/* ===== 云开全站 Site Kit 共享样式 ===== */
*,*::before,*::after{box-sizing:border-box}
*{margin:0;padding:0}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body{font-family:var(--f-body);font-size:16px;line-height:1.6;color:var(--c-deep);background:var(--c-cloud);-webkit-font-smoothing:antialiased;min-height:100vh}
img,picture,video,canvas{display:block;max-width:100%;height:auto}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer;padding:0}
ul[class],ol[class]{list-style:none}
a{color:inherit;text-decoration:none}
[hidden]{display:none!important}

:root{
  --c-deep:#0A1A2F;
  --c-neon:#00FF9D;
  --c-coral:#FF4D2E;
  --c-graphite:#18181B;
  --c-cloud:#F4F6F8;
  --c-grid:#C7CDD6;
  --c-lblue:#1E3A5F;
  --grad-accent:linear-gradient(135deg,#00FF9D 0%,#FF4D2E 100%);
  --f-head:'Archivo Black','PingFang SC','Microsoft YaHei',sans-serif;
  --f-body:'Inter','Source Han Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --f-mono:'Roboto Mono','SF Mono',ui-monospace,'Cascadia Mono',monospace;
  --container:1240px;
  --pad:clamp(16px,4vw,48px);
  --shadow-card:0 18px 50px rgba(10,26,47,0.14);
  --shadow-glow:0 0 24px rgba(0,255,157,0.35);
  --ease:cubic-bezier(0.22,1,0.36,1);
}

h1,h2,h3,h4,h5,h6{font-family:var(--f-head);font-style:italic;font-weight:900;letter-spacing:-0.02em;line-height:1.08;color:var(--c-deep)}
.section--dark h1,.section--dark h2,.section--dark h3,.section--dark h4,.section--dark h5,.section--dark h6{color:var(--c-cloud)}
p{max-width:70ch}
.mono, .data-num{font-family:var(--f-mono);font-variant-numeric:tabular-nums}
.text-neon{color:var(--c-neon)}
.text-coral{color:var(--c-coral)}
.text-muted{color:rgba(10,26,47,0.62)}
.section--dark .text-muted{color:rgba(244,246,248,0.58)}

.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:var(--pad)}
.page-main{min-height:60vh}

/* 章节 */
.section{position:relative;padding-block:clamp(56px,10vw,128px)}
.section--dark{background:var(--c-deep);color:rgba(244,246,248,0.82)}
.section--light{background:var(--c-cloud);color:var(--c-deep)}
.section--slant{clip-path:polygon(0 0,100% 0,100% calc(100% - 36px),0 100%)}

.sec-header{max-width:720px;margin-bottom:44px}
.sec-index{display:inline-block;font-family:var(--f-mono);font-size:12px;letter-spacing:0.16em;text-transform:uppercase;color:var(--c-coral);margin-bottom:12px}
.sec-index::before{content:"// "}
.sec-title{font-size:clamp(32px,6vw,64px);line-height:1.02;margin-bottom:12px}
.sec-desc{font-size:16px;line-height:1.7;color:rgba(10,26,47,0.66)}
.section--dark .sec-desc{color:rgba(244,246,248,0.6)}

/* 栅格 */
.grid{display:grid;gap:24px}
.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))}

/* 面板 */
.panel{position:relative;padding:28px;background:var(--c-lblue);color:var(--c-cloud);clip-path:polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,0 100%);transition:transform var(--ease)}
.panel:hover{transform:translateY(-4px)}
.panel--light{background:#fff;color:var(--c-deep);box-shadow:var(--shadow-card)}
.panel--slant{clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,18px 100%,0 calc(100% - 18px))}

/* 按钮 */
.btn{position:relative;z-index:0;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 28px;font-family:var(--f-head);font-style:italic;font-weight:900;font-size:15px;line-height:1;color:var(--c-deep);transition:transform var(--ease)}
.btn::before{content:"";position:absolute;inset:0;z-index:-1;background:var(--c-neon);box-shadow:0 10px 28px rgba(0,255,157,0.22);clip-path:polygon(0 0,calc(100% - 12px) 0,100% 12px,100% 100%,12px 100%,0 calc(100% - 12px));transition:filter var(--ease),background var(--ease)}
.btn:hover{transform:translateY(-2px)}
.btn:hover::before{filter:brightness(1.08) saturate(1.1)}
.btn--neon::before{background:var(--grad-accent)}
.btn--ghost{color:var(--c-deep)}
.btn--ghost::before{background:transparent;border:1px solid rgba(10,26,47,0.32);clip-path:none;box-shadow:none}
.btn--ghost:hover::before{background:rgba(0,255,157,0.08);border-color:var(--c-neon)}
.section--dark .btn--ghost{color:var(--c-neon)}
.section--dark .btn--ghost::before{border-color:rgba(0,255,157,0.5);background:transparent}
.section--dark .btn--ghost:hover::before{background:rgba(0,255,157,0.1);border-color:var(--c-neon)}
.btn--block{display:flex;width:100%}

/* 面包屑 */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:20px 0 12px;font-family:var(--f-mono);font-size:12px;letter-spacing:0.08em;color:rgba(10,26,47,0.5)}
.breadcrumb a{color:var(--c-coral)}
.breadcrumb .breadcrumb__sep{color:rgba(10,26,47,0.3)}

/* 数据读数 */
.data-num{font-family:var(--f-mono);font-size:clamp(28px,4vw,48px);font-weight:500;line-height:1;color:var(--c-deep)}
.section--dark .data-num{color:var(--c-neon)}
.data-label{font-size:13px;color:rgba(10,26,47,0.56);margin-top:6px;letter-spacing:0.02em}
.section--dark .data-label{color:rgba(244,246,248,0.5)}

/* 过滤器 */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px}
.filter-btn{padding:8px 18px;font-family:var(--f-mono);font-size:12px;letter-spacing:0.08em;color:var(--c-deep);border:1px solid rgba(10,26,47,0.22);border-radius:2px;transition:border-color var(--ease),color var(--ease),background var(--ease)}
.filter-btn:hover{border-color:var(--c-neon);color:var(--c-neon)}
.filter-btn[aria-pressed="true"]{background:var(--c-deep);color:var(--c-neon);border-color:var(--c-deep)}
.section--dark .filter-btn{color:rgba(244,246,248,0.7);border-color:rgba(244,246,248,0.2)}
.section--dark .filter-btn[aria-pressed="true"]{background:var(--c-neon);color:var(--c-deep);border-color:var(--c-neon)}
@keyframes fade-up{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.filtered-in{animation:fade-up 0.3s ease}

/* 媒体容器 */
.media-frame{position:relative;overflow:hidden;aspect-ratio:16/9;background:linear-gradient(rgba(10,26,47,0.05) 1px,transparent 1px),linear-gradient(90deg,rgba(10,26,47,0.05) 1px,transparent 1px),var(--c-grid);background-size:24px 24px,24px 24px,auto;clip-path:polygon(0 0,calc(100% - 16px) 0,100% 16px,100% 100%,0 100%)}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--square{aspect-ratio:1/1}
.media-frame img,.media-frame video{width:100%;height:100%;object-fit:cover;position:relative;z-index:1}
.media-frame::after{content:"";position:absolute;inset:0;z-index:2;background:linear-gradient(135deg,rgba(255,77,46,0.1),rgba(0,255,157,0.05));pointer-events:none}

/* 正文 */
.prose{max-width:760px}
.prose p{margin-bottom:1.1em}
.prose h2{margin:2em 0 0.6em;font-size:28px}
.prose h3{margin:1.6em 0 0.5em;font-size:22px}
.prose ul{margin:0 0 1.2em;padding-left:1.4em;list-style:disc}
.prose li{margin-bottom:0.4em}
.prose a{color:var(--c-coral);text-decoration:underline;text-underline-offset:2px}

/* 显现动画 */
[data-reveal]{opacity:0;transform:translateY(24px);transition:opacity 0.7s ease-out,transform 0.7s var(--ease);will-change:opacity,transform}
[data-reveal].is-revealed{opacity:1;transform:none}
[data-reveal-delay="1"]{transition-delay:0.1s}
[data-reveal-delay="2"]{transition-delay:0.2s}
[data-reveal-delay="3"]{transition-delay:0.3s}

/* ===== 头部 ===== */
.site-header{position:sticky;top:0;z-index:300;background:var(--c-deep);color:var(--c-cloud);border-bottom:1px solid rgba(0,255,157,0.25)}
.site-header::before{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(244,246,248,0.035) 1px,transparent 1px),linear-gradient(90deg,rgba(244,246,248,0.035) 1px,transparent 1px);background-size:28px 28px}
.site-header::after{content:"";position:absolute;bottom:0;left:0;right:0;height:2px;background:var(--grad-accent)}
.site-header__top,.site-header__bottom{position:relative}
.site-header__top-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-block:10px}
.site-header__bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:6px;border-top:1px dashed rgba(199,205,214,0.18)}
.site-header__bottom-inner::before{content:"NAV / QZ-06";flex:none;font-family:var(--f-mono);font-size:10px;letter-spacing:0.16em;color:rgba(244,246,248,0.4);margin-right:16px;padding-right:16px;border-right:1px solid rgba(244,246,248,0.15)}

.brand{display:inline-flex;align-items:center;gap:12px}
.brand__mark{position:relative;width:38px;height:34px;display:grid;grid-template-columns:repeat(3,1fr);gap:3px;align-items:end;transform:skew(-10deg)}
.brand__mark i{display:block;background:var(--grad-accent);border-radius:1px}
.brand__mark i:nth-child(1){height:46%}
.brand__mark i:nth-child(2){height:72%}
.brand__mark i:nth-child(3){height:98%}
.brand__mark::after{content:"";position:absolute;left:-2px;right:-2px;top:50%;height:2px;background:var(--c-coral);transform:rotate(-24deg);opacity:0.85;pointer-events:none}
.brand__text{display:flex;flex-direction:column}
.brand__name{font-family:var(--f-head);font-style:italic;font-weight:900;font-size:22px;line-height:1;color:var(--c-cloud);letter-spacing:-0.02em}
.brand__slogan{font-family:var(--f-mono);font-size:11px;letter-spacing:0.12em;color:var(--c-neon);margin-top:3px}

.site-header__telemetry{display:flex;align-items:center;gap:16px;font-family:var(--f-mono);font-size:12px;letter-spacing:0.04em;color:rgba(244,246,248,0.6)}
.telemetry__coord::before{content:"//";color:var(--c-coral);margin-right:6px}
.telemetry__live{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border:1px solid rgba(0,255,157,0.35);border-radius:999px;color:var(--c-neon)}
.telemetry__dot{width:6px;height:6px;border-radius:50%;background:var(--c-neon);animation:pulse-dot 1.6s ease-in-out infinite}
@keyframes pulse-dot{0%,100%{opacity:1;box-shadow:0 0 0 0 rgba(0,255,157,0.5)}50%{opacity:0.5;box-shadow:0 0 0 5px rgba(0,255,157,0)}}

.main-nav{order:1}
.main-nav__list{display:flex;gap:clamp(4px,1.5vw,24px)}
.main-nav__link{position:relative;display:inline-block;padding:10px 6px 8px;font-family:var(--f-head);font-style:italic;font-weight:900;font-size:15px;letter-spacing:0.01em;color:rgba(244,246,248,0.78);transition:color var(--ease)}
.main-nav__link::before{content:attr(data-index);font-family:var(--f-mono);font-style:normal;font-weight:500;font-size:10px;vertical-align:super;margin-right:4px;color:var(--c-coral)}
.main-nav__link::after{content:"";position:absolute;left:6px;right:6px;bottom:2px;height:3px;background:var(--grad-accent);transform:scaleX(0);transform-origin:left;transition:transform var(--ease)}
.main-nav__link:hover{color:var(--c-cloud)}
.main-nav__link:hover::after,.main-nav__link[aria-current="page"]::after{transform:scaleX(1)}
.main-nav__link[aria-current="page"]{color:var(--c-neon)}

.nav-toggle{display:none;order:2;position:relative;z-index:330;align-items:center;gap:8px;padding:8px 12px;border:1px solid rgba(0,255,157,0.4);border-radius:2px;background:rgba(0,255,157,0.06);color:var(--c-neon);font-family:var(--f-mono);font-size:12px;letter-spacing:0.1em;text-transform:uppercase;transition:background var(--ease),border-color var(--ease)}
.nav-toggle:hover{background:rgba(0,255,157,0.14)}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:3px;width:16px}
.nav-toggle__bars i{height:2px;background:currentColor;transition:transform var(--ease),opacity var(--ease)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

.skip-link{position:fixed;left:12px;top:12px;z-index:500;padding:10px 16px;background:var(--c-neon);color:var(--c-deep);font-weight:700;font-size:14px;border-radius:2px;transform:translateY(calc(-100% - 24px));transition:transform 0.3s ease}
.skip-link:focus-visible{transform:translateY(0)}

body.nav-lock{overflow:hidden}

/* ===== 页脚 ===== */
.site-footer{position:relative;background:var(--c-graphite);color:rgba(244,246,248,0.72);overflow:hidden}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad-accent)}
.site-footer__watermark{position:absolute;right:-2%;top:10px;font-family:var(--f-head);font-style:italic;font-weight:900;font-size:clamp(90px,18vw,260px);line-height:1;color:rgba(244,246,248,0.03);pointer-events:none;letter-spacing:-0.04em;transform:rotate(-6deg);white-space:nowrap}
.site-footer__main{position:relative;display:grid;grid-template-columns:2fr 1.4fr 1.2fr 1.2fr;gap:32px;padding-top:clamp(56px,10vw,110px);padding-bottom:48px}

.footer-brand__mark{width:40px;height:36px;display:grid;grid-template-columns:repeat(3,1fr);gap:3px;align-items:end;margin-bottom:16px;transform:skew(-10deg)}
.footer-brand__mark i{display:block;background:var(--grad-accent)}
.footer-brand__mark i:nth-child(1){height:45%}
.footer-brand__mark i:nth-child(2){height:70%}
.footer-brand__mark i:nth-child(3){height:95%}
.footer-brand__title{font-family:var(--f-head);font-style:italic;font-size:28px;font-weight:900;color:var(--c-cloud);margin-bottom:12px}
.footer-brand__desc{max-width:34ch;font-size:14px;line-height:1.75;margin-bottom:14px}
.footer-brand__trust{display:inline-block;font-family:var(--f-mono);font-size:12px;color:var(--c-neon);padding:6px 12px;border:1px dashed rgba(0,255,157,0.32);border-radius:2px}

.footer-col__title{display:flex;align-items:center;gap:8px;font-family:var(--f-mono);font-style:normal;font-weight:500;font-size:13px;letter-spacing:0.12em;text-transform:uppercase;color:rgba(244,246,248,0.42);margin-bottom:18px}
.footer-col__title::before{content:"";width:18px;height:2px;background:var(--grad-accent)}
.footer-col__list{display:grid;gap:8px;font-size:14px}
.footer-col__list li{display:flex;gap:8px}
.footer-label{flex:none;width:3em;font-family:var(--f-mono);font-size:11px;color:var(--c-coral);line-height:1.8}
.footer-col__list--links a{color:rgba(244,246,248,0.78);position:relative;padding-left:16px;transition:color var(--ease)}
.footer-col__list--links a::before{content:"→";position:absolute;left:0;color:var(--c-neon);font-family:var(--f-mono)}
.footer-col__list--links a:hover{color:var(--c-neon)}
.footer-note{font-size:13px;line-height:1.7;color:rgba(244,246,248,0.56);margin-bottom:14px}
.footer-status{display:inline-flex;align-items:center;gap:8px;font-family:var(--f-mono);font-size:11px;color:var(--c-neon);padding:5px 10px;border:1px solid rgba(0,255,157,0.3);border-radius:999px}
.footer-status i{width:6px;height:6px;border-radius:50%;background:var(--c-neon);animation:pulse-dot 1.8s infinite}

.site-footer__bottom{position:relative;border-top:1px dashed rgba(199,205,214,0.16)}
.site-footer__bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-block:18px;font-family:var(--f-mono);font-size:12px;letter-spacing:0.02em;color:rgba(244,246,248,0.4)}

/* ===== 响应式 ===== */
@media (max-width:991.98px){
  .grid--3,.grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .site-footer__main{grid-template-columns:1fr 1fr}
  .nav-toggle{display:inline-flex}
  .main-nav{position:fixed;top:0;right:0;bottom:0;width:min(86vw,380px);z-index:320;padding:96px var(--pad) 40px;background:var(--c-deep);border-left:2px solid var(--c-neon);box-shadow:-24px 0 60px rgba(0,0,0,0.4);transform:translateX(105%);visibility:hidden;transition:transform 0.4s var(--ease),visibility 0.4s}
  .main-nav::before{content:"MENU / QZ";position:absolute;top:22px;right:24px;font-family:var(--f-mono);font-size:11px;letter-spacing:0.18em;color:var(--c-neon)}
  .main-nav[data-open="true"]{transform:translateX(0);visibility:visible}
  .main-nav__list{flex-direction:column;gap:4px}
  .main-nav__link{font-size:24px;padding:14px 0;border-bottom:1px solid rgba(199,205,214,0.12);color:var(--c-cloud)}
  .main-nav__link::before{font-size:12px;margin-right:12px}
  .main-nav__link::after{display:none}
}
@media (max-width:767.98px){
  .site-header__telemetry{display:none}
}
@media (max-width:575.98px){
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr}
  .site-footer__main{grid-template-columns:1fr;gap:24px}
  .site-footer__bottom-inner{flex-direction:column;text-align:center}
  .brand__name{font-size:19px}
  .brand__slogan{font-size:10px;letter-spacing:0.08em}
  .brand__mark{width:32px;height:28px}
  .nav-toggle__label{display:none}
}

/* ===== 焦点与动效降级 ===== */
:focus-visible{outline:2px solid var(--c-neon);outline-offset:3px}
.btn:focus-visible{outline:none}
.btn:focus-visible::before{outline:2px dashed var(--c-deep);outline-offset:-5px}
.main-nav__link:focus-visible{outline:2px dashed var(--c-neon);outline-offset:4px;border-radius:2px}
.nav-toggle:focus-visible,.filter-btn:focus-visible{outline:2px solid var(--c-neon);outline-offset:2px}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:0.01ms!important;animation-iteration-count:1!important;transition-duration:0.01ms!important}
  .main-nav{transition:none}
  [data-reveal]{opacity:1;transform:none}
  .site-header::before{display:none}
}