/* ============ 凯运体育赛场 · 共享站点样式 /assets/site.css ============ */

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img,svg{max-width:100%}
button{font:inherit;color:inherit}
a{color:inherit}
html,body{min-height:100%}

/* ---------- tokens ---------- */
:root{
  --ink-900:#061426;
  --ink-850:#04101f;
  --ink-800:#0B1F3A;
  --ink-700:#10294A;
  --line:#24415F;
  --cyan:#35F2E2;
  --orange:#FF6B2C;
  --mint:#6EF0B8;
  --red:#FF4D5E;
  --text:#EAF6FF;
  --muted:#9FB6CF;

  --font-display:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-condensed:"Barlow Condensed","Oswald","Noto Sans SC","PingFang SC",system-ui,sans-serif;
  --font-mono:"IBM Plex Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;

  --shell:1240px;
  --radius-lg:26px;
  --radius-md:16px;
  --radius-pill:999px;

  --shadow-panel:0 24px 60px -36px rgba(2,8,18,.95);
  --shadow-action:0 14px 30px -18px rgba(255,107,44,.85);
  --ease:cubic-bezier(.22,.68,.28,1);
}

/* ---------- base typography ---------- */
body{
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.7;
  color:var(--text);
  background-color:var(--ink-900);
  background-image:
    radial-gradient(1200px 620px at 12% -12%,rgba(53,242,226,.12),transparent 62%),
    radial-gradient(900px 520px at 96% -4%,rgba(255,107,44,.11),transparent 58%),
    linear-gradient(180deg,#071A2F 0%,#061426 46%,#04101F 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;line-height:1.2;letter-spacing:-.015em}
p{text-wrap:pretty}
::selection{background:rgba(53,242,226,.32);color:#04141f}

/* ---------- focus ---------- */
:where(a,button,summary,[tabindex]):focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
  border-radius:8px;
}
#main-content:focus{outline:none}

/* ---------- skip link ---------- */
.skip-link{
  position:fixed;
  top:10px;left:10px;z-index:300;
  display:inline-block;
  padding:10px 20px;
  border-radius:var(--radius-pill);
  background:var(--cyan);
  color:#04141f;
  font-weight:700;
  font-size:14px;
  text-decoration:none;
  transform:translateY(-160%);
  transition:transform .22s var(--ease);
}
.skip-link:focus,.skip-link:focus-visible{transform:translateY(0)}

/* ---------- layout shell ---------- */
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:24px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;
  border:1px solid transparent;
  border-radius:var(--radius-pill);
  font-family:var(--font-body);
  font-size:15px;font-weight:600;line-height:1.2;
  text-decoration:none;cursor:pointer;
  transition:transform .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-primary{background:var(--orange);color:#1A0D05;box-shadow:var(--shadow-action)}
.btn-primary:hover{background:#FF854F;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:rgba(53,242,226,.07);border-color:rgba(53,242,226,.42);color:var(--cyan)}
.btn-ghost:hover{background:rgba(53,242,226,.16);border-color:var(--cyan)}
.btn-sm{padding:8px 16px;font-size:13.5px}

/* ============ HEADER ============ */
.site-header{
  position:relative;z-index:40;
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,31,58,.98) 0%,rgba(8,23,43,.98) 60%,rgba(6,20,38,.99) 100%);
  box-shadow:0 30px 60px -52px rgba(0,0,0,.95);
}

/* 顶部信号条 */
.header-status{
  background:rgba(4,16,31,.86);
  border-bottom:1px solid rgba(36,65,95,.7);
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.1em;
}
.header-status-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding-block:8px;
}
.status-line{display:flex;align-items:center;gap:8px;color:var(--cyan);margin:0}
.status-dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--mint);
  box-shadow:0 0 0 4px rgba(110,240,184,.16);
  animation:statusPulse 2.6s ease-in-out infinite;
}
.status-meta{margin:0;color:var(--muted)}
@keyframes statusPulse{
  0%,100%{box-shadow:0 0 0 4px rgba(110,240,184,.16)}
  50%{box-shadow:0 0 0 7px rgba(110,240,184,.05)}
}

/* 刊头 */
.header-inner{padding-bottom:4px}
.masthead{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:18px;
  padding:18px 0 14px;
}
.masthead-tag{
  grid-column:1;justify-self:start;margin:0;
  font-family:var(--font-mono);
  font-size:11.5px;letter-spacing:.24em;
  color:var(--muted);
}
.masthead-brand{
  grid-column:2;justify-self:center;
  display:inline-flex;align-items:center;gap:12px;
  text-decoration:none;
}
.brand-mark{
  display:grid;place-items:center;
  width:44px;height:44px;flex:none;
  border-radius:14px;
  background:linear-gradient(140deg,var(--cyan) 0%,#1AA9C9 100%);
  color:#04141f;
  font-family:var(--font-condensed);
  font-weight:700;font-size:18px;letter-spacing:.04em;
  transform:skewX(-6deg);
  box-shadow:0 14px 26px -18px rgba(53,242,226,.9);
}
.brand-name{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(21px,2.4vw,30px);
  letter-spacing:.03em;
  color:var(--text);
}
.masthead-tools{
  grid-column:3;justify-self:end;
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
}
.search-entry{
  display:inline-flex;align-items:center;gap:9px;
  padding:8px 15px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:rgba(16,41,74,.62);
  color:var(--muted);
  font-size:13px;text-decoration:none;
  transition:border-color .2s var(--ease),color .2s var(--ease),background-color .2s var(--ease);
}
.search-entry:hover,.search-entry:focus-visible{border-color:var(--cyan);color:var(--text);background:rgba(16,41,74,.9)}
.search-entry-icon{
  position:relative;flex:none;
  width:12px;height:12px;
  border:2px solid currentColor;border-radius:50%;
}
.search-entry-icon::after{
  content:"";position:absolute;right:-4px;bottom:-3px;
  width:6px;height:2px;border-radius:2px;
  background:currentColor;transform:rotate(45deg);
}
.search-entry-label{white-space:nowrap}

/* 栏目行 */
.nav-row{
  display:flex;align-items:center;gap:16px;
  padding:8px 0;
  border-top:1px solid rgba(36,65,95,.55);
  border-bottom:1px solid rgba(36,65,95,.55);
}
.nav-label{
  order:1;margin:0;
  font-family:var(--font-mono);
  font-size:10.5px;letter-spacing:.3em;
  color:var(--muted);white-space:nowrap;
}
.primary-nav{order:3;flex:1 1 auto;min-width:0}
.nav-list{
  display:flex;flex-wrap:wrap;justify-content:center;gap:4px;
  margin:0;padding:0;
}
.nav-item{margin:0}
.nav-link{
  display:block;
  padding:9px 16px;
  border-radius:var(--radius-pill);
  color:var(--muted);
  font-size:15px;font-weight:500;text-decoration:none;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(53,242,226,.1)}
.nav-link[aria-current="page"]{
  color:#04141f;
  background:var(--cyan);
  font-weight:700;
  box-shadow:0 12px 24px -16px rgba(53,242,226,.95);
}

/* 移动端开关 */
.nav-toggle{
  order:2;
  display:none;align-items:center;gap:10px;
  padding:10px 16px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:rgba(16,41,74,.85);
  color:var(--text);
  font-size:14px;font-weight:600;
  cursor:pointer;
}
.nav-toggle-bars{display:grid;gap:3px;width:16px}
.nav-toggle-bars span{display:block;height:2px;border-radius:2px;background:var(--cyan)}
.nav-toggle[aria-expanded="true"]{border-color:var(--orange);color:var(--orange);background:rgba(255,107,44,.12)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span{background:var(--orange)}

/* 快线索引条 */
.rail{
  display:flex;align-items:center;gap:10px;
  padding:10px 0 14px;
}
.rail-label{
  flex:none;
  font-family:var(--font-mono);
  font-size:10.5px;letter-spacing:.28em;
  color:rgba(159,182,207,.75);
}
.rail-track{
  flex:1 1 auto;min-width:0;
  display:flex;gap:8px;
  margin:0;padding:0 2px 2px;
  overflow-x:auto;
  scrollbar-width:none;
  scroll-snap-type:x proximity;
  -webkit-overflow-scrolling:touch;
}
.rail-track::-webkit-scrollbar{display:none}
.rail-chip{
  display:inline-block;
  padding:6px 14px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:rgba(11,31,58,.72);
  color:var(--muted);
  font-size:13.5px;white-space:nowrap;text-decoration:none;
  scroll-snap-align:start;
  transition:border-color .2s var(--ease),color .2s var(--ease),background-color .2s var(--ease);
}
.rail-chip:hover,.rail-chip:focus-visible{border-color:var(--cyan);color:var(--text);background:rgba(53,242,226,.1)}
.rail-btn{
  flex:none;
  display:inline-grid;place-items:center;
  width:30px;height:30px;
  border-radius:50%;
  border:1px solid rgba(53,242,226,.4);
  background:rgba(53,242,226,.08);
  color:var(--cyan);
  font-size:16px;line-height:1;
  cursor:pointer;
  transition:background-color .2s var(--ease),opacity .2s var(--ease);
}
.rail-btn:hover:not(:disabled){background:rgba(53,242,226,.2)}
.rail-btn:disabled{opacity:.32;cursor:not-allowed}

/* ============ FOOTER ============ */
.site-footer{
  margin-top:64px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,31,58,.92) 0%,rgba(6,20,38,1) 78%);
  color:var(--muted);
}
.footer-inner{padding-top:clamp(36px,4.5vw,56px);padding-bottom:24px}
.footer-top{
  display:grid;
  grid-template-columns:minmax(240px,1.5fr) 1fr 1fr minmax(250px,1.5fr);
  gap:clamp(22px,3vw,36px);
  padding-bottom:30px;
  border-bottom:1px solid rgba(36,65,95,.6);
}
.footer-brand{
  margin:0 0 12px;
  font-family:var(--font-display);font-weight:800;
  font-size:22px;letter-spacing:.03em;color:var(--text);
}
.footer-statement{
  margin:0 0 18px;
  max-width:34ch;
  font-size:14px;line-height:1.8;
  color:var(--muted);
}
.footer-flagrow{display:flex;flex-wrap:wrap;gap:8px}
.flag{
  padding:4px 12px;
  border:1px solid transparent;
  border-radius:var(--radius-pill);
  font-family:var(--font-mono);
  font-size:11.5px;letter-spacing:.06em;
}
.flag-cyan{background:rgba(53,242,226,.12);border-color:rgba(53,242,226,.42);color:var(--cyan)}
.flag-orange{background:rgba(255,107,44,.12);border-color:rgba(255,107,44,.42);color:var(--orange)}
.flag-mint{background:rgba(110,240,184,.12);border-color:rgba(110,240,184,.4);color:var(--mint)}
.footer-heading{
  margin:0 0 14px;
  font-family:var(--font-mono);
  font-size:10.5px;letter-spacing:.28em;
  color:var(--cyan);font-weight:500;
}
.footer-links{display:grid;gap:9px}
.footer-link{
  color:var(--muted);
  font-size:14.5px;text-decoration:none;
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.footer-link:hover,.footer-link:focus-visible{color:var(--text);padding-left:4px}
.contact-list{display:grid;gap:10px;margin-bottom:12px}
.contact-item{display:grid;grid-template-columns:46px 1fr;gap:8px;font-size:13.5px}
.contact-key{
  padding-top:3px;
  font-family:var(--font-mono);
  font-size:10.5px;letter-spacing:.14em;
  color:rgba(159,182,207,.8);
}
.contact-value{color:var(--text);line-height:1.6;overflow-wrap:anywhere}
.contact-note{
  margin:0;
  font-size:12.5px;line-height:1.75;
  color:rgba(159,182,207,.82);
}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding-top:20px;
  font-family:var(--font-mono);
  font-size:12px;letter-spacing:.05em;
}
.footer-icp{margin:0;color:rgba(159,182,207,.85)}
.footer-copy{margin:0;color:rgba(159,182,207,.85)}
.footer-copy [data-year]{color:var(--cyan)}

/* ============ 通用页面组件 ============ */
.section{padding-block:clamp(40px,5vw,72px)}
.section-head{display:grid;gap:10px;max-width:64ch;margin-bottom:24px}
.eyebrow{
  margin:0;
  font-family:var(--font-mono);
  font-size:11.5px;letter-spacing:.26em;
  color:var(--cyan);text-transform:uppercase;
}
.section-title{
  margin:0;
  font-family:var(--font-display);font-weight:800;
  font-size:clamp(26px,3vw,38px);
  color:var(--text);
}
.lead{
  margin:0;
  max-width:68ch;
  font-size:clamp(15px,1.4vw,17px);line-height:1.8;
  color:var(--muted);
}
.divider{
  height:1px;border:0;margin:32px 0;
  background:linear-gradient(90deg,transparent,var(--line),transparent);
}

/* 面包屑 */
.breadcrumbs{padding-top:18px}
.breadcrumb-list{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--font-mono);
  font-size:11.5px;letter-spacing:.08em;
  color:var(--muted);
}
.breadcrumb-link{color:var(--muted);text-decoration:none}
.breadcrumb-link:hover,.breadcrumb-link:focus-visible{color:var(--cyan)}
.breadcrumb-sep{color:var(--line)}
.breadcrumb-current{color:var(--text)}

/* Bento / 网格 */
.bento{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:clamp(12px,1.6vw,20px);
}
.span-full{grid-column:1/-1}
.grid-auto{
  display:grid;gap:16px;
  grid-template-columns:repeat(auto-fit,minmax(230px,1fr));
}

/* 卡片 */
.card{
  position:relative;
  padding:clamp(18px,2vw,26px);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:linear-gradient(160deg,rgba(16,41,74,.94) 0%,rgba(11,31,58,.94) 100%);
  box-shadow:var(--shadow-panel);
  overflow:hidden;
}
.card::before{
  content:"";position:absolute;inset:0 auto auto 0;
  width:64px;height:3px;
  background:linear-gradient(90deg,var(--cyan),transparent);
  opacity:.9;
}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
.card-title{
  margin:0;
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(19px,1.8vw,24px);
  color:var(--text);
}
.card-meta{
  margin:0;
  font-family:var(--font-mono);
  font-size:11.5px;letter-spacing:.08em;
  color:var(--muted);
}
.card-body{margin:0;font-size:15px;line-height:1.75;color:var(--muted)}

/* 标签 */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;
  border:1px solid transparent;
  border-radius:var(--radius-pill);
  font-family:var(--font-mono);
  font-size:11.5px;letter-spacing:.06em;
  white-space:nowrap;
}
.tag-cyan{background:rgba(53,242,226,.12);border-color:rgba(53,242,226,.42);color:var(--cyan)}
.tag-orange{background:rgba(255,107,44,.12);border-color:rgba(255,107,44,.42);color:var(--orange)}
.tag-mint{background:rgba(110,240,184,.12);border-color:rgba(110,240,184,.4);color:var(--mint)}
.tag-red{background:rgba(255,77,94,.12);border-color:rgba(255,77,94,.42);color:var(--red)}

/* 等宽数字 */
.data-num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
}

/* 图片容器（页面阶段放置占位图） */
.media-frame{
  position:relative;isolation:isolate;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:linear-gradient(140deg,var(--ink-700) 0%,var(--ink-850) 100%);
}
.media-frame img{display:block;width:100%;height:100%;object-fit:cover}
.media-frame::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background-image:
    linear-gradient(rgba(53,242,226,.14) 1px,transparent 1px),
    linear-gradient(90deg,rgba(53,242,226,.14) 1px,transparent 1px);
  background-size:44px 44px;
  opacity:.3;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
}
.media-frame--16x9{aspect-ratio:16/9}
.media-frame--21x9{aspect-ratio:21/9}
.media-frame--4x3{aspect-ratio:4/3}
.media-frame--1x1{aspect-ratio:1/1}
.media-note{
  position:absolute;left:16px;bottom:16px;z-index:2;
  padding:6px 13px;
  border:1px solid rgba(53,242,226,.4);
  border-radius:var(--radius-pill);
  background:rgba(6,20,38,.8);
  color:var(--cyan);
  font-family:var(--font-mono);
  font-size:11px;letter-spacing:.1em;
}

/* 长文 */
.prose{max-width:68ch;font-size:16px;line-height:1.8;color:var(--text)}
.prose p{margin-bottom:1em}
.prose h2,.prose h3{font-family:var(--font-display);margin:1.6em 0 .5em;color:var(--text)}
.prose ul,.prose ol{padding-left:1.2em;margin-bottom:1em;color:var(--muted)}
.prose li{margin-bottom:.4em}

/* 滚动显现 */
[data-reveal]{transition:opacity .34s var(--ease),transform .34s var(--ease)}
.has-js [data-reveal]:not(.reveal-in){opacity:0;transform:translateY(16px)}

/* ============ 响应式 ============ */
@media (max-width:1020px){
  .masthead{grid-template-columns:1fr;justify-items:start;gap:12px;padding:16px 0 12px}
  .masthead-tag{grid-column:1;font-size:10.5px;letter-spacing:.2em}
  .masthead-brand{grid-column:1;justify-self:start}
  .masthead-tools{grid-column:1;justify-self:stretch;flex-wrap:wrap}
  .search-entry{flex:1 1 220px;justify-content:flex-start}
  .nav-row{flex-wrap:wrap;justify-content:space-between;gap:10px}
  .nav-toggle{display:inline-flex}
  .primary-nav{flex-basis:100%}
  .nav-list{
    display:none;
    width:100%;
    grid-template-columns:1fr;
    gap:6px;
    padding:10px 0 6px;
  }
  .primary-nav[data-open="true"] .nav-list{display:grid}
  .nav-link{
    display:block;
    padding:12px 16px;
    border:1px solid var(--line);
    border-radius:var(--radius-md);
    background:rgba(16,41,74,.78);
    color:var(--text);
    font-size:15px;
  }
  .nav-link[aria-current="page"]{background:var(--cyan);border-color:var(--cyan);color:#04141f}
  .footer-top{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:640px){
  .shell{padding-inline:16px}
  .status-meta{display:none}
  .brand-mark{width:38px;height:38px;border-radius:12px;font-size:16px}
  .masthead-tools .btn-sm{flex:1 1 auto}
  .rail-label{display:none}
  .footer-top{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
  .section{padding-block:36px}
}

/* ============ 减弱动效 ============ */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .has-js [data-reveal]:not(.reveal-in){opacity:1;transform:none}
  .status-dot{animation:none}
  .btn:hover,.footer-link:hover{transform:none;padding-left:0}
}