/* ============================================================
   杏运体育 · 共享站点样式 /assets/site.css
   技术蓝图网格 × 球场跑道 · 粗野主义边框 · 记分牌数字
   ============================================================ */

:root{
  --apricot:#F28C28;
  --apricot-deep:#D9721A;
  --almond:#FDF6EC;
  --sand:#F3E7D3;
  --ink:#1F3D2B;
  --ink-soft:#2F5A3F;
  --cyan:#00C2A8;
  --cyan-deep:#009E8A;
  --board:#14201A;
  --gray:#6B7C72;
  --line:#E0D5C2;
  --ochre:#B7500F;

  --font-display:"Source Han Serif SC","Noto Serif SC","Songti SC","SimSun",serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-cond:"Barlow Condensed","Oswald","Arial Narrow",Arial,sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",Consolas,"Courier New",monospace;

  --fs-1:.75rem;
  --fs-2:.9375rem;
  --fs-3:1.1875rem;
  --fs-4:1.5rem;
  --fs-5:1.875rem;
  --fs-6:2.3125rem;
  --fs-7:2.875rem;
  --fs-8:3.625rem;

  --wrap:1200px;
  --wrap-wide:1440px;
  --rail:260px;
  --gutter:clamp(16px,4vw,32px);

  --bd:3px solid var(--ink);
  --bd-thin:1px solid var(--line);
  --shadow-hard:8px 8px 0 var(--ink);
  --shadow-soft:4px 4px 0 var(--ink);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:88px}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:1rem;
  line-height:1.75;
  color:var(--board);
  background-color:var(--almond);
  background-image:
    linear-gradient(to right,rgba(31,61,43,.055) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(31,61,43,.055) 1px,transparent 1px);
  background-size:80px 80px;
  min-height:100vh;
}
img,svg,video{display:block;max-width:100%;height:auto}
figure{margin:0}
h1,h2,h3,h4,h5{
  margin:0;
  font-family:var(--font-display);
  font-weight:600;
  line-height:1.25;
  letter-spacing:.01em;
  color:var(--ink);
}
p{margin:0 0 .9em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0}
a{color:var(--ink);text-underline-offset:3px}
table{border-collapse:collapse;width:100%}
[hidden]{display:none!important}
::selection{background:var(--apricot);color:var(--ink)}
:focus-visible{outline:3px solid var(--cyan);outline-offset:3px}

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

/* ---------- skip link ---------- */
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  padding:10px 18px;background:var(--ink);color:var(--almond);
  font-weight:700;font-size:var(--fs-2);text-decoration:none;
  border:3px solid var(--apricot);
}
.skip-link:focus{left:8px;top:8px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--almond);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease,border-color .22s ease;
}
.site-header.is-scrolled{
  box-shadow:0 8px 0 rgba(31,61,43,.12);
  border-bottom-color:var(--ink);
}
.command-bar{
  max-width:var(--wrap-wide);
  margin:0 auto;
  padding:0 var(--gutter);
  height:56px;
  display:flex;
  align-items:center;
  gap:clamp(10px,2vw,26px);
  transition:height .22s ease;
}
.site-header.is-scrolled .command-bar{height:44px}

.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none;color:inherit}
.brand__mark{
  width:32px;height:32px;flex:0 0 auto;
  display:grid;place-items:center;
  background:var(--apricot);color:var(--ink);
  border:2px solid var(--ink);
  box-shadow:3px 3px 0 var(--ink);
  font-family:var(--font-display);font-weight:600;font-size:1rem;line-height:1;
}
.brand__text{display:block;line-height:1.1}
.brand__name{
  display:block;
  font-family:var(--font-display);font-weight:600;
  font-size:1.0625rem;letter-spacing:.06em;color:var(--ink);
}
.brand__tag{
  display:block;
  font-family:var(--font-cond);font-size:.6875rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--gray);
}

.main-nav{flex:1 1 auto;display:flex;justify-content:center}
.main-nav__list{display:flex;align-items:center;gap:clamp(6px,1.6vw,20px)}
.nav-link{
  position:relative;display:inline-block;
  padding:6px 2px;
  font-size:.875rem;font-weight:500;letter-spacing:.06em;
  color:var(--board);text-decoration:none;
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;
  background:var(--apricot);
  transform:scaleX(0) skewX(-6deg);transform-origin:left;
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:scaleX(1) skewX(-6deg)}
.nav-link[aria-current="page"]{color:var(--ink);font-weight:700}
.nav-link[aria-current="page"]::after{transform:scaleX(1) skewX(-6deg)}

.command-bar__actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;margin-left:auto}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:9px 16px;
  border:2px solid var(--ink);
  background:var(--almond);color:var(--ink);
  font-family:var(--font-body);font-weight:700;font-size:.8125rem;letter-spacing:.06em;
  text-decoration:none;cursor:pointer;
  box-shadow:4px 4px 0 var(--ink);
  transition:transform .16s ease,box-shadow .16s ease,background-color .16s ease,color .16s ease,border-color .16s ease;
}
.btn:hover{transform:translate(-2px,-2px);box-shadow:6px 6px 0 var(--ink);border-color:var(--apricot-deep)}
.btn:active{transform:translate(2px,2px);box-shadow:1px 1px 0 var(--ink)}
.btn--primary{background:var(--apricot)}
.btn--primary:hover{background:var(--apricot-deep);color:var(--almond)}
.btn--ghost{background:var(--sand)}
.btn--sm{padding:6px 12px;font-size:.75rem;box-shadow:3px 3px 0 var(--ink)}
.btn--sm:hover{box-shadow:5px 5px 0 var(--ink)}
.btn--block{display:flex;width:100%}

.icon-btn{
  position:relative;width:36px;height:36px;flex:0 0 auto;
  display:grid;place-items:center;
  border:2px solid var(--ink);background:var(--almond);
  text-decoration:none;
  transition:background-color .16s ease;
}
.icon-btn:hover{background:var(--apricot)}
.icon-btn__glyph{
  position:relative;display:block;
  width:13px;height:13px;
  border:2px solid var(--ink);border-radius:50%;
}
.icon-btn__glyph::after{
  content:"";position:absolute;right:-6px;bottom:-4px;
  width:8px;height:2px;background:var(--ink);
  transform:rotate(45deg);
}

.nav-toggle{
  display:none;align-items:center;gap:8px;
  padding:7px 11px;cursor:pointer;
  border:2px solid var(--ink);background:var(--sand);
  font-family:var(--font-cond);font-size:.75rem;letter-spacing:.14em;text-transform:uppercase;
  box-shadow:3px 3px 0 var(--ink);
}
.nav-toggle:hover{background:var(--apricot)}
.nav-toggle__bars{position:relative;display:block;width:18px;height:12px}
.nav-toggle__bars::before,
.nav-toggle__bars::after,
.nav-toggle__bars{
  border-top:2px solid var(--ink);
}
.nav-toggle__bars::before,
.nav-toggle__bars::after{content:"";position:absolute;left:0;width:18px}
.nav-toggle__bars::before{top:3px}
.nav-toggle__bars::after{top:9px}
.nav-toggle__label{display:inline-block}

.header-progress{
  position:absolute;left:0;bottom:-1px;z-index:2;
  display:block;width:0;height:2px;
  background:linear-gradient(90deg,var(--apricot),var(--cyan));
  transition:width .1s linear;
}

/* ---------- footer ---------- */
.site-footer{
  margin-top:clamp(48px,8vw,96px);
  background:var(--ink);
  color:rgba(253,246,236,.8);
  border-top:6px solid var(--apricot);
}
.footer-grid{
  max-width:var(--wrap);
  margin:0 auto;
  padding:clamp(36px,6vw,64px) var(--gutter) clamp(24px,4vw,44px);
  display:grid;
  gap:clamp(24px,3vw,44px);
  grid-template-columns:1.5fr 1fr 1fr 1.4fr;
  align-items:start;
}
.footer-col{min-width:0}
.footer-col--brand{padding-right:clamp(0px,2vw,24px)}
.footer-brand{
  margin:0 0 12px;
  font-family:var(--font-display);font-weight:600;
  font-size:var(--fs-5);letter-spacing:.06em;color:var(--almond);
}
.footer-desc{
  max-width:36ch;margin:0 0 16px;
  font-size:var(--fs-2);line-height:1.7;color:rgba(253,246,236,.7);
}
.footer-cert{
  display:inline-flex;align-items:center;gap:8px;
  margin:0;padding:4px 10px;
  border:1px solid rgba(0,194,168,.5);
  font-family:var(--font-cond);font-size:var(--fs-1);
  letter-spacing:.14em;text-transform:uppercase;color:var(--cyan);
}
.footer-cert__dot{width:8px;height:8px;background:var(--cyan);transform:rotate(45deg)}

.footer-heading{
  margin:0 0 14px;
  font-family:var(--font-cond);font-weight:600;
  font-size:var(--fs-1);letter-spacing:.2em;text-transform:uppercase;
  color:var(--apricot);
}
.footer-list li{margin-bottom:9px;font-size:var(--fs-2)}
.footer-list a{
  color:rgba(253,246,236,.82);text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .16s ease,border-color .16s ease;
}
.footer-list a:hover{color:var(--apricot);border-bottom-color:var(--apricot)}
.footer-list--plain li{
  font-family:var(--font-mono);font-size:var(--fs-1);
  letter-spacing:.02em;line-height:1.7;color:rgba(253,246,236,.66);
  word-break:break-word;
}
.footer-track{
  height:14px;
  background-color:var(--ink-soft);
  background-image:repeating-linear-gradient(-45deg,var(--apricot) 0 10px,transparent 10px 26px);
  border-top:1px solid rgba(253,246,236,.14);
  border-bottom:1px solid rgba(253,246,236,.14);
}
.footer-base{
  max-width:var(--wrap);
  margin:0 auto;
  padding:18px var(--gutter) clamp(28px,4vw,40px);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-legal{
  margin:0;font-size:var(--fs-1);letter-spacing:.05em;color:rgba(253,246,236,.6);
}
.footer-badge{
  width:38px;height:38px;flex:0 0 auto;
  display:grid;place-items:center;
  border:2px solid var(--cyan);color:var(--cyan);
  font-family:var(--font-cond);font-size:.6875rem;letter-spacing:.1em;
  transform:rotate(45deg);
}
.footer-badge span{display:block;transform:rotate(-45deg)}

/* 底部日期滑动带存在时，把页脚深色延伸到信息条之下 */
body.has-date-strip .site-footer{padding-bottom:48px}

/* ---------- 布局容器 ---------- */
.container{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter)}
.container--wide{max-width:var(--wrap-wide)}

.shell{
  display:grid;
  grid-template-columns:var(--rail) minmax(0,1fr);
  gap:clamp(20px,3vw,44px);
  max-width:var(--wrap-wide);
  margin:0 auto;
  padding:clamp(20px,3vw,40px) var(--gutter) 0;
  align-items:start;
}

.rail{
  position:sticky;top:88px;align-self:start;
  border-left:3px solid var(--ink);
  padding-left:16px;
}
.rail__title{
  margin:0 0 12px;
  font-family:var(--font-cond);font-size:var(--fs-1);
  letter-spacing:.2em;text-transform:uppercase;color:var(--gray);
}
.rail__item{
  position:relative;
  padding:10px 0 10px 4px;
  border-bottom:var(--bd-thin);
  font-size:var(--fs-2);
}
.rail__item::before{
  content:"";position:absolute;left:-23px;top:18px;
  width:10px;height:10px;
  background:var(--almond);border:2px solid var(--ink);
}
.rail__item.is-current{font-weight:700;color:var(--ink)}
.rail__item.is-current::before{
  width:15px;height:15px;background:var(--apricot);
  transform:skewX(-6deg);
}
.rail__meta{
  display:block;
  font-family:var(--font-mono);font-size:var(--fs-1);
  color:var(--gray);letter-spacing:.02em;
}

/* ---------- 面包屑 ---------- */
.breadcrumb{margin:0 0 clamp(16px,3vw,28px);font-size:var(--fs-1)}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb__list li{
  display:flex;align-items:center;gap:8px;
  font-family:var(--font-cond);letter-spacing:.12em;text-transform:uppercase;
  color:var(--gray);
}
.breadcrumb__list li+li::before{content:"/";color:var(--line);font-family:var(--font-cond)}
.breadcrumb a{color:var(--gray);text-decoration:none}
.breadcrumb a:hover{color:var(--apricot-deep)}

/* ---------- 章节 ---------- */
.section{padding:clamp(32px,5vw,64px) 0;border-top:var(--bd-thin)}
.section:first-of-type{border-top:0}
.section__head{
  display:flex;flex-wrap:wrap;align-items:baseline;
  gap:clamp(10px,2vw,24px);
  margin-bottom:clamp(18px,3vw,32px);
}
.section__num{
  font-family:var(--font-cond);font-weight:600;
  font-size:clamp(2.6rem,7vw,5rem);line-height:.85;
  letter-spacing:-.02em;color:var(--apricot);
}
.section__num--ink{color:var(--ink)}
.section__num--cyan{color:var(--cyan-deep)}
.section__title{font-size:var(--fs-5)}
.section__sub{
  margin-left:auto;font-size:var(--fs-2);color:var(--gray);
}
.eyebrow{
  display:inline-block;
  margin-bottom:12px;padding-left:8px;
  border-left:3px solid var(--apricot);
  font-family:var(--font-cond);font-size:var(--fs-1);
  letter-spacing:.2em;text-transform:uppercase;color:var(--apricot-deep);
}
.lede{
  max-width:62ch;
  font-size:var(--fs-3);line-height:1.7;color:var(--ink-soft);
}

.rule{height:3px;background:var(--ink);border:0;margin:0}
.rule--track{
  height:12px;background-color:var(--sand);
  background-image:repeating-linear-gradient(-45deg,var(--apricot) 0 10px,transparent 10px 22px);
}

.slash{
  display:inline-block;
  padding:2px 14px;
  background:var(--apricot);color:var(--ink);
  transform:skewX(-6deg);
}
.slash>span{display:inline-block;transform:skewX(6deg)}

/* ---------- 网格 ---------- */
.grid{display:grid;gap:clamp(16px,2.5vw,28px)}
.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--7-5{grid-template-columns:7fr 5fr}

/* ---------- 图片容器基础规则 ---------- */
.media{
  position:relative;overflow:hidden;
  background:var(--ink-soft);
  border:var(--bd);
  box-shadow:var(--shadow-soft);
}
.media img,.media video{
  width:100%;height:100%;object-fit:cover;
  filter:saturate(1.03) contrast(1.05);
}
.media::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:var(--apricot);opacity:.22;
  mix-blend-mode:multiply;pointer-events:none;
}
.media--16x9{aspect-ratio:16/9}
.media--4x3{aspect-ratio:4/3}
.media--3x2{aspect-ratio:3/2}
.media--1x1{aspect-ratio:1/1}
.media--grain::before{
  content:"";position:absolute;inset:0;z-index:2;pointer-events:none;
  background-image:radial-gradient(rgba(20,32,26,.28) 1px,transparent 1px);
  background-size:3px 3px;opacity:.5;
}
.media__caption{
  position:absolute;left:0;bottom:0;z-index:3;
  padding:6px 12px;background:var(--ink);color:var(--almond);
  font-size:var(--fs-1);letter-spacing:.06em;
}

/* ---------- 卡片 ---------- */
.card{
  padding:clamp(16px,2.4vw,24px);
  background:var(--almond);
  border:var(--bd);
  box-shadow:var(--shadow-soft);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{
  transform:translate(-4px,-4px);
  box-shadow:12px 12px 0 var(--ink);
  border-color:var(--apricot-deep);
}
.card--soft{
  background:var(--sand);border:var(--bd-thin);box-shadow:none;
}
.card--soft:hover{transform:none;box-shadow:4px 4px 0 var(--line);border-color:var(--apricot)}
.card--dark{background:var(--ink);border-color:var(--ink);color:rgba(253,246,236,.85)}
.card--dark:hover{box-shadow:12px 12px 0 rgba(31,61,43,.35)}
.card__head{
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;margin-bottom:10px;
}
.card__title{font-size:var(--fs-4)}
.card__meta{
  font-family:var(--font-cond);font-size:var(--fs-1);
  letter-spacing:.12em;text-transform:uppercase;color:var(--gray);
}
.card--dark .card__meta{color:var(--cyan)}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 9px;
  border:2px solid var(--ink);background:var(--sand);color:var(--ink);
  font-family:var(--font-cond);font-size:var(--fs-1);
  letter-spacing:.1em;text-transform:uppercase;
}
.tag--cyan{background:var(--cyan);color:var(--board)}
.tag--ochre{background:var(--ochre);border-color:var(--ochre);color:var(--almond)}
.tag--line{background:transparent;border:1px solid var(--line);color:var(--gray)}
.tag--pulse{animation:xy-pulse 1.6s ease-in-out infinite}
@keyframes xy-pulse{0%,100%{opacity:1}50%{opacity:.42}}

/* ---------- 记分牌数据 ---------- */
.stat{display:flex;flex-direction:column;gap:2px}
.stat__value{
  font-family:var(--font-mono);font-weight:700;
  font-size:clamp(1.9rem,5vw,3.25rem);line-height:1;
  letter-spacing:-.02em;color:var(--ink);
}
.stat__label{
  font-family:var(--font-cond);font-size:var(--fs-1);
  letter-spacing:.14em;text-transform:uppercase;color:var(--gray);
}
.score{
  font-family:var(--font-mono);font-weight:700;
  font-size:clamp(1.75rem,4vw,2.75rem);line-height:1;color:var(--ink);
}
.score--live{color:var(--cyan-deep)}

/* ---------- 表格 ---------- */
.data-table{border:var(--bd-thin);font-size:var(--fs-2)}
.data-table th,.data-table td{
  padding:10px 12px;text-align:left;border-bottom:var(--bd-thin);
}
.data-table thead th{
  background:var(--ink);color:var(--almond);border-bottom:0;
  font-family:var(--font-cond);font-size:var(--fs-1);
  letter-spacing:.12em;text-transform:uppercase;font-weight:600;
}
.data-table tbody tr:nth-child(even){background:var(--sand)}
.data-table tbody tr:hover{background:rgba(242,140,40,.14)}
.data-table td.num{font-family:var(--font-mono);font-weight:700}
.data-table tbody tr:last-child td{border-bottom:0}

/* ---------- 筛选 ---------- */
.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.filter-bar--sticky{
  position:sticky;top:62px;z-index:30;
  padding:10px 0;
  background:var(--almond);
  border-bottom:var(--bd-thin);
}
.filter-btn{
  position:relative;overflow:hidden;
  padding:6px 14px;
  border:2px solid var(--ink);background:var(--almond);color:var(--ink);
  font-family:var(--font-cond);font-size:var(--fs-1);
  letter-spacing:.12em;text-transform:uppercase;
  cursor:pointer;
  transition:color .18s ease,box-shadow .18s ease;
}
.filter-btn::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:var(--apricot);
  transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease;
}
.filter-btn:hover::before{transform:scaleX(1)}
.filter-btn[aria-pressed="true"]{
  background:var(--apricot);box-shadow:3px 3px 0 var(--ink);
}
.filter-btn[aria-pressed="true"]::before{transform:scaleX(1)}

/* ---------- 长文 ---------- */
.prose{max-width:72ch}
.prose h2{font-size:var(--fs-5);margin:1.6em 0 .5em}
.prose h3{font-size:var(--fs-4);margin:1.4em 0 .4em}
.prose p{margin:0 0 .9em}
.prose ul{margin:0 0 1.1em}
.prose ul li{position:relative;padding-left:20px;margin-bottom:.45em}
.prose ul li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:10px;height:3px;background:var(--apricot);
}
.prose blockquote{
  margin:1.4em 0;padding:12px 18px;
  border-left:4px solid var(--apricot);background:var(--sand);
  font-family:var(--font-display);font-style:italic;font-size:var(--fs-3);
}
.prose a{color:var(--apricot-deep)}

/* ---------- 锚点导航 ---------- */
.anchor-nav{position:sticky;top:88px;font-size:var(--fs-2)}
.anchor-nav__link{
  display:block;padding:6px 10px;
  border-left:3px solid var(--line);
  color:var(--gray);text-decoration:none;
  transition:color .16s ease,border-color .16s ease,background-color .16s ease;
}
.anchor-nav__link:hover{color:var(--ink)}
.anchor-nav__link.is-active{
  color:var(--ink);font-weight:700;border-left-color:var(--apricot);
  background:linear-gradient(90deg,rgba(242,140,40,.18),transparent);
}

/* ---------- 底部日期滑动带 ---------- */
.date-strip{
  position:fixed;left:0;right:0;bottom:0;z-index:55;
  background:var(--ink);color:var(--almond);
  border-top:3px solid var(--apricot);
}
.date-strip__bar{
  display:flex;align-items:center;gap:12px;
  height:48px;padding:0 var(--gutter);
}
.date-strip__label{
  font-family:var(--font-cond);font-size:var(--fs-1);
  letter-spacing:.18em;text-transform:uppercase;color:rgba(253,246,236,.7);
}
.date-strip__toggle{
  margin-left:auto;padding:5px 12px;cursor:pointer;
  border:1px solid rgba(253,246,236,.4);background:transparent;color:var(--almond);
  font-family:var(--font-cond);font-size:var(--fs-1);
  letter-spacing:.14em;text-transform:uppercase;
  transition:background-color .16s ease,color .16s ease,border-color .16s ease;
}
.date-strip__toggle:hover{background:var(--apricot);border-color:var(--apricot);color:var(--ink)}
.date-strip__track{
  display:flex;gap:8px;
  max-height:0;overflow-x:auto;overflow-y:hidden;
  padding:0 var(--gutter);
  opacity:0;
  scroll-snap-type:x proximity;
  transition:max-height .28s ease,opacity .2s ease,padding .2s ease;
}
.date-strip[data-expanded] .date-strip__track{
  max-height:72px;padding-bottom:12px;opacity:1;
}
.date-chip{
  flex:0 0 auto;scroll-snap-align:start;
  padding:6px 12px;cursor:pointer;
  border:1px solid rgba(253,246,236,.35);background:transparent;color:var(--almond);
  font-family:var(--font-cond);font-size:var(--fs-1);
  letter-spacing:.1em;white-space:nowrap;
  transition:background-color .16s ease,color .16s ease,border-color .16s ease;
}
.date-chip:hover{border-color:var(--apricot);color:var(--apricot)}
.date-chip[aria-current="true"]{
  background:var(--apricot);border-color:var(--apricot);
  color:var(--ink);font-weight:700;
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:18px;bottom:78px;z-index:56;
  width:44px;height:44px;
  display:grid;place-items:center;
  background:var(--apricot);color:var(--ink);
  border:2px solid var(--ink);
  box-shadow:3px 3px 0 var(--ink);
  font-family:var(--font-cond);font-size:var(--fs-1);letter-spacing:.06em;
  cursor:pointer;opacity:0;visibility:hidden;
  transition:opacity .2s ease,visibility .2s ease,transform .16s ease,box-shadow .16s ease;
}
.to-top.is-visible{opacity:1;visibility:visible}
.to-top:hover{transform:translate(-2px,-2px);box-shadow:5px 5px 0 var(--ink)}

/* ---------- 显现动画 ---------- */
[data-reveal]{transition:opacity .55s ease,transform .55s cubic-bezier(.2,.7,.3,1)}
[data-reveal].reveal-pending{opacity:0;transform:translateY(24px)}
[data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;row-gap:32px}
  .footer-col--brand{grid-column:1 / -1}
}
@media (max-width:1023px){
  .shell{grid-template-columns:minmax(0,1fr);padding-top:24px}
  .rail{position:static;border-left:0;border-top:3px solid var(--ink);padding:14px 0 0}
  .rail__list{display:flex;gap:10px;overflow-x:auto;padding-bottom:6px}
  .rail__item{
    flex:0 0 auto;padding:8px 12px;
    border:1px solid var(--line);background:var(--sand);
  }
  .rail__item::before{display:none}
  .rail__item.is-current{background:var(--apricot);border-color:var(--ink)}
  .filter-bar--sticky{top:56px}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex}
  .main-nav{
    position:absolute;left:0;right:0;top:100%;
    display:block;
    background:var(--ink);
    border-bottom:3px solid var(--apricot);
    max-height:0;overflow:hidden;
    transition:max-height .28s ease;
  }
  .main-nav[data-open]{max-height:min(72vh,520px);overflow-y:auto}
  .main-nav__list{
    flex-direction:column;align-items:stretch;gap:0;
    padding:6px 18px 16px;
  }
  .main-nav__list li{border-bottom:1px solid rgba(253,246,236,.16)}
  .nav-link{
    display:block;padding:13px 2px;
    font-size:1rem;color:var(--almond);
  }
  .nav-link::after{display:none}
  .nav-link:hover{color:var(--apricot)}
  .nav-link[aria-current="page"]{color:var(--apricot)}
  .nav-link[aria-current="page"]::before{
    content:"";display:inline-block;
    width:8px;height:8px;margin-right:10px;
    background:var(--apricot);transform:skewX(-6deg);
  }
  .site-header[data-open]{box-shadow:0 8px 0 rgba(31,61,43,.14)}
  .grid--2,.grid--3,.grid--4,.grid--7-5{grid-template-columns:minmax(0,1fr)}
  .section__sub{margin-left:0;flex-basis:100%}
  .to-top{bottom:64px}
}
@media (max-width:640px){
  .brand__tag{display:none}
  .icon-btn{display:none}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px}
  .footer-col--brand{grid-column:auto}
  .footer-base{flex-direction:column;align-items:flex-start}
  body{background-size:56px 56px}
}
@media (max-width:400px){
  .btn--sm{padding:5px 9px;font-size:.6875rem}
  .brand__name{font-size:1rem}
}

/* ---------- 无障碍与动效降级 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
    transition-delay:0ms!important;
    scroll-behavior:auto!important;
  }
  [data-reveal].reveal-pending{opacity:1;transform:none}
}