:root{--bg:#fffdf9;--ink:#1a1a1a;--mu:#6b6b6b;--ln:#ececec;--red:#d93a34;--red2:#c22f2a;--blue:#3d6ef5;--grn:#22a06b;--org:#ef7a3a}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-padding-top:76px}
body{font:16px/1.85 -apple-system,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;color:var(--ink);background:var(--bg);overflow-x:hidden}
a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}
.kx-w{max-width:1160px;margin:0 auto;padding:0 24px}
.kx-top{background:rgba(255,255,255,.92);backdrop-filter:saturate(1.4) blur(10px);position:sticky;top:0;z-index:9;box-shadow:0 1px 0 rgba(0,0,0,.06)}
.kx-topin{display:flex;align-items:center;min-height:64px;gap:20px;flex-wrap:wrap}
.kx-brand{display:flex;margin-right:auto}
.kx-nav{display:flex;gap:2px;flex-wrap:wrap;justify-content:center}
.kx-nav a{color:#333;padding:6px 12px;font-size:15px;border-bottom:2px solid transparent;text-decoration:none}
.kx-nav a:hover{color:var(--ink)}.kx-nav a[aria-current]{color:var(--ink);font-weight:600;border-color:var(--ink)}
.kx-mt,.kx-ml{display:none}
.kx-hero{background:radial-gradient(40% 60% at 15% 20%,rgba(255,214,196,.55),transparent 70%),radial-gradient(40% 60% at 85% 10%,rgba(205,220,255,.6),transparent 70%),radial-gradient(50% 60% at 50% 100%,rgba(206,240,222,.5),transparent 70%),var(--bg);padding:18px 0 10px}
.kx-crumb{font-size:13px;color:#8a8a8a;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:flex;gap:8px}
.kx-crumb a{color:#8a8a8a}
.kx-hc{text-align:center;max-width:1000px;margin:26px auto 0}.kx-lede{max-width:860px}
h1{font-size:44px;line-height:1.3;font-weight:800;letter-spacing:.5px}
.kx-lede{margin:18px auto 26px;max-width:860px;color:#444;font-size:17px;text-align:left}
.kx-dl{display:inline-block;white-space:nowrap;background:var(--red);color:#fff;font-size:18px;font-weight:600;padding:14px 46px;border-radius:999px;box-shadow:0 8px 22px rgba(217,58,52,.22);text-decoration:none!important}
.kx-dl:hover{background:var(--red2)}
.kx-meta{margin-top:14px;font-size:13px;color:var(--mu)}
.kx-fig{margin:30px auto 0;max-width:1080px}.kx-fig img{border-radius:24px}
.kx-body{padding-top:34px;padding-bottom:30px}
.kx-art{max-width:860px;margin:0 auto}
.kx-sec{margin:0 0 50px}
h2{font-size:30px;line-height:1.4;text-align:center;margin-bottom:18px;font-weight:700}
h2 em{font-style:normal;color:var(--red)}
h3{font-size:19px;margin:22px 0 8px}
.kx-sec p{margin:12px 0}
.kx-ans{background:#fff;border-radius:14px;padding:14px 18px;box-shadow:0 2px 14px rgba(0,0,0,.05);font-weight:600;border-left:4px solid var(--red)}
.kx-ref{color:#444}.kx-ref a{font-weight:600}
.kx-ul,.kx-ol{margin:12px 0 12px 22px}.kx-ul li,.kx-ol li{margin:5px 0}
.kx-tw{overflow-x:auto;margin:16px 0;border-radius:14px;box-shadow:0 2px 14px rgba(0,0,0,.05)}
.kx-tab{border-collapse:collapse;width:100%;background:#fff;font-size:15px}
.kx-tab th{background:#f6f6f8;text-align:left;font-weight:600}.kx-tab th,.kx-tab td{padding:11px 14px;border-bottom:1px solid var(--ln)}
.kx-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin:18px 0}
.kx-card{border-radius:18px;padding:22px;background:linear-gradient(160deg,#f3f5ff,#fff 70%);box-shadow:0 2px 14px rgba(0,0,0,.05)}
.kx-card b{display:block;font-size:19px;margin-bottom:4px}.kx-card span{color:var(--mu);font-size:15px}
.kx-c0 b{color:var(--blue)}.kx-c1 b{color:var(--grn)}.kx-c2 b{color:var(--org)}.kx-c3 b{color:var(--red)}
.kx-plats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:20px 0}
.kx-other .kx-plats{grid-template-columns:repeat(3,1fr)}
.kx-plat{display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px;background:#fff;border-radius:16px;padding:18px 10px;box-shadow:0 2px 14px rgba(0,0,0,.05);color:var(--ink);text-decoration:none!important}
.kx-plat svg{width:34px;height:34px;color:#333}.kx-plat span{font-size:13px;color:var(--mu)}
.kx-plat:hover{box-shadow:0 6px 20px rgba(0,0,0,.09)}
.kx-howto{background:#fff;border-radius:18px;padding:20px 22px;box-shadow:0 2px 14px rgba(0,0,0,.05);margin:18px 0}
.kx-howto-t{font-weight:700;font-size:17px;margin:0 0 10px!important}
.kx-steps{list-style:none;display:grid;gap:12px}.kx-steps li{display:flex;gap:14px;align-items:flex-start}
.kx-steps i{font-style:normal;flex:0 0 34px;height:34px;border-radius:50%;background:#fdeceb;color:var(--red);font-weight:700;display:flex;align-items:center;justify-content:center;font-size:14px}
.kx-mid{text-align:center;border-radius:22px;padding:34px 26px;margin:0 0 50px;background:linear-gradient(120deg,#fff1ea,#eef3ff 55%,#eafaf2)}
.kx-mid-title{font-size:26px;font-weight:700;margin:0 0 8px!important}.kx-mid p{margin:0;color:#444}
.kx-lead{text-align:center;color:var(--mu)}
.kx-qa{display:grid;gap:12px}
.kx-qa div{background:#fff;border-radius:14px;padding:16px 20px;box-shadow:0 2px 14px rgba(0,0,0,.05)}
.kx-qa dt{font-weight:700;margin-bottom:4px}.kx-qa dd{color:#444}
.kx-sum ul{background:#fff;border-radius:18px;padding:18px 22px 18px 42px;box-shadow:0 2px 14px rgba(0,0,0,.05)}.kx-sum li{margin:6px 0}
.kx-rel ul{list-style:none;display:grid;gap:8px}.kx-rel li{background:#fff;border-radius:12px;padding:10px 16px;box-shadow:0 1px 8px rgba(0,0,0,.04)}
.kx-foot{background:#fff;border-top:1px solid var(--ln);font-size:13px;color:var(--mu);padding:34px 0 22px}
.kx-fcols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:24px}
.kx-fcols a{display:block;color:#555;margin:3px 0}.kx-fbrand p{margin-top:10px;max-width:300px}
.kx-fh{color:var(--ink);font-weight:600;margin-bottom:6px}
.kx-legal{border-top:1px solid var(--ln);margin-top:22px;padding-top:14px;text-align:center}.kx-legal p{margin:4px 0}
.kx-404{padding:70px 24px;text-align:center}.kx-404 p{margin:14px 0}
@media(max-width:900px){h1{font-size:34px}h2{font-size:25px}.kx-plats{grid-template-columns:repeat(2,1fr)}.kx-fcols{grid-template-columns:1fr 1fr}}
@media(max-width:640px){h1{font-size:27px}h2{font-size:22px}.kx-mid-title{font-size:21px}.kx-cards,.kx-other .kx-plats{grid-template-columns:1fr}.kx-dl{padding:13px 34px;font-size:17px}
.kx-ml{display:block;border:1px solid #ddd;border-radius:999px;padding:2px 14px;font-size:14px;cursor:pointer}
.kx-nav{display:none;width:100%;padding-bottom:10px;justify-content:flex-start}.kx-mt:checked~.kx-nav{display:flex}}