:root,.post-body{--primary:#ec4899;--primary-dark:#db2777;--primary-light:#fce7f3;--accent:#f97316;--gradient-start:#ec4899;--gradient-mid:#fb7185;--gradient-end:#fbbf24;--ink:#0f172a;--ink-2:#334155;--muted:#64748b;--bg:#fff;--bg-alt:#fef7f9;--border:#fce7f3;--radius:16px;--shadow:0 10px 30px #ec489914;--maxw:1080px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;margin:0;font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,Segoe UI,Roboto,sans-serif;line-height:1.7}a{color:var(--primary-dark);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}.container.narrow{max-width:760px}.muted{color:var(--muted)}.center{text-align:center}.site-header{z-index:50;-webkit-backdrop-filter:saturate(180%)blur(12px);backdrop-filter:saturate(180%)blur(12px);border-bottom:1px solid var(--border);background:#ffffffd9;position:sticky;top:0}.nav-wrap{align-items:center;gap:24px;height:64px;display:flex}.logo{color:var(--ink);align-items:center;gap:8px;font-size:20px;font-weight:800;display:flex}.logo-img{object-fit:cover;border-radius:50%;width:34px;height:34px;box-shadow:0 2px 8px #ec489940}.nav{gap:22px;margin-left:auto;display:flex}.nav a{color:var(--ink-2);font-weight:500}.nav a.active,.nav a:hover{color:var(--primary-dark);text-decoration:none}.post{padding:40px 0 56px}.crumb{color:var(--muted);margin-bottom:18px;font-size:14px}.crumb a{color:var(--muted)}.post-cat{background:var(--primary-light);color:var(--primary-dark);border-radius:999px;margin-bottom:10px;padding:3px 12px;font-size:12px;font-weight:700;display:inline-block}.post-title{margin:10px 0 14px;font-size:clamp(26px,4vw,38px);line-height:1.25}.post-meta{color:var(--muted);flex-wrap:wrap;gap:18px;margin-bottom:24px;font-size:14px;display:flex}.post-body{color:var(--ink-2);font-size:17px}.post-body h2{color:var(--ink);margin:36px 0 14px;font-size:24px}.post-body h3{color:var(--ink);margin:28px 0 12px;font-size:20px}.post-body h4{color:var(--ink);margin:24px 0 10px;font-size:18px}.post-body p{margin:0 0 18px}.post-body img{border-radius:12px;max-width:100%;margin:12px 0}.post-body ul,.post-body ol{margin:0 0 18px;padding-left:22px}.post-body li{margin:6px 0}.post-body blockquote{border-left:4px solid var(--primary);background:var(--bg-alt);color:var(--ink-2);border-radius:0 12px 12px 0;margin:18px 0;padding:12px 18px}.post-body blockquote p{margin:0}.post-body code{background:#f1f5f9;border-radius:6px;padding:2px 6px;font-size:14px}.post-body .table-wrap{border:1px solid #ec489966;border-radius:12px;margin:22px 0;overflow:hidden}.post-body table{border-collapse:collapse;background:#fff;width:100%;font-size:15px}.post-body thead th{background:var(--primary);color:#fff;text-align:left;white-space:nowrap;border:1px solid #ec489973;padding:12px 16px;font-weight:700}.post-body tbody th{background:var(--bg-alt);color:var(--ink);text-align:left;white-space:nowrap;border:1px solid #ec489947;padding:11px 16px;font-weight:600}.post-body td{color:var(--ink-2);vertical-align:top;border:1px solid #ec489947;padding:11px 16px}.post-body tbody tr:nth-child(2n) td,.post-body tbody tr:nth-child(2n) th{background:#fffafc}.post-body tbody tr:hover td,.post-body tbody tr:hover th{background:var(--bg-alt)}.post-body table p{margin:0}@media (width<=640px){.post-body .table-wrap{-webkit-overflow-scrolling:touch;overflow-x:auto}.post-body table{min-width:480px}}.post-body pre{color:#e2e8f0;background:#0f172a;border-radius:12px;padding:16px;overflow:auto}.post-body pre code{color:inherit;background:0 0;padding:0}.post-body a{color:var(--primary-dark);font-weight:600}.tags{flex-wrap:wrap;gap:8px;margin-top:26px;display:flex}.tag{background:var(--primary-light);color:var(--primary-dark);border-radius:999px;padding:4px 12px;font-size:13px}.wechat-cta{text-align:center;background:var(--primary-light);color:var(--primary-dark);border-radius:12px;margin-top:30px;padding:16px 22px;font-weight:600;text-decoration:none;display:block}.wechat-cta:hover{text-decoration:none}.site-footer{color:#cbd5e1;background:#0f172a;margin-top:40px;padding:48px 0 24px}.footer-grid{grid-template-columns:2fr 1fr 1fr;gap:30px;display:grid}.site-footer .logo{color:#fff;margin-bottom:12px;font-size:20px;font-weight:800}.site-footer h4{color:#fff;margin:0 0 12px;font-size:16px}.site-footer a{color:#93c5fd}.site-footer .muted{color:#94a3b8}.copyright{color:#94a3b8;border-top:1px solid #1e293b;margin-top:32px;padding-top:18px;font-size:14px}@media (width<=820px){.footer-grid{grid-template-columns:1fr}.nav{display:none}}.tab-panel[hidden]{display:none}.btn{cursor:pointer;border:1px solid #0000;border-radius:999px;padding:12px 22px;font-weight:600;transition:all .2s;display:inline-block}.btn-sm{padding:8px 16px;font-size:14px}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px #ec48994d}.btn-primary:hover{background:var(--primary-dark);color:#fff;text-decoration:none}.btn-ghost{color:var(--primary-dark);border-color:var(--primary-light);background:#fff}.btn-ghost:hover{background:var(--primary-light);text-decoration:none}.hero{background:radial-gradient(1200px 420px at 85% -15%,#fce7f3 0%,#0000 55%),radial-gradient(900px 420px at 5% 0,#fff1e6 0%,#0000 55%),radial-gradient(800px 480px at 50% 130%,#fef3c7 0%,#0000 60%);padding:72px 0 56px}.badge{color:var(--primary-dark);border:1px solid var(--primary-light);background:#fff;border-radius:999px;margin-bottom:18px;padding:6px 14px;font-size:14px;font-weight:600;display:inline-block}.hero h1{letter-spacing:-.5px;color:var(--ink);margin:0 0 16px;font-size:clamp(28px,5vw,46px);line-height:1.2}.hero-sub{color:var(--ink-2);white-space:nowrap;margin:0 0 28px;font-size:18px}.hero-cta{flex-wrap:wrap;gap:14px;display:flex}.section{padding:56px 0}.section-alt{background:var(--bg-alt)}.section-title{text-align:center;margin:0 0 32px;font-size:26px}.page-title{margin:0 0 8px;font-size:32px}.grid{gap:20px;display:grid}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.card,.post-card{border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);background:#fff;padding:24px;transition:all .2s}.card:hover,.post-card:hover{border-color:var(--primary-light);text-decoration:none;transform:translateY(-3px)}.card-icon{margin-bottom:10px;font-size:32px}.card h3,.post-card h3{color:var(--ink);margin:0 0 8px;font-size:18px}.card p,.post-card p{color:var(--ink-2);margin:0;font-size:15px}.post-card{flex-direction:column;display:flex}.post-cat{background:var(--primary-light);color:var(--primary-dark);border-radius:999px;align-self:flex-start;margin-bottom:10px;padding:3px 10px;font-size:12px;font-weight:700;display:inline-block}.post-date{color:var(--muted);margin-top:auto;padding-top:12px;font-size:13px;display:block}.latest-cta{margin-top:32px}.steps{grid-template-columns:repeat(3,1fr);gap:22px;display:grid}.step{border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);background:#fff;align-items:flex-start;gap:14px;padding:22px;display:flex}.step-n{background:var(--primary);color:#fff;border-radius:50%;flex:0 0 40px;place-items:center;width:40px;height:40px;font-weight:800;display:grid}.step h3{margin:0 0 6px;font-size:17px}.step p{color:var(--ink-2);margin:0;font-size:15px}.about-box{max-width:var(--maxw);text-align:center;margin:0 auto}.about-box p{color:var(--ink-2);font-size:16px}.about-text{max-width:100%;color:var(--ink);margin:0 auto;font-size:17px;line-height:1.95}.wechat-pill{background:var(--primary-light);color:var(--primary-dark);border-radius:999px;margin:32px 0;padding:8px 18px;font-weight:600;text-decoration:none;display:inline-block}.wechat-pill:hover{text-decoration:none}.knowledge-nav{border:1px solid var(--border);border-radius:var(--radius);background:#fff;margin:22px 0;padding:16px 22px}.knowledge-nav ul{margin:8px 0 0;padding-left:20px}.filter-bar{margin:28px 0 22px}.filter-tabs{flex-wrap:wrap;gap:10px;display:flex}.filter-tab{border:1px solid var(--border);color:var(--ink-2);cursor:pointer;background:#fff;border-radius:999px;padding:8px 18px;font-size:14px;font-weight:700;transition:all .15s}.filter-tab:hover{border-color:var(--primary-light);background:var(--bg-alt);color:var(--primary-dark)}.filter-tab.active{background:var(--primary);border-color:var(--primary);color:#fff}.search-box{margin-top:16px}.search-box input{border:1px solid var(--border);width:100%;max-width:420px;color:var(--ink-2);background:#fff;border-radius:999px;outline:none;padding:10px 16px;font-size:15px}.search-box input:focus{border-color:var(--primary-light);box-shadow:0 0 0 3px #ec48991f}.faq{gap:14px;max-width:820px;margin:0 auto;display:grid}.faq-item{border:1px solid var(--border);border-left:4px solid var(--primary);background:#fff;border-radius:12px;padding:16px 20px}.faq-item h3{margin:0 0 6px;font-size:17px}.faq-item p{color:var(--ink-2);margin:0}@media (width<=820px){.grid-2,.grid-3,.steps{grid-template-columns:1fr}.hero-sub{white-space:normal}.hero{padding:48px 0 40px}.section{padding:40px 0}}.lightbox{z-index:100;cursor:zoom-out;background:#1a1018db;justify-content:center;align-items:center;padding:24px;animation:.2s poster-fade;display:flex;position:fixed;inset:0}.lightbox[hidden]{display:none}@keyframes poster-fade{0%{opacity:0}to{opacity:1}}.lightbox img{cursor:default;border-radius:10px;max-width:calc(100vw - 48px);max-height:calc(100dvh - 96px);box-shadow:0 24px 80px #00000073}@media (prefers-reduced-motion:reduce){.lightbox{animation:none}}@media (width<=640px){.lightbox{padding:12px}.lightbox img{border-radius:8px;max-width:calc(100vw - 24px);max-height:calc(100dvh - 24px)}}