/* ══════════════════════════════════════
   ROOT TOKENS
══════════════════════════════════════ */
:root {
  --bg:      #03070a;
  --bg2:     #050d12;
  --bg3:     #071018;
  --sur:     #09151f;
  --sur2:    #0d1d2a;
  --a1:      #00d4ff;   /* cyan — primary */
  --a2:      #00ffa3;   /* green — secondary */
  --a3:      #ff4060;   /* red — alert */
  --a4:      #7c3aff;   /* purple — accent */
  --warn:    #ffc107;
  --txt:     #b8d4e0;
  --dim:     #3d5e6e;
  --bright:  #e2f4ff;
  --bdr:     rgba(0,212,255,0.10);
  --glow1:   0 0 24px rgba(0,212,255,0.35);
  --glow2:   0 0 24px rgba(0,255,163,0.25);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--bg);
  color:var(--txt);
  font-family:'Noto Sans SC',sans-serif;
  overflow-x:hidden;
  cursor:none;
}
/* 链接和按钮也隐藏原生光标 */
a, button, [role="button"]{ cursor:none; }
/* 输入框保留正常光标 */
input, textarea, select { cursor:text; }
/* 触屏设备：完全恢复默认，隐藏自定义光标元素 */
@media (pointer: coarse) {
  body, a, button { cursor: auto; }
  #cur, #cur-ring { display: none !important; }
}
img,svg{max-width:100%;display:block}
a{text-decoration:none;color:inherit}

/* ══ CUSTOM CURSOR (desktop) ══ */
#cur{position:fixed;width:6px;height:6px;background:var(--a1);border-radius:50%;pointer-events:none;z-index:9999;transform:translate(-50%,-50%);transition:transform .1s;box-shadow:0 0 10px var(--a1),0 0 18px var(--a1);opacity:0;left:-100px;top:-100px}
#cur-ring{position:fixed;width:30px;height:30px;border:1px solid rgba(0,212,255,.45);border-radius:50%;pointer-events:none;z-index:9998;transform:translate(-50%,-50%);transition:width .2s,height .2s,border-color .2s;opacity:0;left:-100px;top:-100px}

/* ══ MATRIX BG ══ */
#mx{position:fixed;inset:0;opacity:.055;z-index:0;pointer-events:none}
/* scanlines */
body::after{content:'';position:fixed;inset:0;background:repeating-linear-gradient(0deg,transparent,transparent 2px,rgba(0,0,0,.025) 2px,rgba(0,0,0,.025) 4px);pointer-events:none;z-index:1}

/* ══════════════════════════════════════
   NAVIGATION
══════════════════════════════════════ */
nav{
  position:fixed;top:0;left:0;right:0;z-index:200;
  padding:0 56px;
  height:64px;
  display:flex;align-items:center;justify-content:space-between;
  background:rgba(3,7,10,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--bdr);
}

/* LOGO AREA */
.logo-wrap{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo-svg{width:42px;height:42px;flex-shrink:0}
.logo-text{display:flex;flex-direction:column;line-height:1.1;gap:4px}
.logo-cn{font-family:'Orbitron',sans-serif;font-size:15px;font-weight:700;letter-spacing:2px;color:var(--bright)}
.logo-en{font-family:'Share Tech Mono',monospace;font-size:10px;letter-spacing:3px;color:var(--a1);text-shadow:var(--glow1)}

.nav-links{display:flex;gap:30px;list-style:none}
.nav-links a{
  font-family:'Share Tech Mono',monospace;
  font-size:12px;letter-spacing:1.5px;
  color:var(--dim);text-transform:uppercase;
  transition:color .3s;position:relative;
}
.nav-links a::after{content:'';position:absolute;bottom:-4px;left:0;right:0;height:1px;background:var(--a1);transform:scaleX(0);transition:transform .3s}
.nav-links a:hover{color:var(--a1)}
.nav-links a:hover::after{transform:scaleX(1)}

.nav-cta{
  font-family:'Share Tech Mono',monospace;
  font-size:11px;font-weight:700;letter-spacing:2px;text-transform:uppercase;
  padding:9px 22px;
  border:1px solid var(--a1);color:var(--a1);
  background:rgba(0,212,255,.05);cursor:pointer;
  transition:all .3s;
  clip-path:polygon(7px 0%,100% 0%,calc(100% - 7px) 100%,0% 100%);
}
.nav-cta:hover{background:var(--a1);color:var(--bg);box-shadow:var(--glow1)}

/* hamburger */
.hamburger{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:36px;height:36px;background:transparent;
  border:1px solid var(--bdr);cursor:pointer;padding:8px;transition:border-color .3s;
}
.hamburger span{display:block;width:100%;height:1.5px;background:var(--a1);transition:all .3s}
.hamburger.open span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

/* mobile menu */
.mob-menu{
  display:none;position:fixed;inset:0;z-index:190;
  background:rgba(3,7,10,.97);backdrop-filter:blur(20px);
  flex-direction:column;align-items:center;justify-content:center;
  padding:80px 32px 40px;gap:0;
}
.mob-menu.open{display:flex}
.mob-links{list-style:none;width:100%;display:flex;flex-direction:column}
.mob-links li a{
  display:block;font-family:'Orbitron',sans-serif;
  font-size:22px;font-weight:700;letter-spacing:2px;
  text-transform:uppercase;color:var(--dim);
  padding:18px 0;border-bottom:1px solid var(--bdr);
  transition:color .3s,padding-left .3s;
}
.mob-links li a:hover{color:var(--a1);padding-left:12px}
.mob-cta{margin-top:36px;width:100%;font-family:'Share Tech Mono',monospace;font-size:14px;font-weight:700;letter-spacing:2px;text-transform:uppercase;padding:16px;background:var(--a1);color:var(--bg);border:none;cursor:pointer}

/* ══════════════════════════════════════
   HERO
══════════════════════════════════════ */
.hero{
  position:relative;z-index:2;
  min-height:100svh;
  display:flex;flex-direction:column;justify-content:center;
  padding:100px 56px 70px;
  overflow:hidden;
}
.hero::before{
  content:'';position:absolute;
  top:-200px;right:-200px;
  width:700px;height:700px;
  background:radial-gradient(circle,rgba(0,212,255,.055) 0%,transparent 65%);
  pointer-events:none;
}
.hero-inner{max-width:1280px;margin:0 auto;width:100%;display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:64px}

.hero-eyebrow{
  font-family:'Share Tech Mono',monospace;
  font-size:11px;letter-spacing:4px;color:var(--a2);
  text-transform:uppercase;margin-bottom:18px;
  display:flex;align-items:center;gap:12px;
}
.hero-eyebrow::before{content:'';width:36px;height:1px;background:var(--a2)}

.hero-h1{
  font-family:'Orbitron',sans-serif;
  font-size:clamp(38px,4.5vw,68px);
  font-weight:900;line-height:1.0;
  text-transform:uppercase;letter-spacing:-1px;
  color:var(--bright);
}
.hero-h1 .stroke{color:transparent;-webkit-text-stroke:1.5px var(--a1)}
.hero-h1 .glow{color:var(--a1);text-shadow:var(--glow1)}

/* SEO-rich subtitle — visible text crawlable by Google */
.hero-sub{
  margin-top:6px;
  font-family:'Share Tech Mono',monospace;
  font-size:12px;letter-spacing:3px;color:var(--dim);
  text-transform:uppercase;
}

.hero-desc{
  margin-top:22px;font-size:14.5px;line-height:1.9;color:var(--dim);max-width:460px;
}
/* keyword pills — SEO anchor text + UX quick glance */
.kw-pills{
  margin-top:20px;display:flex;flex-wrap:wrap;gap:8px;
}
.kw{
  font-family:'Share Tech Mono',monospace;font-size:10px;letter-spacing:1.5px;
  padding:5px 12px;border:1px solid var(--bdr);color:var(--dim);
  text-transform:uppercase;transition:all .3s;cursor:default;
}
.kw:hover,.kw.lit{border-color:var(--a1);color:var(--a1);box-shadow:0 0 8px rgba(0,212,255,.2)}
.kw.g{border-color:rgba(0,255,163,.2)}
.kw.g:hover{border-color:var(--a2);color:var(--a2)}

.hero-btns{margin-top:36px;display:flex;gap:14px;flex-wrap:wrap}
.btn-p{
  font-family:'Share Tech Mono',monospace;font-size:12px;font-weight:700;
  letter-spacing:2px;text-transform:uppercase;
  padding:13px 32px;background:var(--a1);color:var(--bg);border:none;cursor:pointer;
  clip-path:polygon(10px 0%,100% 0%,calc(100% - 10px) 100%,0% 100%);
  transition:all .3s;position:relative;overflow:hidden;
}
.btn-p::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.25),transparent);transition:left .5s}
.btn-p:hover::before{left:100%}
.btn-p:hover{box-shadow:var(--glow1)}
.btn-s{
  font-family:'Share Tech Mono',monospace;font-size:12px;font-weight:600;
  letter-spacing:2px;text-transform:uppercase;
  padding:12px 28px;border:1px solid var(--bdr);color:var(--txt);
  background:transparent;cursor:pointer;
  clip-path:polygon(10px 0%,100% 0%,calc(100% - 10px) 100%,0% 100%);
  transition:all .3s;
}
.btn-s:hover{border-color:var(--a1);color:var(--a1)}

/* hero right — service cards grid */
.hero-right{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.hcard{
  background:var(--sur);border:1px solid var(--bdr);
  padding:20px 16px;transition:all .35s;position:relative;overflow:hidden;
}
.hcard::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(0,212,255,.03),transparent);opacity:0;transition:opacity .3s}
.hcard:hover{border-color:rgba(0,212,255,.35);transform:translateY(-3px);box-shadow:0 8px 32px rgba(0,0,0,.5)}
.hcard:hover::after{opacity:1}
.hcard-icon{font-size:26px;margin-bottom:10px}
.hcard-title{font-family:'Orbitron',sans-serif;font-size:11px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:var(--bright);margin-bottom:6px}
.hcard-desc{font-size:11px;line-height:1.7;color:var(--dim)}
.hcard.featured{border-color:rgba(0,212,255,.3);box-shadow:inset 0 0 20px rgba(0,212,255,.04)}
.hcard.featured .hcard-title{color:var(--a1)}

/* ══ TRUST BAR ══ */
.trust-bar{
  position:relative;z-index:2;
  background:var(--sur);
  border-top:1px solid var(--bdr);border-bottom:1px solid var(--bdr);
  padding:0 56px;
}
.trust-inner{
  max-width:1280px;margin:0 auto;
  display:grid;grid-template-columns:repeat(4,1fr);
}
.tstat{
  text-align:center;padding:26px 10px;
  border-right:1px solid var(--bdr);
}
.tstat:last-child{border-right:none}
.tstat-n{
  font-family:'Share Tech Mono',monospace;
  font-size:34px;color:var(--a1);text-shadow:var(--glow1);display:block;
}
.tstat-l{
  font-family:'Share Tech Mono',monospace;
  font-size:10px;letter-spacing:2px;text-transform:uppercase;color:var(--dim);margin-top:4px;
}

/* ══════════════════════════════════════
   SECTION SHARED
══════════════════════════════════════ */
section{position:relative;z-index:2;padding:90px 56px}
.sec-hd{text-align:center;margin-bottom:60px}
.sec-eyebrow{
  font-family:'Share Tech Mono',monospace;font-size:10px;letter-spacing:4px;
  color:var(--a2);text-transform:uppercase;display:inline-block;margin-bottom:14px;
}
.sec-title{
  font-family:'Orbitron',sans-serif;
  font-size:clamp(26px,3.5vw,46px);font-weight:700;
  text-transform:uppercase;color:var(--bright);
  letter-spacing:-0.5px;line-height:1.1;
}
.sec-title span{color:var(--a1)}
.sec-line{width:48px;height:2px;background:linear-gradient(90deg,var(--a1),transparent);margin:16px auto 0}
.sec-desc{font-size:14px;line-height:1.9;color:var(--dim);max-width:600px;margin:16px auto 0}

/* ══════════════════════════════════════
   SERVICES SECTION
══════════════════════════════════════ */
.srv-section{background:var(--bg2)}
.srv-grid{max-width:1280px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:2px}
.sc{
  background:var(--sur);padding:40px 30px;
  position:relative;overflow:hidden;
  transition:all .4s;border:1px solid transparent;
}
.sc::before{
  content:'';position:absolute;top:0;left:0;width:100%;height:2px;
  background:linear-gradient(90deg,var(--a1),transparent);
  transform:scaleX(0);transform-origin:left;transition:transform .4s;
}
.sc:hover{background:var(--sur2);border-color:var(--bdr);transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,.5)}
.sc:hover::before{transform:scaleX(1)}
.sc-num{font-family:'Share Tech Mono',monospace;font-size:10px;color:var(--dim);letter-spacing:2px;margin-bottom:20px}
.sc-icon{font-size:32px;margin-bottom:16px;display:block}
.sc-title{font-family:'Orbitron',sans-serif;font-size:14px;font-weight:700;text-transform:uppercase;letter-spacing:1px;color:var(--bright);margin-bottom:12px}
.sc-title span{color:var(--a1)}
.sc-desc{font-size:13px;line-height:1.85;color:var(--dim)}
.sc-tags{margin-top:20px;display:flex;flex-wrap:wrap;gap:7px}
.stag{font-family:'Share Tech Mono',monospace;font-size:9px;letter-spacing:1px;padding:3px 9px;border:1px solid var(--bdr);color:var(--dim);text-transform:uppercase;transition:all .3s}
.stag.a{border-color:rgba(0,212,255,.3);color:var(--a1)}
.stag.b{border-color:rgba(0,255,163,.3);color:var(--a2)}
.stag.c{border-color:rgba(255,64,96,.3);color:var(--a3)}

/* ══════════════════════════════════════
   FRIDA / WORKFLOW SECTION
══════════════════════════════════════ */
.flow-section{background:var(--bg)}
.flow-inner{max-width:1280px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center}

/* Terminal */
.term-wrap{position:relative}
.term-glow{position:absolute;inset:-20px;background:radial-gradient(ellipse at 50% 50%,rgba(0,212,255,.06),transparent 70%);pointer-events:none}
.terminal{background:#010a0f;border:1px solid var(--bdr);overflow:hidden;box-shadow:0 24px 64px rgba(0,0,0,.8);position:relative;z-index:1}
.tbar{background:var(--sur);padding:11px 14px;display:flex;align-items:center;gap:7px;border-bottom:1px solid var(--bdr)}
.td{width:10px;height:10px;border-radius:50%}
.td.r{background:#ff5f57}.td.y{background:#febc2e}.td.g{background:#28c840}
.tname{font-family:'Share Tech Mono',monospace;font-size:10px;color:var(--dim);margin-left:auto;letter-spacing:1px}
.tbody{padding:22px 20px 26px;font-family:'Share Tech Mono',monospace;font-size:12px;line-height:1.85;overflow-x:auto}
.tl{display:flex;gap:8px;flex-wrap:wrap}
.tp{color:var(--a2)}.tc{color:var(--bright)}.to{color:#5aa8b8;padding-left:18px}.ts{color:var(--a2);padding-left:18px}.tw{color:var(--warn);padding-left:18px}.te{color:var(--a3);padding-left:18px}.th{color:var(--a1)}.tco{color:var(--dim)}
.blink{display:inline-block;width:7px;height:12px;background:var(--a1);animation:blink 1s step-end infinite;vertical-align:middle}
@keyframes blink{50%{opacity:0}}

.flow-content h3{font-family:'Orbitron',sans-serif;font-size:clamp(22px,2.5vw,34px);font-weight:700;text-transform:uppercase;color:var(--bright);margin-bottom:8px}
.flow-content .sub{font-family:'Share Tech Mono',monospace;font-size:10px;letter-spacing:3px;color:var(--a1);margin-bottom:20px}
.flow-content p{font-size:13.5px;line-height:1.9;color:var(--dim);margin-bottom:16px}

.step-list{display:flex;flex-direction:column;gap:12px;margin-top:24px}
.step{display:flex;align-items:flex-start;gap:16px;padding:14px 16px;background:var(--sur);border:1px solid var(--bdr);transition:border-color .3s}
.step:hover{border-color:rgba(0,212,255,.3)}
.step-n{font-family:'Share Tech Mono',monospace;font-size:11px;color:var(--a1);flex-shrink:0;margin-top:2px}
.step-body{}
.step-t{font-family:'Orbitron',sans-serif;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:1px;color:var(--bright);margin-bottom:3px}
.step-d{font-size:12px;color:var(--dim);line-height:1.6}

/* ══════════════════════════════════════
   PROTOCOL / PACKET SECTION
══════════════════════════════════════ */
.proto-section{background:var(--bg2);border-top:1px solid var(--bdr);border-bottom:1px solid var(--bdr)}
.proto-inner{max-width:1280px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:start}

.proto-cards{display:flex;flex-direction:column;gap:12px}
.pc{background:var(--sur);border:1px solid var(--bdr);padding:22px 20px;transition:all .35s;display:flex;gap:16px;align-items:flex-start}
.pc:hover{border-color:rgba(0,212,255,.3);background:var(--sur2)}
.pc-icon{font-size:22px;flex-shrink:0;margin-top:2px}
.pc-body{}
.pc-t{font-family:'Orbitron',sans-serif;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:1px;color:var(--bright);margin-bottom:5px}
.pc-d{font-size:12px;line-height:1.7;color:var(--dim)}
.pc-chips{margin-top:8px;display:flex;flex-wrap:wrap;gap:6px}
.chip{font-family:'Share Tech Mono',monospace;font-size:9px;padding:2px 8px;border:1px solid var(--bdr);color:var(--dim)}

.proto-content h3{font-family:'Orbitron',sans-serif;font-size:clamp(20px,2.2vw,30px);font-weight:700;text-transform:uppercase;color:var(--bright);margin-bottom:8px}
.proto-content .sub{font-family:'Share Tech Mono',monospace;font-size:10px;letter-spacing:3px;color:var(--a2);margin-bottom:20px}
.proto-content p{font-size:13.5px;line-height:1.9;color:var(--dim);margin-bottom:14px}

/* packet hex visualizer */
.hex-dump{
  background:#010a0f;border:1px solid var(--bdr);
  padding:16px 16px;font-family:'Share Tech Mono',monospace;font-size:11px;
  line-height:1.9;margin-top:20px;overflow-x:auto;
}
.hd-row{display:flex;gap:10px;align-items:baseline}
.hd-addr{color:var(--dim);flex-shrink:0;min-width:52px}
.hd-hex{color:var(--a1);letter-spacing:1px;flex:1}
.hd-ascii{color:var(--dim);flex-shrink:0}
.hd-hex .hl{color:var(--a2)}
.hd-hex .hl2{color:var(--a3)}

/* ══════════════════════════════════════
   TOOLS / ECOSYSTEM
══════════════════════════════════════ */
.tools-section{background:var(--bg)}
.tools-grid{max-width:1280px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.tool-card{
  background:var(--sur);border:1px solid var(--bdr);
  padding:24px 20px;text-align:center;transition:all .35s;
}
.tool-card:hover{border-color:rgba(0,212,255,.35);transform:translateY(-4px);box-shadow:0 8px 32px rgba(0,0,0,.4)}
.tool-icon{font-size:28px;margin-bottom:12px}
.tool-name{font-family:'Orbitron',sans-serif;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:1px;color:var(--bright);margin-bottom:6px}
.tool-cat{font-family:'Share Tech Mono',monospace;font-size:9px;letter-spacing:2px;text-transform:uppercase;padding:3px 8px;display:inline-block;margin-bottom:8px}
.tool-cat.android{border:1px solid rgba(0,255,163,.3);color:var(--a2)}
.tool-cat.pc{border:1px solid rgba(0,212,255,.3);color:var(--a1)}
.tool-cat.network{border:1px solid rgba(124,58,255,.3);color:var(--a4)}
.tool-cat.multi{border:1px solid rgba(255,193,7,.3);color:var(--warn)}
.tool-desc{font-size:11px;line-height:1.65;color:var(--dim)}

/* ══════════════════════════════════════
   CTA
══════════════════════════════════════ */
.cta-section{
  position:relative;z-index:2;
  padding:110px 56px;overflow:hidden;
}
.cta-glow{position:absolute;inset:0;background:radial-gradient(ellipse at 50% 60%,rgba(0,212,255,.06),transparent 68%);pointer-events:none}
.cta-wrap{max-width:680px;margin:0 auto;text-align:center;position:relative}
.cta-wrap h2{font-family:'Orbitron',sans-serif;font-size:clamp(28px,4.5vw,56px);font-weight:900;text-transform:uppercase;color:var(--bright);line-height:1.1;margin-bottom:20px}
.cta-wrap h2 span{color:var(--a1);text-shadow:var(--glow1)}
.cta-wrap p{font-size:14px;line-height:1.9;color:var(--dim);margin-bottom:38px}
.input-row{display:flex;max-width:480px;margin:0 auto 28px}
.ei{
  flex:1;background:var(--sur);border:1px solid var(--bdr);border-right:none;
  padding:13px 18px;color:var(--txt);
  font-family:'Share Tech Mono',monospace;font-size:12px;outline:none;transition:border-color .3s;
}
.ei:focus{border-color:var(--a1)}
.ei::placeholder{color:var(--dim)}
.trust-chips{display:flex;gap:24px;justify-content:center;flex-wrap:wrap}
.tchi{display:flex;align-items:center;gap:7px;font-size:12px;color:var(--dim)}
.tchi span.ok{color:var(--a2);font-size:14px}

/* ══════════════════════════════════════
   FOOTER
══════════════════════════════════════ */
footer{position:relative;z-index:2;background:var(--bg2);border-top:1px solid var(--bdr);padding:56px 56px 28px}
.foot-grid{max-width:1280px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:52px;margin-bottom:44px}
.foot-brand .logo-wrap{margin-bottom:14px}
.foot-brand p{font-size:12.5px;line-height:1.85;color:var(--dim);max-width:260px}
.foot-brand .seo-kw{margin-top:12px;display:flex;flex-wrap:wrap;gap:6px}
.foot-brand .seo-kw span{font-family:'Share Tech Mono',monospace;font-size:9px;padding:2px 7px;border:1px solid var(--bdr);color:var(--dim);letter-spacing:1px}
.foot-col h4{font-family:'Orbitron',sans-serif;font-size:10px;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--bright);margin-bottom:18px}
.foot-col ul{list-style:none;display:flex;flex-direction:column;gap:9px}
.foot-col ul li a{font-size:12.5px;color:var(--dim);transition:color .3s;display:flex;align-items:center;gap:7px}
.foot-col ul li a:hover{color:var(--a1)}
.foot-col ul li a::before{content:'▸';font-size:8px;color:var(--a1);opacity:.4}
.foot-bottom{max-width:1280px;margin:0 auto;padding-top:22px;border-top:none;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}
.foot-copy{font-family:'Share Tech Mono',monospace;font-size:10px;color:var(--dim);letter-spacing:1px}
.foot-badges{display:flex;gap:10px;flex-wrap:wrap}
.fb{font-family:'Share Tech Mono',monospace;font-size:9px;padding:3px 9px;border:1px solid var(--bdr);color:var(--dim);letter-spacing:1px}

/* ══════════════════════════════════════
   ANIMATIONS
══════════════════════════════════════ */
@keyframes fadeUp{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:translateY(0)}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(0,212,255,.3)}50%{box-shadow:0 0 0 8px rgba(0,212,255,0)}}

.hero-eyebrow,.hero-h1,.hero-sub,.hero-desc,.kw-pills,.hero-btns{opacity:0;animation:fadeUp .7s ease forwards}
.hero-eyebrow{animation-delay:.1s}
.hero-h1{animation-delay:.25s}
.hero-sub{animation-delay:.35s}
.hero-desc{animation-delay:.45s}
.kw-pills{animation-delay:.55s}
.hero-btns{animation-delay:.65s}
.hcard{animation:fadeUp .6s ease forwards;opacity:0}
.hcard:nth-child(1){animation-delay:.3s}
.hcard:nth-child(2){animation-delay:.4s}
.hcard:nth-child(3){animation-delay:.5s}
.hcard:nth-child(4){animation-delay:.6s}
.hcard:nth-child(5){animation-delay:.7s}
.hcard:nth-child(6){animation-delay:.8s}

/* ══════════════════════════════════════
   SCROLLBAR
══════════════════════════════════════ */
::-webkit-scrollbar{width:4px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--a1)}

/* ══════════════════════════════════════
   CONSULT MODAL
══════════════════════════════════════ */
.modal-overlay{
  position:fixed;inset:0;z-index:1000;
  background:rgba(3,7,10,.85);
  backdrop-filter:blur(12px);
  display:flex;align-items:center;justify-content:center;
  padding:20px;
  opacity:0;pointer-events:none;
  transition:opacity .3s;
}
.modal-overlay.open{opacity:1;pointer-events:all}
.modal-box{
  background:var(--bg2);
  border:1px solid rgba(0,212,255,.25);
  width:100%;max-width:520px;
  position:relative;
  box-shadow:0 0 60px rgba(0,212,255,.1),0 32px 80px rgba(0,0,0,.8);
  transform:translateY(24px) scale(.97);
  transition:transform .35s cubic-bezier(.22,1,.36,1);
}
.modal-overlay.open .modal-box{transform:translateY(0) scale(1)}
.modal-top-bar{
  height:3px;
  background:linear-gradient(90deg,var(--a1),var(--a2),var(--a1));
}
.modal-head{
  padding:28px 28px 0;
  display:flex;align-items:flex-start;justify-content:space-between;
  border-bottom:1px solid var(--bdr);
  padding-bottom:20px;
}
.modal-logo{display:flex;align-items:center;gap:10px}
.modal-logo svg{width:32px;height:32px}
.modal-brand{font-family:'Orbitron',sans-serif;font-size:13px;font-weight:700;color:var(--bright)}
.modal-brand-en{font-family:'Share Tech Mono',monospace;font-size:9px;letter-spacing:3px;color:var(--a1)}
.modal-close{
  width:32px;height:32px;
  background:transparent;border:1px solid var(--bdr);
  color:var(--dim);font-size:16px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transition:all .2s;flex-shrink:0;
}
.modal-close:hover{border-color:var(--a3);color:var(--a3)}

.modal-body{padding:24px 28px 28px;display:flex;flex-direction:column;gap:16px}
.modal-title{font-family:'Orbitron',sans-serif;font-size:20px;font-weight:700;color:var(--bright);margin-bottom:2px}
.modal-sub{font-size:12px;color:var(--dim);line-height:1.6;margin-bottom:4px}

/* contact methods in modal */
.modal-methods{display:flex;flex-direction:column;gap:10px}
.mmethod{
  display:flex;align-items:center;gap:14px;
  background:var(--sur);border:1px solid var(--bdr);
  padding:14px 16px;transition:border-color .3s;
}
.mmethod:hover{border-color:rgba(0,212,255,.3)}
.mm-icon{font-size:20px;flex-shrink:0}
.mm-body{flex:1}
.mm-label{font-family:'Share Tech Mono',monospace;font-size:9px;letter-spacing:2px;text-transform:uppercase;color:var(--dim);margin-bottom:3px}
.mm-val{font-family:'Orbitron',sans-serif;font-size:14px;font-weight:700;color:var(--bright);text-decoration:none;transition:color .2s}
a.mm-val:hover{color:var(--a1)}
.mm-sub{font-size:11px;color:var(--dim);margin-top:2px}
.mm-arrow{color:var(--dim);font-size:12px}

.modal-divider{display:flex;align-items:center;gap:12px;color:var(--dim);font-family:'Share Tech Mono',monospace;font-size:10px;letter-spacing:2px}
.modal-divider::before,.modal-divider::after{content:'';flex:1;height:1px;background:var(--bdr)}

/* QR in modal */
.modal-qr{display:flex;align-items:center;gap:20px;background:var(--sur);border:1px solid var(--bdr);padding:16px}
.modal-qr-img{
  width:88px;height:88px;flex-shrink:0;
  border:1px solid var(--bdr);background:#010a0f;
  display:flex;align-items:center;justify-content:center;
  position:relative;overflow:hidden;
}
.modal-qr-img::before,.modal-qr-img::after{content:'';position:absolute;width:10px;height:10px}
.modal-qr-img::before{top:0;left:0;border-top:1.5px solid var(--a1);border-left:1.5px solid var(--a1)}
.modal-qr-img::after{bottom:0;right:0;border-bottom:1.5px solid var(--a1);border-right:1.5px solid var(--a1)}
.modal-qr-txt{}
.modal-qr-title{font-family:'Orbitron',sans-serif;font-size:13px;font-weight:700;color:var(--bright);margin-bottom:5px}
.modal-qr-id{font-family:'Share Tech Mono',monospace;font-size:12px;color:var(--a1);letter-spacing:1px;margin-bottom:4px}
.modal-qr-note{font-size:11px;color:var(--dim);line-height:1.5}

.modal-tags{display:flex;flex-wrap:wrap;gap:7px}
.modal-tag{font-family:'Share Tech Mono',monospace;font-size:9px;padding:3px 9px;border:1px solid var(--bdr);color:var(--dim);letter-spacing:1px}

@media(max-width:600px){
  .modal-box{margin:0}
  .modal-head{padding:20px 18px 16px}
  .modal-body{padding:18px 18px 22px}
  .modal-title{font-size:17px}
  .modal-qr{flex-direction:column;align-items:flex-start}
}

.contact-grid{
  max-width:1280px;margin:0 auto;
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;
}

/* info cards */
.contact-left{display:flex;flex-direction:column;gap:14px}
.cinfo-card{
  display:flex;align-items:flex-start;gap:18px;
  background:var(--sur);border:1px solid var(--bdr);
  padding:20px 22px;transition:all .35s;
}
.cinfo-card:hover{border-color:rgba(0,212,255,.3);background:var(--sur2)}
.cinfo-icon{font-size:22px;flex-shrink:0;margin-top:2px}
.cinfo-label{
  font-family:'Share Tech Mono',monospace;font-size:9px;
  letter-spacing:3px;text-transform:uppercase;color:var(--dim);margin-bottom:5px;
}
.cinfo-val{
  display:block;font-family:'Orbitron',sans-serif;font-size:15px;
  font-weight:700;color:var(--bright);text-decoration:none;
  transition:color .3s;letter-spacing:.5px;
}
a.cinfo-val:hover{color:var(--a1)}
.cinfo-sub{font-size:11px;color:var(--dim);margin-top:4px}

.trust-list{
  background:var(--sur);border:1px solid var(--bdr);
  padding:20px 22px;display:flex;flex-direction:column;gap:11px;
  margin-top:6px;
}
.tl-item{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--dim);line-height:1.5}
.tl-ok{color:var(--a2);font-size:14px;flex-shrink:0;margin-top:1px}

/* QR card */
.contact-right{display:flex;justify-content:center}
.qr-card{
  background:var(--sur);border:1px solid rgba(0,212,255,.2);
  padding:24px 24px 22px;
  display:flex;flex-direction:column;align-items:center;gap:18px;
  max-width:360px;width:100%;
  box-shadow:0 0 40px rgba(0,212,255,.06);
  position:relative;overflow:hidden;
}
.qr-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--a1),var(--a2),var(--a1));
}
.qr-top{display:flex;align-items:center;gap:14px;width:100%}
.qr-icon{
  width:44px;height:44px;background:rgba(0,212,255,.08);
  border:1px solid var(--bdr);display:flex;align-items:center;justify-content:center;
  font-size:22px;flex-shrink:0;
}
.qr-title{font-family:'Orbitron',sans-serif;font-size:14px;font-weight:700;color:var(--bright);margin-bottom:3px}
.qr-sub{font-size:11px;color:var(--dim)}

.qr-frame{
  width:236px;height:236px;
  border:1px solid var(--bdr);
  background:#03070a;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  position:relative;overflow:hidden;
}
.qr-frame::before,.qr-frame::after{
  content:'';position:absolute;
  width:18px;height:18px;
}
.qr-frame::before{top:0;left:0;border-top:2px solid var(--a1);border-left:2px solid var(--a1)}
.qr-frame::after{bottom:0;right:0;border-bottom:2px solid var(--a1);border-right:2px solid var(--a1)}

/* scan animation */
.qr-frame svg{position:relative;z-index:1}
.qr-scanline{
  position:absolute;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--a1),transparent);
  animation:qrscan 2.4s ease-in-out infinite;
  z-index:2;opacity:.7;
}
@keyframes qrscan{0%{top:8px;opacity:.8}50%{top:calc(100% - 8px);opacity:.8}51%{opacity:0}100%{top:8px;opacity:0}}

.qr-wechat-id{
  display:flex;align-items:center;gap:10px;
  background:var(--sur2);border:1px solid var(--bdr);
  padding:10px 20px;width:100%;justify-content:center;
}
.qr-wid-label{font-family:'Share Tech Mono',monospace;font-size:9px;letter-spacing:2px;text-transform:uppercase;color:var(--dim)}
.qr-wid-val{font-family:'Share Tech Mono',monospace;font-size:14px;color:var(--a1);letter-spacing:1px}

.qr-note{font-size:11px;color:var(--dim);text-align:center}

/* ══ FOOTER RECORD BAR ══ */
.foot-record{
  max-width:1280px;margin:0 auto 20px;
  padding:14px 0;border-top:1px solid var(--bdr);border-bottom:1px solid var(--bdr);
}
.record-inner{
  display:flex;align-items:center;justify-content:center;
  gap:12px;flex-wrap:wrap;
}
.record-link{
  font-family:'Share Tech Mono',monospace;font-size:11px;
  color:var(--dim);text-decoration:none;
  display:flex;align-items:center;gap:6px;
  transition:color .3s;letter-spacing:.5px;
}
.record-link:hover{color:var(--a1)}
.police-icon{flex-shrink:0}
.record-sep{color:var(--bdr);font-size:12px}
.record-txt{font-family:'Share Tech Mono',monospace;font-size:11px;color:var(--dim);letter-spacing:.5px}

/* ══ RESPONSIVE ADDITIONS ══ */
@media(max-width:900px){
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .contact-right{justify-content:flex-start}
}
@media(max-width:600px){
  .qr-card{max-width:100%}
  .record-inner{flex-direction:column;gap:8px;text-align:center}
  .record-sep{display:none}
}

@media(max-width:1100px){
  .srv-grid{grid-template-columns:repeat(2,1fr)}
  .tools-grid{grid-template-columns:repeat(2,1fr)}
  .flow-inner,.proto-inner{gap:40px}
}

@media(max-width:900px){
  nav{padding:0 28px}
  .nav-links,.nav-cta{display:none}
  .hamburger{display:flex}

  .hero,.cta-section{padding:88px 28px 60px}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-right{display:none}

  section{padding:64px 28px}
  .trust-bar{padding:0 28px}

  .srv-grid{grid-template-columns:1fr}
  .flow-inner,.proto-inner{grid-template-columns:1fr;gap:36px}
  .tools-grid{grid-template-columns:repeat(2,1fr);gap:10px}

  footer{padding:44px 28px 22px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .foot-brand{grid-column:1/-1}
  .foot-bottom{flex-direction:column;text-align:center}
}

@media(max-width:600px){
  .hero{padding:80px 18px 50px}
  section{padding:50px 18px}
  .trust-bar{padding:0 18px}
  .trust-inner{grid-template-columns:repeat(2,1fr)}
  .tstat{border-right:none;border-bottom:1px solid var(--bdr);padding:18px 10px}
  .tstat:nth-child(odd){border-right:1px solid var(--bdr)}
  .tstat:nth-child(3),.tstat:nth-child(4){border-bottom:none}
  .tstat-n{font-size:26px}
  .srv-grid,.tools-grid{grid-template-columns:1fr}
  .hero-h1{font-size:clamp(32px,10vw,50px)}
  .hero-btns{flex-direction:column}
  .btn-p,.btn-s{width:100%;clip-path:none;text-align:center}
  .input-row{flex-direction:column}
  .ei{border-right:1px solid var(--bdr);border-bottom:none}
  footer{padding:40px 18px 20px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-brand{grid-column:auto}
  .cta-section{padding:70px 18px}
  .hex-dump{font-size:10px}
  nav{padding:0 16px}
  .logo-cn{font-size:13px}
}

/* ══ LANG SWITCHER ══ */
.lang-switch{display:flex;align-items:center;gap:0;margin-left:12px;flex-shrink:0}
.lang-btn{font-family:'Share Tech Mono',monospace;font-size:10px;letter-spacing:1.5px;padding:5px 10px;background:transparent;border:1px solid var(--bdr);color:var(--dim);cursor:pointer;transition:all .25s;text-transform:uppercase}
.lang-btn:first-child{border-right:none}
.lang-btn.active{background:rgba(0,212,255,.1);color:var(--a1);border-color:rgba(0,212,255,.35)}
.lang-btn:hover:not(.active){color:var(--txt);border-color:rgba(0,212,255,.2)}
/* hide/show lang spans */
.en-text{display:none}
.zh-text{display:inline}
html.en .en-text{display:inline}
html.en .zh-text{display:none}
/* block-level bilingual */
.en-block{display:none}
.zh-block{display:block}
html.en .en-block{display:block}
html.en .zh-block{display:none}
/* flex-level bilingual */
.en-flex{display:none}
.zh-flex{display:flex}
html.en .en-flex{display:flex}
html.en .zh-flex{display:none}