/* =========================================================
   球盟会主站 · /assets/site.css
   共享层：reset / 变量 / 中文排版 / 头部 / 页脚 / 基础组件
   ========================================================= */

:root{
  /* 色彩 */
  --ink:#061019;
  --panel:#0E1B26;
  --paper:#F4F1E8;
  --ink-deep:#0B1114;
  --green:#12A67A;
  --orange:#FF6A2B;
  --cyan:#6FF2D0;
  --muted:#9AA7B4;
  --edge:#D8D2C4;
  --deep:#173B32;

  /* 字体 */
  --font-display:"Source Han Sans SC","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:var(--font-display);
  --font-mono:"IBM Plex Mono","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  /* 度量 */
  --qm-header-h:96px;
  --qm-rail:clamp(16px,3vw,32px);
  --qm-gap:clamp(16px,2.4vw,28px);
  --qm-beat:clamp(48px,7vw,96px);
  --qm-max:1440px;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,figure,blockquote,ul,ol,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0}
img,svg,video{display:block;max-width:100%}
input,textarea,select{font:inherit}

/* ---------- 基础与中文排版 ---------- */
body{
  min-height:100vh;
  background:var(--ink);
  color:var(--paper);
  font-family:var(--font-body);
  font-size:clamp(16px,1.15vw,18px);
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:clip;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:900;
  line-height:1.14;
  letter-spacing:-.02em;
  text-wrap:balance;
}
h1{font-size:clamp(44px,7vw,108px);line-height:.98;letter-spacing:-.03em}
h2{font-size:clamp(28px,3.2vw,48px)}
h3{font-size:clamp(20px,2vw,26px)}
p{text-wrap:pretty}
p + p{margin-block-start:1em}
strong{font-weight:700;color:var(--paper)}
small{font-size:13px}
::selection{background:var(--green);color:var(--ink)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}

/* ---------- 可访问工具 ---------- */
.qm-sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.qm-skip{
  position:absolute;
  inset-inline-start:16px;
  inset-block-start:-120px;
  z-index:300;
  padding:10px 18px;
  background:var(--orange);
  color:var(--ink-deep);
  font-weight:700;
  font-size:14px;
  transition:inset-block-start 160ms ease;
}
.qm-skip:focus{inset-block-start:12px}

/* ---------- 布局容器 ---------- */
.qm-container{
  width:100%;
  max-width:var(--qm-max);
  margin-inline:auto;
  padding-inline:var(--qm-rail);
}
.qm-container--narrow{max-width:920px}
.qm-section{padding-block:var(--qm-beat)}
.qm-split{
  display:grid;
  grid-template-columns:38fr 62fr;
  gap:clamp(24px,4vw,64px);
  align-items:start;
}
.qm-stack{display:flex;flex-direction:column;gap:var(--qm-gap)}

/* ---------- 文本层 ---------- */
.qm-eyebrow{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.18em;
  color:var(--cyan);
  text-transform:uppercase;
}
.qm-lead{
  font-size:clamp(17px,1.6vw,20px);
  line-height:1.8;
  color:rgba(244,241,232,.82);
  max-width:38ch;
}
.qm-mono{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.04em;
  color:var(--muted);
}
.qm-rule{
  height:8px;
  border:0;
  background-image:repeating-linear-gradient(90deg,rgba(154,167,180,.55) 0 1px,transparent 1px 8px);
}

/* ---------- 按钮 ---------- */
.qm-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:12px 20px;
  border:1px solid transparent;
  font-family:var(--font-display);
  font-weight:700;
  font-size:14px;
  line-height:1.2;
  letter-spacing:.02em;
  cursor:pointer;
  transition:transform 160ms ease,background-color 160ms ease,color 160ms ease,border-color 160ms ease;
}
.qm-btn__arrow{font-family:var(--font-mono);font-size:13px;transition:transform 160ms ease}
.qm-btn:hover .qm-btn__arrow{transform:translateX(3px)}
.qm-btn--primary{background:var(--orange);color:var(--ink-deep);border-color:var(--orange)}
.qm-btn--primary:hover{background:var(--cyan);border-color:var(--cyan);transform:translateY(-1px)}
.qm-btn--ghost{background:transparent;color:var(--paper);border-color:rgba(244,241,232,.34)}
.qm-btn--ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.qm-btn--quiet{background:var(--green);color:#04120E;border-color:var(--green)}
.qm-btn--quiet:hover{background:var(--cyan);border-color:var(--cyan)}

/* ---------- 纸白叠层 ---------- */
.qm-paper{
  background:var(--paper);
  color:var(--ink-deep);
  border:1px solid var(--ink-deep);
  box-shadow:6px 6px 0 var(--edge);
  padding:clamp(20px,3vw,34px);
}
.qm-paper .qm-mono{color:#5B666F}
.qm-paper a:hover{color:var(--green)}

/* ---------- 标签与状态 ---------- */
.qm-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:4px 12px;
  border:1px solid rgba(154,167,180,.42);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--muted);
  white-space:nowrap;
}
.qm-tag--live{border-color:var(--orange);color:var(--orange)}
.qm-dot{
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 0 3px rgba(111,242,208,.18);
  flex:0 0 auto;
}

/* ---------- 横向主题带 ---------- */
.qm-band{
  background:var(--deep);
  border-block:1px solid rgba(111,242,208,.2);
  padding-block:clamp(32px,4vw,56px);
}

/* ---------- 面包屑 ---------- */
.qm-breadcrumb{
  padding-block:14px;
  border-block-end:1px solid rgba(154,167,180,.22);
}
.qm-breadcrumb__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--muted);
}
.qm-breadcrumb__item{display:inline-flex;align-items:center;gap:8px}
.qm-breadcrumb__item + .qm-breadcrumb__item::before{content:"/";color:var(--green)}
.qm-breadcrumb__link{transition:color 160ms ease}
.qm-breadcrumb__link:hover{color:var(--cyan)}
.qm-breadcrumb__item[aria-current="page"]{color:var(--paper)}

/* ---------- 图片容器（页面阶段放置图片） ---------- */
.qm-media{
  position:relative;
  display:block;
  overflow:hidden;
  width:100%;
  aspect-ratio:16/9;
  border:1px solid rgba(154,167,180,.32);
  background-color:var(--deep);
  background-image:linear-gradient(120deg,rgba(18,166,122,.28),rgba(6,16,25,.92) 62%);
}
.qm-media--wide{aspect-ratio:21/9}
.qm-media--square{aspect-ratio:1/1}
.qm-media--tall{aspect-ratio:4/5}
.qm-media > img,
.qm-media > video{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.qm-media::after{
  content:"";
  position:absolute;
  inset-block-start:10px;
  inset-inline-end:10px;
  width:10px;
  height:10px;
  border-block-start:1px solid var(--cyan);
  border-inline-end:1px solid var(--cyan);
  pointer-events:none;
}
.qm-media__caption{
  position:absolute;
  inset-block-end:0;
  inset-inline:0;
  padding:10px 14px;
  background:linear-gradient(0deg,rgba(6,16,25,.92),rgba(6,16,25,0));
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.06em;
  color:var(--cyan);
}

/* ---------- 手风琴 ---------- */
.qm-acc{border-block-start:1px solid rgba(154,167,180,.28)}
.qm-acc__item{border-block-end:1px solid rgba(154,167,180,.28)}
.qm-acc__btn{
  position:relative;
  width:100%;
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:16px;
  padding:20px 0 20px 18px;
  text-align:start;
  cursor:pointer;
  font-family:var(--font-display);
  font-weight:700;
  font-size:clamp(16px,1.5vw,18px);
  line-height:1.55;
  color:var(--paper);
  transition:color 160ms ease;
}
.qm-acc__btn::before{
  content:"";
  position:absolute;
  inset-inline-start:0;
  inset-block:10px;
  width:2px;
  background:var(--orange);
  transform:scaleY(0);
  transform-origin:top;
  transition:transform 200ms ease;
}
.qm-acc__btn:hover{color:var(--cyan)}
.qm-acc__btn[aria-expanded="true"]::before{transform:scaleY(1)}
.qm-acc__icon{
  position:relative;
  flex:0 0 auto;
  width:14px;
  height:14px;
  margin-block-start:7px;
}
.qm-acc__icon::before,
.qm-acc__icon::after{
  content:"";
  position:absolute;
  inset-inline:0;
  inset-block-start:6px;
  height:2px;
  background:var(--cyan);
  transition:transform 200ms ease,opacity 160ms ease;
}
.qm-acc__icon::after{transform:rotate(90deg)}
.qm-acc__btn[aria-expanded="true"] .qm-acc__icon::after{transform:rotate(0deg);opacity:0}
.qm-acc__panel{
  padding:0 0 22px 18px;
  font-size:16px;
  line-height:1.8;
  color:rgba(244,241,232,.76);
  animation:qmFade 160ms ease both;
}
.qm-acc__panel[hidden]{display:none}
.qm-acc__panel > * + *{margin-block-start:12px}
@keyframes qmFade{from{opacity:0}to{opacity:1}}

/* =========================================================
   头部
   ========================================================= */
.qm-header{
  position:fixed;
  inset-block-start:0;
  inset-inline:0;
  z-index:100;
  color:var(--paper);
  background:transparent;
  transition:background-color 240ms ease,box-shadow 240ms ease,backdrop-filter 240ms ease;
}
.qm-header[data-scrolled]{
  background:rgba(6,16,25,.96);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  box-shadow:0 1px 0 rgba(111,242,208,.2);
}
.qm-header__bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:6px var(--qm-rail);
  border-block-end:1px solid rgba(111,242,208,.16);
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.1em;
  color:var(--cyan);
}
.qm-bar__item{display:inline-flex;align-items:center;gap:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.qm-bar__dot{width:5px;height:5px;background:var(--orange);flex:0 0 auto}
.qm-bar__meta{color:rgba(154,167,180,.9);white-space:nowrap}

.qm-header__inner{
  display:flex;
  align-items:center;
  gap:clamp(16px,2.4vw,40px);
  max-width:var(--qm-max);
  margin-inline:auto;
  padding:12px var(--qm-rail);
}

.qm-brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.qm-brand__mark{
  position:relative;
  display:grid;
  place-items:center;
  width:36px;
  height:36px;
  border:1.5px solid var(--cyan);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:0;
  color:var(--cyan);
}
.qm-brand__mark::after{
  content:"";
  position:absolute;
  inset-block-end:-1.5px;
  inset-inline-start:-1.5px;
  width:8px;
  height:8px;
  background:var(--orange);
}
.qm-brand__text{display:flex;flex-direction:column;line-height:1.15}
.qm-brand__name{font-family:var(--font-display);font-weight:900;font-size:17px;letter-spacing:.01em}
.qm-brand__tag{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;color:var(--muted);margin-block-start:3px}

.qm-nav{
  display:flex;
  align-items:center;
  gap:clamp(6px,1.4vw,20px);
  margin-inline-start:auto;
}
.qm-nav__list{
  display:flex;
  align-items:center;
  gap:clamp(6px,1.4vw,20px);
}
.qm-nav__item{display:inline-flex}
.qm-nav__link{
  position:relative;
  display:inline-flex;
  align-items:center;
  padding:8px 2px;
  font-size:14px;
  font-weight:500;
  letter-spacing:.02em;
  color:rgba(244,241,232,.74);
  transition:color 180ms ease;
}
.qm-nav__link::after{
  content:"";
  position:absolute;
  inset-inline:0;
  inset-block-end:0;
  height:2px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform 180ms ease;
}
.qm-nav__link:hover{color:var(--cyan)}
.qm-nav__link:hover::after{transform:scaleX(1)}
.qm-nav__link[aria-current="page"]{color:var(--paper)}
.qm-nav__link[aria-current="page"]::after{transform:scaleX(1);background:var(--orange)}
.qm-nav__cta{display:none}

.qm-header__cta{flex:0 0 auto;padding:10px 16px}

.qm-navtoggle{
  display:none;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  width:44px;
  height:40px;
  border:1px solid rgba(244,241,232,.3);
  cursor:pointer;
  transition:border-color 160ms ease;
}
.qm-navtoggle:hover{border-color:var(--cyan)}
.qm-navtoggle__bar{
  display:block;
  width:18px;
  height:2px;
  background:var(--paper);
  transition:transform 200ms ease,opacity 160ms ease;
}
.qm-navtoggle[aria-expanded="true"] .qm-navtoggle__bar:nth-child(1){transform:translateY(7px) rotate(45deg)}
.qm-navtoggle[aria-expanded="true"] .qm-navtoggle__bar:nth-child(2){opacity:0}
.qm-navtoggle[aria-expanded="true"] .qm-navtoggle__bar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.qm-scroll-pad{display:block;height:var(--qm-header-h)}

/* ---------- 头部平板 / 移动 ---------- */
@media (max-width:1100px){
  .qm-nav__link{font-size:13.5px}
  .qm-header__cta{display:none}
}
@media (max-width:900px){
  :root{--qm-header-h:88px}
  .qm-navtoggle{display:inline-flex;margin-inline-start:auto}
  .qm-nav{
    position:absolute;
    inset-block-start:100%;
    inset-inline:0;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    margin-inline-start:0;
    padding:8px var(--qm-rail) 24px;
    background:var(--ink);
    border-block-start:1px solid rgba(111,242,208,.24);
    border-block-end:1px solid rgba(111,242,208,.16);
    opacity:0;
    visibility:hidden;
    transform:translateY(-12px);
    transition:opacity 200ms ease,transform 200ms ease,visibility 200ms;
  }
  .qm-nav[data-open]{opacity:1;visibility:visible;transform:none}
  .qm-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .qm-nav__item{display:block}
  .qm-nav__item + .qm-nav__item{border-block-start:1px solid rgba(154,167,180,.16)}
  .qm-nav__link{
    display:flex;
    width:100%;
    padding:14px 4px;
    font-size:15.5px;
    color:var(--paper);
  }
  .qm-nav__link::after{display:none}
  .qm-nav__link:hover{color:var(--cyan)}
  .qm-nav__link[aria-current="page"]{
    color:var(--orange);
    box-shadow:inset 3px 0 0 var(--orange);
    padding-inline-start:12px;
  }
  .qm-nav__cta{display:inline-flex;margin-block-start:18px;justify-content:center}
}
@media (max-width:600px){
  .qm-bar__meta{display:none}
  .qm-brand__tag{display:none}
  .qm-brand__name{font-size:16px}
}

/* =========================================================
   页脚
   ========================================================= */
.qm-footer{
  position:relative;
  background:var(--ink);
  color:var(--paper);
  border-block-start:1px solid rgba(111,242,208,.2);
}
.qm-footer::before{
  content:"";
  display:block;
  height:8px;
  background-image:repeating-linear-gradient(90deg,rgba(111,242,208,.45) 0 1px,transparent 1px 8px);
  opacity:.55;
}
.qm-footer__grid{
  display:grid;
  grid-template-columns:minmax(280px,38fr) 62fr;
  gap:clamp(32px,5vw,72px);
  padding-block:clamp(44px,6vw,80px) clamp(32px,4vw,52px);
}
.qm-footer__brand{max-width:42ch}
.qm-footer__name{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(22px,2.4vw,28px);
  letter-spacing:-.01em;
}
.qm-footer__tagline{
  margin-block-start:6px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  color:var(--green);
}
.qm-footer__summary{
  margin-block-start:18px;
  font-size:15px;
  line-height:1.8;
  color:rgba(244,241,232,.66);
}
.qm-footer__contact{
  margin-block-start:26px;
  display:grid;
  gap:10px;
}
.qm-contact{
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  gap:12px;
  align-items:baseline;
  font-size:13.5px;
}
.qm-contact__label{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--muted);
  white-space:nowrap;
}
.qm-contact__value{color:var(--paper);word-break:break-word}
.qm-footer__note{
  margin-block-start:12px;
  font-size:12.5px;
  line-height:1.7;
  color:rgba(154,167,180,.82);
}
.qm-footer__cols{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(20px,3vw,36px);
}
.qm-footer__coltitle{
  font-family:var(--font-mono);
  font-size:11.5px;
  font-weight:400;
  letter-spacing:.18em;
  color:var(--cyan);
  margin-block-end:14px;
}
.qm-footer__list{display:grid;gap:2px}
.qm-footer__link{
  display:inline-block;
  padding-block:5px;
  font-size:14px;
  color:rgba(244,241,232,.74);
  transition:color 160ms ease,transform 160ms ease;
}
.qm-footer__link:hover{color:var(--cyan);transform:translateX(3px)}
.qm-footer__legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 20px;
  padding-block:18px 24px;
  border-block-start:1px solid rgba(154,167,180,.18);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--muted);
}
.qm-footer__copy{color:rgba(244,241,232,.7)}
.qm-footer__legal-link{color:rgba(244,241,232,.7);transition:color 160ms ease}
.qm-footer__legal-link:hover{color:var(--cyan)}
.qm-footer__icp{margin-inline-start:auto;color:rgba(154,167,180,.86)}
@media (max-width:900px){
  .qm-footer__grid{grid-template-columns:1fr}
  .qm-footer__brand{max-width:none}
  .qm-footer__icp{margin-inline-start:0}
}
@media (max-width:560px){
  .qm-footer__cols{grid-template-columns:1fr 1fr}
}

/* =========================================================
   动效降级
   ========================================================= */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
}