/* ============================================================
   谈球吧主站 · 共享样式表 /assets/site.css
   负责：reset、变量、中文排版、共享头部与页脚、通用组件
   ============================================================ */

/* ---------- 变量 ---------- */
:root{
  --red:#C8102E;
  --red-deep:#8A0C1E;
  --yellow:#F2B705;
  --yellow-deep:#B98A00;
  --yellow-pale:#FCE9A8;
  --ink:#101418;
  --graphite:#3A4148;
  --mist:#F5F6F7;
  --white:#FFFFFF;
  --blue:#2D7FF9;
  --blue-deep:#1B4F8A;
  --line:#D8DCE0;

  --shell:1180px;
  --pad:clamp(16px,4vw,40px);
  --gap:clamp(16px,2.4vw,28px);

  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono","Courier New",monospace;

  --ease:cubic-bezier(.4,.14,.3,1);
  --header-z:80;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--graphite);
  background:var(--mist);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5{margin:0 0 .55em;font-weight:800;color:var(--ink);line-height:1.22;letter-spacing:-.01em}
h1{font-size:clamp(28px,4.4vw,52px)}
h2{font-size:clamp(22px,2.6vw,34px)}
h3{font-size:clamp(17px,1.6vw,21px)}
p{margin:0 0 1.1em}
ul,ol{margin:0 0 1.1em;padding-left:1.2em}
img,svg,video{max-width:100%;display:block}
a{color:var(--blue-deep);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--red)}
button{font-family:inherit}
table{border-collapse:collapse}
:focus-visible{outline:3px solid var(--blue);outline-offset:2px;border-radius:1px}
.site-footer :focus-visible,.announce :focus-visible,.masthead :focus-visible{outline-color:var(--yellow)}

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

/* ---------- 布局容器 ---------- */
.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--pad);
}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:absolute;left:12px;top:-80px;z-index:200;
  background:var(--ink);color:#fff;
  padding:11px 18px;font-size:13px;font-weight:700;letter-spacing:.08em;
  text-decoration:none;border-radius:2px;
  transition:top .18s var(--ease);
}
.skip-link:focus{top:12px;color:var(--yellow)}

/* ============================================================
   头部
   ============================================================ */
.site-header{position:sticky;top:0;z-index:var(--header-z)}

/* 入口公告条 */
.announce{background:var(--red);color:#fff;font-size:13.5px}
.announce__inner{
  display:flex;align-items:center;gap:14px;
  min-height:40px;padding-block:7px;
}
.announce__line{
  display:flex;align-items:center;gap:10px;
  margin:0;flex:1 1 auto;min-width:0;flex-wrap:wrap;
}
.announce__label{
  flex:none;
  background:var(--ink);color:var(--yellow);
  font-size:11px;font-weight:700;letter-spacing:.16em;
  padding:3px 9px;border-radius:2px;
}
.announce__key{font-size:13px;letter-spacing:.04em;color:rgba(255,255,255,.9)}
.announce__addr{
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.02em;
  color:#fff;border-bottom:1px solid rgba(255,255,255,.42);padding-bottom:1px;
}
.announce__toggle{
  flex:none;
  background:transparent;color:#fff;
  border:1px solid rgba(255,255,255,.55);border-radius:2px;
  font-size:12px;font-weight:700;letter-spacing:.1em;
  padding:5px 12px;cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.announce__toggle:hover{background:#fff;color:var(--red);border-color:#fff}
.announce__detail{
  overflow:hidden;max-height:7rem;
  transition:max-height 280ms var(--ease),opacity 200ms var(--ease);
}
.announce__detail p{
  margin:0;padding:2px 0 12px;
  font-size:13px;line-height:1.7;color:rgba(255,255,255,.86);
  border-top:1px solid rgba(255,255,255,.22);padding-top:10px;
  max-width:70ch;
}
[data-collapsed="true"] .announce__detail{max-height:0;opacity:0}

/* 主导航带 */
.masthead{
  position:relative;
  background:var(--white);
  border-bottom:1px solid var(--line);
}
.masthead__inner{
  display:flex;align-items:center;
  gap:clamp(10px,1.6vw,22px);
  min-height:68px;padding-block:9px;
}

.brand{
  display:inline-flex;align-items:center;gap:11px;
  flex:none;text-decoration:none;color:var(--ink);
}
.brand__mark{
  display:grid;grid-template-columns:1fr 1fr;gap:3px;
  width:26px;height:32px;flex:none;
}
.brand__mark i{display:block;border-radius:2px}
.brand__mark i:first-child{background:var(--red)}
.brand__mark i:last-child{background:var(--yellow)}
.brand__name{
  display:block;font-size:17px;font-weight:800;
  letter-spacing:.06em;line-height:1.25;color:var(--ink);
}
.brand__tag{
  display:block;font-size:10.5px;letter-spacing:.14em;
  line-height:1.45;color:var(--graphite);
}

.entry-chip{
  display:inline-flex;align-items:center;gap:7px;flex:none;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;
  color:var(--graphite);background:var(--mist);
  border:1px solid var(--line);border-left:2px solid var(--blue);
  padding:4px 10px;border-radius:2px;white-space:nowrap;
}

.status-dot{
  width:8px;height:8px;border-radius:50%;
  display:inline-block;flex:none;
  background:var(--blue);
  box-shadow:0 0 0 3px rgba(45,127,249,.18);
}
.status-dot[data-status="warn"]{background:var(--yellow);box-shadow:0 0 0 3px rgba(242,183,5,.24)}
.status-dot[data-status="changed"]{background:var(--red);box-shadow:0 0 0 3px rgba(200,16,46,.2)}

.primary-nav{margin-left:auto}
.nav-list{
  display:flex;align-items:center;gap:2px;
  list-style:none;margin:0;padding:0;
}
.nav-list a{
  position:relative;display:block;
  padding:9px 12px;font-size:14px;letter-spacing:.02em;
  color:var(--graphite);text-decoration:none;border-radius:2px;
  transition:color .18s var(--ease),background .18s var(--ease);
}
.nav-list a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;
  height:2px;background:transparent;
  transition:background .18s var(--ease);
}
.nav-list a:hover{color:var(--ink)}
.nav-list a:hover::after{background:var(--line)}
.nav-list a[aria-current="page"]{color:var(--ink);font-weight:800}
.nav-list a[aria-current="page"]::after{background:var(--red)}

.nav-toggle{
  display:none;align-items:center;gap:9px;flex:none;
  margin-left:auto;cursor:pointer;
  background:var(--ink);color:#fff;border:0;border-radius:2px;
  font-size:12.5px;font-weight:700;letter-spacing:.12em;
  padding:10px 14px;
  transition:background .18s var(--ease);
}
.nav-toggle:hover{background:var(--red)}
.nav-toggle__bars{display:grid;gap:3px;width:16px}
.nav-toggle__bars i{display:block;height:2px;background:var(--yellow)}
.nav-toggle__bars i:nth-child(2){width:11px}
.nav-toggle__bars i:nth-child(3){width:7px}

/* 阅读进度条 */
.scroll-progress{
  position:absolute;left:0;right:0;bottom:0;height:3px;
  background:transparent;pointer-events:none;
}
.scroll-progress span{
  display:block;height:100%;width:100%;
  background:var(--red);
  transform:scaleX(0);transform-origin:0 50%;
  transition:transform 90ms linear;
}

/* ============================================================
   页脚
   ============================================================ */
.site-footer{
  margin-top:clamp(48px,8vw,104px);
  background:var(--ink);color:#B9C0C7;
  font-size:13.5px;line-height:1.7;
}
.footer__top{
  display:grid;
  grid-template-columns:minmax(220px,1fr) minmax(0,2.35fr);
  gap:clamp(26px,4vw,64px);
  padding-block:clamp(38px,5.5vw,68px) clamp(26px,3.5vw,44px);
}
.footer__brand{min-width:0}
.footer__logo{
  display:inline-block;
  font-size:22px;font-weight:800;letter-spacing:.06em;
  color:#fff;text-decoration:none;
  border-bottom:3px solid var(--red);padding-bottom:4px;
}
.footer__logo:hover{color:var(--yellow);border-bottom-color:var(--yellow)}
.footer__tag{
  margin:14px 0 0;font-size:12px;letter-spacing:.14em;color:#8E979F;
}
.footer__seal{
  display:inline-block;margin:16px 0 0;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  color:var(--yellow);border:1px solid rgba(242,183,5,.42);
  padding:5px 10px;border-radius:2px;
}

.footer__cols{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:clamp(16px,2.5vw,32px);
}
.footer__col{min-width:0}
.footer__head{
  margin:0 0 14px;
  font-family:var(--font-mono);font-size:11.5px;font-weight:700;
  letter-spacing:.16em;color:var(--yellow);
  padding-bottom:9px;border-bottom:1px solid rgba(255,255,255,.14);
}
.footer__list{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.footer__list a{
  display:inline-block;
  color:#B9C0C7;font-size:13.5px;text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.footer__list a:hover{color:#fff;border-bottom-color:var(--yellow)}

.footer__meta{
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);
  gap:clamp(20px,3vw,48px);
  padding-block:clamp(22px,3vw,34px) clamp(30px,4vw,52px);
  border-top:1px solid rgba(255,255,255,.14);
}
.footer__contact-line{margin:0 0 7px;font-size:13px;color:#C7CDD3}
.footer__mono{
  font-family:var(--font-mono);font-size:12.5px;
  letter-spacing:.02em;color:#fff;
}
.footer__note{
  margin:12px 0 0;font-size:11.5px;line-height:1.75;
  letter-spacing:.02em;color:#7E868E;max-width:52ch;
}
.footer__legal{min-width:0}
.footer__icp{margin:0;font-size:13px}
.footer__icp .footer__mono{color:var(--yellow)}
.footer__copy{
  margin:14px 0 0;font-size:11.5px;letter-spacing:.06em;color:#7E868E;
  font-family:var(--font-mono);
}

/* 返回顶部 */
.to-top{
  position:fixed;right:clamp(14px,3vw,28px);bottom:clamp(14px,3vw,28px);
  z-index:90;display:inline-flex;align-items:center;gap:8px;
  background:var(--yellow);color:var(--ink);
  border:2px solid var(--ink);border-radius:2px;
  font-size:12.5px;font-weight:800;letter-spacing:.1em;
  padding:9px 14px;cursor:pointer;
  box-shadow:0 5px 0 rgba(16,20,24,.22);
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.to-top:hover{background:var(--ink);color:var(--yellow);transform:translateY(-2px)}
.to-top[hidden]{display:none}

/* ============================================================
   通用组件
   ============================================================ */
.eyebrow{
  margin:0 0 10px;
  font-family:var(--font-mono);font-size:11.5px;font-weight:700;
  letter-spacing:.2em;color:var(--red);
}
.section-no{
  font-family:var(--font-mono);
  font-size:clamp(40px,7vw,92px);
  font-weight:300;line-height:.9;letter-spacing:-.03em;
  color:var(--red);margin:0;
}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;letter-spacing:.06em;
  padding:11px 20px;border:2px solid transparent;border-radius:2px;
  text-decoration:none;cursor:pointer;background:var(--ink);color:#fff;
  transition:background .18s var(--ease),color .18s var(--ease),
             border-color .18s var(--ease),transform .18s var(--ease);
}
.btn:hover{transform:translateY(-1px)}
.btn--primary{background:var(--red);color:#fff}
.btn--primary:hover{background:var(--red-deep);color:#fff}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:#fff}
.btn--yellow{background:var(--yellow);color:var(--ink)}
.btn--yellow:hover{background:var(--ink);color:var(--yellow)}

/* 网格 */
.grid{display:grid;gap:var(--gap)}
.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))}

/* 卡片 */
.card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:2px;
  padding:clamp(18px,2.4vw,28px);
  min-width:0;
}
.card--glass{
  background:rgba(255,255,255,.72);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-color:rgba(16,20,24,.12);
}

/* 数据单元 */
.stat{display:grid;gap:3px}
.stat__label{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  color:var(--graphite);
}
.stat__value{
  font-family:var(--font-mono);
  font-size:clamp(22px,3vw,34px);font-weight:600;line-height:1.1;
  color:var(--ink);font-variant-numeric:tabular-nums;
}
.stat__value--red{color:var(--red)}
.stat__value--yellow{color:var(--yellow-deep)}

/* 标签 */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  padding:3px 9px;border:1px solid var(--line);border-radius:2px;
  background:var(--white);color:var(--graphite);
}
.tag--yellow{background:var(--yellow-pale);border-color:var(--yellow);color:#6F5300}
.tag--red{background:#fff;border-color:var(--red);color:var(--red)}

/* 筛选条 */
.filter-bar{display:flex;flex-wrap:wrap;gap:8px}
.filter-chip{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;
  padding:6px 12px;border:1px solid var(--line);border-radius:2px;
  background:var(--white);color:var(--graphite);cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.filter-chip:hover{border-color:var(--ink)}
.filter-chip[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:#fff}

/* 数据表 */
.table-wrap{
  width:100%;overflow-x:auto;
  background:var(--white);border:1px solid var(--line);border-radius:2px;
}
.table{width:100%;font-size:14px;min-width:560px}
.table th{
  position:sticky;top:0;z-index:2;
  background:var(--ink);color:#fff;
  font-family:var(--font-mono);font-size:11.5px;font-weight:700;
  letter-spacing:.1em;text-align:left;
  padding:11px 14px;white-space:nowrap;
}
.table th[data-sortable]{cursor:pointer;user-select:none}
.table th[data-sortable]::after{content:"↕";margin-left:7px;color:rgba(255,255,255,.45);font-size:10px}
.table th[data-sortable][aria-sort="ascending"]::after{content:"↑";color:var(--blue)}
.table th[data-sortable][aria-sort="descending"]::after{content:"↓";color:var(--blue)}
.table td{
  padding:11px 14px;border-bottom:1px solid var(--line);
  color:var(--graphite);vertical-align:top;
}
.table tbody tr:nth-child(even){background:var(--yellow-pale)}
.table tbody tr:last-child td{border-bottom:0}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;text-align:right}

/* 展开组 */
.disclosure{
  background:var(--white);
  border:1px solid var(--line);border-left:3px solid var(--ink);
  border-radius:2px;
}
.disclosure + .disclosure{margin-top:-1px}
.disclosure__trigger{
  display:flex;align-items:center;gap:12px;width:100%;
  background:none;border:0;cursor:pointer;text-align:left;
  font-size:15px;font-weight:700;color:var(--ink);
  padding:16px 18px;
}
.disclosure__trigger::after{
  content:"+";margin-left:auto;
  font-family:var(--font-mono);font-size:19px;line-height:1;
  color:var(--red);
}
.disclosure__trigger[aria-expanded="true"]::after{content:"–"}
.disclosure__panel{
  padding:0 18px 18px;font-size:14.5px;line-height:1.75;color:var(--graphite);
}
.disclosure__panel[hidden]{display:none}

/* 面包屑 */
.breadcrumb{
  font-size:12px;letter-spacing:.06em;color:var(--graphite);
}
.breadcrumb ol{
  display:flex;flex-wrap:wrap;gap:8px;
  list-style:none;margin:0;padding:0;
}
.breadcrumb li+li::before{content:"/";margin-right:8px;color:var(--line)}
.breadcrumb a{color:var(--blue-deep);text-decoration:none}
.breadcrumb a:hover{color:var(--red)}
.breadcrumb [aria-current="page"]{color:var(--ink);font-weight:700}

/* 正文容器 */
.prose{max-width:46rem}
.prose p{line-height:1.75;margin:0 0 1.15em}
.prose h2{margin-top:1.8em}
.prose h3{margin-top:1.5em}
.prose ul,.prose ol{line-height:1.75}
.prose blockquote{
  margin:1.4em 0;padding:16px 20px;
  background:var(--yellow-pale);border-left:3px solid var(--yellow);
  color:var(--ink);
}
.prose code{
  font-family:var(--font-mono);font-size:.92em;
  background:var(--mist);border:1px solid var(--line);
  padding:1px 5px;border-radius:2px;
}

/* 图片容器 */
.figure{
  margin:0;position:relative;overflow:hidden;
  background:var(--white);border:1px solid var(--line);border-radius:2px;
}
.figure__media{
  position:relative;display:block;width:100%;aspect-ratio:16/9;
  background-color:#EDEFF1;
  background-image:
    linear-gradient(var(--line) 1px,transparent 1px),
    linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:34px 34px;
}
.figure__media img{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;display:block;
}
.figure--wide .figure__media{aspect-ratio:21/9}
.figure--square .figure__media{aspect-ratio:1/1}
.figure__caption{
  padding:10px 14px;border-top:1px solid var(--line);
  background:var(--mist);
  font-size:11.5px;letter-spacing:.1em;color:var(--graphite);
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1020px){
  .footer__top{grid-template-columns:1fr}
  .footer__cols{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
}

@media (max-width:960px){
  .nav-toggle{display:inline-flex}
  .entry-chip{display:none}

  .primary-nav{
    position:absolute;top:100%;left:0;right:0;
    margin:0;
    background:var(--ink);
    max-height:0;overflow:hidden;visibility:hidden;
    transition:max-height 300ms var(--ease),visibility 0s linear 300ms;
  }
  .primary-nav[data-open="true"]{
    max-height:min(76vh,540px);overflow-y:auto;
    visibility:visible;
    transition:max-height 300ms var(--ease);
  }
  .nav-list{
    flex-direction:column;align-items:stretch;gap:0;
    padding:8px var(--pad) 20px;
  }
  .nav-list a{
    color:#E4E7EA;
    font-size:16px;
    padding:15px 14px;
    border-bottom:1px solid rgba(255,255,255,.1);
    border-radius:0;
  }
  .nav-list a::after{display:none}
  .nav-list a:hover{background:rgba(255,255,255,.06);color:#fff}
  .nav-list a[aria-current="page"]{
    color:var(--yellow);font-weight:800;
    border-left:3px solid var(--yellow);padding-left:11px;
  }

  .masthead__inner{min-height:62px}
  .brand__tag{display:none}

  .grid--3,.grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer__meta{grid-template-columns:1fr}
}

@media (max-width:760px){
  .announce__inner{flex-wrap:wrap;gap:8px 12px}
  .announce__line{gap:8px}
  .announce__toggle{order:3}
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr}
  .footer__cols{grid-template-columns:1fr;gap:22px}
  .footer__head{margin-bottom:10px}
  .to-top{font-size:11.5px;padding:8px 12px}
}

@media (max-width:420px){
  .brand__mark{width:22px;height:27px}
  .brand__name{font-size:15.5px}
}

/* ---------- 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;
  }
}