:root{--color-bg:#fafaf8;--color-bg-warm:#f5f3ef;--color-text:#2c2c2c;--color-text-light:#6b6b6b;--color-text-lighter:#999;--color-accent:#d4c4e2;--color-accent-deep:#a892c0;--color-accent-green:#a3b8a3;--color-white:#fff;--color-border:#e8e5e0;--color-card-hover:#f0ede8;--sidebar-width:0px;--max-width:1700px;--nav-height:72px;--radius-sm:8px;--radius-md:16px;--radius-lg:24px;--shadow-sm:0 1px 3px #0000000a;--shadow-md:0 4px 20px #0000000f;--shadow-lg:0 8px 40px #00000014;--transition:.3s cubic-bezier(.25, .46, .45, .94)}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{background-color:var(--color-bg);color:var(--color-text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,Hiragino Sans GB,Helvetica Neue,Helvetica,Arial,sans-serif;line-height:1.6;overflow-x:hidden}img{max-width:100%;display:block}a{color:inherit;text-decoration:none}button{cursor:pointer;background:0 0;border:none;font-family:inherit}ul,ol{list-style:none}.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 60px}.section{padding:120px 0}.section-title{letter-spacing:-.02em;margin-bottom:.5rem;font-size:2.4rem;font-weight:600}.section-subtitle{color:var(--color-text-light);margin-bottom:3rem;font-size:1.05rem;font-weight:400}.section-header{text-align:center;margin-bottom:3rem}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:3px}