*{box-sizing:border-box;margin:0;padding:0}body{color:#1a1a1a;overflow-wrap:break-word;background:#f7f7f9;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;font-size:15px;line-height:1.6}a{color:inherit;text-decoration:none}.container{max-width:1080px;margin:0 auto;padding:0 24px}.topbar{color:#999;background:#0d0d0d;padding:8px 0;font-size:12.5px}.topbar .container{justify-content:space-between;align-items:center;display:flex}.topbar .tb-left{color:#ccc}.topbar .tb-right a{color:#8ab4f8;font-weight:600}nav{z-index:100;background:#161616;position:sticky;top:0}.nav-inner{justify-content:space-between;align-items:center;height:64px;display:flex}.nav-logo{align-items:center;gap:10px;display:flex}.logo-mark{color:#161616;background:#fff;border-radius:10px;justify-content:center;align-items:center;width:38px;height:38px;font-size:19px;font-weight:900;display:flex}.logo-name{color:#fff;letter-spacing:1px;font-size:17px;font-weight:800}.logo-sub{color:#666;font-size:12px}.nav-menu{gap:26px;display:flex}.nav-menu a{color:#bbb;font-size:14px;transition:color .2s}.nav-menu a:hover,.nav-menu a.active{color:#fff}.nav-cta{color:#161616;background:#fff;border-radius:8px;padding:8px 20px;font-size:14px;font-weight:700;transition:all .2s}.nav-cta:hover{background:#e8e8e8}.nav-toggle{-webkit-appearance:none;appearance:none;cursor:pointer;background:0 0;border:none;flex-shrink:0;padding:6px;display:none}.nav-toggle svg{display:block}.faq-hero{text-align:center;background:#fff;border-bottom:1px solid #eee;padding:56px 0 40px}.faq-hero .crumb{color:#999;margin-bottom:12px;font-size:12px}.faq-hero .crumb a{color:#8ab4f8}.faq-hero h1{letter-spacing:2px;font-size:32px;font-weight:900}.faq-hero p{color:#777;margin-top:8px;font-size:15px}.search-box{max-width:560px;margin:22px auto 0;position:relative}.search-input{color:#1a1a1a;background:#fafafa;border:1px solid #ddd;border-radius:12px;outline:none;width:100%;padding:13px 20px 13px 44px;font-size:15px;transition:all .2s}.search-input:focus{background:#fff;border-color:#8ab4f8;box-shadow:0 0 0 3px #8ab4f82e}.search-icon{stroke:#999;fill:none;stroke-width:2px;width:17px;height:17px;position:absolute;top:50%;left:15px;transform:translateY(-50%)}.search-clear{color:#555;cursor:pointer;background:#e5e5e5;border:none;border-radius:50%;width:22px;height:22px;font-size:13px;line-height:1;display:none;position:absolute;top:50%;right:12px;transform:translateY(-50%)}.search-clear.show{display:block}.search-results{text-align:left;z-index:60;background:#fff;border:1px solid #e5e5ea;border-radius:14px;max-height:420px;display:none;position:absolute;top:calc(100% + 8px);left:0;right:0;overflow-y:auto;box-shadow:0 12px 32px #0d0d0d1f}.search-results.show{display:block}.search-res-item{cursor:pointer;border-bottom:1px solid #f0f0f3;align-items:center;gap:10px;padding:12px 16px;transition:background .15s;display:flex}.search-res-item:last-child{border-bottom:none}.search-res-item:hover{background:#f5f8ff}.search-res-q{color:#222;flex:1;font-size:14px;font-weight:600}.search-res-cat{color:#8ab4f8;background:#8ab4f81f;border-radius:999px;flex-shrink:0;padding:3px 9px;font-size:11px;font-weight:600}.search-empty{text-align:center;color:#999;padding:20px;font-size:13px}.cat-grid{grid-template-columns:repeat(3,1fr);gap:16px;padding:32px 0 8px;display:grid}.cat-card{background:#fff;border:1px solid #e8e8ee;border-radius:14px;padding:26px 22px;transition:all .2s;display:block}.cat-card:hover{border-color:#8ab4f8;transform:translateY(-2px);box-shadow:0 8px 24px #0d0d0d0f}.cat-icon{background:#f0f4fd;border-radius:12px;justify-content:center;align-items:center;width:46px;height:46px;margin-bottom:14px;display:flex}.cat-icon svg{stroke:#5b8dee;fill:none;stroke-width:1.8px;width:24px;height:24px}.cat-card h3{color:#161616;margin-bottom:6px;font-size:17px;font-weight:800}.cat-card .cat-desc{color:#999;margin-bottom:12px;font-size:13px}.cat-card .cat-count{color:#8ab4f8;font-size:12px;font-weight:600}.hot-section{padding:32px 0 48px}.hot-title{color:#161616;border-left:4px solid #8ab4f8;margin-bottom:16px;padding-left:12px;font-size:18px;font-weight:900}.hot-grid{grid-template-columns:repeat(2,1fr);gap:12px;display:grid}.hot-q{color:#333;background:#fff;border:1px solid #e8e8ee;border-radius:12px;align-items:center;gap:12px;padding:16px 18px;font-size:14px;transition:all .2s;display:flex}.hot-q:hover{color:#8ab4f8;border-color:#8ab4f8}.hot-q .q-num{color:#8ab4f8;background:#161616;border-radius:7px;flex-shrink:0;justify-content:center;align-items:center;width:24px;height:24px;font-size:12px;font-weight:800;display:flex}.cta-banner{text-align:center;color:#fff;background:#161616;border-radius:16px;max-width:1080px;margin:0 auto 48px;padding:40px 32px}.cta-banner h3{margin-bottom:8px;font-size:20px;font-weight:800}.cta-banner p{color:#999;margin-bottom:20px;font-size:13px}.cta-btn{color:#161616;background:#fff;border-radius:8px;padding:11px 28px;font-size:14px;font-weight:700;display:inline-block}.cta-btn:hover{background:#e8e8e8}.site-footer{background:#0d0d0d;padding:36px 0}.site-footer .container{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;display:flex}.site-footer .f-left{color:#666;font-size:13px}.site-footer .f-right{color:#555;text-align:right;font-size:12px}.site-footer .f-right a{color:#777}.site-footer .f-right a:hover{color:#bbb}@media (width<=768px){html,body{overflow-x:hidden}.container{padding:0 16px}img,svg{max-width:100%}.topbar{padding:7px 0}.topbar .container{flex-direction:column;align-items:flex-start;gap:2px}.topbar .tb-left,.topbar .tb-right{font-size:11.5px;line-height:1.6}nav .nav-inner{gap:8px;height:58px}.nav-logo{gap:8px;min-width:0}.logo-mark{border-radius:8px;width:32px;height:32px;font-size:16px}.logo-name{letter-spacing:.5px;white-space:nowrap;font-size:15px}.logo-sub{display:none}.nav-cta{white-space:nowrap;border-radius:7px;flex-shrink:0;padding:7px 12px;font-size:12.5px}.nav-toggle{justify-content:center;align-items:center;width:36px;height:36px;display:flex}.nav-menu{z-index:99;background:#161616;border-top:1px solid #262626;flex-direction:column;gap:0;padding:8px 0 24px;display:none;position:fixed;inset:58px 0 0;overflow-y:auto}.nav-menu.open{display:flex}.nav-menu a{color:#ccc;border-bottom:1px solid #222;padding:15px 24px;font-size:15px}.nav-menu a:last-child{border-bottom:none}.nav-menu a.active{color:#8ab4f8}.faq-hero{padding:36px 0 28px}.faq-hero h1{font-size:24px}.faq-hero p{font-size:13.5px}.search-box{margin:18px auto 0}.search-input{padding:12px 42px;font-size:16px}.search-results{max-height:340px}.cat-grid{grid-template-columns:repeat(2,1fr);gap:10px;padding:22px 0 4px}.cat-card{padding:18px 14px}.cat-icon{width:40px;height:40px;margin-bottom:10px}.cat-card h3{font-size:15px}.cat-card .cat-desc{margin-bottom:8px;font-size:12px}.cat-card .cat-count{font-size:11px}.hot-section{padding:26px 0 40px}.hot-title{font-size:16px}.hot-grid{grid-template-columns:1fr;gap:10px}.hot-q{padding:14px 16px;font-size:13.5px}.cta-banner{margin:0 16px 40px;padding:26px 18px}.cta-banner h3{font-size:17px}.cta-btn{padding:10px 24px;font-size:13.5px}.site-footer{padding:28px 0}.site-footer .container{flex-direction:column;align-items:flex-start;gap:6px}.site-footer .f-left{font-size:12px;line-height:1.8}.site-footer .f-right{text-align:left;font-size:11px}}
