/* ============ MINGMA TECH · site.css ============ */
:root{ --bg:#0a0e1a; --line:#1f2c47; --text:#dbe6ff; --cyan:#22d3ee; --teal:#38e0b8 }
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:'Space Grotesk','PingFang SC','Microsoft YaHei',sans-serif;line-height:1.7;overflow-x:hidden;-webkit-font-smoothing:antialiased}
.mono,pre,label{font-family:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace}
a{text-decoration:none;color:inherit} ul{list-style:none}

.kicker{color:var(--teal);letter-spacing:.14em;font-size:.82rem;margin-bottom:.9rem;text-transform:uppercase;overflow-wrap:anywhere}
.grad{background:linear-gradient(90deg,var(--cyan) 0%,var(--teal) 55%,#7dd3fc 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.section{position:relative;z-index:1;max-width:1280px;margin:0 auto;padding:96px clamp(24px,6vw,72px)}
.sec-head{text-align:center;margin-bottom:56px}
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.85rem 1.7rem;border-radius:10px;font-weight:600;font-size:.95rem;border:1px solid transparent;transition:transform .2s,box-shadow .3s,border-color .2s,color .2s}
.btn-primary{background:linear-gradient(90deg,var(--cyan),var(--teal));color:#04121f;box-shadow:0 8px 30px -8px var(--cyan)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 44px -6px var(--cyan)}
.btn-ghost{border-color:#2dd4bf55;color:#9ff0e7}
.btn-ghost:hover{background:#13b9d61a;transform:translateY(-2px)}
.btn-sm{padding:.5rem 1.1rem;font-size:.85rem}

.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease;will-change:opacity,transform}
.reveal.in{opacity:1;transform:none}

/* ---------- nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;align-items:center;justify-content:space-between;padding:.8rem clamp(16px,4vw,48px);border-bottom:1px solid transparent;transition:border-color .3s}
.nav.scrolled{background:#0a0e1abf;border-bottom-color:var(--line);backdrop-filter:blur(14px)}
.brand{display:flex;align-items:center;gap:.6rem;font-weight:700;font-size:1.02rem}
.brand img{filter:drop-shadow(0 0 8px var(--cyan))}
.brand-en{color:#5f7396;font-size:.68rem;border-left:1px solid var(--line);padding-left:.6rem;letter-spacing:.1em;display:inline-block}
.nav-links{display:flex;gap:clamp(.7rem,2.4vw,1.9rem)}
.nav-links a,.foot-nav a{color:#a5b8d6;font-size:.93rem;padding-bottom:2px;transition:color .2s}
.nav-links a:hover,.nav-links a.active,.foot-nav a:hover{color:var(--cyan)}
.nav-right{display:flex;align-items:center;gap:.7rem}
.lang-toggle{background:none;border:1px solid var(--line);border-radius:8px;color:#9fb2d0;padding:.45rem .75rem;font-size:.75rem;cursor:pointer;letter-spacing:.06em}
.lang-toggle:hover{color:#cfe3ff;border-color:#2dd4bf66}

/* ---------- hero ---------- */
.hero{position:relative;height:100vh;height:100svh;display:flex;align-items:center;justify-content:center;text-align:center;overflow:hidden;background-image:linear-gradient(rgba(97,155,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(97,155,255,.04) 1px,transparent 1px);background-size:48px 48px}
#circuitCanvas{position:absolute;inset:0;width:100%;height:100%}
.hero::after{content:'';position:absolute;left:0;right:0;bottom:0;height:35%;background:linear-gradient(transparent,var(--bg))}
.scanline{position:absolute;left:-25%;right:-25%;top:-6rem;height:4.5rem;background:linear-gradient(to bottom,transparent,#7dd3fc1f,transparent);transform:rotate(-10deg);animation:sweep 9s linear infinite;pointer-events:none}
@keyframes sweep{to{transform:translateY(calc(100vh + 8rem)) rotate(-10deg)}}
.hero-inner{position:relative;z-index:2;padding:0 24px;margin-top:-6vh}
.hero-title{font-size:clamp(2.35rem,7vw,4.9rem);line-height:1.15;font-weight:800;letter-spacing:.01em;margin-bottom:1.4rem;text-shadow:0 0 60px #22d3ee33}
.typewriter-line{color:#9ff0e7;font-size:clamp(.85rem,2vw,1.05rem);margin-bottom:2.4rem;min-height:1.6em}
.cursor{animation:blink 1s steps(2) infinite;color:var(--cyan)}
@keyframes blink{50%{opacity:0}}
.hero-cta{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}
.hero-scroll{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:3;color:#4d6a92;font-size:.7rem;display:flex;align-items:center;gap:.8rem}
.hero-scroll i{width:1px;height:38px;background:#2b4368;margin-left:-.4rem;padding-left:.85rem;border-left:0;position:relative}
.hero-scroll i::after{content:'';position:absolute;left:-2.5px;top:0;width:6px;height:6px;border-radius:50%;background:var(--cyan);animation:drip 1.8s ease-in-out infinite}
@keyframes drip{70%{top:32px;opacity:.4}to{top:32px;opacity:0}}

/* ---------- stats ---------- */
.stats{position:relative;z-index:1;display:flex;justify-content:center;gap:clamp(1.5rem,6vw,5rem);flex-wrap:wrap;padding:48px 24px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#0d1322}
.stat{text-align:center;min-width:170px;display:flex;align-items:baseline;justify-content:center;flex-wrap:wrap;padding:.5rem .8rem;border-radius:14px;background:#ffffff05;border:1px solid #1c2946}
.stat b{font-size:clamp(2.3rem,5vw,3.4rem);color:var(--cyan);text-shadow:0 0 24px #22d3ee66;margin-right:.1em;font-weight:700}
.stat span{font-family:'JetBrains Mono',monospace;color:var(--teal)}
.stat em{display:block;width:100%;font-style:normal;color:#8fa3c8;font-size:.9rem}

/* ---------- services cards ---------- */
.cards-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:24px}
.card{position:relative;padding:36px 28px;border-radius:18px;background:#ffffff05;border:1px solid var(--line);overflow:hidden;display:flex;flex-direction:column;align-items:center;text-align:center;transition:border-color .3s,box-shadow .3s,transform .3s}
.card:hover{border-color:#2dd4bf7a;box-shadow:0 16px 52px -18px var(--cyan);transform:translateY(-4px)}
.card svg{width:60px;height:60px;margin-bottom:1.3rem;fill:none;stroke:url(#mm-gradStroke);stroke-width:2.4;stroke-linecap:round;filter:drop-shadow(0 0 8px #22d3ee7f)}
.card h3{font-size:1.25rem;margin-bottom:.4rem}
.card p{color:#9db0cf;font-size:.95rem}
.card-en{color:#5f7396!important;font-family:'JetBrains Mono',monospace;letter-spacing:.18em;text-transform:uppercase;font-size:.68rem!important;line-height:2.4;margin-bottom:1rem}
.card .ticks{margin-top:auto;padding-top:.6rem;width:100%}
.badge{position:absolute;top:14px;right:14px;color:#ffdf7a;border-color:#ffd35b55;background:#ffdf7a12;font-size:.6rem;letter-spacing:.2em;padding:.3rem .6rem;border-radius:999px;border-width:1px;border-style:solid}
.card-hot{border-color:#2dd4bf4d;background:linear-gradient(180deg,#ffffff08,transparent)}

/* ---------- ticks ---------- */
.ticks li{position:relative;padding-left:2.35rem;font-size:.96rem;color:#b8c8e4;line-height:1.9;overflow-wrap:anywhere}
.ticks li::before{content:'';position:absolute;left:0;top:.7em;width:9px;height:9px;background:linear-gradient(135deg,var(--cyan),var(--teal));border-radius:2px;transform:rotate(45deg);box-shadow:0 0 12px var(--cyan)}

/* ---------- ems dashboard mock ---------- */
.split{display:flex;gap:clamp(2rem,6vw,4.5rem);align-items:center}
.split>div:first-child,.split>figure:first-child{flex:1.35 1 0;min-width:min(100%,380px)}
.split>div:last-child,.split>aside:last-child{flex:1 1 0;min-width:min(100%,296px)}
.split-6438 form{flex:1.55 1 0}.split-6438 aside{flex:.95 1 0}
.dash{position:relative;background:#ffffff07;border:1px solid var(--line);border-radius:20px;padding:clamp(1rem,3vw,1.7rem)}
.dash header{display:flex;align-items:center;gap:.6em;margin-bottom:14px;font-size:.82rem;color:#9db0cf}
.dash footer{display:flex;justify-content:space-between;flex-wrap:wrap;gap:.5rem;border-top:1px solid var(--line);padding-top:13px;margin-top:6px}
.dot{width:.7em;height:.7em;border-radius:50%;background:#ffdf7a;display:inline-block;animation:pulse 2s infinite}
@keyframes pulse{50%{opacity:.4}}
.dash svg{display:block;width:100%;height:auto;aspect-ratio:3.6/1}
#clock,.kpi b{color:#9ff0e7;font-size:.8em;margin-left:.2em}
.kpi{font-size:.7rem;color:#5f7396;border:1px solid var(--line);padding:.45rem .75rem;border-radius:8px;background:#ffffff0a;letter-spacing:.12em}
#waveA{fill:none;stroke:url(#mm-gradStroke);stroke-width:2.4;filter:drop-shadow(0 0 6px #22d3eecc)}
#waveB{fill:none;stroke:#e94ed08c;stroke-width:1.5}

/* ---------- esp32 chip + code ---------- */
.chip svg{width:100%;height:auto;display:block;margin-top:2rem;background-image:linear-gradient(#ffffff0a 1px,transparent 1px),linear-gradient(90deg,#ffffff0a 1px,transparent 1px);background-size:34px 34px;border-radius:20px}
.chip .board-body,.chip rect:first-of-type{fill:#16233f;stroke:url(#mm-gradStroke)}
.chip .pads path{stroke-width:5;stroke:#7dd3fc;filter:drop-shadow(0 0 4px #22d3ee);transition:opacity .8s ease}
.chip text{fill:#9db0cf;font-size:.6em}
.code{background:#1c1a12;border-left:3px solid var(--teal);color:#e7dfce;padding:1.4rem 1.5rem;overflow-x:auto;margin-top:2rem;font-size:.85rem;line-height:1.95;border-radius:0 12px 12px 0}
.code .kw{color:#ffdf7a}.code .st,.code .num{color:#e94ed0}

/* ---------- marquee ---------- */
.marquee{position:relative;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#ffffff05;margin-top:2.6rem;-webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent)}
.marquee ul{display:flex;width:max-content;animation:mq 34s linear infinite}
.marquee:hover ul{animation-play-state:paused}
@keyframes mq{to{transform:translateX(-50%)}}
.chip-tag{display:inline-flex;align-items:center;padding:.58rem 1.3rem;border-radius:999px;color:#cfe3ff;background:#ffffff0a;border:1px solid var(--line);font-family:'JetBrains Mono',monospace;font-size:.76rem;white-space:nowrap;margin-right:.7rem}
.chip-tag::before{content:'';width:.5em;height:.5em;border-radius:50%;background:var(--teal);margin-right:.6em;box-shadow:0 0 8px var(--cyan)}

/* ---------- process steps ---------- */
.steps{display:flex;justify-content:center;gap:clamp(1rem,4vw,3.2rem);flex-wrap:wrap}
.step{text-align:center;width:min(215px,46%)}
.step-n{width:2em;height:2em;line-height:1;border-radius:.9em;display:inline-flex;align-items:center;justify-content:center;font-size:clamp(.9rem,3vw,1.08rem);background:#ffffff0a;border-width:1px;border-style:solid;margin-bottom:.75rem}
.step h4{font-size:1.02rem;color:#e6efff;margin-bottom:.35rem;letter-spacing:.02em}
.step p{font-size:.85rem;line-height:1.75;color:#9db0cf;text-wrap:balance;max-width:23ch;margin-inline:auto}

/* ---------- contact form ---------- */
.contact-section .split{align-items:flex-start}
.field{display:flex;flex-direction:column;gap:.45rem;margin-bottom:1.3rem;font-size:.86rem;color:#9db0cf;text-transform:uppercase;letter-spacing:.12em}
input,textarea{background:#ffffff07;border:1px solid var(--line);color:#eaf2ff;padding:.85rem 1.05rem;border-radius:10px;font-size:.96rem;font-family:'Space Grotesk',sans-serif;letter-spacing:normal;text-transform:none;width:100%}
input:focus,textarea:focus{outline:none;border-color:#2dd4bf9e;background:#ffffff0b;box-shadow:0 0 24px -8px var(--cyan)}
.contact-card{background:#ffffff07;border:1px solid var(--line);border-radius:16px;padding:clamp(1.3rem,3vw,2rem)}
.contact-card h3{color:#5f7396;font-size:.78rem;letter-spacing:.2em;margin-bottom:1.4rem}
.contact-card dl dt{font-family:'JetBrains Mono',monospace;font-size:.68rem;color:#5f7396;text-transform:uppercase;letter-spacing:.15em;margin-top:1.2rem}
.contact-card dd a,.contact-card dd:not(.copyable){color:#cfe3ff;font-size:1.02rem;border-bottom:1px dashed #2dd4bf55;padding-bottom:1px;display:inline-block;overflow-wrap:anywhere}
.copyable{position:relative;cursor:pointer;color:#9ff0e7;background:none;border-width:0!important}
.copy-hint{font-size:.6rem;color:#5f7396;margin-left:.8em;letter-spacing:.1em}

/* ---------- footer ---------- */
.footer{text-align:center;padding:4.2rem 24px 5rem;border-top:1px solid var(--line);background:#0b101d;display:flex;flex-direction:column;align-items:center;gap:.9rem;margin-top:2rem}
.footer img{filter:drop-shadow(0 0 8px #22d3ee)}
.foot-nav{display:flex;gap:1.6rem;font-size:.85rem}
.copyright,.beian{color:#4d6a92;font-size:.75rem;line-height:2}

/* ---------- responsive ---------- */
@media (max-width:820px){ .nav-links{display:none} }
@media (max-width:760px){ .split{flex-direction:column;align-items:center} }
@media (prefers-reduced-motion:reduce){ html.js .reveal{opacity:1;transform:none}.scanline,.dash,#typewriter,#fwCode{animation:none!important}.cursor{display:none} #circuitCanvas,html.no-anim .scanline{display:none} }