*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#071014;color:#f6fafb;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;line-height:1.6;overflow-x:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.shell{width:min(1180px,calc(100% - 36px));margin:auto}.topbar{height:72px;position:sticky;top:0;z-index:50;background:rgba(7,16,20,.82);backdrop-filter:blur(18px);border-bottom:1px solid rgba(255,255,255,.07);display:flex;align-items:center;padding:0 max(18px,calc((100% - 1180px)/2));gap:20px}.brand{display:flex;align-items:center;gap:11px;min-width:max-content}.brand strong{font-size:18px}.brand-img{width:42px;height:42px;object-fit:contain}.hidden{display:none!important}.logo-badge{min-width:46px;height:34px;padding:0 9px;border-radius:10px;background:linear-gradient(135deg,var(--accent,#72f04b),var(--accent2,#22c55e));color:#041006;font-weight:900;font-size:18px;display:inline-flex;align-items:center;justify-content:center;box-shadow:0 0 30px rgba(114,240,75,.18)}.nav{margin-left:auto;display:flex;gap:25px;color:#d3dde0;font-size:14px}.nav a:hover{color:#fff}.language-switch{width:auto;max-width:122px;border:1px solid rgba(255,255,255,.13);background:#0d181d;color:#dce8eb;border-radius:11px;padding:8px 30px 8px 10px;outline:none}.btn{border:0;border-radius:15px;padding:13px 19px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.2s}.btn:hover{transform:translateY(-1px)}.btn-main{background:linear-gradient(135deg,var(--accent,#72f04b),var(--accent2,#22c55e));color:#041006;box-shadow:0 12px 35px rgba(34,197,94,.23)}.btn-small{padding:9px 14px;border-radius:12px;background:var(--accent,#72f04b);color:#041006}.btn-ghost{border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.04)}.hero{min-height:620px;display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:44px;padding-top:58px;padding-bottom:58px;position:relative}.eyebrow,.kicker{letter-spacing:.14em;text-transform:uppercase;color:var(--accent,#72f04b);font-size:12px;font-weight:900}.hero h1{font-size:clamp(38px,4.6vw,60px);line-height:1.06;margin:15px 0 20px;letter-spacing:-.04em;max-width:680px}.lead{font-size:18px;color:#bac8cc;max-width:650px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.hero-actions .btn{padding:15px 24px}.download-trust{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:9px;margin-top:25px;max-width:670px}.trust-item{border:1px solid rgba(255,255,255,.09);background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.025));border-radius:14px;padding:11px 12px;min-width:0}.trust-icon{display:inline-grid;place-items:center;width:22px;height:22px;border-radius:7px;background:rgba(114,240,75,.12);color:var(--accent,#72f04b);font-size:12px;font-weight:900;margin-bottom:7px}.trust-label{display:block;color:#81969d;font-size:11px;white-space:nowrap}.trust-item b{display:block;font-size:15px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}.meta span{font-size:12px;color:#b7c6ca;border:1px solid rgba(255,255,255,.08);background:rgba(255,255,255,.03);padding:6px 9px;border-radius:999px}.hero-orbit{height:520px;position:relative;display:flex;align-items:center;justify-content:center;isolation:isolate}.kv-glow{position:absolute;width:470px;height:470px;border-radius:50%;background:radial-gradient(circle at 35% 32%,rgba(114,240,75,.24),transparent 18%),radial-gradient(circle at 63% 64%,rgba(0,162,255,.23),transparent 22%),radial-gradient(circle,rgba(16,42,47,.6),rgba(7,16,20,0) 68%);filter:blur(18px);opacity:.9;animation:glowPulse 5.5s ease-in-out infinite}.hero-globe-shell{position:relative;z-index:3;width:min(490px,100%);aspect-ratio:1;border-radius:50%;overflow:hidden;mask-image:radial-gradient(circle,#000 0 72%,rgba(0,0,0,.92) 82%,transparent 100%);-webkit-mask-image:radial-gradient(circle,#000 0 72%,rgba(0,0,0,.92) 82%,transparent 100%);filter:drop-shadow(0 22px 60px rgba(0,0,0,.38)) drop-shadow(0 0 32px rgba(18,153,255,.18));animation:globeFloat 7s ease-in-out infinite}.hero-globe-image{width:100%;height:100%;object-fit:cover;mix-blend-mode:screen;filter:saturate(.98) contrast(1.08) brightness(.95);transform:scale(1.015)}.globe-shine{position:absolute;inset:0;border-radius:50%;background:linear-gradient(135deg,rgba(255,255,255,.14),transparent 24%,transparent 66%,rgba(0,178,255,.07));pointer-events:none}.kv-ring{position:absolute;border-radius:50%;z-index:1;pointer-events:none}.ring-a{width:430px;height:430px;border:1px solid rgba(114,240,75,.18);box-shadow:0 0 34px rgba(114,240,75,.08);animation:ringBreath 5s ease-in-out infinite}.ring-b{width:500px;height:500px;border:1px dashed rgba(56,189,248,.12);animation:ringSpin 30s linear infinite}.orbital{position:absolute;width:465px;height:176px;border-radius:50%;border:2px solid rgba(114,240,75,.52);transform:rotate(-14deg);filter:drop-shadow(0 0 12px rgba(114,240,75,.55));z-index:4;animation:orbitWobble 7s ease-in-out infinite}.mini-card{position:absolute;width:104px;height:64px;border:1px solid rgba(255,255,255,.12);border-radius:15px;background:linear-gradient(135deg,rgba(18,31,36,.88),rgba(13,22,27,.76));backdrop-filter:blur(14px);display:grid;place-items:center;font-weight:900;color:#dfffe0;box-shadow:0 15px 40px rgba(0,0,0,.3);z-index:5;animation:cardFloat 5s ease-in-out infinite}.c1{top:42px;left:8px}.c2{top:58px;right:0;animation-delay:-1s}.c3{bottom:36px;left:28px;animation-delay:-2s}.c4{bottom:54px;right:18px;animation-delay:-3s}.ambient{position:fixed;width:520px;height:520px;border-radius:50%;filter:blur(120px);opacity:.1;pointer-events:none}.a1{background:#22c55e;left:-250px;top:100px}.a2{background:#38bdf8;right:-300px;top:420px}.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:78px}.feature{border:1px solid rgba(255,255,255,.08);background:#0b171c;border-radius:18px;padding:20px}.feature i{font-style:normal;font-size:24px}.feature h3{margin:10px 0 4px}.feature p{margin:0;color:#9eafb4;font-size:14px}.section{padding:72px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:30px}.section-head h2{font-size:38px;margin:5px 0 0}.section-head>p{max-width:520px;color:#9fb0b5;margin:0}.phone-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.phone-card{min-width:0}.phone{background:#0a1114;border:1px solid rgba(114,240,75,.28);padding:9px;border-radius:30px;box-shadow:0 16px 50px rgba(0,0,0,.32)}.phone img{width:100%;border-radius:22px}.caption{padding:15px 7px 0}.caption b,.caption span{display:block}.caption span{color:#93a5aa;font-size:13px;margin-top:3px}.cta-band{margin-top:40px;border-top:1px solid rgba(255,255,255,.08);border-bottom:1px solid rgba(255,255,255,.08);background:linear-gradient(90deg,rgba(34,197,94,.08),rgba(56,189,248,.04))}.cta-inner{min-height:170px;display:flex;align-items:center;justify-content:space-between;gap:20px}.cta-inner h2{font-size:34px;margin:3px 0}.install-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.step{position:relative;background:#0b171c;border:1px solid rgba(255,255,255,.08);border-radius:22px;padding:18px;overflow:hidden}.step .num{display:grid;place-items:center;width:38px;height:38px;background:var(--accent,#72f04b);color:#041006;border-radius:50%;font-weight:900}.step h3{margin:14px 0 7px}.step p{font-size:13px;color:#9cadb2;min-height:64px}.step img{margin-top:8px;border-radius:18px;width:100%;background:#1a1f28}.footer{border-top:1px solid rgba(255,255,255,.08);margin-top:40px;padding:38px 0 100px;color:#9fb0b5}.footer-inner{display:flex;justify-content:space-between;gap:30px}.footer b{color:#fff}.footer p{max-width:640px;margin:7px 0 0}.foot-links{display:flex;gap:18px;flex-wrap:wrap}.mobile-download{display:none}body.rtl{direction:rtl}body.rtl .hero-copy,body.rtl .section-head>div,body.rtl .footer,body.rtl .feature{text-align:right}body.rtl .nav{margin-left:0;margin-right:auto}body.rtl .hero-actions,body.rtl .meta,body.rtl .foot-links{flex-direction:row-reverse}body.rtl .section-head{flex-direction:row-reverse}body.rtl .cta-inner{flex-direction:row-reverse}body.rtl .caption{text-align:right}body.rtl .download-trust{direction:rtl}

@keyframes globeFloat{0%,100%{transform:translateY(0) scale(1)}50%{transform:translateY(-10px) scale(1.018)}}@keyframes glowPulse{0%,100%{transform:scale(.96);opacity:.72}50%{transform:scale(1.06);opacity:1}}@keyframes ringSpin{to{transform:rotate(360deg)}}@keyframes ringBreath{0%,100%{transform:scale(.97);opacity:.65}50%{transform:scale(1.03);opacity:1}}@keyframes orbitWobble{0%,100%{transform:rotate(-14deg) scale(1)}50%{transform:rotate(-9deg) scale(1.025)}}@keyframes cardFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}

@media(max-width:900px){.nav{display:none}.hero{grid-template-columns:1fr;padding-top:42px;min-height:auto}.hero-copy{text-align:center}.lead{margin-left:auto;margin-right:auto}.hero-actions,.meta{justify-content:center}.download-trust{margin-left:auto;margin-right:auto}.hero-orbit{height:430px;max-width:500px;width:100%;margin:auto}.hero-globe-shell{width:min(410px,100%)}.ring-a{width:370px;height:370px}.ring-b{width:430px;height:430px}.orbital{width:390px;height:145px}.mini-card{width:90px;height:58px}.feature-grid{grid-template-columns:repeat(2,1fr)}.phone-grid,.install-grid{grid-template-columns:repeat(2,1fr)}body.rtl .hero-copy{text-align:center}}
@media(max-width:620px){body{padding-bottom:78px}.topbar{height:62px;padding:0 12px;gap:10px}.topbar>.btn-small{display:none}.language-switch{max-width:98px;padding:7px 24px 7px 8px;font-size:12px}.shell{width:min(100% - 24px,1180px)}.brand strong{font-size:15px}.logo-badge{min-width:40px;height:31px;font-size:16px}.hero{padding-top:34px;padding-bottom:34px}.hero h1{font-size:36px;line-height:1.09}.lead{font-size:15px}.download-trust{grid-template-columns:repeat(2,1fr);max-width:390px}.hero-orbit{height:335px}.hero-globe-shell{width:min(305px,100%)}.ring-a{width:285px;height:285px}.ring-b{width:325px;height:325px}.orbital{width:300px;height:112px}.feature-grid{grid-template-columns:1fr 1fr;margin-bottom:25px}.feature{padding:15px}.section{padding:52px 0}.section-head{display:block;margin-bottom:20px}.section-head h2{font-size:29px}.section-head>p{margin-top:12px}.main-previews{display:flex;overflow:auto;scroll-snap-type:x mandatory;gap:13px;padding:2px 2px 12px}.main-previews .phone-card{flex:0 0 78%;scroll-snap-align:center}.install-grid{grid-template-columns:1fr}.step p{min-height:0}.cta-inner{min-height:150px;display:block;padding-top:28px;padding-bottom:28px;text-align:center}.cta-inner .btn{margin-top:15px}.footer-inner{display:block}.foot-links{margin-top:20px}.mobile-download{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:100;background:rgba(7,16,20,.94);border-top:1px solid rgba(255,255,255,.1);backdrop-filter:blur(16px);padding:9px 12px calc(9px + env(safe-area-inset-bottom));align-items:center;justify-content:space-between;gap:12px}.mobile-download b,.mobile-download small{display:block}.mobile-download small{color:#8ea0a5}.mobile-download .btn{padding:11px 15px}.footer{padding-bottom:35px}.c1,.c2,.c3,.c4{font-size:11px;width:72px;height:44px}.c1{top:28px}.c2{top:40px}.c3{bottom:24px}.c4{bottom:36px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;scroll-behavior:auto!important}}

/* ===== v1.4 Mobile First Enhancement ===== */
@media (max-width: 620px) {
  html,body{max-width:100%;overflow-x:hidden}
  body{background:#071014;padding-bottom:82px}
  .shell{width:calc(100% - 20px)}
  .topbar{
    height:58px;
    padding:0 10px;
    gap:8px;
    background:rgba(7,16,20,.94);
  }
  .brand{gap:7px}
  .brand strong{font-size:14px;max-width:115px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .logo-badge{min-width:38px;height:30px;font-size:15px;border-radius:9px}
  .language-switch{
    margin-left:auto;
    max-width:92px;
    font-size:12px;
    padding:6px 23px 6px 8px;
    border-radius:9px;
  }
  .hero{
    display:flex;
    flex-direction:column;
    gap:20px;
    padding-top:24px;
    padding-bottom:26px;
    min-height:auto;
  }
  .hero-copy{text-align:left;width:100%}
  body.rtl .hero-copy{text-align:right}
  .eyebrow{font-size:10px;letter-spacing:.12em}
  .hero h1{
    font-size:32px;
    line-height:1.08;
    letter-spacing:-.028em;
    margin:10px 0 13px;
    max-width:none;
  }
  .lead{
    font-size:14px;
    line-height:1.75;
    color:#b8c6ca;
    margin:0;
  }
  .hero-actions{
    display:grid;
    grid-template-columns:1fr;
    gap:10px;
    margin-top:20px;
  }
  .hero-actions .btn{
    width:100%;
    min-height:50px;
    border-radius:14px;
    font-size:15px;
  }
  .download-trust{
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:8px;
    margin-top:14px;
    max-width:none;
  }
  .trust-item{
    padding:10px;
    border-radius:12px;
  }
  .trust-label{font-size:10px}
  .trust-item b{font-size:14px}
  .meta{margin-top:9px;gap:6px}
  .meta span{font-size:10px;padding:5px 8px}

  /* Hero KV is now shorter and fully visible without pushing content too far down */
  .hero-orbit{
    order:2;
    width:100%;
    height:310px;
    margin:0 auto;
  }
  .hero-globe-shell{width:min(285px,84vw)}
  .kv-glow{width:300px;height:300px}
  .ring-a{width:270px;height:270px}
  .ring-b{width:308px;height:308px}
  .orbital{width:286px;height:104px}
  .mini-card{
    width:66px;
    height:40px;
    font-size:10px;
    border-radius:10px;
  }
  .c1{top:20px;left:5px}
  .c2{top:34px;right:4px}
  .c3{bottom:20px;left:14px}
  .c4{bottom:32px;right:12px}

  .feature-grid{
    grid-template-columns:1fr 1fr;
    gap:9px;
    margin-bottom:18px;
  }
  .feature{
    min-height:122px;
    padding:13px;
    border-radius:15px;
  }
  .feature i{font-size:20px}
  .feature h3{font-size:14px;margin:8px 0 4px}
  .feature p{font-size:11px;line-height:1.55}

  .section{padding:38px 0}
  .section-head{margin-bottom:16px}
  .section-head h2{font-size:25px}
  .section-head>p{
    margin-top:8px;
    font-size:12px;
    line-height:1.65;
  }

  /* APP 4张：手机端固定两张一排 */
  .main-previews{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:10px;
    overflow:visible;
    padding:0;
  }
  .main-previews .phone-card{min-width:0}
  .phone{
    padding:5px;
    border-radius:18px;
  }
  .phone img{border-radius:14px}
  .caption{padding:8px 3px 0}
  .caption b{font-size:12px;line-height:1.35}
  .caption span{font-size:10px;line-height:1.45;margin-top:3px}

  .cta-band{margin-top:20px}
  .cta-inner{
    min-height:auto;
    padding:24px 0;
    text-align:center;
  }
  .cta-inner h2{font-size:24px}
  .cta-inner .btn{
    width:100%;
    margin-top:12px;
    min-height:48px;
  }

  /* 安装教程4张：手机端固定两张一排 */
  .install-grid{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:10px;
  }
  .step{
    padding:10px;
    border-radius:16px;
    min-width:0;
  }
  .step .num{width:30px;height:30px;font-size:13px}
  .step h3{font-size:14px;line-height:1.35;margin:8px 0 4px}
  .step p{font-size:10px;min-height:58px;line-height:1.5}
  .step img{
    margin-top:8px;
    border-radius:11px;
    width:100%;
    max-height:none;
  }

  .footer{padding:28px 0 24px;margin-top:15px}
  .footer-inner{display:block}
  .footer p{font-size:11px;line-height:1.6}
  .foot-links{margin-top:14px;gap:12px;font-size:12px}

  .mobile-download{
    display:flex;
    position:fixed;
    left:0;right:0;bottom:0;
    z-index:120;
    background:rgba(7,16,20,.97);
    border-top:1px solid rgba(255,255,255,.1);
    backdrop-filter:blur(16px);
    padding:8px 10px calc(8px + env(safe-area-inset-bottom));
    gap:10px;
  }
  .mobile-download>div{min-width:0}
  .mobile-download b{
    max-width:125px;
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
    font-size:13px;
  }
  .mobile-download small{font-size:10px}
  .mobile-download .btn{
    min-width:122px;
    min-height:44px;
    padding:10px 13px;
    font-size:13px;
  }
}

/* Extra-small Android/iPhone width */
@media (max-width: 390px) {
  .hero h1{font-size:29px}
  .hero-globe-shell{width:270px}
  .hero-orbit{height:292px}
  .feature-grid{grid-template-columns:1fr 1fr}
  .main-previews{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .install-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .step{padding:8px}
  .step p{font-size:9.5px;min-height:60px}
}

/* Desktop keeps the full layout */
@media (min-width: 621px) {
  .mobile-download{display:none}
}