/* PC Display Mod - style.css  (dark tech theme) */
:root{
  --bg:#07090d; --bg2:#0c1017; --panel:#101623; --line:#1c2636;
  --txt:#e8edf4; --muted:#8a97ab; --accent:#22d3ee; --accent2:#67e8f9;
  --ok:#34d399; --radius:14px; --max:1120px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--txt);font-family:"Segoe UI",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.6}
img,video{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
section{padding:72px 0}
h2{font-size:clamp(24px,3.4vw,36px);line-height:1.25;margin-bottom:8px}
.sub{color:var(--muted);max-width:640px;margin-bottom:40px}

/* ---- nav ---- */
header{position:sticky;top:0;z-index:50;background:rgba(7,9,13,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto}
.brand{font-weight:800;font-size:19px;letter-spacing:.5px}
.brand span{color:var(--accent)}
.nav-links{display:flex;align-items:center;gap:26px;font-size:14.5px}
.nav-links>div{position:relative}
.nav-links a:hover{color:var(--accent2)}
.dropdown{position:absolute;top:100%;left:-14px;background:var(--panel);border:1px solid var(--line);border-radius:10px;min-width:220px;padding:8px;display:none;box-shadow:0 12px 30px rgba(0,0,0,.5)}
.nav-links>div:hover .dropdown{display:block}
.dropdown a{display:block;padding:9px 12px;border-radius:8px;font-size:14px}
.dropdown a:hover{background:#16202f}
.btn{display:inline-block;padding:10px 22px;border-radius:9px;font-size:14.5px;font-weight:600;transition:.2s;cursor:pointer;border:1px solid transparent}
.btn-accent{background:var(--accent);color:#04222a}
.btn-accent:hover{background:var(--accent2)}
.btn-ghost{border-color:var(--line);color:var(--txt)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent2)}
.btn-lg{padding:14px 30px;font-size:16px}
.lang{display:flex;gap:4px;margin-left:8px}
.lang-dd{position:relative;margin-left:8px}
.lang-btn{background:none;border:1px solid var(--line);color:var(--muted);border-radius:8px;padding:5px 10px;font-size:13px;cursor:pointer;display:flex;align-items:center;gap:6px}
.lang-btn svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.7}
.lang-btn:hover{border-color:var(--accent);color:var(--accent2)}
.lang-menu{position:absolute;top:calc(100% + 6px);right:0;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:6px;min-width:130px;display:none;box-shadow:0 12px 30px rgba(0,0,0,.5);z-index:80}
.lang-dd.open .lang-menu{display:block}
.lang-opt{display:flex;width:100%;background:none;border:none;color:var(--txt);border-radius:7px;padding:8px 12px;font-size:13.5px;cursor:pointer;justify-content:space-between;align-items:center}
.lang-opt:hover{background:#16202f}
.lang-opt.active{color:var(--accent)}
.lang-opt.active::after{content:"✓"}
.menu-toggle{display:none;background:none;border:none;color:var(--txt);font-size:22px;cursor:pointer}

/* ---- hero ---- */
.hero{position:relative;min-height:86vh;display:flex;align-items:center;overflow:hidden;padding:0}
.hero video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.55}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,9,13,.75),rgba(7,9,13,.25) 45%,var(--bg))}
.hero .wrap{position:relative;z-index:2;width:100%}
.hero .tag{color:var(--accent);font-size:12.5px;letter-spacing:3px;font-weight:700;margin-bottom:14px}
.hero h1{font-size:clamp(30px,5.4vw,56px);line-height:1.15;max-width:720px;margin-bottom:18px}
.hero p{color:#c3cddb;max-width:560px;margin-bottom:30px}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap}

/* ---- strip ---- */
.strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg2)}
.strip .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;padding:18px 20px;text-align:center;font-size:14px;color:#c3cddb}
.strip b{color:var(--accent2)}

/* ---- products ---- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:.25s}
.card:hover{border-color:#2b3b55;transform:translateY(-3px)}
.card .media{aspect-ratio:16/9;background:#05070a;display:flex;align-items:center;justify-content:center;overflow:hidden}
.card .media img{width:100%;height:100%;object-fit:cover}
.media-fit img{object-fit:contain;padding:8px}
.zoomable{cursor:zoom-in;transition:.2s}
.zoomable:hover{opacity:.85}
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.93);display:none;align-items:center;justify-content:center;z-index:100;cursor:zoom-out}
.lightbox.open{display:flex}
.lightbox img{max-width:92vw;max-height:92vh;border-radius:10px}
.card .body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.badge{display:inline-block;font-size:11px;letter-spacing:1.5px;font-weight:700;color:var(--accent);border:1px solid var(--accent);border-radius:20px;padding:2px 10px;width:max-content}
.badge.gray{color:var(--muted);border-color:var(--line)}
.card h3{font-size:19px}
.card .desc{color:var(--muted);font-size:14px;flex:1}
.spec{list-style:none;font-size:13.5px;display:grid;gap:6px}
.spec li{display:flex;justify-content:space-between;gap:10px;border-bottom:1px dashed var(--line);padding-bottom:5px}
.spec li span{color:var(--muted)}
.spec li b{text-align:right;font-weight:600}
.note{font-size:12.5px;color:var(--muted);border-left:2px solid var(--accent);padding-left:10px}

/* ---- gallery ---- */
.gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.gtile{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:#000;aspect-ratio:16/9}
.gtile video{width:100%;height:100%;object-fit:cover}
.gtile .cap{position:absolute;left:0;right:0;bottom:0;padding:14px 16px;background:linear-gradient(transparent,rgba(0,0,0,.85));font-size:14px;font-weight:600}

/* ---- steps ---- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.step .n{color:var(--accent);font-weight:800;font-size:13px;letter-spacing:2px}
.step h3{font-size:16.5px;margin:8px 0 6px}
.step p{color:var(--muted);font-size:13.5px}
.nonote{display:flex;gap:10px;align-items:center;margin-top:22px;background:rgba(52,211,153,.08);border:1px solid var(--ok);border-radius:12px;padding:14px 18px;color:var(--ok)}
.nonote svg{flex:none}
.nonote p{font-size:14.5px;font-weight:600}

/* ---- software ---- */
.soft{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.soft .item{display:flex;gap:14px;align-items:flex-start;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:18px}
.soft .ico{width:38px;height:38px;flex:none;border-radius:10px;background:rgba(34,211,238,.12);display:flex;align-items:center;justify-content:center}
.soft .ico svg{width:20px;height:20px;stroke:var(--accent);fill:none;stroke-width:1.8}
.soft h4{font-size:15px;font-weight:600}

/* ---- pricing ---- */
.notice{display:flex;gap:12px;align-items:flex-start;background:rgba(251,191,36,.08);border:1px solid #f59e0b;border-radius:12px;padding:16px 18px;margin-bottom:30px;color:#fcd34d}
.notice svg{flex:none;margin-top:2px}
.notice p{font-size:14.5px;line-height:1.65;font-weight:600}
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.pcard{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:28px;text-align:center;display:flex;flex-direction:column;gap:8px}
.pcard.hot{border-color:var(--accent)}
.pcard .ch{font-size:14px;color:var(--muted)}
.pcard .pr{font-size:38px;font-weight:800;color:var(--accent2)}
.pcard .pr s{font-size:20px;font-weight:500;color:var(--muted);margin-right:8px}
.pcard .pd{font-size:13.5px;color:var(--muted);flex:1}
.pcard .btn{margin-top:12px}
.price-foot{text-align:center;color:var(--muted);font-size:13.5px;margin-top:26px}
.price-foot b{color:var(--accent2)}

/* ---- oem strip ---- */
.oemstrip{background:linear-gradient(120deg,#0b1522,#0e1f2c);border:1px solid var(--line);border-radius:var(--radius);padding:44px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.oemstrip h2{max-width:520px}
.oemstrip p{color:var(--muted);max-width:520px;margin-bottom:18px}

/* ---- player page ---- */
.page-hero{padding:90px 0 40px;text-align:center}
.page-hero h1{font-size:clamp(26px,4vw,42px);margin-bottom:16px}
.player-box{max-width:760px;margin:0 auto;background:var(--panel);border:1px solid var(--accent);border-radius:18px;padding:40px;text-align:center}
.player-box .big{font-size:clamp(17px,2.2vw,21px);line-height:1.7;margin-bottom:28px}
.player-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:32px}
.player-steps div{background:var(--bg2);border:1px solid var(--line);border-radius:12px;padding:16px;font-size:14px}
.player-steps b{display:block;color:var(--accent);margin-bottom:4px;font-size:12px;letter-spacing:1px}
.cta-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn-wa{background:#25d366;color:#062b12}
.btn-wa:hover{background:#3ee07e}
.btn-mail{background:var(--accent);color:#04222a}
.btn-mail:hover{background:var(--accent2)}
.or-divider{display:flex;align-items:center;gap:14px;margin:6px 0 30px;color:#8b98a5;font-size:14px;text-align:center}
.or-divider::before,.or-divider::after{content:"";flex:1;height:1px;background:var(--line)}

/* ---- oem form ---- */
.oem-layout{display:grid;grid-template-columns:1fr 1.2fr;gap:40px;align-items:start}
.quote{background:var(--panel);border-left:3px solid var(--accent);border-radius:12px;padding:26px;font-size:16px;line-height:1.8}
.quote .by{display:block;margin-top:14px;color:var(--muted);font-size:13.5px}
form .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
label{display:block;font-size:13px;color:var(--muted);margin:14px 0 6px}
input,select,textarea{width:100%;background:var(--bg2);border:1px solid var(--line);border-radius:9px;padding:11px 13px;color:var(--txt);font-size:14.5px;font-family:inherit}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent)}
.hint{font-size:12px;color:var(--accent);margin-top:4px}
.form-msg{margin-top:14px;font-size:14px;min-height:20px}
.form-msg.ok{color:var(--ok)}.form-msg.error{color:#f87171}
button.btn{border:none}

/* ---- floating contact ---- */
.fab{position:fixed;right:18px;bottom:22px;z-index:60;display:flex;flex-direction:column;gap:12px}
.fab-btn{width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(0,0,0,.45);transition:.2s}
.fab-btn:hover{transform:scale(1.08)}
.fab-wa{background:#25d366}
.fab-mail{background:var(--accent)}

/* media protection */
img,video{-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}

/* ---- footer ---- */
footer{border-top:1px solid var(--line);padding:36px 0;color:var(--muted);font-size:13.5px}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;align-items:center}
.socials{display:flex;gap:12px;margin-top:18px}
.socials a{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;transition:.2s}
.socials a:hover{border-color:var(--accent);background:rgba(34,211,238,.1);transform:translateY(-2px)}
.socials svg{width:19px;height:19px;fill:var(--muted)}
.socials a:hover svg{fill:var(--accent2)}

/* ---- responsive ---- */
@media(max-width:900px){
  .grid-3,.price-grid,.soft{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .gallery{grid-template-columns:1fr}
  .oem-layout{grid-template-columns:1fr}
  .strip .wrap{grid-template-columns:repeat(2,1fr)}
  .player-steps{grid-template-columns:1fr}
  .nav-links{display:none;position:absolute;top:64px;left:0;right:0;background:var(--bg2);border-bottom:1px solid var(--line);flex-direction:column;align-items:flex-start;padding:18px 20px;gap:14px}
  .nav-links.open{display:flex}
  .dropdown{position:static;display:block;box-shadow:none;border:none;background:transparent;padding:0 0 0 12px}
  .menu-toggle{display:block}
}