/* ==========================================================================
   亚盈体育赛事 · 赛后数据中枢
   /assets/site.css — 共享外壳：reset / 变量 / 中文排版 / 页头 / 页脚 / 基础组件
   ========================================================================== */

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body, h1, h2, h3, h4, h5, p, ul, ol, figure, blockquote, dl, dd { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg, video, canvas { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: inherit; }
[hidden] { display: none !important; }

/* ---------- 变量 ---------- */
:root {
  /* 色彩 */
  --carbon: #0A0D0C;
  --pitch: #10211C;
  --pitch-deep: #0C1A16;
  --seam: #22352E;
  --turf: #25E5A6;
  --turf-soft: rgba(37, 229, 166, 0.12);
  --cold: #59D6E6;
  --ember: #FF8A3D;
  --penalty: #FF4B2B;
  --chalk: #F2F5F3;
  --mist: #93A69E;
  --ink: #04120D;

  /* 结构 */
  --shell-max: 1280px;
  --gutter: clamp(16px, 4vw, 48px);
  --edge: 2px;
  --shadow-hard: 6px 6px 0 rgba(0, 0, 0, 0.55);
  --shadow-soft: 0 18px 40px rgba(0, 0, 0, 0.45);
  --head-h: 66px;
  --rail-h: 50px;
  --axis-w: 72px;

  /* 字体 */
  --font-display: "Archivo Narrow", "Oswald", "Arial Narrow", "Helvetica Neue Condensed", system-ui, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-data: "JetBrains Mono", "SFMono-Regular", "Cascadia Mono", Consolas, "Liberation Mono", "Menlo", monospace;
  --font-body: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", "Microsoft YaHei", sans-serif;

  /* 节奏 */
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 基础排版 ---------- */
body {
  min-height: 100%;
  background: var(--carbon);
  color: var(--chalk);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  padding-bottom: calc(var(--rail-h) + 6px);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(34, 53, 46, 0.5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(34, 53, 46, 0.36) 1px, transparent 1px),
    radial-gradient(120% 80% at 82% -12%, rgba(37, 229, 166, 0.09), transparent 62%),
    radial-gradient(90% 70% at -5% 104%, rgba(89, 214, 230, 0.07), transparent 60%);
  background-size: 72px 72px, 72px 72px, 100% 100%, 100% 100%;
  background-repeat: repeat, repeat, no-repeat, no-repeat;
}

h1, h2, h3, h4 { font-weight: 700; line-height: 1.15; letter-spacing: 0.01em; }
p { line-height: 1.75; }
b, strong { font-weight: 700; }
::selection { background: var(--turf); color: var(--ink); }

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

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

/* ---------- 主内容安全区 ---------- */
main { display: block; padding-top: clamp(92px, 13vh, 142px); }

/* ==========================================================================
   页头
   ========================================================================== */
.site-head {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 80;
  pointer-events: none;
  padding: 14px var(--gutter) 0;
}

.skip-link {
  position: fixed;
  top: -110px; left: 16px;
  z-index: 200;
  padding: 10px 20px;
  background: var(--turf);
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  border-radius: 0 0 10px 10px;
  transition: top 0.22s var(--ease);
}
.skip-link:focus { top: 0; }

.read-progress {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 2px;
  z-index: 95;
  pointer-events: none;
  background: rgba(34, 53, 46, 0.6);
}
.read-progress-bar {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--turf), var(--cold));
  box-shadow: 0 0 12px rgba(37, 229, 166, 0.55);
  transition: width 0.12s linear;
}

/* 胶囊浮岛 */
.head-island {
  pointer-events: auto;
  position: relative;
  max-width: var(--shell-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: clamp(10px, 2vw, 26px);
  padding: 8px 10px 8px 16px;
  min-height: var(--head-h);
  border: var(--edge) solid var(--seam);
  border-radius: 999px;
  background: rgba(16, 33, 28, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-hard);
  transition: padding 0.3s var(--ease), background 0.3s var(--ease), min-height 0.3s var(--ease);
}
html[data-scrolled="true"] .head-island {
  min-height: 54px;
  padding: 5px 8px 5px 14px;
  background: rgba(10, 13, 12, 0.94);
}

/* 品牌 */
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--chalk);
  white-space: nowrap;
  flex: none;
}
.brand-mark {
  position: relative;
  width: 28px; height: 28px;
  border: var(--edge) solid var(--turf);
  border-radius: 7px;
  flex: none;
}
.brand-mark::before {
  content: "";
  position: absolute;
  left: 4px; right: 4px; top: 50%;
  height: 1px;
  background: var(--seam);
}
.brand-mark::after {
  content: "";
  position: absolute;
  left: 50%; top: 50%;
  width: 6px; height: 6px;
  margin: -3px 0 0 -3px;
  border-radius: 50%;
  background: var(--turf);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.07em;
}
.brand-sub {
  font-family: var(--font-data);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--mist);
  transition: opacity 0.25s var(--ease), height 0.25s var(--ease);
}
html[data-scrolled="true"] .brand-sub { opacity: 0; height: 0; overflow: hidden; }

/* 导航 */
.nav { margin-left: auto; }
.nav-list { display: flex; align-items: center; gap: 2px; }
.nav-link {
  display: block;
  padding: 8px 14px;
  border-radius: 999px;
  color: var(--mist);
  font-size: 14px;
  letter-spacing: 0.05em;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}
.nav-link:hover { color: var(--chalk); background: var(--turf-soft); }
.nav-link[aria-current="page"] {
  color: var(--ink);
  background: var(--turf);
  font-weight: 600;
}

/* 工具区 */
.head-util {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-left: 14px;
  border-left: 1px solid var(--seam);
  flex: none;
}
.head-stamp {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mist);
  white-space: nowrap;
}
.head-stamp-num { color: var(--cold); font-weight: 500; }

/* 按钮体系 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border: var(--edge) solid transparent;
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.18s var(--ease), background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.btn-primary { background: var(--turf); color: var(--ink); border-color: var(--turf); }
.btn-primary:hover { background: #5CF0BE; transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--chalk); border-color: var(--seam); }
.btn-ghost:hover { border-color: var(--turf); color: var(--turf); }
.btn-line {
  padding: 8px 4px;
  border-radius: 6px;
  background: transparent;
  color: var(--turf);
  border-color: transparent;
}
.btn-line:hover { color: #5CF0BE; transform: translateX(3px); }
.head-cta { padding: 8px 16px; font-size: 13px; }

/* 移动菜单按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  background: transparent;
  border: var(--edge) solid var(--seam);
  border-radius: 999px;
  color: var(--chalk);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.14em;
  cursor: pointer;
  flex: none;
}
.nav-toggle:hover { border-color: var(--turf); }
.nav-toggle-bar { position: relative; display: block; width: 16px; height: 12px; }
.nav-toggle-bar::before,
.nav-toggle-bar::after {
  content: "";
  position: absolute;
  left: 0; right: 0;
  height: 2px;
  background: var(--turf);
  transition: transform 0.24s var(--ease);
}
.nav-toggle-bar::before { top: 1px; }
.nav-toggle-bar::after { bottom: 1px; }
.head-island[data-open] .nav-toggle-bar::before { transform: translateY(4px) rotate(45deg); }
.head-island[data-open] .nav-toggle-bar::after { transform: translateY(-4px) rotate(-45deg); }

/* 左侧联赛切换轴 */
.league-axis {
  pointer-events: auto;
  position: fixed;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 70;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 16px 8px;
  border: var(--edge) solid var(--seam);
  border-radius: 999px;
  background: rgba(16, 33, 28, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-hard);
}
.league-axis-title {
  writing-mode: vertical-rl;
  font-family: var(--font-data);
  font-size: 10px;
  letter-spacing: 0.34em;
  color: var(--mist);
}
.league-list { display: flex; flex-direction: column; gap: 2px; }
.league-chip {
  writing-mode: vertical-rl;
  padding: 7px 4px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--mist);
  font-size: 11px;
  letter-spacing: 0.16em;
  cursor: pointer;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.league-chip:hover { color: var(--chalk); border-color: var(--seam); }
.league-chip[aria-pressed="true"] {
  color: var(--turf);
  border-color: var(--turf);
  background: var(--turf-soft);
  font-weight: 600;
}
.league-axis-readout {
  display: flex;
  align-items: baseline;
  gap: 2px;
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--mist);
}
.league-axis-num { color: var(--turf); font-size: 13px; font-weight: 700; }
.league-axis-sep { color: var(--seam); }
.league-axis-total { color: var(--mist); }

/* 底部轮次滑轨 */
.round-rail {
  pointer-events: auto;
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 75;
  display: flex;
  align-items: center;
  gap: 14px;
  height: var(--rail-h);
  padding: 0 var(--gutter);
  background: linear-gradient(to top, rgba(10, 13, 12, 0.98), rgba(10, 13, 12, 0.82));
  border-top: 1px solid var(--seam);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.round-rail-label {
  flex: none;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--mist);
}
.round-rail-track {
  flex: 1;
  display: flex;
  gap: 8px;
  padding: 4px 0;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.round-rail-track::-webkit-scrollbar { display: none; }
.round-chip {
  flex: none;
  padding: 5px 13px;
  background: transparent;
  border: 1px solid var(--seam);
  border-radius: 999px;
  color: var(--mist);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.round-chip:hover { color: var(--chalk); border-color: var(--turf); }
.round-chip[aria-pressed="true"] {
  color: var(--ink);
  background: var(--turf);
  border-color: var(--turf);
  font-weight: 700;
}
.round-rail-sync {
  flex: none;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--cold);
}

/* ==========================================================================
   页脚
   ========================================================================== */
.site-foot {
  position: relative;
  z-index: 5;
  margin-top: clamp(56px, 8vw, 120px);
  background: var(--pitch);
  border-top: var(--edge) solid var(--seam);
}
.foot-inner {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: clamp(34px, 5vw, 64px) var(--gutter) clamp(24px, 4vw, 42px);
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1.4fr;
  gap: clamp(20px, 3vw, 40px);
  align-items: start;
}
.foot-brand { display: flex; flex-direction: column; gap: 12px; }
.foot-logo {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--chalk);
}
.foot-sign { font-size: 14px; color: var(--mist); line-height: 1.8; }
.foot-stamp {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mist);
}
.foot-stamp-num { color: var(--cold); font-weight: 500; }

.foot-col { display: flex; flex-direction: column; gap: 12px; }
.foot-col-title {
  position: relative;
  padding-left: 16px;
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--turf);
}
.foot-col-title::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  width: 10px; height: 2px;
  margin-top: -1px;
  background: var(--turf);
}
.foot-list { display: flex; flex-direction: column; gap: 8px; }
.foot-list a {
  font-size: 14px;
  color: var(--mist);
  text-decoration: none;
  transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
}
.foot-list a:hover { color: var(--chalk); padding-left: 4px; }

.foot-contact { display: flex; flex-direction: column; gap: 10px; }
.foot-contact-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 13px;
}
.foot-contact-key {
  font-family: var(--font-data);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--mist);
}
.foot-contact-val {
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--chalk);
  word-break: break-word;
}
.foot-contact-item:nth-of-type(3) .foot-contact-val { font-family: var(--font-body); line-height: 1.7; }
.foot-note { font-size: 12px; line-height: 1.7; color: var(--mist); }

.foot-bar {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 16px var(--gutter) calc(18px + env(safe-area-inset-bottom, 0px));
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 22px;
  border-top: 1px solid var(--seam);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}
.foot-bar-legal { color: var(--mist); }
.foot-bar-nav { display: flex; flex-wrap: wrap; gap: 18px; margin-left: auto; }
.foot-bar-link {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.foot-bar-link:hover { color: var(--turf); border-color: var(--turf); }

/* ==========================================================================
   通用布局与基础组件
   ========================================================================== */
.wrap {
  width: 100%;
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.wrap--top { padding-top: clamp(20px, 4vw, 48px); }

.grid-6 {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: clamp(12px, 1.8vw, 26px);
}
.col-2 { grid-column: span 2; }
.col-3 { grid-column: span 3; }
.col-4 { grid-column: span 4; }
.col-5 { grid-column: span 5; }
.col-6 { grid-column: span 6; }

/* 面包屑 */
.crumbs {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 0 var(--gutter) clamp(14px, 2vw, 26px);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}
.crumbs ol { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.crumbs li { display: flex; align-items: center; gap: 8px; }
.crumbs li + li::before { content: "/"; color: var(--seam); }
.crumbs a { color: var(--mist); text-decoration: none; }
.crumbs a:hover { color: var(--turf); }
.crumbs [aria-current="page"] { color: var(--chalk); }

/* 堆叠画板 */
.panel {
  position: relative;
  background: var(--pitch);
  border: var(--edge) solid var(--seam);
  border-radius: 4px;
  padding: clamp(22px, 3vw, 44px);
  box-shadow: var(--shadow-hard);
  transition: border-color 0.35s var(--ease), background 0.35s var(--ease);
}
.panel--deep { background: var(--pitch-deep); }
.panel--flat {
  background: transparent;
  border-color: transparent;
  border-left: var(--edge) solid var(--seam);
  border-radius: 0;
  box-shadow: none;
  padding-left: clamp(16px, 2vw, 28px);
}
.panel[data-section-active] { border-color: rgba(37, 229, 166, 0.55); }
.panel-index {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--mist);
  transition: color 0.3s var(--ease);
}
.panel[data-section-active] .panel-index { color: var(--turf); }
.panel-title {
  font-family: var(--font-display);
  font-size: clamp(30px, 4.4vw, 50px);
  font-weight: 700;
  line-height: 1.06;
  margin: 12px 0 18px;
  letter-spacing: 0.01em;
}
.panel-lead { font-size: 16px; color: var(--mist); max-width: 62ch; }

/* 指标卡 */
.metric {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: 16px;
  border-top: var(--edge) solid var(--seam);
}
.metric-value {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: clamp(42px, 6.4vw, 80px);
  line-height: 0.95;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--chalk);
}
.metric-unit {
  font-size: 0.32em;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--mist);
  margin-left: 0.35em;
}
.metric-label {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mist);
}
.metric-delta {
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--mist);
  font-variant-numeric: tabular-nums;
}
.metric--warm .metric-value { color: var(--ember); }
.metric--hot .metric-value { color: var(--penalty); }
.metric--cold .metric-value { color: var(--cold); }
.metric--turf .metric-value { color: var(--turf); }

/* 图片容器基础规则 */
.media {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  background: var(--pitch-deep);
  border: var(--edge) solid var(--seam);
}
.media > img,
.media > svg,
.media > video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.55) contrast(1.08) brightness(0.92);
  transition: transform 0.6s var(--ease), filter 0.4s var(--ease);
}
.media:hover > img { transform: scale(1.03); filter: saturate(0.75) contrast(1.05); }
.media--16x9 { aspect-ratio: 16 / 9; }
.media--4x3 { aspect-ratio: 4 / 3; }
.media--1x1 { aspect-ratio: 1 / 1; }
.media--tall { aspect-ratio: 3 / 4; }
.media--wide { aspect-ratio: 21 / 9; }
.media--overlay::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(37, 229, 166, 0.18) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(37, 229, 166, 0.18) 1px, transparent 1px);
  background-size: 48px 48px;
  mix-blend-mode: screen;
}
.media-caption {
  margin-top: 10px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}
.media-placeholder {
  position: relative;
  display: grid;
  place-items: center;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: var(--edge) dashed var(--seam);
  background:
    repeating-linear-gradient(135deg, rgba(34, 53, 46, 0.35) 0 2px, transparent 2px 12px),
    var(--pitch-deep);
  color: var(--mist);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.2em;
}

/* 标签与图例 */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border: 1px solid var(--seam);
  border-radius: 999px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}
.chip--warm { color: var(--ember); border-color: rgba(255, 138, 61, 0.42); }
.chip--cold { color: var(--cold); border-color: rgba(89, 214, 230, 0.42); }
.chip--hot { color: var(--penalty); border-color: rgba(255, 75, 43, 0.45); }
.chip--turf { color: var(--turf); border-color: rgba(37, 229, 166, 0.45); }

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
  padding-top: 14px;
  border-top: 1px solid var(--seam);
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}
.legend-dot {
  display: inline-block;
  width: 8px; height: 8px;
  margin-right: 7px;
  border-radius: 50%;
  vertical-align: middle;
  background: var(--mist);
}
.legend-dot--warm { background: var(--ember); }
.legend-dot--cold { background: var(--cold); }
.legend-dot--hot { background: var(--penalty); }
.legend-dot--turf { background: var(--turf); }

/* 滚动显现 */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.55s var(--ease), transform 0.55s var(--ease);
}
.reveal.is-in { opacity: 1; transform: none; }

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1279px) {
  .league-axis { display: none; }
}

@media (max-width: 1080px) {
  .foot-inner { grid-template-columns: 1fr 1fr; }
  .foot-brand { grid-column: 1 / -1; }
  .foot-contact { grid-column: 1 / -1; }
}

@media (max-width: 960px) {
  :root { --head-h: 60px; --rail-h: 46px; }
  .site-head { padding: 10px var(--gutter) 0; }
  .head-island {
    border-radius: 26px;
    padding: 8px 10px 8px 14px;
    gap: 10px;
  }
  html[data-scrolled="true"] .head-island { padding: 6px 10px 6px 14px; }
  .brand-sub { display: none; }
  .nav-toggle { display: inline-flex; }
  .head-util { padding-left: 0; border-left: 0; gap: 0; }
  .head-stamp { display: none; }
  .head-cta { padding: 7px 12px; font-size: 12px; letter-spacing: 0.04em; }

  .nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 0; right: 0;
    display: none;
    margin: 0;
    padding: 10px;
    background: rgba(12, 26, 22, 0.98);
    border: var(--edge) solid var(--seam);
    border-radius: 22px;
    box-shadow: var(--shadow-hard);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }
  .head-island[data-open] .nav { display: block; }
  .nav-list { flex-direction: column; align-items: stretch; gap: 2px; }
  .nav-link { padding: 13px 16px; font-size: 15px; }
  .nav-link[aria-current="page"] { background: var(--turf-soft); color: var(--turf); }

  .round-rail { gap: 10px; }
  .round-rail-sync { display: none; }

  .grid-6 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .col-2, .col-3, .col-4, .col-5, .col-6 { grid-column: span 2; }
}

@media (max-width: 640px) {
  .foot-inner { grid-template-columns: 1fr; }
  .foot-bar { flex-direction: column; align-items: flex-start; gap: 8px; }
  .foot-bar-nav { margin-left: 0; gap: 16px; }
  .metric-value { font-size: clamp(38px, 12vw, 64px); }
}

@media (max-width: 560px) {
  .grid-6 { grid-template-columns: minmax(0, 1fr); }
  .col-2, .col-3, .col-4, .col-5, .col-6 { grid-column: span 1; }
}

/* ==========================================================================
   动效与无障碍
   ========================================================================== */
@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;
  }
  .reveal { opacity: 1; transform: none; }
  .read-progress-bar { transition: none; }
}