:root{--blue:#1A56DB;--blue2:#3B82F6;--navy:#0B2551;--sky:#EAF2FF;--sky2:#F5F9FF;--ink:#0F172A;--ink2:#273449;--mut:#55657A;--line:#E2E8F0;--warn:#B45309}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:"Noto Sans JP","Hiragino Sans","Hiragino Kaku Gothic ProN",Meiryo,sans-serif;color:var(--ink);background:#fff;line-height:1.85;font-size:16px;-webkit-font-smoothing:antialiased;overflow-x:hidden;line-break:strict;overflow-wrap:anywhere}
img{display:block;max-width:100%;height:auto}
a{color:var(--blue)}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.wrap{padding:0 32px}}

/* header */
.hd{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.hd .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--navy);font-weight:800;font-size:19px;letter-spacing:.01em;white-space:nowrap}
.logo b{color:var(--blue)}
.logo small{font-size:11px;font-weight:500;color:var(--mut)}
.gnav{display:none}
.gnav ul{list-style:none;display:flex;gap:18px;align-items:center}
.gnav a{text-decoration:none;color:var(--ink2);font-size:14px;font-weight:600;white-space:nowrap}
.gnav a:hover,.gnav a[aria-current],.gnav a.on{color:var(--blue)}
.gnav .cta,.mnav .cta{background:var(--blue);color:#fff;padding:9px 16px;border-radius:999px}
.gnav .cta:hover{background:var(--navy);color:#fff}
.mbtn{display:flex;align-items:center;justify-content:center;width:44px;height:44px;border:0;background:none;cursor:pointer}
.mbtn span,.mbtn span::before,.mbtn span::after{display:block;width:22px;height:2px;background:var(--navy);position:relative;content:""}
.mbtn span::before{position:absolute;top:-7px}.mbtn span::after{position:absolute;top:7px}
.mnav{display:none;border-top:1px solid var(--line);background:#fff}
.mnav.open{display:block}
.mnav ul{list-style:none;padding:8px 20px 20px}
.mnav li a{display:block;padding:12px 0;border-bottom:1px solid var(--line);text-decoration:none;color:var(--ink);font-weight:600}
.mnav li:last-child a{border:0;margin-top:14px;text-align:center}
@media(min-width:1240px){.gnav{display:block}.mbtn,.mnav,.mnav.open{display:none}}
@media(min-width:1240px) and (max-width:1439px){.logo small{display:none}}
.nw{display:inline-block}

/* breadcrumb */
.bc{font-size:12.5px;color:var(--mut);padding-top:14px}
.bc ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px}
.bc li+li::before{content:"›";margin-right:6px}
.bc a{color:var(--mut)}

/* type */
h1{font-size:clamp(27px,4.4vw,46px);line-height:1.38;font-weight:800;letter-spacing:.01em;color:var(--navy)}
h2{font-size:clamp(22px,3vw,32px);line-height:1.5;font-weight:800;color:var(--navy);margin-bottom:18px}
h3{font-size:18px;line-height:1.55;font-weight:700;color:var(--ink);margin-bottom:8px}
p+p{margin-top:12px}
.lead{font-size:clamp(15.5px,1.6vw,18px);color:var(--ink2);margin-top:16px}
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--blue);background:var(--sky);padding:5px 12px;border-radius:999px;margin-bottom:14px}
section{padding:64px 0}
@media(min-width:768px){section{padding:88px 0}}
.alt{background:var(--sky2)}
.muted{color:var(--mut);font-size:14px}

/* page hero */
.phero{padding:28px 0 40px;background:linear-gradient(180deg,#fff,var(--sky2))}
.phero .grid{display:grid;gap:28px;align-items:center;margin-top:18px}
.phero img{border-radius:18px;aspect-ratio:16/10;object-fit:cover;width:100%}
@media(min-width:900px){.phero .grid{grid-template-columns:1.1fr .9fr;gap:48px}.phero{padding:28px 0 64px}}

/* summary */
.summary{margin-top:24px;background:#fff;border:1px solid var(--line);border-left:4px solid var(--blue);border-radius:12px;padding:18px 20px}
.summary strong{display:block;font-size:13px;color:var(--blue);letter-spacing:.08em;margin-bottom:6px}
.summary ul{list-style:none}
.summary li{position:relative;padding-left:18px;font-size:15px;line-height:1.75}
.summary li+li{margin-top:6px}
.summary li::before{content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--blue)}

/* top hero */
.hero{padding:40px 0 56px;background:linear-gradient(180deg,#fff 0,var(--sky2) 100%)}
.hero .grid{display:grid;gap:32px;align-items:center}
.hero h1{font-size:clamp(28px,3.6vw,50px)}
.hero h1 .hl{color:var(--blue)}
.collage{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.collage figure{position:relative;border-radius:14px;overflow:hidden}
.collage figure:first-child{grid-column:1/3}
.collage img{width:100%;aspect-ratio:16/9;object-fit:cover}
.collage figure:not(:first-child) img{aspect-ratio:4/3}
.collage figcaption{position:absolute;left:8px;bottom:8px;background:rgba(11,37,81,.78);color:#fff;font-size:11.5px;padding:3px 9px;border-radius:999px}
.btns{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 24px;border-radius:999px;font-weight:700;text-decoration:none;font-size:15px}
.btn.p{background:var(--blue);color:#fff}.btn.p:hover{background:var(--navy)}
.btn.s{background:#fff;color:var(--blue);border:1.5px solid var(--blue)}
@media(min-width:900px){.hero{padding:64px 0 88px}.hero .grid{grid-template-columns:1.05fr .95fr;gap:56px}}

/* cards */
.cards{display:grid;gap:18px}
@media(min-width:768px){.cards.c2{grid-template-columns:1fr 1fr}.cards.c3{grid-template-columns:repeat(3,1fr)}}
@media(min-width:768px) and (max-width:1023px){.cards.c3{grid-template-columns:1fr 1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column}
.card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.card .in{padding:20px 22px 24px;flex:1;display:flex;flex-direction:column}
.card .tag{font-size:12px;font-weight:700;color:var(--blue);letter-spacing:.06em;margin-bottom:6px}
.card p{font-size:15px;color:var(--ink2)}
.card .more{margin-top:auto;padding-top:14px;font-weight:700;font-size:14.5px;text-decoration:none}

/* steps */
.steps{list-style:none;counter-reset:s;display:grid;gap:14px}
@media(min-width:768px){.steps.h{grid-template-columns:repeat(4,1fr)}}
.steps li{counter-increment:s;background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 20px 20px 66px;position:relative}
.steps li::before{content:counter(s,decimal-leading-zero);position:absolute;left:18px;top:18px;width:34px;height:34px;border-radius:50%;background:var(--blue);color:#fff;font-weight:700;font-size:13px;display:flex;align-items:center;justify-content:center}
.steps li p{font-size:14.5px;color:var(--ink2)}

/* tables */
.tbl{width:100%;border-collapse:collapse;font-size:15px;background:#fff}
.tbl caption{text-align:left;font-weight:700;color:var(--navy);padding:0 0 10px;font-size:16px}
.tbl th,.tbl td{border-bottom:1px solid var(--line);padding:12px 12px;text-align:left;vertical-align:top}
.tbl thead th{background:var(--sky);color:var(--navy);font-size:13.5px;white-space:nowrap}
.tbl tbody th{font-weight:700;color:var(--ink);width:34%}
.tblw{overflow-x:auto;border:1px solid var(--line);border-radius:12px;margin-top:18px}
.tblw .tbl caption{padding:14px 14px 4px}
.tbl .pill{display:inline-block;font-size:12px;font-weight:700;color:var(--blue);background:var(--sky);border-radius:999px;padding:2px 9px;margin-left:6px;white-space:nowrap}
@media(max-width:600px){.tbl{font-size:14px}.tbl th,.tbl td{padding:10px 10px}}

/* gallery */
.gal{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:24px}
@media(min-width:900px){.gal{grid-template-columns:repeat(3,1fr);gap:14px}}
.gal figure{margin:0}
.gal img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:12px}
.gal figcaption{font-size:12.5px;color:var(--mut);margin-top:6px}

/* split */
.split{display:grid;gap:28px;align-items:center}
.split img{border-radius:16px;width:100%;aspect-ratio:4/3;object-fit:cover}
@media(min-width:900px){.split{grid-template-columns:1fr 1fr;gap:56px}.split.rev>:first-child{order:2}}

/* checklist */
.chk{list-style:none;margin-top:14px}
.chk li{position:relative;padding-left:28px;margin-top:10px;font-size:15.5px}
.chk li::before{content:"";position:absolute;left:0;top:.45em;width:16px;height:16px;border-radius:50%;background:var(--sky) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.5l2.5 2.5L12 5.5' fill='none' stroke='%231A56DB' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/12px no-repeat}

/* timeline */
.days{display:grid;gap:16px;margin-top:22px}
@media(min-width:900px){.days.d4{grid-template-columns:repeat(4,1fr)}.days.d5{grid-template-columns:repeat(5,1fr)}}
.day{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 18px 20px}
.day .dn{font-size:12px;font-weight:800;letter-spacing:.12em;color:var(--blue)}
.day h3{margin:4px 0 10px}
.day ul{list-style:none}
.day li{font-size:14.5px;color:var(--ink2);padding:6px 0;border-top:1px dashed var(--line)}
.day li b{display:block;font-size:12px;color:var(--mut);font-weight:700;letter-spacing:.04em}
.day .stay{margin-top:10px;font-size:12.5px;color:var(--navy);background:var(--sky);border-radius:8px;padding:6px 10px}

/* note */
.note{margin-top:22px;background:#FFF8EB;border:1px solid #F5DDB0;border-radius:12px;padding:14px 18px;font-size:14px;color:#5B4210}
.note.blue{background:var(--sky);border-color:#C9DBFB;color:var(--navy)}

/* faq */
.faq{margin-top:10px}
.faq details{border-bottom:1px solid var(--line);background:#fff}
.faq details:first-child{border-top:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:18px 40px 18px 34px;position:relative;font-weight:700;font-size:16px;line-height:1.6}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"Q";position:absolute;left:4px;top:17px;color:var(--blue);font-weight:800}
.faq summary::after{content:"+";position:absolute;right:8px;top:14px;font-size:22px;color:var(--blue);font-weight:400}
.faq details[open] summary::after{content:"−"}
.faq .a{padding:0 8px 20px 34px;color:var(--ink2);font-size:15px}

/* cta band */
.ctab{background:var(--navy);color:#fff;border-radius:20px;padding:36px 24px;text-align:center}
.ctab h2{color:#fff}
.ctab p{color:#D6E2F7}
.ctab .btns{justify-content:center}
.ctab .btn.s{background:transparent;color:#fff;border-color:#fff}
@media(min-width:768px){.ctab{padding:52px 48px}}

/* links */
.rel{display:grid;gap:10px;margin-top:16px}
@media(min-width:768px){.rel{grid-template-columns:repeat(3,1fr)}}
.rel a{display:block;border:1px solid var(--line);border-radius:12px;padding:14px 16px;text-decoration:none;font-weight:700;color:var(--navy);background:#fff}
.rel a span{display:block;font-weight:400;font-size:13px;color:var(--mut)}
.rel a:hover{border-color:var(--blue)}

/* form */
.form{display:grid;gap:18px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px}
@media(min-width:768px){.form{padding:32px;grid-template-columns:1fr 1fr}.form .full{grid-column:1/3}}
.form label{display:block;font-weight:700;font-size:14.5px;margin-bottom:6px}
.form .req{color:#C2410C;font-size:12px;margin-left:6px}
.form .opt{color:var(--mut);font-size:12px;font-weight:500;margin-left:6px}
.form input[type=text],.form input[type=email],.form select,.form textarea{width:100%;font:inherit;font-size:16px;border:1px solid #CBD5E1;border-radius:10px;padding:11px 12px;background:#fff;color:var(--ink)}
.form textarea{min-height:140px;resize:vertical}
.form fieldset{border:0}
.form legend{font-weight:700;font-size:14.5px;margin-bottom:6px}
.form .ck{display:flex;flex-wrap:wrap;gap:10px}
.form .ck label{display:flex;align-items:center;gap:8px;font-weight:500;border:1px solid #CBD5E1;border-radius:999px;padding:8px 14px;margin:0;cursor:pointer}
.form button{font:inherit;font-weight:700;font-size:16px;background:var(--blue);color:#fff;border:0;border-radius:999px;min-height:52px;padding:0 32px;cursor:pointer;width:100%}
.form button:disabled{opacity:.6}
.thanks{display:none;background:var(--sky);border:1px solid #C9DBFB;border-radius:16px;padding:28px;text-align:center}
.thanks.show{display:block}
.hp{position:absolute;left:-9999px}

/* footer */
.ft{background:#0A1B3A;color:#B9C6DD;padding:48px 0 36px;font-size:13.5px;margin-top:0}
.ft .grid{display:grid;gap:28px}
@media(min-width:900px){.ft .grid{grid-template-columns:1.3fr 1fr}}
.ft .logo{color:#fff}
.ft .logo b{color:#8DB4FF}
.ft a{color:#DCE6F7}
.ft dl{display:grid;grid-template-columns:auto 1fr;gap:4px 14px;margin-top:14px}
.ft dt{color:#8FA0BD}
.ft ul{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:6px 16px}
.ft .disc{margin-top:28px;padding-top:20px;border-top:1px solid #23365C;font-size:12.5px;line-height:1.8;color:#97A6C0}
.ft .op{display:flex;align-items:center;gap:10px;margin-top:16px}
.ft .op img{height:18px;width:auto}

/* logo image (POLABS) */
.logo img{height:26px;width:auto}
.ft .logo img{height:24px}
.ft .fh{color:#fff;font-weight:700;font-size:13px;letter-spacing:.06em;margin:0 0 8px}
.ft ul+.fh{margin-top:18px}

/* article (keyword pages) */
.narrow{max-width:880px}
.pub{margin-top:14px;font-size:12.5px;color:var(--mut)}
.art{padding-top:40px}
.art h2{margin-top:56px}
.art h2:first-child{margin-top:0}
.art h3{margin-top:26px}
.art p{margin-top:12px}
.art ul:not(.chk),.art ol:not(.steps){margin:12px 0 0 1.4em}
.art ul:not(.chk) li,.art ol:not(.steps) li{margin-top:6px}
.art .steps,.art .tblw,.art .chk{margin-top:18px}
.dg{margin:26px 0 8px;background:var(--sky2);border:1px solid var(--line);border-radius:14px;padding:16px}
.dg svg{display:block;width:100%;height:auto}
.dg figcaption{font-size:12.5px;color:var(--mut);margin-top:8px}
.key{margin-top:20px;background:var(--sky);border:1px solid #C9DBFB;border-radius:12px;padding:14px 18px;font-size:15px;color:var(--navy)}
.key b{display:block;margin-bottom:4px}
.rel.kw{grid-template-columns:1fr}
@media(min-width:768px){.rel.kw{grid-template-columns:1fr 1fr}}

/* 診療科 cards */
.dept .card .tag{font-size:12px}
.dept .card .kws{font-size:13px;color:var(--mut);margin-top:8px}