/* ==========================================================================
   爱游戏赛场 · 共享站点样式  /assets/site.css
   夜场球场灯光下的数据叙事 —— 深墨绿基底 / 荧光青柠高亮 / 锐角细线网格
   ========================================================================== */

/* ---------- 1. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body, h1, h2, h3, h4, h5, p, ul, ol, figure, blockquote, dl, dd {
  margin: 0;
}

ul, ol { padding: 0; list-style: none; }

a { color: inherit; }

button { font: inherit; color: inherit; }

img, svg, video { max-width: 100%; }

/* ---------- 2. Design tokens ---------- */
:root {
  /* 珠宝色分区 */
  --ink:        #071A14;   /* 赛场深墨绿 */
  --ink-deep:   #05130F;
  --ink-2:      #0E2B24;   /* 看台深蓝绿 */
  --ink-3:      #0A231C;
  --cream:      #F4F7EC;   /* 浅米白 */
  --cream-dim:  #D6E4DA;
  --lime:       #C8FF3D;   /* 荧光青柠 */
  --lime-soft:  #D9FF6E;
  --ember:      #FF5A36;   /* 暖橙红 */
  --wine:       #5B1E2A;   /* 酒红护墙 */
  --indigo:     #241A3B;   /* 靛紫夜幕 */
  --sage:       #7E9A8C;   /* 灰绿线 */
  --gold:       #D9B45B;   /* 深金记分 */

  /* 线条与描边 */
  --line:       rgba(126, 154, 140, .30);
  --line-soft:  rgba(126, 154, 140, .16);
  --line-lime:  rgba(200, 255, 61, .45);

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

  /* 版面 */
  --wrap:   1280px;
  --gutter: clamp(18px, 5vw, 64px);
  --skew:   -6deg;
  --ease:   cubic-bezier(.22, .61, .36, 1);
  --header-h: 84px;
}

/* ---------- 3. 中文排版基底 ---------- */
html, body { background-color: var(--ink); }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  font-weight: 400;
  color: var(--cream);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

@media (min-width: 1200px) {
  body { font-size: 17px; }
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -.01em;
  text-wrap: balance;
}

p { text-wrap: pretty; word-break: break-word; }

::selection { background: var(--lime); color: var(--ink); }

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

/* ---------- 4. 布局工具 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.grid {
  display: grid;
  gap: clamp(16px, 2vw, 28px);
}

.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

@media (max-width: 820px) {
  .grid--2,
  .grid--3 { grid-template-columns: minmax(0, 1fr); }
}

.prose {
  max-width: 68ch;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--cream-dim);
}

.prose > * + * { margin-top: 1.1em; }
.prose h2 { font-size: clamp(26px, 3vw, 36px); color: var(--cream); }
.prose h3 { font-size: clamp(20px, 2.2vw, 26px); color: var(--cream); }
.prose a { color: var(--lime); text-underline-offset: 4px; }

/* ---------- 5. Skip link ---------- */
.skip-link {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 200;
  display: block;
  padding: 12px 24px;
  background: var(--lime);
  color: var(--ink);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .04em;
  text-decoration: none;
  transform: translateY(-130%);
  transition: transform .2s var(--ease);
}

.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
  outline: 3px solid var(--cream);
  outline-offset: -3px;
}

/* ---------- 6. 通用按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border: 1px solid transparent;
  background: none;
  color: var(--cream);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: .04em;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .2s var(--ease),
              color .2s var(--ease),
              border-color .2s var(--ease),
              transform .2s var(--ease);
}

.btn--lime {
  background: var(--lime);
  color: var(--ink);
  clip-path: polygon(11px 0, 100% 0, calc(100% - 11px) 100%, 0 100%);
}

.btn--lime:hover { background: var(--lime-soft); }
.btn--lime:active { transform: translateY(1px); }

.btn--line {
  border-color: var(--line-lime);
  background: transparent;
  color: var(--cream);
}

.btn--line:hover {
  background: rgba(200, 255, 61, .14);
  border-color: var(--lime);
  color: var(--lime);
}

.btn--ember {
  background: var(--ember);
  color: #170A06;
}

.btn--ember:hover { background: #FF7558; }

.btn:focus-visible {
  outline: 2px solid var(--cream);
  outline-offset: -4px;
}

/* ---------- 7. 标签 / 眉标 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--lime);
}

.eyebrow::before {
  content: "";
  width: 16px;
  height: 2px;
  background: currentColor;
  transform: skewX(-18deg);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  line-height: 1.6;
}

.tag--lime  { background: var(--lime);  color: var(--ink); }
.tag--ember { background: var(--ember); color: #170A06; }
.tag--line  {
  border: 1px solid var(--line-lime);
  color: var(--lime);
  background: transparent;
}

/* ---------- 8. 面板 ---------- */
.panel {
  position: relative;
  padding: clamp(18px, 2.6vw, 32px);
  background: var(--ink-2);
  border: 1px solid var(--line);
}

.panel--lime {
  background: var(--lime);
  color: var(--ink);
  border-color: transparent;
}

.panel--wine {
  background: var(--wine);
  border-color: rgba(244, 247, 236, .18);
}

/* ---------- 9. 宽幅数据条带 ---------- */
.data-band {
  display: flex;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  background: var(--ink-2);
  border-block: 1px solid var(--line);
  scrollbar-width: thin;
  scrollbar-color: var(--lime) transparent;
}

.data-band::-webkit-scrollbar { height: 6px; }
.data-band::-webkit-scrollbar-track { background: rgba(126, 154, 140, .14); }
.data-band::-webkit-scrollbar-thumb { background: var(--lime); }

.data-band__item {
  flex: 1 0 auto;
  min-width: 170px;
  padding: clamp(14px, 2vw, 22px) clamp(16px, 2.4vw, 28px);
  border-right: 1px solid var(--line-soft);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.data-band__item:last-child { border-right: 0; }

.data-band__value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(28px, 3.6vw, 46px);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--lime);
}

.data-band__value--ember { color: var(--ember); }
.data-band__value--cream { color: var(--cream); }

.data-band__label {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--sage);
}

/* ---------- 10. 图片容器基础规则 ---------- */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  isolation: isolate;
  background: var(--ink-2);
  border: 1px solid var(--line);
}

.media > img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border: 0;
}

.media--band   { aspect-ratio: 16 / 7; }
.media--wide   { aspect-ratio: 21 / 9; }
.media--tall   { aspect-ratio: 4 / 5; }
.media--square { aspect-ratio: 1 / 1; }

.media--slant {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 34px), 0 100%);
}

.media__lines {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: repeating-linear-gradient(
    90deg,
    rgba(200, 255, 61, .10) 0 1px,
    transparent 1px 56px
  );
  opacity: .5;
}

.media__overlay {
  position: absolute;
  inset: auto 0 0 0;
  z-index: 2;
  padding: clamp(14px, 2vw, 24px);
  background: linear-gradient(
    180deg,
    rgba(7, 26, 20, 0) 0%,
    rgba(7, 26, 20, .86) 100%
  );
  font-size: 13px;
  line-height: 1.6;
  color: var(--cream-dim);
}

.media__fallback {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  min-height: 120px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--sage);
  background: repeating-linear-gradient(
    -58deg,
    rgba(126, 154, 140, .14) 0 1px,
    transparent 1px 14px
  );
}

/* ---------- 11. 面包屑 ---------- */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .05em;
  color: var(--sage);
}

.crumbs a {
  color: var(--sage);
  text-decoration: none;
  transition: color .2s var(--ease);
}

.crumbs a:hover { color: var(--lime); }

.crumbs__sep { opacity: .55; }

.crumbs [aria-current="page"] { color: var(--cream); }

/* ==========================================================================
   12. 页头
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  isolation: isolate;
  background: var(--ink-3);
  border-bottom: 1px solid var(--line);
  color: var(--cream);
}

/* 滚动进度细线 */
.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  z-index: 2;
  height: 2px;
  width: calc(var(--scroll, 0) * 100%);
  background: linear-gradient(90deg, var(--lime) 0%, var(--gold) 100%);
  pointer-events: none;
  transition: width .12s linear;
}

/* ----- 12.1 上层品牌说明条 ----- */
.header-utility {
  background: var(--indigo);
  border-bottom: 1px solid rgba(200, 255, 61, .16);
}

.header-utility__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 40px;
}

.header-utility__cue {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  font-size: 12.5px;
  letter-spacing: .04em;
  color: #C7D8CD;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.header-utility__cue::before {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  background: var(--lime);
  transform: skewX(-18deg);
}

.header-utility__side {
  display: flex;
  align-items: center;
  gap: 20px;
  flex: none;
}

.header-utility__phone {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--lime);
}

.header-utility__link {
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--cream);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--line-lime);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.header-utility__link:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

/* ----- 12.2 下层主栏 ----- */
.header-main { position: relative; }

.header-main::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    -58deg,
    rgba(200, 255, 61, .055) 0 1px,
    transparent 1px 22px
  );
  opacity: .75;
}

.header-main__inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 32px);
  min-height: var(--header-h);
}

/* 品牌 */
.brand {
  display: flex;
  align-items: center;
  gap: 13px;
  flex: none;
  text-decoration: none;
  color: var(--cream);
}

.brand__mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  flex: none;
  background: var(--lime);
  clip-path: polygon(0 0, 100% 0, 100% 68%, 68% 100%, 0 100%);
  transition: background-color .2s var(--ease);
}

.brand__mark::before {
  content: "";
  width: 17px;
  height: 17px;
  border: 2px solid var(--ink);
  border-radius: 50%;
}

.brand__mark::after {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 50%;
  width: 2px;
  background: var(--ink);
  transform: translateX(-50%);
}

.brand:hover .brand__mark { background: var(--gold); }

.brand__text {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.brand__name {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 900;
  letter-spacing: .03em;
  line-height: 1.2;
  transform: skewX(-6deg);
  transform-origin: left center;
}

.brand__line {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  line-height: 1.3;
  color: var(--sage);
}

/* 主导航 */
.nav { margin-left: auto; }

.nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav__item { display: flex; }

.nav__link {
  position: relative;
  display: block;
  padding: 11px 15px;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--cream-dim);
  text-decoration: none;
  transition: color .2s var(--ease), background-color .2s var(--ease);
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 15px;
  right: 15px;
  bottom: 5px;
  height: 2px;
  background: var(--lime);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .22s var(--ease);
}

.nav__link:hover {
  color: var(--cream);
  background: rgba(200, 255, 61, .08);
}

.nav__link:hover::after { transform: scaleX(1); }

.nav__link[aria-current="page"] {
  color: var(--ink);
  background: var(--lime);
  font-weight: 800;
  clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}

.nav__link[aria-current="page"]::after { display: none; }

.nav__link[aria-current="page"]:focus-visible {
  outline: 2px solid var(--cream);
  outline-offset: -3px;
}

/* 页头 CTA */
.header-main__cta {
  flex: none;
  margin-left: 6px;
  padding: 12px 20px;
  font-size: 14px;
}

/* 汉堡按钮 */
.nav-toggle {
  display: none;
  place-items: center;
  width: 50px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--line-lime);
  color: var(--cream);
  cursor: pointer;
  transition: background-color .2s var(--ease);
}

.nav-toggle:hover { background: rgba(200, 255, 61, .12); }

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  transition: background-color .2s var(--ease);
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background: currentColor;
  transition: transform .22s var(--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 { transform: translateY(6px) rotate(45deg); }
.site-header[data-open] .nav-toggle__bars::after  { transform: translateY(-6px) rotate(-45deg); }

/* ----- 12.3 桌面端右侧赛事切换器 ----- */
.league-rail {
  position: fixed;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 70;
  width: 76px;
  display: none;
  flex-direction: column;
  align-items: stretch;
  background: rgba(36, 26, 59, .94);
  border: 1px solid rgba(200, 255, 61, .22);
  border-right: 0;
  box-shadow: -10px 0 30px rgba(0, 0, 0, .32);
}

@media (min-width: 1200px) {
  .league-rail { display: flex; }
}

.league-rail__label {
  margin: 0;
  padding: 8px 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .22em;
  color: var(--sage);
  background: rgba(7, 26, 20, .62);
  border-bottom: 1px solid rgba(200, 255, 61, .18);
}

.league-rail__group {
  display: flex;
  flex-direction: column;
}

.league-rail__btn {
  appearance: none;
  background: transparent;
  border: 0;
  border-bottom: 1px solid rgba(126, 154, 140, .18);
  padding: 12px 0;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--cream-dim);
  cursor: pointer;
  transition: background-color .2s var(--ease), color .2s var(--ease);
}

.league-rail__btn:last-child { border-bottom: 0; }

.league-rail__btn:hover {
  background: rgba(200, 255, 61, .14);
  color: var(--cream);
}

.league-rail__btn[aria-pressed="true"] {
  background: var(--lime);
  color: var(--ink);
}

.league-rail__btn[aria-pressed="true"]:focus-visible {
  outline: 2px solid var(--cream);
  outline-offset: -3px;
}

/* ==========================================================================
   13. 页脚
   ========================================================================== */
.site-footer {
  position: relative;
  background: var(--ink-2);
  color: var(--cream);
  border-top: 1px solid var(--line);
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    -62deg,
    rgba(200, 255, 61, .05) 0 1px,
    transparent 1px 90px
  );
  opacity: .65;
}

/* ----- 13.1 品牌抬头 ----- */
.footer-head {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  align-items: end;
  gap: clamp(20px, 4vw, 56px);
  padding-block: clamp(44px, 6vw, 80px) clamp(28px, 4vw, 48px);
  border-bottom: 1px solid var(--line);
}

.footer-head__mark {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(40px, 6.4vw, 88px);
  line-height: .98;
  letter-spacing: -.02em;
  color: var(--cream);
  transform: skewX(-6deg);
  transform-origin: left bottom;
}

.footer-head__accent { color: var(--lime); }

.footer-head__aside {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-bottom: 6px;
}

.footer-head__summary {
  max-width: 38ch;
  font-size: clamp(15px, 1.4vw, 18px);
  line-height: 1.7;
  color: var(--cream-dim);
}

.footer-head__stamp {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--sage);
}

/* ----- 13.2 信息网格 ----- */
.footer-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr)) minmax(0, 1.35fr);
  gap: clamp(24px, 4vw, 64px);
  padding-block: clamp(32px, 4.5vw, 60px);
}

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

.footer-nav__title {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--sage);
}

.footer-nav__title::before {
  content: "";
  width: 14px;
  height: 2px;
  background: var(--lime);
  transform: skewX(-18deg);
}

.footer-nav__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.footer-nav__item { display: block; }

.footer-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 0;
  font-size: 14.5px;
  color: var(--cream-dim);
  text-decoration: none;
  transition: color .2s var(--ease);
}

.footer-nav__link::before {
  content: "";
  width: 0;
  height: 1px;
  background: var(--lime);
  transition: width .22s var(--ease);
}

.footer-nav__link:hover { color: var(--lime); }
.footer-nav__link:hover::before { width: 14px; }

/* 联系块 */
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}

.footer-contact__list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-contact__row {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.footer-contact__key {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .2em;
  color: var(--sage);
}

.footer-contact__val {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--cream);
  word-break: break-word;
}

.footer-contact__val--mono {
  font-family: var(--font-mono);
  letter-spacing: .02em;
}

.footer-contact__note {
  max-width: 36ch;
  font-size: 13px;
  line-height: 1.7;
  color: var(--sage);
}

.footer-contact__cta {
  align-self: flex-start;
  padding: 11px 20px;
  font-size: 13.5px;
}

/* ----- 13.3 底部备案条 ----- */
.footer-base {
  position: relative;
  background: var(--ink);
  border-top: 1px solid var(--line);
}

.footer-base__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 28px;
  padding-block: 18px;
  font-size: 12.5px;
  color: var(--sage);
}

.footer-base__icp {
  font-family: var(--font-mono);
  letter-spacing: .06em;
  color: var(--sage);
}

.footer-base__copy { color: var(--sage); }

/* ==========================================================================
   14. 滚动显现协议
   ========================================================================== */
[data-js] [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .55s var(--ease), transform .55s var(--ease);
}

[data-js] [data-reveal][data-revealed] {
  opacity: 1;
  transform: none;
}

/* ==========================================================================
   15. 响应式
   ========================================================================== */
@media (max-width: 1100px) {
  .brand__name { font-size: 18px; }
  .nav__link { padding: 11px 12px; font-size: 14px; }
  .header-main__cta { padding: 11px 16px; font-size: 13.5px; }
}

@media (max-width: 1024px) {
  .nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    z-index: 3;
    margin: 0;
    background: var(--ink-2);
    border-bottom: 1px solid var(--line-lime);
    box-shadow: 0 24px 44px rgba(0, 0, 0, .48);
    max-height: 0;
    overflow: hidden;
    transition: max-height .28s var(--ease);
  }

  .site-header[data-open] .nav {
    max-height: min(76vh, 560px);
    overflow-y: auto;
  }

  .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 6px var(--gutter) 18px;
  }

  .nav__item { display: block; }

  .nav__link {
    padding: 15px 10px;
    font-size: 16px;
    border-bottom: 1px solid var(--line-soft);
  }

  .nav__link::after { display: none; }

  .nav__link[aria-current="page"] {
    clip-path: none;
    padding-inline: 14px;
  }

  .header-main__cta { display: none; }

  .nav-toggle { display: grid; margin-left: auto; }

  .brand__name { font-size: 17px; }
  .brand__mark { width: 42px; height: 42px; }
}

@media (max-width: 900px) {
  .footer-head { grid-template-columns: minmax(0, 1fr); }
  .footer-head__mark { font-size: clamp(34px, 9vw, 60px); }
  .footer-head__aside { padding-bottom: 0; }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-contact { grid-column: 1 / -1; }
}

@media (max-width: 860px) {
  .header-utility__cue {
    font-size: 11.5px;
    letter-spacing: 0;
  }
  .header-utility__phone { display: none; }
}

@media (max-width: 600px) {
  .header-utility__inner {
    min-height: 36px;
    gap: 12px;
    padding-block: 7px;
  }

  .header-utility__cue {
    white-space: normal;
    overflow: visible;
    text-overflow: clip;
    line-height: 1.5;
  }

  .header-utility__link { font-size: 12px; }

  .footer-grid { grid-template-columns: minmax(0, 1fr); gap: 32px; }

  .footer-base__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .brand__mark { width: 38px; height: 38px; }
  .brand__name { font-size: 16px; }
  .brand__line { font-size: 9.5px; letter-spacing: .12em; }
  .nav-toggle { width: 46px; height: 42px; }
}

/* ==========================================================================
   16. 动效降级
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }

  [data-js] [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }

  .site-header::after { transition: none; }
}