/* ==========================================================================
   开云体育 · 共享外壳样式 /assets/site.css
   ========================================================================== */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,blockquote,dl,dt,dd{margin:0;padding:0}
ul,ol{list-style:none}
img,svg,video,canvas{display:block;max-width:100%;height:auto}
button,input,select,textarea{font:inherit;color:inherit;background:none;border:0}
button{cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--jade);outline-offset:3px;border-radius:8px}

/* ---------- 2. 设计变量 ---------- */
:root{
  --ink:#07090C;
  --coal:#14181D;
  --graphite:#1F252C;
  --jade:#00C97B;
  --jade-deep:#04784C;
  --amber:#FF8A1F;
  --ice:#58C8F2;
  --mist:#F2F5F7;
  --stone:#9AA5B1;
  --glass:#FFFFFF14;
  --violet:#2A2436;

  --line:rgba(242,245,247,.10);
  --line-strong:rgba(242,245,247,.20);
  --line-jade:rgba(0,201,123,.42);

  --top-h:72px;
  --rail-w:272px;
  --wrap:1220px;

  --r-sm:10px;
  --r-md:16px;
  --r-lg:22px;
  --r-pill:999px;

  --font-head:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;

  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow-lift:0 26px 52px -32px rgba(0,0,0,.95);
}
@media (max-width:1023px){ :root{--top-h:64px} }

/* ---------- 3. 页面基底 ---------- */
body{
  min-height:100vh;
  padding-top:var(--top-h);
  background-color:var(--ink);
  background-image:
    radial-gradient(900px 520px at 78% -10%, rgba(0,201,123,.10), transparent 65%),
    radial-gradient(760px 460px at 8% 4%, rgba(88,200,242,.08), transparent 62%),
    radial-gradient(1100px 700px at 50% 112%, rgba(42,36,54,.55), transparent 70%);
  background-repeat:no-repeat;
  color:var(--mist);
  font-family:var(--font-head);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.012em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
@media (max-width:767px){ body{font-size:16px} }

#main-content{display:block;scroll-margin-top:calc(var(--top-h) + 16px)}
@media (min-width:1024px){ #main-content{padding-left:var(--rail-w)} }

.ky-visually-hidden{
  position:absolute!important;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;
}

/* ---------- 4. 排版 ---------- */
.ky-h1,.ky-h2,.ky-h3,.ky-h4{
  font-family:var(--font-head);font-weight:900;letter-spacing:-.02em;
  line-height:1.08;color:var(--mist);
}
.ky-h1{font-size:clamp(2.2rem,6vw,4.5rem)}
.ky-h2{font-size:clamp(1.65rem,3.4vw,2.75rem)}
.ky-h3{font-size:clamp(1.25rem,2vw,1.7rem);line-height:1.25}
.ky-h4{font-size:1.05rem;font-weight:800;letter-spacing:-.01em;line-height:1.4}
.ky-lead{max-width:64ch;font-size:clamp(1rem,1.3vw,1.15rem);color:var(--stone)}
.ky-label{
  display:inline-block;font-size:12px;font-weight:800;
  letter-spacing:.14em;text-transform:uppercase;color:var(--stone);
}
.ky-num{font-variant-numeric:tabular-nums;letter-spacing:.01em}
.ky-note{font-size:14px;line-height:1.7;color:var(--stone)}
.ky-ink{color:var(--jade)}
.ky-amber{color:var(--amber)}
.ky-ice{color:var(--ice)}
.ky-dim{color:var(--stone)}
.ky-rule{height:1px;background:var(--line);border:0;margin:32px 0}
p+p{margin-top:1em}

/* ---------- 5. 容器 / 章节 / 网格 ---------- */
.ky-container{width:min(100% - 36px,var(--wrap));margin-inline:auto}
@media (min-width:768px){ .ky-container{width:min(100% - 64px,var(--wrap))} }

.ky-section{position:relative;padding:64px 0}
@media (min-width:768px){ .ky-section{padding:88px 0} }
.ky-section--tight{padding:40px 0}
.ky-section--coal{background:var(--coal);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.ky-section--dark{background:linear-gradient(180deg,var(--ink),#0B0F13)}

.ky-grid{display:grid;gap:20px}
.ky-grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.ky-grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.ky-grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}
.ky-grid--auto{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}

.ky-split{display:grid;gap:28px;grid-template-columns:minmax(0,1fr)}
@media (min-width:1024px){
  .ky-split{grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:36px}
}
@media (max-width:1023px){
  .ky-grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ky-grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:599px){
  .ky-grid--2,.ky-grid--3,.ky-grid--4{grid-template-columns:minmax(0,1fr)}
  .ky-grid--auto{grid-template-columns:repeat(auto-fill,minmax(190px,1fr))}
}

/* ---------- 6. 按钮 ---------- */
.ky-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 18px;border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:14px;font-weight:800;letter-spacing:.02em;line-height:1.2;
  transition:transform .18s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.ky-btn:active{transform:scale(.98)}
.ky-btn--jade{
  color:#04170F;
  background:linear-gradient(135deg,var(--jade),#38E39E);
  box-shadow:0 12px 30px -16px rgba(0,201,123,.95);
}
.ky-btn--jade:hover{transform:translateY(-2px);box-shadow:0 18px 36px -16px rgba(0,201,123,.95)}
.ky-btn--ghost{
  color:var(--mist);background:var(--glass);
  border-color:var(--line-jade);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.ky-btn--ghost:hover{border-color:var(--jade);color:#FFFFFF}
.ky-btn--ice{color:var(--ink);background:var(--ice)}
.ky-btn--ice:hover{transform:translateY(-2px)}

/* ---------- 7. 卡片 / 标签 / 媒体 ---------- */
.ky-card{
  position:relative;padding:22px;border-radius:var(--r-lg);
  background:var(--coal);border:1px solid var(--line);
}
.ky-card--glass{
  background:var(--glass);border-color:var(--line-strong);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.ky-card--lift{transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease)}
.ky-card--lift:hover{
  transform:translateY(-4px);
  border-color:var(--line-jade);
  box-shadow:var(--shadow-lift);
}

.ky-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);
  font-size:12px;font-weight:700;letter-spacing:.08em;
  color:var(--stone);
}
.ky-tag--jade{color:var(--jade);border-color:var(--line-jade);background:rgba(0,201,123,.10)}
.ky-tag--amber{color:var(--amber);border-color:rgba(255,138,31,.42);background:rgba(255,138,31,.10)}
.ky-tag--ice{color:var(--ice);border-color:rgba(88,200,242,.42);background:rgba(88,200,242,.10)}

.ky-media{
  position:relative;display:block;width:100%;overflow:hidden;
  border-radius:var(--r-lg);border:1px solid var(--line);
  background-image:linear-gradient(135deg,var(--graphite),var(--violet));
}
.ky-media img{width:100%;height:100%;object-fit:cover}
.ky-media--16x9{aspect-ratio:16/9}
.ky-media--4x3{aspect-ratio:4/3}
.ky-media--1x1{aspect-ratio:1/1}
.ky-media--21x9{aspect-ratio:21/9}
.ky-media--3x4{aspect-ratio:3/4}
.ky-media__tag{
  position:absolute;left:14px;bottom:14px;
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:var(--r-pill);
  background:rgba(7,9,12,.72);border:1px solid var(--line-strong);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--mist);
}

/* ---------- 8. 面包屑 ---------- */
.ky-breadcrumb{font-size:13px;color:var(--stone)}
.ky-breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.ky-breadcrumb li{display:flex;align-items:center;gap:10px;min-height:24px}
.ky-breadcrumb li+li::before{content:"";width:12px;height:1px;background:var(--line-strong)}
.ky-breadcrumb a:hover{color:var(--jade)}
.ky-breadcrumb [aria-current="page"]{color:var(--mist)}

/* ---------- 9. 显示动效协议 ---------- */
[data-reveal]{
  opacity:0;transform:translateY(20px);
  transition:opacity .32s var(--ease),transform .32s var(--ease);
}
[data-reveal].is-in{opacity:1;transform:none}

/* ==========================================================================
   页头
   ========================================================================== */
.ky-header{position:relative;z-index:70}

.ky-skip{
  position:fixed;top:-90px;left:16px;z-index:9;
  padding:10px 18px;border-radius:var(--r-pill);
  background:var(--jade);color:#04170F;
  font-size:14px;font-weight:800;
  transition:top .2s var(--ease);
}
.ky-skip:focus{top:12px}

.ky-progress{
  position:fixed;top:0;left:0;right:0;height:2px;z-index:3;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--jade),var(--ice) 55%,var(--amber));
  pointer-events:none;
  transition:transform .1s linear;
}

.ky-topbar{
  position:fixed;top:0;left:0;right:0;z-index:5;height:var(--top-h);
  background:rgba(7,9,12,.80);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  backdrop-filter:blur(18px) saturate(150%);
  border-bottom:1px solid var(--line);
}
.ky-topbar__inner{
  width:min(100% - 32px,1440px);margin-inline:auto;
  height:var(--top-h);display:flex;align-items:center;gap:14px;
}
.ky-topbar__where{
  margin-left:4px;padding-left:16px;
  border-left:1px solid var(--line-strong);
  white-space:nowrap;
}
.ky-topbar__actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.ky-topbar__cta{white-space:nowrap}

/* 品牌 */
.ky-brand{display:inline-flex;align-items:center;gap:12px;min-height:44px}
.ky-brand__mark{
  position:relative;flex:0 0 auto;width:34px;height:34px;border-radius:11px;
  background-image:linear-gradient(140deg,var(--jade),var(--jade-deep) 68%,var(--violet));
  box-shadow:0 10px 22px -12px rgba(0,201,123,.95);
}
.ky-brand__mark::before{
  content:"";position:absolute;top:9px;right:9px;width:8px;height:8px;
  border-radius:2px;background:var(--ink);opacity:.85;
}
.ky-brand__mark::after{
  content:"";position:absolute;left:9px;bottom:9px;width:14px;height:2px;
  border-radius:2px;background:var(--ink);opacity:.85;
}
.ky-brand__text{display:flex;flex-direction:column;line-height:1.15}
.ky-brand__name{font-weight:900;font-size:19px;letter-spacing:-.01em;color:var(--mist)}
.ky-brand__sub{font-size:10px;letter-spacing:.24em;color:var(--stone)}
.ky-brand--foot{margin-bottom:16px}

/* 汉堡 */
.ky-burger{
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  width:46px;height:46px;border-radius:var(--r-sm);
  border:1px solid var(--line-strong);background:var(--glass);
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.ky-burger:hover{border-color:var(--line-jade)}
.ky-burger__bar{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--mist);
  transition:transform .24s var(--ease),opacity .18s var(--ease);
}
body[data-open="nav"] .ky-burger{border-color:var(--line-jade);background:rgba(0,201,123,.12)}
body[data-open="nav"] .ky-burger__bar:nth-child(1){transform:translateY(7px) rotate(45deg)}
body[data-open="nav"] .ky-burger__bar:nth-child(2){opacity:0;transform:scaleX(.35)}
body[data-open="nav"] .ky-burger__bar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 侧边轨道 */
.ky-rail{
  position:fixed;top:var(--top-h);left:0;bottom:0;width:var(--rail-w);z-index:4;
  display:flex;flex-direction:column;
  overflow-y:auto;overscroll-behavior:contain;
  padding:26px 18px 22px;
  background-image:linear-gradient(180deg,rgba(20,24,29,.88),rgba(7,9,12,.95));
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-right:1px solid var(--line);
}
.ky-rail__inner{display:flex;flex-direction:column;gap:16px;min-height:100%}
.ky-rail__title{padding-left:14px}
.ky-rail__cta{display:none;width:100%}

.ky-nav{display:flex;flex-direction:column;gap:4px}
.ky-nav__item{display:block}
.ky-nav__link{
  display:flex;align-items:center;gap:12px;
  min-height:46px;padding:10px 14px;border-radius:var(--r-sm);
  color:var(--stone);font-size:15px;font-weight:600;
  transition:color .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
}
.ky-nav__link::before{
  content:"";flex:0 0 auto;width:6px;height:6px;border-radius:50%;
  background:var(--graphite);
  transition:background .2s var(--ease),box-shadow .2s var(--ease);
}
.ky-nav__link:hover{color:var(--mist);background:var(--glass)}
.ky-nav__link[aria-current="page"]{
  color:var(--mist);
  background-image:linear-gradient(90deg,rgba(0,201,123,.20),rgba(0,201,123,0) 80%);
  box-shadow:inset 0 0 0 1px var(--line-jade);
}
.ky-nav__link[aria-current="page"]::before{
  background:var(--jade);
  box-shadow:0 0 0 4px rgba(0,201,123,.18);
}

.ky-rail__foot{
  margin-top:auto;padding-top:18px;border-top:1px solid var(--line);
  display:flex;flex-direction:column;gap:10px;
}
.ky-rounds{
  display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;
  scroll-snap-type:x proximity;-webkit-overflow-scrolling:touch;
  scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent;
}
.ky-rounds::-webkit-scrollbar{height:3px}
.ky-rounds::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:3px}
.ky-round{
  flex:0 0 auto;scroll-snap-align:start;
  display:inline-flex;align-items:center;justify-content:center;
  min-height:36px;padding:6px 12px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);
  font-size:12px;font-weight:700;letter-spacing:.06em;
  font-variant-numeric:tabular-nums;color:var(--stone);white-space:nowrap;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.ky-round:hover{color:var(--mist);border-color:var(--line-jade);background:rgba(0,201,123,.08)}
.ky-round--live{color:var(--jade);border-color:var(--line-jade);background:rgba(0,201,123,.10)}

.ky-scrim{display:none}

/* 移动抽屉 */
@media (max-width:1023px){
  .ky-rail{
    width:min(86vw,340px);z-index:7;padding:22px 18px 28px;
    transform:translateX(-104%);
    transition:transform .3s var(--ease);
    box-shadow:0 30px 70px -30px rgba(0,0,0,.95);
  }
  body[data-open="nav"] .ky-rail{transform:none}
  .ky-rail__cta{display:inline-flex}
  .ky-scrim{
    display:block;position:fixed;inset:0;z-index:6;
    background:rgba(7,9,12,.72);
    opacity:0;visibility:hidden;
    transition:opacity .28s var(--ease),visibility .28s var(--ease);
  }
  body[data-open="nav"] .ky-scrim{opacity:1;visibility:visible}
  body[data-open="nav"]{overflow:hidden}
  .ky-topbar__where{display:none}
}

/* ==========================================================================
   页脚
   ========================================================================== */
.ky-footer{
  position:relative;margin-top:80px;overflow:hidden;
  background-color:var(--ink);
  border-top:1px solid var(--line);
}
@media (min-width:1024px){ .ky-footer{padding-left:var(--rail-w)} }

.ky-footer__stars{
  position:absolute;inset:0;pointer-events:none;opacity:.6;
  background-image:
    radial-gradient(1.5px 1.5px at 8% 18%, rgba(242,245,247,.55), transparent 70%),
    radial-gradient(1.2px 1.2px at 22% 62%, rgba(88,200,242,.60), transparent 70%),
    radial-gradient(1.6px 1.6px at 37% 28%, rgba(242,245,247,.45), transparent 70%),
    radial-gradient(1.1px 1.1px at 54% 74%, rgba(0,201,123,.70), transparent 70%),
    radial-gradient(1.4px 1.4px at 68% 22%, rgba(242,245,247,.50), transparent 70%),
    radial-gradient(1.2px 1.2px at 81% 58%, rgba(255,138,31,.60), transparent 70%),
    radial-gradient(1.5px 1.5px at 93% 34%, rgba(242,245,247,.40), transparent 70%),
    radial-gradient(640px 280px at 12% 0%, rgba(0,201,123,.10), transparent 70%),
    radial-gradient(560px 260px at 88% 8%, rgba(88,200,242,.09), transparent 70%),
    radial-gradient(760px 340px at 50% 120%, rgba(42,36,54,.60), transparent 72%);
}

.ky-footer__inner{
  position:relative;z-index:1;
  width:min(100% - 36px,var(--wrap));margin-inline:auto;
  padding:64px 0 28px;
}
@media (min-width:768px){
  .ky-footer__inner{width:min(100% - 64px,var(--wrap));padding:80px 0 32px}
}

.ky-footer__grid{display:grid;gap:32px;grid-template-columns:minmax(0,1fr)}
@media (min-width:768px){ .ky-footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px} }
@media (min-width:1024px){ .ky-footer__grid{grid-template-columns:1.4fr 1.6fr 1fr 1fr;gap:44px} }

.ky-foot-col{display:flex;flex-direction:column;gap:12px}
.ky-foot-title{
  font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;
  color:var(--mist);
}
.ky-foot-note{font-size:13px;line-height:1.75;color:var(--stone);max-width:38ch}

.ky-foot-links{display:flex;flex-direction:column;gap:6px}
.ky-foot-links a{
  display:inline-flex;align-items:center;min-height:34px;
  font-size:14px;color:var(--stone);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.ky-foot-links a:hover{color:var(--jade);transform:translateX(3px)}

.ky-foot-list{display:flex;flex-direction:column;gap:14px}
.ky-foot-list li{display:flex;flex-direction:column;gap:4px}
.ky-foot-value{font-size:14px;color:var(--mist);word-break:break-word;line-height:1.6}
.ky-foot-link{
  display:inline-flex;align-items:center;min-height:34px;
  font-size:14px;font-weight:700;color:var(--jade);
  border-bottom:1px solid var(--line-jade);align-self:flex-start;
  transition:border-color .2s var(--ease);
}
.ky-foot-link:hover{border-color:var(--jade)}

.ky-footer__base{
  margin-top:48px;padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;gap:12px 24px;
}
.ky-foot-meta{font-size:13px;color:var(--stone);font-variant-numeric:tabular-nums}
.ky-foot-icp{color:var(--stone);border-bottom:1px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease)}
.ky-foot-icp:hover{color:var(--jade);border-color:var(--line-jade)}

/* 右下常驻胶囊 */
.ky-dock{
  position:fixed;right:16px;bottom:16px;z-index:55;
  display:flex;align-items:center;gap:6px;padding:7px;
  border-radius:var(--r-pill);
  background:rgba(20,24,29,.86);
  border:1px solid var(--line-strong);
  box-shadow:0 22px 46px -26px rgba(0,0,0,.95);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
@media (min-width:1024px){ .ky-dock{right:28px;bottom:28px} }
.ky-dock__link{
  display:inline-flex;align-items:center;min-height:38px;padding:0 14px;
  border-radius:var(--r-pill);
  font-size:13px;font-weight:700;color:var(--stone);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.ky-dock__link:hover{color:var(--mist);background:var(--glass)}
.ky-dock__top{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:38px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);
  font-size:13px;font-weight:700;color:var(--stone);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.ky-dock__top:hover{color:var(--mist);border-color:var(--line-jade)}
.ky-dock.is-on .ky-dock__top{
  color:var(--jade);border-color:var(--line-jade);background:rgba(0,201,123,.10);
}

/* ---------- 10. 无障碍与动效偏好 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  [data-reveal]{opacity:1;transform:none}
  .ky-btn:hover,.ky-card--lift:hover,.ky-foot-links a:hover{transform:none}
}