:root{--si:#94A3B8;--si2:#CBD5E1;--si3:#475569;--au:#EAB308;--au2:#FACC15;--au3:#A16207;--bg:#0B1120;--bg2:#111A2E;--bg3:#1A2540;--txt:#E2E8F0;--mute:#94A3B8;--dim:#64748B;
--font-cn:"PingFang SC","苹方","Microsoft YaHei","Noto Sans SC",sans-serif;--font-mono:"Share Tech Mono","Consolas","Courier New",monospace}
*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}
body{font-family:var(--font-cn);color:var(--txt);line-height:1.8;background:
radial-gradient(circle at 0 0,transparent 118px,rgba(234,179,8,.10) 119px,rgba(234,179,8,.10) 120px,transparent 121px) 0 0/240px 240px,
radial-gradient(circle at 100% 100%,transparent 78px,rgba(234,179,8,.07) 79px,rgba(234,179,8,.07) 80px,transparent 81px) 0 0/160px 160px,
linear-gradient(rgba(148,163,184,.04) 1px,transparent 1px) 0 0/20px 20px,
linear-gradient(90deg,rgba(148,163,184,.04) 1px,transparent 1px) 0 0/20px 20px,var(--bg)}
a{color:inherit;text-decoration:none;transition:.2s}img{display:block;max-width:100%;height:auto}
.w{max-width:1180px;margin:0 auto;padding:0 22px}
.mono{font-family:var(--font-mono);letter-spacing:.04em}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 26px;font-weight:700;font-size:15px;border:1px solid var(--au);color:var(--au2);border-radius:2px;background:transparent}
.btn:hover{background:rgba(234,179,8,.12)}
.btn.g{background:linear-gradient(135deg,#FACC15,#CA8A04);color:#1C1917;border-color:#CA8A04;box-shadow:0 0 20px rgba(234,179,8,.3)}
.btn.g:hover{filter:brightness(1.08)}

/* 导航 */
.nv{position:sticky;top:0;z-index:50;background:rgba(11,17,32,.96);border-bottom:1px solid var(--bg3)}
.nv:after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:3px;background:repeating-linear-gradient(90deg,var(--au3) 0 10px,transparent 10px 22px);opacity:.6}
.nv .w{display:flex;align-items:center;justify-content:space-between;height:68px;gap:14px}
.nv .logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800}
.nv .logo img{width:34px;height:34px;border-radius:4px;outline:1px solid var(--au3);outline-offset:3px}
.nv nav{display:flex;gap:20px;flex-wrap:wrap}
.nv nav a{font-size:14px;color:var(--mute)}
.nv nav a:hover{color:var(--au2)}
.nv nav a.on{color:var(--au2)}
.nv nav a.on:before{content:"● ";font-size:10px}
.nv .btn{padding:8px 18px;font-size:13px}

/* 首屏：芯片 + 四边焊盘 */
.hero{padding:60px 0 50px}
.hero .top{text-align:center;margin-bottom:34px}
.hero .top .mono{color:var(--au);font-size:13px}
.hero h1{font-size:52px;line-height:1.15;margin:10px 0 12px;font-weight:900}
.hero .top p{color:var(--mute);font-size:16px;max-width:760px;margin:0 auto}
.hero .acts{display:flex;justify-content:center;gap:14px;margin-top:22px;flex-wrap:wrap}
.pkg{display:grid;grid-template-columns:1fr 70px 460px 70px 1fr;grid-template-rows:auto 60px auto 60px auto;align-items:center;justify-items:center;margin-top:10px}
.die{grid-column:3;grid-row:3;width:460px;padding:18px;background:linear-gradient(135deg,#334155,#1E293B 50%,#334155);border:2px solid var(--si3);position:relative;box-shadow:0 0 0 10px #0F172A,0 0 0 12px var(--si3),0 20px 60px rgba(0,0,0,.6)}
.die:before{content:"";position:absolute;inset:6px;border:1px dashed rgba(234,179,8,.35);pointer-events:none}
.die img{border:1px solid var(--si3)}
.die .cap{display:flex;justify-content:space-between;font-family:var(--font-mono);font-size:11px;color:var(--si);margin-top:10px}
.pad{background:var(--bg2);border:1px solid var(--au3);padding:12px 20px;text-align:center;min-width:170px;position:relative}
.pad b{display:block;font-family:var(--font-mono);font-size:30px;color:var(--au2);line-height:1.1}
.pad span{font-size:13px;color:var(--mute)}
.pad.n{grid-column:3;grid-row:1}.pad.s{grid-column:3;grid-row:5}.pad.w{grid-column:1;grid-row:3}.pad.e{grid-column:5;grid-row:3}
.wire{background:linear-gradient(var(--au2),var(--au3));box-shadow:0 0 6px rgba(234,179,8,.6)}
.wire.v{width:2px;height:100%}.wire.h{height:2px;width:100%}
.wire.vn{grid-column:3;grid-row:2}.wire.vs{grid-column:3;grid-row:4}.wire.hw{grid-column:2;grid-row:3}.wire.he{grid-column:4;grid-row:3}

.sec{padding:60px 0}
.hd{margin-bottom:28px;padding-left:18px;border-left:3px solid var(--au)}
.hd .mono{font-size:13px;color:var(--au)}
.hd h2{font-size:34px;line-height:1.25}
.hd p{color:var(--mute)}

/* 功能：SoC 平面图 */
.floor{display:grid;grid-template-columns:repeat(6,1fr);grid-auto-rows:150px;gap:4px;padding:20px;background:#0F172A;border:2px solid var(--si3);position:relative}
.floor:before{content:"";position:absolute;inset:-10px;border:1px solid rgba(148,163,184,.2);pointer-events:none}
.blk{background:linear-gradient(135deg,rgba(148,163,184,.14),rgba(148,163,184,.04));border:1px solid var(--si3);padding:18px 20px;position:relative;transition:.2s}
.blk:hover{border-color:var(--au);background:linear-gradient(135deg,rgba(234,179,8,.14),rgba(234,179,8,.03))}
.blk .mono{position:absolute;right:12px;top:10px;font-size:11px;color:var(--au)}
.blk .ic{font-size:26px}
.blk h3{font-size:19px;margin:4px 0}
.blk p{font-size:14px;color:var(--mute)}
.b2{grid-column:span 2}.b3{grid-column:span 3}.b4{grid-column:span 4}.r2{grid-row:span 2}

/* 连接：键合图 */
.bond{display:grid;grid-template-columns:1fr 200px 1fr;align-items:center;gap:0}
.bond .col{display:flex;flex-direction:column;gap:16px}
.node{background:var(--bg2);border:1px solid var(--si3);padding:14px 18px;display:flex;align-items:center;gap:12px}
.node i{font-style:normal;width:12px;height:12px;background:var(--au);box-shadow:0 0 8px var(--au);flex:none}
.node b{display:block}.node small{color:var(--mute);font-size:13px}
.bond .col.r .node{flex-direction:row-reverse;text-align:right}
.arc{height:250px;position:relative}
.arc span{position:absolute;left:0;right:0;border:2px solid var(--au);border-bottom:none;border-radius:50% 50% 0 0/100% 100% 0 0;box-shadow:0 -2px 8px rgba(234,179,8,.35)}
.arc span:nth-child(1){top:24px;height:40px}.arc span:nth-child(2){top:94px;height:30px}.arc span:nth-child(3){top:164px;height:34px}
.arc em{position:absolute;left:50%;bottom:0;transform:translateX(-50%);font-style:normal;font-family:var(--font-mono);font-size:12px;color:var(--au);white-space:nowrap}

/* 显微视图 */
.micro{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center}
.scope{position:relative;border-radius:50%;overflow:hidden;aspect-ratio:1;border:10px solid #1E293B;box-shadow:0 0 0 2px var(--si3),inset 0 0 60px rgba(0,0,0,.8)}
.scope img{width:100%;height:100%;object-fit:cover;filter:sepia(.35) saturate(1.2)}
.scope:before,.scope:after{content:"";position:absolute;background:rgba(234,179,8,.6);z-index:1}
.scope:before{left:50%;top:0;bottom:0;width:1px}.scope:after{top:50%;left:0;right:0;height:1px}
.scope .bar{position:absolute;left:18%;bottom:16%;z-index:2;font-family:var(--font-mono);font-size:12px;color:var(--au2);border-top:3px solid var(--au2);width:90px;padding-top:2px}
.spec{list-style:none}
.spec li{display:grid;grid-template-columns:120px 1fr;gap:14px;padding:12px 0;border-bottom:1px dashed var(--si3)}
.spec li span:first-child{font-family:var(--font-mono);color:var(--au)}
.spec li span:last-child{color:var(--mute)}

/* 方案：晶圆 */
.sol{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.sol article{text-align:center}
.wafer{width:78%;margin:0 auto 16px;aspect-ratio:1;border-radius:50%;overflow:hidden;border:3px solid var(--si);clip-path:polygon(0 0,100% 0,100% 100%,56% 100%,50% 96%,44% 100%,0 100%);position:relative}
.wafer img{width:100%;height:100%;object-fit:cover}
.wafer:after{content:"";position:absolute;inset:0;background:linear-gradient(rgba(148,163,184,.2) 1px,transparent 1px) 0 0/24px 24px,linear-gradient(90deg,rgba(148,163,184,.2) 1px,transparent 1px) 0 0/24px 24px}
.sol h3{font-size:21px}.sol h3 .mono{color:var(--au);font-size:13px;margin-right:6px}
.sol p{color:var(--mute);font-size:15px}

/* 引脚表 */
.pins{width:100%;border-collapse:collapse;background:var(--bg2);border:1px solid var(--si3)}
.pins th,.pins td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--bg3)}
.pins th{font-family:var(--font-mono);font-weight:400;font-size:13px;color:var(--au);background:#0F172A}
.pins td{color:var(--mute)}
.pins td:first-child{font-family:var(--font-mono);color:var(--au2)}
.pins td b{color:var(--txt)}
.pins .btn{padding:6px 14px;font-size:13px}

/* 价格 */
.price{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.pc{background:var(--bg2);border:1px solid var(--si3);padding:30px 28px;position:relative}
.pc:before{content:"";position:absolute;left:14px;right:14px;top:-6px;height:6px;background:repeating-linear-gradient(90deg,var(--si) 0 6px,transparent 6px 14px)}
.pc.hl{border-color:var(--au)}
.pc.hl:before{background:repeating-linear-gradient(90deg,var(--au) 0 6px,transparent 6px 14px)}
.pc .mono{font-size:12px;color:var(--au)}
.pc h3{font-size:23px}
.pc .pr{font-size:32px;font-weight:900;margin:6px 0 12px}
.pc ul{list-style:none;margin-bottom:22px}.pc li{padding:5px 0;color:var(--mute);font-size:15px}.pc li:before{content:"— ";color:var(--au)}
.pc .btn{width:100%}

/* CTA */
.cta{padding:60px 0}
.cta .box{text-align:center;padding:54px 40px;background:radial-gradient(ellipse at center,rgba(234,179,8,.14),transparent 70%),var(--bg2);border:1px solid var(--au3);position:relative}
.cta .box:before,.cta .box:after{content:"";position:absolute;top:50%;width:60px;height:2px;background:var(--au)}
.cta .box:before{left:-1px}.cta .box:after{right:-1px}
.cta h2{font-size:40px;line-height:1.2}
.cta p{color:var(--mute);margin:10px 0 24px}
.cta .acts{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}

/* 子页首屏 */
.phero{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;padding:56px 0 30px}
.phero .mono{color:var(--au);font-size:13px}
.phero h1{font-size:44px;line-height:1.2;margin:10px 0 12px}
.phero p{color:var(--mute)}
.phero .acts{display:flex;gap:14px;margin-top:22px;flex-wrap:wrap}
.phero .frame{padding:14px;background:linear-gradient(135deg,#334155,#1E293B);border:2px solid var(--si3);box-shadow:0 0 0 8px #0F172A,0 0 0 10px var(--si3)}
.seq{list-style:none;counter-reset:s}
.seq li{counter-increment:s;display:grid;grid-template-columns:58px 1fr;gap:16px;padding:14px 0;border-bottom:1px dashed var(--si3);align-items:center}
.seq li:before{content:"B" counter(s);font-family:var(--font-mono);font-size:22px;color:var(--au2);border:1px solid var(--au3);text-align:center;padding:6px 0}
.seq b{display:block}.seq span{color:var(--mute);font-size:15px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center}
.two img{border:2px solid var(--si3)}

/* 帮助页 */
.faq details{background:var(--bg2);border:1px solid var(--si3);margin-bottom:12px;scroll-margin-top:100px}
.faq summary{list-style:none;cursor:pointer;display:flex;gap:14px;align-items:center;padding:16px 20px;font-size:17px;font-weight:700}
.faq summary::-webkit-details-marker{display:none}
.faq summary .mono{font-weight:400;font-size:13px;color:var(--au);border:1px solid var(--au3);padding:0 8px}
.faq details[open]{border-color:var(--au)}
.faq details div{padding:0 20px 18px;color:var(--mute)}
.duo{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.duo>div{background:var(--bg2);border:1px solid var(--si3);padding:30px;scroll-margin-top:100px}
.duo h2{font-size:24px;margin-bottom:8px}.duo p{color:var(--mute)}
.duo img{margin-top:16px}
.wide{margin-top:24px;border:2px solid var(--si3)}

/* 页脚：引线框架 */
.ft{margin-top:50px;background:#070B15;position:relative}
.ft .leads{height:28px;background:repeating-linear-gradient(90deg,var(--au3) 0 14px,transparent 14px 34px);opacity:.75;-webkit-mask:linear-gradient(transparent,#000);mask:linear-gradient(transparent,#000)}
.ft .cols{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:26px;padding:34px 22px 24px;border-top:2px solid var(--au3)}
.ft .brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800}
.ft .brand img{width:34px;height:34px;border-radius:4px}
.ft .cols p{font-size:14px;color:var(--dim);margin-top:10px}
.ft h4{font-family:var(--font-mono);font-weight:400;font-size:13px;color:var(--au);margin-bottom:10px;letter-spacing:.1em}
.ft ul{list-style:none}.ft li{padding:2px 0;font-size:14px;color:var(--mute)}.ft li a:hover{color:var(--au2)}
.ft .legal{border-top:1px solid var(--bg3);padding:16px 22px 26px;font-size:13px;color:var(--dim);text-align:center;line-height:2}

@media(prefers-reduced-motion:reduce){*{transition:none!important}html{scroll-behavior:auto}}
@media(max-width:1100px){.pkg{grid-template-columns:1fr 1fr;grid-template-rows:auto}.pkg .wire{display:none}.die{grid-column:1/-1;grid-row:1;width:100%;max-width:520px;margin-bottom:24px}.pad.n,.pad.s,.pad.w,.pad.e{grid-column:auto;grid-row:auto;margin:6px}}
@media(max-width:1000px){.nv nav{display:none}.hero h1{font-size:38px}.floor{grid-template-columns:1fr 1fr;grid-auto-rows:auto}.b2,.b3,.b4{grid-column:span 2}.r2{grid-row:auto}.bond{grid-template-columns:1fr}.arc{display:none}.bond .col.r{margin-top:16px}.micro,.phero,.two,.duo{grid-template-columns:1fr}.scope{max-width:420px;margin:0 auto}.sol,.price{grid-template-columns:1fr}.ft .cols{grid-template-columns:1fr 1fr}.pins{font-size:14px}}
@media(max-width:640px){.floor{grid-template-columns:1fr}.b2,.b3,.b4{grid-column:span 1}.hd h2{font-size:27px}.cta h2{font-size:28px}.ft .cols{grid-template-columns:1fr}.pins th:nth-child(3),.pins td:nth-child(3){display:none}.pad{min-width:0}}