/* ===== mmWave Automotive Radar · 雷达控制台暗色主题 ===== */
:root{
  --mrm-bg:#060A12;
  --mrm-bg-2:#0B1322;
  --mrm-panel:#0E1828;
  --mrm-panel-2:#11203a;
  --mrm-line:#1d2c44;
  --mrm-line-2:#2a3a52;
  --mrm-ink:#E8EEF7;
  --mrm-ink-dim:#9fb0c7;
  --mrm-ink-mute:#6f819a;
  --mrm-accent:#2BE0C8;      /* 雷达青 */
  --mrm-accent-2:#FF5C7A;    /* 告警玫红 */
  --mrm-amber:#F2B33D;
  --mrm-glow:rgba(43,224,200,.18);
  --h2-inset:16px;           /* 面包屑与正文 H2 左缘对齐基准 */
  --maxw:1180px;
  --header-h:64px;
  --radius:14px;
  --font:"Segoe UI",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",Roboto,Helvetica,Arial,sans-serif;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;background:
    radial-gradient(1200px 600px at 80% -10%,rgba(43,224,200,.08),transparent 60%),
    radial-gradient(900px 500px at -10% 10%,rgba(255,92,122,.06),transparent 55%),
    var(--mrm-bg);
  color:var(--mrm-ink);font-family:var(--font);font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--mrm-accent);text-decoration:none;}
a:hover{text-decoration:underline;}
img{max-width:100%;}
h1,h2,h3,h4{line-height:1.3;font-weight:700;letter-spacing:.2px;}
.mrm-h1{font-size:30px;margin:0 0 14px;color:#fff;}
.mrm-section-title{font-size:24px;color:#fff;margin:0 0 6px;}
.mrm-section-sub{color:var(--mrm-ink-dim);margin:0 0 22px;max-width:760px;}

/* ===== Header ===== */
.mrm-header{position:sticky;top:0;z-index:50;height:var(--header-h);
  background:rgba(6,10,18,.82);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--mrm-line);}
.mrm-header-inner{max-width:var(--maxw);margin:0 auto;height:100%;padding:0 22px;
  display:flex;align-items:center;gap:18px;}
.mrm-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;}
.mrm-brand:hover{text-decoration:none;}
.mrm-brand-mark{width:22px;height:22px;border-radius:6px;
  background:conic-gradient(from 200deg,var(--mrm-accent),var(--mrm-accent-2),var(--mrm-amber),var(--mrm-accent));
  box-shadow:0 0 14px var(--mrm-glow);}
.mrm-brand-text{font-size:16px;letter-spacing:.3px;}
.mrm-nav{display:flex;gap:6px;margin-left:auto;}
.mrm-nav-item{padding:8px 12px;border-radius:9px;color:var(--mrm-ink-dim);font-size:14.5px;transition:.15s;}
.mrm-nav-item:hover{color:#fff;background:var(--mrm-panel);text-decoration:none;}
.mrm-nav-toggle{display:none;margin-left:auto;width:42px;height:38px;border:1px solid var(--mrm-line);
  background:var(--mrm-panel);border-radius:9px;flex-direction:column;gap:4px;justify-content:center;align-items:center;cursor:pointer;}
.mrm-nav-toggle span{display:block;width:18px;height:2px;background:var(--mrm-ink);border-radius:2px;}

/* ===== Layout ===== */
.mrm-layout{max-width:var(--maxw);margin:0 auto;padding:22px 22px 40px;}
.mrm-crumb{padding-left:var(--h2-inset);margin:6px 0 18px;font-size:13.5px;color:var(--mrm-ink-mute);}
.mrm-crumb-list{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:4px;margin:0;padding:0;}
.mrm-crumb-list li{display:flex;align-items:center;gap:4px;}
.mrm-crumb-list a{color:var(--mrm-ink-dim);}
.mrm-crumb-list a:hover{color:var(--mrm-accent);}
.mrm-crumb-sep{color:var(--mrm-line-2);}
.mrm-layout-grid{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:34px;align-items:start;}
.mrm-content-main{padding-left:var(--h2-inset);min-width:0;}

/* ===== Article body ===== */
.mrm-summary{background:linear-gradient(180deg,var(--mrm-panel),var(--mrm-bg-2));
  border:1px solid var(--mrm-line);border-left:3px solid var(--mrm-accent);
  border-radius:10px;padding:14px 18px;color:var(--mrm-ink-dim);margin-bottom:14px;}
.mrm-keywords{font-size:13px;color:var(--mrm-ink-mute);margin-bottom:6px;}
.mrm-update{font-size:12.5px;color:var(--mrm-ink-mute);margin-bottom:16px;}
.mrm-body{font-size:16px;color:var(--mrm-ink);}
.mrm-body h2{font-size:21px;color:#fff;margin:30px 0 12px;padding-bottom:8px;
  border-bottom:1px solid var(--mrm-line);scroll-margin-top:80px;}
.mrm-body h3{font-size:17px;color:#dff7f1;margin:22px 0 10px;scroll-margin-top:80px;}
.mrm-body p{margin:0 0 14px;}
.mrm-body ul,.mrm-body ol{margin:0 0 16px;padding-left:22px;}
.mrm-body li{margin:6px 0;}
.mrm-body strong{color:#fff;font-weight:600;}
.mrm-body blockquote{margin:16px 0;padding:12px 16px;border-left:3px solid var(--mrm-amber);
  background:var(--mrm-panel);border-radius:0 10px 10px 0;color:var(--mrm-ink-dim);}
.mrm-body blockquote p{margin:0;}
.mrm-concl{margin:18px 0;padding:14px 18px;border-radius:10px;border:1px solid var(--mrm-line-2);
  background:linear-gradient(180deg,rgba(43,224,200,.07),transparent);}
.mrm-case{margin:18px 0;padding:12px 16px;border-radius:10px;border:1px solid rgba(242,179,61,.4);
  background:rgba(242,179,61,.07);font-size:14.5px;color:var(--mrm-ink-dim);}
.mrm-case-tag{display:inline-block;font-weight:700;color:var(--mrm-amber);margin-right:8px;}

/* ===== Tables (M26: 覆盖正文全部 table) ===== */
.mrm-content-main table,table.mrm-spec{border-collapse:collapse;width:100%;margin:18px 0;
  font-size:14.5px;background:var(--mrm-panel);border-radius:10px;overflow:hidden;}
.mrm-content-main table th,.mrm-content-main table td,
table.mrm-spec th,table.mrm-spec td{border:1px solid var(--mrm-line-2);padding:9px 12px;text-align:left;
  color:var(--mrm-ink);vertical-align:top;}
.mrm-content-main table th,table.mrm-spec th{background:#13314a;color:#fff;font-weight:600;}
.mrm-content-main table tr:nth-child(even) td,table.mrm-spec tr:nth-child(even) td{background:rgba(255,255,255,.02);}

/* ===== FAQ (bare details) ===== */
.mrm-faq{margin:26px 0 8px;}
.mrm-faq-title{font-size:20px;color:#fff;margin:0 0 12px;}
.mrm-faq-item{border:1px solid var(--mrm-line);border-radius:10px;margin-bottom:10px;background:var(--mrm-bg-2);overflow:hidden;}
.mrm-faq-item>summary{cursor:pointer;padding:13px 16px;font-weight:600;color:#eafcf8;list-style:none;
  display:flex;justify-content:space-between;align-items:center;}
.mrm-faq-item>summary::-webkit-details-marker{display:none;}
.mrm-faq-item>summary::after{content:"+";color:var(--mrm-accent);font-size:18px;}
.mrm-faq-item[open]>summary::after{content:"−";}
.mrm-faq-a{padding:0 16px 14px;color:var(--mrm-ink-dim);}
.mrm-faq-a p{margin:8px 0;}

/* ===== Related ===== */
.mrm-related{margin-top:26px;padding-top:18px;border-top:1px solid var(--mrm-line);}
.mrm-related-title{font-size:19px;color:#fff;margin:0 0 12px;}
.mrm-related-list{list-style:none;margin:0;padding:0;}
.mrm-related-list li{padding:8px 0;border-bottom:1px dashed var(--mrm-line);}
.mrm-related-why{color:var(--mrm-ink-mute);font-size:13.5px;}

/* ===== TOC ===== */
.mrm-toc-aside{position:sticky;top:80px;max-height:calc(100vh - 100px);overflow-y:auto;}
.mrm-toc-panel{border:1px solid var(--mrm-line);border-radius:12px;background:var(--mrm-panel);padding:6px 4px;}
.mrm-toc-summary{cursor:pointer;padding:10px 14px;font-weight:600;color:#eafcf8;list-style:none;
  display:flex;align-items:center;gap:6px;}
.mrm-toc-summary::-webkit-details-marker{display:none;}
.mrm-toc-summary::after{content:"▾";margin-left:auto;color:var(--mrm-accent);}
.mrm-toc-panel[open] .mrm-toc-summary::after{content:"▴";}
.mrm-toc-list{list-style:none;margin:4px 0 8px;padding:0 14px;}
.mrm-toc-li{margin:4px 0;font-size:13.5px;}
.mrm-toc-li a{color:var(--mrm-ink-dim);}
.mrm-toc-li a:hover{color:var(--mrm-accent);}

/* ===== List / Category ===== */
.mrm-list-layout .mrm-layout-grid{grid-template-columns:240px minmax(0,1fr);}
.mrm-cat-side{min-width:0;}
.mrm-cat-panel{border:1px solid var(--mrm-line);border-radius:12px;background:var(--mrm-panel);padding:4px 0;margin-bottom:14px;}
.mrm-cat-summary{cursor:pointer;padding:12px 16px;font-weight:600;color:#eafcf8;list-style:none;display:flex;align-items:center;}
.mrm-cat-summary::-webkit-details-marker{display:none;}
.mrm-cat-summary::after{content:"▾";margin-left:auto;color:var(--mrm-accent);}
.mrm-cat-panel[open] .mrm-cat-summary::after{content:"▴";}
.mrm-category-list{list-style:none;margin:2px 0 8px;padding:0 10px;}
.mrm-category-list li{margin:2px 0;}
.mrm-category-list a{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:8px 12px;border-radius:8px;color:var(--mrm-ink-dim);font-size:14.5px;}
.mrm-category-list a:hover,.mrm-category-list a.mrm-cat-active{background:var(--mrm-panel-2);color:#fff;text-decoration:none;}
.mrm-cat-count{font-size:12px;color:var(--mrm-ink-mute);background:var(--mrm-bg-2);border-radius:20px;padding:1px 9px;}
.mrm-cat-content{min-width:0;}
.mrm-list-h1{font-size:28px;color:#fff;margin:0 0 8px;}
.mrm-list-intro{color:var(--mrm-ink-dim);margin:0 0 22px;}
.mrm-card-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;}
.mrm-card{border:1px solid var(--mrm-line);border-radius:12px;background:var(--mrm-panel);transition:.15s;overflow:hidden;}
.mrm-card:hover{border-color:var(--mrm-accent);transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.35);}
.mrm-card-link{display:block;padding:16px 18px;color:inherit;}
.mrm-card-link:hover{text-decoration:none;}
.mrm-card-title{font-size:17px;color:#fff;margin:0 0 8px;}
.mrm-card-desc{font-size:13.5px;color:var(--mrm-ink-dim);margin:0 0 10px;}
.mrm-card-meta{font-size:12px;color:var(--mrm-ink-mute);border:1px solid var(--mrm-line);border-radius:20px;padding:2px 10px;}

/* ===== Pages ===== */
.mrm-page-wrap{--h2-inset:48px;}
.mrm-page-main{padding-left:var(--h2-inset);background:var(--mrm-panel);border:1px solid var(--mrm-line);
  border-radius:16px;padding:32px 48px;margin-top:6px;}
.mrm-page-main h2{font-size:21px;color:#fff;margin:28px 0 12px;scroll-margin-top:80px;}
.mrm-page-main h3{font-size:17px;color:#dff7f1;margin:20px 0 10px;}
.mrm-page-main p{color:var(--mrm-ink);margin:0 0 14px;}
.mrm-page-main ul,.mrm-page-main ol{margin:0 0 16px;padding-left:22px;color:var(--mrm-ink-dim);}
.mrm-404{text-align:center;}

/* ===== Home ===== */
.mrm-hero{position:relative;padding:70px 22px 50px;max-width:var(--maxw);margin:0 auto;}
.mrm-hero-inner{max-width:840px;}
.mrm-hero-kicker{color:var(--mrm-accent);font-weight:600;letter-spacing:1px;font-size:13px;margin:0 0 14px;text-transform:uppercase;}
.mrm-hero-title{font-size:42px;line-height:1.2;color:#fff;margin:0 0 18px;}
.mrm-hero-sub{font-size:17px;color:var(--mrm-ink-dim);margin:0 0 26px;max-width:720px;}
.mrm-hero-actions{display:flex;gap:14px;flex-wrap:wrap;}
.mrm-btn{display:inline-block;padding:12px 22px;border-radius:10px;font-weight:600;font-size:15px;transition:.15s;}
.mrm-btn-primary{background:var(--mrm-accent);color:#04201c;border:1px solid var(--mrm-accent);}
.mrm-btn-primary:hover{background:#4ff0da;text-decoration:none;}
.mrm-btn-ghost{background:transparent;color:var(--mrm-ink);border:1px solid var(--mrm-line-2);}
.mrm-btn-ghost:hover{border-color:var(--mrm-accent);color:#fff;text-decoration:none;}
.mrm-stats{max-width:var(--maxw);margin:0 auto;padding:0 22px 30px;}
.mrm-stats-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;}
.mrm-stat{background:var(--mrm-panel);border:1px solid var(--mrm-line);border-radius:14px;padding:20px;display:flex;flex-direction:column;}
.mrm-stat-num{font-size:30px;font-weight:800;color:var(--mrm-accent);font-family:var(--mono);line-height:1;}
.mrm-stat-unit{font-size:13px;color:var(--mrm-ink-mute);margin-top:4px;}
.mrm-stat-label{font-size:13px;color:var(--mrm-ink-dim);margin-top:10px;}
.mrm-section-inner{max-width:var(--maxw);margin:0 auto;padding:36px 22px;}
.mrm-prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.mrm-prod-card{display:block;background:var(--mrm-panel);border:1px solid var(--mrm-line);border-radius:14px;padding:22px;transition:.15s;}
.mrm-prod-card:hover{border-color:var(--mrm-accent);transform:translateY(-3px);text-decoration:none;box-shadow:0 10px 30px rgba(0,0,0,.35);}
.mrm-prod-card-title{font-size:18px;color:#fff;margin:0 0 10px;}
.mrm-prod-card-desc{font-size:14px;color:var(--mrm-ink-dim);margin:0 0 14px;min-height:62px;}
.mrm-prod-card-go{color:var(--mrm-accent);font-weight:600;font-size:14px;}
.mrm-view-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
.mrm-view-card{display:flex;flex-direction:column;gap:6px;background:var(--mrm-panel);border:1px solid var(--mrm-line);border-radius:14px;padding:18px 20px;transition:.15s;}
.mrm-view-card:hover{border-color:var(--mrm-amber);text-decoration:none;}
.mrm-view-name{font-size:17px;color:#fff;font-weight:600;}
.mrm-view-desc{font-size:13.5px;color:var(--mrm-ink-dim);}
.mrm-scene-caps{display:flex;flex-wrap:wrap;gap:12px;}
.mrm-scene-cap{background:var(--mrm-panel-2);border:1px solid var(--mrm-line);border-radius:30px;padding:10px 18px;color:var(--mrm-ink);font-size:14.5px;}
.mrm-cta{max-width:var(--maxw);margin:10px auto 40px;padding:0 22px;}
.mrm-cta-inner{background:linear-gradient(120deg,rgba(43,224,200,.12),rgba(255,92,122,.10));
  border:1px solid var(--mrm-line-2);border-radius:18px;padding:36px;text-align:center;}
.mrm-cta-title{font-size:24px;color:#fff;margin:0 0 10px;}
.mrm-cta-sub{color:var(--mrm-ink-dim);margin:0 0 22px;}

/* ===== Footer ===== */
.mrm-footer{margin-top:30px;border-top:1px solid var(--mrm-line);background:var(--mrm-bg-2);}
.mrm-footer-inner{max-width:var(--maxw);margin:0 auto;padding:40px 22px 26px;}
.mrm-foot-cols{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.mrm-foot-title{font-size:15px;color:#fff;margin:0 0 14px;font-weight:600;}
.mrm-footer ul{list-style:none;margin:0;padding:0;}
.mrm-footer li{margin:7px 0;}
.mrm-footer a{color:var(--mrm-ink-dim);font-size:14px;}
.mrm-footer a:hover{color:var(--mrm-accent);}
.mrm-foot-about p{font-size:13.5px;color:var(--mrm-ink-mute);margin:0 0 8px;}
.mrm-foot-meta{color:var(--mrm-ink-mute) !important;font-size:12px !important;}
.mrm-footer-bar{margin-top:26px;padding-top:18px;border-top:1px solid var(--mrm-line);
  display:flex;gap:10px;flex-wrap:wrap;color:var(--mrm-ink-mute);font-size:13px;}

/* ===== Float capsule ===== */
.mrm-float{position:fixed;right:18px;top:50%;transform:translateY(-50%);z-index:60;
  display:flex;flex-direction:column;gap:10px;}
.mrm-float-btn{display:flex;align-items:center;gap:8px;
  background:linear-gradient(135deg,var(--mrm-accent),#19b8a4);color:#04201c;border:none;
  border-radius:30px;padding:9px 14px;cursor:pointer;font-weight:600;font-size:13.5px;
  box-shadow:0 6px 20px rgba(0,0,0,.4);transition:.15s;white-space:nowrap;}
.mrm-float-btn:hover{transform:scale(1.04);background:linear-gradient(135deg,#4ff0da,#22c7b1);}
.mrm-float-ico{font-size:16px;line-height:1;}
.mrm-card-mask{position:fixed;inset:0;z-index:80;background:rgba(2,5,10,.82);display:flex;
  align-items:center;justify-content:center;padding:20px;}
.mrm-card-mask[hidden]{display:none;}
.mrm-card-box{position:relative;max-width:92vw;max-height:92vh;display:flex;align-items:center;justify-content:center;}
.mrm-card-img{max-width:100%;max-height:92vh;width:auto;height:auto;border-radius:12px;box-shadow:0 10px 40px rgba(0,0,0,.6);}
.mrm-card-close{position:absolute;top:-14px;right:-14px;width:38px;height:38px;border-radius:50%;
  background:var(--mrm-panel);color:#fff;border:1px solid var(--mrm-line-2);font-size:20px;cursor:pointer;}

/* ===== Archive ===== */
.mrm-archive-block{margin:24px 0;}
.mrm-archive-h2{font-size:22px;color:#fff;margin:0 0 14px;}
.mrm-archive-cat{font-size:17px;color:var(--mrm-accent);margin:18px 0 8px;}
.mrm-archive-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:8px 22px;}
.mrm-archive-list li{padding:6px 0;border-bottom:1px dashed var(--mrm-line);}
.mrm-archive-list a{color:var(--mrm-ink-dim);font-size:14.5px;}
.mrm-archive-list a:hover{color:var(--mrm-accent);}

/* ===== Responsive (M25: 原生 details 折叠，禁止 display:none 隐藏导航) ===== */
@media (max-width:1024px){
  .mrm-layout-grid{grid-template-columns:1fr;}
  .mrm-list-layout .mrm-layout-grid{grid-template-columns:1fr;}
  .mrm-toc-aside{position:static;max-height:none;}
  .mrm-nav{display:none;position:absolute;top:var(--header-h);left:0;right:0;flex-direction:column;
    background:var(--mrm-bg-2);border-bottom:1px solid var(--mrm-line);padding:10px;gap:2px;}
  .mrm-nav.mrm-nav-open{display:flex;}
  .mrm-nav-toggle{display:flex;}
  .mrm-nav-item{padding:12px 14px;}
  .mrm-stats-inner{grid-template-columns:repeat(2,1fr);}
  .mrm-prod-grid,.mrm-view-grid{grid-template-columns:repeat(2,1fr);}
  .mrm-foot-cols{grid-template-columns:repeat(2,1fr);}
  .mrm-hero-title{font-size:32px;}
  .mrm-page-main{padding:24px 22px;}
  .mrm-page-wrap{--h2-inset:22px;}
}
@media (max-width:600px){
  .mrm-prod-grid,.mrm-view-grid,.mrm-stats-inner,.mrm-foot-cols{grid-template-columns:1fr;}
  .mrm-hero-title{font-size:27px;}
  .mrm-float-btn{font-size:12px;padding:8px 11px;}
}