/* ==========================================================================
   球盟会赛场 / assets/site.css
   赛场夜战 + 资料库冷静：框架式页头、双色节奏、档案纸浅色对照区
   ========================================================================== */

:root{
  --ink:#061A15;
  --stand:#0C2B24;
  --board:#123D33;
  --cyan:#35F1D0;
  --mint:#9FFFE8;
  --amber:#FFB347;
  --paper:#F2FFF9;
  --muted:#8BA9A0;
  --archive:#E8F3EC;
  --archive-ink:#25473C;
  --deep:#03100D;
  --alert:#FF6B6B;
  --glass:rgba(53,241,208,.10);
  --glass-line:rgba(53,241,208,.26);
  --hairline:rgba(53,241,208,.14);
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"IBM Plex Mono","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --frame-h:76px;
  --max:1320px;
  --gutter:clamp(16px,4vw,40px);
  --r-s:8px;
  --r-m:16px;
  --r-l:26px;
  --ease:cubic-bezier(.2,.7,.3,1);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  min-height:100vh;
  background:var(--ink);
  color:var(--paper);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.012em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,p,figure,blockquote,dl,dd{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img,svg,video{display:block;max-width:100%;height:auto;}
button{font:inherit;color:inherit;background:none;border:0;padding:0;}
a{color:var(--mint);text-decoration-color:rgba(53,241,208,.42);text-underline-offset:3px;}
a:hover{text-decoration-color:var(--cyan);}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}

/* ---------- 通用排版 ---------- */
.label,
.eyebrow{
  font-family:var(--font-mono);
  font-size:11px;
  line-height:1.6;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--cyan);
}
.data{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.04em;
  line-height:1.2;
}
.container{
  width:100%;
  max-width:var(--max);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.skip-link{
  position:fixed;
  left:16px;
  top:-120px;
  z-index:200;
  display:inline-block;
  padding:10px 20px;
  border-radius:0 0 10px 10px;
  background:var(--cyan);
  color:#04120F;
  font-weight:800;
  font-size:14px;
  letter-spacing:.06em;
  text-decoration:none;
  transition:top .18s var(--ease);
}
.skip-link:focus{top:0;}

/* ==========================================================================
   页头：场次切换器 / 视觉边框
   ========================================================================== */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:linear-gradient(180deg,rgba(6,26,21,.97) 0%,rgba(6,26,21,.86) 100%);
  border-bottom:1px solid var(--glass-line);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  box-shadow:0 18px 40px -34px #000;
}
.site-header::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:2px;
  background:linear-gradient(90deg,var(--cyan) 0%,rgba(53,241,208,.45) 34%,rgba(255,179,71,.9) 78%,var(--amber) 100%);
}
.site-header__inner{
  width:100%;
  max-width:calc(var(--max) + 100px);
  margin-inline:auto;
  padding-inline:var(--gutter);
  height:var(--frame-h);
  display:flex;
  align-items:center;
  gap:clamp(10px,2vw,28px);
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
  padding-right:14px;
  text-decoration:none;
  color:var(--paper);
  border-right:1px solid var(--hairline);
}
.brand__mark{
  width:36px;
  height:36px;
  display:grid;
  place-items:center;
  border-radius:10px;
  border:1px solid var(--glass-line);
  background:linear-gradient(150deg,rgba(53,241,208,.26) 0%,rgba(53,241,208,.04) 100%);
}
.brand__mark-core{
  width:12px;
  height:12px;
  border-radius:3px;
  background:var(--cyan);
  box-shadow:0 0 14px rgba(53,241,208,.85);
}
.brand__text{display:block;}
.brand__name{
  display:block;
  font-size:17px;
  font-weight:800;
  letter-spacing:.12em;
  line-height:1.25;
  color:var(--paper);
}
.brand__meta{
  display:block;
  font-family:var(--font-mono);
  font-size:9px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--muted);
  line-height:1.4;
}
.site-nav{margin-left:auto;}
.site-nav__list{
  display:flex;
  align-items:center;
  gap:2px;
}
.site-nav__link{
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  padding:8px 12px;
  border-radius:var(--r-s);
  border:1px solid transparent;
  color:var(--muted);
  font-size:14px;
  line-height:1.5;
  letter-spacing:.05em;
  text-decoration:none;
  white-space:nowrap;
  transition:color .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease);
}
.site-nav__num{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.1em;
  color:rgba(139,169,160,.62);
  transition:color .18s var(--ease);
}
.site-nav__link:hover{
  color:var(--paper);
  background:var(--glass);
  border-color:rgba(53,241,208,.2);
}
.site-nav__link[aria-current="page"]{
  color:#04120F;
  background:var(--cyan);
  border-color:var(--cyan);
  font-weight:800;
}
.site-nav__link[aria-current="page"] .site-nav__num{color:rgba(4,18,15,.62);}
.header__actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:10px 18px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:14px;
  font-weight:700;
  letter-spacing:.06em;
  line-height:1.5;
  text-decoration:none;
  white-space:nowrap;
  cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .16s var(--ease);
}
.btn:active{transform:translateY(1px);}
.btn--primary{
  background:var(--cyan);
  border-color:var(--cyan);
  color:#04120F;
  box-shadow:0 12px 30px -18px rgba(53,241,208,.95);
}
.btn--primary:hover{background:var(--mint);border-color:var(--mint);}
.btn--ghost{
  background:var(--glass);
  border-color:var(--glass-line);
  color:var(--mint);
}
.btn--ghost:hover{background:rgba(53,241,208,.2);border-color:var(--cyan);color:var(--paper);}
.btn--amber{
  background:var(--amber);
  border-color:var(--amber);
  color:#20120A;
}
.btn--amber:hover{background:#FFC670;border-color:#FFC670;}
.btn--sm{padding:7px 14px;font-size:13px;}
.btn--block{display:flex;width:100%;}

/* ---------- 移动导航按钮 ---------- */
.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 14px;
  border-radius:var(--r-s);
  border:1px solid var(--glass-line);
  background:var(--glass);
  color:var(--mint);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.18em;
  text-transform:uppercase;
  cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.nav-toggle__bars{
  display:inline-flex;
  flex-direction:column;
  gap:3px;
}
.nav-toggle__bar{
  display:block;
  width:15px;
  height:2px;
  border-radius:2px;
  background:currentColor;
  transition:width .18s var(--ease);
}
.nav-toggle:hover .nav-toggle__bar:nth-child(2){width:10px;}
.nav-toggle__label{line-height:1;}
.site-header[data-open="true"] .nav-toggle{
  background:var(--cyan);
  border-color:var(--cyan);
  color:#04120F;
}

/* ---------- 滚动进度 ---------- */
.scroll-progress{
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:2px;
  background:rgba(53,241,208,.10);
  overflow:hidden;
}
.scroll-progress__bar{
  display:block;
  height:100%;
  background:linear-gradient(90deg,var(--cyan) 0%,var(--mint) 55%,var(--amber) 100%);
  transform:scaleX(0);
  transform-origin:0 50%;
  will-change:transform;
}

/* ==========================================================================
   页脚：夜间看台收束层
   ========================================================================== */
.site-footer{
  position:relative;
  margin-top:clamp(48px,7vw,96px);
  background:var(--deep);
  color:var(--muted);
  border-top:1px solid rgba(53,241,208,.2);
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:3px;
  background:linear-gradient(90deg,var(--cyan) 0%,rgba(53,241,208,.18) 38%,var(--amber) 72%,rgba(255,179,71,.25) 100%);
}
.site-footer__top{
  display:grid;
  grid-template-columns:minmax(240px,1fr) minmax(0,1.9fr);
  gap:clamp(26px,4vw,64px);
  padding-block:clamp(40px,5vw,72px) clamp(26px,3.5vw,44px);
}
.site-footer__brand{min-width:0;}
.site-footer__signature{
  display:inline-block;
  font-size:clamp(18px,2vw,22px);
  font-weight:800;
  letter-spacing:.07em;
  line-height:1.4;
  color:var(--paper);
  text-decoration:none;
}
.site-footer__signature:hover{color:var(--mint);}
.site-footer__tagline{
  margin-top:12px;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.16em;
  color:var(--mint);
}
.site-footer__tagline span{color:rgba(139,169,160,.55);padding-inline:4px;}
.site-footer__status{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:18px;
  padding:5px 13px;
  border-radius:999px;
  border:1px solid rgba(53,241,208,.2);
  background:rgba(53,241,208,.06);
  font-size:12px;
  letter-spacing:.06em;
  line-height:1.6;
  color:var(--muted);
}
.site-footer__dot{
  width:7px;height:7px;
  border-radius:50%;
  background:var(--amber);
  box-shadow:0 0 10px rgba(255,179,71,.9);
  flex:0 0 auto;
}
.site-footer__grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(16px,3vw,40px);
}
.site-footer__col{min-width:0;}
.site-footer__col-title{
  margin-bottom:14px;
  padding-bottom:10px;
  border-bottom:1px solid rgba(53,241,208,.16);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--cyan);
}
.site-footer__links{display:grid;gap:9px;}
.site-footer__links a{
  display:inline-block;
  font-size:14px;
  color:rgba(242,255,249,.78);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.site-footer__links a:hover{color:var(--mint);border-bottom-color:rgba(159,255,232,.45);}
.site-footer__contact{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(210px,1fr));
  gap:14px 32px;
  padding-block:clamp(20px,2.5vw,28px);
  border-top:1px solid rgba(53,241,208,.12);
  border-bottom:1px solid rgba(53,241,208,.12);
}
.site-footer__contact-row{display:flex;flex-direction:column;gap:3px;min-width:0;}
.site-footer__contact-label{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:rgba(139,169,160,.8);
}
.site-footer__contact-value{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.02em;
  line-height:1.6;
  color:var(--paper);
  word-break:break-all;
}
.site-footer__bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px 22px;
  padding-block:22px 8px;
}
.site-footer__copy{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:rgba(139,169,160,.85);
}
.site-footer__icp{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:rgba(139,169,160,.85);
}
.site-footer__legal{display:flex;flex-wrap:wrap;gap:8px 18px;}
.site-footer__legal a{
  font-size:13px;
  color:var(--muted);
  text-decoration:none;
}
.site-footer__legal a:hover{color:var(--mint);}
.to-top{
  margin-left:auto;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:999px;
  border:1px solid rgba(53,241,208,.32);
  background:transparent;
  color:var(--mint);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.18em;
  text-transform:uppercase;
  cursor:pointer;
  transition:background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.to-top:hover{background:rgba(53,241,208,.14);border-color:var(--cyan);color:var(--paper);}
.site-footer__note{
  padding-bottom:clamp(24px,3vw,36px);
  font-size:12px;
  letter-spacing:.04em;
  color:rgba(139,169,160,.7);
}

/* ==========================================================================
   共享内容组件
   ========================================================================== */
.breadcrumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  margin-bottom:22px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--muted);
}
.breadcrumbs a{color:var(--muted);text-decoration:none;}
.breadcrumbs a:hover{color:var(--cyan);}
.breadcrumbs__sep{color:rgba(53,241,208,.45);}

.page-head{
  padding-block:clamp(30px,5vw,64px) clamp(20px,3vw,34px);
  border-bottom:1px solid var(--hairline);
}
.page-head__title{
  font-size:clamp(30px,4.6vw,52px);
  line-height:1.16;
  font-weight:800;
  letter-spacing:.02em;
  color:var(--paper);
  margin-bottom:14px;
}
.page-head__lead{
  max-width:62ch;
  font-size:16px;
  line-height:1.8;
  color:var(--muted);
}

.section{padding-block:clamp(36px,5.5vw,76px);}
.section__head{margin-bottom:clamp(20px,3vw,36px);}
.eyebrow{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--cyan);
}
.eyebrow::before{
  content:"";
  width:26px;height:1px;
  background:var(--cyan);
  flex:0 0 auto;
}
.section__title{
  font-size:clamp(24px,3.2vw,38px);
  font-weight:800;
  line-height:1.28;
  letter-spacing:.03em;
  color:var(--paper);
  margin-bottom:12px;
}

.chapter{
  display:grid;
  grid-template-columns:minmax(0,auto) minmax(0,1fr);
  gap:clamp(16px,3vw,44px);
  align-items:start;
  padding-block:clamp(28px,4vw,56px);
  border-top:1px solid var(--hairline);
}
.chapter__num{
  font-family:var(--font-mono);
  font-size:clamp(54px,9vw,110px);
  line-height:.86;
  font-weight:700;
  letter-spacing:-.05em;
  color:rgba(53,241,208,.16);
}
@supports ((-webkit-text-stroke:1px #000)){
  .chapter__num{
    color:transparent;
    -webkit-text-stroke:1px rgba(53,241,208,.55);
  }
}
.chapter__body{min-width:0;font-size:16px;line-height:1.8;color:var(--muted);}

.band{
  background:var(--stand);
  border-block:1px solid var(--hairline);
}
.band--archive{
  background:var(--archive);
  border-block:1px solid rgba(18,61,51,.16);
  color:var(--archive-ink);
}
.band--archive .section__title,
.band--archive .page-head__title{color:#0B2C24;}
.band--archive p,
.band--archive li,
.band--archive .chapter__body{color:var(--archive-ink);}
.band--archive .eyebrow,
.band--archive .label{color:#1F6B58;}
.band--archive .chapter__num{color:rgba(18,61,51,.18);}
@supports ((-webkit-text-stroke:1px #000)){
  .band--archive .chapter__num{
    color:transparent;
    -webkit-text-stroke:1px rgba(18,61,51,.45);
  }
}
.band--archive .chapter{border-top-color:rgba(18,61,51,.2);}

.grid{display:grid;gap:clamp(16px,2.4vw,32px);}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(238px,1fr));}
.grid--4{grid-template-columns:repeat(auto-fit,minmax(186px,1fr));}
@media (min-width:900px){
  .grid--main-side{grid-template-columns:minmax(0,7fr) minmax(0,5fr);}
  .grid--side-main{grid-template-columns:minmax(0,4fr) minmax(0,8fr);}
}

.card{
  position:relative;
  min-width:0;
  padding:clamp(18px,2.4vw,28px);
  border-radius:var(--r-m);
  border:1px solid var(--hairline);
  background:var(--stand);
  color:var(--paper);
}
.card--board{background:var(--board);border-color:rgba(53,241,208,.2);}
.card--glass{
  background:var(--glass);
  border-color:var(--glass-line);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}
.card--amber{border-color:rgba(255,179,71,.4);}

.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 9px;
  border-radius:4px;
  border:1px solid currentColor;
  font-family:var(--font-mono);
  font-size:10px;
  line-height:1.7;
  letter-spacing:.16em;
  text-transform:uppercase;
  white-space:nowrap;
}
.badge--cyan{color:var(--cyan);background:rgba(53,241,208,.1);}
.badge--amber{color:var(--amber);background:rgba(255,179,71,.12);}
.badge--alert{color:var(--alert);background:rgba(255,107,107,.12);}
.badge--paper{color:#0B2C24;background:var(--archive);border-color:transparent;}

.prose{max-width:72ch;font-size:16px;line-height:1.8;}
.prose p{margin-bottom:1.1em;}
.prose p:last-child{margin-bottom:0;}
.prose h2{
  margin:1.6em 0 .6em;
  font-size:clamp(20px,2.4vw,26px);
  font-weight:800;
  letter-spacing:.03em;
  line-height:1.35;
}
.prose h3{
  margin:1.4em 0 .5em;
  font-size:17px;
  font-weight:700;
  letter-spacing:.04em;
}
.prose ul,.prose ol{margin:0 0 1.1em;padding-left:1.2em;list-style:disc;}
.prose li{margin-bottom:.4em;}
.prose strong{color:var(--paper);font-weight:700;}

/* ---------- 图片容器基础规则（页面阶段放置占位/图片） ---------- */
.media{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-m);
  border:1px solid var(--hairline);
  background-color:var(--board);
  background-image:repeating-linear-gradient(135deg,rgba(53,241,208,.07) 0 1px,transparent 1px 16px);
}
.media--wide{aspect-ratio:16/9;}
.media--tall{aspect-ratio:4/5;}
.media--square{aspect-ratio:1/1;}
.media__img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}
.media__caption{
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  text-transform:uppercase;
  line-height:1.6;
  color:var(--muted);
}

/* ---------- 横向 ticker ---------- */
.ticker{
  overflow:hidden;
  border-block:1px solid rgba(53,241,208,.16);
  background:rgba(53,241,208,.05);
}
.ticker__track{
  display:flex;
  align-items:center;
  gap:40px;
  padding-block:10px;
  white-space:nowrap;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.12em;
  color:var(--mint);
}

/* ---------- 章节目录跟随 ---------- */
[data-spy-link]{
  display:block;
  padding:7px 12px;
  border-left:2px solid rgba(53,241,208,.18);
  color:var(--muted);
  font-size:14px;
  line-height:1.6;
  text-decoration:none;
  transition:color .16s var(--ease),border-color .16s var(--ease),background .16s var(--ease);
}
[data-spy-link]:hover{color:var(--paper);background:rgba(53,241,208,.05);}
[data-spy-link][aria-current="true"]{
  color:var(--cyan);
  border-left-color:var(--cyan);
  background:rgba(53,241,208,.08);
}

/* ==========================================================================
   断点
   ========================================================================== */
@media (max-width:1120px){
  .site-nav__link{padding:8px 9px;font-size:13px;}
  .site-nav__num{display:none;}
  .header__actions .btn--ghost{display:none;}
}

@media (max-width:1040px){
  .site-nav{
    position:fixed;
    top:var(--frame-h);
    right:0;
    bottom:0;
    width:min(370px,88vw);
    margin:0;
    padding:24px 20px 48px;
    overflow-y:auto;
    background:linear-gradient(180deg,rgba(12,43,36,.99) 0%,rgba(6,26,21,.99) 100%);
    border-left:1px solid var(--glass-line);
    box-shadow:-40px 0 90px -50px #000;
    transform:translateX(103%);
    visibility:hidden;
    transition:transform .24s var(--ease),visibility 0s linear .24s;
  }
  .site-header[data-open="true"] .site-nav{
    transform:translateX(0);
    visibility:visible;
    transition:transform .24s var(--ease),visibility 0s linear 0s;
  }
  .site-nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:6px;
  }
  .site-nav__link{
    display:flex;
    padding:13px 14px;
    border:1px solid rgba(53,241,208,.14);
    border-radius:12px;
    color:var(--paper);
    font-size:16px;
    letter-spacing:.06em;
  }
  .site-nav__num{display:inline;font-size:11px;}
  .site-nav__link[aria-current="page"]{color:#04120F;}
  .nav-toggle{display:inline-flex;}
}

@media (max-width:860px){
  .site-footer__top{grid-template-columns:minmax(0,1fr);}
  .site-footer__grid{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));}
  .chapter{grid-template-columns:minmax(0,1fr);gap:12px;}
  .chapter__num{font-size:clamp(48px,14vw,72px);}
}

@media (max-width:640px){
  :root{--frame-h:64px;}
  .brand{border-right:0;padding-right:0;gap:10px;}
  .brand__mark{width:32px;height:32px;border-radius:9px;}
  .brand__meta{display:none;}
  .brand__name{font-size:16px;letter-spacing:.08em;}
  .btn--primary{padding:8px 13px;font-size:12px;letter-spacing:.03em;}
  .site-footer__bottom{gap:10px 16px;}
  .to-top{margin-left:0;}
  .site-footer__contact{grid-template-columns:minmax(0,1fr);}
}

@media (max-width:420px){
  .brand__name{font-size:14px;letter-spacing:.04em;}
  .brand__mark{width:28px;height:28px;}
  .brand__mark-core{width:10px;height:10px;}
  .btn--primary{padding:7px 10px;font-size:11px;}
  .nav-toggle{padding:8px 10px;}
  .nav-toggle__label{display:none;}
}

/* ==========================================================================
   可访问性 / 动效偏好
   ========================================================================== */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
  .scroll-progress__bar{transition:none;}
}