/* ZipBridge website — brand: blue -> teal (matches app icon) */
:root{
  --blue:#2b56e8; --teal:#10c4b8; --ink:#1c2842; --sub:#5a6882;
  --bg:#f7f9fc; --card:#ffffff; --line:#e6ebf3;
  --grad:linear-gradient(135deg,#2b56e8 0%,#10c4b8 100%);
  --radius:18px; --maxw:1080px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;color:var(--ink);background:var(--bg);
  font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP",sans-serif;
  line-height:1.7;-webkit-font-smoothing:antialiased;
  /* 日本語の改行: 禁則処理を厳格化し、行頭に句読点が来ないようにする */
  line-break:strict;
  word-break:normal;
  overflow-wrap:break-word;
}
/* 見出しは行のバランスを取り、本文は最終行の孤立文字(例「ル。」)を避ける */
h1,h2,h3,.brand{text-wrap:balance}
p,li,.lead,.sub,summary,.callout,.doc p,.doc li{text-wrap:pretty}
/* 改行させたくない語句の保護 */
.nowrap{white-space:nowrap}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.btn{display:inline-block;padding:13px 26px;border-radius:999px;font-weight:700;background:var(--grad);color:#fff;border:0;cursor:pointer}
.btn:hover{opacity:.92;text-decoration:none}
.btn.ghost{background:#fff;color:var(--blue);border:1.5px solid var(--line)}

/* nav */
header.nav{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.86);backdrop-filter:saturate(150%) blur(10px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:18px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px}
.brand img{width:34px;height:34px;border-radius:8px}
.nav nav{margin-left:auto;display:flex;gap:22px;align-items:center;font-size:15px}
.nav nav a{color:var(--ink)}
@media(max-width:720px){.nav nav a.hide-sp{display:none}}

/* hero */
.hero{background:var(--grad);color:#fff;padding:84px 0 96px;text-align:center}
.hero .icon{width:128px;height:128px;border-radius:28px;box-shadow:0 18px 50px rgba(8,24,60,.35);margin-bottom:26px}
.hero h1{font-size:clamp(30px,5vw,52px);line-height:1.25;margin:0 0 14px;font-weight:800}
.hero p.lead{font-size:clamp(15px,2.2vw,20px);opacity:.95;margin:0 auto 30px;max-width:900px}
.hero .cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero .cta .btn{background:#fff;color:var(--blue)}
.hero .cta .btn.ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.hero .note{margin-top:18px;font-size:13px;opacity:.85}

/* sections */
section{padding:72px 0}
section h2{font-size:clamp(24px,3.4vw,34px);text-align:center;margin:0 0 10px;font-weight:800}
section .sub{text-align:center;color:var(--sub);margin:0 auto 44px;max-width:640px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media(max-width:820px){.grid{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.card .ic{width:48px;height:48px;border-radius:14px;background:var(--grad);display:flex;align-items:center;justify-content:center;color:#fff;margin-bottom:16px;box-shadow:0 8px 18px rgba(43,86,232,.20)}
.card .ic svg{width:26px;height:26px;display:block}
.card h3{margin:0 0 8px;font-size:18px}
.card p{margin:0;color:var(--sub);font-size:15px}

/* shots */
.shots{background:#eef2fa}
.shotgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
@media(max-width:820px){.shotgrid{grid-template-columns:1fr;max-width:520px;margin:0 auto}}
.shotgrid img{width:100%;height:420px;object-fit:contain;border-radius:14px;border:1px solid var(--line);box-shadow:0 10px 30px rgba(20,40,90,.10);background:#fff;padding:12px;cursor:zoom-in;transition:transform .2s ease, box-shadow .2s ease}
.shotgrid img:hover{transform:translateY(-4px);box-shadow:0 18px 44px rgba(20,40,90,.18)}
@media(max-width:820px){.shotgrid img{height:auto}}

/* lightbox */
.lightbox{position:fixed;inset:0;z-index:100;display:none;align-items:center;justify-content:center;padding:32px;background:rgba(8,16,35,.82);backdrop-filter:blur(4px);cursor:zoom-out}
.lightbox.open{display:flex}
.lightbox img{max-width:92vw;max-height:90vh;border-radius:12px;box-shadow:0 30px 80px rgba(0,0,0,.5);background:#fff}
.lightbox .close{position:absolute;top:18px;right:24px;width:44px;height:44px;font-size:30px;line-height:1;color:#fff;background:rgba(255,255,255,.12);border:0;border-radius:999px;cursor:pointer}
.lightbox .close:hover{background:rgba(255,255,255,.24)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:s}
@media(max-width:820px){.steps{grid-template-columns:1fr}}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.step::before{counter-increment:s;content:counter(s);display:inline-flex;width:38px;height:38px;border-radius:999px;background:var(--grad);color:#fff;font-weight:800;align-items:center;justify-content:center;margin-bottom:12px}

/* pricing */
.price{max-width:440px;margin:0 auto;text-align:center;background:var(--card);border:1px solid var(--line);border-radius:24px;padding:36px}
.price .amt{font-size:46px;font-weight:800}
.price .amt small{font-size:17px;color:var(--sub);font-weight:600}
.price ul{list-style:none;padding:0;margin:18px 0;text-align:left}
.price li{padding:7px 0 7px 28px;position:relative;color:var(--ink)}
.price li::before{content:"✓";position:absolute;left:0;color:var(--teal);font-weight:800}

/* faq */
.faq details{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:6px 20px;margin-bottom:12px}
.faq summary{cursor:pointer;font-weight:700;padding:14px 0;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"＋";float:right;color:var(--blue)}
.faq details[open] summary::after{content:"−"}
.faq p{margin:0 0 14px;color:var(--sub)}

/* callout */
.callout{background:#fff8e8;border:1px solid #f0ce78;border-radius:14px;padding:16px 20px;color:#7a5b15;font-size:14px}

/* footer */
footer{background:var(--ink);color:#c8d2e6;padding:42px 0;font-size:14px}
footer .wrap{display:flex;flex-wrap:wrap;gap:18px;justify-content:space-between;align-items:center}
footer a{color:#fff}
footer .links{display:flex;gap:20px;flex-wrap:wrap}

/* legal pages */
.doc{max-width:780px;margin:0 auto;padding:54px 22px}
.doc h1{font-size:30px}
.doc h2{margin-top:34px;font-size:20px}
.doc .muted{color:var(--sub);font-size:14px}
.doc .back{display:inline-block;margin-bottom:18px}