/* ============================================================
   多米体育 · 红蓝电竞中文数据站
   共享样式 /assets/site.css
   ============================================================ */

/* ---------- 1. 设计变量 ---------- */
:root{
  /* 品牌色 · 进攻红 */
  --red:         #E8332A;
  --red-dark:    #C0181F;
  --red-deep:    #7A0E16;
  /* 品牌色 · 数据蓝 */
  --blue:        #1B4DE4;
  --blue-deep:   #0B2A6B;
  /* 底色 */
  --ink:         #0D1117;
  --line:        #C9CFD8;
  --bg:          #F5F6F8;
  --surface:     #FFFFFF;
  --lime:        #B6F03A;
  /* 文本 */
  --text:        #191D24;
  --text-soft:   #4B5563;
  --text-mute:   #6B7484;
  --on-dark:     #E7ECF5;
  --on-dark-mute:#9AA7BE;
  /* 结构 */
  --w-max:       1240px;
  --pad-gutter:  clamp(16px, 4vw, 32px);
  --radius-sm:   8px;
  --radius:      14px;
  --radius-lg:   22px;
  --pill:        999px;
  --grid:        80px;
  /* 阴影 */
  --sh-pod:      0 12px 30px rgba(13,17,23,.10), 0 1px 0 rgba(255,255,255,.85) inset;
  --sh-pod-sm:   0 6px 16px rgba(13,17,23,.13);
  --sh-card:     0 1px 2px rgba(13,17,23,.06);
  /* 字体 */
  --font-head:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:var(--font-head);
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  /* 动效 */
  --ease:cubic-bezier(.2,.7,.2,1);
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{
  background-color:var(--bg);
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
}
body,
h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd,fieldset{margin:0;}
ul,ol{padding:0;list-style:none;}
img,svg,video{display:block;max-width:100%;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
table{border-collapse:collapse;width:100%;}
a{color:inherit;text-decoration:none;}

/* ---------- 3. 蓝图网格底纹 ---------- */
body{
  background:transparent;
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:
    linear-gradient(to right, rgba(13,17,23,.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(13,17,23,.05) 1px, transparent 1px);
  background-size:var(--grid) var(--grid);
  animation:grid-in .48s cubic-bezier(.2,.7,.2,1) both;
}
@keyframes grid-in{
  from{opacity:0;background-position:-80px -80px;}
  to{opacity:1;background-position:0 0;}
}

/* ---------- 4. 中文排版与基础元素 ---------- */
h1,h2,h3,h4,h5{
  font-family:var(--font-head);
  font-weight:900;
  line-height:1.22;
  letter-spacing:-.01em;
  color:var(--ink);
}
h1{font-size:clamp(30px,4.4vw,48px);}
h2{font-size:clamp(23px,3vw,32px);}
h3{font-size:clamp(19px,2vw,24px);}
h4{font-size:17px;}
h5{font-size:15px;}
p{line-height:1.75;}
a{color:var(--blue-deep);transition:color .18s var(--ease);}
a:hover{color:var(--red-dark);}
strong{font-weight:700;color:var(--ink);}
hr{border:0;border-top:1px solid var(--line);margin:0;}

:focus-visible{
  outline:2px solid var(--blue);
  outline-offset:3px;
  border-radius:4px;
}

/* ---------- 5. 无障碍工具 ---------- */
.visually-hidden{
  position:absolute !important;
  width:1px;height:1px;
  margin:-1px;padding:0;
  overflow:hidden;
  clip:rect(0 0 0 0);
  white-space:nowrap;
  border:0;
}
.skip-link{
  position:fixed;
  top:12px;left:50%;
  z-index:300;
  transform:translate(-50%,-180%);
  padding:11px 20px;
  border-radius:var(--pill);
  background:var(--ink);
  color:#fff;
  font-size:14px;
  font-weight:700;
  box-shadow:var(--sh-pod-sm);
  transition:transform .2s var(--ease);
}
.skip-link:focus{transform:translate(-50%,0);color:#fff;}

/* ---------- 6. 滚动进度条 ---------- */
.scroll-progress{
  position:fixed;
  top:0;left:0;
  z-index:250;
  width:100%;height:2px;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--red) 0%,var(--blue) 100%);
  pointer-events:none;
}

/* ---------- 7. 头部 · 悬浮胶囊浮岛 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:70;
  display:flex;
  justify-content:center;
  padding:12px var(--pad-gutter) 10px;
}
.site-header::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:linear-gradient(180deg, rgba(245,246,248,.97) 0%, rgba(245,246,248,.88) 62%, rgba(245,246,248,0) 100%);
}
.header-pod{
  position:relative;
  display:flex;
  align-items:center;
  gap:16px;
  width:100%;
  max-width:var(--w-max);
  padding:8px 10px 8px 16px;
  background:rgba(255,255,255,.94);
  border:1px solid var(--line);
  border-radius:var(--pill);
  box-shadow:var(--sh-pod);
  -webkit-backdrop-filter:blur(12px) saturate(1.4);
  backdrop-filter:blur(12px) saturate(1.4);
  transition:padding .24s var(--ease), box-shadow .24s var(--ease), border-radius .24s var(--ease);
}
.site-header[data-scrolled] .header-pod{
  padding:6px 8px 6px 14px;
  box-shadow:var(--sh-pod-sm);
}
.header-pod::after{
  content:"";
  position:absolute;
  left:18px;bottom:-1px;
  width:26px;height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--red) 0 50%, var(--blue) 50% 100%);
  opacity:.9;
}

/* 品牌 */
.brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  flex:0 0 auto;
  min-width:0;
  color:var(--ink);
  border-radius:var(--radius-sm);
}
.brand:hover{color:var(--ink);}
.brand-mark{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:3px;
  width:26px;height:26px;
  flex:0 0 auto;
}
.brand-mark i{
  display:block;
  border-radius:3px;
  background:var(--red);
  transform:skewX(-8deg);
}
.brand-mark i:last-child{background:var(--blue);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0;}
.brand-name{
  font-family:var(--font-head);
  font-weight:900;
  font-size:17px;
  letter-spacing:.02em;
  color:var(--ink);
  white-space:nowrap;
}
.brand-sub{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--text-mute);
  white-space:nowrap;
}

/* 导航 */
.nav{
  display:flex;
  align-items:center;
  gap:14px;
  margin-left:auto;
  min-width:0;
}
.nav-list{
  display:flex;
  align-items:center;
  min-width:0;
}
.nav-list li{display:flex;align-items:center;}
.nav-list li + li{border-left:1px solid var(--line);}
.nav-list a{
  display:flex;
  align-items:center;
  padding:9px 13px;
  border-radius:var(--pill);
  font-size:14px;
  font-weight:500;
  color:var(--text);
  white-space:nowrap;
  transition:background-color .18s var(--ease), color .18s var(--ease);
}
.nav-list a:hover{background:rgba(27,77,228,.08);color:var(--blue-deep);}
.nav-list a[aria-current="page"]{
  color:var(--ink);
  font-weight:700;
  background:linear-gradient(100deg, rgba(232,51,42,.13), rgba(27,77,228,.13));
  box-shadow:inset 0 0 0 1px rgba(13,17,23,.06);
}
.nav-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:10px 18px;
  border-radius:var(--pill);
  background:linear-gradient(100deg, var(--red) 0%, #FF5A3C 100%);
  color:#fff;
  font-size:14px;
  font-weight:700;
  white-space:nowrap;
  box-shadow:0 4px 12px rgba(232,51,42,.28);
  transition:transform .18s var(--ease), box-shadow .18s var(--ease), color .18s var(--ease);
}
.nav-cta:hover{
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 8px 18px rgba(232,51,42,.34);
}
.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 15px;
  border:1px solid var(--line);
  border-radius:var(--pill);
  background:var(--surface);
  color:var(--ink);
  font-size:13px;
  font-weight:700;
  transition:background-color .18s var(--ease), border-color .18s var(--ease), color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--red);}
.nav-toggle[aria-expanded="true"]{background:var(--ink);border-color:var(--ink);color:#fff;}
.nav-toggle-bars{display:inline-flex;flex-direction:column;gap:4px;width:16px;}
.nav-toggle-bars i{
  display:block;
  height:1.5px;
  border-radius:2px;
  background:currentColor;
  transition:transform .2s var(--ease), opacity .2s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:nth-child(1){transform:translateY(5.5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:nth-child(3){transform:translateY(-5.5px) rotate(-45deg);}
.nav-toggle-text{font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;}

/* ---------- 8. 布局容器 ---------- */
.wrap{
  width:100%;
  max-width:var(--w-max);
  margin-inline:auto;
  padding-inline:var(--pad-gutter);
}
.section{padding-block:clamp(40px,6vw,84px);}
.section--tight{padding-block:clamp(22px,3vw,40px);}
.section--deck{
  background:var(--ink);
  color:var(--on-dark);
  position:relative;
  overflow:hidden;
}
.section--deck::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(to right, rgba(201,207,216,.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(201,207,216,.08) 1px, transparent 1px);
  background-size:var(--grid) var(--grid);
}
.section--deck > *{position:relative;z-index:1;}
.section--deck h2,
.section--deck h3{color:#fff;}

.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:16px 24px;
  padding-bottom:16px;
  margin-bottom:28px;
  border-bottom:1px solid var(--line);
}
.section--deck .section-head{border-bottom-color:rgba(201,207,216,.22);}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  margin-bottom:10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--text-mute);
}
.eyebrow::before{
  content:"";
  width:18px;height:2px;
  border-radius:2px;
  background:var(--red);
}
.section--deck .eyebrow{color:var(--on-dark-mute);}

/* ---------- 9. 十二栏非对称网格 ---------- */
.grid-12{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:clamp(16px,1.8vw,24px);
}
.col-main{grid-column:span 7;}
.col-aside{grid-column:span 3;}
.col-index{grid-column:span 2;}
.col-half{grid-column:span 6;}
.col-full{grid-column:span 12;}

/* ---------- 10. 面包屑 ---------- */
.breadcrumb{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
}
.breadcrumb ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  color:var(--text-mute);
}
.breadcrumb li{display:flex;align-items:center;}
.breadcrumb li + li::before{
  content:"/";
  margin:0 10px;
  color:var(--line);
}
.breadcrumb a{color:var(--text-mute);}
.breadcrumb a:hover{color:var(--red-dark);}
.breadcrumb [aria-current="page"]{color:var(--ink);font-weight:600;}

/* ---------- 11. 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 24px;
  border:1px solid transparent;
  border-radius:var(--pill);
  font-family:var(--font-head);
  font-size:15px;
  font-weight:700;
  line-height:1;
  text-align:center;
  white-space:nowrap;
  cursor:pointer;
  transition:transform .18s var(--ease), box-shadow .18s var(--ease),
             background-color .18s var(--ease), border-color .18s var(--ease), color .18s var(--ease);
}
.btn:hover{transform:translateY(-2px);}
.btn--red{background:var(--red);color:#fff;box-shadow:0 6px 16px rgba(232,51,42,.26);}
.btn--red:hover{background:var(--red-dark);color:#fff;}
.btn--blue{background:var(--blue);color:#fff;box-shadow:0 6px 16px rgba(27,77,228,.24);}
.btn--blue:hover{background:var(--blue-deep);color:#fff;}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--ink);}
.btn--ghost:hover{border-color:var(--red);color:var(--red-dark);}
.btn--lime{background:var(--lime);color:var(--ink);}
.btn--lime:hover{color:var(--ink);}
.btn--sm{padding:9px 16px;font-size:13px;}

/* ---------- 12. 标签 / 索引 / 数字 ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border:1px solid var(--line);
  border-radius:var(--pill);
  background:var(--surface);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.06em;
  line-height:1.6;
  color:var(--text-mute);
}
.tag--red{color:var(--red-dark);border-color:rgba(232,51,42,.38);background:rgba(232,51,42,.07);}
.tag--blue{color:var(--blue);border-color:rgba(27,77,228,.34);background:rgba(27,77,228,.07);}
.tag--lime{color:var(--lime);border-color:rgba(182,240,58,.45);background:rgba(182,240,58,.12);}

.idx{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--text-mute);
}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.num{
  font-family:var(--font-mono);
  font-weight:700;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
}
.num--red{color:var(--red-dark);}
.num--blue{color:var(--blue);}
.num--lime{color:var(--lime);}
.txt-red{color:var(--red-dark);}
.txt-blue{color:var(--blue);}
.txt-mute{color:var(--text-mute);}

/* ---------- 13. 卡片 / 面板 / 数据舱 ---------- */
.card{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:clamp(18px,2.4vw,26px);
  box-shadow:var(--sh-card);
  transition:border-color .18s var(--ease), transform .18s var(--ease), box-shadow .18s var(--ease);
}
.card--red:hover{border-color:var(--red);transform:translateY(-2px);box-shadow:0 10px 24px rgba(232,51,42,.12);}
.card--blue:hover{border-color:var(--blue);transform:translateY(-2px);box-shadow:0 10px 24px rgba(27,77,228,.12);}
.card--flat{box-shadow:none;}
.card--deck{
  background:var(--ink);
  border-color:rgba(201,207,216,.18);
  color:var(--on-dark);
}
.card--deck h3,.card--deck h4{color:#fff;}
.card--deck p{color:var(--on-dark-mute);}
.card--deck .tag{background:rgba(255,255,255,.04);}

.panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:clamp(18px,2.4vw,28px);
}
.panel[hidden]{display:none;}

.deck{
  position:relative;
  padding:clamp(22px,3.4vw,44px);
  border:1px solid rgba(201,207,216,.16);
  border-radius:var(--radius-lg);
  background:
    radial-gradient(120% 140% at 0% 0%, rgba(27,77,228,.38) 0%, transparent 55%),
    radial-gradient(100% 120% at 100% 0%, rgba(232,51,42,.28) 0%, transparent 58%),
    var(--ink);
  color:var(--on-dark);
  overflow:hidden;
}
.deck::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(to right, rgba(201,207,216,.09) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(201,207,216,.09) 1px, transparent 1px);
  background-size:var(--grid) var(--grid);
}
.deck > *{position:relative;z-index:1;}
.deck h2,.deck h3{color:#fff;}
.deck p{color:var(--on-dark-mute);}

/* ---------- 14. 图片容器 ---------- */
.figure{
  position:relative;
  margin:0;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--surface);
  box-shadow:var(--sh-card);
}
.figure img{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
}
.figure--16x9{aspect-ratio:16/9;}
.figure--4x3{aspect-ratio:4/3;}
.figure--3x2{aspect-ratio:3/2;}
.figure--1x1{aspect-ratio:1/1;}
.figure--21x9{aspect-ratio:21/9;}
.figure--ph{
  display:flex;
  align-items:center;
  justify-content:center;
  background:
    linear-gradient(120deg, rgba(232,51,42,.13), rgba(27,77,228,.13)),
    repeating-linear-gradient(90deg, rgba(13,17,23,.05) 0 1px, transparent 1px 40px),
    repeating-linear-gradient(0deg, rgba(13,17,23,.05) 0 1px, transparent 1px 40px),
    var(--surface);
}
.figure--ph::after{
  content:attr(data-caption);
  padding:0 16px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--text-mute);
  text-align:center;
}
.figure--dual::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:1;
  pointer-events:none;
  background:linear-gradient(118deg, rgba(232,51,42,.30) 0%, rgba(122,14,22,.12) 42%, rgba(27,77,228,.30) 100%);
  mix-blend-mode:multiply;
}
.figure--deck{
  background:var(--ink);
  border-color:rgba(201,207,216,.18);
  box-shadow:none;
}
.figure__cap{
  position:absolute;
  left:0;right:0;bottom:0;
  z-index:2;
  padding:14px 16px;
  background:linear-gradient(180deg, rgba(13,17,23,0) 0%, rgba(13,17,23,.84) 100%);
  color:#fff;
  font-size:13px;
  line-height:1.6;
}

/* ---------- 15. 表格 ---------- */
.table-wrap{
  width:100%;
  overflow-x:auto;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--surface);
}
.data-table{width:100%;min-width:640px;font-size:14px;}
.data-table th,
.data-table td{
  padding:13px 16px;
  text-align:left;
  vertical-align:top;
  border-bottom:1px solid var(--line);
}
.data-table thead th{
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--text-mute);
  background:#FAFBFC;
  white-space:nowrap;
}
.data-table tbody tr{transition:background-color .16s var(--ease);}
.data-table tbody tr:hover{background:rgba(27,77,228,.05);}
.data-table tbody tr:last-child td{border-bottom:0;}

/* ---------- 16. 正文块 ---------- */
.prose{max-width:38em;}
.prose p{font-size:17px;line-height:1.75;color:#2C333D;}
.prose p + p{margin-top:1em;}
.prose h3{margin-top:1.6em;margin-bottom:.5em;}
.prose ul{list-style:disc;padding-left:1.2em;margin-top:.6em;}
.prose ol{list-style:decimal;padding-left:1.4em;margin-top:.6em;}
.prose li{margin-bottom:.4em;}
.prose a{color:var(--red-dark);text-decoration:underline;text-underline-offset:3px;}
.prose a:hover{color:var(--blue);}
.section--deck .prose p,
.section--deck .prose li{color:var(--on-dark-mute);}

/* ---------- 17. 单选项组（页面内筛选） ---------- */
.seg{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  width:fit-content;
  max-width:100%;
  padding:6px;
  border:1px solid var(--line);
  border-radius:var(--pill);
  background:var(--surface);
}
.seg input[type="radio"],
.seg input[type="checkbox"]{
  position:absolute;
  width:1px;height:1px;
  margin:0;
  opacity:0;
  pointer-events:none;
}
.seg label{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:9px 16px;
  border-radius:var(--pill);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--text-soft);
  cursor:pointer;
  transition:background-color .18s var(--ease), color .18s var(--ease);
}
.seg label:hover{background:rgba(27,77,228,.08);color:var(--blue-deep);}
.seg input:checked + label{background:var(--ink);color:#fff;}
.seg input:focus-visible + label{outline:2px solid var(--blue);outline-offset:2px;}

/* ---------- 18. 页脚 · 深色数据舱 ---------- */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:clamp(56px,8vw,110px);
  background:linear-gradient(180deg, #0B2A6B 0%, #0D1117 58%, #0D1117 100%);
  color:var(--on-dark);
  border-top:1px solid rgba(201,207,216,.22);
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(to right, rgba(201,207,216,.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(201,207,216,.07) 1px, transparent 1px);
  background-size:var(--grid) var(--grid);
}
.site-footer::after{
  content:"";
  position:absolute;
  top:0;left:0;
  width:100%;height:3px;
  background:linear-gradient(90deg, var(--red) 0 50%, var(--blue) 50% 100%);
}
.footer-inner{
  position:relative;
  z-index:1;
  width:100%;
  max-width:var(--w-max);
  margin-inline:auto;
  padding:clamp(40px,5vw,72px) var(--pad-gutter) clamp(28px,3vw,40px);
  display:grid;
  grid-template-columns:minmax(230px,1fr) 2.6fr;
  gap:clamp(32px,4vw,64px);
}
.footer-brand{display:flex;flex-direction:column;align-items:flex-start;gap:14px;}
.brand--footer .brand-name{color:#fff;}
.brand--footer .brand-sub{color:var(--on-dark-mute);}
.footer-lede{
  max-width:32ch;
  font-size:14px;
  line-height:1.75;
  color:var(--on-dark-mute);
}
.footer-tagline{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--on-dark);
}
.footer-tagline .idx{color:var(--lime);}
.footer-cols{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:clamp(20px,3vw,36px);
}
.footer-col-title{
  display:flex;
  align-items:center;
  gap:8px;
  padding-bottom:12px;
  margin-bottom:14px;
  border-bottom:1px solid rgba(201,207,216,.18);
  font-family:var(--font-head);
  font-size:14px;
  font-weight:700;
  letter-spacing:.02em;
  color:#fff;
}
.footer-col-title .idx{color:var(--lime);}
.footer-list{display:flex;flex-direction:column;gap:10px;}
.footer-list a{
  display:inline-block;
  font-size:14px;
  line-height:1.7;
  color:var(--on-dark-mute);
  word-break:break-word;
  transition:color .18s var(--ease);
}
.footer-list a:hover{color:#fff;}
.footer-base{
  position:relative;
  z-index:1;
  width:100%;
  max-width:var(--w-max);
  margin-inline:auto;
  padding:20px var(--pad-gutter) 32px;
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:10px 28px;
  border-top:1px solid rgba(201,207,216,.16);
  font-size:13px;
  color:var(--on-dark-mute);
}
.footer-legal{font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;}
.footer-service{max-width:64ch;line-height:1.7;}

/* ---------- 19. 显现动效 ---------- */
[data-js="on"] [data-reveal]{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .6s var(--ease), transform .6s var(--ease);
}
[data-js="on"] [data-reveal].is-revealed{
  opacity:1;
  transform:none;
}

/* ---------- 20. 响应式 ---------- */
@media (max-width:1080px){
  .col-main,
  .col-aside,
  .col-index{grid-column:span 12;}
  .col-half{grid-column:span 6;}
  .footer-inner{grid-template-columns:1fr;}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr));}
}

@media (max-width:1024px){
  .header-pod{
    flex-wrap:wrap;
    padding:10px 12px;
    border-radius:var(--radius-lg);
  }
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .nav{
    order:3;
    flex-basis:100%;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:8px;
    margin-left:0;
    padding-top:10px;
    border-top:1px solid var(--line);
  }
  .nav[data-open]{display:flex;}
  .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:2px;
  }
  .nav-list li + li{border-left:0;}
  .nav-list a{
    padding:12px 14px;
    border-radius:10px;
    font-size:15px;
  }
  .nav-list a[aria-current="page"]{
    background:linear-gradient(100deg, rgba(232,51,42,.14), rgba(27,77,228,.14));
  }
  .nav-cta{
    margin-top:4px;
    padding:13px 18px;
  }
}

@media (max-width:640px){
  .col-half{grid-column:span 12;}
  .footer-cols{grid-template-columns:1fr;gap:26px;}
  .footer-base{flex-direction:column;align-items:flex-start;}
  .brand-sub{display:none;}
  .seg{width:100%;border-radius:var(--radius);}
  .seg label{flex:1 1 auto;justify-content:center;}
}

/* ---------- 21. 减少动效 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  body::before{animation:none;}
  [data-js="on"] [data-reveal]{opacity:1;transform:none;}
  .btn:hover,
  .card--red:hover,
  .card--blue:hover,
  .nav-cta:hover{transform:none;}
}