:root{--red:#D32F2F;--red-dark:#8f1d1d;--navy:#091827;--ink:#172737;--muted:#607384;--paper:#f4f8fa;--line:#dce7ed}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"Noto Sans SC",Arial,sans-serif;color:var(--ink);background:var(--paper)}a{color:inherit;text-decoration:none}.site-nav{position:sticky;top:0;z-index:20;background:#fffE;backdrop-filter:blur(14px);border-bottom:1px solid #dbe5eb}.nav-inner{max-width:1240px;margin:auto;padding:16px 24px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:10px;font-weight:900;font-size:1.2rem}.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:9px;background:var(--red);color:#fff;box-shadow:0 7px 18px #d32f2f35}.nav-links{display:flex;gap:22px;align-items:center;font-size:.9rem;color:#506170}.nav-links a{padding:9px 0;border-bottom:2px solid transparent}.nav-links a:hover,.nav-links a[aria-current=page]{color:var(--red);border-bottom-color:var(--red)}.nav-cta{padding:10px 15px;border-radius:8px;background:var(--red);color:#fff;font-weight:700;box-shadow:0 8px 22px #d32f2f35}.nav-cta:hover{background:#ed3f42}.page-hero{background:radial-gradient(ellipse at 80% 0%,#15374b,#0a1927 62%,#07111c);color:#f4f8fc;padding:96px 24px 86px}.page-hero-inner,.content{max-width:1120px;margin:auto}.eyebrow{color:#ff7772;font:700 .72rem/1.2 ui-monospace,monospace;letter-spacing:.2em}.page-hero h1{margin:16px 0;font-size:clamp(2.4rem,6vw,4.8rem);letter-spacing:-.05em}.page-hero p{max-width:700px;color:#b7c7d2;line-height:1.9;font-size:1.05rem}.page-main{padding:72px 24px}.section-head{max-width:780px;margin:0 auto 42px;text-align:center}.section-head h2{margin:10px 0;font-size:clamp(2rem,4vw,3rem);letter-spacing:-.04em}.section-head p{color:var(--muted);line-height:1.9}.grid{display:grid;gap:18px}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.card{padding:28px;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:0 14px 38px #102b3c0d;transition:transform .25s,border-color .25s,box-shadow .25s}.card:hover{transform:translateY(-6px);border-color:var(--red);box-shadow:0 20px 45px #d32f2f20}.card-icon{display:grid;place-items:center;width:52px;height:52px;margin-bottom:18px;border-radius:14px;background:#f9e5e3;color:var(--red);font-size:1.25rem}.card h3{margin:0 0 10px;font-size:1.25rem}.card p{margin:0;color:var(--muted);line-height:1.8}.number{color:var(--red);font:700 .7rem/1 ui-monospace,monospace;letter-spacing:.15em}.band{margin:48px 0;padding:40px;border-radius:22px;background:linear-gradient(135deg,#d32f2f,#8f1d1d);color:#fff}.band h2{margin:0 0 12px}.band p{max-width:760px;color:#ffe2df;line-height:1.9}.list{display:grid;gap:14px}.list-item{padding:20px 22px;border-left:4px solid var(--red);border-radius:0 12px 12px 0;background:#fff;box-shadow:0 10px 25px #102b3c0b}.list-item strong{display:block;margin-bottom:6px}.list-item span{color:var(--muted);line-height:1.8}.footer{margin-top:50px;background:#07111c;color:#b8c8d3}.footer-inner{max-width:1120px;margin:auto;padding:32px 24px;display:flex;justify-content:space-between;gap:24px}.footer a:hover{color:#ff7772}.mobile-note{display:none}@media(max-width:900px){.nav-links{gap:12px}.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(2,1fr)}}@media(max-width:640px){.nav-inner{padding:12px 16px}.nav-links,.nav-cta{display:none}.mobile-note{display:block;color:var(--red);font-size:.75rem}.page-hero{padding:70px 20px}.page-main{padding:52px 20px}.grid-3,.grid-4{grid-template-columns:1fr}.footer-inner{flex-direction:column}}
/* Brand red gradient surfaces */
.page-hero{background:radial-gradient(ellipse at 78% 0%,#8f1d1d 0%,#4d080b 38%,#190204 78%),linear-gradient(145deg,#190204,#D32F2F);position:relative;overflow:hidden}
.page-hero::after{content:'';position:absolute;inset:0;opacity:.16;background-image:linear-gradient(#ff777214 1px,transparent 1px),linear-gradient(90deg,#ff777214 1px,transparent 1px);background-size:44px 44px;mask-image:linear-gradient(90deg,transparent,#000)}
.page-hero-inner{position:relative;z-index:1}
.page-hero p{color:#ffe1df}.eyebrow{color:#ff9a93}
.band{background:linear-gradient(145deg,#D32F2F 0%,#a51f27 45%,#4d080b 100%);box-shadow:0 18px 42px #8f1d1d30}
.footer{background:radial-gradient(ellipse at 82% 0%,#D32F2F 0%,#8f1d1d 38%,#190204 100%);color:#ffe1df;border-top:1px solid #ff777233}.footer a{color:#fff}.footer a:hover{color:#ffd0a3}
.footer-inner span{font-size:0}.footer-inner span::after{content:'广州市禾目数智科技有限公司　备案号：粤ICP备2026014431号-1';font-size:.8rem;color:#ffe1df}
.nav-links a[href="about.html"]{order:4}
.nav-links a.is-active{color:var(--red);border-bottom-color:var(--red)}.mobile-nav-toggle{display:none;border:0;background:transparent;color:var(--ink);font-size:1.15rem;padding:8px}.mobile-nav-panel{display:none}
@media(max-width:640px){.mobile-nav-toggle{display:block}.mobile-nav-panel{display:none;padding:8px 20px 16px;border-top:1px solid #e7edf0;background:#fff}.mobile-nav-panel.is-open{display:grid}.mobile-nav-panel a{padding:13px 0;border-bottom:1px solid #edf1f3;color:#506170}.mobile-nav-panel a.is-active,.mobile-nav-panel a:last-child{color:var(--red);font-weight:700}}
.nav-menu-group{position:relative}.nav-menu-trigger{display:inline-flex;align-items:center;gap:6px}.nav-menu-trigger i{font-size:.58rem;transition:transform .2s}.nav-menu-group:hover .nav-menu-trigger i{transform:rotate(180deg)}.nav-mega{position:absolute;top:calc(100% + 8px);left:50%;display:grid;grid-template-columns:repeat(2,1fr);gap:16px;width:570px;padding:22px;border:1px solid #d32f2f22;border-radius:14px;background:#fff;box-shadow:0 20px 45px #102b3c25;opacity:0;visibility:hidden;transform:translate(-50%,8px);transition:opacity .2s,transform .2s,visibility .2s}.nav-menu-group:hover .nav-mega,.nav-menu-group:focus-within .nav-mega{opacity:1;visibility:visible;transform:translate(-50%,0)}.nav-mega strong{display:block;margin-bottom:8px;color:#263946;font-size:.82rem}.nav-mega a{display:block;padding:7px 8px;border-radius:6px;color:#657684;font-size:.78rem}.nav-mega a:hover{background:#fff1ef;color:#d32f2f}.mobile-nav-panel a:first-child{color:#d32f2f;font-weight:700}
.product-mega{width:min(920px,calc(100vw - 40px));grid-template-columns:repeat(5,minmax(0,1fr));gap:0;padding:22px 18px;background:linear-gradient(135deg,#fff 0%,#fffafa 100%);box-shadow:0 22px 55px #102b3c2b}.product-mega>div{min-height:112px;padding:4px 15px;border-left:1px solid #edf1f3}.product-mega>div:first-child{border-left:0}.product-mega strong{display:flex;align-items:center;gap:8px;margin-bottom:12px;color:#1d3442;font-size:.86rem;white-space:nowrap}.product-mega strong::before{content:'◆';color:#d32f2f;font-size:.5rem}.product-mega a{padding:9px 8px;font-size:.8rem;white-space:nowrap}.product-mega a:hover{background:#fff0ee;color:#d32f2f;box-shadow:inset 3px 0 #d32f2f}.product-mega::before{content:'PRODUCT CENTER';position:absolute;left:24px;top:-10px;padding:0 8px;background:#fffafa;color:#d32f2f;font:700 .6rem/1 ui-monospace,monospace;letter-spacing:.15em}
@media(max-width:1100px){.product-mega{width:min(760px,calc(100vw - 28px));grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.product-mega>div{border-left:0;padding:8px 12px}.product-mega>div:nth-child(n+4){border-top:1px solid #edf1f3}}
@media(max-width:700px){.product-mega{position:static;width:auto;display:block;transform:none!important;box-shadow:none;border:0;border-radius:0;padding:8px 0;background:transparent}.product-mega::before{display:none}.product-mega>div{min-height:auto;padding:4px 0;border:0!important}.product-mega strong{margin-bottom:4px}.product-mega a{padding:7px 10px}}
.nav-mega:not(.product-mega){width:520px;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;padding:22px 18px;border:1px solid #d32f2f2b;border-radius:16px;background:linear-gradient(135deg,#fff 0%,#fffafa 100%);box-shadow:0 22px 55px #102b3c2b}.nav-mega:not(.product-mega) a{min-height:92px;padding:10px 15px;border-left:1px solid #edf1f3;border-radius:0;background:transparent}.nav-mega:not(.product-mega) a:first-child{border-left:0}.nav-mega:not(.product-mega) a:before{content:'◆';display:inline-block;margin-right:8px;color:#d32f2f;font-size:.48rem}.nav-mega:not(.product-mega) a:hover{background:#fff0ee;color:#d32f2f;box-shadow:none}.nav-mega:not(.product-mega) strong{display:inline;color:#1d3442;font-size:.84rem}.nav-mega:not(.product-mega) span{display:block;margin:8px 0 0 16px;color:#768692;font-size:.72rem;line-height:1.55}
@media(max-width:700px){.nav-mega:not(.product-mega){position:static;width:auto;display:block;box-shadow:none;border:0;border-radius:0;padding:8px 0;background:transparent}.nav-mega:not(.product-mega) a{min-height:auto;padding:7px 10px;border:0}.nav-mega:not(.product-mega) span{margin-top:4px}}
.nav-mega a{transition:background .2s,color .2s,box-shadow .2s,transform .2s}.nav-mega a:hover,.nav-mega a:focus-visible{background:#fff0ee!important;color:#d32f2f!important;box-shadow:inset 3px 0 #d32f2f!important}
.nav-mega a:hover strong,.nav-mega a:focus-visible strong{color:#d32f2f!important}
 .brand>span:last-child{display:flex;flex-direction:column;line-height:1.15}.brand b{font-size:1.2rem}.brand small{margin-top:3px;color:#8a98a2;font-size:.52rem;font-weight:700;letter-spacing:.16em}
/* Prevent a flash of the legacy header while the shared navigation mounts. */
.site-nav{min-height:80px;position:fixed;left:0;right:0;top:0;visibility:hidden}.site-nav.is-ready{visibility:visible}.site-nav~main .page-hero{margin-top:80px}html:not(.nav-ready) body{visibility:hidden}