/* extracted from public/index.html */

:root{
  --steel:#143C5C; --steel-dk:#0C2438; --steel-md:#1E5080; --steel-bg:#EEF3F8;
  --accent:#E87722; --accent-dk:#C85F10;
  --ink:#1B2A36; --gray:#5B6B78; --line:#E2E8EF;
  --white:#fff; --radius:14px;
  --shadow:0 10px 30px rgba(12,36,56,.10);
  --shadow-lg:0 18px 50px rgba(12,36,56,.16);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Segoe UI","Helvetica Neue",Arial,"Microsoft YaHei","PingFang SC",sans-serif;color:var(--ink);line-height:1.6;background:#fff;overflow-x:hidden}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.container{max-width:1180px;margin:0 auto;padding:0 24px}
section{padding:88px 0}
.kicker{font-size:13px;font-weight:700;letter-spacing:3px;color:var(--accent);text-transform:uppercase;margin-bottom:12px}
h2.stitle{font-size:clamp(26px,3.4vw,40px);line-height:1.25;color:var(--steel-dk);margin-bottom:14px;font-weight:800}
.ssub{color:var(--gray);max-width:720px;font-size:16px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 28px;border-radius:8px;font-weight:700;font-size:15px;border:2px solid transparent;cursor:pointer;transition:.2s}
.btn-p{background:var(--accent);color:#fff}
.btn-p:hover{background:var(--accent-dk);transform:translateY(-2px)}
.btn-o{border-color:rgba(255,255,255,.7);color:#fff;background:transparent}
.btn-o:hover{background:rgba(255,255,255,.12)}
.btn-s{background:var(--steel);color:#fff}
.btn-s:hover{background:var(--steel-md)}

/* ---------- header ---------- */
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.hd{display:flex;align-items:center;gap:22px;height:74px}
header .hd{max-width:1380px;padding:0 28px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand img{height:44px;width:auto}
.brand .bn{display:flex;flex-direction:column;line-height:1.15}
.brand .bn b{font-size:15px;color:var(--steel-dk);letter-spacing:.5px}
.brand .bn span{font-size:11px;color:var(--gray);letter-spacing:2px}
nav.main{display:flex;gap:3px;margin-left:auto;flex-shrink:0}
nav.main a{padding:9px 12px;font-size:14.5px;font-weight:600;color:var(--ink);border-radius:8px;white-space:nowrap}
nav.main a:hover{color:var(--steel);background:var(--steel-bg)}
.hd-right{display:flex;align-items:center;gap:12px;flex-shrink:0;margin-left:8px}
/* language toggle — never shrink, never clip */
.lang-t{display:inline-flex;flex:0 0 auto;border:1.5px solid var(--line);border-radius:8px;overflow:hidden;background:#fff}
.lang-t button{border:0;background:transparent;padding:7px 13px;font-size:13px;font-weight:700;cursor:pointer;color:var(--gray);white-space:nowrap;line-height:1.2;min-width:46px;transition:.15s}
.lang-t button:hover{color:var(--steel-dk);background:var(--steel-bg)}
.lang-t button.on{background:var(--steel);color:#fff}
.hd-cta{padding:10px 20px;font-size:14px}
.burger{display:none;background:none;border:0;cursor:pointer;padding:8px}
.burger svg{width:26px;height:26px;stroke:var(--steel-dk)}

/* ---------- hero ---------- */
.hero{position:relative;min-height:86vh;display:flex;align-items:center;color:#fff;padding:120px 0 0}
.hero-bg{position:absolute;inset:0;background:url('hero.jpg') center/cover no-repeat;background-color:#0C2438}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(9,26,40,.88) 0%,rgba(12,36,56,.72) 42%,rgba(12,36,56,.30) 75%,rgba(12,36,56,.18) 100%)}
.hero-in{position:relative;z-index:2;padding-bottom:110px}
.hero .kicker{color:#F0A05A}
.hero h1{font-size:clamp(34px,5.2vw,62px);line-height:1.12;font-weight:800;letter-spacing:.5px;max-width:760px;white-space:pre-line;text-shadow:0 2px 18px rgba(0,0,0,.35)}
.hero p{margin:22px 0 34px;max-width:620px;font-size:clamp(15px,1.4vw,18px);color:rgba(255,255,255,.92)}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.stats{position:absolute;left:0;right:0;bottom:0;z-index:3;background:rgba(9,26,40,.55);backdrop-filter:blur(10px);border-top:1px solid rgba(255,255,255,.14)}
.stats .container{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:22px 10px;text-align:center;border-left:1px solid rgba(255,255,255,.12)}
.stat:first-child{border-left:0}
.stat b{display:block;font-size:clamp(22px,2.6vw,32px);font-weight:800;color:#fff}
.stat span{font-size:12.5px;color:rgba(255,255,255,.75);letter-spacing:.5px}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.about-media{position:relative}
.about-media img{border-radius:var(--radius);box-shadow:var(--shadow-lg)}
.about-media .cap{position:absolute;left:16px;bottom:16px;background:rgba(12,36,56,.82);color:#fff;font-size:13px;padding:8px 16px;border-radius:8px;backdrop-filter:blur(4px)}
.about-txt p{color:var(--gray);margin-bottom:16px;font-size:15.5px}
.facts{margin-top:26px;border-top:1px solid var(--line)}
.facts .fr{display:grid;grid-template-columns:210px 1fr;gap:12px;padding:12px 4px;border-bottom:1px solid var(--line);font-size:14.5px}
.facts .fr b{color:var(--steel-dk);font-weight:700}
.facts .fr span{color:var(--ink);overflow-wrap:anywhere}

/* ---------- products ---------- */
.sec-gray{background:var(--steel-bg)}
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:44px}
.pcard{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.25s;display:flex;flex-direction:column}
.pcard:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.pcard .pimg{height:220px;background:#fff center/contain no-repeat;border-bottom:1px solid var(--line);position:relative}
.pcard .pbody{padding:22px 22px 24px;display:flex;flex-direction:column;gap:9px;flex:1}
.pcard h3{font-size:18.5px;color:var(--steel-dk);line-height:1.35}
.pcard .pd{color:var(--gray);font-size:14px;flex:1}
.pcard .ps{font-size:12.5px;color:var(--steel);background:var(--steel-bg);border-radius:7px;padding:7px 11px;font-weight:600}
.pfoot{margin-top:14px;padding-top:13px;border-top:1px solid var(--line);display:flex;align-items:center;gap:10px}
.pfoot .pr{font-size:12.5px;color:var(--gray)}
.pfoot .pr b{color:var(--accent);font-size:15px}
.pmore{margin-left:auto;font-size:13.5px;font-weight:700;color:var(--steel);display:inline-flex;align-items:center;gap:6px}
.pcard:hover .pmore{color:var(--accent)}
.pmore svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:2.2}
.tags{display:flex;flex-wrap:wrap;gap:6px}
.tag{font-size:11.5px;background:var(--steel-bg);color:var(--steel-md);border-radius:5px;padding:4px 9px;font-weight:600}
.viewall{text-align:center;margin-top:38px}

/* ---------- quality ---------- */
.q-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:56px;align-items:center}
.q-list{list-style:none;margin-top:26px;display:flex;flex-direction:column;gap:14px}
.q-list li{display:flex;gap:13px;align-items:flex-start;font-size:15.5px;color:var(--ink)}
.q-list .tick{flex-shrink:0;width:26px;height:26px;border-radius:50%;background:var(--steel);display:flex;align-items:center;justify-content:center;margin-top:2px}
.q-list .tick svg{width:14px;height:14px;stroke:#fff;stroke-width:3;fill:none}
.q-media{position:relative}
.q-media img{border-radius:var(--radius);box-shadow:var(--shadow-lg)}
.q-badge{position:absolute;right:-14px;top:-20px;background:var(--accent);color:#fff;border-radius:12px;padding:14px 20px;box-shadow:var(--shadow-lg);text-align:center}
.q-badge b{display:block;font-size:24px}
.q-badge span{font-size:12px}

/* ---------- applications ---------- */
.app-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;margin-top:44px}
.acard{position:relative;border-radius:12px;overflow:hidden;height:300px;color:#fff;display:flex;align-items:flex-end;box-shadow:var(--shadow);transition:.25s}
.acard:hover{transform:translateY(-5px)}
.acard .abg{position:absolute;inset:0;background-size:cover;background-position:center;transition:.4s}
.acard:hover .abg{transform:scale(1.06)}
.acard .ash{position:absolute;inset:0;background:linear-gradient(180deg,rgba(12,36,56,.05) 30%,rgba(12,36,56,.92) 100%)}
.acard .abody{position:relative;padding:18px}
.acard h3{font-size:16.5px;margin-bottom:6px}
.acard p{font-size:12.5px;color:rgba(255,255,255,.85);line-height:1.5}

/* ---------- projects ---------- */
.proj-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;margin-top:44px}
.jcard{display:grid;grid-template-columns:210px 1fr;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.25s}
.jcard:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.jcard .jimg{background-size:cover;background-position:center;min-height:190px;position:relative}
.jcard .jtag{position:absolute;left:12px;top:12px;background:rgba(12,36,56,.85);color:#fff;font-size:11.5px;padding:5px 11px;border-radius:6px;letter-spacing:.5px}
.jcard .jbody{padding:20px 22px}
.jcard h3{font-size:16.5px;color:var(--steel-dk);line-height:1.4;margin-bottom:8px}
.jcard p{font-size:13.5px;color:var(--gray);margin-bottom:10px}
.jcard .js{font-size:12px;font-weight:700;color:var(--accent-dk)}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:44px}
.ncard{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.25s;display:flex;flex-direction:column}
.ncard:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.ncard .nimg{height:220px;background:#fff center/contain no-repeat;border-bottom:1px solid var(--line)}
.ncard .nbody{padding:20px 22px;flex:1;display:flex;flex-direction:column}
.ncard time{font-size:12.5px;color:var(--accent);font-weight:700;letter-spacing:1px}
.ncard h3{font-size:16.5px;color:var(--steel-dk);line-height:1.4;margin:8px 0}
.ncard h3 a{color:inherit;text-decoration:none}
.ncard h3 a:hover{color:var(--accent)}
.ncard p{font-size:13.5px;color:var(--gray);flex:1}
.ncard .nmore{margin-top:12px;font-size:13px;font-weight:700;color:var(--steel)}
.ncard .nmore a{color:var(--accent);text-decoration:none}
.ncard .nmore a:hover{color:var(--steel-dk)}

/* ---------- contact ---------- */
.contact{background:var(--steel-dk);color:#fff;position:relative;padding:0}
.contact-wrap{display:grid;grid-template-columns:1.12fr .88fr;min-height:640px}
.contact-left{padding:84px 8% 84px 0;padding-left:max(24px,calc((100vw - 1180px)/2 + 24px));display:flex;flex-direction:column;justify-content:center}
.contact-left .kicker{color:#F0A05A}
.contact-left h2{font-size:clamp(24px,2.8vw,36px);line-height:1.3;margin-bottom:30px;max-width:560px}
.person{display:flex;align-items:center;gap:16px;margin-bottom:26px}
.person .avatar{width:60px;height:60px;border-radius:50%;background:var(--accent);display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:800}
.person b{font-size:20px;display:block}
.person span{font-size:13.5px;color:rgba(255,255,255,.7)}
.c-rows{display:flex;flex-direction:column;gap:14px;margin-bottom:30px}
.c-row{display:flex;gap:14px;align-items:flex-start}
.c-row .ic{width:38px;height:38px;flex-shrink:0;border-radius:9px;background:rgba(255,255,255,.09);display:flex;align-items:center;justify-content:center}
.c-row .ic svg{width:18px;height:18px;stroke:#F0A05A;fill:none;stroke-width:1.8}
.c-row .ck{font-size:12px;color:rgba(255,255,255,.6);letter-spacing:.5px}
.c-row .cv{font-size:15.5px;font-weight:600;overflow-wrap:anywhere}
.c-row .cv a:hover{color:#F0A05A}
.i-form{display:grid;grid-template-columns:1fr 1fr;gap:12px;max-width:560px}
.i-form input,.i-form textarea{padding:13px 15px;border-radius:9px;border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.07);color:#fff;font-size:14px;font-family:inherit;outline:none}
.i-form input::placeholder,.i-form textarea::placeholder{color:rgba(255,255,255,.45)}
.i-form input:focus,.i-form textarea:focus{border-color:var(--accent)}
.i-form textarea{grid-column:1/-1;min-height:96px;resize:vertical}
.i-form .btn{grid-column:1/-1;justify-content:center}
.form-note{grid-column:1/-1;font-size:13px;min-height:18px}
.contact-right{position:relative;min-height:420px}
.contact-right .pbg{position:absolute;inset:0;background:url('contact-liu.jpg') right center/cover no-repeat}
.contact-right .pbg::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--steel-dk) 0%,rgba(12,36,56,.55) 22%,rgba(12,36,56,0) 55%)}
.contact-right .pname{position:absolute;left:22px;bottom:24px;background:rgba(9,26,40,.78);backdrop-filter:blur(6px);padding:12px 20px;border-radius:11px;border-left:3px solid var(--accent)}
.contact-right .pname b{font-size:18px;display:block}
.contact-right .pname span{font-size:12.5px;color:rgba(255,255,255,.75)}

/* ---------- footer ---------- */
footer{background:#081C2C;color:rgba(255,255,255,.72);padding:64px 0 0;font-size:14px}
.ft-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:44px}
.ft-brand .fcard{display:inline-block;background:#fff;border-radius:10px;padding:10px 16px;margin-bottom:16px}
.ft-brand img{height:44px;width:auto}
footer h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.5px}
footer ul{list-style:none;display:flex;flex-direction:column;gap:10px}
footer ul a:hover{color:#F0A05A}
.ft-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5)}

/* ---------- news modal ---------- */
.modal{position:fixed;inset:0;z-index:90;background:rgba(8,28,44,.72);display:none;align-items:center;justify-content:center;padding:24px}
.modal.open{display:flex}
.modal-box{background:#fff;border-radius:16px;max-width:720px;width:100%;max-height:84vh;overflow:auto;padding:34px 38px;position:relative}
.modal-box h3{font-size:22px;color:var(--steel-dk);margin:6px 0 16px;line-height:1.35}
.modal-box time{font-size:13px;color:var(--accent);font-weight:700}
.modal-box p{color:var(--ink);font-size:15px}
.modal-x{position:absolute;right:16px;top:14px;border:0;background:var(--steel-bg);width:36px;height:36px;border-radius:50%;font-size:17px;cursor:pointer;color:var(--steel-dk)}

/* ---------- WhatsApp float ---------- */
.wa-float{position:fixed;right:22px;bottom:22px;z-index:60;background:#25D366;color:#fff;display:flex;align-items:center;gap:9px;padding:12px 18px;border-radius:50px;font-weight:700;font-size:14px;box-shadow:0 8px 24px rgba(37,211,102,.4);transition:.2s}
.wa-float:hover{transform:translateY(-3px)}
.wa-float svg{width:20px;height:20px;fill:#fff}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}
html.no-js .rv{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media(max-width:1100px){
  nav.main a{padding:9px 10px;font-size:14px}
  .hd{gap:16px}
  .brand .bn b{max-width:170px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
}
@media(max-width:1024px){
  .prod-grid,.news-grid{grid-template-columns:repeat(2,1fr)}
  .app-grid{grid-template-columns:repeat(3,1fr)}
  .about-grid,.q-grid{grid-template-columns:1fr;gap:36px}
  .contact-wrap{grid-template-columns:1fr}
  .contact-left{padding:70px 24px}
  .contact-right{min-height:480px;order:-1}
  .contact-right .pbg{background-position:center top}
  .contact-right .pbg::before{background:linear-gradient(0deg,var(--steel-dk) 0%,rgba(12,36,56,.35) 26%,rgba(12,36,56,0) 55%)}
  .brand{min-width:0}
}
/* below 1120px the nav collapses into the burger — this is what used to
   squeeze the EN/中文 toggle until the 中文 button was cut in half */
@media(max-width:1120px){
  nav.main{position:fixed;inset:74px 0 auto 0;background:#fff;flex-direction:column;padding:14px 20px 22px;border-bottom:1px solid var(--line);display:none;box-shadow:var(--shadow-lg);max-height:calc(100vh - 74px);overflow-y:auto;z-index:60}
  nav.main.open{display:flex}
  nav.main a{padding:12px 6px;font-size:15.5px;border-bottom:1px solid var(--line)}
  .burger{display:block}
  .hd-cta{display:none}
}
@media(max-width:768px){
  section{padding:62px 0}
  .hd{gap:10px}
  .brand{flex:1;min-width:0}
  .brand .bn{display:none}
  .brand img{height:38px}
  .hd-right{gap:8px}
  .lang-t button{padding:6px 10px;min-width:40px;font-size:12.5px}
  .hero{min-height:78vh}
  .stats .container{grid-template-columns:repeat(2,1fr)}
  .stat{padding:14px 8px}
  .prod-grid,.news-grid,.proj-grid,.app-grid{grid-template-columns:1fr}
  .acard{height:220px}
  .jcard{grid-template-columns:1fr}
  .jcard .jimg{min-height:170px}
  .ft-grid{grid-template-columns:1fr 1fr;gap:28px}
  .i-form{grid-template-columns:1fr}
  .facts .fr{grid-template-columns:1fr;gap:2px}
  .brand .bn b{font-size:13px}
}