/* 链隧 ChainTunnel · 设计系统 · 亮色等距能量隧道
   标题 Unbounded / 正文 Noto Sans SC / mono Red Hat Mono */

:root{
  --bg:#E9E7F3; --bg2:#E0DDEF; --paper:#fff;
  --ink:#15122a; --ink2:#574f72; --ink3:#7e7699; --hair:#CCC5E0;
  --lime:#21C26E; --limed:#147a44; --limeL:#8AF0BC;
  --violet:#6E4AE8; --violetd:#3a2785;
  --blue:#2C6FE0; --blued:#1f4fa8;
  --teal:#12B4A6; --teald:#0c7a70;
  --coral:#FF5630; --corald:#c0341c;
  --amber:#F0B90B;
  --maxw:1320px; --gut:40px;
  --font-disp:"Unbounded","Noto Sans SC",system-ui,sans-serif;
  --font-body:"Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"Red Hat Mono",ui-monospace,"Cascadia Mono",monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--font-body);font-size:16px;line-height:1.72;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
.mono{font-family:var(--font-mono)}
svg text{font-family:var(--font-mono)}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--gut)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
h1,h2,h3,h4{font-family:var(--font-disp);font-weight:800;line-height:1.12;letter-spacing:-.4px}

/* nav */
.nav{display:flex;align-items:center;justify-content:space-between;height:72px;position:relative;z-index:6}
.brand{display:flex;align-items:center;gap:11px}
.brand .cn{font-family:var(--font-disp);font-weight:800;font-size:21px;letter-spacing:.5px}
.brand .en{font-family:var(--font-disp);font-weight:500;font-size:11.5px;letter-spacing:2px;color:var(--ink2);text-transform:uppercase}
.navlinks{display:flex;gap:26px;font-size:15px;font-weight:500;color:var(--ink2)}
.navlinks a:hover{color:var(--ink)}
.navlinks a.cur{color:var(--ink)}
.tag{font-family:var(--font-mono);font-size:11px;letter-spacing:1.5px;color:var(--ink2);border:1px solid var(--hair);padding:5px 10px;text-transform:uppercase;white-space:nowrap}
.navtoggle{display:none}

/* hero */
.hero{position:relative;min-height:700px;overflow:hidden}
.scene{position:absolute;inset:0;width:100%;height:100%}
.head{position:absolute;left:max(var(--gut),calc(50vw - 660px + var(--gut)));top:112px;z-index:5;max-width:480px}
.kick{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:12px;letter-spacing:2.5px;text-transform:uppercase;color:var(--violet);background:#fff;border:1px solid var(--hair);padding:6px 13px;border-radius:30px;margin-bottom:18px}
.kick i{width:8px;height:8px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 4px rgba(33,194,110,.25)}
.head .hh{font-family:var(--font-disp);font-weight:800;color:var(--ink);font-size:50px;line-height:1.06;letter-spacing:-1.5px}
.head .hh .hl{color:var(--lime)}.head .hh .hl2{color:var(--violet)}.head .hh .out{color:transparent;-webkit-text-stroke:2px var(--ink)}
.head p{font-size:15.5px;color:var(--ink2);margin-top:14px;max-width:410px}

/* capsule invite (三件套) */
.capsule{position:absolute;left:max(var(--gut),calc(50vw - 660px + var(--gut)));top:438px;z-index:5;display:flex;align-items:stretch;width:452px;max-width:calc(100vw - 80px);min-height:124px;border-radius:64px;box-shadow:0 0 0 6px rgba(33,194,110,.16)}
.cap-cap{width:60px;flex:none;background:var(--lime);border-radius:62px 0 0 62px;border:3px solid var(--ink);border-right:0;display:flex;align-items:center;justify-content:center}
.cap-cap b{font-family:var(--font-disp);font-weight:700;font-size:19px;color:#073018;transform:rotate(-90deg);letter-spacing:1px;white-space:nowrap}
.cap-body{flex:1;background:#fff;border:3px solid var(--ink);border-left:0;border-right:0;padding:11px 18px;display:flex;flex-direction:column;justify-content:center;min-width:0}
.cl{font-family:var(--font-mono);font-size:10.5px;letter-spacing:2px;text-transform:uppercase;color:var(--ink2)}
.cc{font-family:var(--font-mono);font-weight:500;font-size:32px;letter-spacing:3px;color:var(--ink);display:flex;align-items:center;gap:10px;line-height:1.1}
.cc .cp{font-family:var(--font-body);font-size:12px;font-weight:700;background:var(--ink);color:#fff;border:0;border-radius:5px;padding:5px 10px;cursor:pointer;letter-spacing:0}
.cc .cp:hover{background:var(--violetd)}
.cb{font-size:12px;color:var(--ink2);margin-top:3px}.cb b{color:var(--limed);font-weight:700}
.charge{height:6px;background:var(--bg2);border-radius:4px;margin-top:8px;overflow:hidden}
.charge i{display:block;height:100%;width:60%;background:var(--lime);border-radius:4px;animation:chg 3.4s ease-in-out infinite}
.cap-end{width:120px;flex:none;background:var(--ink);border-radius:0 62px 62px 0;border:3px solid var(--ink);display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;text-align:center;gap:2px;overflow:hidden;position:relative}
.cap-end:hover{background:#241d44}
.cap-end .big{font-family:var(--font-disp);font-weight:700;font-size:15px}
.cap-end .sm{font-family:var(--font-mono);font-size:10px;letter-spacing:1px;color:var(--limeL)}
.capfine{position:absolute;left:max(var(--gut),calc(50vw - 660px + var(--gut)));top:582px;z-index:5;font-size:10.5px;color:var(--ink2);max-width:452px}
.heronote{position:absolute;right:max(var(--gut),calc(50vw - 660px + var(--gut)));bottom:22px;font-family:var(--font-mono);font-size:12px;color:var(--ink2);text-align:right;z-index:4}
.heronote b{color:var(--coral)}

/* risk strip */
.strip{background:var(--ink);color:#cfc9e6;position:relative;overflow:hidden}
.strip .wrap{display:flex;align-items:center;gap:20px;padding:13px var(--gut);font-size:13px;position:relative;z-index:2}
.strip b{color:var(--coral);font-weight:700}.strip .mono{color:#8d84b3}
.strip .pipe-bg{position:absolute;left:0;right:0;top:50%;height:2px;background:repeating-linear-gradient(90deg,#2a2350 0 14px,transparent 14px 30px);animation:slide 1.4s linear infinite;opacity:.6}

/* section scaffolding + energy spine */
.flowbody{position:relative}
.sec{padding:72px 0 64px;position:relative}
.spine{position:absolute;left:max(var(--gut),calc(50vw - 660px + var(--gut)));top:0;bottom:-64px;width:3px;background:repeating-linear-gradient(180deg,var(--hair) 0 9px,transparent 9px 20px);z-index:0}
.sec>.wrap{position:relative;z-index:1;padding-left:96px}
.seclabel{display:flex;align-items:center;gap:14px;margin-bottom:16px;margin-left:-96px}
.rn{width:46px;height:46px;flex:none}
.seclabel .lab{font-family:var(--font-mono);font-size:12px;letter-spacing:2.5px;text-transform:uppercase;color:var(--violet)}
.sectitle{font-size:33px;letter-spacing:-.8px;line-height:1.14}
.sectitle .hl{color:var(--lime)}.sectitle .cr{color:var(--coral)}
.seclede{color:var(--ink2);font-size:15px;margin-top:9px;max-width:580px}

/* console rig */
.rig{margin-top:28px;display:grid;grid-template-columns:1.12fr 1fr;background:var(--ink);border-radius:22px;overflow:hidden;border:3px solid var(--ink);box-shadow:0 0 0 6px rgba(110,74,232,.10)}
.rig-in{padding:28px 30px;color:#e9e6f6}
.rig-in h3{font-family:var(--font-disp);font-weight:700;font-size:15px;color:#fff;margin-bottom:16px;display:flex;align-items:center;gap:9px}
.rig-in h3 b{width:9px;height:9px;border-radius:50%;background:var(--violet);box-shadow:0 0 0 4px rgba(110,74,232,.3)}
.field{margin-bottom:14px}
.field label{font-family:var(--font-mono);font-size:11px;letter-spacing:1.5px;text-transform:uppercase;color:#9b92c2;display:block;margin-bottom:6px}
.sel{display:flex;align-items:center;justify-content:space-between;background:#241d44;border:1px solid #3a3168;border-radius:10px;padding:11px 15px;font-size:15px;color:#fff;width:100%;cursor:pointer}
.sel .v{color:var(--limeL);font-weight:700}
.rig-out{background:#120f24;padding:28px 30px;position:relative;overflow:hidden}
.rig-out .tubeline{position:absolute;left:0;right:0;top:112px;height:30px;background:#0c0a1c}
.rig-out .tubeline:before{content:"";position:absolute;inset:9px 0;background:repeating-linear-gradient(90deg,var(--lime) 0 12px,#0c3a20 12px 26px);animation:slide 1s linear infinite;opacity:.9}
.rig-out .ol{font-family:var(--font-mono);font-size:11px;letter-spacing:1.5px;color:#9b92c2;text-transform:uppercase;position:relative;z-index:2}
.rig-out .pick{display:flex;align-items:center;gap:12px;margin:10px 0 80px;position:relative;z-index:2}
.rig-out .pick .dotg{width:15px;height:15px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 5px rgba(33,194,110,.28)}
.rig-out .pick b{font-family:var(--font-disp);font-weight:700;font-size:24px;color:#fff}
.rig-out .meta{display:flex;gap:22px;margin-top:8px;position:relative;z-index:2}
.rig-out .meta div{font-size:13px;color:#cfc9e6}.rig-out .meta div b{display:block;font-family:var(--font-mono);font-size:17px;color:var(--limeL);font-weight:500}
.rig-out .disc{font-size:10.5px;color:#736a9b;margin-top:16px;border-top:1px solid #2a2350;padding-top:11px;position:relative;z-index:2}

/* pipes (arrival lanes) */
.pipes{margin-top:26px;display:flex;flex-direction:column;gap:14px}
.pipe{display:grid;grid-template-columns:168px 1fr 132px;align-items:center;gap:20px}
.pipe .nm{display:flex;align-items:center;gap:10px;font-weight:700;font-size:15px}
.pipe .nm i{width:13px;height:13px;border-radius:4px;flex:none}
.tube{height:24px;border-radius:14px;background:var(--bg2);border:2px solid var(--ink);position:relative;overflow:visible}
.tube .fill{position:absolute;left:0;top:0;bottom:0;border-radius:11px 0 0 11px;overflow:hidden}
.tube .fill:before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(90deg,rgba(255,255,255,.45) 0 8px,transparent 8px 22px);animation:slide 1s linear infinite}
.tube .cap{position:absolute;top:-7px;width:34px;height:34px;transform:translateX(-50%)}
.pipe .rt{font-family:var(--font-mono);font-size:13px;color:var(--ink2);text-align:right}
.pipes-disc{font-size:11.5px;color:var(--ink2);margin-top:14px}

/* decision tree */
.tree{margin-top:24px;background:#fff;border:2px solid var(--ink);border-radius:20px;padding:10px 6px;overflow-x:auto}
.tree svg{width:100%;min-width:760px;height:auto;display:block}

/* tools manifold */
.manifold{margin-top:26px;background:var(--ink);border-radius:20px;border:3px solid var(--ink);overflow:hidden;box-shadow:0 0 0 6px rgba(33,194,110,.08)}
.port{display:grid;grid-template-columns:70px 1fr auto;align-items:center;gap:18px;padding:17px 24px;border-bottom:1px solid #2a2350;color:#e9e6f6}
.port:last-child{border-bottom:0}.port:hover{background:#1d1838}
.port .pg{display:flex;align-items:center}
.port .pg .o{width:18px;height:18px;border-radius:50%;border:3px solid var(--lime)}
.port .pg .s{width:24px;height:4px;background:#2a2350}
.port .id{font-family:var(--font-mono);font-size:12px;color:var(--limeL)}
.port .tt{font-weight:700;font-size:15.5px;color:#fff}.port .td{font-size:12.5px;color:#9b92c2;margin-top:1px}
.port .go{font-family:var(--font-mono);font-size:13px;color:#9b92c2;white-space:nowrap}.port .go b{color:var(--lime)}

/* article manifest */
.manifest{margin-top:26px;position:relative}
.manifest:before{content:"";position:absolute;left:25px;top:14px;bottom:14px;width:3px;background:repeating-linear-gradient(180deg,var(--violet) 0 8px,transparent 8px 18px);opacity:.5}
.entry{display:grid;grid-template-columns:54px 1fr 118px;gap:22px;align-items:center;padding:18px 6px;border-bottom:1px solid var(--hair);position:relative}
.entry:hover .at{color:var(--violetd)}
.entry .pill{width:54px;height:30px;border-radius:18px;border:2.5px solid var(--ink);background:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-size:11px;color:var(--violetd);z-index:1}
.entry.big .pill{background:var(--lime);border-color:var(--ink);color:#073018;font-weight:700}
.entry .at{font-family:var(--font-disp);font-weight:700;font-size:18px;letter-spacing:-.3px}
.entry.big .at{font-size:24px}
.entry .ad{font-size:13px;color:var(--ink2);margin-top:5px;max-width:660px}
.entry .tagm{font-family:var(--font-mono);font-size:11px;color:var(--ink2);text-align:right}.entry .tagm b{color:var(--limed)}

/* trust band */
.trust{background:var(--bg2);border-top:1px solid var(--hair);border-bottom:1px solid var(--hair)}
.trust .wrap{display:flex;flex-wrap:wrap;gap:34px;padding:26px var(--gut);font-size:13.5px;color:var(--ink2)}
.trust b{color:var(--ink);font-weight:700;display:block;font-family:var(--font-mono);font-size:11px;letter-spacing:1px;text-transform:uppercase;margin-bottom:3px}

/* footer */
.ftr{background:var(--ink);color:#b7afd6;padding:0 0 30px;position:relative;overflow:hidden}
.ftr .pipetop{height:70px;position:relative}
.ftr .pipetop svg{position:absolute;inset:0;width:100%;height:100%}
.ftr .cols{display:grid;grid-template-columns:1.4fr repeat(5,1fr);gap:26px;padding-top:14px}
.ftr h4{font-family:var(--font-mono);font-size:11px;letter-spacing:1.5px;text-transform:uppercase;color:#7a719f;margin-bottom:14px}
.ftr a{display:block;color:#c8c1e4;font-size:13.5px;padding:4px 0}
.ftr a:hover{color:#fff}
.ftr .fb{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.ftr .fb .cn{font-family:var(--font-disp);font-weight:800;font-size:19px;color:#fff}
.ftr .fnote{font-size:12px;color:#857ba9;max-width:240px;line-height:1.6}
.ftr .bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;border-top:1px solid #2a2350;margin-top:34px;padding-top:20px;font-size:12px;color:#7a719f}

/* ===== article page ===== */
.subhero{padding:44px 0 8px;position:relative}
.crumb{font-family:var(--font-mono);font-size:12px;color:var(--ink2);letter-spacing:.5px}
.crumb a:hover{color:var(--ink)}
.artwrap{max-width:780px;margin:0 auto;padding:0 var(--gut)}
.arthead h1{font-size:38px;line-height:1.14;margin:14px 0 10px;letter-spacing:-1px}
.artmeta{font-family:var(--font-mono);font-size:12.5px;color:var(--ink2);display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.artmeta .dot{width:5px;height:5px;border-radius:50%;background:var(--violet)}
.article-cover{margin:26px auto;border:2px solid var(--ink);border-radius:16px;overflow:hidden;background:var(--bg2)}
.prose{font-size:17px;line-height:1.82;color:#241f3a}
.prose h2{font-size:26px;margin:42px 0 14px;letter-spacing:-.5px;scroll-margin-top:80px}
.prose h3{font-size:20px;margin:28px 0 10px}
.prose p{margin:14px 0}
.prose a{color:var(--violetd);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1.5px}
.prose ul,.prose ol{margin:14px 0 14px 22px}.prose li{margin:7px 0}
.prose strong{font-weight:700}
.toc{background:var(--paper);border:1.5px solid var(--hair);border-radius:14px;padding:18px 22px;margin:24px 0}
.toc h4{font-family:var(--font-mono);font-size:11px;letter-spacing:1.5px;text-transform:uppercase;color:var(--ink2);margin-bottom:10px}
.toc ol{margin:0 0 0 18px}.toc li{margin:5px 0;font-size:14.5px}.toc a{color:var(--ink)}.toc a:hover{color:var(--violetd)}
.callout{border:2px solid var(--ink);border-left-width:8px;border-radius:0 12px 12px 0;padding:16px 20px;margin:22px 0;background:var(--paper)}
.callout.warn{border-color:var(--coral)}.callout.warn b{color:var(--corald)}
.callout.tip{border-color:var(--lime)}.callout.tip b{color:var(--limed)}
.callout .h{font-family:var(--font-mono);font-size:11px;letter-spacing:1.5px;text-transform:uppercase;margin-bottom:6px}
.faq{margin:30px 0}
.faq details{border-bottom:1px solid var(--hair);padding:14px 0}
.faq summary{font-weight:700;font-size:17px;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";font-family:var(--font-mono);color:var(--violet)}
.faq details[open] summary:after{content:"–"}
.faq p{margin-top:10px;color:#3a3357}
.tablewrap{overflow-x:auto;margin:22px 0}
.dtable{width:100%;border-collapse:collapse;font-size:14.5px;min-width:520px}
.dtable th,.dtable td{border:1px solid var(--hair);padding:10px 12px;text-align:left}
.dtable th{background:var(--bg2);font-family:var(--font-mono);font-size:12px;text-transform:uppercase;letter-spacing:.5px}
.cta-inline{display:flex;flex-wrap:wrap;align-items:center;gap:14px;background:var(--ink);color:#fff;border-radius:16px;padding:20px 24px;margin:30px 0}
.cta-inline .code{font-family:var(--font-mono);font-size:22px;letter-spacing:2px;color:var(--limeL)}
.cta-inline .btn{margin-left:auto;background:var(--lime);color:#073018;font-weight:800;padding:12px 20px;border-radius:10px;font-size:15px}
.cta-inline .btn:hover{background:var(--limeL)}
.authorbox{display:flex;gap:16px;align-items:flex-start;border:1.5px solid var(--hair);border-radius:14px;padding:18px 20px;margin:36px 0;background:var(--paper)}
.authorbox .ab-t b{font-family:var(--font-disp)}
.relart{margin:40px 0}
.relart h3{font-size:18px;margin-bottom:12px}
.relart a{display:block;padding:10px 0;border-bottom:1px solid var(--hair);font-weight:500}
.relart a:hover{color:var(--violetd)}

/* ===== tool page ===== */
.toolpanel{background:var(--paper);border:2px solid var(--ink);border-radius:20px;padding:26px 28px;margin:24px 0;box-shadow:0 0 0 6px rgba(110,74,232,.08)}
.toolpanel label{font-family:var(--font-mono);font-size:11px;letter-spacing:1.5px;text-transform:uppercase;color:var(--ink2);display:block;margin:14px 0 6px}
.toolpanel select,.toolpanel input{width:100%;font-family:var(--font-body);font-size:16px;padding:12px 14px;border:1.5px solid var(--hair);border-radius:10px;background:#fff;color:var(--ink)}
.toolpanel select:focus,.toolpanel input:focus{outline:none;border-color:var(--violet);box-shadow:0 0 0 3px rgba(110,74,232,.18)}
.toolout{margin-top:20px;background:var(--ink);color:#fff;border-radius:14px;padding:22px 24px}
.toolout .big{font-family:var(--font-disp);font-weight:700;font-size:24px;color:var(--limeL)}
.toolnote{font-size:12px;color:var(--ink2);margin-top:10px}

/* ===== /go disclosure ===== */
.go-wrap{max-width:560px;margin:60px auto;padding:0 var(--gut);text-align:center}
.go-card{background:var(--paper);border:2px solid var(--ink);border-radius:20px;padding:34px 30px;box-shadow:0 0 0 6px rgba(33,194,110,.12)}
.go-card h1{font-size:26px;margin-bottom:6px}
.go-card .dest{font-family:var(--font-mono);color:var(--violetd);font-size:14px}
.go-code{font-family:var(--font-mono);font-size:30px;letter-spacing:3px;margin:18px 0;color:var(--ink)}
.go-btn{display:inline-block;background:var(--lime);color:#073018;font-weight:800;padding:14px 28px;border-radius:12px;font-size:17px;margin-top:8px;border:2px solid var(--ink)}
.go-btn:hover{background:var(--limeL)}
.go-list{text-align:left;font-size:13.5px;color:var(--ink2);margin:20px auto 0;max-width:440px}
.go-list li{margin:8px 0;padding-left:4px}
.go-count{font-family:var(--font-mono);color:var(--ink2);font-size:13px;margin-top:14px}

/* generic CTA button */
.btn-primary{display:inline-flex;align-items:center;gap:8px;background:var(--lime);color:#073018;font-weight:800;padding:13px 22px;border-radius:11px;border:2px solid var(--ink)}
.btn-primary:hover{background:var(--limeL)}

/* animations */
@keyframes march{to{stroke-dashoffset:-26}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes glow{0%,100%{opacity:.5}50%{opacity:1}}
@keyframes pp{0%,100%{transform:scale(1)}50%{transform:scale(1.08)}}
@keyframes chg{0%,100%{width:38%}50%{width:96%}}
@keyframes slide{to{background-position:26px 0}}
.flow{stroke-dasharray:10 16;animation:march 1s linear infinite}
.spin{animation:spin 14s linear infinite;transform-box:fill-box;transform-origin:center}
.glow{animation:glow 2.4s ease-in-out infinite}
.pulse{animation:pp 2s ease-in-out infinite;transform-box:fill-box;transform-origin:center}

/* ===== responsive ===== */
@media (max-width:980px){
  :root{--gut:22px}
  .navlinks{position:absolute;top:72px;right:var(--gut);left:var(--gut);flex-direction:column;gap:0;background:var(--ink);border-radius:14px;padding:8px 0;display:none;z-index:20}
  .navlinks.open{display:flex}
  .navlinks a{color:#e9e6f6;padding:12px 20px;border-bottom:1px solid #2a2350}
  .navlinks a:last-child{border-bottom:0}
  .navtoggle{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border:1px solid var(--hair);border-radius:10px;background:#fff;cursor:pointer;font-size:20px}
  .hero{min-height:0;display:flex;flex-direction:column;padding-bottom:24px}
  .hero>.wrap{order:1}
  .head{order:2;position:static;max-width:none;padding:18px var(--gut) 0}
  .head .hh{font-size:36px}
  .capsule{order:3;position:static;margin:18px var(--gut) 4px;width:auto;max-width:none}
  .capfine{order:4;position:static;margin:6px var(--gut) 0;text-align:left;max-width:none}
  .scene{order:5;position:relative;height:210px;margin-top:8px;opacity:.95}
  .heronote{order:6;position:static;margin:10px var(--gut) 0;text-align:left;max-width:none}
  .sec>.wrap{padding-left:var(--gut)}
  .seclabel{margin-left:0}
  .spine{display:none}
  .rig{grid-template-columns:1fr}
  .ftr .cols{grid-template-columns:1fr 1fr}
  .arthead h1{font-size:30px}
}
@media (max-width:560px){
  .head .hh{font-size:32px}
  .sectitle{font-size:26px}
  .pipe{grid-template-columns:110px 1fr;gap:10px}
  .pipe .rt{grid-column:1 / -1;text-align:left}
  .port{grid-template-columns:40px 1fr;gap:12px}
  .port .go{display:none}
  .entry{grid-template-columns:44px 1fr;gap:14px}
  .entry .tagm{display:none}
  .trust .wrap{gap:18px}
  .ftr .cols{grid-template-columns:1fr}
  .cap-cap{width:46px}
  .cap-cap b{font-size:15px}
  .cap-end{width:104px}
  .cc{font-size:24px}
  .cap-body{padding:10px 14px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .flow,.spin,.glow,.pulse,.charge i,.strip .pipe-bg,.tube .fill:before,.rig-out .tubeline:before{animation:none}
}