/* ==========================================================================
   8868赛事 · 共享样式表 /assets/site.css
   骨架：12 列锐角网格 + 8px 基线；深绿压顶，纸白阅读，荧光橙只点亮可点处
   ========================================================================== */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0}
h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{display:block;max-width:100%;height:auto}
button{background:none;border:0;padding:0;font:inherit;color:inherit;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}

/* ---------- 2. Tokens ---------- */
:root{
  --ink-green:#0E1F1A;
  --pitch-green:#16352B;
  --stand-blue:#8FA6B8;
  --orange:#FF6A13;
  --orange-deep:#B4370A;
  --flag-red:#E23B3B;
  --paper:#F4F1E8;
  --paper-warm:#E8E2D2;
  --ink:#12181A;
  --white:#FFFFFF;

  --hair:rgba(143,166,184,.34);
  --hair-dark:rgba(244,241,232,.2);
  --hair-ink:rgba(18,24,26,.14);
  --body-text:#243038;
  --muted:#5b6b73;

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

  --wrap:1180px;
  --gutter:clamp(16px,4vw,40px);
  --u:8px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 3. Base ---------- */
body{
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background-color:var(--paper);
  background-image:
    linear-gradient(to right,rgba(18,24,26,.042) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(18,24,26,.042) 1px,transparent 1px);
  background-size:48px 48px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
:focus-visible{outline:2px solid var(--orange);outline-offset:3px}
::selection{background:var(--orange);color:var(--ink-green)}

/* ---------- 4. 排版 ---------- */
h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;letter-spacing:-.012em;line-height:1.14;color:var(--ink)}
h1{font-size:clamp(34px,6vw,64px)}
h2{font-size:clamp(24px,3.4vw,36px)}
h3{font-size:clamp(18px,2.2vw,22px)}
strong{font-weight:700;color:var(--ink)}
.mono{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--stand-blue);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--orange-deep);
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--orange);flex:none}

/* ---------- 5. 布局骨架 ---------- */
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter)}
.breadcrumb{width:100%;max-width:var(--wrap);margin:0 auto;padding:14px var(--gutter) 0}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-family:var(--font-mono);font-size:12px;color:var(--muted)}
.breadcrumb a{color:var(--orange-deep);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--ink-green)}
.breadcrumb li:not(:last-child)::after{content:"/";margin-left:6px;color:var(--stand-blue)}
.breadcrumb li[aria-current="page"]{color:var(--ink)}

.section-head{
  display:grid;grid-template-columns:auto 1fr;gap:6px 20px;align-items:end;
  border-bottom:1px solid var(--hair-ink);padding-bottom:12px;margin-bottom:24px;
}
.section-head h2{grid-column:1/-1}
.section-head p{grid-column:1/-1;color:var(--muted);font-size:15px;max-width:46em}
.section-head .eyebrow{grid-column:1/-1}

.bento{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:16px}
.bento-cell{
  position:relative;background:var(--white);border:1px solid var(--hair-ink);
  padding:clamp(16px,2.6vw,24px);
}
.col-3{grid-column:span 3}
.col-4{grid-column:span 4}
.col-6{grid-column:span 6}
.col-8{grid-column:span 8}
.col-12{grid-column:span 12}

.rail{
  position:sticky;top:16px;align-self:start;width:72px;
  display:flex;flex-direction:column;gap:2px;
  border-right:1px solid var(--hair-ink);
}
.rail-item{
  display:flex;align-items:center;justify-content:center;height:44px;
  font-family:var(--font-mono);font-size:13px;color:#7d8f97;
  border-left:2px solid transparent;
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.rail-item:hover{color:var(--orange-deep);background:var(--paper-warm)}
.rail-item[aria-current="true"]{color:var(--orange-deep);border-left-color:var(--orange);background:var(--paper-warm);font-weight:700}

.tool-card{
  position:sticky;top:16px;width:320px;max-width:100%;
  background:var(--pitch-green);color:var(--paper);
  border:1px solid rgba(255,106,19,.35);padding:20px;
}
.tool-card__title{font-family:var(--font-display);font-size:18px;color:var(--paper);margin-bottom:10px}
.tool-card__row{
  display:flex;justify-content:space-between;gap:12px;
  font-size:13px;padding:8px 0;border-bottom:1px dashed var(--hair-dark);
}
.tool-card__row:last-child{border-bottom:0}

/* ---------- 6. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-body);font-weight:700;font-size:15px;letter-spacing:.04em;
  padding:12px 20px;border:1px solid transparent;border-radius:0;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn--solid{background:var(--orange);color:var(--ink-green);border-color:var(--orange)}
.btn--solid:hover{background:var(--orange-deep);border-color:var(--orange-deep);color:var(--white)}
.btn--line{background:transparent;color:var(--ink-green);border-color:var(--ink-green)}
.btn--line:hover{background:var(--ink-green);color:var(--paper)}
.btn--ghost-light{background:transparent;color:var(--paper);border-color:rgba(244,241,232,.5)}
.btn--ghost-light:hover{background:var(--orange);border-color:var(--orange);color:var(--ink-green)}

/* ---------- 7. 图片容器 ---------- */
.figure{position:relative;margin:0;background:var(--paper-warm);border:1px solid var(--hair-ink);overflow:hidden}
.figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10}
.figure--wide img{aspect-ratio:21/9}
.figure--tall img{aspect-ratio:3/4}
.figure--square img{aspect-ratio:1/1}
.figure__caption{
  position:absolute;left:0;right:0;bottom:0;padding:10px 14px;
  background:linear-gradient(transparent,rgba(14,31,26,.84));
  color:var(--paper);font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;
}

/* ---------- 8. 标签与正文 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 9px;font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
  border:1px solid currentColor;color:var(--orange-deep);
}
.tag--alert{color:var(--flag-red)}
.tag--light{color:var(--paper);border-color:rgba(244,241,232,.5)}

.prose{max-width:68ch;color:var(--body-text)}
.prose p{margin-bottom:1.1em}
.prose h3{margin:1.6em 0 .6em}
.prose ul{margin:0 0 1.2em;padding:0}
.prose li{position:relative;padding-left:20px;margin-bottom:.5em}
.prose li::before{content:"";position:absolute;left:0;top:.75em;width:8px;height:2px;background:var(--orange)}
.prose a{color:var(--orange-deep);border-bottom:1px solid currentColor;transition:color .2s var(--ease)}
.prose a:hover{color:var(--ink-green)}

/* ---------- 9. 章节目录与入场 ---------- */
.spy-link{
  display:block;padding:8px 0 8px 14px;
  border-left:1px solid var(--hair-ink);font-size:14px;color:var(--muted);
  transition:color .2s var(--ease),border-color .2s var(--ease),padding-left .2s var(--ease);
}
.spy-link:hover{color:var(--orange-deep);padding-left:18px}
.spy-link[aria-current="true"]{color:var(--orange-deep);border-left-color:var(--orange);font-weight:700}

.js [data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .32s var(--ease),transform .32s var(--ease)}
.js [data-reveal].is-in{opacity:1;transform:none}

/* ---------- 10. Skip link ---------- */
.skip-link{
  position:fixed;top:-80px;left:16px;z-index:200;
  background:var(--orange);color:var(--ink-green);
  padding:10px 18px;font-weight:700;font-size:14px;
  transition:top .2s var(--ease);
}
.skip-link:focus,.skip-link:focus-visible{top:12px}

/* ---------- 11. 页头刊头 ---------- */
.site-header{
  position:relative;z-index:60;
  background:var(--ink-green);color:var(--paper);
  border-bottom:1px solid rgba(255,106,19,.45);
}
.header-inner{max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter);position:relative}
.masthead{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;
  padding:16px 0 14px;border-bottom:1px solid var(--hair-dark);
}
.masthead-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:12px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--stand-blue);
}
.meta-date{white-space:nowrap}
.meta-status{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 8px;border:1px solid rgba(143,166,184,.3);
  font-size:11px;letter-spacing:.1em;
}
.status-dot{
  width:7px;height:7px;flex:none;background:var(--orange);display:block;
  animation:dotPulse 2.6s var(--ease) infinite;
}
@keyframes dotPulse{
  0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(255,106,19,.5)}
  50%{opacity:.55;box-shadow:0 0 0 4px rgba(255,106,19,0)}
}
.masthead-brand{display:flex;flex-direction:column;align-items:center;gap:4px;text-align:center}
.brand-mark{
  font-family:var(--font-display);font-weight:800;
  font-size:clamp(26px,4.4vw,40px);line-height:1;letter-spacing:-.02em;
  color:var(--paper);transition:color .22s var(--ease);
}
.brand-mark:hover{color:var(--orange)}
.brand-sub{font-family:var(--font-mono);font-size:11px;letter-spacing:.34em;color:var(--stand-blue)}
.masthead-cta{display:flex;justify-content:flex-end}
.btn-android{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--orange);color:var(--ink-green);border:1px solid var(--orange);
  font-weight:700;font-size:14px;letter-spacing:.06em;padding:10px 16px;
  transition:background .22s var(--ease),color .22s var(--ease);
}
.btn-android:hover{background:transparent;color:var(--orange)}
.btn-arrow{font-family:var(--font-mono);font-size:13px;display:inline-block;transition:transform .22s var(--ease)}
.btn-android:hover .btn-arrow{transform:translateY(3px)}

/* 栏目导航 */
.masthead-nav{
  display:flex;align-items:center;justify-content:center;
  position:relative;
}
.nav-list{
  display:flex;align-items:center;justify-content:center;flex-wrap:wrap;
  gap:clamp(10px,2.4vw,34px);
}
.nav-list a{
  position:relative;display:block;padding:14px 2px 13px;
  font-size:15px;letter-spacing:.05em;color:var(--paper);
  transition:color .2s var(--ease);
}
.nav-list a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--orange);transform:scaleX(0);transform-origin:left;
  transition:transform .26s var(--ease);
}
.nav-list a:hover{color:var(--orange)}
.nav-list a:hover::after{transform:scaleX(1)}
.nav-list a[aria-current="page"]{color:var(--orange);font-weight:700}
.nav-list a[aria-current="page"]::after{transform:scaleX(1)}

.nav-toggle{display:none}
.nav-toggle-bars{display:inline-flex;flex-direction:column;gap:4px;width:22px}
.nav-toggle-bars span{display:block;height:2px;width:100%;background:var(--orange);transition:transform .24s var(--ease),opacity .24s var(--ease)}
.nav-toggle-label{font-family:var(--font-mono);font-size:12px;letter-spacing:.26em;color:var(--paper)}
.masthead-nav[data-open="true"] .nav-toggle-bars span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.masthead-nav[data-open="true"] .nav-toggle-bars span:nth-child(2){opacity:0}
.masthead-nav[data-open="true"] .nav-toggle-bars span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.scroll-progress{
  position:fixed;top:0;left:0;height:3px;width:0;z-index:120;
  background:var(--orange);pointer-events:none;
  transition:width .12s linear;
}

/* ---------- 12. 页脚 ---------- */
.site-footer{
  background:var(--ink-green);color:var(--paper);
  border-top:3px solid var(--orange);
  margin-top:64px;
}
.footer-inner{max-width:var(--wrap);margin:0 auto;padding:clamp(36px,6vw,60px) var(--gutter) 24px}
.footer-grid{display:grid;grid-template-columns:1.25fr 1.1fr .85fr 1.2fr;gap:clamp(20px,3vw,32px)}
.footer-col{min-width:0}
.footer-col + .footer-col{border-left:1px solid var(--hair-dark);padding-left:clamp(16px,2.4vw,28px)}

.footer-wordmark{
  display:inline-block;font-family:var(--font-display);font-weight:800;
  font-size:clamp(24px,3.4vw,32px);line-height:1;letter-spacing:-.02em;
  color:var(--paper);transition:color .22s var(--ease);
}
.footer-wordmark:hover{color:var(--orange)}
.footer-tagline{margin-top:12px;font-size:14px;line-height:1.7;color:rgba(244,241,232,.82);max-width:24em}
.footer-icp{margin-top:14px;font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--stand-blue)}
.footer-note{margin-top:8px;font-family:var(--font-mono);font-size:11px;letter-spacing:.04em;color:rgba(143,166,184,.85);line-height:1.7}

.footer-title{
  display:flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11px;font-weight:400;
  letter-spacing:.22em;text-transform:uppercase;color:var(--orange);
  margin-bottom:8px;
}
.footer-title::before{content:"";width:8px;height:8px;background:var(--orange);flex:none}
.footer-title--tight{margin-top:22px}
.footer-link-strong{
  display:inline-block;font-size:14px;font-weight:700;color:var(--paper);
  border-bottom:1px solid rgba(255,106,19,.55);padding-bottom:2px;
  transition:color .22s var(--ease),border-color .22s var(--ease);
}
.footer-link-strong:hover{color:var(--orange);border-color:var(--orange)}

.footer-archive{
  margin-top:10px;max-height:190px;overflow-y:auto;padding-right:6px;
  border-top:1px solid var(--hair-dark);
}
.footer-archive::-webkit-scrollbar{width:4px}
.footer-archive::-webkit-scrollbar-thumb{background:var(--stand-blue)}
.archive-link{
  display:flex;align-items:baseline;gap:10px;
  padding:6px 0;border-bottom:1px solid rgba(244,241,232,.08);
  font-size:13px;color:rgba(244,241,232,.82);
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.archive-link:hover{color:var(--orange);padding-left:4px}
.archive-no{font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;color:var(--stand-blue)}
.archive-txt{font-size:13px}

.footer-list{margin-top:8px;display:grid;gap:2px}
.footer-list a{
  display:inline-block;padding:4px 0;font-size:14px;color:rgba(244,241,232,.85);
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.footer-list a:hover{color:var(--orange);padding-left:6px}

.contact-list{margin-top:10px;display:grid;gap:0}
.contact-row{
  display:grid;grid-template-columns:52px 1fr;gap:10px;
  padding:8px 0;border-bottom:1px dashed rgba(244,241,232,.16);font-size:13px;
}
.contact-row:last-child{border-bottom:0}
.contact-key{font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:var(--stand-blue);padding-top:2px}
.contact-value{color:rgba(244,241,232,.9);word-break:break-word}

.footer-bottom{
  margin-top:36px;padding-top:16px;border-top:1px solid var(--hair-dark);
  display:flex;flex-wrap:wrap;gap:6px 20px;align-items:center;justify-content:space-between;
}

/* ---------- 13. 返回顶部 ---------- */
.to-top{
  position:fixed;right:clamp(12px,3vw,28px);bottom:clamp(12px,3vw,28px);z-index:110;
  width:46px;height:46px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--ink-green);color:var(--orange);border:1px solid var(--orange);
  font-family:var(--font-mono);font-size:16px;line-height:1;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),background .22s var(--ease),color .22s var(--ease),visibility .24s;
}
.to-top[data-visible="true"]{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--orange);color:var(--ink-green)}

/* ---------- 14. 响应式 ---------- */
@media (max-width:1080px){
  .bento{gap:14px}
  .col-3{grid-column:span 6}
  .col-4{grid-column:span 6}
  .col-8{grid-column:span 12}
}
@media (max-width:900px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .footer-col + .footer-col{border-left:0;padding-left:0}
  .tool-card{position:static;width:100%}
}
@media (max-width:880px){
  .masthead{
    grid-template-columns:1fr auto;grid-template-areas:"brand cta" "meta meta";
    row-gap:10px;padding:14px 0 12px;align-items:start;
  }
  .masthead-brand{grid-area:brand;align-items:flex-start;text-align:left;min-width:0}
  .masthead-cta{grid-area:cta}
  .masthead-meta{grid-area:meta;justify-content:flex-start;gap:10px}
  .brand-sub{letter-spacing:.24em}

  .masthead-nav{flex-direction:column;align-items:stretch}
  .nav-toggle{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    width:100%;padding:14px 0;
  }
  .nav-list{display:none;flex-direction:column;align-items:stretch;gap:0;border-top:1px solid var(--hair-dark)}
  .masthead-nav[data-open="true"] .nav-list{display:flex}
  .nav-list li{border-bottom:1px solid var(--hair-dark)}
  .nav-list li:last-child{border-bottom:0}
  .nav-list a{display:flex;align-items:center;justify-content:space-between;padding:14px 4px;font-size:16px}
  .nav-list a::after{
    left:0;right:auto;top:10px;bottom:10px;width:3px;height:auto;
    transform:scaleY(0);transform-origin:top;
  }
  .nav-list a:hover::after,.nav-list a[aria-current="page"]::after{transform:scaleY(1)}

  .rail{position:static;width:100%;flex-direction:row;overflow-x:auto;border-right:0;border-bottom:1px solid var(--hair-ink)}
  .rail-item{height:40px;min-width:44px;border-left:0;border-bottom:2px solid transparent}
  .rail-item[aria-current="true"]{border-left:0;border-bottom-color:var(--orange)}
}
@media (max-width:640px){
  body{background-size:32px 32px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .col-3,.col-4,.col-6,.col-8,.col-12{grid-column:span 12}
  .bento{gap:12px}
}

/* ---------- 15. 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;
    scroll-behavior:auto !important;
  }
  .status-dot{animation:none}
  .btn-android:hover .btn-arrow{transform:none}
  .js [data-reveal]{opacity:1;transform:none}
  .to-top{transform:none}
}