/* ==========================================================================
   南京柔曦光电科技有限公司 · Roxilight  —  Design System
   Deep-space engineering aesthetic · blue→cyan brand gradient
   ========================================================================== */

/* ---------- 1. Tokens ---------- */
:root{
  /* surfaces */
  --bg:#04070e;
  --bg-2:#070d1a;
  --bg-3:#0a1120;
  --panel:rgba(255,255,255,.035);
  --panel-2:rgba(255,255,255,.055);
  --line:rgba(122,170,255,.13);
  --line-2:rgba(122,170,255,.26);

  /* type */
  --fg:#e9eefb;
  --fg-2:#a3b3d2;
  --fg-3:#68789a;
  --fg-4:#46536e;

  /* brand */
  --navy:#0c3c9c;
  --blue:#0c60c0;
  --sky:#009ce4;
  --cyan:#22d3ee;
  --cyan-lt:#8ae9ff;
  --brand:linear-gradient(135deg,#0c3c9c 0%,#0c60c0 48%,#00b4e8 100%);
  --brand-soft:linear-gradient(135deg,rgba(12,60,156,.24),rgba(0,180,232,.14));

  /* geometry */
  --r-sm:10px; --r:14px; --r-lg:20px; --r-xl:28px;
  --shell:1240px;
  --gut:clamp(20px,4vw,44px);
  --sec-y:clamp(72px,9vw,132px);

  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",-apple-system,"Segoe UI",system-ui,"Helvetica Neue",Arial,sans-serif;
  --mono:"Cascadia Mono","SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;

  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow:0 24px 70px -28px rgba(0,0,0,.9);
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:88px}
body{
  margin:0;background:var(--bg);color:var(--fg);font-family:var(--font);
  font-size:16px;line-height:1.75;letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p,figure,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
table{border-collapse:collapse;width:100%}
::selection{background:rgba(34,211,238,.28);color:#fff}

/* ambient background: aurora + engineering grid + vignette */
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(ellipse 58% 44% at 14% -6%,rgba(12,96,192,.30),transparent 62%),
    radial-gradient(ellipse 46% 38% at 88% 6%,rgba(0,180,232,.18),transparent 60%),
    radial-gradient(ellipse 60% 40% at 50% 104%,rgba(12,60,156,.22),transparent 66%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.5;
  background-image:
    linear-gradient(rgba(122,170,255,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(122,170,255,.055) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(ellipse 78% 62% at 50% 34%,#000 30%,transparent 100%);
          mask-image:radial-gradient(ellipse 78% 62% at 50% 34%,#000 30%,transparent 100%);
}
.shell{position:relative;z-index:1;max-width:var(--shell);margin:0 auto;padding:0 var(--gut)}
main{position:relative;z-index:1}

/* ---------- 3. Typography ---------- */
.display{font-size:clamp(38px,6.2vw,74px);line-height:1.06;font-weight:800;letter-spacing:-.035em;text-wrap:balance}
.h2{font-size:clamp(28px,3.6vw,46px);line-height:1.16;font-weight:750;letter-spacing:-.028em;text-wrap:balance}
.h3{font-size:clamp(20px,2vw,25px);line-height:1.3;font-weight:700;letter-spacing:-.018em}
.h4{font-size:17px;line-height:1.4;font-weight:700;letter-spacing:-.01em}
.lead{font-size:clamp(15.5px,1.35vw,18.5px);line-height:1.72;color:var(--fg-2);font-weight:400}
.body{color:var(--fg-2);font-size:15.5px;line-height:1.78}
.small{font-size:13.5px;color:var(--fg-3);line-height:1.7}
.grad-text{
  background:linear-gradient(100deg,#ffffff 0%,#bfe6ff 34%,#4fd8f5 68%,#8ae9ff 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--mono);font-size:11px;font-weight:600;
  letter-spacing:.24em;text-transform:uppercase;color:var(--sky);
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,transparent,var(--sky))}
.eyebrow--plain::before{display:none}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ---------- 4. Layout helpers ---------- */
.section{position:relative;padding:var(--sec-y) 0}
.section--tight{padding:clamp(52px,6vw,86px) 0}
.sec-head{max-width:760px;margin-bottom:clamp(38px,4.4vw,62px)}
.sec-head--center{margin-inline:auto;text-align:center}
.sec-head .h2{margin:16px 0 14px}
.sec-head--center .eyebrow{justify-content:center}
.grid{display:grid;gap:20px}
/* grid/flex children must be allowed to shrink so wide tables scroll instead of breaking out */
.grid>*,.split>*{min-width:0}
.g-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.g-auto{grid-template-columns:repeat(auto-fit,minmax(272px,1fr))}
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,76px);align-items:center}
.rule{height:1px;background:linear-gradient(90deg,transparent,var(--line-2),transparent);border:0;margin:0}

/* ---------- 5. Header / nav ---------- */
.nav{
  position:sticky;top:0;z-index:60;
  background:rgba(4,7,14,.62);
  -webkit-backdrop-filter:blur(20px) saturate(160%);backdrop-filter:blur(20px) saturate(160%);
  border-bottom:1px solid transparent;transition:border-color .3s var(--ease),background .3s var(--ease);
}
.nav.is-stuck{border-bottom-color:var(--line);background:rgba(4,7,14,.86)}
.nav-in{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand__mark{width:36px;height:36px;flex-shrink:0;filter:drop-shadow(0 4px 14px rgba(0,150,230,.4))}
.brand__txt{display:flex;flex-direction:column;line-height:1}
.brand__cn{font-size:16px;font-weight:750;letter-spacing:.15em}
.brand__en{font-family:var(--mono);font-size:9px;letter-spacing:.34em;color:var(--fg-3);margin-top:5px}

.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{
  position:relative;padding:9px 15px;border-radius:9px;
  font-size:14.5px;color:var(--fg-2);transition:color .22s var(--ease),background .22s var(--ease);
}
.nav-links a:hover{color:var(--fg);background:rgba(255,255,255,.05)}
.nav-links a[aria-current="page"]{color:#fff}
.nav-links a[aria-current="page"]::after{
  content:"";position:absolute;left:15px;right:15px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--blue),var(--cyan));
}
.nav-cta{display:flex;align-items:center;gap:12px;flex-shrink:0}
.burger{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:11px;align-items:center;justify-content:center}
.burger span{display:block;width:17px;height:1.6px;background:var(--fg);border-radius:2px;position:relative;transition:.25s var(--ease)}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:17px;height:1.6px;background:var(--fg);border-radius:2px;transition:.25s var(--ease)}
.burger span::before{top:-5.5px}.burger span::after{top:5.5px}
.nav.is-open .burger span{background:transparent}
.nav.is-open .burger span::before{transform:translateY(5.5px) rotate(45deg)}
.nav.is-open .burger span::after{transform:translateY(-5.5px) rotate(-45deg)}

.drawer{
  display:none;border-top:1px solid var(--line);background:rgba(6,10,20,.97);
  -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
}
.drawer a{display:block;padding:15px var(--gut);border-bottom:1px solid rgba(122,170,255,.07);font-size:15.5px;color:var(--fg-2)}
.drawer a[aria-current="page"]{color:#fff;background:rgba(12,96,192,.14)}
.drawer .drawer-cta{padding:20px var(--gut)}

/* ---------- 6. Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:11px;border:1px solid transparent;
  font-size:14.5px;font-weight:650;letter-spacing:.01em;white-space:nowrap;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease),border-color .24s var(--ease),color .24s var(--ease);
}
.btn svg{width:15px;height:15px;flex-shrink:0}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 10px 30px -10px rgba(0,150,232,.6)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 18px 44px -12px rgba(0,180,232,.72)}
.btn--ghost{border-color:var(--line-2);color:var(--fg-2);background:rgba(255,255,255,.02)}
.btn--ghost:hover{border-color:var(--sky);color:#fff;background:rgba(0,156,228,.10);transform:translateY(-2px)}
.btn--sm{padding:9px 18px;font-size:13.5px;border-radius:9px}
.btn--block{width:100%}

/* ---------- 7. Surfaces ---------- */
.card{
  position:relative;padding:clamp(24px,2.6vw,32px);border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:linear-gradient(168deg,rgba(255,255,255,.055) 0%,rgba(255,255,255,.016) 46%,rgba(255,255,255,.008) 100%);
  overflow:hidden;transition:border-color .3s var(--ease),transform .3s var(--ease),box-shadow .3s var(--ease);
}
.card::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;opacity:0;
  background:radial-gradient(420px 220px at var(--mx,50%) var(--my,0%),rgba(34,211,238,.13),transparent 70%);
  transition:opacity .35s var(--ease);
}
.card:hover{border-color:var(--line-2);transform:translateY(-4px);box-shadow:var(--shadow)}
.card:hover::before{opacity:1}
.card--flat{background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.012))}
.card--brand{border-color:rgba(0,180,232,.30);background:linear-gradient(160deg,rgba(12,96,192,.20),rgba(0,180,232,.07) 60%,rgba(255,255,255,.012))}
.card__ic{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;margin-bottom:20px;
  border:1px solid rgba(0,180,232,.28);background:linear-gradient(150deg,rgba(12,96,192,.32),rgba(0,180,232,.10));
  color:var(--cyan-lt);
}
.card__ic svg{width:21px;height:21px}
.card .h4{margin-bottom:9px}
.card p{font-size:14.6px;color:var(--fg-2);line-height:1.75}
.card__num{
  position:absolute;top:18px;right:22px;font-family:var(--mono);font-size:11px;
  letter-spacing:.18em;color:var(--fg-4);
}

/* ---------- 8. Hero ---------- */
.hero{position:relative;padding:clamp(64px,8vw,112px) 0 clamp(56px,6vw,88px);overflow:hidden}
.hero__grid{display:grid;grid-template-columns:1.08fr .92fr;gap:clamp(36px,5vw,68px);align-items:center}
.hero .display{margin:20px 0 22px}
.hero__actions{display:flex;flex-wrap:wrap;gap:13px;margin-top:34px}
.hero__meta{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 30px;margin-top:44px;padding-top:26px;
  border-top:1px solid var(--line);
}
.hero__meta div{display:flex;flex-direction:column;gap:3px}
.hero__meta dt,.hero__meta .k{font-family:var(--mono);font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--fg-4)}
.hero__meta .v{font-size:20px;font-weight:700;letter-spacing:-.02em}
.hero__meta .v em{font-style:normal;font-size:13px;font-weight:500;color:var(--fg-3);margin-left:3px}

/* hero visual: layered module schematic */
.viz{position:relative;aspect-ratio:1/1.02;border-radius:var(--r-xl);border:1px solid var(--line);overflow:hidden;
  background:radial-gradient(ellipse 70% 60% at 50% 8%,rgba(0,156,228,.16),transparent 66%),linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.008));}
.viz::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(122,170,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(122,170,255,.07) 1px,transparent 1px);
  background-size:34px 34px;
  -webkit-mask-image:radial-gradient(ellipse 84% 74% at 50% 46%,#000 24%,transparent 100%);
          mask-image:radial-gradient(ellipse 84% 74% at 50% 46%,#000 24%,transparent 100%);
}
.viz__scan{
  position:absolute;left:0;right:0;height:34%;pointer-events:none;
  background:linear-gradient(180deg,transparent,rgba(34,211,238,.10) 45%,rgba(138,233,255,.20) 50%,rgba(34,211,238,.10) 55%,transparent);
  animation:scan 7.5s var(--ease) infinite;
}
@keyframes scan{0%{transform:translateY(-120%)}55%,100%{transform:translateY(330%)}}
.viz__inner{position:absolute;inset:0;display:grid;place-items:center;padding:8%}
.viz__inner img{width:80%;max-width:340px;height:auto;filter:drop-shadow(0 26px 50px rgba(0,90,180,.45))}
.viz__badge{
  position:absolute;z-index:2;display:flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;border:1px solid var(--line-2);
  background:rgba(6,12,24,.82);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--fg-2);
}
.viz__badge b{color:var(--cyan-lt);font-weight:600}
.viz__badge--tl{top:18px;left:18px}
.viz__badge--br{bottom:18px;right:18px}
.viz__dot{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(34,211,238,.16);animation:pulse 2.6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}

/* ---------- 9. Marquee strip ---------- */
.strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(6,11,22,.55);overflow:hidden}
.strip__track{display:flex;gap:0;width:max-content;animation:slide 38s linear infinite}
.strip:hover .strip__track{animation-play-state:paused}
.strip__item{
  display:flex;align-items:center;gap:12px;padding:19px 34px;white-space:nowrap;
  font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--fg-3);
  border-right:1px solid var(--line);
}
.strip__item b{color:var(--fg-2);font-weight:600}
.strip__item i{width:5px;height:5px;border-radius:50%;background:var(--sky);flex-shrink:0}
@keyframes slide{to{transform:translateX(-50%)}}

/* ---------- 10. Stats ---------- */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.01))}
.stat{padding:30px clamp(20px,2.4vw,32px);border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat__n{font-size:clamp(32px,3.6vw,46px);font-weight:800;letter-spacing:-.04em;line-height:1;display:flex;align-items:baseline;gap:4px}
.stat__n em{font-style:normal;font-size:15px;font-weight:650;color:var(--sky);letter-spacing:0}
.stat__l{margin-top:11px;font-size:13.6px;color:var(--fg-3);line-height:1.6}

/* ---------- 11. Product cards ---------- */
.prod{
  position:relative;display:flex;flex-direction:column;border-radius:var(--r-lg);border:1px solid var(--line);
  background:linear-gradient(170deg,rgba(255,255,255,.055),rgba(255,255,255,.012));overflow:hidden;
  transition:border-color .3s var(--ease),transform .3s var(--ease),box-shadow .3s var(--ease);
}
.prod:hover{border-color:rgba(0,180,232,.42);transform:translateY(-4px);box-shadow:var(--shadow)}
.prod__top{padding:26px 26px 0}
.prod__chip{
  display:inline-flex;align-items:center;gap:7px;padding:5px 12px;border-radius:999px;
  font-family:var(--mono);font-size:10.5px;letter-spacing:.15em;text-transform:uppercase;
  border:1px solid rgba(0,180,232,.3);background:rgba(0,156,228,.11);color:var(--cyan-lt);margin-bottom:17px;
}
.prod__body{padding:0 26px 26px;flex:1}
.prod__specs{margin-top:20px;border-top:1px solid var(--line);padding-top:16px;display:grid;gap:9px}
.prod__specs div{display:flex;justify-content:space-between;gap:16px;font-size:13.4px}
.prod__specs dt{color:var(--fg-3)}
.prod__specs dd{margin:0;font-family:var(--mono);color:var(--fg);font-variant-numeric:tabular-nums}
.prod__viz{
  height:112px;margin:0 26px 22px;border-radius:var(--r);border:1px solid var(--line);
  background:radial-gradient(ellipse 80% 100% at 50% 120%,rgba(0,156,228,.20),transparent 70%),rgba(255,255,255,.02);
  display:grid;place-items:center;overflow:hidden;
}
.prod__viz svg{width:36px;height:36px;color:var(--sky);opacity:.9}

/* ---------- 12. Spec table ---------- */
.table-wrap{border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:linear-gradient(180deg,rgba(255,255,255,.038),rgba(255,255,255,.012));max-width:100%}
.table-scroll{overflow-x:auto;max-width:100%;-webkit-overflow-scrolling:touch}
table.spec{min-width:660px;font-size:14px}
table.spec th,table.spec td{padding:15px 20px;text-align:left;border-bottom:1px solid var(--line)}
table.spec thead th{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--fg-3);font-weight:600;background:rgba(255,255,255,.032);white-space:nowrap;
}
table.spec tbody tr:last-child td{border-bottom:0}
table.spec tbody tr:hover{background:rgba(0,156,228,.055)}
table.spec td{color:var(--fg-2)}
table.spec td:first-child{color:var(--fg);font-weight:600}
table.spec td.num,table.spec th.num{font-family:var(--mono);font-variant-numeric:tabular-nums;text-align:right;white-space:nowrap}
table.spec .hl{color:var(--cyan-lt);font-weight:650}
.table-note{padding:14px 20px;font-size:12.5px;color:var(--fg-4);border-top:1px solid var(--line);background:rgba(0,0,0,.2)}

/* ---------- 13. Layer stack (module architecture) ---------- */
.stack{display:grid;gap:14px}
.layer{
  position:relative;display:grid;grid-template-columns:58px 1fr auto;gap:22px;align-items:center;
  padding:24px clamp(20px,2.4vw,30px);border-radius:var(--r-lg);border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(255,255,255,.05),rgba(255,255,255,.012));
  transition:border-color .3s var(--ease),transform .3s var(--ease),background .3s var(--ease);
}
.layer:hover{border-color:rgba(0,180,232,.4);transform:translateX(5px);background:linear-gradient(120deg,rgba(12,96,192,.16),rgba(255,255,255,.012))}
.layer__idx{
  width:58px;height:58px;border-radius:15px;display:grid;place-items:center;
  font-family:var(--mono);font-size:17px;font-weight:700;color:var(--cyan-lt);
  border:1px solid rgba(0,180,232,.3);background:linear-gradient(150deg,rgba(12,96,192,.34),rgba(0,180,232,.10));
}
.layer__t .h4{margin-bottom:6px}
.layer__t p{font-size:14.4px;color:var(--fg-2);line-height:1.7}
.layer__tags{display:flex;flex-wrap:wrap;gap:7px;justify-content:flex-end;max-width:260px}
.tag{
  display:inline-flex;align-items:center;justify-content:center;
  padding:5px 11px;border-radius:7px;font-family:var(--mono);font-size:11px;letter-spacing:.06em;
  border:1px solid var(--line-2);color:var(--fg-2);background:rgba(255,255,255,.03);white-space:nowrap;
}
.tag--hot{border-color:rgba(0,180,232,.4);background:rgba(0,156,228,.13);color:var(--cyan-lt)}

/* ---------- 14. Application tiles ---------- */
.app{
  position:relative;padding:clamp(24px,2.6vw,32px);border-radius:var(--r-lg);border:1px solid var(--line);
  background:linear-gradient(165deg,rgba(255,255,255,.05),rgba(255,255,255,.01));
  display:flex;flex-direction:column;gap:14px;overflow:hidden;
  transition:border-color .3s var(--ease),transform .3s var(--ease),box-shadow .3s var(--ease);
}
.app:hover{border-color:rgba(0,180,232,.4);transform:translateY(-4px);box-shadow:var(--shadow)}
.app__ic{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;border:1px solid rgba(0,180,232,.26);background:linear-gradient(150deg,rgba(12,96,192,.3),rgba(0,180,232,.09));color:var(--cyan-lt)}
.app__ic svg{width:20px;height:20px}
.app ul{display:grid;gap:6px;margin-top:3px}
.app li{position:relative;padding-left:15px;font-size:13.6px;color:var(--fg-3)}
.app li::before{content:"";position:absolute;left:0;top:9px;width:5px;height:5px;border-radius:1px;background:var(--sky);opacity:.75}

/* ---------- 15. Timeline ---------- */
.timeline{position:relative;display:grid;gap:0;padding-left:34px}
.timeline::before{content:"";position:absolute;left:9px;top:8px;bottom:8px;width:1px;background:linear-gradient(180deg,var(--sky),rgba(34,211,238,.14),transparent)}
.tl{position:relative;padding:0 0 34px}
.tl:last-child{padding-bottom:0}
.tl::before{
  content:"";position:absolute;left:-30px;top:7px;width:11px;height:11px;border-radius:50%;
  background:var(--bg);border:2px solid var(--sky);box-shadow:0 0 0 4px rgba(0,156,228,.14);
}
.tl__k{font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--sky);margin-bottom:7px}
.tl .h4{margin-bottom:7px}
.tl p{font-size:14.4px;color:var(--fg-2);line-height:1.72}

/* ---------- 16. People ---------- */
.people{display:grid;grid-template-columns:repeat(auto-fit,minmax(268px,1fr));gap:18px}
.person{
  padding:26px;border-radius:var(--r-lg);border:1px solid var(--line);
  background:linear-gradient(165deg,rgba(255,255,255,.05),rgba(255,255,255,.012));
  transition:border-color .3s var(--ease),transform .3s var(--ease);
}
.person:hover{border-color:rgba(0,180,232,.38);transform:translateY(-3px)}
.person__hd{display:flex;align-items:center;gap:15px;margin-bottom:16px}
.person__av{
  width:52px;height:52px;border-radius:14px;flex-shrink:0;display:grid;place-items:center;
  font-size:19px;font-weight:700;color:#fff;letter-spacing:-.02em;
  background:var(--brand);box-shadow:0 8px 22px -8px rgba(0,150,232,.7);
}
.person__n{font-size:17px;font-weight:700;letter-spacing:-.01em}
.person__r{font-size:12.5px;color:var(--sky);margin-top:4px;font-family:var(--mono);letter-spacing:.04em}
.person p{font-size:13.8px;color:var(--fg-2);line-height:1.72}
.person__tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:15px;padding-top:14px;border-top:1px solid var(--line)}
.person__tags span{font-size:11.5px;color:var(--fg-3);font-family:var(--mono)}

/* ---------- 17. Callout / CTA band ---------- */
.band{
  position:relative;border-radius:var(--r-xl);border:1px solid rgba(0,180,232,.26);overflow:hidden;
  padding:clamp(38px,5vw,68px);
  background:
    radial-gradient(ellipse 60% 120% at 12% 0%,rgba(12,96,192,.34),transparent 62%),
    radial-gradient(ellipse 50% 110% at 88% 100%,rgba(0,180,232,.24),transparent 60%),
    linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.012));
}
.band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(122,170,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(122,170,255,.07) 1px,transparent 1px);
  background-size:40px 40px;
  -webkit-mask-image:radial-gradient(ellipse 90% 100% at 50% 50%,#000 20%,transparent 90%);
          mask-image:radial-gradient(ellipse 90% 100% at 50% 50%,#000 20%,transparent 90%);
}
.band__in{position:relative;z-index:1}

/* ---------- 18. Notices ---------- */
.note{
  display:flex;gap:13px;padding:18px 22px;border-radius:var(--r);
  border:1px solid rgba(0,180,232,.24);background:rgba(0,156,228,.075);
  font-size:13.8px;color:var(--fg-2);line-height:1.72;
}
.note svg{width:17px;height:17px;flex-shrink:0;color:var(--sky);margin-top:3px}

/* ---------- 19. Contact ---------- */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(232px,1fr));gap:16px}
.cbox{
  padding:26px;border-radius:var(--r-lg);border:1px solid var(--line);
  background:linear-gradient(165deg,rgba(255,255,255,.05),rgba(255,255,255,.012));
  transition:border-color .3s var(--ease),transform .3s var(--ease);
}
.cbox:hover{border-color:rgba(0,180,232,.38);transform:translateY(-3px)}
.cbox__k{font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--fg-4);margin-bottom:13px}
.cbox__v{font-size:15.5px;font-weight:600;line-height:1.6;word-break:break-word}
.cbox__v a{border-bottom:1px solid rgba(0,180,232,.4);transition:color .2s,border-color .2s}
.cbox__v a:hover{color:var(--cyan-lt);border-color:var(--cyan-lt)}
.cbox p{margin-top:9px;font-size:13.4px;color:var(--fg-3);line-height:1.68}

.field{display:grid;gap:8px}
.field label{font-size:13px;color:var(--fg-2);font-weight:600}
.field input,.field textarea,.field select{
  width:100%;padding:13px 15px;border-radius:11px;font-family:inherit;font-size:14.5px;
  color:var(--fg);background:rgba(255,255,255,.035);border:1px solid var(--line);
  transition:border-color .22s var(--ease),background .22s var(--ease);outline:none;
}
.field textarea{resize:vertical;min-height:132px;line-height:1.7}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--sky);background:rgba(0,156,228,.07)}
.field input::placeholder,.field textarea::placeholder{color:var(--fg-4)}
.field select option{background:#0a1120;color:var(--fg)}

/* ---------- 20. Footer ---------- */
.footer{position:relative;z-index:1;margin-top:clamp(56px,7vw,96px);border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(6,11,22,.6),rgba(4,7,14,.95))}
.footer__main{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:clamp(28px,4vw,56px);padding:clamp(46px,5.5vw,72px) 0 44px}
.footer__brand p{margin-top:18px;font-size:13.8px;color:var(--fg-3);line-height:1.75;max-width:330px}
.footer__col h5{margin:0 0 16px;font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--fg-4);font-weight:600}
.footer__col a,.footer__col li{display:block;font-size:13.8px;color:var(--fg-2);padding:5px 0;transition:color .2s var(--ease)}
.footer__col a:hover{color:var(--cyan-lt)}
.footer__bar{
  display:flex;flex-wrap:wrap;gap:12px 26px;justify-content:space-between;align-items:center;
  padding:20px 0 30px;border-top:1px solid var(--line);font-size:12.7px;color:var(--fg-4);
}
.footer__bar a:hover{color:var(--fg-2)}
.footer__bar .mono{letter-spacing:.05em}

/* ---------- 21. Page hero (sub-pages) ---------- */
.phero{position:relative;padding:clamp(58px,7vw,96px) 0 clamp(40px,4.6vw,62px);border-bottom:1px solid var(--line);overflow:hidden}
.phero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.7;
  background:radial-gradient(ellipse 48% 76% at 82% 6%,rgba(0,180,232,.16),transparent 62%);
}
.phero .display{font-size:clamp(32px,4.6vw,54px);margin:18px 0 18px}
.phero__in{position:relative;z-index:1;max-width:840px}
.crumb{display:flex;align-items:center;gap:9px;font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;color:var(--fg-4);margin-bottom:20px}
.crumb a:hover{color:var(--sky)}
.crumb span{opacity:.5}

/* ---------- 22. Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
.reveal[data-d="1"]{transition-delay:.09s}
.reveal[data-d="2"]{transition-delay:.18s}
.reveal[data-d="3"]{transition-delay:.27s}
.reveal[data-d="4"]{transition-delay:.36s}
.reveal[data-d="5"]{transition-delay:.45s}
.reveal[data-d="6"]{transition-delay:.54s}

/* ---------- 23. Accordion ---------- */
.acc{border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.01))}
.acc__i{border-bottom:1px solid var(--line)}
.acc__i:last-child{border-bottom:0}
.acc__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:21px clamp(20px,2.4vw,28px);text-align:left;font-size:15.5px;font-weight:650;
  transition:background .22s var(--ease);
}
.acc__q:hover{background:rgba(255,255,255,.035)}
.acc__i.is-open .acc__q{color:#fff;background:rgba(0,156,228,.09)}
.acc__sign{position:relative;width:15px;height:15px;flex-shrink:0}
.acc__sign::before,.acc__sign::after{content:"";position:absolute;background:var(--sky);border-radius:2px;transition:transform .3s var(--ease)}
.acc__sign::before{top:6.9px;left:0;width:15px;height:1.5px}
.acc__sign::after{left:6.9px;top:0;width:1.5px;height:15px}
.acc__i.is-open .acc__sign::after{transform:scaleY(0)}
.acc__a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .36s var(--ease)}
.acc__i.is-open .acc__a{grid-template-rows:1fr}
.acc__a>div{overflow:hidden}
.acc__a p{padding:0 clamp(20px,2.4vw,28px) 22px;font-size:14.4px;color:var(--fg-2);line-height:1.78}

/* ---------- 23b. Tabs ---------- */
.tabs{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:28px}
.tabs button{
  padding:11px 20px;border-radius:11px;border:1px solid var(--line);
  font-size:14px;color:var(--fg-2);font-weight:600;
  transition:border-color .22s var(--ease),color .22s var(--ease),background .22s var(--ease);
}
.tabs button:hover{border-color:var(--line-2);color:var(--fg)}
.tabs button.is-active{
  background:linear-gradient(135deg,rgba(12,96,192,.92),rgba(0,180,232,.78));
  color:#fff;border-color:transparent;box-shadow:0 10px 26px -12px rgba(0,150,232,.75);
}
[data-pane][hidden]{display:none}

/* ---------- 24. Utility ---------- */
.mt-0{margin-top:0}.mt-1{margin-top:12px}.mt-2{margin-top:22px}.mt-3{margin-top:34px}.mt-4{margin-top:48px}
.mb-2{margin-bottom:22px}.mb-3{margin-bottom:34px}
.center{text-align:center}
.mx-auto{margin-left:auto;margin-right:auto}
.flex{display:flex}.wrap{flex-wrap:wrap}.gap-2{gap:13px}.gap-3{gap:20px}
.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}
.mw-720{max-width:720px}.mw-860{max-width:860px}
.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}

/* ---------- 25. Responsive ---------- */
@media (max-width:1080px){
  .hero__grid{grid-template-columns:1fr;gap:44px}
  .viz{max-width:520px;margin:0 auto;width:100%}
  .split{grid-template-columns:1fr;gap:36px}
  .footer__main{grid-template-columns:1fr 1fr;gap:34px}
  .g-4{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:880px){
  .nav-links,.nav-cta .btn{display:none}
  .burger{display:flex}
  .nav.is-open .drawer{display:block}
  .g-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .layer{grid-template-columns:52px 1fr;gap:18px}
  .layer__tags{grid-column:2;justify-content:flex-start;max-width:none}
}
@media (max-width:680px){
  html{scroll-padding-top:76px}
  body{font-size:15.4px}
  .nav-in{height:64px}
  .brand__mark{width:32px;height:32px}
  .brand__cn{font-size:14.5px;letter-spacing:.1em}
  .eyebrow{letter-spacing:.15em;font-size:10.5px}
  .hero__meta .v{font-size:17.5px}
  .hero__meta .v em{font-size:12px}
  .g-2,.g-3,.g-4{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid var(--line)}
  .stat:last-child{border-bottom:0}
  .hero__meta{gap:18px 26px}
  .footer__main{grid-template-columns:1fr}
  .table-scroll{margin:0 -1px}
  /* 窄屏下表格可横向滚动，用右缘渐隐提示还有内容 */
  .table-scroll{
    -webkit-mask-image:linear-gradient(90deg,#000 0,#000 calc(100% - 34px),rgba(0,0,0,.15) 100%);
            mask-image:linear-gradient(90deg,#000 0,#000 calc(100% - 34px),rgba(0,0,0,.15) 100%);
  }
  .band{padding:32px 24px}
  .card,.app,.person,.cbox{padding:22px}
  .prod__top{padding:22px 22px 0}
  .prod__body{padding:0 22px 22px}
  .prod__viz{margin:0 22px 18px}
  .strip__item{padding:16px 24px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}
@media print{
  body::before,body::after,.viz__scan{display:none}
  body{background:#fff;color:#111}
  .nav,.footer,.band{display:none}
}