/* =========================================================
   开元体育 · 共享站点样式 /assets/site.css
   版本 v3.2 · 深场绿蓝图 × 战术板秩序
   ========================================================= */

/* ---------- 1. 设计变量 ---------- */
:root{
  --field:#06281F;
  --turf:#0B3B2C;
  --grid:#1D5A45;
  --cyan:#35F2D0;
  --orange:#FF6A2A;
  --amber:#FFC24B;
  --chalk:#F4F7F3;
  --mist:#A8BDB4;
  --carbon:#03110D;
  --paper:#E9F0E8;

  --radius-pill:999px;
  --radius-panel:18px;
  --radius-media:14px;

  --shadow-hard:6px 6px 0 rgba(3,17,13,.55);
  --shadow-soft:4px 4px 0 rgba(3,17,13,.5);

  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:180ms;

  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:"IBM Plex Mono","SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
  --font-narrow:"Barlow Condensed","Roboto Condensed","Noto Sans SC","PingFang SC",system-ui,sans-serif;

  --wrap-max:1440px;
  --gutter:clamp(16px,3vw,40px);
  --nav-break:1024px;
}

/* ---------- 2. 重置 ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:120px;
}
body{
  margin:0;
  min-height:100vh;
  background:var(--field);
  color:var(--chalk);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  opacity:.3;
  background-image:
    linear-gradient(to right,rgba(29,90,69,.75) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(29,90,69,.75) 1px,transparent 1px);
  background-size:88px 88px;
}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,ul,ol{margin:0;}
img,svg,video{max-width:100%;}
button{font:inherit;color:inherit;}
a{
  color:var(--cyan);
  text-decoration:none;
  transition:color var(--dur) var(--ease);
}
a:hover{color:var(--amber);}
:focus-visible{
  outline:3px solid var(--amber);
  outline-offset:3px;
  border-radius:4px;
}

/* ---------- 3. 辅助类 ---------- */
.ky-sr-only{
  position:absolute;
  width:1px;height:1px;
  padding:0;margin:-1px;
  overflow:hidden;
  clip:rect(0 0 0 0);
  clip-path:inset(50%);
  white-space:nowrap;
  border:0;
}
.ky-mono{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
}

/* ---------- 4. 布局骨架 ---------- */
main,.ky-header,.ky-footer,.ky-skip{position:relative;z-index:1;}

.ky-wrap{
  width:100%;
  max-width:var(--wrap-max);
  margin:0 auto;
  padding:0 var(--gutter);
}
.ky-section{padding:clamp(44px,6vw,88px) 0;}
.ky-section__head{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:20px;
  align-items:end;
  padding-bottom:16px;
  margin-bottom:clamp(20px,3vw,34px);
  border-bottom:2px solid var(--grid);
}

.ky-kicker{
  display:block;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.3em;
  text-transform:uppercase;
  color:var(--cyan);
  margin-bottom:10px;
}
.ky-h1{
  font-family:var(--font-narrow);
  font-weight:200;
  font-size:clamp(40px,8vw,104px);
  line-height:.94;
  letter-spacing:-.02em;
  transform:skewX(-3deg);
  transform-origin:left bottom;
}
.ky-h2{
  font-family:var(--font-narrow);
  font-weight:200;
  font-size:clamp(26px,4vw,46px);
  line-height:1.04;
  letter-spacing:-.015em;
}
.ky-h3{
  font-size:clamp(18px,2.2vw,23px);
  font-weight:700;
  line-height:1.35;
  letter-spacing:.01em;
}
.ky-lead{
  font-size:clamp(16px,1.6vw,19px);
  line-height:1.75;
  color:var(--mist);
  max-width:62ch;
}

.ky-grid{
  display:grid;
  gap:clamp(14px,2vw,22px);
  grid-template-columns:repeat(12,minmax(0,1fr));
}
.ky-col-3{grid-column:span 3;}
.ky-col-4{grid-column:span 4;}
.ky-col-6{grid-column:span 6;}
.ky-col-8{grid-column:span 8;}
.ky-col-12{grid-column:span 12;}

/* ---------- 5. 按钮 ---------- */
.ky-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:13px 22px;
  border-radius:var(--radius-pill);
  border:2px solid var(--grid);
  background:var(--turf);
  color:var(--chalk);
  font-family:var(--font-sans);
  font-size:15px;
  font-weight:600;
  letter-spacing:.04em;
  line-height:1.2;
  box-shadow:var(--shadow-soft);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),
             background-color var(--dur) var(--ease),color var(--dur) var(--ease),
             box-shadow var(--dur) var(--ease);
}
.ky-btn:hover,.ky-btn:focus-visible{
  color:var(--chalk);
  border-color:var(--cyan);
  transform:translateY(-2px);
  box-shadow:4px 7px 0 rgba(3,17,13,.5);
}
.ky-btn--solid{
  background:var(--cyan);
  border-color:var(--cyan);
  color:var(--carbon);
}
.ky-btn--solid:hover,.ky-btn--solid:focus-visible{
  background:var(--amber);
  border-color:var(--amber);
  color:var(--carbon);
}
.ky-btn--ghost{background:transparent;}
.ky-btn--orange{
  background:var(--orange);
  border-color:var(--orange);
  color:var(--carbon);
}
.ky-btn--orange:hover,.ky-btn--orange:focus-visible{
  background:var(--amber);
  border-color:var(--amber);
  color:var(--carbon);
}

/* ---------- 6. 标签 ---------- */
.ky-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 10px;
  border-radius:6px;
  border:1px solid var(--grid);
  background:rgba(3,17,13,.42);
  color:var(--mist);
  font-family:var(--font-mono);
  font-size:12px;
  line-height:1.3;
  letter-spacing:.14em;
  text-transform:uppercase;
}
.ky-tag--cyan{background:var(--cyan);border-color:var(--cyan);color:var(--carbon);font-weight:700;}
.ky-tag--orange{background:var(--orange);border-color:var(--orange);color:var(--carbon);font-weight:700;}
.ky-tag--amber{background:var(--amber);border-color:var(--amber);color:var(--carbon);font-weight:700;}

/* ---------- 7. 信息板 ---------- */
.ky-panel{
  background:var(--turf);
  border:2px solid var(--grid);
  border-radius:var(--radius-panel);
  box-shadow:var(--shadow-hard);
  padding:clamp(18px,2.2vw,26px);
}
.ky-panel--paper{
  background:var(--paper);
  border-color:var(--carbon);
  color:#0b2a22;
  box-shadow:6px 6px 0 rgba(3,17,13,.75);
}
.ky-panel--paper a{color:#0a5c47;}
.ky-panel--paper a:hover{color:var(--orange);}

/* ---------- 8. 图片容器 ---------- */
.ky-media{
  position:relative;
  display:block;
  overflow:hidden;
  border-radius:var(--radius-media);
  border:2px solid var(--grid);
  background:linear-gradient(140deg,var(--turf) 0%,var(--carbon) 100%);
  box-shadow:var(--shadow-soft);
}
.ky-media>img,
.ky-media>svg,
.ky-media>video{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
}
.ky-media--wide{aspect-ratio:21/9;}
.ky-media--landscape{aspect-ratio:16/9;}
.ky-media--square{aspect-ratio:1/1;}
.ky-media--portrait{aspect-ratio:3/4;}
.ky-media__badge{
  position:absolute;
  top:12px;
  left:12px;
  z-index:2;
}
.ky-media__cap{
  position:absolute;
  left:12px;
  right:12px;
  bottom:12px;
  z-index:2;
  padding:7px 10px;
  border-radius:8px;
  border:1px solid var(--grid);
  background:rgba(3,17,13,.74);
  color:var(--chalk);
  font-family:var(--font-mono);
  font-size:11px;
  line-height:1.5;
  letter-spacing:.14em;
}

/* ---------- 9. 面包屑 ---------- */
.ky-breadcrumb{margin:0 0 clamp(16px,2vw,26px);}
.ky-breadcrumb__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  list-style:none;
  margin:0;
  padding:0;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--mist);
}
.ky-breadcrumb__list li{display:inline-flex;align-items:center;gap:8px;}
.ky-breadcrumb__list li+li::before{
  content:"/";
  color:var(--grid);
}
.ky-breadcrumb__link{color:var(--mist);}
.ky-breadcrumb__link:hover{color:var(--cyan);}
.ky-breadcrumb [aria-current="page"]{color:var(--chalk);}

/* ---------- 10. 跳过链接 ---------- */
.ky-skip{
  position:fixed;
  top:-140px;
  left:clamp(12px,3vw,32px);
  z-index:200;
  display:inline-flex;
  align-items:center;
  padding:12px 22px;
  border-radius:var(--radius-pill);
  border:2px solid var(--carbon);
  background:var(--cyan);
  color:var(--carbon);
  font-size:15px;
  font-weight:700;
  letter-spacing:.04em;
  box-shadow:0 10px 26px rgba(3,17,13,.55);
  transition:top var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.ky-skip:focus,
.ky-skip:focus-visible{
  top:14px;
  color:var(--carbon);
  background:var(--amber);
}

/* ---------- 11. 页头 ---------- */
.ky-header{
  position:sticky;
  top:0;
  z-index:80;
  background:linear-gradient(180deg,#06281F 0%,#06281F 74%,rgba(6,40,31,.96) 100%);
  border-bottom:1px solid var(--grid);
}
.ky-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:3px;
  background:rgba(29,90,69,.55);
  pointer-events:none;
}
.ky-progress__bar{
  display:block;
  width:0;
  height:100%;
  background:linear-gradient(90deg,var(--cyan) 0%,var(--amber) 62%,var(--orange) 100%);
  box-shadow:0 0 12px rgba(53,242,208,.55);
  transition:width .12s linear;
}
.ky-header__inner{
  position:relative;
  width:100%;
  max-width:var(--wrap-max);
  margin:0 auto;
  padding:12px var(--gutter);
  display:flex;
  align-items:center;
  gap:14px;
}

/* 品牌浮岛 */
.ky-header__brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  padding:7px 18px 7px 7px;
  border-radius:var(--radius-pill);
  border:2px solid var(--grid);
  background:var(--turf);
  color:var(--chalk);
  box-shadow:var(--shadow-soft);
  transition:border-color var(--dur) var(--ease),transform var(--dur) var(--ease),
             box-shadow var(--dur) var(--ease),color var(--dur) var(--ease);
}
.ky-header__brand:hover,
.ky-header__brand:focus-visible{
  color:var(--chalk);
  border-color:var(--cyan);
  transform:translateY(-2px);
  box-shadow:4px 7px 0 rgba(3,17,13,.55);
}
.ky-brand__mark{
  display:grid;
  place-items:center;
  flex:0 0 auto;
  width:42px;
  height:42px;
  border-radius:50%;
  background:var(--cyan);
  color:var(--carbon);
  font-family:var(--font-mono);
  font-size:15px;
  font-weight:700;
  letter-spacing:.04em;
  line-height:1;
}
.ky-brand__text{
  display:flex;
  flex-direction:column;
  line-height:1.12;
}
.ky-brand__name{
  font-size:16px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--chalk);
}
.ky-brand__tag{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.2em;
  color:var(--mist);
}

/* 栏目浮岛 */
.ky-nav{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:8px;
  padding:6px;
  border-radius:var(--radius-pill);
  border:2px solid var(--grid);
  background:var(--turf);
  box-shadow:var(--shadow-soft);
}
.ky-nav__list{
  display:flex;
  align-items:center;
  gap:2px;
  margin:0;
  padding:0;
  list-style:none;
}
.ky-nav__link{
  display:block;
  padding:9px 14px;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  color:var(--mist);
  font-size:14px;
  font-weight:500;
  letter-spacing:.02em;
  white-space:nowrap;
  transition:color var(--dur) var(--ease),background-color var(--dur) var(--ease),
             border-color var(--dur) var(--ease);
}
.ky-nav__link:hover{
  color:var(--chalk);
  background:rgba(53,242,208,.1);
  border-color:var(--grid);
}
.ky-nav__link[aria-current="page"]{
  color:var(--carbon);
  background:var(--cyan);
  border-color:var(--cyan);
  font-weight:700;
}
.ky-nav__cta{
  margin-left:4px;
  padding:10px 18px;
  font-size:14px;
  box-shadow:none;
}
.ky-nav__cta:hover,.ky-nav__cta:focus-visible{box-shadow:none;}

/* 移动按钮 */
.ky-nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  margin-left:auto;
  padding:10px 16px;
  border-radius:var(--radius-pill);
  border:2px solid var(--grid);
  background:var(--turf);
  color:var(--chalk);
  font-family:var(--font-sans);
  font-size:14px;
  font-weight:600;
  letter-spacing:.08em;
  box-shadow:var(--shadow-soft);
  cursor:pointer;
  transition:border-color var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.ky-nav-toggle:hover{border-color:var(--cyan);}
.ky-nav-toggle__bars{
  display:grid;
  gap:4px;
  width:18px;
  flex:0 0 auto;
}
.ky-nav-toggle__bars span{
  display:block;
  height:2px;
  border-radius:2px;
  background:var(--cyan);
  transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.ky-header[data-open] .ky-nav-toggle__bars span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.ky-header[data-open] .ky-nav-toggle__bars span:nth-child(2){opacity:0;}
.ky-header[data-open] .ky-nav-toggle__bars span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- 12. 页脚 ---------- */
.ky-footer{
  position:relative;
  z-index:1;
  margin-top:clamp(56px,8vw,110px);
  padding:clamp(40px,6vw,64px) 0 26px;
  border-top:2px solid var(--grid);
  background:
    radial-gradient(circle at 86% -20%,rgba(53,242,208,.16),transparent 58%),
    radial-gradient(circle at 4% 120%,rgba(255,106,42,.14),transparent 55%),
    var(--carbon);
  color:var(--mist);
  font-size:15px;
}
.ky-footer::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  opacity:.45;
  background-image:linear-gradient(to right,rgba(29,90,69,.9) 1px,transparent 1px);
  background-size:88px 100%;
}
.ky-footer__inner{
  position:relative;
  z-index:1;
  width:100%;
  max-width:var(--wrap-max);
  margin:0 auto;
  padding:0 var(--gutter);
}
.ky-footer__top{
  display:grid;
  grid-template-columns:1.15fr .85fr 1.25fr;
  gap:clamp(24px,4vw,56px);
  align-items:start;
}
.ky-footer__brand{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:16px;
}
.ky-footer__id{
  display:flex;
  align-items:center;
  gap:12px;
}
.ky-footer__name{
  font-size:18px;
  font-weight:700;
  letter-spacing:.06em;
  line-height:1.35;
  color:var(--chalk);
}
.ky-footer__tag{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--cyan);
}
.ky-footer__service{
  padding-left:12px;
  border-left:2px solid var(--orange);
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.04em;
  color:var(--mist);
}
.ky-footer__title{
  margin-bottom:16px;
  padding-bottom:10px;
  border-bottom:1px solid var(--grid);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.3em;
  text-transform:uppercase;
  color:var(--cyan);
}
.ky-footer__list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:8px 20px;
  margin:0;
  padding:0;
  list-style:none;
}
.ky-footer__link{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:4px 0;
  border-bottom:1px solid transparent;
  color:var(--chalk);
  font-size:15px;
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.ky-footer__link::before{
  content:"";
  width:6px;
  height:6px;
  flex:0 0 auto;
  border:1px solid var(--grid);
  background:transparent;
  transition:background-color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.ky-footer__link:hover,
.ky-footer__link:focus-visible{
  color:var(--cyan);
  border-bottom-color:var(--grid);
}
.ky-footer__link:hover::before,
.ky-footer__link:focus-visible::before{
  background:var(--cyan);
  border-color:var(--cyan);
}
.ky-contact{display:grid;}
.ky-contact__row{
  display:grid;
  grid-template-columns:56px minmax(0,1fr) auto;
  gap:12px;
  align-items:center;
  padding:11px 0;
  border-bottom:1px dashed var(--grid);
}
.ky-contact__label{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--mist);
}
.ky-contact__value{
  color:var(--chalk);
  font-size:15px;
  line-height:1.5;
  word-break:break-word;
}
a.ky-contact__value:hover,
a.ky-contact__value:focus-visible{color:var(--cyan);}
.ky-copy{
  padding:5px 12px;
  border-radius:var(--radius-pill);
  border:1px solid var(--grid);
  background:transparent;
  color:var(--mist);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  cursor:pointer;
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease),
             background-color var(--dur) var(--ease);
}
.ky-copy:hover,
.ky-copy:focus-visible{
  color:var(--cyan);
  border-color:var(--cyan);
}
.ky-copy[data-state="done"]{
  background:var(--cyan);
  border-color:var(--cyan);
  color:var(--carbon);
}
.ky-copy[data-state="fail"]{
  background:var(--orange);
  border-color:var(--orange);
  color:var(--carbon);
}
.ky-footer__note{
  margin-top:14px;
  font-size:13px;
  line-height:1.75;
  color:var(--mist);
  opacity:.88;
}
.ky-footer__legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:clamp(28px,4vw,44px);
  padding-top:18px;
  border-top:1px solid var(--grid);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--mist);
}

/* ---------- 13. 响应式 ---------- */
@media (max-width:1180px){
  .ky-nav__link{padding:9px 11px;font-size:13px;}
  .ky-nav__cta{padding:9px 14px;font-size:13px;}
}

@media (max-width:1024px){
  .ky-nav{
    position:absolute;
    top:calc(100% + 10px);
    left:var(--gutter);
    right:var(--gutter);
    margin-left:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:10px;
    padding:12px;
    border-radius:22px;
    box-shadow:8px 8px 0 rgba(3,17,13,.6);
    max-height:calc(100vh - 150px);
    overflow-y:auto;
  }
  .ky-header[data-open] .ky-nav{
    display:flex;
    animation:ky-drop var(--dur) var(--ease) both;
  }
  .ky-nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:4px;
  }
  .ky-nav__link{
    padding:13px 16px;
    border-radius:14px;
    font-size:16px;
  }
  .ky-nav__cta{
    margin-left:0;
    justify-content:center;
    padding:13px 18px;
    font-size:15px;
  }
  .ky-nav-toggle{display:inline-flex;}
  .ky-col-3,.ky-col-4{grid-column:span 6;}
  .ky-col-6,.ky-col-8{grid-column:span 12;}

  .ky-footer__top{grid-template-columns:1fr 1fr;}
  .ky-footer__contact{grid-column:1 / -1;}
}

@media (max-width:760px){
  body{font-size:16px;}
  .ky-section__head{
    grid-template-columns:1fr;
    align-items:start;
    gap:12px;
  }
  .ky-footer__top{grid-template-columns:1fr;gap:30px;}
  .ky-footer__contact{grid-column:auto;}
  .ky-footer__legal{
    flex-direction:column;
    align-items:flex-start;
    gap:8px;
  }
  .ky-col-3,.ky-col-4,.ky-col-6,.ky-col-8{grid-column:span 12;}
}

@media (max-width:560px){
  .ky-brand__tag{display:none;}
  .ky-brand__name{font-size:15px;}
  .ky-brand__mark{width:38px;height:38px;font-size:14px;}
  .ky-header__brand{padding:6px 14px 6px 6px;gap:9px;}
  .ky-footer__list{grid-template-columns:1fr;}
  .ky-contact__row{grid-template-columns:1fr auto;gap:6px 12px;}
  .ky-contact__label{grid-column:1 / -1;letter-spacing:.24em;}
}

@keyframes ky-drop{
  from{opacity:0;transform:translateY(-6px);}
  to{opacity:1;transform:translateY(0);}
}

/* ---------- 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;
    scroll-behavior:auto !important;
  }
  .ky-btn:hover,
  .ky-header__brand:hover,
  .ky-header__brand:focus-visible{transform:none;}
}