/* ===================================================================
   IM 赛季资料台 · /assets/site.css
   共享外壳：悬浮胶囊导航 · 记分牌页脚 · 看板通用组件
   =================================================================== */

/* ---------- 1. 设计变量 ---------- */
:root{
  --ink:#0B0D0F;
  --panel:#171B20;
  --panel-2:#1B2128;
  --panel-3:#20272F;
  --line:#343B43;
  --line-hi:#4A555F;
  --mist:#C9D0D6;
  --bone:#F3EFE4;
  --dim:#8A939C;
  --red:#E23A2E;
  --yellow:#F5C542;
  --teal:#1FB6A6;
  --blue:#4C8DFF;
  --moss:#6E7A5A;
  --clay:#A56A4E;

  --font-sans:"Source Han Sans SC","Noto 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;

  --shell:1320px;
  --shell-wide:1440px;
  --gutter:clamp(1rem,3vw,2.5rem);
  --header-offset:clamp(84px,9vw,112px);
  --radius-capsule:999px;
  --radius-card:4px;
  --shadow-hard:6px 6px 0 rgba(0,0,0,.45);
  --shadow-hard-lg:8px 10px 0 rgba(0,0,0,.5);
}

/* ---------- 2. 重置 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-top:var(--header-offset);
  background:var(--ink);
  color:var(--mist);
  font-family:var(--font-sans);
  font-size:1rem;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg,video{display:block;max-width:100%}
a{color:var(--bone);text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,h6,p,figure,blockquote{margin:0}
hr{border:0}
[id]{scroll-margin-top:calc(var(--header-offset) + 16px)}
:focus-visible{outline:2px dashed var(--yellow);outline-offset:3px}
::selection{background:var(--red);color:var(--bone)}

/* ---------- 3. 基础排版 ---------- */
h1,h2,h3,h4{color:var(--bone);line-height:1.2;font-weight:800;letter-spacing:-.01em}
p{color:var(--mist)}
.mono,.stat-value,.eyebrow,.footer-icp,.copy-email{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.display{
  font-family:var(--font-sans);
  font-weight:300;
  font-size:clamp(2.4rem,7vw,5.4rem);
  line-height:.98;
  letter-spacing:-.025em;
  color:var(--bone);
}
.display strong,.display b{font-weight:800;color:var(--red)}
.heading{font-size:clamp(1.35rem,2.6vw,2rem);font-weight:800;line-height:1.22}
.lede{font-size:clamp(1rem,1.5vw,1.14rem);line-height:1.7;color:var(--mist);max-width:62ch}
.prose{max-width:68ch;line-height:1.75}
.prose p + p{margin-top:1em}
.prose h2,.prose h3{margin-top:1.8em;margin-bottom:.6em}
.prose ul{list-style:disc;padding-left:1.2em;margin:.8em 0}
.prose li{margin:.3em 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:.55rem;
  font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--yellow);
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--red)}

/* ---------- 4. 布局工具 ---------- */
.container{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.container--wide{max-width:var(--shell-wide)}
.section{padding-block:clamp(2.5rem,6vw,5rem)}
.section--tight{padding-block:clamp(1.5rem,3vw,2.5rem)}
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:1rem;margin-bottom:clamp(1.2rem,2.5vw,2rem);
  padding-bottom:.9rem;border-bottom:1px solid var(--line);
}
.grid{display:grid;gap:clamp(1rem,2vw,1.5rem)}
.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))}
.divider{height:1px;background:var(--line);border:0;margin-block:clamp(1.5rem,3vw,2.5rem)}
.hatch{
  height:10px;
  background:repeating-linear-gradient(135deg,var(--red) 0 10px,var(--yellow) 10px 20px,var(--ink) 20px 30px);
}
.visually-hidden{
  position:absolute!important;width:1px;height:1px;margin:-1px;padding:0;
  overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0;
}

/* ---------- 5. 头部：悬浮胶囊 ---------- */
.skip-link{
  position:fixed;top:8px;left:12px;z-index:400;
  padding:.6rem 1rem;
  background:var(--yellow);color:var(--ink);
  font-family:var(--font-mono);font-size:.78rem;font-weight:700;letter-spacing:.08em;
  border:2px solid var(--ink);border-radius:2px;
  transform:translateY(-160%);
  transition:transform .18s ease;
}
.skip-link:focus{transform:translateY(0)}

.site-header{
  position:fixed;top:0;left:0;right:0;z-index:200;
  padding:.9rem var(--gutter) 0;
  transition:padding .25s ease;
}
.site-header[data-scrolled="true"]{padding-top:.4rem}

.header-shell{
  position:relative;
  display:flex;align-items:center;gap:.6rem;
  max-width:var(--shell);margin-inline:auto;
  padding:.42rem .5rem .42rem .8rem;
  background:rgba(23,27,32,.9);
  border:1px solid var(--line);
  border-radius:var(--radius-capsule);
  box-shadow:0 12px 32px rgba(0,0,0,.55);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header[data-scrolled="true"] .header-shell{
  background:rgba(11,13,15,.97);
  border-color:var(--line-hi);
  box-shadow:0 8px 24px rgba(0,0,0,.65);
}

.header-progress{
  position:absolute;left:0;right:0;bottom:-1px;height:3px;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--red),var(--yellow) 58%,var(--teal));
  border-radius:0 0 var(--radius-capsule) var(--radius-capsule);
  transition:transform .12s linear;
  pointer-events:none;
}

/* 品牌 */
.brand{
  display:flex;align-items:center;gap:.6rem;
  margin-right:auto;padding:.1rem .2rem;
  flex:0 0 auto;
}
.brand-mark{
  display:grid;place-items:center;
  width:38px;height:38px;
  background:var(--red);color:var(--bone);
  font-family:var(--font-mono);font-weight:700;font-size:.98rem;letter-spacing:-.03em;
  border-radius:10px;
  box-shadow:3px 3px 0 rgba(0,0,0,.6);
  transition:transform .18s ease,box-shadow .18s ease;
}
.brand:hover .brand-mark{transform:translate(-1px,-2px);box-shadow:5px 6px 0 rgba(0,0,0,.65)}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-name{font-size:.95rem;font-weight:800;color:var(--bone);letter-spacing:.02em}
.brand-sub{
  font-family:var(--font-mono);font-size:.6rem;letter-spacing:.2em;
  color:var(--dim);text-transform:uppercase;
}

/* 导航 */
.nav{display:block}
.nav-list{display:flex;align-items:center;gap:.1rem}
.nav-item{display:block}
.nav-link{
  position:relative;display:inline-block;
  padding:.5rem .72rem;
  font-size:.82rem;color:var(--mist);
  border:1px solid transparent;border-radius:var(--radius-capsule);
  white-space:nowrap;
  transition:color .18s ease,background .18s ease,border-color .18s ease;
}
.nav-link:hover{color:var(--bone);background:var(--panel-3);border-color:var(--line-hi)}
.nav-link[aria-current="page"]{
  color:var(--ink);background:var(--bone);font-weight:700;
  box-shadow:inset 0 -3px 0 var(--red);
}
.nav-link[aria-current="page"]:hover{color:var(--ink);background:var(--bone);border-color:transparent}

/* 右侧动作区 */
.header-actions{display:flex;align-items:center;gap:.45rem;flex:0 0 auto}
.btn-quick{
  display:inline-flex;align-items:center;gap:.45rem;
  padding:.5rem .9rem;
  font-size:.8rem;font-weight:800;color:var(--ink);
  background:var(--yellow);
  border:1px solid #C79C24;border-radius:var(--radius-capsule);
  box-shadow:3px 3px 0 rgba(0,0,0,.5);
  white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease;
}
.btn-quick-dot{width:6px;height:6px;border-radius:50%;background:var(--red);flex:0 0 auto}
.btn-quick:hover{transform:translate(-1px,-2px);box-shadow:5px 6px 0 rgba(0,0,0,.55);background:#FFD75E}

/* 移动菜单按钮 */
.nav-toggle{
  display:none;align-items:center;gap:.5rem;
  padding:.45rem .8rem;
  background:var(--panel-3);color:var(--bone);
  border:1px solid var(--line);border-radius:var(--radius-capsule);
  transition:background .18s ease,border-color .18s ease,color .18s ease;
}
.nav-toggle-icon{display:grid;gap:3px;width:16px}
.nav-toggle-bar{display:block;width:16px;height:2px;background:currentColor;transition:transform .2s ease,opacity .2s ease}
.nav-toggle-label{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.14em}
.nav-toggle:hover{border-color:var(--line-hi);background:#26303A}
.site-header[data-open="true"] .nav-toggle{background:var(--red);border-color:var(--red);color:var(--bone)}
.site-header[data-open="true"] .nav-toggle-bar:nth-child(1){transform:translateY(5px) rotate(45deg)}
.site-header[data-open="true"] .nav-toggle-bar:nth-child(2){opacity:0}
.site-header[data-open="true"] .nav-toggle-bar:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* ---------- 6. 页脚：记分牌 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(3rem,8vw,6rem);
  background:var(--ink);
  border-top:1px solid var(--line);
  color:var(--mist);
}
.site-footer::before{
  content:"";display:block;height:10px;
  background:repeating-linear-gradient(135deg,var(--red) 0 10px,var(--yellow) 10px 20px,var(--ink) 20px 30px);
}
.footer-shell{
  max-width:var(--shell);margin-inline:auto;
  padding:clamp(2.2rem,5vw,3.6rem) var(--gutter) 1.6rem;
}
.footer-lead{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:1rem 2rem;
  padding-bottom:1.6rem;margin-bottom:clamp(1.8rem,4vw,2.8rem);
  border-bottom:1px solid var(--line);
}
.footer-brand{display:flex;align-items:center;gap:.75rem}
.footer-mark{
  display:grid;place-items:center;
  width:44px;height:44px;
  background:var(--red);color:var(--bone);
  font-family:var(--font-mono);font-weight:700;font-size:1.05rem;letter-spacing:-.03em;
  border-radius:10px;box-shadow:3px 3px 0 rgba(0,0,0,.6);
  flex:0 0 auto;
}
.footer-name{font-size:1.02rem;font-weight:800;color:var(--bone);letter-spacing:.02em}
.footer-note{
  max-width:52ch;font-size:.86rem;line-height:1.7;color:var(--dim);
}
.footer-top{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:clamp(1.5rem,3vw,2.6rem);
}
.footer-col{min-width:0}
.footer-col-title{
  display:flex;align-items:center;gap:.5rem;
  margin-bottom:.9rem;
  font-family:var(--font-mono);font-size:.72rem;font-weight:700;
  letter-spacing:.18em;text-transform:uppercase;color:var(--bone);
}
.footer-col-title::before{content:"";width:3px;height:12px;background:var(--red);flex:0 0 auto}
.footer-links{display:grid;gap:.55rem}
.footer-links a{
  font-size:.86rem;color:var(--mist);
  border-bottom:1px solid transparent;
  transition:color .18s ease,border-color .18s ease;
  word-break:break-word;
}
.footer-links a:hover,.footer-links a:focus-visible{color:var(--bone);border-bottom-color:var(--red)}
.footer-links--contact{gap:.75rem}
.footer-col--contact .footer-links li{display:block}
.contact-value{display:block;font-size:.84rem;line-height:1.6;color:var(--mist);word-break:break-word}

.copy-email{
  display:inline-flex;align-items:center;gap:.55rem;
  padding:.42rem .6rem;
  background:var(--panel-2);
  border:1px solid var(--line);border-radius:2px;
  font-size:.78rem;color:var(--bone);
  text-align:left;max-width:100%;
  transition:border-color .18s ease,background .18s ease,color .18s ease;
}
.copy-email-text{overflow-wrap:anywhere}
.copy-email-action{
  font-family:var(--font-mono);font-size:.64rem;letter-spacing:.14em;
  color:var(--yellow);border:1px solid var(--yellow);border-radius:2px;
  padding:.1rem .35rem;flex:0 0 auto;
}
.copy-email:hover{border-color:var(--yellow);background:#232A32}
.copy-email.is-copied{border-color:var(--yellow);background:rgba(245,197,66,.14);color:var(--bone)}
.copy-hint{
  margin-top:.4rem;
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.06em;color:var(--dim);
  transition:color .18s ease;
}
.copy-hint.is-active{color:var(--yellow)}

.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:.7rem 1.5rem;
  margin-top:clamp(2rem,4vw,3rem);padding-top:1.2rem;
  border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.06em;color:var(--dim);
}
.footer-copy,.footer-icp{font-size:.72rem;color:var(--dim);letter-spacing:.06em}
.footer-legal{display:flex;flex-wrap:wrap;gap:.4rem 1rem}
.footer-legal a{font-size:.72rem;color:var(--dim);border-bottom:1px solid transparent;transition:color .18s ease,border-color .18s ease}
.footer-legal a:hover,.footer-legal a:focus-visible{color:var(--yellow);border-bottom-color:var(--yellow)}

/* ---------- 7. 通用组件 ---------- */
/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.75rem 1.35rem;
  font-size:.9rem;font-weight:800;letter-spacing:.02em;
  border:2px solid transparent;border-radius:2px;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn--primary{background:var(--red);color:var(--bone);box-shadow:var(--shadow-hard)}
.btn--primary:hover{transform:translate(-2px,-2px);box-shadow:var(--shadow-hard-lg)}
.btn--yellow{background:var(--yellow);color:var(--ink);box-shadow:var(--shadow-hard)}
.btn--yellow:hover{transform:translate(-2px,-2px);box-shadow:var(--shadow-hard-lg)}
.btn--ghost{background:transparent;color:var(--bone);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--bone);background:var(--panel-2)}
.btn--sm{padding:.5rem .9rem;font-size:.78rem}

/* 卡片 */
.card{
  background:var(--panel);
  border:2px solid var(--line);
  border-radius:var(--radius-card);
  padding:clamp(1rem,2vw,1.5rem);
  box-shadow:var(--shadow-hard);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);border-color:var(--line-hi);box-shadow:var(--shadow-hard-lg)}
.card--accent{border-left:8px solid var(--red)}

/* 标签与徽标 */
.chip{
  display:inline-flex;align-items:center;gap:.4rem;
  padding:.4rem .85rem;
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.08em;
  color:var(--mist);background:var(--panel-2);
  border:1px solid var(--line);border-radius:var(--radius-capsule);
  transition:color .18s ease,background .18s ease,border-color .18s ease;
}
.chip:hover{color:var(--bone);border-color:var(--line-hi)}
.chip[aria-pressed="true"],.chip.is-active{
  background:var(--bone);color:var(--ink);border-color:var(--bone);font-weight:700;
}
.badge{
  display:inline-flex;align-items:center;gap:.35rem;
  padding:.22rem .55rem;
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;
  border:1px solid var(--line);border-radius:2px;color:var(--mist);background:var(--panel-2);
}
.badge--red{color:#FFD9D4;background:rgba(226,58,46,.16);border-color:var(--red)}
.badge--yellow{color:#FFEBBC;background:rgba(245,197,66,.14);border-color:var(--yellow)}
.badge--teal{color:#BFF3EC;background:rgba(31,182,166,.14);border-color:var(--teal)}
.badge--neutral{color:var(--dim);background:var(--panel-2);border-color:var(--line)}

/* 统计 */
.stat-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
  gap:1px;background:var(--line);
  border:2px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;
}
.stat{background:var(--panel);padding:1rem 1.1rem}
.stat-value{
  display:block;
  font-size:clamp(1.4rem,3vw,2rem);font-weight:700;line-height:1;color:var(--bone);letter-spacing:-.02em;
}
.stat-value--teal{color:var(--teal)}
.stat-value--yellow{color:var(--yellow)}
.stat-value--red{color:var(--red)}
.stat-label{
  margin-top:.45rem;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.12em;color:var(--dim);
}

/* 面包屑 */
.breadcrumbs{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.06em;color:var(--dim)}
.breadcrumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:.4rem}
.breadcrumbs li{display:flex;align-items:center;gap:.4rem}
.breadcrumbs li + li::before{content:"/";color:var(--line-hi)}
.breadcrumbs a{color:var(--mist);border-bottom:1px solid transparent;transition:color .18s ease,border-color .18s ease}
.breadcrumbs a:hover{color:var(--yellow);border-bottom-color:var(--yellow)}
.breadcrumbs [aria-current="page"]{color:var(--bone)}

/* 图片容器 */
.media{
  position:relative;display:block;width:100%;overflow:hidden;
  background:repeating-linear-gradient(135deg,var(--panel-2) 0 10px,var(--panel) 10px 20px);
  border:2px solid var(--line);
  border-radius:var(--radius-card);
}
.media img{
  width:100%;height:100%;object-fit:cover;
  filter:grayscale(.35) contrast(1.05);
  transition:transform .5s ease,filter .5s ease;
}
.media:hover img{transform:scale(1.03);filter:grayscale(0) contrast(1.08)}
.media--16x9{aspect-ratio:16/9}
.media--4x3{aspect-ratio:4/3}
.media--3x2{aspect-ratio:3/2}
.media--1x1{aspect-ratio:1/1}
.media-caption{
  margin-top:.5rem;
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.08em;color:var(--dim);
}

/* 进场（仅在 JS 可用时隐藏，避免无脚本空白） */
.js [data-reveal]{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.js [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 8. 响应式 ---------- */
@media (max-width:1200px){
  .nav-link{padding:.45rem .55rem;font-size:.78rem}
  .footer-top{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.8rem 2rem}
}

@media (max-width:1024px){
  .site-header{padding-top:.55rem}
  .nav{
    position:absolute;top:calc(100% + .6rem);left:0;right:0;
    display:none;
    padding:.6rem;
    background:rgba(23,27,32,.99);
    border:1px solid var(--line);border-radius:18px;
    box-shadow:0 18px 44px rgba(0,0,0,.72);
    max-height:min(70vh,520px);overflow:auto;
  }
  .site-header[data-open="true"] .nav{display:block;animation:nav-in .18s ease-out}
  .site-header[data-open="true"] .header-shell{border-color:var(--red)}
  .nav-list{flex-direction:column;align-items:stretch;gap:.2rem}
  .nav-item{width:100%}
  .nav-link{
    display:block;padding:.72rem .9rem;
    font-size:.9rem;border-radius:12px;
    border:1px solid transparent;
  }
  .nav-link[aria-current="page"]{box-shadow:inset 3px 0 0 var(--red)}
  .nav-toggle{display:inline-flex}
  .grid--3,.grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@keyframes nav-in{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}

@media (max-width:760px){
  :root{--header-offset:82px}
  .header-shell{padding:.36rem .4rem .36rem .6rem;gap:.4rem}
  .brand-mark{width:34px;height:34px;font-size:.86rem;border-radius:8px}
  .brand-name{font-size:.86rem}
  .brand-sub{display:none}
  .btn-quick{padding:.45rem .7rem;font-size:.74rem}
  .nav-toggle{padding:.4rem .62rem}
  .nav-toggle-label{display:none}
  .grid--2,.grid--3,.grid--4{grid-template-columns:minmax(0,1fr)}
  .footer-top{grid-template-columns:minmax(0,1fr)}
  .footer-lead{align-items:flex-start}
  .footer-bottom{justify-content:flex-start;gap:.5rem 1rem}
  .footer-legal{gap:.4rem .9rem}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:360px){
  .btn-quick{font-size:.7rem;padding:.4rem .55rem}
}

/* ---------- 9. 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;
  }
  .js [data-reveal]{opacity:1;transform:none}
  .card:hover,.btn--primary:hover,.btn--yellow:hover,.btn-quick:hover,.brand:hover .brand-mark{transform:none}
  .media:hover img{transform:none}
}