:root{--ink:#0d2135;--ink2:#41566c;--line:#e2e8ef;--bg:#f4f7fa;--card:#fff;--navy:#0e2a47;--teal:#0d8b80;--amber:#e8892b;--radius:14px;--shadow:0 6px 24px rgba(13,33,53,.08)}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;color:var(--ink);background:var(--bg);line-height:1.75;font-size:16px}
a{color:var(--teal);text-decoration:none}
img{max-width:100%}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.topbar{background:var(--navy);color:#cfe0ee;font-size:13.5px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:7px 20px}
.topbar .tl{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar .tr{white-space:nowrap;color:#9db2c6}
.topbar b{color:#fff;font-weight:600}
header.site{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:40}
header.site .wrap{display:flex;align-items:center;gap:14px;padding:10px 20px;min-height:64px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--ink);letter-spacing:.4px;flex:none}
.logo .mark{width:42px;height:36px;border-radius:9px;background:linear-gradient(135deg,var(--navy),var(--teal));color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;letter-spacing:.5px;white-space:nowrap;flex:none}
.logo small{display:block;font-size:11.5px;color:#8798a8;font-weight:400;letter-spacing:0;line-height:1.5;white-space:nowrap}
nav.main{display:flex;gap:1px;flex-wrap:nowrap;margin-left:auto;justify-content:flex-end}
nav.main a{color:var(--ink2);font-size:13px;padding:4px 6px;border-radius:7px;white-space:nowrap}
nav.main a:hover{background:var(--bg);color:var(--ink)}
nav.main a.on{color:var(--teal);font-weight:600}
@media(max-width:1199px){.logo small{display:none}nav.main a{font-size:12.5px;padding:4px 5px}.btn.tel{padding:8px 12px;font-size:14px}.logo{font-size:17px}}
@media(min-width:1200px){nav.main a{font-size:14.5px;padding:6px 9px}}
.zonebar{background:#fff;border-bottom:1px solid var(--line);font-size:13.5px}
.zonebar .wrap{display:flex;align-items:center;gap:2px;padding:7px 20px;flex-wrap:wrap}
.zonebar .zlabel{color:#8798a8;margin-right:8px;white-space:nowrap}
.zonebar a{color:var(--ink2);padding:3px 9px;border-radius:7px;text-decoration:none;white-space:nowrap}
.zonebar a:hover{background:var(--bg);color:var(--ink)}
.head-cta{display:flex;align-items:center;gap:10px;flex:none}
.line-tag{font-size:12.5px;color:#5b7285;font-weight:600;letter-spacing:.2px;white-space:nowrap}
@media(max-width:1240px){.topbar .tr{display:none}}
.btn{display:inline-block;padding:10px 18px;border-radius:10px;font-weight:600;font-size:15px;border:1px solid transparent;cursor:pointer}
.btn.tel{background:var(--amber);color:#fff;white-space:nowrap;padding:9px 16px}
.btn.ghost{background:#fff;color:var(--teal);border-color:var(--teal)}
.btn.dark{background:var(--navy);color:#fff}
.hero{background:linear-gradient(160deg,#0b2338,#14405f 55%,#0d6b63);color:#fff;padding:56px 0 48px}
.hero h1{font-size:34px;line-height:1.35;margin:0 0 14px;letter-spacing:.5px}
.hero p.sub{color:#c8dce8;max-width:820px;margin:0 0 22px;font-size:16.5px}
.hero .btns{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:22px}
.hero .chips{display:flex;gap:10px;flex-wrap:wrap}
.chip{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);padding:6px 12px;border-radius:999px;font-size:13.5px;color:#e6f1f6}
section{padding:44px 0}
section.tight{padding:30px 0}
.sec-head{margin-bottom:22px}
.sec-head h2{font-size:24px;margin:0 0 8px}
.sec-head p{color:var(--ink2);margin:0;font-size:15px}
.grid{display:grid;gap:16px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.card h3{margin:0 0 8px;font-size:18px}
.card p{color:var(--ink2);margin:0 0 12px;font-size:14.8px}
.card .price{color:var(--amber);font-weight:700;font-size:15px}
.card a.more{font-size:14px;font-weight:600}
.ico{width:42px;height:42px;border-radius:11px;background:#e8f4f2;color:var(--teal);display:flex;align-items:center;justify-content:center;font-size:19px;margin-bottom:12px;font-weight:700}
.factbar{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:-26px}
.factbar .f{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;box-shadow:var(--shadow)}
.factbar .f b{display:block;font-size:20px;color:var(--navy)}
.factbar .f span{font-size:13px;color:var(--ink2)}
article.post{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px 38px;box-shadow:var(--shadow)}
article.post h1{font-size:27px;line-height:1.45;margin:0 0 14px}
.meta{font-size:13px;color:#8798a8;margin-bottom:18px;display:flex;gap:14px;flex-wrap:wrap}
.answer{background:#f0f7f6;border-left:4px solid var(--teal);padding:16px 18px;border-radius:0 10px 10px 0;margin:0 0 24px;font-size:15.6px}
.answer strong{color:var(--navy)}
article.post h2{font-size:20px;margin:32px 0 12px;padding-left:11px;border-left:4px solid var(--amber)}
article.post h3{font-size:17px;margin:22px 0 8px}
article.post p{margin:0 0 14px;color:#20364b}
article.post ul,ol{margin:0 0 16px;padding-left:22px;color:#20364b}
article.post li{margin-bottom:8px}
table{border-collapse:collapse;width:100%;margin:6px 0 20px;font-size:14.5px}
th,td{border:1px solid var(--line);padding:10px 12px;text-align:left}
th{background:#f2f6fa;font-weight:600;color:var(--navy)}
.note{background:#fff8ee;border:1px solid #f3dcbb;border-radius:10px;padding:14px 16px;font-size:14.5px;color:#7a5320;margin:0 0 20px}
.faq{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:10px 22px;box-shadow:var(--shadow)}
details{border-bottom:1px solid var(--line);padding:14px 0}
details:last-child{border-bottom:0}
details summary{cursor:pointer;font-weight:600;font-size:16px;list-style:none;display:flex;justify-content:space-between;gap:14px}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"＋";color:var(--teal);font-weight:700}
details[open] summary::after{content:"－"}
details p{margin:10px 0 0;color:#2b4257;font-size:15px}
.cta{background:linear-gradient(135deg,#12314f,#0d6f66);color:#fff;border-radius:18px;padding:30px 34px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;margin:34px 0 10px}
.cta h3{margin:0 0 6px;font-size:21px}
.cta p{margin:0;color:#cbe3e8;font-size:14.5px}
.crumbs{font-size:13.5px;color:#8798a8;margin:18px 0 0}
.crumbs a{color:#8798a8}
.crumbs span{color:#5d7486}
.linklist{display:flex;flex-wrap:wrap;gap:10px}
.linklist a{background:#fff;border:1px solid var(--line);border-radius:8px;padding:7px 12px;font-size:14px}
.relbox{margin:30px 0 0;padding-top:22px;border-top:1px dashed var(--line)}
.relbox h3{font-size:16px;margin:0 0 10px}
footer.site{background:#0b1e30;color:#9fb6c8;padding:40px 0 26px;margin-top:20px;font-size:14px}
footer.site .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px}
footer.site h4{color:#fff;font-size:15px;margin:0 0 10px}
footer.site a{color:#9fb6c8}
footer.site .bottom{border-top:1px solid #1b3448;margin-top:24px;padding-top:16px;font-size:12.5px;color:#7d97ac;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.mbar{display:none}
.aicite{background:#f6fbfa;border:1px solid #d6ece9;border-left:4px solid var(--teal);border-radius:12px;padding:16px 18px;margin:18px 0 22px;font-size:14px;color:#41566c}
.aicite-h{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.aicite-h .tag{background:var(--teal);color:#fff;font-size:12px;font-weight:600;padding:2px 8px;border-radius:6px;white-space:nowrap}
.aicite-h b{color:var(--ink);font-size:14.5px}
.aicite-c{margin:6px 0 10px;color:#0d2135;line-height:1.75}
.aicite-f{margin:0 0 10px;padding-left:18px}
.aicite-f li{margin:3px 0;font-size:13.5px}
.aicite-q{margin:0;font-size:12.8px;color:#5b7285;word-break:break-all}
.brandline{font-size:14px;color:#41566c;background:#fff;border:1px dashed var(--line);border-radius:10px;padding:10px 14px;margin:0 0 18px}
.route{color:#41566c;font-size:14.6px;margin:6px 0 0}
.srcline{background:#fbfdfe;border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin:20px 0 8px;font-size:13.4px;color:#41566c;line-height:1.8}
.srcline h2{font-size:16px;margin:0 0 8px;color:var(--ink)}
.srcline p{margin:4px 0}
@media(max-width:900px){
 header.site .wrap{flex-wrap:wrap;min-height:0;padding:8px 12px 0;gap:0}
 nav.main{display:flex;flex-wrap:nowrap;overflow-x:auto;width:100%;margin:2px 0 0;padding:6px 0 8px;gap:4px;justify-content:flex-start;scrollbar-width:none;-ms-overflow-style:none}
 nav.main::-webkit-scrollbar{display:none}
 nav.main a{flex:none;font-size:13px;padding:5px 10px;background:#f4f7fa;border-radius:16px;color:#41566c}
 nav.main a.on{background:#e9f5f3;color:var(--teal)}
 .head-cta{display:none}
 .zonebar{font-size:12.5px}
 .zonebar .wrap{flex-wrap:nowrap;overflow-x:auto;padding:6px 12px;gap:4px;scrollbar-width:none;-ms-overflow-style:none;touch-action:pan-x}
 .zonebar .wrap::-webkit-scrollbar{display:none}
 .zonebar a,.zonebar .zlabel{flex:none}
 .zonebar a{padding:6px 10px}
 .topbar{font-size:12px}
 .topbar .wrap{padding:6px 12px;gap:8px}
 .topbar .tl{white-space:normal;overflow:visible;text-overflow:clip}
 table{font-size:13px}
 th,td{padding:8px 8px}
 .g3,.g2,.g4,.factbar{grid-template-columns:1fr}
 .hero h1{font-size:26px}
 article.post{padding:24px 18px}
 footer.site .cols{grid-template-columns:1fr}
 .mbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:60;background:#fff;border-top:1px solid var(--line);box-shadow:0 -4px 16px rgba(0,0,0,.06)}
 .mbar a{flex:1;text-align:center;padding:12px 0;font-size:15px;font-weight:600}
 .mbar a.t{background:var(--amber);color:#fff}
 .mbar a.w{border-left:1px solid var(--line);color:var(--teal)}
 body{padding-bottom:56px}
}
@media(max-width:520px){.hero{padding:36px 0 32px}.hero h1{font-size:22px}section{padding:30px 0}.topbar{font-size:11.5px}.topbar .wx{display:none}.topbar .tl{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}}
@media(max-width:600px){.hero h1{font-size:19px!important;line-height:1.5}.hero .sub{font-size:13px;line-height:1.7}.hero .btns{margin-top:14px}.aicite{padding:12px 13px;font-size:13px}.aicite-q{font-size:11.8px}}