:root{--blue:#5db4f5;--blue-deep:#237dca;--ink:#17233d;--muted:#6f7c92;--orange:#ff4b22;--line:#e8edf4;--soft:#f5f9fd}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#fff;font:16px/1.7 system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}.site-header{position:absolute;z-index:10;top:0;left:50%;display:flex;width:min(1180px,calc(100% - 40px));height:84px;align-items:center;justify-content:space-between;transform:translateX(-50%);color:#fff}.brand{font-size:24px;font-weight:800;letter-spacing:.02em}.site-nav{display:flex;align-items:center;gap:30px}.site-nav>a{font-weight:600}.nav-login,.nav-register{padding:7px 19px;border:1px solid rgba(255,255,255,.72);border-radius:999px}.nav-register{border-color:#fff;background:#fff;color:var(--blue-deep)}.nav-toggle{display:none;width:42px;height:42px;padding:8px;border:0;background:transparent}.nav-toggle span{display:block;height:2px;margin:6px 0;background:#fff}.hero{display:grid;min-height:760px;padding:150px max(24px,calc((100vw - 1180px)/2)) 58px;grid-template-columns:1.03fr .97fr;align-items:center;overflow:hidden;color:#fff;background:linear-gradient(130deg,#69c0fb 0%,#58adf3 52%,#5cb2f4 100%)}.hero-copy{position:relative;z-index:2}.eyebrow{display:block;margin-bottom:14px;font-size:17px;font-weight:800;letter-spacing:.28em}.hero h1{max-width:690px;margin:0;font-size:clamp(44px,5vw,70px);line-height:1.23;letter-spacing:-.035em}.hero p{max-width:650px;margin:27px 0 34px;color:rgba(255,255,255,.9);font-size:19px}.hero-actions{display:flex;align-items:center;gap:28px}.primary-button{display:inline-flex;min-height:58px;padding:0 38px;align-items:center;justify-content:center;border-radius:999px;background:var(--orange);color:#fff;font-size:17px;font-weight:800;box-shadow:0 14px 30px rgba(205,50,21,.2)}.text-button{font-weight:700}.hero-art{align-self:end}.hero-art img{display:block;width:min(580px,110%);max-height:650px;object-fit:contain;object-position:center bottom;filter:drop-shadow(0 24px 25px rgba(38,87,168,.18))}.section{width:min(1180px,calc(100% - 40px));margin:0 auto;padding:104px 0}.section-heading{text-align:center}.section-heading span,.eyebrow.blue{color:var(--blue-deep);font-size:14px;font-weight:800;letter-spacing:.24em}.section h2,.cta h2{margin:8px 0 12px;font-size:clamp(32px,4vw,48px);line-height:1.25}.section-heading p,.capability>div>p{color:var(--muted)}.channel-grid{display:grid;margin-top:52px;grid-template-columns:repeat(4,1fr);gap:20px}.channel-grid article{padding:34px 24px;border:1px solid var(--line);border-radius:18px;text-align:center;box-shadow:0 12px 36px rgba(40,76,120,.06)}.channel-grid img{width:84px;height:72px;object-fit:contain}.channel-grid h3{margin:17px 0 5px}.channel-grid p{margin:0;color:var(--muted);font-size:14px}.capability{display:grid;grid-template-columns:.9fr 1.1fr;gap:100px;align-items:center}.outline-button{display:inline-flex;margin-top:18px;padding:12px 26px;border:1px solid var(--blue-deep);border-radius:999px;color:var(--blue-deep);font-weight:800}.capability-list{display:grid;gap:16px}.capability-list article{display:flex;gap:22px;padding:24px;border-radius:16px;background:var(--soft)}.capability-list strong{color:var(--blue-deep);font-size:25px}.capability-list h3,.capability-list p{margin:0}.capability-list p{color:var(--muted)}.cta{display:flex;width:min(1180px,calc(100% - 40px));margin:20px auto 80px;padding:55px 62px;align-items:center;justify-content:space-between;gap:30px;border-radius:26px;color:#fff;background:linear-gradient(120deg,#287fc9,#62baf6)}.cta span{font-weight:800;letter-spacing:.2em}.cta h2{max-width:680px;margin-bottom:0}.cta>div:last-child{display:flex;align-items:center;gap:20px;white-space:nowrap}.support-link{font-weight:700}footer{display:flex;min-height:90px;padding:20px max(20px,calc((100vw - 1180px)/2));align-items:center;justify-content:space-between;gap:20px;color:var(--muted);border-top:1px solid var(--line);font-size:14px}footer>a:first-child{color:var(--ink);font-size:18px;font-weight:800}
@media(max-width:900px){.site-nav{display:none;position:absolute;top:72px;right:0;left:0;padding:22px;border-radius:14px;background:#fff;color:var(--ink);box-shadow:0 16px 40px rgba(23,35,61,.18);flex-direction:column;align-items:stretch;gap:14px}.site-nav.open{display:flex}.nav-login,.nav-register{text-align:center;border-color:var(--line)}.nav-register{background:var(--blue-deep);color:#fff}.nav-toggle{display:block}.hero{min-height:720px;padding-top:135px;grid-template-columns:1fr;text-align:center}.hero-copy{display:flex;flex-direction:column;align-items:center}.hero-art img{width:min(480px,90vw);margin:20px auto 0}.channel-grid{grid-template-columns:repeat(2,1fr)}.capability{grid-template-columns:1fr;gap:42px}.cta{padding:42px;flex-direction:column;text-align:center}.cta>div:last-child{flex-wrap:wrap;justify-content:center}}
@media(max-width:600px){.site-header{height:74px}.brand{font-size:21px}.hero{min-height:1012px;padding:132px 20px 0;align-content:start}.eyebrow{font-size:14px}.hero h1{font-size:40px;line-height:1.38}.hero p{margin:24px 0 28px;font-size:17px}.hero-actions{gap:18px;flex-direction:column}.primary-button{min-height:55px;padding:0 36px}.hero-art{margin-top:auto}.hero-art img{width:540px;max-width:110vw;max-height:440px}.section{padding:72px 0}.channel-grid{grid-template-columns:1fr 1fr;gap:12px;margin-top:34px}.channel-grid article{padding:24px 12px}.channel-grid img{width:62px;height:54px}.channel-grid p{display:none}.capability-list article{padding:20px;gap:15px}.cta{margin-bottom:45px;padding:36px 20px;border-radius:20px}.cta>div:last-child{flex-direction:column}footer{padding:28px 20px;flex-direction:column;text-align:center}}