:root{--bg:#f3f6fb;--surface:#fff;--soft:#edf3fb;--text:#172033;--muted:#657087;--line:#dfe7f2;--blue:#1769e8}
*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at 80% -10%,rgba(37,111,224,.18),transparent 34rem),var(--bg);color:var(--text);font:16px/1.72 -apple-system,BlinkMacSystemFont,"SF Pro Text","PingFang SC","Microsoft YaHei",Arial,sans-serif}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}.wrap{width:min(1120px,calc(100% - 32px));margin:auto}.nav{display:flex;align-items:center;gap:18px;padding:20px 0}.brand{display:flex;align-items:center;gap:12px;margin-right:auto;color:var(--text);font-weight:800}.brand img{width:42px;height:42px;border-radius:10px}.navlinks{display:flex;gap:18px;font-size:14px}.language-switch{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:13px}.language-switch select{padding:7px 9px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--text);font:inherit}.hero{display:grid;grid-template-columns:1.08fr .92fr;gap:60px;align-items:center;padding:72px 0 86px}.eyebrow,.badge{display:inline-flex;padding:7px 12px;border-radius:999px;background:var(--soft);color:var(--blue);font-size:13px;font-weight:800}.hero h1{margin:18px 0 16px;font-size:clamp(44px,7vw,76px);line-height:1.05;letter-spacing:-.05em}.hero .lead{max-width:650px;color:var(--muted);font-size:20px}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.button{display:inline-flex;align-items:center;justify-content:center;padding:12px 20px;border:0;border-radius:14px;background:var(--blue);color:#fff;font:inherit;font-weight:800;box-shadow:0 10px 28px rgba(23,105,232,.25);text-decoration:none}.button:hover{transform:translateY(-1px);text-decoration:none}.button.secondary{background:var(--surface);color:var(--text);border:1px solid var(--line);box-shadow:none}.button.disabled{background:var(--soft);color:var(--muted);border:1px solid var(--line);box-shadow:none;cursor:not-allowed}.hero-art{position:relative;min-height:390px}.app-icon{position:absolute;z-index:2;width:180px;height:180px;right:10%;top:4%;border-radius:40px;box-shadow:0 28px 70px rgba(13,64,134,.3)}.section{padding:74px 0}.section h2{margin:0 0 12px;font-size:clamp(34px,5vw,52px);line-height:1.14}.section-intro{max-width:720px;margin:0 0 34px;color:var(--muted);font-size:18px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{padding:26px;border:1px solid var(--line);border-radius:22px;background:var(--surface);box-shadow:0 10px 35px rgba(36,67,112,.07)}.card h3{margin:12px 0 8px;font-size:20px}.card p{margin:0;color:var(--muted)}.feature-icon{display:grid;width:46px;height:46px;place-items:center;border-radius:14px;background:var(--soft);color:var(--blue);font-size:22px}.privacy-panel{display:grid;grid-template-columns:1fr 1fr;gap:28px;padding:36px;border-radius:28px;background:linear-gradient(135deg,var(--surface),var(--soft));border:1px solid var(--line)}.privacy-panel ul{margin:0;padding-left:22px}.privacy-panel li+li{margin-top:9px}.contact-section{padding:25px 0}.contact-list{display:flex;flex-direction:column;gap:12px;margin-top:18px}.contact-item{display:flex;align-items:center;gap:12px}.contact-label{min-width:auto;color:inherit;font-size:inherit}.contact-label::after{content:"："}.contact-value{min-width:240px;overflow-wrap:anywhere;font-weight:400;margin-right:0}.contact-item a{color:var(--blue);font-weight:400}.copy-button{padding:6px 14px;border:1px solid var(--blue);border-radius:16px;background:var(--surface);color:var(--blue);cursor:pointer;font:inherit}.copy-button:hover{background:var(--soft)}.footer{padding:35px 0 50px;border-top:1px solid var(--line);color:var(--muted);font-size:14px}.footer-links{display:flex;flex-wrap:wrap;gap:18px;margin-bottom:10px}.lang-note{font-size:13px;color:var(--muted)}
@media(max-width:900px){.hero{grid-template-columns:1fr;padding-top:42px}.hero-art{min-height:280px}.grid{grid-template-columns:1fr 1fr}.privacy-panel{grid-template-columns:1fr}}
@media(max-width:650px){.wrap{width:min(100% - 22px,1120px)}.nav{align-items:flex-start;flex-wrap:wrap}.navlinks{order:3;width:100%;justify-content:center;font-size:12px}.language-switch{margin-left:auto}.hero{gap:20px}.hero h1{font-size:50px}.app-icon{width:140px;height:140px}.grid{grid-template-columns:1fr}.contact-item{align-items:flex-start}.contact-value{min-width:0;flex:1}.card,.privacy-panel{padding:22px}.section{padding:52px 0}.contact-section{padding:0}}
 .contact-section .card{padding:30px}