:root {
    --theme-primary: #a855f7;
    --theme-title: #f8fafc;
    --theme-text: #cbd5e1;
    --theme-muted: #94a3b8;
}

/* theme: midnight 暗夜霓虹 */
:root{--gp-accent:#a855f7;--gp-accent2:#06b6d4;--gp-bg1:#0b1020;--gp-bg2:#17172b;--gp-dark:#f8fafc;}
body.gp-theme-midnight{background:radial-gradient(circle at 12% 0%,rgba(168,85,247,.22),transparent 300px),radial-gradient(circle at 90% 12%,rgba(6,182,212,.18),transparent 320px),linear-gradient(180deg,#070b16 0%,#101426 55%,#0b1020 100%);color:#e5e7eb;}
body.gp-theme-midnight gp-skybar{background:rgba(8,12,24,.88);border-color:rgba(255,255,255,.08)}
body.gp-theme-midnight gp-navflow a{background:rgba(255,255,255,.06);color:#cbd5e1}
body.gp-theme-midnight .gp-logo{color:#c084fc}.gp-theme-midnight .gp-logo:after{background:rgba(6,182,212,.35)}
body.gp-theme-midnight gp-hero-main,body.gp-theme-midnight gp-hero-side,body.gp-theme-midnight gp-panel,body.gp-theme-midnight gp-sidebox,body.gp-theme-midnight gp-article-shell{background:rgba(17,24,39,.82);border-color:rgba(255,255,255,.10);box-shadow:0 18px 54px rgba(0,0,0,.28)}
body.gp-theme-midnight gp-panel-title{border-color:rgba(255,255,255,.08)}
body.gp-theme-midnight gp-kicker,body.gp-theme-midnight gp-story-meta b,body.gp-theme-midnight gp-article-meta b{background:rgba(168,85,247,.18);color:#d8b4fe}
body.gp-theme-midnight gp-hero-actions a{background:linear-gradient(135deg,#7c3aed,#06b6d4)}
body.gp-theme-midnight a:hover{color:#67e8f9}
body.gp-theme-midnight gp-story-card p,body.gp-theme-midnight gp-sidebox p,body.gp-theme-midnight gp-article-body p{color:#cbd5e1}