/* ===== 竞博中心 · site.css ===== */

:root{
  --ink-950:#040A22;
  --ink-900:#070E2E;
  --ink-800:#0E1A47;
  --panel:#17255F;
  --line:#2A3D82;
  --line-soft:rgba(42,61,130,.55);
  --cyan:#31E1D4;
  --teal:#1A8F8A;
  --orange:#FF8B3D;
  --amber:#FFC98A;
  --violet:#3C2A78;
  --wine:#6E1F3C;
  --cream:#F5F2EA;
  --muted:#C3CADC;

  --font-display:"Archivo Narrow","Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular","Roboto Mono",Consolas,Menlo,"Courier New",monospace;

  --fs-display:clamp(40px,6.6vw,72px);
  --fs-h1:clamp(32px,4.4vw,48px);
  --fs-h2:clamp(25px,3.2vw,36px);
  --fs-h3:clamp(20px,2.2vw,28px);
  --fs-lead:clamp(17px,1.35vw,20px);
  --fs-body:17px;
  --fs-small:13px;

  --shadow:0 1px 2px rgba(3,8,30,.6);
  --shell:1280px;
  --gutter:clamp(16px,3.5vw,40px);
  --radius:3px;
}

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

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

body{
  margin:0;
  background:var(--ink-900);
  color:var(--cream);
  font-family:var(--font-body);
  font-size:var(--fs-body);
  line-height:1.75;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

h1,h2,h3,h4,h5,h6{
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.14;
  letter-spacing:-.01em;
  margin:0 0 .55em;
  color:var(--cream);
}
h1{font-size:var(--fs-h1)}
h2{font-size:var(--fs-h2)}
h3{font-size:var(--fs-h3)}
h4{font-size:20px}
h5{font-size:17px}
h6{font-size:var(--fs-small);font-family:var(--font-mono);letter-spacing:.12em}

p{margin:0 0 1em}

img{max-width:100%;height:auto;display:block}

ul,ol{color:inherit}

a{color:var(--cyan)}

::selection{background:rgba(49,225,212,.28);color:var(--cream)}

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

/* ---- 跳转链接 ---- */
.skip-link{
  position:absolute;
  left:14px;
  top:-64px;
  z-index:200;
  padding:10px 18px;
  background:var(--cyan);
  color:#04203A;
  font-size:14px;
  font-weight:700;
  text-decoration:none;
  border-radius:0 0 var(--radius) var(--radius);
  transition:top .18s ease;
}
.skip-link:focus{top:0}

/* ---- 头部 ---- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--ink-900);
  border-bottom:1px solid var(--line);
}

.read-progress{
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:2px;
  background:transparent;
  overflow:hidden;
  pointer-events:none;
}
.read-progress-bar{
  display:block;
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--cyan),var(--orange));
  transition:width .12s linear;
}

.header-shell{
  position:relative;
  max-width:var(--shell);
  margin:0 auto;
  padding:14px var(--gutter);
  display:flex;
  align-items:center;
  gap:clamp(14px,2.4vw,36px);
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  flex:0 0 auto;
  padding:3px 0;
  color:var(--cream);
  text-decoration:none;
}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;height:38px;
  border:1px solid var(--cyan);
  background:rgba(49,225,212,.08);
  color:var(--cyan);
  font-family:var(--font-mono);
  font-size:16px;
  font-weight:700;
  border-radius:var(--radius);
  transition:border-color .18s ease,color .18s ease,background-color .18s ease;
}
.brand:hover .brand-mark{
  border-color:var(--orange);
  color:var(--orange);
  background:rgba(255,139,61,.1);
}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-name{
  font-family:var(--font-display);
  font-weight:800;
  font-size:19px;
  line-height:1.15;
  letter-spacing:.05em;
  color:var(--cream);
}
.brand-tagline{
  font-family:var(--font-mono);
  font-size:11.5px;
  line-height:1.45;
  letter-spacing:.08em;
  color:var(--muted);
}

.nav-toggle{
  display:none;
  margin-left:auto;
  align-items:center;
  gap:9px;
  padding:9px 14px;
  background:transparent;
  border:1px solid var(--line);
  border-radius:var(--radius);
  color:var(--cream);
  font-family:var(--font-body);
  font-size:14px;
  font-weight:600;
  letter-spacing:.08em;
  cursor:pointer;
  transition:border-color .18s ease,color .18s ease;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle-bars{
  display:inline-flex;
  flex-direction:column;
  justify-content:center;
  gap:4px;
  width:16px;
}
.nav-toggle-bars span{
  display:block;
  height:1.5px;
  background:currentColor;
  transition:transform .2s ease;
}
.nav-toggle-text{font-size:13.5px;letter-spacing:.1em}
.site-header[data-open] .nav-toggle-bars span:first-child{transform:translateY(2.75px) rotate(45deg)}
.site-header[data-open] .nav-toggle-bars span:last-child{transform:translateY(-2.75px) rotate(-45deg)}

.primary-nav{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:clamp(10px,1.6vw,24px);
  min-width:0;
}
.nav-list{
  display:flex;
  align-items:center;
  gap:clamp(0px,.35vw,6px);
  list-style:none;
  margin:0;
  padding:0;
}
.nav-list a{
  display:block;
  padding:9px clamp(7px,.85vw,13px) 7px;
  font-size:clamp(13.5px,1.05vw,15px);
  font-weight:500;
  color:var(--muted);
  text-decoration:none;
  white-space:nowrap;
  border-bottom:2px solid transparent;
  border-radius:var(--radius) var(--radius) 0 0;
  transition:color .18s ease,background-color .18s ease,border-color .18s ease;
}
.nav-list a:hover{color:var(--cream);background:rgba(42,61,130,.35)}
.nav-list a[aria-current="page"]{color:var(--cyan);border-bottom-color:var(--cyan)}

.nav-utility{
  display:flex;
  align-items:center;
  gap:clamp(8px,1.1vw,16px);
  list-style:none;
  margin:0;
  padding:0 0 0 clamp(10px,1.6vw,24px);
  border-left:1px solid var(--line);
}
.nav-utility a{
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.04em;
  color:var(--muted);
  text-decoration:none;
  padding:5px 2px;
  border-bottom:1px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.nav-utility a:hover{color:var(--cyan);border-bottom-color:var(--cyan)}
.nav-phone{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.04em;
  color:var(--amber);
  padding:5px 10px;
  border:1px solid rgba(255,201,138,.35);
  background:rgba(255,201,138,.08);
  border-radius:var(--radius);
  white-space:nowrap;
}

/* ---- 主内容默认底 ---- */
#main-content{
  display:block;
  background:var(--ink-800);
}

/* ---- 容器与排版 ---- */
.container{
  width:100%;
  max-width:var(--shell);
  margin:0 auto;
  padding:0 var(--gutter);
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin:0 0 14px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.18em;
  color:var(--cyan);
}
.eyebrow::before{
  content:"";
  width:22px;
  height:1px;
  background:var(--cyan);
}

.lead{
  font-size:var(--fs-lead);
  line-height:1.7;
  color:var(--muted);
  max-width:38em;
}

.prose{
  font-size:var(--fs-body);
  line-height:1.78;
  color:var(--muted);
}
.prose p{max-width:38em;margin:0 0 1.1em}
.prose strong{color:var(--cream);font-weight:700}
.prose a{
  color:var(--cyan);
  text-decoration:none;
  border-bottom:1px solid rgba(49,225,212,.4);
}
.prose a:hover{border-bottom-color:var(--cyan)}
.prose ul,.prose ol{max-width:38em;padding-left:1.3em;margin:0 0 1.1em}
.prose li{margin:0 0 .45em}

.rule{
  border:0;
  border-top:1px solid var(--line);
  margin:clamp(32px,4vw,56px) 0;
}

/* ---- 按钮 ---- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border:1px solid var(--cyan);
  border-radius:var(--radius);
  background:var(--cyan);
  color:#04203A;
  font-family:var(--font-body);
  font-size:15px;
  font-weight:700;
  letter-spacing:.06em;
  text-decoration:none;
  cursor:pointer;
  transition:background-color .18s ease,border-color .18s ease,color .18s ease;
}
.btn:hover{background:var(--teal);border-color:var(--teal);color:#02121A}

.btn--ghost{background:transparent;color:var(--cyan)}
.btn--ghost:hover{background:rgba(49,225,212,.12);border-color:var(--cyan);color:var(--cyan)}

.btn--accent{background:var(--orange);border-color:var(--orange);color:#251000}
.btn--accent:hover{background:var(--amber);border-color:var(--amber);color:#251000}

.btn--block{display:flex;width:100%}

/* ---- 标签 ---- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 11px;
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(42,61,130,.25);
  color:var(--muted);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  white-space:nowrap;
}
.tag--ok{
  border-color:rgba(49,225,212,.45);
  background:rgba(49,225,212,.1);
  color:var(--cyan);
}
.tag--action{
  border-color:rgba(255,139,61,.5);
  background:rgba(255,139,61,.12);
  color:var(--orange);
}

/* ---- 面板 ---- */
.panel{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:clamp(18px,2.6vw,28px);
  box-shadow:var(--shadow);
}
.panel-title{
  margin:0 0 10px;
  font-family:var(--font-display);
  font-size:20px;
  font-weight:800;
  color:var(--cream);
}
.panel p:last-child{margin-bottom:0}

/* ---- 面包屑 ---- */
.breadcrumb{margin:0 0 22px}
.breadcrumb ol{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  list-style:none;
  margin:0;
  padding:0;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.04em;
  color:var(--muted);
}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--line)}
.breadcrumb a{color:var(--muted);text-decoration:none}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb [aria-current="page"]{color:var(--cream)}

/* ---- 网格 ---- */
.grid{display:grid;gap:clamp(16px,2vw,26px)}
.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))}

/* ---- 左侧流程轨道 ---- */
.rail{
  position:sticky;
  top:96px;
  display:flex;
  flex-direction:column;
  gap:2px;
  padding-left:14px;
  border-left:1px solid var(--line);
}
.rail-step{
  display:flex;
  align-items:center;
  gap:10px;
  padding:9px 4px 9px 0;
  background:none;
  border:0;
  color:var(--muted);
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.06em;
  text-align:left;
  cursor:pointer;
  transition:color .18s ease;
}
.rail-step::before{
  content:"";
  flex:0 0 auto;
  width:7px;height:7px;
  border:1px solid var(--line);
  border-radius:50%;
  transition:background-color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.rail-step:hover{color:var(--cream)}
.rail-step.is-active{color:var(--cyan)}
.rail-step.is-active::before{
  background:var(--cyan);
  border-color:var(--cyan);
  box-shadow:0 0 0 3px rgba(49,225,212,.16);
}

/* ---- 图片容器 ---- */
.media{
  position:relative;
  display:block;
  overflow:hidden;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.media img{display:block;width:100%;height:100%;object-fit:cover}
.media--21x9{aspect-ratio:21/9}
.media--16x9{aspect-ratio:16/9}
.media--3x2{aspect-ratio:3/2}
.media--4x3{aspect-ratio:4/3}
.media--1x1{aspect-ratio:1/1}
.media-placeholder{
  display:flex;
  align-items:center;
  justify-content:center;
  width:100%;
  height:100%;
  min-height:120px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  color:rgba(195,202,220,.5);
  background:repeating-linear-gradient(135deg,transparent 0 14px,rgba(42,61,130,.22) 14px 28px);
}
.media-caption{
  display:flex;
  align-items:center;
  gap:10px;
  margin:10px 0 0;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.03em;
  color:var(--muted);
}
.media-caption::before{
  content:"";
  flex:0 0 auto;
  width:14px;
  height:1px;
  background:var(--cyan);
}

/* ---- 显现 ---- */
[data-reveal]{opacity:1;transform:none}
.js [data-reveal]{
  opacity:0;
  transform:translateY(10px);
  transition:opacity .3s ease,transform .3s ease;
}
.js [data-reveal].is-visible{opacity:1;transform:none}

/* ---- 页脚 ---- */
.site-footer{
  background:var(--ink-950);
  border-top:1px solid var(--line);
  color:var(--muted);
  font-size:15px;
}
.footer-top{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,2fr);
  gap:clamp(28px,4.5vw,72px);
  padding:clamp(44px,6vw,76px) 0 clamp(32px,4vw,48px);
}
.footer-brand{min-width:0}
.site-footer .brand-mark{width:34px;height:34px;font-size:15px}
.footer-brand-name{
  margin:14px 0 6px;
  font-family:var(--font-display);
  font-weight:800;
  font-size:22px;
  letter-spacing:.05em;
  color:var(--cream);
}
.footer-brand-sub{
  margin:0 0 12px;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.08em;
  color:var(--cyan);
}
.footer-brand-meta{
  margin:0;
  max-width:30em;
  font-size:13.5px;
  line-height:1.75;
  color:var(--muted);
}
.footer-cols{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(20px,3vw,44px);
}
.footer-col-title{
  margin:0 0 16px;
  font-family:var(--font-mono);
  font-size:11.5px;
  font-weight:500;
  letter-spacing:.16em;
  color:var(--cyan);
}
.footer-links,.footer-list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:10px;
}
.footer-links a{
  color:var(--muted);
  font-size:14.5px;
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.footer-links a:hover{color:var(--cream);border-bottom-color:var(--cyan)}
.footer-contact-item{
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.02em;
  line-height:1.7;
  color:var(--muted);
  word-break:break-word;
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px 28px;
  padding:20px 0 28px;
  border-top:1px solid var(--line-soft);
}
.footer-legal{
  margin:0;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--muted);
}
.footer-legal-links{
  display:flex;
  flex-wrap:wrap;
  gap:8px 20px;
  list-style:none;
  margin:0;
  padding:0;
  font-family:var(--font-mono);
  font-size:12px;
}
.footer-legal-links a{color:var(--muted);text-decoration:none}
.footer-legal-links a:hover{color:var(--cyan)}

/* ---- 响应式 ---- */
@media (max-width:1180px){
  .nav-utility .util-search,
  .nav-utility .util-ticket{display:none}
}

@media (max-width:920px){
  .nav-toggle{display:inline-flex}

  .primary-nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    display:block;
    margin-left:0;
    padding:0 var(--gutter);
    background:var(--ink-800);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    max-height:0;
    overflow:hidden;
    opacity:0;
    visibility:hidden;
    box-shadow:0 18px 30px -20px rgba(3,8,30,.9);
    transition:max-height .3s ease,opacity .2s ease,visibility .2s ease;
  }
  .site-header[data-open] .primary-nav{
    max-height:calc(100vh - 68px);
    overflow-y:auto;
    padding:10px var(--gutter) 20px;
    opacity:1;
    visibility:visible;
  }
  .nav-list{display:block;width:100%}
  .nav-list li{border-bottom:1px solid var(--line-soft)}
  .nav-list a{
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:13px 2px;
    font-size:16px;
    border-bottom:none;
    border-radius:0;
    white-space:normal;
  }
  .nav-list a[aria-current="page"]{color:var(--cyan);border-bottom-color:transparent}
  .nav-list a[aria-current="page"]::after{
    content:"当前";
    font-family:var(--font-mono);
    font-size:11px;
    letter-spacing:.08em;
    padding:1px 8px;
    border:1px solid var(--cyan);
    border-radius:999px;
  }
  .nav-utility{
    display:flex;
    flex-wrap:wrap;
    gap:12px 20px;
    margin-top:16px;
    padding:18px 0 0;
    border-left:0;
    border-top:1px solid var(--line-soft);
  }
  .nav-utility .util-search,
  .nav-utility .util-ticket{display:block}

  .footer-top{grid-template-columns:minmax(0,1fr)}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rail{position:static;top:auto}
}

@media (max-width:900px){
  .grid--3,.grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:620px){
  .grid--2,.grid--3,.grid--4{grid-template-columns:minmax(0,1fr)}
  .brand-tagline{display:none}
}

@media (max-width:480px){
  .footer-cols{grid-template-columns:minmax(0,1fr)}
}

/* ---- 无障碍动效 ---- */
@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}
  .read-progress-bar{transition:none}
}