/* ============================================================
   亚博赛场 · /assets/site.css
   共享层：重置 / 变量 / 中文排版 / 头部 / 页脚 / 通用组件
   色系：深墨蓝底 + 暖纸白画板 + 高原红土 + 夜场草绿 + 荧光黄绿高亮
   ============================================================ */

/* ---------- 0. 设计变量 ---------- */
:root{
  --ink:#0D1A28;
  --ink-soft:#16273A;
  --ink-line:rgba(217,210,195,.20);
  --paper:#F5F1E8;
  --paper-soft:#EAE4D6;
  --paper-line:#D9D2C3;
  --clay:#A8452E;
  --turf:#1F5C3D;
  --volt:#C7F24E;
  --white:#FFFFFF;
  --sunrise:#E0763C;
  --graphite:#5F6B76;
  --alert:#C93A2B;

  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:"SFMono-Regular","JetBrains Mono",Menlo,Consolas,"Liberation Mono",monospace;

  --skew:-3deg;
  --wrap:1240px;
  --safe:24px;
  --pad:32px;
  --stack-gap:8px;
  --ease:cubic-bezier(.22,.7,.24,1);
  --shadow-1:0 14px 34px -26px rgba(0,0,0,.92);
}
@media (min-width:768px){ :root{ --safe:40px; --pad:48px; } }
@media (min-width:1200px){ :root{ --safe:64px; --pad:64px; --wrap:1280px; } }

/* ---------- 1. 重置 ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
body,h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd,ul,ol{ margin:0; }
ul,ol{ padding:0; list-style:none; }
img,svg,video{ display:block; max-width:100%; }
button{ font:inherit; color:inherit; background:none; border:0; cursor:pointer; }
a{ color:inherit; text-decoration:none; }
table{ border-collapse:collapse; width:100%; }
:focus-visible{ outline:2px solid var(--volt); outline-offset:3px; }
::selection{ background:var(--volt); color:var(--ink); }

/* ---------- 2. 基础版式 ---------- */
body{
  background:var(--ink);
  color:var(--paper);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

.wrap{ width:100%; max-width:var(--wrap); margin:0 auto; padding-left:var(--safe); padding-right:var(--safe); }
.wrap--narrow{ max-width:820px; }
.wrap--wide{ max-width:1480px; }

.num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum" 1;
  letter-spacing:.02em;
}

.t-display{
  display:block;
  font-size:clamp(40px,7vw,96px);
  line-height:1.02;
  font-weight:800;
  letter-spacing:-.02em;
  transform:skewX(var(--skew));
  transform-origin:left center;
}
.t-section{
  display:block;
  font-size:clamp(28px,4vw,44px);
  line-height:1.12;
  font-weight:800;
  letter-spacing:-.01em;
  transform:skewX(var(--skew));
  transform-origin:left center;
}
.t-sub{
  display:block;
  font-size:clamp(19px,2vw,24px);
  line-height:1.3;
  font-weight:700;
}
.lead{
  font-size:17px;
  line-height:1.8;
  max-width:36em;
  color:var(--graphite);
}
.panel--ink .lead,
.panel--turf .panel--clay .lead{ color:rgba(245,241,232,.78); }

.t-annot{
  font-family:var(--font-mono);
  font-size:12px;
  line-height:1.5;
  letter-spacing:.16em;
  color:var(--graphite);
}
.t-annot--v{
  writing-mode:vertical-rl;
  text-orientation:mixed;
  letter-spacing:.3em;
}
.panel--ink .t-annot,
.panel--turf .t-annot,
.panel--clay .t-annot{ color:rgba(245,241,232,.62); }

.mark{
  background:var(--volt);
  color:var(--ink);
  font-weight:600;
  padding:.06em .32em;
  -webkit-box-decoration-break:clone;
  box-decoration-break:clone;
}

.prose{
  font-size:15px;
  line-height:1.75;
  max-width:36em;
  color:var(--ink);
}
.prose p + p{ margin-top:1em; }
.prose .t-sub{ margin-top:1.8em; margin-bottom:.6em; }
.prose .t-sub:first-child{ margin-top:0; }
.panel--ink .prose{ color:rgba(245,241,232,.82); }

/* ---------- 3. 堆叠面板 ---------- */
.panel-stack{
  display:grid;
  gap:var(--stack-gap);
  background:var(--ink);
}
.panel{
  position:relative;
  background:var(--paper);
  color:var(--ink);
  padding:var(--pad);
  box-shadow:var(--shadow-1);
}
.panel--paper{ background:var(--paper-soft); color:var(--ink); }
.panel--ink{ background:var(--ink); color:var(--paper); }
.panel--turf{ background:var(--turf); color:var(--paper); }
.panel--clay{ background:var(--clay); color:var(--white); }

.panel--dense{ padding-top:calc(var(--pad) / 2); padding-bottom:calc(var(--pad) / 2); }
.panel--grain::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    repeating-linear-gradient(90deg, rgba(13,26,40,.030) 0 1px, transparent 1px 4px),
    repeating-linear-gradient(0deg, rgba(13,26,40,.022) 0 1px, transparent 1px 5px);
}

/* ---------- 4. 网格 ---------- */
.grid{ display:grid; gap:var(--pad); }
.grid--tight{ gap:16px; }
.grid--2,.grid--3,.grid--4{ grid-template-columns:1fr; }
@media (min-width:768px){
  .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(2,minmax(0,1fr)); }
}
@media (min-width:1100px){
  .grid--4{ grid-template-columns:repeat(4,minmax(0,1fr)); }
}

/* ---------- 5. 章节点与标签 ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.18em;
  color:var(--clay);
}
.eyebrow::before{
  content:"";
  display:block;
  width:22px;
  height:1px;
  background:currentColor;
}
.panel--ink .eyebrow,
.panel--turf .eyebrow{ color:var(--sunrise); }
.panel--clay .eyebrow{ color:var(--white); }

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  padding:4px 8px;
  background:var(--ink);
  color:var(--paper);
  white-space:nowrap;
}
.tag--clay{ background:var(--clay); color:var(--white); }
.tag--turf{ background:var(--turf); color:var(--white); }
.tag--volt{ background:var(--volt); color:var(--ink); }
.tag--alert{ background:var(--alert); color:var(--white); }
.tag--ghost{ background:transparent; border:1px solid currentColor; color:inherit; }

.rule{ height:1px; background:var(--paper-line); border:0; }
.panel--ink .rule,
.panel--turf .rule,
.panel--clay .rule{ background:var(--ink-line); }

.note{
  font-size:12px;
  line-height:1.7;
  letter-spacing:.04em;
  color:var(--graphite);
}
.panel--ink .note,
.panel--turf .note,
.panel--clay .note{ color:rgba(245,241,232,.6); }

/* ---------- 6. 按钮与链接 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 20px;
  font-size:14px;
  font-weight:600;
  letter-spacing:.06em;
  background:var(--ink);
  color:var(--paper);
  border:1px solid transparent;
  transform:skewX(var(--skew));
  transition:background-color .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease), transform .18s var(--ease);
}
.btn:hover{ background:var(--clay); color:var(--white); transform:skewX(var(--skew)) translateY(-2px); }
.btn--volt{ background:var(--volt); color:var(--ink); }
.btn--volt:hover{ background:var(--white); color:var(--ink); }
.btn--ghost{ background:transparent; border-color:rgba(245,241,232,.5); color:var(--paper); }
.btn--ghost:hover{ background:var(--paper); border-color:var(--paper); color:var(--ink); }
.btn--sm{ padding:9px 14px; font-size:13px; }

.link{
  text-decoration:underline;
  text-underline-offset:4px;
  text-decoration-thickness:1px;
  text-decoration-color:rgba(95,107,118,.6);
  transition:color .18s var(--ease), text-decoration-color .18s var(--ease);
}
.link:hover{ color:var(--clay); text-decoration-color:var(--clay); }
.panel--ink .link:hover,
.panel--turf .link:hover{ color:var(--volt); text-decoration-color:var(--volt); }

/* ---------- 7. 章节头 / 面包屑 ---------- */
.section-head{ display:grid; gap:12px; margin-bottom:var(--pad); }
.section-head__row{
  display:flex;
  align-items:baseline;
  gap:16px;
  flex-wrap:wrap;
}
.section-head__line{
  flex:1 1 40px;
  min-width:40px;
  height:1px;
  background:var(--paper-line);
}
.panel--ink .section-head__line,
.panel--turf .section-head__line,
.panel--clay .section-head__line{ background:var(--ink-line); }

.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--graphite);
}
.crumbs a:hover{ color:var(--clay); }
.crumbs__sep{ opacity:.5; }
.crumbs [aria-current="page"]{ color:var(--ink); }
.panel--ink .crumbs,
.panel--turf .crumbs{ color:rgba(245,241,232,.55); }
.panel--ink .crumbs [aria-current="page"],
.panel--turf .crumbs [aria-current="page"]{ color:var(--paper); }

/* ---------- 8. 数据表 ---------- */
.table-wrap{
  overflow-x:auto;
  border:1px solid var(--paper-line);
  background:var(--white);
  -webkit-overflow-scrolling:touch;
}
.table{ min-width:640px; font-size:14px; }
.table caption{
  caption-side:bottom;
  text-align:left;
  padding:10px 0 0;
  font-size:12px;
  letter-spacing:.04em;
  color:var(--graphite);
}
.table th,
.table td{
  padding:10px 14px;
  text-align:left;
  white-space:nowrap;
  border-bottom:1px solid var(--paper-line);
}
.table thead th{
  background:var(--turf);
  color:var(--white);
  font-size:12px;
  font-weight:600;
  letter-spacing:.1em;
}
.table td.num,
.table th.num{ font-family:var(--font-mono); font-variant-numeric:tabular-nums; text-align:right; }
.table tbody tr:hover{ background:rgba(199,242,78,.18); }
.table tbody tr.is-alert{ box-shadow:inset 3px 0 0 var(--alert); }

/* ---------- 9. 比分卡 ---------- */
.scorecard{
  position:relative;
  background:var(--white);
  color:var(--ink);
  border:1px solid var(--paper-line);
  padding:20px;
  transition:transform .2s var(--ease), box-shadow .2s var(--ease);
}
.scorecard:hover,
.scorecard:focus-within{
  transform:translateY(-4px);
  box-shadow:0 16px 30px -22px rgba(13,26,40,.95);
}
.scorecard__row{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:16px;
}
.scorecard__score{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(26px,4vw,34px);
  font-weight:700;
  letter-spacing:-.01em;
}
.scorecard__foot{
  max-height:0;
  opacity:0;
  overflow:hidden;
  margin-top:0;
  font-size:12px;
  letter-spacing:.04em;
  color:var(--graphite);
  transition:max-height .28s var(--ease), opacity .28s var(--ease), margin-top .28s var(--ease), padding-top .28s var(--ease);
}
.scorecard:hover .scorecard__foot,
.scorecard:focus-within .scorecard__foot{
  max-height:96px;
  opacity:1;
  margin-top:12px;
  padding-top:10px;
  border-top:1px solid var(--paper-line);
}

/* ---------- 10. 图片容器基础规则 ---------- */
.media{ position:relative; display:block; }
.media__frame{
  position:relative;
  width:100%;
  height:0;
  padding-bottom:56.25%;
  overflow:hidden;
  background:linear-gradient(160deg,#1b2d43,#0D1A28);
}
.media--21x9 .media__frame{ padding-bottom:42.86%; }
.media--4x3 .media__frame{ padding-bottom:75%; }
.media--3x4 .media__frame{ padding-bottom:133.33%; }
.media--1x1 .media__frame{ padding-bottom:100%; }
.media__frame > img,
.media__frame > picture,
.media__frame > svg,
.media__frame > video{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}
.media--empty .media__frame::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    repeating-linear-gradient(0deg, rgba(245,241,232,.07) 0 1px, transparent 1px 28px),
    repeating-linear-gradient(90deg, rgba(245,241,232,.07) 0 1px, transparent 1px 28px);
}
.media--empty .media__frame::before{
  content:"";
  position:absolute;
  left:16px;
  bottom:16px;
  width:32px;
  height:32px;
  border-left:1px solid var(--volt);
  border-bottom:1px solid var(--volt);
  z-index:1;
}
.media__cap{
  margin-top:8px;
  font-size:12px;
  line-height:1.6;
  letter-spacing:.04em;
  color:var(--graphite);
}
.panel--ink .media__cap,
.panel--turf .media__cap{ color:rgba(245,241,232,.6); }

/* ---------- 11. 章节目录 ---------- */
.toc{
  position:sticky;
  top:96px;
  align-self:start;
}
.toc__title{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.18em;
  color:var(--graphite);
  margin-bottom:14px;
}
.toc__list{
  display:flex;
  flex-direction:column;
  gap:2px;
  border-left:1px solid var(--paper-line);
}
.toc__link{
  display:grid;
  grid-template-columns:34px 1fr;
  gap:8px;
  align-items:baseline;
  margin-left:-1px;
  padding:8px 10px;
  font-size:13px;
  color:var(--graphite);
  border-left:2px solid transparent;
  transition:color .18s var(--ease), border-color .18s var(--ease), background-color .18s var(--ease);
}
.toc__link:hover{ color:var(--ink); background:rgba(217,210,195,.4); }
.toc__link[aria-current="true"]{
  color:var(--ink);
  border-left-color:var(--clay);
  background:rgba(199,242,78,.22);
}
.toc__num{ font-family:var(--font-mono); font-size:11px; letter-spacing:.08em; opacity:.85; }
.panel--ink .toc__list{ border-left-color:var(--ink-line); }
.panel--ink .toc__link{ color:rgba(245,241,232,.55); }
.panel--ink .toc__link:hover{ color:var(--paper); background:rgba(245,241,232,.06); }
.panel--ink .toc__link[aria-current="true"]{
  color:var(--paper);
  border-left-color:var(--volt);
  background:rgba(199,242,78,.14);
}

/* ---------- 12. 头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--ink);
  border-bottom:1px solid var(--ink-line);
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:1px;
  background-image:repeating-linear-gradient(90deg, rgba(245,241,232,.30) 0 8px, transparent 8px 40px);
}

.skip-link{
  position:absolute;
  left:12px;
  top:-72px;
  z-index:120;
  padding:10px 16px;
  background:var(--volt);
  color:var(--ink);
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  transition:top .18s var(--ease);
}
.skip-link:focus{ top:10px; }

.site-header__inner{
  display:grid;
  grid-template-columns:1fr auto;
  align-items:center;
  gap:12px 24px;
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:12px var(--safe);
}

.brand{
  grid-column:1;
  grid-row:1;
  display:flex;
  align-items:baseline;
  gap:10px;
  min-width:0;
}
.brand__mark{
  font-size:20px;
  font-weight:800;
  letter-spacing:.06em;
  color:var(--paper);
  transform:skewX(var(--skew));
}
.brand__season{
  font-size:12px;
  font-weight:700;
  letter-spacing:.08em;
  padding:2px 6px;
  background:var(--volt);
  color:var(--ink);
}
.brand__tagline{
  display:none;
  padding-left:12px;
  border-left:1px solid var(--ink-line);
  font-size:12px;
  letter-spacing:.08em;
  color:rgba(245,241,232,.55);
  white-space:nowrap;
}
@media (min-width:1100px){ .brand__tagline{ display:inline-block; } }

.site-nav{
  grid-column:1 / -1;
  grid-row:2;
  display:none;
}
.site-nav[data-open]{ display:block; }
.site-nav__list{
  display:flex;
  flex-direction:column;
}
.site-nav__link{
  position:relative;
  display:block;
  padding:12px 2px;
  font-size:15px;
  letter-spacing:.04em;
  color:rgba(245,241,232,.72);
  border-bottom:1px solid var(--ink-line);
  transition:color .18s var(--ease);
}
.site-nav__link::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:2px;
  background:var(--clay);
  transform:scaleX(0);
  transform-origin:0 50%;
  transition:transform .22s var(--ease), background-color .18s var(--ease);
}
.site-nav__link:hover{ color:var(--paper); }
.site-nav__link[aria-current="page"]{
  color:var(--paper);
  border-left:3px solid var(--clay);
  padding-left:12px;
}

.site-tools{
  grid-column:2;
  grid-row:1;
  justify-self:end;
  display:flex;
  align-items:center;
  gap:12px;
}
.site-tools__switch{
  display:none;
  align-items:center;
  gap:8px;
  padding:8px 2px;
  font-size:13px;
  letter-spacing:.06em;
  color:rgba(245,241,232,.7);
  border-bottom:1px solid transparent;
  transition:color .18s var(--ease), border-color .18s var(--ease);
}
.site-tools__switch::before{
  content:"";
  display:block;
  width:14px;
  height:1px;
  background:var(--sunrise);
}
.site-tools__switch:hover{ color:var(--paper); border-bottom-color:var(--sunrise); }
@media (min-width:640px){ .site-tools__switch{ display:inline-flex; } }

.nav-toggle{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 12px;
  font-size:13px;
  letter-spacing:.06em;
  color:var(--paper);
  border:1px solid var(--ink-line);
  transition:border-color .18s var(--ease), background-color .18s var(--ease);
}
.nav-toggle:hover{ border-color:var(--paper); }
.nav-toggle__bars{
  position:relative;
  display:block;
  width:16px;
  height:11px;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  height:1.5px;
  background:currentColor;
  transition:transform .22s var(--ease), top .22s var(--ease), bottom .22s var(--ease);
}
.nav-toggle__bars::before{ top:0; }
.nav-toggle__bars::after{ bottom:0; }
.nav-toggle[aria-expanded="true"]{ background:rgba(199,242,78,.12); border-color:var(--volt); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{ top:4.5px; transform:rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{ bottom:5px; transform:rotate(-45deg); }

@media (min-width:900px){
  .site-header__inner{
    grid-template-columns:auto 1fr auto;
    padding:14px var(--safe);
  }
  .site-nav{
    grid-column:2;
    grid-row:1;
    display:block;
    justify-self:end;
  }
  .site-nav__list{ flex-direction:row; flex-wrap:wrap; gap:26px; justify-content:flex-end; }
  .site-nav__link{
    padding:6px 0;
    font-size:14px;
    border-bottom:0;
  }
  .site-nav__link[aria-current="page"]{
    color:var(--white);
    border-left:0;
    padding-left:0;
  }
  .site-nav__link:hover::after{ transform:scaleX(1); background:rgba(217,210,195,.5); }
  .site-nav__link[aria-current="page"]::after{ transform:scaleX(1); background:var(--clay); }
  .site-tools{ grid-column:3; grid-row:1; }
  .nav-toggle{ display:none; }
}

@media (max-width:479px){
  .brand__mark{ font-size:17px; }
  .brand__season{ font-size:11px; padding:1px 5px; }
  .nav-toggle{ padding:10px; }
  .nav-toggle__text{ display:none; }
  .btn--sm{ padding:9px 12px; font-size:12px; letter-spacing:.02em; }
}

/* ---------- 13. 页脚 ---------- */
.site-footer{
  margin-top:0;
  background:var(--ink);
  color:var(--paper);
  border-top:1px solid var(--ink-line);
}
.site-footer__inner{
  display:grid;
  grid-template-columns:1fr;
  gap:40px;
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:var(--pad) var(--safe);
}
.site-footer__brand{ display:flex; flex-wrap:wrap; align-items:baseline; gap:10px; }
.site-footer__mark{
  font-size:22px;
  font-weight:800;
  letter-spacing:.06em;
  transform:skewX(var(--skew));
}
.site-footer__season{
  font-size:12px;
  font-weight:700;
  padding:2px 6px;
  background:var(--volt);
  color:var(--ink);
}
.site-footer__tagline{
  flex:0 0 100%;
  font-size:12px;
  letter-spacing:.08em;
  color:rgba(245,241,232,.55);
}
.site-footer__cols{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
}
@media (min-width:520px){ .site-footer__cols{ grid-template-columns:repeat(3,minmax(0,1fr)); } }

.foot-col__title{
  margin-bottom:14px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.18em;
  color:var(--sunrise);
}
.foot-list li + li{ margin-top:8px; }
.foot-list a{
  font-size:14px;
  color:rgba(245,241,232,.78);
  border-bottom:1px solid transparent;
  transition:color .18s var(--ease), border-color .18s var(--ease);
}
.foot-list a:hover{ color:var(--paper); border-bottom-color:var(--sunrise); }

.foot-list--contact li{
  display:grid;
  grid-template-columns:44px 1fr;
  gap:10px;
  align-items:baseline;
  font-size:13px;
  line-height:1.7;
  color:rgba(245,241,232,.78);
}
.foot-list__k{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:rgba(245,241,232,.5);
}
.foot-note{
  margin-top:16px;
  max-width:34em;
  font-size:12px;
  line-height:1.7;
  color:rgba(245,241,232,.5);
}

.site-footer__bar{ border-top:1px solid var(--ink-line); }
.site-footer__bar-inner{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px 24px;
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:20px var(--safe);
  font-size:12px;
  line-height:1.7;
  color:rgba(245,241,232,.5);
}
.site-footer__legal{ max-width:52em; }
.site-footer__meta{ display:flex; flex-wrap:wrap; gap:8px 16px; }
.site-footer__icp{ color:rgba(245,241,232,.62); }

@media (min-width:768px){
  .site-footer__inner{ grid-template-columns:minmax(200px,1fr) 2fr; gap:40px 48px; }
  .site-footer__cols{ grid-column:2; }
  .site-footer__contact{ grid-column:1 / -1; }
}
@media (min-width:1024px){
  .site-footer__inner{ grid-template-columns:1.1fr 2.2fr 1.4fr; gap:64px; }
  .site-footer__cols{ grid-column:auto; }
  .site-footer__contact{ grid-column:auto; }
}

/* ---------- 14. 滚动进度 / 返回顶部 ---------- */
.scroll-progress{
  position:fixed;
  top:0;
  left:0;
  right:0;
  height:2px;
  z-index:90;
  pointer-events:none;
  background:transparent;
}
.scroll-progress__bar{
  height:100%;
  width:100%;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--turf),var(--volt));
}

.to-top{
  position:fixed;
  right:16px;
  bottom:16px;
  z-index:70;
  display:grid;
  place-items:center;
  gap:2px;
  width:56px;
  height:56px;
  padding:0;
  background:var(--ink);
  color:var(--paper);
  border:1px solid var(--ink-line);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity .22s var(--ease), transform .22s var(--ease), visibility .22s linear, background-color .18s var(--ease), color .18s var(--ease);
}
.to-top.is-on{ opacity:1; visibility:visible; transform:translateY(0); }
.to-top:hover{ background:var(--clay); border-color:var(--clay); color:var(--white); }
.to-top__tick{
  display:block;
  width:100%;
  height:2px;
  background-image:repeating-linear-gradient(90deg, rgba(245,241,232,.7) 0 2px, transparent 2px 6px);
}
.to-top__txt{ line-height:1; }
@media (min-width:768px){ .to-top{ right:24px; bottom:24px; } }

/* ---------- 15. 动效 ---------- */
.has-js [data-reveal]{
  opacity:0;
  translate:0 16px;
  transition:opacity .55s var(--ease), translate .55s var(--ease);
  transition-delay:calc(var(--i,0) * 120ms);
}
.has-js [data-reveal].is-visible{ opacity:1; translate:0 0; }

@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;
  }
  .has-js [data-reveal]{ opacity:1; translate:none; }
  .scorecard:hover,
  .scorecard:focus-within,
  .btn:hover{ transform:none; }
}