/* ============================================================
   半岛体育 · 共享站点样式 /assets/site.css
   夜场转播指挥台：深蓝环境 + 纸色阅读层 + 信号色数据高亮
   ============================================================ */

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

:root{
  --night:#071426;
  --night-2:#0B1E33;
  --ink:#05101F;
  --paper:#F3EBDD;
  --paper-2:#E4D8C6;
  --orange:#FF6B2C;
  --green:#2FBF71;
  --cyan:#39E6E0;
  --mist:#A9B8C9;
  --chalk:#F7FAFC;
  --amber:#FFB020;
  --ink-text:#12212F;
  --body-text:#D8E2ED;

  --header-h:76px;
  --page-max:1200px;
  --gutter:clamp(18px,4vw,48px);

  --radius-lg:28px;
  --radius-md:18px;
  --radius-pill:999px;

  --font-display:"Helvetica Neue","Arial Narrow","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:ui-monospace,"SF Mono","JetBrains Mono","Roboto Mono",Menlo,Consolas,"Courier New",monospace;
  --font-serif:"Songti SC","Noto Serif SC",Georgia,"Times New Roman",serif;

  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- 基础排版 ---------- */
body{
  min-height:100vh;
  background-color:var(--night);
  background-image:
    radial-gradient(120% 80% at 50% -12%, rgba(57,230,224,.10), transparent 62%),
    repeating-linear-gradient(90deg, rgba(169,184,201,.05) 0 1px, transparent 1px 128px);
  background-repeat:no-repeat,repeat;
  color:var(--body-text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

::selection{background:var(--orange);color:#071426}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.06;
  letter-spacing:-.02em;
  color:var(--chalk);
  text-wrap:balance;
}
h1{font-size:clamp(40px,7vw,88px)}
h2{font-size:clamp(28px,4vw,48px)}
h3{font-size:clamp(20px,2.4vw,28px);line-height:1.2}
h4{font-size:18px;line-height:1.35;font-weight:700}

small{font-size:13px}
strong{font-weight:700;color:var(--chalk)}

:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

[id]{scroll-margin-top:calc(var(--header-h) + 18px)}

main{padding-top:var(--header-h)}
.main--flush{padding-top:0}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:fixed;top:10px;left:10px;z-index:400;
  transform:translateY(-160%);
  padding:11px 20px;border-radius:var(--radius-pill);
  background:var(--paper);color:var(--ink);
  font-family:var(--font-body);font-size:14px;font-weight:700;letter-spacing:.06em;
  transition:transform .2s var(--ease);
}
.skip-link:focus,
.skip-link:focus-visible{transform:translateY(0);outline:2px solid var(--cyan);outline-offset:3px}

/* ---------- 头部 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  color:var(--chalk);
  background:linear-gradient(180deg, rgba(5,16,31,.78), rgba(5,16,31,0));
  border-bottom:1px solid transparent;
  transition:background-color .18s linear, border-color .18s linear, box-shadow .18s linear;
}
.site-header[data-scrolled]{
  background:rgba(5,16,31,.94);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom-color:rgba(57,230,224,.22);
  box-shadow:0 14px 34px rgba(2,8,16,.45);
}

.header-inner{
  width:100%;max-width:var(--page-max);
  margin-inline:auto;
  padding-inline:var(--gutter);
  height:var(--header-h);
  display:flex;align-items:center;
  gap:clamp(14px,3vw,36px);
}

/* 品牌 */
.brand{display:flex;flex-direction:column;gap:4px;line-height:1;flex:0 0 auto}
.brand-mark{
  display:inline-flex;align-items:baseline;
  font-family:var(--font-display);
  font-size:22px;font-weight:800;letter-spacing:-.035em;
  color:var(--chalk);
}
.brand-accent{color:var(--orange);margin-left:1px}
.brand-line{
  font-size:10px;line-height:1.2;
  letter-spacing:.24em;
  color:var(--mist);
  text-transform:uppercase;
}
.brand:hover .brand-mark{color:var(--cyan)}
.brand:hover .brand-accent{color:var(--orange)}

/* 导航 */
.site-nav{
  display:flex;align-items:center;
  gap:clamp(12px,2vw,28px);
  margin-left:auto;
}
.nav-list{display:flex;align-items:center;gap:clamp(10px,1.6vw,24px)}
.nav-link{
  position:relative;display:inline-block;
  padding:9px 2px;
  font-size:14px;letter-spacing:.06em;color:#C7D4E2;
  transition:color .18s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  border-radius:2px;background:var(--orange);
  transform:scaleX(0);transform-origin:left center;
  transition:transform .18s var(--ease);
}
.nav-link:hover,.nav-link:focus-visible{color:var(--chalk)}
.nav-link:hover::after,.nav-link:focus-visible::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--chalk)}
.nav-link[aria-current="page"]::after{transform:scaleX(1)}

.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 20px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(255,107,44,.55);
  color:var(--orange);
  font-size:13px;font-weight:600;letter-spacing:.08em;white-space:nowrap;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.nav-cta:hover,.nav-cta:focus-visible{background:var(--orange);border-color:var(--orange);color:#071426}

/* 移动端按钮 */
.nav-toggle{
  display:none;align-items:center;gap:10px;
  margin-left:auto;padding:8px 2px;
  color:var(--chalk);
  font-size:12px;letter-spacing:.18em;
}
.nav-toggle-box{position:relative;display:block;width:22px;height:14px}
.nav-toggle-bar{
  position:absolute;left:0;width:100%;height:2px;border-radius:2px;
  background:currentColor;
  transition:transform .2s var(--ease), top .2s var(--ease);
}
.nav-toggle-bar:nth-child(1){top:0}
.nav-toggle-bar:nth-child(2){top:12px}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1){top:6px;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2){top:6px;transform:rotate(-45deg)}

/* 滚动脉冲线 */
.scroll-pulse{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan),var(--green) 46%,var(--orange));
  opacity:.9;pointer-events:none;
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(56px,8vw,120px);
  background:var(--ink);
  border-top:1px solid rgba(57,230,224,.18);
  color:#C3D0DE;
  overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(90% 60% at 20% 0%, rgba(47,191,113,.10), transparent 60%),
    repeating-linear-gradient(90deg, rgba(169,184,201,.05) 0 1px, transparent 1px 96px);
}
.footer-inner{
  position:relative;
  width:100%;max-width:var(--page-max);
  margin-inline:auto;
  padding:clamp(44px,6vw,80px) var(--gutter) 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr .8fr .95fr 1.35fr;
  gap:clamp(24px,4vw,56px);
  padding-bottom:clamp(34px,4vw,56px);
}
.footer-brand .brand-mark{font-size:28px}
.footer-brand .brand-line{color:rgba(169,184,201,.9)}
.footer-summary{
  margin-top:18px;
  max-width:34ch;
  font-size:14px;line-height:1.8;
  color:var(--mist);
}
.footer-col{min-width:0}
.footer-title{
  display:flex;align-items:baseline;gap:10px;
  font-family:var(--font-body);
  font-size:12px;font-weight:600;
  letter-spacing:.2em;
  color:var(--mist);
  margin-bottom:18px;
}
.footer-num{
  font-family:var(--font-mono);
  font-size:11px;letter-spacing:.12em;
  color:var(--cyan);
}
.footer-links li + li{margin-top:12px}
.footer-link{
  font-size:14px;color:#C3D0DE;
  text-decoration:underline;
  text-decoration-color:transparent;
  text-underline-offset:5px;
  transition:color .18s var(--ease),text-decoration-color .18s var(--ease);
}
.footer-link:hover,.footer-link:focus-visible{color:var(--chalk);text-decoration-color:var(--orange)}

.footer-contact li + li{margin-top:12px}
.footer-contact-line{
  font-size:13px;line-height:1.75;
  color:var(--mist);
  word-break:break-word;
}
.footer-contact-line--note{
  padding:12px 14px;
  border-radius:14px;
  background:rgba(169,184,201,.08);
  border-left:2px solid var(--amber);
  color:#B9C7D7;
  font-size:12.5px;
}

.footer-legal{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:14px;
  padding-block:22px;
  border-top:1px solid rgba(169,184,201,.16);
}
.footer-legal-text{
  font-size:12px;letter-spacing:.06em;
  color:rgba(169,184,201,.85);
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;
  border:1px solid rgba(169,184,201,.4);
  border-radius:var(--radius-pill);
  color:var(--chalk);
  font-size:12px;letter-spacing:.12em;
  transition:border-color .18s var(--ease),color .18s var(--ease),background-color .18s var(--ease);
}
.to-top:hover,.to-top:focus-visible{border-color:var(--cyan);color:var(--cyan);background:rgba(57,230,224,.08)}

/* ---------- 容器与节奏 ---------- */
.container{
  width:100%;max-width:var(--page-max);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.container--narrow{max-width:860px}
.section{padding-block:clamp(52px,7vw,110px)}
.section--tight{padding-block:clamp(30px,4vw,56px)}

.rule{height:1px;border:0;margin-block:clamp(28px,4vw,56px);background:rgba(169,184,201,.18)}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);
  font-size:12px;letter-spacing:.18em;
  color:var(--cyan);
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:currentColor}

.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:18px;
  margin-bottom:clamp(22px,3vw,44px);
}
.section-title{margin-top:12px}
.section-index{
  font-family:var(--font-mono);
  font-size:13px;letter-spacing:.16em;
  color:var(--orange);
}
.section-note{
  max-width:34ch;
  font-size:14px;line-height:1.75;
  color:var(--mist);
}

/* ---------- 网格 ---------- */
.grid{display:grid;gap:clamp(16px,2.4vw,32px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--split{grid-template-columns:minmax(0,1fr) minmax(0,1.4fr)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 26px;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-size:14px;font-weight:600;letter-spacing:.08em;line-height:1;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.btn:hover,.btn:focus-visible{transform:translateY(-2px)}
.btn--primary{background:var(--orange);border-color:var(--orange);color:#071426}
.btn--primary:hover,.btn--primary:focus-visible{background:#FF834F;border-color:#FF834F}
.btn--ghost{border-color:rgba(169,184,201,.45);color:var(--chalk)}
.btn--ghost:hover,.btn--ghost:focus-visible{border-color:var(--cyan);color:var(--cyan)}
.btn--sm{padding:10px 18px;font-size:13px}

/* ---------- 标签 ---------- */
.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(169,184,201,.32);
  color:var(--mist);
  font-size:12px;letter-spacing:.08em;line-height:1.4;
  white-space:nowrap;
}
.tag--orange{color:var(--orange);border-color:rgba(255,107,44,.5);background:rgba(255,107,44,.1)}
.tag--green{color:var(--green);border-color:rgba(47,191,113,.45);background:rgba(47,191,113,.1)}
.tag--cyan{color:var(--cyan);border-color:rgba(57,230,224,.4);background:rgba(57,230,224,.1)}

/* ---------- 主题筛选 ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;padding-block:4px}
.chip{
  padding:9px 18px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(169,184,201,.32);
  color:#C4D2E0;
  font-size:13px;letter-spacing:.06em;line-height:1.4;
  transition:background-color .12s var(--ease),border-color .12s var(--ease),color .12s var(--ease);
}
.chip:hover,.chip:focus-visible{border-color:var(--cyan);color:var(--chalk)}
.chip[aria-pressed="true"]{background:var(--orange);border-color:var(--orange);color:#071426;font-weight:600}

.copy-btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(169,184,201,.35);
  color:var(--mist);
  font-size:12px;letter-spacing:.1em;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.copy-btn:hover,.copy-btn:focus-visible{color:var(--chalk);border-color:var(--cyan)}
.copy-btn[data-copied]{color:var(--green);border-color:var(--green)}

/* ---------- 卡片 ---------- */
.card{
  display:flex;flex-direction:column;gap:14px;
  padding:clamp(20px,2.4vw,30px);
  border-radius:var(--radius-md);
  background:var(--night-2);
  border:1px solid rgba(169,184,201,.16);
  transition:border-color .18s var(--ease),transform .18s var(--ease);
}
.card:hover{border-color:rgba(57,230,224,.4);transform:translateY(-3px)}
.card--paper{background:var(--paper);border-color:rgba(5,16,31,.14);color:var(--ink-text)}
.card--paper h3,.card--paper h4,.card--paper h2{color:#0A1826}

.paper-panel{
  background:var(--paper);
  background-image:
    repeating-linear-gradient(0deg, rgba(18,33,47,.035) 0 1px, transparent 1px 4px);
  color:var(--ink-text);
  border-radius:var(--radius-lg);
  padding:clamp(24px,4vw,56px);
}
.paper-panel h1,.paper-panel h2,.paper-panel h3,.paper-panel h4{color:#0A1826}

/* ---------- 长文 ---------- */
.prose{max-width:36em;font-size:16.5px;line-height:1.85;color:#1B2A38}
.prose p + p{margin-top:1em}
.prose h2,.prose h3{
  font-family:var(--font-serif);
  font-weight:700;letter-spacing:0;line-height:1.35;
  margin-top:1.7em;margin-bottom:.5em;
  color:#0A1826;
}
.prose ul,.prose ol{list-style:disc;padding-left:1.3em;margin-block:.8em}
.prose li{margin-block:.4em}
.prose a{text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--orange)}
.prose strong{color:#0A1826}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  margin-bottom:20px;
  font-size:12px;letter-spacing:.1em;
  color:var(--mist);
}
.breadcrumb a{color:var(--mist);transition:color .18s var(--ease)}
.breadcrumb a:hover,.breadcrumb a:focus-visible{color:var(--cyan)}
.breadcrumb-sep{color:rgba(169,184,201,.5)}
.breadcrumb [aria-current="page"]{color:var(--chalk)}

/* ---------- 图片容器 ---------- */
.media-frame{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  background:var(--night-2);
  border:1px solid rgba(169,184,201,.16);
  aspect-ratio:16 / 10;
}
.media-frame img,
.media-frame picture{width:100%;height:100%;display:block}
.media-frame img{object-fit:cover;object-position:center}
.media-frame--wide{aspect-ratio:21 / 9}
.media-frame--tall{aspect-ratio:3 / 4}
.media-frame--square{aspect-ratio:1 / 1}
.media-frame--shade::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(5,16,31,0) 38%,rgba(5,16,31,.62));
}

/* ---------- 统计 ---------- */
.stat-grid{
  display:grid;gap:clamp(16px,2.4vw,32px);
  grid-template-columns:repeat(auto-fit,minmax(140px,1fr));
}
.stat{display:flex;flex-direction:column;gap:6px}
.stat-num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(28px,3.4vw,44px);
  font-weight:600;line-height:1;
  letter-spacing:-.01em;
  color:var(--cyan);
}
.stat-label{font-size:12px;letter-spacing:.14em;color:var(--mist)}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}

/* ---------- 显现 ---------- */
.js [data-reveal]{
  opacity:0;transform:translateY(8px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
.js [data-reveal].is-revealed{opacity:1;transform:none}

/* ---------- 平板 ---------- */
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr}
  .footer-col--contact{grid-column:1 / -1}
  .footer-summary{max-width:52ch}
}

/* ---------- 移动导航断点 ---------- */
@media (max-width:960px){
  :root{--header-h:64px}

  .header-inner{gap:12px}

  .nav-toggle{display:inline-flex}

  .site-nav{
    position:fixed;
    top:var(--header-h);left:0;right:0;
    flex-direction:column;align-items:stretch;
    gap:0;margin:0;
    padding:10px var(--gutter) 24px;
    max-height:calc(100dvh - var(--header-h));
    overflow-y:auto;
    background:var(--ink);
    border-bottom:1px solid rgba(57,230,224,.22);
    box-shadow:0 24px 48px rgba(2,8,16,.6);
    opacity:0;visibility:hidden;pointer-events:none;
    transform:translateY(-10px);
    transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s var(--ease);
  }
  .site-nav[data-open]{
    opacity:1;visibility:visible;pointer-events:auto;
    transform:none;
  }

  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-link{
    display:block;
    padding:15px 2px;
    font-size:16px;letter-spacing:.08em;
    border-bottom:1px solid rgba(169,184,201,.14);
  }
  .nav-link::after{display:none}
  .nav-link[aria-current="page"]{
    color:var(--orange);
    box-shadow:inset 3px 0 0 var(--orange);
    padding-left:14px;
  }

  .nav-cta{
    width:100%;margin-top:18px;padding:14px 20px;font-size:14px;
  }

  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
  .footer-col--contact{grid-column:1 / -1}
}

/* ---------- 小屏 ---------- */
@media (max-width:720px){
  .grid--2,.grid--3,.grid--split{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:1fr}
  .footer-brand,.footer-col--contact{grid-column:auto}
  .footer-legal{flex-direction:column;align-items:flex-start}
  .to-top{align-self:flex-start}
  .paper-panel{padding:22px 18px}
  .section-head{flex-direction:column;align-items:flex-start}
}

@media (max-width:420px){
  .brand-mark{font-size:19px}
  .brand-line{font-size:9px;letter-spacing:.2em}
  .btn{padding:12px 20px;font-size:13px}
}

/* ---------- 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;
    scroll-behavior:auto !important;
  }
  .js [data-reveal]{opacity:1;transform:none}
  .card:hover{transform:none}
  .btn:hover,.btn:focus-visible{transform:none}
  .scroll-pulse{transition:none}
}