/* ===================================================================
   火狐体育 · 共享样式表 /assets/site.css
   顺序：重置 → 变量 → 基础排版 → 工具 → 头部 → 导航 → 按钮
        → 页脚 → 通用组件 → 动效 → 响应式 → 减少动态
   =================================================================== */

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

html,
body,
h1, h2, h3, h4, h5, h6,
p, figure, blockquote, dl, dd, ul, ol { margin: 0; }

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

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

html[data-nav-open="true"] { overflow: hidden; }

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

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

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

:focus-visible {
  outline: 2px solid #FF6B1A;
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- 2. 变量 ---------- */
:root {
  --fx-orange: #FF6B1A;
  --fx-ink: #121212;
  --fx-paper: #F6EFE6;
  --fx-white: #FFFFFF;
  --fx-charcoal: #2A2724;
  --fx-warm-gray: #B9B0A4;
  --fx-blue: #2F7DFF;
  --fx-green: #B6FF3B;
  --fx-ember: #B23E0B;
  --fx-red: #E23A2E;

  --fx-ink-soft: #4B453F;
  --fx-warm-deep: #7A6F63;
  --fx-line: rgba(18, 18, 18, 0.14);
  --fx-line-soft: rgba(18, 18, 18, 0.08);
  --fx-shadow: 0 10px 30px rgba(18, 18, 18, 0.08);

  --fx-header-h: 76px;
  --fx-radius: 3px;

  --fx-font: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --fx-font-num: "DIN Alternate", "JetBrains Mono", "Roboto Mono",
    ui-monospace, "SFMono-Regular", Menlo, monospace;

  color-scheme: light;
}

/* ---------- 3. 基础排版 ---------- */
body {
  min-height: 100vh;
  font-family: var(--fx-font);
  font-size: 16px;
  line-height: 1.65;
  color: var(--fx-ink);
  background-color: var(--fx-paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
  line-height: 1.18;
  letter-spacing: -0.01em;
  font-weight: 900;
}

::selection {
  background: var(--fx-orange);
  color: var(--fx-ink);
}

/* ---------- 4. 工具 ---------- */
.fx-shell {
  width: min(1180px, 100% - 48px);
  margin-inline: auto;
}

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

.fx-skip {
  position: fixed;
  top: 10px;
  left: 12px;
  z-index: 300;
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--fx-ink);
  background: var(--fx-orange);
  border-radius: 2px;
  box-shadow: 0 8px 24px rgba(18, 18, 18, 0.4);
  transform: translateY(-180%);
  transition: transform 0.2s ease;
}

.fx-skip:focus {
  transform: translateY(0);
}

/* ---------- 5. 头部 ---------- */
.fx-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 90;
  color: var(--fx-white);
  background-image: linear-gradient(
    180deg,
    rgba(18, 18, 18, 0.84) 0%,
    rgba(18, 18, 18, 0.44) 58%,
    rgba(18, 18, 18, 0) 100%
  );
  border-bottom: 1px solid transparent;
  transition: background-color 0.24s ease, border-color 0.24s ease,
    box-shadow 0.24s ease;
}

.fx-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 132px;
  height: 3px;
  background: linear-gradient(90deg, var(--fx-orange), var(--fx-ember));
}

.fx-header[data-scrolled="true"] {
  background-color: var(--fx-ink);
  background-image: none;
  border-bottom-color: rgba(255, 107, 26, 0.55);
  box-shadow: 0 10px 30px rgba(18, 18, 18, 0.3);
}

.fx-header__inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: var(--fx-header-h);
}

.fx-header__progress {
  position: absolute;
  bottom: -1px;
  left: 0;
  display: block;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--fx-orange), var(--fx-green));
  transition: width 0.12s linear;
}

/* 品牌 */
.fx-brand {
  position: relative;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
}

.fx-brand__mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  font-family: var(--fx-font-num);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--fx-ink);
  background: var(--fx-orange);
  clip-path: polygon(0 0, 100% 0, 100% 72%, 78% 100%, 0 100%);
}

.fx-brand__mark--footer {
  width: 46px;
  height: 46px;
  font-size: 17px;
  background: linear-gradient(135deg, var(--fx-orange), var(--fx-ember));
}

.fx-brand__text {
  display: flex;
  flex-direction: column;
  gap: 3px;
  line-height: 1.1;
}

.fx-brand__name {
  font-size: 19px;
  font-weight: 900;
  letter-spacing: 0.04em;
  color: var(--fx-white);
}

.fx-brand__tagline {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.18em;
  color: var(--fx-warm-gray);
}

/* ---------- 6. 导航 ---------- */
.fx-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.fx-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
  counter-reset: navidx;
}

.fx-nav__item {
  counter-increment: navidx;
}

.fx-nav__link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 12px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.74);
  transition: color 0.2s ease;
}

.fx-nav__link::before {
  content: counter(navidx, decimal-leading-zero);
  font-family: var(--fx-font-num);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--fx-warm-gray);
  opacity: 0.8;
  transition: color 0.2s ease;
}

.fx-nav__link::after {
  content: "";
  position: absolute;
  right: 12px;
  bottom: 5px;
  left: 12px;
  height: 2px;
  background: var(--fx-orange);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.24s ease;
}

.fx-nav__link:hover {
  color: var(--fx-white);
}

.fx-nav__link:hover::after {
  transform: scaleX(1);
}

.fx-nav__link[aria-current="page"] {
  color: var(--fx-white);
}

.fx-nav__link[aria-current="page"]::before {
  color: var(--fx-orange);
}

.fx-nav__link[aria-current="page"]::after {
  background: var(--fx-green);
  transform: scaleX(1);
}

.fx-nav__cta {
  flex: none;
}

/* 移动端开关 */
.fx-nav-toggle {
  position: relative;
  z-index: 3;
  display: none;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 0 14px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--fx-white);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 2px;
  cursor: pointer;
}

.fx-nav-toggle__bars {
  position: relative;
  display: block;
  width: 18px;
  height: 12px;
}

.fx-nav-toggle__bars::before,
.fx-nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: currentColor;
  transition: transform 0.24s ease, top 0.24s ease;
}

.fx-nav-toggle__bars::before { top: 1px; }
.fx-nav-toggle__bars::after { top: 9px; }

.fx-nav-toggle[aria-expanded="true"] .fx-nav-toggle__bars::before {
  top: 5px;
  transform: rotate(45deg);
}

.fx-nav-toggle[aria-expanded="true"] .fx-nav-toggle__bars::after {
  top: 5px;
  transform: rotate(-45deg);
}

/* ---------- 7. 按钮 ---------- */
.fx-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 20px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-align: center;
  border: 1px solid transparent;
  border-radius: var(--fx-radius);
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease,
    border-color 0.2s ease, transform 0.2s ease;
}

.fx-btn--primary {
  color: var(--fx-ink);
  background: var(--fx-orange);
  border-color: var(--fx-orange);
  box-shadow: 0 8px 20px rgba(255, 107, 26, 0.26);
}

.fx-btn--primary:hover {
  background: #FF8340;
  border-color: #FF8340;
  transform: translateY(-1px);
}

.fx-btn--ghost {
  color: var(--fx-white);
  background: transparent;
  border-color: rgba(255, 255, 255, 0.38);
}

.fx-btn--ghost:hover {
  color: var(--fx-orange);
  border-color: var(--fx-orange);
}

.fx-btn--sm {
  min-height: 38px;
  padding: 0 14px;
  font-size: 13px;
}

.fx-btn--block {
  width: 100%;
}

/* ---------- 8. 页脚 ---------- */
.fx-footer {
  position: relative;
  padding: 76px 0 30px;
  color: rgba(255, 255, 255, 0.72);
  background-color: var(--fx-ink);
  background-image:
    radial-gradient(circle at 92% 0%, rgba(255, 107, 26, 0.16), transparent 46%),
    linear-gradient(180deg, rgba(47, 125, 255, 0.06), transparent 38%);
  overflow: hidden;
}

.fx-footer::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(
    90deg,
    var(--fx-orange) 0 26%,
    var(--fx-blue) 26% 29%,
    var(--fx-green) 29% 32%,
    rgba(255, 255, 255, 0.14) 32% 100%
  );
}

.fx-footer__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 44px 72px;
}

.fx-footer__lead {
  min-width: 0;
}

.fx-footer__brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-height: 44px;
}

.fx-footer__name {
  font-size: 22px;
  font-weight: 900;
  letter-spacing: 0.04em;
  color: var(--fx-white);
}

.fx-footer__summary {
  max-width: 42ch;
  margin-top: 18px;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.74);
}

.fx-footer__contact {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}

.fx-footer__contact-item {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 12px;
  font-size: 13px;
  line-height: 1.6;
}

.fx-footer__contact-key {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--fx-warm-gray);
}

.fx-footer__contact-val {
  color: var(--fx-white);
  word-break: break-all;
}

.fx-footer__note {
  max-width: 46ch;
  margin-top: 20px;
  padding-left: 12px;
  font-size: 12px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.5);
  border-left: 2px solid rgba(255, 107, 26, 0.6);
}

.fx-footer__groups {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px;
  align-content: start;
}

.fx-footer__group-title {
  margin-bottom: 12px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--fx-orange);
}

.fx-footer__links {
  display: grid;
  gap: 2px;
}

.fx-footer__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  padding: 4px 0;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.72);
  transition: color 0.2s ease;
}

.fx-footer__link::before {
  content: "";
  width: 10px;
  height: 1px;
  background: currentColor;
  opacity: 0.55;
  transition: width 0.2s ease, opacity 0.2s ease;
}

.fx-footer__link:hover {
  color: var(--fx-orange);
}

.fx-footer__link:hover::before {
  width: 18px;
  opacity: 1;
}

.fx-footer__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 56px;
  padding-top: 20px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--fx-warm-gray);
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.fx-footer__copy {
  font-family: var(--fx-font-num);
  letter-spacing: 0.06em;
}

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

.fx-footer__legal-link {
  color: rgba(255, 255, 255, 0.72);
  transition: color 0.2s ease;
}

.fx-footer__legal-link:hover {
  color: var(--fx-orange);
}

.fx-footer__sep {
  color: rgba(255, 255, 255, 0.28);
}

/* ---------- 9. 通用组件 ---------- */
/* 面包屑 */
.fx-breadcrumb {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--fx-warm-deep);
}

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

.fx-breadcrumb__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.fx-breadcrumb__item + .fx-breadcrumb__item::before {
  content: "/";
  color: var(--fx-warm-gray);
}

.fx-breadcrumb__link {
  color: var(--fx-ink-soft);
  transition: color 0.2s ease;
}

.fx-breadcrumb__link:hover {
  color: var(--fx-orange);
}

.fx-breadcrumb__item[aria-current="page"] {
  color: var(--fx-ink);
  font-weight: 600;
}

/* 正文容器 */
.fx-prose {
  max-width: 68ch;
  font-size: 17px;
  line-height: 1.78;
  color: var(--fx-ink-soft);
}

.fx-prose > * + * {
  margin-top: 1em;
}

.fx-prose h2,
.fx-prose h3 {
  color: var(--fx-ink);
  letter-spacing: -0.01em;
}

.fx-prose h2 {
  margin-top: 1.8em;
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 900;
}

.fx-prose h3 {
  margin-top: 1.6em;
  font-size: 19px;
  font-weight: 700;
}

.fx-prose ul,
.fx-prose ol {
  display: grid;
  gap: 0.5em;
}

.fx-prose ul > li {
  position: relative;
  padding-left: 1.15em;
}

.fx-prose ul > li::before {
  content: "";
  position: absolute;
  top: 0.78em;
  left: 0;
  width: 8px;
  height: 2px;
  background: var(--fx-orange);
}

.fx-prose ol {
  padding-left: 1.4em;
  list-style: decimal;
}

.fx-prose strong {
  color: var(--fx-ink);
  font-weight: 700;
}

.fx-prose a {
  color: var(--fx-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 章节色带 */
.fx-band {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 10px 32px;
  padding-top: 20px;
  border-top: 1px solid var(--fx-line);
}

.fx-band__index {
  grid-row: span 2;
  font-family: var(--fx-font-num);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--fx-orange);
}

.fx-band__title {
  font-size: clamp(26px, 3.4vw, 46px);
  font-weight: 900;
  letter-spacing: -0.015em;
  color: var(--fx-ink);
}

.fx-band__body {
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--fx-ink-soft);
}

/* 索引标签 */
.fx-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fx-warm-deep);
}

.fx-eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--fx-orange);
}

/* 网格 */
.fx-grid {
  display: grid;
  gap: 20px;
}

.fx-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.fx-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.fx-grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* 卡片 */
.fx-card {
  position: relative;
  padding: 22px;
  background: var(--fx-white);
  border: 1px solid var(--fx-line);
  border-radius: var(--fx-radius);
  box-shadow: var(--fx-shadow);
}

.fx-card__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.fx-card__title {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--fx-ink);
}

.fx-card__meta {
  flex: none;
  font-family: var(--fx-font-num);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--fx-warm-deep);
}

.fx-card__body {
  font-size: 15px;
  line-height: 1.7;
  color: var(--fx-ink-soft);
}

/* 图片容器 */
.fx-media {
  position: relative;
  overflow: hidden;
  background-color: var(--fx-charcoal);
  border-radius: var(--fx-radius);
}

.fx-media::before {
  content: "";
  display: block;
  padding-top: 56.25%;
}

.fx-media--4x3::before { padding-top: 75%; }
.fx-media--1x1::before { padding-top: 100%; }

.fx-media > img,
.fx-media > picture > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.fx-media__overlay {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 28px 16px 14px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--fx-white);
  background: linear-gradient(
    0deg,
    rgba(18, 18, 18, 0.88),
    rgba(18, 18, 18, 0)
  );
}

/* 标签 */
.fx-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--fx-ink-soft);
  background: var(--fx-white);
  border: 1px solid var(--fx-line);
  border-radius: 999px;
}

.fx-tag--blue {
  color: var(--fx-blue);
  background: rgba(47, 125, 255, 0.08);
  border-color: rgba(47, 125, 255, 0.4);
}

.fx-tag--green {
  color: #2C4A00;
  background: rgba(182, 255, 59, 0.35);
  border-color: rgba(182, 255, 59, 0.7);
}

/* 数字 */
.fx-num {
  font-family: var(--fx-font-num);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  line-height: 0.9;
}

/* 区间条带 */
.fx-meter {
  display: grid;
  gap: 8px;
}

.fx-meter__bar {
  position: relative;
  height: 10px;
  overflow: hidden;
  background: rgba(18, 18, 18, 0.1);
  border-radius: 999px;
}

.fx-meter__fill {
  display: block;
  width: var(--fx-value, 0%);
  height: 100%;
  background: var(--fx-orange);
  border-radius: inherit;
  transition: width 0.6s ease;
}

.fx-meter--green .fx-meter__fill { background: var(--fx-green); }
.fx-meter--red .fx-meter__fill { background: var(--fx-red); }

/* 标签页 */
.fx-tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--fx-line);
}

.fx-tab {
  min-height: 44px;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--fx-ink-soft);
  background: var(--fx-white);
  border: 1px solid var(--fx-line);
  border-radius: 2px;
  cursor: pointer;
  transition: color 0.2s ease, background-color 0.2s ease,
    border-color 0.2s ease;
}

.fx-tab:hover {
  border-color: var(--fx-orange);
  color: var(--fx-ink);
}

.fx-tab[aria-selected="true"] {
  color: var(--fx-ink);
  background: var(--fx-orange);
  border-color: var(--fx-orange);
  font-weight: 700;
}

.fx-tabs__panel {
  padding-top: 20px;
}

.fx-tabs__panel[hidden] {
  display: none;
}

/* 章节索引高亮（由 data-spy 控制） */
[data-spy] a[aria-current] {
  color: var(--fx-orange);
  font-weight: 700;
}

/* ---------- 10. 动效 ---------- */
html.fx-js [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.28s ease, transform 0.28s ease;
}

html.fx-js [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 11. 响应式 ---------- */
@media (max-width: 1080px) {
  .fx-nav { gap: 12px; }
  .fx-nav__link { padding: 12px 8px; font-size: 13px; }
  .fx-nav__link::after { right: 8px; left: 8px; }
}

@media (max-width: 900px) {
  :root { --fx-header-h: 64px; }

  .fx-brand__tagline { display: none; }

  .fx-header__inner { gap: 12px; }

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

  .fx-nav {
    position: fixed;
    inset: 0;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    padding: calc(var(--fx-header-h) + 18px) 22px 40px;
    background-color: var(--fx-ink);
    background-image:
      radial-gradient(circle at 88% -6%, rgba(255, 107, 26, 0.26), transparent 46%),
      linear-gradient(180deg, rgba(47, 125, 255, 0.1), transparent 42%);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-14px);
    transition: opacity 0.24s ease, transform 0.24s ease, visibility 0.24s;
    overflow-y: auto;
  }

  .fx-nav[data-open="true"] {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: none;
  }

  .fx-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
    border-top: 1px solid rgba(255, 255, 255, 0.14);
  }

  .fx-nav__item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  }

  .fx-nav__link {
    display: flex;
    align-items: center;
    gap: 14px;
    width: 100%;
    padding: 16px 2px;
    font-size: clamp(20px, 5.2vw, 24px);
    font-weight: 700;
    letter-spacing: 0.02em;
    color: rgba(255, 255, 255, 0.86);
  }

  .fx-nav__link::before {
    font-size: 12px;
    letter-spacing: 0.14em;
    color: var(--fx-warm-gray);
  }

  .fx-nav__link::after { display: none; }

  .fx-nav__link[aria-current="page"],
  .fx-nav__link[aria-current="page"]::before { color: var(--fx-orange); }

  .fx-nav__cta {
    width: 100%;
    margin-top: 26px;
  }

  .fx-footer { padding: 60px 0 26px; }
  .fx-footer__inner { grid-template-columns: minmax(0, 1fr); gap: 40px; }
  .fx-footer__bar { margin-top: 40px; }

  .fx-grid--3,
  .fx-grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .fx-shell { width: calc(100% - 32px); }

  .fx-brand__mark { width: 34px; height: 34px; font-size: 13px; }
  .fx-brand__name { font-size: 17px; }

  .fx-nav-toggle__label { display: none; }

  .fx-footer__groups { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px; }
  .fx-footer__contact-item { grid-template-columns: 68px minmax(0, 1fr); gap: 10px; }

  .fx-band { grid-template-columns: 1fr; gap: 8px; }
  .fx-band__index { grid-row: auto; }

  .fx-grid--2,
  .fx-grid--3,
  .fx-grid--4 { grid-template-columns: minmax(0, 1fr); }

  .fx-card { padding: 18px; }

  .fx-footer__bar { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 380px) {
  .fx-nav__link { font-size: 18px; padding: 14px 2px; }
  .fx-footer__groups { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 12. 减少动态 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  html.fx-js [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .fx-header__progress { transition: none; }
}