/* ============================================================
   178体育场 · 共享站点样式 /assets/site.css
   夜间赛场灯光体系：深墨绿基底 + 夜场蓝分区 + 荧光青绿锚点
   ============================================================ */

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

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

body {
  margin: 0;
  min-height: 100%;
  background-color: #071A15;
  background-image:
    radial-gradient(120% 78% at 84% -12%, rgba(11, 29, 51, 0.92) 0%, rgba(11, 29, 51, 0) 62%),
    radial-gradient(90% 60% at 8% 4%, rgba(16, 41, 35, 0.75) 0%, rgba(16, 41, 35, 0) 58%),
    linear-gradient(rgba(92, 116, 128, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(92, 116, 128, 0.07) 1px, transparent 1px);
  background-size: auto, auto, 64px 64px, 64px 64px;
  color: #F4F7F5;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6, p, figure, blockquote, ul, ol, dl { margin: 0; }
ul, ol { padding: 0; }
img, svg, video { max-width: 100%; }
a { color: inherit; }
button { font: inherit; }

::selection {
  background: #3DFFB2;
  color: #04140F;
}

:focus-visible {
  outline: 2px solid #3DFFB2;
  outline-offset: 3px;
  border-radius: 1px;
}

#main-content {
  scroll-margin-top: calc(var(--hdr-h) + 14px);
}

/* ---------- 设计令牌 ---------- */
:root {
  --hdr-h: 84px;
  --ink-900: #071A15;
  --ink-850: #0A211B;
  --night: #0B1D33;
  --grid-green: #102923;
  --white: #F4F7F5;
  --mist: #A9B8B2;
  --pale: #D7E5DF;
  --citeal: #3DFFB2;
  --amber: #FFC24B;
  --signal: #FF4D4D;
  --steel: #5C7480;
  --line: rgba(169, 184, 178, 0.18);
  --line-strong: rgba(169, 184, 178, 0.34);
  --container: 1240px;
  --font-display: "Barlow Condensed", "Oswald", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: "DIN Alternate", "Roboto Mono", "JetBrains Mono", ui-monospace, "SFMono-Regular", monospace;
}

/* ---------- 跳转链接 ---------- */
.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 140;
  display: inline-block;
  padding: 11px 20px;
  background: #3DFFB2;
  color: #04140F;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-decoration: none;
  border-radius: 2px;
  transition: top 0.2s ease;
}
.skip-link:focus { top: 14px; }

/* ============================================================
   页头
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background-color 0.32s ease, border-color 0.32s ease, backdrop-filter 0.32s ease;
}

.site-header[data-stuck] {
  background: rgba(7, 26, 21, 0.93);
  border-bottom-color: var(--line);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  backdrop-filter: saturate(140%) blur(14px);
}

.hdr-inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.4vw, 36px);
  width: 100%;
  max-width: var(--container);
  height: var(--hdr-h);
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 40px);
}

/* 品牌 */
.hdr-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  text-decoration: none;
  color: var(--white);
}

.hdr-brand__mark {
  display: inline-block;
  padding: 6px 11px;
  background: var(--citeal);
  color: #04140F;
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.01em;
  clip-path: polygon(0 0, 100% 0, 100% 66%, 84% 100%, 0 100%);
}

.hdr-brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.18;
}

.hdr-brand__name {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--white);
}

.hdr-brand__tag {
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--mist);
  text-transform: uppercase;
}

/* 导航 */
.hdr-nav {
  display: flex;
  align-items: center;
  margin-left: auto;
  margin-right: clamp(4px, 1.4vw, 18px);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(2px, 1.2vw, 20px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 10px 5px;
  color: var(--mist);
  font-size: 13.5px;
  letter-spacing: 0.06em;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 5px;
  right: 5px;
  bottom: 3px;
  height: 2px;
  background: var(--citeal);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.26s ease;
}

.nav-link:hover,
.nav-link:focus-visible { color: var(--white); }
.nav-link:hover::after { transform: scaleX(1); }

.nav-link[aria-current="page"] { color: var(--citeal); }
.nav-link[aria-current="page"]::after { transform: scaleX(1); }

.hdr-nav__cta { display: none; }

/* 操作区 */
.hdr-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

/* 移动导航按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: rgba(16, 41, 35, 0.62);
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  color: var(--white);
  font-size: 12px;
  letter-spacing: 0.14em;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.nav-toggle:hover { border-color: var(--citeal); color: var(--citeal); }

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 18px;
  height: 2px;
  background: var(--citeal);
  transition: background-color 0.2s ease;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: var(--citeal);
  transition: transform 0.26s ease, top 0.26s ease;
}
.nav-toggle__bars::before { top: -6px; }
.nav-toggle__bars::after { top: 6px; }

.site-header[data-open] .nav-toggle__bars { background: transparent; }
.site-header[data-open] .nav-toggle__bars::before { top: 0; transform: rotate(45deg); }
.site-header[data-open] .nav-toggle__bars::after { top: 0; transform: rotate(-45deg); }

/* 滚动进度 */
.hdr-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: rgba(169, 184, 178, 0.12);
  pointer-events: none;
}
.hdr-progress__bar {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--citeal), var(--amber));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.12s linear;
}

/* ============================================================
   按钮
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: 2px;
  background: none;
  color: inherit;
  font-family: var(--font-body);
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.18s ease, background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--signal {
  background: var(--citeal);
  color: #04140F;
  box-shadow: 0 0 0 1px rgba(61, 255, 178, 0.34), 0 12px 30px -14px rgba(61, 255, 178, 0.7);
}
.btn--signal:hover { background: #67FFC5; }

.btn--ghost {
  border-color: var(--line-strong);
  color: var(--white);
}
.btn--ghost:hover { border-color: var(--citeal); color: var(--citeal); }

.btn--amber { background: var(--amber); color: #1A1204; }
.btn--amber:hover { background: #FFD274; }

.btn--sm { padding: 9px 16px; font-size: 12.5px; }
.btn--block { width: 100%; }

/* ============================================================
   页脚
   ============================================================ */
.site-footer {
  position: relative;
  overflow: hidden;
  margin-top: clamp(40px, 6vw, 80px);
  background: linear-gradient(180deg, #071A15 0%, #0B1D33 58%, #071A15 100%);
  border-top: 1px solid var(--line);
}

.ftr-glow {
  position: absolute;
  left: 38%;
  right: -12%;
  bottom: -42%;
  height: 440px;
  background: radial-gradient(closest-side, rgba(61, 255, 178, 0.16), rgba(61, 255, 178, 0) 72%);
  pointer-events: none;
}

.ftr-inner {
  position: relative;
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: clamp(46px, 6.5vw, 86px) clamp(16px, 4vw, 40px) 26px;
}

.ftr-top {
  display: grid;
  grid-template-columns: minmax(250px, 1.1fr) minmax(260px, 1.15fr) minmax(250px, 1fr);
  gap: clamp(28px, 4.6vw, 64px);
  align-items: start;
}

.ftr-brand__link {
  display: inline-block;
  font-family: var(--font-display);
  font-size: clamp(26px, 3.2vw, 38px);
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--white);
  text-decoration: none;
  transition: color 0.2s ease;
}
.ftr-brand__link:hover { color: var(--citeal); }

.ftr-brand__summary {
  margin-top: 16px;
  max-width: 34ch;
  font-size: 14px;
  line-height: 1.82;
  color: var(--mist);
}

.ftr-score {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.ftr-score__num {
  font-family: var(--font-mono);
  font-size: clamp(38px, 5.4vw, 60px);
  font-weight: 700;
  line-height: 0.86;
  color: rgba(61, 255, 178, 0.16);
  -webkit-text-stroke: 1px rgba(61, 255, 178, 0.6);
}

.ftr-score__meta {
  padding-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--mist);
}

.ftr-cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(18px, 3.4vw, 38px);
}

.ftr-col__title {
  margin-bottom: 14px;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
}

.ftr-col__list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ftr-col__link {
  display: inline-block;
  font-size: 14px;
  color: var(--mist);
  text-decoration: none;
  transition: color 0.2s ease, padding-left 0.2s ease;
}
.ftr-col__link:hover { color: var(--white); padding-left: 6px; }

.ftr-contact { min-width: 0; }

.ftr-contact__row {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
}
.ftr-contact__row + .ftr-contact__row { margin-top: 13px; }

.ftr-contact__label {
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--steel);
}

.ftr-contact__value {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.55;
  color: var(--pale);
  word-break: break-all;
}

.ftr-copy {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  padding: 8px 13px;
  background: rgba(16, 41, 35, 0.6);
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  color: var(--pale);
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}
.ftr-copy:hover { border-color: var(--citeal); color: var(--citeal); }
.ftr-copy [data-copy-state] { font-family: var(--font-mono); }
.ftr-copy[data-copied] {
  border-color: var(--amber);
  color: var(--amber);
  background: rgba(255, 194, 75, 0.1);
}

.ftr-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 26px;
  margin-top: clamp(32px, 4.6vw, 54px);
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--steel);
}

.ftr-legal__copy {
  flex: 1 1 240px;
  min-width: 0;
  font-size: 12px;
  color: var(--steel);
}

.ftr-legal__links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ftr-legal__link {
  color: var(--mist);
  text-decoration: none;
  transition: color 0.2s ease;
}
.ftr-legal__link:hover { color: var(--citeal); }

.ftr-legal__icp {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--steel);
}

/* ============================================================
   通用布局与排版
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-inline: clamp(16px, 4vw, 40px);
}

.section { padding-block: clamp(48px, 7vw, 104px); }
.section--tight { padding-block: clamp(30px, 4.4vw, 62px); }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px 28px;
  margin-bottom: clamp(22px, 3.4vw, 44px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--citeal);
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: currentColor;
}

.display {
  font-family: var(--font-display);
  font-size: clamp(32px, 4.4vw, 58px);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: 0.02em;
  color: var(--white);
}

.display--xl {
  font-size: clamp(50px, 8.4vw, 122px);
  line-height: 0.94;
  letter-spacing: 0.01em;
}

.numeric {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  color: var(--citeal);
}

.lede {
  max-width: 62ch;
  font-size: clamp(15px, 1.35vw, 17px);
  line-height: 1.82;
  color: var(--pale);
}

.note {
  font-size: 12px;
  line-height: 1.72;
  letter-spacing: 0.05em;
  color: var(--mist);
}

.rule {
  height: 1px;
  border: 0;
  background: linear-gradient(90deg, rgba(61, 255, 178, 0.5), rgba(169, 184, 178, 0.12) 42%, rgba(169, 184, 178, 0));
}

.rail-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--steel);
  writing-mode: vertical-rl;
}

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

/* 网格 */
.grid { display: grid; gap: clamp(14px, 2vw, 24px); }
.grid--12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }

.span-4 { grid-column: span 4; }
.span-5 { grid-column: span 5; }
.span-6 { grid-column: span 6; }
.span-7 { grid-column: span 7; }
.span-8 { grid-column: span 8; }

/* ============================================================
   内容组件
   ============================================================ */
.panel {
  position: relative;
  padding: clamp(18px, 2.3vw, 28px);
  background: linear-gradient(158deg, rgba(16, 41, 35, 0.94), rgba(11, 29, 51, 0.72));
  border: 1px solid var(--line);
  border-radius: 3px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.panel--score {
  background: linear-gradient(158deg, rgba(16, 41, 35, 0.97), rgba(11, 29, 51, 0.86));
  border-color: rgba(61, 255, 178, 0.24);
  box-shadow: 0 30px 70px -50px rgba(61, 255, 178, 0.65);
}

.panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.panel__label {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--steel);
}

.panel__body { font-size: 14.5px; line-height: 1.8; color: var(--pale); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 4px 10px;
  background: rgba(7, 26, 21, 0.55);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mist);
}

.tag--live {
  color: #FFD9D9;
  border-color: rgba(255, 77, 77, 0.55);
  background: rgba(255, 77, 77, 0.12);
}

.tag--amber {
  color: #241703;
  border-color: transparent;
  background: var(--amber);
  font-weight: 700;
}

.dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 0 rgba(255, 77, 77, 0.7);
  animation: dot-pulse 2s ease-out infinite;
}

@keyframes dot-pulse {
  0% { box-shadow: 0 0 0 0 rgba(255, 77, 77, 0.65); }
  70% { box-shadow: 0 0 0 9px rgba(255, 77, 77, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 77, 77, 0); }
}

/* 图片容器基础规则 */
.figure-frame {
  position: relative;
  display: block;
  margin: 0;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: linear-gradient(145deg, #0B1D33 0%, #102923 56%, #071A15 100%);
  border: 1px solid var(--line);
  border-radius: 3px;
}

.figure-frame--wide { aspect-ratio: 21 / 9; }

.figure-frame__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.06);
}

.figure-frame__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 14px 16px;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--pale);
  background: linear-gradient(0deg, rgba(4, 20, 15, 0.94), rgba(4, 20, 15, 0));
}

.figure-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(202deg, rgba(61, 255, 178, 0.14), rgba(61, 255, 178, 0) 44%);
}

/* 面包屑 */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 22px;
  padding: 0;
  list-style: none;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--steel);
}

.crumbs__item { display: inline-flex; align-items: center; gap: 8px; }
.crumbs a { color: var(--mist); text-decoration: none; transition: color 0.2s ease; }
.crumbs a:hover { color: var(--citeal); }
.crumbs [aria-current="page"] { color: var(--pale); }
.crumbs__sep { color: var(--steel); opacity: 0.6; }

/* 手风琴 */
.accordion {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.accordion__item {
  background: rgba(16, 41, 35, 0.55);
  border: 1px solid var(--line);
  border-radius: 3px;
  transition: border-color 0.24s ease, background-color 0.24s ease;
}

.accordion__item[data-expanded] {
  border-color: rgba(61, 255, 178, 0.45);
  background: rgba(16, 41, 35, 0.84);
}

.accordion__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 16px 18px;
  background: none;
  border: 0;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: color 0.2s ease;
}
.accordion__trigger:hover { color: var(--citeal); }

.accordion__icon {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  color: var(--citeal);
  transition: transform 0.26s ease;
}
.accordion__icon::before,
.accordion__icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 14px;
  height: 2px;
  background: currentColor;
  transform: translate(-50%, -50%);
}
.accordion__icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  transition: opacity 0.2s ease;
}
.accordion__item[data-expanded] .accordion__icon { transform: rotate(180deg); }
.accordion__item[data-expanded] .accordion__icon::after { opacity: 0; }

.accordion__panel {
  padding: 0 18px 18px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--pale);
}
.accordion__panel[hidden] { display: none; }

/* 标签切换 */
.tabstrip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
}

.tabstrip__btn {
  padding: 9px 16px;
  background: rgba(7, 26, 21, 0.55);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--mist);
  font-family: var(--font-body);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}
.tabstrip__btn:hover { color: var(--white); border-color: rgba(61, 255, 178, 0.5); }

.tabstrip__btn[aria-selected="true"] {
  background: var(--citeal);
  border-color: var(--citeal);
  color: #04140F;
  font-weight: 700;
}

.tabpanel[hidden] { display: none; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1023px) {
  :root { --hdr-h: 66px; }

  .hdr-brand__tag { display: none; }
  .hdr-actions .btn { display: none; }
  .nav-toggle { display: inline-flex; }

  .hdr-nav {
    position: fixed;
    top: var(--hdr-h);
    right: 0;
    left: auto;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    width: min(370px, 88vw);
    height: calc(100vh - var(--hdr-h));
    height: calc(100dvh - var(--hdr-h));
    margin: 0;
    padding: 22px 22px 44px;
    overflow-y: auto;
    background: linear-gradient(180deg, rgba(11, 29, 51, 0.985), rgba(7, 26, 21, 0.995));
    border-left: 1px solid var(--line);
    box-shadow: -34px 0 70px -34px rgba(0, 0, 0, 0.85);
    transform: translateX(104%);
    visibility: hidden;
    transition: transform 0.34s cubic-bezier(0.2, 0.7, 0.3, 1), visibility 0.34s;
  }

  .hdr-nav[data-open] {
    transform: translateX(0);
    visibility: visible;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
  }

  .nav-list li + li { border-top: 1px solid rgba(169, 184, 178, 0.12); }

  .nav-link {
    display: block;
    padding: 16px 4px;
    font-size: 15px;
    letter-spacing: 0.1em;
    white-space: normal;
  }
  .nav-link::after { display: none; }
  .nav-link[aria-current="page"] {
    padding-left: 14px;
    border-left: 2px solid var(--citeal);
  }

  .hdr-nav__cta {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 26px;
  }

  .ftr-top { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .ftr-brand { grid-column: 1 / -1; }
  .ftr-contact { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .grid--12 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .span-4 { grid-column: span 3; }
  .span-5,
  .span-7,
  .span-8 { grid-column: span 6; }
}

@media (max-width: 720px) {
  .ftr-top { grid-template-columns: minmax(0, 1fr); }
  .ftr-brand__summary { max-width: none; }
  .ftr-legal { gap: 12px 18px; }
  .ftr-legal__copy { flex-basis: 100%; }
  .display--xl { letter-spacing: 0; }
}

@media (max-width: 600px) {
  body { font-size: 15px; }
  .grid--12 { grid-template-columns: minmax(0, 1fr); }
  .span-4,
  .span-5,
  .span-6,
  .span-7,
  .span-8 { grid-column: 1 / -1; }
  .hdr-brand__name { font-size: 15.5px; }
  .nav-toggle__label { display: none; }
  .nav-toggle { padding: 11px 12px; }
  .ftr-cols { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 动效降级 ---------- */
@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;
  }

  .dot { animation: none; }
  .btn:hover { transform: none; }
  .ftr-col__link:hover { padding-left: 0; }
}