/* ========== RESET & TOKENS ========== */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}

:root{
  --primary:#075c70;
  --primary-dark:#043a48;
  --primary-deep:#03262e;
  --accent:#2dd4bf;
  --accent-warm:#d4a952;
  --accent-warm-dark:#b8912e;
  --bg:#f4f8f9;
  --bg-card:#ffffff;
  --ink:#0f172a;
  --ink-2:#334155;
  --ink-3:#64748b;
  --line:rgba(7,92,112,.12);
  --radius:10px;
  --shadow-sm:0 1px 3px rgba(3,38,46,.06);
  --shadow:0 10px 40px -10px rgba(3,38,46,.14);
  --shadow-lg:0 30px 80px -20px rgba(3,38,46,.22);
  --ease:cubic-bezier(.22,1,.36,1);
}

html{scroll-behavior:smooth}
body{
  font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
ul{list-style:none}

.container{max-width:1200px;margin:0 auto;padding:0 32px}

/* ========== BUTTONS ========== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:15px 32px;border-radius:8px;font-size:15px;font-weight:600;
  letter-spacing:.5px;cursor:pointer;border:none;transition:all .35s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary) 0%,#0a7289 100%);
  color:#fff;box-shadow:0 8px 24px -6px rgba(7,92,112,.45);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px -6px rgba(7,92,112,.55)}
.btn-ghost{
  background:rgba(255,255,255,.1);color:#fff;
  border:1px solid rgba(255,255,255,.35);backdrop-filter:blur(8px);
}
.btn-ghost:hover{background:rgba(255,255,255,.2);border-color:rgba(255,255,255,.6)}
.btn-full{width:100%}

/* ========== NAV ========== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  padding:0;transition:all .4s var(--ease);
  background:transparent;
}
.nav-inner{
  max-width:1280px;margin:0 auto;padding:18px 32px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.nav.scrolled{
  background:rgba(255,255,255,.92);backdrop-filter:blur(16px);
  box-shadow:0 1px 0 rgba(7,92,112,.08),0 8px 32px -8px rgba(3,38,46,.1);
}
.nav.scrolled .nav-inner{padding:12px 32px}
.nav-brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-logo{width:44px;height:44px;object-fit:contain;border-radius:8px}
.nav-brand-text{display:flex;flex-direction:column;line-height:1.2}
.nav-brand-cn{font-size:17px;font-weight:700;color:#fff;letter-spacing:1px}
.nav-brand-en{font-size:9.5px;font-weight:500;color:rgba(255,255,255,.65);letter-spacing:1.5px}
.nav.scrolled .nav-brand-cn{color:var(--primary)}
.nav.scrolled .nav-brand-en{color:var(--ink-3)}
.nav-links{display:flex;gap:4px}
.nav-link{
  padding:10px 16px;font-size:14.5px;font-weight:500;color:rgba(255,255,255,.85);
  border-radius:6px;position:relative;transition:all .3s;
}
.nav-link::after{
  content:'';position:absolute;bottom:4px;left:16px;right:16px;height:2px;
  background:var(--accent);border-radius:2px;transform:scaleX(0);transition:transform .3s var(--ease);
}
.nav-link:hover{color:#fff}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav.scrolled .nav-link{color:var(--ink-2)}
.nav.scrolled .nav-link:hover,.nav.scrolled .nav-link.active{color:var(--primary)}
.nav.scrolled .nav-link.active{font-weight:600}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px}
.nav-toggle span{width:24px;height:2px;background:#fff;border-radius:2px;transition:all .3s}
.nav.scrolled .nav-toggle span{background:var(--primary)}

/* ========== HERO ========== */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:var(--primary-deep);overflow:hidden;
}
#heroCanvas{position:absolute;inset:0;width:100%;height:100%}
.hero-overlay{
  position:absolute;inset:0;
  background:
    radial-gradient(ellipse 60% 55% at 30% 50%,rgba(7,92,112,.55),transparent 70%),
    radial-gradient(ellipse 40% 40% at 80% 20%,rgba(45,212,191,.12),transparent 60%),
    linear-gradient(to bottom,rgba(3,38,46,.4) 0%,rgba(3,38,46,.1) 50%,var(--primary-deep) 100%);
}
.hero-content{
  position:relative;z-index:2;text-align:center;max-width:860px;
  padding:140px 32px 100px;
}
.hero-tag{
  display:inline-block;padding:8px 20px;border-radius:100px;
  background:rgba(45,212,191,.12);border:1px solid rgba(45,212,191,.3);
  color:var(--accent);font-size:13.5px;font-weight:500;letter-spacing:2px;
  margin-bottom:32px;animation:fadeUp 1s var(--ease) both;
}
.hero-title{
  font-size:clamp(42px,6.5vw,72px);font-weight:900;line-height:1.25;
  color:#fff;letter-spacing:2px;margin-bottom:28px;
  animation:fadeUp 1s var(--ease) .15s both;
}
.hero-title em{
  font-style:normal;
  background:linear-gradient(120deg,#fff 20%,var(--accent) 60%,var(--accent-warm) 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.hero-desc{
  font-size:17px;color:rgba(255,255,255,.72);line-height:1.9;
  max-width:640px;margin:0 auto 44px;font-weight:300;
  animation:fadeUp 1s var(--ease) .3s both;
}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;animation:fadeUp 1s var(--ease) .45s both}
.hero-stats{
  display:flex;justify-content:center;gap:56px;margin-top:72px;
  animation:fadeUp 1s var(--ease) .6s both;
}
.hero-stat{display:flex;flex-direction:column;align-items:center;gap:4px}
.hero-stat strong{
  font-size:34px;font-weight:800;color:#fff;font-family:'Outfit',sans-serif;
}
.hero-stat span{font-size:13px;color:rgba(255,255,255,.55);letter-spacing:1px}
.hero-scroll{
  position:absolute;bottom:32px;left:50%;transform:translateX(-50%);z-index:2;
  width:26px;height:44px;border:2px solid rgba(255,255,255,.3);border-radius:14px;
  animation:fadeUp 1s var(--ease) .8s both;
}
.hero-scroll span{
  position:absolute;top:8px;left:50%;width:4px;height:8px;margin-left:-2px;
  background:var(--accent);border-radius:4px;animation:scrollDot 2s ease-in-out infinite;
}
@keyframes scrollDot{0%,100%{transform:translateY(0);opacity:1}50%{transform:translateY(16px);opacity:.3}}
@keyframes fadeUp{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:translateY(0)}}

/* ========== MARQUEE ========== */
.marquee{
  background:var(--primary);padding:18px 0;overflow:hidden;position:relative;
}
.marquee-track{
  display:flex;align-items:center;gap:48px;white-space:nowrap;
  animation:marquee 30s linear infinite;width:max-content;
}
.marquee-track span{
  color:rgba(255,255,255,.75);font-size:14px;font-weight:500;letter-spacing:2px;
}
.marquee-track i{
  width:6px;height:6px;border-radius:50%;background:var(--accent-warm);flex-shrink:0;
}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ========== SECTIONS ========== */
.section{padding:110px 0}
.section-head{text-align:center;max-width:680px;margin:0 auto 64px}
.section-eyebrow{
  display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:3px;
  text-transform:uppercase;color:var(--primary);font-family:'Outfit',sans-serif;
  padding:6px 16px;background:rgba(7,92,112,.07);border-radius:100px;margin-bottom:18px;
}
.section-title{font-size:38px;font-weight:800;color:var(--ink);letter-spacing:1px;margin-bottom:14px}
.section-sub{font-size:16px;color:var(--ink-3)}

/* reveal animation */
.reveal{opacity:0;transform:translateY(36px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ========== ABOUT ========== */
.about{background:var(--bg)}
.about-grid{
  display:grid;grid-template-columns:1fr 1.25fr;gap:72px;align-items:center;margin-bottom:72px;
}
.about-img-wrap{
  position:relative;max-width:420px;margin:0 auto;
}
.about-img-wrap img{
  width:100%;border-radius:20px;box-shadow:var(--shadow-lg);
  border:1px solid rgba(255,255,255,.6);
}
.about-img-deco{
  position:absolute;inset:-24px;z-index:-1;border-radius:28px;
  background:linear-gradient(135deg,rgba(7,92,112,.08),rgba(45,212,191,.1));
  transform:rotate(-3deg);
}
.about-text h3{
  font-size:26px;font-weight:800;color:var(--primary);margin-bottom:20px;letter-spacing:.5px;
}
.about-text p{color:var(--ink-2);margin-bottom:18px;font-size:15.5px;line-height:1.95}
.about-values{
  display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:32px;
}
.value-item{
  display:flex;gap:14px;align-items:flex-start;padding:16px;
  background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--line);
  transition:all .3s var(--ease);
}
.value-item:hover{box-shadow:var(--shadow);transform:translateY(-2px);border-color:rgba(7,92,112,.25)}
.value-icon{
  width:40px;height:40px;flex-shrink:0;border-radius:10px;
  background:linear-gradient(135deg,var(--primary),#0a7289);
  display:flex;align-items:center;justify-content:center;color:#fff;
}
.value-icon svg{width:20px;height:20px}
.value-item h4{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:2px}
.value-item p{font-size:12.5px;color:var(--ink-3);margin:0}
.about-mission{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.mission-card{
  padding:36px 40px;border-radius:14px;position:relative;overflow:hidden;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
  color:#fff;
}
.mission-card:last-child{
  background:linear-gradient(135deg,#0f766e 0%,#0d9488 100%);
}
.mission-card::after{
  content:'';position:absolute;top:-40px;right:-40px;width:160px;height:160px;
  border-radius:50%;background:rgba(255,255,255,.06);
}
.mission-label{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:3px;
  color:var(--accent-warm);margin-bottom:12px;text-transform:uppercase;
}
.mission-card p{font-size:17px;font-weight:500;line-height:1.8;color:rgba(255,255,255,.92)}

/* ========== SOLUTIONS ========== */
.solutions{
  background:
    radial-gradient(ellipse 70% 45% at 50% -5%,rgba(7,92,112,.05),transparent 65%),
    var(--bg);
}
.solutions-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.solution-card{
  background:var(--bg-card);border-radius:14px;padding:36px 32px;
  border:1px solid var(--line);position:relative;overflow:hidden;
  transition:all .4s var(--ease);display:flex;flex-direction:column;
}
.solution-card:hover{
  transform:translateY(-6px);box-shadow:var(--shadow-lg);
  border-color:rgba(7,92,112,.3);
}
.solution-card.featured{grid-column:span 2;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);border:none;color:#fff}
.solution-num{
  position:absolute;top:20px;right:24px;font-size:52px;font-weight:800;
  font-family:'Outfit',sans-serif;color:rgba(7,92,112,.06);line-height:1;
  transition:color .4s;
}
.solution-card:hover .solution-num{color:rgba(7,92,112,.12)}
.solution-card.featured .solution-num{color:rgba(255,255,255,.1)}
.solution-icon{
  width:52px;height:52px;border-radius:12px;margin-bottom:22px;
  background:linear-gradient(135deg,rgba(7,92,112,.08),rgba(45,212,191,.1));
  display:flex;align-items:center;justify-content:center;color:var(--primary);
}
.solution-card.featured .solution-icon{background:rgba(255,255,255,.12);color:var(--accent)}
.solution-icon svg{width:26px;height:26px}
.solution-card h3{font-size:19px;font-weight:700;margin-bottom:10px;letter-spacing:.3px}
.solution-oneliner{font-size:14px;color:var(--ink-3);margin-bottom:18px}
.solution-card.featured .solution-oneliner{color:rgba(255,255,255,.75)}
.solution-detail{flex:1;display:flex;flex-direction:column;gap:4px}
.solution-detail h5{
  font-size:12px;font-weight:600;color:var(--primary);letter-spacing:1.5px;margin-top:10px;
}
.solution-card.featured .solution-detail h5{color:var(--accent)}
.solution-detail p{font-size:13.5px;color:var(--ink-2);line-height:1.8}
.solution-card.featured .solution-detail p{color:rgba(255,255,255,.8)}
.solution-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.solution-tags span{
  padding:5px 12px;border-radius:100px;font-size:12px;font-weight:500;
  background:rgba(7,92,112,.07);color:var(--primary);
}
.solution-card.featured .solution-tags span{background:rgba(255,255,255,.14);color:#fff}

/* ========== PRODUCTS ========== */
.products{
  background:
    radial-gradient(ellipse 55% 45% at 100% 20%,rgba(45,212,191,.06),transparent 60%),
    radial-gradient(ellipse 45% 40% at 0% 80%,rgba(7,92,112,.05),transparent 60%),
    #fff;
}
.product-hero{
  display:grid;grid-template-columns:1fr 1.1fr;gap:80px;align-items:center;
  padding-bottom:96px;margin-bottom:96px;border-bottom:1px solid var(--line);
}
.watch-scene{
  position:relative;width:360px;height:440px;margin:0 auto;
  display:flex;align-items:center;justify-content:center;
}
.watch-ring{
  position:absolute;width:340px;height:340px;border-radius:50%;
  border:1px solid rgba(7,92,112,.15);
  animation:spin 24s linear infinite;
}
.watch-ring::before{
  content:'';position:absolute;top:-4px;left:50%;width:8px;height:8px;
  border-radius:50%;background:var(--accent);
}
.watch-ring.r2{
  width:400px;height:400px;animation-duration:36s;animation-direction:reverse;
  border-style:dashed;opacity:.5;
}
.watch-ring.r2::before{background:var(--accent-warm)}
@keyframes spin{to{transform:rotate(360deg)}}
.watch-glow{
  position:absolute;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(45,212,191,.22),transparent 65%);
  filter:blur(20px);
}
.watch-body{position:relative;z-index:2;animation:float 5s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}
.watch-strap{
  width:96px;height:72px;margin:0 auto;
  background:linear-gradient(180deg,#1a2e35,#0d1b20);
}
.watch-strap.top{border-radius:16px 16px 4px 4px;margin-bottom:-6px;
  background:linear-gradient(180deg,#24383f,#15262c)}
.watch-strap.bottom{border-radius:4px 4px 16px 16px;margin-top:-6px;
  background:linear-gradient(180deg,#15262c,#24383f)}
.watch-screen{
  width:230px;height:230px;border-radius:26px;position:relative;
  background:linear-gradient(150deg,#0d2027 0%,#0a181d 100%);
  border:6px solid #1e3239;
  box-shadow:
    0 0 0 2px rgba(45,212,191,.2),
    0 30px 60px -12px rgba(3,38,46,.5),
    inset 0 1px 0 rgba(255,255,255,.08);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  color:#fff;overflow:hidden;
}
.watch-screen::before{
  content:'';position:absolute;top:-50%;left:-60%;width:80%;height:200%;
  background:linear-gradient(105deg,transparent,rgba(255,255,255,.06),transparent);
  transform:rotate(10deg);
}
.watch-time{font-family:'Outfit',sans-serif;font-size:44px;font-weight:700;letter-spacing:1px;
  background:linear-gradient(180deg,#fff,#7dd8cc);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.watch-hr{width:130px;height:26px;color:var(--accent)}
.watch-hr svg{width:100%;height:100%;animation:hrPulse 2s ease-in-out infinite}
@keyframes hrPulse{0%,100%{opacity:1}50%{opacity:.5}}
.watch-metrics{display:flex;gap:28px}
.watch-metrics div{display:flex;flex-direction:column;align-items:center}
.watch-metrics strong{font-family:'Outfit',sans-serif;font-size:18px;font-weight:700;color:#fff}
.watch-metrics span{font-size:11px;color:rgba(255,255,255,.5)}
.product-badge{
  display:inline-block;padding:6px 16px;border-radius:100px;font-size:12.5px;
  font-weight:600;letter-spacing:2px;color:var(--accent-warm-dark);
  background:rgba(212,169,82,.12);margin-bottom:18px;
}
.product-hero-text h3,.product-os-text h3{
  font-size:32px;font-weight:800;color:var(--ink);letter-spacing:.5px;margin-bottom:10px;
}
.product-slogan{font-size:16px;font-weight:500;color:var(--primary);margin-bottom:24px}
.product-specs{
  display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:28px;
}
.product-specs li{
  text-align:center;padding:16px 8px;background:var(--bg);border-radius:var(--radius);
  border:1px solid var(--line);
}
.product-specs strong{
  display:block;font-size:22px;font-weight:800;color:var(--primary);font-family:'Outfit',sans-serif;
}
.product-specs span{font-size:12px;color:var(--ink-3)}
.product-desc{font-size:15px;color:var(--ink-2);line-height:1.9}

/* OS section */
.product-os{display:grid;grid-template-columns:1.05fr 1fr;gap:80px;align-items:center}
.os-features{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:32px}
.os-feature{
  display:flex;gap:14px;align-items:flex-start;padding:18px;
  background:var(--bg);border-radius:var(--radius);border:1px solid var(--line);
  transition:all .3s var(--ease);
}
.os-feature:hover{box-shadow:var(--shadow);border-color:rgba(7,92,112,.25)}
.os-feature-icon{
  width:42px;height:42px;flex-shrink:0;border-radius:10px;
  background:linear-gradient(135deg,var(--primary),#0a7289);color:#fff;
  display:flex;align-items:center;justify-content:center;
}
.os-feature-icon svg{width:20px;height:20px}
.os-feature h4{font-size:14.5px;font-weight:700;margin-bottom:2px}
.os-feature p{font-size:12.5px;color:var(--ink-3);margin:0}

/* OS Dashboard mock */
.os-dashboard{
  background:#fff;border-radius:16px;overflow:hidden;
  border:1px solid rgba(7,92,112,.1);
  box-shadow:0 40px 90px -20px rgba(3,38,46,.28);
  display:flex;height:400px;
  transform:perspective(1200px) rotateY(-6deg) rotateX(2deg);
  transition:transform .6s var(--ease);
}
.os-dashboard:hover{transform:perspective(1200px) rotateY(-2deg) rotateX(0deg)}
.os-dash-sidebar{
  width:60px;background:linear-gradient(180deg,var(--primary),var(--primary-dark));
  padding:16px 0;display:flex;flex-direction:column;align-items:center;gap:14px;flex-shrink:0;
}
.os-dash-logo{width:30px;height:30px;border-radius:8px;background:rgba(255,255,255,.2)}
.os-dash-nav-item{width:32px;height:32px;border-radius:8px;background:rgba(255,255,255,.08)}
.os-dash-nav-item.active{background:var(--accent);opacity:.9}
.os-dash-main{flex:1;padding:20px;display:flex;flex-direction:column;gap:14px;overflow:hidden;background:#f8fbfb}
.os-dash-header{display:flex;justify-content:space-between;align-items:center}
.os-dash-title{width:120px;height:16px;border-radius:4px;background:#dce8ea}
.os-dash-search{width:150px;height:28px;border-radius:14px;background:#eef4f5;border:1px solid #e2ecee}
.os-dash-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.os-dash-card{
  background:#fff;border-radius:10px;padding:12px 14px;border:1px solid #e8f0f1;
}
.os-dash-card-label{font-size:11px;color:var(--ink-3)}
.os-dash-card strong{
  display:block;font-size:20px;font-weight:800;color:var(--ink);
  font-family:'Outfit',sans-serif;margin:2px 0;
}
.os-dash-trend{font-size:11px;font-weight:600}
.os-dash-trend.up{color:#0d9488}
.os-dash-chart{
  background:#fff;border-radius:10px;padding:14px;border:1px solid #e8f0f1;flex:1;
  display:flex;flex-direction:column;
}
.os-dash-chart-title{font-size:12px;font-weight:600;color:var(--ink-2);margin-bottom:8px}
.os-dash-chart svg{flex:1;width:100%;min-height:60px}
.os-dash-table{background:#fff;border-radius:10px;border:1px solid #e8f0f1;overflow:hidden}
.os-dash-row{
  display:grid;grid-template-columns:1fr 60px 90px;padding:9px 14px;font-size:12px;
  color:var(--ink-2);border-bottom:1px solid #f0f5f6;align-items:center;
}
.os-dash-row:last-child{border-bottom:none}
.os-dash-row.head{background:#f4f8f9;font-weight:600;color:var(--ink-3);font-size:11px}
.dot{width:8px;height:8px;border-radius:50%;display:inline-block}
.dot.good{background:#10b981}
.dot.warn{background:#f59e0b}

/* ========== NEWS ========== */
.news{background:var(--bg)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:var(--bg-card);border-radius:14px;overflow:hidden;
  border:1px solid var(--line);transition:all .4s var(--ease);
  display:flex;flex-direction:column;
}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.news-card.main{grid-column:span 2;flex-direction:row}
.news-card.main .news-img{width:45%;min-height:280px;flex-shrink:0}
.news-card.main .news-body{padding:40px 36px;justify-content:center}
.news-card.main h3{font-size:21px}
.news-img{
  height:180px;position:relative;overflow:hidden;
}
.news-img-pattern{
  position:absolute;inset:0;opacity:.15;
  background-image:
    radial-gradient(circle at 20% 30%,rgba(255,255,255,.4) 1.5px,transparent 1.5px),
    radial-gradient(circle at 70% 60%,rgba(255,255,255,.3) 1px,transparent 1px),
    linear-gradient(45deg,transparent 48%,rgba(255,255,255,.15) 49%,rgba(255,255,255,.15) 51%,transparent 52%);
  background-size:40px 40px,28px 28px,60px 60px;
}
.news-img-pattern.p2{background-image:linear-gradient(90deg,rgba(255,255,255,.12) 1px,transparent 1px),linear-gradient(rgba(255,255,255,.12) 1px,transparent 1px);background-size:28px 28px;opacity:.35}
.news-img-pattern.p3{background-image:radial-gradient(circle,rgba(255,255,255,.35) 1.5px,transparent 1.5px);background-size:22px 22px;opacity:.3}
.news-img-pattern.p4{background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.1) 0 2px,transparent 2px 14px);opacity:.4}
.news-badge{
  position:absolute;top:16px;left:16px;padding:5px 14px;border-radius:100px;
  background:rgba(255,255,255,.18);backdrop-filter:blur(8px);
  color:#fff;font-size:12px;font-weight:600;letter-spacing:1px;
}
.news-body{padding:26px 28px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-body time{
  font-size:12.5px;color:var(--accent-warm-dark);font-weight:600;
  font-family:'Outfit',sans-serif;letter-spacing:.5px;
}
.news-body h3{font-size:16.5px;font-weight:700;line-height:1.6;color:var(--ink)}
.news-body p{font-size:13.5px;color:var(--ink-3);line-height:1.8;flex:1}
.news-link{font-size:13.5px;font-weight:600;color:var(--primary);margin-top:6px}

/* ========== CONTACT ========== */
.contact{
  background:
    radial-gradient(ellipse 60% 50% at 0% 0%,rgba(7,92,112,.06),transparent 60%),
    #fff;
}
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:72px;align-items:start}
.contact-info{display:flex;flex-direction:column;gap:8px}
.contact-item{
  display:flex;gap:18px;align-items:flex-start;padding:22px 24px;
  border-radius:var(--radius);transition:all .3s var(--ease);
}
.contact-item:hover{background:var(--bg);box-shadow:var(--shadow-sm)}
.contact-icon{
  width:48px;height:48px;flex-shrink:0;border-radius:12px;
  background:linear-gradient(135deg,var(--primary),#0a7289);color:#fff;
  display:flex;align-items:center;justify-content:center;
}
.contact-icon svg{width:22px;height:22px}
.contact-item h4{font-size:15px;font-weight:700;margin-bottom:3px}
.contact-item p{font-size:14.5px;color:var(--ink-2)}
.contact-item a{color:var(--primary);font-weight:600}
.contact-social{margin-top:16px;padding-left:24px}
.qr-placeholder{
  display:flex;flex-direction:column;align-items:center;gap:10px;
  width:150px;padding:18px;background:var(--bg);border-radius:var(--radius);
  border:1px dashed rgba(7,92,112,.3);color:var(--primary);
}
.qr-placeholder svg{width:80px;height:80px}
.qr-placeholder span{font-size:12px;color:var(--ink-3)}
.contact-form{
  background:var(--bg-card);padding:44px;border-radius:16px;
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.form-title{font-size:22px;font-weight:800;margin-bottom:6px}
.form-sub{font-size:14px;color:var(--ink-3);margin-bottom:30px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-group{margin-bottom:20px}
.form-group label{
  display:block;font-size:13.5px;font-weight:600;color:var(--ink-2);margin-bottom:8px;
}
.form-group input,.form-group textarea{
  width:100%;padding:13px 16px;border:1.5px solid #e2e8f0;border-radius:8px;
  font-size:14.5px;font-family:inherit;color:var(--ink);background:#fbfdfe;
  transition:all .3s;resize:vertical;
}
.form-group input:focus,.form-group textarea:focus{
  outline:none;border-color:var(--primary);background:#fff;
  box-shadow:0 0 0 4px rgba(7,92,112,.08);
}
.form-group input::placeholder,.form-group textarea::placeholder{color:#a3b3bd}
.form-success{
  display:none;margin-top:16px;padding:12px 16px;border-radius:8px;
  background:rgba(13,148,136,.1);color:#0d9488;font-size:14px;font-weight:600;
  text-align:center;
}
.form-success.show{display:block;animation:fadeUp .5s var(--ease)}

/* ========== FOOTER ========== */
.footer{background:var(--primary-deep);color:rgba(255,255,255,.7);padding:72px 0 0}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:48px;
  padding-bottom:56px;border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand img{width:150px;border-radius:12px;margin-bottom:18px}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.55)}
.footer-col h4{
  font-size:14px;font-weight:700;color:#fff;letter-spacing:2px;margin-bottom:20px;
  padding-bottom:12px;position:relative;
}
.footer-col h4::after{
  content:'';position:absolute;bottom:0;left:0;width:24px;height:2px;
  background:var(--accent-warm);border-radius:2px;
}
.footer-col a,.footer-col p{
  display:block;font-size:13.5px;color:rgba(255,255,255,.6);
  margin-bottom:12px;line-height:1.8;transition:color .3s;
}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  padding:24px 0;font-size:12.5px;color:rgba(255,255,255,.4);
}

/* ========== RESPONSIVE ========== */
@media(max-width:1080px){
  .solutions-grid{grid-template-columns:1fr 1fr}
  .solution-card.featured{grid-column:span 2}
  .product-hero,.product-os{grid-template-columns:1fr;gap:56px}
  .product-os-text{order:-1}
  .news-grid{grid-template-columns:1fr 1fr}
  .news-card.main{grid-column:span 2}
  .contact-grid{grid-template-columns:1fr;gap:48px}
  .about-grid{grid-template-columns:1fr;gap:48px}
}
@media(max-width:820px){
  .section{padding:80px 0}
  .container{padding:0 22px}
  .nav-toggle{display:flex}
  .nav-links{
    position:fixed;top:0;right:0;bottom:0;width:min(320px,85vw);
    background:rgba(3,38,46,.98);backdrop-filter:blur(20px);
    flex-direction:column;padding:100px 32px 40px;gap:8px;
    transform:translateX(100%);transition:transform .45s var(--ease);z-index:-1;
  }
  .nav-links.open{transform:translateX(0)}
  .nav-link{padding:14px 18px;font-size:16px;color:rgba(255,255,255,.85)!important}
  .nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle.active span:nth-child(2){opacity:0}
  .nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .hero-stats{gap:32px;flex-wrap:wrap}
  .hero-stat strong{font-size:26px}
  .section-title{font-size:30px}
  .about-values,.about-mission{grid-template-columns:1fr}
  .solutions-grid{grid-template-columns:1fr}
  .solution-card.featured{grid-column:span 1}
  .news-grid{grid-template-columns:1fr}
  .news-card.main{grid-column:span 1;flex-direction:column}
  .news-card.main .news-img{width:100%;min-height:200px}
  .product-specs{grid-template-columns:1fr 1fr}
  .os-features{grid-template-columns:1fr}
  .watch-scene{transform:scale(.82)}
  .form-row{grid-template-columns:1fr}
  .contact-form{padding:30px 24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-bottom{justify-content:center;text-align:center}
}
@media(max-width:480px){
  .footer-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .watch-scene{transform:scale(.68);height:360px}
}