/* =========================================================
   金多宝赛事 · 共享站点样式 /assets/site.css
   ========================================================= */

/* ---------- 1. 设计变量 ---------- */
:root{
  --ink-950:#041018;
  --ink-900:#07111F;
  --ink-800:#0C1B2C;
  --ink-700:#11263A;
  --line:#24445F;
  --line-soft:rgba(36,68,95,.55);
  --paper:#EAF2FA;
  --paper-dim:#A9BCCD;
  --cyan:#35E0D0;
  --orange:#FF7A45;
  --gold:#E6B45C;

  --font-display:'HarmonyOS Sans SC','Noto Sans SC',system-ui,-apple-system,sans-serif;
  --font-body:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --font-mono:'JetBrains Mono','IBM Plex Mono','SFMono-Regular',Consolas,monospace;

  --shell:1440px;
  --gutter:clamp(18px,4vw,64px);
  --header-h:74px;
  --radius:2px;
  --dur:.24s;
  --shadow-panel:0 20px 44px -30px rgba(0,0,0,.95);
}

@media (max-width:480px){
  :root{--header-h:64px;}
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{margin:0;}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img,svg,video,canvas{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer;}
::selection{background:var(--cyan);color:#041018;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:2px;}

/* ---------- 3. 基础排版 ---------- */
body{
  background-color:var(--ink-900);
  background-image:
    radial-gradient(920px 520px at 84% -10%, rgba(53,224,208,.10), transparent 62%),
    radial-gradient(760px 480px at 4% 2%, rgba(230,180,92,.07), transparent 60%),
    linear-gradient(180deg,#08131F 0%,#07111F 40%,#061019 100%);
  background-attachment:fixed;
  color:var(--paper);
  font-family:var(--font-body);
  font-size:16px;
  font-weight:400;
  line-height:1.85;
  min-height:100vh;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

h1,h2,h3,h4,h5,h6{
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.12;
  letter-spacing:-.02em;
  color:var(--paper);
}
h1{font-size:clamp(34px,5.6vw,72px);}
h2{font-size:clamp(24px,3.2vw,40px);}
h3{font-size:clamp(19px,2.2vw,24px);}
p{color:var(--paper-dim);}
strong{color:var(--paper);font-weight:600;}

/* ---------- 4. 布局工具 ---------- */
.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

.section{
  position:relative;
  padding-block:clamp(44px,6.5vw,92px);
}

.grid{
  display:grid;
  gap:clamp(16px,2.2vw,28px);
  grid-template-columns:repeat(3,minmax(0,1fr));
}
.grid--split{grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);}
.grid--asym{grid-template-columns:repeat(12,minmax(0,1fr));}
.grid--tight{gap:clamp(10px,1.4vw,16px);}

.rule{height:1px;border:0;margin:0;background:linear-gradient(90deg,var(--line),transparent);}

/* ---------- 5. 跳转链接 ---------- */
.skip-link{
  position:fixed;
  top:10px;
  left:10px;
  z-index:200;
  padding:10px 18px;
  background:var(--cyan);
  color:#041018;
  font-size:14px;
  font-weight:700;
  border-radius:var(--radius);
  transform:translateY(-180%);
  transition:transform var(--dur) ease;
}
.skip-link:focus,
.skip-link:focus-visible{transform:translateY(0);}

/* ---------- 6. 头部 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  background:rgba(5,17,27,.9);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft);
}

.site-header__progress{
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:rgba(36,68,95,.45);
  pointer-events:none;
  overflow:hidden;
}
.site-header__progress-bar{
  display:block;
  width:100%;
  height:100%;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan) 0%,var(--gold) 58%,var(--orange) 100%);
  transition:transform .08s linear;
}

.site-header__inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:clamp(14px,2vw,28px);
  height:var(--header-h);
}

/* 品牌署名 */
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
  padding-block:6px;
  color:var(--paper);
}
.brand__mark{
  display:flex;
  align-items:flex-end;
  gap:3px;
  width:15px;
  height:24px;
  flex:0 0 auto;
}
.brand__mark i{
  display:block;
  width:3px;
  border-radius:1px;
  background:var(--cyan);
  opacity:.55;
}
.brand__mark i:nth-child(1){height:9px;}
.brand__mark i:nth-child(2){height:16px;opacity:1;}
.brand__mark i:nth-child(3){height:23px;background:var(--gold);opacity:1;}
.brand__text{
  display:flex;
  flex-direction:column;
  line-height:1.15;
  min-width:0;
}
.brand__name{
  position:relative;
  font-family:var(--font-display);
  font-weight:800;
  font-size:19px;
  letter-spacing:.05em;
  padding-bottom:5px;
}
.brand__name::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:28px;height:2px;
  background:linear-gradient(90deg,var(--gold),rgba(230,180,92,0));
  transition:width var(--dur) ease;
}
.brand:hover .brand__name::after{width:100%;}
.brand__note{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--paper-dim);
}

/* 导航区 */
.nav-wrap{
  display:flex;
  align-items:center;
  gap:clamp(14px,2.2vw,36px);
  min-width:0;
}
.site-nav{min-width:0;}
.site-nav__list{
  display:flex;
  align-items:center;
  gap:clamp(0px,1.2vw,18px);
}
.site-nav__link{
  position:relative;
  display:inline-block;
  padding:8px 10px;
  font-size:14.5px;
  font-weight:500;
  letter-spacing:.04em;
  color:var(--paper-dim);
  white-space:nowrap;
  border-radius:var(--radius);
  transition:color var(--dur) ease,background-color var(--dur) ease;
}
.site-nav__link::after{
  content:"";
  position:absolute;
  left:10px;right:10px;bottom:2px;
  height:2px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:0 50%;
  transition:transform var(--dur) ease;
}
.site-nav__link:hover{color:var(--paper);}
.site-nav__link:hover::after{transform:scaleX(1);}
.site-nav__link[aria-current="page"]{
  color:var(--paper);
  font-weight:600;
}
.site-nav__link[aria-current="page"]::after{
  transform:scaleX(1);
  box-shadow:0 0 12px rgba(53,224,208,.65);
}

/* 状态灯 */
.status-chip{
  display:inline-flex;
  align-items:center;
  gap:9px;
  flex:0 0 auto;
  padding:8px 14px;
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(17,38,58,.72);
  color:var(--paper-dim);
  transition:border-color var(--dur) ease,color var(--dur) ease,background-color var(--dur) ease;
}
.status-chip:hover{
  border-color:var(--orange);
  color:var(--paper);
  background:rgba(255,122,69,.12);
}
.status-chip__dot{
  width:7px;height:7px;
  border-radius:50%;
  background:var(--orange);
  box-shadow:0 0 0 0 rgba(255,122,69,.6);
  animation:status-pulse 2.6s ease-out infinite;
}
.status-chip__label{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.1em;
  white-space:nowrap;
}
@keyframes status-pulse{
  0%{box-shadow:0 0 0 0 rgba(255,122,69,.55);}
  70%{box-shadow:0 0 0 9px rgba(255,122,69,0);}
  100%{box-shadow:0 0 0 0 rgba(255,122,69,0);}
}

/* 移动导航按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  flex:0 0 auto;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:rgba(17,38,58,.65);
  color:var(--paper);
  transition:border-color var(--dur) ease,background-color var(--dur) ease;
}
.nav-toggle:hover{border-color:var(--cyan);background:rgba(17,38,58,.95);}
.nav-toggle__bars{
  position:relative;
  display:block;
  width:18px;height:12px;
}
.nav-toggle__bars span{
  position:absolute;left:0;
  width:100%;height:2px;
  border-radius:2px;
  background:currentColor;
  transition:transform var(--dur) ease,opacity var(--dur) ease,top var(--dur) ease;
}
.nav-toggle__bars span:nth-child(1){top:0;}
.nav-toggle__bars span:nth-child(2){top:5px;}
.nav-toggle__bars span:nth-child(3){top:10px;}
.site-header[data-open] .nav-toggle__bars span:nth-child(1){top:5px;transform:rotate(45deg);}
.site-header[data-open] .nav-toggle__bars span:nth-child(2){opacity:0;}
.site-header[data-open] .nav-toggle__bars span:nth-child(3){top:5px;transform:rotate(-45deg);}

/* ---------- 7. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(56px,8vw,128px);
  background:var(--ink-950);
  border-top:1px solid var(--line);
  color:var(--paper-dim);
  font-size:14px;
}
.site-footer::before{
  content:"";
  position:absolute;
  left:0;right:0;top:-1px;
  height:2px;
  background:linear-gradient(90deg,var(--cyan),rgba(53,224,208,0) 34%,rgba(255,122,69,0) 66%,var(--orange));
}
.site-footer__grid{
  display:grid;
  grid-template-columns:minmax(250px,1.5fr) minmax(140px,.8fr) minmax(140px,.8fr) minmax(230px,1.2fr);
  gap:clamp(26px,3.6vw,60px);
  padding-block:clamp(40px,5.5vw,76px);
  align-items:start;
}
.site-footer__brand{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:14px;
}
.site-footer__note{
  font-size:12.5px;
  line-height:1.8;
  color:rgba(169,188,205,.8);
  max-width:34ch;
  margin-top:2px;
}
.guide-chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 16px;
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(17,38,58,.6);
  color:var(--paper);
  font-size:13px;
  font-weight:600;
  letter-spacing:.04em;
  transition:border-color var(--dur) ease,color var(--dur) ease,background-color var(--dur) ease;
}
.guide-chip::before{
  content:"";
  width:6px;height:6px;
  border-radius:50%;
  background:var(--gold);
}
.guide-chip:hover{
  border-color:var(--gold);
  color:var(--gold);
  background:rgba(230,180,92,.1);
}
.site-footer__title{
  font-family:var(--font-mono);
  font-weight:600;
  font-size:12px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--paper);
  margin-bottom:16px;
}
.site-footer__title::before{
  content:"";
  display:inline-block;
  width:14px;height:2px;
  margin-right:8px;
  vertical-align:middle;
  background:var(--gold);
}
.site-footer__col ul{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.site-footer__link{
  display:inline-block;
  padding:2px 0;
  color:var(--paper-dim);
  font-size:14px;
  border-bottom:1px solid transparent;
  transition:color var(--dur) ease,border-color var(--dur) ease;
}
.site-footer__link:hover{color:var(--cyan);border-bottom-color:var(--cyan);}
.site-footer__contact ul{
  display:flex;
  flex-direction:column;
  gap:12px;
  margin-bottom:14px;
}
.contact-line{
  display:flex;
  align-items:baseline;
  gap:10px;
  font-size:13.5px;
  line-height:1.6;
}
.contact-line__key{
  flex:0 0 auto;
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--cyan);
  opacity:.85;
}
.contact-line__val{
  color:var(--paper);
  word-break:break-word;
}
.site-footer__bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-block:20px;
  border-top:1px solid var(--line-soft);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:rgba(169,188,205,.8);
}
.site-footer__copy{color:rgba(169,188,205,.85);}
.site-footer__icp{color:var(--paper-dim);}

/* ---------- 8. 通用组件 ---------- */
.crumbs{
  padding-top:18px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--paper-dim);
}
.crumbs ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
}
.crumbs li{display:flex;align-items:center;gap:8px;}
.crumbs li:not(:last-child)::after{content:"/";color:var(--line);}
.crumbs a{color:var(--paper-dim);transition:color var(--dur) ease;}
.crumbs a:hover{color:var(--cyan);}
.crumbs [aria-current="page"]{color:var(--paper);}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--cyan);
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:24px;height:1px;
  background:var(--cyan);
}
.chapter-num,
.section-index{
  font-family:var(--font-mono);
  font-weight:700;
  letter-spacing:-.02em;
  color:var(--paper-dim);
  transition:color .3s ease;
}
.num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
}

.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:13px 22px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--ink-700);
  color:var(--paper);
  font-size:15px;
  font-weight:600;
  letter-spacing:.03em;
  transition:border-color var(--dur) ease,color var(--dur) ease,background-color var(--dur) ease,transform var(--dur) ease;
}
.btn:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-1px);}
.btn--signal{
  background:var(--orange);
  border-color:var(--orange);
  color:#150800;
}
.btn--signal:hover{
  background:#ff8f61;
  border-color:#ff8f61;
  color:#150800;
}
.btn--ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--paper-dim);
}
.btn--ghost:hover{color:var(--cyan);border-color:var(--cyan);}
.btn--quiet{
  background:transparent;
  border-color:transparent;
  color:var(--cyan);
  padding-inline:2px;
}
.btn--quiet:hover{color:var(--gold);}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:rgba(17,38,58,.65);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--paper-dim);
}
.tag--cyan{color:var(--cyan);border-color:rgba(53,224,208,.45);background:rgba(53,224,208,.1);}
.tag--orange{color:var(--orange);border-color:rgba(255,122,69,.45);background:rgba(255,122,69,.1);}
.tag--gold{color:var(--gold);border-color:rgba(230,180,92,.45);background:rgba(230,180,92,.1);}

.panel{
  position:relative;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(17,38,58,.92),rgba(12,27,44,.96));
  box-shadow:var(--shadow-panel);
  overflow:hidden;
}
.panel::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(53,224,208,.55),transparent);
  pointer-events:none;
}
.panel--flat{
  background:var(--ink-800);
  box-shadow:none;
}
.panel__body{padding:clamp(18px,2.6vw,32px);}

.metric{
  display:flex;
  flex-direction:column;
  gap:4px;
}
.metric__value{
  font-family:var(--font-mono);
  font-weight:700;
  font-size:clamp(26px,3.2vw,38px);
  line-height:1;
  letter-spacing:-.03em;
  color:var(--cyan);
}
.metric__label{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--paper-dim);
}

.content{max-width:72ch;}
.content > * + *{margin-top:1.05em;}
.content h2{font-size:clamp(22px,2.6vw,30px);margin-top:1.6em;}
.content h3{font-size:clamp(18px,2vw,22px);margin-top:1.4em;}
.content p{font-size:16.5px;}
.content ul,
.content ol{display:flex;flex-direction:column;gap:.5em;}
.content ul li{position:relative;padding-left:20px;color:var(--paper-dim);}
.content ul li::before{
  content:"";
  position:absolute;
  left:0;top:.78em;
  width:8px;height:1px;
  background:var(--cyan);
}
.content a{
  color:var(--cyan);
  border-bottom:1px solid rgba(53,224,208,.35);
  transition:color var(--dur) ease,border-color var(--dur) ease;
}
.content a:hover{color:var(--gold);border-bottom-color:var(--gold);}

/* 图片容器基础规则（页面阶段放置占位或图片） */
.media{
  position:relative;
  display:block;
  overflow:hidden;
  isolation:isolate;
  aspect-ratio:16 / 9;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:
    linear-gradient(140deg,rgba(17,38,58,.95),rgba(4,16,24,.98)),
    var(--ink-800);
}
.media img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.media::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  opacity:.5;
  mix-blend-mode:screen;
  background-image:repeating-linear-gradient(180deg,rgba(234,242,250,.05) 0 1px,transparent 1px 4px);
}
.media--wide{aspect-ratio:21 / 9;}
.media--tall{aspect-ratio:3 / 4;}
.media--square{aspect-ratio:1 / 1;}
.media__caption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:14px 16px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.1em;
  color:var(--paper);
  background:linear-gradient(180deg,transparent,rgba(4,16,24,.94));
}

/* 滚动协议 */
[data-section]{
  scroll-margin-top:calc(var(--header-h) + 24px);
}
[data-section].is-current .chapter-num,
[data-section].is-current .section-index{
  color:var(--cyan);
}
[data-reveal]{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .55s ease,transform .55s ease;
}
[data-reveal].is-in{
  opacity:1;
  transform:none;
}

/* ---------- 9. 响应式 ---------- */
@media (max-width:1200px){
  .site-footer__grid{
    grid-template-columns:minmax(220px,1.4fr) minmax(130px,.8fr) minmax(130px,.8fr) minmax(200px,1.1fr);
    gap:clamp(22px,3vw,40px);
  }
}

@media (max-width:1023px){
  .nav-toggle{display:inline-flex;}

  .nav-wrap{
    position:absolute;
    left:0;right:0;top:100%;
    flex-direction:column;
    align-items:stretch;
    gap:14px;
    padding:10px var(--gutter) 26px;
    background:rgba(7,17,31,.98);
    border-bottom:1px solid var(--line);
    box-shadow:0 30px 56px -34px #000;
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity var(--dur) ease,transform var(--dur) ease,visibility var(--dur) ease;
  }
  .site-header[data-open] .nav-wrap{
    opacity:1;
    visibility:visible;
    transform:none;
  }

  .site-nav{width:100%;}
  .site-nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
  }
  .site-nav__link{
    display:block;
    padding:14px 4px;
    font-size:16px;
    border-bottom:1px solid var(--line-soft);
  }
  .site-nav__link::after{
    left:4px;right:auto;bottom:8px;
    width:22px;
  }
  .site-nav__link[aria-current="page"]::after{width:22px;}
  .status-chip{align-self:flex-start;}

  .grid,
  .grid--split{grid-template-columns:repeat(2,minmax(0,1fr));}
  .grid--asym{grid-template-columns:repeat(6,minmax(0,1fr));}

  .site-footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}

@media (max-width:720px){
  body{background-attachment:scroll;}
  .grid,
  .grid--split{grid-template-columns:minmax(0,1fr);}
  .grid--asym{grid-template-columns:repeat(2,minmax(0,1fr));}
  .content{max-width:none;}
}

@media (max-width:640px){
  .site-footer__grid{
    grid-template-columns:minmax(0,1fr);
    gap:30px;
  }
  .site-footer__bottom{
    flex-direction:column;
    align-items:flex-start;
    gap:8px;
  }
  .brand__note{letter-spacing:.1em;}
  .content p{font-size:16px;}
}

/* ---------- 10. 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;
    scroll-behavior:auto !important;
  }
  [data-reveal]{
    opacity:1;
    transform:none;
  }
  .status-chip__dot{animation:none;}
}