:root{--bg:#fbfbfa;--bg-subtle:#f4f3ef;--text:#1a1a19;--text-muted:#57564f;--text-light:#8c8b82;--accent:#2563eb;--card-border:#e7e5e0;--font-serif:-apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace}*{box-sizing:border-box;margin:0;padding:0}html,body{background:var(--bg);color:var(--text);font-family:var(--font-serif);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;flex-direction:column;min-height:100vh;display:flex;overflow-x:hidden}a{color:inherit;text-decoration:none}.container{width:100%;max-width:1140px;margin:0 auto;padding:0 20px}.site-header{border-bottom:1px solid var(--card-border);backdrop-filter:blur(8px);z-index:100;background:#fbfbfaf2;position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;height:56px;display:flex}.brand-logo{letter-spacing:-.4px;color:var(--text);white-space:nowrap;align-items:baseline;gap:6px;font-size:16.5px;font-weight:800;display:flex}.brand-badge{color:var(--accent);background:#2563eb0f;border:1px solid #2563eb33;border-radius:4px;padding:1px 6px;font-size:10.5px;font-weight:600}.nav-desktop-links{align-items:center;gap:14px;display:flex}.nav-item{color:var(--text-muted);white-space:nowrap;font-size:13px;font-weight:600;transition:color .15s}.nav-item:hover{color:var(--text)}.nav-lang-switch{color:var(--text);border:1px solid var(--card-border);white-space:nowrap;background:#fff;border-radius:6px;align-items:center;gap:4px;padding:5px 10px;font-size:12px;font-weight:600;transition:all .15s;display:inline-flex}.nav-lang-switch:hover{border-color:var(--text);background:var(--bg-subtle)}.nav-btn-wechat{border:1px solid var(--card-border);color:var(--text);cursor:pointer;white-space:nowrap;background:0 0;border-radius:6px;align-items:center;gap:4px;padding:5px 11px;font-size:13px;font-weight:600;transition:all .15s;display:inline-flex}.nav-btn-wechat:hover{border-color:var(--text);background:#fff}.nav-github-link{color:var(--text-muted);border:1px solid var(--card-border);white-space:nowrap;border-radius:6px;align-items:center;gap:4px;padding:5px 11px;font-size:13px;font-weight:600;transition:all .15s;display:inline-flex}.nav-github-link:hover{border-color:var(--text);color:var(--text);background:#fff}.mobile-nav-right{align-items:center;gap:8px;display:none}.btn-hamburger{border:1px solid var(--card-border);cursor:pointer;width:40px;height:40px;color:var(--text);background:#fff;border-radius:6px;justify-content:center;align-items:center;font-size:18px;display:inline-flex}.mobile-drawer-backdrop{backdrop-filter:blur(4px);z-index:999;opacity:0;background:#00000073;transition:opacity .2s;display:none;position:fixed;inset:0}.mobile-drawer-backdrop.open{opacity:1;display:block}.mobile-drawer-panel{border-left:1px solid var(--card-border);z-index:1000;background:#fff;flex-direction:column;width:80%;max-width:320px;height:100vh;padding:20px;transition:transform .25s cubic-bezier(.4,0,.2,1);display:flex;position:fixed;top:0;right:0;transform:translate(100%);box-shadow:-10px 0 30px #0000001a}.mobile-drawer-panel.open{transform:translate(0)}.drawer-header{border-bottom:1px solid var(--card-border);justify-content:space-between;align-items:center;margin-bottom:20px;padding-bottom:16px;display:flex}.drawer-title{color:var(--text);font-size:16px;font-weight:800}.btn-drawer-close{background:var(--bg-subtle);border:1px solid var(--card-border);cursor:pointer;width:36px;height:36px;color:var(--text);border-radius:6px;justify-content:center;align-items:center;font-size:18px;display:inline-flex}.drawer-nav-list{flex-direction:column;gap:12px;margin-bottom:28px;display:flex}.drawer-nav-item{color:var(--text);background:var(--bg-subtle);border:1px solid var(--card-border);white-space:nowrap;border-radius:8px;align-items:center;gap:10px;padding:10px 14px;font-size:15px;font-weight:700;display:flex}.drawer-nav-item:active{border-color:var(--accent);background:#fff}.drawer-footer-actions{border-top:1px solid var(--card-border);flex-direction:column;gap:10px;margin-top:auto;padding-top:20px;display:flex}.btn-drawer-wechat{color:#fff;cursor:pointer;text-align:center;background:#07c160;border:none;border-radius:8px;width:100%;padding:12px;font-size:14px;font-weight:700}.btn-drawer-gh{background:var(--text);color:#fff;cursor:pointer;text-align:center;border:none;border-radius:8px;width:100%;padding:12px;font-size:14px;font-weight:700}@media (width<=768px){.nav-desktop-links{display:none}.mobile-nav-right{display:flex}}.site-footer{border-top:1px solid var(--card-border);background:var(--bg-subtle);color:var(--text-muted);margin-top:auto;padding:44px 0 28px;font-size:13px}.footer-inner{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:28px;display:flex}.footer-brand h4{color:var(--text);margin-bottom:6px;font-size:15px;font-weight:700}.footer-brand p{max-width:480px;font-size:13px;line-height:1.6}.footer-links{flex-wrap:wrap;gap:16px;display:flex}.footer-ecosystem{border-top:1px solid var(--card-border);color:var(--text-light);flex-wrap:wrap;align-items:center;gap:14px;margin-top:24px;padding-top:16px;font-size:12px;display:flex}.footer-bottom{border-top:1px solid var(--card-border);color:var(--text-light);flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:20px;padding-top:20px;font-size:12px;display:flex}.wechat-modal-backdrop{backdrop-filter:blur(4px);z-index:1000;background:#00000073;justify-content:center;align-items:center;padding:16px;display:none;position:fixed;inset:0}.wechat-modal-backdrop.open{display:flex}.wechat-modal-card{border:1px solid var(--card-border);text-align:center;background:#fff;border-radius:12px;width:100%;max-width:340px;padding:24px 20px;position:relative;box-shadow:0 20px 40px -15px #0000001f}.modal-close-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;width:32px;height:32px;font-size:22px;line-height:1;position:absolute;top:12px;right:12px}.modal-qrcode-img{object-fit:contain;border:1px solid var(--card-border);border-radius:8px;width:160px;height:160px;margin:14px auto;display:block}.modal-title{color:var(--text);margin-bottom:6px;font-size:16px;font-weight:700}.modal-desc{color:var(--text-muted);font-size:12.5px;line-height:1.5}