/* ================================================================
   完美体育365 / 全站共享样式 site.css
   设计语言：体育数据驾驶舱 · 深空蓝 + 电光橙 + 活力绿
   ================================================================ */

/* ---------- 1. 设计变量 ---------- */
:root{
  --primary-bg:#0a1e3d;
  --secondary-bg:#13294b;
  --accent-orange:#ff6a00;
  --accent-green:#00c853;
  --light-bg:#f5f6f8;
  --dark-text:#1a1a2e;
  --light-text:#ffffff;
  --muted-text:#a0b0c0;
  --muted-on-light:#5b6b7c;
  --border-dark:#2a3b5a;
  --border-light:#d0d8e0;
  --data-blue:#2196f3;
  --data-orange:#ff9800;
  --font-heading:'Anton','Arial Black','PingFang SC','Microsoft YaHei',sans-serif;
  --font-body:'Noto Sans SC','Source Han Sans SC','Microsoft YaHei',sans-serif;
  --font-numeric:'JetBrains Mono','Roboto Mono','Courier New',monospace;
  --nav-width:264px;
  --header-height:64px;
  --container-max:1200px;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:10px;
  --transition:.3s cubic-bezier(.4,0,.2,1);
}

/* ---------- 2. Reset 与基础排版 ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:var(--header-height)}
body{
  font-family:var(--font-body);
  font-size:1rem;
  line-height:1.6;
  background:var(--primary-bg);
  color:var(--dark-text);
  padding-left:var(--nav-width);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg,video{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;border:none;background:none;cursor:pointer;color:inherit}
input,textarea{font-family:inherit}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);line-height:1.15;font-weight:700;color:inherit}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
:focus-visible{outline:3px solid var(--accent-orange);outline-offset:2px;border-radius:4px}

/* ---------- 3. 跳过链接 ---------- */
.skip-link{
  position:fixed;top:24px;left:50%;transform:translateX(-50%);
  z-index:1200;
  background:var(--accent-orange);color:#fff;
  padding:10px 22px;border-radius:999px;
  font-weight:600;font-size:14px;
  opacity:0;pointer-events:none;
  transition:opacity .2s;
}
.skip-link:focus{opacity:1;pointer-events:auto}

/* ---------- 4. 顶部极简条 ---------- */
.site-header{
  position:sticky;top:0;z-index:800;
  background:var(--primary-bg);
  border-bottom:1px solid var(--border-dark);
  min-height:var(--header-height);
}
.site-header__inner{
  max-width:var(--container-max);
  margin:0 auto;
  min-height:var(--header-height);
  padding:0 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--light-text)}
.brand__mark{
  display:flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:14px;
  background:linear-gradient(135deg,var(--accent-orange),var(--data-orange));
  font-family:var(--font-numeric);font-weight:700;font-size:20px;color:#fff;
  box-shadow:0 4px 16px rgba(255,106,0,.35);
}
.brand__name{font-family:var(--font-heading);font-size:20px;letter-spacing:.04em}
.brand--nav .brand__mark{width:38px;height:38px;font-size:18px;border-radius:12px}
.brand--nav .brand__name{font-size:18px}
.brand--footer .brand__mark{width:38px;height:38px;font-size:18px;border-radius:12px}
.brand--footer .brand__name{font-size:18px}
.site-header__actions{display:flex;align-items:center;gap:12px}
.header-match{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;
  background:var(--secondary-bg);border:1px solid var(--border-dark);
  color:var(--muted-text);font-size:13px;white-space:nowrap;
  transition:var(--transition);
}
.header-match:hover{border-color:var(--accent-orange);color:var(--light-text)}
.header-match__dot{width:7px;height:7px;border-radius:50%;background:var(--accent-green);box-shadow:0 0 0 3px rgba(0,200,83,.18)}
.header-match__text{line-height:1.2}
.search-trigger{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:999px;
  background:var(--secondary-bg);border:1px solid var(--border-dark);
  color:var(--muted-text);font-size:14px;
  transition:var(--transition);
}
.search-trigger:hover{border-color:var(--accent-orange);color:var(--light-text)}
.search-trigger__icon{position:relative;width:14px;height:14px;border:2px solid currentColor;border-radius:50%}
.search-trigger__icon::after{content:'';position:absolute;width:6px;height:2px;right:-5px;bottom:-3px;background:currentColor;border-radius:2px;transform:rotate(45deg)}
.header-download{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:40px;padding:0 18px;border-radius:999px;
  background:var(--accent-orange);color:#fff;
  font-size:14px;font-weight:600;white-space:nowrap;
  box-shadow:0 4px 16px rgba(255,106,0,.28);
  transition:var(--transition);
}
.header-download:hover{background:#ff7e26;transform:translateY(-1px)}
.nav-toggle{
  display:none;
  flex-direction:column;justify-content:center;align-items:center;gap:5px;
  width:44px;height:44px;border-radius:12px;
  background:var(--secondary-bg);border:1px solid var(--border-dark);
  transition:border-color .3s;
}
.nav-toggle:hover{border-color:var(--accent-orange)}
.nav-toggle__bar{width:20px;height:2px;background:var(--light-text);border-radius:2px;transition:transform .3s,opacity .3s}

/* ---------- 5. 搜索面板 ---------- */
.search-panel{position:absolute;top:100%;left:0;right:0;z-index:810;background:var(--primary-bg);border-bottom:1px solid var(--border-dark);box-shadow:0 16px 32px rgba(0,0,0,.28)}
.search-panel[hidden]{display:none}
.search-panel__inner{max-width:var(--container-max);margin:0 auto;padding:16px 24px;display:flex;align-items:center;gap:12px}
.search-panel__title{color:var(--muted-text);font-size:14px;white-space:nowrap}
.search-panel__input{flex:1;min-height:44px;background:var(--secondary-bg);border:1px solid var(--border-dark);border-radius:999px;color:var(--light-text);padding:0 18px;font-size:14px;transition:border-color .3s}
.search-panel__input::placeholder{color:var(--muted-text)}
.search-panel__input:focus{outline:none;border-color:var(--accent-orange)}
.search-panel__close{padding:9px 16px;border:1px solid var(--border-dark);border-radius:999px;color:var(--muted-text);font-size:14px;transition:var(--transition)}
.search-panel__close:hover{color:var(--light-text);border-color:var(--accent-orange)}

/* ---------- 6. 侧边轨道导航 ---------- */
.nav-overlay{position:fixed;inset:0;z-index:850;background:rgba(5,12,28,.7)}
.nav-overlay[hidden]{display:none}
.site-nav{
  position:fixed;top:0;left:0;bottom:0;z-index:900;
  width:var(--nav-width);
  padding:24px 20px;
  display:flex;flex-direction:column;
  background:
    radial-gradient(circle at 0 0, rgba(255,106,0,.14), transparent 42%),
    linear-gradient(180deg,var(--secondary-bg),var(--primary-bg) 70%);
  border-right:1px solid var(--border-dark);
  box-shadow:2px 0 24px rgba(0,0,0,.18);
}
.site-nav__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:30px}
.nav-close{position:relative;width:36px;height:36px;border-radius:12px;background:rgba(255,255,255,.08);display:none;align-items:center;justify-content:center;transition:background .3s}
.nav-close:hover{background:rgba(255,106,0,.18)}
.nav-close__bar{position:absolute;left:9px;right:9px;top:16px;height:2px;background:var(--light-text);border-radius:2px}
.nav-close__bar:first-child{transform:rotate(45deg)}
.nav-close__bar:last-child{transform:rotate(-45deg)}
.nav-list{display:flex;flex-direction:column;gap:4px;flex:1}
.nav-item{margin:0;padding:0}
.nav-link{
  position:relative;display:flex;align-items:center;gap:14px;
  padding:13px 16px;border-radius:var(--radius-md);
  color:var(--muted-text);font-size:15px;font-weight:500;
  border-left:3px solid transparent;
  transition:background .3s,color .3s,transform .3s,border-color .3s;
}
.nav-link:hover{background:rgba(255,255,255,.05);color:var(--light-text);transform:translateX(4px)}
.nav-link__num{font-family:var(--font-numeric);font-size:12px;color:var(--accent-orange)}
.nav-link[aria-current="page"]{
  background:linear-gradient(90deg,rgba(255,106,0,.18),rgba(255,106,0,.02));
  color:var(--light-text);border-left-color:var(--accent-orange);
}
.nav-link[aria-current="page"]::after{
  content:'';position:absolute;right:16px;top:50%;width:8px;height:8px;border-radius:50%;
  background:var(--accent-orange);transform:translateY(-50%);
  box-shadow:0 0 0 4px rgba(255,106,0,.16);
}
.site-nav__meta{margin-top:24px;padding-top:20px;border-top:1px solid var(--border-dark);display:flex;flex-direction:column;gap:12px}
.nav-stat{font-size:12px;line-height:1.5}
.nav-stat__label{display:block;font-family:var(--font-heading);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent-orange);margin-bottom:2px}
.nav-stat__value{color:var(--light-text);font-size:13px}

/* ---------- 7. 页脚 ---------- */
.site-footer{
  margin-top:56px;
  background:var(--primary-bg);
  color:var(--muted-text);
  border-top:1px solid var(--border-dark);
}
.site-footer__top{
  max-width:var(--container-max);
  margin:0 auto;
  padding:56px 24px 40px;
  display:grid;
  grid-template-columns:1.4fr 1fr 1.2fr 1fr;
  gap:40px;
}
.footer-col{display:flex;flex-direction:column}
.footer-col--brand,.footer-col--nav,.footer-col--contact,.footer-col--legal{position:relative}
.footer-title{font-family:var(--font-heading);font-size:14px;letter-spacing:.08em;text-transform:uppercase;color:var(--light-text);margin-bottom:14px}
.footer-list{display:flex;flex-direction:column;gap:9px}
.footer-link{color:var(--muted-text);font-size:14px;transition:color .3s,padding-left .3s}
.footer-link:hover{color:var(--accent-orange);padding-left:6px}
.footer-statement{font-size:14px;line-height:1.7;max-width:340px;margin-top:6px}
.footer-text{font-size:14px;line-height:1.7;color:#c3cede;margin-bottom:4px}
.footer-text--time{color:var(--muted-text)}
.footer-copy{margin-top:14px;font-size:13px;color:var(--muted-text)}
.footer-icp{font-size:13px;color:var(--muted-text)}
.site-footer__bottom{
  border-top:1px solid var(--border-dark);
  background:rgba(0,0,0,.18);
  padding:18px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
}
.footer-note{font-size:13px;color:var(--muted-text)}
.back-to-top{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:999px;
  background:var(--secondary-bg);border:1px solid var(--border-dark);
  color:var(--light-text);font-size:14px;
  transition:var(--transition);
}
.back-to-top::before{content:'↑';font-family:var(--font-numeric)}
.back-to-top:hover{border-color:var(--accent-orange);color:var(--accent-orange)}
.back-to-top[hidden]{display:none}

/* ---------- 8. 主内容与区块 ---------- */
#main-content{
  display:block;
  min-height:70vh;
  background:var(--light-bg);
  color:var(--dark-text);
  scroll-margin-top:calc(var(--header-height) + 16px);
}
.container-main{max-width:var(--container-max);margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.section--tight{padding:40px 0}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section__title{font-family:var(--font-heading);font-size:clamp(1.75rem,4vw,2.75rem);letter-spacing:.01em;margin-bottom:6px}
.section__lead{color:var(--muted-on-light);max-width:640px}

/* ---------- 9. 通用 UI 组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:10px 22px;border-radius:999px;
  font-weight:600;font-size:15px;text-decoration:none;
  border:1px solid transparent;
  transition:transform .3s,background .3s,border-color .3s,box-shadow .3s;
}
.btn:active{transform:scale(.98)}
.btn--primary{background:var(--accent-orange);color:#fff;box-shadow:0 8px 24px rgba(255,106,0,.24)}
.btn--primary:hover{background:#ff7e26;box-shadow:0 10px 28px rgba(255,106,0,.34);transform:translateY(-1px)}
.btn--outline{border-color:var(--primary-bg);color:var(--primary-bg);background:transparent}
.btn--outline:hover{background:var(--primary-bg);color:var(--light-text)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  border-radius:999px;padding:6px 14px;
  font-size:13px;font-weight:600;
  background:rgba(33,150,243,.12);color:var(--data-blue);
}
.badge--orange{background:rgba(255,106,0,.14);color:#d95d00}
.badge--green{background:rgba(0,200,83,.14);color:#00a844}
.card{
  background:#fff;border:1px solid var(--border-light);
  border-radius:var(--radius-lg);padding:28px;
  transition:transform var(--transition),box-shadow var(--transition);
}
.card:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(10,30,61,.08)}
.data-stat{display:flex;flex-direction:column;gap:4px}
.data-stat__label{font-size:13px;color:var(--muted-on-light);letter-spacing:.06em;text-transform:uppercase}
.data-stat__value{font-family:var(--font-numeric);font-size:2rem;font-weight:700;line-height:1.1;color:var(--data-blue)}
.data-stat__value--accent{color:var(--accent-orange)}
.data-stat__value--green{color:var(--accent-green)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted-on-light);padding:16px 0}
.breadcrumb a{color:var(--muted-on-light);transition:color .3s}
.breadcrumb a:hover{color:var(--accent-orange)}
.breadcrumb__sep{opacity:.5}

/* ---------- 10. 网格 ---------- */
.grid{display:grid;gap:var(--gap)}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}

/* ---------- 11. 图片容器 ---------- */
.figure{position:relative;overflow:hidden;border-radius:var(--radius-lg);background:linear-gradient(145deg,var(--secondary-bg),var(--primary-bg))}
.figure--16x9{aspect-ratio:16/9}
.figure--4x3{aspect-ratio:4/3}
.figure--wide{aspect-ratio:21/9}
.figure::after{content:'';position:absolute;inset:0;background:radial-gradient(circle at 70% 20%,rgba(255,106,0,.14),transparent 50%),linear-gradient(180deg,transparent 40%,rgba(0,0,0,.35));pointer-events:none}
.figure>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}

/* ---------- 12. 滚动进度条 ---------- */
.scroll-progress{
  position:fixed;top:0;left:0;height:3px;width:0%;
  z-index:1100;pointer-events:none;
  background:linear-gradient(90deg,var(--accent-orange),var(--accent-green));
}

/* ---------- 13. 响应式 ---------- */
@media (max-width:1100px){
  .site-footer__top{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:1023px){
  body{padding-left:0}
  .nav-toggle{display:flex}
  .site-nav{
    width:min(320px,88vw);
    transform:translateX(-105%);
    visibility:hidden;
    transition:transform .35s cubic-bezier(.4,0,.2,1),visibility 0s .35s;
  }
  .site-nav[data-open]{
    transform:translateX(0);
    visibility:visible;
    transition:transform .35s cubic-bezier(.4,0,.2,1),visibility 0s;
  }
  .nav-close{display:flex}
  body.nav-locked{overflow:hidden}
}
@media (max-width:767px){
  .site-header__inner{padding:0 16px}
  .header-match{display:none}
  .search-trigger{padding:9px 11px}
  .search-trigger__label{display:none}
  .search-panel__inner{padding:12px 16px}
  .search-panel__title{display:none}
  .section{padding:48px 0}
  .site-footer__top{grid-template-columns:1fr;padding:48px 16px 24px;gap:28px}
  .site-footer__bottom{padding:16px;justify-content:center}
}
@media (max-width:600px){
  .brand__mark{width:36px;height:36px;font-size:17px;border-radius:12px}
  .brand__name{font-size:17px}
  .header-download{font-size:0;color:transparent;min-height:38px;padding:0 14px}
  .header-download::after{content:'下载';font-size:13px;color:#fff}
  .grid--2,.grid--3{grid-template-columns:1fr}
}
@media (min-width:601px) and (max-width:1023px){
  .grid--3{grid-template-columns:1fr 1fr}
}
@media (max-width:400px){
  .header-download{display:none}
}

/* ---------- 14. 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
}