/* せどり 利益チェック 紹介ページ(PC優先・スマホ対応)。アプリと同じ色(紺・青1色・緑=黒字)。 */
:root{
  --navy:#1e3348;--navy-2:#2a445f;--ink:#16202b;--sub:#46505c;--mute:#6b7480;--line:#dde2e8;--line2:#c3cad3;
  --bg:#fff;--alt:#f4f6f8;--ac:#1559b3;--ac-d:#0f4690;--ac-soft:#eef4fc;--good:#0a7a3a;--sel:#fff8de;
  --font:"Helvetica Neue",Arial,"Hiragino Kaku Gothic ProN","Hiragino Sans","BIZ UDPGothic",Meiryo,"Noto Sans JP","Noto Sans CJK JP",sans-serif;
  --w:1200px;color-scheme:light;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:72px}
body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.8 var(--font);font-variant-numeric:tabular-nums}
a{color:var(--ac)}
img{max-width:100%;height:auto;display:block}
.in{max-width:var(--w);margin:0 auto;padding:0 32px}
.pc{display:inline}
.nw{display:inline-block}
:focus-visible{outline:2px solid #2f7de1;outline-offset:2px}

/* ---------- 上の帯 ---------- */
.top{position:sticky;top:0;z-index:50;background:var(--navy);color:#fff}
.top-in{max-width:var(--w);margin:0 auto;padding:0 32px;height:60px;display:flex;align-items:center;gap:32px}
.brand{display:flex;flex-direction:column;line-height:1.15;color:#fff;text-decoration:none}
.brand b{font-size:16px;letter-spacing:.08em}
.brand span{font-size:11px;color:#b9c6d4;margin-top:2px}
.top-nav{display:flex;gap:24px;margin-left:auto;font-size:13.5px}
.top-nav a{color:#dbe3ec;text-decoration:none;padding:12px 0}
.top-nav a:hover{color:#fff;text-decoration:underline}

/* ---------- ボタン(1種類だけ) ---------- */
.cta{display:inline-flex;align-items:center;justify-content:center;height:52px;padding:0 32px;background:var(--ac);color:#fff;font-weight:700;font-size:16px;border-radius:4px;text-decoration:none;white-space:nowrap;letter-spacing:.02em}
.cta:hover{background:var(--ac-d);color:#fff}
.cta.sm{height:36px;padding:0 16px;font-size:13.5px;background:#fff;color:var(--navy)}
.cta.sm:hover{background:#e6edf5;color:var(--navy)}
.cta.full{width:100%}
.more{font-size:14px;font-weight:700;text-decoration:none;white-space:nowrap}
.more::after{content:"";display:inline-block;width:7px;height:7px;margin-left:8px;border-top:2px solid currentColor;border-right:2px solid currentColor;transform:rotate(45deg) translateY(-1px)}
.more:hover{text-decoration:underline}

/* ---------- 最初の画面 ---------- */
.hero{padding:56px 0 0;border-bottom:1px solid var(--line)}
.hero-in{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:48px;align-items:center}
.kicker{margin:0 0 12px;font-size:13px;font-weight:700;color:var(--ac);letter-spacing:.06em}
h1{margin:0;font-size:34px;line-height:1.42;letter-spacing:.01em;font-weight:800}
.lead{margin:20px 0 0;font-size:16.5px;color:var(--sub);line-height:1.9}
.hero-cta{margin-top:28px}
.cta-note{margin:12px 0 0;font-size:12.5px;color:var(--mute);line-height:1.7;max-width:430px}

.demo{margin:0}
.demo-frame{border:1px solid var(--line2);border-radius:6px;overflow:hidden;background:#fff;box-shadow:0 1px 2px rgba(16,32,48,.06),0 12px 32px -8px rgba(16,32,48,.18)}
.demo-bar{display:flex;align-items:center;justify-content:space-between;height:30px;padding:0 8px 0 12px;background:#eef1f4;border-bottom:1px solid var(--line)}
.demo-url{font-size:11px;color:var(--mute);background:#fff;border:1px solid var(--line);border-radius:3px;padding:0 8px;line-height:18px}
.demo-pp{border:0;background:none;font-size:11px;color:var(--sub);cursor:pointer;padding:2px 4px;text-decoration:underline}
.demo-stage{position:relative;aspect-ratio:16/10;background:#f5f6f8;overflow:hidden}
.demo-zoom{position:absolute;inset:0;transition:transform 1.2s cubic-bezier(.4,0,.2,1);will-change:transform}
.demo-stage img{position:absolute;inset:0;width:100%;height:100%;opacity:0;transition:opacity .35s ease}
.demo-stage img.on{opacity:1}
.cur{position:absolute;left:50%;top:50%;width:20px;height:24px;margin:-2px 0 0 -2px;transform-origin:2px 2px;pointer-events:none;transition:left 1.1s cubic-bezier(.45,.05,.25,1),top 1.1s cubic-bezier(.45,.05,.25,1);z-index:2;filter:drop-shadow(0 1px 1px rgba(0,0,0,.25))}
.cur::before{content:"";position:absolute;left:-14px;top:-14px;width:32px;height:32px;border-radius:50%;border:2px solid var(--ac);opacity:0;transform:scale(.4)}
.cur.click::before{animation:ring .5s ease-out}
@keyframes ring{0%{opacity:.9;transform:scale(.4)}100%{opacity:0;transform:scale(1.2)}}
.demo-cap{margin-top:12px}
.demo-steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:4px}
.demo-steps button{width:100%;min-height:44px;border:0;background:none;padding:8px 0 0;text-align:left;font:inherit;font-size:12.5px;color:var(--mute);cursor:pointer;position:relative;border-top:3px solid var(--line)}
.demo-steps button b{font-size:11px;margin-right:6px;color:var(--mute)}
.demo-steps li.on button,.demo-steps li.done button{color:var(--ink)}
.demo-steps li.done button{border-top-color:var(--navy)}
.demo-steps li.on button::before{content:"";position:absolute;left:0;top:-3px;height:3px;background:var(--navy);width:0;animation:fill var(--dur,4s) linear forwards}
.demo-steps li.on.paused button::before{animation-play-state:paused}
@keyframes fill{to{width:100%}}
.demo-txt{margin:8px 0 0;font-size:13.5px;color:var(--sub);min-height:3.4em}

.in.facts{display:grid;grid-template-columns:repeat(4,1fr);margin-top:40px;border-top:1px solid var(--line);padding:0;max-width:calc(var(--w) - 64px)}
.facts div{padding:20px 24px 24px;border-left:1px solid var(--line);display:flex;flex-direction:column;gap:4px}
.facts div:first-child{border-left:0;padding-left:0}
.facts b{font-size:26px;line-height:1.2;font-weight:800;color:var(--navy)}
.facts b small{font-size:14px;font-weight:700;margin-left:2px}
.facts span{font-size:12.5px;color:var(--sub);line-height:1.6}

/* ---------- 段 ---------- */
.sec{padding:80px 0}
.sec.alt{background:var(--alt)}
.h2{margin:0 0 32px;font-size:28px;line-height:1.45;font-weight:800}
.sub{margin:-20px 0 28px;color:var(--sub)}
h3{line-height:1.5}

.diff{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
.diff article{border-top:2px solid var(--ink);padding-top:16px}
.diff .no{margin:0;font-size:13px;font-weight:700;color:var(--ac);letter-spacing:.06em}
.diff h3{margin:8px 0 12px;font-size:18px}
.diff p{margin:0;color:var(--sub);font-size:14.5px}

.how{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:0;counter-reset:s;background:#fff;border:1px solid var(--line)}
.how li{padding:24px;border-left:1px solid var(--line);position:relative}
.how li:first-child{border-left:0}
.how li:not(:last-child)::after{content:"";position:absolute;right:-7px;top:34px;width:12px;height:12px;background:#fff;border-top:1px solid var(--line);border-right:1px solid var(--line);transform:rotate(45deg);z-index:1}
.how .n{display:inline-flex;width:28px;height:28px;align-items:center;justify-content:center;background:var(--navy);color:#fff;font-weight:700;font-size:13px;border-radius:2px}
.how h3{margin:12px 0 6px;font-size:16.5px}
.how p{margin:0;font-size:13.5px;color:var(--sub)}

/* ルート別 */
.routes{display:grid;grid-template-columns:220px minmax(0,1fr);gap:32px;align-items:start}
.rt-tabs{display:flex;flex-direction:column;border-left:1px solid var(--line);position:sticky;top:84px}
.rt-tabs a{padding:12px 16px;min-height:44px;text-decoration:none;color:var(--sub);font-size:14px;font-weight:700;border-left:3px solid transparent;margin-left:-2px}
.rt-tabs a:hover{color:var(--ink);background:var(--alt)}
.rt-tabs a[aria-selected="true"]{color:var(--ink);border-left-color:var(--ac);background:var(--ac-soft)}
.rt{display:grid;grid-template-columns:minmax(0,3.6fr) minmax(0,6.4fr);gap:32px;align-items:start;padding-bottom:48px;scroll-margin-top:84px}
.js .rt{display:none;padding-bottom:0}
.js .rt.on{display:grid}
.rt h3{margin:0 0 12px;font-size:20px}
.rt ul{margin:0 0 20px;padding-left:1.1em;color:var(--sub);font-size:14.5px}
.rt li{margin-bottom:6px}
.rt img{border:1px solid var(--line2);border-radius:4px;box-shadow:0 8px 24px -10px rgba(16,32,48,.2)}
.mid-cta{margin:48px 0 0;text-align:center}
.mid-cta.left{text-align:left;display:flex;align-items:center;gap:24px;flex-wrap:wrap;margin-top:32px}

.two{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:56px;align-items:start}
.keep{margin:0;display:grid;gap:0;border-top:1px solid var(--line2)}
.keep div{display:grid;grid-template-columns:150px 1fr;gap:16px;padding:16px 0;border-bottom:1px solid var(--line2)}
.keep dt{font-weight:800;font-size:15.5px}
.keep dd{margin:0;color:var(--sub);font-size:14px}
.next{margin:20px 0 0;font-size:13.5px;color:var(--sub)}
.honnin{margin-top:32px;background:#fff;border:1px solid var(--line);border-left:3px solid #d9b23c;padding:20px 24px;scroll-margin-top:84px}
.honnin h3{margin:0 0 8px;font-size:16px}
.honnin p{margin:0;font-size:13.5px;color:var(--sub)}
.honnin .src{margin-top:8px;font-size:12px;color:var(--mute)}
.shot{margin:0;position:sticky;top:84px}
.shot img{border:1px solid var(--line2);border-radius:4px;box-shadow:0 12px 32px -10px rgba(16,32,48,.22)}
.shot figcaption{font-size:12.5px;color:var(--mute);margin-top:8px}

.scan-two{grid-template-columns:minmax(0,4fr) minmax(0,6fr);align-items:center}
.phone{margin:0 auto;width:300px;padding:12px;border-radius:36px;background:#11161c;box-shadow:0 20px 40px -16px rgba(16,32,48,.45)}
.phone-screen{border-radius:26px;overflow:hidden;aspect-ratio:9/19;background:#fff;position:relative}
.phone-screen img{position:absolute;left:0;top:0;width:100%;animation:pan 14s ease-in-out infinite alternate}
@keyframes pan{0%,15%{transform:translateY(0)}85%,100%{transform:translateY(var(--pan,0px))}}
.ticks{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.ticks li{padding:12px 0;border-bottom:1px solid var(--line);color:var(--sub);font-size:14.5px;display:grid;grid-template-columns:140px 1fr;gap:16px}
.ticks b{color:var(--ink)}

.trust{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.trust article{background:#fff;border:1px solid var(--line);padding:24px;display:flex;flex-direction:column}
.trust h3{margin:0 0 8px;font-size:16px}
.trust p{margin:0 0 12px;font-size:13.5px;color:var(--sub);flex:1}
.trust a{font-size:13px;font-weight:700}

.plans{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;border:1px solid var(--line2);align-items:stretch}
.plan{padding:28px;display:flex;flex-direction:column;border-left:1px solid var(--line2);position:relative}
.plan:first-child{border-left:0}
.plan.main{background:#fbfcfe;box-shadow:inset 0 3px 0 var(--ac)}
.plan .tag{position:absolute;top:16px;right:20px;margin:0;font-size:12px;font-weight:700;color:var(--ac);border:1px solid var(--ac);padding:0 8px;line-height:22px;border-radius:2px}
.plan .tag.gray{color:var(--mute);border-color:var(--line2)}
.plan.later .yen b{color:var(--sub)}
.plan li .soon{display:inline-block;margin-left:6px;padding:0 5px;font-size:11px;line-height:18px;color:var(--sub);border:1px dashed var(--line2);border-radius:2px;white-space:nowrap;vertical-align:1px}
.plan .plain:not(.off){margin-top:auto}
.plan .cond b{color:var(--ink)}
.plans-note{margin:16px 0 0;font-size:12.5px;color:var(--mute)}
.plan h3{margin:0;font-size:17px}
.plan .yen{margin:8px 0 0;font-size:15px}
.plan .yen b{font-size:36px;font-weight:800;margin:0 2px;letter-spacing:.01em}
.plan .yen small{font-size:12px;color:var(--mute);margin-left:4px}
.plan .cond{margin:4px 0 16px;font-size:12.5px;color:var(--sub);min-height:3.4em;line-height:1.7}
.plan ul{margin:0 0 24px;padding:16px 0 0;list-style:none;border-top:1px solid var(--line);font-size:13.5px;flex:1}
.plan li{padding:4px 0 4px 18px;position:relative;color:var(--sub)}
.plan li::before{content:"";position:absolute;left:2px;top:12px;width:8px;height:4px;border-left:2px solid var(--good);border-bottom:2px solid var(--good);transform:rotate(-45deg)}
.plain{display:flex;align-items:center;justify-content:center;height:48px;border:1px solid var(--line2);border-radius:4px;color:var(--ink);text-decoration:none;font-weight:700;font-size:14px}
.plain:hover{background:var(--alt)}
.plain.off{color:var(--mute);font-weight:400;font-size:13px;border-style:dashed}
.fine{margin:12px 0 0;font-size:11.5px;color:var(--mute);line-height:1.7}

.narrow{max-width:860px}
#faq details{border-bottom:1px solid var(--line2);background:none}
#faq details:first-of-type{border-top:1px solid var(--line2)}
#faq summary{cursor:pointer;padding:18px 36px 18px 0;min-height:44px;font-weight:700;list-style:none;position:relative;font-size:15.5px}
#faq summary::-webkit-details-marker{display:none}
#faq summary::after{content:"";position:absolute;right:6px;top:26px;width:8px;height:8px;border-right:2px solid var(--sub);border-bottom:2px solid var(--sub);transform:rotate(45deg)}
#faq details[open] summary::after{transform:rotate(-135deg);top:30px}
#faq details p{margin:0 0 20px;color:var(--sub);font-size:14.5px}

.end{background:var(--navy);color:#fff;padding:56px 0}
.end-in{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.end p{margin:0;font-size:22px;font-weight:800}
.end .cta{background:#fff;color:var(--navy)}
.end .cta:hover{background:#e6edf5}

.foot{padding:32px 0 48px;font-size:12px;color:var(--mute);background:var(--alt);border-top:1px solid var(--line)}
.foot nav{display:flex;gap:4px 20px;flex-wrap:wrap;margin-bottom:12px}
.foot nav a{padding:10px 0;display:inline-block}
.foot nav a{color:var(--sub)}
.foot p{margin:0;max-width:880px;line-height:1.7}

.sticky{display:none}

/* ---------- 中くらいの画面 ---------- */
@media(max-width:1180px){
  .top-nav{gap:16px;font-size:12.5px}
  h1{font-size:30px}
  .trust{grid-template-columns:repeat(2,1fr)}
  .plans{grid-template-columns:1fr;border:0;gap:16px}
  .plan{border:1px solid var(--line2)}
  .plan.main{order:-1}
}
@media(max-width:1000px){
  .top-nav{display:none}
  .top-in{justify-content:space-between}
  .hero-in{grid-template-columns:1fr;gap:32px}
  .two,.scan-two{grid-template-columns:1fr;gap:32px}
  .shot{position:static}
  .routes{grid-template-columns:1fr;gap:16px}
  .rt-tabs{position:static;flex-direction:row;overflow-x:auto;border-left:0;border-bottom:1px solid var(--line);scrollbar-width:none}
  .rt-tabs::-webkit-scrollbar{display:none}
  .rt-tabs a{border-left:0;border-bottom:3px solid transparent;margin:0 0 -1px;white-space:nowrap;padding:10px 14px}
  .rt-tabs a[aria-selected="true"]{border-bottom-color:var(--ac);background:none}
  .rt{grid-template-columns:1fr;gap:20px}
  .rt img{order:-1}
}
/* ---------- スマホ ---------- */
@media(max-width:640px){
  body{font-size:15px}
  .in,.top-in{padding:0 16px}
  .pc{display:none}
  .top-in{height:52px}
  .hero{padding-top:28px}
  h1{font-size:27px;line-height:1.45}
  .lead{font-size:15px;margin-top:14px}
  .hero-cta{margin-top:20px}
  .hero-cta .cta{width:100%}
  .demo-steps button{font-size:10.5px;padding-top:6px}
  .demo-steps button b{display:block;margin:0}
  .demo-bar{display:none}
  .in.facts{grid-template-columns:1fr 1fr;margin:28px 16px 0}
  .facts div{padding:14px 12px 16px;border-left:0;border-top:1px solid var(--line)}
  .facts div:nth-child(even){border-left:1px solid var(--line)}
  .facts div:nth-child(-n+2){border-top:0}
  .facts div:first-child{padding-left:12px}
  .facts b{font-size:21px}
  .facts span{font-size:11.5px}
  .facts span br{display:none}
  .sec{padding:56px 0}
  .h2{font-size:22px;margin-bottom:24px}
  .sub{margin:-14px 0 20px;font-size:14px}
  .diff{grid-template-columns:1fr;gap:28px}
  .how{grid-template-columns:1fr}
  .how li{border-left:0;border-top:1px solid var(--line);display:grid;grid-template-columns:28px 1fr;column-gap:14px;padding:18px}
  .how li:first-child{border-top:0}
  .how li::after{display:none}
  .how .n{grid-row:span 2}
  .how h3{margin:0 0 4px;font-size:15.5px;line-height:28px}
  .keep div{grid-template-columns:1fr;gap:4px}
  .ticks li{grid-template-columns:1fr;gap:2px}
  .trust{grid-template-columns:1fr}
  .plans{grid-template-columns:1fr;border:0;gap:16px}
  .plan,.plan:first-child{border:1px solid var(--line2)}
  .plan .cond{min-height:0}
  .plan.main{order:-2}
  .phone{width:250px}
  .end p{font-size:18px}
  .end .cta{width:100%}
  .mid-cta .cta,.mid-cta.left .cta{width:100%}
  .sticky{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:60;align-items:center;gap:12px;padding:8px 16px calc(8px + env(safe-area-inset-bottom));background:rgba(255,255,255,.96);-webkit-backdrop-filter:saturate(1.4) blur(8px);backdrop-filter:saturate(1.4) blur(8px);border-top:1px solid var(--line2);transform:translateY(110%);transition:transform .2s;visibility:hidden}
  .sticky.on{transform:none;visibility:visible}
  .sticky .cta{height:48px;flex:1;font-size:15px;padding:0 12px}
  .sticky span{font-size:11px;color:var(--sub);line-height:1.45;white-space:nowrap}
  /* 下のボタンが本文の最後の行を隠さないよう、ボタンの高さ分だけ余白をとる */
  body{padding-bottom:calc(64px + env(safe-area-inset-bottom))}
  html{scroll-padding-bottom:80px}
  .foot{padding-bottom:32px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .demo-zoom{transition:none}
  .cur{display:none}
  .demo-stage img{transition:none}
  .phone-screen img{animation:none}
  .demo-steps li.on button::before{animation:none;width:100%}
}
.plan.biz .tag{color:var(--navy);border-color:var(--navy)}
.plans-lead{margin:-8px 0 20px;font-size:15px;color:var(--sub)}
.plans-lead b{color:var(--ink)}
.plan .who{margin:4px 0 0;font-size:13px;color:var(--sub)}
.plan li.later-h{padding-left:0;margin-top:8px;border-top:1px dashed var(--line);padding-top:12px}
.plan li.later-h::before{display:none}
.plan li.later-h .soon{display:inline-block;padding:0 5px;font-size:11px;line-height:18px;color:var(--sub);border:1px dashed var(--line2);border-radius:2px}
.plan li.later::before{border-color:var(--line2)}