/* =========================================================
   B体育官网 · 共享站点样式 /assets/site.css
   深墨绿场地底 · 荧光青信号 · 比分橙红强调 · 粗边框硬投影
   ========================================================= */

/* ---------- 1. 变量 ---------- */
:root{
  --ink-900:#071C17;
  --ink-800:#0B2620;
  --graphite:#161C1B;
  --turf:#0E3B31;
  --cyan:#22F5C8;
  --mint:#8FFFE6;
  --orange:#FF5A36;
  --amber:#F2B544;
  --text:#E8F5F1;
  --muted:#A8C3BC;
  --line:#3A4A46;

  --wrap:1240px;
  --gutter:clamp(16px,4vw,40px);

  --font-display:"Barlow Condensed","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"DIN Condensed","JetBrains Mono","Roboto Mono",ui-monospace,monospace;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;

  --shadow-hard:6px 6px 0 rgba(0,0,0,.55);
  --shadow-lift:8px 8px 0 rgba(0,0,0,.62);
}

/* ---------- 2. 重置 ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; text-size-adjust:100%; }
@media (prefers-reduced-motion:no-preference){
  html{ scroll-behavior:smooth; }
}
body{
  margin:0;
  min-height:100vh;
  color:var(--text);
  font-family:var(--font-body);
  font-size:clamp(14px,1.05vw,16px);
  line-height:1.7;
  background-color:var(--ink-900);
  background-image:
    radial-gradient(120% 78% at 88% -12%, rgba(34,245,200,.10), transparent 62%),
    radial-gradient(80% 60% at 0% 100%, rgba(255,90,54,.07), transparent 60%),
    repeating-linear-gradient(90deg, rgba(58,74,70,.26) 0 1px, transparent 1px 120px),
    repeating-linear-gradient(0deg, rgba(58,74,70,.14) 0 1px, transparent 1px 120px);
  background-attachment:fixed;
}
h1,h2,h3,h4,p,ul,ol,figure{ margin:0; }
ul,ol{ padding:0; list-style:none; }
img,svg{ display:block; max-width:100%; }
button,input,select,textarea{ font:inherit; color:inherit; }
a{ color:var(--mint); text-underline-offset:3px; text-decoration-thickness:2px; }
::selection{ background:var(--cyan); color:var(--ink-900); }
:focus-visible{ outline:3px solid var(--cyan); outline-offset:3px; }

/* ---------- 3. 排版 ---------- */
h1,.h1{ font-family:var(--font-display); font-weight:900; font-size:clamp(2.4rem,6vw,4.6rem); line-height:.94; letter-spacing:.005em; }
h2,.h2{ font-family:var(--font-display); font-weight:900; font-size:clamp(1.6rem,3.4vw,2.6rem); line-height:1.04; letter-spacing:.01em; }
h3,.h3{ font-family:var(--font-display); font-weight:800; font-size:clamp(1.1rem,1.8vw,1.4rem); line-height:1.2; letter-spacing:.02em; }
h4,.h4{ font-family:var(--font-display); font-weight:800; font-size:1rem; letter-spacing:.04em; }
.lead{ font-size:clamp(1rem,1.4vw,1.15rem); line-height:1.75; color:var(--text); }
.eyebrow{
  display:inline-block; font-family:var(--font-num); font-size:11px;
  letter-spacing:.16em; text-transform:uppercase; color:var(--cyan);
}
.annot{
  font-size:11px; letter-spacing:.2em; color:var(--muted);
  writing-mode:vertical-rl; text-orientation:mixed; line-height:1.4;
}
.num{ font-family:var(--font-num); font-variant-numeric:tabular-nums; letter-spacing:.02em; }
.score{
  display:inline-block; font-family:var(--font-num); font-weight:800;
  font-size:clamp(3rem,8vw,7rem); line-height:.82; letter-spacing:-.02em;
  color:var(--orange);
}

/* ---------- 4. 布局 ---------- */
.wrap{ width:min(100% - var(--gutter) * 2, var(--wrap)); margin-inline:auto; }
#main-content{ display:block; scroll-margin-top:142px; }
.section{ padding-block:clamp(40px,6vw,84px); }
.section--tight{ padding-block:clamp(24px,3.5vw,48px); }
.section-head{
  display:flex; flex-wrap:wrap; align-items:flex-end; justify-content:space-between;
  gap:14px 24px; margin-bottom:clamp(20px,3vw,36px);
}
.section-head__title{ margin:0; }
.grid-2,.grid-3{ display:grid; gap:clamp(16px,2.4vw,28px); }
.grid-2{ grid-template-columns:repeat(2,minmax(0,1fr)); }
.grid-3{ grid-template-columns:repeat(3,minmax(0,1fr)); }
.divider{ height:2px; border:0; background:var(--line); margin-block:clamp(20px,3vw,36px); }
@media (max-width:860px){
  .grid-3{ grid-template-columns:repeat(2,minmax(0,1fr)); }
}
@media (max-width:620px){
  .grid-2,.grid-3{ grid-template-columns:1fr; }
}

/* ---------- 5. 通用组件 ---------- */
.card{
  background:var(--ink-800);
  border:2px solid var(--line);
  box-shadow:var(--shadow-hard);
  padding:clamp(16px,2.4vw,28px);
}
.panel{
  background:var(--turf);
  border:2px solid var(--line);
  padding:clamp(16px,2.4vw,28px);
}
.tag{
  display:inline-flex; align-items:center; gap:6px;
  padding:3px 9px; border:1px solid var(--line);
  font-size:11px; letter-spacing:.1em; line-height:1.6; color:var(--muted);
}
.tag--cyan{ border-color:var(--cyan); color:var(--cyan); }
.tag--amber{ border-color:var(--amber); color:var(--amber); }
.tag--orange{ border-color:var(--orange); color:var(--orange); }

.breadcrumbs{
  font-size:12px; letter-spacing:.06em; color:var(--muted);
  padding-block:16px 0;
}
.breadcrumbs ol{ display:flex; flex-wrap:wrap; gap:8px; align-items:center; }
.breadcrumbs li+li::before{ content:"/"; margin-right:8px; color:var(--line); }
.breadcrumbs a{ color:var(--muted); text-decoration:none; }
.breadcrumbs a:hover{ color:var(--cyan); }
.breadcrumbs [aria-current="page"]{ color:var(--text); }

/* 图片容器：页面阶段放 img / picture / .media-frame__slot */
.media-frame{
  position:relative;
  display:block;
  overflow:hidden;
  background:var(--ink-800);
  border:2px solid var(--line);
  box-shadow:var(--shadow-hard);
  aspect-ratio:16 / 10;
}
.media-frame > img,
.media-frame > svg,
.media-frame > picture,
.media-frame > picture > img{
  display:block; width:100%; height:100%; object-fit:cover;
}
.media-frame::after{
  content:""; position:absolute; inset:0; pointer-events:none;
  background:
    linear-gradient(180deg, rgba(7,28,23,0) 42%, rgba(7,28,23,.86) 100%),
    linear-gradient(90deg, rgba(34,245,200,.16), transparent 46%);
}
.media-frame--wide{ aspect-ratio:21 / 9; }
.media-frame--tall{ aspect-ratio:4 / 5; }
.media-frame--square{ aspect-ratio:1 / 1; }
.media-frame__slot{
  position:absolute; inset:0; display:grid; place-items:center;
  background-image:repeating-linear-gradient(135deg, rgba(58,74,70,.35) 0 12px, transparent 12px 24px);
  color:var(--muted); font-size:11px; letter-spacing:.18em;
}
.media-frame__caption{
  position:absolute; left:0; right:0; bottom:0; z-index:2;
  padding:10px 14px; font-size:11px; letter-spacing:.1em; color:var(--mint);
}

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

/* ---------- 6. 按钮 ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:12px 20px;
  font-family:var(--font-display); font-weight:800; font-size:.95rem;
  letter-spacing:.08em; line-height:1; text-decoration:none; cursor:pointer;
  border:2px solid var(--line); background:transparent; color:var(--text);
  transition:transform .16s ease, box-shadow .16s ease, background-color .16s ease,
             border-color .16s ease, color .16s ease;
}
.btn--primary{ background:var(--cyan); border-color:var(--cyan); color:var(--ink-900); box-shadow:4px 4px 0 rgba(0,0,0,.55); }
.btn--accent{ background:var(--orange); border-color:var(--orange); color:var(--ink-900); box-shadow:4px 4px 0 rgba(0,0,0,.55); }
.btn--ghost{ border-color:var(--line); color:var(--text); }
.btn--sm{ padding:9px 14px; font-size:.82rem; letter-spacing:.06em; }
.btn--primary:hover,.btn--accent:hover{ transform:translate(-2px,-2px); box-shadow:7px 7px 0 rgba(0,0,0,.6); }
.btn--ghost:hover{ border-color:var(--cyan); color:var(--cyan); }

/* ---------- 7. 跳转链接 ---------- */
.skip-link{
  position:absolute; left:12px; top:-72px; z-index:200;
  padding:10px 18px;
  background:var(--cyan); color:var(--ink-900);
  font-family:var(--font-display); font-weight:800; letter-spacing:.08em;
  text-decoration:none; border:2px solid var(--ink-900);
  transition:top .18s ease;
}
.skip-link:focus{ top:12px; }

/* ---------- 8. 头部 ---------- */
.site-header{
  position:sticky; top:0; z-index:60;
  background:var(--ink-900);
  border-bottom:2px solid var(--line);
}
.header-top{
  background:linear-gradient(90deg, rgba(14,59,49,.94), rgba(7,28,23,.98) 58%);
  border-bottom:1px solid rgba(58,74,70,.75);
}
.header-top__inner{
  display:flex; align-items:center; gap:clamp(12px,2.2vw,28px);
  padding-block:12px;
}
.brand{
  display:inline-flex; align-items:center; gap:10px;
  font-family:var(--font-display); font-weight:900;
  font-size:1.35rem; letter-spacing:.06em; line-height:1;
  color:var(--text); text-decoration:none;
}
.brand__mark{
  display:grid; place-items:center; flex:0 0 auto;
  width:34px; height:34px;
  background:var(--cyan); color:var(--ink-900);
  font-family:var(--font-num); font-size:1.15rem; font-weight:800; line-height:1;
  clip-path:polygon(0 0,100% 0,100% 68%,68% 100%,0 100%);
}
.brand__name{ white-space:nowrap; }
.header-top__tagline{
  display:flex; align-items:center; gap:10px;
  font-size:12px; letter-spacing:.1em; color:var(--muted); white-space:nowrap;
}
.header-top__tick{
  display:inline-block; width:26px; height:2px; background:var(--cyan); flex:0 0 auto;
}
.header-top__meta{
  margin-left:auto; display:flex; align-items:center; gap:clamp(8px,1.4vw,16px);
}
.header-top__hours{
  font-family:var(--font-num); font-size:11px; letter-spacing:.08em; color:var(--muted);
  padding-right:14px; border-right:1px solid var(--line); white-space:nowrap;
}

/* 移动导航按钮 */
.nav-toggle{
  display:none; align-items:center; gap:8px;
  padding:9px 12px; cursor:pointer;
  background:var(--graphite); color:var(--text);
  border:2px solid var(--line);
  font-family:var(--font-display); font-weight:800;
  font-size:.82rem; letter-spacing:.1em; line-height:1;
  transition:border-color .16s ease, color .16s ease;
}
.nav-toggle:hover{ border-color:var(--cyan); color:var(--cyan); }
.nav-toggle__bars{
  display:block; position:relative; width:18px; height:2px;
  background:currentColor; flex:0 0 auto;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:""; position:absolute; left:0; width:18px; height:2px; background:currentColor;
  transition:transform .18s ease, top .18s ease;
}
.nav-toggle__bars::before{ top:-6px; }
.nav-toggle__bars::after{ top:6px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars{ background:var(--cyan); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{ top:0; transform:rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{ top:0; transform:rotate(-45deg); }
.nav-toggle__text{ white-space:nowrap; }

/* 下层栏目带 */
.site-nav{
  position:relative;
  background:var(--ink-800);
  border-top:1px solid rgba(58,74,70,.7);
  border-bottom:2px solid var(--line);
}
.nav-strip{
  display:flex; align-items:stretch; gap:2px;
  overflow-x:auto; scroll-snap-type:x proximity;
  scrollbar-width:thin; scrollbar-color:var(--line) transparent;
}
.nav-strip::-webkit-scrollbar{ height:4px; }
.nav-strip::-webkit-scrollbar-thumb{ background:var(--line); }
.nav-strip__item{ flex:0 0 auto; scroll-snap-align:start; }
.nav-strip a{
  display:block; padding:14px 18px; white-space:nowrap;
  font-family:var(--font-display); font-weight:800; font-size:1rem; letter-spacing:.06em;
  color:var(--muted); text-decoration:none;
  border-bottom:3px solid transparent;
  transition:color .16s ease, background-color .16s ease, border-color .16s ease;
}
.nav-strip a:hover{
  color:var(--text); background:rgba(34,245,200,.08); border-bottom-color:var(--mint);
}
.nav-strip a[aria-current="page"]{
  color:var(--ink-900); background:var(--cyan); border-bottom-color:var(--mint);
}

/* 阅读进度 */
.read-progress{
  position:absolute; left:0; right:0; bottom:0; height:3px;
  background:rgba(58,74,70,.55); pointer-events:none;
}
.read-progress__bar{
  display:block; width:0; height:100%;
  background:linear-gradient(90deg,var(--cyan),var(--mint));
  transition:width .12s linear;
}

/* ---------- 9. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(48px,7vw,96px);
  background:var(--graphite);
  border-top:2px solid var(--line);
  color:var(--text);
}
.site-footer::before{
  content:""; position:absolute; inset:0 0 auto 0; height:4px;
  background:repeating-linear-gradient(90deg, var(--cyan) 0 28px, transparent 28px 56px);
}
.footer-grid{
  display:grid; gap:clamp(24px,4vw,56px);
  grid-template-columns:minmax(0,1.4fr) minmax(0,1fr) minmax(0,1.2fr);
  padding-block:clamp(36px,5vw,68px);
}
.footer-brand__line{
  margin-top:18px;
  font-family:var(--font-display); font-weight:800;
  font-size:clamp(1.1rem,1.7vw,1.3rem); line-height:1.3; letter-spacing:.02em;
  color:var(--text);
}
.footer-brand__note{
  margin-top:10px; max-width:36ch;
  font-size:.88rem; line-height:1.75; color:var(--muted);
}
.footer-brand__copy{
  margin-top:18px; display:flex; flex-wrap:wrap; align-items:center; gap:8px;
  font-family:var(--font-num); font-size:13px; letter-spacing:.04em; color:var(--mint);
}
.footer-brand__label{
  display:inline-block; padding:2px 8px;
  font-family:var(--font-body); font-size:10px; letter-spacing:.14em;
  color:var(--ink-900); background:var(--cyan);
}
.copy-btn{
  padding:4px 10px; cursor:pointer;
  background:transparent; color:var(--cyan);
  border:1px solid var(--cyan);
  font-family:var(--font-display); font-weight:800; font-size:.72rem; letter-spacing:.1em; line-height:1.4;
  transition:background-color .16s ease, color .16s ease, border-color .16s ease;
}
.copy-btn:hover{ background:var(--cyan); color:var(--ink-900); }
.copy-btn[data-copied]{ background:var(--mint); border-color:var(--mint); color:var(--ink-900); }

.footer-col__title{
  font-family:var(--font-display); font-weight:800;
  font-size:12px; letter-spacing:.16em; color:var(--cyan);
  padding-bottom:10px; margin-bottom:14px;
  border-bottom:1px solid var(--line);
}
.footer-list{ display:grid; gap:10px; }
.footer-list a{
  color:var(--muted); font-size:.92rem; text-decoration:none;
  transition:color .16s ease;
}
.footer-list a:hover{ color:var(--cyan); text-decoration:underline; }
.footer-list--plain{ gap:14px; font-size:.86rem; line-height:1.65; color:var(--muted); }
.footer-list__k{
  display:block; font-size:10px; letter-spacing:.16em; color:var(--mint);
}
.footer-list--legal{
  gap:8px; margin-top:20px; padding-top:16px;
  border-top:1px solid var(--line);
}
.footer-list--legal a{ font-size:.86rem; }

.footer-base{
  background:var(--ink-900);
  border-top:1px solid var(--line);
}
.footer-base__inner{
  display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between;
  gap:8px 24px; padding-block:16px;
  font-size:12px; letter-spacing:.04em; color:var(--muted);
}
.footer-base__icp{ font-family:var(--font-num); letter-spacing:.06em; color:var(--mint); }
.footer-base__note{ color:var(--muted); }

/* ---------- 10. 响应式 ---------- */
@media (max-width:980px){
  .header-top__tagline{ display:none; }
}
@media (max-width:900px){
  .nav-toggle{ display:inline-flex; }
  .site-nav{ display:none; }
  .site-nav[data-open]{ display:block; }
  .nav-strip{ flex-direction:column; gap:0; padding:6px 0 14px; overflow-x:visible; }
  .nav-strip a{ padding:14px 12px; border-bottom:1px solid var(--line); }
  .nav-strip a[aria-current="page"]{ border-bottom-color:var(--cyan); }
  .footer-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); }
  .footer-brand{ grid-column:1 / -1; }
}
@media (max-width:620px){
  .header-top__hours{ display:none; }
  .brand{ font-size:1.15rem; }
  .brand__mark{ width:30px; height:30px; font-size:1rem; }
  .footer-grid{ grid-template-columns:1fr; }
  .footer-base__inner{ justify-content:flex-start; }
  #main-content{ scroll-margin-top:118px; }
}

/* ---------- 11. 动效降级 ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::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; transition:none; }
  .read-progress__bar{ transition:none; }
}