:root{--blue:#3783A9;--blue-d:#276A8C;--navy:#0E2A3F;--sky:#EAF4FA;--cyan:#5BC8F0;--gray:#F5F7FA;--text:#1F2937;--muted:#6B7280;--line:#E5E7EB;--radius:12px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
html.i18n-wait body{visibility:hidden}
body{font-family:"Segoe UI","Hiragino Sans","Noto Sans JP",Meiryo,sans-serif;color:var(--text);line-height:1.8;background:#fff}
html:lang(zh-CN) body{font-family:"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif}
html:lang(zh-TW) body{font-family:"Segoe UI","PingFang TC","Microsoft JhengHei","Noto Sans TC",sans-serif}
a{color:var(--blue);text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1160px,92%);margin:auto}
header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.95);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px}
.logo img{height:38px;width:auto}
.menu{display:flex;gap:24px;align-items:center;list-style:none}
.menu a{color:var(--text);font-size:.92rem;font-weight:600;white-space:nowrap}
.menu a:hover,.menu a.active{color:var(--blue)}
.nav-right{display:flex;align-items:center;gap:14px}
.lang{position:relative;display:flex;align-items:center}
.lang svg{position:absolute;left:10px;width:16px;height:16px;stroke:var(--blue);fill:none;stroke-width:2;pointer-events:none}
.lang select{appearance:none;-webkit-appearance:none;border:1px solid var(--line);background:#fff;border-radius:999px;padding:7px 30px 7px 32px;font:inherit;font-size:.85rem;font-weight:600;color:var(--navy);cursor:pointer;background-image:linear-gradient(45deg,transparent 50%,var(--blue) 50%),linear-gradient(135deg,var(--blue) 50%,transparent 50%);background-position:calc(100% - 15px) 50%,calc(100% - 10px) 50%;background-size:5px 5px;background-repeat:no-repeat}
.lang select:focus{outline:2px solid var(--blue)}
.btn{display:inline-block;background:var(--blue);color:#fff!important;padding:12px 28px;border-radius:999px;font-weight:600;transition:.2s;border:0;cursor:pointer;font-size:.95rem}
.btn:hover{background:var(--blue-d);transform:translateY(-2px)}
.btn.outline{background:transparent;border:2px solid #fff}
.btn.outline:hover{background:#fff;color:var(--blue)!important}
.btn.white{background:#fff;color:var(--blue)!important}
.hamburger{display:none;background:none;border:0;font-size:1.8rem;cursor:pointer;color:var(--navy)}
.hero{padding:160px 0 130px;color:#fff;position:relative;overflow:hidden;background:radial-gradient(circle at 80% 30%,rgba(91,200,240,.25),transparent 45%),linear-gradient(135deg,var(--navy) 0%,var(--blue-d) 55%,var(--blue) 100%)}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:48px 48px;-webkit-mask-image:linear-gradient(to bottom,#000,transparent);mask-image:linear-gradient(to bottom,#000,transparent)}
.hero .container{display:grid;grid-template-columns:1.3fr 1fr;align-items:center;gap:40px;position:relative;z-index:1}
.hero .tag{display:inline-block;border:1px solid rgba(255,255,255,.5);padding:4px 14px;border-radius:999px;font-size:.85rem;margin-bottom:20px}
.hero h1{font-size:clamp(2rem,4.2vw,3.2rem);line-height:1.35;margin-bottom:20px}
.hero h1 em{font-style:normal;color:var(--cyan)}
.hero p{max-width:640px;opacity:.92;margin-bottom:36px}
.hero .actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-mark{justify-self:center}
.hero-mark img{width:min(330px,70vw);border-radius:50%;background:#fff;padding:10px;box-shadow:0 0 0 14px rgba(255,255,255,.12),0 0 0 34px rgba(255,255,255,.06),0 30px 80px rgba(0,0,0,.4);animation:float 6s ease-in-out infinite}
@keyframes float{50%{transform:translateY(-14px)}}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:-60px;position:relative;z-index:2}
.stats div{background:#fff;border-radius:var(--radius);padding:24px;text-align:center;box-shadow:0 10px 30px rgba(11,36,64,.1)}
.stats b{display:block;font-size:1.7rem;color:var(--blue)}
.stats span{color:var(--muted);font-size:.85rem}
.page-hero{padding:136px 0 56px;background:linear-gradient(135deg,var(--navy),var(--blue));color:#fff;position:relative;overflow:hidden}
.page-hero::after{content:"";position:absolute;right:4%;top:50%;transform:translateY(-50%);width:240px;height:240px;background:url(img/logo-mark.png) center/contain no-repeat;opacity:.15}
.page-hero .en{font-size:.9rem;letter-spacing:.2em;opacity:.8}
.page-hero h1{font-size:2.2rem;position:relative;z-index:1}
section{padding:90px 0}
.bg-gray{background:var(--gray)}
.sec-title{text-align:center;margin-bottom:56px}
.sec-title .en{color:var(--blue);font-weight:700;letter-spacing:.2em;font-size:.85rem}
.sec-title h2{font-size:clamp(1.6rem,3vw,2.2rem);color:var(--navy)}
.sec-title p{color:var(--muted);margin-top:8px}
.grid{display:grid;gap:28px}
.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px;transition:.25s}
.card:hover{box-shadow:0 12px 32px rgba(55,131,169,.14);transform:translateY(-4px);border-color:transparent}
.card h3{color:var(--navy);margin:14px 0 8px;font-size:1.12rem}
.card p{color:var(--muted);font-size:.93rem}
.icon{width:56px;height:56px;border-radius:14px;background:var(--sky);display:grid;place-items:center}
.icon svg{width:28px;height:28px;stroke:var(--blue);fill:none;stroke-width:2}
.more{display:inline-block;margin-top:14px;font-weight:600;font-size:.9rem;color:var(--blue)}
.more::after{content:" →"}
.mvv .card{text-align:center;border-top:4px solid var(--blue)}
.mvv .en{color:var(--blue);font-weight:700;letter-spacing:.15em}
.case .thumb{height:170px;border-radius:10px;background:linear-gradient(135deg,var(--blue),var(--cyan));margin-bottom:16px;display:grid;place-items:center;color:#fff;font-weight:700;font-size:1.1rem;text-align:center;padding:10px}
.label{display:inline-block;background:var(--sky);color:var(--blue);font-size:.75rem;padding:2px 10px;border-radius:999px;font-weight:600;margin-right:6px}
.news li{list-style:none;border-bottom:1px solid var(--line);padding:18px 0;display:flex;gap:24px;flex-wrap:wrap;align-items:center}
.news time{color:var(--muted);min-width:100px}
.cta{background:linear-gradient(135deg,var(--blue-d),var(--blue));color:#fff;text-align:center}
.cta h2{font-size:1.9rem;margin-bottom:12px}
.cta p{opacity:.9;margin-bottom:28px}
.info{width:100%;border-collapse:collapse;background:#fff}
.info th,.info td{border-bottom:1px solid var(--line);padding:18px 20px;text-align:left;vertical-align:top}
.info th{width:200px;color:var(--navy);background:var(--sky)}
.about-logo{display:flex;justify-content:center;margin:0 0 32px}.about-logo img{width:260px}
.svc{display:grid;grid-template-columns:1fr 1.4fr;gap:48px;align-items:center;padding:48px 0;border-bottom:1px solid var(--line)}
.svc:nth-child(even) .svc-visual{order:2}
.svc-visual{height:260px;border-radius:var(--radius);background:linear-gradient(135deg,var(--navy),var(--blue));display:grid;place-items:center;color:#fff;font-size:1.5rem;font-weight:700;text-align:center;padding:20px}
.svc h3{font-size:1.5rem;color:var(--navy);margin-bottom:12px}
.svc ul{padding-left:1.2em;color:var(--muted);margin-top:10px}
.flow{counter-reset:s;display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.flow div{background:#fff;border-radius:var(--radius);padding:24px 16px;text-align:center;border:1px solid var(--line)}
.flow div::before{counter-increment:s;content:"STEP " counter(s);display:block;color:var(--blue);font-weight:700;font-size:.8rem}
.flow h3{font-size:1rem;color:var(--navy)}
.forms-wrap{max-width:820px;margin:auto;background:#fff;border-radius:var(--radius);box-shadow:0 10px 30px rgba(11,36,64,.08);overflow:hidden}
.forms-wrap iframe{width:100%;height:1100px;border:0;display:block}
.notice{max-width:820px;margin:0 auto 28px;background:var(--sky);border-left:4px solid var(--blue);padding:12px 18px;border-radius:6px;font-size:.9rem}
.notice:empty{display:none}
.post-card{color:inherit;display:block}.post-card img{border-radius:8px;margin-bottom:14px;aspect-ratio:16/9;object-fit:cover;width:100%}
.article{max-width:820px}.article .meta{color:var(--muted);margin-bottom:24px}
.article h2,.article h3{color:var(--navy);margin:36px 0 12px}.article p{margin:0 0 16px}.article img{border-radius:8px;margin:20px auto;height:auto}
.article ul,.article ol{padding-left:1.4em;margin:0 0 16px}.article table{border-collapse:collapse;width:100%;margin:16px 0}.article td,.article th{border:1px solid var(--line);padding:8px 12px}
.policy h3{margin-top:28px;color:var(--navy)}
footer{background:var(--navy);color:#CBD5E1;padding:60px 0 24px;font-size:.9rem}
.foot{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:40px}
.logo-f img{height:44px;margin-bottom:12px}
footer a{color:#CBD5E1}footer a:hover{color:#fff}
footer ul{list-style:none}
.copy{border-top:1px solid rgba(255,255,255,.15);padding-top:20px;text-align:center;font-size:.8rem}
.fade{opacity:0;transform:translateY(24px);transition:.7s}
.fade.show{opacity:1;transform:none}
@media(max-width:1100px){.menu{gap:16px}.menu a{font-size:.85rem}}
@media(max-width:960px){
 .g3,.g4{grid-template-columns:repeat(2,1fr)}
 .flow{grid-template-columns:1fr 1fr}
 .svc{grid-template-columns:1fr}.svc:nth-child(even) .svc-visual{order:0}
 .foot{grid-template-columns:1fr}
 .hamburger{display:block}
 .menu{position:fixed;top:72px;left:0;right:0;background:#fff;flex-direction:column;padding:24px;gap:18px;display:none;border-bottom:1px solid var(--line)}
 .menu.open{display:flex}
 .hero .container{grid-template-columns:1fr;text-align:center}.hero p{margin-inline:auto}.hero .actions{justify-content:center}.hero-mark img{width:220px}
 .stats{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:600px){.g2,.g3,.g4{grid-template-columns:1fr}.info th{width:110px}section{padding:64px 0}.hero h1{font-size:1.75rem}.hero{padding-top:120px}.logo img{height:30px}.lang select{padding:6px 24px 6px 28px;font-size:.78rem}.forms-wrap iframe{height:1300px}}
/* case study */
.case-lead{max-width:860px;margin:0 auto 36px;text-align:center;color:var(--muted)}
.case-sum{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:48px}
.case-sum div{background:var(--sky);border-radius:var(--radius);padding:20px}
.case-sum b{display:block;color:var(--blue);font-size:.8rem;letter-spacing:.1em;margin-bottom:4px}
.case-sum span{font-size:.9rem;color:var(--navy);font-weight:600;line-height:1.6}
.case-filter{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-bottom:36px}
.case-filter button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 20px;font:inherit;font-size:.88rem;font-weight:600;color:var(--navy);cursor:pointer;transition:.2s}
.case-filter button:hover{border-color:var(--blue);color:var(--blue)}
.case-filter button.on{background:var(--blue);border-color:var(--blue);color:#fff}
.case-card{padding:0;overflow:hidden;display:flex;flex-direction:column}
.case-card.hide{display:none}
.case-head{display:flex;align-items:center;gap:10px;padding:16px 24px;color:#fff;font-weight:700;font-size:.92rem}
.case-head svg{width:22px;height:22px;stroke:#fff;fill:none;stroke-width:2;flex:none}
.case-head em{margin-left:auto;font-style:normal;font-weight:500;font-size:.8rem;opacity:.85;white-space:nowrap}
.case-erp{background:linear-gradient(135deg,var(--navy),var(--blue))}
.case-crm{background:linear-gradient(135deg,var(--blue-d),#4FA3C8)}
.case-pp{background:linear-gradient(135deg,#1E5A7A,#5BC8F0)}
.case-body{padding:24px 28px 28px}
.case-body h3{margin:10px 0 10px;font-size:1.12rem;line-height:1.55}
.case-ov{color:var(--text)!important;font-size:.92rem}
.case-what{margin-top:18px;font-weight:700;color:var(--navy)!important;font-size:.85rem}
.case-pts{list-style:none;margin-top:6px}
.case-pts li{position:relative;padding-left:20px;font-size:.9rem;color:var(--muted);margin:4px 0}
.case-pts li::before{content:"";position:absolute;left:2px;top:.62em;width:8px;height:8px;border-radius:2px;background:var(--blue)}
.case-tech{margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);font-size:.8rem!important}
.case-tech b{color:var(--blue);margin-right:10px}
.case-note{margin-top:36px;text-align:center;font-size:.82rem;color:var(--muted)}
@media(max-width:960px){.case-sum{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.case-sum{grid-template-columns:1fr}}
/* case v2 */
.case-head span{font-size:1rem}
.case-head em{font-size:.82rem}
.case-list{display:grid;gap:32px}
.case-full .case-body{padding:32px 40px 36px}
.case-full h3{font-size:1.4rem;line-height:1.6;margin:0 0 18px}
.case-k{font-weight:700;color:var(--blue)!important;font-size:.85rem;letter-spacing:.05em}
.case-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:22px 0 26px}
.case-meta div{background:var(--gray);border-radius:8px;padding:12px 16px}
.case-meta dt{font-size:.75rem;color:var(--blue);font-weight:700}
.case-meta dd{font-size:.88rem;color:var(--navy);font-weight:600;line-height:1.6}
.ba{display:grid;grid-template-columns:1fr auto 1fr;gap:16px;align-items:stretch}
.ba>div:not(.ba-arrow){border-radius:10px;padding:20px 22px}
.ba h4{font-size:.95rem;margin-bottom:8px}
.ba ul{list-style:none}
.ba li{position:relative;padding-left:24px;font-size:.9rem;margin:6px 0;line-height:1.7}
.ba-before{background:#F6F7F9;border:1px solid var(--line)}
.ba-before h4{color:#6B7280}
.ba-before li::before{content:"✕";position:absolute;left:2px;color:#9CA3AF;font-weight:700}
.ba-after{background:var(--sky);border:1px solid #CFE4F0}
.ba-after h4{color:var(--blue)}
.ba-after li::before{content:"✓";position:absolute;left:2px;color:var(--blue);font-weight:700}
.ba-arrow{display:grid;place-items:center;font-size:1.6rem;color:var(--blue);font-weight:700}
@media(max-width:860px){.case-meta{grid-template-columns:1fr}.ba{grid-template-columns:1fr}.ba-arrow{transform:rotate(90deg)}.case-full .case-body{padding:24px}}
.case-card:not(.case-full) h3 br{display:none}
.case-grid{align-items:stretch}
.case-grid .case-body{flex:1;display:flex;flex-direction:column}
.case-grid .case-tech{margin-top:auto}
.case-grid .case-pts{margin-bottom:16px}
.case-head em{font-weight:600}
.more-box{margin-top:48px;background:var(--sky);border-radius:var(--radius);padding:36px 40px;text-align:center}
.more-box h3{color:var(--navy);font-size:1.3rem}
.more-box p{color:var(--muted);margin:6px 0 20px}
.chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.chips span{background:#fff;border:1px solid #CFE4F0;color:var(--navy);border-radius:999px;padding:6px 16px;font-size:.88rem;font-weight:600}
.case-grid .case-body .label{align-self:flex-start}.case-grid h3 br{display:none}
/* card layout (reference image) */
.case-grid{gap:28px}
.case-card{border-radius:14px}
.case-head{padding:18px 26px;font-size:1rem}
.case-head span{font-size:1.02rem;font-weight:700}
.case-head em{font-weight:500;font-size:.88rem;opacity:.9}
.case-grid .case-body{padding:26px 30px 24px}
.case-grid .label{font-size:.75rem;padding:3px 12px;margin-bottom:2px}
.case-grid h3{font-size:1.12rem;line-height:1.6;margin:10px 0 8px;color:var(--navy)}
.case-ov{color:#374151!important;font-size:.92rem;line-height:1.9}
.case-what{margin-top:20px;font-weight:700;color:var(--navy)!important;font-size:.88rem}
.case-pts{margin:8px 0 4px}
.case-pts li{font-size:.9rem;color:#4B5563;padding-left:20px;margin:5px 0}
.case-pts li::before{top:.6em;width:7px;height:7px;border-radius:2px;background:var(--blue)}
.case-pts.bf li::before{background:#9CA3AF}
.case-grid .case-tech{margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);font-size:.82rem!important;color:#6B7280}
.case-grid .case-pts:last-of-type{margin-bottom:18px}
.case-tech b{color:var(--blue);margin-right:10px;font-weight:700}
.case-scope{border-top:1px dashed var(--line)}
.case-scope+.case-tech{margin-top:0;padding-top:6px;border-top:0}
.case-grid .case-pts{margin:8px 0 0}.case-grid .case-pts.bf+.case-what{margin-top:16px}.case-grid .case-pts+.case-tech{margin-top:auto}.case-grid .case-body>.case-tech:first-of-type{margin-top:auto}.case-grid .case-body ul:last-of-type{margin-bottom:20px}