:root{
  --ink:#0a2348;
  --ink-2:#061a38;
  --paper:#f4f8fd;
  --paper-2:#e4eef9;
  --white:#ffffff;
  --gold:#014099;
  --gold-2:#65a6ea;
  --sage:#2f78c4;
  --line:rgba(1,64,153,.16);
  --radius:28px;
  --shadow:0 28px 70px rgba(1,52,120,.14);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--paper);font-family:Inter,"Noto Sans JP","Noto Sans SC","Hiragino Kaku Gothic ProN","Yu Gothic",system-ui,sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit}
button{cursor:pointer}
svg{max-width:100%}
.container{width:min(1180px,calc(100% - 48px));margin-inline:auto}
.site-shell{overflow:hidden}

/* header */
.site-header{position:fixed;inset:0 0 auto;z-index:50;background:rgba(255,255,255,.90);border-bottom:1px solid rgba(1,64,153,.10);backdrop-filter:blur(18px)}
.header-inner{height:108px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;min-width:max-content}
.brand__logo{display:block;width:200px;height:auto;object-fit:contain;object-position:left center}
.brand--light .brand__logo{filter:brightness(0) invert(1)}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.main-nav>a{font-size:13px;font-weight:600;position:relative}
.main-nav>a:not(.nav-cta)::after{content:"";position:absolute;left:0;bottom:-7px;width:0;height:1px;background:var(--ink);transition:.25s}
.main-nav>a:hover::after{width:100%}
.nav-cta{display:inline-flex;align-items:center;gap:9px;color:var(--white);background:var(--ink);padding:13px 18px;border-radius:999px}
.nav-cta svg,.button svg,.hero-note svg{width:18px;height:18px;flex:none}
.header-actions{display:flex;align-items:center;gap:9px}
.lang-switcher{position:relative}
.lang-switcher>button{border:0;background:transparent;display:flex;align-items:center;gap:5px;font-size:12px;font-weight:700;padding:10px}
.lang-menu{display:none;position:absolute;right:0;top:44px;width:120px;padding:7px;background:var(--white);box-shadow:var(--shadow);border-radius:12px;border:1px solid var(--line)}
.lang-menu.is-open{display:block}
.lang-menu button{width:100%;text-align:left;border:0;background:transparent;padding:9px 10px;border-radius:8px;font-size:12px}
.lang-menu button:hover{background:var(--paper-2)}
.menu-toggle{display:none;border:0;background:transparent;padding:6px}
.menu-toggle svg{width:24px;height:24px}

/* hero */
.hero{min-height:100svh;padding-top:108px;position:relative;background:radial-gradient(circle at 72% 46%,rgba(45,123,216,.25),transparent 30%),linear-gradient(135deg,#ffffff 0%,#eaf3fd 58%,#dcecff 100%)}
.hero-grid{position:absolute;inset:108px 0 0;background-image:linear-gradient(rgba(1,64,153,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(1,64,153,.055) 1px,transparent 1px);background-size:64px 64px;mask-image:linear-gradient(to bottom,rgba(0,0,0,.65),transparent 90%)}
.hero-inner{min-height:calc(100svh - 146px);display:grid;grid-template-columns:1.06fr .94fr;align-items:center;gap:60px;position:relative;z-index:1;padding-block:64px 72px}
.eyebrow,.section-label{font-size:11px;letter-spacing:.22em;font-weight:700;text-transform:uppercase;display:flex;align-items:center;gap:12px}
.eyebrow span{width:38px;height:1px;background:var(--ink)}
.hero h1{font-size:clamp(54px,7vw,106px);line-height:.96;letter-spacing:-.062em;margin:23px 0 30px;font-weight:600}
.hero h1 em{color:transparent;-webkit-text-stroke:1.5px var(--ink);font-style:normal}
.hero-body{font-size:17px;line-height:1.95;max-width:650px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:54px;padding:0 23px;border-radius:999px;border:1px solid var(--ink);font-weight:700;font-size:13px;transition:.25s ease}
.button:hover{transform:translateY(-2px)}
.button--dark{color:var(--white);background:var(--ink)}
.button--ghost{background:transparent}
.button--gold{border-color:var(--gold);background:var(--gold);color:var(--white)}
.button:disabled{opacity:.42;cursor:not-allowed;transform:none}
.hero-note{display:flex;align-items:center;gap:9px;margin-top:25px;font-size:12px;opacity:.72}
.hero-art{height:600px;position:relative;display:grid;place-items:center}
.hero-orbit{position:absolute;border:1px solid rgba(1,64,153,.20);border-radius:50%}
.hero-orbit--one{width:510px;height:510px;animation:spin 30s linear infinite}
.hero-orbit--two{width:380px;height:380px;border-style:dashed;animation:spinReverse 25s linear infinite}
.hero-center{position:relative;z-index:3;width:235px;aspect-ratio:1;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--ink);color:var(--white);box-shadow:0 32px 80px rgba(1,52,120,.24)}
.hero-center span,.hero-card span{font-size:10px;letter-spacing:.18em;color:var(--gold-2)}
.hero-center strong{font-size:24px;line-height:1.05;text-align:center;letter-spacing:.07em;margin:10px 0 7px}
.hero-center small,.hero-card small{font-size:10px;opacity:.65}
.hero-card{position:absolute;z-index:4;width:160px;min-height:148px;padding:23px;border-radius:22px;background:rgba(255,255,255,.91);border:1px solid rgba(1,64,153,.16);box-shadow:0 22px 48px rgba(1,52,120,.12);backdrop-filter:blur(12px);display:flex;flex-direction:column;justify-content:center}
.hero-card strong{font-size:16px;margin:9px 0 6px}
.hero-card--knife{right:12px;top:82px;transform:rotate(5deg)}
.hero-card--living{left:2px;bottom:75px;transform:rotate(-5deg)}
.hero-marquee{height:38px;overflow:hidden;background:var(--ink);color:var(--paper);display:flex;align-items:center;white-space:nowrap;font-size:10px;letter-spacing:.28em}
.hero-marquee div{animation:marquee 35s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes spinReverse{to{transform:rotate(-360deg)}}
@keyframes marquee{to{transform:translateX(-50%)}}

/* shared sections */
.section{padding:130px 0}
.split-layout{display:grid;grid-template-columns:1fr 1fr;gap:80px}
.section-label{color:var(--gold);margin:0 0 22px}
.section-label::before{content:"";width:26px;height:1px;background:currentColor}
.section-label--light{color:rgba(255,253,248,.62)}
.section-label--gold{color:var(--gold-2)}
.display-title{font-size:clamp(42px,5vw,72px);line-height:1.16;letter-spacing:-.05em;margin:0;font-weight:600}
.intro-content{padding-top:46px}
.intro-content>p{font-size:18px;line-height:2;margin:0}
.value-list{margin-top:46px;border-top:1px solid var(--line)}
.value-list span{display:flex;align-items:center;gap:22px;padding:16px 2px;border-bottom:1px solid var(--line);font-weight:600}
.value-list b{color:var(--gold);font-size:10px;letter-spacing:.15em}

/* business cards */
.business-section{background:var(--white)}
.section-heading{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:58px}
.section-heading .display-title{max-width:760px}
.business-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.business-card{min-height:500px;padding:30px;border:1px solid var(--line);border-radius:var(--radius);display:flex;flex-direction:column;transition:.35s ease;background:var(--paper)}
.business-card:hover{transform:translateY(-8px);box-shadow:var(--shadow)}
.business-card--2{background:var(--ink);color:var(--white)}
.business-card--3{background:#dbeafa}
.business-card__top{display:flex;align-items:center;justify-content:space-between}
.business-card__top span{font-size:11px;letter-spacing:.2em;color:var(--gold)}
.business-card__top svg{width:24px;height:24px}
.business-card__sub{margin:78px 0 10px;font-size:11px!important;letter-spacing:.12em;opacity:.58;text-transform:uppercase}
.business-card h3{font-size:28px;line-height:1.05;margin:0 0 28px;letter-spacing:-.03em}
.business-card h4{font-size:19px;line-height:1.55;margin:0 0 16px}
.business-card>p{font-size:14px;line-height:1.9;opacity:.76}
.business-card>a{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:20px;border-top:1px solid currentColor;font-size:12px;font-weight:700}
.business-card>a svg{width:18px;height:18px}

/* feature sections */
.feature-section{padding:145px 0}
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:90px;align-items:center}
.feature-grid--reverse{grid-template-columns:1.08fr .92fr}
.feature-copy h2{font-size:clamp(48px,6vw,88px);line-height:.95;margin:0 0 30px;letter-spacing:-.055em}
.feature-copy h3{font-size:clamp(25px,3vw,42px);line-height:1.4;margin:0 0 26px;letter-spacing:-.035em}
.feature-copy>p{line-height:2;font-size:16px}
.feature-section--buried{background:var(--ink);color:var(--white)}
.buried-art{height:540px;border-radius:40px;background:linear-gradient(145deg,#0b3974,#041a38);position:relative;overflow:hidden}
.buried-art::before{content:"";position:absolute;inset:22px;border:1px solid rgba(255,255,255,.13);border-radius:30px}
.buried-word{position:absolute;font-size:270px;font-weight:700;letter-spacing:-.12em;left:-12px;bottom:-60px;color:rgba(255,255,255,.035)}
.buried-art>p{position:absolute;left:52px;bottom:42px;font-size:32px;line-height:1.1;margin:0}
.stack{position:absolute;width:96px;height:96px;border-radius:24px;display:grid;place-items:center;border:1px solid rgba(255,255,255,.13);background:rgba(255,255,255,.06);backdrop-filter:blur(10px)}
.stack svg{width:30px;height:30px}
.stack--1{right:80px;top:70px;transform:rotate(8deg)}
.stack--2{right:184px;top:183px;transform:rotate(-8deg)}
.stack--3{right:65px;top:290px;transform:rotate(5deg)}
.check-list{list-style:none;padding:0;margin:32px 0 0;display:grid;gap:13px}
.check-list li{display:flex;align-items:center;gap:12px;font-size:14px}
.check-list li span{color:var(--gold-2);font-weight:700}
.feature-section--knife{background:#061a38;color:var(--white)}
.knife-art{min-height:550px;position:relative;color:var(--gold-2);display:grid;place-items:center}
.knife-visual{width:100%}
.knife-number{position:absolute;left:24px;bottom:60px;font-size:100px;line-height:.8;color:var(--gold-2);font-weight:600;letter-spacing:-.08em}
.knife-art>small{position:absolute;left:32px;bottom:20px;letter-spacing:.22em}
.feature-copy--light h2{color:var(--white)}
.mini-feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:rgba(255,255,255,.14);margin-top:35px}
.mini-feature-grid div{padding:20px;background:#061a38;display:grid;gap:6px}
.mini-feature-grid strong{color:var(--gold-2);font-size:12px;text-transform:uppercase;letter-spacing:.1em}
.mini-feature-grid span{font-size:12px;opacity:.7}
blockquote{margin:28px 0 0;border-left:1px solid var(--gold);padding-left:20px;font-family:Georgia,serif;font-style:italic;line-height:1.8;color:rgba(255,255,255,.7)}
.feature-section--living{background:#e6f0fb}
.living-side{position:relative}
.living-visual{filter:drop-shadow(0 25px 55px rgba(1,64,153,.16))}
.target-box{border-top:1px solid rgba(1,64,153,.25);margin-top:34px;padding-top:24px}
.target-box>strong,.plan-list>strong{display:block;font-size:12px;letter-spacing:.14em;margin-bottom:15px}
.target-box ul{list-style:none;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:12px 18px}
.target-box li{font-size:13px;padding-left:16px;position:relative}
.target-box li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--sage);position:absolute;left:0;top:.65em}
.plan-list{width:min(480px,90%);margin:-48px auto 0;position:relative;z-index:2;background:var(--white);border-radius:22px;padding:24px;box-shadow:var(--shadow)}
.plan-list>div{display:flex;gap:14px;padding:15px 0;border-bottom:1px solid var(--line)}
.plan-list>div:last-child{border-bottom:0}
.plan-list>div>span{font-size:10px;color:var(--gold)}
.plan-list p{margin:0;display:grid;gap:4px}
.plan-list b{font-size:14px}
.plan-list small{opacity:.65;line-height:1.6}

/* why */
.section-heading--center{display:block;text-align:center}
.section-heading--center .section-label{justify-content:center}
.strength-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.strength-grid article{min-height:310px;padding:25px;background:var(--white);border:1px solid var(--line);border-radius:20px;display:flex;flex-direction:column}
.strength-grid article>span{color:var(--gold);font-size:10px;letter-spacing:.15em}
.strength-grid article>svg{width:28px;height:28px;margin:56px 0 26px}
.strength-grid h3{font-size:16px;line-height:1.55;margin:0 0 12px}
.strength-grid p{font-size:13px;line-height:1.75;opacity:.7}

/* process */
.process-section{background:var(--ink-2);color:var(--white)}
.process-header{display:flex;align-items:end;justify-content:space-between;margin-bottom:60px}
.process-header h2{font-size:clamp(40px,5vw,68px);margin:0;letter-spacing:-.05em}
.process-header>svg{width:62px;height:62px;color:var(--gold-2);opacity:.7}
.process-list{border-top:1px solid rgba(255,255,255,.17)}
.process-list>div{display:grid;grid-template-columns:70px 190px 1fr 30px;gap:28px;align-items:center;padding:30px 0;border-bottom:1px solid rgba(255,255,255,.17)}
.process-list span{color:var(--gold-2);font-size:11px}
.process-list h3{margin:0;font-size:20px}
.process-list p{margin:0;opacity:.66;line-height:1.8;font-size:14px}
.process-list svg{width:22px;height:22px;opacity:.4}

/* company */
.company-grid{display:grid;grid-template-columns:.76fr 1.24fr;gap:100px}
.company-copy>p:last-of-type{margin-top:24px;letter-spacing:.15em;font-size:11px}
.company-seal{margin-top:80px;width:120px;aspect-ratio:1;border:1px solid var(--gold);border-radius:50%;display:grid;place-items:center;text-align:center;font-family:serif;font-size:42px;color:var(--gold);line-height:.8}
.company-seal small{font-family:Inter,system-ui,sans-serif;font-size:7px;letter-spacing:.18em;display:block}
.company-table{margin:0;border-top:1px solid var(--line)}
.company-table>div{display:grid;grid-template-columns:145px 1fr;gap:25px;padding:18px 0;border-bottom:1px solid var(--line)}
.company-table dt{font-size:12px;color:var(--gold);font-weight:700}
.company-table dd{margin:0;font-size:14px;line-height:1.7}

/* contact */
.contact-section{padding:130px 0;background:#071c3d;color:var(--white)}
.contact-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:100px}
.contact-copy h2{font-size:clamp(40px,5vw,69px);line-height:1.2;letter-spacing:-.05em;margin:0 0 27px}
.contact-copy>p{line-height:1.9;opacity:.7}
.direct-contact{margin-top:55px;display:grid;gap:12px}
.direct-contact strong{font-size:11px;letter-spacing:.14em;color:var(--gold-2)}
.direct-contact a{font-size:20px;width:max-content}
.contact-form{background:#0b2c5a;border:1px solid rgba(255,255,255,.12);padding:34px;border-radius:28px;display:grid;gap:20px}
.contact-form label{display:grid;gap:8px;font-size:11px;letter-spacing:.06em;color:rgba(255,255,255,.65)}
.contact-form input,.contact-form textarea,.contact-form select{width:100%;color:var(--white);background:transparent;border:0;border-bottom:1px solid rgba(255,255,255,.24);padding:11px 2px;outline:none;border-radius:0}
.contact-form input:focus,.contact-form textarea:focus,.contact-form select:focus{border-color:var(--gold-2)}
.contact-form select option{color:var(--ink)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.privacy-check{display:flex!important;align-items:center;color:rgba(255,255,255,.8)!important}
.privacy-check input{width:16px;accent-color:var(--gold)}
.form-notice{opacity:.48;line-height:1.7}

/* footer */
.site-footer{background:#04152f;color:var(--white);padding:55px 0 20px}
.footer-top{display:flex;align-items:center;gap:50px;padding-bottom:45px;border-bottom:1px solid rgba(255,255,255,.14)}
.footer-top>p{margin-left:auto;opacity:.58}
.footer-top>a{width:46px;height:46px;display:grid;place-items:center;border:1px solid rgba(255,255,255,.2);border-radius:50%}
.footer-top>a svg{width:24px;height:24px}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;font-size:10px;letter-spacing:.08em;opacity:.5}

[data-reveal]{opacity:0;transform:translateY(28px);transition:opacity .8s ease,transform .8s ease}
[data-reveal].is-visible{opacity:1;transform:none}

@media (max-width:980px){
  .container{width:min(100% - 36px,1180px)}
  .main-nav{position:fixed;inset:108px 0 auto;padding:28px;background:var(--paper);display:none;flex-direction:column;align-items:stretch;border-bottom:1px solid var(--line)}
  .main-nav.is-open{display:flex}
  .main-nav a{font-size:16px;padding:8px 0}
  .menu-toggle{display:grid;place-items:center}
  .hero-inner,.split-layout,.feature-grid,.feature-grid--reverse,.company-grid,.contact-grid{grid-template-columns:1fr}
  .hero-inner{padding-top:80px}
  .hero-art{height:470px}
  .hero-orbit--one{width:420px;height:420px}.hero-orbit--two{width:310px;height:310px}
  .business-grid{grid-template-columns:1fr}
  .business-card{min-height:390px}
  .business-card__sub{margin-top:50px}
  .strength-grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid{gap:55px}
  .buried-art{order:-1}
  .company-grid,.contact-grid{gap:55px}
}

@media (max-width:620px){
  .container{width:min(100% - 28px,1180px)}
  .header-inner{height:88px}
  .brand__logo{width:156px}
  .main-nav{top:88px}
  .hero{padding-top:88px}
  .hero-inner{min-height:auto;padding:70px 0 35px;gap:20px}
  .hero h1{font-size:54px}
  .hero-art{height:385px;transform:scale(.92)}
  .hero-orbit--one{width:350px;height:350px}.hero-orbit--two{width:260px;height:260px}
  .hero-center{width:180px}
  .hero-center strong{font-size:19px}
  .hero-card{width:130px;min-height:122px;padding:16px}
  .hero-card--knife{right:-6px;top:40px}.hero-card--living{left:-4px;bottom:34px}
  .section,.feature-section,.contact-section{padding:88px 0}
  .display-title{font-size:42px}
  .section-heading{display:block}
  .intro-content{padding-top:0}
  .feature-copy h2{font-size:48px}
  .target-box ul{grid-template-columns:1fr}
  .mini-feature-grid,.form-row{grid-template-columns:1fr}
  .strength-grid{grid-template-columns:1fr}
  .strength-grid article{min-height:240px}
  .strength-grid article>svg{margin:35px 0 20px}
  .process-list>div{grid-template-columns:44px 1fr 24px;gap:14px}
  .process-list p{grid-column:2/4}
  .company-table>div{grid-template-columns:92px 1fr;gap:16px}
  .footer-top{align-items:flex-start;flex-wrap:wrap;gap:25px}
  .footer-top>p{margin-left:0;width:100%}
  .footer-top>a{margin-left:auto}
  .footer-bottom{flex-direction:column}
}


/* Corporate blue refinement */
::selection{background:rgba(1,64,153,.22)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid rgba(101,166,234,.75);outline-offset:3px}
.hero-center{background:linear-gradient(145deg,#014099,#062858)}
.hero-card span,.hero-center span{color:#8fc4f5}
.business-card--2{background:linear-gradient(145deg,#0b3974,#061a38)}
.business-card--2 .business-card__top span{color:#8fc4f5}
.section-label--gold,.direct-contact strong,.check-list li span,.process-list span,.process-header>svg,.knife-number,.knife-art{color:#8fc4f5}
.nav-cta{background:#014099}
.button--dark{background:#014099;border-color:#014099}
.hero-marquee{background:#014099}
.company-seal{background:rgba(1,64,153,.035)}
.site-header.scrolled{box-shadow:0 10px 30px rgba(1,52,120,.08)}
@media (max-width:620px){.brand__logo{width:156px}}

/* 2026-08 layout and typography refinements */
.site-header{background:rgba(255,255,255,.94)}
.header-inner{height:92px;gap:22px}
.brand__logo{width:140px;max-height:72px}
.footer-top .brand__logo{width:124px;max-height:64px}
.main-nav{gap:22px}
.main-nav>a{white-space:nowrap}

.hero{padding-top:92px}
.hero-grid{inset:92px 0 0}
.hero-inner{min-height:calc(100svh - 130px);grid-template-columns:minmax(0,1.18fr) minmax(420px,.82fr);gap:34px;padding-block:58px 66px}
.hero-copy{min-width:0;max-width:760px}
.hero h1{font-size:clamp(54px,5.65vw,84px);line-height:1.02;letter-spacing:-.06em;margin:22px 0 28px;text-wrap:balance}
.hero-title__lead,.hero-title__tail{display:block}
.hero-title__lead{white-space:nowrap}
.hero-title__tail span{display:inline-block;white-space:nowrap}
.hero-title__tail span+span{margin-left:.08em}
html[lang="en"] .hero-title__tail span+span{margin-left:.18em}
.hero-body{max-width:680px;text-wrap:pretty;word-break:auto-phrase}
.hero-center{width:226px;padding:0;overflow:hidden;background:transparent;box-shadow:0 32px 80px rgba(1,52,120,.24)}
.hero-center img{display:block;width:100%;height:100%;object-fit:contain}

.text-line{display:block;text-wrap:balance;word-break:auto-phrase;line-break:strict}
.display-title{font-size:clamp(40px,4.35vw,66px);line-height:1.22;letter-spacing:-.045em}
.section-heading .display-title{max-width:880px}
.feature-copy h2{font-size:clamp(46px,5.15vw,76px);line-height:1.02;letter-spacing:-.045em}
.feature-copy h3{font-size:clamp(25px,2.55vw,36px);line-height:1.5;letter-spacing:-.025em;text-wrap:balance;word-break:auto-phrase}
.feature-copy h3 .text-line,.contact-copy h2 .text-line{display:block}
.contact-copy h2{font-size:clamp(38px,4.35vw,60px);line-height:1.28;letter-spacing:-.04em;text-wrap:balance}
.business-card h3,.business-card h4,.strength-grid h3,.process-header h2{word-break:auto-phrase;text-wrap:balance}
.business-card h3{font-size:26px;line-height:1.14;overflow-wrap:normal}
.business-card__sub{margin-top:64px}

.buried-logo{position:absolute;left:44px;top:42px;width:254px;height:auto;filter:drop-shadow(0 20px 38px rgba(0,0,0,.18))}
.buried-art>p{left:52px;bottom:42px}
.direct-contact a,.company-table dd,.footer-bottom span{overflow-wrap:anywhere}

@media (max-width:1100px){
  .main-nav{gap:16px}
  .main-nav>a{font-size:12px}
  .brand__logo{width:128px}
  .hero-inner{grid-template-columns:minmax(0,1.08fr) minmax(370px,.92fr);gap:20px}
  .hero h1{font-size:clamp(51px,5.4vw,72px)}
}

@media (max-width:980px){
  .header-inner{height:86px}
  .brand__logo{width:122px;max-height:64px}
  .main-nav{inset:86px 0 auto}
  .hero{padding-top:86px}
  .hero-grid{inset:86px 0 0}
  .hero-inner{grid-template-columns:1fr;gap:22px;padding-top:64px}
  .hero-copy{max-width:800px}
  .hero h1{font-size:clamp(54px,8.4vw,78px)}
  .hero-art{height:450px}
}

@media (max-width:620px){
  .container{width:min(100% - 30px,1180px)}
  .header-inner{height:76px;gap:10px}
  .brand__logo{width:108px;max-height:56px}
  .footer-top .brand__logo{width:108px;max-height:56px}
  .main-nav{top:76px;padding:22px 20px}
  .header-actions{gap:3px}
  .lang-switcher>button{padding:8px 5px}
  .hero{padding-top:76px}
  .hero-grid{inset:76px 0 0;background-size:42px 42px}
  .hero-inner{padding:54px 0 28px;gap:12px}
  .eyebrow{font-size:9px;letter-spacing:.16em;gap:9px}
  .eyebrow span{width:26px}
  .hero h1{font-size:clamp(35px,11.2vw,44px);line-height:1.09;letter-spacing:-.055em;margin:18px 0 22px}
  .hero-title__lead{white-space:nowrap}
  .hero-title__tail span{display:block;margin-left:0!important}
  html[lang="en"] .hero-title__lead{white-space:normal}
  html[lang="en"] .hero h1{font-size:clamp(34px,10.7vw,42px)}
  html[lang="zh-CN"] .hero h1{font-size:clamp(34px,10.7vw,42px)}
  .hero-body{font-size:14px;line-height:1.9;margin:0}
  .hero-actions{margin-top:26px;gap:9px}
  .button{min-height:48px;padding:0 18px;font-size:12px}
  .hero-art{height:342px;transform:none;margin-top:5px}
  .hero-orbit--one{width:310px;height:310px}
  .hero-orbit--two{width:228px;height:228px}
  .hero-center{width:158px}
  .hero-card{width:114px;min-height:108px;padding:14px;border-radius:18px}
  .hero-card strong{font-size:14px;line-height:1.1}
  .hero-card--knife{right:-3px;top:34px}
  .hero-card--living{left:-2px;bottom:28px}
  .hero-marquee{height:34px;font-size:8px}
  .section,.feature-section,.contact-section{padding:76px 0}
  .split-layout,.feature-grid,.feature-grid--reverse,.company-grid,.contact-grid{gap:38px}
  .section-label{font-size:9px;letter-spacing:.16em;margin-bottom:16px}
  .display-title{font-size:clamp(30px,9.2vw,37px);line-height:1.34;letter-spacing:-.035em}
  .intro-content>p{font-size:15px;line-height:1.95}
  .section-heading{margin-bottom:38px}
  .business-card{min-height:360px;padding:24px}
  .business-card__sub{margin-top:42px}
  .business-card h3{font-size:23px;line-height:1.2;overflow-wrap:anywhere}
  .business-card h4{font-size:17px;line-height:1.6}
  .feature-copy h2{font-size:clamp(36px,11vw,46px);line-height:1.07;margin-bottom:24px}
  .feature-copy h3{font-size:clamp(22px,6.7vw,27px);line-height:1.58;margin-bottom:20px}
  .feature-copy h3 .text-line{display:block}
  .feature-copy>p{font-size:14px;line-height:1.95}
  .buried-art{height:420px;border-radius:28px}
  .buried-art::before{inset:16px;border-radius:21px}
  .buried-logo{left:26px;top:27px;width:188px}
  .buried-art>p{left:28px;bottom:27px;font-size:25px}
  .stack{width:70px;height:70px;border-radius:18px}
  .stack--1{right:42px;top:58px}.stack--2{right:105px;top:145px}.stack--3{right:35px;top:232px}
  .knife-art{min-height:390px}
  .knife-number{font-size:72px;left:12px;bottom:47px}
  .knife-art>small{left:16px;bottom:14px;font-size:9px}
  .target-box ul{gap:10px}
  .target-box li{font-size:12px;line-height:1.65}
  .plan-list{width:96%;margin-top:-24px;padding:20px}
  .plan-list b{font-size:13px}
  .plan-list small{font-size:11px}
  .process-header{align-items:flex-start;gap:18px}
  .process-header h2{font-size:34px;line-height:1.25}
  .process-header>svg{width:46px;height:46px;flex:none}
  .company-copy>p:last-of-type{font-size:10px;line-height:1.6;letter-spacing:.08em}
  .company-seal{margin-top:42px;width:98px;font-size:34px}
  .company-table>div{grid-template-columns:82px minmax(0,1fr);gap:14px;padding:15px 0}
  .company-table dt{font-size:10px}
  .company-table dd{font-size:12px;line-height:1.75}
  .contact-copy h2{font-size:clamp(31px,9vw,38px);line-height:1.38}
  .contact-copy>p{font-size:14px}
  .direct-contact{margin-top:38px}
  .direct-contact a{font-size:17px;max-width:100%}
  .contact-form{padding:24px 20px;border-radius:22px}
  .footer-top{padding-bottom:32px}
  .footer-top>p{font-size:13px;line-height:1.7}
  .footer-bottom{font-size:9px;line-height:1.6}
}

@media (max-width:360px){
  .brand__logo{width:100px}
  .hero h1{font-size:34px}
  .hero-art{height:320px}
  .hero-center{width:146px}
  .hero-card{width:104px;min-height:100px}
  .display-title{font-size:29px}
  .feature-copy h2{font-size:35px}
  .feature-copy h3{font-size:21px}
}

/* Exact company-name casing and two-line desktop hero */
.eyebrow{text-transform:none}
@media (min-width:981px){
  .hero h1{font-size:clamp(52px,4.85vw,70px)}
}


/* 2026-08-06 final refinement: compact corporate logos, natural line breaks */
.header-inner{height:72px}
.brand__logo{width:48px;max-height:34px}
.footer-top .brand__logo{width:42px;max-height:30px}
.hero{padding-top:72px}
.hero-grid{inset:72px 0 0}
.hero-inner{min-height:calc(100svh - 110px)}
.main-nav{gap:28px}
.main-nav>a{font-size:13px}

/* Deliberate, readable Japanese line grouping */
.intro-section .display-title{max-width:690px}
.business-section .display-title{max-width:700px}
.feature-section--living .feature-copy h3{max-width:680px}
.contact-copy h2{max-width:620px}
.company-copy>p:last-of-type{margin-top:28px}

/* The decorative integrity seal has been removed from the markup. */
.company-seal{display:none!important}

@media (max-width:980px){
  .header-inner{height:68px}
  .brand__logo{width:46px;max-height:33px}
  .main-nav{inset:68px 0 auto}
  .hero{padding-top:68px}
  .hero-grid{inset:68px 0 0}
}

@media (max-width:620px){
  .header-inner{height:62px}
  .brand__logo{width:42px;max-height:30px}
  .footer-top .brand__logo{width:38px;max-height:27px}
  .main-nav{top:62px}
  .hero{padding-top:62px}
  .hero-grid{inset:62px 0 0}

  .intro-section .display-title,
  .business-section .display-title{font-size:clamp(28px,8.1vw,32px);line-height:1.42;letter-spacing:-.03em}
  .feature-section--living .feature-copy h3{font-size:clamp(21px,6.1vw,24px);line-height:1.62;letter-spacing:-.02em}
  .contact-copy h2{font-size:clamp(29px,8.1vw,34px);line-height:1.48;letter-spacing:-.025em;max-width:100%}
  .text-line{white-space:nowrap}
  html[lang="en"] .text-line,
  html[lang="zh-CN"] .text-line{white-space:normal}
  .footer-top{gap:18px}
}

@media (max-width:360px){
  .brand__logo{width:38px}
  .footer-top .brand__logo{width:34px}
  .intro-section .display-title,
  .business-section .display-title{font-size:27px}
  .contact-copy h2{font-size:28px}
}


/* 2026-08-06 v4 final micro-adjustments */
.section-heading--center .display-title{margin-inline:auto;text-align:center;max-width:100%;}
.business-section .display-title{max-width:920px;}
.feature-section--living .feature-copy h3{max-width:820px;}
.feature-section--living .feature-copy h3 .text-line{white-space:nowrap;}
.contact-copy h2{max-width:760px;}
.contact-copy h2 .text-line{white-space:nowrap;}
@media (min-width:981px){
  .contact-copy h2{font-size:clamp(36px,4.05vw,56px);line-height:1.3;}
}
@media (max-width:980px){
  .feature-section--living .feature-copy h3 .text-line,
  .contact-copy h2 .text-line{white-space:normal;}
}

/* 2026-08-06 v5: refined two-line headings and compact contact section */
@media (min-width:981px){
  .business-section .display-title{
    max-width:920px;
    font-size:clamp(46px,4.35vw,64px);
    line-height:1.18;
  }
  .business-section .display-title .text-line{white-space:nowrap}

  .feature-section--living .feature-copy h3{
    max-width:620px;
    font-size:clamp(28px,2.45vw,35px);
    line-height:1.48;
  }
  .feature-section--living .feature-copy h3 .text-line{white-space:nowrap}

  .section-heading--center .display-title{
    margin-inline:auto;
    text-align:center;
  }

  .contact-section{
    padding:94px 0;
  }
  .contact-section .container{
    width:min(1080px,calc(100% - 48px));
  }
  .contact-grid{
    grid-template-columns:.88fr 1.12fr;
    gap:64px;
    align-items:start;
  }
  .contact-copy h2{
    max-width:500px;
    font-size:clamp(36px,3.45vw,50px);
    line-height:1.32;
    letter-spacing:-.035em;
    margin-bottom:20px;
  }
  .contact-copy>p{
    max-width:510px;
    font-size:14px;
    line-height:1.9;
  }
  .direct-contact{
    margin-top:36px;
    gap:9px;
  }
  .direct-contact a{font-size:18px}
  .contact-form{
    padding:28px 30px;
    border-radius:24px;
    gap:16px;
  }
  .contact-form input,
  .contact-form textarea,
  .contact-form select{padding:9px 2px}
  .contact-form textarea{min-height:118px}
  .contact-form .button{min-height:48px}
  .form-notice{font-size:10px}
}

@media (max-width:620px){
  .business-section .display-title .text-line,
  .feature-section--living .feature-copy h3 .text-line,
  .contact-copy h2 .text-line{
    white-space:normal;
  }
  .business-section .display-title{
    font-size:clamp(27px,7.8vw,31px);
    line-height:1.44;
  }
  .feature-section--living .feature-copy h3{
    font-size:clamp(20px,5.8vw,23px);
    line-height:1.65;
  }
  .contact-section{padding:66px 0}
  .contact-grid{gap:30px}
  .contact-copy h2{
    font-size:clamp(27px,7.6vw,32px);
    line-height:1.5;
    margin-bottom:18px;
  }
  .contact-copy>p{font-size:13px;line-height:1.9}
  .direct-contact{margin-top:28px}
  .direct-contact a{font-size:16px}
  .contact-form{padding:20px 18px;gap:15px}
  .form-row{grid-template-columns:1fr;gap:15px}
  .contact-form textarea{min-height:105px}
}