/* ============ 设计变量 ============ */
:root {
  --color-bg: #F5F0E8;
  --color-ink: #1A1A1A;
  --color-blue: #0A1F44;
  --color-blue-light: #3D5A80;
  --color-neon: #C6FF00;
  --color-orange: #FF6B00;
  --color-red: #E63946;
  --color-white: #FFFFFF;

  --font-heading: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;

  --track-w: 108px;
  --announce-h: 36px;
  --radius: 16px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --shadow-pop: 0 12px 32px rgba(10, 31, 68, 0.18);
  --shadow-glass: 0 8px 30px rgba(10, 31, 68, 0.10);
  --ease: 180ms cubic-bezier(0.2, 0.7, 0.3, 1);
  --announce-z: 40;
  --track-z: 50;
  --nav-z: 60;
}

/* ============ Reset 与基础 ============ */
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
*, *::before, *::after {
  box-sizing: border-box;
}
img, svg {
  display: block;
  max-width: 100%;
  height: auto;
}
h1, h2, h3, h4 {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 900;
  line-height: 1.25;
  color: var(--color-ink);
}
p {
  margin-top: 0;
}
ul, ol {
  margin: 0;
  padding: 0;
}
ul {
  list-style: none;
}
a {
  color: var(--color-blue-light);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--ease), background-color var(--ease), border-color var(--ease), box-shadow var(--ease), transform var(--ease);
}
a:hover {
  color: var(--color-blue);
}
a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--color-orange);
  outline-offset: 3px;
  border-radius: 3px;
}
::selection {
  background: var(--color-neon);
  color: var(--color-blue);
}

/* ============ 无障碍跳过链接 ============ */
.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 200;
  transform: translateY(-180%);
  background: var(--color-orange);
  color: var(--color-white);
  padding: 12px 18px;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  box-shadow: var(--shadow-pop);
  transition: transform var(--ease);
}
.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
  color: var(--color-white);
  outline: 3px solid var(--color-neon);
  outline-offset: 2px;
}

/* ============ 头部容器 ============ */
.site-header {
  position: relative;
  z-index: 1;
}

/* ============ 赛场公告条 ============ */
.announce-bar {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--announce-h);
  display: flex;
  align-items: center;
  background: var(--color-blue);
  color: var(--color-bg);
  z-index: var(--announce-z);
  overflow: hidden;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.announce-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  margin-left: var(--track-w);
  padding-right: 20px;
  min-width: 0;
}
.announce-label {
  flex: 0 0 auto;
  background: var(--color-neon);
  color: var(--color-blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.1em;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
}
.announce-viewport {
  flex: 1;
  min-width: 0;
  overflow: hidden;
}
.announce-track {
  display: flex;
  width: max-content;
  animation: announce-scroll 26s linear infinite;
  will-change: transform;
}
.announce-text {
  display: inline-block;
  padding-right: 3rem;
  color: rgba(245, 240, 232, 0.86);
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
}
@keyframes announce-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ============ 左侧品牌轨道 ============ */
.brand-track {
  position: fixed;
  top: var(--announce-h);
  left: 0;
  bottom: 0;
  width: var(--track-w);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 30px 0 24px;
  background: var(--color-blue);
  color: var(--color-bg);
  z-index: var(--track-z);
  overflow: hidden;
}
.brand-track::before {
  content: "";
  position: absolute;
  top: -40px;
  right: -14px;
  width: 160px;
  height: 240px;
  background: repeating-linear-gradient(-45deg, transparent 0 10px, rgba(198, 255, 0, 0.05) 10px 20px);
  transform: rotate(8deg);
  pointer-events: none;
}
.brand-track::after {
  content: "";
  position: absolute;
  left: -18px;
  bottom: 30%;
  width: 64px;
  height: 64px;
  background: rgba(198, 255, 0, 0.10);
  border: 2px solid rgba(198, 255, 0, 0.28);
  border-radius: 6px;
  transform: rotate(45deg) skew(-8deg);
  pointer-events: none;
}
.brand-lockup {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--color-bg);
  text-decoration: none;
  position: relative;
  z-index: 2;
}
.brand-lockup:hover {
  color: var(--color-bg);
}
.brand-emblem {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  background: var(--color-neon);
  color: var(--color-blue);
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 18px;
  letter-spacing: 0;
  border-radius: 6px;
  transform: skew(-6deg) rotate(-2deg);
  box-shadow: 4px 4px 0 rgba(255, 255, 255, 0.14);
}
.brand-name {
  writing-mode: vertical-rl;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 20px;
  letter-spacing: 0.42em;
  margin-top: 10px;
  color: var(--color-bg);
}
.brand-tag {
  writing-mode: vertical-rl;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.32em;
  color: rgba(245, 240, 232, 0.56);
}
.track-stripe {
  display: block;
  width: 34px;
  height: 4px;
  background: var(--color-neon);
  transform: skew(-24deg);
  box-shadow: 0 0 12px rgba(198, 255, 0, 0.55);
  position: relative;
  z-index: 2;
}
.track-current {
  margin: 0;
  writing-mode: vertical-rl;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.5em;
  padding: 10px 8px;
  border: 1px solid rgba(198, 255, 0, 0.38);
  border-radius: var(--radius-pill);
  color: var(--color-neon);
  background: rgba(198, 255, 0, 0.05);
  position: relative;
  z-index: 2;
}
.track-progress {
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  height: calc(var(--progress, 0) * 1%);
  background: linear-gradient(180deg, var(--color-neon), var(--color-orange));
  box-shadow: 0 0 10px rgba(198, 255, 0, 0.5);
  z-index: 3;
  pointer-events: none;
}

/* ============ 悬浮胶囊导航 ============ */
.floating-nav {
  position: fixed;
  top: calc(var(--announce-h) + 14px);
  right: 20px;
  display: flex;
  align-items: center;
  padding: 6px;
  background: rgba(255, 255, 255, 0.78);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-glass);
  z-index: var(--nav-z);
  transition: background var(--ease), box-shadow var(--ease);
}
.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  border: 0;
  background: var(--color-orange);
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  padding: 0 18px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  box-shadow: 0 6px 16px rgba(255, 107, 0, 0.32);
  transition: transform var(--ease), background var(--ease);
}
.nav-toggle:hover {
  background: #e85e00;
}
.nav-toggle-label {
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
}
.nav-toggle-icon {
  position: relative;
  display: block;
  width: 16px;
  height: 12px;
}
.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: top var(--ease), transform var(--ease);
}
.nav-toggle-icon::before {
  top: 0;
}
.nav-toggle-icon::after {
  top: 10px;
}
.floating-nav[data-open] .nav-toggle-icon::before,
.floating-nav[data-open] .nav-toggle-icon::after {
  top: 5px;
}
.floating-nav[data-open] .nav-toggle-icon::before {
  transform: rotate(45deg);
}
.floating-nav[data-open] .nav-toggle-icon::after {
  transform: rotate(-45deg);
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-blue);
  border-radius: var(--radius-pill);
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--ease), color var(--ease), transform var(--ease);
}
.nav-link:hover {
  background: rgba(198, 255, 0, 0.35);
  color: var(--color-blue);
  transform: translateY(-1px);
}
.nav-link[aria-current="page"] {
  background: var(--color-blue);
  color: var(--color-neon);
  box-shadow: 0 4px 12px rgba(10, 31, 68, 0.28);
}

/* ============ 主内容与容器 ============ */
#main-content {
  margin-left: var(--track-w);
  padding: clamp(2.25rem, 5vw, 4.5rem) clamp(1.25rem, 4vw, 4rem) clamp(4rem, 8vw, 7rem);
  min-height: 60vh;
  scroll-margin-top: calc(var(--announce-h) + 16px);
  outline: none;
}
.page-container {
  width: 100%;
  max-width: 1320px;
  margin-left: auto;
  margin-right: auto;
}

/* ============ 页面头与文字 ============ */
.page-hero {
  position: relative;
  margin-bottom: clamp(2.5rem, 6vw, 5rem);
}
.page-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-orange);
}
.page-kicker::before {
  content: "";
  width: 26px;
  height: 3px;
  background: var(--color-neon);
  transform: skew(-30deg);
}
.page-title {
  margin-top: 10px;
  font-size: clamp(2.5rem, 6vw, 4.75rem);
  line-height: 1.1;
  letter-spacing: 0.01em;
}
.page-intro {
  margin-top: 1rem;
  max-width: 44em;
  font-size: 1.1rem;
  line-height: 1.8;
  color: rgba(26, 26, 26, 0.78);
}
.lead {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--color-blue);
}

/* ============ 区块标题 ============ */
.section-head {
  margin-bottom: 2rem;
}
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.18em;
  color: var(--color-orange);
}
.section-kicker::before {
  content: "";
  width: 22px;
  height: 3px;
  background: var(--color-neon);
  transform: skew(-30deg);
}
.section-title {
  margin: 6px 0 0;
  font-size: clamp(1.8rem, 3.6vw, 2.75rem);
  line-height: 1.18;
}
.section-title.extend {
  position: relative;
}
.section-title.extend::after {
  content: "";
  display: block;
  width: 3.2em;
  height: 4px;
  margin-top: 10px;
  background: linear-gradient(90deg, var(--color-orange), var(--color-neon));
  transform: skew(-24deg);
}

/* ============ 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 11px 22px;
  border: 2px solid transparent;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--ease), background var(--ease), border var(--ease), box-shadow var(--ease), color var(--ease);
}
.btn:hover {
  transform: translateY(-2px);
  text-decoration: none;
}
.btn:active {
  transform: translateY(0);
}
.btn-primary {
  background: var(--color-orange);
  border-color: var(--color-orange);
  color: var(--color-white);
  box-shadow: 0 8px 20px rgba(255, 107, 0, 0.28);
}
.btn-primary:hover {
  background: #e85e00;
  border-color: #e85e00;
  color: var(--color-white);
  box-shadow: 0 10px 26px rgba(255, 107, 0, 0.38);
}
.btn-dark {
  background: var(--color-blue);
  border-color: var(--color-blue);
  color: var(--color-neon);
  box-shadow: 0 8px 20px rgba(10, 31, 68, 0.24);
}
.btn-dark:hover {
  background: #102b54;
  border-color: #102b54;
  color: var(--color-neon);
}
.btn-ghost {
  background: transparent;
  border-color: var(--color-blue);
  color: var(--color-blue);
}
.btn-ghost:hover {
  background: var(--color-blue);
  color: var(--color-neon);
}

/* ============ 标签 ============ */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.5;
  white-space: nowrap;
}
.tag-live {
  background: rgba(230, 57, 70, 0.10);
  border-color: rgba(230, 57, 70, 0.28);
  color: var(--color-red);
}
.tag-hot {
  background: rgba(255, 107, 0, 0.10);
  border-color: rgba(255, 107, 0, 0.26);
  color: #d75a00;
}
.tag-new {
  background: rgba(198, 255, 0, 0.20);
  border-color: rgba(198, 255, 0, 0.50);
  color: var(--color-blue);
}
.tag-blue {
  background: rgba(10, 31, 68, 0.05);
  border-color: rgba(10, 31, 68, 0.14);
  color: var(--color-blue);
}
.live-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  animation: live-pulse 1.6s ease-in-out infinite;
}
@keyframes live-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.35; transform: scale(0.7); }
}

/* ============ 卡片 ============ */
.glass-card {
  background: rgba(255, 255, 255, 0.72);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-left: 4px solid var(--color-blue);
  border-radius: var(--radius);
  box-shadow: var(--shadow-glass);
  padding: clamp(1.25rem, 2.5vw, 2rem);
}
.glass-card.is-neon {
  border-left-color: var(--color-neon);
}
.card-title {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.25rem;
  margin-bottom: 8px;
}
.card-body {
  font-size: 15px;
  line-height: 1.75;
  color: rgba(26, 26, 26, 0.76);
}
.data-card {
  position: relative;
  overflow: hidden;
  background: var(--color-blue);
  border-radius: var(--radius);
  box-shadow: 0 10px 26px rgba(10, 31, 68, 0.20);
  padding: clamp(1.12rem, 2.2vw, 1.75rem);
  color: var(--color-bg);
}
.data-card::after {
  content: "";
  position: absolute;
  right: -24px;
  top: -24px;
  width: 84px;
  height: 84px;
  background: linear-gradient(135deg, transparent 40%, rgba(198, 255, 0, 0.13) 40%);
  border-radius: 14px;
  transform: rotate(15deg);
}
.data-card > * {
  position: relative;
  z-index: 1;
}
.data-number {
  display: block;
  font-family: var(--font-body);
  font-size: 2.6rem;
  font-weight: 900;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  color: var(--color-neon);
}
.data-label {
  display: block;
  margin-top: 4px;
  font-size: 14px;
  font-weight: 500;
  color: rgba(245, 240, 232, 0.72);
}

/* ============ 栅格 ============ */
.grid {
  display: grid;
  gap: clamp(1rem, 2.5vw, 2rem);
}
.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.grid-asym {
  grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
}

/* ============ 图片媒体 ============ */
.media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--color-blue);
  box-shadow: var(--shadow-glass);
}
.media::before {
  content: "";
  display: block;
  padding-top: 56.25%;
}
.media.is-square::before {
  padding-top: 100%;
}
.media.is-vertical::before {
  padding-top: 130%;
}
.media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(198, 255, 0, 0.22) 0 4%, transparent 4% 18%, rgba(198, 255, 0, 0.14) 18% 22%, transparent 22% 100%);
  background-size: 260% 100%;
  animation: media-scan 8s linear infinite alternate;
  z-index: 2;
  pointer-events: none;
}
@keyframes media-scan {
  from { background-position: 0% 0; }
  to { background-position: 100% 0; }
}
.media img,
.media-img {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media .placeholder {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: grid;
  place-items: center;
  color: var(--color-neon);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.28em;
}
.media-caption {
  position: absolute;
  left: 12px;
  bottom: 12px;
  z-index: 3;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-neon);
  background: rgba(10, 31, 68, 0.70);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

/* ============ 面包屑 ============ */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-bottom: clamp(2rem, 4vw, 3.5rem);
  font-size: 14px;
  font-weight: 500;
}
.breadcrumb a {
  color: var(--color-blue-light);
  text-decoration: none;
}
.breadcrumb a:hover {
  color: var(--color-blue);
}
.breadcrumb-sep {
  color: var(--color-orange);
  font-weight: 700;
}
.breadcrumb [aria-current="page"] {
  color: var(--color-blue);
  font-weight: 700;
}

/* ============ 斜切与细节 ============ */
.diag-block {
  display: inline-block;
  background: var(--color-blue);
  color: var(--color-neon);
  padding: 10px 22px;
  border-radius: 4px;
  transform: skew(-14deg);
  box-shadow: 6px 6px 0 rgba(198, 255, 0, 0.28);
}
.diag-inner {
  display: inline-block;
  transform: skew(14deg);
}

/* ============ 元数据列表 ============ */
.meta-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 15px;
}
.meta-list dt {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-blue-light);
}
.meta-list dd {
  margin: 0;
}

/* ============ 页脚 ============ */
.site-footer {
  position: relative;
  overflow: hidden;
  background: var(--color-blue);
  color: var(--color-bg);
  margin-left: var(--track-w);
  padding: clamp(2.5rem, 5vw, 4.5rem) clamp(1.25rem, 4vw, 4rem) 0;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-neon) 0%, var(--color-neon) 34%, var(--color-orange) 58%, transparent 92%);
  z-index: 1;
}
.site-footer::after {
  content: "";
  position: absolute;
  right: -90px;
  bottom: -90px;
  width: 240px;
  height: 240px;
  background: repeating-linear-gradient(-45deg, transparent 0 10px, rgba(198, 255, 0, 0.05) 10px 20px);
  border-radius: 32px;
  transform: rotate(12deg);
  pointer-events: none;
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1.3fr) minmax(0, 0.8fr);
  gap: clamp(1.75rem, 4vw, 3.5rem);
  position: relative;
  z-index: 2;
}
.footer-brand,
.footer-col {
  min-width: 0;
}
.footer-logo {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.9rem;
  line-height: 1.2;
  color: var(--color-neon);
  text-decoration: none;
  transition: color var(--ease);
}
.footer-logo:hover {
  color: var(--color-orange);
}
.footer-tag {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: rgba(245, 240, 232, 0.55);
}
.footer-truth {
  margin-top: 18px;
  max-width: 32em;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(245, 240, 232, 0.78);
}
.footer-heading {
  margin: 0 0 18px;
  padding-bottom: 10px;
  position: relative;
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-neon);
}
.footer-heading::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 26px;
  height: 3px;
  background: var(--color-orange);
  transform: skew(-20deg);
}
.footer-menu {
  display: grid;
  gap: 10px;
}
.footer-menu a {
  color: rgba(245, 240, 232, 0.76);
  font-size: 15px;
  text-decoration: none;
  transition: color var(--ease), padding-left var(--ease);
  position: relative;
}
.footer-menu a:hover {
  color: var(--color-neon);
  padding-left: 4px;
}
.footer-menu a::before {
  content: "›";
  position: absolute;
  left: -10px;
  color: var(--color-orange);
  opacity: 0;
  transition: opacity var(--ease);
}
.footer-menu a:hover::before {
  opacity: 1;
}
.footer-contact {
  display: grid;
  gap: 8px;
  font-style: normal;
  font-size: 15px;
  color: rgba(245, 240, 232, 0.76);
}
.footer-contact span {
  display: block;
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 20px;
  margin-top: clamp(2.25rem, 4vw, 3.5rem);
  padding: 22px 0 24px;
  border-top: 1px solid rgba(245, 240, 232, 0.14);
  font-size: 13px;
  color: rgba(245, 240, 232, 0.58);
  position: relative;
  z-index: 2;
}
.footer-bottom p {
  margin: 0;
}
.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-legal a {
  color: rgba(245, 240, 232, 0.60);
  font-size: 13px;
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: color var(--ease);
}
.footer-legal a:hover {
  color: var(--color-neon);
}

/* ============ 响应式 ============ */
@media (max-width: 1023.98px) {
  :root {
    --track-w: 76px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (min-width: 768px) and (max-width: 1023.98px) {
  .grid-3 {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 767.98px) {
  :root {
    --track-w: 0px;
    --announce-h: 32px;
    --mobile-track-h: 54px;
  }
  #main-content {
    margin-left: 0;
    padding: calc(var(--announce-h) + var(--mobile-track-h) + 1.25rem) 1.25rem 4rem;
    scroll-margin-top: calc(var(--announce-h) + var(--mobile-track-h) + 8px);
  }
  .announce-inner {
    margin-left: 12px;
    padding-right: 12px;
  }
  .announce-text {
    font-size: 12px;
  }
  .brand-track {
    top: var(--announce-h);
    left: 0;
    bottom: auto;
    width: 100%;
    height: var(--mobile-track-h);
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    gap: 12px;
    padding: 0 92px 0 12px;
  }
  .brand-lockup {
    flex-direction: row;
    align-items: center;
    gap: 8px;
  }
  .brand-name {
    writing-mode: horizontal-tb;
    margin-top: 0;
    font-size: 17px;
    letter-spacing: 0.08em;
  }
  .brand-tag {
    display: none;
  }
  .track-stripe {
    width: 26px;
    height: 3px;
    margin: 0;
  }
  .track-current {
    writing-mode: horizontal-tb;
    margin: 0 0 0 auto;
    padding: 5px 10px;
    font-size: 12px;
    letter-spacing: 0.12em;
  }
  .track-progress {
    left: 0;
    top: auto;
    bottom: 0;
    width: calc(var(--progress, 0) * 1%);
    height: 3px;
  }
  .floating-nav {
    top: calc(var(--announce-h) + 6px);
    right: 12px;
    padding: 0;
    background: transparent;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    border: 0;
    box-shadow: none;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .nav-menu {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    min-width: 180px;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 10px;
    background: rgba(255, 255, 255, 0.94);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(10, 31, 68, 0.10);
    border-radius: 18px;
    box-shadow: var(--shadow-pop);
  }
  .floating-nav[data-open] .nav-menu {
    display: flex;
  }
  .nav-link {
    min-height: 44px;
    padding: 12px 16px;
    font-size: 15px;
  }
  .site-footer {
    margin-left: 0;
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    justify-content: flex-start;
    flex-direction: column;
    align-items: flex-start;
  }
  .grid-2,
  .grid-3,
  .grid-asym {
    grid-template-columns: 1fr;
  }
}

/* ============ 减少动效 ============ */
@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;
  }
}