/* Pure SEO — 静的サイト用スタイル */
:root{
  --ink:#16262b;--ink-2:#44555b;--paper:#f6f9f8;--surface:#fff;
  --teal:#0f6f6b;--teal-brand:#3eaca8;--mint:#e2f1ef;--navy:#22313f;--line:#d5e2e0;--warn:#b3402f;
  --serif:"Hiragino Mincho ProN","Yu Mincho","Noto Serif JP","MS PMincho",serif;
  --sans:"Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic UI","Yu Gothic","Meiryo",sans-serif;
  --bar:1120px;
}
*{box-sizing:border-box}
html{scroll-padding-top:5rem;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);line-height:1.9;font-size:1rem;overflow-wrap:anywhere}
img{max-width:100%;height:auto}
a{color:var(--teal);text-underline-offset:.2em}
a:hover{color:#0a4f4c}
:focus-visible{outline:3px solid var(--teal-brand);outline-offset:2px}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:.6rem 1rem;z-index:100}
.skip:focus{left:0}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.bar{max-width:var(--bar);margin:0 auto;padding:0 1.25rem}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(6px)}
.site-header .bar{display:flex;align-items:center;justify-content:space-between;min-height:4rem}
.logo{display:flex;align-items:baseline;gap:.6rem;text-decoration:none;color:var(--ink)}
.logo-en{font-family:var(--serif);font-weight:700;font-size:1.45rem;letter-spacing:.02em;margin:0}
.logo-ja{font-size:.75rem;color:var(--ink-2)}
.menu nav{display:flex;align-items:center;gap:1.5rem}
.menu nav a{color:var(--ink);text-decoration:none;font-size:.9rem;padding:.4rem 0;border-bottom:2px solid transparent}
.menu nav a:hover,.menu nav a[aria-current]{border-bottom-color:var(--teal-brand)}
.menu nav .nav-cta{background:var(--teal);color:#fff;border:0;padding:.55rem 1.1rem;border-radius:2px;font-weight:700}
.menu nav .nav-cta:hover{background:#0a4f4c;color:#fff}
.burger{display:none;cursor:pointer;width:2.75rem;height:2.75rem;position:relative}
.burger span,.burger span::before,.burger span::after{position:absolute;left:.7rem;width:1.35rem;height:2px;background:var(--ink);content:"";transition:transform .2s}
.burger span{top:1.3rem}.burger span::before{top:-.4rem;left:0}.burger span::after{top:.4rem;left:0}
#menu-toggle:checked~.burger span{background:transparent}
#menu-toggle:checked~.burger span::before{transform:translateY(.4rem) rotate(45deg)}
#menu-toggle:checked~.burger span::after{transform:translateY(-.4rem) rotate(-45deg)}
#menu-toggle:focus-visible~.burger{outline:3px solid var(--teal-brand)}
.menu{position:static}
@media(max-width:860px){
  .burger{display:block}
  .menu nav{position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;gap:0;background:#fff;border-bottom:1px solid var(--line);padding:.5rem 1.25rem 1.25rem}
  #menu-toggle:not(:checked)~nav{display:none}
  .menu nav a{padding:.9rem 0;border-bottom:1px solid var(--line)}
  .menu nav .nav-cta{margin-top:1rem;text-align:center}
}

/* ---------- buttons ---------- */
.btn{display:inline-block;background:var(--teal);color:#fff;border:2px solid var(--teal);padding:.8rem 1.8rem;font:inherit;font-weight:700;text-decoration:none;border-radius:2px;cursor:pointer;line-height:1.4}
.btn:hover{background:#0a4f4c;border-color:#0a4f4c;color:#fff}
.btn-ghost{background:transparent;color:var(--teal)}
.btn-ghost:hover{background:var(--teal);color:#fff}

/* ---------- top page ---------- */
.hero{background:linear-gradient(180deg,var(--mint),var(--paper));padding:4rem 0 3.5rem}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:3rem;align-items:center}
.hero h1{font-family:var(--serif);font-size:clamp(2rem,4.4vw,3.2rem);line-height:1.4;margin:0 0 1.5rem;letter-spacing:.02em}
.hero-lead{max-width:34rem;color:var(--ink-2);margin:0 0 2rem}
.hero-actions{display:flex;flex-wrap:wrap;gap:1rem;margin:0}
.hero-fig{margin:0}
.hero-fig img{display:block;width:100%;border:1px solid var(--line);box-shadow:12px 12px 0 var(--teal-brand)}
@media(max-width:860px){.hero{padding:2.5rem 0}.hero-grid{grid-template-columns:minmax(0,1fr);gap:2.5rem}.hero-fig img{box-shadow:8px 8px 0 var(--teal-brand)}}

.sec{padding:5rem 0}
.sec-title{font-family:var(--serif);font-size:clamp(1.5rem,3vw,2rem);line-height:1.5;margin:0 0 1.25rem}
.sec-lead{max-width:44rem;color:var(--ink-2);margin:0 0 3rem}
.feature{margin:0}
.feature>div{display:grid;grid-template-columns:15rem 1fr;gap:2rem;padding:2rem 0;border-top:1px solid var(--line)}
.feature>div:last-child{border-bottom:1px solid var(--line)}
.feature dt{font-family:var(--serif);font-weight:700;font-size:1.15rem;line-height:1.6}
.feature dd{margin:0;max-width:42rem}
.feature dd p{margin:0 0 1em}
.tools{display:flex;flex-wrap:wrap;gap:1.5rem 2rem;align-items:center;list-style:none;margin:1.5rem 0 0;padding:1.1rem 1.5rem;background:var(--navy)}
.tools li{display:flex;align-items:center}
.tools img{display:block;max-height:2.4rem;width:auto}
.inline-fig{margin:0 0 1.25rem}
@media(max-width:860px){.feature>div{grid-template-columns:minmax(0,1fr);gap:.75rem}.sec{padding:3.5rem 0}}

.sec-dark{background:var(--navy);color:#e9f0f2}
.sec-dark .sec-title{color:#fff}.sec-dark .sec-lead{color:#c3d1d6}
.compare{display:grid;grid-template-columns:1fr 1fr;gap:3rem}
.compare h3{font-family:var(--serif);font-size:1.25rem;margin:0 0 .75rem;padding-bottom:.6rem;border-bottom:3px solid var(--teal-brand)}
.compare>div:last-child h3{border-bottom-color:#d9826f}
.compare p{margin:0 0 1em}
.band-fig{margin:3rem 0 0}.band-fig img{display:block;max-width:560px;width:100%;margin:0 auto;border:1px solid rgba(255,255,255,.2)}
@media(max-width:860px){.compare{grid-template-columns:minmax(0,1fr);gap:2rem}}

.table-wrap{overflow-x:auto;position:relative}
.plans{width:100%;border-collapse:collapse;min-width:34rem;background:var(--surface)}
.plans th,.plans td{padding:1rem;border:1px solid var(--line);text-align:center}
.plans thead th{background:var(--navy);color:#fff;font-family:var(--serif);font-size:1.05rem}
.plans tbody th{text-align:left;font-weight:700;background:var(--mint);width:28%}
.price-row td{font-family:var(--serif);font-size:1.4rem;font-weight:700;color:var(--ink)}
.price-row small{display:block;font-family:var(--sans);font-size:.75rem;font-weight:400;color:var(--ink-2)}
.plans td.yes::before,.plans td.no::before{content:"";display:inline-block;width:1.2rem;height:1.2rem;background:center/contain no-repeat}
.plans td.yes::before{background-image:url(/assets/theme/check.svg)}
.plans td.no::before{background-image:url(/assets/theme/cross.svg);opacity:.35}
.more{margin:2rem 0 0}
.more .dot{display:inline-block;width:1px;height:.9em;background:var(--line);margin:0 1rem;vertical-align:middle}

.sec-tint{background:var(--mint)}
.split{display:grid;grid-template-columns:1.2fr .8fr;gap:3rem;align-items:center}
.mini dt{font-family:var(--serif);font-weight:700;font-size:1.1rem;margin-top:1.5rem}
.mini dt:first-child{margin-top:0}
.mini dd{margin:.25rem 0 0}
.domain-fig{margin:0}.domain-fig img{display:block;width:100%;max-width:420px;margin:0 auto}
@media(max-width:860px){.split{grid-template-columns:minmax(0,1fr)}}

.rows{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.rows li{border-bottom:1px solid var(--line)}
.rows a{display:grid;grid-template-columns:6.5rem 1fr auto;gap:1.25rem;align-items:baseline;padding:1rem .25rem;text-decoration:none;color:var(--ink)}
.rows a:hover{background:var(--mint)}
.rows time{font-size:.85rem;color:var(--ink-2);font-variant-numeric:tabular-nums}
.row-title{font-weight:700;line-height:1.6}
.row-cat{font-size:.78rem;color:var(--teal);border:1px solid var(--teal);padding:0 .6rem;border-radius:2px;white-space:nowrap}
@media(max-width:640px){.rows a{grid-template-columns:minmax(0,1fr);gap:.2rem}.row-cat{justify-self:start}}

.cta{display:flex;align-items:center;justify-content:space-between;gap:2rem;background:var(--navy);color:#e9f0f2;padding:2rem 2.25rem;margin:4rem 0 0}
.cta p{margin:0}.cta-title{font-family:var(--serif);font-size:1.3rem;font-weight:700;color:#fff;margin-bottom:.4rem!important}
.cta .btn{background:#fff;color:var(--navy);border-color:#fff;white-space:nowrap}
.cta .btn:hover{background:var(--teal-brand);border-color:var(--teal-brand);color:#fff}
.sec-cta{padding:0 0 5rem}.sec-cta .cta{margin:0}
@media(max-width:700px){.cta{flex-direction:column;align-items:flex-start;padding:1.5rem}}

/* ---------- page / article ---------- */
.page{max-width:820px;margin:0 auto;padding:3rem 1.25rem 5rem}
.page .lead{color:var(--ink-2);margin:0 0 2rem}
.page h1,.post h1{font-family:var(--serif);font-size:clamp(1.6rem,3.2vw,2.2rem);line-height:1.5;margin:0 0 1rem}
.post-grid{max-width:var(--bar);margin:0 auto;padding:3rem 1.25rem 5rem;display:grid;grid-template-columns:minmax(0,1fr) 16rem;gap:3.5rem;align-items:start}
.post{max-width:46rem}
.crumb{font-size:.8rem;color:var(--ink-2);margin:0 0 1rem}
.crumb a{color:var(--ink-2)}.crumb span{margin:0 .5rem;color:var(--line)}
.post-date{font-size:.85rem;color:var(--ink-2);margin:0 0 2rem;padding-bottom:1.25rem;border-bottom:1px solid var(--line)}
.side{position:sticky;top:5.5rem;font-size:.88rem}
.side-h{font-weight:700;margin:0 0 .6rem;padding-bottom:.4rem;border-bottom:2px solid var(--teal-brand)}
.toc,.side-cats{margin-bottom:2rem}
.toc ol,.side-cats ul{list-style:none;margin:0;padding:0}
.toc li a,.side-cats li a{display:block;padding:.35rem 0;color:var(--ink);text-decoration:none;line-height:1.6}
.toc li a:hover,.side-cats li a:hover{color:var(--teal)}
.toc .toc-3 a{padding-left:1rem;color:var(--ink-2);font-size:.82rem}
.side-cats a[aria-current]{font-weight:700;color:var(--teal)}
@media(max-width:980px){.post-grid{grid-template-columns:minmax(0,1fr)}.side{position:static;order:2}}
@media(min-width:981px){.post .table-contents{display:none}}

.main_text h2{font-family:var(--serif);font-size:1.55rem;line-height:1.5;margin:4rem 0 1.5rem;padding-bottom:.6rem;border-bottom:2px solid var(--teal-brand)}
.main_text h3{font-family:var(--serif);font-size:1.25rem;line-height:1.6;margin:3rem 0 1rem;padding-left:.9rem;border-left:5px solid var(--teal-brand)}
.main_text h4{font-size:1.08rem;margin:2.25rem 0 .75rem}
.main_text h4::before{content:"";display:inline-block;width:.55em;height:.55em;background:var(--teal-brand);margin-right:.55em;vertical-align:.05em}
.main_text h5{font-size:1rem;margin:2rem 0 .5rem;border-bottom:1px dotted var(--teal-brand)}
.main_text p{margin:0 0 1.25em}
.main_text ul,.main_text ol{padding-left:1.4em}
.main_text li{margin:.2em 0}
.main_text img{display:block;margin:0 auto;height:auto}
.main_text .top-img-responsive,.main_text .img-responsive{max-width:768px;margin:2rem auto}
.main_text .stronger,.main_text strong{font-weight:700;color:inherit;background:linear-gradient(transparent 62%,#fdeea4 62%)}
.main_text blockquote{margin:2rem 0;padding:1.25rem 1.5rem;background:var(--mint);border-left:4px solid var(--teal-brand)}
.main_text pre{overflow:auto;background:#17212b;color:#e8eef2;padding:1.1rem 1.25rem;line-height:1.6;font-size:.88rem}
.main_text code{font-family:ui-monospace,Consolas,monospace;font-size:.92em}
.main_text :not(pre)>code{background:var(--mint);color:var(--ink);padding:.1em .4em;border-radius:2px}
.main_text pre code{color:inherit}
.main_text div.code{background:#e9eeee;padding:1rem;margin:2rem 0}
.main_text table{border-collapse:collapse;width:100%;margin:2rem 0;background:var(--surface)}
.main_text th,.main_text td{border:1px solid var(--line);padding:.7rem .9rem;vertical-align:top}
.main_text th{background:var(--mint);text-align:left}
.main_text .table-responsive,.main_text div.table{overflow-x:auto;margin:2rem 0}
.main_text .table-responsive table,.main_text div.table table{margin:0;min-width:32rem}
.main_text .dl-box,.main_text .list-box{border:1px solid var(--line);border-left:4px solid var(--teal-brand);background:var(--surface);padding:1.1rem 1.4rem;margin:2.25rem 0;list-style:none}
.main_text .dl-box dt{font-weight:700;margin-top:1rem}.main_text .dl-box dt:first-child{margin-top:0}
.main_text .dl-box dd{margin:.25rem 0 0}
.main_text .list-box li{margin:.3rem 0}
.main_text .outer-link::before{content:"▶";color:var(--teal-brand);margin-right:.5rem;font-size:.8em}
.main_text .table-contents{background:var(--surface);border:1px solid var(--line);padding:1rem 1.5rem;margin:2rem 0}
.main_text .table-contents-title{font-weight:700;margin:0 0 .5rem}
.main_text .table-contents-list{margin:0;padding-left:1.2em}
.main_text .inner_link{display:flex;gap:1rem;align-items:center;border:1px solid var(--line);background:var(--surface);padding:1rem;margin:2rem 0}
.main_text .inner_link_thumb img{margin:0;max-width:7rem}
.main_text .inner_link_title{font-weight:700}
.main_text .post-price-box{display:grid;grid-template-columns:repeat(auto-fit,minmax(15rem,1fr));gap:1.25rem;margin:2.5rem 0}
.main_text .post-price-box>div{position:relative;border:1px solid var(--line);background:var(--surface);padding:1.5rem 1.25rem}
.main_text .post-plan-name{font-family:var(--serif);font-weight:700;font-size:1.15rem;text-align:center;margin:0 0 1rem}
.main_text .plan-info ul{list-style:none;padding:0;margin:0}
.main_text .plan-info li{padding:.5rem 0 .5rem 1.9rem;border-bottom:1px dotted var(--line);font-weight:700;background:url(/assets/theme/check.svg) left center/1rem no-repeat}
.main_text .plan-info li.gray_out{background-image:url(/assets/theme/cross.svg);color:#9aa8ab;font-weight:400}
.main_text .most-pop-label{position:absolute;top:-1px;right:-1px;background:var(--teal);color:#fff;font-size:.72rem;padding:.2rem .7rem}
.main_text .most-pop-label .labels-holder,.main_text .most-pop-label .label-triangle{all:unset}
.main_text .label-text{all:unset}
.main_text .company_info th{width:30%}
.main_text section.pl dl dt{font-weight:700;margin-top:1.25rem}
.main_text section.pl dl dd{margin:.25rem 0 0}
.related{margin-top:4rem}
.related h2{margin-top:0!important}

/* ---------- footer ---------- */
.site-footer{background:var(--navy);color:#c3d1d6;padding:3.5rem 0 1.5rem;font-size:.9rem}
.site-footer a{color:#e9f0f2;text-decoration:none}.site-footer a:hover{text-decoration:underline}
.foot{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2.5rem}
.site-footer .logo-en{color:#fff;font-size:1.3rem;margin:0 0 .6rem}
.foot-note{margin:0;max-width:22rem;line-height:1.8}
.foot-h{color:#fff;font-weight:700;margin:0 0 .6rem}
.foot ul{list-style:none;margin:0;padding:0}.foot li{margin:.35rem 0}
.copy{max-width:var(--bar);margin:2.5rem auto 0;padding:1.25rem 1.25rem 0;border-top:1px solid rgba(255,255,255,.15);font-size:.78rem}
@media(max-width:700px){.foot{grid-template-columns:minmax(0,1fr);gap:1.75rem}}

/* ---------- form ---------- */
.field{margin:1.5rem 0}.field label{display:block;font-weight:700;margin-bottom:.4rem}
.req{background:var(--warn);color:#fff;font-size:.7rem;padding:.1rem .45rem;margin-left:.6rem;border-radius:2px;font-weight:400}
.input{width:100%;padding:.75rem;border:1px solid #9bb0ad;border-radius:2px;font:inherit;background:#fff}
.input:focus{outline:3px solid var(--teal-brand);outline-offset:0;border-color:var(--teal)}
.field-hint{font-size:.82rem;color:var(--ink-2)}.field-error{color:var(--warn);font-size:.88rem;font-weight:700;margin:.4rem 0 0}
.form-alert{background:#fbeae6;border:1px solid var(--warn);color:var(--warn);padding:.6rem 1rem;margin:1rem 0}
.hp{position:absolute;left:-9999px;height:0;overflow:hidden}
.thanks{text-align:center;padding:2rem 0}
.form-wrap{margin:1.5rem 0}.contact-iframe{display:block;width:100%;height:1250px;border:1px solid var(--line);background:#fff}

@media(max-width:600px){.page,.post-grid{padding-top:2rem}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}