/* ============================================================
   火狐体育官网 · 共享样式 /assets/site.css
   夜场球场 + 档案库秩序：侧边品牌轨道 + 紧凑命令栏
   ============================================================ */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--bar-h) + 18px);
}

body { margin: 0; }

h1, h2, h3, h4, p, figure, blockquote, dl, dd { margin: 0; }

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

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

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

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

table { border-collapse: collapse; }

/* ---------- 2. 设计变量 ---------- */
:root {
  /* 色彩体系 */
  --fx-orange: #FF5A1F;
  --fx-orange-deep: #C9371D;
  --fx-night: #0E1712;
  --fx-night-deep: #0A100C;
  --fx-archive: #143D2B;
  --fx-glass: rgba(28, 42, 35, 0.72);
  --fx-glass-solid: #1C2A23;
  --fx-cyan: #39E6D2;
  --fx-sand: #E8B86A;
  --fx-stone: #A8B3AA;
  --fx-paper: #F3EFE5;
  --fx-amber: #F2A93B;
  --fx-ink: #100C09;

  /* 线条与阴影 */
  --line: rgba(168, 179, 170, 0.24);
  --line-strong: rgba(168, 179, 170, 0.44);
  --shadow-panel: 0 26px 64px -34px rgba(0, 0, 0, 0.92);

  /* 尺度 */
  --rail-w: 68px;
  --bar-h: 66px;
  --page-max: 1280px;
  --pad-x: clamp(1.1rem, 3.4vw, 3.2rem);

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

  /* 动效 */
  --dur: 200ms;
  --dur-slow: 300ms;
  --ease: cubic-bezier(0.2, 0.7, 0.3, 1);
}

/* ---------- 3. 基础排版与页面底色 ---------- */
body {
  min-height: 100vh;
  padding-left: 0;
  color: var(--fx-paper);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.85;
  letter-spacing: 0.01em;
  background:
    radial-gradient(1200px 620px at 84% -12%, rgba(255, 90, 31, 0.17), transparent 62%),
    radial-gradient(900px 540px at 4% 2%, rgba(57, 230, 210, 0.09), transparent 60%),
    radial-gradient(760px 520px at 60% 108%, rgba(20, 61, 43, 0.5), transparent 70%),
    linear-gradient(180deg, #0E1712 0%, #0B140F 56%, #0A100C 100%);
  background-attachment: fixed;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: 0.008em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.4rem, 2.6vw, 2rem); }
h3 { font-size: clamp(1.1rem, 1.6vw, 1.3rem); }

p { text-wrap: pretty; }

strong { font-weight: 700; color: var(--fx-paper); }

code, kbd, samp {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

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

:focus-visible {
  outline: 2px solid var(--fx-cyan);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- 4. 跳至主要内容 ---------- */
.skip-link {
  position: absolute;
  left: 8px;
  top: -80px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--fx-cyan);
  color: #06110D;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  border-radius: 2px;
  transition: top 160ms var(--ease);
}

.skip-link:focus {
  top: 10px;
}

/* ---------- 5. 头部：品牌轨道 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  isolation: isolate;
}

.header-rail { display: none; }

.rail-mark {
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.36em;
  text-transform: uppercase;
  color: var(--fx-sand);
  padding-top: 4px;
}

.rail-rule {
  flex: 1 1 auto;
  width: 1px;
  margin: 16px 0;
  background: linear-gradient(180deg,
    transparent 0%,
    rgba(255, 90, 31, 0.75) 22%,
    rgba(57, 230, 210, 0.5) 62%,
    transparent 100%);
}

.rail-meta {
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 0.56rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(168, 179, 170, 0.75);
}

.rail-year {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--fx-orange);
}

/* ---------- 6. 头部：紧凑命令栏 ---------- */
.header-bar {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 26px);
  min-height: var(--bar-h);
  padding: 0 var(--pad-x);
  background: linear-gradient(180deg, rgba(14, 23, 18, 0.95), rgba(12, 20, 15, 0.9));
  -webkit-backdrop-filter: blur(16px) saturate(1.15);
  backdrop-filter: blur(16px) saturate(1.15);
  border-bottom: 1px solid var(--line);
  transition: box-shadow var(--dur) var(--ease);
}

/* 刻度尺：橙红主信号在头部反复出现 */
.header-bar::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  pointer-events: none;
  opacity: 0.55;
  background: repeating-linear-gradient(
    90deg,
    rgba(255, 90, 31, 0.9) 0 18px,
    rgba(168, 179, 170, 0.16) 18px 20px
  );
}

.site-header[data-scrolled="true"] .header-bar {
  box-shadow: 0 22px 44px -30px rgba(0, 0, 0, 0.95);
}

/* 品牌锁定组合 */
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  padding: 6px 2px;
  border-radius: 2px;
}

.brand__sigil {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  font-family: var(--font-serif);
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--fx-orange);
  background: rgba(255, 90, 31, 0.1);
  border: 1px solid rgba(255, 90, 31, 0.58);
  border-radius: 2px;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.brand:hover .brand__sigil {
  background: var(--fx-orange);
  color: var(--fx-ink);
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.16;
  min-width: 0;
}

.brand__name {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--fx-paper);
  white-space: nowrap;
}

.brand__sub {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fx-stone);
  white-space: nowrap;
}

/* 导航 */
.site-nav {
  flex: 1 1 auto;
  min-width: 0;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(1px, 0.5vw, 8px);
}

.site-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 10px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: rgba(243, 239, 229, 0.7);
  border-radius: 2px;
  white-space: nowrap;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.site-nav__link::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--line-strong);
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.site-nav__link:hover {
  color: var(--fx-paper);
  background: rgba(57, 230, 210, 0.08);
}

.site-nav__link:hover::before {
  background: var(--fx-cyan);
}

.site-nav__link[aria-current="page"] {
  color: var(--fx-paper);
  background: rgba(255, 90, 31, 0.1);
}

.site-nav__link[aria-current="page"]::before {
  background: var(--fx-cyan);
  box-shadow: 0 0 0 3px rgba(57, 230, 210, 0.18);
}

.site-nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 2px;
  height: 2px;
  background: var(--fx-orange);
}

/* 命令栏动作 */
.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  margin-left: auto;
}

.cmd-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 15px;
  font-family: var(--font-sans);
  font-size: 0.79rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  white-space: nowrap;
  border: 1px solid transparent;
  border-radius: 2px;
  transition: background var(--dur) var(--ease),
              color var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              transform 120ms var(--ease);
}

.cmd-btn:active { transform: translateY(1px); }

.cmd-btn--solid {
  background: var(--fx-orange);
  border-color: var(--fx-orange);
  color: var(--fx-ink);
}

.cmd-btn--solid:hover {
  background: #FF7238;
  border-color: #FF7238;
}

.cmd-btn--ghost {
  background: rgba(28, 42, 35, 0.6);
  border-color: var(--line-strong);
  color: var(--fx-paper);
}

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

/* 移动导航按钮 */
.nav-toggle {
  position: relative;
  display: none;
  width: 42px;
  height: 38px;
  flex: 0 0 auto;
  background: rgba(28, 42, 35, 0.7);
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.nav-toggle:hover { border-color: var(--fx-cyan); }

.nav-toggle span {
  position: absolute;
  left: 11px;
  right: 11px;
  height: 2px;
  background: var(--fx-paper);
  transition: transform var(--dur) var(--ease),
              opacity var(--dur) var(--ease),
              top var(--dur) var(--ease);
}

.nav-toggle span:nth-child(1) { top: 12px; }
.nav-toggle span:nth-child(2) { top: 18px; }
.nav-toggle span:nth-child(3) { top: 24px; }

.nav-toggle[aria-expanded="true"] {
  border-color: var(--fx-orange);
  background: rgba(255, 90, 31, 0.16);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  top: 18px;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  top: 18px;
  transform: rotate(-45deg);
}

/* 滚动进度 */
.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 2px;
  pointer-events: none;
  background: rgba(57, 230, 210, 0.06);
}

.scroll-progress__bar {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--fx-orange) 0%, var(--fx-sand) 62%, var(--fx-cyan) 100%);
  transition: width 120ms linear;
}

/* ---------- 7. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(56px, 8vw, 110px);
  padding-bottom: 26px;
  color: var(--fx-paper);
  background: linear-gradient(180deg, #0C1A13 0%, #0A1410 54%, #0A100C 100%);
  border-top: 1px solid var(--line);
}

.site-footer::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 4px;
  opacity: 0.62;
  pointer-events: none;
  background: repeating-linear-gradient(
    90deg,
    var(--fx-orange) 0 30px,
    rgba(232, 184, 106, 0.55) 30px 33px,
    transparent 33px 60px
  );
}

.footer-inner {
  width: 100%;
  max-width: var(--page-max);
  margin: 0 auto;
  padding: clamp(40px, 6vw, 74px) var(--pad-x) 8px;
  display: grid;
  gap: clamp(24px, 3vw, 44px);
  grid-template-columns: minmax(250px, 1.7fr) repeat(3, minmax(112px, 0.72fr));
  align-items: start;
}

.footer-brand { min-width: 0; }

.brand--footer {
  align-items: flex-start;
  padding: 0;
}

.brand--footer .brand__name { font-size: 1.06rem; }

.footer-brand__desc {
  margin-top: 16px;
  max-width: 34ch;
  font-size: 0.86rem;
  line-height: 1.85;
  color: rgba(243, 239, 229, 0.7);
}

.footer-brand__meta { margin-top: 16px; }

.footer-col { min-width: 0; }

.footer-col__title {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fx-sand);
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.footer-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.footer-link {
  display: inline-block;
  padding: 6px 0;
  font-size: 0.9rem;
  color: rgba(243, 239, 229, 0.76);
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.footer-link:hover {
  color: var(--fx-cyan);
  border-bottom-color: rgba(255, 90, 31, 0.6);
}

.footer-contact {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(16px, 2.4vw, 32px);
  margin-top: 6px;
  padding-top: clamp(20px, 2.6vw, 30px);
  border-top: 1px solid var(--line);
}

.footer-contact__row {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
}

.footer-contact__label {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(168, 179, 170, 0.82);
}

.footer-contact__value {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--fx-paper);
  overflow-wrap: anywhere;
}

.footer-bottom {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.footer-legal {
  font-family: var(--font-mono);
  font-size: 0.73rem;
  letter-spacing: 0.04em;
  color: rgba(168, 179, 170, 0.86);
}

.footer-note {
  font-size: 0.73rem;
  letter-spacing: 0.02em;
  color: rgba(168, 179, 170, 0.7);
}

/* ---------- 8. 通用容器与章节 ---------- */
.container {
  width: 100%;
  max-width: var(--page-max);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 18px;
  margin-bottom: clamp(16px, 2.4vw, 28px);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--fx-cyan);
}

.eyebrow::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--fx-orange);
}

.lede {
  font-family: var(--font-serif);
  font-size: clamp(1.02rem, 1.8vw, 1.3rem);
  line-height: 1.8;
  color: rgba(243, 239, 229, 0.88);
}

.rule {
  height: 1px;
  border: 0;
  margin: clamp(22px, 3vw, 38px) 0;
  background: linear-gradient(90deg,
    rgba(255, 90, 31, 0.75) 0%,
    rgba(232, 184, 106, 0.28) 34%,
    rgba(168, 179, 170, 0.1) 100%);
}

.stack {
  display: grid;
  gap: clamp(12px, 1.8vw, 20px);
}

.grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 30px);
}

.grid--2 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

/* ---------- 9. 通用面板 ---------- */
.panel {
  min-width: 0;
  padding: clamp(18px, 2.6vw, 32px);
  background: var(--fx-archive);
  border: 1px solid var(--line);
  border-radius: 3px;
}

.panel--glass {
  background: var(--fx-glass);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-color: rgba(57, 230, 210, 0.18);
}

.panel__title {
  font-family: var(--font-serif);
  font-size: 1.14rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--fx-paper);
}

/* ---------- 10. 状态标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 3px 10px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  line-height: 1.7;
  border: 1px solid currentColor;
  border-radius: 999px;
  white-space: nowrap;
}

.tag--live {
  color: var(--fx-orange);
  background: rgba(255, 90, 31, 0.1);
}

.tag--live::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  animation: fx-pulse 1.9s var(--ease) infinite;
}

.tag--sync {
  color: var(--fx-amber);
  background: rgba(242, 169, 59, 0.1);
}

.tag--archive {
  color: var(--fx-sand);
  background: rgba(232, 184, 106, 0.08);
}

/* ---------- 11. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 21px;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  border: 1px solid transparent;
  border-radius: 2px;
  transition: background var(--dur) var(--ease),
              color var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              transform 120ms var(--ease);
}

.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--fx-orange);
  border-color: var(--fx-orange);
  color: var(--fx-ink);
}

.btn--primary:hover {
  background: #FF7238;
  border-color: #FF7238;
}

.btn--ghost {
  background: rgba(28, 42, 35, 0.55);
  border-color: var(--line-strong);
  color: var(--fx-paper);
}

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

/* ---------- 12. 面包屑 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 20px 0 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: rgba(168, 179, 170, 0.85);
}

.breadcrumb__link {
  color: rgba(243, 239, 229, 0.78);
  transition: color var(--dur) var(--ease);
}

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

.breadcrumb__sep {
  color: rgba(255, 90, 31, 0.75);
}

.breadcrumb__current {
  color: var(--fx-paper);
}

/* ---------- 13. 图片容器（供页面阶段放置素材） ---------- */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--line);
  border-radius: 3px;
  background:
    linear-gradient(135deg, #16352A 0%, #0C1712 56%, #1A130E 100%);
}

.media::before {
  content: "";
  position: absolute;
  inset: 8px;
  z-index: 2;
  border: 1px solid rgba(255, 90, 31, 0.3);
  border-radius: 1px;
  pointer-events: none;
}

.media--wide { aspect-ratio: 21 / 9; }
.media--tall { aspect-ratio: 3 / 4; }

.media__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.media__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 3;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: rgba(243, 239, 229, 0.92);
  background: linear-gradient(0deg, rgba(6, 12, 9, 0.92), rgba(6, 12, 9, 0));
}

/* ---------- 14. 动效关键帧 ---------- */
@keyframes fx-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.35; transform: scale(0.78); }
}

@keyframes fx-nav-drop {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 15. 响应式 ---------- */
@media (min-width: 1100px) {
  body { padding-left: var(--rail-w); }

  .header-rail {
    display: flex;
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--rail-w);
    z-index: 85;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 20px 0 22px;
    background: linear-gradient(180deg,
      rgba(20, 61, 43, 0.92) 0%,
      rgba(14, 30, 22, 0.95) 58%,
      rgba(10, 16, 12, 0.98) 100%);
    border-right: 1px solid var(--line);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
  }

  .skip-link { left: calc(var(--rail-w) + 10px); }
}

@media (max-width: 1180px) {
  .site-nav__link { font-size: 0.8rem; padding: 8px 8px; }
  .brand__sub { display: none; }
}

@media (max-width: 960px) {
  .nav-toggle { display: inline-flex; }

  .header-bar { flex-wrap: nowrap; }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    z-index: 90;
    padding: 10px var(--pad-x) 22px;
    background: linear-gradient(180deg, rgba(18, 32, 26, 0.99), rgba(10, 16, 12, 0.99));
    border-bottom: 1px solid var(--line-strong);
    box-shadow: 0 32px 64px -36px rgba(0, 0, 0, 0.95);
    max-height: calc(100vh - var(--bar-h) - 12px);
    overflow-y: auto;
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
  }

  .site-nav[data-open] {
    display: block;
    animation: fx-nav-drop 220ms var(--ease) both;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .site-nav__link {
    width: 100%;
    justify-content: flex-start;
    padding: 14px 8px;
    font-size: 0.95rem;
    border-bottom: 1px dashed var(--line);
    border-radius: 0;
    background: none;
  }

  .site-nav__link[aria-current="page"] {
    background: rgba(255, 90, 31, 0.12);
    padding-left: 16px;
  }

  .site-nav__link[aria-current="page"]::after {
    left: 4px;
    right: auto;
    top: 10px;
    bottom: 10px;
    width: 2px;
    height: auto;
  }

  .header-actions { gap: 6px; }

  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-brand { grid-column: 1 / -1; }

  .footer-contact { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
  .cmd-btn--ghost { display: none; }
  .cmd-btn { padding: 9px 12px; font-size: 0.75rem; }
  .brand__name { font-size: 0.94rem; }
  .brand__sigil { width: 30px; height: 30px; font-size: 0.94rem; }
  .footer-contact { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 560px) {
  :root { --bar-h: 60px; }
  .footer-inner { grid-template-columns: minmax(0, 1fr); }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .cmd-btn--solid { padding: 8px 10px; }
}

/* ---------- 16. 降低动效偏好 ---------- */
@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;
  }

  .site-nav[data-open] { animation: none; }
  .scroll-progress__bar { transition: none; }
}