:root{--ink:#141a22;--sub:#5b6775;--line:#e4e9f0;--bg:#f6f8fb;
--navy:#0e3358;--navy2:#1a5590;--red:#b3141f;--gold:#b98a2e;--max:1120px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
color:var(--ink);line-height:1.75;font-size:16px;background:#fff;-webkit-font-smoothing:antialiased}
a{color:var(--navy2);text-decoration:none}a:hover{text-decoration:underline}
img{max-width:100%;display:block}
.wrap{max-width:var(--max);margin:0 auto;padding:0 22px}
header.site{position:sticky;top:0;z-index:99;background:#fff;border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px;gap:20px}
.brand{display:flex;align-items:center;gap:10px}
.brand img{width:40px;height:40px;object-fit:contain}
.brand b{font-size:17px;letter-spacing:.5px;color:var(--navy);display:block;line-height:1.2}
.brand small{font-size:10.5px;letter-spacing:2px;color:var(--sub)}
.nav ul{display:flex;gap:20px;list-style:none;font-size:14.5px}
.nav ul a{color:var(--ink);padding:6px 0;border-bottom:2px solid transparent}
.nav ul a:hover,.nav ul a.on{color:var(--red);border-bottom-color:var(--red);text-decoration:none}
.nav .tel{font-weight:700;color:var(--navy);font-size:15px;white-space:nowrap}
@media(max-width:900px){.nav ul{display:none}.nav .tel{font-size:13px}}
.hero{background:linear-gradient(155deg,#0e3358 0%,#123f6a 46%,#1a5590 100%);color:#fff;padding:72px 0 64px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-120px;top:-60px;width:520px;height:520px;
background:radial-gradient(circle,rgba(255,255,255,.10),transparent 62%);border-radius:50%}
.hero .tag{display:inline-block;border:1px solid rgba(255,255,255,.35);color:#d9e6f5;font-size:13px;
padding:5px 14px;border-radius:99px;margin-bottom:20px}
.hero h1{font-size:clamp(26px,4.2vw,42px);line-height:1.28;letter-spacing:-.6px;margin-bottom:18px}
.hero h1 em{font-style:normal;color:#ffd27a}
.hero p.lead{font-size:17px;color:#cfdff0;max-width:820px;margin-bottom:10px}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px;align-items:center}
.btn{display:inline-block;padding:13px 28px;border-radius:6px;font-weight:600;font-size:15px;transition:.2s}
.btn-r{background:var(--red);color:#fff}.btn-r:hover{background:#8f0f19;text-decoration:none}
.btn-o{border:1px solid rgba(255,255,255,.5);color:#fff}.btn-o:hover{background:rgba(255,255,255,.1);text-decoration:none}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.16);
border:1px solid rgba(255,255,255,.16);border-radius:10px;overflow:hidden;margin-top:40px}
.stat{background:rgba(255,255,255,.06);padding:20px 18px}
.stat b{display:block;font-size:26px;color:#ffd27a;letter-spacing:-.5px}
.stat small{color:#c7d8ea;font-size:12.5px}
@media(max-width:760px){.stats{grid-template-columns:repeat(2,1fr)}}
section{padding:70px 0;border-bottom:1px solid var(--line)}
section.alt{background:var(--bg)}
.kicker{color:var(--red);font-size:12.5px;font-weight:700;letter-spacing:2.5px;margin-bottom:10px}
h2{font-size:clamp(22px,3vw,31px);line-height:1.34;letter-spacing:-.4px;margin-bottom:12px}
h3{font-size:18px;margin-bottom:8px}
.sub{color:var(--sub);margin-bottom:34px;max-width:760px}
.g3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.g2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.g4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
@media(max-width:900px){.g3,.g4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.g3,.g2,.g4{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:26px;transition:.22s}
.card:hover{border-color:#c6d6e8;box-shadow:0 10px 26px rgba(14,51,88,.08);transform:translateY(-2px)}
.card p{color:var(--sub);font-size:14.5px;margin-top:6px}
.card .no{font-size:12px;font-weight:700;color:var(--gold);letter-spacing:1.5px}
.work{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.22s}
.work:hover{box-shadow:0 12px 28px rgba(14,51,88,.1);transform:translateY(-2px)}
.work img{height:190px;width:100%;object-fit:cover}
.work .ph{height:190px;background:linear-gradient(135deg,#0e3358 0%,#17497c 60%,#1a5590 100%);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.work .ph::after{content:"";position:absolute;right:-40px;bottom:-60px;width:180px;height:180px;border:1px solid rgba(255,255,255,.18);border-radius:50%}
.work a.cover{display:block}
.work .more{display:inline-block;margin-top:8px;font-size:12px;color:#b3141f;font-weight:600}
.work .txt a.txtlink{color:inherit;text-decoration:none;display:block}
.work .more a{color:#b3141f}
.work .ph.type{background-size:cover;background-position:center;position:relative}
.work .ph.type::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,22,40,.15) 0%,rgba(8,22,40,.66) 100%)}
.work .ph.type span{position:relative;z-index:2;background:rgba(8,22,40,.45);color:#fff;border-color:rgba(255,255,255,.55);letter-spacing:3px;font-size:15px;padding:8px 20px}
.work .ph span{color:#dbe8f4;font-size:14px;letter-spacing:4px;border:1px solid rgba(255,255,255,.35);padding:7px 18px;border-radius:99px;position:relative;z-index:1}
.work .txt{padding:16px 18px 20px}
.work .cat{font-size:11.5px;color:var(--red);font-weight:700;letter-spacing:1px}
.work h3{font-size:15.5px;margin:6px 0 4px;line-height:1.45}
.work p{font-size:13px;color:var(--sub)}
.clients{display:flex;flex-wrap:wrap;gap:10px}
.clients span{border:1px solid var(--line);background:#fff;border-radius:6px;padding:8px 14px;font-size:13.5px;color:#37424f}
.flow{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.flow .step{border-left:3px solid var(--navy2);padding:4px 0 4px 14px}
.flow .step b{display:block;font-size:14.5px}
.flow .step small{color:var(--sub);font-size:12.5px}
@media(max-width:900px){.flow{grid-template-columns:repeat(2,1fr)}}
table{width:100%;border-collapse:collapse;font-size:14.5px;background:#fff}
th,td{padding:13px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{background:#eaf1f8;color:var(--navy);font-size:13.5px;font-weight:700}
td:last-child{white-space:nowrap;font-weight:600;color:var(--red)}
details{border:1px solid var(--line);border-radius:10px;padding:16px 20px;background:#fff;margin-bottom:10px}
summary{cursor:pointer;font-weight:600;list-style:none;position:relative;padding-right:24px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:0;top:0;color:var(--navy2);font-weight:700}
details[open] summary::after{content:"−"}
details p{margin-top:10px;color:var(--sub);font-size:14.5px}
.pagehead{background:linear-gradient(140deg,#f1f6fb,#fff 70%);padding:52px 0 44px;border-bottom:1px solid var(--line)}
.pagehead h1{font-size:clamp(24px,3.4vw,34px);line-height:1.32;letter-spacing:-.4px;margin-bottom:12px}
.pagehead p{color:var(--sub);max-width:820px}
.crumb{font-size:12.5px;color:#8b97a5;margin-bottom:14px}
.crumb a{color:#8b97a5}
.contact{background:#0e3358;color:#fff;border:0}
.contact .sub{color:#c4d6e8}
.cg{display:grid;grid-template-columns:1fr 1fr;gap:36px}
@media(max-width:860px){.cg{grid-template-columns:1fr}}
.contact dt{color:#93b6d6;font-size:12.5px;margin-top:16px}
.contact dd{font-size:17px;font-weight:600}
.contact a{color:#fff;text-decoration:underline}
footer{padding:34px 0;font-size:13px;color:var(--sub);line-height:2}
footer .wrap{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
footer b{color:var(--navy)}
.note{font-size:13px;color:var(--sub);margin-top:14px}
.kv{border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff;margin-top:6px}
.kv-row{display:flex;border-bottom:1px solid var(--line)}
.kv-row:last-child{border-bottom:0}
.kv-row b{flex:0 0 158px;background:#eaf1f8;color:var(--navy);font-size:13.5px;padding:13px 14px}
.kv-row span{flex:1;padding:13px 14px;font-size:14.5px;color:#37424f}
@media(max-width:620px){.kv-row{flex-direction:column}.kv-row b{flex:none;padding:8px 14px 2px}}
.casehero{width:100%;max-height:430px;object-fit:cover;border-radius:14px;box-shadow:0 14px 40px rgba(14,51,88,.14);display:block}
.quote{border-left:3px solid var(--gold);background:#fbf7ee;padding:16px 20px;border-radius:0 8px 8px 0;color:#5a4a2a;font-size:14.5px}