:root{--blue:#2563eb;--blue-dark:#0f2d56;--orange:#f97316;--ink:#14243a;--muted:#64748b;--line:#dfe7f1;--canvas:#f8fafc;--white:#fff;--shadow-sm:0 4px 14px rgba(15,45,86,.06);--shadow-md:0 12px 28px rgba(15,45,86,.1);--shadow-lg:0 22px 50px rgba(15,45,86,.14)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,"Noto Sans SC",system-ui,sans-serif;color:var(--ink);background:var(--canvas);font-size:15px;line-height:1.6}a{color:inherit;text-decoration:none}.container{width:min(1180px,calc(100% - 64px));margin:0 auto}.site-header{position:fixed;z-index:20;top:0;left:0;right:0;height:76px;background:rgba(248,250,252,.88);backdrop-filter:blur(15px);border-bottom:1px solid rgba(148,163,184,.3)}.nav-wrap{height:100%;display:flex;align-items:center;gap:34px}.brand{display:inline-flex;align-items:center;gap:11px;font-size:17px;font-weight:800;letter-spacing:.01em;white-space:nowrap}.brand-mark{width:31px;height:31px;display:grid;place-items:center;border-radius:9px;background:var(--blue);color:#fff}.brand-mark svg{width:18px;height:18px}.desktop-nav{display:flex;align-items:center;gap:25px;margin-left:auto}.desktop-nav a{font-size:13px;color:#516175;transition:color .24s}.desktop-nav a:hover,.desktop-nav a.active{color:var(--blue)}.header-cta{margin-left:2px;white-space:nowrap}.outline-btn,.primary-btn{height:44px;padding:0 19px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:8px;font-size:13px;font-weight:700;transition:transform .24s,box-shadow .24s,background .24s}.outline-btn{border:1px solid #b9c9de;color:#1e4f9c;background:rgba(255,255,255,.45)}.outline-btn:hover{border-color:var(--blue);background:#eef4ff;transform:translateY(-2px);box-shadow:var(--shadow-sm)}.primary-btn{background:var(--orange);color:#fff;box-shadow:0 8px 18px rgba(249,115,22,.22)}.primary-btn:hover{background:#ea650d;transform:translateY(-2px);box-shadow:0 12px 25px rgba(249,115,22,.3)}.outline-btn svg,.primary-btn svg{width:16px;height:16px}.mobile-menu{display:none;border:0;background:none;color:var(--ink);padding:7px}.hero{position:relative;min-height:700px;padding-top:76px;display:grid;place-items:center;overflow:hidden;background:linear-gradient(120deg,#eaf2ff 0%,#f5f8fc 48%,#eef3f9 100%)}.hero-grid{position:absolute;inset:0;opacity:.5;background-image:linear-gradient(rgba(37,99,235,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(37,99,235,.06) 1px,transparent 1px);background-size:72px 72px;mask-image:linear-gradient(to bottom,black,transparent 90%)}.hero-content{position:relative;text-align:center;padding:80px 0 95px}.eyebrow,.section-kicker{font-size:11px;letter-spacing:.16em;font-weight:800;color:var(--blue);margin:0 0 17px}.eyebrow{display:flex;justify-content:center;align-items:center;gap:9px}.eyebrow span{width:22px;height:2px;background:var(--orange)}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(46px,6.5vw,80px);line-height:1.12;letter-spacing:-.025em;margin-bottom:22px;color:var(--blue-dark)}.hero-content>p{font-size:18px;color:#52657b;line-height:1.9;margin-bottom:34px}.hero-actions{display:flex;justify-content:center;gap:12px}.hero-actions .outline-btn{background:rgba(255,255,255,.68)}.hero-trust{display:flex;justify-content:center;gap:25px;margin-top:53px;color:#687b90;font-size:12px}.hero-trust span{display:inline-flex;align-items:center;gap:7px}.hero-trust svg{width:15px;color:var(--blue)}.scroll-cue{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);font-size:10px;letter-spacing:.12em;color:#8ba0b7;display:flex;align-items:center;gap:9px}.scroll-cue span{width:26px;height:1px;background:#afc0d2}.section{padding:112px 0}.advantages-section{background:var(--canvas)}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:43px}.section-heading h2{font-size:34px;line-height:1.22;letter-spacing:-.02em;margin:0;color:var(--blue-dark)}.section-heading>p{max-width:385px;color:var(--muted);font-size:14px;margin:0 0 3px}.advantage-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.advantage-card{position:relative;min-height:208px;padding:27px 27px 24px;background:#fff;border:1px solid #e7edf5;border-radius:12px;box-shadow:var(--shadow-sm);transition:transform .24s,box-shadow .24s}.advantage-card:hover,.product-card:hover,.scene-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md)}.icon-box{width:44px;height:44px;display:grid;place-items:center;border-radius:10px;background:#edf4ff;color:var(--blue);margin-bottom:22px}.icon-box svg{width:21px}.advantage-card h3,.scene-card h3{font-size:17px;margin-bottom:9px}.advantage-card p,.scene-card p{font-size:13px;color:var(--muted);margin:0;max-width:215px}.card-index{position:absolute;right:23px;bottom:21px;color:#cad5e3;font:700 12px Inter;letter-spacing:.1em}.products-section{background:#fff;border-top:1px solid #edf1f6;border-bottom:1px solid #edf1f6}.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.product-card{position:relative;padding:24px 23px 21px;border:1px solid #e1e9f2;border-radius:12px;background:#fff;box-shadow:var(--shadow-sm);transition:transform .24s,box-shadow .24s}.product-card.featured{border-color:#b5cdfc;box-shadow:0 11px 28px rgba(37,99,235,.12)}.product-card.featured:before{content:"推荐配置";position:absolute;top:-1px;right:17px;padding:3px 9px;border-radius:0 0 6px 6px;background:var(--blue);color:#fff;font-size:10px;font-weight:700}.product-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}.product-tag{padding:4px 9px;border-radius:5px;background:#fff1e9;color:#d75b14;font-size:11px;font-weight:700}.product-code{font-size:10px;color:#a7b6c8;letter-spacing:.08em}.product-card h3{font-size:23px;margin-bottom:5px}.product-desc{font-size:12px;color:#8190a2;margin-bottom:22px}.spec-list{padding:0;margin:0 0 20px;list-style:none;border-top:1px solid #eef2f7}.spec-list li{display:flex;align-items:center;gap:9px;padding:10px 0;border-bottom:1px solid #eef2f7;color:#425871;font-size:12px}.spec-list svg{width:14px;color:#7796c2}.price{display:flex;align-items:baseline;gap:5px;color:var(--blue-dark);margin-bottom:17px}.price span{font:800 29px Inter}.price small{font-size:11px;color:#7c8da1}.product-note{display:flex;align-items:center;gap:7px;padding-top:15px;border-top:1px solid #eef2f7;color:#7e8da0;font-size:11px}.product-note svg{width:14px;color:var(--orange)}.product-disclaimer{display:flex;align-items:center;gap:9px;padding-top:27px;color:#8090a2;font-size:12px}.product-disclaimer>svg{width:15px;color:#97a9bc}.product-disclaimer a{display:inline-flex;align-items:center;gap:5px;color:var(--blue);font-weight:600;margin-left:auto}.product-disclaimer a svg{width:14px}.scenes-section{background:var(--canvas)}.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.scene-card{position:relative;min-height:215px;padding:25px 27px;border:1px solid #e1e9f2;background:#fff;border-radius:12px;box-shadow:var(--shadow-sm);transition:transform .24s,box-shadow .24s;overflow:hidden}.scene-num{position:absolute;right:21px;top:23px;font:700 11px Inter;letter-spacing:.1em;color:#b5c3d3}.scene-icon{width:39px;height:39px;display:grid;place-items:center;border-radius:9px;color:var(--blue);background:#edf4ff;margin-bottom:25px}.scene-icon svg{width:19px}.scene-card h3{margin-bottom:8px}.scene-arrow{position:absolute;right:24px;bottom:24px;width:17px;color:#b1c2d5;transition:color .24s,transform .24s}.scene-card:hover .scene-arrow{color:var(--blue);transform:translate(2px,-2px)}.faq-section{background:#fff}.faq-layout{display:grid;grid-template-columns:34% 1fr;gap:70px}.faq-intro h2{font-size:46px;line-height:1.16;letter-spacing:-.025em;margin:0 0 19px;color:var(--blue-dark)}.faq-intro h2 em{font-style:normal;color:var(--blue)}.faq-intro>p:not(.section-kicker){max-width:245px;font-size:14px;color:var(--muted);margin-bottom:29px}.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--blue);font-size:13px;font-weight:700}.text-link svg{width:15px}.faq-list details{border-top:1px solid #dbe4ee}.faq-list details:last-child{border-bottom:1px solid #dbe4ee}.faq-list summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;padding:21px 4px;font-size:15px;font-weight:600;color:var(--ink)}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary svg{width:17px;color:#8da1b6;transition:transform .24s}.faq-list details[open] summary svg{transform:rotate(45deg);color:var(--blue)}.faq-list details p{margin:0;padding:0 40px 22px 4px;color:var(--muted);font-size:13px}.cta-section{background:var(--blue-dark);color:#fff;padding:63px 0}.cta-wrap{display:flex;align-items:center;justify-content:space-between;gap:30px}.cta-wrap .section-kicker{color:#8bb3ff;margin-bottom:13px}.cta-wrap h2{font-size:30px;letter-spacing:-.02em;margin-bottom:8px}.cta-wrap p:last-child{color:#afc1d8;font-size:14px;margin:0}.cta-wrap .primary-btn{background:var(--orange);min-width:160px}.site-footer{background:#0b1e38;color:#fff;padding:39px 0 23px}.footer-wrap{display:flex;align-items:center;justify-content:space-between;padding-bottom:28px;border-bottom:1px solid rgba(180,204,232,.16)}.footer-brand .brand{font-size:16px}.footer-brand>p{font-size:11px;color:#8296ae;margin:11px 0 0}.footer-brand>p a,.footer-note a{color:#a8c5f7}.footer-wrap .outline-btn{border-color:#435e7d;color:#b5c9e2;background:transparent}.footer-wrap .outline-btn:hover{border-color:#789bc9;background:rgba(255,255,255,.05)}.footer-note{display:flex;align-items:center;gap:8px;padding-top:19px;font-size:11px;color:#71869f}.footer-note svg{width:14px;flex:none;color:#89a4c2}
@media(max-width:960px){.desktop-nav{gap:14px}.desktop-nav a{font-size:12px}.nav-wrap{gap:17px}.product-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:767px){.container{width:min(100% - 40px,560px)}.site-header{height:65px}.nav-wrap{justify-content:space-between}.desktop-nav,.header-cta{display:none}.mobile-menu{display:grid;place-items:center}.desktop-nav.mobile-open{position:absolute;display:flex;top:65px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;padding:10px 20px 16px;background:rgba(248,250,252,.97);backdrop-filter:blur(15px);border-bottom:1px solid #dfe7f1;box-shadow:var(--shadow-md)}.desktop-nav.mobile-open a{padding:11px 0;font-size:13px;border-bottom:1px solid #e7edf5}.desktop-nav.mobile-open a:last-child{border-bottom:0}.hero{min-height:640px;padding-top:65px}.hero-content{padding:65px 0 75px}.eyebrow{font-size:9px}.hero-content h1{font-size:44px}.hero-content>p{font-size:15px;line-height:1.8}.desktop-break{display:none}.hero-actions{flex-direction:column;align-items:stretch;width:min(100%,280px);margin:0 auto}.hero-trust{flex-direction:column;gap:9px;margin-top:38px}.scroll-cue{display:none}.section{padding:76px 0}.section-heading{display:block;margin-bottom:30px}.section-heading h2{font-size:29px;margin-bottom:12px}.section-heading>p{font-size:13px}.advantage-grid,.scene-grid,.product-grid{grid-template-columns:1fr;gap:12px}.advantage-card{min-height:180px}.product-card{padding:22px}.product-disclaimer{align-items:flex-start;flex-wrap:wrap;line-height:1.6}.product-disclaimer a{margin-left:24px}.faq-layout{display:block}.faq-intro{margin-bottom:42px}.faq-intro h2{font-size:40px}.faq-list summary{font-size:14px;padding:19px 3px}.faq-list details p{font-size:12px;padding-bottom:19px}.cta-section{padding:48px 0}.cta-wrap{display:block}.cta-wrap h2{font-size:25px}.cta-wrap .primary-btn{margin-top:24px}.footer-wrap{align-items:flex-start;gap:24px;flex-direction:column}.footer-wrap .outline-btn{height:40px}.footer-note{align-items:flex-start;line-height:1.6}.brand{font-size:16px}}