:root {
  --bg: #04050d;
  --bg-2: #090c1a;
  --bg-3: #0e1226;
  --panel: #0b0f20;
  --panel-2: #11162e;
  --text: #eef1fb;
  --muted: #8d95b2;
  --dim: #5c6480;
  --cyan: #00f0ff;
  --cyan-dim: #0aa9c4;
  --magenta: #ff2d95;
  --violet: #7b5cff;
  --line: rgba(0, 240, 255, .16);
  --line-soft: rgba(140, 160, 255, .12);
  --glow-cyan: 0 0 24px rgba(0, 240, 255, .35);
  --glow-magenta: 0 0 28px rgba(255, 45, 149, .35);
  --radius: 4px;
  --container: 1160px;
  --font-display: "Playfair Display", "Noto Sans JP", serif;
  --font-body: "Inter", "Noto Sans JP", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-num: "Oswald", "Noto Sans JP", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(1000px 700px at 85% -5%, rgba(123, 92, 255, .12), transparent 60%),
    radial-gradient(900px 700px at -10% 30%, rgba(0, 240, 255, .06), transparent 55%),
    var(--bg);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 240, 255, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 240, 255, .035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 0%, transparent 75%);
}
body.nav-open { overflow: hidden; }
main { position: relative; z-index: 1; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; }
button, input, textarea, select { font: inherit; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.narrow { max-width: 920px; }
.skip-link { position: fixed; top: -100px; left: 12px; z-index: 9999; padding: 10px 16px; background: #000; color: var(--cyan); }
.skip-link:focus { top: 12px; }

h1, h2,
.feature-content h3,
.measurement-copy h3,
.reward-content h3,
.llmo-title h3,
.ai-value-copy h3 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: .02em;
}

/* ===== HUD utilities ===== */
.section-kicker, .eyebrow {
  margin: 0 0 20px;
  color: var(--cyan);
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .38em;
  text-transform: uppercase;
}
.section-kicker::before, .eyebrow::before { content: "// "; color: var(--magenta); letter-spacing: .1em; }
.section-kicker.light { color: var(--cyan); }

/* ===== header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  color: var(--text);
  background: rgba(4, 5, 13, .82);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}
.header-inner { height: 76px; display: flex; align-items: center; gap: 32px; }
.brand { display: inline-flex; align-items: center; gap: 11px; line-height: 1; }
.brand-mark { display: grid; place-items: center; width: 37px; height: 37px; color: #04050d; background: linear-gradient(135deg, var(--cyan), var(--violet) 60%, var(--magenta)); border-radius: var(--radius); font-family: var(--font-display); font-size: 20px; font-weight: 800; box-shadow: var(--glow-cyan); }
.brand b { display: block; font-size: 15px; font-weight: 700; letter-spacing: .05em; }
.brand em { display: block; margin-top: 4px; color: var(--cyan); font-family: var(--font-num); font-size: 10px; font-style: normal; font-weight: 500; letter-spacing: .34em; text-transform: uppercase; }
.header-nav { display: flex; gap: 30px; margin-left: auto; }
.header-nav a { color: var(--muted); font-size: 12px; font-weight: 500; letter-spacing: .08em; transition: color .2s, text-shadow .2s; }
.header-nav a:hover { color: var(--cyan); text-shadow: 0 0 12px rgba(0, 240, 255, .6); }

.button { position: relative; display: inline-flex; align-items: center; justify-content: center; min-height: 58px; padding: 15px 34px; border-radius: var(--radius); color: #fff; background: linear-gradient(100deg, var(--magenta), var(--violet)); box-shadow: 0 0 0 1px rgba(255, 45, 149, .5), var(--glow-magenta); font-weight: 700; letter-spacing: .04em; line-height: 1.35; transition: transform .2s ease, box-shadow .25s ease, filter .2s ease; }
.button:hover { transform: translateY(-2px); box-shadow: 0 0 0 1px rgba(255, 45, 149, .9), 0 0 42px rgba(255, 45, 149, .55); filter: brightness(1.08); }
.button-small { min-height: 42px; padding: 9px 20px; font-size: 12px; }
.button-primary::after { content: ""; position: absolute; inset: 0; transform: translateX(-110%); background: linear-gradient(90deg, transparent, rgba(255,255,255,.35), transparent); transition: transform .7s ease; }
.button-primary:hover::after { transform: translateX(110%); }

/* ===== hero ===== */
.hero { position: relative; min-height: 760px; overflow: hidden; color: var(--text); background: transparent; }
.hero::before { content: ""; position: absolute; inset: 0; pointer-events: none; background: repeating-linear-gradient(to bottom, rgba(255,255,255,.018) 0 1px, transparent 1px 4px); }
.hero::after { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, var(--cyan), transparent); opacity: .5; }
.hero-glow { position: absolute; border-radius: 50%; filter: blur(30px); pointer-events: none; animation: pulse 7s ease-in-out infinite alternate; }
.hero-glow-one { width: 620px; height: 620px; right: -140px; top: -170px; background: radial-gradient(circle, rgba(123, 92, 255, .3), transparent 66%); }
.hero-glow-two { width: 480px; height: 480px; left: -180px; bottom: -220px; background: radial-gradient(circle, rgba(0, 240, 255, .16), transparent 70%); animation-delay: -3.5s; }
@keyframes pulse { from { opacity: .65; } to { opacity: 1; } }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 40px; min-height: 760px; padding-block: 72px 90px; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; }
.hero h1 { margin: 0; font-size: clamp(40px, 5vw, 68px); line-height: 1.3; text-shadow: 0 0 60px rgba(0, 240, 255, .12); }
.hero h1 span { background: linear-gradient(95deg, var(--cyan) 10%, #9d8bff 55%, var(--magenta)); -webkit-background-clip: text; background-clip: text; color: transparent; filter: drop-shadow(0 0 26px rgba(0, 240, 255, .45)); }
h2 span { background: linear-gradient(95deg, var(--cyan), #9d8bff 70%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-lead { margin: 28px 0; color: var(--muted); font-size: 17px; font-weight: 400; line-height: 2.05; }
.hero-offer { position: relative; display: flex; align-items: center; gap: 20px; width: fit-content; padding: 16px 22px; border: 1px solid var(--line); background: rgba(0, 240, 255, .04); }
.hero-offer::before, .hero-offer::after { content: ""; position: absolute; width: 14px; height: 14px; }
.hero-offer::before { top: -1px; left: -1px; border-top: 2px solid var(--cyan); border-left: 2px solid var(--cyan); }
.hero-offer::after { right: -1px; bottom: -1px; border-right: 2px solid var(--cyan); border-bottom: 2px solid var(--cyan); }
.hero-offer strong { font-size: 20px; font-weight: 700; }
.hero-offer strong span { display: block; color: var(--cyan); font-family: var(--font-num); font-size: 10px; font-weight: 500; letter-spacing: .3em; text-transform: uppercase; }
.hero-offer small { color: var(--muted); font-size: 12px; }
.hero-actions { display: flex; align-items: center; gap: 28px; margin-top: 30px; }
.text-link { color: var(--muted); font-size: 13px; font-weight: 500; letter-spacing: .05em; }
.text-link:hover { color: var(--cyan); }
.text-link span { margin-left: 5px; color: var(--cyan); }
.microcopy { margin: 12px 0 0; color: var(--dim); font-size: 11px; }

.hero-visual { position: relative; min-height: 570px; }
.phone { position: absolute; z-index: 2; top: 16px; left: 50%; width: 310px; padding: 10px; transform: translateX(-50%) rotate(2deg); border: 1px solid rgba(0, 240, 255, .4); border-radius: 42px; background: #05070f; box-shadow: 0 42px 95px rgba(0, 0, 0, .6), 0 0 55px rgba(0, 240, 255, .12); }
.phone-top { position: absolute; z-index: 3; top: 16px; left: 50%; width: 82px; height: 21px; transform: translateX(-50%); border-radius: 20px; background: #03040a; }
.phone-screen { min-height: 535px; padding: 20px 14px 14px; overflow: hidden; color: var(--text); background: #0a0e1e; border-radius: 33px; }
.mock-head { display: flex; align-items: center; justify-content: space-between; padding: 7px 3px 13px; }
.mock-logo { color: var(--cyan); font-size: 12px; font-weight: 800; letter-spacing: .04em; }
.mock-area { padding: 3px 8px; color: var(--muted); background: var(--panel-2); border: 1px solid var(--line-soft); border-radius: 3px; font-size: 9px; }
.mock-label { margin: 8px 2px; color: var(--muted); font-size: 11px; font-weight: 700; }
.store-card { overflow: hidden; background: var(--panel-2); border: 1px solid var(--line-soft); border-radius: 8px; }
.store-image { display: grid; place-items: center; height: 112px; color: rgba(255,255,255,.7); background: linear-gradient(145deg, #131a3a, #47237a 55%, #b02e6a); font-size: 10px; letter-spacing: .1em; }
.store-body { padding: 12px; }
.store-status { display: flex; justify-content: space-between; align-items: center; }
.store-status span { padding: 2px 8px; color: #00ffa3; background: rgba(0, 255, 163, .1); border: 1px solid rgba(0, 255, 163, .35); border-radius: 3px; font-size: 9px; font-weight: 700; }
.store-status small { color: var(--dim); font-size: 8px; }
.store-body h3 { margin: 7px 0 1px; font-size: 15px; }
.store-body p { margin: 0; color: var(--muted); font-size: 9px; }
.store-price { display: flex; justify-content: space-between; align-items: baseline; margin-top: 10px; padding-top: 9px; border-top: 1px solid var(--line-soft); font-size: 9px; }
.store-price strong { color: var(--cyan); font-family: var(--font-num); font-size: 14px; font-weight: 600; }
.sim-card { margin-top: 10px; padding: 11px; background: linear-gradient(135deg, rgba(0,240,255,.08), rgba(123,92,255,.12)); border: 1px solid var(--line); border-radius: 8px; color: var(--text); }
.sim-card > span { color: var(--cyan); font-size: 8px; letter-spacing: .12em; }
.sim-card div { display: flex; align-items: flex-end; justify-content: space-between; margin-top: 6px; }
.sim-card small { color: var(--muted); font-size: 8px; }
.sim-card strong { color: var(--cyan); font-family: var(--font-num); font-size: 11px; font-weight: 600; }
.float-card { position: absolute; z-index: 3; display: flex; flex-direction: column; min-width: 180px; padding: 12px 15px; background: rgba(9, 12, 26, .92); border: 1px solid var(--line); border-radius: var(--radius); color: var(--text); box-shadow: 0 18px 45px rgba(0,0,0,.5), 0 0 24px rgba(0, 240, 255, .08); backdrop-filter: blur(8px); }
.float-card b { color: var(--cyan); font-size: 12px; }
.float-card span { color: var(--muted); font-size: 9px; }
.float-card-one { top: 135px; left: -8px; }
.float-card-two { right: -10px; bottom: 105px; }

/* ===== trust strip ===== */
.trust-strip { position: relative; z-index: 2; margin-top: -1px; color: var(--text); background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line-soft); }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.trust-grid > div { padding: 28px 30px; text-align: center; border-right: 1px solid var(--line-soft); }
.trust-grid > div:last-child { border-right: 0; }
.trust-grid b { display: block; font-size: 14px; font-weight: 700; }
.trust-grid span { color: var(--muted); font-size: 11px; }

/* ===== sections ===== */
.section { position: relative; padding-block: 140px; }
.section-heading { margin-bottom: 72px; }
.section-heading.centered { max-width: 780px; margin-inline: auto; text-align: center; }
.section-heading h2, .problem-section h2, .ai-intro h2, .operation-grid h2, .story-copy h2, .final-cta h2 { margin: 0; font-size: clamp(29px, 3.7vw, 48px); line-height: 1.5; }
.section-heading > p:last-child { margin: 22px auto 0; max-width: 670px; color: var(--muted); }
.split-heading { display: grid; grid-template-columns: 1fr .72fr; align-items: end; gap: 65px; }
.split-heading > p { margin: 0; color: var(--muted); }

/* ===== problem ===== */
.problem-section { background: var(--bg-2); border-block: 1px solid var(--line-soft); text-align: center; }
.problem-section h2 { font-size: clamp(26px, 3.5vw, 42px); }
.worry-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 56px; text-align: left; }
.worry-card { position: relative; display: flex; align-items: center; gap: 18px; min-height: 88px; padding: 18px 24px; background: var(--panel); border: 1px solid var(--line-soft); transition: border-color .25s, box-shadow .25s; }
.worry-card:hover { border-color: var(--line); box-shadow: 0 0 24px rgba(0, 240, 255, .08); }
.worry-card span { display: grid; place-items: center; flex: 0 0 auto; width: 38px; height: 38px; color: var(--cyan); background: rgba(0, 240, 255, .07); border: 1px solid var(--line); font-family: var(--font-num); font-size: 13px; font-weight: 500; }
.worry-card p { margin: 0; font-size: 14px; font-weight: 500; }
.problem-answer { margin: 50px 0 0; color: var(--muted); font-size: 17px; }
.problem-answer strong { color: var(--cyan); text-shadow: 0 0 16px rgba(0, 240, 255, .4); }

/* ===== about ===== */
.about-section { overflow: hidden; }
.info-map { position: relative; display: grid; grid-template-columns: 1fr 210px 1fr; align-items: center; gap: 40px; max-width: 940px; margin: 85px auto 0; }
.info-map::before { content: ""; position: absolute; z-index: -1; top: 50%; left: 12%; right: 12%; height: 1px; background: linear-gradient(90deg, var(--cyan), var(--violet), var(--magenta)); box-shadow: 0 0 14px rgba(0, 240, 255, .5); }
.info-source, .info-result { padding: 30px; background: var(--panel); border: 1px solid var(--line-soft); }
.info-source > p, .info-result > p { margin: 0 0 15px; color: var(--cyan); font-family: var(--font-num); font-size: 11px; font-weight: 500; letter-spacing: .26em; text-transform: uppercase; }
.info-source ul, .info-result ul { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 0; padding: 0; list-style: none; }
.info-source li, .info-result li { padding: 8px 10px; background: var(--panel-2); border: 1px solid var(--line-soft); font-size: 11px; font-weight: 500; }
.info-center { display: flex; flex-direction: column; align-items: center; justify-content: center; aspect-ratio: 1; color: var(--text); background: var(--bg); border: 1px solid var(--line); border-radius: 50%; box-shadow: 0 0 0 8px var(--bg), 0 0 45px rgba(0, 240, 255, .25); }
.brand-mark.large { width: 55px; height: 55px; margin-bottom: 11px; font-size: 27px; }
.info-center b { font-size: 14px; }
.info-center small { color: var(--muted); font-size: 8px; }

/* ===== features ===== */
.features-section { background: transparent; }
.feature-row { display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 90px; min-height: 540px; padding: 75px 0; border-top: 1px solid var(--line-soft); }
.feature-row.reverse .feature-content { order: 2; }
.feature-row.reverse .feature-demo { order: 1; }
.feature-number { color: transparent; -webkit-text-stroke: 1px rgba(0, 240, 255, .5); font-family: var(--font-num); font-size: 68px; font-weight: 600; line-height: 1; }
.feature-label { margin: 14px 0 8px; color: var(--magenta); font-family: var(--font-num); font-size: 11px; font-weight: 500; letter-spacing: .3em; text-transform: uppercase; }
.feature-content h3 { margin: 0 0 20px; font-size: 30px; line-height: 1.55; }
.feature-content > p:not(.feature-label) { color: var(--muted); }
.check-list { margin: 24px 0 0; padding: 0; list-style: none; }
.check-list li { position: relative; margin: 11px 0; padding-left: 28px; font-size: 14px; font-weight: 500; }
.check-list li::before { content: "▸"; position: absolute; top: 0; left: 2px; color: var(--cyan); text-shadow: 0 0 8px rgba(0, 240, 255, .7); }
.feature-demo { position: relative; display: grid; place-items: center; min-height: 420px; padding: 45px; border: 1px solid var(--line-soft); overflow: hidden; }
.feature-demo::before { content: ""; position: absolute; inset: 0; opacity: .6; background-image: radial-gradient(rgba(255,255,255,.1) 1px, transparent 1px); background-size: 22px 22px; }
.calculator-demo { background: radial-gradient(500px 420px at 30% 20%, rgba(123, 92, 255, .25), transparent 70%), var(--panel); }
.line-demo { background: radial-gradient(500px 420px at 70% 25%, rgba(0, 255, 163, .14), transparent 70%), var(--panel); }
.ai-demo { background: radial-gradient(500px 420px at 30% 75%, rgba(255, 45, 149, .16), transparent 70%), var(--panel); }
.demo-window, .chat-window, .ai-window { position: relative; z-index: 2; width: min(100%, 390px); padding: 24px; background: rgba(9, 12, 26, .94); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 22px 60px rgba(0, 0, 0, .5), 0 0 32px rgba(0, 240, 255, .07); }
.demo-title, .ai-title { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.demo-title b { color: var(--cyan); letter-spacing: .04em; }
.demo-title span { color: var(--dim); font-family: var(--font-num); font-size: 9px; letter-spacing: .2em; }
.choice-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 7px; margin: 8px 0; }
.choice { padding: 9px 5px; color: var(--muted); background: var(--panel-2); border: 1px solid var(--line-soft); text-align: center; font-size: 10px; }
.choice.active { color: var(--cyan); background: rgba(0, 240, 255, .08); border-color: var(--cyan); font-weight: 700; box-shadow: inset 0 0 14px rgba(0, 240, 255, .12); }
.estimate { display: flex; flex-direction: column; margin-top: 17px; padding: 15px; color: var(--text); background: linear-gradient(120deg, rgba(0,240,255,.08), rgba(255,45,149,.08)); border: 1px solid var(--line); }
.estimate small { color: var(--muted); font-size: 9px; }
.estimate strong { color: var(--cyan); font-family: var(--font-num); font-size: 21px; font-weight: 600; text-shadow: 0 0 14px rgba(0, 240, 255, .5); }
.estimate span { color: var(--muted); font-size: 9px; }
.chat-title { margin: -24px -24px 20px; padding: 13px; color: #04120b; background: #00e676; border-radius: 3px 3px 0 0; text-align: center; font-size: 11px; font-weight: 800; }
.chat-bubble { width: fit-content; max-width: 82%; margin: 10px 0; padding: 10px 12px; background: var(--panel-2); border: 1px solid var(--line-soft); border-radius: 3px; font-size: 10px; }
.chat-bubble.user { margin-left: auto; color: #06170f; background: #7df0b2; border: 0; }
.chat-bubble.success { color: #00ffa3; background: rgba(0, 255, 163, .08); border-color: rgba(0, 255, 163, .3); font-weight: 700; }
.chat-buttons { display: flex; gap: 5px; }
.chat-buttons span { padding: 7px 9px; color: #00ffa3; background: transparent; border: 1px solid rgba(0, 255, 163, .45); font-size: 8px; font-weight: 700; }
.ai-title { justify-content: flex-start; gap: 9px; }
.ai-dot { display: grid; place-items: center; width: 31px; height: 31px; color: #04050d; background: linear-gradient(135deg, var(--cyan), var(--magenta)); border-radius: 3px; font-size: 10px; font-weight: 900; box-shadow: 0 0 16px rgba(255, 45, 149, .4); }
.ai-title b { font-size: 11px; }
.ai-question { margin-left: 36px; padding: 11px; color: #fff; background: linear-gradient(110deg, rgba(255,45,149,.25), rgba(123,92,255,.25)); border: 1px solid rgba(255, 45, 149, .35); border-radius: 3px; font-size: 10px; }
.ai-answer { display: flex; gap: 9px; margin-top: 15px; }
.ai-answer i { flex: 0 0 auto; width: 22px; height: 22px; background: linear-gradient(135deg, var(--cyan), var(--violet)); border-radius: 3px; }
.ai-answer p { margin: 0; padding: 10px; background: var(--panel-2); border: 1px solid var(--line-soft); border-radius: 3px; font-size: 10px; }
.ai-tags { display: flex; flex-wrap: wrap; gap: 5px; margin: 13px 0 0 31px; }
.ai-tags span { padding: 3px 8px; color: var(--cyan); background: rgba(0, 240, 255, .06); border: 1px solid var(--line); font-size: 8px; }

/* ===== AI search ===== */
.ai-search-section { position: relative; overflow: hidden; color: var(--text); background: var(--bg-2); border-block: 1px solid var(--line-soft); }
.ai-search-section::before { content: ""; position: absolute; width: 800px; height: 800px; right: -320px; top: -320px; background: radial-gradient(circle, rgba(123, 92, 255, .22), transparent 66%); }
.ai-intro { position: relative; display: grid; grid-template-columns: 1.1fr .9fr; align-items: end; gap: 80px; }
.ai-intro h2 span, .story-copy h2 span, .final-cta h2 span { background: linear-gradient(95deg, var(--cyan), var(--magenta)); -webkit-background-clip: text; background-clip: text; color: transparent; filter: drop-shadow(0 0 20px rgba(0, 240, 255, .3)); }
.ai-intro > p { margin: 0; color: var(--muted); }
.prompt-cloud { position: relative; display: grid; grid-template-columns: 1fr 1.2fr 1fr; gap: 18px; margin: 75px 0 55px; }
.prompt-card { position: relative; padding: 26px; color: var(--muted); background: var(--panel); border: 1px solid var(--line-soft); font-size: 14px; font-weight: 500; }
.prompt-card::after { content: ""; position: absolute; bottom: -7px; left: 26px; width: 13px; height: 13px; transform: rotate(45deg); background: var(--panel); border-right: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }
.prompt-card.featured { transform: translateY(-14px); color: #fff; background: linear-gradient(120deg, rgba(0,240,255,.08), rgba(255,45,149,.1)); border-color: var(--line); box-shadow: 0 0 36px rgba(0, 240, 255, .12); }
.prompt-card.featured::after { background: #101430; border-color: var(--line); }
.llmo-card { position: relative; z-index: 1; padding: 46px 48px; background: var(--panel); border: 1px solid var(--line); }
.llmo-card::before, .llmo-card::after { content: ""; position: absolute; width: 18px; height: 18px; }
.llmo-card::before { top: -1px; left: -1px; border-top: 2px solid var(--cyan); border-left: 2px solid var(--cyan); }
.llmo-card::after { right: -1px; bottom: -1px; border-right: 2px solid var(--magenta); border-bottom: 2px solid var(--magenta); }
.llmo-title { display: flex; align-items: center; gap: 26px; margin-bottom: 22px; }
.llmo-title > span { display: grid; flex: 0 0 auto; place-items: center; width: 78px; height: 78px; color: var(--cyan); background: rgba(0, 240, 255, .05); border: 1px solid var(--cyan); font-family: var(--font-num); font-size: 16px; font-weight: 500; letter-spacing: .12em; box-shadow: inset 0 0 24px rgba(0, 240, 255, .12), 0 0 22px rgba(0, 240, 255, .18); }
.llmo-title p { margin: 0 0 6px; color: var(--magenta); font-size: 11px; font-weight: 600; letter-spacing: .08em; }
.llmo-title h3 { margin: 0; font-size: 24px; line-height: 1.55; }
.llmo-card > p { max-width: 860px; color: var(--muted); font-size: 14px; }
.data-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 30px; }
.data-grid > div { padding: 18px 16px; background: var(--bg); border: 1px solid var(--line-soft); }
.data-grid b { display: block; color: var(--cyan); font-size: 13px; }
.data-grid span { color: var(--muted); font-size: 10px; }
.ai-value-grid { position: relative; z-index: 1; display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 70px; margin-top: 65px; }
.mini-label { margin: 0 0 8px; color: var(--magenta); font-family: var(--font-num); font-size: 11px; font-weight: 500; letter-spacing: .3em; text-transform: uppercase; }
.ai-value-copy h3 { margin: 0 0 14px; font-size: 27px; }
.ai-value-copy p { margin: 0; color: var(--muted); font-size: 14px; }
.ai-value-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 0; padding: 0; list-style: none; }
.ai-value-list li { display: flex; align-items: center; gap: 14px; padding: 18px 19px; background: var(--panel); border: 1px solid var(--line-soft); font-size: 12px; font-weight: 500; transition: border-color .25s; }
.ai-value-list li:hover { border-color: var(--line); }
.ai-value-list span { color: var(--cyan); font-family: var(--font-num); font-size: 15px; font-weight: 500; }
.notice { margin: 48px 0 0; color: var(--dim); font-size: 10px; text-align: center; }

/* ===== role ===== */
.role-section { background: transparent; }
.role-table { max-width: 860px; margin: 0 auto; overflow: hidden; background: var(--panel); border: 1px solid var(--line-soft); }
.role-row { display: grid; grid-template-columns: .8fr 1.2fr; }
.role-row + .role-row { border-top: 1px solid var(--line-soft); }
.role-row > * { padding: 18px 26px; font-size: 13px; }
.role-row b { border-right: 1px solid var(--line-soft); font-weight: 600; }
.role-head { color: var(--cyan); background: var(--panel-2); font-family: var(--font-num); font-size: 11px; font-weight: 500; letter-spacing: .24em; text-transform: uppercase; }
.role-head span:first-child { border-right: 1px solid var(--line-soft); }
.role-row.highlight { position: relative; color: #fff; background: linear-gradient(110deg, rgba(0,240,255,.1), rgba(255,45,149,.1)); box-shadow: inset 0 0 0 1px var(--line); }
.role-row.highlight b { color: var(--cyan); border-right-color: var(--line); text-shadow: 0 0 12px rgba(0, 240, 255, .5); }

/* ===== operation ===== */
.operation-grid { display: grid; grid-template-columns: 1fr .9fr; align-items: center; gap: 80px; }
.operation-grid > div:first-child p { color: var(--muted); }
.operation-cards { display: grid; gap: 12px; }
.operation-cards > div { display: flex; align-items: center; gap: 17px; padding: 18px 22px; background: var(--panel); border: 1px solid var(--line-soft); border-left: 2px solid var(--cyan); }
.operation-cards span { flex: 0 0 auto; padding: 5px 12px; color: var(--cyan); background: rgba(0, 240, 255, .06); border: 1px solid var(--line); font-size: 10px; font-weight: 700; }
.operation-cards b { font-size: 13px; font-weight: 600; }

/* ===== measurement ===== */
.measurement-section { background: var(--bg-2); border-block: 1px solid var(--line-soft); }
.measurement-flow { display: flex; justify-content: center; gap: 10px; margin-bottom: 70px; }
.measurement-step { display: flex; flex-direction: column; justify-content: center; min-width: 145px; min-height: 114px; padding: 18px 16px; background: var(--panel); border: 1px solid var(--line-soft); text-align: center; }
.measurement-step span { color: var(--dim); font-family: var(--font-num); font-size: 11px; font-weight: 500; letter-spacing: .18em; }
.measurement-step b { margin: 3px 0; font-size: 14px; font-weight: 600; }
.measurement-step small { color: var(--muted); font-size: 9px; }
.measurement-step.final { color: #fff; background: linear-gradient(135deg, rgba(0,240,255,.14), rgba(255,45,149,.16)); border: 1px solid var(--cyan); box-shadow: 0 0 32px rgba(0, 240, 255, .2); }
.measurement-step.final span, .measurement-step.final small { color: var(--cyan); }
.measurement-flow > i { align-self: center; color: var(--magenta); font-size: 26px; font-style: normal; font-weight: 300; text-shadow: 0 0 10px rgba(255, 45, 149, .6); }
.measurement-grid { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 85px; }
.report-card { padding: 30px; background: var(--panel); border: 1px solid var(--line); color: var(--text); box-shadow: 0 22px 58px rgba(0,0,0,.4), 0 0 38px rgba(0, 240, 255, .06); }
.report-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 15px; }
.report-head span { display: block; color: var(--cyan); font-family: var(--font-num); font-size: 10px; font-weight: 500; letter-spacing: .24em; }
.report-head b { display: block; margin-top: 4px; font-size: 20px; font-weight: 700; }
.report-head em { padding: 5px 10px; color: #00ffa3; background: rgba(0, 255, 163, .08); border: 1px solid rgba(0, 255, 163, .3); font-family: var(--font-num); font-size: 10px; font-style: normal; font-weight: 500; }
.report-chart { display: flex; align-items: flex-end; gap: 10px; height: 145px; margin-top: 26px; padding: 0 8px; border-bottom: 1px solid var(--line); background: repeating-linear-gradient(to bottom, transparent 0, transparent 35px, rgba(0, 240, 255, .06) 36px); }
.report-chart span { flex: 1; min-height: 7px; background: linear-gradient(to top, var(--violet), var(--cyan)); box-shadow: 0 0 14px rgba(0, 240, 255, .3); }
.report-axis { display: flex; justify-content: space-between; padding: 8px 7px 0; color: var(--dim); font-family: var(--font-num); font-size: 9px; letter-spacing: .1em; }
.report-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; margin-top: 24px; }
.report-stats > div { padding: 13px; background: var(--panel-2); border: 1px solid var(--line-soft); }
.report-stats small { display: block; color: var(--muted); font-size: 9px; }
.report-stats b { display: block; margin-top: 3px; font-family: var(--font-num); font-size: 24px; font-weight: 500; }
.report-stats b.accent { color: var(--cyan); text-shadow: 0 0 14px rgba(0, 240, 255, .6); }
.measurement-copy h3 { margin: 5px 0 18px; font-size: 28px; line-height: 1.55; }
.measurement-copy > p:not(.mini-label) { color: var(--muted); }
.measurement-copy .check-list { margin-top: 20px; }
.reward-card { position: relative; display: grid; grid-template-columns: 1fr 118px; align-items: center; gap: 35px; max-width: 960px; margin: 80px auto 0; padding: 42px 48px; overflow: hidden; color: #fff; background: linear-gradient(115deg, #0c1024, #221347 68%, #3d1140); border: 1px solid rgba(255, 45, 149, .3); }
.reward-card::before { content: ""; position: absolute; top: -120px; right: 40px; width: 290px; height: 290px; border-radius: 50%; background: radial-gradient(circle, rgba(255, 45, 149, .35), transparent 68%); }
.reward-badge { position: absolute; top: 0; left: 0; padding: 7px 16px; color: #04050d; background: var(--magenta); font-family: var(--font-num); font-size: 10px; font-weight: 600; letter-spacing: .22em; box-shadow: 0 0 20px rgba(255, 45, 149, .5); }
.reward-content { position: relative; z-index: 1; }
.reward-content > p:first-child { margin: 0 0 8px; color: var(--muted); font-size: 12px; font-weight: 500; }
.reward-content h3 { margin: 0; font-size: 27px; line-height: 1.55; }
.reward-content h3 span { color: var(--magenta); text-shadow: 0 0 18px rgba(255, 45, 149, .5); }
.reward-note { max-width: 630px; margin: 14px 0 0; color: var(--muted); font-size: 11px; }
.reward-mark { position: relative; z-index: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; width: 112px; height: 112px; color: var(--magenta); background: rgba(255, 45, 149, .05); border: 1px solid var(--magenta); border-radius: 50%; box-shadow: inset 0 0 28px rgba(255, 45, 149, .18), 0 0 34px rgba(255, 45, 149, .3); transform: rotate(7deg); }
.reward-mark b { font-family: var(--font-num); font-size: 46px; font-weight: 500; line-height: 1; }
.reward-mark span { margin-top: 2px; font-size: 9px; font-weight: 700; letter-spacing: .08em; line-height: 1.2; text-align: center; }
.measurement-notice { max-width: 960px; margin: 20px auto 0; color: var(--dim); font-size: 10px; text-align: center; }

/* ===== plan ===== */
.plan-section { background: transparent; }
.plan-card { position: relative; display: grid; grid-template-columns: 1fr 1fr; max-width: 900px; margin: 0 auto; overflow: hidden; background: var(--panel); border: 1px solid var(--line); box-shadow: 0 0 60px rgba(0, 240, 255, .08); }
.plan-ribbon { position: absolute; z-index: 2; top: 22px; right: -47px; width: 190px; transform: rotate(40deg); color: #04050d; background: var(--magenta); text-align: center; font-size: 9px; font-weight: 800; letter-spacing: .05em; box-shadow: 0 0 20px rgba(255, 45, 149, .5); }
.plan-main { position: relative; padding: 48px; color: var(--text); background: radial-gradient(420px 380px at 25% 10%, rgba(123, 92, 255, .22), transparent 70%), var(--bg); }
.plan-main::after { content: ""; position: absolute; top: 10%; bottom: 10%; right: 0; width: 1px; background: linear-gradient(to bottom, transparent, var(--line), transparent); }
.plan-main > p:first-child { margin: 0; color: var(--muted); font-size: 12px; font-weight: 500; letter-spacing: .05em; }
.price { display: flex; align-items: flex-end; gap: 14px; margin-top: 30px; }
.price > span { align-self: center; color: var(--cyan); font-family: var(--font-num); font-size: 10px; font-weight: 500; letter-spacing: .2em; writing-mode: vertical-rl; }
.price strong { font-family: var(--font-num); font-size: 44px; font-weight: 500; line-height: 1.15; }
.price b { color: var(--cyan); font-family: var(--font-num); font-size: 84px; font-weight: 500; line-height: .95; text-shadow: 0 0 34px rgba(0, 240, 255, .55); }
.price small { font-size: 20px; }
.initial { width: fit-content; margin: 26px 0 0; padding: 7px 14px; color: var(--cyan); background: rgba(0, 240, 255, .05); border: 1px solid var(--line); font-size: 12px; }
.plan-detail { display: flex; flex-direction: column; justify-content: center; padding: 48px; }
.plan-detail > p { margin: 24px 0 0; padding-top: 20px; color: var(--muted); border-top: 1px solid var(--line-soft); font-size: 12px; }
.plan-detail > p strong { color: var(--text); font-family: var(--font-num); font-size: 17px; font-weight: 500; letter-spacing: .03em; }
.center-action { display: flex; flex-direction: column; align-items: center; margin-top: 42px; }
.center-action span { margin-top: 10px; color: var(--dim); font-size: 10px; }

/* ===== flow ===== */
.flow-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin: 0; padding: 0; list-style: none; }
.flow-list li { position: relative; padding: 30px 24px; background: var(--panel); border: 1px solid var(--line-soft); border-top: 2px solid var(--cyan); }
.flow-list li:not(:last-child)::after { content: "›"; position: absolute; z-index: 2; top: 50%; right: -13px; display: grid; place-items: center; width: 25px; height: 25px; transform: translateY(-50%); color: var(--cyan); background: var(--bg); border: 1px solid var(--line); border-radius: 50%; font-weight: 700; }
.flow-list li > span { color: var(--cyan); font-family: var(--font-num); font-size: 30px; font-weight: 500; }
.flow-list b { display: block; margin: 8px 0; font-size: 14px; font-weight: 600; }
.flow-list p { margin: 0; color: var(--muted); font-size: 11px; }

/* ===== story ===== */
.story-section { color: var(--text); background: var(--bg-2); border-block: 1px solid var(--line-soft); }
.story-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; }
.story-body { color: var(--muted); }
.story-body p { margin-top: 0; }
.story-body strong { display: block; margin-top: 30px; padding-left: 22px; color: #fff; border-left: 2px solid var(--cyan); font-size: 18px; font-weight: 600; box-shadow: -1px 0 0 rgba(0,240,255,.0); text-shadow: 0 0 24px rgba(0, 240, 255, .2); }

/* ===== faq ===== */
.faq-section { background: transparent; }
.faq-list { border-top: 1px solid var(--line-soft); }
.faq-list details { border-bottom: 1px solid var(--line-soft); }
.faq-list summary { position: relative; padding: 25px 52px 25px 8px; cursor: pointer; list-style: none; font-weight: 600; transition: color .2s; }
.faq-list summary:hover { color: var(--cyan); }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::before { content: "Q"; display: inline-grid; place-items: center; width: 28px; height: 28px; margin-right: 14px; color: var(--cyan); background: rgba(0, 240, 255, .06); border: 1px solid var(--line); font-family: var(--font-num); font-size: 13px; }
.faq-list summary::after { content: "+"; position: absolute; top: 24px; right: 9px; color: var(--magenta); font-size: 24px; font-weight: 300; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { margin: -5px 50px 26px; color: var(--muted); font-size: 14px; }

/* ===== final CTA ===== */
.final-cta { position: relative; overflow: hidden; padding: 150px 0; color: var(--text); background: var(--bg-2); border-top: 1px solid var(--line-soft); text-align: center; }
.final-glow { position: absolute; top: 50%; left: 50%; width: 900px; height: 520px; transform: translate(-50%,-50%); background: radial-gradient(ellipse, rgba(123, 92, 255, .25), rgba(0, 240, 255, .08) 50%, transparent 70%); animation: pulse 6s ease-in-out infinite alternate; }
.final-inner { position: relative; z-index: 2; }
.final-cta p:not(.section-kicker) { color: var(--muted); }
.final-cta .button { margin-top: 24px; }
.final-cta small { display: block; margin-top: 14px; color: var(--dim); }

/* ===== footer ===== */
.site-footer { padding: 40px 0 100px; color: var(--muted); background: #020309; border-top: 1px solid var(--line-soft); }
.footer-inner { display: flex; align-items: center; gap: 35px; }
.footer-brand { color: #fff; }
.site-footer nav { display: flex; gap: 24px; margin-left: auto; font-size: 11px; }
.site-footer nav a:hover { color: var(--cyan); }
.site-footer > small, .footer-inner > small { font-size: 10px; }
.mobile-cta { display: none; }

@media (max-width: 900px) {
  .header-nav { display: none; }
  .header-inner { height: 67px; }
  .header-inner .button-small { margin-left: auto; }
  .hero-grid { grid-template-columns: 1fr; min-height: auto; padding-block: 70px; }
  .hero-copy { text-align: center; }
  .eyebrow, .hero-offer, .hero-actions { margin-inline: auto; }
  .hero-visual { min-height: 590px; }
  .float-card-one { left: 6%; }
  .float-card-two { right: 6%; }
  .split-heading, .ai-intro, .operation-grid, .story-grid { grid-template-columns: 1fr; gap: 30px; }
  .info-map { grid-template-columns: 1fr; max-width: 460px; }
  .info-map::before { top: 10%; bottom: 10%; left: 50%; right: auto; width: 1px; height: auto; }
  .info-center { width: 190px; margin: auto; }
  .feature-row { grid-template-columns: 1fr; gap: 35px; }
  .feature-row.reverse .feature-content, .feature-row.reverse .feature-demo { order: initial; }
  .prompt-cloud { grid-template-columns: 1fr; }
  .prompt-card.featured { transform: none; }
  .data-grid { grid-template-columns: repeat(2, 1fr); }
  .ai-value-grid { grid-template-columns: 1fr; gap: 30px; }
  .measurement-flow { flex-wrap: wrap; max-width: 630px; }
  .measurement-flow > i { transform: rotate(90deg); }
  .measurement-grid { grid-template-columns: 1fr; gap: 35px; }
  .reward-card { max-width: 700px; }
  .plan-card { grid-template-columns: 1fr; max-width: 520px; }
  .plan-main::after { display: none; }
  .flow-list { grid-template-columns: 1fr 1fr; }
  .flow-list li:nth-child(2)::after { display: none; }
}

@media (max-width: 640px) {
  body { font-size: 15px; }
  .container { width: min(calc(100% - 28px), var(--container)); }
  .site-header .brand-mark { width: 33px; height: 33px; }
  .header-inner .button-small { min-height: 38px; padding: 7px 14px; font-size: 11px; }
  .brand b { font-size: 13px; }
  .hero { min-height: auto; }
  .hero-grid { padding-top: 56px; padding-bottom: 42px; }
  .hero h1 { font-size: 35px; }
  .hero-lead { font-size: 15px; }
  .desktop-only { display: none; }
  .hero-offer { flex-direction: column; gap: 1px; padding: 13px 18px; }
  .hero-offer strong { font-size: 18px; }
  .hero-actions { flex-direction: column; gap: 14px; }
  .hero-actions .button { width: 100%; }
  .hero-visual { min-height: 510px; margin-top: 15px; transform: scale(.86); transform-origin: top center; }
  .float-card-one { left: -4%; }
  .float-card-two { right: -4%; bottom: 25px; }
  .trust-grid { grid-template-columns: 1fr; padding-block: 8px; }
  .trust-grid > div { padding: 15px; border-right: 0; border-bottom: 1px solid var(--line-soft); }
  .trust-grid > div:last-child { border-bottom: 0; }
  .section { padding-block: 85px; }
  .section-heading { margin-bottom: 44px; }
  .section-heading h2, .problem-section h2, .ai-intro h2, .operation-grid h2, .story-copy h2, .final-cta h2 { font-size: 26px; }
  .worry-grid { grid-template-columns: 1fr; margin-top: 35px; }
  .problem-answer { font-size: 15px; }
  .info-source ul, .info-result ul { grid-template-columns: 1fr 1fr; }
  .feature-row { min-height: auto; padding: 52px 0; }
  .feature-number { font-size: 48px; }
  .feature-content h3 { font-size: 23px; }
  .feature-demo { min-height: 345px; padding: 24px 14px; }
  .prompt-cloud { margin: 40px 0 30px; }
  .llmo-card { padding: 26px 20px; }
  .llmo-title { align-items: flex-start; gap: 15px; }
  .llmo-title > span { width: 62px; height: 62px; font-size: 13px; }
  .llmo-title h3 { font-size: 19px; }
  .llmo-title p { font-size: 9px; }
  .data-grid { grid-template-columns: 1fr 1fr; }
  .measurement-flow { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 42px; }
  .measurement-flow > i { display: none; }
  .measurement-step { min-width: 0; min-height: 92px; padding: 12px 8px; }
  .measurement-step b { font-size: 12px; }
  .measurement-step small { font-size: 8px; }
  .report-card { padding: 21px 17px; }
  .report-head b { font-size: 17px; }
  .report-chart { gap: 6px; height: 115px; }
  .measurement-copy h3 { font-size: 22px; }
  .reward-card { grid-template-columns: 1fr; gap: 22px; padding: 36px 23px 27px; }
  .reward-content h3 { font-size: 21px; }
  .reward-mark { width: 88px; height: 88px; margin-left: auto; }
  .reward-mark b { font-size: 34px; }
  .data-grid > div { padding: 12px; }
  .role-row { grid-template-columns: .85fr 1.15fr; }
  .role-row > * { padding: 14px 12px; font-size: 11px; }
  .operation-cards { grid-template-columns: 1fr; }
  .plan-main, .plan-detail { padding: 36px 25px; }
  .price { gap: 9px; }
  .price strong { font-size: 35px; }
  .price b { font-size: 66px; }
  .flow-list { grid-template-columns: 1fr; }
  .flow-list li::after { display: none !important; }
  .story-body strong { font-size: 16px; }
  .faq-list summary { padding-right: 35px; font-size: 13px; }
  .faq-list summary::before { display: none; }
  .faq-list details p { margin: -3px 9px 22px; font-size: 13px; }
  .final-cta { padding-block: 90px 110px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .site-footer nav { flex-wrap: wrap; gap: 10px 18px; margin-left: 0; }
  .mobile-cta { position: fixed; z-index: 90; right: 0; bottom: 0; left: 0; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 9px 14px calc(9px + env(safe-area-inset-bottom)); color: #fff; background: rgba(4, 5, 13, .95); border-top: 1px solid var(--line); backdrop-filter: blur(15px); }
  .mobile-cta div { line-height: 1.2; }
  .mobile-cta small { display: block; color: var(--cyan); font-size: 9px; }
  .mobile-cta b { font-size: 15px; }
  .mobile-cta .button { min-height: 44px; padding: 9px 23px; font-size: 13px; }
}


/* ===== 効果測定グラフ: 左から順に立ち上がるアニメーション =====
   .chart-animate はJSが付与するため、JS無効時はバーが常時表示される */
/* 初期非表示はスナップ（transitionなし）、is-visible遷移時のみアニメーション。
   これによりクラス付与時に scaleY(1)→0 へ縮む不要な動きを防ぐ */
.report-chart.chart-animate span {
  transform: scaleY(0);
  transform-origin: bottom;
}
.report-chart.chart-animate.is-visible span {
  transform: scaleY(1);
  transition: transform .65s cubic-bezier(.22, .9, .3, 1);
}
.report-chart.chart-animate.is-visible span:nth-child(2) { transition-delay: .1s; }
.report-chart.chart-animate.is-visible span:nth-child(3) { transition-delay: .2s; }
.report-chart.chart-animate.is-visible span:nth-child(4) { transition-delay: .3s; }
.report-chart.chart-animate.is-visible span:nth-child(5) { transition-delay: .4s; }
.report-chart.chart-animate.is-visible span:nth-child(6) { transition-delay: .5s; }
.report-chart.chart-animate.is-visible span:nth-child(7) { transition-delay: .6s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}

/* ===== 1200px image assets / section visual treatment =====
   The LP uses the supplied 1200px images as restrained eye-catchers. Each
   photographic section gets a dark overlay so the copy remains readable. */
.brand-logo {
  display: block;
  width: 158px;
  height: auto;
  max-width: none;
  filter: drop-shadow(0 0 13px rgba(255, 45, 149, .3));
}
.footer-brand .brand-logo { width: 150px; }

.hero {
  background-image:
    linear-gradient(90deg, rgba(4, 5, 13, .98) 0%, rgba(4, 5, 13, .88) 36%, rgba(4, 5, 13, .48) 72%, rgba(4, 5, 13, .7) 100%),
    url('../img/01-hero-neon-street.jpg');
  background-position: center;
  background-size: cover;
}
.hero::before {
  z-index: 0;
  background:
    linear-gradient(180deg, rgba(4, 5, 13, .2), rgba(4, 5, 13, .42)),
    repeating-linear-gradient(to bottom, rgba(255,255,255,.018) 0 1px, transparent 1px 4px);
}
.hero-grid { position: relative; z-index: 1; }
.hero-copy { text-shadow: 0 2px 22px rgba(0, 0, 0, .7); }
.hero-visual::before {
  content: "";
  position: absolute;
  z-index: 0;
  inset: 36px -28px 28px;
  border: 1px solid rgba(0, 240, 255, .22);
  background:
    linear-gradient(135deg, rgba(4, 5, 13, .42), rgba(4, 5, 13, .78)),
    url('../img/02-phone-venue-finder.jpg') center / cover;
  box-shadow: 0 0 55px rgba(0, 240, 255, .08);
  opacity: .82;
  transform: rotate(-2deg);
}

.problem-section,
.about-section,
.ai-search-section,
.role-section,
.measurement-section,
.plan-section,
.flow-section,
.story-section,
.faq-section,
.final-cta { isolation: isolate; }
.problem-section > .container,
.about-section > .container,
.ai-search-section > .container,
.role-section > .container,
.measurement-section > .container,
.plan-section > .container,
.flow-section > .container,
.story-section > .container,
.faq-section > .container,
.final-cta > .container { position: relative; z-index: 1; }

.problem-section {
  background-image:
    linear-gradient(90deg, rgba(9, 12, 26, .97), rgba(9, 12, 26, .8)),
    url('../img/03-newcomer-night-street.jpg');
  background-position: center;
  background-size: cover;
}
.about-section {
  background-image:
    linear-gradient(90deg, rgba(4, 5, 13, .98) 0%, rgba(4, 5, 13, .88) 50%, rgba(4, 5, 13, .63) 100%),
    url('../img/04-venue-data-flow.jpg');
  background-position: center;
  background-size: cover;
}
.ai-search-section {
  background-image:
    linear-gradient(90deg, rgba(9, 12, 26, .95), rgba(9, 12, 26, .78)),
    url('../img/07-ai-search-map.jpg');
  background-position: center;
  background-size: cover;
}
.role-section {
  background-image:
    linear-gradient(90deg, rgba(4, 5, 13, .97), rgba(4, 5, 13, .84)),
    url('../img/02-phone-venue-finder.jpg');
  background-position: center;
  background-size: cover;
}
.measurement-section {
  background-image:
    linear-gradient(90deg, rgba(9, 12, 26, .97), rgba(9, 12, 26, .78)),
    url('../img/08-analytics-coupon-funnel.jpg');
  background-position: center;
  background-size: cover;
}
.plan-section {
  background-image:
    linear-gradient(90deg, rgba(4, 5, 13, .98), rgba(4, 5, 13, .84)),
    url('../img/05-price-calculator.jpg');
  background-position: center;
  background-size: cover;
}
.flow-section {
  background-image:
    linear-gradient(90deg, rgba(4, 5, 13, .97), rgba(4, 5, 13, .84)),
    url('../img/04-venue-data-flow.jpg');
  background-position: center;
  background-size: cover;
}
.story-section {
  background-image:
    linear-gradient(90deg, rgba(9, 12, 26, .96), rgba(9, 12, 26, .75)),
    url('../img/10-manager-report.jpg');
  background-position: center;
  background-size: cover;
}
.faq-section {
  background-image:
    linear-gradient(90deg, rgba(4, 5, 13, .98), rgba(4, 5, 13, .88)),
    url('../img/11-developer-workstation.jpg');
  background-position: center;
  background-size: cover;
}
.final-cta {
  background-image:
    linear-gradient(180deg, rgba(9, 12, 26, .76), rgba(4, 5, 13, .92)),
    url('../img/12-fukuoka-skyline.jpg');
  background-position: center 42%;
  background-size: cover;
}

.feature-demo {
  background-size: cover;
  background-position: center;
}
.feature-demo::after {
  content: "";
  position: absolute;
  z-index: 1;
  inset: 0;
  background: linear-gradient(135deg, rgba(4, 5, 13, .72), rgba(4, 5, 13, .44));
  pointer-events: none;
}
.calculator-demo {
  background-image: url('../img/05-price-calculator.jpg');
}
.line-demo {
  background-image: url('../img/06-staff-line-update.jpg');
}
.ai-demo {
  background-image: url('../img/07-ai-search-map.jpg');
}
.feature-demo::before { z-index: 1; }

.operation-grid {
  grid-template-columns: 1fr .82fr .78fr;
}
.operation-image {
  position: relative;
  min-height: 340px;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 22px 58px rgba(0, 0, 0, .45), 0 0 34px rgba(0, 240, 255, .08);
}
.operation-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(4, 5, 13, .1), rgba(4, 5, 13, .58));
}
.operation-image img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 340px;
  object-fit: cover;
}

.reward-card {
  background-image:
    linear-gradient(115deg, rgba(12, 16, 36, .91), rgba(34, 19, 71, .78) 68%, rgba(61, 17, 64, .8)),
    url('../img/09-ranking-video-reward.jpg');
  background-position: center;
  background-size: cover;
}

@media (max-width: 900px) {
  .brand-logo { width: 145px; }
  .operation-grid { grid-template-columns: 1fr; }
  .operation-image { min-height: 300px; }
  .operation-image img { min-height: 300px; }
}

@media (max-width: 640px) {
  .brand-logo { width: 126px; }
  .footer-brand .brand-logo { width: 135px; }
  .hero-visual::before { inset: 24px -12px 22px; }
  .operation-image { min-height: 235px; }
  .operation-image img { min-height: 235px; }
}

/* ===== image clarity pass =====
   Keep the night mood, but do not bury the supplied images under opaque
   gradients. Large photos are now placed to the side of copy, while cards
   and foreground frames carry the readable text. */
.hero {
  background-image:
    linear-gradient(90deg, rgba(4, 5, 13, .88) 0%, rgba(4, 5, 13, .68) 37%, rgba(4, 5, 13, .18) 76%, rgba(4, 5, 13, .38) 100%),
    url('../img/01-hero-neon-street.jpg');
  background-position: center;
  background-size: cover;
}
.hero::before {
  background:
    linear-gradient(180deg, rgba(4, 5, 13, .08), rgba(4, 5, 13, .22)),
    repeating-linear-gradient(to bottom, rgba(255,255,255,.018) 0 1px, transparent 1px 4px);
}
.hero-visual::before {
  background:
    linear-gradient(135deg, rgba(4, 5, 13, .14), rgba(4, 5, 13, .38)),
    url('../img/02-phone-venue-finder.jpg') center / cover;
  opacity: .96;
  filter: saturate(1.15) contrast(1.06);
}

.problem-section,
.about-section,
.role-section,
.plan-section,
.flow-section,
.faq-section { background: var(--bg-2); }

.problem-section::after,
.about-section::after,
.role-section::after,
.plan-section::after,
.flow-section::after,
.faq-section::after,
.ai-search-section::after,
.measurement-section::after,
.story-section::after,
.final-cta::after {
  content: "";
  position: absolute;
  z-index: 0;
  top: 0;
  right: 0;
  bottom: 0;
  width: 48%;
  pointer-events: none;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  opacity: .58;
  filter: saturate(1.18) contrast(1.08);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 23%, #000 100%);
  mask-image: linear-gradient(90deg, transparent 0%, #000 23%, #000 100%);
}
.problem-section::after { background-image: url('../img/03-newcomer-night-street.jpg'); }
.about-section::after { background-image: url('../img/04-venue-data-flow.jpg'); }
.role-section::after { background-image: url('../img/02-phone-venue-finder.jpg'); }
.plan-section::after { background-image: url('../img/05-price-calculator.jpg'); }
.flow-section::after { background-image: url('../img/04-venue-data-flow.jpg'); }
.faq-section::after { background-image: url('../img/11-developer-workstation.jpg'); }
.ai-search-section::after { background-image: url('../img/07-ai-search-map.jpg'); }
.measurement-section::after { background-image: url('../img/08-analytics-coupon-funnel.jpg'); }
.story-section::after { background-image: url('../img/10-manager-report.jpg'); }
.final-cta::after {
  width: 100%;
  background-image: url('../img/12-fukuoka-skyline.jpg');
  opacity: .62;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 100%);
  mask-image: linear-gradient(180deg, #000 0%, #000 100%);
}
.final-cta { background: var(--bg-2); }
.final-cta .final-glow { z-index: 1; opacity: .54; }

.ai-search-section,
.measurement-section,
.story-section { background: var(--bg-2); }

.feature-demo::after {
  background: linear-gradient(135deg, rgba(4, 5, 13, .18), rgba(4, 5, 13, .36));
}
.calculator-demo,
.line-demo,
.ai-demo {
  filter: saturate(1.12) contrast(1.04);
}
.operation-image::after { background: linear-gradient(135deg, rgba(4, 5, 13, .02), rgba(4, 5, 13, .2)); }
.reward-card {
  background-image:
    linear-gradient(115deg, rgba(12, 16, 36, .65), rgba(34, 19, 71, .46) 68%, rgba(61, 17, 64, .5)),
    url('../img/09-ranking-video-reward.jpg');
  filter: saturate(1.12) contrast(1.05);
}
.reward-content, .reward-mark, .reward-badge { filter: none; }
.section-heading h2,
.problem-section h2,
.ai-intro h2,
.operation-grid h2,
.story-copy h2,
.final-cta h2,
.feature-content h3,
.measurement-copy h3 { text-shadow: 0 2px 18px rgba(0, 0, 0, .72); }
.section-heading > p:last-child,
.split-heading > p,
.ai-intro > p,
.operation-grid > div:first-child p,
.story-body { text-shadow: 0 1px 12px rgba(0, 0, 0, .72); }

@media (max-width: 640px) {
  .problem-section::after,
  .about-section::after,
  .role-section::after,
  .plan-section::after,
  .flow-section::after,
  .faq-section::after,
  .ai-search-section::after,
  .measurement-section::after,
  .story-section::after { width: 100%; opacity: .22; }
  .final-cta::after { opacity: .46; }
}