/* ==========================================================================
   株式会社プロテレコムズ コーポレートサイト
   共通スタイル
   ========================================================================== */

:root{
  --navy:#0F2540;
  --navy-2:#17385E;
  --navy-soft:#5A6E88;
  --accent:#1D63C9;
  --accent-2:#3F86EC;
  --accent-wash:#EAF1FC;
  --ink:#12202F;
  --ink-2:#4A5A6D;
  --ink-3:#7A8798;
  --paper:#FFFFFF;
  --paper-2:#F5F7FA;
  --paper-3:#EDF1F6;
  --line:#DDE4EC;
  --line-2:#C9D3DF;
  --ok:#12805C;
  --warn:#B5761B;

  --r-s:6px;
  --r:10px;
  --r-l:16px;
  --shadow:0 1px 2px rgba(15,37,64,.04), 0 10px 30px rgba(15,37,64,.06);
  --shadow-h:0 2px 6px rgba(15,37,64,.06), 0 18px 44px rgba(15,37,64,.11);

  --sans:"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic UI",system-ui,sans-serif;
  --en:"Inter",var(--sans);

  --wrap:1140px;
  --gut:24px;
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth}

body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.9;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}

img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.45;margin:0;font-weight:700;letter-spacing:.01em}
p{margin:0}
ul,ol{margin:0}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 var(--gut)}
.narrow{max-width:840px}

/* --- skip link ---------------------------------------------------------- */
.skip{position:absolute;left:-9999px;top:0;background:var(--navy);color:#fff;padding:10px 16px;z-index:200}
.skip:focus{left:8px;top:8px}

/* --- header ------------------------------------------------------------- */
.site-head{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.88);
  backdrop-filter:saturate(160%) blur(10px);
  -webkit-backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
}
.site-head .wrap{display:flex;align-items:center;gap:20px;height:68px}

.logo{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}
.logo:hover{text-decoration:none}
.logo .mark{
  width:34px;height:34px;border-radius:8px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--navy) 0%,var(--accent) 100%);
  display:grid;place-items:center;
}
.logo .mark svg{width:18px;height:18px;display:block}
.logo .txt b{
  display:block;font-family:var(--en);font-weight:700;font-size:.95rem;
  letter-spacing:.08em;color:var(--navy);line-height:1.15;
}
.logo .txt span{
  display:block;font-size:.62rem;letter-spacing:.16em;color:var(--ink-3);
  line-height:1.2;margin-top:2px;
}

.nav{margin-left:auto;display:flex;align-items:center;gap:4px}
.nav a{
  font-size:.86rem;font-weight:500;color:var(--ink-2);
  padding:9px 13px;border-radius:var(--r-s);white-space:nowrap;
  transition:color .16s, background .16s;
}
.nav a:hover{color:var(--navy);background:var(--paper-2);text-decoration:none}
.nav a[aria-current="page"]{color:var(--accent);font-weight:700}

/* ナビ内のCTAはボタンの見た目を優先する（.nav a の色・余白に負けないよう明示） */
.nav a.btn,
.nav a.btn:hover,
.nav a.btn[aria-current="page"]{color:#fff;font-weight:700}
.nav a.btn.btn-sm{padding:10px 16px}
.nav a.btn-primary:hover{background:var(--accent-2)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:inherit;font-size:.88rem;font-weight:700;line-height:1;
  padding:13px 22px;border-radius:var(--r-s);border:1px solid transparent;
  cursor:pointer;transition:background .16s, color .16s, border-color .16s, transform .16s, box-shadow .16s;
  text-decoration:none;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-2);box-shadow:0 8px 20px rgba(29,99,201,.28)}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy-2);box-shadow:0 8px 20px rgba(15,37,64,.26)}
.btn-ghost{background:transparent;color:var(--navy);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--navy);background:var(--paper-2)}
.btn-onnavy{background:#fff;color:var(--navy)}
.btn-onnavy:hover{background:var(--accent-wash)}
.btn-sm{padding:10px 16px;font-size:.82rem}

.nav-cta{margin-left:8px}

/* --- mobile nav --------------------------------------------------------- */
.navtoggle{
  display:none;margin-left:auto;width:42px;height:42px;border:1px solid var(--line);
  background:#fff;border-radius:var(--r-s);cursor:pointer;padding:0;
  align-items:center;justify-content:center;
}
.navtoggle span{display:block;width:18px;height:2px;background:var(--navy);position:relative}
.navtoggle span::before,.navtoggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--navy);
}
.navtoggle span::before{top:-6px}
.navtoggle span::after{top:6px}

/* --- hero --------------------------------------------------------------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(165deg,#0C1E36 0%,#12304F 46%,#17456F 100%);
  color:#fff;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(680px 420px at 88% 8%, rgba(63,134,236,.30), transparent 62%),
    radial-gradient(520px 380px at 4% 96%, rgba(29,99,201,.22), transparent 64%);
}
.hero .wrap{position:relative;z-index:2;padding-top:86px;padding-bottom:86px}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}

.eyebrow{
  display:inline-block;font-family:var(--en);font-size:.68rem;font-weight:600;
  letter-spacing:.24em;text-transform:uppercase;
  color:var(--accent-2);margin-bottom:20px;
}
.hero .eyebrow{color:#8DB9F5}

.hero h1{
  font-size:clamp(1.8rem,4.1vw,2.75rem);
  line-height:1.36;letter-spacing:.005em;margin:0 0 22px;
}
.hero h1 em{font-style:normal;color:#8DB9F5}
.hero-lead{font-size:1rem;line-height:2.05;color:#C4D3E6;max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}

.hero-art{position:relative;display:grid;place-items:center;min-height:280px}
.hero-art svg{width:100%;max-width:400px;height:auto;display:block}

/* --- stat band ---------------------------------------------------------- */
.statband{background:var(--navy);color:#fff;border-top:1px solid rgba(255,255,255,.09)}
.statband .wrap{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:1px;background:rgba(255,255,255,.11);
  padding:0;max-width:var(--wrap);
}
.statband .cell{background:var(--navy);padding:30px 26px}
.statband .k{
  display:block;font-family:var(--en);font-size:.62rem;font-weight:600;
  letter-spacing:.2em;text-transform:uppercase;color:#7E97B5;margin-bottom:10px;
}
.statband .v{
  display:block;font-family:var(--en);font-weight:700;
  font-size:clamp(1.5rem,3vw,2rem);line-height:1.15;letter-spacing:-.01em;
}
.statband .v small{font-family:var(--sans);font-size:.82rem;font-weight:500;margin-left:5px;letter-spacing:0}
.statband .n{display:block;font-size:.74rem;color:#8FA6C0;margin-top:8px;line-height:1.6}

/* --- sections ----------------------------------------------------------- */
section{padding:88px 0}
.sec-tint{background:var(--paper-2)}
.sec-navy{background:var(--navy);color:#fff}

.sec-head{max-width:760px;margin-bottom:48px}
.sec-head h2{font-size:clamp(1.45rem,3.1vw,2.05rem);line-height:1.45;margin-bottom:16px}
.sec-head p{color:var(--ink-2);font-size:.96rem;line-height:2}
.sec-navy .sec-head p{color:#B7C8DC}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* --- cards -------------------------------------------------------------- */
.grid{display:grid;gap:22px}
.g-2{grid-template-columns:repeat(2,1fr)}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}

.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-l);
  padding:32px 30px;box-shadow:var(--shadow);
  transition:transform .18s, box-shadow .18s, border-color .18s;
  display:flex;flex-direction:column;
}
a.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-h);border-color:var(--line-2);text-decoration:none}
.card .idx{
  font-family:var(--en);font-size:.68rem;font-weight:700;letter-spacing:.18em;
  color:var(--accent);margin-bottom:16px;display:block;
}
.card h3{font-size:1.12rem;margin-bottom:14px;color:var(--ink)}
.card p{font-size:.9rem;line-height:1.95;color:var(--ink-2)}
.card .more{
  margin-top:auto;padding-top:20px;font-size:.84rem;font-weight:700;color:var(--accent);
  display:inline-flex;align-items:center;gap:6px;
}
.card .more::after{content:"→";transition:transform .16s}
a.card:hover .more::after{transform:translateX(3px)}

.icon{
  width:44px;height:44px;border-radius:11px;background:var(--accent-wash);
  display:grid;place-items:center;margin-bottom:20px;flex:0 0 auto;
}
.icon svg{width:22px;height:22px;stroke:var(--accent);fill:none;stroke-width:1.7;
  stroke-linecap:round;stroke-linejoin:round}

/* --- feature list ------------------------------------------------------- */
.flist{list-style:none;padding:0;display:grid;gap:14px}
.flist li{position:relative;padding-left:30px;font-size:.93rem;line-height:1.95;color:var(--ink-2)}
.flist li::before{
  content:"";position:absolute;left:4px;top:.72em;width:8px;height:8px;
  border-radius:50%;background:var(--accent);
}
.flist.check li::before{
  left:0;top:.44em;width:18px;height:18px;border-radius:50%;
  background:var(--accent-wash);
}
.flist.check li::after{
  content:"";position:absolute;left:5px;top:.78em;width:8px;height:4px;
  border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);
  transform:rotate(-45deg);
}

/* --- chart -------------------------------------------------------------- */
.chart{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-l);
  padding:32px 30px 26px;box-shadow:var(--shadow);
}
.chart-title{font-size:.95rem;font-weight:700;color:var(--ink);margin-bottom:6px}
.chart-note{font-size:.78rem;color:var(--ink-3);margin-bottom:28px;line-height:1.8}
.bars{display:flex;align-items:flex-end;gap:clamp(6px,1.6vw,18px);height:210px}
.bar{flex:1;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;height:100%}
.bar .fill{
  width:100%;border-radius:5px 5px 0 0;
  background:linear-gradient(180deg,var(--accent-2),var(--accent));
  min-height:5px;
}
.bar.peak .fill{background:linear-gradient(180deg,#5FA0F5,var(--navy-2))}
.bar .lb{font-family:var(--en);font-size:.66rem;color:var(--ink-3);margin-top:12px;white-space:nowrap}
.bar .tag{font-size:.66rem;color:var(--accent);font-weight:700;margin-bottom:7px;white-space:nowrap}
.chart-legend{
  display:flex;flex-wrap:wrap;gap:18px;margin-top:24px;padding-top:20px;
  border-top:1px solid var(--line);font-size:.78rem;color:var(--ink-2);
}
.chart-legend span{display:inline-flex;align-items:center;gap:7px}
.chart-legend i{width:11px;height:11px;border-radius:3px;background:var(--accent);display:block}
.chart-legend i.peak{background:var(--navy-2)}

/* --- table -------------------------------------------------------------- */
.tablewrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.info{
  width:100%;border-collapse:collapse;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-l);overflow:hidden;
  box-shadow:var(--shadow);
}
table.info th,table.info td{
  text-align:left;vertical-align:top;padding:17px 22px;
  border-bottom:1px solid var(--line);font-size:.92rem;line-height:1.85;
}
table.info tr:last-child th,table.info tr:last-child td{border-bottom:0}
table.info th{
  width:32%;min-width:150px;background:var(--paper-2);
  color:var(--navy);font-weight:700;
}
table.info td ol,table.info td ul{margin:0;padding-left:1.3em}
table.info td li{margin:.2em 0}

/* --- steps -------------------------------------------------------------- */
.steps{list-style:none;padding:0;counter-reset:s;display:grid;gap:0}
.steps li{
  counter-increment:s;position:relative;padding:0 0 34px 62px;
}
.steps li::before{
  content:counter(s,decimal-leading-zero);
  position:absolute;left:0;top:0;width:40px;height:40px;border-radius:50%;
  background:var(--accent);color:#fff;display:grid;place-items:center;
  font-family:var(--en);font-size:.82rem;font-weight:700;
}
.steps li::after{
  content:"";position:absolute;left:19px;top:44px;bottom:6px;width:2px;background:var(--line);
}
.steps li:last-child{padding-bottom:0}
.steps li:last-child::after{display:none}
.steps h3{font-size:1rem;margin-bottom:8px;padding-top:8px}
.steps p{font-size:.9rem;color:var(--ink-2);line-height:1.95}

/* --- notice ------------------------------------------------------------- */
.notice{
  background:var(--paper-2);border:1px solid var(--line);
  border-left:3px solid var(--navy);border-radius:var(--r);
  padding:22px 26px;font-size:.87rem;line-height:1.95;color:var(--ink-2);
}
.notice strong{color:var(--ink)}
.notice.accent{border-left-color:var(--accent);background:var(--accent-wash);border-color:#CBDDF7}

/* --- page head ---------------------------------------------------------- */
.pagehead{
  background:linear-gradient(160deg,#0C1E36 0%,#153A61 100%);
  color:#fff;padding:66px 0 62px;position:relative;overflow:hidden;
}
.pagehead::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(600px 360px at 92% 0%, rgba(63,134,236,.24), transparent 64%);
}
.pagehead .wrap{position:relative;z-index:2}
.pagehead h1{font-size:clamp(1.6rem,3.6vw,2.35rem);margin-bottom:14px}
.pagehead p{color:#B7C8DC;font-size:.95rem;line-height:1.95;max-width:44em}

.crumbs{font-size:.76rem;color:#8FA6C0;margin-bottom:22px}
.crumbs a{color:#B7C8DC}
.crumbs span{margin:0 8px;opacity:.55}

/* --- CTA band ----------------------------------------------------------- */
.ctaband{background:var(--navy);color:#fff;padding:74px 0}
.ctaband h2{font-size:clamp(1.3rem,2.9vw,1.8rem);margin-bottom:16px}
.ctaband p{color:#B7C8DC;font-size:.94rem;line-height:2;max-width:40em;margin-bottom:30px}
.ctaband .row{display:flex;flex-wrap:wrap;gap:12px}

/* --- partner promo ------------------------------------------------------ */
.promo{
  display:grid;grid-template-columns:1.25fr .75fr;gap:44px;align-items:center;
  background:linear-gradient(150deg,#12304F,#1B4B7C);
  border-radius:var(--r-l);padding:48px 46px;color:#fff;position:relative;overflow:hidden;
}
.promo::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(420px 300px at 96% 12%, rgba(99,163,247,.26), transparent 66%);
}
.promo > *{position:relative;z-index:2}
.promo h2{font-size:clamp(1.25rem,2.6vw,1.65rem);margin-bottom:16px}
.promo p{color:#C4D3E6;font-size:.92rem;line-height:2;margin-bottom:26px}
.promo .site{
  font-family:var(--en);font-size:.76rem;letter-spacing:.06em;color:#8DB9F5;
  margin-top:16px;display:block;
}
.promo-art{display:grid;place-items:center}
.promo-art svg{width:100%;max-width:230px;height:auto}

/* --- footer ------------------------------------------------------------- */
.site-foot{background:#0A1928;color:#93A6BC;padding:64px 0 34px;font-size:.86rem}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding-bottom:40px}
.foot-brand .logo .txt b{color:#fff}
.foot-brand .logo .txt span{color:#7E93AB}
.foot-brand p{margin-top:18px;font-size:.82rem;line-height:1.95;color:#7E93AB}
.site-foot h4{
  font-family:var(--en);font-size:.66rem;font-weight:600;letter-spacing:.2em;
  text-transform:uppercase;color:#5F7590;margin-bottom:16px;
}
.site-foot ul{list-style:none;padding:0;display:grid;gap:11px}
.site-foot a{color:#B4C4D6}
.site-foot a:hover{color:#fff}
.foot-bot{
  border-top:1px solid #16293D;padding-top:24px;
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  font-size:.76rem;color:#6C8199;
}
.foot-bot .links{display:flex;flex-wrap:wrap;gap:20px}

/* --- misc --------------------------------------------------------------- */
.lede{font-size:1.02rem;line-height:2.1;color:var(--ink-2)}
.prose p + p{margin-top:1.5em}
.prose h3{font-size:1.08rem;margin:2.4em 0 .9em}
.prose h3:first-child{margin-top:0}
.prose ul{padding-left:1.3em;color:var(--ink-2);font-size:.93rem;line-height:1.95}
.prose li{margin:.4em 0}
.mt-l{margin-top:44px}
.mt-m{margin-top:28px}
.tag{
  display:inline-block;font-size:.7rem;font-weight:700;letter-spacing:.08em;
  padding:5px 11px;border-radius:99px;background:var(--accent-wash);color:var(--accent);
}
/* カードは flex column（align-items:stretch）なので、明示しないとピルが横幅いっぱいに伸びる */
.card > .tag{align-self:flex-start}
.sec-navy .card{background:rgba(255,255,255,.045);border-color:rgba(255,255,255,.12);box-shadow:none}
.sec-navy .card h3{color:#fff}
.sec-navy .card p{color:#B7C8DC}

/* --- responsive --------------------------------------------------------- */
@media (max-width:1000px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-art{order:-1;min-height:0}
  .hero-art svg{max-width:280px}
  .promo{grid-template-columns:1fr;gap:32px;padding:40px 32px}
  .promo-art{display:none}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .g-4{grid-template-columns:repeat(2,1fr)}
}

@media (max-width:860px){
  .nav{
    display:none;position:absolute;top:68px;left:0;right:0;
    background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:0;padding:10px var(--gut) 20px;
    box-shadow:0 18px 34px rgba(15,37,64,.10);
  }
  .nav.open{display:flex}
  .nav a{padding:14px 4px;border-bottom:1px solid var(--paper-3);border-radius:0}
  .nav a:hover{background:transparent}
  .nav-cta{margin:16px 0 0}
  .navtoggle{display:flex}
  .statband .wrap{grid-template-columns:repeat(2,1fr)}
  .g-3,.g-2{grid-template-columns:1fr}
  section{padding:64px 0}
  .hero .wrap{padding-top:62px;padding-bottom:62px}
}

@media (max-width:560px){
  :root{--gut:18px}
  body{font-size:15px}
  .statband .wrap{grid-template-columns:1fr}
  .statband .cell{padding:24px 20px}
  .g-4{grid-template-columns:1fr}
  .card{padding:26px 22px}
  .chart{padding:24px 18px 20px}
  .bars{height:170px}
  .bar .tag{display:none}
  .foot-grid{grid-template-columns:1fr;gap:30px}
  .steps li{padding-left:52px}
  table.info th{width:38%;min-width:110px;padding:14px 14px}
  table.info td{padding:14px 14px}
  .promo{padding:32px 22px}
}