/* 球友会品牌 · 共享站点样式 /assets/site.css */

/* ---------- 1. 变量 ---------- */
:root{
  --ink:#0E1B2A;
  --pitch:#0B6E4F;
  --lime:#C6FF4A;
  --cream:#F4F1E8;
  --white:#FFFFFF;
  --deep:#1F3B33;
  --gray:#6F7C86;
  --green-soft:#7FD1AE;
  --orange:#FF7A3D;

  --wrap:1180px;
  --gutter:clamp(18px,4vw,40px);
  --shadow-hard:6px 6px 0 var(--ink);
  --shadow-soft:4px 4px 0 rgba(14,27,42,.18);
  --edge:2px solid var(--ink);

  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{
  -webkit-text-size-adjust:100%;
  scroll-padding-top:140px;
  scroll-behavior:smooth;
}
body{margin:0;}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img,svg,video{max-width:100%;display:block;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;padding:0;}
a{color:var(--pitch);text-decoration-thickness:1px;text-underline-offset:3px;}
table{border-collapse:collapse;width:100%;}
[hidden]{display:none !important;}
::selection{background:var(--lime);color:var(--ink);}

/* ---------- 3. 基础排版 ---------- */
body{
  background:var(--cream);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.9;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-weight:900;
  line-height:1.15;
  letter-spacing:-.02em;
  color:var(--ink);
}
h1{font-size:clamp(40px,7vw,88px);}
h2{font-size:clamp(28px,4vw,44px);}
h3{font-size:clamp(21px,2.6vw,28px);}
h4{font-size:19px;}
p{overflow-wrap:break-word;}
.mono{
  font-family:var(--font-mono);
  font-weight:500;
  letter-spacing:.06em;
  font-variant-numeric:tabular-nums;
}
.lead{
  font-size:clamp(18px,2.1vw,21px);
  line-height:1.8;
  color:var(--deep);
  max-width:34em;
}
.note{
  font-size:14px;
  line-height:1.75;
  color:var(--gray);
}
.divider{
  height:3px;
  border:0;
  background:var(--ink);
  margin:clamp(28px,4vw,52px) 0;
}
.eyebrow{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:500;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--pitch);
  margin:0 0 12px;
}
.tag{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--ink);
  background:var(--white);
  border:2px solid var(--ink);
  padding:3px 8px;
  white-space:nowrap;
}
.tag--lime{background:var(--lime);}

/* ---------- 4. 焦点可见 ---------- */
:where(a,button,input,select,textarea,summary,[tabindex]):focus-visible{
  outline:3px solid var(--pitch);
  outline-offset:3px;
  border-radius:1px;
}
.site-header :where(a,button):focus-visible,
.site-footer :where(a,button):focus-visible{
  outline-color:var(--lime);
}

/* ---------- 5. 布局容器 ---------- */
.wrap{
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:0 var(--gutter);
}
.section{padding:clamp(48px,7vw,96px) 0;}
.section--white{background:var(--white);}
.section--pitch{background:var(--pitch);color:var(--white);}
.section--pitch h1,.section--pitch h2,.section--pitch h3{color:var(--white);}
.section--pitch .eyebrow,.section--pitch .lead,.section--pitch .note{color:rgba(255,255,255,.86);}
.section--ink{background:var(--ink);color:var(--cream);}
.section--ink h1,.section--ink h2,.section--ink h3{color:var(--cream);}
.section--ink .eyebrow{color:var(--lime);}
.section--ink .lead,.section--ink .note{color:rgba(244,241,232,.8);}
.section__head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:18px 32px;
  margin-bottom:clamp(24px,3.4vw,44px);
  border-bottom:3px solid currentColor;
  padding-bottom:16px;
}

/* ---------- 6. 网格与卡片 ---------- */
.grid{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));}
.grid--4{grid-template-columns:repeat(4,minmax(0,1fr));}

.card{
  display:flex;
  flex-direction:column;
  gap:10px;
  background:var(--white);
  border:var(--edge);
  box-shadow:var(--shadow-hard);
  padding:clamp(18px,2.4vw,26px);
}
.card__label{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--pitch);
}
.card__title{
  margin:0;
  font-size:clamp(19px,2.3vw,25px);
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1.3;
}
.card__text{
  margin:0;
  font-size:15.5px;
  line-height:1.8;
  color:var(--deep);
}
.card__foot{
  margin-top:auto;
  padding-top:12px;
  border-top:1px dashed rgba(14,27,42,.24);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--gray);
}

/* ---------- 7. 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:15px;
  font-weight:800;
  letter-spacing:.02em;
  line-height:1.2;
  padding:14px 22px;
  border:var(--edge);
  background:var(--white);
  color:var(--ink);
  text-decoration:none;
  box-shadow:var(--shadow-hard);
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.btn:hover{transform:translate(-2px,-2px);box-shadow:8px 8px 0 var(--ink);}
.btn--lime{background:var(--lime);}
.btn--pitch{background:var(--pitch);color:var(--white);}
.btn--pitch:hover{box-shadow:8px 8px 0 var(--ink);}
.btn--ghost{background:transparent;box-shadow:none;border-color:var(--ink);}
.btn--ghost:hover{background:var(--lime);transform:none;box-shadow:none;}
.btn--on-dark{background:transparent;color:var(--cream);border-color:var(--cream);box-shadow:6px 6px 0 rgba(198,255,74,.5);}
.btn--on-dark:hover{color:var(--ink);background:var(--lime);border-color:var(--ink);box-shadow:6px 6px 0 var(--ink);}

/* ---------- 8. 媒体占位容器 ---------- */
.media-frame{
  position:relative;
  display:block;
  width:100%;
  aspect-ratio:16/10;
  background:var(--white);
  border:var(--edge);
  box-shadow:var(--shadow-hard);
  overflow:hidden;
}
.media-frame--wide{aspect-ratio:21/9;}
.media-frame--tall{aspect-ratio:4/5;}
.media-frame--square{aspect-ratio:1/1;}
.media-frame > img,
.media-frame > svg,
.media-frame > .media-frame__fill{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}
.media-frame__caption{
  display:block;
  margin-top:12px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--gray);
}

/* ---------- 9. 面包屑与正文 ---------- */
.breadcrumb{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--gray);
}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:8px;}
.breadcrumb li{display:flex;gap:8px;align-items:center;}
.breadcrumb li + li::before{content:"/";color:var(--gray);}
.breadcrumb a{color:var(--pitch);text-decoration:none;}
.breadcrumb a:hover{text-decoration:underline;}
.breadcrumb [aria-current="page"]{color:var(--ink);}

.prose{max-width:44em;font-size:17px;line-height:1.9;color:var(--deep);}
.prose > * + *{margin-top:1.1em;}
.prose h2{font-size:clamp(24px,3vw,32px);margin-top:2em;color:var(--ink);}
.prose h3{margin-top:1.6em;color:var(--ink);}
.prose ul,.prose ol{padding-left:1.4em;}
.prose ul li{list-style:square;}
.prose ol li{list-style:decimal;}
.prose li + li{margin-top:.4em;}
.prose strong{color:var(--ink);font-weight:800;}
.prose code{
  font-family:var(--font-mono);
  font-size:.9em;
  background:rgba(11,110,79,.12);
  padding:2px 6px;
}

/* ---------- 10. 筛选组件 ---------- */
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-bottom:20px;
}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:500;
  letter-spacing:.1em;
  color:var(--ink);
  background:var(--white);
  border:2px solid var(--ink);
  padding:9px 14px;
  cursor:pointer;
  transition:background-color .16s ease,color .16s ease,box-shadow .16s ease;
}
.chip:hover{box-shadow:3px 3px 0 var(--ink);}
.chip[aria-pressed="true"]{background:var(--pitch);color:var(--white);box-shadow:3px 3px 0 var(--ink);}
.filter-status{
  margin-left:auto;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--gray);
}

/* ---------- 11. 页头 ---------- */
.skip-link{
  position:absolute;
  top:-120px;
  left:50%;
  transform:translateX(-50%);
  z-index:300;
  display:inline-block;
  padding:12px 22px;
  background:var(--lime);
  color:var(--ink);
  font-weight:800;
  text-decoration:none;
  border:2px solid var(--ink);
  transition:top .18s ease;
}
.skip-link:focus{top:12px;}

.site-header{
  position:sticky;
  top:0;
  z-index:120;
  color:var(--cream);
  background-color:var(--ink);
  background-image:repeating-linear-gradient(115deg,rgba(11,110,79,.28) 0 2px,transparent 2px 24px);
}
.scroll-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:3px;
  background:rgba(244,241,232,.18);
  overflow:hidden;
}
.scroll-progress__bar{
  display:block;
  height:100%;
  width:100%;
  background:var(--lime);
  transform:scaleX(0);
  transform-origin:left center;
}

.masthead{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  grid-template-areas:"side brand cta";
  align-items:center;
  gap:14px 20px;
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:22px var(--gutter) 18px;
}
.masthead__brand{grid-area:brand;text-align:center;}
.brand{
  display:inline-flex;
  align-items:baseline;
  gap:10px;
  font-size:clamp(28px,5.6vw,46px);
  font-weight:900;
  letter-spacing:-.03em;
  line-height:1;
  color:var(--cream);
  text-decoration:none;
}
.brand__suffix{
  font-family:var(--font-mono);
  font-size:.34em;
  font-weight:500;
  letter-spacing:.2em;
  color:var(--lime);
  border:2px solid var(--lime);
  padding:3px 6px;
}
.brand__sub{
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.22em;
  color:rgba(244,241,232,.62);
}
.pin-cta{
  grid-area:cta;
  justify-self:end;
  display:inline-block;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:700;
  letter-spacing:.12em;
  color:var(--ink);
  background:var(--lime);
  border:2px solid var(--ink);
  box-shadow:4px 4px 0 var(--pitch);
  padding:11px 18px;
  text-decoration:none;
  white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease;
}
.pin-cta:hover{transform:translate(-2px,-2px);box-shadow:6px 6px 0 var(--pitch);}

.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  padding:10px 14px;
  color:var(--cream);
  border:2px solid rgba(244,241,232,.35);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  cursor:pointer;
}
.nav-toggle__box{display:inline-flex;flex-direction:column;gap:4px;width:20px;}
.nav-toggle__box span{display:block;height:2px;background:var(--lime);transition:transform .2s ease,opacity .2s ease;}
.site-header[data-open] .nav-toggle__box span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.site-header[data-open] .nav-toggle__box span:nth-child(2){opacity:0;}
.site-header[data-open] .nav-toggle__box span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.site-nav{border-top:1px solid rgba(244,241,232,.16);}
.site-nav__list{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:2px;
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:0 var(--gutter);
}
.site-nav__link{
  position:relative;
  display:block;
  padding:13px 18px 16px;
  font-size:14.5px;
  font-weight:500;
  letter-spacing:.04em;
  color:rgba(244,241,232,.78);
  text-decoration:none;
  transition:color .2s ease;
}
.site-nav__link::after{
  content:"";
  position:absolute;
  left:18px;
  right:18px;
  bottom:7px;
  height:3px;
  background:var(--lime);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .28s cubic-bezier(.2,.8,.2,1);
}
.site-nav__link:hover{color:var(--cream);}
.site-nav__link:hover::after,
.site-nav__link:focus-visible::after{transform:scaleX(1);}
.site-nav__link[aria-current="page"]{color:var(--white);font-weight:800;}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1);}

/* ---------- 12. 页脚 ---------- */
.site-footer{
  position:relative;
  color:rgba(244,241,232,.82);
  background-color:var(--ink);
  background-image:repeating-linear-gradient(135deg,rgba(11,110,79,.34) 0 2px,transparent 2px 18px);
  border-top:3px solid var(--lime);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1.5fr 1fr;
  gap:clamp(28px,4vw,52px);
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:clamp(40px,6vw,72px) var(--gutter) 36px;
}
.footer-block{min-width:0;}
.footer-brand{
  display:inline-flex;
  align-items:baseline;
  gap:8px;
  font-size:26px;
  font-weight:900;
  letter-spacing:-.02em;
  color:var(--cream);
  text-decoration:none;
}
.footer-brand span{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.2em;
  color:var(--lime);
  border:2px solid var(--lime);
  padding:3px 6px;
}
.footer-line{
  margin-top:14px;
  max-width:26em;
  font-size:15px;
  line-height:1.8;
  color:rgba(244,241,232,.72);
}
.footer-meta{
  margin-top:16px;
  font-size:12px;
  letter-spacing:.1em;
  color:rgba(244,241,232,.48);
}
.footer-title{
  margin:0 0 16px;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.2em;
  color:var(--lime);
}
.footer-list{display:grid;gap:10px;}
.footer-list a{
  font-size:15px;
  color:rgba(244,241,232,.84);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.footer-list a:hover{color:var(--lime);border-bottom-color:var(--lime);}
.footer-list--contact li{font-size:14.5px;}
.footer-contact{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 10px;}
.footer-contact__key{
  flex:0 0 auto;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--green-soft);
}
.footer-contact__val{
  flex:1 1 12em;
  min-width:0;
  font-size:14.5px;
  line-height:1.75;
  color:rgba(244,241,232,.78);
  overflow-wrap:break-word;
}
.copy-btn{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  padding:6px 10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--lime);
  background:transparent;
  border:2px solid rgba(198,255,74,.5);
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease;
}
.copy-btn:hover{background:var(--lime);color:var(--ink);border-color:var(--lime);}
.copy-status{
  margin-top:14px;
  min-height:1.4em;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--green-soft);
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 24px;
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:20px var(--gutter) 30px;
  border-top:1px solid rgba(244,241,232,.16);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:rgba(244,241,232,.55);
}
.footer-copy,.footer-icp{margin:0;}
.to-top{
  padding:8px 14px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.12em;
  color:var(--cream);
  background:transparent;
  border:2px solid rgba(244,241,232,.3);
  cursor:pointer;
  transition:color .18s ease,border-color .18s ease;
}
.to-top:hover{color:var(--lime);border-color:var(--lime);}

/* ---------- 13. 显现动效 ---------- */
html.has-js [data-reveal]{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .5s ease,transform .5s cubic-bezier(.2,.8,.2,1);
}
html.has-js [data-reveal].is-visible{
  opacity:1;
  transform:none;
}

/* ---------- 14. 响应式 ---------- */
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;}
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:880px){
  html{scroll-padding-top:170px;}
  .masthead{
    grid-template-columns:1fr auto;
    grid-template-areas:
      "brand toggle"
      "cta cta";
    align-items:start;
    padding:18px var(--gutter) 16px;
  }
  .masthead__brand{text-align:left;}
  .brand__sub{margin-top:8px;font-size:11px;letter-spacing:.16em;}
  .nav-toggle{display:inline-flex;grid-area:toggle;}
  .pin-cta{grid-area:cta;justify-self:stretch;text-align:center;box-shadow:4px 4px 0 var(--pitch);}

  .site-nav{display:none;}
  .site-header[data-open] .site-nav{display:block;border-top:1px dashed rgba(244,241,232,.22);}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0;padding:6px var(--gutter) 18px;}
  .site-nav__item{border-bottom:1px solid rgba(244,241,232,.12);}
  .site-nav__item:last-child{border-bottom:0;}
  .site-nav__link{padding:16px 2px 16px;font-size:16.5px;}
  .site-nav__link::after{left:2px;right:auto;width:26px;bottom:12px;}

  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .section__head{align-items:flex-start;}
  .filter-status{margin-left:0;width:100%;}
}
@media (max-width:600px){
  body{font-size:16px;}
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .media-frame--wide{aspect-ratio:16/10;}
}

/* ---------- 15. 降低动态效果 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  html.has-js [data-reveal]{opacity:1;transform:none;}
  .site-nav__link::after{transition:none;}
  .scroll-progress__bar{transition:none;}
}