/* ============================================================
   yunkai-entry.com.cn — /assets/site.css
   共享外壳：reset / 变量 / 中文排版 / 头部 / 页脚 / 通用组件
   ============================================================ */

/* ---------- 1. reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body,
h1, h2, h3, h4, p, ul, ol, figure, blockquote { margin: 0; }

ul, ol { padding: 0; list-style: none; }

img, svg, video { display: block; max-width: 100%; height: auto; }

button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }

a { color: inherit; text-decoration: none; }

table { border-collapse: collapse; width: 100%; }

/* ---------- 2. 变量 ---------- */
:root {
  --ink: #0A0E0D;
  --panel: #121A18;
  --line: #2E4A3F;
  --green: #12A36B;
  --cyan: #35E8B5;
  --orange: #FF8A3D;
  --red: #FF4D5E;
  --paper: #F2EDE0;
  --muted: #97A6A0;
  --clay: #C08B5C;

  --grid: rgba(46, 74, 63, .22);
  --soft: rgba(53, 232, 181, .08);
  --shadow-hard: 6px 6px 0 rgba(18, 163, 107, .26);
  --shadow-lift: 8px 8px 0 rgba(53, 232, 181, .22);

  --radius: 2px;
  --rail: 72px;
  --bar: 56px;
  --maxw: 1280px;
  --pad: 24px;

  --font-display: "Oswald", "Arial Narrow", "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", Georgia, serif;
  --font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, Menlo, Consolas, "Noto Sans SC", monospace;

  color-scheme: dark;
}

/* ---------- 3. 基础排版 ---------- */
body {
  min-height: 100vh;
  background-color: var(--ink);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 64px 64px;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: .01em;
  padding-bottom: calc(var(--bar) + 28px);
}

h1, h2, h3 { font-weight: 700; }

::selection { background: var(--cyan); color: #06231A; }

/* ---------- 4. 通用工具与容器 ---------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad);
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.grid { display: grid; gap: 24px; }
.grid--12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.split { display: grid; gap: 32px; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.split--reverse { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }

.divider { height: 2px; background: var(--line); border: 0; margin: 32px 0; }

/* ---------- 5. 正文容器 ---------- */
.prose { max-width: 760px; }
.prose > * + * { margin-top: 1.1em; }
.prose p { line-height: 1.85; }
.prose h2 {
  font-family: var(--font-serif);
  font-size: clamp(24px, 3vw, 32px);
  line-height: 1.35;
  letter-spacing: 0;
  margin-top: 1.8em;
}
.prose h3 {
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: .02em;
  color: var(--cyan);
  margin-top: 1.6em;
}
.prose li { position: relative; padding-left: 1.5em; margin-bottom: .5em; }
.prose li::before { content: "—"; position: absolute; left: 0; color: var(--clay); }
.prose strong { color: var(--cyan); font-weight: 600; }
.prose blockquote {
  border-left: 3px solid var(--clay);
  padding: 4px 0 4px 18px;
  font-family: var(--font-serif);
  color: var(--muted);
}

/* ---------- 6. 章节抬头 / 面包屑 ---------- */
.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 12px;
  margin-bottom: 22px;
  border-bottom: 2px solid var(--line);
}
.section-head__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--cyan);
}
.section-head__num::after {
  content: "";
  display: inline-block;
  width: 34px;
  height: 2px;
  margin-left: 10px;
  vertical-align: middle;
  background: var(--cyan);
}
.section-head__title {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 46px);
  line-height: 1.05;
  letter-spacing: -.01em;
}
.section-head__note {
  margin-left: auto;
  font-family: var(--font-serif);
  font-size: 14px;
  color: var(--muted);
}

.breadcrumb { padding-top: 20px; }
.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--muted);
}
.breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}
.breadcrumb__item a:hover { color: var(--cyan); }

/* ---------- 7. 按钮 / 胶囊 / 标签 / 数据胶囊 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  transition: transform .16s ease, border-color .16s ease, background-color .16s ease, color .16s ease;
}
.btn:hover { transform: translate(-2px, -2px); border-color: var(--cyan); color: var(--cyan); }
.btn--primary { background: var(--cyan); border-color: var(--cyan); color: #06231A; }
.btn--primary:hover { background: var(--green); border-color: var(--green); color: #052018; }
.btn--orange { background: var(--orange); border-color: var(--orange); color: #2A1200; }
.btn--orange:hover { background: var(--clay); border-color: var(--clay); color: #21130A; }

.pill {
  display: inline-flex;
  align-items: center;
  height: 34px;
  padding: 0 16px;
  border: 2px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .08em;
  white-space: nowrap;
  transition: transform .16s ease, border-color .16s ease, background-color .16s ease, color .16s ease;
}
.pill--solid { background: var(--cyan); border-color: var(--cyan); color: #06231A; }
.pill--solid:hover { background: var(--paper); border-color: var(--paper); }
.pill--ghost { background: transparent; color: var(--paper); }
.pill--ghost:hover { border-color: var(--orange); color: var(--orange); transform: translateY(-2px); }

.tag {
  display: inline-flex;
  align-items: center;
  height: 24px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--muted);
}
.tag--cyan { color: var(--cyan); border-color: rgba(53, 232, 181, .5); }
.tag--orange { color: var(--orange); border-color: rgba(255, 138, 61, .5); }
.tag--live { color: var(--red); border-color: rgba(255, 77, 94, .55); }
.tag--live::before {
  content: "";
  width: 6px; height: 6px;
  margin-right: 7px;
  border-radius: 50%;
  background: var(--red);
  animation: dot-pulse 2s ease-in-out infinite;
}

.data-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
}
.data-chip__value { color: var(--cyan); }

/* ---------- 8. 卡片 / 旁注 / 索引 ---------- */
.card {
  background: var(--panel);
  border: 2px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}
.card--hard { box-shadow: var(--shadow-hard); }
.card__label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--orange);
}
.card__title {
  font-family: var(--font-serif);
  font-size: 20px;
  line-height: 1.45;
  margin-top: 8px;
}
.card__meta {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--muted);
}

.note {
  border-left: 3px solid var(--clay);
  padding: 6px 0 6px 16px;
  font-family: var(--font-serif);
  font-size: 16px;
  line-height: 1.7;
  color: var(--muted);
}
.note__index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--clay);
  margin-right: 8px;
}

.index-list { border-top: 2px solid var(--line); }
.index-list__item {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr) auto;
  gap: 16px;
  align-items: baseline;
  padding: 14px 4px;
  border-bottom: 1px solid var(--line);
  transition: background-color .16s ease;
}
.index-list__item:hover { background: var(--soft); }
.index-list__num { font-family: var(--font-mono); font-size: 13px; color: var(--clay); }
.index-list__title { font-family: var(--font-serif); font-size: 18px; line-height: 1.45; }
.index-list__meta { font-family: var(--font-mono); font-size: 12px; color: var(--muted); }

/* ---------- 9. 图片容器（页面阶段放置占位） ---------- */
.media {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}
.media img,
.media svg,
.media video { width: 100%; height: 100%; object-fit: cover; }
.media--tall { aspect-ratio: 4 / 5; }
.media--square { aspect-ratio: 1 / 1; }
.media--ui { aspect-ratio: 9 / 19; }
.media--data { aspect-ratio: 16 / 10; }
.media--diagonal { clip-path: polygon(0 0, 100% 0, 100% 86%, 0 100%); }
.media__placeholder {
  width: 100%; height: 100%;
  background-color: var(--panel);
  background-image:
    repeating-linear-gradient(135deg, rgba(46, 74, 63, .55) 0 2px, transparent 2px 12px),
    linear-gradient(160deg, rgba(18, 163, 107, .18), rgba(10, 14, 13, .9));
  animation: stripe-drift 6s linear infinite;
}
.media__caption {
  position: absolute;
  left: 0; bottom: 0;
  max-width: 100%;
  padding: 8px 12px;
  border-top: 2px solid var(--line);
  background: rgba(10, 14, 13, .88);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--paper);
}

/* ---------- 10. 跳转链接 + 阅读进度 ---------- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  padding: 12px 18px;
  background: var(--cyan);
  color: #06231A;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
}
.skip-link:focus { left: 12px; top: 12px; }

.read-progress {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 3px;
  z-index: 90;
  background: rgba(46, 74, 63, .45);
  pointer-events: none;
}
.read-progress__bar {
  display: block;
  width: 0;
  height: 100%;
  background: var(--cyan);
  transition: width .08s linear;
}

/* ---------- 11. 左侧品牌轨道 ---------- */
.rail {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 55;
  width: var(--rail);
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 24px 0;
  background: var(--panel);
  border-right: 2px solid var(--line);
}
.rail__brand {
  writing-mode: vertical-rl;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .34em;
  color: var(--paper);
}
.rail__rule { flex: 1 1 auto; width: 2px; background: var(--line); }
.rail__status {
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .24em;
  color: var(--cyan);
}
.rail__dots { display: flex; flex-direction: column; gap: 10px; }
.rail__dot {
  width: 8px; height: 8px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  transition: background-color .16s ease, box-shadow .16s ease, border-color .16s ease;
}
.rail__dot.is-active {
  background: var(--cyan);
  border-color: var(--cyan);
  box-shadow: 0 0 0 4px rgba(53, 232, 181, .16);
}

/* ---------- 12. 刊头 ---------- */
.masthead {
  position: sticky;
  top: 0;
  z-index: 60;
  background: var(--ink);
  border-bottom: 2px solid var(--line);
}
.masthead__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 16px var(--pad) 0;
}
.masthead__top {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  grid-template-areas: "meta brand hint";
  align-items: center;
  gap: 16px;
  padding-bottom: 12px;
}

.masthead__index {
  grid-area: meta;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--muted);
}
.masthead__index::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: var(--line);
}
.masthead__index-num { color: var(--cyan); }

.masthead__brand {
  grid-area: brand;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  text-align: center;
}
.masthead__brand-cn {
  font-family: var(--font-display);
  font-size: clamp(26px, 3.4vw, 44px);
  font-weight: 800;
  line-height: .95;
  letter-spacing: -.02em;
  transition: font-size .2s ease;
}
.masthead__brand-sub {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .32em;
  color: var(--muted);
}
.masthead__hint {
  grid-area: hint;
  justify-self: end;
  text-align: right;
  font-family: var(--font-serif);
  font-size: 14px;
  color: var(--muted);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  height: 36px;
  padding: 0 12px;
  border: 2px solid var(--line);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--paper);
}
.nav-toggle__bars {
  display: block;
  width: 16px; height: 2px;
  background: var(--cyan);
  box-shadow: 0 -5px 0 var(--cyan), 0 5px 0 var(--cyan);
}

.nav { border-top: 1px solid var(--line); }
.nav__list { display: flex; justify-content: center; flex-wrap: wrap; }
.nav__link {
  display: block;
  padding: 12px 20px;
  border-bottom: 2px solid transparent;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--muted);
  transition: color .16s ease, border-color .16s ease, background-color .16s ease;
}
.nav__link:hover { color: var(--paper); border-bottom-color: var(--line); background: var(--soft); }
.nav__link[aria-current="page"] { color: var(--cyan); border-bottom-color: var(--cyan); }

.masthead.is-compact .masthead__inner { padding-top: 8px; }
.masthead.is-compact .masthead__top { padding-bottom: 6px; }
.masthead.is-compact .masthead__brand-cn { font-size: 22px; }
.masthead.is-compact .masthead__brand-sub,
.masthead.is-compact .masthead__hint { display: none; }
.masthead.is-compact .nav__link { padding: 9px 20px; }

/* ---------- 13. 底部常驻横条 ---------- */
.bottom-bar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 70;
  height: var(--bar);
  background: var(--panel);
  border-top: 2px solid var(--line);
}
.bottom-bar__inner {
  display: flex;
  align-items: center;
  gap: 18px;
  height: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad);
}
.bottom-bar__actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }

.ticker {
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
  padding: 0 14px;
}
.ticker__track {
  display: flex;
  width: max-content;
  animation: ticker-slide 28s linear infinite;
}
.ticker__item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding-right: 64px;
  font-family: var(--font-body);
  font-size: 14px;
  white-space: nowrap;
  color: var(--muted);
}
.ticker__time { font-family: var(--font-mono); font-size: 13px; color: var(--cyan); }

.bottom-bar__cta {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--orange);
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
  transition: border-color .16s ease, color .16s ease;
}
.bottom-bar__cta::after { content: "→"; margin-left: 6px; }
.bottom-bar__cta:hover { color: var(--paper); border-bottom-color: var(--orange); }

/* ---------- 14. 页脚 ---------- */
.footer {
  margin-top: 72px;
  padding: 56px 0 40px;
  background: var(--panel);
  border-top: 2px solid var(--line);
}
.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.25fr;
  gap: 40px;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad);
}
.footer__brand-name {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.01em;
}
.footer__tagline {
  margin-top: 12px;
  max-width: 34ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}
.footer__icp {
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--clay);
  padding-top: 10px;
  border-top: 1px solid var(--line);
  display: inline-block;
}
.footer__title {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
}
.footer__title::before {
  content: "";
  display: inline-block;
  width: 14px;
  height: 2px;
  margin-right: 8px;
  vertical-align: middle;
  background: var(--cyan);
}
.footer__links { margin-top: 14px; column-gap: 24px; }
.footer__links li { margin-bottom: 8px; }
.footer__links a {
  display: inline-block;
  font-size: 14.5px;
  color: var(--muted);
  border-bottom: 1px solid transparent;
  transition: color .16s ease, border-color .16s ease;
}
.footer__links a:hover { color: var(--cyan); border-bottom-color: var(--cyan); }

.footer__contact { margin-top: 0; }
.footer__contact-line {
  margin-top: 10px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--muted);
  word-break: break-word;
}
.footer__contact-key {
  display: inline-block;
  min-width: 44px;
  margin-right: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--orange);
}
.footer__meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  max-width: var(--maxw);
  margin: 40px auto 0;
  padding: 16px var(--pad) 0;
  border-top: 1px solid var(--line);
}
.footer__meta-note {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--muted);
}

/* ---------- 15. 回到顶部 ---------- */
.to-top {
  position: fixed;
  right: 22px;
  bottom: calc(var(--bar) + 18px);
  z-index: 65;
  padding: 10px 16px;
  border: 2px solid var(--cyan);
  border-radius: 999px;
  background: rgba(10, 14, 13, .92);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  transition: transform .16s ease, background-color .16s ease, color .16s ease;
}
.to-top:hover { transform: translateY(-3px); background: var(--cyan); color: #06231A; }
.to-top[hidden] { display: none; }

/* ---------- 16. 动画 ---------- */
@keyframes ticker-slide {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@keyframes dot-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .45; transform: scale(.8); }
}
@keyframes stripe-drift {
  from { background-position: 0 0, 0 0; }
  to { background-position: 48px 0, 0 0; }
}

/* ---------- 17. 焦点可见 ---------- */
:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: var(--radius);
}

/* ---------- 18. 断点 ---------- */
@media (min-width: 1024px) {
  body { padding-left: var(--rail); }
  .rail { display: flex; }
  .bottom-bar { padding-left: var(--rail); }
}

@media (min-width: 900px) {
  .nav { display: block; }
  .nav-toggle { display: none; }
}

@media (max-width: 1023px) {
  .footer__inner { grid-template-columns: 1fr 1fr; }
  .footer__contact { grid-column: 1 / -1; }
}

@media (max-width: 899px) {
  .masthead__top {
    grid-template-columns: auto minmax(0, 1fr) auto;
    grid-template-areas: "meta brand toggle";
    gap: 10px;
  }
  .masthead__hint { display: none; }
  .nav-toggle { grid-area: toggle; display: inline-flex; justify-self: end; }
  .masthead__brand-cn { font-size: clamp(22px, 6vw, 30px); }
  .masthead__brand-sub { font-size: 9px; letter-spacing: .22em; }

  .nav { display: none; border-top: 2px solid var(--line); }
  .nav[data-open="true"] { display: block; }
  .nav__list { flex-direction: column; padding: 6px 0 10px; }
  .nav__link {
    padding: 12px 4px;
    border-bottom: 1px solid var(--line);
    font-size: 15px;
    letter-spacing: .1em;
  }
  .nav__link[aria-current="page"] { border-bottom-color: var(--cyan); background: var(--soft); }

  .split,
  .split--reverse,
  .grid--2,
  .grid--3,
  .grid--12 { grid-template-columns: minmax(0, 1fr); }

  .ticker { border-left: 0; border-right: 0; padding: 0 10px; }
  .ticker__item { font-size: 13px; padding-right: 44px; }
}

@media (max-width: 719px) {
  :root { --bar: 58px; }
  body { font-size: 15.5px; }

  .bottom-bar__inner { gap: 10px; }
  .ticker { display: none; }
  .bottom-bar__actions { flex: 1 1 auto; }
  .pill { height: 32px; padding: 0 12px; font-size: 12px; }
  .bottom-bar__cta { font-size: 12.5px; }

  .footer { padding: 40px 0 32px; }
  .footer__inner { grid-template-columns: 1fr; gap: 32px; }
  .footer__meta { flex-direction: column; }
  .to-top { right: 14px; bottom: calc(var(--bar) + 12px); }

  .section-head__note { margin-left: 0; width: 100%; }
}

/* ---------- 19. 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  .ticker__track { animation: none; transform: none; }
  .media__placeholder { animation: none; }
  .read-progress__bar { transition: none; }
}