/* ==========================================================================
   j9看台 · 共享站件 /assets/site.css
   夜场墨绿底 + 蓝图网格 + 框架式导航 + 信号色系统
   ========================================================================== */

/* ---------- 1. 变量 ---------- */
:root {
  /* 色彩 */
  --ink: #0A1512;
  --ink-2: #10241D;
  --structure: #14181A;
  --gem-teal: #14322B;
  --gem-wine: #3E1220;
  --lime: #C8FF4D;
  --amber: #FFA23A;
  --violet: #A98BFF;
  --paper: #E9F2EC;
  --muted: #93A79D;
  --muted-soft: rgba(147, 167, 157, .68);
  --line: rgba(147, 167, 157, .20);
  --line-strong: rgba(147, 167, 157, .44);
  --grid-line: rgba(147, 167, 157, .055);

  /* 字体 */
  --font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", Menlo, Consolas, "Liberation Mono", monospace;

  /* 字号阶梯 12 / 14 / 17 / 21 / 28 / 40 / 56 / 72 */
  --fs-12: 0.75rem;
  --fs-14: 0.875rem;
  --fs-17: 1.0625rem;
  --fs-21: 1.3125rem;
  --fs-28: 1.75rem;
  --fs-40: 2.5rem;
  --fs-56: 3.5rem;
  --fs-72: 4.5rem;

  /* 尺寸与节奏 */
  --shell: 1240px;
  --pad: clamp(16px, 4vw, 40px);
  --gap: 24px;

  /* 动效 */
  --ease: cubic-bezier(.22, .61, .36, 1);
  --dur: 160ms;
}

/* ---------- 2. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 132px;
}

body,
h1, h2, h3, h4, h5,
p, ul, ol, figure, blockquote, dl, dd, fieldset {
  margin: 0;
}

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

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

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

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

[hidden] { display: none !important; }

/* ---------- 3. 基础中文排版 ---------- */
body {
  min-height: 100vh;
  background-color: var(--ink);
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 88px 88px;
  background-position: -1px -1px;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: var(--fs-17);
  line-height: 1.75;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-underline-offset: 3px;
}

h1, h2, h3, h4 {
  line-height: 1.14;
  font-weight: 800;
  letter-spacing: -.02em;
  text-wrap: balance;
}

h1 { font-size: var(--fs-56); }
h2 { font-size: var(--fs-40); }
h3 { font-size: var(--fs-28); }

::selection {
  background: var(--lime);
  color: #08110E;
}

:where(a, button, [tabindex]):focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

/* ---------- 4. 布局容器 ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.grid { display: grid; gap: var(--gap); }

.grid--split {
  grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: start;
}

/* ---------- 5. 跳转链 ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 400;
  padding: 12px 20px;
  background: var(--lime);
  color: #08110E;
  font-size: var(--fs-14);
  font-weight: 700;
  letter-spacing: .02em;
  transform: translateY(-200%);
  transition: transform var(--dur) var(--ease);
}

.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
  outline: 2px solid var(--paper);
  outline-offset: 2px;
}

/* ---------- 6. 通用类型 ---------- */
.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .04em;
}

.label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
}

.lede {
  max-width: 32em;
  font-size: var(--fs-21);
  line-height: 1.62;
  color: #CFE0D6;
}

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

/* ---------- 7. 正文容器 ---------- */
.prose {
  max-width: 34em;
  font-size: var(--fs-17);
  line-height: 1.78;
  color: var(--paper);
}

.prose > * + * { margin-top: 1.1em; }

.prose h2 {
  font-size: var(--fs-28);
  margin-top: 2.2em;
  padding-top: 1.1em;
  border-top: 1px solid var(--line);
}

.prose h3 {
  font-size: var(--fs-21);
  margin-top: 1.8em;
}

.prose ul,
.prose ol { display: grid; gap: .5em; }

.prose li {
  position: relative;
  padding-left: 1.5em;
}

.prose li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .74em;
  width: 11px;
  height: 1px;
  background: var(--lime);
}

.prose a {
  color: var(--lime);
  border-bottom: 1px solid rgba(200, 255, 77, .42);
}

.prose strong { color: #FFFFFF; }

/* ---------- 8. 面包屑 ---------- */
.breadcrumb {
  padding-block: 18px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .1em;
  color: var(--muted);
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.breadcrumb__link {
  color: var(--muted);
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.breadcrumb__link:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.breadcrumb__sep { color: rgba(147, 167, 157, .42); }

.breadcrumb [aria-current="page"] { color: var(--paper); }

/* ---------- 9. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 18px;
  font-size: var(--fs-14);
  font-weight: 700;
  letter-spacing: .02em;
  line-height: 1.2;
  border: 1px solid transparent;
  border-radius: 0;
  transition:
    transform var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    color var(--dur) var(--ease),
    background var(--dur) var(--ease);
}

.btn--lime {
  background: var(--lime);
  color: #08110E;
  box-shadow: 3px 3px 0 rgba(200, 255, 77, .18);
}

.btn--lime:hover {
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 rgba(200, 255, 77, .38);
}

.btn--ghost {
  border-color: var(--line-strong);
  color: var(--paper);
  background: rgba(147, 167, 157, .04);
}

.btn--ghost:hover {
  border-color: var(--lime);
  color: var(--lime);
  transform: translateY(-1px);
}

/* ---------- 10. 标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
  background: rgba(147, 167, 157, .06);
  border: 1px solid var(--line-strong);
  border-radius: 0;
}

.tag--lime {
  color: var(--lime);
  border-color: rgba(200, 255, 77, .45);
  background: rgba(200, 255, 77, .08);
}

.tag--amber {
  color: var(--amber);
  border-color: rgba(255, 162, 58, .45);
  background: rgba(255, 162, 58, .08);
}

.tag--violet {
  color: var(--violet);
  border-color: rgba(169, 139, 255, .45);
  background: rgba(169, 139, 255, .10);
}

/* ---------- 11. 章节标题条 ---------- */
.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 14px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.section-head__idx {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .18em;
  color: var(--amber);
}

.section-head__title {
  font-size: var(--fs-28);
  font-weight: 800;
  letter-spacing: -.02em;
}

.section-head__note {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- 12. 分区面板 ---------- */
.panel {
  position: relative;
  padding: clamp(20px, 3vw, 36px);
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 0;
}

.panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: var(--lime);
  opacity: .8;
}

.panel--teal {
  background: var(--gem-teal);
  border-color: rgba(200, 255, 77, .16);
}

.panel--wine {
  background: var(--gem-wine);
  border-color: rgba(169, 139, 255, .24);
}

.panel--wine::before { background: var(--violet); }

.panel--structure {
  background: var(--structure);
  border-color: var(--line-strong);
}

.panel--structure::before { background: var(--amber); }

/* ---------- 13. 图片容器基础 ---------- */
.media { margin: 0; position: relative; }

.media__frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  background-color: var(--gem-teal);
  background-image:
    repeating-linear-gradient(115deg, rgba(147, 167, 157, .09) 0 1px, transparent 1px 9px),
    linear-gradient(150deg, var(--gem-teal), var(--ink-2) 58%, var(--structure));
}

.media__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(120% 90% at 16% 0%, rgba(200, 255, 77, .18), transparent 58%),
    radial-gradient(90% 70% at 92% 100%, rgba(255, 162, 58, .14), transparent 62%);
}

.media__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(1.06) contrast(1.05);
}

.media__cap {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}

.media--wide .media__frame { aspect-ratio: 21 / 9; }
.media--tall .media__frame { aspect-ratio: 4 / 5; }

/* ---------- 14. 主题筛选 ---------- */
.filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.filters__btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 36px;
  padding: 8px 13px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
  background: rgba(147, 167, 157, .04);
  border: 1px solid var(--line);
  border-radius: 0;
  transition:
    color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    background var(--dur) var(--ease);
}

.filters__btn:hover {
  color: var(--paper);
  border-color: var(--line-strong);
  transform: translateY(-1px);
}

.filters__btn[aria-pressed="true"] {
  color: #08110E;
  background: var(--lime);
  border-color: var(--lime);
  font-weight: 700;
}

.filters__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--muted);
}

/* ---------- 15. 滚动进度（JS 注入） ---------- */
.scroll-meter {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 300;
  pointer-events: none;
  background: linear-gradient(90deg, var(--lime), var(--amber));
  transform: scaleX(0);
  transform-origin: 0 50%;
}

/* ---------- 16. 页头外壳 ---------- */
.masthead {
  position: sticky;
  top: 0;
  z-index: 120;
  background: rgba(10, 21, 18, .96);
  border-top: 2px solid var(--lime);
  border-bottom: 1px solid var(--line-strong);
  box-shadow: 0 14px 34px rgba(0, 0, 0, .34);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.masthead__strip {
  background: var(--structure);
  border-bottom: 1px solid var(--line);
}

.masthead__strip-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 34px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--muted);
}

.masthead__status {
  display: flex;
  align-items: center;
  gap: 9px;
  color: #B9CEC3;
}

.masthead__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted-soft);
}

.pulse {
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lime);
  animation: signal-pulse 2.4s var(--ease) infinite;
}

@keyframes signal-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(200, 255, 77, .55); }
  70%  { box-shadow: 0 0 0 9px rgba(200, 255, 77, 0); }
  100% { box-shadow: 0 0 0 0 rgba(200, 255, 77, 0); }
}

.masthead__bar { position: relative; }

.masthead__bar-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: clamp(14px, 2.4vw, 32px);
  padding-block: 12px;
}

/* 品牌 */
.masthead__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: none;
}

.masthead__mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--lime);
  border: 1px solid var(--lime);
  background: rgba(200, 255, 77, .08);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.masthead__brand:hover .masthead__mark {
  background: var(--lime);
  color: #08110E;
}

.masthead__brandtext strong {
  display: block;
  font-size: var(--fs-21);
  font-weight: 800;
  letter-spacing: -.01em;
  line-height: 1.1;
}

.masthead__brandtext em {
  display: block;
  margin-top: 4px;
  font-style: normal;
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--muted);
}

/* 框架式导航 */
.rail { min-width: 0; }

.rail__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2px;
}

.rail__link {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 7px;
  padding: 10px 12px;
  font-size: 15px;
  line-height: 1.3;
  color: var(--muted);
  border: 1px solid transparent;
  border-radius: 0;
  transition:
    color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    background var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}

.rail__idx {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .1em;
  color: rgba(147, 167, 157, .62);
  transition: color var(--dur) var(--ease);
}

.rail__link:hover {
  color: var(--paper);
  border-color: var(--line-strong);
  background: rgba(147, 167, 157, .06);
  transform: translateY(-1px);
}

.rail__link[aria-current="page"] {
  color: var(--lime);
  border-color: rgba(200, 255, 77, .40);
  background: rgba(200, 255, 77, .07);
  font-weight: 700;
}

.rail__link[aria-current="page"] .rail__idx { color: var(--lime); }

.rail__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 4px;
  height: 1px;
  background: var(--lime);
}

/* 行动区 */
.masthead__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
}

/* 汉堡按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--lime);
  border: 1px solid var(--line-strong);
  background: rgba(200, 255, 77, .06);
  border-radius: 0;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.nav-toggle:hover {
  border-color: var(--lime);
  background: rgba(200, 255, 77, .14);
}

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  transition: background var(--dur) var(--ease);
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: currentColor;
  transition: transform var(--dur) var(--ease), top var(--dur) var(--ease);
}

.nav-toggle__bars::before { top: -6px; }
.nav-toggle__bars::after { top: 6px; }

.nav-toggle[aria-expanded="true"] .nav-toggle__bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { top: 0; transform: rotate(-45deg); }

/* ---------- 17. 页脚 ---------- */
.site-foot {
  position: relative;
  margin-top: clamp(48px, 8vw, 96px);
  background: var(--structure);
  border-top: 1px solid var(--line-strong);
}

.site-foot::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 128px;
  height: 2px;
  background: var(--lime);
}

.site-foot__signal {
  border-bottom: 1px solid var(--line);
  background-image: linear-gradient(90deg, rgba(200, 255, 77, .06), transparent 58%);
}

.site-foot__signal-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: clamp(24px, 4vw, 40px);
}

.site-foot__closing {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1.1;
  color: var(--paper);
}

.site-foot__stamp {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--muted);
}

.site-foot__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  gap: clamp(28px, 5vw, 64px);
  padding-block: clamp(32px, 5vw, 56px);
}

.site-foot__intro { min-width: 0; }

.site-foot__brand {
  display: inline-block;
  padding-bottom: 6px;
  font-size: var(--fs-28);
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--paper);
  border-bottom: 2px solid var(--lime);
  transition: color var(--dur) var(--ease);
}

.site-foot__brand:hover { color: var(--lime); }

.site-foot__tagline {
  max-width: 24em;
  margin-top: 16px;
  font-size: var(--fs-14);
  line-height: 1.72;
  color: var(--muted);
}

.site-foot__hours {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--amber);
}

.site-foot__nav {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(148px, 1fr));
  gap: 24px 20px;
  min-width: 0;
}

.foot-col__title {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding-bottom: 12px;
  margin-bottom: 12px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--paper);
  border-bottom: 1px solid var(--line);
}

.foot-col__idx {
  font-size: 10px;
  letter-spacing: .12em;
  color: var(--amber);
}

.foot-col__list { display: grid; gap: 4px; }

.foot-col__list a {
  display: inline-block;
  padding: 6px 0;
  font-size: var(--fs-14);
  color: var(--muted);
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.foot-col__list a:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.site-foot__contact {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(228px, 1fr));
  gap: 12px 28px;
  padding-block: 22px;
  border-top: 1px solid var(--line);
}

.site-foot__contact-item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  font-size: 13px;
  color: #B9CEC3;
}

.site-foot__contact-item .label {
  font-size: 10px;
  letter-spacing: .16em;
  color: var(--amber);
}

.site-foot__contact-item .mono {
  font-size: 13px;
  color: var(--paper);
  word-break: break-all;
}

.site-foot__legal {
  border-top: 1px solid var(--line);
  background: rgba(0, 0, 0, .26);
}

.site-foot__legal-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 26px;
  padding-block: 18px;
  font-size: var(--fs-12);
  letter-spacing: .04em;
  color: var(--muted);
}

/* ---------- 18. 平板与中屏 ---------- */
@media (max-width: 1100px) {
  .rail__link { padding: 9px 9px; font-size: 14px; }
  .rail__idx { display: none; }
  .masthead__brandtext em { display: none; }
}

@media (max-width: 999px) {
  .grid--split { grid-template-columns: minmax(0, 1fr); }
  .site-foot__body { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 19. 移动端 ---------- */
@media (max-width: 899px) {
  html { scroll-padding-top: 104px; }

  .masthead__strip-inner {
    justify-content: flex-start;
    min-height: 30px;
    font-size: 10px;
    letter-spacing: .1em;
  }

  .masthead__meta { display: none; }

  .masthead__bar-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
    padding-block: 10px;
  }

  .masthead__mark { width: 36px; height: 36px; font-size: 13px; }
  .masthead__brandtext strong { font-size: var(--fs-17); }

  .nav-toggle { display: inline-flex; }

  .rail {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    max-height: calc(100vh - 110px);
    overflow-y: auto;
    padding: 12px var(--pad) 20px;
    background: #0B1A16;
    border-bottom: 1px solid var(--line-strong);
    box-shadow: 0 24px 48px rgba(0, 0, 0, .55);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition:
      opacity var(--dur) var(--ease),
      transform var(--dur) var(--ease),
      visibility var(--dur) var(--ease);
  }

  .rail[data-open] {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .rail__list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 4px;
    justify-content: stretch;
  }

  .rail__link {
    align-items: center;
    min-height: 48px;
    padding: 12px 14px;
    font-size: 15px;
    border-color: var(--line);
    background: rgba(147, 167, 157, .04);
  }

  .rail__idx { display: inline; }
  .rail__link[aria-current="page"]::after { display: none; }

  .filters__btn { min-height: 44px; padding: 10px 14px; }

  .media--wide .media__frame { aspect-ratio: 16 / 9; }
}

@media (max-width: 560px) {
  .masthead__status { font-size: 9px; letter-spacing: .06em; gap: 7px; }
  .masthead__brandtext em { display: none; }
  .masthead__actions { gap: 8px; }
  .masthead__actions .btn--lime { padding: 9px 11px; font-size: 12px; }
  .masthead__mark { width: 34px; height: 34px; font-size: 12px; }
  .rail__link { font-size: 14px; }
  .site-foot__legal-inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 400px) {
  .rail__list { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 20. 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }

  .pulse {
    animation: none;
    box-shadow: 0 0 0 4px rgba(200, 255, 77, .18);
  }

  .rail__link:hover,
  .filters__btn:hover,
  .btn--lime:hover,
  .btn--ghost:hover { transform: none; }

  .rail[data-open] { transform: none; }
}