/* ==========================================================================
   绿茵体育 · 共享样式 /assets/site.css
   夜场墨绿 × 纸面奶油 × 草绿 × 荧光黄绿
   ========================================================================== */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body,figure,blockquote,dl,dd,h1,h2,h3,h4,h5,h6,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img,picture,svg,video{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;border-spacing:0}
[hidden]{display:none !important}

/* ---------- 2. Tokens ---------- */
:root{
  --paper-cream:#F7F3E8;
  --paper-deep:#EFE8D7;
  --card-ivory:#FFFDF6;
  --pitch-night:#0F2A1F;
  --pitch-night-2:#153627;
  --grass-primary:#1E7A46;
  --grass-light:#35A65B;
  --volt-highlight:#C9F24D;
  --point-orange:#E1522B;
  --ink-charcoal:#15181A;
  --ink-soft:#39423C;
  --neutral-moss:#6B7A6F;
  --rule-line:#D8D2C2;

  --font-display:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:var(--font-display);
  --font-mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --measure:64em;
  --shell:1240px;
  --gutter:clamp(18px,4vw,48px);
  --rule:1px solid var(--rule-line);
  --radius:2px;
  --shadow-1:0 1px 0 rgba(21,24,26,.04),0 10px 26px -20px rgba(15,42,31,.4);
  --shadow-2:0 2px 0 rgba(21,24,26,.05),0 20px 44px -26px rgba(15,42,31,.5);
  --t-fast:160ms ease;
}

/* ---------- 3. Base ---------- */
body{
  min-height:100vh;
  display:flex;
  flex-direction:column;
  background-color:var(--paper-cream);
  color:var(--ink-charcoal);
  font-family:var(--font-body);
  font-size:clamp(16px,0.32vw + 15.4px,17px);
  font-weight:400;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
::selection{background:var(--volt-highlight);color:var(--pitch-night)}
:focus-visible{outline:2px solid var(--grass-primary);outline-offset:2px;border-radius:1px}
.site-header :focus-visible,.site-footer :focus-visible{outline-color:var(--volt-highlight)}
#main-content{display:block;outline:none}
.site-main{display:block;flex:1 1 auto;padding-bottom:clamp(24px,4vw,56px)}
h1,h2,h3,h4{font-weight:800;line-height:1.2;letter-spacing:-.01em}
.visually-hidden{position:absolute !important;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}
body.has-overlay{overflow:hidden}

/* ---------- 4. 通用排版 ---------- */
.wrap{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(36px,5.5vw,80px)}
.section--tight{padding-block:clamp(22px,3vw,42px)}
.section--paper{background:var(--paper-deep)}
.section--dark{background:var(--pitch-night);color:var(--paper-cream)}
.section-rule{border-top:var(--rule)}
.section-head{display:grid;gap:12px;margin-bottom:clamp(20px,3vw,36px)}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--neutral-moss)}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--grass-primary);flex:0 0 auto}
.section-title{font-size:clamp(24px,3vw,38px);line-height:1.14;font-weight:800}
.lede{font-size:clamp(15px,1.1vw,17px);line-height:1.8;color:var(--ink-soft);max-width:40em}
.section--dark .section-title{color:var(--paper-cream)}
.section--dark .lede{color:rgba(247,243,232,.75)}
.section--dark .eyebrow{color:rgba(201,242,77,.9)}
.section--dark .eyebrow::before{background:var(--volt-highlight)}
.section--dark .note{color:rgba(247,243,232,.62);border-left-color:rgba(201,242,77,.3)}
.display{font-size:clamp(2.6rem,8vw,6.4rem);line-height:.98;font-weight:300;letter-spacing:-.03em}
.display-strong{font-size:clamp(2.2rem,6vw,5rem);line-height:1;font-weight:900;letter-spacing:-.02em}
.num,.data-figure{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
.data-figure{font-size:clamp(2rem,4vw,3.4rem);line-height:1;font-weight:700;letter-spacing:-.02em}
.prose{max-width:var(--measure);display:grid;gap:16px;font-size:16.5px;line-height:1.8;color:var(--ink-soft)}
.prose h2{font-size:clamp(20px,2vw,26px);color:var(--ink-charcoal);margin-top:12px}
.prose h3{font-size:17px;color:var(--ink-charcoal)}
.prose ul{display:grid;gap:8px;padding-left:1.15em;list-style:disc}
.prose ol{display:grid;gap:8px;padding-left:1.4em;list-style:decimal}
.prose a{color:var(--grass-primary);border-bottom:1px solid rgba(30,122,70,.35)}
.prose a:hover{border-bottom-color:var(--grass-primary);color:var(--grass-light)}
.divider{height:1px;background:var(--rule-line);border:0}
.stack{display:grid;gap:clamp(14px,2vw,24px)}
.stack--sm{gap:8px}
.stack--lg{gap:clamp(24px,4vw,48px)}
.note{font-size:12.5px;line-height:1.8;color:var(--neutral-moss);border-left:2px solid var(--rule-line);padding-left:12px}

/* ---------- 5. 网格 ---------- */
.grid{display:grid;gap:clamp(18px,2.6vw,36px)}
.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--5-7{grid-template-columns:5fr 7fr}
.grid--7-5{grid-template-columns:7fr 5fr}
.grid--8-4{grid-template-columns:8fr 4fr}

/* 目录页：左窄索引列 + 右宽内容列 */
.layout-index{display:grid;grid-template-columns:minmax(190px,3fr) 9fr;gap:clamp(22px,3.4vw,56px);align-items:start}
.index-rail{position:sticky;top:calc(64px + 20px);display:grid;gap:4px}
.index-rail-title{font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;color:var(--neutral-moss);padding-bottom:10px;border-bottom:var(--rule);margin-bottom:8px}
.rail-link{display:grid;grid-template-columns:34px 1fr;gap:8px;align-items:baseline;padding:8px 10px;font-size:14px;color:var(--ink-soft);border-left:2px solid transparent;transition:color var(--t-fast),background var(--t-fast),border-color var(--t-fast)}
.rail-link:hover{color:var(--grass-primary);background:rgba(30,122,70,.06);border-left-color:var(--grass-light)}
.rail-link[aria-current="true"]{color:var(--ink-charcoal);background:rgba(201,242,77,.16);border-left-color:var(--volt-highlight)}
.rail-index{font-family:var(--font-mono);font-size:10.5px;color:var(--neutral-moss)}

/* ---------- 6. 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 18px;border:1px solid var(--grass-primary);border-radius:var(--radius);font-size:13.5px;font-weight:700;letter-spacing:.06em;color:var(--grass-primary);background:transparent;transition:background var(--t-fast),color var(--t-fast),border-color var(--t-fast),box-shadow var(--t-fast)}
.btn--primary{background:var(--grass-primary);border-color:var(--grass-primary);color:var(--paper-cream)}
.btn--primary:hover{background:var(--grass-light);border-color:var(--grass-light);color:var(--pitch-night);box-shadow:var(--shadow-2)}
.btn--ghost{border-color:var(--rule-line);color:var(--ink-soft);background:var(--card-ivory)}
.btn--ghost:hover{border-color:var(--grass-light);color:var(--grass-primary);box-shadow:var(--shadow-1)}
.btn--volt{background:var(--volt-highlight);border-color:var(--volt-highlight);color:var(--pitch-night)}
.btn--volt:hover{background:#dcff6e;border-color:#dcff6e;color:var(--pitch-night);box-shadow:0 12px 30px -16px rgba(201,242,77,.7)}
.btn--sm{padding:7px 12px;font-size:12.5px}

/* ---------- 7. 卡片 / 提示 / 标签 ---------- */
.card{display:grid;gap:12px;padding:clamp(16px,2vw,24px);background:var(--card-ivory);border:var(--rule);border-radius:var(--radius);box-shadow:var(--shadow-1);transition:border-color var(--t-fast),box-shadow var(--t-fast),background var(--t-fast)}
.card:hover{border-color:var(--grass-light);box-shadow:var(--shadow-2);background:#fff}
.card--night{background:var(--pitch-night-2);border-color:rgba(201,242,77,.24);color:var(--paper-cream)}
.card--night .card-title{color:var(--paper-cream)}
.card--night .card-text{color:rgba(247,243,232,.72)}
.card--night .card-meta{color:rgba(201,242,77,.8)}
.card--offset{transform:translateY(16px)}
.card-head{display:flex;align-items:baseline;justify-content:space-between;gap:14px;flex-wrap:wrap}
.card-title{font-size:17px;font-weight:700;line-height:1.35;color:var(--ink-charcoal)}
.card-meta{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:var(--neutral-moss)}
.card-text{font-size:14.5px;line-height:1.75;color:var(--ink-soft)}

.callout{display:grid;gap:8px;padding:clamp(14px,2vw,20px) clamp(16px,2vw,24px);background:var(--card-ivory);border:var(--rule);border-left:3px solid var(--grass-primary);border-radius:var(--radius)}
.callout--volt{border-left-color:var(--volt-highlight);background:rgba(201,242,77,.13)}
.callout--alert{border-left-color:var(--point-orange);background:rgba(225,82,43,.07)}
.callout-title{font-family:var(--font-mono);font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--neutral-moss)}
.callout p{font-size:14.5px;line-height:1.75;color:var(--ink-soft)}

.tag{display:inline-flex;align-items:center;gap:6px;padding:3px 9px;border:1px solid var(--rule-line);border-radius:2px;font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--neutral-moss);background:var(--card-ivory)}
.tag--volt{border-color:rgba(201,242,77,.55);background:rgba(201,242,77,.18);color:var(--pitch-night)}
.tag--orange{border-color:rgba(225,82,43,.4);background:rgba(225,82,43,.09);color:var(--point-orange)}

/* ---------- 8. 筛选芯片 ---------- */
.chip-row{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:center;gap:7px;padding:7px 13px;border:1px solid var(--rule-line);border-radius:999px;background:var(--card-ivory);color:var(--ink-soft);font-size:13px;letter-spacing:.03em;transition:border-color var(--t-fast),background var(--t-fast),color var(--t-fast)}
.chip:hover{border-color:var(--grass-light);color:var(--grass-primary)}
.chip[aria-pressed="true"]{background:var(--pitch-night);border-color:var(--pitch-night);color:var(--volt-highlight)}
.chip-num{font-family:var(--font-mono);font-size:11px;opacity:.72}

/* ---------- 9. 数据表 ---------- */
.data-table{width:100%;background:var(--card-ivory);border:var(--rule);font-size:14px}
.data-table caption{caption-side:top;text-align:left;padding:0 0 10px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em;color:var(--neutral-moss)}
.data-table th,.data-table td{padding:11px 12px;border-bottom:1px solid var(--rule-line);text-align:left;vertical-align:top}
.data-table thead th{font-family:var(--font-mono);font-size:11.5px;font-weight:500;letter-spacing:.1em;color:var(--neutral-moss);border-bottom:1px solid var(--ink-charcoal)}
.data-table tbody tr:hover{background:rgba(30,122,70,.05)}
.data-table .num,.data-table th.num{text-align:right}

/* ---------- 10. 图片容器 ---------- */
.media-frame{position:relative;width:100%;aspect-ratio:16 / 10;overflow:hidden;border:var(--rule);border-radius:var(--radius);background-color:var(--pitch-night);background-image:repeating-linear-gradient(115deg,rgba(201,242,77,.05) 0 3px,transparent 3px 78px),radial-gradient(90% 70% at 18% 0%,rgba(53,166,91,.5),transparent 62%),linear-gradient(200deg,#16382a 0%,#0F2A1F 100%)}
.media-frame > img,.media-frame > picture > img,.media-frame > video{width:100%;height:100%;object-fit:cover}
.media-frame--wide{aspect-ratio:21 / 9}
.media-frame--square{aspect-ratio:1 / 1}
.media-frame--tall{aspect-ratio:3 / 4}
.media-frame--outline{background-image:none;background-color:var(--paper-deep);border-color:var(--rule-line)}
.media-frame-caption{margin-top:10px;font-size:12px;letter-spacing:.04em;color:var(--neutral-moss)}
.section--dark .media-frame-caption{color:rgba(247,243,232,.6)}

/* ---------- 11. 面包屑 ---------- */
.breadcrumbs{padding-block:14px;border-bottom:var(--rule)}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--font-mono);font-size:12px;letter-spacing:.05em;color:var(--neutral-moss)}
.breadcrumb-item{display:inline-flex;align-items:center;gap:8px}
.breadcrumb-item:not(:last-child)::after{content:"/";color:var(--rule-line)}
.breadcrumb-item a{color:var(--neutral-moss)}
.breadcrumb-item a:hover{color:var(--grass-primary)}
.breadcrumb-item[aria-current="page"]{color:var(--ink-charcoal)}

/* ---------- 12. 数据脉冲 ---------- */
@keyframes data-pulse{0%{background-color:rgba(201,242,77,.55)}100%{background-color:rgba(201,242,77,0)}}
.is-pulse{animation:data-pulse 600ms ease-out 1}

/* ==========================================================================
   13. 头部命令栏
   ========================================================================== */
.skip-link{position:absolute;left:12px;top:-64px;z-index:220;padding:10px 16px;background:var(--volt-highlight);color:var(--pitch-night);font-size:13px;font-weight:700;letter-spacing:.08em;border-radius:var(--radius);transition:top var(--t-fast)}
.skip-link:focus{top:12px}

.site-header{position:sticky;top:0;z-index:80;background:var(--pitch-night);color:var(--paper-cream);border-bottom:1px solid rgba(201,242,77,.26);box-shadow:0 14px 30px -28px rgba(15,42,31,.9)}
.header-inner{width:100%;max-width:var(--shell);margin-inline:auto;padding:10px var(--gutter);min-height:66px;display:flex;align-items:center;gap:clamp(14px,2.4vw,34px)}

.brand-block{flex:0 0 auto;display:flex;align-items:center}
.brand{display:flex;align-items:center;gap:12px;color:var(--paper-cream)}
.brand-mark{display:grid;place-items:center;width:38px;height:38px;border:1px solid rgba(201,242,77,.5);background:rgba(201,242,77,.07);color:var(--volt-highlight);font-family:var(--font-mono);font-size:13px;letter-spacing:.06em;border-radius:var(--radius);transition:background var(--t-fast),color var(--t-fast),border-color var(--t-fast)}
.brand:hover .brand-mark{background:var(--volt-highlight);color:var(--pitch-night);border-color:var(--volt-highlight)}
.brand-text{display:flex;flex-direction:column;line-height:1.16}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.06em}
.brand-line{font-size:11px;font-weight:400;letter-spacing:.08em;color:rgba(247,243,232,.6)}

.primary-nav{flex:1 1 auto;min-width:0}
.nav-list{display:flex;align-items:center;flex-wrap:wrap;gap:2px}
.nav-item{display:block}
.nav-link{display:inline-flex;align-items:baseline;gap:6px;padding:8px 10px;border:1px solid transparent;border-radius:var(--radius);font-size:13.5px;letter-spacing:.04em;color:rgba(247,243,232,.82);transition:background var(--t-fast),border-color var(--t-fast),color var(--t-fast)}
.nav-index{font-family:var(--font-mono);font-size:10px;letter-spacing:.06em;color:var(--volt-highlight);opacity:.5;transition:opacity var(--t-fast)}
.nav-link:hover{background:rgba(201,242,77,.1);border-color:rgba(201,242,77,.45);color:#fff}
.nav-link:hover .nav-index{opacity:1}
.nav-link[aria-current="page"]{background:rgba(201,242,77,.09);border-color:rgba(201,242,77,.7);color:var(--volt-highlight)}
.nav-link[aria-current="page"] .nav-index{opacity:1}

.header-tools{flex:0 0 auto;display:flex;align-items:center;gap:10px}
.status-pill{display:inline-flex;align-items:center;gap:7px;padding:5px 11px;border:1px solid rgba(201,242,77,.35);border-radius:999px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:rgba(247,243,232,.85);white-space:nowrap}
.status-dot{width:6px;height:6px;border-radius:50%;background:var(--volt-highlight);box-shadow:0 0 0 3px rgba(201,242,77,.16)}
.index-hint{display:inline-flex;align-items:center;gap:8px;padding:6px 10px;border:1px solid rgba(247,243,232,.24);border-radius:var(--radius);font-size:12px;letter-spacing:.06em;color:rgba(247,243,232,.72);transition:border-color var(--t-fast),color var(--t-fast),background var(--t-fast)}
.index-hint:hover{border-color:var(--volt-highlight);color:var(--volt-highlight);background:rgba(201,242,77,.08)}
.index-hint-key{font-family:var(--font-mono);font-size:11px;line-height:16px;padding:0 5px;border:1px solid currentColor;border-radius:2px}
.header-cta{padding:9px 15px;font-size:13px}

.nav-toggle{display:none;width:44px;height:40px;flex-direction:column;align-items:center;justify-content:center;gap:5px;border:1px solid rgba(247,243,232,.28);border-radius:var(--radius);transition:border-color var(--t-fast),background var(--t-fast)}
.nav-toggle:hover{border-color:var(--volt-highlight);background:rgba(201,242,77,.1)}
.nav-toggle-bar{display:block;width:18px;height:1.5px;background:var(--paper-cream);transition:transform var(--t-fast),opacity var(--t-fast)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2){transform:translateY(6.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(4){transform:translateY(-6.5px) rotate(-45deg)}

.scroll-progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;background:linear-gradient(90deg,var(--grass-light),var(--volt-highlight));transform:scaleX(0);transform-origin:0 50%;pointer-events:none;transition:transform 80ms linear}

/* ---------- 索引浮层 ---------- */
.index-overlay{position:fixed;inset:0;z-index:200;display:grid;place-items:start center;padding:clamp(16px,8vh,110px) var(--gutter) var(--gutter);background:rgba(15,42,31,.74)}
.index-overlay-inner{width:min(680px,100%);max-height:80vh;overflow:auto;padding:clamp(18px,3vw,28px);background:var(--card-ivory);color:var(--ink-charcoal);border:1px solid var(--rule-line);border-top:3px solid var(--volt-highlight);border-radius:var(--radius);box-shadow:0 40px 80px -40px rgba(15,42,31,.75)}
.index-overlay-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding-bottom:12px;border-bottom:var(--rule);margin-bottom:14px}
.index-overlay-title{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--neutral-moss)}
.index-close{padding:5px 10px;border:1px solid var(--rule-line);border-radius:var(--radius);font-size:12px;letter-spacing:.08em;color:var(--grass-primary);transition:border-color var(--t-fast),background var(--t-fast)}
.index-close:hover{border-color:var(--grass-primary);background:var(--paper-cream)}
.index-overlay-list{display:grid;gap:2px}
.index-overlay-link{display:grid;grid-template-columns:38px 1fr auto;align-items:center;gap:12px;padding:11px 10px;border:1px solid transparent;border-radius:var(--radius);color:var(--ink-charcoal);transition:background var(--t-fast),border-color var(--t-fast)}
.index-overlay-link:hover{background:var(--paper-cream);border-color:var(--grass-light)}
.index-overlay-num{font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--neutral-moss)}
.index-overlay-name{font-size:15px;font-weight:500}
.index-overlay-route{font-family:var(--font-mono);font-size:11px;color:var(--neutral-moss)}
.index-overlay-foot{margin-top:16px;padding-top:12px;border-top:var(--rule);font-size:11.5px;letter-spacing:.04em;color:var(--neutral-moss)}

/* ==========================================================================
   14. 页脚
   ========================================================================== */
.site-footer{position:relative;margin-top:clamp(48px,8vw,110px);background:var(--pitch-night);color:rgba(247,243,232,.86);border-top:3px solid var(--volt-highlight)}
.site-footer::before{content:"";position:absolute;inset:0;pointer-events:none;background:repeating-linear-gradient(90deg,rgba(201,242,77,.045) 0 2px,transparent 2px 64px),radial-gradient(120% 90% at 12% -20%,rgba(53,166,91,.28),transparent 62%)}
.footer-inner{position:relative;z-index:1;padding-block:clamp(38px,6vw,72px) 26px}
.footer-top{display:grid;grid-template-columns:minmax(220px,4fr) 8fr;gap:clamp(28px,4vw,64px)}
.footer-brand-name{font-size:clamp(24px,3vw,32px);font-weight:800;letter-spacing:.06em;color:var(--paper-cream)}
.footer-brand-line{margin-top:10px;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em;color:var(--volt-highlight)}
.footer-closing{margin-top:18px;max-width:26em;font-size:14px;line-height:1.8;color:rgba(247,243,232,.66)}
.footer-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(20px,3vw,40px)}
.footer-col{min-width:0}
.footer-col-title{padding-bottom:10px;margin-bottom:14px;border-bottom:1px solid rgba(247,243,232,.14);font-family:var(--font-mono);font-size:11px;font-weight:500;letter-spacing:.18em;text-transform:uppercase;color:rgba(247,243,232,.5)}
.footer-links{display:grid;gap:9px}
.footer-link{display:inline-block;font-size:14px;color:rgba(247,243,232,.86);border-bottom:1px solid transparent;transition:color var(--t-fast),border-color var(--t-fast)}
.footer-link:hover{color:var(--volt-highlight);border-bottom-color:var(--volt-highlight)}
.footer-lines{display:grid;gap:10px}
.footer-line{font-size:13px;line-height:1.7;color:rgba(247,243,232,.66)}
.footer-contact{display:grid;grid-template-columns:minmax(150px,2fr) 10fr;gap:clamp(18px,3vw,40px);margin-top:clamp(30px,4vw,56px);padding-top:clamp(20px,3vw,32px);border-top:1px solid rgba(247,243,232,.16)}
.footer-contact-title{font-family:var(--font-mono);font-size:11px;font-weight:500;letter-spacing:.18em;color:rgba(247,243,232,.5)}
.footer-contact-body{display:grid;gap:18px}
.contact-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px 28px}
.contact-item{display:grid;gap:4px}
.contact-label{font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:rgba(201,242,77,.75)}
.contact-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.contact-value{font-size:13.5px;line-height:1.7;color:rgba(247,243,232,.9);word-break:break-all}
.copy-btn{padding:3px 8px;border:1px solid rgba(201,242,77,.45);border-radius:2px;font-family:var(--font-mono);font-size:10.5px;letter-spacing:.1em;color:var(--volt-highlight);transition:background var(--t-fast),color var(--t-fast),border-color var(--t-fast)}
.copy-btn:hover{background:rgba(201,242,77,.14)}
.copy-btn[data-copied]{background:var(--volt-highlight);border-color:var(--volt-highlight);color:var(--pitch-night)}
.contact-note{font-size:12.5px;line-height:1.8;color:rgba(247,243,232,.55);max-width:62em}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 24px;margin-top:clamp(26px,4vw,44px);padding-top:18px;border-top:1px solid rgba(247,243,232,.16);font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;color:rgba(247,243,232,.5)}
.footer-legal,.footer-meta{margin:0}

/* ==========================================================================
   15. 响应式
   ========================================================================== */
@media (max-width:1180px){
  .index-hint{display:none}
}
@media (max-width:1000px){
  .nav-toggle{display:flex}
  .primary-nav{position:absolute;left:0;right:0;top:100%;display:none;max-height:calc(100vh - 66px);overflow-y:auto;padding:12px var(--gutter) 22px;background:var(--pitch-night);border-top:1px solid rgba(201,242,77,.25);border-bottom:1px solid rgba(201,242,77,.25);box-shadow:0 26px 40px -30px rgba(0,0,0,.8)}
  .primary-nav[data-open]{display:block}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-link{width:100%;padding:13px 8px;font-size:16px;border-bottom:1px solid rgba(247,243,232,.1);border-radius:0}
  .nav-link[aria-current="page"]{border-radius:0}
  .layout-index{grid-template-columns:minmax(0,1fr)}
  .index-rail{position:static;grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}
  .index-rail-title{grid-column:1 / -1}
}
@media (max-width:900px){
  .grid--2,.grid--3,.grid--4,.grid--5-7,.grid--7-5,.grid--8-4{grid-template-columns:minmax(0,1fr)}
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .card--offset{transform:none}
  .footer-top{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .footer-contact{grid-template-columns:minmax(0,1fr);gap:16px}
}
@media (max-width:640px){
  .grid--4{grid-template-columns:minmax(0,1fr)}
  .header-inner{gap:12px}
  .brand-line{display:none}
  .status-pill{display:none}
  .header-cta{padding:9px 12px;font-size:12.5px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{justify-content:flex-start}
  .index-overlay{padding-top:16px}
}

/* ==========================================================================
   16. 降低动态效果
   ========================================================================== */
@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;
  }
  .card--offset{transform:none}
  .scroll-progress{transition:none}
}