/* ==========================================================================
   全站体育 · 中文专区 V2.0 — 共享样式表 /assets/site.css
   夜间球场灯光 · 数据面板 · 非对称编辑部节奏 · 现代粗野主义
   ========================================================================== */

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{
  -webkit-text-size-adjust:100%;
  text-size-adjust:100%;
  color-scheme:dark;
  scroll-behavior:smooth;
}
body,h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd,ul,ol{margin:0}
ul,ol{padding:0}
img,svg,video{max-width:100%;height:auto;display:block}
a{color:inherit}
button{font:inherit;color:inherit}
table{border-collapse:collapse;border-spacing:0}
hr{border:0}
main{display:block}

/* ---------- 变量 ---------- */
:root{
  --deep-sea:#0A1B2A;
  --midnight:#102B44;
  --cyan:#2DE2E6;
  --flare:#FF5E3A;
  --violet:#7B61FF;
  --wine:#8B1E3F;
  --ice:#D7F9F7;
  --mist:#9BB0C1;
  --char:#05111C;
  --gold:#F2C94C;

  --cyan-a10:rgba(45,226,230,.10);
  --cyan-a18:rgba(45,226,230,.18);
  --flare-a12:rgba(255,94,58,.12);
  --violet-a14:rgba(123,97,255,.14);
  --wine-a22:rgba(139,30,63,.22);
  --line-soft:rgba(155,176,193,.26);
  --line-hard:rgba(215,249,247,.14);
  --char-a82:rgba(5,17,28,.82);

  --font-head:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:"Roboto Mono","IBM Plex Mono",SFMono-Regular,Menlo,Consolas,monospace;

  --shell:1340px;
  --header-h:78px;
  --gutter:clamp(18px,4vw,44px);
  --section-y:clamp(46px,7vw,104px);

  --shadow-hard:7px 7px 0 rgba(5,17,28,.85);
  --shadow-soft:0 18px 40px rgba(5,17,28,.45);
  --radius:2px;
  --ease:cubic-bezier(.22,.8,.3,1);
}

/* ---------- 基础排版 ---------- */
body{
  min-height:100vh;
  background:var(--deep-sea);
  color:var(--ice);
  font-family:var(--font-body);
  font-size:1rem;
  line-height:1.75;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{
  font-family:var(--font-head);
  font-weight:200;
  line-height:1.1;
  letter-spacing:-.01em;
  color:var(--ice);
  text-wrap:balance;
}
p{text-wrap:pretty}
strong,b{font-weight:700;color:var(--ice)}
::selection{background:var(--cyan);color:var(--char)}

:focus-visible{outline:3px solid var(--cyan);outline-offset:3px}

::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--char)}
::-webkit-scrollbar-thumb{background:var(--midnight);border:2px solid var(--char)}
::-webkit-scrollbar-thumb:hover{background:var(--cyan)}

#main-content{scroll-margin-top:calc(var(--header-h) + 16px)}

/* ---------- 隐藏跳转链接 ---------- */
.skip-link{
  position:fixed;
  top:-140px;
  left:var(--gutter);
  z-index:400;
  padding:.72rem 1.2rem;
  background:var(--cyan);
  color:var(--char);
  font-family:var(--font-mono);
  font-size:.76rem;
  letter-spacing:.16em;
  text-decoration:none;
  border:2px solid var(--char);
  box-shadow:4px 4px 0 var(--char);
  transition:top .2s var(--ease);
}
.skip-link:focus{top:14px}

/* ==========================================================================
   头部：透明叠加导航 → 滚动实色阅读条
   ========================================================================== */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:120;
  background:linear-gradient(180deg,rgba(5,17,28,.92) 0%,rgba(10,27,42,.46) 62%,rgba(10,27,42,0) 100%);
  border-bottom:1px solid transparent;
  transition:background-color .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header[data-scrolled]{
  background:rgba(10,27,42,.97);
  border-bottom:2px solid var(--cyan);
  box-shadow:0 14px 34px rgba(5,17,28,.62);
}

.header-shell{
  width:100%;
  max-width:var(--shell);
  height:var(--header-h);
  margin:0 auto;
  padding:0 var(--gutter);
  display:flex;
  align-items:center;
  gap:clamp(12px,2vw,34px);
}

/* 品牌标记：球场中线的方块隐喻 */
.brand{
  display:inline-flex;
  align-items:center;
  gap:.72rem;
  flex:0 0 auto;
  text-decoration:none;
}
.brand-glyph{
  position:relative;
  width:34px;height:34px;
  flex:0 0 auto;
  background:var(--flare);
  border:2px solid var(--char);
  box-shadow:3px 3px 0 var(--cyan);
}
.brand-glyph::before,
.brand-glyph::after{content:"";position:absolute;background:var(--char)}
.brand-glyph::before{left:5px;right:5px;top:50%;height:2px;transform:translateY(-50%)}
.brand-glyph::after{top:5px;bottom:5px;left:50%;width:2px;transform:translateX(-50%)}
.brand-text{display:flex;flex-direction:column;line-height:1.18}
.brand-name{
  font-family:var(--font-head);
  font-weight:800;
  font-size:1.05rem;
  letter-spacing:.05em;
  color:var(--ice);
}
.brand-sub{
  font-family:var(--font-mono);
  font-size:.62rem;
  letter-spacing:.2em;
  color:var(--cyan);
  text-transform:uppercase;
}

/* 主导航 */
.site-nav{
  display:flex;
  align-items:center;
  justify-content:center;
  flex:1 1 auto;
  min-width:0;
}
.nav-title{display:none}
.nav-list{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:clamp(6px,1.1vw,20px);
  list-style:none;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:.55rem .15rem;
  color:var(--ice);
  font-size:clamp(.78rem,1.02vw,.9rem);
  letter-spacing:.06em;
  text-decoration:none;
  white-space:nowrap;
  border-bottom:2px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
.nav-link:hover{color:var(--cyan);border-bottom-color:var(--cyan)}
.nav-link[aria-current="page"]{color:var(--cyan);border-bottom-color:var(--flare)}

/* 面板内的辅助信息（仅移动端） */
.nav-aside{display:none}
.nav-aside-line{
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.18em;
  color:var(--mist);
  text-transform:uppercase;
  margin-bottom:.8rem;
}
.nav-aside-btn{width:100%}
.nav-aside-note{
  margin-top:.8rem;
  font-size:.76rem;
  line-height:1.6;
  color:var(--mist);
}

/* 工具区 */
.header-tools{
  display:flex;
  align-items:center;
  gap:.7rem;
  margin-left:auto;
  flex:0 0 auto;
}
.header-hint{
  max-width:16ch;
  font-size:.7rem;
  line-height:1.45;
  letter-spacing:.04em;
  color:var(--mist);
}

/* 移动导航按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:.55rem;
  padding:.5rem .75rem;
  background:transparent;
  border:2px solid var(--cyan);
  color:var(--cyan);
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.18em;
  cursor:pointer;
}
.nav-toggle-bar{
  position:relative;
  display:block;
  width:16px;height:2px;
  background:currentColor;
}
.nav-toggle-bar::before,
.nav-toggle-bar::after{
  content:"";
  position:absolute;left:0;
  width:16px;height:2px;
  background:currentColor;
  transition:transform .22s var(--ease),top .22s var(--ease);
}
.nav-toggle-bar::before{top:-5px}
.nav-toggle-bar::after{top:5px}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::after{top:0;transform:rotate(-45deg)}

/* 滚动进度线 */
.scroll-progress{
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  background:linear-gradient(90deg,var(--cyan),var(--flare));
  transform:scaleX(0);
  transform-origin:0 50%;
  opacity:0;
  pointer-events:none;
  transition:opacity .3s ease;
}
.site-header[data-scrolled] .scroll-progress{opacity:1}

body.nav-open{overflow:hidden}

/* ==========================================================================
   按钮
   ========================================================================== */
.btn{
  --btn-bg:transparent;
  --btn-fg:var(--ice);
  --btn-bd:var(--line-soft);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  padding:.62rem 1.05rem;
  font-family:var(--font-head);
  font-size:.82rem;
  font-weight:600;
  letter-spacing:.09em;
  text-decoration:none;
  text-align:center;
  color:var(--btn-fg);
  background:var(--btn-bg);
  border:2px solid var(--btn-bd);
  border-radius:var(--radius);
  box-shadow:4px 4px 0 rgba(5,17,28,.75);
  cursor:pointer;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),
             background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn:hover{transform:translate(-2px,-2px);box-shadow:7px 7px 0 rgba(5,17,28,.85)}
.btn:active{transform:translate(1px,1px);box-shadow:2px 2px 0 rgba(5,17,28,.85)}
.btn-signal{--btn-bg:var(--cyan);--btn-fg:var(--char);--btn-bd:var(--char)}
.btn-signal:hover{--btn-bg:var(--ice)}
.btn-ghost{--btn-fg:var(--cyan);--btn-bd:var(--cyan);--btn-bg:var(--cyan-a10)}
.btn-ghost:hover{--btn-bg:var(--cyan-a18)}
.btn-flare{--btn-bg:var(--flare);--btn-fg:#fff;--btn-bd:var(--char)}
.btn-flare:hover{--btn-bg:#FF7A5C}
.btn-line{--btn-fg:var(--ice);--btn-bd:var(--line-soft)}
.btn-line:hover{--btn-fg:var(--cyan);--btn-bd:var(--cyan)}

/* ==========================================================================
   布局与分区
   ========================================================================== */
.shell{
  width:100%;
  max-width:var(--shell);
  margin:0 auto;
  padding:0 var(--gutter);
}
.page-top{padding-top:calc(var(--header-h) + clamp(14px,3vw,48px))}
.section{padding:var(--section-y) 0}
.section--midnight{background:var(--midnight)}
.section--tint{
  background:linear-gradient(180deg,rgba(16,43,68,.9) 0%,rgba(10,27,42,1) 100%);
}
.section--violet{
  background:linear-gradient(160deg,rgba(123,97,255,.20) 0%,rgba(16,43,68,.96) 58%,rgba(10,27,42,1) 100%);
  border-top:2px solid rgba(123,97,255,.5);
}
.section--wine{
  background:linear-gradient(160deg,rgba(139,30,63,.34) 0%,rgba(10,27,42,1) 62%);
  border-top:2px solid rgba(139,30,63,.75);
}
.section--char{
  background:var(--char);
  border-top:1px solid var(--line-soft);
}
.rule{height:3px;background:var(--cyan)}
.rule--soft{height:1px;background:var(--line-soft)}
.rule--flare{background:var(--flare)}

/* ---------- 文本元素 ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.62rem;
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.26em;
  text-transform:uppercase;
  color:var(--cyan);
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--flare)}
.index-num{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.2em;
  color:var(--mist);
}
.display{
  font-family:var(--font-head);
  font-weight:200;
  font-size:clamp(2.8rem,7vw,6.5rem);
  line-height:1.02;
  letter-spacing:-.025em;
}
.section-title{
  font-family:var(--font-head);
  font-weight:200;
  font-size:clamp(1.6rem,3vw,2.6rem);
  line-height:1.15;
  letter-spacing:-.015em;
}
.lead{
  max-width:64ch;
  font-size:clamp(1rem,1.3vw,1.1rem);
  line-height:1.8;
  color:rgba(215,249,247,.86);
}

/* ---------- 数据锚点 ---------- */
.stat{display:flex;flex-direction:column;gap:.22rem}
.stat-value{
  font-family:var(--font-mono);
  font-size:clamp(2.4rem,6vw,5rem);
  font-weight:600;
  line-height:1;
  letter-spacing:-.02em;
  color:var(--cyan);
}
.stat-label{
  font-family:var(--font-mono);
  font-size:.66rem;
  letter-spacing:.2em;
  color:var(--mist);
  text-transform:uppercase;
}
.stat--flare .stat-value{color:var(--flare)}
.stat--gold .stat-value{color:var(--gold)}
.stat--violet .stat-value{color:#B9AEFF}

/* ---------- 面板 ---------- */
.panel{
  background:var(--midnight);
  border:2px solid var(--line-hard);
  border-left:4px solid var(--cyan);
  border-radius:var(--radius);
  padding:clamp(18px,2.3vw,30px);
  box-shadow:var(--shadow-hard);
  transition:border-color .22s ease,transform .22s var(--ease),box-shadow .22s var(--ease);
}
.panel:hover{border-left-color:var(--cyan);transform:translate(-2px,-2px);box-shadow:9px 9px 0 rgba(5,17,28,.9)}
.panel--violet{border-left-color:var(--violet)}
.panel--wine{border-left-color:var(--wine)}
.panel--flare{border-left-color:var(--flare)}
.panel--gold{border-left-color:var(--gold)}
.panel-title{
  margin:0 0 .5rem;
  font-family:var(--font-head);
  font-size:1.14rem;
  font-weight:600;
  letter-spacing:.01em;
}
.panel p:last-child{margin-bottom:0}
.panel p{color:rgba(215,249,247,.82);font-size:.95rem}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  padding:.26rem .62rem;
  font-family:var(--font-mono);
  font-size:.64rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--mist);
  border:1px solid var(--line-soft);
}
.tag--cyan{color:var(--cyan);border-color:rgba(45,226,230,.5)}
.tag--flare{color:var(--flare);border-color:rgba(255,94,58,.5)}
.tag--gold{color:var(--gold);border-color:rgba(242,201,76,.5)}
.tag--violet{color:#B9AEFF;border-color:rgba(123,97,255,.55)}

/* ==========================================================================
   网格
   ========================================================================== */
.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))}
.grid-asym{grid-template-columns:minmax(0,1.62fr) minmax(0,1fr)}
.grid-side{grid-template-columns:minmax(0,240px) minmax(0,1fr)}

/* ==========================================================================
   媒体容器（供页面阶段放置图片）
   ========================================================================== */
.media{
  position:relative;
  margin:0;
  overflow:hidden;
  background:var(--char);
  border:2px solid var(--line-hard);
  box-shadow:var(--shadow-hard);
}
.media img{
  display:block;
  width:100%;height:100%;
  object-fit:cover;
  filter:saturate(1.06) contrast(1.05);
}
.media--16x9{aspect-ratio:16/9}
.media--4x3{aspect-ratio:4/3}
.media--3x4{aspect-ratio:3/4}
.media--1x1{aspect-ratio:1/1}
.media--wide{aspect-ratio:21/9}
.media-placeholder{
  display:grid;
  place-items:center;
  aspect-ratio:16/9;
  padding:1rem;
  text-align:center;
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.2em;
  color:var(--mist);
  background:
    repeating-linear-gradient(135deg,var(--cyan-a10) 0 12px,transparent 12px 24px),
    var(--char);
  border:2px dashed rgba(45,226,230,.42);
}
.media-caption{
  margin-top:.7rem;
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.12em;
  color:var(--mist);
}

/* ==========================================================================
   面包屑
   ========================================================================== */
.breadcrumbs{margin:0 0 1.3rem}
.breadcrumbs ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.5rem;
  list-style:none;
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.16em;
  color:var(--mist);
}
.breadcrumbs li{display:inline-flex;align-items:center;gap:.5rem}
.breadcrumbs li+li::before{content:"/";color:rgba(155,176,193,.55)}
.breadcrumbs a{color:var(--mist);text-decoration:none;transition:color .2s ease}
.breadcrumbs a:hover{color:var(--cyan)}
.breadcrumbs [aria-current="page"]{color:var(--ice)}

/* ==========================================================================
   正文容器
   ========================================================================== */
.prose{
  max-width:72ch;
  font-size:1.0625rem;
  line-height:1.8;
  color:rgba(215,249,247,.9);
}
.prose > * + *{margin-top:1.15em}
.prose h2{
  margin-top:2.2em;
  font-size:clamp(1.45rem,2.4vw,2.1rem);
  font-weight:250;
}
.prose h3{
  margin-top:1.8em;
  font-size:1.16rem;
  font-weight:600;
}
.prose ul,.prose ol{padding-left:1.35em}
.prose li + li{margin-top:.4em}
.prose ul li::marker{color:var(--cyan)}
.prose ol li::marker{color:var(--flare);font-family:var(--font-mono)}
.prose a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
.prose blockquote{
  margin:1.7em 0;
  padding:1em 1.25em;
  border-left:4px solid var(--flare);
  background:var(--flare-a12);
  color:var(--ice);
}
.prose code{
  font-family:var(--font-mono);
  font-size:.9em;
  padding:.12em .38em;
  color:var(--cyan);
  background:var(--cyan-a10);
  border:1px solid var(--line-hard);
}

/* ==========================================================================
   数据表格
   ========================================================================== */
.data-table{
  width:100%;
  font-size:.92rem;
  background:var(--midnight);
  border:2px solid var(--line-hard);
  box-shadow:var(--shadow-hard);
}
.data-table caption{
  padding:.8rem 1rem;
  text-align:left;
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.2em;
  color:var(--mist);
  text-transform:uppercase;
  background:var(--char);
  border-bottom:2px solid var(--cyan);
}
.data-table th,.data-table td{
  padding:.78rem .95rem;
  text-align:left;
  border-bottom:1px solid var(--line-soft);
}
.data-table thead th{
  font-family:var(--font-mono);
  font-size:.66rem;
  font-weight:500;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--cyan);
  border-bottom:2px solid var(--cyan);
}
.data-table tbody tr{transition:background-color .18s ease}
.data-table tbody tr:hover{background:var(--cyan-a10)}
.data-table .num-cell{
  font-family:var(--font-mono);
  color:var(--flare);
  text-align:right;
  letter-spacing:.02em;
}
.data-table th[data-sort]{
  cursor:pointer;
  user-select:none;
}
.data-table th[data-sort]::after{content:" ↕";color:var(--mist)}
.data-table th[aria-sort="ascending"]::after{content:" ↑";color:var(--flare)}
.data-table th[aria-sort="descending"]::after{content:" ↓";color:var(--flare)}

/* ==========================================================================
   页脚
   ========================================================================== */
.site-footer{
  position:relative;
  margin-top:clamp(56px,8vw,118px);
  color:var(--ice);
  background-color:var(--char);
  background-image:
    repeating-linear-gradient(90deg,rgba(45,226,230,.06) 0 1px,transparent 1px 88px),
    linear-gradient(180deg,rgba(16,43,68,.94) 0%,rgba(5,17,28,1) 58%);
  border-top:3px solid var(--cyan);
}
.footer-grid{
  width:100%;
  max-width:var(--shell);
  margin:0 auto;
  padding:clamp(34px,5vw,66px) var(--gutter) clamp(24px,3vw,42px);
  display:grid;
  grid-template-columns:minmax(0,1.5fr) minmax(0,1fr) minmax(0,1.25fr);
  gap:clamp(24px,4vw,56px);
  border-bottom:1px solid var(--line-soft);
}
.footer-logo{
  display:inline-block;
  margin:0 0 .55rem;
  font-family:var(--font-head);
  font-weight:800;
  font-size:1.46rem;
  letter-spacing:.05em;
  color:var(--ice);
}
.footer-logo::after{
  content:"";
  display:block;
  width:46px;height:3px;
  margin-top:.5rem;
  background:var(--flare);
}
.footer-line{
  margin:0 0 1rem;
  max-width:34ch;
  font-size:.9rem;
  color:var(--mist);
}
.footer-note{
  display:inline-block;
  padding:.3rem .65rem;
  font-family:var(--font-mono);
  font-size:.66rem;
  letter-spacing:.16em;
  color:var(--gold);
  border:1px solid rgba(242,201,76,.42);
}
.footer-meta{
  margin-top:1rem;
  font-size:.78rem;
  line-height:1.7;
  color:rgba(155,176,193,.86);
}
.footer-title{
  margin:0 0 1rem;
  font-family:var(--font-mono);
  font-size:.68rem;
  font-weight:500;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--cyan);
}
.footer-nav ul{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:.55rem 1.4rem;
  list-style:none;
}
.footer-link{
  position:relative;
  display:inline-block;
  padding-left:.98rem;
  font-size:.875rem;
  color:var(--ice);
  text-decoration:none;
  transition:color .2s ease;
}
.footer-link::before{
  content:"";
  position:absolute;
  left:0;top:.72em;
  width:6px;height:2px;
  background:var(--mist);
  transition:width .22s var(--ease),background-color .2s ease;
}
.footer-link:hover{color:var(--cyan)}
.footer-link:hover::before{width:13px;background:var(--flare)}
.footer-contact{display:flex;flex-direction:column}
.contact-item{
  display:flex;
  flex-direction:column;
  gap:.12rem;
  margin-bottom:.95rem;
}
.contact-label{
  font-family:var(--font-mono);
  font-size:.64rem;
  letter-spacing:.2em;
  color:var(--mist);
  text-transform:uppercase;
}
.contact-value{
  font-size:.925rem;
  color:var(--ice);
  word-break:break-word;
}
.footer-hint{
  margin-top:.4rem;
  padding-left:.78rem;
  border-left:3px solid var(--wine);
  font-size:.78rem;
  line-height:1.65;
  color:rgba(155,176,193,.9);
}
.footer-base{
  width:100%;
  max-width:var(--shell);
  margin:0 auto;
  padding:1.1rem var(--gutter) 2.4rem;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:.6rem 1.6rem;
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.12em;
  color:var(--mist);
}
.footer-icp{color:var(--ice)}

/* ==========================================================================
   滚动显现
   ========================================================================== */
.js-reveal [data-reveal]{
  opacity:0;
  transform:translateY(20px);
  transition:opacity .62s ease,transform .62s var(--ease);
}
.js-reveal [data-reveal].is-visible{opacity:1;transform:none}

/* ==========================================================================
   响应式：平板与移动
   ========================================================================== */
@media (max-width:1240px){
  .header-hint{display:none}
}

@media (max-width:1023px){
  :root{
    --header-h:66px;
    --gutter:clamp(16px,4.6vw,26px);
  }
  .brand-glyph{width:29px;height:29px;box-shadow:2px 2px 0 var(--cyan)}
  .brand-name{font-size:.98rem}
  .brand-sub{font-size:.58rem}

  .nav-toggle{display:inline-flex}

  .site-nav{
    position:fixed;
    top:var(--header-h);
    right:0;
    left:auto;
    z-index:110;
    width:min(88vw,380px);
    height:calc(100vh - var(--header-h));
    height:calc(100dvh - var(--header-h));
    padding:1.7rem var(--gutter) 2.6rem;
    display:flex;
    flex-direction:column;
    align-items:stretch;
    justify-content:flex-start;
    overflow-y:auto;
    background:var(--midnight);
    background-image:linear-gradient(180deg,rgba(45,226,230,.08) 0%,rgba(16,43,68,0) 34%);
    border-left:3px solid var(--cyan);
    transform:translateX(105%);
    transition:transform .34s var(--ease),box-shadow .34s ease;
  }
  .site-nav[data-open]{
    transform:translateX(0);
    box-shadow:-18px 0 44px rgba(5,17,28,.72);
  }
  .nav-title{
    display:block;
    margin-bottom:.9rem;
    font-family:var(--font-mono);
    font-size:.66rem;
    letter-spacing:.24em;
    text-transform:uppercase;
    color:var(--mist);
  }
  .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
  }
  .nav-list li + li{border-top:1px solid var(--line-hard)}
  .nav-link{
    display:block;
    padding:.95rem .2rem;
    font-size:1rem;
    white-space:normal;
    border-bottom:2px solid transparent;
  }
  .nav-link[aria-current="page"]{
    color:var(--cyan);
    border-bottom-color:var(--flare);
  }
  .nav-aside{
    display:block;
    margin-top:auto;
    padding-top:1.8rem;
  }
  .grid-asym,
  .grid-side{grid-template-columns:1fr}
}

@media (max-width:900px){
  .grid-2,.grid-3{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand{grid-column:1 / -1}
}

@media (max-width:640px){
  .header-cta{display:none}
  .display{font-size:clamp(2.4rem,11vw,3.6rem)}
  .footer-grid{grid-template-columns:1fr;gap:2.2rem}
  .footer-nav ul{grid-template-columns:1fr}
  .footer-base{flex-direction:column;align-items:flex-start}
}

/* ==========================================================================
   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;
  }
  .js-reveal [data-reveal]{opacity:1;transform:none}
  .btn:hover{transform:none}
  .panel:hover{transform:none}
}