:root {
  --ink-950: #12100e;
  --ink-900: #171412;
  --ink-800: #211d19;
  --ink-700: #2c2722;
  --paper: #f2efe9;
  --paper-dim: #e7e2d9;
  --paper-light: #faf8f4;
  --text-hi: #ece7de;
  --text-mid: #b5aca0;
  --text-low: #857c70;
  --text-ink: #262220;
  --text-ink-mid: #5b544e;
  --brass: #c0a468;
  --brass-soft: #a58c58;
  --brass-pale: #d7c08d;
  --line: rgba(236, 231, 222, 0.14);
  --line-strong: rgba(236, 231, 222, 0.28);
  --line-ink: rgba(38, 34, 32, 0.14);
  --font-en: 'Marcellus', serif;
  --font-min: 'Shippori Mincho', serif;
  --font-sans: 'Noto Sans JP', sans-serif;
  --pad-x: clamp(22px, 5.3vw, 102px);
  --section-y: clamp(86px, 9vw, 156px);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--text-ink); font-family: var(--font-sans); font-weight: 300; line-height: 1.9; -webkit-font-smoothing: antialiased; }
body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
svg { fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.7; }
::selection { background: var(--brass); color: var(--ink-950); }
:focus-visible { outline: 2px solid var(--brass); outline-offset: 3px; }

.hero { position: relative; min-height: 820px; height: 100vh; max-height: 1020px; background: var(--ink-950); color: var(--text-hi); overflow: hidden; }
.hero-image { position: absolute; z-index: 0; inset: 0 0 0 34%; overflow: hidden; background: url('assets/battery-hero-daylight.webp') center/cover no-repeat; filter: saturate(.72) contrast(1.04); }
.hero-overlay { position: absolute; z-index: 1; inset: 0; background: linear-gradient(90deg, var(--ink-950) 0%, rgba(18,16,14,.97) 30%, rgba(18,16,14,.72) 58%, rgba(18,16,14,.3) 100%), linear-gradient(0deg, rgba(18,16,14,.75), transparent 50%); }
.hero-orbit { position: absolute; border: 1px solid rgba(192,164,104,.22); border-radius: 50%; pointer-events: none; }
.orbit-one { width: 620px; height: 620px; right: -270px; top: 90px; }
.orbit-two { width: 380px; height: 380px; right: -80px; top: 210px; }
.hero-inner { position: relative; z-index: 2; width: min(1380px, 100%); margin: 0 auto; padding: clamp(132px, 15vh, 185px) var(--pad-x) 230px; }
.breadcrumb { display: flex; align-items: center; gap: .9em; margin-bottom: clamp(60px, 9vh, 110px); color: var(--text-low); font-size: 11px; letter-spacing: .09em; }
.breadcrumb a:hover { color: var(--brass); }
.hero-label { margin: 0 0 22px; color: var(--text-mid); font-size: 14px; letter-spacing: .14em; }
.hero-label span { display: block; margin-bottom: 5px; color: var(--brass); font-family: var(--font-en); font-size: 21px; letter-spacing: .1em; }
.hero h1 { margin: 0; max-width: 980px; font-family: var(--font-min); font-size: clamp(40px, 4.5vw, 68px); font-weight: 500; letter-spacing: .025em; line-height: 1.5; }
.hero h1 em { color: var(--brass-pale); font-style: normal; }
.hero-catch { max-width: 720px; margin: 22px 0 0; color: var(--brass-pale); font-family: var(--font-min); font-size: clamp(18px, 1.8vw, 26px); line-height: 1.7; }
.hero-catch-segment { display: inline-block; white-space: nowrap; }
.hero-lead { max-width: 650px; margin: 30px 0 0; color: var(--text-mid); font-size: clamp(14px, 1.25vw, 17px); line-height: 2.1; }
.hero-lead p { margin: 0; }
.hero-lead p + p { margin-top: 8px; }
.hero-cta { display: inline-flex; align-items: center; gap: 34px; margin-top: 40px; padding: 13px 0; color: var(--text-hi); border-bottom: 1px solid var(--brass); font-size: 13px; letter-spacing: .1em; }
.hero-cta i { display: grid; place-items: center; width: 31px; height: 31px; border: 1px solid var(--line-strong); border-radius: 50%; color: var(--brass); font-style: normal; }
.hero-facts { position: absolute; z-index: 3; right: var(--pad-x); bottom: 0; width: min(810px, 58%); display: grid; grid-template-columns: repeat(3, 1fr); background: rgba(23,20,18,.9); -webkit-backdrop-filter: blur(9px); backdrop-filter: blur(9px); border: 1px solid var(--line); }
.hero-facts > div { min-height: 144px; padding: 26px 30px; display: flex; align-items: flex-start; gap: 20px; border-right: 1px solid var(--line); }
.hero-facts > div:last-child { border-right: 0; }
.fact-index { color: var(--brass); font-family: var(--font-en); font-size: 13px; }
.hero-facts p { margin: 0; font-family: var(--font-min); font-size: clamp(15px, 1.25vw, 19px); line-height: 1.7; }

/* 現行phenix下層ページと同じ、写真を動かさない右→左マスクワイプ */
.visual-wipe::after {
  content: '';
  position: absolute;
  z-index: 2;
  inset: 0;
  background: var(--ink-900);
  transform: scaleX(1);
  transform-origin: right;
  transition: transform 1.1s var(--ease-reveal);
}
.visual-wipe.is-visible::after { transform: scaleX(0); }
.hero .breadcrumb { transition-delay: .05s; }
.hero .hero-label { transition-delay: .14s; }
.hero h1 { transition-delay: .22s; }
.hero .hero-catch { transition-delay: .31s; }
.hero .hero-lead { transition-delay: .39s; }
.hero .hero-cta { transition-delay: .55s; }
.hero-facts > .reveal:nth-child(1) { transition-delay: .28s; }
.hero-facts > .reveal:nth-child(2) { transition-delay: .38s; }
.hero-facts > .reveal:nth-child(3) { transition-delay: .48s; }
.energy-flow > .reveal:nth-of-type(1),
.revenue-grid > .reveal:nth-child(1),
.number-grid > .reveal:nth-child(1),
.strength-grid > .reveal:nth-child(1),
.proposal-flow > .reveal:nth-child(1) { transition-delay: .04s; }
.energy-flow > .reveal:nth-of-type(2),
.revenue-grid > .reveal:nth-child(2),
.number-grid > .reveal:nth-child(2),
.strength-grid > .reveal:nth-child(2),
.proposal-flow > .reveal:nth-child(2) { transition-delay: .12s; }
.energy-flow > .reveal:nth-of-type(3),
.revenue-grid > .reveal:nth-child(3),
.number-grid > .reveal:nth-child(3),
.strength-grid > .reveal:nth-child(3),
.proposal-flow > .reveal:nth-child(3) { transition-delay: .2s; }
.number-grid > .reveal:nth-child(4),
.strength-grid > .reveal:nth-child(4),
.proposal-flow > .reveal:nth-child(4) { transition-delay: .28s; }
.strength-grid > .reveal:nth-child(5) { transition-delay: .36s; }
.strength-grid > .reveal:nth-child(6) { transition-delay: .44s; }

.section { padding: var(--section-y) var(--pad-x); }
.section-shell { width: min(1280px, 100%); margin: 0 auto; }
.section-heading { margin-bottom: clamp(50px, 6vw, 82px); }
.section-en { margin: 0 0 12px; color: var(--brass-soft); font-family: var(--font-en); font-size: 14px; letter-spacing: .14em; }
.section-heading h2 { margin: 0; font-family: var(--font-min); font-size: clamp(31px, 3.25vw, 50px); font-weight: 500; letter-spacing: .025em; line-height: 1.5; }
.section-heading h2 span { color: var(--text-ink-mid); font-size: .65em; }
.section-lead { margin: 24px 0 0; color: var(--text-ink-mid); font-size: 15px; line-height: 2.05; }
.section-about .section-heading h2 { white-space: nowrap; font-size: clamp(23px, 2.85vw, 44px); }
.about-heading { max-width: 1040px; }
.about-copy { display: grid; gap: 18px; max-width: 960px; margin-top: 28px; }
.about-summary, .about-audience { margin: 0; color: var(--text-ink-mid); }
.about-summary { font-size: 15px; line-height: 2; }
.about-summary strong { color: var(--text-ink); font-family: var(--font-min); font-size: 1em; font-weight: 500; }
.about-audience { font-size: 13px; line-height: 2; }
.strength-heading { max-width: 900px; }
.section-heading h2 .no-break { color: inherit; font-size: inherit; white-space: nowrap; }
.centered { text-align: center; }
.centered .section-lead { max-width: 720px; margin-left: auto; margin-right: auto; }
.on-dark { color: var(--text-hi); }
.on-dark .section-lead { color: var(--text-mid); }

.section-about { background: var(--paper); }
.energy-flow { display: grid; grid-template-columns: 1fr 56px 1fr 56px 1fr; align-items: center; }
.energy-step { min-height: 370px; padding: clamp(28px, 3vw, 46px); border: 1px solid var(--line-ink); background: var(--paper-light); }
.energy-step.is-accent { background: var(--ink-800); color: var(--text-hi); border-color: var(--ink-800); transform: translateY(-18px); }
.step-top { display: flex; align-items: flex-start; justify-content: space-between; }
.step-num { color: var(--brass-soft); font-family: var(--font-en); font-size: 14px; }
.step-icon { width: 76px; height: 76px; display: grid; place-items: center; border: 1px solid var(--line-ink); border-radius: 50%; color: var(--brass-soft); }
.is-accent .step-icon { background: var(--brass); border-color: var(--brass); color: var(--ink-950); }
.step-icon svg { width: 42px; height: 42px; }
.energy-step h3 { margin: 46px 0 15px; font-family: var(--font-min); font-size: 29px; font-weight: 500; }
.energy-step p { margin: 0; color: var(--text-ink-mid); font-size: 14px; }
.energy-step.is-accent p { color: var(--text-mid); }
.flow-arrow { color: var(--brass-soft); font-family: var(--font-en); font-size: 24px; text-align: center; }
.market-note { margin-top: clamp(50px, 6vw, 82px); display: grid; grid-template-columns: 100px 1fr; gap: 36px; align-items: center; padding: clamp(31px, 4vw, 52px); background: var(--paper-dim); }
.market-mark { width: 76px; height: 76px; display: grid; place-items: center; color: var(--brass-soft); border-right: 1px solid var(--line-ink); }
.market-mark svg { width: 44px; height: 44px; }
.market-note h3 { margin: 0 0 12px; font-family: var(--font-min); font-size: clamp(22px, 2.1vw, 30px); font-weight: 500; }
.market-note p { margin: 0; color: var(--text-ink-mid); font-size: 14px; }

.section-model { position: relative; background: var(--ink-900); color: var(--text-hi); overflow: hidden; }
.section-model::before { content: ''; position: absolute; inset: 0; background: radial-gradient(circle at 80% 32%, rgba(192,164,104,.1), transparent 26%), linear-gradient(rgba(236,231,222,.025) 1px, transparent 1px), linear-gradient(90deg, rgba(236,231,222,.025) 1px, transparent 1px); background-size: auto, 80px 80px, 80px 80px; }
.model-image { position: absolute; right: 0; top: 0; width: 38%; height: 460px; overflow: hidden; }
.model-image::before { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, var(--ink-900), transparent 55%), linear-gradient(0deg, var(--ink-900), transparent 55%), url('assets/battery-grid-infrastructure.webp') center/cover no-repeat; opacity: .52; }
.model-shell { position: relative; z-index: 1; }
.section-model .section-heading { max-width: 760px; }
@media (min-width: 768px) {
  .section-model .section-heading { max-width: min(760px, calc(62vw - max(var(--pad-x), (100vw - 1280px) / 2) - 48px)); }
}
.revenue-grid { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); }
.revenue-grid article { min-height: 360px; padding: clamp(30px, 3.5vw, 52px); border-right: 1px solid var(--line); background: rgba(31,27,24,.58); }
.revenue-grid article:last-child { border-right: 0; }
.revenue-num { color: var(--brass); font-family: var(--font-en); font-size: 14px; }
.revenue-grid h3 { margin: 38px 0 22px; font-family: var(--font-min); font-size: clamp(21px, 2vw, 28px); font-weight: 500; line-height: 1.65; }
.revenue-grid p { margin: 0; color: var(--text-mid); font-size: 14px; }
.return-flow { margin-top: clamp(70px, 8vw, 118px); }
.return-title { margin: 0 0 42px; font-family: var(--font-min); font-size: 25px; }
.return-track { display: grid; grid-template-columns: repeat(3, 1fr); position: relative; }
.return-track::before { content: ''; position: absolute; left: 10%; right: 10%; top: 48px; height: 1px; background: var(--line-strong); }
.return-track > div { position: relative; text-align: center; }
.return-track span { display: block; margin-bottom: 19px; font-family: var(--font-min); font-size: 18px; }
.return-track i { position: relative; z-index: 1; display: block; width: 15px; height: 15px; margin: 0 auto 22px; border: 4px solid var(--ink-900); border-radius: 50%; background: var(--brass); box-sizing: content-box; }
.return-track p { margin: 0; color: var(--text-mid); font-size: 13px; }
.small-note { margin: 30px 0 0; color: var(--text-low); font-size: 11px; line-height: 1.7; }
.section-investment .small-note,
.section-strength .small-note { color: var(--text-ink-mid); }

.section-investment { background: var(--paper-dim); }
.number-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--text-ink); border-bottom: 1px solid var(--line-ink); }
.number-grid article { padding: 44px 30px; text-align: center; border-right: 1px solid var(--line-ink); }
.number-grid article:last-child { border-right: 0; }
.number-grid article > span { color: var(--brass-soft); font-family: var(--font-en); font-size: 12px; letter-spacing: .12em; }
.number-grid strong { display: block; margin: 8px 0 3px; color: var(--text-ink); font-family: var(--font-en); font-size: clamp(38px, 4vw, 60px); font-weight: 400; line-height: 1.2; }
.number-grid strong small { margin-left: 3px; font-family: var(--font-min); font-size: .4em; font-weight: 500; }
.number-grid p { margin: 0; color: var(--text-ink-mid); font-size: 12px; }
.investment-table-wrap { margin-top: 70px; }
.table-title { margin: 0 0 20px; font-family: var(--font-min); font-size: 23px; }
.investment-table { width: 100%; border-collapse: collapse; background: var(--paper-light); }
.investment-table th, .investment-table td { padding: 23px 28px; text-align: left; border-bottom: 1px solid var(--line-ink); }
.investment-table th { background: var(--ink-800); color: var(--text-hi); font-size: 12px; font-weight: 400; letter-spacing: .06em; }
.investment-table td { font-size: 15px; }

.section-strength { background: var(--paper-light); }
.strength-layout { display: grid; grid-template-columns: minmax(320px, .72fr) minmax(640px, 1.3fr); gap: 0; }
.strength-photo { margin: 0; min-height: 650px; overflow: hidden; }
.strength-photo img { width: 100%; height: 100%; object-fit: cover; object-position: 58% center; filter: saturate(.7); }
.js-anim .section-strength .strength-photo.reveal-img::after { background: var(--paper-light); }
.strength-grid { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line-ink); border-left: 1px solid var(--line-ink); }
.strength-grid article { min-height: 214px; padding: 28px 34px; border-right: 1px solid var(--line-ink); border-bottom: 1px solid var(--line-ink); }
.strength-grid article > span { color: var(--brass-soft); font-family: var(--font-en); font-size: 12px; }
.strength-grid h3 { margin: 13px 0 10px; font-family: var(--font-min); font-size: clamp(18px, 1.65vw, 24px); font-weight: 500; line-height: 1.55; }
.strength-grid p { margin: 0; color: var(--text-ink-mid); font-size: 12px; line-height: 1.8; }
.strength-grid small { color: var(--text-low); }
.strength-note { text-align: right; }

.contact-section { position: relative; padding: var(--section-y) var(--pad-x); background: var(--ink-950); color: var(--text-hi); overflow: hidden; }
.contact-grid-pattern { position: absolute; inset: 0; opacity: .35; background: linear-gradient(rgba(236,231,222,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(236,231,222,.035) 1px, transparent 1px); background-size: 72px 72px; }
.contact-section .section-shell { position: relative; z-index: 1; }
.proposal-flow { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); }
.proposal-flow li { position: relative; min-height: 220px; padding: 30px; border-right: 1px solid var(--line); }
.proposal-flow li:last-child { border-right: 0; }
.proposal-flow li:not(:last-child)::after { content: '›'; position: absolute; z-index: 2; right: -12px; top: 50%; transform: translateY(-50%); color: var(--brass); font-family: var(--font-en); font-size: 24px; }
.proposal-flow li > span { color: var(--brass); font-family: var(--font-en); font-size: 13px; }
.proposal-flow h3 { margin: 42px 0 12px; font-family: var(--font-min); font-size: 21px; font-weight: 500; }
.proposal-flow p { margin: 0; color: var(--text-mid); font-size: 12px; line-height: 1.8; }
.contact-panel { margin-top: 72px; display: grid; grid-template-columns: minmax(390px, 1.15fr) minmax(250px, .85fr) minmax(220px, 245px); gap: clamp(28px, 3vw, 44px); align-items: center; padding: clamp(35px, 4.5vw, 64px); background: var(--paper); color: var(--text-ink); }
.contact-en { margin: 0 0 12px !important; color: var(--brass-soft) !important; font-family: var(--font-en); font-size: 13px !important; letter-spacing: .12em; }
.contact-panel h2 { margin: 0 0 16px; font-family: var(--font-min); font-size: clamp(28px, 3vw, 43px); font-weight: 500; line-height: 1.5; }
.contact-panel p { margin: 0; color: var(--text-ink-mid); font-size: 13px; }
.contact-details { min-width: 0; border-left: 1px solid var(--line-ink); padding-left: 40px; }
.contact-details p { display: block; margin: 9px 0; line-height: 1.8; }
.contact-details a { overflow-wrap: anywhere; }
.contact-button { min-width: 245px; padding: 20px 24px; display: flex; justify-content: space-between; align-items: center; background: var(--brass); border: 1px solid var(--brass); color: var(--ink-950); font-size: 13px; letter-spacing: .06em; transition: .25s ease; }
.contact-button:hover { background: transparent; color: var(--brass-soft); }

.hero-cta i { transition: transform .4s var(--ease-out), background .4s ease, color .4s ease; }
.hero-cta:hover i,
.hero-cta:focus-visible i { transform: translateY(6px); background: var(--brass); color: var(--ink-950); }

/* 2026-09-07 Figma指示：PC版の文字組みと視認性を調整 */
@media (min-width: 901px) {
  .fact-index { font-size: 15px; }
  .hero-facts > div { min-height: 120px; padding: 18px 16px; gap: 12px; }
  .hero-facts p { font-size: clamp(20px, 1.55vw, 24px); font-weight: 600; line-height: 1.6; }

  .about-copy { gap: 22px; margin-top: 34px; }
  .about-summary { font-size: 17px; }
  .about-summary strong { font-size: clamp(22px, 2vw, 28px); line-height: 1.7; }
  /* 2026-09-08 Figma指示「小さすぎる」に対し、17px・細字・灰色では差が出ないため本文級の読みやすさへ引き上げ。balanceで1〜2文字の孤立を防ぐ */
  .about-audience { max-width: 960px; font-size: 19px; font-weight: 400; line-height: 1.9; color: var(--text-ink); text-wrap: balance; }

  .step-num { font-size: 22px; font-weight: 600; letter-spacing: .06em; }
  .energy-flow > .energy-step:first-of-type p { font-size: 16px; font-weight: 400; line-height: 1.95; }
  /* 2026-09-08 「放電」の強調：文字は31px・明朝のまま、枠線・番号・アイコン・マーカーで目立たせる（蓄電の濃色カードは維持） */
  .energy-step.is-key { border-color: var(--brass); box-shadow: inset 0 0 0 1px var(--brass); }
  .energy-step.is-key .step-num { color: var(--brass); }
  .energy-step.is-key .step-icon { background: var(--brass); border-color: var(--brass); color: var(--ink-950); }
  .energy-step.is-key h3 { font-size: 31px; font-weight: 600; letter-spacing: .04em; }
  .energy-step.is-key h3 span { padding: 0 .08em; background: linear-gradient(transparent 64%, rgba(192, 164, 104, .55) 64%); }
  .energy-step.is-key p { color: var(--text-ink); }

  /* 2026-09-08 Figma指示は「卸電力市場での売買差益」とその説明文、番号のみ。02・03の見出し・説明文は8月30日版のまま、01だけ+2pxと装飾で目立たせる */
  .revenue-num { font-size: 22px; font-weight: 600; letter-spacing: .06em; } /* 「数字はもっと目立つように」: 充電・蓄電・放電の番号と同じ処理 */
  .revenue-grid article.is-key { box-shadow: inset 0 0 0 1px var(--brass); background: rgba(192, 164, 104, .08); }
  .revenue-grid article.is-key h3 { font-size: calc(clamp(21px, 2vw, 28px) + 2px); font-weight: 600; }
  .revenue-grid article.is-key h3 span { padding: 0 .06em; background: linear-gradient(transparent 64%, rgba(192, 164, 104, .5) 64%); }
  .revenue-grid article.is-key p { font-size: 16px; color: var(--text-hi); }

  /* 2026-09-08 「運転開始」の強調：文字を大きくしても点の位置が揃うよう行高を固定し、色・太さ・リングで目立たせる */
  .return-track span { line-height: 34px; }
  .return-track > div:first-child > span { font-size: 22px; font-weight: 600; letter-spacing: .04em; color: var(--brass-pale); }
  .return-track > div:first-child > i { box-shadow: 0 0 0 4px rgba(192, 164, 104, .3); }
  .return-track > div:first-child > p { font-size: 15px; color: var(--text-hi); }

  .number-grid strong { font-family: var(--font-sans); font-weight: 400; letter-spacing: -.03em; }
  .number-grid p { font-size: 14px; }

  /* 2026-09-08 Figma指示は「2026年度 連系予定案件あり」と「年内の連系が可能な案件を複数取り揃え」のみ。02〜06と番号は8月30日版の大きさのまま、01だけ+2pxと装飾で目立たせる */
  .strength-grid article.is-key { box-shadow: inset 0 0 0 1px var(--brass); background: var(--paper); }
  .strength-grid article.is-key > span { color: var(--brass); }
  .strength-grid article.is-key h3 { font-size: clamp(20px, 1.75vw, 26px); font-weight: 600; }
  .strength-grid article.is-key h3 span { padding: 0 .06em; background: linear-gradient(transparent 64%, rgba(192, 164, 104, .55) 64%); }
  .strength-grid article.is-key p { font-size: 14px; font-weight: 400; color: var(--text-ink); }

  /* 2026-09-08 Figma指示は「お問い合わせ」とその説明文、番号のみ。02〜04の見出し・説明文は8月30日版のまま、01だけ+2pxと装飾で目立たせる */
  .proposal-flow li > span { font-size: 22px; font-weight: 600; letter-spacing: .06em; } /* 「数字はもっと目立つように」: 充電・蓄電・放電の番号と同じ処理 */
  .proposal-flow li.is-key { box-shadow: inset 0 0 0 1px var(--brass); background: rgba(192, 164, 104, .08); }
  .proposal-flow li.is-key h3 { font-size: 23px; font-weight: 600; }
  .proposal-flow li.is-key h3 span { padding: 0 .06em; background: linear-gradient(transparent 64%, rgba(192, 164, 104, .5) 64%); }
  .proposal-flow li.is-key p { font-size: 14px; color: var(--text-hi); }
}

@media (max-width: 1050px) {
  .hero-facts { width: 68%; }
  .strength-layout { grid-template-columns: .75fr 1.25fr; }
  .contact-panel { grid-template-columns: minmax(0, 1.15fr) minmax(250px, .85fr); gap: 36px; }
  .contact-button { grid-column: 1 / -1; width: 100%; }
}

@media (min-width: 768px) and (max-width: 900px) {
  .energy-flow { max-width: 620px; margin-inline: auto; grid-template-columns: 1fr; }
  .energy-step { min-height: 0; }
  .energy-step.is-accent { transform: none; }
  .flow-arrow { padding: 8px; transform: rotate(90deg); }

  .revenue-grid { grid-template-columns: 1fr; }
  .revenue-grid article { min-height: 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .revenue-grid article:last-child { border-bottom: 0; }

  .number-grid { grid-template-columns: repeat(2, 1fr); }
  .number-grid article:nth-child(2) { border-right: 0; }
  .number-grid article:nth-child(-n+2) { border-bottom: 1px solid var(--line-ink); }

  .strength-layout { grid-template-columns: 1fr; }
  .strength-photo { min-height: 420px; }

  .proposal-flow { grid-template-columns: repeat(2, 1fr); }
  .proposal-flow li:nth-child(2) { border-right: 0; }
  .proposal-flow li:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .proposal-flow li:nth-child(2)::after { content: '↓'; right: auto; left: 50%; top: auto; bottom: -14px; transform: translateX(-50%); }

  .contact-panel { grid-template-columns: 1fr; }
  .contact-details { padding: 25px 0 0; border-left: 0; border-top: 1px solid var(--line-ink); }
  .contact-button { grid-column: auto; }
}

@media (max-width: 767px) {
  :root { --pad-x: 20px; --section-y: 80px; }
  .hero { height: auto; min-height: 0; max-height: none; padding-bottom: 0; }
  .hero-image { inset: 68px 0 auto 0; height: 42vh; min-height: 310px; background-position: 54% center; }
  .hero-overlay { background: linear-gradient(0deg, var(--ink-950) 34%, rgba(18,16,14,.34) 72%, rgba(18,16,14,.48) 100%); }
  .hero-orbit { display: none; }
  .hero-inner { padding: 100px var(--pad-x) 48px; }
  .breadcrumb { margin: 0 0 34vh; gap: .6em; font-size: 9px; white-space: nowrap; overflow: hidden; }
  .hero-label { font-size: 11px; }
  .hero-label span { font-size: 16px; }
  .hero h1 { font-size: 34px; line-height: 1.55; }
  .hero-catch { margin-top: 16px; font-size: 17px; }
  .hero-lead { margin-top: 20px; font-size: 13px; line-height: 1.9; }
  .hero-cta { margin-top: 25px; }
  .hero-facts { position: relative; right: auto; width: 100%; grid-template-columns: 1fr; border-left: 0; border-right: 0; }
  .hero-facts > div { min-height: 0; padding: 20px var(--pad-x); align-items: center; border-right: 0; border-bottom: 1px solid var(--line); }
  .hero-facts > div:last-child { border-bottom: 0; }
  .hero-facts p { font-size: 15px; }

  .section-heading { margin-bottom: 45px; }
  .section-en { font-size: 11px; }
  .section-heading h2 { font-size: 30px; }
  .section-lead { font-size: 13px; }
  .energy-flow { grid-template-columns: 1fr; gap: 0; }
  .energy-step { min-height: 0; padding: 30px 25px; }
  .energy-step.is-accent { transform: none; }
  .energy-step h3 { margin-top: 26px; font-size: 24px; }
  .step-icon { width: 60px; height: 60px; }
  .step-icon svg { width: 34px; height: 34px; }
  .flow-arrow { padding: 6px; transform: rotate(90deg); }
  .market-note { grid-template-columns: 1fr; gap: 18px; padding: 28px 24px; }
  .market-mark { width: 55px; height: 55px; border-right: 0; }
  .market-note h3 { font-size: 21px; }

  .model-image { width: 65%; height: 250px; opacity: .25; }
  .revenue-grid { grid-template-columns: 1fr; }
  .revenue-grid article { min-height: 0; padding: 30px 25px; border-right: 0; border-bottom: 1px solid var(--line); }
  .revenue-grid article:last-child { border-bottom: 0; }
  .revenue-grid h3 { margin: 22px 0 13px; font-size: 22px; }
  .return-track { grid-template-columns: 1fr; gap: 0; }
  .return-track::before { left: 11px; right: auto; top: 12px; bottom: 50px; width: 1px; height: auto; }
  .return-track > div { display: grid; grid-template-columns: 24px 1fr; text-align: left; padding-bottom: 28px; }
  .return-track span { grid-column: 2; margin: 0 0 4px; }
  .return-track i { grid-column: 1; grid-row: 1 / 3; margin: 4px 0 0; width: 13px; height: 13px; }
  .return-track p { grid-column: 2; }

  .number-grid { grid-template-columns: repeat(2, 1fr); }
  .number-grid article { padding: 27px 10px; }
  .number-grid article:nth-child(2) { border-right: 0; }
  .number-grid article:nth-child(-n+2) { border-bottom: 1px solid var(--line-ink); }
  .number-grid strong { font-size: 37px; }
  .section-model .section-heading h2 { font-size: 28px; }
  .investment-table-wrap { overflow: visible; margin-top: 48px; }
  .investment-table { min-width: 0; }
  .investment-table thead { display: none; }
  .investment-table, .investment-table tbody, .investment-table tr, .investment-table td { display: block; width: 100%; }
  .investment-table tr { border-top: 3px solid var(--ink-800); }
  .investment-table td { display: grid; grid-template-columns: minmax(125px, 45%) 1fr; gap: 15px; padding: 15px 18px; font-size: 13px; }
  .investment-table td::before { content: attr(data-label); color: var(--brass-soft); font-size: 10px; letter-spacing: .05em; }

  .strength-layout { grid-template-columns: 1fr; }
  .strength-photo { min-height: 310px; }
  .strength-grid { grid-template-columns: 1fr; }
  .strength-grid article { min-height: 0; padding: 25px; }
  .strength-note { text-align: left; }

  .proposal-flow { grid-template-columns: 1fr; }
  .proposal-flow li { min-height: 0; padding: 25px; display: grid; grid-template-columns: 45px 1fr; gap: 10px; border-right: 0; border-bottom: 1px solid var(--line); }
  .proposal-flow li:last-child { border-bottom: 0; }
  .proposal-flow li:not(:last-child)::after { content: '↓'; right: auto; left: 24px; top: auto; bottom: -14px; transform: none; }
  .proposal-flow h3 { margin: 0 0 8px; }
  .contact-panel { margin-top: 50px; grid-template-columns: 1fr; gap: 30px; padding: 28px 24px; }
  .contact-panel h2 { font-size: clamp(22px, 6.7vw, 26px); }
  .contact-details { padding: 25px 0 0; border-left: 0; border-top: 1px solid var(--line-ink); }
  .contact-button { grid-column: auto; min-width: 0; }

}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  body:not(.force-motion) *,
  body:not(.force-motion) *::before,
  body:not(.force-motion) *::after { transition-duration: .01ms !important; }
  body:not(.force-motion) .visual-wipe::after { display: none; }
}

@media (max-width: 359px) {
  .contact-panel { padding-left: 18px; padding-right: 18px; }
  .contact-panel h2 { font-size: 21px; }
}