills label[for="arcFilterDelivery"],
.page-news #arcFilterPartner:checked ~ .arc-filter__pills label[for="arcFilterPartner"],
.page-news #arcFilterFile:checked ~ .arc-filter__pills label[for="arcFilterFile"] {
  background: var(--ky-indigo);
  border-color: var(--ky-indigo);
  color: var(--ky-paper);
}

.page-news .arc-filter__input:focus-visible ~ .arc-filter__pills {
  outline: 2px solid var(--ky-cyan);
  outline-offset: 6px;
  border-radius: var(--ky-radius-pill);
}

.page-news #arcFilterRights:checked ~ .arc-layout .arc-entry:not(.cat-rights),
.page-news #arcFilterTpl:checked ~ .arc-layout .arc-entry:not(.cat-tpl),
.page-news #arcFilterTrain:checked ~ .arc-layout .arc-entry:not(.cat-train),
.page-news #arcFilterDelivery:checked ~ .arc-layout .arc-entry:not(.cat-delivery),
.page-news #arcFilterPartner:checked ~ .arc-layout .arc-entry:not(.cat-partner),
.page-news #arcFilterFile:checked ~ .arc-layout .arc-entry:not(.cat-file) {
  display: none;
}

/* 双栏骨架：左年份刻度 + 右条目流 */

.page-news .arc-layout {
  display: grid;
  gap: clamp(22px, 4vw, 44px);
  align-items: start;
}

.page-news .arc-yearnav__title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--arc-slate);
}

.page-news .arc-yearnav__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-news .arc-yearnav__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 14px;
  border-radius: var(--ky-radius-pill);
  color: var(--ky-indigo-deep);
  font-family: var(--ky-font-mono);
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color .25s var(--ky-ease), color .25s var(--ky-ease);
}

.page-news .arc-yearnav__link:hover {
  background: rgba(192, 138, 62, .16);
  color: var(--ky-copper);
}

.page-news .arc-yearnav__hint {
  font-family: var(--ky-font-sans);
  font-size: 12px;
  color: var(--arc-slate);
}

/* 年份分组 */

.page-news .arc-year {
  margin-bottom: clamp(30px, 5vw, 54px);
  scroll-margin-top: 120px;
}

.page-news .arc-year:last-child {
  margin-bottom: 0;
}

.page-news .arc-year__head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 14px;
  padding-bottom: 12px;
  margin-bottom: 16px;
  border-bottom: var(--ky-line);
}

.page-news .arc-year__num {
  font-family: var(--ky-font-mono);
  font-size: clamp(24px, 3vw, 32px);
  letter-spacing: -0.02em;
  color: var(--ky-indigo);
}

.page-news .arc-year__note {
  font-size: 13px;
  color: var(--arc-slate);
}

.page-news .arc-quarters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.page-news .arc-quarter {
  padding: 5px 12px;
  border: 1px solid rgba(14, 27, 58, .12);
  border-radius: var(--ky-radius-pill);
  background: rgba(246, 242, 233, .92);
  color: var(--ky-indigo-deep);
  font-family: var(--ky-font-mono);
  font-size: 12px;
  white-space: nowrap;
}

.page-news .arc-quarter--current {
  border-color: var(--ky-orange);
  background: rgba(242, 112, 58, .12);
  color: var(--ky-ink);
}

/* 归档条目 */

.page-news .arc-entries {
  display: grid;
  gap: 10px;
}

.page-news .arc-entry {
  --arc-accent: var(--ky-copper);
  padding: 14px 18px;
  border-left: 3px solid var(--arc-accent);
  border-radius: 4px var(--ky-radius-card) var(--ky-radius-card) 4px;
  background: rgba(246, 242, 233, .8);
  transition: background-color .25s var(--ky-ease), transform .25s var(--ky-ease);
}

.page-news .arc-entry:hover {
  background: rgba(246, 242, 233, 1);
  transform: translateX(2px);
}

.page-news .arc-entry.cat-rights { --arc-accent: var(--ky-copper); }
.page-news .arc-entry.cat-tpl { --arc-accent: var(--ky-cyan); }
.page-news .arc-entry.cat-train { --arc-accent: var(--ky-orange); }
.page-news .arc-entry.cat-delivery { --arc-accent: var(--ky-indigo-deep); }
.page-news .arc-entry.cat-partner { --arc-accent: var(--arc-violet); }
.page-news .arc-entry.cat-file { --arc-accent: var(--arc-slate); }

.page-news .arc-entry__summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "meta chev"
    "title chev";
  gap: 6px 16px;
  align-items: center;
  cursor: pointer;
  list-style: none;
}

.page-news .arc-entry__summary::-webkit-details-marker {
  display: none;
}

.page-news .arc-entry__meta {
  grid-area: meta;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.page-news .arc-entry__title {
  grid-area: title;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ky-ink);
}

.page-news .arc-tag {
  display: inline-block;
  padding: 4px 10px;
  border: 1px solid rgba(192, 138, 62, .36);
  border-radius: var(--ky-radius-pill);
  background: rgba(192, 138, 62, .13);
  color: #8A5F23;
  font-size: 12px;
  line-height: 1;
  white-space: nowrap;
}

.page-news .arc-entry__time {
  font-family: var(--ky-font-mono);
  font-size: 12px;
  color: var(--arc-slate);
}

.page-news .arc-entry__chev {
  grid-area: chev;
  position: relative;
  width: 24px;
  height: 24px;
  border: 1px solid rgba(14, 27, 58, .22);
  border-radius: 50%;
  flex: none;
}

.page-news .arc-entry__chev::before,
.page-news .arc-entry__chev::after {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  background: var(--ky-indigo);
  transition: transform .3s var(--ky-ease);
}

.page-news .arc-entry__chev::before {
  width: 9px;
  height: 1.5px;
}

.page-news .arc-entry__chev::after {
  width: 1.5px;
  height: 9px;
}

.page-news .arc-entry[open] .arc-entry__chev::after {
  transform: scaleY(0);
}

.page-news .arc-entry__body {
  margin-top: 12px;
  padding-top: 12px;
  border-top: var(--ky-line-soft);
}

.page-news .arc-entry__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--arc-ink-soft);
}

.page-news .arc-entry__body ul {
  margin: 10px 0 0;
  padding-left: 18px;
}

.page-news .arc-entry__body li {
  margin-bottom: 5px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--arc-slate);
}

.page-news .arc-entry__body li::marker {
  color: var(--arc-accent);
}

/* ---------- 版本迭代脉络 ---------- */

.page-news .arc-versions {
  color: var(--ky-paper);
}

.page-news .arc-versions__figure {
  margin: clamp(28px, 4vw, 44px) 0 clamp(30px, 4vw, 48px);
}

.page-news .arc-versions__figure img {
  display: block;
  width: 100%;
  height: auto;
  border: var(--ky-line);
  border-radius: var(--ky-radius-lg);
}

.page-news .ky-figure__cap {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ky-mist);
}

.page-news .arc-phases {
  display: grid;
  gap: clamp(16px, 2.5vw, 24px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .arc-phase {
  position: relative;
  padding: 22px 24px 22px 32px;
  border: var(--ky-line);
  border-radius: var(--ky-radius-card);
  background: rgba(22, 38, 77, .72);
}

.page-news .arc-phase::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 28px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ky-cyan);
  box-shadow: 0 0 0 4px rgba(47, 191, 176, .16);
}

.page-news .arc-phase__range {
  margin: 0 0 8px;
  font-family: var(--ky-font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--ky-copper-light);
}

.page-news .arc-phase__title {
  margin: 0 0 8px;
  font-size: 19px;
  line-height: 1.5;
  color: var(--ky-paper);
}

.page-news .arc-phase__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(246, 242, 233, .74);
}

/* ---------- 行业观察 ---------- */

.page-news .arc-observe__grid {
  display: grid;
  gap: clamp(18px, 2.5vw, 26px);
  margin-top: clamp(26px, 4vw, 40px);
}

.page-news .arc-observe__figure {
  grid-column: 1 / -1;
  max-width: 620px;
  margin: 0 auto;
}

.page-news .arc-observe__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--ky-radius-card);
}

.page-news .arc-post {
  padding: clamp(20px, 3vw, 28px);
  border: var(--ky-line-soft);
  border-radius: var(--ky-radius-card);
  background: rgba(227, 232, 240, .58);
}

.page-news .arc-post__cat {
  display: inline-block;
  margin: 0 0 10px;
  padding: 4px 12px;
  border-radius: var(--ky-radius-pill);
  background: rgba(47, 191, 176, .16);
  color: #146A62;
  font-size: 12px;
  line-height: 1.4;
}

.page-news .arc-post__title {
  margin: 0 0 10px;
  font-size: 19px;
  line-height: 1.55;
  color: var(--ky-indigo);
}

.page-news .arc-post__desc {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--arc-ink-soft);
}

.page-news .arc-post__time {
  margin: 0;
  font-family: var(--ky-font-mono);
  font-size: 12px;
  color: var(--arc-slate);
}

/* ---------- 伙伴与区域动态 ---------- */

.page-news .arc-network .ky-lede a {
  color: var(--ky-copper);
  text-decoration: none;
  border-bottom: 1px solid rgba(192, 138, 62, .45);
}

.page-news .arc-network .ky-lede a:hover {
  border-bottom-color: var(--ky-copper);
}

.page-news .arc-network__list {
  display: grid;
  gap: 14px;
  margin: clamp(24px, 4vw, 36px) 0 0;
  padding: 0;
  list-style: none;
}

.page-news .arc-network__item {
  padding-top: 16px;
  border-top: var(--ky-line);
}

.page-news .arc-network__num {
  margin: 0 0 8px;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--ky-copper);
}

.page-news .arc-network__title {
  margin: 0 0 8px;
  font-size: 18px;
  line-height: 1.5;
  color: var(--ky-indigo);
}

.page-news .arc-network__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--arc-ink-soft);
}

/* ---------- 更新提醒 ---------- */

.page-news .arc-subscribe {
  color: var(--ky-paper);
}

.page-news .arc-subscribe__inner {
  max-width: 76ch;
}

.page-news .arc-subscribe__desc {
  margin: 0;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(246, 242, 233, .78);
}

.page-news .arc-subscribe__desc a {
  color: var(--ky-copper-light);
  text-decoration: none;
  border-bottom: 1px solid rgba(230, 196, 137, .45);
}

.page-news .arc-subscribe__desc a:hover {
  border-bottom-color: var(--ky-copper-light);
}

.page-news .arc-subscribe__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-news .arc-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 780px) {
  .page-news .arc-network__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-news .arc-observe__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-news .arc-overview__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
  }

  .page-news .arc-layout {
    grid-template-columns: 176px minmax(0, 1fr);
  }

  .page-news .arc-yearnav {
    position: sticky;
    top: 112px;
    align-self: start;
    padding-top: 6px;
  }

  .page-news .arc-yearnav__list {
    flex-direction: column;
    gap: 2px;
    padding: 0;
    overflow: visible;
  }

  .page-news .arc-yearnav__link {
    width: 100%;
    padding: 10px 12px;
    border-radius: 10px;
  }

  .page-news .arc-phases {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-news .arc-entry,
  .page-news .arc-pill,
  .page-news .arc-entry__chev::before,
  .page-news .arc-entry__chev::after {
    transition: none;
  }

  .page-news .arc-entry:hover {
    transform: none;
  }
}