*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;font-size:16px;line-height:1.85;letter-spacing:.01em}
img{display:block;max-width:100%;height:auto;border:0}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;font-family:"Songti SC","STSong","SimSun",Georgia,serif;font-weight:600;line-height:1.32;letter-spacing:.02em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:root{
--ink:#1b2733;--ink2:#3b4a5a;--muted:#6d7a86;--paper:#f7f4ee;--card:#fffdf8;--line:#dbd4c7;
--accent:#bf5a2d;--accent-d:#9c4520;--teal:#2b5d55;--radius:2px;
--serif:"Songti SC","STSong","SimSun",Georgia,serif;
}
.n6n-shell{width:100%;max-width:1180px;margin:0 auto;padding:0 24px}
.n6n-topbar{border-bottom:1px solid var(--line);background:var(--paper);font-size:13px;color:var(--muted)}
.n6n-topbar .n6n-shell{display:flex;justify-content:space-between;gap:16px;padding:8px 24px;flex-wrap:wrap}
.n6n-header{position:sticky;top:0;z-index:50;background:rgba(247,244,238,.94);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.n6n-head{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 24px;max-width:1180px;margin:0 auto}
.n6n-brand{display:flex;align-items:center;gap:12px;min-width:0}
.n6n-brand img{width:46px;height:46px;flex:0 0 46px}
.n6n-brand span{font-family:var(--serif);font-size:17px;letter-spacing:.04em;line-height:1.3;display:block}
.n6n-brand small{display:block;font-size:11px;color:var(--muted);letter-spacing:.14em;text-transform:uppercase}
.n6n-nav{display:flex;align-items:center;gap:2px;flex-wrap:wrap}
.n6n-nav a{padding:8px 12px;font-size:14.5px;color:var(--ink2);border-bottom:2px solid transparent;white-space:nowrap}
.n6n-nav a:hover,.n6n-nav a[aria-current="page"]{color:var(--ink);border-bottom-color:var(--accent)}
.n6n-navbtn{display:none;border:1px solid var(--ink);background:transparent;color:var(--ink);font:inherit;font-size:13px;padding:7px 12px;cursor:pointer;letter-spacing:.1em}
.n6n-main{display:block}
.n6n-hero{padding:64px 0 0;border-bottom:1px solid var(--line)}
.n6n-hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:56px;align-items:center;padding-bottom:56px}
.n6n-eyebrow{font-size:12px;letter-spacing:.22em;color:var(--accent);text-transform:uppercase;margin-bottom:18px}
.n6n-hero h1{font-size:clamp(34px,4.4vw,54px);letter-spacing:.01em;margin-bottom:22px}
.n6n-lede{font-size:16.5px;color:var(--ink2);max-width:46em}
.n6n-actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.n6n-btn{display:inline-block;padding:13px 24px;background:var(--ink);color:#fbf8f2;font-size:14.5px;letter-spacing:.06em;border:1px solid var(--ink)}
.n6n-btn:hover{background:var(--accent);border-color:var(--accent)}
.n6n-btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--ink)}
.n6n-btn-ghost:hover{background:var(--ink);color:#fbf8f2;border-color:var(--ink)}
.n6n-figure{position:relative;border:1px solid var(--line);background:var(--card);padding:12px}
.n6n-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;height:auto}
.n6n-figure figcaption{font-size:12px;color:var(--muted);padding-top:10px;letter-spacing:.06em}
.n6n-stats{border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}
.n6n-stat{padding:26px 24px;border-right:1px solid var(--line)}
.n6n-stat:last-child{border-right:0}
.n6n-artfig{margin:0 0 26px}
.n6n-artfig img{width:100%;height:auto;border:1px solid var(--line)}
.n6n-artfig figcaption{margin-top:8px;font-size:12.5px;color:var(--muted)}
.n6n-statnote{display:block;font-size:12.5px;line-height:1.6;color:var(--muted);margin-top:6px}
.n6n-stat b{display:block;font-family:var(--serif);font-size:34px;line-height:1.1;color:var(--ink)}
.n6n-stat em{display:block;font-style:normal;font-size:12px;letter-spacing:.18em;color:var(--accent);margin:6px 0 8px}
.n6n-stat p{font-size:13.5px;color:var(--muted);line-height:1.7}
.n6n-section{padding:72px 0;border-bottom:1px solid var(--line)}
.n6n-section-alt{background:var(--card)}
.n6n-shead{display:grid;grid-template-columns:64px minmax(0,1fr);gap:20px;align-items:start;margin-bottom:36px}
.n6n-shead .n6n-idx{font-family:var(--serif);font-size:14px;color:var(--accent);letter-spacing:.1em;padding-top:8px}
.n6n-shead h2{font-size:clamp(24px,2.6vw,34px)}
.n6n-shead p{color:var(--ink2);font-size:15px;max-width:60em;margin-top:10px}
.n6n-grid4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
.n6n-grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}
.n6n-grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
.n6n-card{background:var(--card);border:1px solid var(--line);padding:26px 24px;transition:transform .18s ease,box-shadow .18s ease}
.n6n-card:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(27,39,51,.08)}
.n6n-card .n6n-tag{font-size:11.5px;letter-spacing:.18em;color:var(--accent);display:block;margin-bottom:12px}
.n6n-card h3{font-size:19px;margin-bottom:10px}
.n6n-card p{font-size:14px;color:var(--ink2);line-height:1.8}
.n6n-card .n6n-price{margin-top:16px;font-family:var(--serif);font-size:15px;color:var(--teal);display:block}
.n6n-link{display:inline-block;margin-top:16px;font-size:13.5px;color:var(--accent);border-bottom:1px solid var(--accent);padding-bottom:2px}
.n6n-link:hover{color:var(--accent-d)}
.n6n-tablewrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);background:var(--card)}
.n6n-table{width:100%;border-collapse:collapse;min-width:720px;font-size:14px}
.n6n-table caption{text-align:left;padding:14px 18px;font-size:12.5px;color:var(--muted);border-bottom:1px solid var(--line)}
.n6n-table th,.n6n-table td{padding:13px 18px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;line-height:1.75}
.n6n-table thead th{background:#efe9dd;font-weight:600;font-size:13px;letter-spacing:.06em;color:var(--ink)}
.n6n-table tbody tr:nth-child(even){background:#faf7f1}
.n6n-table th[scope="row"]{width:150px;color:var(--ink2);font-weight:600;background:#fbf9f4}
.n6n-note{font-size:13px;color:var(--muted);margin-top:14px}
.n6n-case{background:var(--card);border:1px solid var(--line);overflow:hidden}
.n6n-case img{width:100%;aspect-ratio:16/9;object-fit:cover;height:auto}
.n6n-case .n6n-cbody{padding:20px 22px 24px}
.n6n-case .n6n-tag{font-size:11.5px;letter-spacing:.16em;color:var(--teal);display:block;margin-bottom:10px}
.n6n-case h3{font-size:18px;margin-bottom:8px}
.n6n-case p{font-size:13.5px;color:var(--ink2)}
.n6n-news{display:grid;gap:0;border-top:1px solid var(--line)}
.n6n-nitem{display:grid;grid-template-columns:110px minmax(0,1fr) 110px;gap:24px;align-items:baseline;padding:22px 4px;border-bottom:1px solid var(--line);transition:background .16s ease}
.n6n-nitem:hover{background:var(--card)}
.n6n-nitem time{font-family:var(--serif);font-size:14px;color:var(--accent)}
.n6n-nitem h3{font-size:17px;line-height:1.55}
.n6n-nitem p{font-size:13.5px;color:var(--muted);margin-top:6px}
.n6n-nitem span{font-size:12px;color:var(--muted);letter-spacing:.1em;text-align:right}
.n6n-steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:0;border-top:2px solid var(--ink)}
.n6n-step{padding:22px 18px 8px;border-right:1px solid var(--line)}
.n6n-step:last-child{border-right:0}
.n6n-step b{display:block;font-family:var(--serif);font-size:13px;color:var(--accent);letter-spacing:.12em;margin-bottom:8px}
.n6n-step h3{font-size:16px;margin-bottom:4px}
.n6n-step em{display:block;font-style:normal;font-size:11.5px;color:var(--teal);margin-bottom:10px;letter-spacing:.06em}
.n6n-step p{font-size:13px;color:var(--ink2);line-height:1.75}
.n6n-faq{border-top:1px solid var(--line)}
.n6n-qa{padding:22px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:minmax(0,320px) minmax(0,1fr);gap:28px}
.n6n-qa h3{font-size:16px}
.n6n-qa p{font-size:14.5px;color:var(--ink2)}
.n6n-cta{background:var(--ink);color:#f4efe6;padding:64px 0}
.n6n-cta .n6n-shead h2,.n6n-cta .n6n-shead p{color:#f4efe6}
.n6n-cta .n6n-shead .n6n-idx{color:#e0a07c}
.n6n-cta .n6n-btn{background:var(--accent);border-color:var(--accent);color:#fff}
.n6n-cta .n6n-btn-ghost{background:transparent;border-color:#f4efe6;color:#f4efe6}
.n6n-meta{display:flex;flex-wrap:wrap;gap:18px;font-size:13px;color:var(--muted);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:12px 0;margin:24px 0 0}
.n6n-crumbs{font-size:12.5px;color:var(--muted);padding:18px 0}
.n6n-crumbs a{color:var(--ink2);border-bottom:1px dotted var(--line);margin-right:18px}
.n6n-crumbs span{color:var(--ink2)}
.n6n-pagehead{padding:56px 0 20px;border-bottom:1px solid var(--line)}
.n6n-pagehead h1{font-size:clamp(28px,3.4vw,42px);max-width:20em}
.n6n-pagehead .n6n-lede{margin-top:18px}
.n6n-article{padding:52px 0 64px}
.n6n-artgrid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start}
.n6n-prose p{margin-bottom:20px;font-size:16px;color:var(--ink2);line-height:1.95}
.n6n-prose h2{font-size:24px;margin:38px 0 16px;padding-top:18px;border-top:1px solid var(--line)}
.n6n-prose h3{font-size:17px;margin:26px 0 10px;color:var(--ink)}
.n6n-aside{background:var(--card);border:1px solid var(--line);padding:24px}
.n6n-aside h2{font-size:16px;margin-bottom:14px}
.n6n-aside ul{display:grid;gap:12px}
.n6n-aside li{font-size:13.5px;color:var(--ink2);line-height:1.7}
.n6n-aside a{border-bottom:1px solid var(--line);display:inline}
.n6n-facts{background:var(--card);border-left:3px solid var(--accent);padding:20px 24px;margin:26px 0}
.n6n-facts h2{font-size:15px;margin-bottom:10px;letter-spacing:.08em}
.n6n-facts li{font-size:14px;color:var(--ink2);padding:5px 0}
.n6n-pager{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:34px;padding-top:20px;font-size:14px}
.n6n-pager a{color:var(--accent);max-width:48%}
.n6n-pagelist{display:flex;gap:8px;align-items:center;margin-top:34px;font-size:14px}
.n6n-pagelist a,.n6n-pagelist span{border:1px solid var(--line);padding:7px 13px;color:var(--ink2)}
.n6n-pagelist a:hover{border-color:var(--ink);color:var(--ink)}
.n6n-pagelist .n6n-on{background:var(--ink);color:#fbf8f2;border-color:var(--ink)}
.n6n-footer{background:#141f29;color:#cfc9bd;padding:56px 0 30px}
.n6n-fgrid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1fr;gap:36px}
.n6n-footer h3{font-size:14px;color:#f1ebdf;letter-spacing:.12em;margin-bottom:14px}
.n6n-footer li{font-size:13px;line-height:2;color:#b8b2a6}
.n6n-footer a:hover{color:#f1ebdf}
.n6n-footer p{font-size:13px;color:#a9a398;line-height:1.9}
.n6n-fbot{border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:18px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12px;color:#8d877c}
.n6n-note404{padding:96px 0 110px;text-align:left}
.n6n-note404 h1{font-size:clamp(34px,5vw,58px);margin-bottom:18px}
.n6n-note404 p{color:var(--ink2);margin-bottom:26px}
.n6n-catalog{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.n6n-cat{background:var(--card);border:1px solid var(--line);padding:24px}
.n6n-cat img{width:100%;aspect-ratio:16/9;object-fit:cover;height:auto;margin-bottom:16px}
.n6n-cat .n6n-tag{font-size:11.5px;letter-spacing:.16em;color:var(--accent);display:block;margin-bottom:8px}
.n6n-cat h3{font-size:18px;margin-bottom:8px}
.n6n-cat p{font-size:13.5px;color:var(--ink2)}
.n6n-kv{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:28px 0}
.n6n-kv div{padding:16px 18px;border-right:1px solid var(--line)}
.n6n-kv div:last-child{border-right:0}
.n6n-kv b{display:block;font-family:var(--serif);font-size:22px}
.n6n-kv span{font-size:12px;color:var(--muted);letter-spacing:.08em}
.n6n-survey{border:1px solid var(--line);background:var(--card);padding:26px 28px}
.n6n-survey dl{display:grid;gap:14px}
.n6n-survey dt{font-size:13px;color:var(--accent);letter-spacing:.08em}
.n6n-survey dd{margin:0;font-size:15px;color:var(--ink2)}

@media (max-width:1024px){
.n6n-hero-grid{grid-template-columns:minmax(0,1fr);gap:34px}
.n6n-grid4{grid-template-columns:repeat(2,minmax(0,1fr))}
.n6n-grid3{grid-template-columns:repeat(2,minmax(0,1fr))}
.n6n-steps{grid-template-columns:repeat(3,minmax(0,1fr))}
.n6n-step{border-bottom:1px solid var(--line)}
.n6n-artgrid{grid-template-columns:minmax(0,1fr)}
.n6n-aside{order:-1}
.n6n-fgrid{grid-template-columns:repeat(2,minmax(0,1fr))}
.n6n-catalog{grid-template-columns:repeat(2,minmax(0,1fr))}
.n6n-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
.n6n-stat{border-bottom:1px solid var(--line)}
}
@media (max-width:768px){
.n6n-nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--paper);border-bottom:1px solid var(--line);padding:8px 16px 14px;flex-direction:column;align-items:stretch;max-height:70vh;overflow-y:auto}
.n6n-nav.n6n-open{display:flex}
.n6n-nav a{padding:12px 8px;border-bottom:1px solid var(--line);font-size:15px}
.n6n-navbtn{display:inline-block}
.n6n-shead{grid-template-columns:minmax(0,1fr);gap:6px}
.n6n-qa{grid-template-columns:minmax(0,1fr);gap:10px}
.n6n-steps{grid-template-columns:repeat(2,minmax(0,1fr))}
.n6n-nitem{grid-template-columns:90px minmax(0,1fr);gap:12px}
.n6n-nitem span{display:none}
.n6n-kv{grid-template-columns:repeat(2,minmax(0,1fr))}
.n6n-artfig{margin:0 0 26px}
.n6n-artfig img{width:100%;height:auto;border:1px solid var(--line)}
.n6n-artfig figcaption{margin-top:8px;font-size:12.5px;color:var(--muted)}
.n6n-statnote{display:block;font-size:12.5px;line-height:1.6;color:var(--muted);margin-top:6px}
.n6n-stat b{font-size:28px}
.n6n-section{padding:52px 0}
.n6n-cta{padding:48px 0}
.n6n-table{min-width:640px}
}
@media (max-width:520px){
.n6n-shell{padding:0 16px}
.n6n-head{padding:12px 16px}
.n6n-brand img{width:38px;height:38px;flex-basis:38px}
.n6n-brand span{font-size:15px}
.n6n-grid4,.n6n-grid3,.n6n-grid2,.n6n-catalog,.n6n-steps{grid-template-columns:minmax(0,1fr)}
.n6n-stat{padding:18px 16px}
.n6n-shead h2{font-size:22px}
.n6n-table{min-width:560px}
.n6n-hero{padding-top:40px}
.n6n-artgrid{gap:30px}
.n6n-pager{flex-direction:column}
.n6n-footer{padding:40px 0 24px}
}
@media (max-width:380px){
.n6n-shell{padding:0 12px}
.n6n-nitem{grid-template-columns:minmax(0,1fr)}
.n6n-nitem time{font-size:12.5px}
.n6n-kv{grid-template-columns:minmax(0,1fr)}
.n6n-table{min-width:480px}
.n6n-artfig{margin:0 0 26px}
.n6n-artfig img{width:100%;height:auto;border:1px solid var(--line)}
.n6n-artfig figcaption{margin-top:8px;font-size:12.5px;color:var(--muted)}
.n6n-statnote{display:block;font-size:12.5px;line-height:1.6;color:var(--muted);margin-top:6px}
.n6n-stat b{font-size:24px}
.n6n-actions .n6n-btn{width:100%;text-align:center}
}