:root{--bg:#FAFAF6;--card:#FFFFFF;--section:#F0F3EC;--soft:#E4EBDF;--title:#20352B;--text:#34433B;--muted:#52645A;--hint:#59685E;--primary:#32634E;--deep:#244A39;--orange:#B75E35;--line:#DBE3D9;--shadow:0 9px 26px rgba(29,53,41,.07);--max:1120px;--article:720px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8}a{color:var(--deep);text-decoration:none}a:hover{text-decoration:underline}button,a{touch-action:manipulation}button:focus-visible,a:focus-visible{outline:3px solid rgba(50,99,78,.32);outline-offset:3px}.skip-link{position:fixed;left:16px;top:-80px;z-index:100;background:#fff;padding:10px 14px;border:1px solid var(--line);border-radius:8px}.skip-link:focus{top:10px}.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid 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@media(max-width:390px){.footer-links{grid-template-columns:1fr}.hero-actions{display:grid;grid-template-columns:1fr}.btn{width:100%}.panel-heading{gap:10px}.footer-brand{flex-direction:column}}