*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--blue: oklch(.52 .14 245);--blue-light: oklch(.95 .02 245);--blue-hover: oklch(.46 .14 245);--orange: oklch(.65 .18 45);--orange-light: oklch(.95 .04 45);--green: oklch(.55 .14 155);--green-light: oklch(.95 .03 155);--bg: oklch(.985 .003 250);--surface: #fff;--border: oklch(.9 .005 250);--text-primary: oklch(.18 .01 250);--text-secondary: oklch(.45 .01 250);--text-tertiary: oklch(.6 .008 250);--radius: 6px;--max-w: 740px}html{font-size:16px;-webkit-font-smoothing:antialiased}body{font-family:-apple-system,PingFang SC,Microsoft YaHei,Helvetica Neue,system-ui,sans-serif;background:var(--bg);color:var(--text-primary);line-height:1.6;min-height:100vh}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline;color:var(--blue-hover)}::selection{background:#a2d4ff}input:focus{outline:none}button{font-family:inherit;cursor:pointer}.page{max-width:var(--max-w);margin:0 auto;padding:0 20px 80px}.site-header{display:flex;align-items:center;padding:16px 20px;max-width:var(--max-w);margin:0 auto;border-bottom:1px solid var(--border)}.logo{display:flex;align-items:center}.logo img{height:48px;width:auto;display:block}.logo:hover{text-decoration:none}.search-wrap{display:flex;gap:8px;border:1.5px solid var(--border);border-radius:var(--radius);padding:4px 4px 4px 14px;background:var(--surface);transition:border-color .15s;align-items:center}.search-wrap:focus-within{border-color:var(--blue)}.search-input{flex:1;border:none;font-size:15px;background:transparent;color:var(--text-primary);line-height:36px;min-width:0;font-family:inherit}.search-btn{padding:8px 18px;background:var(--blue);color:#fff;border:none;border-radius:var(--radius);font-size:14px;font-weight:500;white-space:nowrap;transition:background .15s}.search-btn:hover{background:var(--blue-hover)}.card{border:1px solid var(--border);border-radius:var(--radius);padding:16px 20px;background:var(--surface)}.card-blue{background:var(--blue-light);border-color:transparent}.card-orange{background:var(--orange-light);border-color:transparent}.badge{display:inline-flex;align-items:center;gap:5px;font-size:12px;color:var(--green);background:var(--green-light);padding:3px 10px;border-radius:var(--radius);font-weight:500}.tag{display:inline-block;font-size:11px;font-weight:500;padding:2px 8px;border-radius:var(--radius);background:var(--blue-light);color:var(--blue)}.section-title{font-size:12px;font-weight:600;color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.05em;margin-bottom:12px}.breadcrumb{font-size:13px;color:var(--text-tertiary);display:flex;flex-wrap:wrap;gap:4px;align-items:center;padding-top:20px;margin-bottom:20px}.breadcrumb a{color:var(--text-tertiary)}.breadcrumb a:hover{color:var(--blue);text-decoration:none}.steps-list{list-style:none}.step-item{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--border);font-size:14px;line-height:1.6;align-items:flex-start}.step-item:last-child{border-bottom:none}.step-num{min-width:26px;height:26px;border-radius:50%;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600;flex-shrink:0;margin-top:1px}.check-num{min-width:24px;height:24px;border-radius:50%;background:var(--blue-light);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:600;flex-shrink:0}.site-footer{border-top:1px solid var(--border);margin-top:60px;padding:24px 0;font-size:13px;color:var(--text-tertiary);display:flex;flex-wrap:wrap;gap:8px 24px}.footer-btn{background:none;border:none;padding:0;font-size:13px;color:var(--text-tertiary);cursor:pointer;font-family:inherit;transition:color .15s}.footer-btn:hover{color:var(--blue);text-decoration:underline}.footer-disclaimer{width:100%;margin-top:8px;font-size:12px;line-height:1.5}.modal-overlay{display:none;position:fixed;inset:0;background:#0000004d;z-index:100;align-items:center;justify-content:center;padding:20px}.modal-overlay.open{display:flex}.modal-box{background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);padding:28px 24px;max-width:480px;width:100%;position:relative}.modal-title{font-size:16px;font-weight:600;margin-bottom:12px}.modal-body{font-size:14px;color:var(--text-secondary);line-height:1.7}.modal-close{position:absolute;top:16px;right:16px;background:none;border:none;cursor:pointer;color:var(--text-tertiary);font-size:18px;line-height:1;padding:4px}.modal-close:hover{color:var(--text-primary)}code{background:#0000000f;padding:1px 5px;border-radius:3px;font-size:12px}@media(max-width:480px){.search-btn{padding:8px 12px;font-size:13px}.search-input{font-size:14px}}