/* ============================================================
   康派电子 Compass Electronics — Design System
   深空蓝 · 北斗金 | Deep-Space Blue · BeiDou Gold
   ============================================================ */
/* ---- 自托管思源黑体（SIL OFL 1.1，可商用；子集见 make_font.py） ---- */
@font-face{
  font-family:"Source Han Sans SC";
  font-style:normal;
  font-weight:400;
  font-display:swap;
  src:url("../fonts/source-han-sans-sc-400.woff2") format("woff2");
}
@font-face{
  font-family:"Source Han Sans SC";
  font-style:normal;
  font-weight:700;
  font-display:swap;
  src:url("../fonts/source-han-sans-sc-700.woff2") format("woff2");
}
:root{
  --bg-0:#04070f;
  --bg-1:#070f1f;
  --bg-2:#0a1830;
  --bg-3:#0e2142;
  --card:rgba(140,175,255,.055);
  --card-hi:rgba(140,175,255,.10);
  --line:rgba(140,175,255,.14);
  --line-hi:rgba(140,190,255,.32);
  --txt:#eaf1ff;
  --muted:#9db1d6;
  --dim:#6e82a8;
  --cyan:#3fd0ff;
  --blue:#2f7bff;
  --gold:#ffc35c;
  --gold-deep:#e8a33d;
  --grad:linear-gradient(120deg,#43dcff 0%,#2f7bff 60%,#6ea8ff 100%);
  --grad-gold:linear-gradient(120deg,#ffd98a,#ffb340);
  --shadow:0 18px 50px rgba(2,8,23,.55);
  --radius:16px;
  --nav-h:76px;
  --font:"Source Han Sans SC","Source Han Sans CN","PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Sans GB",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font);
  background:var(--bg-0);
  color:var(--txt);
  line-height:1.7;
  overflow-x:hidden;
  letter-spacing:.01em;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
::selection{background:rgba(63,208,255,.35)}
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-track{background:var(--bg-0)}
::-webkit-scrollbar-thumb{background:#1b2c4f;border-radius:6px}
::-webkit-scrollbar-thumb:hover{background:#27406e}

/* ---------- Layout ---------- */
.container{width:min(1200px,92%);margin:0 auto}
.section{padding:96px 0;position:relative}
.section.tight{padding:72px 0}
.sec-head{max-width:760px;margin:0 auto 56px;text-align:center}
.sec-head.left{margin:0 0 48px;text-align:left}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.28em;text-transform:uppercase;
  color:var(--gold);margin-bottom:14px;
}
.kicker::before{content:"";width:26px;height:1px;background:var(--grad-gold);display:inline-block}
h1,h2,h3,h4{line-height:1.3;font-weight:700}
.sec-head h2{font-size:clamp(26px,3.4vw,40px);letter-spacing:.02em}
.sec-head .lead{color:var(--muted);margin-top:14px;font-size:16px}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.gold-text{background:var(--grad-gold);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- Background deco ---------- */
.bg-glow{position:absolute;pointer-events:none;border-radius:50%;filter:blur(90px);opacity:.5;z-index:0}
.bg-glow.cyan{background:radial-gradient(circle,rgba(47,123,255,.28),transparent 70%)}
.bg-glow.gold{background:radial-gradient(circle,rgba(255,178,64,.14),transparent 70%)}
.grid-lines{
  position:absolute;inset:0;pointer-events:none;z-index:0;opacity:.5;
  background-image:linear-gradient(rgba(120,160,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(120,160,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 80% 70% at 50% 30%,#000 30%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 80% 70% at 50% 30%,#000 30%,transparent 75%);
}
.section>.container{position:relative;z-index:1}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 30px;border-radius:999px;font-size:15px;font-weight:600;
  cursor:pointer;border:1px solid transparent;transition:.25s ease;white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#04101f;box-shadow:0 8px 26px rgba(47,123,255,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 34px rgba(47,123,255,.5)}
.btn-ghost{border-color:var(--line-hi);color:var(--txt);background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(63,208,255,.06)}
.btn-gold{background:var(--grad-gold);color:#2b1a02;box-shadow:0 8px 26px rgba(255,178,64,.3)}
.btn-gold:hover{transform:translateY(-2px)}
.btn-sm{padding:9px 20px;font-size:13px}

/* ---------- Header / Nav ---------- */
.header{
  position:fixed;top:0;left:0;right:0;z-index:100;height:var(--nav-h);
  display:flex;align-items:center;
  background:rgba(4,7,15,.55);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid transparent;transition:.3s;
}
.header.scrolled{background:rgba(4,8,18,.88);border-bottom-color:var(--line)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo{display:flex;align-items:center;flex-shrink:0;background:#fff;border-radius:10px;padding:6px 12px;box-shadow:0 2px 14px rgba(0,20,45,.35)}
.logo img{height:30px;width:auto;display:block}
.about .logo{align-self:flex-start}
.nav{display:flex;align-items:center;gap:6px}
.nav a{
  padding:9px 16px;border-radius:10px;font-size:15px;color:var(--muted);
  transition:.2s;position:relative;font-weight:500;
}
.nav a:hover{color:var(--txt);background:var(--card)}
.nav a.active{color:var(--cyan)}
.nav a.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:3px;height:2px;
  background:var(--grad);border-radius:2px;
}
.nav-tools{display:flex;align-items:center;gap:12px;flex-shrink:0}
.lang-toggle{
  display:flex;align-items:center;border:1px solid var(--line-hi);border-radius:999px;
  overflow:hidden;font-size:13px;font-weight:600;background:rgba(255,255,255,.02);
}
.lang-toggle button{
  padding:6px 13px;background:none;border:none;color:var(--muted);cursor:pointer;
  font-family:inherit;font-size:13px;font-weight:600;transition:.2s;
}
.lang-toggle button.on{background:var(--grad);color:#04101f}
.burger{display:none;background:none;border:none;cursor:pointer;width:40px;height:40px;position:relative}
.burger span{position:absolute;left:9px;right:9px;height:2px;background:var(--txt);border-radius:2px;transition:.3s}
.burger span:nth-child(1){top:13px}.burger span:nth-child(2){top:19px}.burger span:nth-child(3){top:25px}
.burger.open span:nth-child(1){top:19px;transform:rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){top:19px;transform:rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;
  padding:calc(var(--nav-h) + 40px) 0 80px;overflow:hidden;
  background:radial-gradient(ellipse 90% 65% at 50% -10%,#12264d 0%,var(--bg-1) 45%,var(--bg-0) 100%);
}
#stars{position:absolute;inset:0;z-index:0}
.hero .container{position:relative;z-index:2}
.hero-inner{max-width:860px}
.hero-tag{
  display:inline-flex;align-items:center;gap:10px;padding:8px 18px;border-radius:999px;
  border:1px solid var(--line-hi);background:rgba(63,208,255,.06);
  font-size:13px;letter-spacing:.14em;color:var(--cyan);margin-bottom:26px;
}
.hero-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 10px var(--gold);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.hero h1{font-size:clamp(34px,5.6vw,64px);letter-spacing:.03em;line-height:1.22;font-weight:800}
.hero h1 .en{display:block;font-size:.42em;font-weight:600;letter-spacing:.3em;color:var(--muted);margin-top:16px;text-transform:uppercase}
.hero .sub{color:var(--muted);font-size:clamp(15px,1.6vw,18px);max-width:640px;margin-top:24px}
.hero-cta{display:flex;gap:16px;margin-top:38px;flex-wrap:wrap}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:70px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
}
.hero-stats .stat{background:rgba(7,15,31,.72);backdrop-filter:blur(8px);padding:22px 26px}
.hero-stats .num{font-size:clamp(24px,2.6vw,34px);font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.2}
.hero-stats .num em{font-style:normal;font-size:.55em}
.hero-stats .lbl{font-size:13px;color:var(--muted);margin-top:5px;letter-spacing:.05em}

/* orbit deco */
.orbit{position:absolute;right:-70px;top:50%;transform:translateY(-50%);width:760px;height:760px;z-index:1;opacity:.9;pointer-events:none}
.orbit .ring{position:absolute;inset:0;border:1px solid rgba(110,150,230,.18);border-radius:50%}
.orbit .ring:nth-child(2){inset:90px;border-color:rgba(110,150,230,.26)}
.orbit .ring:nth-child(3){inset:180px;border-color:rgba(255,195,92,.28);border-style:dashed}
.orbit .ring:nth-child(4){inset:255px;border-color:rgba(110,150,230,.35)}
.orbit .sat{position:absolute;width:14px;height:14px;border-radius:50%;background:var(--gold);box-shadow:0 0 18px var(--gold)}
.orbit .sat.s1{top:-7px;left:50%;animation:spin1 16s linear infinite;transform-origin:380px 387px}
.orbit .sat.s2{top:83px;left:50%;animation:spin2 24s linear infinite;transform-origin:290px 297px}
.orbit .core{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:130px;height:130px;border-radius:50%;
  background:radial-gradient(circle at 35% 30%,rgba(63,208,255,.9),rgba(47,123,255,.5) 55%,rgba(10,24,48,.2));
  box-shadow:0 0 60px rgba(63,208,255,.45),inset 0 0 30px rgba(255,255,255,.25);
  display:flex;align-items:center;justify-content:center;
}
.orbit .core svg{width:64px;height:64px;opacity:.95}
@keyframes spin1{from{transform:rotate(0)}to{transform:rotate(360deg)}}
@keyframes spin2{from{transform:rotate(140deg)}to{transform:rotate(500deg)}}
.scroll-cue{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:2;color:var(--dim);font-size:11px;letter-spacing:.3em;display:flex;flex-direction:column;align-items:center;gap:8px}
.scroll-cue::after{content:"";width:1px;height:34px;background:linear-gradient(var(--cyan),transparent);animation:cue 1.8s infinite}
@keyframes cue{0%{transform:scaleY(0);transform-origin:top}55%{transform:scaleY(1);transform-origin:top}56%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* ---------- Cards ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px;transition:.3s;position:relative;overflow:hidden;
}
.card:hover{border-color:var(--line-hi);background:var(--card-hi);transform:translateY(-4px);box-shadow:var(--shadow)}
.card .icon{
  width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:rgba(63,208,255,.09);border:1px solid rgba(63,208,255,.22);margin-bottom:20px;
}
.card .icon svg{width:26px;height:26px;stroke:var(--cyan);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-size:18px;margin-bottom:10px}
.card p{color:var(--muted);font-size:14.5px}
.card .num-badge{
  position:absolute;top:22px;right:24px;font-size:38px;font-weight:800;
  color:rgba(140,175,255,.10);line-height:1;
}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}

/* ---------- Product cards ---------- */
.prod-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:.3s;display:flex;flex-direction:column;position:relative;
}
.prod-card:hover{border-color:var(--line-hi);transform:translateY(-6px);box-shadow:var(--shadow)}
.prod-img{
  height:230px;display:flex;align-items:center;justify-content:center;padding:18px;
  background:radial-gradient(circle at 50% 42%,#122142 0%,#060c1a 75%);position:relative;overflow:hidden;
}
.prod-img img{max-height:100%;max-width:86%;object-fit:contain;transition:.45s ease;filter:drop-shadow(0 14px 22px rgba(0,0,0,.5))}
.prod-card:hover .prod-img img{transform:scale(1.07)}
.prod-img .model{
  position:absolute;top:14px;left:14px;padding:4px 12px;border-radius:999px;
  font-size:11.5px;font-weight:700;letter-spacing:.08em;color:var(--gold);
  border:1px solid rgba(255,195,92,.4);background:rgba(255,195,92,.08);
}
.prod-body{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1}
.prod-body h3{font-size:17px;margin-bottom:8px}
.prod-body .en-name{font-size:12px;color:var(--dim);letter-spacing:.04em;margin-bottom:12px}
.prod-body p{color:var(--muted);font-size:14px;flex:1;margin-bottom:18px}
.prod-body .more{
  font-size:13.5px;font-weight:600;color:var(--cyan);display:inline-flex;align-items:center;gap:6px;
}
.prod-body .more:hover{gap:10px}
.prod-body .more{transition:.2s}

/* filter chips */
.chips{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-bottom:44px}
.chip{
  padding:8px 20px;border-radius:999px;border:1px solid var(--line);font-size:14px;
  color:var(--muted);cursor:pointer;background:transparent;transition:.2s;font-family:inherit;
}
.chip:hover{border-color:var(--line-hi);color:var(--txt)}
.chip.on{background:var(--grad);color:#04101f;border-color:transparent;font-weight:600}

/* ---------- Split / feature sections ---------- */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.split .media{position:relative}
.split .media img{border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow);width:100%}
.split .media .float-card{
  position:absolute;bottom:-24px;left:-24px;padding:18px 24px;border-radius:14px;
  background:rgba(10,24,48,.9);backdrop-filter:blur(12px);border:1px solid var(--line-hi);
  box-shadow:var(--shadow);display:flex;align-items:center;gap:14px;
}
.split .media .float-card .fc-num{font-size:26px;font-weight:800;color:var(--gold)}
.split .media .float-card .fc-txt{font-size:13px;color:var(--muted);line-height:1.4}
.feature-list{display:flex;flex-direction:column;gap:18px;margin-top:28px}
.feature-list li{display:flex;gap:16px;align-items:flex-start}
.feature-list .f-ico{
  width:42px;height:42px;border-radius:12px;flex-shrink:0;display:flex;align-items:center;justify-content:center;
  background:rgba(63,208,255,.08);border:1px solid rgba(63,208,255,.2);
}
.feature-list .f-ico svg{width:21px;height:21px;stroke:var(--cyan);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.feature-list h4{font-size:16px;margin-bottom:4px}
.feature-list p{color:var(--muted);font-size:14px}

/* ---------- Scenarios ---------- */
.scene-card{
  position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  min-height:300px;display:flex;align-items:flex-end;transition:.3s;
}
.scene-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--line-hi)}
.scene-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:.5s}
.scene-card:hover img{transform:scale(1.06)}
.scene-card .overlay{
  position:absolute;inset:0;
  background:linear-gradient(to top,rgba(4,8,18,.94) 12%,rgba(4,8,18,.45) 50%,rgba(4,8,18,.08));
}
.scene-card .info{position:relative;z-index:1;padding:26px}
.scene-card .info h3{font-size:19px;margin-bottom:6px}
.scene-card .info p{color:var(--muted);font-size:13.5px}

/* ---------- Timeline ---------- */
.timeline{position:relative;max-width:860px;margin:0 auto;padding-left:34px}
.timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:1px;background:linear-gradient(var(--cyan),rgba(255,195,92,.5),transparent)}
.tl-item{position:relative;padding:0 0 38px 22px}
.tl-item::before{
  content:"";position:absolute;left:-31px;top:8px;width:11px;height:11px;border-radius:50%;
  background:var(--bg-1);border:2px solid var(--cyan);box-shadow:0 0 12px rgba(63,208,255,.6);
}
.tl-item .tl-year{font-size:14px;font-weight:700;color:var(--gold);letter-spacing:.08em;margin-bottom:4px}
.tl-item h4{font-size:17px;margin-bottom:6px}
.tl-item p{color:var(--muted);font-size:14px;max-width:640px}

/* ---------- Certs ---------- */
.cert-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;transition:.3s}
.cert-card:hover{border-color:var(--line-hi);transform:translateY(-4px);box-shadow:var(--shadow)}
.cert-card img{border-radius:10px;width:100%;aspect-ratio:4/3;object-fit:cover;background:#fff}
.cert-card h4{font-size:15.5px;margin:14px 6px 4px}
.cert-card p{font-size:12.5px;color:var(--dim);margin:0 6px 6px}

/* ---------- Stats band ---------- */
.band{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(90deg,rgba(47,123,255,.08),rgba(255,195,92,.06));
}

/* ---------- Page hero (inner pages) ---------- */
.page-hero{
  position:relative;padding:calc(var(--nav-h) + 70px) 0 64px;overflow:hidden;
  background:radial-gradient(ellipse 80% 90% at 50% -20%,#12264d 0%,var(--bg-1) 50%,var(--bg-0) 100%);
}
.page-hero h1{font-size:clamp(28px,4vw,44px);letter-spacing:.03em}
.page-hero .crumbs{font-size:13px;color:var(--dim);margin-bottom:18px;letter-spacing:.06em}
.page-hero .crumbs a{color:var(--dim)}
.page-hero .crumbs a:hover{color:var(--cyan)}
.page-hero .desc{color:var(--muted);max-width:680px;margin-top:16px}

/* ---------- Product detail ---------- */
.pd-wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.pd-stage{
  border-radius:var(--radius);border:1px solid var(--line);
  background:radial-gradient(circle at 50% 40%,#13234a 0%,#060c1a 78%);
  display:flex;align-items:center;justify-content:center;padding:44px;min-height:420px;
  box-shadow:var(--shadow);position:relative;overflow:hidden;
}
.pd-stage::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(120,160,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(120,160,255,.06) 1px,transparent 1px);
  background-size:36px 36px;
}
.pd-stage img{position:relative;max-height:380px;max-width:88%;object-fit:contain;filter:drop-shadow(0 24px 34px rgba(0,0,0,.55))}
.spec-table{width:100%;border-collapse:collapse;margin-top:26px;font-size:14.5px}
.spec-table td{padding:13px 16px;border-bottom:1px solid var(--line);vertical-align:top}
.spec-table tr td:first-child{color:var(--dim);width:132px;white-space:nowrap;font-size:13.5px;letter-spacing:.04em}
.spec-table tr:last-child td{border-bottom:none}
.pd-badges{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0 6px}
.pd-badges span{
  padding:6px 15px;border-radius:999px;font-size:12.5px;font-weight:600;
  border:1px solid rgba(63,208,255,.3);color:var(--cyan);background:rgba(63,208,255,.06);
}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:40px;align-items:start}
.contact-info .c-item{display:flex;gap:16px;padding:20px 0;border-bottom:1px dashed var(--line)}
.contact-info .c-item:last-child{border-bottom:none}
.contact-info .c-ico{
  width:44px;height:44px;border-radius:12px;flex-shrink:0;display:flex;align-items:center;justify-content:center;
  background:rgba(255,195,92,.08);border:1px solid rgba(255,195,92,.28);
}
.contact-info .c-ico svg{width:21px;height:21px;stroke:var(--gold);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.contact-info h4{font-size:15px;margin-bottom:3px}
.contact-info p{color:var(--muted);font-size:14.5px}
.form-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:36px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:7px;letter-spacing:.04em}
.field input,.field textarea,.field select{
  width:100%;padding:12px 15px;border-radius:10px;border:1px solid var(--line);
  background:rgba(5,10,22,.7);color:var(--txt);font-family:inherit;font-size:14.5px;transition:.2s;
}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(63,208,255,.12)}
.field textarea{min-height:120px;resize:vertical}
.form-note{font-size:12.5px;color:var(--dim);margin-top:14px}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;padding:56px 48px;
  background:linear-gradient(120deg,rgba(47,123,255,.16),rgba(63,208,255,.07) 55%,rgba(255,195,92,.1));
  border:1px solid var(--line-hi);display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(22px,2.8vw,32px)}
.cta-band p{color:var(--muted);margin-top:8px}

/* ---------- Footer ---------- */
.footer{border-top:1px solid var(--line);background:var(--bg-0);padding:64px 0 0;position:relative}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer h4{font-size:15px;margin-bottom:18px;letter-spacing:.06em}
.footer .about p{color:var(--muted);font-size:13.5px;margin-top:16px;max-width:300px}
.footer ul li{margin-bottom:11px}
.footer ul a{color:var(--muted);font-size:14px;transition:.2s}
.footer ul a:hover{color:var(--cyan)}
.footer .contact-line{display:flex;gap:10px;color:var(--muted);font-size:13.5px;margin-bottom:12px;align-items:flex-start}
.footer .contact-line svg{width:16px;height:16px;stroke:var(--gold);fill:none;stroke-width:1.8;flex-shrink:0;margin-top:4px;stroke-linecap:round;stroke-linejoin:round}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  color:var(--dim);font-size:12.5px;
}
.footer-bottom a{color:var(--dim)}
.footer-bottom a:hover{color:var(--cyan)}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}
.reveal.d4{transition-delay:.32s}.reveal.d5{transition-delay:.4s}.reveal.d6{transition-delay:.48s}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.01ms !important}
}

/* ---------- Responsive ---------- */
@media (max-width:1080px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .orbit{opacity:.45;right:-190px}
  .split,.pd-wrap,.contact-grid{grid-template-columns:1fr;gap:44px}
  .split .media .float-card{left:16px;bottom:-18px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .nav{
    position:fixed;top:var(--nav-h);left:0;right:0;flex-direction:column;align-items:stretch;gap:0;
    background:rgba(5,9,20,.97);backdrop-filter:blur(20px);border-bottom:1px solid var(--line);
    padding:10px 4%;display:none;max-height:calc(100vh - var(--nav-h));overflow:auto;
  }
  .nav.open{display:flex}
  .nav a{padding:15px 12px;border-radius:10px;font-size:16px;border-bottom:1px solid rgba(140,175,255,.06)}
  .nav a.active::after{display:none}
  .burger{display:block}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .section{padding:70px 0}
  .form-row{grid-template-columns:1fr}
  .cta-band{padding:40px 28px}
}
@media (max-width:560px){
  .grid-4{grid-template-columns:1fr}
  .hero-stats .stat{padding:16px 18px}
  .footer-grid{grid-template-columns:1fr}
  .logo img{height:24px}
  .logo{padding:5px 9px}
  .prod-img{height:200px}
}

/* ---- 自转地球 + 环绕卫星 ---- */
.orbit svg{width:100%;height:100%;display:block}
.orbit .landmove{animation:landspin 40s linear infinite}
@keyframes landspin{from{transform:translateX(-906.7px)}to{transform:translateX(0)}}
@media (prefers-reduced-motion:reduce){.orbit .landmove{animation:none}}
.orbit .globe-gif{width:100%;height:100%;object-fit:contain;display:block}
.orbit.has-gif{mix-blend-mode:screen}

/* ---- hero 产品线一览（5 列文字统计栏） ---- */
.hero-lines{grid-template-columns:repeat(5,1fr)}
.hero-lines .stat{display:flex;align-items:center;justify-content:center;text-align:center;padding:20px 8px}
.hero-lines .num.line-item{font-size:clamp(12px,1.12vw,16px);line-height:1.5;letter-spacing:0;white-space:nowrap}
@media (max-width:1080px){.hero-lines{grid-template-columns:repeat(3,1fr)}}
@media (max-width:560px){.hero-lines{grid-template-columns:repeat(1,1fr)}}