:root{--bg:#000;--panel:#0c0c0c;--line:rgba(212,169,58,.35);--gold:#d4a93a;--gold-hi:#f0cd6e;--blue:#28a0eb;--text:#f2f2f2;--muted:#b6b6b6;--wa:#25d366;color-scheme:dark}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.75;font-size:17px;-webkit-font-smoothing:antialiased}
a{color:inherit}
:focus-visible{outline:3px solid var(--gold-hi);outline-offset:3px}
.wrap{width:min(1120px,100% - 40px);margin-inline:auto}
.top{border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;background:rgba(0,0,0,.92);backdrop-filter:blur(8px)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:10px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand span{font-weight:700;letter-spacing:.04em;font-size:15px;color:var(--gold-hi)}
.nav{display:flex;gap:22px;font-size:15px}
.nav a{text-decoration:none;color:var(--muted)}
.nav a:hover{color:var(--gold-hi)}
.btn{display:inline-flex;align-items:center;gap:10px;padding:12px 22px;border-radius:999px;font-weight:700;text-decoration:none;font-size:16px;line-height:1.2;border:2px solid transparent;min-height:46px}
.btn svg{width:22px;height:22px;flex:none}
.btn-wa{background:var(--wa);color:#04210f}
.btn-wa:hover{background:#3be57c}
.btn-line{border-color:var(--gold);color:var(--gold-hi)}
.btn-line:hover{background:rgba(212,169,58,.12)}
.hero{padding:40px 0 18px}
.video-frame{position:relative;border-top:3px solid var(--gold);border-bottom:3px solid var(--gold);background:#000;aspect-ratio:16/9;overflow:hidden}
.video-frame video{width:100%;height:100%;display:block;object-fit:cover}
.pp{position:absolute;right:12px;bottom:12px;background:rgba(0,0,0,.65);color:var(--text);border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:14px;cursor:pointer}
.hero-copy{max-width:760px;margin:40px auto 0;text-align:center}
.hero-copy h1{font-size:clamp(30px,5vw,48px);line-height:1.25;color:var(--gold-hi);letter-spacing:.04em}
.hero-copy .en{color:var(--blue);font-size:clamp(14px,2vw,17px);letter-spacing:.08em;margin-top:6px}
.hero-copy p.lead{margin-top:22px;font-size:18px}
.hero-copy p.lead-en{margin-top:8px;color:var(--muted);font-size:15px}
.cta{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:30px}
section{padding:64px 0}
.sec-title{font-size:clamp(26px,3.6vw,34px);color:var(--gold-hi);letter-spacing:.04em;line-height:1.3}
.sec-title small{display:block;color:var(--blue);font-size:15px;font-weight:400;letter-spacing:.08em;margin-top:4px}
.services{margin-top:34px;display:grid;grid-template-columns:1fr 1fr;column-gap:56px}
.svc{padding:22px 0 22px 30px;border-top:1px solid var(--line);position:relative}
.svc::before{content:"";position:absolute;left:0;top:34px;width:12px;height:12px;border-radius:50%;background:var(--gold)}
.svc h3{font-size:23px;line-height:1.3}
.svc .en{color:var(--blue);font-size:14px;letter-spacing:.06em}
.svc p{margin-top:8px;color:var(--muted);font-size:16px;max-width:46ch}
.svc p.pen{margin-top:4px;font-size:14px;opacity:.85}
.services .svc:nth-last-child(-n+2){border-bottom:1px solid var(--line)}
.approach{background:var(--panel);border-block:1px solid var(--line)}
.approach .wrap>*{max-width:820px}
.approach p{margin-top:20px;font-size:19px;line-height:1.9}
.approach p+p{color:var(--muted);font-size:17px}
.banner{margin-top:30px;border:1px solid var(--line)}
.banner img{width:100%;display:block}
.contact-grid{margin-top:30px;display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:start}
.contact-list{list-style:none}
.contact-list li{padding:16px 0;border-top:1px solid var(--line)}
.contact-list li:last-child{border-bottom:1px solid var(--line)}
.contact-list .k{display:block;color:var(--blue);font-size:14px;letter-spacing:.06em}
.contact-list .v{font-size:20px;font-weight:600}
.contact-list a{text-decoration:none}
.contact-list a:hover{color:var(--gold-hi)}
.contact-cta p{color:var(--muted);margin-bottom:22px;max-width:42ch}
.contact-cta .btn{margin-right:10px;margin-bottom:12px}
footer{border-top:3px solid var(--gold);padding:34px 0 90px}
footer .wrap{display:grid;gap:6px;color:var(--muted);font-size:15px}
footer strong{color:var(--text);letter-spacing:.04em}
footer a{color:var(--gold-hi)}
.fab{position:fixed;right:18px;bottom:18px;z-index:30;background:var(--wa);color:#04210f;width:60px;height:60px;border-radius:50%;display:grid;place-items:center;box-shadow:0 6px 18px rgba(0,0,0,.6)}
.fab svg{width:32px;height:32px}
@media (max-width:760px){body{font-size:16px}.brand span{font-size:13px}.nav{display:none}.services{grid-template-columns:1fr}.services .svc:nth-last-child(-n+2){border-bottom:0}.services .svc:last-child{border-bottom:1px solid var(--line)}.contact-grid{grid-template-columns:1fr;gap:28px}.top .btn{padding:10px 16px;font-size:15px}section{padding:48px 0}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}