/* ==========================================================================
   FB赛事 · /assets/site.css
   深空蓝数据面板 × 奶油纸编辑部目录 · 共享外壳与基础组件
   ========================================================================== */

:root{
  --ink:#08122B;
  --ink-deep:#050C1E;
  --panel:#10224A;
  --paper:#F2E8D5;
  --paper-hi:#FFF9EE;
  --cyan:#35F2D0;
  --orange:#FF6B35;
  --violet:#7A5CFF;
  --silver:#B7C2D8;
  --brown:#231A12;
  --ember:#D9482F;

  --font-display:"Arial Black","Helvetica Neue","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:Inter,"PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif;
  --font-mono:"Roboto Mono",SFMono-Regular,Consolas,"Courier New",monospace;

  --shell:min(1180px,calc(100vw - 2.5rem));
  --cut:16px;
  --hair:1px solid rgba(183,194,216,.18);
  --ease:cubic-bezier(.22,.8,.24,1);
  --fast:.22s;
  --slow:.55s;
}

/* ---------- reset ---------- */
*,
*::before,
*::after{box-sizing:border-box}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}

body{
  margin:0;
  background:var(--ink);
  color:var(--paper);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
table{border-collapse:collapse;width:100%}

:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
  border-radius:3px;
}

#main-content{scroll-margin-top:130px}

/* ---------- 排版工具 ---------- */
.display-1{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(2.6rem,7.2vw,5.6rem);
  line-height:.94;
  letter-spacing:-.03em;
}

.display-2{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(1.85rem,4.2vw,3.15rem);
  line-height:1.02;
  letter-spacing:-.02em;
}

.eyebrow{
  font-family:var(--font-mono);
  font-size:.72rem;
  font-weight:600;
  letter-spacing:.28em;
  text-transform:uppercase;
  color:var(--cyan);
}

.index-num{
  font-family:var(--font-mono);
  font-weight:600;
  font-size:clamp(3rem,9vw,7rem);
  line-height:.85;
  letter-spacing:-.05em;
  color:transparent;
  -webkit-text-stroke:1px rgba(183,194,216,.55);
}

.prose{max-width:68ch;font-size:1rem;line-height:1.85}
.prose p + p{margin-top:.9em}

/* ---------- 布局容器 ---------- */
.content-shell{width:var(--shell);margin-inline:auto}

.section{
  width:var(--shell);
  margin-inline:auto;
  padding-block:clamp(2.6rem,6vw,5rem);
}

.paper-panel{
  background:var(--paper);
  color:var(--brown);
  border-radius:var(--cut);
  padding:clamp(1.4rem,3.5vw,3rem);
}
.paper-panel .eyebrow{color:var(--ember)}

.panel{
  background:var(--panel);
  border:var(--hair);
  border-radius:var(--cut);
  padding:clamp(1.1rem,2.4vw,1.75rem);
}

.grid{display:grid;gap:clamp(1rem,2.4vw,1.8rem)}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.grid--4{grid-template-columns:repeat(auto-fit,minmax(178px,1fr))}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  padding:.74rem 1.4rem;
  border-radius:999px;
  font-family:var(--font-body);
  font-size:.9rem;
  font-weight:700;
  letter-spacing:.02em;
  border:1px solid transparent;
  transition:transform var(--fast) var(--ease),box-shadow var(--fast) var(--ease),
             background var(--fast) var(--ease),color var(--fast) var(--ease),
             border-color var(--fast) var(--ease);
}
.btn:hover{transform:translateY(-2px)}

.btn--solid{
  background:var(--orange);
  color:#1A0D06;
  box-shadow:0 12px 26px rgba(255,107,53,.26);
}
.btn--solid:hover{box-shadow:0 16px 32px rgba(255,107,53,.34)}

.btn--ghost{
  background:rgba(53,242,208,.07);
  border-color:rgba(53,242,208,.45);
  color:var(--cyan);
}
.btn--ghost:hover{background:rgba(53,242,208,.16);border-color:var(--cyan)}

.btn--ink{background:var(--ink);color:var(--paper)}
.btn--ink:hover{background:var(--panel)}

/* ---------- 筛选标签 ---------- */
.chip{
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  padding:.42rem .9rem;
  border-radius:999px;
  border:1px solid rgba(183,194,216,.4);
  background:transparent;
  color:var(--silver);
  font-family:var(--font-mono);
  font-size:.74rem;
  letter-spacing:.1em;
  transition:color var(--fast) var(--ease),border-color var(--fast) var(--ease),
             background var(--fast) var(--ease);
}
.chip:hover{color:var(--paper);border-color:var(--cyan)}
.chip[aria-pressed="true"]{
  background:rgba(53,242,208,.14);
  border-color:var(--cyan);
  color:var(--cyan);
}

/* ---------- 关注标记（页面阶段配合 data-watch-item 使用） ---------- */
.watch-mark{
  display:inline-flex;
  align-items:center;
  gap:.35rem;
  padding:.3rem .78rem;
  border-radius:999px;
  border:1px solid rgba(255,107,53,.5);
  color:var(--orange);
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.08em;
  transition:background var(--fast) var(--ease),color var(--fast) var(--ease);
}
.watch-mark:hover{background:rgba(255,107,53,.14)}
.watch-mark[aria-pressed="true"]{
  background:var(--orange);
  border-color:var(--orange);
  color:#1A0D06;
}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.08em;
  color:var(--silver);
}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:.45rem}
.breadcrumb li + li::before{content:"/";margin-right:.45rem;color:rgba(183,194,216,.5)}
.breadcrumb a{color:var(--silver);transition:color var(--fast) var(--ease)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb [aria-current="page"]{color:var(--cyan)}

/* ---------- 图片容器骨架 ---------- */
.media-frame{
  position:relative;
  overflow:hidden;
  border-radius:var(--cut);
  background:linear-gradient(135deg,var(--panel),#0A1A38 70%,#132A55);
  aspect-ratio:16/10;
  isolation:isolate;
}
.media-frame img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:linear-gradient(118deg,transparent 54%,rgba(53,242,208,.12) 72%,rgba(122,92,255,.18) 100%);
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:4/5}
.media-frame--square{aspect-ratio:1/1}

/* ---------- 滚动渐显 ---------- */
[data-reveal]{transition:opacity var(--slow) var(--ease),transform var(--slow) var(--ease)}
.js-reveal [data-reveal]:not([data-revealed]){
  opacity:0;
  transform:translate3d(-18px,14px,0);
}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:fixed;
  left:1rem;
  top:-5rem;
  z-index:300;
  padding:.7rem 1.2rem;
  background:var(--cyan);
  color:var(--ink);
  font-family:var(--font-mono);
  font-size:.78rem;
  font-weight:600;
  letter-spacing:.1em;
  border-radius:0 0 12px 12px;
  transition:top var(--fast) var(--ease);
}
.skip-link:focus{top:0}

/* ==========================================================================
   页头
   ========================================================================== */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:var(--ink);
  box-shadow:0 1px 0 rgba(53,242,208,.16);
}

.header-shell{
  width:var(--shell);
  margin-inline:auto;
}

/* --- 上层信息带 --- */
.header-meta{
  background:var(--ink-deep);
  border-bottom:1px solid rgba(183,194,216,.12);
}
.header-meta__inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:.3rem 1.5rem;
  padding-block:.5rem;
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.08em;
  color:var(--silver);
}
.header-meta__brand{
  color:var(--paper);
  letter-spacing:.2em;
  font-weight:600;
}
.header-meta__status{
  display:flex;
  align-items:center;
  gap:.5rem;
}
.status-dot{
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--cyan);
  animation:pulse 2.8s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 0 rgba(53,242,208,.55)}
  50%{box-shadow:0 0 0 6px rgba(53,242,208,0)}
}

/* --- 下层主栏 --- */
.header-main__inner{
  position:relative;
  display:flex;
  align-items:center;
  gap:1rem;
  min-height:74px;
  padding-block:.6rem;
}

.brand{
  display:flex;
  align-items:center;
  gap:.7rem;
  flex:0 0 auto;
  position:relative;
  z-index:3;
}
.brand__mark{
  display:grid;
  place-items:center;
  width:44px;
  height:44px;
  background:linear-gradient(135deg,var(--cyan),var(--violet) 78%);
  color:var(--ink-deep);
  font-family:var(--font-display);
  font-weight:900;
  font-size:1.02rem;
  letter-spacing:-.05em;
  clip-path:polygon(0 0,100% 0,100% 70%,74% 100%,0 100%);
  transition:transform var(--fast) var(--ease);
}
.brand:hover .brand__mark{transform:translateY(-2px) rotate(-3deg)}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__name{
  font-family:var(--font-display);
  font-weight:900;
  font-size:1.04rem;
  letter-spacing:.02em;
  color:var(--paper);
}
.brand__tag{
  font-family:var(--font-mono);
  font-size:.58rem;
  letter-spacing:.3em;
  color:var(--silver);
}

/* --- 主导航 --- */
.primary-nav{margin-left:auto}
.primary-nav__list{
  display:flex;
  align-items:center;
  gap:.1rem;
}
.primary-nav__link{
  position:relative;
  display:block;
  padding:.55rem .74rem;
  font-size:.9rem;
  font-weight:600;
  color:var(--silver);
  transition:color var(--fast) var(--ease);
}
.primary-nav__link::after{
  content:"";
  position:absolute;
  left:.74rem;
  right:.74rem;
  bottom:.2rem;
  height:2px;
  background:linear-gradient(90deg,var(--cyan),var(--orange));
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--fast) var(--ease);
}
.primary-nav__link:hover,
.primary-nav__link:focus-visible{color:var(--paper)}
.primary-nav__link:hover::after{transform:scaleX(1)}
.primary-nav__link[aria-current="page"]{color:var(--cyan)}
.primary-nav__link[aria-current="page"]::after{
  transform:scaleX(1);
  background:var(--orange);
}

/* --- 工具区 --- */
.header-tools{
  display:flex;
  align-items:center;
  gap:.5rem;
  margin-left:.4rem;
}
.tool-btn{
  display:inline-flex;
  align-items:center;
  gap:.42rem;
  padding:.46rem .82rem;
  border-radius:999px;
  border:1px solid rgba(53,242,208,.34);
  background:rgba(53,242,208,.06);
  color:var(--cyan);
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.08em;
  transition:background var(--fast) var(--ease),border-color var(--fast) var(--ease);
}
.tool-btn:hover{background:rgba(53,242,208,.15);border-color:var(--cyan)}
.tool-btn__count{
  display:inline-grid;
  place-items:center;
  min-width:20px;
  height:20px;
  padding-inline:4px;
  border-radius:999px;
  background:var(--orange);
  color:#1A0D06;
  font-size:.66rem;
  font-weight:700;
}

.nav-toggle{
  position:relative;
  display:none;
  width:44px;
  height:44px;
  border:1px solid rgba(183,194,216,.35);
  border-radius:12px;
  background:rgba(255,249,238,.04);
  transition:border-color var(--fast) var(--ease);
}
.nav-toggle:hover{border-color:var(--cyan)}
.nav-toggle__bar{
  position:absolute;
  left:11px;
  width:22px;
  height:2px;
  border-radius:2px;
  background:var(--paper);
  transition:transform var(--fast) var(--ease),opacity var(--fast) var(--ease),top var(--fast) var(--ease);
}
.nav-toggle__bar:nth-child(1){top:14px}
.nav-toggle__bar:nth-child(2){top:21px}
.nav-toggle__bar:nth-child(3){top:28px}

.site-header[data-open] .nav-toggle__bar:nth-child(1){top:21px;transform:rotate(45deg)}
.site-header[data-open] .nav-toggle__bar:nth-child(2){opacity:0}
.site-header[data-open] .nav-toggle__bar:nth-child(3){top:21px;transform:rotate(-45deg)}

/* --- 关注列表面板 --- */
.watch-panel{
  position:absolute;
  right:0;
  top:calc(100% + .55rem);
  z-index:120;
  width:min(310px,calc(100vw - 3.2rem));
  background:var(--panel);
  border:1px solid rgba(53,242,208,.3);
  border-radius:var(--cut);
  padding:1rem;
  box-shadow:0 26px 54px rgba(3,8,20,.6);
}
.watch-panel[hidden]{display:none}
.watch-panel__head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:.6rem;
  padding-bottom:.6rem;
  border-bottom:1px solid rgba(183,194,216,.16);
}
.watch-panel__title{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.22em;
  color:var(--cyan);
  text-transform:uppercase;
}
.watch-panel__close{
  width:26px;
  height:26px;
  display:grid;
  place-items:center;
  border-radius:8px;
  color:var(--silver);
  font-size:1rem;
  line-height:1;
  transition:color var(--fast) var(--ease),background var(--fast) var(--ease);
}
.watch-panel__close:hover{color:var(--paper);background:rgba(255,249,238,.08)}
.watch-panel__list{display:grid;gap:.4rem;margin-top:.7rem}
.watch-panel__item{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:.6rem;
  padding:.42rem .6rem;
  border-radius:9px;
  background:rgba(255,249,238,.05);
  font-size:.84rem;
}
.watch-panel__name{color:var(--paper);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.watch-panel__remove{
  flex:0 0 auto;
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.06em;
  color:var(--orange);
  transition:color var(--fast) var(--ease);
}
.watch-panel__remove:hover{color:var(--paper)}
.watch-panel__empty{
  margin-top:.7rem;
  font-size:.78rem;
  line-height:1.6;
  color:var(--silver);
}
.watch-panel__empty[hidden]{display:none}

/* --- 滚动进度 --- */
.scroll-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  background:linear-gradient(90deg,var(--cyan),var(--violet) 55%,var(--orange));
  transform:scaleX(0);
  transform-origin:left center;
  pointer-events:none;
}

/* ==========================================================================
   页脚
   ========================================================================== */
.site-footer{
  position:relative;
  margin-top:clamp(3rem,8vw,6rem);
  background:var(--ink);
  color:var(--silver);
}
.site-footer::before{
  content:"";
  position:absolute;
  left:0;
  right:0;
  top:0;
  height:5px;
  background:linear-gradient(90deg,var(--cyan),var(--violet) 48%,var(--orange));
}

.footer-shell{
  width:var(--shell);
  margin-inline:auto;
  padding-block:clamp(2.4rem,5vw,4.2rem) 0;
}

.footer-top{
  display:grid;
  grid-template-columns:1.15fr 1.35fr 1fr;
  gap:clamp(1.8rem,4vw,3.2rem);
}

.footer-brand__mark{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(2.2rem,5.6vw,3.6rem);
  line-height:.92;
  letter-spacing:-.04em;
  color:var(--paper);
}
.footer-brand__tagline{
  margin-top:.7rem;
  max-width:22ch;
  font-size:.94rem;
  line-height:1.7;
  color:var(--silver);
}
.footer-brand__cta{margin-top:1.15rem}

.footer-cols{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:clamp(1.2rem,3vw,2.2rem);
}
.footer-col__title{
  margin-bottom:.9rem;
  font-family:var(--font-mono);
  font-size:.68rem;
  font-weight:600;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--cyan);
}
.footer-col__list{display:grid;gap:.55rem}
.footer-col__list a{
  display:inline-block;
  font-size:.92rem;
  color:var(--silver);
  transition:color var(--fast) var(--ease),transform var(--fast) var(--ease);
}
.footer-col__list a:hover{color:var(--paper);transform:translateX(3px)}
.footer-col__list a[aria-current="page"]{color:var(--cyan)}

.footer-contact p{
  margin-bottom:.55rem;
  font-size:.86rem;
  line-height:1.7;
}
.footer-contact__note{
  margin-top:.7rem;
  padding-top:.7rem;
  border-top:1px solid rgba(183,194,216,.16);
  font-family:var(--font-mono);
  font-size:.72rem;
  line-height:1.65;
  letter-spacing:.02em;
  color:rgba(183,194,216,.8);
}

.footer-legal{
  margin-top:clamp(1.9rem,4vw,3rem);
  padding-block:1.1rem 1.7rem;
  border-top:1px solid rgba(183,194,216,.16);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.5rem 1.4rem;
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.06em;
  color:rgba(183,194,216,.76);
}
.footer-legal__icp{color:rgba(183,194,216,.9)}
.footer-legal__links{
  display:flex;
  flex-wrap:wrap;
  gap:1.1rem;
  margin-left:auto;
}
.footer-legal__links a{transition:color var(--fast) var(--ease)}
.footer-legal__links a:hover{color:var(--cyan)}

/* --- 移动端底部快捷栏 --- */
.quickbar{display:none}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width:1024px){
  .footer-top{grid-template-columns:1fr 1fr}
  .footer-contact{grid-column:1 / -1}
}

@media (max-width:960px){
  :root{--shell:min(1180px,calc(100vw - 2rem))}

  .nav-toggle{display:block}

  .primary-nav{
    position:absolute;
    left:0;
    right:0;
    top:100%;
    margin-left:0;
    background:var(--ink);
    border-bottom:1px solid rgba(53,242,208,.22);
    box-shadow:0 26px 44px rgba(3,8,20,.55);
    display:none;
    padding:.4rem 1rem 1rem;
    z-index:110;
  }
  .site-header[data-open] .primary-nav{display:block}

  .primary-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .primary-nav__link{
    padding:.85rem .2rem;
    font-size:1rem;
    border-bottom:1px solid rgba(183,194,216,.12);
  }
  .primary-nav__link::after{display:none}
  .primary-nav__link[aria-current="page"]{
    padding-left:.9rem;
    border-left:3px solid var(--orange);
  }

  .header-tools{margin-left:auto}
  #main-content{scroll-margin-top:96px}
}

@media (max-width:720px){
  body{padding-bottom:66px}

  .header-meta__inner{font-size:.64rem;letter-spacing:.04em}
  .header-meta__status{width:100%}
  .header-main__inner{min-height:64px}
  .brand__mark{width:38px;height:38px;font-size:.9rem}
  .brand__tag{display:none}
  .tool-btn{padding:.4rem .62rem;font-size:.66rem}

  .footer-top{grid-template-columns:1fr}
  .footer-legal{flex-direction:column;align-items:flex-start}
  .footer-legal__links{margin-left:0}

  .quickbar{
    position:fixed;
    left:0;
    right:0;
    bottom:0;
    z-index:95;
    display:grid;
    grid-template-columns:repeat(4,1fr);
    background:rgba(5,12,30,.97);
    border-top:1px solid rgba(53,242,208,.28);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .quickbar__link{
    display:flex;
    flex-direction:column;
    align-items:center;
    gap:.22rem;
    padding:.62rem .2rem .66rem;
    font-size:.7rem;
    letter-spacing:.06em;
    color:var(--silver);
    transition:color var(--fast) var(--ease);
  }
  .quickbar__link:hover{color:var(--paper)}
  .quickbar__link[aria-current="page"]{color:var(--cyan)}
  .quickbar__dot{
    width:5px;
    height:5px;
    border-radius:50%;
    background:currentColor;
    opacity:.75;
  }
}

@media (max-width:420px){
  :root{--shell:calc(100vw - 1.6rem)}
  .header-meta__brand{letter-spacing:.12em}
}

/* ==========================================================================
   减少动态偏好
   ========================================================================== */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,
  *::before,
  *::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .status-dot{animation:none}
  .js-reveal [data-reveal]:not([data-revealed]){
    opacity:1;
    transform:none;
  }
  .btn:hover,
  .brand:hover .brand__mark,
  .footer-col__list a:hover{transform:none}
}