/* ==========================================================================
   观昱机电技术（上海）有限公司 — 官方网站
   Style: Minimal B2B / deep sapphire
   ========================================================================== */

:root{
  --page:#071a33;
  --surface:#0a2547;
  --surface-2:#0b2a50;
  --surface-3:#10345f;
  --ink:#0b2545;
  --strong:#edf3fb;
  --text:#c6d5e8;
  --muted:#9db0c8;
  --muted-2:#7e93b1;
  --line:rgba(255,255,255,.11);
  --line-2:rgba(255,255,255,.17);
  --paper:#071a33;
  --paper-2:rgba(255,255,255,.05);
  --paper-3:rgba(255,255,255,.08);
  --accent:#4a8fdc;
  --accent-soft:#a9cbee;
  --danger:#e0847a;
  --container:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow:0 30px 70px -32px rgba(0,0,0,.6);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:88px;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:15px;
  line-height:1.6;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;color:inherit;}
input,textarea{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,blockquote{margin:0;padding:0;}
ul,ol{list-style:none;}
::selection{background:var(--accent);color:#fff;}

.icon-sprite{position:absolute;width:0;height:0;overflow:hidden;}
.ic{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex:none;}
.serif{font-family:"Iowan Old Style","Palatino Linotype","Times New Roman",Georgia,serif;font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:clamp(72px,8.5vw,124px) 0;}

/* ---------- shared buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:15px 28px;
  font-size:14px;font-weight:500;letter-spacing:.02em;line-height:1;
  border:1px solid transparent;border-radius:2px;
  cursor:pointer;transition:background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease),transform .3s var(--ease),box-shadow .3s var(--ease);
}
.btn .ic{width:16px;height:16px;transition:transform .3s var(--ease);}
.btn:hover .ic{transform:translateX(4px);}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:#5da2ec;box-shadow:0 14px 30px -14px rgba(0,0,0,.55);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.32);}
.btn-ghost:hover{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.6);}

/* ---------- brand ---------- */
.brand{display:inline-flex;align-items:center;gap:13px;}
.brand-mark{
  width:34px;height:34px;flex:none;position:relative;
  border:1.5px solid currentColor;
  transition:border-color .3s var(--ease);
}
.brand-mark i{
  position:absolute;left:50%;top:50%;width:10px;height:10px;margin:-5px 0 0 -5px;
  background:var(--accent);display:block;
  transition:transform .45s var(--ease);
}
.brand:hover .brand-mark i{transform:rotate(45deg) scale(1.08);}
.brand-text strong{display:block;font-size:16.5px;font-weight:600;letter-spacing:.06em;line-height:1.2;}
.brand-text em{display:block;font-style:normal;font-size:8px;letter-spacing:.16em;opacity:.55;margin-top:4px;white-space:nowrap;}

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  color:#fff;
  transition:background .35s var(--ease),color .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
  border-bottom:1px solid transparent;
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;height:88px;transition:height .35s var(--ease);}
.main-nav ul{display:flex;align-items:center;gap:34px;}
.nav-link{
  position:relative;display:inline-block;
  font-size:14px;letter-spacing:.03em;opacity:.78;
  padding:6px 0;transition:opacity .25s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;
  background:currentColor;transition:width .35s var(--ease);
}
.nav-link:hover{opacity:1;}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{opacity:1;}
.nav-link.is-active::after{width:100%;background:var(--accent);}
.header-actions{display:flex;align-items:center;gap:22px;flex:none;}
.header-tel{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.03em;opacity:.8;transition:opacity .25s;}
.header-tel .ic{width:15px;height:15px;}
.header-tel:hover{opacity:1;}
.lang-switch{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:500;letter-spacing:.08em;line-height:1;white-space:nowrap;}
.lang-switch button{
  position:relative;background:none;border:0;padding:4px 1px;
  font-size:inherit;font-weight:inherit;letter-spacing:inherit;line-height:1;
  color:inherit;opacity:.55;cursor:pointer;
  transition:opacity .25s var(--ease),color .25s var(--ease);
}
.lang-switch button::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:currentColor;transform:scaleX(0);transform-origin:left;
  transition:transform .3s var(--ease);
}
.lang-switch button:hover{opacity:1;}
.lang-switch button.is-active{opacity:1;color:var(--accent-soft);}
.lang-switch button.is-active::after{transform:scaleX(1);}
.lang-switch button:focus-visible{outline:2px solid var(--accent-soft);outline-offset:3px;}
.lang-switch .lang-sep{opacity:.3;font-size:10px;}
.lang-switch--mobile{font-size:13px;letter-spacing:.1em;margin-bottom:2px;}
.btn-header{
  padding:10px 20px;font-size:13px;white-space:nowrap;
  border:1px solid rgba(255,255,255,.4);color:#fff;background:transparent;border-radius:2px;
  transition:background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease);
}
.btn-header:hover{background:#fff;color:#0b2545;border-color:#fff;}
.menu-toggle{
  display:none;width:42px;height:42px;align-items:center;justify-content:center;
  background:transparent;border:1px solid rgba(255,255,255,.3);cursor:pointer;border-radius:2px;
}
.menu-toggle .ic{width:22px;height:22px;}

.site-header.is-scrolled{
  background:rgba(6,23,47,.92);
  -webkit-backdrop-filter:blur(16px) saturate(1.2);
  backdrop-filter:blur(16px) saturate(1.2);
  color:var(--strong);
  border-bottom-color:rgba(255,255,255,.09);
  box-shadow:0 8px 34px rgba(0,0,0,.28);
}
.site-header.is-scrolled .header-inner{height:72px;}
.site-header.is-scrolled .btn-header{border-color:rgba(255,255,255,.35);color:var(--strong);}
.site-header.is-scrolled .btn-header:hover{background:#fff;color:#0b2545;border-color:#fff;}
.site-header.is-scrolled .menu-toggle{border-color:rgba(255,255,255,.28);}

/* ==========================================================================
   MOBILE NAV
   ========================================================================== */
.mobile-nav{
  position:fixed;top:0;right:0;bottom:0;z-index:150;
  width:min(360px,86vw);background:var(--surface);
  display:flex;flex-direction:column;
  padding:24px;
  transform:translateX(101%);
  transition:transform .42s var(--ease);
  box-shadow:-24px 0 70px rgba(0,0,0,.4);
  color:var(--text);
}
.mobile-nav.open{transform:translateX(0);}
.mobile-nav-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:20px;border-bottom:1px solid var(--line);}
.mobile-nav-title{font-size:11px;letter-spacing:.24em;color:var(--muted-2);}
.mobile-nav-close{width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:transparent;border:1px solid var(--line);cursor:pointer;border-radius:2px;}
.mobile-nav nav{margin-top:12px;display:flex;flex-direction:column;}
.mobile-nav nav a{
  padding:15px 4px;font-size:16px;border-bottom:1px solid var(--line);
  transition:padding-left .28s var(--ease),color .28s var(--ease);
}
.mobile-nav nav a:hover{padding-left:10px;color:var(--accent);}
.mobile-nav-foot{margin-top:auto;padding-top:24px;display:flex;flex-direction:column;gap:10px;}
.mobile-nav-foot a{font-size:13px;color:var(--muted);}
.mobile-nav-foot .btn{margin-top:8px;color:#fff;}
.overlay-scrim{
  position:fixed;inset:0;z-index:140;background:rgba(4,16,34,.55);
  opacity:0;visibility:hidden;transition:opacity .35s var(--ease),visibility .35s;
}
.overlay-scrim.open{opacity:1;visibility:visible;}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero{
  position:relative;min-height:100svh;
  display:flex;align-items:center;
  padding:150px 0 92px;
  background:#071a33;color:#fff;overflow:hidden;
}
.hero-media{position:absolute;inset:0;background:#071a33;}
.hero-media img{width:100%;height:100%;object-fit:cover;opacity:.58;filter:grayscale(.55) contrast(1.05) brightness(.95);}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(4,17,36,.93) 0%,rgba(4,17,36,.74) 40%,rgba(4,17,36,.38) 74%,rgba(4,17,36,.58) 100%),
    linear-gradient(0deg,rgba(4,17,36,.85) 0%,rgba(4,17,36,0) 45%);
}
.hero-inner{position:relative;z-index:2;}
.hero-content{max-width:800px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:14px;
  font-size:10.5px;font-weight:600;letter-spacing:.28em;
  color:var(--accent-soft);text-transform:uppercase;
}
.eyebrow::before{content:"";width:34px;height:1px;background:currentColor;flex:none;}
.hero h1{
  margin-top:26px;
  font-size:clamp(36px,5.4vw,72px);
  font-weight:600;line-height:1.14;letter-spacing:-.015em;
}
.hero-h1-sub{
  display:block;margin-top:20px;
  font-size:clamp(19px,2.35vw,31px);
  font-weight:400;line-height:1.55;letter-spacing:.01em;
  color:rgba(255,255,255,.7);
}
.hero-desc{margin-top:26px;font-size:15.5px;line-height:1.95;color:rgba(255,255,255,.6);max-width:660px;}
.hero-actions{margin-top:40px;display:flex;gap:14px;flex-wrap:wrap;}
.hero .btn-primary{background:#fff;color:#0b2545;}
.hero .btn-primary:hover{background:var(--accent);color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px -16px rgba(0,0,0,.7);}

.hero-stats{
  margin-top:64px;padding-top:34px;
  border-top:1px solid rgba(255,255,255,.15);
  display:grid;grid-template-columns:repeat(4,1fr);gap:28px;
  max-width:820px;
}
.stat-num{display:flex;align-items:baseline;gap:2px;line-height:1;}
.stat-num b{font-size:clamp(26px,2.9vw,38px);font-weight:500;letter-spacing:-.02em;font-variant-numeric:tabular-nums;}
.stat-num i{font-style:normal;font-size:13px;color:var(--accent-soft);margin-left:3px;}
.stat-label{display:block;margin-top:10px;font-size:12px;color:rgba(255,255,255,.48);letter-spacing:.02em;}
.hero-scroll{
  position:absolute;left:50%;bottom:26px;z-index:2;
  transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:10px;
  font-size:8.5px;letter-spacing:.32em;color:rgba(255,255,255,.4);
}
.hero-scroll i{display:block;width:1px;height:46px;background:linear-gradient(180deg,rgba(255,255,255,.55),rgba(255,255,255,0));animation:scrollLine 2.4s var(--ease) infinite;}
@keyframes scrollLine{0%{transform:scaleY(.25);transform-origin:top;opacity:0;}35%{opacity:1;}100%{transform:scaleY(1);transform-origin:top;opacity:0;}}

/* ==========================================================================
   TRUST STRIP
   ========================================================================== */
.trust-strip{background:var(--surface);border-bottom:1px solid var(--line);padding:30px 0;}
.trust-inner{display:flex;align-items:center;gap:44px;}
.trust-label{flex:none;font-size:11px;letter-spacing:.16em;color:var(--muted-2);white-space:nowrap;}
.trust-marquee{
  flex:1;overflow:hidden;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);
}
.trust-track{display:flex;align-items:center;gap:60px;width:max-content;animation:marquee 46s linear infinite;}
.trust-track:hover{animation-play-state:paused;}
.trust-track span{
  font-size:15px;font-weight:600;letter-spacing:.08em;color:#b7c9e0;
  opacity:.55;white-space:nowrap;transition:opacity .3s;
}
.trust-track span:hover{opacity:.9;}
@keyframes marquee{from{transform:translateX(0);}to{transform:translateX(-50%);}}

/* ==========================================================================
   SECTION HEADINGS
   ========================================================================== */
.sec-head{margin-bottom:clamp(38px,4.6vw,58px);max-width:800px;}
.sec-label{
  display:flex;align-items:center;gap:12px;
  font-size:10.5px;font-weight:600;letter-spacing:.26em;
  color:var(--accent);text-transform:uppercase;
}
.sec-label::before{content:"";width:26px;height:1px;background:currentColor;flex:none;}
.sec-label.light{color:var(--accent-soft);}
.sec-title{
  margin-top:20px;
  font-size:clamp(26px,3.25vw,42px);
  font-weight:600;line-height:1.3;letter-spacing:-.012em;color:var(--strong);
  text-wrap:balance;
}
.sec-desc{margin-top:18px;font-size:15px;line-height:1.9;color:var(--muted);max-width:660px;}
.sec-head.split{display:flex;align-items:flex-end;justify-content:space-between;gap:48px;max-width:none;}
.sec-head.split > div{max-width:720px;}
.text-link{
  display:inline-flex;align-items:center;gap:8px;flex:none;
  font-size:13px;color:var(--strong);letter-spacing:.02em;
  padding-bottom:4px;border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease),color .3s var(--ease);
  margin-bottom:6px;
}
.text-link .ic{width:15px;height:15px;transition:transform .3s var(--ease);}
.text-link:hover{border-bottom-color:var(--strong);}
.text-link:hover .ic{transform:translateX(4px);}

.sub-head{max-width:660px;margin-bottom:40px;}
.sub-title{margin-top:16px;font-size:clamp(20px,2.1vw,27px);font-weight:600;line-height:1.4;color:var(--strong);}
.sub-desc{margin-top:12px;font-size:14px;line-height:1.85;color:var(--muted);}

/* ==========================================================================
   ABOUT
   ========================================================================== */
.about-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:clamp(40px,6vw,84px);align-items:center;}
.about-media{position:relative;}
.media-frame{
  overflow:hidden;background:linear-gradient(145deg,#123763,#071a33);
  aspect-ratio:4/4.5;
}
.media-frame img{width:100%;height:100%;object-fit:cover;transform:scale(1.02);transition:transform .9s var(--ease);}
.about-media:hover .media-frame img{transform:scale(1.06);}
.about-badge{
  position:absolute;right:-26px;bottom:-28px;
  background:var(--ink);color:#fff;
  padding:22px 26px;display:flex;align-items:center;gap:16px;
  min-width:290px;
  box-shadow:0 22px 50px -24px rgba(0,0,0,.5);
}
.about-badge strong{font-size:34px;color:var(--accent-soft);letter-spacing:.01em;line-height:1;}
.about-badge span{font-size:11.5px;line-height:1.75;color:rgba(255,255,255,.6);}
.about-copy .lead{font-size:16.5px;line-height:1.95;color:var(--strong);font-weight:500;}
.about-copy .body-text{margin-top:20px;font-size:14px;line-height:2;color:var(--muted);}
.advantages{
  margin-top:38px;padding-top:34px;border-top:1px solid var(--line);
  display:grid;grid-template-columns:1fr 1fr;gap:30px 32px;
}
.adv-num{display:block;font-size:13px;letter-spacing:.1em;color:var(--accent);}
.adv h3{margin-top:8px;font-size:15.5px;font-weight:600;color:var(--strong);}
.adv p{margin-top:8px;font-size:13px;line-height:1.8;color:var(--muted);}

/* team */
.team-block{margin-top:clamp(64px,7.5vw,108px);}
.team-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;}
.member{border-top:1px solid var(--line);padding-top:26px;transition:border-color .3s;}
.member:hover{border-top-color:var(--accent);}
.member-avatar{
  width:62px;height:62px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--paper-2);border:1px solid var(--line);
  font-size:19px;color:var(--muted);letter-spacing:.04em;margin-bottom:20px;
}
.member h4{font-size:16px;font-weight:600;color:var(--strong);}
.member-role{margin-top:6px;font-size:11.5px;letter-spacing:.05em;color:var(--accent);}
.member-bio{margin-top:12px;font-size:12.8px;line-height:1.85;color:var(--muted);}

/* timeline */
.timeline-block{margin-top:clamp(64px,7.5vw,104px);}
.timeline{position:relative;display:grid;grid-template-columns:repeat(6,1fr);gap:26px;}
.tl-line{position:absolute;left:0;right:0;top:5px;height:1px;background:var(--line-2);}
.tl-item{position:relative;padding-top:30px;}
.tl-dot{
  position:absolute;left:0;top:0;width:11px;height:11px;border-radius:50%;
  background:var(--page);border:2px solid var(--accent);
}
.tl-item:hover .tl-dot{background:var(--accent);border-color:var(--accent);}
.tl-year{display:block;font-size:21px;color:var(--strong);letter-spacing:.01em;}
.tl-item h4{margin-top:10px;font-size:13.5px;font-weight:600;color:var(--strong);}
.tl-item p{margin-top:8px;font-size:12.5px;line-height:1.8;color:var(--muted);}

/* ==========================================================================
   SERVICES
   ========================================================================== */
.services{background:var(--surface-3);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.services-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.svc-card{
  position:relative;
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);
  padding:34px 28px 26px;min-height:306px;
  cursor:pointer;overflow:hidden;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s var(--ease);
}
html.js .svc-card{opacity:0;}
html.js .svc-card.in{opacity:1;animation:cardIn .6s var(--ease) backwards;animation-delay:var(--d,0s);}
.svc-card::before{
  content:"";position:absolute;left:0;top:0;height:2px;width:100%;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .45s var(--ease);
}
.svc-card:hover{transform:translateY(-5px);border-color:rgba(120,170,235,.45);box-shadow:var(--shadow);}
.svc-card:hover::before{transform:scaleX(1);}
.svc-icon{
  width:50px;height:50px;flex:none;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--paper-2);
  transition:background .35s var(--ease),border-color .35s var(--ease),color .35s var(--ease);
}
.svc-icon .ic{width:24px;height:24px;stroke-width:1.5;color:var(--strong);transition:color .35s;}
.svc-card:hover .svc-icon{background:var(--accent);border-color:var(--accent);}
.svc-card:hover .svc-icon .ic{color:#fff;}
.svc-card h3{margin-top:24px;font-size:17px;font-weight:600;letter-spacing:.01em;color:var(--strong);line-height:1.45;}
.svc-card p{margin-top:12px;font-size:13px;line-height:1.85;color:var(--muted);flex:1;}
.svc-more{
  margin-top:22px;padding-top:15px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:12px;letter-spacing:.04em;color:var(--strong);
}
.svc-more .ic{width:15px;height:15px;transition:transform .3s var(--ease),color .3s;}
.svc-card:hover .svc-more .ic{transform:translateX(4px);color:var(--accent);}

/* ==========================================================================
   FILTER TABS
   ========================================================================== */
.filter-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:38px;}
.tab{
  padding:9px 17px;
  font-size:12.5px;letter-spacing:.02em;
  color:var(--muted);background:rgba(255,255,255,.04);border:1px solid var(--line);
  cursor:pointer;border-radius:2px;
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.tab:hover{border-color:rgba(255,255,255,.32);color:var(--strong);}
.tab.is-active{background:var(--accent);border-color:var(--accent);color:#fff;}

/* ==========================================================================
   CASES
   ========================================================================== */
.cases-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.case-card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);
  cursor:pointer;text-align:left;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s var(--ease);
  animation:cardIn .45s var(--ease) backwards;
}
@keyframes cardIn{from{opacity:0;transform:translateY(14px);}to{opacity:1;transform:none;}}
.case-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:rgba(120,170,235,.45);}
.case-top{
  position:relative;overflow:hidden;
  min-height:138px;
  padding:30px 24px 22px;
  display:flex;flex-direction:column;justify-content:space-between;
  background:
    radial-gradient(circle at 84% 12%,rgba(120,170,235,.24),rgba(120,170,235,0) 58%),
    linear-gradient(135deg,#0b2447 0%,#16406f 100%);
  color:#fff;
}
.case-top::after{
  content:"";position:absolute;right:-38px;bottom:-52px;width:150px;height:150px;
  border:1px solid rgba(255,255,255,.09);transform:rotate(28deg);
  transition:transform .6s var(--ease),border-color .6s;
}
.case-card:hover .case-top::after{transform:rotate(48deg) scale(1.06);border-color:rgba(120,170,235,.45);}
.case-industry{
  position:absolute;top:18px;right:18px;
  font-size:9.5px;letter-spacing:.12em;
  color:rgba(255,255,255,.55);
  border:1px solid rgba(255,255,255,.18);
  padding:3px 7px;z-index:2;
}
.case-logo{position:relative;z-index:2;font-size:17px;font-weight:600;letter-spacing:.07em;line-height:1.3;margin-top:auto;}
.case-logo em{display:block;margin-top:6px;font-style:normal;font-size:8px;font-weight:400;letter-spacing:.18em;color:rgba(255,255,255,.4);}
.case-body{display:flex;flex-direction:column;flex:1;gap:15px;padding:22px 24px 24px;}
.case-body h3{font-size:15px;font-weight:600;line-height:1.65;color:var(--strong);min-height:50px;}
.case-results{display:flex;flex-wrap:wrap;gap:6px;}
.result-chip{
  font-size:11px;letter-spacing:.01em;color:var(--text);
  background:var(--paper-2);border:1px solid var(--line);
  padding:4px 8px;border-radius:1px;
}
.case-link{
  margin-top:auto;padding-top:15px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:12px;color:var(--strong);letter-spacing:.03em;
}
.case-link .ic{width:14px;height:14px;transition:transform .3s var(--ease),color .3s;}
.case-card:hover .case-link .ic{transform:translateX(4px);color:var(--accent);}

/* ==========================================================================
   QUOTE BAND
   ========================================================================== */
.quote-band{position:relative;padding:clamp(80px,9vw,120px) 0;background:#0a2a52;color:#fff;overflow:hidden;}
.quote-media{position:absolute;inset:0;}
.quote-media img{width:100%;height:100%;object-fit:cover;opacity:.36;filter:grayscale(.5) brightness(.95);}
.quote-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(6,27,56,.88),rgba(6,27,56,.55));}
.quote-inner{position:relative;z-index:2;}
.quote-band blockquote{
  margin-top:26px;max-width:940px;
  font-size:clamp(23px,3.1vw,39px);
  font-weight:500;line-height:1.55;letter-spacing:.005em;
  color:rgba(255,255,255,.94);
}
.quote-foot{
  margin-top:46px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding-top:28px;border-top:1px solid rgba(255,255,255,.14);
}
.quote-foot span{font-size:11.5px;letter-spacing:.14em;color:rgba(255,255,255,.42);}
.quote-foot .btn-primary{background:#fff;color:#0b2545;}
.quote-foot .btn-primary:hover{background:var(--accent);color:#fff;}

/* ==========================================================================
   NEWS
   ========================================================================== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  cursor:pointer;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s var(--ease);
  animation:cardIn .45s var(--ease) backwards;
}
.news-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:rgba(120,170,235,.45);}
.news-cover{
  position:relative;overflow:hidden;
  height:148px;padding:20px 24px;
  display:flex;flex-direction:column;justify-content:space-between;
  color:#fff;
  background:linear-gradient(135deg,#0a2344 0%,#17416f 100%);
}
.news-cover::before{
  content:"";position:absolute;right:-30px;top:-46px;width:170px;height:170px;
  border:1px solid rgba(255,255,255,.08);transform:rotate(20deg);
  transition:transform .7s var(--ease);
}
.news-card:hover .news-cover::before{transform:rotate(42deg) scale(1.08);}
.news-cover::after{
  content:"";position:absolute;left:-40px;bottom:-70px;width:190px;height:120px;
  background:radial-gradient(ellipse at center,rgba(120,170,235,.26),rgba(120,170,235,0) 70%);
}
.news-card:nth-child(2n) .news-cover{background:linear-gradient(135deg,#0d2b52 0%,#1c4a7c 100%);}
.news-card:nth-child(3n) .news-cover{background:linear-gradient(135deg,#081d39 0%,#123663 100%);}
.news-cat{position:relative;z-index:2;font-size:9.5px;letter-spacing:.16em;color:rgba(255,255,255,.5);}
.news-date-big{position:relative;z-index:2;font-size:29px;letter-spacing:.02em;color:#fff;line-height:1;}
.news-date-big em{font-style:normal;font-size:10px;letter-spacing:.14em;color:rgba(255,255,255,.45);margin-left:8px;}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;gap:11px;}
.news-meta{display:flex;align-items:center;gap:10px;font-size:10.5px;letter-spacing:.06em;color:var(--muted-2);}
.news-meta i{font-style:normal;width:1px;height:9px;background:var(--line-2);}
.news-body h3{font-size:15px;font-weight:600;line-height:1.7;color:var(--strong);}
.news-excerpt{
  font-size:12.5px;line-height:1.85;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-more{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:11.5px;color:var(--muted-2);
}
.news-more .ic{width:13px;height:13px;transition:transform .3s,color .3s;}
.news-card:hover .news-more .ic{transform:translateX(4px);color:var(--accent);}

/* ==========================================================================
   CONTACT
   ========================================================================== */
.contact{background:var(--page);}
.contact-grid{display:grid;grid-template-columns:1fr 1.06fr;gap:clamp(40px,6vw,80px);align-items:start;}
.info-list{margin-top:42px;display:flex;flex-direction:column;gap:26px;}
.info-list li{display:flex;gap:16px;}
.info-icon{
  width:40px;height:40px;flex:none;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--paper-2);color:var(--strong);
}
.info-icon .ic{width:18px;height:18px;}
.info-label{font-size:10.5px;letter-spacing:.16em;color:var(--muted-2);margin-bottom:4px;}
.info-value{font-size:14.5px;line-height:1.7;color:var(--strong);}
.info-value a:hover{color:var(--accent);}
.info-sub{display:block;margin-top:4px;font-size:11.5px;color:var(--muted-2);}

.contact-form-wrap{
  background:var(--paper-2);border:1px solid var(--line);
  padding:clamp(24px,3.4vw,42px);
}
.form-head{padding-bottom:22px;border-bottom:1px solid var(--line);margin-bottom:24px;}
.form-head h3{font-size:20px;font-weight:600;color:var(--strong);letter-spacing:.01em;}
.form-head p{margin-top:8px;font-size:11.5px;color:var(--muted);line-height:1.7;}
.req{color:var(--danger);}
.field{margin-bottom:18px;}
.field label{display:block;font-size:12.5px;font-weight:500;color:var(--muted);margin-bottom:8px;letter-spacing:.02em;}
.field input,.field textarea{
  width:100%;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);border-radius:1px;
  padding:13px 14px;font-size:14px;line-height:1.6;color:var(--strong);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease),background .25s;
}
.field input::placeholder,.field textarea::placeholder{color:var(--muted-2);}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(74,143,220,.18);}
.field textarea{resize:vertical;min-height:132px;line-height:1.75;}
.field-error{display:none;margin-top:6px;font-size:11.5px;color:var(--danger);line-height:1.6;}
.field.invalid input,.field.invalid textarea{border-color:#c97067;background:rgba(201,112,103,.12);}
.field.invalid .field-error{display:block;}

.btn-submit{
  width:100%;margin-top:6px;padding:15px 20px;
  background:var(--accent);color:#fff;border:none;border-radius:1px;
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-size:14px;letter-spacing:.04em;cursor:pointer;
  transition:background .3s var(--ease),transform .3s var(--ease);
}
.btn-submit:hover{background:#5da2ec;}
.btn-submit:disabled{cursor:not-allowed;opacity:.75;}
.btn-loading{display:none;width:14px;height:14px;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;}
.btn-submit.is-loading .btn-loading{display:inline-block;}
.btn-submit.is-loading .btn-text{opacity:.7;}
.btn-submit.is-loading .ic{display:none;}
@keyframes spin{to{transform:rotate(360deg);}}
.form-note{margin-top:13px;font-size:11px;line-height:1.7;color:var(--muted-2);}

.form-success{text-align:center;padding:44px 6px 32px;animation:cardIn .45s var(--ease) both;}
.success-icon{
  width:58px;height:58px;border-radius:50%;background:var(--accent);color:#fff;
  display:flex;align-items:center;justify-content:center;margin:0 auto 22px;
}
.success-icon .ic{width:26px;height:26px;stroke-width:1.8;}
.form-success h3{font-size:20px;font-weight:600;color:var(--strong);}
.form-success p{margin-top:12px;font-size:13.5px;line-height:1.95;color:var(--muted);}
.form-success p a{color:var(--strong);border-bottom:1px solid var(--line-2);}
.text-btn{margin-top:24px;background:none;border:none;cursor:pointer;font-size:12.5px;color:var(--strong);border-bottom:1px solid currentColor;padding:0 0 2px;}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer{background:#061528;color:rgba(255,255,255,.55);padding:70px 0 0;border-top:1px solid var(--line);}
.footer-top{
  display:grid;
  grid-template-columns:1.7fr .7fr .9fr 1.1fr .62fr;
  gap:40px;
  padding-bottom:52px;
  border-bottom:1px solid rgba(255,255,255,.09);
}
.brand-light{color:#fff;}
.footer-brand p{margin-top:22px;font-size:12.5px;line-height:1.95;color:rgba(255,255,255,.45);}
.footer-slogan{margin-top:18px;font-size:11px;letter-spacing:.14em;color:var(--accent-soft);opacity:.85;}
.footer-col h4{font-size:12px;font-weight:600;letter-spacing:.12em;color:#fff;margin-bottom:18px;}
.footer-col a,.footer-col p{display:block;font-size:12.5px;line-height:1.75;color:rgba(255,255,255,.45);margin-bottom:9px;transition:color .25s;}
.footer-col a:hover{color:#fff;}
.footer-qr{display:flex;flex-direction:column;align-items:center;gap:10px;}
.footer-qr img{width:96px;height:96px;background:#fff;padding:5px;}
.footer-qr span{font-size:10.5px;letter-spacing:.08em;color:rgba(255,255,255,.4);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding:24px 0 30px;font-size:11.5px;color:rgba(255,255,255,.32);
}
.footer-legal{display:flex;flex-wrap:wrap;gap:18px;}
.footer-legal a:hover{color:rgba(255,255,255,.75);}

/* ==========================================================================
   BACK TO TOP
   ========================================================================== */
.back-top{
  position:fixed;right:24px;bottom:24px;z-index:90;
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  background:var(--accent);color:#fff;border:none;cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .3s var(--ease),visibility .3s,transform .3s var(--ease),background .3s;
}
.back-top.show{opacity:1;visibility:visible;transform:none;}
.back-top:hover{background:#5da2ec;color:#fff;}
.back-top .ic{width:18px;height:18px;}

/* ==========================================================================
   MODAL
   ========================================================================== */
.modal{
  position:fixed;inset:0;z-index:300;
  display:flex;align-items:center;justify-content:center;
  padding:28px;
  opacity:0;visibility:hidden;
  transition:opacity .28s var(--ease),visibility .28s;
}
.modal.open{opacity:1;visibility:visible;}
.modal-backdrop{position:absolute;inset:0;background:rgba(4,16,34,.66);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);}
.modal-panel{
  position:relative;
  width:min(860px,100%);max-height:88vh;overflow-y:auto;
  background:var(--surface);box-shadow:0 50px 120px rgba(0,0,0,.55);
  transform:translateY(18px) scale(.995);
  transition:transform .34s var(--ease);
}
.modal.open .modal-panel{transform:none;}
.modal-close{
  position:absolute;top:18px;right:18px;z-index:5;
  width:38px;height:38px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.06);border:1px solid var(--line);cursor:pointer;
  transition:background .25s,color .25s,border-color .25s;
}
.modal-close:hover{background:var(--accent);color:#fff;border-color:var(--accent);}
.modal-close .ic{width:17px;height:17px;}
.modal-head{padding:42px 48px 26px;border-bottom:1px solid var(--line);}
.modal-tag{font-size:10.5px;letter-spacing:.18em;color:var(--accent);text-transform:uppercase;}
.modal-title{margin-top:12px;font-size:clamp(21px,2.3vw,28px);font-weight:600;line-height:1.4;color:var(--strong);letter-spacing:-.005em;padding-right:30px;}
.modal-sub{margin-top:10px;font-size:13px;line-height:1.75;color:var(--muted);}
.modal-body{padding:30px 48px 44px;}
.m-block{margin-bottom:28px;}
.m-block:last-child{margin-bottom:0;}
.m-block h4{
  display:flex;align-items:center;gap:10px;
  font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--strong);margin-bottom:12px;
}
.m-block h4::before{content:"";width:3px;height:12px;background:var(--accent);flex:none;}
.m-block p{font-size:13.5px;line-height:1.95;color:var(--text);}
.m-block ul{display:flex;flex-direction:column;gap:8px;}
.m-block li{position:relative;padding-left:17px;font-size:13.5px;line-height:1.85;color:var(--text);}
.m-block li::before{content:"";position:absolute;left:0;top:11px;width:5px;height:1px;background:var(--accent);}
.m-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
.m-metric{background:var(--paper-2);border:1px solid var(--line);padding:17px 16px;}
.m-metric b{display:block;font-size:22px;font-weight:600;letter-spacing:-.01em;color:var(--strong);line-height:1.2;}
.m-metric span{display:block;margin-top:6px;font-size:11.5px;line-height:1.6;color:var(--muted);}
.m-quote{
  border-left:2px solid var(--accent);background:var(--paper-2);
  padding:18px 20px;font-size:13px;line-height:1.9;color:var(--text);
}
.m-cta{margin-top:34px;padding-top:26px;border-top:1px solid var(--line);}
body.modal-open{overflow:hidden;}

/* ==========================================================================
   TOAST
   ========================================================================== */
.toast{
  position:fixed;top:96px;right:24px;z-index:400;
  max-width:330px;
  display:flex;align-items:center;gap:10px;
  padding:14px 20px;
  background:#0e2f59;color:#fff;
  border-left:3px solid var(--accent);
  font-size:13px;line-height:1.6;
  box-shadow:0 22px 50px -18px rgba(0,0,0,.5);
  opacity:0;transform:translateY(-16px);pointer-events:none;
  transition:opacity .35s var(--ease),transform .35s var(--ease);
}
.toast.show{opacity:1;transform:none;}
.toast .ic{width:16px;height:16px;color:var(--accent-soft);}

/* ==========================================================================
   REVEAL ANIMATION
   ========================================================================== */
html.js .reveal{opacity:0;transform:translateY(26px);transition:opacity .75s var(--ease),transform .75s var(--ease);}
html.js .reveal.in{opacity:1;transform:none;}
html.js .reveal[data-delay="1"]{transition-delay:.08s;}
html.js .reveal[data-delay="2"]{transition-delay:.16s;}
html.js .reveal[data-delay="3"]{transition-delay:.24s;}
html.js .reveal[data-delay="4"]{transition-delay:.32s;}
html.js .reveal[data-delay="5"]{transition-delay:.4s;}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width:1180px){
  .header-inner{gap:20px;}
  .main-nav ul{gap:24px;}
  .header-actions{gap:16px;}
  .services-grid{grid-template-columns:repeat(3,1fr);}
  .cases-grid{grid-template-columns:repeat(2,1fr);}
  .team-grid{grid-template-columns:repeat(2,1fr);}
  .timeline{grid-template-columns:repeat(3,1fr);row-gap:38px;}
  .tl-line{display:none;}
  .footer-top{grid-template-columns:1.6fr 1fr 1fr;row-gap:44px;}
  .footer-qr{grid-column:span 3;flex-direction:row;justify-content:flex-start;gap:16px;}
}

@media (max-width:1024px){
  .main-nav{display:none;}
  .menu-toggle{display:flex;}
  .header-tel{display:none;}
  .about-grid{grid-template-columns:1fr;gap:46px;}
  .about-media{max-width:560px;}
  .about-badge{right:-8px;}
  .contact-grid{grid-template-columns:1fr;gap:46px;}
  .sec-head.split{flex-direction:column;align-items:flex-start;gap:24px;}
  .text-link{margin-bottom:0;}
  .quote-foot{flex-direction:column;align-items:flex-start;}
  .hero{padding:136px 0 84px;}
  .hero-stats{margin-top:52px;}
  .services-grid{grid-template-columns:repeat(2,1fr);}
}

@media (max-width:820px){
  .container{padding:0 24px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .footer-top{grid-template-columns:1fr 1fr;}
  .footer-brand{grid-column:span 2;}
  .footer-qr{grid-column:span 2;}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:26px 20px;}
  .hero-scroll{display:none;}
  .quote-band blockquote br{display:none;}
  .modal{padding:20px;}
  .modal-head{padding:38px 32px 24px;}
  .modal-body{padding:26px 32px 36px;}
}

@media (max-width:640px){
  .container{padding:0 20px;}
  html{scroll-padding-top:76px;}
  .section{padding:64px 0;}
  .header-inner{height:70px;gap:12px;}
  .site-header.is-scrolled .header-inner{height:62px;}
  .brand-text strong{font-size:15.5px;}
  .brand-text em{display:none;}
  .brand-mark{width:30px;height:30px;}
  .header-actions{gap:8px;}
  .btn-header{padding:9px 12px;font-size:12px;flex:none;}
  html[lang="en"] .btn-header{display:none;}
  .lang-switch{gap:4px;font-size:12px;}
  .hero{padding:118px 0 64px;min-height:auto;}
  .hero h1{font-size:clamp(31px,8.6vw,42px);}
  .hero-h1-sub{font-size:17px;margin-top:16px;}
  .hero-desc{font-size:14px;line-height:1.9;}
  .hero-desc br{display:none;}
  .hero-actions{flex-direction:column;align-items:stretch;gap:10px;margin-top:32px;}
  .hero-actions .btn{width:100%;}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:22px 14px;padding-top:26px;margin-top:42px;}
  .stat-num b{font-size:28px;}
  .stat-label{font-size:11px;line-height:1.5;}
  .trust-strip{padding:24px 0;}
  .trust-inner{flex-direction:column;align-items:flex-start;gap:16px;}
  .trust-marquee{width:100%;}
  .trust-track{gap:40px;}
  .trust-track span{font-size:13.5px;}
  .sec-title{font-size:25px;}
  .sec-desc{font-size:14px;}
  .about-copy .lead{font-size:15.5px;}
  .advantages{grid-template-columns:1fr;gap:24px;}
  .about-badge{position:relative;right:auto;bottom:auto;margin:-32px 0 0 auto;min-width:0;width:min(280px,92%);padding:18px 22px;}
  .about-badge strong{font-size:29px;}
  .team-grid{grid-template-columns:1fr;}
  .timeline{grid-template-columns:1fr;gap:0;}
  .tl-line{display:block;left:5px;right:auto;top:6px;bottom:0;width:1px;height:auto;}
  .tl-item{padding:0 0 30px 28px;}
  .tl-dot{top:6px;}
  .services-grid{grid-template-columns:1fr;}
  .svc-card{min-height:0;padding:28px 24px 22px;}
  .cases-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .case-body h3{min-height:0;}
  .news-cover{height:132px;}
  .filter-tabs{gap:6px;margin-bottom:28px;}
  .tab{padding:8px 13px;font-size:11.5px;}
  .quote-band blockquote{font-size:21px;line-height:1.65;}
  .quote-foot .btn{width:100%;}
  .footer-top{grid-template-columns:1fr;gap:34px;padding-bottom:38px;}
  .footer-brand,.footer-qr{grid-column:span 1;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .modal{padding:0;}
  .modal-panel{width:100%;height:100%;max-height:100%;}
  .modal-close{top:14px;right:14px;}
  .modal-head{padding:56px 22px 20px;}
  .modal-body{padding:24px 22px 40px;}
  .m-metrics{grid-template-columns:1fr;gap:10px;}
  .toast{left:16px;right:16px;top:80px;max-width:none;}
  .back-top{right:16px;bottom:16px;width:40px;height:40px;}
}

@media (max-width:380px){
  .btn-header{display:none;}
  .stat-num b{font-size:24px;}
}

/* ==========================================================================
   REDUCED MOTION
   ========================================================================== */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  html.js .reveal{opacity:1;transform:none;}
  .trust-track{animation:none;flex-wrap:wrap;}
}