:root{
  --navy:#1F4E79; --navy-dark:#173C5D; --ink:#1c2430; --muted:#5b6674; --line:#e3e8ee;
  --bg:#f6f8fb; --card:#ffffff; --accent:#E5484D; --ok:#2E9E5B; --warn:#D9A400;
  --radius:14px; --shadow:0 2px 10px rgba(20,40,70,.06); --shadow-h:0 10px 28px rgba(20,40,70,.14);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:"Segoe UI","Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic UI",Meiryo,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--navy);text-decoration:none}
button{font-family:inherit}
.container{max-width:1120px;margin:0 auto;padding:0 20px}

/* header */
.header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.header .container{display:flex;align-items:center;height:60px;gap:18px}
.logo{display:flex;align-items:center;gap:8px;font-weight:800;font-size:20px;color:var(--navy);letter-spacing:.2px}
.logo .mark{width:30px;height:30px;border-radius:8px;background:var(--navy);display:grid;place-items:center;color:#fff;font-size:13px;font-weight:900}
.nav{display:flex;gap:16px;margin-left:8px;font-size:14px}
.nav a{color:var(--muted);padding:6px 4px}
.nav a:hover{color:var(--navy)}
.spacer{flex:1}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:10px;padding:10px 18px;font-size:14px;font-weight:700;cursor:pointer;transition:.15s;white-space:nowrap}
.btn-primary{background:var(--navy);color:#fff}
.btn-primary:hover{background:var(--navy-dark)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{filter:brightness(.93)}
.btn-ghost{background:transparent;color:var(--navy);border:1.5px solid var(--line)}
.btn-ghost:hover{border-color:var(--navy)}
.btn-lg{padding:14px 28px;font-size:16px;border-radius:12px}
.btn:disabled{opacity:.5;cursor:not-allowed}
.badge{display:inline-flex;align-items:center;gap:6px;background:#eef3f9;color:var(--navy);border-radius:999px;padding:4px 12px;font-size:12px;font-weight:700}
.badge.pro{background:#fff3cd;color:#8a6100}

/* hero */
.hero{text-align:center;padding:56px 0 28px}
.hero h1{font-size:38px;margin:0 0 10px;letter-spacing:-.5px;color:var(--navy)}
.hero p{font-size:16px;color:var(--muted);max-width:720px;margin:0 auto}
.tabs{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin:26px 0 30px}
.tab{border:1.5px solid var(--line);background:#fff;border-radius:999px;padding:7px 16px;font-size:14px;cursor:pointer;color:var(--muted);font-weight:600}
.tab.active{background:var(--ink);color:#fff;border-color:var(--ink)}

/* grid */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:18px;padding-bottom:60px}
.card{background:var(--card);border-radius:var(--radius);padding:22px 20px 20px;box-shadow:var(--shadow);border:1px solid transparent;display:flex;flex-direction:column;gap:10px;min-height:190px;transition:.18s;position:relative;color:var(--ink)}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-h);border-color:#d7e0ea}
.card .icon{width:44px;height:44px;border-radius:10px;display:grid;place-items:center}
.card .icon svg{width:24px;height:24px}
.card h3{margin:2px 0 0;font-size:17px}
.card p{margin:0;font-size:13px;color:var(--muted);line-height:1.55}
.card .new{position:absolute;top:14px;right:14px;font-size:11px;background:#e8f2ff;color:#1a5fb4;border-radius:6px;padding:2px 8px;font-weight:700}

/* sections */
.section{padding:60px 0}
.section h2{text-align:center;font-size:28px;color:var(--navy);margin:0 0 8px}
.section .lead{text-align:center;color:var(--muted);margin:0 0 34px}
.pricing{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;max-width:900px;margin:0 auto}
.price{background:#fff;border-radius:16px;padding:28px 26px;box-shadow:var(--shadow);border:2px solid transparent;display:flex;flex-direction:column}
.price.hot{border-color:var(--navy)}
.price .tag{font-size:12px;font-weight:800;color:var(--navy);background:#eef3f9;border-radius:999px;padding:3px 10px;align-self:flex-start}
.price h3{margin:10px 0 2px;font-size:20px}
.price .amt{font-size:34px;font-weight:900;color:var(--ink)}
.price .amt small{font-size:14px;font-weight:600;color:var(--muted)}
.price ul{list-style:none;padding:0;margin:14px 0 20px;font-size:14px;color:var(--ink)}
.price li{padding:6px 0;border-bottom:1px dashed var(--line);display:flex;gap:8px}
.price li:before{content:"✓";color:var(--ok);font-weight:900}
.price .btn{margin-top:auto}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;max-width:900px;margin:0 auto}
.step{background:#fff;border-radius:14px;padding:22px;box-shadow:var(--shadow);text-align:center}
.step .num{width:38px;height:38px;border-radius:50%;background:var(--navy);color:#fff;font-weight:900;display:grid;place-items:center;margin:0 auto 10px}
.faq{max-width:800px;margin:0 auto}
.faq details{background:#fff;border-radius:12px;padding:14px 20px;margin-bottom:10px;box-shadow:var(--shadow)}
.faq summary{cursor:pointer;font-weight:700}
.faq p{margin:10px 0 0;color:var(--muted);font-size:14px}
.trial{background:#fff;border-radius:16px;padding:30px;max-width:640px;margin:0 auto;box-shadow:var(--shadow);text-align:center}
.trial form{display:flex;gap:10px;margin-top:16px}
.trial input{flex:1;padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;font-size:15px}
.msg{margin-top:12px;font-size:14px;min-height:20px}
.msg.ok{color:var(--ok)} .msg.ng{color:var(--accent)}
.footer{border-top:1px solid var(--line);background:#fff;padding:30px 0;font-size:13px;color:var(--muted)}
.footer .container{display:flex;flex-wrap:wrap;gap:16px;align-items:center}

/* tool page */
.tool-head{display:flex;align-items:center;gap:16px;padding:34px 0 14px}
.tool-head .icon{width:56px;height:56px;border-radius:14px;display:grid;place-items:center}
.tool-head .icon svg{width:30px;height:30px}
.tool-head h1{margin:0;font-size:28px;color:var(--navy)}
.tool-head p{margin:2px 0 0;color:var(--muted)}
.workspace{display:grid;grid-template-columns:1fr 340px;gap:22px;padding-bottom:60px;align-items:start}
@media(max-width:860px){.workspace{grid-template-columns:1fr}}
.drop{background:#fff;border:2px dashed #c7d3e0;border-radius:16px;padding:40px 20px;text-align:center;cursor:pointer;transition:.15s}
.drop:hover,.drop.over{border-color:var(--navy);background:#f3f7fc}
.drop .big{font-size:18px;font-weight:800;color:var(--navy)}
.drop .sub{color:var(--muted);font-size:13px;margin-top:6px}
.files{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.file{background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 12px;display:flex;align-items:center;gap:10px;font-size:14px}
.file .name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.file .size{color:var(--muted);font-size:12px}
.file .ctl{display:flex;gap:4px}
.file .ctl button{border:1px solid var(--line);background:#fff;border-radius:6px;width:28px;height:28px;cursor:pointer;color:var(--muted)}
.file .ctl button:hover{border-color:var(--navy);color:var(--navy)}
.panel{background:#fff;border-radius:16px;padding:22px;box-shadow:var(--shadow);position:sticky;top:76px}
.panel h3{margin:0 0 12px;font-size:16px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;font-weight:700;margin-bottom:5px;color:var(--ink)}
.field input,.field select{width:100%;padding:10px 12px;border:1.5px solid var(--line);border-radius:9px;font-size:14px;background:#fff}
.field input[type=color]{height:42px;padding:4px}
.panel .btn{width:100%}
.progress{height:8px;background:#e9eef4;border-radius:999px;overflow:hidden;margin:12px 0 6px;display:none}
.progress i{display:block;height:100%;width:0;background:var(--navy);transition:width .3s}
.status{font-size:13px;color:var(--muted);min-height:20px}
.result{background:#eefaf2;border:1px solid #c6ecd3;border-radius:14px;padding:22px;text-align:center;margin-top:16px;display:none}
.result h3{margin:0 0 6px;color:var(--ok)}
.result .meta{font-size:13px;color:var(--muted);margin-bottom:14px}
.limit{font-size:12px;color:var(--muted);margin-top:12px;line-height:1.5}
.upgrade{background:#fff8e1;border:1px solid #ffe08a;border-radius:12px;padding:14px;font-size:13px;margin-top:14px;display:none}

/* modal */
.modal-bg{position:fixed;inset:0;background:rgba(10,20,40,.45);display:none;place-items:center;z-index:50}
.modal-bg.show{display:grid}
.modal{background:#fff;border-radius:16px;padding:28px;width:min(420px,92vw);box-shadow:var(--shadow-h)}
.modal h3{margin:0 0 6px;color:var(--navy)}
.modal .sub{font-size:13px;color:var(--muted);margin-bottom:16px}
.modal .row{display:flex;gap:10px;margin-top:14px}
.modal .row .btn{flex:1}
.note{font-size:12px;color:var(--muted);margin-top:12px}
.usermenu{display:flex;align-items:center;gap:10px;font-size:13px}
.usermenu .name{font-weight:700;color:var(--navy)}
.linklike{background:none;border:0;color:var(--muted);cursor:pointer;font-size:13px;text-decoration:underline}
@media(max-width:640px){
  .hero{padding:34px 0 20px}.hero h1{font-size:26px}.nav{display:none}.trial form{flex-direction:column}
  .header .container{height:auto;min-height:56px;padding:8px 14px;gap:8px;flex-wrap:nowrap}
  .logo{font-size:16px;white-space:nowrap}.logo .mark{width:26px;height:26px}
  .header .btn{padding:7px 10px;font-size:12px}
  .usermenu{flex-wrap:wrap;justify-content:flex-end;gap:6px}
  .hero p{font-size:14px}
}