/* /assets/site.css —— 亿博体育看台 全站共享层 */

/* ===== 变量 ===== */
:root{
  --ink-900:#081814;
  --ink-800:#0F2A23;
  --ink-700:#123026;
  --glass:rgba(18,48,38,.55);
  --glass-strong:rgba(11,32,26,.9);
  --cyan:#3DF0C4;
  --cyan-deep:#1B8C77;
  --orange:#FF7A2F;
  --amber:#F4C05A;
  --chalk:#F1F6F2;
  --gray:#7C8B87;
  --shadow:#040D0B;
  --line:rgba(124,139,135,.24);
  --line-strong:rgba(124,139,135,.42);
  --text-soft:#B9C7C3;
  --text-mid:#AEBDB8;
  --font-display:'Oswald','Barlow Condensed','Noto Sans SC','PingFang SC',sans-serif;
  --font-body:'Inter','Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --font-mono:'JetBrains Mono','Roboto Mono','SFMono-Regular',Consolas,monospace;
  --radius-pill:999px;
  --radius-card:18px;
  --shell:1180px;
  --gutter:clamp(16px,4vw,40px);
}

/* ===== 重置 ===== */
*,*::before,*::after{box-sizing:border-box;}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  background-color:var(--ink-900);
  background-image:
    linear-gradient(rgba(124,139,135,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(124,139,135,.045) 1px,transparent 1px);
  background-size:72px 72px;
  background-attachment:fixed;
}
body{
  margin:0;
  min-height:100%;
  background:transparent;
  color:var(--chalk);
  font-family:var(--font-body);
  font-size:16.5px;
  line-height:1.8;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  margin:0;
  font-family:var(--font-display);
  font-weight:700;
  line-height:1.16;
  letter-spacing:-.01em;
  color:var(--chalk);
}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;}
img,svg,video{display:block;max-width:100%;}
button{font:inherit;color:inherit;}
::selection{background:var(--cyan);color:var(--ink-900);}

/* ===== 无障碍 ===== */
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}
:focus-visible{outline:2px solid var(--orange);outline-offset:3px;border-radius:8px;}
.skip-link{
  position:fixed;left:16px;top:-80px;z-index:200;
  padding:10px 20px;border-radius:var(--radius-pill);
  background:var(--cyan);color:var(--ink-900);font-weight:700;font-size:14px;
  transition:top .2s ease;
}
.skip-link:focus{top:14px;}

/* ===== 布局容器 ===== */
#main-content{display:block;position:relative;z-index:1;}
.container{
  width:min(var(--shell),calc(100% - var(--gutter) * 2));
  margin-inline:auto;
}
.section{padding:clamp(40px,7vw,88px) 0;}
.section--tight{padding:clamp(26px,4vw,48px) 0;}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ===== 排版 ===== */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.22em;
  text-transform:uppercase;color:var(--cyan);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--cyan);}
.section-title{
  font-size:clamp(26px,3.4vw,34px);
  font-weight:700;margin-top:12px;
}
.lede{
  font-size:17px;color:var(--text-soft);
  max-width:68ch;margin-top:16px;
}
.prose{color:#C7D3CF;}
.prose p{margin:0 0 1.1em;max-width:68ch;}
.prose h3{font-size:21px;margin:1.6em 0 .6em;color:var(--chalk);}
.prose ul{list-style:disc;}
.prose ol{list-style:decimal;}
.prose ul,.prose ol{padding-left:1.4em;margin:0 0 1.1em;max-width:68ch;}
.prose li{margin-bottom:.45em;}
.mono{font-family:var(--font-mono);font-size:13.5px;letter-spacing:.02em;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 20px;border-radius:var(--radius-pill);
  font-family:var(--font-body);font-size:14.5px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.btn-primary{
  background:var(--orange);color:#1B0C03;
  box-shadow:0 14px 26px -18px rgba(255,122,47,.95);
}
.btn-primary:hover{background:#FF9155;transform:translateY(-1px);}
.btn-ghost{
  background:rgba(241,246,242,.03);color:var(--chalk);
  border-color:var(--line-strong);
}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);}
.btn-cyan{background:var(--cyan);color:var(--ink-900);}
.btn-cyan:hover{background:#66F5D5;}
.btn-sm{padding:7px 14px;font-size:13px;}

/* ===== 面包屑 ===== */
.breadcrumb{padding:18px 0 0;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12.5px;color:var(--gray);}
.breadcrumb li + li::before{content:"›";color:var(--line-strong);}
.breadcrumb a{color:var(--text-mid);}
.breadcrumb a:hover{color:var(--cyan);}

/* ===== 网格与档案卡 ===== */
.grid{display:grid;gap:18px;}
.grid-2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));}
.card{
  position:relative;padding:22px;
  border-radius:var(--radius-card);
  background:linear-gradient(160deg,rgba(18,48,38,.72),rgba(11,30,24,.92));
  border:1px solid var(--line);
  transition:border-color .2s ease,transform .2s ease;
}
.card:hover{border-color:rgba(61,240,196,.35);transform:translateY(-2px);}
.card-title{font-size:20px;font-weight:600;margin-bottom:8px;}
.card-text{color:var(--text-mid);font-size:15px;line-height:1.75;}
.panel{
  position:relative;overflow:hidden;
  border-radius:var(--radius-card);
  background:var(--ink-800);
  border:1px solid var(--line);
}
.panel-head{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 22px;border-bottom:1px solid var(--line);
  background:rgba(8,24,20,.5);
}

/* ===== 分类标签 ===== */
.tag-list{display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.04em;
  padding:4px 11px;border-radius:var(--radius-pill);
  border:1px solid var(--line);color:var(--text-soft);
  background:rgba(241,246,242,.03);
}
.chip--cyan{color:var(--cyan);border-color:rgba(61,240,196,.4);background:rgba(61,240,196,.08);}
.chip--orange{color:var(--orange);border-color:rgba(255,122,47,.42);background:rgba(255,122,47,.1);}
.chip--amber{color:var(--amber);border-color:rgba(244,192,90,.4);background:rgba(244,192,90,.08);}

/* ===== 数据表 ===== */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
.data-table{
  width:100%;border-collapse:collapse;
  font-family:var(--font-mono);font-size:13.5px;letter-spacing:.01em;
}
.data-table th{
  text-align:left;padding:10px 14px;
  color:var(--cyan);font-weight:500;
  border-bottom:1px solid var(--line-strong);white-space:nowrap;
}
.data-table td{
  padding:11px 14px;color:var(--text-soft);
  border-bottom:1px solid var(--line);
}
.data-table tbody tr{transition:transform .18s ease,background-color .18s ease;}
.data-table tbody tr:hover{transform:translateX(4px);background:rgba(61,240,196,.05);}

/* ===== 媒体容器（供页面阶段放图 / 内联 SVG） ===== */
.media-frame{
  position:relative;overflow:hidden;
  border-radius:var(--radius-card);
  background:linear-gradient(160deg,#123026,#081814);
  border:1px solid var(--line);
}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(8,24,20,.15),rgba(8,24,20,.7));
}
.media-frame img{
  width:100%;height:100%;object-fit:cover;
  filter:saturate(.82) brightness(.78);
}
.media-frame > svg{width:100%;height:100%;}
.media-frame--wide{aspect-ratio:16/9;}
.media-frame--banner{aspect-ratio:21/9;}
.media-frame--square{aspect-ratio:1/1;}
.media-frame--tall{aspect-ratio:3/4;}
.media-frame__label{
  position:absolute;left:14px;bottom:14px;z-index:2;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
  padding:5px 12px;border-radius:var(--radius-pill);
  background:rgba(8,24,20,.7);border:1px solid rgba(61,240,196,.3);color:var(--cyan);
}
.media-caption{
  margin-top:10px;font-family:var(--font-mono);
  font-size:12.5px;color:var(--gray);
}

/* ===== 标签页 ===== */
[data-tabs]{display:block;}
.tablist{
  display:inline-flex;flex-wrap:wrap;gap:6px;max-width:100%;
  padding:6px;border-radius:var(--radius-pill);
  background:rgba(18,48,38,.5);border:1px solid var(--line);
}
.tab{
  appearance:none;border:1px solid transparent;background:transparent;
  color:var(--text-mid);font-family:var(--font-mono);
  font-size:13px;letter-spacing:.06em;
  padding:8px 17px;border-radius:var(--radius-pill);cursor:pointer;
  transition:color .18s ease,background-color .18s ease;
}
.tab:hover{color:var(--chalk);background:rgba(61,240,196,.08);}
.tab[aria-selected="true"]{background:var(--cyan);color:var(--ink-900);font-weight:600;}
[role="tabpanel"]{padding-top:24px;}
[role="tabpanel"][hidden]{display:none;}

/* ===== 显现动效 ===== */
[data-reveal]{
  opacity:0;transform:translate3d(0,14px,0);
  transition:opacity .28s ease,transform .28s cubic-bezier(.2,.7,.3,1);
}
[data-reveal][data-visible]{opacity:1;transform:none;}

/* ===== 头部 ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  padding:calc(14px + env(safe-area-inset-top,0px)) 0 12px;
  transition:padding .28s ease;
}
.site-header::before{
  content:"";position:absolute;inset:0 0 -12px 0;pointer-events:none;
  background:linear-gradient(180deg,rgba(8,24,20,.94),rgba(8,24,20,0));
}
.progress-track{
  position:absolute;top:0;left:0;right:0;height:3px;
  background:rgba(124,139,135,.14);
}
.progress-bar{
  display:block;height:100%;width:100%;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan),var(--amber) 70%,var(--orange));
  transition:transform .12s linear;
}
.header-shell{
  position:relative;z-index:1;
  display:flex;align-items:center;gap:14px;
  width:min(var(--shell),calc(100% - var(--gutter) * 2));
  margin-inline:auto;
  padding:9px 10px 9px 12px;
  border-radius:var(--radius-pill);
  background:var(--glass);
  border:1px solid rgba(61,240,196,.16);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:0 22px 46px -32px var(--shadow),inset 0 1px 0 rgba(241,246,242,.06);
  transition:background-color .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.site-header[data-scrolled]{padding-top:calc(8px + env(safe-area-inset-top,0px));padding-bottom:8px;}
.site-header[data-scrolled] .header-shell{
  background:var(--glass-strong);
  border-color:rgba(61,240,196,.24);
}
.site-header[data-scrolled] .brand-tag{display:none;}

.brand{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;display:grid;place-items:center;flex:0 0 auto;
  font-family:var(--font-mono);font-size:13px;font-weight:700;letter-spacing:.06em;
  color:var(--ink-900);
  background:linear-gradient(140deg,var(--cyan),var(--cyan-deep));
  clip-path:polygon(0 0,100% 0,100% 72%,72% 100%,0 100%);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-family:var(--font-display);font-weight:700;font-size:16px;letter-spacing:.02em;}
.brand-tag{font-family:var(--font-mono);font-size:11px;color:var(--gray);letter-spacing:.02em;}

.site-nav{margin-left:auto;display:flex;align-items:center;}
.nav-list{display:flex;align-items:center;gap:2px;}
.nav-link{
  display:inline-block;padding:8px 13px;border-radius:var(--radius-pill);
  color:var(--text-mid);font-size:14.5px;letter-spacing:.01em;white-space:nowrap;
  transition:color .18s ease,background-color .18s ease;
}
.nav-link:hover{color:var(--chalk);background:rgba(61,240,196,.09);}
.nav-link[aria-current="page"]{
  color:var(--ink-900);background:var(--cyan);font-weight:600;
  box-shadow:0 10px 22px -14px rgba(61,240,196,.9);
}
.nav-foot{display:none;}

.header-actions{display:flex;align-items:center;gap:8px;margin-left:8px;}

.nav-toggle{
  display:none;align-items:center;gap:9px;margin-left:auto;
  padding:8px 15px 8px 13px;border-radius:var(--radius-pill);
  background:rgba(61,240,196,.1);border:1px solid rgba(61,240,196,.3);
  color:var(--chalk);font-family:var(--font-mono);
  font-size:12px;letter-spacing:.1em;cursor:pointer;
}
.nav-toggle-bars{position:relative;display:block;width:16px;height:10px;}
.nav-toggle-bars::before,.nav-toggle-bars::after{
  content:"";position:absolute;left:0;width:16px;height:2px;
  background:var(--cyan);border-radius:2px;
  transition:transform .22s ease,top .22s ease;
}
.nav-toggle-bars::before{top:1px;}
.nav-toggle-bars::after{top:7px;}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before{top:4px;transform:rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after{top:4px;transform:rotate(-45deg);}

/* ===== 页脚 ===== */
.site-footer{
  position:relative;margin-top:clamp(56px,8vw,110px);overflow:hidden;
  background:linear-gradient(180deg,rgba(15,42,35,.94),rgba(8,24,20,1));
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--cyan),rgba(61,240,196,0) 46%,var(--orange));
}
.site-footer::after{
  content:"YIBO";position:absolute;right:-2vw;bottom:-4vw;pointer-events:none;
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(90px,17vw,220px);line-height:1;letter-spacing:-.03em;
  color:rgba(241,246,242,.028);
}
.footer-inner{
  position:relative;z-index:1;
  width:min(var(--shell),calc(100% - var(--gutter) * 2));
  margin-inline:auto;
  padding:clamp(40px,6vw,72px) 0 34px;
}
.footer-top{
  display:grid;grid-template-columns:minmax(260px,1.05fr) minmax(0,1.6fr);
  gap:clamp(28px,5vw,64px);
}
.footer-mark{
  display:inline-block;font-family:var(--font-mono);font-size:12px;
  letter-spacing:.28em;color:var(--cyan);
  border:1px solid rgba(61,240,196,.3);border-radius:var(--radius-pill);
  padding:6px 14px;
}
.footer-brandline{
  font-size:15.5px;color:var(--text-soft);line-height:1.75;
  max-width:34ch;margin:16px 0 18px;
}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tags li{
  font-family:var(--font-mono);font-size:12px;color:var(--gray);
  border:1px solid var(--line);border-radius:var(--radius-pill);padding:4px 11px;
}
.footer-nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.footer-col-title{
  font-family:var(--font-display);font-size:13px;font-weight:600;
  letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);margin:0 0 14px;
}
.footer-list{display:grid;gap:10px;}
.footer-list a{
  display:inline-block;font-size:15px;color:#BFCEC9;
  transition:color .18s ease,transform .18s ease;
}
.footer-list a:hover{color:var(--cyan);transform:translateX(3px);}
.footer-meta{
  margin-top:clamp(28px,5vw,54px);padding-top:24px;
  border-top:1px solid var(--line);
  display:grid;gap:10px;font-size:14px;color:var(--gray);
}
.footer-contactline{color:var(--text-soft);font-family:var(--font-mono);font-size:13px;letter-spacing:.01em;}
.footer-addr{color:var(--text-mid);}
.footer-region{max-width:62ch;color:var(--gray);}
.footer-legal{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 24px;
  margin-top:8px;font-family:var(--font-mono);font-size:12.5px;color:var(--gray);
}
.footer-icp{color:var(--text-mid);}
.footer-domain{color:var(--cyan-deep);}

/* ===== 响应式 ===== */
@media (max-width:1180px){
  .header-actions .btn-ghost{display:none;}
}
@media (max-width:1080px){
  .brand-tag{display:none;}
}
@media (max-width:980px){
  .site-header{padding:calc(10px + env(safe-area-inset-top,0px)) 0 10px;}
  .header-shell{border-radius:22px;}
  .header-actions{display:none;}
  .nav-toggle{display:inline-flex;}
  .site-nav{
    position:fixed;left:12px;right:12px;
    bottom:calc(12px + env(safe-area-inset-bottom,0px));
    z-index:90;display:block;margin:0;padding:14px;
    border-radius:24px;
    background:var(--glass-strong);
    border:1px solid rgba(61,240,196,.22);
    backdrop-filter:blur(18px) saturate(140%);
    -webkit-backdrop-filter:blur(18px) saturate(140%);
    box-shadow:0 -20px 54px -34px var(--shadow);
    opacity:0;visibility:hidden;transform:translateY(14px);
    transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
  }
  .site-nav[data-open]{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-list{flex-direction:column;align-items:stretch;gap:4px;}
  .nav-link{display:block;padding:12px 15px;font-size:16px;border-radius:14px;}
  .nav-foot{
    display:grid;gap:8px;margin-top:12px;padding-top:12px;
    border-top:1px solid var(--line);
  }
  .nav-foot .btn{width:100%;padding:12px 18px;}
  .footer-top{grid-template-columns:1fr;}
  .footer-nav{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:640px){
  body{font-size:16px;}
  .brand-mark{width:32px;height:32px;font-size:12px;}
  .brand-name{font-size:15px;}
  .footer-nav{grid-template-columns:1fr;gap:26px;}
  .footer-legal{flex-direction:column;align-items:flex-start;gap:6px;}
  .tablist{width:100%;}
  .tab{flex:1 1 auto;text-align:center;}
}

/* ===== 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;
  }
  [data-reveal]{opacity:1 !important;transform:none !important;}
}