/* ============================================================
   非凡赛场 · 共享样式 /assets/site.css
   夜间赛场数据指挥中心：深墨绿底 + 荧光青柠数据 + 暖橙状态
   ============================================================ */

/* ---------- 1. 设计变量 ---------- */
:root {
  --ink: #061F18;
  --deep: #0B3D2E;
  --board: #114F3B;
  --glass: #1E6B52;
  --lime: #C6FF3D;
  --lime-soft: #E9FFD0;
  --orange: #FF6B35;
  --orange-soft: #FFD8C9;
  --sage: #8FB8A3;
  --paper: #F6FFF4;

  --paper-86: rgba(246, 255, 244, .86);
  --paper-70: rgba(246, 255, 244, .70);
  --line: rgba(143, 184, 163, .24);
  --line-soft: rgba(143, 184, 163, .14);
  --line-lime: rgba(198, 255, 61, .42);
  --glass-bg: rgba(30, 107, 82, .34);
  --glass-line: rgba(198, 255, 61, .20);

  --font-display: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Heiti SC", sans-serif;
  --font-body: var(--font-display);
  --font-mono: "JetBrains Mono", "SFMono-Regular", ui-monospace, Menlo, Consolas, "Courier New", monospace;

  --container: 1240px;
  --gutter: clamp(1.05rem, 4vw, 2.75rem);
  --r-xs: 6px;
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 26px;
  --ease: cubic-bezier(.22, .72, .28, 1);
  --dur: 160ms;
}

/* ---------- 2. 重置与基础排版 ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: clamp(16px, .55vw + 14.6px, 17.5px);
  line-height: 1.75;
  color: var(--paper-86);
  background-color: var(--deep);
  background-image:
    radial-gradient(1100px 620px at 88% -12%, rgba(198, 255, 61, .12), transparent 62%),
    radial-gradient(820px 540px at -6% 16%, rgba(255, 107, 53, .07), transparent 64%),
    linear-gradient(rgba(198, 255, 61, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(198, 255, 61, .035) 1px, transparent 1px);
  background-size: auto, auto, 72px 72px, 72px 72px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 900;
  color: var(--paper);
  line-height: 1.12;
  letter-spacing: -.03em;
  margin: 0 0 .55em;
  text-wrap: balance;
}
h1 { font-size: clamp(2.1rem, 5.2vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.4rem); }
h3 { font-size: clamp(1.12rem, 1.7vw, 1.35rem); letter-spacing: -.015em; line-height: 1.3; }
h4 { font-size: 1rem; letter-spacing: 0; line-height: 1.4; }

p { margin: 0 0 1.05em; }
strong { color: var(--paper); font-weight: 700; }

a { color: var(--lime); text-underline-offset: 3px; }
a:hover { color: var(--lime-soft); }

ul, ol { margin: 0 0 1.05em; padding-left: 1.15em; }
li { margin: 0 0 .3em; }

:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 3. 布局容器 ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  position: relative;
  padding-block: clamp(2.6rem, 6vw, 5rem);
}
.section--tight { padding-block: clamp(1.8rem, 4vw, 3rem); }
.section--ink {
  background: var(--ink);
  border-block: 1px solid var(--line-soft);
}
.section--board {
  background: linear-gradient(180deg, rgba(17, 79, 59, .68), rgba(11, 61, 46, .22));
  border-block: 1px solid var(--line-soft);
}
.section--lime {
  background: var(--lime);
  color: var(--ink);
  border-block: 1px solid var(--lime);
}
.section--lime h1,
.section--lime h2,
.section--lime h3,
.section--lime h4,
.section--lime .lede,
.section--lime strong { color: var(--ink); }
.section--lime p { color: rgba(6, 31, 24, .86); }
.section--lime .eyebrow { color: var(--board); }
.section--lime .eyebrow::before { background: var(--board); }
.section--lime .btn--lime { background: var(--ink); color: var(--lime); }
.section--lime .btn--lime:hover { background: #0d2c22; }
.section--lime .btn--ghost { color: var(--board); border-color: rgba(11, 61, 46, .4); background: rgba(6, 31, 24, .06); }

.divider {
  height: 1px;
  border: 0;
  margin: clamp(1.6rem, 3vw, 2.6rem) 0;
  background: linear-gradient(90deg, var(--line-lime), rgba(198, 255, 61, 0));
}

/* ---------- 4. 基础网格 ---------- */
.grid { display: grid; gap: clamp(.9rem, 2vw, 1.6rem); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid--auto { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  padding: .72rem 1.2rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .04em;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition:
    background-color var(--dur) var(--ease),
    color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}
.btn--lime {
  background: var(--lime);
  color: var(--ink);
  box-shadow: 0 10px 30px -18px rgba(198, 255, 61, .95);
}
.btn--lime:hover {
  background: #d8ff70;
  color: var(--ink);
  transform: translateY(-1px);
  box-shadow: 0 14px 34px -16px rgba(198, 255, 61, .9);
}
.btn--ghost {
  background: rgba(198, 255, 61, .06);
  border-color: var(--line-lime);
  color: var(--lime);
}
.btn--ghost:hover {
  background: rgba(198, 255, 61, .16);
  border-color: var(--lime);
  color: var(--lime-soft);
}
.btn--orange {
  background: var(--orange);
  color: #2A0C02;
}
.btn--orange:hover { background: #ff8455; color: #2A0C02; }
.btn--sm { padding: .48rem .88rem; font-size: 13px; }

/* ---------- 6. 跳过链接 / 滚动进度 ---------- */
.skip-link {
  position: fixed;
  top: .6rem;
  left: .6rem;
  z-index: 200;
  padding: .7rem 1.1rem;
  border-radius: var(--r-sm);
  background: var(--lime);
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-180%);
  transition: transform var(--dur) var(--ease);
}
.skip-link:focus,
.skip-link:focus-visible { transform: translateY(0); color: var(--ink); }

.scroll-progress {
  position: fixed;
  inset: 0 0 auto 0;
  height: 2px;
  z-index: 120;
  background: var(--lime);
  transform: scaleX(0);
  transform-origin: 0 50%;
  pointer-events: none;
  opacity: .9;
}

/* ---------- 7. 头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(6, 31, 24, .93);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--line);
}

/* 7.1 第一层信息带 */
.topline {
  background: linear-gradient(90deg, rgba(30, 107, 82, .55), rgba(6, 31, 24, .34));
  border-bottom: 1px solid var(--line-soft);
}
.topline__inner {
  display: flex;
  align-items: center;
  gap: clamp(.7rem, 2.4vw, 2.2rem);
  min-height: 38px;
  padding-block: .22rem;
  flex-wrap: wrap;
}
.topline p { margin: 0; }
.topline__brand {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--lime-soft);
  white-space: nowrap;
}
.topline__dot { color: var(--orange); font-weight: 900; }
.topline__feed {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--sage);
  white-space: nowrap;
}
.topline__pulse {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 0 rgba(255, 107, 53, .55);
  animation: pulse-dot 2.8s var(--ease) infinite;
}
@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 107, 53, .55); }
  50% { box-shadow: 0 0 0 6px rgba(255, 107, 53, 0); }
}
.topline__meta {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .22em;
  color: rgba(143, 184, 163, .62);
  white-space: nowrap;
}

/* 7.2 第二层：品牌 + 栏目 */
.masthead { position: relative; }
.masthead__inner {
  display: flex;
  align-items: center;
  gap: clamp(.8rem, 2.4vw, 1.8rem);
  min-height: 74px;
  padding-block: .5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  flex: 0 0 auto;
  text-decoration: none;
  color: inherit;
}
.brand__mark {
  display: grid;
  gap: 3px;
  align-content: center;
  width: 36px;
  height: 36px;
  padding: 7px;
  border-radius: 9px;
  background: linear-gradient(150deg, var(--lime), #8ADC14);
  box-shadow: 0 0 24px rgba(198, 255, 61, .3);
  transition: box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.brand:hover .brand__mark {
  box-shadow: 0 0 30px rgba(198, 255, 61, .55);
  transform: translateY(-1px);
}
.brand__bar { display: block; height: 3px; border-radius: 2px; background: var(--ink); }
.brand__bar--a { width: 100%; }
.brand__bar--b { width: 62%; }
.brand__bar--c { width: 84%; }
.brand__text { display: block; }
.brand__name {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 19px;
  letter-spacing: -.02em;
  line-height: 1.1;
  color: var(--paper);
}
.brand__sub {
  display: block;
  margin-top: 2px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .2em;
  color: var(--sage);
}

/* 7.3 主导航 */
.primary-nav { margin-left: auto; }
.primary-nav__list {
  display: flex;
  align-items: center;
  gap: .1rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: navi;
}
.primary-nav__list > li {
  counter-increment: navi;
  margin: 0;
}
.nav-link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: .42rem;
  padding: .5rem .62rem;
  border: 1px solid transparent;
  border-radius: var(--r-xs);
  color: rgba(246, 255, 244, .8);
  font-size: 14.5px;
  font-weight: 500;
  letter-spacing: .02em;
  text-decoration: none;
  white-space: nowrap;
  transition:
    color var(--dur) var(--ease),
    background-color var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}
.nav-link::before {
  content: "0" counter(navi);
  font-family: var(--font-mono);
  font-size: 9.5px;
  line-height: 1;
  color: var(--glass);
  transform: translateY(-.4em);
  transition: color var(--dur) var(--ease);
}
.nav-link:hover {
  color: var(--lime);
  background: rgba(198, 255, 61, .08);
  border-color: rgba(198, 255, 61, .24);
}
.nav-link:hover::before { color: var(--lime); }
.nav-link[aria-current="page"] {
  color: var(--ink);
  background: var(--lime);
  border-color: var(--lime);
  font-weight: 700;
}
.nav-link[aria-current="page"]::before { color: rgba(6, 31, 24, .52); }

.masthead__actions {
  display: flex;
  align-items: center;
  gap: .55rem;
  flex: 0 0 auto;
}
.masthead__cta { white-space: nowrap; }

/* 7.4 移动菜单按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: .5rem;
  padding: .5rem .8rem;
  border: 1px solid var(--line-lime);
  border-radius: var(--r-xs);
  background: rgba(198, 255, 61, .07);
  color: var(--lime);
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .1em;
  cursor: pointer;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.nav-toggle:hover { background: rgba(198, 255, 61, .16); border-color: var(--lime); }
.nav-toggle__bars { display: grid; gap: 4px; width: 16px; }
.nav-toggle__bars > span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform var(--dur) var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars > span:first-child {
  transform: translateY(3px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars > span:last-child {
  transform: translateY(-3px) rotate(-45deg);
}
.nav-toggle__label { line-height: 1; }

/* ---------- 8. 页脚 ---------- */
.site-footer {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  border-top: 1px solid var(--line-lime);
  color: var(--paper-86);
}
.site-footer__glow {
  position: absolute;
  inset: auto -12% -58% 38%;
  height: 460px;
  background: radial-gradient(closest-side, rgba(198, 255, 61, .14), transparent 72%);
  pointer-events: none;
}
.site-footer__inner {
  position: relative;
  z-index: 1;
  padding-block: clamp(2.4rem, 5vw, 4rem) 1.6rem;
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1.5fr);
  gap: clamp(1.6rem, 4vw, 3.5rem);
}
.footer-brand { max-width: 38ch; }
.footer-brand__kicker {
  margin: 0 0 .8rem;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .24em;
  color: var(--lime);
}
.footer-brand__statement {
  margin: 0 0 1.3rem;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--paper-86);
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 2.5vw, 2rem);
}
.footer-col__title {
  margin: 0 0 .9rem;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--sage);
}
.footer-col__list {
  display: grid;
  gap: .55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.footer-col__list > li { margin: 0; }
.footer-link {
  display: inline-block;
  color: rgba(246, 255, 244, .82);
  font-size: 14.5px;
  text-decoration: none;
  transition: color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.footer-link:hover { color: var(--lime); transform: translateX(3px); }

.footer-contact {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 2.4vw, 2rem);
  margin-top: clamp(1.8rem, 4vw, 2.8rem);
  padding-top: clamp(1.4rem, 3vw, 2rem);
  border-top: 1px solid var(--line-soft);
}
.footer-contact__item { display: grid; gap: .35rem; min-width: 0; }
.footer-contact__label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .2em;
  color: var(--sage);
}
.footer-contact__value {
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}
.footer-contact__note {
  grid-column: 1 / -1;
  margin: .4rem 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(143, 184, 163, .9);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .6rem clamp(1rem, 3vw, 2rem);
  margin-top: clamp(1.2rem, 2.5vw, 1.8rem);
  padding-top: clamp(1.1rem, 2.4vw, 1.6rem);
  border-top: 1px solid var(--line-soft);
}
.footer-bottom__copy,
.footer-bottom__icp {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: rgba(143, 184, 163, .82);
}
.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem 1.1rem;
  margin: 0 0 0 auto;
  padding: 0;
  list-style: none;
}
.footer-legal > li { margin: 0; }
.footer-legal__link {
  font-size: 12.5px;
  letter-spacing: .06em;
  color: rgba(246, 255, 244, .7);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}
.footer-legal__link:hover { color: var(--lime); }

/* 回到顶部 */
.to-top {
  position: fixed;
  right: clamp(.9rem, 3vw, 1.8rem);
  bottom: clamp(.9rem, 3vw, 1.8rem);
  z-index: 70;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--line-lime);
  background: rgba(6, 31, 24, .88);
  color: var(--lime);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition:
    opacity var(--dur) var(--ease),
    transform var(--dur) var(--ease),
    background-color var(--dur) var(--ease),
    visibility var(--dur) linear;
}
.to-top[data-visible="true"] {
  opacity: 1;
  visibility: visible;
  transform: none;
}
.to-top:hover { background: rgba(198, 255, 61, .18); }

/* ---------- 9. 通用内容组件 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .22em;
  color: var(--lime);
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--lime);
}
.eyebrow--orange { color: var(--orange); }
.eyebrow--orange::before { background: var(--orange); }

.lede {
  max-width: 62ch;
  font-size: clamp(1.02rem, 1.4vw, 1.18rem);
  line-height: 1.8;
  color: rgba(246, 255, 244, .9);
}

.breadcrumb { margin: 0 0 1.4rem; }
.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .45rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--sage);
}
.breadcrumb__list > li {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  margin: 0;
}
.breadcrumb__list > li + li::before {
  content: "/";
  margin-right: .45rem;
  font-family: var(--font-mono);
  color: var(--glass);
}
.breadcrumb__link {
  color: rgba(246, 255, 244, .72);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}
.breadcrumb__link:hover { color: var(--lime); }
.breadcrumb__current { color: var(--paper); font-weight: 600; }

.card {
  position: relative;
  padding: clamp(1.1rem, 2.2vw, 1.7rem);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--board);
  color: var(--paper-86);
}
.card--glass {
  background: var(--glass-bg);
  border-color: var(--glass-line);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
.card--lime {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink);
}
.card--lime h2,
.card--lime h3,
.card--lime h4,
.card--lime strong,
.card--lime p { color: var(--ink); }
.card--lime .metric__value { color: var(--ink); }
.card--lime .metric__label { color: rgba(6, 31, 24, .6); }
.card--outline {
  background: transparent;
  border-style: dashed;
  border-color: var(--line-lime);
}
.card__title { margin: 0 0 .5rem; }
.card__text { margin: 0; }

.tag {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .24rem .6rem;
  border: 1px solid var(--line-lime);
  border-radius: 999px;
  background: rgba(198, 255, 61, .1);
  color: var(--lime);
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .16em;
  line-height: 1.6;
  text-transform: uppercase;
}
.tag--orange {
  border-color: rgba(255, 107, 53, .55);
  background: rgba(255, 107, 53, .14);
  color: var(--orange);
}
.tag--soft {
  border-color: rgba(233, 255, 208, .38);
  background: rgba(233, 255, 208, .14);
  color: var(--lime-soft);
}
.tag--ghost {
  border-color: var(--line);
  background: transparent;
  color: var(--sage);
}

.metric { display: grid; gap: .15rem; }
.metric__value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.8rem, 4vw, 2.9rem);
  line-height: 1.05;
  letter-spacing: -.02em;
  color: var(--lime);
}
.metric__label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .2em;
  color: var(--sage);
  text-transform: uppercase;
}

/* 图片容器基础规则：页面阶段放入 <img> / <svg> 即可 */
.media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background:
    linear-gradient(150deg, var(--board), var(--deep) 60%, var(--ink));
  aspect-ratio: 16 / 9;
}
.media > img,
.media > svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media--square { aspect-ratio: 1 / 1; }
.media--portrait { aspect-ratio: 4 / 5; }
.media--wide { aspect-ratio: 21 / 9; }
.media__caption {
  position: absolute;
  inset: auto 0 0 0;
  padding: .7rem .9rem;
  background: linear-gradient(transparent, rgba(6, 31, 24, .92));
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
}

/* ---------- 10. 滚动显现 ---------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity .55s var(--ease) var(--delay, 0s),
    transform .55s var(--ease) var(--delay, 0s);
}
.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 11. 响应式 ---------- */
@media (max-width: 1080px) {
  .topline__meta { display: none; }
}

@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 960px) {
  .nav-toggle { display: inline-flex; }
  .masthead__cta { display: none; }
  .primary-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    margin-left: 0;
    display: none;
    padding: .5rem var(--gutter) 1.1rem;
    background: rgba(6, 31, 24, .985);
    border-block: 1px solid var(--line-lime);
    box-shadow: 0 26px 50px -30px rgba(0, 0, 0, .92);
  }
  .primary-nav[data-open="true"] { display: block; }
  .primary-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .nav-link {
    width: 100%;
    justify-content: flex-start;
    padding: .92rem .4rem;
    border: 0;
    border-bottom: 1px solid var(--line-soft);
    border-radius: 0;
    font-size: 16px;
  }
  .nav-link::before { font-size: 10px; }
  .nav-link[aria-current="page"] {
    padding-inline: .65rem;
    border-radius: var(--r-xs);
    border-bottom-color: rgba(198, 255, 61, .45);
    background: rgba(198, 255, 61, .14);
    color: var(--lime);
  }
  .nav-link[aria-current="page"]::before { color: var(--lime); }

  .footer-top { grid-template-columns: 1fr; }
  .footer-brand { max-width: none; }
}

@media (max-width: 720px) {
  .footer-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.3rem 1rem; }
  .footer-contact { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .topline__inner { gap: .35rem .9rem; }
  .topline__brand { font-size: 11px; letter-spacing: .1em; }
  .topline__feed { font-size: 10px; letter-spacing: .06em; }

  .masthead__inner { min-height: 66px; }
  .brand__mark { width: 32px; height: 32px; padding: 6px; }
  .brand__name { font-size: 17px; }
  .brand__sub { font-size: 8px; letter-spacing: .16em; }

  .grid--2,
  .grid--3,
  .grid--4,
  .grid--auto { grid-template-columns: 1fr; }

  .footer-nav { grid-template-columns: 1fr; }
  .footer-contact { grid-template-columns: 1fr; }
  .footer-legal { margin-left: 0; }
  .footer-bottom { gap: .5rem 1rem; }
  .to-top { width: 40px; height: 40px; }
}

/* ---------- 12. 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .js [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .to-top { transition: none; }
}