/* Neon Genesis Tokyo — corporate site
   Layout: fixed-width editorial column; hero over photo, then alternating text/photo bands; deliberate single light theme */
:root{
  --ink:#0E1A2B;        /* deep navy: text, header, footer */
  --ink-2:#2B3A50;      /* secondary text */
  --muted:#5E6B7D;
  --paper:#FFFFFF;
  --mist:#F3F4F6;       /* section ground */
  --line:#DDE1E7;
  --gold:#A9884F;       /* single accent, used sparingly */
  --gold-soft:#F4EEE3;
  --serif:"Noto Serif JP","Source Serif 4","Noto Serif SC",Georgia,"Times New Roman",serif;
  --sans:"Noto Sans JP","IBM Plex Sans","Noto Sans SC","Hiragino Sans","Yu Gothic",system-ui,sans-serif;
  --w:1120px;
  color-scheme:light;
}
html[lang="zh-CN"]{--serif:"Noto Serif SC","Source Serif 4",Georgia,serif;--sans:"Noto Sans SC","IBM Plex Sans","PingFang SC","Microsoft YaHei",system-ui,sans-serif}
html[lang="en"]{--serif:"Source Serif 4",Georgia,"Times New Roman",serif;--sans:"IBM Plex Sans",system-ui,sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased}
html[lang="en"] body{line-height:1.7}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:var(--w);margin:0 auto;padding-inline:24px}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:saturate(140%) blur(6px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;flex-shrink:0}
.brand img{width:36px;height:36px}
.brand .name{display:flex;flex-direction:column;line-height:1.15}
.brand .name b{font-family:"Source Serif 4",Georgia,serif;font-weight:600;font-size:17px;letter-spacing:.14em}
.brand .name small{font-size:11px;letter-spacing:.08em;color:var(--muted)}
.nav{display:flex;gap:22px;margin-left:auto;font-size:14px}
.nav a{text-decoration:none;color:var(--ink-2);white-space:nowrap}
.nav a:hover{color:var(--ink)}
.lang{display:flex;gap:2px;font-size:12.5px;border:1px solid var(--line);border-radius:2px}
.lang a{padding:4px 9px;text-decoration:none;color:var(--muted)}
.lang a[aria-current="true"]{background:var(--ink);color:#fff}
.menu-btn{display:none;margin-left:auto;background:none;border:1px solid var(--line);padding:6px 10px;font:inherit;font-size:13px;cursor:pointer}

/* photo blocks: background-image with a designed fallback when the photo cannot load */
.photo{background-color:#1B2A40;background-image:linear-gradient(135deg,#0E1A2B 0%,#22344F 55%,#3A4C66 100%);background-size:cover;background-position:center;position:relative}
.photo[data-src]{background-image:var(--img),linear-gradient(135deg,#0E1A2B 0%,#22344F 55%,#3A4C66 100%)}

/* hero */
.hero{color:#fff;min-height:560px;display:flex;align-items:flex-end}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,26,43,.35) 0%,rgba(14,26,43,.82) 100%)}
.hero .wrap{position:relative;padding-block:120px 72px;width:100%}
.eyebrow{font-size:12.5px;letter-spacing:.24em;text-transform:uppercase;color:var(--gold)}
.hero .eyebrow{color:#D9BF8C}
.hero h1{font-family:var(--serif);font-weight:600;font-size:clamp(30px,4.6vw,52px);line-height:1.35;margin:14px 0 18px;text-wrap:balance;max-width:20em}
html[lang="en"] .hero h1{line-height:1.15}
.hero p{max-width:40em;font-size:17px;color:#E4E8EE;margin:0}
.hero .cta{margin-top:32px;display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;align-items:center;gap:10px;padding:13px 22px;border-radius:2px;font-size:14.5px;text-decoration:none;letter-spacing:.04em;border:1px solid transparent}
.btn.gold{background:var(--gold);color:#fff}
.btn.gold:hover{background:#97773F}
.btn.ghost{border-color:rgba(255,255,255,.6);color:#fff}
.btn.ghost:hover{background:rgba(255,255,255,.1)}
.btn.ink{background:var(--ink);color:#fff}

/* sections */
section{padding-block:96px}
section.mist{background:var(--mist)}
.sec-head{display:grid;grid-template-columns:240px 1fr;gap:40px;margin-bottom:48px}
.sec-head .eyebrow{padding-top:8px;border-top:2px solid var(--gold);align-self:start}
.sec-head h2{font-family:var(--serif);font-weight:600;font-size:clamp(24px,3vw,34px);line-height:1.45;margin:0 0 12px;text-wrap:balance}
html[lang="en"] .sec-head h2{line-height:1.25}
.sec-head p{margin:0;color:var(--ink-2);max-width:42em}

/* mission */
.mission{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.mission .photo{aspect-ratio:4/3;max-width:100%}
.mission h3{font-family:var(--serif);font-size:22px;font-weight:600;margin:0 0 14px;line-height:1.55}
.values{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:14px}
.values li{display:grid;grid-template-columns:28px 1fr;gap:12px}
.values li::before{content:"";width:18px;height:2px;background:var(--gold);margin-top:13px}
.values b{display:block;font-weight:600}

/* services */
.services{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.svc{background:var(--paper);padding:36px 34px;display:flex;flex-direction:column;gap:12px;min-width:0}
.svc .tag{font-family:"Source Serif 4",Georgia,serif;font-size:13px;letter-spacing:.18em;color:var(--gold)}
.svc h3{font-family:var(--serif);font-weight:600;font-size:21px;margin:0;line-height:1.5}
.svc p{margin:0;color:var(--ink-2);font-size:15px}
.svc ul{margin:6px 0 0;padding-left:1.1em;color:var(--ink-2);font-size:14.5px}
.svc li{margin:3px 0}

/* partner (for Chinese manufacturers) */
.partner{display:grid;grid-template-columns:5fr 6fr;gap:56px}
.partner .photo{min-height:420px}
.pains{display:grid;gap:10px;margin:0 0 28px;padding:0;list-style:none}
.pains li{background:var(--paper);border-left:3px solid var(--gold);padding:12px 16px;font-size:15px}
.offer{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.offer div{min-width:0}
.offer b{display:block;font-family:var(--serif);font-size:16.5px;margin-bottom:4px}
.offer span{font-size:14.5px;color:var(--ink-2)}

/* process */
.steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:0;counter-reset:s;border-top:1px solid var(--line)}
.steps li{list-style:none;padding:26px 18px 0 0;position:relative;min-width:0}
.steps li::before{counter-increment:s;content:"0" counter(s);font-family:"Source Serif 4",Georgia,serif;font-size:30px;color:var(--gold);display:block;line-height:1;margin-bottom:12px}
.steps li::after{content:"";position:absolute;top:-4px;left:0;width:7px;height:7px;background:var(--ink)}
.steps b{display:block;font-size:15.5px;margin-bottom:6px}
.steps span{font-size:14px;color:var(--ink-2)}
.steps-wrap{padding:0;margin:0}

/* company table */
.company{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.company table{width:100%;border-collapse:collapse;font-size:15px}
.company th,.company td{text-align:left;vertical-align:top;padding:16px 0;border-bottom:1px solid var(--line)}
.company th{width:9.5em;font-weight:500;color:var(--muted);padding-right:16px}
.company .photo{aspect-ratio:4/3}

/* contact */
.contact{background:var(--ink);color:#fff}
.contact .sec-head h2{color:#fff}
.contact .sec-head p{color:#C9D0DA}
.contact-box{display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;border:1px solid rgba(255,255,255,.18);padding:32px 36px}
.contact-box .mail{font-family:"Source Serif 4",Georgia,serif;font-size:clamp(20px,2.6vw,28px);letter-spacing:.02em;user-select:all;overflow-wrap:anywhere}
.contact-box small{display:block;color:#AEB8C6;font-size:13px;margin-top:4px}

/* footer */
.site-footer{background:#08111D;color:#9AA5B4;font-size:13px}
.site-footer .wrap{display:flex;flex-wrap:wrap;gap:16px 32px;justify-content:space-between;align-items:center;padding-block:28px}
.site-footer .brand b{color:#fff}
.site-footer .brand small{color:#9AA5B4}
.photo-credit{font-size:11.5px;color:#6F7B8B}

/* responsive */
@media (max-width:1100px){
  .nav{display:none}
  .menu-btn{display:inline-block}
  .nav.open{display:flex;position:absolute;top:72px;left:0;right:0;flex-direction:column;gap:0;background:#fff;border-bottom:1px solid var(--line)}
  .nav.open a{padding:14px 24px;border-top:1px solid var(--line)}
  .lang{order:3}
  .sec-head,.mission,.partner,.company{grid-template-columns:1fr;gap:28px}
  .steps{grid-template-columns:1fr 1fr}
  .partner .photo{min-height:240px}
}
@media (max-width:640px){
  .wrap{padding-inline:16px}
  section{padding-block:64px}
  .services,.offer{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .steps li{padding-right:0}
  .hero{min-height:480px}
  .hero .wrap{padding-block:96px 48px}
  .brand .name small{display:none}
  .site-header .wrap{gap:10px}
  .brand{gap:8px}
  .brand img{width:30px;height:30px}
  .brand .name b{font-size:12.5px;letter-spacing:.06em}
  .lang a{padding:3px 6px;font-size:11.5px}
  .menu-btn{padding:5px 8px;font-size:12px}
  .svc{padding:28px 22px}
  .contact-box{padding:24px 20px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}