/* ==========================================================================
   博奥赛场 · 共享样式表 /assets/site.css
   外框：顶边品牌条 + 左侧导览轨道，导航即页面边框
   ========================================================================== */

:root {
  color-scheme: dark;

  /* 色板 */
  --c-void:      #0D1216;
  --c-deep:      #0A1F2B;
  --c-plate:     #123C55;
  --c-main:      #1C6E9A;
  --c-mist:      #7FC0DC;
  --c-paper:     #F1F7FA;
  --c-lava:      #E8581C;
  --c-lava-soft: #FF9A5C;
  --c-graphite:  #1A232A;
  --c-signal:    #3FB98C;

  --line:      rgba(28, 110, 154, 0.55);
  --line-soft: rgba(127, 192, 220, 0.22);

  /* 字体 */
  --font-display: 'Barlow Condensed', 'Oswald', 'Noto Sans SC', 'Source Han Sans SC', system-ui, sans-serif;
  --font-body: 'Noto Sans SC', 'Source Han Sans SC', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: 'JetBrains Mono', 'IBM Plex Mono', ui-monospace, 'SFMono-Regular', Menlo, Consolas, monospace;

  /* 外框尺寸 */
  --rail-w: 264px;
  --topbar-h: 58px;
  --leaguerail-h: 66px;

  /* 节奏 */
  --pad-x: clamp(1rem, 3.4vw, 3.5rem);
  --content-max: 1240px;
  --dur: 240ms;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

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

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

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

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

a { color: inherit; text-decoration: none; }

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

h1, h2, h3 { text-wrap: balance; }
p { text-wrap: pretty; }

/* ------------------------------------------------------------ 中文排版 */
body {
  min-height: 100vh;
  padding-left: var(--rail-w);
  padding-top: calc(var(--topbar-h) + var(--leaguerail-h));
  background: var(--c-void);
  color: var(--c-paper);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

p, li, dd { overflow-wrap: anywhere; }

/* --------------------------------------------------------- 焦点与跳转 */
:focus-visible {
  outline: 2px solid var(--c-lava);
  outline-offset: 2px;
  border-radius: 1px;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: calc(var(--rail-w) + 12px);
  z-index: 200;
  padding: 0.62rem 1.15rem;
  background: var(--c-lava);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  transform: translateY(-180%);
  transition: transform var(--dur) var(--ease);
}

.skip-link:focus { transform: translateY(0); }

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ==========================================================================
   页头外框
   ========================================================================== */

.site-header { position: relative; z-index: 90; }

/* --- 顶边品牌条 -------------------------------------------------------- */
.brandbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.9rem;
  padding-inline: clamp(0.85rem, 2vw, 1.5rem);
  background: linear-gradient(90deg, var(--c-deep) 0%, var(--c-void) 58%, var(--c-deep) 100%);
  border-bottom: 1px solid var(--line);
}

.brandbar__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.72rem;
  padding: 0.3rem 0.25rem;
  min-height: 44px;
  transition: opacity var(--dur) var(--ease);
}

.brandbar__brand:hover { opacity: 0.86; }

.brandbar__glyph {
  flex: none;
  width: 20px;
  height: 20px;
  background: linear-gradient(140deg, var(--c-mist) 0%, var(--c-main) 52%, var(--c-lava) 100%);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.brandbar__text { display: flex; flex-direction: column; line-height: 1.15; }

.brandbar__name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--c-paper);
}

.brandbar__sub {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--c-mist);
  opacity: 0.78;
}

.brandbar__side {
  display: flex;
  align-items: center;
  gap: clamp(0.5rem, 1.4vw, 1rem);
}

.seasonchip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.3rem 0.62rem;
  border: 1px solid var(--line);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--c-mist);
  white-space: nowrap;
}

.seasonchip__dot {
  width: 6px;
  height: 6px;
  flex: none;
  background: var(--c-signal);
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(63, 185, 140, 0.18);
}

.ghostlink {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 0.8rem;
  border: 1px solid var(--line);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--c-paper);
  transition: background var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              color var(--dur) var(--ease);
}

.ghostlink:hover {
  background: var(--c-plate);
  border-color: var(--c-mist);
  color: #fff;
}

.navtoggle {
  display: none;
  align-items: center;
  gap: 0.5rem;
  min-height: 44px;
  padding: 0 0.72rem;
  border: 1px solid var(--line);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--c-paper);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.navtoggle:hover { background: var(--c-plate); border-color: var(--c-mist); }

.navtoggle__bars {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  width: 16px;
}

.navtoggle__bars i {
  display: block;
  height: 1.5px;
  background: var(--c-mist);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.navtoggle[aria-expanded="true"] .navtoggle__bars i:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.navtoggle[aria-expanded="true"] .navtoggle__bars i:nth-child(2) { opacity: 0; }
.navtoggle[aria-expanded="true"] .navtoggle__bars i:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

/* --- 滚动进度 ---------------------------------------------------------- */
.progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: rgba(28, 110, 154, 0.28);
  overflow: hidden;
  pointer-events: none;
}

.progress__fill {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--c-lava) 0%, var(--c-lava-soft) 60%, var(--c-mist) 100%);
  transform: scaleX(0);
  transform-origin: left center;
  will-change: transform;
}

/* --- 联赛滑动标签带 ---------------------------------------------------- */
.leaguerail {
  position: fixed;
  top: var(--topbar-h);
  left: 0;
  z-index: 95;
  width: var(--rail-w);
  height: var(--leaguerail-h);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.7rem clamp(0.9rem, 1.6vw, 1.25rem);
  background: linear-gradient(180deg, var(--c-deep) 0%, #081b26 100%);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.leaguerail__caption {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--c-mist);
  opacity: 0.72;
}

.leaguerail__track {
  display: flex;
  gap: 0.4rem;
  overflow-x: auto;
  scrollbar-width: none;
  padding-bottom: 2px;
}

.leaguerail__track::-webkit-scrollbar { display: none; }

.leaguetag {
  flex: none;
  min-height: 30px;
  padding: 0.28rem 0.62rem;
  border: 1px solid var(--line-soft);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--c-mist);
  transition: background var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              color var(--dur) var(--ease);
}

.leaguetag:hover { border-color: var(--c-mist); color: var(--c-paper); }

.leaguetag.is-active {
  background: var(--c-lava);
  border-color: var(--c-lava);
  color: #fff;
}

/* --- 左侧导览轨道 ------------------------------------------------------ */
.sitenav {
  position: fixed;
  top: calc(var(--topbar-h) + var(--leaguerail-h));
  left: 0;
  bottom: 0;
  z-index: 95;
  width: var(--rail-w);
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  padding: 0.9rem 0 1.5rem;
  background: linear-gradient(180deg, #08202e 0%, var(--c-deep) 42%, var(--c-void) 100%);
  border-right: 1px solid var(--line);
  overflow-y: auto;
  overscroll-behavior: contain;
}

.sitenav__list { display: flex; flex-direction: column; }

.sitenav__item + .sitenav__item { border-top: 1px solid rgba(127, 192, 220, 0.1); }

.navlink {
  display: grid;
  grid-template-columns: 2.2rem 1fr;
  align-items: center;
  gap: 0.15rem;
  min-height: 46px;
  padding: 0.7rem clamp(0.9rem, 1.6vw, 1.25rem);
  border-left: 2px solid transparent;
  color: var(--c-paper);
  transition: background var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              color var(--dur) var(--ease);
}

.navlink__idx {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--c-mist);
  opacity: 0.68;
}

.navlink__label {
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.navlink:hover {
  background: rgba(18, 60, 85, 0.62);
  border-left-color: var(--c-mist);
}

.navlink:focus-visible { outline-offset: -3px; }

.navlink[aria-current="page"] {
  background: linear-gradient(90deg, rgba(232, 88, 28, 0.16) 0%, rgba(232, 88, 28, 0) 82%);
  border-left-color: var(--c-lava);
  color: #fff;
}

.navlink[aria-current="page"] .navlink__idx { color: var(--c-lava-soft); opacity: 1; }
.navlink[aria-current="page"] .navlink__label { font-weight: 600; }

.sitenav__foot {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1rem clamp(0.9rem, 1.6vw, 1.25rem) 0;
  border-top: 1px solid var(--line-soft);
}

.sitenav__caption {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--c-mist);
  opacity: 0.78;
}

.contactline {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: rgba(241, 247, 250, 0.84);
  transition: color var(--dur) var(--ease);
  padding: 0.15rem 0;
}

.contactline:hover { color: var(--c-lava-soft); }

.navscrim {
  position: fixed;
  inset: 0;
  z-index: 92;
  background: rgba(6, 14, 19, 0.74);
}

.navscrim[hidden] { display: none; }

/* ==========================================================================
   页脚
   ========================================================================== */

.site-footer {
  position: relative;
  margin-top: clamp(2.5rem, 6vw, 6rem);
  padding-top: clamp(2rem, 4vw, 3.2rem);
  background: linear-gradient(180deg, #081f2c 0%, var(--c-deep) 46%, #061219 100%);
  border-top: 1px solid var(--line);
}

.footer__frame {
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

.footer__brand {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.7rem 0.9rem;
  padding-bottom: 1.15rem;
  border-bottom: 1px solid var(--line);
}

.footer__glyph {
  width: 14px;
  height: 14px;
  flex: none;
  background: linear-gradient(140deg, var(--c-mist) 0%, var(--c-main) 50%, var(--c-lava) 100%);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.footer__mark {
  font-family: var(--font-display);
  font-size: 1.32rem;
  font-weight: 300;
  letter-spacing: 0.2em;
  color: var(--c-paper);
}

.footer__sign {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--c-mist);
  opacity: 0.82;
}

.footer__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-bottom: 1px solid var(--line);
}

.footercol {
  padding: clamp(1.2rem, 2.6vw, 2rem) clamp(0.9rem, 2vw, 1.6rem) clamp(1.2rem, 2.6vw, 2rem) 0;
}

.footercol + .footercol {
  padding-left: clamp(0.9rem, 2vw, 1.6rem);
  border-left: 1px solid var(--line-soft);
}

.footercol__title {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--c-lava-soft);
  margin-bottom: 0.9rem;
}

.footercol__list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footercol__list li {
  font-size: 0.82rem;
  line-height: 1.65;
  color: rgba(241, 247, 250, 0.72);
}

.footercol__list a {
  color: rgba(241, 247, 250, 0.84);
  transition: color var(--dur) var(--ease);
}

.footercol__list a:hover { color: var(--c-lava-soft); }

.footercol__tag {
  display: inline-block;
  min-width: 2.6rem;
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--c-mist);
  opacity: 0.72;
}

.footercol__note {
  font-size: 0.82rem;
  line-height: 1.75;
  color: rgba(241, 247, 250, 0.7);
  margin-bottom: 0.95rem;
}

.footerlink {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--line);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--c-mist);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.footerlink:hover { color: var(--c-lava-soft); border-color: var(--c-lava-soft); }

.footer__base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.4rem;
  padding: 1.1rem 0 1.7rem;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: rgba(127, 192, 220, 0.75);
}

.footer__icp { font-family: var(--font-mono); }

/* ==========================================================================
   通用容器与排版
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

.section { padding-block: clamp(2.6rem, 6.5vw, 6rem); }
.section--tight { padding-block: clamp(1.6rem, 3.5vw, 3rem); }

.section--paper {
  background: var(--c-paper);
  color: #10222c;
}

.section--plate {
  background: linear-gradient(160deg, var(--c-plate) 0%, var(--c-deep) 100%);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.24em;
  color: var(--c-lava-soft);
}

.eyebrow::before {
  content: '';
  width: 26px;
  height: 1px;
  flex: none;
  background: var(--c-lava);
}

.display-title {
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(2.6rem, 6vw, 5.2rem);
  line-height: 1.04;
  letter-spacing: 0.01em;
  color: var(--c-paper);
}

.section-title {
  font-family: var(--font-display);
  font-weight: 250;
  font-size: clamp(1.7rem, 3.6vw, 3rem);
  line-height: 1.12;
  letter-spacing: 0.01em;
  margin-bottom: 0.8rem;
}

.lede {
  max-width: 62ch;
  font-size: clamp(1rem, 1.1vw, 1.08rem);
  line-height: 1.85;
  color: rgba(241, 247, 250, 0.78);
}

.section--paper .lede { color: rgba(16, 34, 44, 0.78); }
.section--paper .section-title,
.section--paper .display-title { color: #0A1F2B; }

.rule {
  height: 1px;
  border: 0;
  background: var(--line);
}

/* --- 长文 -------------------------------------------------------------- */
.prose { max-width: 68ch; }

.prose > * + * { margin-top: 1.1em; }

.prose p { line-height: 1.85; }

.prose h2 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.5rem, 2.8vw, 2.2rem);
  line-height: 1.2;
  margin-top: 2.1em;
}

.prose h3 {
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-top: 1.7em;
}

.prose ul { display: flex; flex-direction: column; gap: 0.55em; }

.prose ul li {
  position: relative;
  padding-left: 1.4rem;
  line-height: 1.8;
}

.prose ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 9px;
  height: 1px;
  background: var(--c-lava);
}

.prose strong { color: #fff; font-weight: 600; }

.section--paper .prose strong { color: #0A1F2B; }
.section--paper .prose ul li::before { background: var(--c-main); }

/* --- 展签式卡片与数据 ------------------------------------------------ */
.plate {
  position: relative;
  background: var(--c-graphite);
  border: 1px solid var(--line);
  padding: clamp(1.1rem, 2.2vw, 1.9rem);
  box-shadow: 7px 7px 0 -1px rgba(10, 31, 43, 0.9),
              7px 7px 0 0 rgba(28, 110, 154, 0.42);
}

.plate--paper {
  background: #fff;
  color: #10222c;
  border-color: rgba(28, 110, 154, 0.35);
  box-shadow: 7px 7px 0 -1px rgba(28, 110, 154, 0.14),
              7px 7px 0 0 rgba(28, 110, 154, 0.34);
}

.stat-num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(2.2rem, 6vw, 5.6rem);
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: var(--c-lava);
  font-variant-numeric: tabular-nums;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.26rem 0.58rem;
  border: 1px solid var(--line);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--c-mist);
}

.tag--signal {
  color: var(--c-signal);
  border-color: rgba(63, 185, 140, 0.5);
}

/* --- 图片容器基础规则（页面阶段放占位图） ------------------------------ */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  border: 1px solid var(--line);
  background: linear-gradient(158deg, var(--c-deep) 0%, var(--c-plate) 48%, var(--c-void) 100%);
}

.media::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(90deg, rgba(127, 192, 220, 0.09) 0 1px, transparent 1px 84px),
    repeating-linear-gradient(0deg, rgba(127, 192, 220, 0.06) 0 1px, transparent 1px 84px);
}

.media > img,
.media > svg,
.media > picture { width: 100%; height: 100%; object-fit: cover; }

.media--wide  { aspect-ratio: 21 / 9; }
.media--16x9  { aspect-ratio: 16 / 9; }
.media--4x3   { aspect-ratio: 4 / 3; }
.media--1x1   { aspect-ratio: 1 / 1; }
.media--3x4   { aspect-ratio: 3 / 4; }

.media__credit {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 2;
  padding: 0.35rem 0.7rem;
  background: rgba(10, 31, 43, 0.82);
  border-top: 1px solid var(--line);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--c-mist);
}

/* --- 按钮 -------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 44px;
  padding: 0.78rem 1.35rem;
  border: 1px solid var(--c-main);
  background: transparent;
  color: var(--c-paper);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  transition: background var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              color var(--dur) var(--ease);
}

.btn:hover { background: rgba(28, 110, 154, 0.22); border-color: var(--c-mist); }

.btn--lava {
  background: var(--c-lava);
  border-color: var(--c-lava);
  color: #fff;
}

.btn--lava:hover { background: #ff6a2a; border-color: var(--c-lava-soft); color: #fff; }

.btn--ghost { border-color: var(--line-soft); color: var(--c-mist); }
.btn--ghost:hover { border-color: var(--c-mist); color: var(--c-paper); }

/* --- 面包屑 ------------------------------------------------------------ */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--c-mist);
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.breadcrumb li + li::before {
  content: '/';
  color: var(--c-mist);
  opacity: 0.44;
}

.breadcrumb a { color: var(--c-mist); transition: color var(--dur) var(--ease); }
.breadcrumb a:hover { color: var(--c-lava-soft); }
.breadcrumb [aria-current="page"] { color: var(--c-paper); }

/* --- 网格与流 ---------------------------------------------------------- */
.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(1rem, 2.2vw, 1.8rem);
}

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--stack-gap, 1.2rem);
}

/* ==========================================================================
   响应式
   ========================================================================== */

@media (max-width: 1023px) {
  :root { --leaguerail-h: 54px; }

  body { padding-left: 0; }

  .skip-link { left: 12px; }

  .navtoggle { display: inline-flex; }

  .leaguerail {
    width: 100%;
    flex-direction: row;
    align-items: center;
    gap: 0;
    padding-inline: var(--pad-x);
    border-right: 0;
  }

  .leaguerail__caption { display: none; }
  .leaguerail__track { width: 100%; }

  .sitenav {
    width: min(322px, 86vw);
    transform: translateX(-102%);
    visibility: hidden;
    box-shadow: 24px 0 60px rgba(0, 0, 0, 0.55);
    transition: transform var(--dur) var(--ease), visibility 0s linear var(--dur);
  }

  .sitenav[data-open="true"] {
    transform: translateX(0);
    visibility: visible;
    transition: transform var(--dur) var(--ease), visibility 0s linear 0s;
  }
}

@media (min-width: 1024px) {
  .navscrim { display: none !important; }
}

@media (max-width: 900px) {
  .footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .footercol:nth-child(odd) {
    padding-left: 0;
    border-left: 0;
  }

  .footercol:nth-child(n + 3) { border-top: 1px solid var(--line-soft); }

  .grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
  .brandbar__sub { display: none; }
  .ghostlink { display: none; }
}

@media (max-width: 620px) {
  .footer__grid { grid-template-columns: minmax(0, 1fr); }

  .footercol,
  .footercol + .footercol {
    padding-left: 0;
    padding-right: 0;
    border-left: 0;
  }

  .footercol + .footercol { border-top: 1px solid var(--line-soft); }

  .footer__base { justify-content: flex-start; }

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

@media (max-width: 460px) {
  .seasonchip { display: none; }
}

/* ------------------------------------------------------------ 降低动效 */
@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;
    transition-delay: 0ms !important;
  }
}