/* =========================================================
   2026看台 · 共享样式 /assets/site.css
   深墨底 + 蓝图网格 + 看台蓝台面 + 荧光草绿/热力橙状态色
   ========================================================= */

/* ---------- 01 复位 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0}
img,picture,svg,video,canvas{display:block;max-width:100%}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;padding:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid #B8FF3C;outline-offset:3px;border-radius:3px}

/* ---------- 02 变量 ---------- */
:root{
  --c-ink:#060B14;
  --c-table:#0B1526;
  --c-line:#1E3552;
  --c-blue:#2F7DF6;
  --c-blue-soft:#6FA9FF;
  --c-green:#B8FF3C;
  --c-orange:#FF7A2F;
  --c-paper:#F4EADA;
  --c-muted:#8FA3BF;
  --c-red:#D9483B;

  --font-display:'Source Han Sans SC','Noto Sans SC','PingFang SC',sans-serif;
  --font-score:'DIN Alternate','Arial Black','Impact','Noto Sans SC',sans-serif;
  --font-body:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --font-label:'JetBrains Mono','SFMono-Regular',Consolas,monospace;

  --shell-max:1280px;
  --pad-inline:clamp(16px,4vw,48px);
  --radius-card:16px 26px 14px 24px;
  --radius-soft:10px 18px 8px 16px;
  --radius-pill:999px;
  --shadow-card:0 26px 54px -34px rgba(0,0,0,.96);
  --shadow-lift:0 30px 60px -30px rgba(0,0,0,1);
  --gap:clamp(14px,1.8vw,26px);
  --ease:cubic-bezier(.2,.7,.2,1);
}

/* ---------- 03 页面底与中文排版 ---------- */
body{
  min-height:100vh;
  background-color:var(--c-ink);
  background-image:
    radial-gradient(1100px 620px at 84% -12%, rgba(47,125,246,.20), transparent 68%),
    radial-gradient(760px 460px at -12% 4%, rgba(184,255,60,.07), transparent 72%),
    linear-gradient(rgba(30,53,82,.42) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30,53,82,.42) 1px, transparent 1px);
  background-size:auto,auto,72px 72px,72px 72px;
  color:var(--c-paper);
  font-family:var(--font-body);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  letter-spacing:.012em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:900;line-height:1.18;letter-spacing:-.02em}
p{text-wrap:pretty}

.shell{width:100%;max-width:var(--shell-max);margin-inline:auto;padding-inline:var(--pad-inline)}
.stack{display:flex;flex-direction:column;gap:var(--gap)}
.muted{color:var(--c-muted);font-size:14px;line-height:1.7}

.display-title{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(2rem,5.2vw,4rem);
  line-height:1.14;
  letter-spacing:-.03em;
  text-wrap:balance;
}
.score-num{
  font-family:var(--font-score);
  font-weight:900;
  font-size:clamp(3rem,11vw,9rem);
  line-height:1;
  letter-spacing:-.04em;
  font-variant-numeric:tabular-nums;
  color:var(--c-orange);
}
.lede{font-size:clamp(1rem,1.6vw,1.125rem);line-height:1.8;color:#D8E2F2}
.label{
  font-family:var(--font-label);
  font-size:12px;
  font-weight:500;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--c-muted);
}
.section{position:relative;padding-block:clamp(48px,7vw,96px)}
.section-head{display:flex;flex-wrap:wrap;gap:14px 28px;align-items:flex-end;justify-content:space-between;margin-bottom:clamp(24px,3vw,44px)}
.section-label{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-label);font-size:12px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--c-blue-soft);
  border:1px solid var(--c-line);border-radius:3px 10px 3px 10px;
  padding:3px 9px;background:rgba(11,21,38,.85);
}
.section-title{font-family:var(--font-display);font-weight:900;font-size:clamp(1.5rem,3.4vw,2.5rem);letter-spacing:-.03em}
.rule{height:1px;border:0;margin:0;background:linear-gradient(90deg,var(--c-line),rgba(30,53,82,0))}

.prose{max-width:64ch;color:#E4DBCC}
.prose p{margin-bottom:1.1em}
.prose p:last-child{margin-bottom:0}
.prose strong{color:#fff;font-weight:700}
.prose a{color:var(--c-blue-soft);border-bottom:1px solid rgba(111,169,255,.4)}

/* ---------- 04 网格与容器 ---------- */
.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:var(--gap)}
@media (max-width:900px){.grid-12{grid-template-columns:repeat(6,minmax(0,1fr))}}
@media (max-width:560px){.grid-12{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* ---------- 05 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-label);font-size:13px;font-weight:500;letter-spacing:.06em;
  padding:10px 18px;border-radius:var(--radius-pill);
  border:1px solid var(--c-line);color:var(--c-paper);background:rgba(11,21,38,.9);
  transition:background-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
  white-space:nowrap;
}
.btn--primary{
  background:var(--c-blue);border-color:var(--c-blue);color:#04070D;font-weight:700;
  box-shadow:0 12px 26px -16px rgba(47,125,246,.95);
}
.btn--primary:hover{background:var(--c-blue-soft);border-color:var(--c-blue-soft);transform:translateY(-2px);box-shadow:0 16px 30px -14px rgba(111,169,255,.95)}
.btn--ghost:hover{border-color:var(--c-blue-soft);color:#fff;transform:translateY(-2px)}

/* ---------- 06 状态标签 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-label);font-size:12px;font-weight:500;letter-spacing:.08em;text-transform:uppercase;
  padding:3px 9px;border-radius:3px 10px 3px 10px;
  border:1px solid var(--c-line);color:var(--c-muted);background:rgba(11,21,38,.8);
}
.tag--blue{color:var(--c-blue-soft);border-color:rgba(111,169,255,.45);background:rgba(47,125,246,.12)}
.tag--green{color:var(--c-green);border-color:rgba(184,255,60,.45);background:rgba(184,255,60,.08)}
.tag--orange{color:var(--c-orange);border-color:rgba(255,122,47,.45);background:rgba(255,122,47,.1)}
.tag--red{color:var(--c-red);border-color:rgba(217,72,59,.5);background:rgba(217,72,59,.1)}
.tag--muted{color:var(--c-muted)}

/* ---------- 07 筛选 chip ---------- */
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-label);font-size:12px;letter-spacing:.06em;
  padding:6px 14px;border-radius:var(--radius-pill);
  border:1px solid var(--c-line);color:var(--c-muted);background:rgba(11,21,38,.75);
  transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);
}
.chip:hover{color:var(--c-paper);border-color:var(--c-blue-soft)}
.chip--on{color:#04070D;background:var(--c-green);border-color:var(--c-green);font-weight:700}

/* ---------- 08 卡片 ---------- */
.card{
  position:relative;
  background:var(--c-table);
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  padding:clamp(16px,2vw,26px);
  box-shadow:var(--shadow-card);
  transition:transform .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:var(--c-blue-soft);box-shadow:var(--shadow-lift)}
.card__label{
  display:inline-block;
  font-family:var(--font-label);font-size:12px;letter-spacing:.08em;color:var(--c-blue-soft);
  margin-bottom:10px;
}
.card__title{font-family:var(--font-display);font-weight:900;font-size:clamp(1.05rem,1.8vw,1.35rem);letter-spacing:-.02em;margin-bottom:8px}
.card__meta{font-family:var(--font-label);font-size:12px;letter-spacing:.06em;color:var(--c-muted)}
.card--report{border-radius:6px 22px 6px 22px;border-left:3px solid var(--c-orange)}
.card--clip{border-radius:22px 6px 22px 6px;border-right:3px solid var(--c-green)}

/* ---------- 09 图片容器（页面阶段放 img/占位）---------- */
.media{
  position:relative;overflow:hidden;
  border:1px solid var(--c-line);border-radius:var(--radius-card);
  background:var(--c-table);
}
.media__frame{
  position:relative;width:100%;aspect-ratio:16/9;overflow:hidden;
  background:linear-gradient(160deg,#0D1C33,#060B14 70%);
}
.media--tall .media__frame{aspect-ratio:3/4}
.media--square .media__frame{aspect-ratio:1/1}
.media--wide .media__frame{aspect-ratio:21/9}
.media__img{width:100%;height:100%;object-fit:cover;filter:saturate(.96) contrast(1.06)}
.media__cap{
  font-family:var(--font-label);font-size:12px;letter-spacing:.06em;color:var(--c-muted);
  padding:10px 14px;border-top:1px solid var(--c-line);background:rgba(6,11,20,.6);
}

/* ---------- 10 面包屑 / 目录 / 斜切 ---------- */
.breadcrumb{padding-block:18px 0}
.breadcrumb__list{display:flex;flex-wrap:wrap;gap:8px;font-family:var(--font-label);font-size:12px;letter-spacing:.06em;color:var(--c-muted)}
.breadcrumb__item::after{content:"/";margin-left:8px;color:var(--c-line)}
.breadcrumb__item:last-child::after{content:"";margin:0}
.breadcrumb__item a:hover{color:var(--c-blue-soft)}
.toc{border:1px solid var(--c-line);border-radius:var(--radius-soft);background:rgba(11,21,38,.72);padding:16px 18px}
.toc__list{display:flex;flex-direction:column;gap:8px}
.toc__item{font-family:var(--font-label);font-size:13px;letter-spacing:.04em;color:var(--c-muted)}
.toc__item a:hover{color:var(--c-green)}
.edge-slash{height:clamp(46px,8vw,110px);background:var(--c-table);clip-path:polygon(0 100%,100% 0,100% 100%);margin-block:clamp(24px,4vw,56px)}

/* ---------- 11 跳转链接 ---------- */
.skip-link{
  position:absolute;left:16px;top:-64px;z-index:200;
  padding:10px 16px;border-radius:0 0 12px 12px;
  background:var(--c-green);color:#04070D;
  font-family:var(--font-label);font-size:13px;font-weight:700;letter-spacing:.06em;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:0}

/* ---------- 12 页头 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:linear-gradient(180deg,rgba(6,11,20,.97),rgba(6,11,20,.86));
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--c-line);
}
.scroll-meter{position:absolute;left:0;right:0;bottom:-1px;height:2px;pointer-events:none}
.scroll-meter__fill{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--c-blue),var(--c-green));
  transition:width .12s linear;
}

.header-top{border-bottom:1px solid rgba(30,53,82,.75);background:rgba(11,21,38,.55)}
.header-top__inner{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding-block:14px;
  transition:padding-block .28s var(--ease);
}
.site-header[data-scrolled] .header-top__inner{padding-block:7px}

.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand__glyph{
  display:grid;place-items:center;flex:0 0 auto;
  width:38px;height:38px;
  background:linear-gradient(140deg,var(--c-blue),#1B4FA8);
  color:#04070D;font-family:var(--font-score);font-weight:900;font-size:18px;line-height:1;
  border-radius:10px 14px 6px 16px;
  box-shadow:0 0 0 1px rgba(184,255,60,.35),0 10px 24px -14px rgba(47,125,246,.95);
}
.brand__text{display:flex;flex-direction:column;min-width:0}
.brand__name{font-family:var(--font-display);font-weight:900;font-size:clamp(1.05rem,2vw,1.3rem);letter-spacing:-.02em;line-height:1.2}
.brand__tagline{
  font-family:var(--font-label);font-size:11.5px;letter-spacing:.06em;color:var(--c-muted);
  line-height:1.5;max-height:24px;overflow:hidden;
  transition:opacity .24s var(--ease),max-height .28s var(--ease);
}
.site-header[data-scrolled] .brand__tagline{opacity:0;max-height:0}
.header-top__aside{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.header-meta{
  font-family:var(--font-label);font-size:11.5px;letter-spacing:.1em;color:var(--c-blue-soft);
  border:1px solid var(--c-line);border-radius:3px 10px 3px 10px;padding:3px 9px;
  transition:opacity .24s var(--ease);
}
.site-header[data-scrolled] .header-meta{opacity:0}

.header-bar{position:relative}
.header-bar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:2px}
.site-nav{display:block}
.site-nav__list{counter-reset:navidx;display:flex;flex-wrap:wrap;align-items:center;gap:clamp(6px,1.6vw,26px)}
.site-nav__item{counter-increment:navidx}
.site-nav__link{
  position:relative;display:inline-flex;align-items:baseline;gap:7px;
  font-family:var(--font-label);font-size:13px;letter-spacing:.06em;
  padding:14px 2px;color:var(--c-muted);
  transition:color .2s var(--ease);
}
.site-nav__link::before{
  content:counter(navidx,decimal-leading-zero);
  font-size:10px;letter-spacing:.08em;color:var(--c-line);
  transition:color .2s var(--ease);
}
.site-nav__link::after{
  content:"";position:absolute;left:0;right:0;bottom:8px;height:2px;
  background:var(--c-orange);transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.site-nav__link:hover{color:var(--c-paper)}
.site-nav__link:hover::before{color:var(--c-blue-soft)}
.site-nav__link[aria-current="page"]{color:var(--c-paper);font-weight:500}
.site-nav__link[aria-current="page"]::before{color:var(--c-green)}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1)}

.nav-toggle{
  display:none;align-items:center;gap:9px;
  font-family:var(--font-label);font-size:12px;letter-spacing:.08em;color:var(--c-paper);
  border:1px solid var(--c-line);border-radius:var(--radius-pill);
  padding:9px 15px;background:rgba(11,21,38,.9);
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--c-green);color:var(--c-green)}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:4px;width:18px}
.nav-toggle__bars span{display:block;height:2px;background:currentColor;transition:transform .26s var(--ease),opacity .2s var(--ease)}
.site-header[data-open] .nav-toggle__bars span:nth-child(1){transform:translateY(6px) 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){transform:translateY(-6px) rotate(-45deg)}
.nav-toggle__label{white-space:nowrap}

/* ---------- 13 页脚 ---------- */
.site-footer{
  position:relative;margin-top:clamp(48px,7vw,110px);
  background:linear-gradient(180deg,rgba(11,21,38,.72),rgba(6,11,20,.98));
  border-top:1px solid var(--c-line);
  color:var(--c-paper);
}
.footer-rail{
  height:12px;
  background-image:repeating-linear-gradient(90deg,var(--c-line) 0 1px,transparent 1px 34px);
  border-bottom:1px solid var(--c-line);
  opacity:.9;
}
.footer-main{
  display:grid;gap:clamp(24px,3vw,48px);
  grid-template-columns:minmax(200px,1fr) minmax(0,2fr) minmax(220px,1.1fr);
  padding-block:clamp(32px,5vw,60px);
}
.footer-brand{font-family:var(--font-display);font-weight:900;font-size:clamp(1.4rem,3vw,2rem);letter-spacing:-.03em}
.footer-closing{color:var(--c-green);font-size:14px;margin-top:8px;letter-spacing:.02em}
.footer-stamp{font-family:var(--font-label);font-size:11.5px;letter-spacing:.1em;color:var(--c-muted);margin-top:14px}
.footer-cols{display:grid;gap:clamp(20px,2.4vw,34px);grid-template-columns:repeat(3,minmax(0,1fr))}
.footer-col__title{
  font-family:var(--font-label);font-size:12px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;
  color:var(--c-blue-soft);padding-bottom:10px;margin-bottom:12px;
  border-bottom:1px solid var(--c-line);
}
.footer-col__list{display:flex;flex-direction:column;gap:9px}
.footer-col__list a{
  font-size:14.5px;color:var(--c-muted);
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.footer-col__list a:hover{color:var(--c-green);padding-left:5px}
.footer-contact__list{display:flex;flex-direction:column;gap:12px;margin-bottom:14px}
.footer-contact__list li{display:flex;gap:10px;align-items:baseline;font-size:14px}
.footer-contact__key{
  flex:0 0 auto;font-family:var(--font-label);font-size:11.5px;letter-spacing:.08em;color:var(--c-muted);
  border:1px solid var(--c-line);border-radius:3px 8px 3px 8px;padding:1px 7px;
}
.footer-contact__val{color:#E4DBCC;word-break:break-word}
.footer-note{font-size:12.5px;line-height:1.7;color:var(--c-muted);border-left:2px solid var(--c-line);padding-left:12px}
.footer-legal{
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;align-items:center;
  padding-block:18px;border-top:1px solid var(--c-line);
}
.footer-legal__text,.footer-legal__year{font-family:var(--font-label);font-size:12px;letter-spacing:.06em;color:var(--c-muted)}

/* ---------- 14 显现动效 ---------- */
[data-js="on"] [data-reveal]{
  opacity:0;transform:translateY(18px);
  transition:opacity .5s var(--ease),transform .62s var(--ease);
  transition-delay:var(--reveal-delay,0ms);
}
[data-js="on"] [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 15 响应式 ---------- */
@media (max-width:1040px){
  .footer-main{grid-template-columns:minmax(0,1fr) minmax(0,1.4fr)}
  .footer-contact{grid-column:1 / -1}
}
@media (max-width:960px){
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:fixed;inset:0 0 0 auto;z-index:90;
    width:min(86vw,380px);
    background:linear-gradient(180deg,#0B1526,#060B14);
    border-left:1px solid var(--c-line);
    padding:96px 24px calc(32px + env(safe-area-inset-bottom,0px));
    transform:translateX(103%);
    transition:transform .32s var(--ease);
    overflow-y:auto;
  }
  .site-header[data-open] .site-nav{transform:none;box-shadow:-30px 0 60px -30px rgba(0,0,0,1)}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0;padding-top:8px}
  .site-nav__link{display:block;padding:15px 4px;font-size:15px;border-bottom:1px solid var(--c-line)}
  .site-nav__link::after{left:4px;right:auto;width:28px;bottom:10px}
  .header-top__inner{padding-block:12px}
  .header-meta{display:none}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:680px){
  .header-top__inner{flex-wrap:wrap;gap:12px}
  .header-top__aside{width:100%;justify-content:space-between}
  .brand__tagline{font-size:11px}
  .footer-main{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer-contact{grid-column:auto}
  .footer-cols{grid-template-columns:minmax(0,1fr)}
  .footer-legal{flex-direction:column;align-items:flex-start}
  .btn{font-size:12.5px;padding:9px 15px}
}

/* ---------- 16 无障碍与动效偏好 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    transition-delay:0ms !important;
  }
  [data-js="on"] [data-reveal]{opacity:1;transform:none}
  .card:hover,.btn:hover{transform:none}
}