/* 恒界智控 — aluminium & graphite. Brushed-metal surfaces, one blue for actions, one green LED for "online". */
:root{
 --bg:#e9ecef;--panel:#f7f8f9;--panel-2:#dfe3e7;--ink:#1c2126;--muted:#58616b;--line:#c7cdd3;
 --accent:#1f55d6;--accent-ink:#fff;--led:#29a865;--radius:14px;
 --sans:"PingFang SC","Hiragino Sans GB","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
html[lang=ja]{--sans:"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic UI","Meiryo",system-ui,sans-serif}
html[lang=en]{--sans:system-ui,-apple-system,"Segoe UI","Helvetica Neue",Arial,sans-serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.75;font-feature-settings:"tnum" 1}
a{color:var(--accent)}
img{max-width:100%}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.skip-link{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:8px 14px;border-radius:8px;z-index:10}
.skip-link:focus{left:12px}
.site-panel{max-width:1120px;margin:0 auto;padding:0 28px}

/* header */
.site-header{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:22px 0;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none}
.brand-icon{width:34px;height:34px;border-radius:9px;background:linear-gradient(180deg,#fdfdfe,#d5dade);border:1px solid #b9c0c7;position:relative;flex:none}
.brand-icon::after{content:"";position:absolute;right:7px;bottom:7px;width:5px;height:5px;border-radius:50%;background:var(--led)}
.brand-words{display:flex;flex-direction:column;line-height:1.2}
.brand-mark{font-size:20px;font-weight:600;letter-spacing:.08em}
.brand-sub{font-size:12px;color:var(--muted);letter-spacing:.02em}
.header-tools{display:flex;align-items:center;gap:28px}
.nav{display:flex;gap:22px}
.nav a,.lang-switch a{color:var(--muted);text-decoration:none;font-size:15px}
.nav a:hover,.nav a[aria-current=page]{color:var(--ink)}
.nav a[aria-current=page]{font-weight:600}
.lang-switch{display:flex;gap:2px;background:var(--panel-2);border-radius:999px;padding:3px}
.lang-switch a{padding:3px 11px;border-radius:999px;font-size:13px}
.lang-switch a[aria-current]{background:var(--panel);color:var(--ink);box-shadow:0 1px 2px rgba(28,33,38,.15)}

main{display:block;padding:8px 0 64px}

/* buttons */
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.button{display:inline-block;padding:12px 22px;border-radius:10px;background:var(--accent);color:var(--accent-ink);text-decoration:none;font-weight:600;font-size:15px;border:1px solid var(--accent);cursor:pointer;font-family:inherit}
.button:hover{background:#1846b4}
.button.outline{background:transparent;color:var(--ink);border-color:#9aa3ac}
.button.outline:hover{background:var(--panel)}
.button[disabled]{opacity:.5;cursor:not-allowed}

/* hero */
.hero{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;padding:64px 0 56px}
.slogan{font-size:clamp(40px,5.6vw,68px);word-break:keep-all;font-weight:700;line-height:1.08;letter-spacing:.04em;margin:0 0 22px}
html[lang=en] .slogan{letter-spacing:-.01em}
.hero h1{font-size:22px;font-weight:600;margin:0}
.hero-sub{margin:4px 0 0;color:var(--muted)}
.hero-lead{margin:18px 0 0;max-width:34em}
.hero-price{display:flex;align-items:baseline;gap:8px;margin:24px 0 0;color:var(--muted);font-size:14px}
.hero-price strong{font-size:30px;color:var(--ink);font-weight:700}

/* the Mac mini, drawn */
.mini{margin:0;display:flex;flex-direction:column;align-items:center}
.mini-body{width:min(100%,340px);aspect-ratio:1/1;border-radius:22%;background:linear-gradient(145deg,#fbfcfc 0%,#e3e7ea 55%,#cfd5da 100%);border:1px solid #b7bec5;box-shadow:inset 0 2px 0 #fff,inset 0 -6px 18px rgba(28,33,38,.08),0 30px 50px -28px rgba(28,33,38,.45);position:relative}
.mini-apple{position:absolute;left:50%;top:50%;width:18%;height:18%;transform:translate(-50%,-50%);border-radius:50%;background:radial-gradient(circle at 40% 35%,#d9dee2,#c3cad0);box-shadow:inset 0 1px 2px rgba(0,0,0,.12)}
.mini-led{position:absolute;left:14%;bottom:12%;width:9px;height:9px;border-radius:50%;background:var(--led);box-shadow:0 0 0 4px rgba(41,168,101,.18)}
@media (prefers-reduced-motion:no-preference){.mini-led{animation:pulse 3.2s ease-in-out infinite}}
@keyframes pulse{50%{box-shadow:0 0 0 9px rgba(41,168,101,0)}}
.mini-shadow{width:70%;height:14px;margin-top:-4px;border-radius:50%;background:radial-gradient(rgba(28,33,38,.18),transparent 70%)}
.mini figcaption{margin-top:22px;display:flex;flex-direction:column;align-items:center;gap:2px;font-size:14px;color:var(--muted);text-align:center}
.mini-state{display:inline-flex;align-items:center;gap:7px;color:var(--ink);font-weight:600}
.mini-state i{width:8px;height:8px;border-radius:50%;background:var(--led)}

/* features */
.features{display:grid;grid-template-columns:repeat(4,1fr);margin:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.features>div{padding:26px 22px 26px 0}
.features>div+div{padding-left:22px;border-left:1px solid var(--line)}
.features dt{font-weight:600;margin-bottom:6px}
.features dd{margin:0;color:var(--muted);font-size:14.5px}

/* blocks */
.block{padding:72px 0 0}
.block-head{margin-bottom:28px}
.block-head h2{font-size:30px;line-height:1.3;margin:0;font-weight:700}
.block-head p{margin:8px 0 0;color:var(--muted)}

/* plans */
.plans{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.plan{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:30px;display:flex;flex-direction:column}
.plan-primary{background:var(--ink);color:#eef1f4;border-color:var(--ink)}
.plan-tag{margin:0;font-size:13px;color:var(--muted)}
.plan-primary .plan-tag,.plan-primary .plan-year{color:#a9b2bc}
.plan h3{margin:4px 0 0;font-size:20px}
.plan-price{margin:20px 0 0;display:flex;align-items:baseline;gap:4px}
.plan-price .yen{font-size:22px;font-weight:600}
.plan-price .amount{font-size:52px;font-weight:700;line-height:1;letter-spacing:-.02em}
.plan-price .unit{font-size:14px;margin-left:6px;color:var(--muted)}
.plan-primary .plan-price .unit{color:#a9b2bc}
.plan-year{margin:8px 0 0;font-size:14px;color:var(--muted)}
.plan-items{list-style:none;margin:22px 0 26px;padding:18px 0 0;border-top:1px solid var(--line);flex:1}
.plan-primary .plan-items{border-color:#3a424b}
.plan-items li{padding:5px 0 5px 22px;position:relative;font-size:15px}
.plan-items li::before{content:"";position:absolute;left:2px;top:14px;width:8px;height:8px;border-radius:50%;border:2px solid var(--accent)}
.plan-primary .plan-items li::before{border-color:var(--led)}
.plan .button{align-self:flex-start}
.plan-primary .button{background:#fff;color:var(--ink);border-color:#fff}
.plan-primary .button:hover{background:#e3e7ea}

/* flow — a real sequence, so it is numbered */
.flow{list-style:none;counter-reset:step;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.flow li{counter-increment:step;padding:24px 0 0;border-top:2px solid var(--ink);position:relative}
.flow li::before{content:counter(step);font-size:40px;font-weight:700;line-height:1;color:var(--accent);display:block;margin-bottom:14px}
.flow h3{margin:0 0 6px;font-size:18px}
.flow p{margin:0;color:var(--muted);font-size:15px}

/* faq */
.faq{border-top:1px solid var(--line);max-width:820px}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:18px 36px 18px 0;font-weight:600;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:4px;top:12px;font-size:24px;font-weight:400;color:var(--muted)}
.faq details[open] summary::after{content:"–"}
.faq details p{margin:0 0 20px;color:var(--muted);max-width:44em}

.contact-band{margin-top:72px;padding:44px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius)}
.contact-band .block-head{margin-bottom:0}
.direct-contact{margin:18px 0 0;color:var(--muted);font-size:15px}

/* inner pages */
.page{max-width:820px;padding:56px 0 0}
.eyebrow{display:none}
.page h1{font-size:34px;line-height:1.3;margin:0 0 10px}
.heading p{color:var(--muted);margin:6px 0 0}
.page h2{font-size:20px;margin:36px 0 8px}
.policy p,.policy li{color:#2e353c}
.notice{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:12px 16px;font-size:14px}
.policy-dates{color:var(--muted);font-size:14px;margin-top:32px}
.company-table{display:grid;grid-template-columns:200px 1fr;margin:24px 0 0;border-top:1px solid var(--line)}
.company-table dt,.company-table dd{padding:14px 0;border-bottom:1px solid var(--line);margin:0}
.company-table dt{font-weight:600;padding-right:20px}
.company-table ul{margin:0;padding-left:18px}

/* form */
#contact-form{margin-top:28px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:30px}
.field{margin-bottom:18px}
.field label{display:block;font-weight:600;font-size:14px;margin-bottom:6px}
.field input,.field textarea{width:100%;font:inherit;padding:11px 13px;border:1px solid #b6bec6;border-radius:9px;background:#fff;color:var(--ink)}
.field textarea{min-height:190px;resize:vertical}
.field input:focus,.field textarea:focus{outline:2px solid var(--accent);outline-offset:0;border-color:var(--accent)}
.honeypot{position:absolute;left:-9999px}
.privacy-note{font-size:14px;color:var(--muted)}
.consent{display:flex;gap:8px;align-items:flex-start;margin:12px 0 16px;font-size:15px}
.consent input{margin-top:6px}
#contact-verification{margin-bottom:12px}
.form-status{min-height:1.5em;color:#b42318;font-size:14px}

/* footer */
.site-footer{border-top:1px solid var(--line);padding:28px 0 40px;display:flex;flex-wrap:wrap;gap:8px 24px;align-items:center;font-size:13px;color:var(--muted)}
.footer-links{display:flex;flex-wrap:wrap;gap:6px 18px;flex-basis:100%}
.footer-links a{color:var(--ink);text-decoration:none}
.footer-links a:hover{text-decoration:underline}

@media (max-width:900px){
 .hero{grid-template-columns:1fr;padding:40px 0;gap:36px}
 .mini-body{width:220px}
 .features{grid-template-columns:1fr 1fr}
 .features>div:nth-child(3){padding-left:0;border-left:0}
 .features>div:nth-child(n+3){border-top:1px solid var(--line)}
 .plans,.flow{grid-template-columns:1fr}
}
@media (max-width:700px){
 .site-panel{padding:0 16px}
 .site-header{flex-direction:column;align-items:flex-start;gap:14px}
 .header-tools{width:100%;justify-content:space-between;gap:12px;flex-wrap:wrap}
 .nav{gap:16px}
 .features{grid-template-columns:1fr}
 .features>div,.features>div+div{padding:18px 0;border-left:0}
 .features>div+div{border-top:1px solid var(--line)}
 .block{padding-top:56px}
 .block-head h2{font-size:24px}
 .plan,.contact-band,#contact-form{padding:22px}
 .company-table{grid-template-columns:1fr}
 .company-table dt{border-bottom:0;padding-bottom:0}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.hero-price strong small{font-size:8px;font-weight:600;margin-left:2px;color:var(--muted)}