/* ==========================================================================
   云开主站 · 共享 Site Kit
   夜墨底 / 战术网格 / 信号青高亮 / 橙色动作 / 等宽数字
   ========================================================================== */

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,blockquote,dl,dd{margin:0;padding:0}
ul,ol{list-style:none}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
input,textarea,select{font:inherit;color:inherit}

:root{
  --ink-900:#050912;
  --ink-800:#0A1122;
  --ink-700:#121C33;
  --line-500:#1E2A44;
  --paper-100:#E9F0FB;
  --haze-400:#94A5C0;
  --sig-400:#2BF5C0;
  --sig-700:#0E7F68;
  --act-400:#FF8A3D;
  --violet-500:#7C6BFF;
  --cream-050:#F3EFE6;

  --font-display:"Barlow Condensed","Oswald","Arial Narrow","Noto Sans SC","PingFang SC",system-ui,sans-serif;
  --font-body:system-ui,-apple-system,"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular","JetBrains Mono","Roboto Mono",Consolas,"Liberation Mono",monospace;

  --header-h:132px;
  --maxw:1320px;
  --edge:clamp(16px,3vw,32px);
  --ease:cubic-bezier(.22,.61,.36,1);
}

@media (max-width:1023px){
  :root{--header-h:112px}
}
@media (max-width:560px){
  :root{--header-h:104px}
}

body{
  min-height:100vh;
  padding-top:var(--header-h);
  background-color:var(--ink-900);
  background-image:
    radial-gradient(1200px 620px at 82% -12%, rgba(43,245,192,.10), transparent 62%),
    radial-gradient(900px 540px at 4% 6%, rgba(124,107,255,.10), transparent 64%),
    repeating-linear-gradient(115deg, rgba(30,42,68,.55) 0 1px, transparent 1px 124px),
    repeating-linear-gradient(25deg, rgba(30,42,68,.32) 0 1px, transparent 1px 168px);
  background-attachment:fixed,fixed,fixed,fixed;
  color:var(--paper-100);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

main{position:relative;z-index:1}

p{max-width:38em}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;line-height:1.02;letter-spacing:.01em}

::selection{background:var(--sig-400);color:var(--ink-900)}

:focus-visible{outline:2px solid var(--sig-400);outline-offset:3px;border-radius:6px}

/* ---------- 通用容器与网格 ---------- */
.container{
  width:100%;
  max-width:var(--maxw);
  margin-inline:auto;
  padding-inline:var(--edge);
}

.grid{display:grid;gap:clamp(16px,2.4vw,28px);grid-template-columns:minmax(0,1fr)}
.grid--2,.grid--3{display:grid;gap:clamp(16px,2.4vw,28px);grid-template-columns:minmax(0,1fr)}
@media (min-width:768px){
  .grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
}

/* ---------- 区块标题组 ---------- */
.section-head{display:flex;flex-direction:column;gap:10px;margin-bottom:clamp(20px,3vw,36px)}
.section-label{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--sig-400);
}
.section-label::before{content:"";width:22px;height:2px;background:var(--sig-400);flex:0 0 auto}
.section-title{
  font-size:clamp(1.9rem,4.4vw,3.2rem);
  line-height:.98;
  color:var(--paper-100);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:999px;border:1px solid transparent;
  font-size:14px;font-weight:700;line-height:1;letter-spacing:.02em;white-space:nowrap;
  transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease),
             border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-accent{background:var(--act-400);color:#120612;box-shadow:0 10px 26px rgba(255,138,61,.26)}
.btn-accent:hover{background:#FFA067;transform:translateY(-1px);box-shadow:0 14px 30px rgba(255,138,61,.34)}
.btn-accent:active{transform:translateY(0)}
.btn-ghost{border-color:rgba(43,245,192,.45);color:var(--sig-400);background:rgba(43,245,192,.07)}
.btn-ghost:hover{background:rgba(43,245,192,.16);border-color:var(--sig-400)}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;border:1px solid var(--line-500);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--haze-400);white-space:nowrap;
}
.tag--signal{border-color:rgba(43,245,192,.5);color:var(--sig-400);background:rgba(43,245,192,.08)}
.tag--action{border-color:rgba(255,138,61,.5);color:var(--act-400);background:rgba(255,138,61,.08)}

/* ---------- 卡片与数据 ---------- */
.card{
  position:relative;
  background:var(--ink-800);
  border:1px solid var(--line-500);
  border-left:3px solid var(--sig-700);
  border-radius:2px;
  padding:clamp(16px,2.4vw,26px);
  transition:border-color .18s var(--ease),transform .18s var(--ease),background .18s var(--ease);
}
.card:hover{border-left-color:var(--sig-400);background:var(--ink-700);transform:translateY(-2px)}
.card-index{
  display:block;margin-bottom:12px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--sig-400);
}
.stat{display:flex;flex-direction:column;gap:4px}
.stat-value{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:clamp(1.6rem,3.4vw,2.4rem);font-weight:700;line-height:1;
  color:var(--sig-400);
}
.stat-label{font-size:12px;letter-spacing:.1em;color:var(--haze-400)}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--haze-400);
}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--line-500)}
.breadcrumb a{color:var(--haze-400);transition:color .18s var(--ease)}
.breadcrumb a:hover{color:var(--sig-400)}
.breadcrumb [aria-current="page"]{color:var(--paper-100)}

/* ---------- 图片容器基础规则 ---------- */
.media-frame{
  position:relative;overflow:hidden;isolation:isolate;
  aspect-ratio:16/10;
  border:1px solid var(--line-500);border-radius:2px;
  background:
    linear-gradient(150deg,var(--ink-700),var(--ink-900)),
    repeating-linear-gradient(115deg, rgba(43,245,192,.14) 0 1px, transparent 1px 26px);
}
.media-frame img{width:100%;height:100%;object-fit:cover;filter:saturate(.92) contrast(1.06)}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,transparent 52%,rgba(5,9,18,.72) 100%);
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}

/* ---------- 显现与计数 ---------- */
[data-reveal]{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
[data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 全局运行时 ---------- */
.scroll-progress{
  position:fixed;top:0;left:0;z-index:100;height:2px;width:0;
  background:linear-gradient(90deg,var(--sig-400),var(--act-400));
  box-shadow:0 0 12px rgba(43,245,192,.55);
  pointer-events:none;
}
.to-top{
  position:fixed;right:clamp(14px,2vw,28px);bottom:clamp(16px,3vw,28px);z-index:70;
  display:inline-flex;align-items:center;gap:9px;
  padding:10px 16px;border-radius:999px;
  border:1px solid var(--line-500);background:rgba(10,17,34,.94);
  color:var(--paper-100);font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;
  opacity:0;transform:translateY(10px);pointer-events:none;
  transition:opacity .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
  backdrop-filter:blur(10px);
}
.to-top.is-visible{opacity:1;transform:none;pointer-events:auto}
.to-top:hover{border-color:var(--sig-400);color:var(--sig-400)}
.to-top-ring{
  position:relative;display:block;width:16px;height:16px;border-radius:50%;
  background:conic-gradient(var(--sig-400) var(--p,0deg), rgba(30,42,68,1) 0);
}
.to-top-ring::after{content:"";position:absolute;inset:3px;border-radius:50%;background:var(--ink-800)}

/* ==========================================================================
   头部
   ========================================================================== */
.skip-link{
  position:fixed;top:10px;left:10px;z-index:200;
  padding:10px 18px;border-radius:999px;
  background:var(--sig-400);color:#04120E;
  font-weight:700;font-size:14px;
  transform:translateY(-180%);
  transition:transform .2s var(--ease);
}
.skip-link:focus-visible{transform:translateY(0);outline-offset:2px}

.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  padding:14px var(--edge) 0;
  transition:padding .25s var(--ease);
}
.header-inner{
  width:100%;max-width:var(--maxw);margin-inline:auto;
  display:flex;flex-direction:column;gap:8px;
}
.header-rail{
  position:relative;
  display:flex;align-items:center;gap:14px;
  min-height:64px;padding:8px 10px 8px 14px;
  border-radius:999px;
  border:1px solid rgba(30,42,68,.95);
  background:rgba(10,17,34,.84);
  backdrop-filter:blur(16px);
  box-shadow:0 18px 44px rgba(2,5,12,.6);
  transition:min-height .25s var(--ease),background .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.is-condensed{padding-top:8px}
.site-header.is-condensed .header-rail{
  min-height:54px;
  background:rgba(10,17,34,.94);
  box-shadow:0 14px 34px rgba(2,5,12,.78);
}

/* 品牌 */
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;border-radius:999px}
.brand-mark{
  position:relative;flex:0 0 auto;
  width:34px;height:34px;border-radius:10px;
  border:1px solid var(--line-500);
  background:linear-gradient(155deg,rgba(43,245,192,.18),rgba(5,9,18,.2) 62%);
}
.brand-mark > span{position:absolute;display:block;border-radius:2px}
.brand-mark > span:nth-child(1){left:9px;top:8px;width:3px;height:18px;background:var(--sig-400)}
.brand-mark > span:nth-child(2){left:12px;top:9px;width:11px;height:3px;background:var(--paper-100);transform-origin:left center;transform:rotate(38deg)}
.brand-mark > span:nth-child(3){left:12px;bottom:9px;width:11px;height:3px;background:var(--act-400);transform-origin:left center;transform:rotate(-38deg)}
.brand-text{display:block;min-width:0}
.brand-name{
  display:block;font-family:var(--font-display);font-weight:800;
  font-size:22px;line-height:1;letter-spacing:.08em;color:var(--paper-100);
}
.brand-tag{
  display:block;margin-top:4px;
  font-size:11px;line-height:1;letter-spacing:.08em;color:var(--haze-400);
  white-space:nowrap;
}

/* 导航 */
.nav{flex:1 1 auto;display:flex;align-items:center;justify-content:center;min-width:0}
.nav-list{display:flex;align-items:center;justify-content:center;gap:2px;flex-wrap:wrap}
.nav-link{
  display:inline-flex;align-items:center;
  padding:10px 14px;border-radius:999px;
  font-size:15px;line-height:1;letter-spacing:.02em;color:var(--haze-400);white-space:nowrap;
  transition:color .18s var(--ease),background .18s var(--ease),box-shadow .18s var(--ease);
}
.nav-link:hover{color:var(--paper-100);background:rgba(233,240,251,.07)}
.nav-link[aria-current="page"]{
  color:var(--sig-400);
  background:rgba(43,245,192,.1);
  box-shadow:inset 0 0 0 1px rgba(43,245,192,.45);
}

/* 头部动作区 */
.header-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}

/* 移动菜单按钮 */
.nav-toggle{
  display:none;align-items:center;gap:8px;
  padding:9px 14px;border-radius:999px;
  border:1px solid var(--line-500);
  background:rgba(18,28,51,.92);
  color:var(--paper-100);font-size:13px;line-height:1;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--sig-400);color:var(--sig-400)}
.nav-toggle-label{letter-spacing:.08em}
.nav-toggle-icon{position:relative;display:block;width:16px;height:12px;flex:0 0 auto}
.nav-toggle-icon > span{
  position:absolute;left:0;right:0;height:2px;border-radius:2px;background:var(--sig-400);
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle-icon > span:nth-child(1){top:0}
.nav-toggle-icon > span:nth-child(2){bottom:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-icon > span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-icon > span:nth-child(2){transform:translateY(-5px) rotate(-45deg)}

/* 快捷刻度条 */
.quickbar{
  display:flex;align-items:center;gap:14px;
  min-height:32px;padding:0 18px;
  border:1px solid rgba(30,42,68,.8);
  border-radius:999px;
  background:rgba(5,9,18,.72);
  backdrop-filter:blur(10px);
  overflow:hidden;
  max-height:40px;
  transition:max-height .25s var(--ease),opacity .2s var(--ease),margin .25s var(--ease);
}
.site-header.is-condensed .quickbar{max-height:0;opacity:0;margin-top:-8px;border-color:transparent}
.quickbar-label{
  display:inline-flex;align-items:center;gap:7px;flex:0 0 auto;
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--sig-400);
}
.quickbar-label::before{content:"";width:5px;height:5px;border-radius:1px;background:var(--sig-400)}
.quickbar-list{display:flex;align-items:center;gap:16px;overflow-x:auto;scrollbar-width:none;min-width:0}
.quickbar-list::-webkit-scrollbar{display:none}
.quickbar-link{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:var(--haze-400);
  white-space:nowrap;transition:color .18s var(--ease);
}
.quickbar-link:hover{color:var(--sig-400)}
.quickbar-meta{
  display:inline-flex;align-items:center;gap:9px;margin-left:auto;flex:0 0 auto;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;color:var(--haze-400);white-space:nowrap;
}
.quickbar-meta::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--sig-400);
  box-shadow:0 0 0 4px rgba(43,245,192,.14);
  animation:yk-pulse 2.6s var(--ease) infinite;
}
@keyframes yk-pulse{
  0%,100%{opacity:1;box-shadow:0 0 0 4px rgba(43,245,192,.14)}
  50%{opacity:.55;box-shadow:0 0 0 7px rgba(43,245,192,.05)}
}

/* ---------- 头部响应式 ---------- */
@media (max-width:1023px){
  .nav-toggle{display:inline-flex}
  .nav{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;justify-content:flex-start;
    padding:12px;
    border-radius:24px;
    border:1px solid var(--line-500);
    background:rgba(10,17,34,.98);
    box-shadow:0 26px 60px rgba(2,5,12,.78);
    backdrop-filter:blur(18px);
  }
  .nav[data-open]{display:flex}
  .nav-list{flex-direction:column;align-items:stretch;gap:4px;width:100%}
  .nav-link{
    justify-content:space-between;width:100%;
    padding:14px 16px;border-radius:14px;font-size:16px;
  }
  .nav-link::after{content:"↗";font-family:var(--font-mono);font-size:12px;color:var(--sig-700)}
  .nav-link[aria-current="page"]::after{color:var(--sig-400)}
  .quickbar{min-height:30px;padding:0 14px;gap:10px}
  .quickbar-meta{display:none}
}
@media (max-width:560px){
  .site-header{padding-top:10px}
  .header-rail{min-height:56px;padding:6px 8px 6px 10px;gap:8px}
  .brand-mark{width:30px;height:30px;border-radius:9px}
  .brand-mark > span:nth-child(1){left:8px;top:7px;height:16px}
  .brand-mark > span:nth-child(2){left:11px;top:8px;width:9px}
  .brand-mark > span:nth-child(3){left:11px;bottom:8px;width:9px}
  .brand-name{font-size:19px}
  .brand-tag{display:none}
  .header-actions .btn-accent{padding:9px 13px;font-size:12.5px}
  .nav-toggle{padding:8px 11px}
}
@media (max-width:420px){
  .nav-toggle-label{display:none}
  .nav-toggle{padding:9px 11px}
}

/* ==========================================================================
   页脚
   ========================================================================== */
.site-footer{
  position:relative;z-index:1;
  margin-top:clamp(48px,8vw,96px);
  padding:clamp(44px,6vw,76px) var(--edge) 22px;
  background:
    radial-gradient(900px 420px at 88% 0%, rgba(43,245,192,.10), transparent 62%),
    linear-gradient(180deg,var(--ink-900) 0%,var(--ink-800) 58%,var(--ink-900) 100%);
  border-top:1px solid var(--line-500);
  overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:12px;
  background-image:repeating-linear-gradient(90deg, rgba(43,245,192,.55) 0 1px, transparent 1px 48px);
  opacity:.7;pointer-events:none;
}
.site-footer::after{
  content:"";position:absolute;top:0;right:0;width:46%;height:100%;
  background-image:repeating-linear-gradient(115deg, rgba(30,42,68,.55) 0 1px, transparent 1px 42px);
  opacity:.55;pointer-events:none;
}
.footer-inner{position:relative;z-index:1;width:100%;max-width:var(--maxw);margin-inline:auto}

.footer-grid{
  display:grid;
  grid-template-columns:1.7fr .9fr .9fr .8fr 1.5fr;
  gap:clamp(22px,3vw,48px);
  padding-bottom:clamp(28px,4vw,48px);
}
.footer-brand{display:flex;flex-direction:column;align-items:flex-start;gap:14px}
.footer-tagline{font-size:14px;line-height:1.8;color:var(--haze-400);max-width:24em}
.footer-version{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  color:var(--sig-700);text-transform:uppercase;
}
.footer-brand .btn{margin-top:2px}

.footer-col{display:flex;flex-direction:column;gap:14px;min-width:0}
.footer-col-title{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--paper-100);
  padding-bottom:8px;border-bottom:1px solid var(--line-500);
}
.footer-col-title::before{content:"";width:5px;height:5px;background:var(--sig-400);flex:0 0 auto}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;color:var(--haze-400);
  transition:color .18s var(--ease),transform .18s var(--ease);
}
.footer-link::before{
  content:"";width:0;height:1px;background:var(--sig-400);
  transition:width .18s var(--ease);
}
.footer-link:hover{color:var(--sig-400);transform:translateX(2px)}
.footer-link:hover::before{width:12px}

.footer-col--contact{min-width:0}
.contact-list{display:flex;flex-direction:column;gap:10px}
.contact-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;min-width:0}
.contact-label{
  flex:0 0 auto;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--sig-700);
}
.contact-value{font-size:13px;line-height:1.6;color:var(--paper-100);word-break:break-all;min-width:0}
.copy-btn{
  flex:0 0 auto;
  padding:3px 9px;border-radius:999px;
  border:1px solid var(--line-500);background:rgba(18,28,51,.7);
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.08em;color:var(--haze-400);
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.copy-btn:hover{color:var(--sig-400);border-color:var(--sig-400)}
.copy-btn[data-copied="true"]{background:var(--sig-400);border-color:var(--sig-400);color:#04120E}
.contact-note{
  margin-top:14px;padding-top:14px;border-top:1px dashed var(--line-500);
  font-size:12px;line-height:1.8;color:var(--haze-400);max-width:30em;
}

.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  padding-top:20px;border-top:1px solid var(--line-500);
}
.footer-legal{font-size:12px;letter-spacing:.04em;color:var(--haze-400)}
.footer-icp{
  margin-left:auto;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;color:var(--haze-400);
  white-space:nowrap;
}

@media (max-width:1023px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand{grid-column:1 / -1}
  .footer-col--contact{grid-column:1 / -1}
}
@media (max-width:560px){
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px}
  .footer-bottom{align-items:flex-start;flex-direction:column;gap:8px}
  .footer-icp{margin-left:0}
}

/* ==========================================================================
   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;transform:none}
  .to-top{transform:none}
}