:root{--blue:#4D8FF7;--deep:#253B73;--cyan:#54D2F3;--text:#222;--muted:#5B6A82;--line:rgba(77,143,247,.12);--shadow:0 16px 40px rgba(37,59,115,.10)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--text);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.75}a{text-decoration:none;color:inherit}img{display:block;max-width:100%;height:auto;object-fit:contain}.container{width:min(1180px,calc(100% - 36px));margin:auto}.site-header{position:sticky;top:0;z-index:9999;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);box-shadow:0 8px 24px rgba(37,59,115,.08)}.header-inner{height:76px;display:flex;align-items:center;gap:24px}.brand img{width:146px;max-height:48px}.desktop-nav{display:flex;align-items:center;justify-content:center;gap:4px;flex:1}.desktop-nav a{padding:10px 12px;border-radius:999px;color:var(--deep);font-size:15px;white-space:nowrap}.desktop-nav a:hover,.desktop-nav a.active{background:linear-gradient(135deg,rgba(77,143,247,.10),rgba(84,210,243,.12));color:var(--blue);box-shadow:inset 0 -2px 0 var(--cyan)}.main-btn{position:relative;overflow:hidden;isolation:isolate;display:inline-flex;align-items:center;justify-content:center;padding:11px 22px;background:linear-gradient(135deg,#4D8FF7 0%,#5EAEF5 48%,#54D2F3 100%);color:#fff;border-radius:999px;box-shadow:0 12px 26px rgba(77,143,247,.22);font-weight:700;transition:.2s}.main-btn:after{content:"";position:absolute;inset:0;border-radius:inherit;border:1px solid rgba(255,255,255,.56);box-shadow:0 0 12px rgba(77,143,247,.20),0 0 18px rgba(84,210,243,.24);pointer-events:none}.main-btn:hover{transform:translateY(-1px);box-shadow:0 16px 36px rgba(77,143,247,.28)}.menu-toggle{display:none;background:none;border:0;padding:8px}.menu-toggle span{display:block;width:24px;height:2px;margin:5px;background:var(--deep)}.drawer-mask{position:fixed;inset:0;background:rgba(12,24,48,.48);z-index:10000;opacity:0;visibility:hidden;transition:.25s}.drawer-mask.show{opacity:1;visibility:visible}.mobile-drawer{position:fixed;left:0;top:0;bottom:0;width:min(84vw,320px);background:#fff;z-index:10001;transform:translateX(-105%);transition:.28s;box-shadow:20px 0 60px rgba(20,40,80,.2)}.mobile-drawer.open{transform:none}.drawer-head{height:76px;display:flex;align-items:center;justify-content:space-between;padding:14px 20px;border-bottom:1px solid var(--line)}.drawer-head img{width:138px}.drawer-close{border:0;background:#EEF4FF;color:var(--deep);width:38px;height:38px;border-radius:50%;font-size:26px}.mobile-drawer nav{padding:12px}.mobile-drawer nav a{display:block;padding:13px 14px;border-radius:12px;color:var(--deep)}.mobile-drawer nav a:hover{background:#EEF9FF;color:var(--blue)}body.drawer-open{overflow:hidden}.hero-section{padding:72px 0 34px;background:radial-gradient(circle at 15% 20%,rgba(77,143,247,.12) 0%,rgba(77,143,247,0) 30%),radial-gradient(circle at 88% 18%,rgba(84,210,243,.16) 0%,rgba(84,210,243,0) 28%),linear-gradient(135deg,#fff 0%,#F7FAFF 52%,#EEF4FF 100%)}.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;align-items:center;gap:48px}.section-kicker,.tag,.label,.num,.badge{color:var(--blue);font-weight:700;letter-spacing:.05em}.hero-section h1{font-size:clamp(36px,5vw,62px);line-height:1.15;margin:14px 0 20px;color:var(--deep)}.hero-section p{color:var(--muted);font-size:17px}.hero-actions{display:flex;gap:18px;align-items:center;margin-top:28px}.text-link{color:var(--blue);font-weight:700}.text-link:after{content:" →"}.hero-visual{background:#fff;border:1px solid var(--line);border-radius:32px;padding:28px;box-shadow:var(--shadow);position:relative}.hero-visual:before{content:"";position:absolute;inset:14px;border-radius:24px;border:1px dashed rgba(84,210,243,.4)}.hero-visual img{position:relative;max-height:420px;margin:auto}.service-mini{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:34px}.service-mini .card{padding:18px}.card,.zone-card,.info-card{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:20px}.card h3,.zone-card h3,.info-card h3{color:var(--deep);margin:8px 0}.section{padding:74px 0}.section.alt{background:#F7FAFF}.section-head{max-width:760px;margin-bottom:30px}.section-title,h1,h2,h3{color:var(--deep)}.section-title{font-size:clamp(28px,4vw,42px);line-height:1.25;margin:8px 0 12px}.section-head p,.muted{color:var(--muted)}.pill-nav{display:flex;gap:12px;overflow:auto;padding:10px 2px 18px}.pill-nav a{min-width:176px;background:rgba(255,255,255,.86);border:1px solid rgba(77,143,247,.14);border-radius:999px;padding:12px 18px}.pill-nav small{display:block;color:var(--muted)}.intro-strip{padding:24px 28px;border-radius:22px;background:linear-gradient(135deg,#fff,#EEF9FF);border:1px solid var(--line);color:var(--muted)}.info-board{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.info-card{padding:24px}.feature-row{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:48px;margin:58px 0}.feature-row.reverse .feature-copy{order:1}.feature-row.reverse .feature-media{order:2}.feature-media{background:#fff;border:1px solid var(--line);border-radius:26px;padding:20px;box-shadow:var(--shadow)}.feature-media img{max-height:330px;margin:auto}.feature-copy ul{padding-left:20px;color:var(--muted)}.zone-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.zone-card{padding:18px}.zone-card img{height:160px;width:100%;margin-bottom:15px}.zone-card p{color:var(--muted)}.app-banner{display:grid;grid-template-columns:.8fr 1.2fr;gap:44px;align-items:center;padding:36px;border-radius:28px;background:linear-gradient(135deg,#fff,#EEF4FF);border:1px solid var(--line)}.app-banner img{max-height:350px;margin:auto}.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.check-grid span{background:#fff;border:1px solid var(--line);padding:12px 14px;border-radius:14px;color:var(--deep)}.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.faq-item{padding:22px;border-radius:18px;background:#fff;border:1px solid var(--line)}.faq-item h3{margin-top:0}.page-hero{padding:72px 0 46px;background:linear-gradient(135deg,#fff,#F7FAFF,#EEF9FF)}.page-hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}.page-hero h1{font-size:clamp(34px,5vw,54px);margin:10px 0}.page-hero p{color:var(--muted);font-size:17px}.page-hero img{max-height:340px;margin:auto;background:#fff;border-radius:26px;padding:18px;border:1px solid var(--line);box-shadow:var(--shadow)}.content-layout{display:grid;grid-template-columns:1.4fr .6fr;gap:32px}.article-card{padding:30px;border:1px solid var(--line);border-radius:22px;background:#fff}.article-card p,.article-card li{color:var(--muted)}.sidebar-card{padding:24px;border-radius:20px;background:#EEF9FF;height:max-content;position:sticky;top:100px}.sidebar-card a{display:block;padding:9px 0;color:var(--blue)}.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.quote{padding:22px;border-left:3px solid var(--cyan);background:#fff;border-radius:14px;box-shadow:var(--shadow);color:var(--muted)}.site-footer{background:#1B2F5B;color:#EEF6FF;padding-top:54px}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:34px}.footer-brand img{width:150px;filter:brightness(0) invert(1)}.site-footer h3{color:#fff}.site-footer a{display:block;color:#D6E7FF;padding:4px 0}.site-footer p{color:#C6D8F0}.footer-bottom{margin-top:38px;padding:18px;text-align:center;border-top:1px solid rgba(255,255,255,.12);color:#C6D8F0}.legal-note{padding:22px;border-radius:18px;background:#EEF4FF;color:var(--muted);border:1px solid var(--line)}
@media(max-width:980px){.desktop-nav{display:none}.menu-toggle{display:block}.header-inner{justify-content:space-between}.brand{position:absolute;left:50%;transform:translateX(-50%)}.header-btn{padding:9px 15px}.hero-grid,.page-hero-grid,.feature-row,.app-banner,.content-layout{grid-template-columns:1fr}.feature-row.reverse .feature-copy,.feature-row.reverse .feature-media{order:initial}.info-board,.zone-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.sidebar-card{position:static}.hero-section{padding-top:45px}}
@media(max-width:640px){.container{width:min(100% - 24px,1180px)}.header-inner{height:66px}.brand img{width:118px}.header-btn{font-size:13px;padding:8px 12px}.hero-section h1{font-size:38px}.service-mini,.info-board,.zone-grid,.faq-grid,.quote-grid,.check-grid{grid-template-columns:1fr}.hero-grid{gap:28px}.hero-visual{padding:18px}.section{padding:54px 0}.feature-row{gap:24px;margin:38px 0}.page-hero{padding:48px 0 32px}.footer-grid{grid-template-columns:1fr}.pill-nav a{min-width:155px}.app-banner{padding:22px}}