/* =========================================================
   完美体育 · 竞技场赛道界面系统
   /assets/site.css
   ========================================================= */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  min-height: 100vh;
  background: linear-gradient(135deg, #0B1D3A 0%, #182A4A 100%);
  background-attachment: fixed;
  color: #E8ECF3;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    linear-gradient(115deg, transparent 30%, rgba(57,255,20,0.05) 44%, rgba(57,255,20,0.015) 52%, transparent 68%),
    linear-gradient(65deg, transparent 12%, rgba(255,77,46,0.035) 42%, transparent 62%);
}

main { display: block; }

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

a { color: var(--c-green); }

:root {
  --c-deep: #0B1D3A;
  --c-card: #182A4A;
  --c-green: #39FF14;
  --c-orange: #FF4D2E;
  --c-moon: #E8ECF3;
  --c-mist: #B0C4DE;
  --c-data: #00E676;
  --c-warn: #FFD600;
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", SimSun, Georgia, "Times New Roman", serif;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", "SF Mono", "Menlo", Consolas, "Courier New", monospace;
  --radius-card: 4px 22px 4px 22px;
  --radius-pill: 999px 4px 999px 4px;
  --wrap-max: 1440px;
  --wrap-narrow: 1180px;
  --transition: 0.25s cubic-bezier(0.25, 0.46, 0.45, 1);
  --space-section: clamp(56px, 8vw, 96px);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 900;
  line-height: 1.3;
  color: var(--c-moon);
  letter-spacing: 0.01em;
}

h1 { font-size: clamp(2.2rem, 1.4rem + 3.2vw, 4.2rem); }
h2 { font-size: clamp(1.6rem, 1.1rem + 2.2vw, 2.7rem); }
h3 { font-size: clamp(1.2rem, 1rem + 1.1vw, 1.7rem); }

p { margin-block: 0.85em; }

::selection {
  background: rgba(57,255,20,0.3);
  color: var(--c-moon);
}

:focus-visible {
  outline: 3px solid var(--c-green);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 容器与布局 ---------- */

.container {
  width: min(100% - 48px, var(--wrap-max));
  margin-inline: auto;
}

.container--narrow {
  --wrap-max: var(--wrap-narrow);
}

.main-content {
  position: relative;
  z-index: 1;
  min-height: 55vh;
}

.skip-link {
  position: fixed;
  top: -80px;
  left: 20px;
  z-index: 10000;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--c-green);
  color: var(--c-deep);
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--radius-pill);
  box-shadow: 0 8px 24px rgba(11,29,58,0.45), 0 0 0 2px rgba(255,77,46,0.4);
  transition: top 0.3s cubic-bezier(0.25, 0.46, 0.45, 1);
}

.skip-link:focus-visible {
  top: 16px;
  outline: 3px solid var(--c-orange);
  outline-offset: 2px;
}

.score-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 10002;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--c-green), var(--c-warn) 55%, var(--c-orange));
  transform: scaleX(0);
  transform-origin: 0 50%;
  pointer-events: none;
}

/* ---------- 头部：刊头记分牌 ---------- */

.site-header {
  position: relative;
  z-index: 50;
  background: linear-gradient(135deg, #0B1D3A 0%, #182A4A 100%);
  border-bottom: 1px solid rgba(57,255,20,0.3);
}

.scoreboard {
  position: relative;
  padding: 44px 0 30px;
  overflow: hidden;
}

.scoreboard::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 78% 18%, rgba(57,255,20,0.08), transparent 60%),
    radial-gradient(ellipse at 12% 85%, rgba(255,77,46,0.06), transparent 50%);
  pointer-events: none;
}

.scoreboard::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 8%;
  width: 84%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(176,196,222,0.22) 30%, rgba(176,196,222,0.22) 70%, transparent);
}

.scoreboard-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 8px 28px 8px 14px;
  background: linear-gradient(100deg, var(--c-moon) 0%, var(--c-mist) 100%);
  border-radius: var(--radius-pill);
  text-decoration: none;
  box-shadow: 0 10px 32px rgba(11,29,58,0.45), 0 0 0 1px rgba(57,255,20,0.25);
  transition: transform var(--transition), box-shadow var(--transition);
}

.brand:hover {
  transform: translateY(-2px) translateX(-2px);
  box-shadow: 0 14px 40px rgba(57,255,20,0.22), 0 0 0 2px rgba(57,255,20,0.6);
}

.brand-bolt {
  position: relative;
  display: inline-block;
  width: 22px;
  height: 38px;
  flex: none;
  filter: drop-shadow(0 0 10px rgba(57,255,20,0.75));
}

.bolt-zap {
  position: absolute;
  inset: 0;
  display: block;
  background: var(--c-green);
  clip-path: polygon(55% 0%, 100% 0%, 45% 60%, 75% 60%, 0% 100%, 15% 55%, 55% 55%, 55% 0%);
}

.brand-name {
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 1.55rem;
  line-height: 1.1;
  letter-spacing: 0.1em;
  color: var(--c-deep);
  white-space: nowrap;
}

.board-tagline {
  display: flex;
  align-items: center;
  margin: 0;
}

.board-word {
  padding: 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.28em;
  color: var(--c-green);
  text-transform: uppercase;
}

.board-dot {
  width: 5px;
  height: 5px;
  flex: none;
  border-radius: 50%;
  background: var(--c-green);
  box-shadow: 0 0 8px rgba(57,255,20,0.8);
}

.board-dot--orange {
  background: var(--c-orange);
  box-shadow: 0 0 8px rgba(255,77,46,0.8);
}

/* ---------- 头部：导航带 ---------- */

.nav-zone {
  position: relative;
  z-index: 40;
  background: rgba(24,42,74,0.96);
  border-top: 1px solid rgba(176,196,222,0.1);
  border-bottom: 1px solid rgba(57,255,20,0.28);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.nav-zone-inner {
  position: relative;
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px 0;
}

.nav-list {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  list-style: none;
}

.nav-item { line-height: 1.2; }

.nav-link {
  display: inline-block;
  padding: 14px 18px;
  color: var(--c-moon);
  text-decoration: none;
  font-size: 15px;
  letter-spacing: 0.06em;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
}

.nav-link:hover {
  color: var(--c-green);
  background: rgba(57,255,20,0.07);
}

.nav-link[aria-current="page"] {
  color: var(--c-green);
  border-bottom-color: var(--c-green);
  background: rgba(57,255,20,0.09);
  font-weight: 700;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px 8px;
  background: transparent;
  border: 1px solid rgba(57,255,20,0.4);
  border-radius: 6px;
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.nav-toggle:hover {
  border-color: var(--c-green);
  box-shadow: 0 0 14px rgba(57,255,20,0.3);
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--c-green);
  border-radius: 999px;
  transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 1), opacity 0.25s;
}

.nav-toggle-bar:nth-child(2) {
  width: 60%;
  align-self: flex-end;
}

.nav-cta {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  padding: 10px 20px;
  font-size: 13px;
}

/* ---------- 头部：赛道快捷入口 ---------- */

.race-lane {
  background: rgba(11,29,58,0.55);
  border-bottom: 1px solid rgba(176,196,222,0.08);
}

.race-lane-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
}

.race-entry {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 24px;
  color: var(--c-mist);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  transition: color var(--transition), background var(--transition), transform var(--transition);
}

.race-entry:hover {
  color: var(--c-green);
  background: rgba(57,255,20,0.07);
  transform: translateX(3px);
}

.lane-pin {
  width: 9px;
  height: 9px;
  flex: none;
  background: var(--c-green);
  border-radius: 2px;
  transform: rotate(45deg);
  transition: background var(--transition), box-shadow var(--transition);
}

.lane-pin--orange {
  background: var(--c-orange);
  box-shadow: 0 0 8px rgba(255,77,46,0.5);
}

.lane-pin--green {
  background: var(--c-data);
  box-shadow: 0 0 8px rgba(0,230,118,0.5);
}

.lane-divider {
  width: 1px;
  height: 16px;
  flex: none;
  background: rgba(176,196,222,0.18);
}

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 24px;
  border: 2px solid transparent;
  border-radius: var(--radius-pill);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-decoration: none;
  cursor: pointer;
  transition: color var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.btn-green {
  background: linear-gradient(90deg, var(--c-green) 0%, var(--c-data) 100%);
  color: var(--c-deep);
  border-color: rgba(57,255,20,0.5);
  box-shadow: 0 6px 24px rgba(57,255,20,0.25);
}

.btn-green:hover {
  transform: translateY(-2px) translateX(-2px);
  box-shadow: 0 12px 36px rgba(57,255,20,0.4);
  background: linear-gradient(90deg, var(--c-data) 0%, var(--c-green) 100%);
}

.btn-orange {
  background: linear-gradient(90deg, var(--c-orange) 0%, #FF6A3D 100%);
  color: var(--c-deep);
  border-color: rgba(255,77,46,0.5);
  box-shadow: 0 6px 24px rgba(255,77,46,0.28);
}

.btn-orange:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 36px rgba(255,77,46,0.42);
}

.btn-outline {
  background: transparent;
  color: var(--c-green);
  border-color: rgba(57,255,20,0.55);
}

.btn-outline:hover {
  background: rgba(57,255,20,0.1);
  box-shadow: 0 0 20px rgba(57,255,20,0.15);
  transform: translateX(2px);
}

.btn:focus-visible {
  outline: 3px solid var(--c-orange);
  outline-offset: 2px;
}

/* ---------- 区块与标题 ---------- */

.section {
  position: relative;
  padding-block: var(--space-section);
}

.section--tight {
  padding-block: 40px;
}

.section-heading {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 36px;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(1.6rem, 1.2rem + 1.8vw, 2.4rem);
  color: var(--c-moon);
}

.section-heading::before {
  content: "";
  width: 12px;
  height: 12px;
  flex: none;
  background: var(--c-green);
  border-radius: 2px;
  transform: rotate(45deg);
  box-shadow: 0 0 14px rgba(57,255,20,0.55);
}

.dynamic-line {
  display: block;
  width: 100%;
  height: 4px;
  border: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(57,255,20,0.5) 25%, rgba(255,77,46,0.55) 60%, transparent 100%);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 14px 0 0;
  margin: 0;
  list-style: none;
  font-size: 13px;
  color: var(--c-mist);
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb a {
  color: var(--c-mist);
  text-decoration: none;
  transition: color 0.2s;
}

.breadcrumb a:hover {
  color: var(--c-green);
}

.breadcrumb li + li::before {
  content: "";
  width: 6px;
  height: 6px;
  display: block;
  background: var(--c-orange);
  border-radius: 50%;
}

.breadcrumb [aria-current="page"] {
  color: var(--c-green);
  font-weight: 600;
}

.prose {
  max-width: 840px;
  margin-inline: auto;
  font-size: 16px;
  line-height: 2;
  color: var(--c-moon);
  letter-spacing: 0.01em;
}

.prose h1,
.prose h2 {
  margin: 1.4em 0 0.6em;
}

.prose h1:first-child {
  margin-top: 0;
}

.prose ul,
.prose ol {
  margin: 1em 0;
  padding-left: 1.4em;
}

.prose li {
  margin-bottom: 0.4em;
}

.prose a {
  color: var(--c-green);
  text-decoration: underline dashed 1px rgba(57,255,20,0.4);
  text-underline-offset: 4px;
}

.prose a:hover {
  text-decoration-style: solid;
}

/* ---------- Bento 信息板 ---------- */

.bento-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
}

.bento-item {
  grid-column: span 2;
  min-height: 100px;
}

.bento-item--wide { grid-column: span 4; }
.bento-item--half { grid-column: span 3; }
.bento-item--full { grid-column: 1 / -1; }

/* ---------- 卡片 ---------- */

.card {
  position: relative;
  padding: 32px;
  background: linear-gradient(155deg, rgba(24,42,74,0.95) 0%, rgba(11,29,58,0.92) 100%);
  border: 1px solid rgba(176,196,222,0.12);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 1), border-color 0.3s, box-shadow 0.3s;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, rgba(57,255,20,0.7), rgba(57,255,20,0));
  transition: width 0.3s;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(57,255,20,0.4);
  box-shadow: 0 18px 44px rgba(11,29,58,0.55), 0 0 20px rgba(57,255,20,0.06);
}

.card--highlight::before {
  width: 6px;
  background: linear-gradient(180deg, var(--c-orange), rgba(255,77,46,0.2));
}

/* ---------- 数据模块 ---------- */

.data-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.stat-cell {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.data-value {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(1.8rem, 1.4rem + 1.8vw, 3rem);
  line-height: 1;
  color: var(--c-green);
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 18px rgba(57,255,20,0.4);
}

.data-label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-mist);
}

/* ---------- 标签 ---------- */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  border: 1px solid rgba(57,255,20,0.45);
  border-radius: 999px 2px 999px 2px;
  color: var(--c-green);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  background: rgba(57,255,20,0.08);
  text-transform: uppercase;
}

.badge::before {
  content: "";
  width: 5px;
  height: 5px;
  background: var(--c-green);
  border-radius: 50%;
  box-shadow: 0 0 6px rgba(57,255,20,0.8);
}

.badge--warn {
  border-color: rgba(255,210,0,0.5);
  color: var(--c-warn);
  background: rgba(255,210,0,0.08);
}

.badge--warn::before {
  background: var(--c-warn);
  box-shadow: 0 0 6px rgba(255,210,0,0.8);
}

.badge--alert {
  border-color: rgba(255,77,46,0.5);
  color: var(--c-orange);
  background: rgba(255,77,46,0.08);
}

.badge--alert::before {
  background: var(--c-orange);
  box-shadow: 0 0 6px rgba(255,77,46,0.8);
}

/* ---------- 图片容器 ---------- */

.image-frame {
  position: relative;
  overflow: hidden;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--c-card) 0%, var(--c-deep) 100%);
  border: 1px solid rgba(176,196,222,0.14);
  border-radius: var(--radius-card);
}

.image-frame img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-frame::before,
.image-frame::after {
  content: "";
  position: absolute;
  left: -10%;
  width: 120%;
  height: 2px;
  pointer-events: none;
}

.image-frame::before {
  top: 30%;
  background: rgba(57,255,20,0.25);
  transform: rotate(-18deg);
}

.image-frame::after {
  top: 62%;
  background: rgba(255,77,46,0.18);
  transform: rotate(-18deg);
}

.image-frame--portrait { aspect-ratio: 3 / 4; }
.image-frame--wide { aspect-ratio: 21 / 9; }

/* ---------- 页脚 ---------- */

.site-footer {
  position: relative;
  z-index: 20;
  margin-top: 96px;
  background: linear-gradient(180deg, rgba(24,42,74,0.6) 0%, var(--c-deep) 45%);
  border-top: 1px solid rgba(57,255,20,0.28);
}

.footer-stripe {
  height: 6px;
  background: linear-gradient(90deg, transparent 0%, rgba(57,255,20,0.8) 30%, rgba(255,77,46,0.8) 70%, transparent 100%);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.3fr;
  gap: 48px;
  padding: 64px 0 52px;
}

.footer-brand-col {
  max-width: 360px;
}

.brand-footer {
  background: rgba(11,29,58,0.7);
  box-shadow: 0 0 0 1px rgba(57,255,20,0.35), 0 8px 24px rgba(11,29,58,0.4);
}

.brand-footer .brand-name {
  color: var(--c-green);
}

.brand-footer:hover {
  box-shadow: 0 0 0 2px rgba(57,255,20,0.6), 0 14px 36px rgba(57,255,20,0.18);
}

.footer-trust {
  margin: 20px 0 12px;
  padding-left: 16px;
  border-left: 2px solid rgba(57,255,20,0.5);
  font-size: 14px;
  line-height: 1.9;
  color: var(--c-mist);
}

.footer-domain {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--c-green);
}

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

.footer-heading {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 18px;
  letter-spacing: 0.08em;
  color: var(--c-moon);
}

.footer-heading::before {
  content: "";
  width: 20px;
  height: 3px;
  border-radius: 999px;
  background: var(--c-green);
  box-shadow: 0 0 10px rgba(57,255,20,0.5);
}

.footer-list {
  list-style: none;
}

.footer-list li {
  margin-bottom: 10px;
}

.footer-list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--c-mist);
  text-decoration: none;
  font-size: 14px;
  transition: color var(--transition), transform var(--transition);
}

.footer-list a::before {
  content: "";
  width: 6px;
  height: 6px;
  flex: none;
  background: var(--c-green);
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
  transition: transform var(--transition);
}

.footer-list a:hover {
  color: var(--c-green);
}

.footer-list a:hover::before {
  transform: translateX(4px);
}

.footer-contact {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--c-mist);
}

.footer-contact a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px dotted rgba(176,196,222,0.35);
  transition: color var(--transition), border-color var(--transition);
}

.footer-contact a:hover {
  color: var(--c-green);
  border-bottom-color: var(--c-green);
}

.contact-badge {
  width: 9px;
  height: 9px;
  flex: none;
  background: var(--c-mist);
  border-radius: 2px;
  transform: rotate(45deg);
}

.contact-badge--green {
  background: var(--c-green);
  box-shadow: 0 0 8px rgba(57,255,20,0.5);
}

.contact-badge--orange {
  background: var(--c-orange);
  box-shadow: 0 0 8px rgba(255,77,46,0.5);
}

.footer-bottom {
  background: rgba(11,29,58,0.8);
  border-top: 1px solid rgba(176,196,222,0.1);
  padding: 16px 0;
}

.footer-bottom-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 16px;
  font-size: 13px;
  color: var(--c-mist);
}

.footer-copy {
  margin: 0;
  font-size: 13px;
  color: var(--c-mist);
}

.footer-icp {
  margin: 0;
  padding: 4px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-green);
  border: 1px solid rgba(57,255,20,0.3);
  border-radius: 999px;
}

.footer-business {
  width: 100%;
  margin: 0;
  color: var(--c-mist);
  opacity: 0.85;
  font-size: 13px;
  text-align: center;
}

/* ---------- 响应式 ---------- */

@media (max-width: 1180px) {
  .footer-grid {
    grid-template-columns: 1.2fr 1fr 1fr 1.2fr;
    gap: 36px;
  }
}

@media (max-width: 1023px) {
  .scoreboard {
    padding: 26px 0 20px;
  }

  .scoreboard-inner {
    gap: 14px;
  }

  .main-nav {
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 8px;
    padding: 8px 0;
  }

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

  .nav-list {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    padding: 6px 0 12px;
  }

  .main-nav[data-open] .nav-list {
    display: flex;
  }

  .main-nav[data-open] .nav-cta {
    display: inline-flex;
  }

  .main-nav[data-open] .nav-toggle-bar:nth-child(1) {
    width: 100%;
    transform: translateY(7px) rotate(45deg);
  }

  .main-nav[data-open] .nav-toggle-bar:nth-child(2) {
    opacity: 0;
    transform: translateX(-6px);
  }

  .main-nav[data-open] .nav-toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .nav-item {
    width: 100%;
  }

  .nav-link {
    display: block;
    padding: 12px 10px;
    border-bottom: 1px solid rgba(176,196,222,0.08);
  }

  .nav-link:hover {
    border-bottom-color: transparent;
  }

  .nav-link[aria-current="page"] {
    border-bottom-color: transparent;
    border-left: 3px solid var(--c-green);
    background: rgba(57,255,20,0.07);
    color: var(--c-green);
  }

  .nav-cta {
    position: static;
    transform: none;
    display: none;
    margin: 2px 0 6px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px 28px;
    padding: 48px 0 40px;
  }

  .footer-brand-col {
    max-width: none;
  }

  .footer-bottom-inner {
    justify-content: center;
    text-align: center;
  }

  .footer-business {
    width: 100%;
  }
}

@media (max-width: 767px) {
  body {
    background-attachment: scroll;
  }

  .race-lane-inner {
    justify-content: flex-start;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .race-lane-inner::-webkit-scrollbar {
    display: none;
  }

  .race-entry {
    padding: 10px 16px;
    white-space: nowrap;
  }

  .race-entry:first-child {
    padding-left: 20px;
  }

  .race-entry:last-child {
    padding-right: 20px;
  }

  .bento-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .bento-item,
  .bento-item--wide,
  .bento-item--half,
  .bento-item--full {
    grid-column: span 1;
  }

  .data-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    padding: 14px 0;
  }
}

@media (max-width: 600px) {
  .container {
    width: min(100% - 20px, var(--wrap-max));
  }

  .skip-link {
    left: 10px;
  }

  .brand {
    padding: 6px 18px 6px 10px;
  }

  .brand-bolt {
    width: 18px;
    height: 32px;
  }

  .brand-name {
    font-size: 1.25rem;
  }

  .board-word {
    padding: 0 8px;
    font-size: 10px;
    letter-spacing: 0.18em;
  }

  .section-heading {
    margin-bottom: 24px;
  }

  .card {
    padding: 24px;
  }
}

/* ---------- 动效偏好 ---------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}