:root{--orange:#FF6A00;--bg:#0A0B0F;--panel:#12141A;--txt:#E8EAF0;--muted:#9AA1AE;--line:#23262F}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{scroll-behavior:smooth}
html,body{overflow-x:hidden}
body{background:var(--bg);color:var(--txt);font-family:"SF Pro Display","SF Pro Text","Helvetica Neue",Helvetica,"PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden}
.wrap{max-width:1200px;margin:0 auto;padding:0 28px}
.nav{display:flex;justify-content:space-between;align-items:center;padding:22px 0;position:sticky;top:0;background:rgba(10,11,15,.88);backdrop-filter:blur(10px);z-index:100}
.brand{display:flex;align-items:center;gap:16px;text-decoration:none;color:var(--txt)}
.brand img{height:54px;width:auto;display:block}
.brand b{font-size:27px;letter-spacing:1px;font-weight:800;white-space:nowrap}
.brand b span{color:var(--orange)}
.nav-links{display:flex;align-items:center;gap:24px;font-size:13px;letter-spacing:1.5px;text-transform:uppercase}
.nav-links a{color:var(--muted);text-decoration:none;transition:.2s}
.nav-links a:hover,.nav-links a.on{color:var(--orange)}
a,button{touch-action:manipulation}
.lang{background:transparent;border:1px solid var(--line);color:var(--txt);padding:6px 14px;border-radius:999px;font-size:12.5px;letter-spacing:1px;cursor:pointer;transition:.2s}
.lang:hover{border-color:var(--orange);color:var(--orange)}
.page{animation:fadeUp .5s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.hero{min-height:80vh;overflow:hidden;display:flex;flex-direction:column;justify-content:center;position:relative;padding:70px 0}
.hero h1{font-size:clamp(42px,8.5vw,100px);line-height:.96;font-weight:900;letter-spacing:-2px;text-transform:uppercase}
.hero h1 .o{color:var(--orange)}
.hero p{max-width:600px;margin-top:26px;color:var(--muted);font-size:16.5px;line-height:1.7}
.hero .cta{display:inline-flex;margin-top:34px;background:var(--orange);color:#0A0B0F;font-weight:700;font-size:14px;letter-spacing:1px;padding:15px 34px;border-radius:999px;text-decoration:none;transition:.2s}
.hero .cta:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(255,106,0,.35)}
.glow{position:absolute;right:-120px;top:20%;width:520px;height:520px;background:radial-gradient(circle,rgba(255,106,0,.22),transparent 62%);pointer-events:none}
.zone{padding:84px 0;border-top:1px solid var(--line)}
.zone h2{font-size:clamp(28px,4.2vw,44px);font-weight:800;text-transform:uppercase;letter-spacing:-1px}
.zone h2 span{color:var(--orange)}
.lead{max-width:760px;margin:22px auto 0;color:var(--muted);font-size:17px;line-height:1.9;text-align:center}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:44px}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:26px}
.stat b{font-size:26px;font-weight:800;color:var(--orange);display:block}
.stat span{color:var(--muted);font-size:13px;letter-spacing:.5px;margin-top:8px;display:block}
.cats{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:40px}
.cat{background:var(--panel);border:1px solid var(--line);border-radius:20px;overflow:hidden;text-decoration:none;color:inherit;display:block;transition:.25s}
.cat:hover{transform:translateY(-4px);border-color:var(--orange)}
.cat .ph{aspect-ratio:1/1;background:#fff;display:flex;align-items:center;justify-content:center}
.cat .ph img{width:78%;object-fit:contain}
.cat .meta{padding:18px 20px 22px}
.cat .meta h3{font-size:17px;font-weight:700}
.cat .meta span{color:var(--muted);font-size:12.5px;margin-top:6px;display:block}
.tabs{display:flex;flex-wrap:wrap;gap:10px;margin:34px 0 30px}
.tab{background:var(--panel);border:1px solid var(--line);color:var(--muted);padding:9px 22px;border-radius:999px;font-size:13px;letter-spacing:1px;cursor:pointer;transition:.2s}
.tab.on,.tab:hover{background:var(--orange);border-color:var(--orange);color:#0A0B0F;font-weight:700}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.p{background:var(--panel);border:1px solid var(--line);border-radius:18px;overflow:hidden;text-decoration:none;color:inherit;display:block;transition:.25s}
.p:hover{transform:translateY(-4px);border-color:var(--orange)}
.ph{aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;background:#fff}
.ph img{width:82%;max-height:86%;object-fit:contain}
.meta{padding:18px 20px 22px}
.meta h3{font-size:15.5px;font-weight:600;line-height:1.4}
.pr{color:var(--orange);font-weight:700;margin-top:8px}
.text{max-width:860px;margin:26px auto 0}
.text p{color:var(--muted);font-size:16.5px;line-height:2;margin-bottom:20px}
.text p strong{color:var(--txt)}
.craft{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:44px}
.text p.big{border-left:3px solid var(--orange);padding-left:24px}
.text p.sign{margin-top:34px;color:var(--orange);font-weight:700;letter-spacing:.5px}
.pillar{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:44px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:28px}
.card b{font-size:17px;display:block}
.card span{color:var(--muted);font-size:14px;line-height:1.8;margin-top:12px;display:block}
.contact-inner{text-align:center;max-width:680px;margin:0 auto}
.contact-inner a{color:var(--orange);font-size:20px;text-decoration:none;font-weight:600;word-break:break-all}
.contact-inner p{color:var(--muted);margin-top:16px;line-height:1.9}
.foot{padding:40px 0 46px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px}
.foot .run{font-size:13px;letter-spacing:3px;text-transform:uppercase;color:var(--muted)}
.foot .run b{color:var(--orange)}
.foot small{color:#6B7280;font-size:12px}
[data-reveal]{opacity:0;transform:translateY(22px);transition:.7s}
[data-reveal].in{opacity:1;transform:none}

/* ===== 移动端导航（汉堡菜单 + 抽屉） ===== */
.burger{display:none;background:none;border:none;cursor:pointer;padding:8px;margin-left:10px;position:relative;z-index:125}
.burger span{display:block;width:24px;height:2px;background:var(--txt);border-radius:2px;margin:5px 0;transition:transform .25s,opacity .25s}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mnav{position:fixed;top:0;bottom:0;right:0;width:min(78vw,330px);background:var(--panel);border-left:1px solid var(--line);box-shadow:-20px 0 60px rgba(0,0,0,.45);transform:translateX(105%);transition:transform .32s ease,visibility 0s .32s;visibility:hidden;z-index:120;padding:calc(92px + env(safe-area-inset-top)) 26px 34px;display:flex;flex-direction:column;gap:2px;overflow-y:auto;-webkit-overflow-scrolling:touch}
.mnav.open{transform:none;visibility:visible;transition:transform .32s ease}
.mnav a{padding:15px 8px;font-size:15px;letter-spacing:1.5px;text-transform:uppercase;color:var(--muted);text-decoration:none;border-bottom:1px solid var(--line);transition:color .2s}
.mnav a.on,.mnav a:active{color:var(--orange)}
.mnav-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.55);opacity:0;pointer-events:none;transition:opacity .3s;z-index:115}
.mnav-backdrop.show{opacity:1;pointer-events:auto}
@media(max-width:860px){
  .grid,.cats,.pillar,.craft{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:1fr 1fr}
  .nav-links a{display:none}
  .nav-links .lang{display:inline-block}
  .burger{display:block}
  .brand img{height:38px}
  .brand b{font-size:19px}
  .brand{gap:10px}
  .nav{padding:14px 0}
  .nav-links{gap:6px}
  .wrap{padding-left:max(18px,env(safe-area-inset-left));padding-right:max(18px,env(safe-area-inset-right))}
  .hero{min-height:72vh;padding:44px 0}
  .hero p{font-size:15px;margin-top:20px}
  .hero .cta{padding:14px 28px;margin-top:26px}
  .glow{width:340px;height:340px;right:-90px}
  .zone{padding:52px 0}
  .zone h2{font-size:clamp(24px,6vw,34px)}
  .lead{font-size:15.5px;line-height:1.8}
  .stat{padding:20px}
  .stat b{font-size:22px}
  .cat .meta,.meta{padding:14px 16px 18px}
  .text p{font-size:15.5px;line-height:1.9}
  .card{padding:22px}
  .foot{padding:30px 0 36px}
}
@media(max-width:520px){
  .grid,.cats,.pillar,.craft,.stats{grid-template-columns:1fr}
  .tabs{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;margin:28px 0 26px;padding-bottom:4px}
  .tabs::-webkit-scrollbar{display:none}
  .tab{flex:0 0 auto;padding:11px 20px}
  .contact-inner a{font-size:17px}
  .hero h1{font-size:clamp(34px,11vw,46px)}
  .foot{flex-direction:column;align-items:flex-start;gap:16px}
}