:root{--ink:#0b1220;--ink2:#17243a;--muted:#5b6b7d;--line:#dbe5ee;--paper:#f6f9fc;--white:#fff;--teal:#13b8a6;--blue:#2f6df6;--amber:#f5a524;--rose:#d94b64;--shadow:0 18px 55px rgba(7,17,31,.12)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font-family:"Microsoft YaHei","PingFang SC","Segoe UI",Arial,sans-serif;line-height:1.72}img{max-width:100%;display:block}a{color:inherit;text-decoration:none}.site-header{position:fixed;z-index:30;inset:0 0 auto;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px clamp(18px,4vw,56px);color:#fff;background:rgba(8,15,28,.72);border-bottom:1px solid rgba(255,255,255,.12);backdrop-filter:blur(18px)}.site-header.is-scrolled{background:rgba(8,15,28,.94)}.brand{display:inline-flex;align-items:center;gap:12px;min-width:170px}.brand-mark{display:grid;place-items:center;width:42px;height:42px;border:1px solid rgba(255,255,255,.42);border-radius:8px;background:linear-gradient(145deg,var(--teal),var(--blue));font-weight:900}.brand strong,.brand small{display:block}.brand small{color:rgba(255,255,255,.72);font-size:12px}.site-nav{display:flex;align-items:center;gap:clamp(10px,1.8vw,24px);font-size:14px;white-space:nowrap}.site-nav a{color:rgba(255,255,255,.78)}.site-nav a:hover,.site-nav a.active{color:#fff}.nav-toggle{display:none;width:44px;height:44px;padding:10px;border:1px solid rgba(255,255,255,.3);border-radius:8px;background:transparent}.nav-toggle span{display:block;height:2px;margin:5px 0;background:#fff}.page-hero{position:relative;min-height:720px;display:grid;align-items:center;overflow:hidden;color:#fff;background:#091120}.page-hero:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,12,24,.94),rgba(7,12,24,.72) 50%,rgba(7,12,24,.28)),linear-gradient(0deg,rgba(9,17,32,.96),transparent 44%)}.page-hero-bg{position:absolute;inset:0}.page-hero-bg img{width:100%;height:100%;object-fit:cover}.page-hero-content{position:relative;z-index:1;width:min(900px,calc(100% - 36px));margin-left:clamp(18px,8vw,112px);padding-top:128px;padding-bottom:92px}.breadcrumbs{display:flex;gap:8px;align-items:center;margin-bottom:22px;color:rgba(255,255,255,.7);font-size:14px}.breadcrumbs a{color:#fff}.eyebrow{margin:0 0 14px;color:var(--teal);font-weight:800;font-size:14px}.page-hero h1{margin:0;font-size:clamp(44px,7.5vw,92px);line-height:1;font-weight:900}.page-hero p{max-width:780px;font-size:clamp(18px,2vw,24px);color:rgba(255,255,255,.84)}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:11px 18px;border-radius:8px;border:1px solid transparent;font-weight:800}.btn.primary{background:var(--teal);color:#06111e}.btn.secondary{color:#fff;border-color:rgba(255,255,255,.34);background:rgba(255,255,255,.08)}.btn.full{width:100%;margin-top:20px}.home-quick{display:grid;grid-template-columns:1fr 1fr 1fr;gap:1px;margin:-70px clamp(18px,5vw,72px) 0;position:relative;z-index:5;background:rgba(255,255,255,.22);border:1px solid rgba(255,255,255,.24);border-radius:8px;overflow:hidden;box-shadow:var(--shadow)}.home-quick div{background:#fff;padding:24px}.home-quick strong{font-size:18px}.home-quick p{margin:8px 0 0;color:var(--muted)}.section{padding:clamp(62px,8vw,108px) clamp(18px,5vw,72px)}.white{background:#fff}.dark{color:#fff;background:linear-gradient(135deg,rgba(11,18,32,.96),rgba(21,48,74,.94)),url("assets/hero-network.png") center/cover}.dark .section-head p:not(.eyebrow),.dark .info-card p,.dark .geo-summary{color:rgba(255,255,255,.74)}.section-head{max-width:920px;margin-bottom:34px}.section-head h2,.contact-block h2,.cta-band h2{margin:0;font-size:clamp(30px,4vw,52px);line-height:1.18}.section-head p:not(.eyebrow),.section-copy{margin:14px 0 26px;color:var(--muted);font-size:18px;max-width:960px}.inner{padding:0;margin-bottom:34px}.inner .section-head h2{font-size:clamp(26px,3vw,38px)}.prose{display:grid;gap:20px;max-width:980px;color:var(--ink2);font-size:18px}.service-grid,.card-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.info-card,.service-card,.contact-card,.news-list article,.side-panel,.case-list article{padding:24px;border:1px solid var(--line);border-radius:8px;background:#fff;box-shadow:0 12px 32px rgba(7,17,31,.06)}.dark .info-card{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.16);box-shadow:none}.info-card span,.service-code,.case-list span{color:var(--blue);font-size:14px;font-weight:900}.dark .info-card span{color:var(--teal)}.info-card h3,.service-card h3,.contact-card h3,.news-list h3,.timeline h3,.case-list h3,.two-col h3{margin:10px 0;font-size:22px;line-height:1.28}.info-card p,.service-card p,.service-card li,.contact-card li,.news-list p,.timeline p,.faq-list p,.case-list p,.two-col p,.evidence-list p,.contact-block p{color:var(--muted)}.service-card{min-height:420px;display:flex;flex-direction:column}.check-list{padding-left:0;margin:16px 0;list-style:none}.check-list li{position:relative;padding-left:24px;margin-top:8px}.check-list li:before{content:"";position:absolute;left:0;top:.75em;width:9px;height:9px;border-radius:50%;background:var(--teal)}.text-link{display:inline-flex;margin-top:auto;color:var(--blue);font-weight:900}.service-detail{display:grid;grid-template-columns:300px 1fr;gap:28px;align-items:start}.side-panel{position:sticky;top:96px}.side-panel strong{font-size:22px}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:22px}.evidence-list,.geo-summary{padding:28px;border:1px solid var(--line);border-radius:8px;background:#fff;font-size:18px}.dark .geo-summary{border-color:rgba(255,255,255,.18);background:rgba(255,255,255,.08)}.timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;margin:0;padding:0;list-style:none;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.timeline li{min-height:230px;padding:28px;border-right:1px solid var(--line)}.timeline li:last-child{border-right:0}.timeline span{color:var(--amber);font-weight:900}.faq-list{max-width:980px}.faq-list details{border-top:1px solid var(--line);background:#fff}.faq-list details:last-child{border-bottom:1px solid var(--line)}.faq-list summary{cursor:pointer;padding:22px 0;font-size:20px;font-weight:900}.faq-list p{margin:0;padding:0 0 24px}.news-list,.case-list{display:grid;gap:18px}.news-list time{color:var(--teal);font-weight:900}.contact-block{display:grid;grid-template-columns:1.2fr .8fr;gap:clamp(28px,5vw,64px);align-items:center}.cta-band{display:flex;align-items:center;justify-content:space-between;gap:28px;color:#fff;background:linear-gradient(120deg,#0b1220,#15304a 55%,#173f45)}.cta-band p{max-width:820px;color:rgba(255,255,255,.78);font-size:18px}.site-footer{display:grid;grid-template-columns:1fr 1.4fr;gap:24px;padding:34px clamp(18px,5vw,72px);color:rgba(255,255,255,.76);background:#07111f}.site-footer strong{color:#fff}.site-footer p{margin:6px 0 0}.footer-links{display:grid;gap:12px}.footer-links nav{display:flex;flex-wrap:wrap;gap:12px 18px;justify-content:flex-end}@media (max-width:900px){.site-nav{position:absolute;top:70px;left:12px;right:12px;display:none;white-space:normal;padding:16px;border:1px solid rgba(255,255,255,.18);border-radius:8px;background:rgba(8,15,28,.98)}.site-nav.is-open{display:grid;grid-template-columns:repeat(3,1fr)}.nav-toggle{display:block}.service-grid,.card-grid,.timeline{grid-template-columns:repeat(2,minmax(0,1fr))}.timeline li:nth-child(2){border-right:0}.service-detail{grid-template-columns:1fr}.side-panel{position:static}.home-quick{grid-template-columns:1fr}.two-col{grid-template-columns:1fr}}@media (max-width:760px){.site-header{padding:12px 18px}.site-nav.is-open{grid-template-columns:1fr}.page-hero{min-height:760px;align-items:end}.page-hero:after{background:linear-gradient(0deg,rgba(7,12,24,.96) 12%,rgba(7,12,24,.58))}.page-hero-content{width:calc(100% - 36px);margin:0 18px 44px}.service-grid,.card-grid,.timeline,.contact-block,.site-footer{grid-template-columns:1fr}.timeline li,.timeline li:nth-child(2){min-height:auto;border-right:0;border-bottom:1px solid var(--line)}.timeline li:last-child{border-bottom:0}.service-card{min-height:auto}.footer-links nav{justify-content:flex-start}.cta-band{display:grid}.home-quick{margin:0}}

.feature-matrix{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.feature-matrix article{padding:24px;border:1px solid var(--line);border-radius:8px;background:#fff;box-shadow:0 12px 32px rgba(7,17,31,.06)}.feature-matrix h3{margin:0 0 10px;font-size:22px;line-height:1.28}.feature-matrix p{margin:0;color:var(--muted)}.dark .feature-matrix article{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.16);box-shadow:none}.dark .feature-matrix p{color:rgba(255,255,255,.74)}@media (max-width:1180px){.feature-matrix{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:760px){.feature-matrix{grid-template-columns:1fr}}
.nav-item{position:relative}.has-submenu>a{display:inline-flex;align-items:center;gap:6px}.has-submenu>a:after{content:"";width:6px;height:6px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;transform:rotate(45deg);margin-top:-3px}.submenu{position:absolute;top:calc(100% + 16px);left:50%;min-width:220px;display:grid;gap:4px;padding:10px;border:1px solid rgba(255,255,255,.14);border-radius:8px;background:rgba(8,15,28,.98);box-shadow:0 18px 50px rgba(0,0,0,.24);opacity:0;visibility:hidden;transform:translate(-50%,-6px);transition:opacity .18s ease,transform .18s ease,visibility .18s ease}.submenu:before{content:"";position:absolute;left:0;right:0;top:-18px;height:18px}.submenu-link{display:block;padding:10px 12px;border-radius:6px;color:rgba(255,255,255,.78);line-height:1.35}.submenu-link:hover,.submenu-link.active{color:#fff;background:rgba(255,255,255,.1)}.has-submenu:hover .submenu,.has-submenu:focus-within .submenu{opacity:1;visibility:visible;transform:translate(-50%,0)}@media (max-width:900px){.nav-item{display:grid}.has-submenu>a:after{display:none}.submenu{position:static;display:grid;min-width:0;margin:6px 0 4px 14px;padding:4px 0 4px 12px;border:0;border-left:1px solid rgba(255,255,255,.2);border-radius:0;background:transparent;box-shadow:none;opacity:1;visibility:visible;transform:none}.submenu:before{display:none}.submenu-link{padding:7px 0;background:transparent!important}}

.footer-contact{margin-top:12px;color:rgba(255,255,255,.82);line-height:1.9}.footer-contact a{color:#fff}.quick-contact{position:fixed;right:18px;top:50%;z-index:40;display:grid;gap:8px;width:190px;padding:14px;border:1px solid rgba(255,255,255,.18);border-radius:8px;background:rgba(8,15,28,.94);box-shadow:0 18px 50px rgba(0,0,0,.24);color:#fff;transform:translateY(-50%);backdrop-filter:blur(14px)}.quick-contact strong{font-size:15px}.quick-contact a,.quick-contact span{font-size:13px;color:rgba(255,255,255,.82)}.quick-phone{font-size:18px!important;font-weight:900!important;color:var(--teal)!important}.quick-more{display:inline-flex;justify-content:center;margin-top:4px;padding:8px 10px;border-radius:6px;background:rgba(19,184,166,.18);color:#fff!important}.btn.outline{color:var(--ink);border-color:var(--line);background:#fff}@media (max-width:760px){body{padding-bottom:76px}.quick-contact{top:auto;right:0;left:0;bottom:0;width:auto;display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:0;padding:0;border-radius:0;border-left:0;border-right:0;transform:none}.quick-contact strong,.quick-contact span,.quick-contact>a:not(.quick-phone):not(.quick-more){display:none}.quick-phone,.quick-more{display:flex!important;align-items:center;justify-content:center;min-height:58px;margin:0!important;border-radius:0!important;font-size:16px!important}.quick-phone{background:var(--teal);color:#06111e!important}.quick-more{background:#0b1220;color:#fff!important}}

.footer-bottom{grid-column:1/-1;display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 22px;padding-top:18px;margin-top:6px;border-top:1px solid rgba(255,255,255,.12);color:rgba(255,255,255,.66);font-size:13px}.footer-bottom a{color:rgba(255,255,255,.88)}.footer-bottom a:hover{color:#fff}@media (max-width:760px){.footer-bottom{display:grid;justify-content:start}}