:root{--blue:#4D8FF7;--deep:#253B73;--cyan:#54D2F3;--text:#222;--muted:#5B6A82;--soft:#8795AA;--line:rgba(77,143,247,.12);--shadow:0 16px 40px rgba(37,59,115,.10);--footer:#1B2F5B}
*{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:1.78}body.drawer-open{overflow:hidden}a{text-decoration:none;color:inherit}img{display:block;max-width:100%;height:auto}.container{width:min(1180px,calc(100% - 32px));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)}.desktop-header{height:76px;display:flex;align-items:center;gap:26px}.brand img{width:146px;max-height:48px;object-fit:contain}.desktop-nav{display:flex;align-items:center;justify-content:center;gap:5px;flex:1;white-space:nowrap}.desktop-nav a{padding:9px 12px;border-radius:999px;color:var(--deep);font-size:14px}.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;display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 22px;overflow:hidden;isolation:isolate;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;white-space:nowrap;transition:.25s}.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)}.mobile-header{display:none;height:68px;align-items:center;justify-content:space-between}.mobile-brand{position:absolute;left:50%;transform:translateX(-50%)}.mobile-brand img{width:112px;max-height:38px;object-fit:contain}.menu-toggle{width:42px;height:42px;border:0;border-radius:12px;background:#F7FAFF;padding:10px;display:grid;align-content:center;gap:5px}.menu-toggle span{height:2px;background:var(--deep);border-radius:10px}.mobile-main-btn{min-height:36px;padding:0 14px;font-size:13px}.drawer-overlay{position:fixed;inset:0;background:rgba(9,18,36,.42);opacity:0;visibility:hidden;transition:.25s;z-index:9998}.drawer-overlay.show{opacity:1;visibility:visible}.mobile-drawer{position:fixed;left:0;top:0;bottom:0;width:84%;max-width:320px;background:#fff;transform:translateX(-105%);transition:.3s;z-index:10000;box-shadow:18px 0 60px rgba(20,40,80,.16);overflow:auto}.mobile-drawer.open{transform:none}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:20px;border-bottom:1px solid var(--line)}.drawer-head img{width:130px;max-height:44px;object-fit:contain}.drawer-close{border:0;background:#EEF4FF;color:var(--deep);font-size:28px;width:38px;height:38px;border-radius:50%}.drawer-nav{padding:14px}.drawer-nav a{display:block;padding:13px 15px;margin:5px 0;border-radius:12px;color:var(--deep)}.drawer-nav a.active,.drawer-nav a:hover{background:#EEF9FF;color:var(--blue)}.drawer-note{margin:14px;padding:15px;border-radius:14px;background:#F7FAFF;color:var(--muted);font-size:13px}.hero-section{padding:76px 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:1.05fr .95fr;align-items:center;gap:46px}.section-kicker,.tag,.label,.num,.badge{color:var(--blue);font-weight:700;letter-spacing:.04em}.hero-copy h1{font-size:clamp(36px,5vw,62px);line-height:1.13;margin:14px 0 22px;color:var(--deep)}.hero-copy p{font-size:17px;color:var(--muted);margin:0 0 26px}.hero-visual{background:rgba(255,255,255,.9);border:1px solid rgba(77,143,247,.18);border-radius:30px;padding:24px;box-shadow:var(--shadow);position:relative;overflow:hidden}.hero-visual:before{content:"";position:absolute;width:180px;height:180px;border-radius:50%;right:-70px;top:-70px;background:linear-gradient(135deg,rgba(77,143,247,.18),rgba(84,210,243,.22))}.hero-visual img,.content-img,.zone-card img,.app-section img{max-width:100%;height:auto;object-fit:contain}.hero-services{grid-column:1/-1;display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:6px}.service-chip,.card,.zone-card,.info-card{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:20px}.service-chip{padding:19px 20px}.service-chip b{display:block;color:var(--deep);font-size:17px}.service-chip span{color:var(--muted);font-size:14px}.section{padding:76px 0}.section.alt{background:#F7FAFF}.section-head{max-width:760px;margin-bottom:34px}.section-head h2,.section-title{font-size:clamp(28px,4vw,42px);line-height:1.25;margin:8px 0 12px;color:var(--deep)}.section-head p{color:var(--muted);margin:0}.pill-nav{display:flex;gap:12px;overflow:auto;padding:8px 0 18px;scrollbar-width:none}.pill-nav::-webkit-scrollbar{display:none}.pill{min-width:185px;background:rgba(255,255,255,.88);border:1px solid rgba(77,143,247,.14);border-radius:999px;padding:13px 18px;transition:.25s}.pill:hover{border-color:var(--cyan);transform:translateY(-2px)}.pill b{display:block;color:var(--deep)}.pill small{color:var(--muted)}.platform-strip{padding:25px 28px;border-radius:22px;background:linear-gradient(135deg,#fff,#EEF9FF);border:1px solid var(--line);color:var(--muted);box-shadow:var(--shadow)}.board-grid,.zone-grid,.feature-grid,.review-grid,.faq-grid{display:grid;gap:18px}.board-grid{grid-template-columns:repeat(4,1fr)}.info-card,.card{padding:24px}.info-card h3,.card h3,.zone-card h3{color:var(--deep);margin:10px 0}.info-card p,.card p,.zone-card p{color:var(--muted);margin:0}.split-row{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;margin:0 0 76px}.split-row.reverse .split-media{order:2}.split-media{border-radius:26px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);padding:24px}.split-copy h2{color:var(--deep);font-size:34px;line-height:1.3;margin:10px 0 16px}.split-copy p{color:var(--muted)}.point-list{display:grid;gap:10px;margin:18px 0}.point-list span{padding:11px 14px;background:#F7FAFF;border-left:3px solid var(--cyan);border-radius:10px;color:#3E516F}.text-link{display:inline-flex;margin-top:12px;color:var(--blue);font-weight:700}.text-link:hover{color:var(--deep)}.zone-grid{grid-template-columns:repeat(4,1fr)}.zone-card{overflow:hidden}.zone-card .image-box{height:170px;padding:16px;background:linear-gradient(135deg,#F7FAFF,#EEF9FF);display:flex;align-items:center;justify-content:center}.zone-card .image-box img{max-height:138px}.zone-card .zone-body{padding:22px}.app-band{display:grid;grid-template-columns:.8fr 1.2fr;align-items:center;gap:42px;padding:38px;border-radius:28px;background:linear-gradient(135deg,#fff 0%,#F3FAFF 55%,#FFFBEF 100%);border:1px solid var(--line);box-shadow:var(--shadow)}.app-image{padding:18px}.app-image img{max-height:360px;margin:auto}.feature-grid{grid-template-columns:repeat(2,1fr);margin-top:20px}.feature-item{padding:14px 16px;background:#fff;border:1px solid var(--line);border-radius:14px;color:var(--muted)}.security-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:26px;align-items:start}.security-intro{position:sticky;top:110px}.security-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.faq-grid{grid-template-columns:repeat(2,1fr)}.faq-item{padding:24px;border-radius:18px;background:#fff;border:1px solid var(--line)}.faq-item h3{color:var(--deep);margin-top:0}.faq-item p{color:var(--muted);margin-bottom:0}.notice{padding:26px;border-radius:22px;background:#EEF4FF;border-left:5px solid var(--blue);color:var(--muted)}.inner-hero{padding:70px 0 44px;background:linear-gradient(135deg,#fff,#F7FAFF 55%,#EEF9FF)}.inner-hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:38px;align-items:center}.inner-hero h1{font-size:clamp(34px,5vw,54px);line-height:1.2;color:var(--deep);margin:12px 0}.inner-hero p{color:var(--muted);font-size:17px}.inner-visual{padding:24px;border-radius:24px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}.inner-visual img{max-height:360px;margin:auto;object-fit:contain}.article-wrap{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;padding:66px 0}.article{min-width:0}.article section{margin-bottom:42px}.article h2{color:var(--deep);font-size:30px;margin-bottom:12px}.article h3{color:var(--deep)}.article p,.article li{color:var(--muted)}.article ul{padding-left:20px}.side-card{position:sticky;top:104px;padding:24px;border-radius:20px;background:#F7FAFF;border:1px solid var(--line)}.side-card h3{color:var(--deep);margin-top:0}.side-card a{display:block;padding:9px 0;color:var(--blue);border-bottom:1px dashed rgba(77,143,247,.18)}.review-grid{grid-template-columns:repeat(3,1fr)}.review{padding:22px;border-radius:18px;background:#fff;border:1px solid var(--line)}.review p{color:var(--muted);margin:0}.review strong{display:block;margin-top:14px;color:var(--deep)}.site-footer{background:var(--footer);color:#EEF6FF;padding:58px 0 22px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:36px}.footer-brand img{width:150px;max-height:52px;object-fit:contain;margin-bottom:16px}.footer-brand p{color:#C9D7EA}.site-footer h3{color:#fff;margin:0 0 14px}.site-footer a{display:block;color:#DCE8F7;padding:5px 0}.site-footer a:hover{color:var(--cyan)}.compliance{margin-top:34px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);color:#C9D7EA}.copyright{padding-top:16px;color:#9FB3D1;font-size:13px}
@media(max-width:980px){.desktop-header{display:none}.mobile-header{display:flex}.hero-grid,.inner-hero-grid,.app-band,.security-grid{grid-template-columns:1fr}.hero-services{grid-template-columns:1fr 1fr 1fr}.board-grid,.zone-grid{grid-template-columns:repeat(2,1fr)}.split-row,.split-row.reverse{grid-template-columns:1fr}.split-row.reverse .split-media{order:0}.article-wrap{grid-template-columns:1fr}.side-card,.security-intro{position:static}.footer-grid{grid-template-columns:1fr 1fr}.review-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.container{width:min(100% - 24px,1180px)}.hero-section{padding-top:48px}.hero-copy h1{font-size:38px}.hero-services{grid-template-columns:1fr}.section{padding:56px 0}.board-grid,.zone-grid,.security-cards,.faq-grid,.feature-grid,.review-grid{grid-template-columns:1fr}.split-row{gap:22px;margin-bottom:54px}.split-copy h2{font-size:28px}.app-band{padding:22px}.footer-grid{grid-template-columns:1fr}.inner-hero{padding-top:48px}.article-wrap{padding:48px 0}.mobile-main-btn{padding:0 12px;font-size:12px}.mobile-brand img{width:100px}}