:root{--ink:#161616;--blue:#2448e8;--muted:#737373;--line:#e9e9e9;--max:1440px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:80px}body{margin:0;background:#fff;color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit}.wrap{width:calc(100% - 112px);max-width:var(--max);margin-inline:auto}svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}.site-header{height:88px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:14px;font-size:25px;font-weight:700;white-space:nowrap}.brand-mark{width:48px;height:48px;background:#111;color:#fff;display:grid;place-items:center;font-size:18px;letter-spacing:1px}.site-header nav{display:flex;align-items:center;gap:36px;font-size:14px;white-space:nowrap}.site-header nav>a{position:relative}.site-header nav>a:not(.color-mark){padding-block:11px}.site-header nav>a.current{color:var(--blue)}.site-header nav>a.current:after{content:"";height:2px;position:absolute;bottom:0;left:0;right:0;background:var(--blue)}.site-header a:hover{color:var(--blue)}.site-header a.brand:hover{color:var(--ink)}.contact-link{display:flex;align-items:center;gap:10px}.contact-link svg{width:18px;height:18px}.color-mark{width:26px;height:26px;display:grid;place-items:center;background:#f04e41;border-radius:50%}.color-mark i{display:block;width:8px;height:8px;background:#ffe353;border-radius:50%}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:24px}.section-heading h2{margin:0;font-size:28px;line-height:1.4;font-weight:650;letter-spacing:-.6px}.section-heading>a{display:flex;align-items:center;gap:10px;font-size:14px;white-space:nowrap}.section-heading>a:hover{color:var(--blue)}footer{display:flex;justify-content:space-between;align-items:center;padding-block:30px 32px;font-size:12px;color:var(--muted)}footer>a{display:flex;align-items:center;gap:10px}footer svg{width:18px;height:18px}:focus-visible{outline:2px solid var(--blue);outline-offset:5px}a svg{transition:transform .2s}a:hover>svg{transform:translate(2px,-2px)}[hidden]{display:none!important}
@media(max-width:1100px){.wrap{width:calc(100% - 64px)}.site-header nav{gap:25px}.brand{font-size:22px}}
@media(max-width:700px){html{scroll-padding-top:68px}.wrap{width:calc(100% - 40px)}.site-header{height:76px;gap:15px}.brand{gap:9px;font-size:17px}.brand-mark{width:34px;height:34px;font-size:13px}.site-header nav{gap:16px;font-size:12px}.site-header .nav-about,.site-header .nav-selected{display:none}.contact-link{gap:4px}.contact-link svg{width:14px;height:14px}.color-mark{width:22px;height:22px}.color-mark i{width:6px;height:6px}.section-heading{gap:12px}.section-heading h2{font-size:21px;letter-spacing:-.4px}.section-heading>a{font-size:12px;gap:5px}.section-heading>a svg{width:18px;height:18px}footer{font-size:11px;padding-block:25px}}
@media(max-width:360px){.site-header nav{gap:12px}.brand{font-size:16px;gap:7px}.wrap{width:calc(100% - 32px)}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}a svg{transition:none}}