:root{--bg:#f6f7f9;--surface:#fff;--fg:#101114;--fg-2:#4b5058;--fg-3:#868d98;--line:#e4e6ea;--btn-bg:#2456d6;--btn-bg-hover:#1c46b4;--radius:10px}html[data-theme="dark"]{--bg:#0f1115;--surface:#16181d;--fg:#eceef2;--fg-2:#b0b6c0;--fg-3:#7c838f;--line:#24272e;--btn-bg:#3a68e0;--btn-bg-hover:#4a76ec}*{box-sizing:border-box}body{display:flex;flex-direction:column;min-height:100vh;margin:0;background:var(--bg);color:var(--fg);font:15px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;-webkit-font-smoothing:antialiased}main{flex:1 0 auto}body > header,body > main,body > footer{width:100%}a{color:inherit;text-decoration:none}.wrap{max-width:1040px;margin:0 auto;padding:0 24px}.main{padding-bottom:64px}header{position:sticky;top:0;z-index:10;background:var(--surface);border-bottom:1px solid var(--line)}.bar{display:flex;align-items:center;gap:20px;height:62px}.brand{display:flex;align-items:center;gap:9px;margin-right:auto;font-weight:600;font-size:15.5px}.mark{width:26px;height:26px;border-radius:7px;display:block;flex:none;background:var(--btn-bg)}.mark path{stroke:#fff}.t-btn{padding:5px 11px;border:1px solid var(--line);border-radius:7px;background:none;color:var(--fg-2);font-size:13px;cursor:pointer;transition:color .15s ease,border-color .15s ease}.t-btn:hover{color:var(--fg);border-color:var(--fg-3)}h1{margin:0;font-size:30px;line-height:1.32;font-weight:600;letter-spacing:-.01em}.lead{margin:14px 0 0;font-size:16.5px;color:var(--fg-2);max-width:58ch}.actions{margin:26px 0 0}.btn{display:inline-flex;align-items:center;height:40px;padding:0 18px;border-radius:8px;background:var(--btn-bg);color:#fff;font-size:14.5px;font-weight:500;transition:background-color .15s ease}.btn:hover{background:var(--btn-bg-hover)}.hero{padding:68px 0 60px}.hero h1{font-size:34px}.band{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:44px 0}.band h2{margin:0 0 6px;font-size:15px;font-weight:600}.facts{margin:0}.facts > div{display:grid;grid-template-columns:110px 1fr;gap:20px;padding:15px 0;border-top:1px solid var(--line)}.facts > div:first-child{border-top:0}.facts dt{font-weight:500}.facts dd{margin:0;color:var(--fg-2)}.page-head{padding:46px 0 4px}.product{margin-top:30px}.p-head{display:flex;gap:14px}.p-head .mark{width:40px;height:40px;border-radius:10px}.p-head h2{margin:0;font-size:19px;font-weight:600}.p-head p{margin:4px 0 0;color:var(--fg-2);max-width:62ch}.lines-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(400px,1fr));gap:14px;margin-top:22px}.line{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px}.line h3{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin:0 0 7px;font-size:15px;font-weight:600}.line .count{color:var(--fg-3);font-size:13px;font-weight:400}.line p{margin:0;color:var(--fg-2);font-size:13.5px;line-height:1.7}.more{margin:22px 0 0;color:var(--fg-3);font-size:13.5px}footer{margin-top:56px;background:var(--surface);border-top:1px solid var(--line)}.foot{padding:26px 0;font-size:13.5px;color:var(--fg-3)}@media (max-width:640px){.wrap{padding:0 18px}.bar{height:56px}.t-btn{padding:4px 8px}.hero{padding:48px 0 42px}.hero h1{font-size:26px}h1{font-size:25px}.lead{font-size:15.5px}.facts > div{grid-template-columns:1fr;gap:2px}.lines-grid{grid-template-columns:1fr}}