/* LP専用スタイル — 白ベース・美術館図録トーン */

:root {
    --white: #ffffff;
    --off-white: #f8f7f4;
    --light-gray: #edece9;
    --border: #dedbd6;
    --text-sub: #7a7975;
    --text-body: #4a4845;
    --text-main: #1c1c1a;
    --black: #1c1c1a;
    --accent: #1c1c1a;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; font-size: 19px; background: #c4c2be; }

body {
    background: var(--white);
    font-family: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
    color: var(--text-main);
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
}

/* 明朝フォント — 見出し系 */
.lp-hero-title,
.lp-statement-text,
.sec-heading,
.lp-intro-lead,
.lp-cta-heading,
.challenge-label,
.flow-step-label,
.faq-q {
    font-family: 'Shippori Mincho B1', 'Hiragino Mincho ProN', 'Yu Mincho', serif;
}

img { -webkit-user-drag: none; user-select: none; display: block; }

/* ── フェードイン ─── */
.fi {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}
.fi.on { opacity: 1; transform: translateY(0); }
.fi-delay-1 { transition-delay: 0.1s; }
.fi-delay-2 { transition-delay: 0.22s; }
.fi-delay-3 { transition-delay: 0.34s; }

/* ══════════════════════════════════
   ヘッダー
══════════════════════════════════ */
.lp-header {
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    z-index: 200;
    padding: 0 48px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.lp-header.scrolled {
    background: rgba(255,255,255,0.94);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}
.lp-logo {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    color: var(--white);
    text-decoration: none;
    transition: color 0.3s;
}
.lp-header.scrolled .lp-logo { color: var(--black); }

.lp-header-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 28px;
    border-radius: 100px;
    border: 1px solid rgba(255,255,255,0.5);
    color: rgba(255,255,255,0.9);
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-decoration: none;
    transition: border-color 0.25s, color 0.25s, background 0.25s;
}
.lp-header.scrolled .lp-header-cta {
    border-color: var(--border);
    color: var(--text-body);
}
.lp-header-cta:hover {
    background: rgba(255,255,255,0.15);
    border-color: rgba(255,255,255,0.8);
}
.lp-header.scrolled .lp-header-cta:hover {
    background: var(--black);
    color: var(--white);
    border-color: var(--black);
}

/* ══════════════════════════════════
   HERO — 明るめ・写真主体
══════════════════════════════════ */
.lp-hero {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
    background: #c4c2be;
    display: flex;
    align-items: flex-end;
}
.lp-hero-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: 65% 35%;
}
.lp-hero-grad {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to top,
        rgba(20,18,14,0.52) 0%,
        rgba(20,18,14,0.28) 35%,
        rgba(20,18,14,0.0) 70%
    );
}
.lp-hero-content {
    position: relative;
    z-index: 1;
    padding: 0 64px 80px;
    width: 100%;
}
.lp-hero-label {
    font-size: 0.62rem;
    letter-spacing: 0.25em;
    color: var(--text-sub);
    margin-bottom: 18px;
    display: block;
    text-transform: uppercase;
}
.lp-hero-title {
    font-size: clamp(2.2rem, 4.5vw, 3.6rem);
    font-weight: 400;
    line-height: 1.5;
    color: var(--white);
    letter-spacing: 0.01em;
    margin-bottom: 24px;
}
.lp-hero-title strong { font-weight: 600; display: block; }
.lp-hero-sub {
    font-size: 1rem;
    color: rgba(255,255,255,0.82);
    line-height: 2;
    white-space: nowrap;
}
.lp-hero-scroll {
    position: absolute;
    bottom: 40px; right: 52px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    color: rgba(255,255,255,0.7);
}
.scroll-label {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    letter-spacing: 0.18em;
    font-size: 0.65rem;
}
.scroll-arrow-icon {
    color: rgba(255,255,255,0.7);
    animation: scrollBounce 2s ease-in-out infinite;
}
@keyframes scrollBounce {
    0%, 100% { transform: translateY(0); opacity: 0.7; }
    50% { transform: translateY(6px); opacity: 1; }
}

/* ══════════════════════════════════
   STATEMENT — オフホワイト背景×大文字
══════════════════════════════════ */
.lp-statement {
    background: #e4dbd0;
    padding: 100px 64px;
    text-align: center;
}
.lp-statement-text {
    font-size: clamp(1.6rem, 3.5vw, 2.8rem);
    font-weight: 400;
    color: var(--black);
    line-height: 1.8;
    letter-spacing: 0.04em;
}
.lp-statement-text strong { font-weight: 600; }
.lp-statement-sub {
    margin-top: 36px;
    font-size: 1.05rem;
    color: var(--text-body);
    line-height: 2;
}

/* ══════════════════════════════════
   セクション共通
══════════════════════════════════ */
.lp-sec { padding: 100px 64px; }
.lp-inner { max-width: 760px; margin: 0 auto; }
.lp-inner-wide { max-width: 1080px; margin: 0 auto; }

.lp-eyebrow {
    font-size: 0.78rem;
    letter-spacing: 0.18em;
    color: var(--text-sub);
    text-transform: uppercase;
    display: block;
    margin-bottom: 20px;
}
.sec-heading {
    font-size: clamp(1.4rem, 2.8vw, 2rem);
    font-weight: 400;
    line-height: 1.7;
    letter-spacing: 0.02em;
    color: var(--black);
    margin-bottom: 40px;
}
.sec-heading strong { font-weight: 600; }
.sec-body, .sec-body p {
    font-size: 1.1rem;
    color: var(--text-body);
    line-height: 2.1;
}
.sec-body p + p { margin-top: 0.6em; }

/* ══════════════════════════════════
   INTRO
══════════════════════════════════ */
.lp-intro-lead {
    font-size: clamp(1.05rem, 1.8vw, 1.35rem);
    font-weight: 400;
    line-height: 1.9;
    color: var(--text-main);
    border-left: 2px solid var(--border);
    padding-left: 24px;
    margin-bottom: 40px;
}

/* ══════════════════════════════════
   INTRO — 2カラム
══════════════════════════════════ */
.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}
@media (max-width: 900px) {
    .intro-grid { grid-template-columns: 1fr; gap: 40px; }
}

.tech-note {
    margin-top: 40px;
    font-size: 0.8rem;
    color: var(--text-sub);
    padding-left: 16px;
    border-left: 1px solid var(--border);
    line-height: 1.8;
}

/* ══════════════════════════════════
   CHALLENGE — 3カード（明るめ）
══════════════════════════════════ */
.challenge-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    margin-top: 56px;
}
.challenge-card {
    background: var(--white);
    padding: 40px 32px;
}
.challenge-num {
    font-size: 2.4rem;
    font-weight: 700;
    color: #c0bdb9;
    line-height: 1;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}
.challenge-label {
    font-size: 1rem;
    font-weight: 500;
    color: var(--black);
    margin-bottom: 14px;
    line-height: 1.6;
}
.challenge-desc {
    font-size: 0.95rem;
    color: var(--text-body);
    line-height: 1.9;
}

/* ══════════════════════════════════
   TECH — 50/50スプリット
══════════════════════════════════ */
.lp-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 540px;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.lp-split-img {
    overflow: hidden;
    background: var(--light-gray);
}
.lp-split-img img {
    width: 100%; height: 100%;
    object-fit: cover;
}
.lp-split-body {
    background: var(--off-white);
    padding: 80px 64px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* ══════════════════════════════════
   商品ショーケース — オフホワイト背景
══════════════════════════════════ */
.lp-products {
    background: #f5f0eb;
    padding: 40px 64px 100px;
}
.lp-sec + .lp-products {
    padding-top: 0;
}
.lp-sec-pb-sm {
    padding-bottom: 40px !important;
}
.lp-products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 56px;
}
.lp-product-item {
    position: relative;
    overflow: hidden;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 8px;
    aspect-ratio: 3/4;
}
.lp-product-item img {
    width: 100%; height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.5s ease;
}
.lp-product-item:hover img { transform: scale(1.03); }
.lp-product-tag {
    display: block;
    font-size: 0.7rem;
    color: var(--text-sub);
    margin-top: 2px;
    letter-spacing: 0.08em;
}
.lp-product-caption {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    padding: 16px 20px;
    background: rgba(255,255,255,0.9);
    color: var(--text-body);
    font-size: 0.88rem;
    letter-spacing: 0.06em;
    border-top: 1px solid var(--border);
}

/* ══════════════════════════════════
   IMPLEMENTATION — 大番号リスト
══════════════════════════════════ */
.impl-open {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 80px;
    margin-top: 64px;
}
.impl-open-item {
    padding: 28px 0;
    border-top: 1px solid var(--border);
    font-size: 1rem;
    font-weight: 500;
    color: var(--black);
    line-height: 1.6;
}
@media (max-width: 900px) {
    .impl-open { grid-template-columns: 1fr; gap: 0; }
}

/* ══════════════════════════════════
   FLEXIBILITY — キーワードリスト
══════════════════════════════════ */
.kw-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    margin-top: 56px;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.kw-item {
    padding: 36px 40px;
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}
.kw-item:last-child {
    border-right: none;
}
.kw-title {
    font-family: 'Shippori Mincho B1', serif;
    font-size: 1.3rem;
    font-weight: 500;
    color: var(--black);
    margin-bottom: 8px;
    letter-spacing: 0.04em;
}
.kw-desc {
    font-size: 0.88rem;
    color: var(--text-sub);
    line-height: 1.6;
}
@media (max-width: 900px) {
    .kw-list { grid-template-columns: 1fr; }
    .kw-item:not(:last-child) { padding-right: 0; margin-right: 0; border-right: none; }
}


.flex-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    margin-top: 64px;
}
.flex-stat {
    padding: 48px 32px;
    text-align: center;
    border-right: 1px solid var(--border);
}
.flex-stat:last-child { border-right: none; }
.flex-stat-num {
    font-family: 'Shippori Mincho B1', serif;
    font-size: 3rem;
    font-weight: 600;
    color: var(--black);
    line-height: 1;
    margin-bottom: 12px;
}
.flex-stat-num span { font-size: 1.3rem; font-weight: 400; }
.flex-stat-label {
    font-size: 0.9rem;
    color: var(--text-body);
    line-height: 1.6;
}

/* ══════════════════════════════════
   WORKS — ケーススタディ
══════════════════════════════════ */
.works-hero-img {
    width: 100%;
    aspect-ratio: 16/7;
    object-fit: cover;
    object-position: center;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.works-meta-bar {
    background: var(--off-white);
    border-bottom: 1px solid var(--border);
    padding: 20px 64px;
}
.works-meta-inner {
    display: flex;
    align-items: center;
    gap: 48px;
    flex-wrap: wrap;
}
.works-meta-item {
    font-size: 0.88rem;
    letter-spacing: 0.06em;
    color: var(--text-body);
}
.works-meta-item strong {
    display: block;
    color: var(--black);
    font-size: 0.9rem;
    margin-bottom: 2px;
}
.works-detail {
    padding: 120px 64px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}
.works-sub-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}
.works-sub-grid img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border: 1px solid var(--border);
    border-radius: 6px;
}
.works-pr-link {
    color: var(--text-body);
    text-decoration: none;
    transition: color 0.2s;
}
.works-pr-link:hover { color: var(--black); }
.works-pr {
    display: inline-block;
    margin-top: 20px;
    font-size: 0.85rem;
    text-decoration: none;
    letter-spacing: 0.1em;
    color: var(--text-sub);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 6px 16px;
}

/* ══════════════════════════════════
   USE CASES
══════════════════════════════════ */
.persona-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 80px;
    margin-top: 64px;
}
.persona-item {
    padding: 36px 0;
    border-top: 1px solid var(--border);
}
.persona-role {
    font-family: 'Shippori Mincho B1', serif;
    font-size: 1.15rem;
    font-weight: 500;
    color: var(--black);
    margin-bottom: 12px;
}
.persona-desc {
    font-size: 0.88rem;
    color: var(--text-body);
    line-height: 1.85;
}

/* ══════════════════════════════════
   FLOW
══════════════════════════════════ */
.flow-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    margin-top: 56px;
}
.flow-step {
    padding: 32px 20px;
    border-right: 1px solid var(--border);
    position: relative;
}
.flow-step:last-child { border-right: none; }
.flow-step-num {
    font-size: 0.78rem;
    letter-spacing: 0.12em;
    color: var(--text-sub);
    margin-bottom: 14px;
    display: block;
}
.flow-step-label {
    font-size: 1rem;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 8px;
    line-height: 1.4;
}
.flow-step-desc {
    font-size: 0.9rem;
    color: var(--text-body);
    line-height: 1.8;
}
.flow-arrow {
    position: absolute;
    top: 32px; right: -7px;
    width: 12px; height: 12px;
    border-top: 1px solid var(--border);
    border-right: 1px solid var(--border);
    transform: rotate(45deg);
    background: var(--white);
    z-index: 1;
}
.flow-step:last-child .flow-arrow { display: none; }

/* ══════════════════════════════════
   FAQ — アコーディオン
══════════════════════════════════ */
.faq-list { margin-top: 56px; border-top: 1px solid var(--border); }
.faq-item {
    border-bottom: 1px solid var(--border);
}
.faq-q {
    list-style: none;
    cursor: pointer;
    padding: 28px 0;
    display: grid;
    grid-template-columns: 32px 1fr 28px;
    gap: 16px;
    align-items: baseline;
    font-family: 'Shippori Mincho B1', serif;
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--black);
    line-height: 1.65;
    transition: color 0.2s;
}
.faq-q::-webkit-details-marker { display: none; }
.faq-q-mark {
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--text-sub);
    letter-spacing: 0.1em;
}
.faq-plus {
    font-size: 1.2rem;
    font-weight: 300;
    color: var(--text-sub);
    text-align: right;
    transition: transform 0.3s, color 0.2s;
    line-height: 1;
}
.faq-item[open] .faq-plus {
    transform: rotate(45deg);
    color: var(--black);
}
.faq-item[open] .faq-q { color: var(--black); }
.faq-q:hover { color: var(--text-body); }
.faq-a-wrap {
    padding: 0 0 28px 48px;
}
.faq-a {
    font-size: 1rem;
    color: var(--text-body);
    line-height: 2;
}

/* ══════════════════════════════════
   CTA
══════════════════════════════════ */
.lp-cta-section {
    background: #ffffff;
    padding: 100px 64px;
    position: relative;
    overflow: hidden;
}
.lp-cta-inner {
    max-width: 1080px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}
.lp-cta-bullets {
    list-style: none;
    margin-top: 32px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.lp-cta-bullets li {
    font-size: 0.88rem;
    color: var(--text-body);
    padding-left: 16px;
    border-left: 2px solid var(--border);
    line-height: 1.6;
}
.lp-cta-form-wrap {
    background: var(--off-white);
    border-radius: 12px;
    padding: 40px;
}
.lp-contact-form { display: flex; flex-direction: column; gap: 16px; }
.lp-form-group { display: flex; flex-direction: column; }
.lp-form-input {
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 14px 16px;
    font-size: 0.9rem;
    font-family: inherit;
    color: var(--text-main);
    outline: none;
    transition: border-color 0.2s;
    resize: none;
}
.lp-form-input:focus { border-color: var(--text-body); }
.lp-form-input::placeholder { color: var(--text-sub); }
.lp-form-privacy { flex-direction: row; align-items: center; }
.lp-privacy-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--text-body);
    cursor: pointer;
}
.lp-privacy-label a { color: var(--text-body); }
.lp-form-submit {
    background: var(--text-main);
    color: var(--white);
    border: none;
    border-radius: 6px;
    padding: 16px;
    font-size: 0.88rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: background 0.2s;
    margin-top: 4px;
}
.lp-form-submit:hover { background: var(--text-body); }
.lp-form-submit:disabled { opacity: 0.6; cursor: default; }
.lp-form-note {
    margin-top: 12px;
    font-size: 0.76rem;
    color: var(--text-sub);
    text-align: center;
}
.lp-cta-bg-text {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    font-size: 18vw;
    font-weight: 800;
    color: rgba(0,0,0,0.04);
    white-space: nowrap;
    pointer-events: none;
    user-select: none;
}
.lp-cta-heading {
    font-family: 'Shippori Mincho B1', serif;
    font-size: clamp(1.4rem, 2.5vw, 2.2rem);
    font-weight: 400;
    color: var(--text-main);
    line-height: 1.8;
    margin-bottom: 16px;
    position: relative;
}
.lp-cta-sub {
    font-size: 0.92rem;
    color: var(--text-body);
    position: relative;
}
.lp-cta-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-bottom: 48px;
    position: relative;
}
.lp-cta-tag {
    font-size: 0.7rem;
    color: var(--text-sub);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 5px 16px;
    letter-spacing: 0.05em;
}
.lp-cta-main-btn {
    display: inline-block;
    padding: 18px 60px;
    background: var(--text-main);
    color: var(--white);
    font-size: 0.84rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-decoration: none;
    border-radius: 6px;
    transition: background 0.2s;
    position: relative;
}
.lp-cta-main-btn:hover { background: var(--text-body); }

/* ══════════════════════════════════
   BRIDGE → museum-dx
══════════════════════════════════ */
.lp-dx-bridge {
    background: var(--off-white);
    padding: 72px 64px;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.lp-dx-bridge-inner {
    display: flex;
    align-items: center;
    gap: 64px;
}
.lp-dx-bridge-heading {
    font-family: 'Shippori Mincho B1', serif;
    font-size: clamp(1.1rem, 2vw, 1.5rem);
    font-weight: 400;
    line-height: 1.7;
    color: var(--black);
}
.lp-dx-bridge-btn {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    padding: 20px 40px;
    border: 1px solid var(--black);
    border-radius: 6px;
    color: var(--black);
    text-decoration: none;
    font-size: 0.9rem;
    letter-spacing: 0.08em;
    white-space: nowrap;
    transition: background 0.25s, color 0.25s;
}
.lp-dx-bridge-btn:hover {
    background: var(--black);
    color: var(--white);
}
@media (max-width: 900px) {
    .lp-dx-bridge { padding: 56px 24px; }
    .lp-dx-bridge-inner { flex-direction: column; align-items: flex-start; gap: 24px; }
}
@media (max-width: 600px) {
    .lp-dx-bridge { padding: 48px 20px; }
}

/* ══════════════════════════════════
   フッター
══════════════════════════════════ */
.back-to-top {
    position: fixed;
    bottom: 120px;
    right: 40px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--text-main);
    color: var(--white);
    border: none;
    font-size: 1.1rem;
    cursor: pointer;
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.3s, transform 0.3s;
    pointer-events: none;
    z-index: 900;
}
.back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}
.back-to-top:hover { background: var(--text-body); }

.lp-footer {
    padding: 28px 64px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.lp-footer-logo {
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--black);
    text-decoration: none;
}
.lp-footer-copy { font-size: 0.68rem; color: var(--text-sub); }

/* ══════════════════════════════════
   レスポンシブ
══════════════════════════════════ */
@media (max-width: 1024px) {
    .flow-steps { grid-template-columns: repeat(2, 1fr); }
    .flow-step:nth-child(2) { border-right: none; }
    .flow-step:nth-child(2) .flow-arrow { display: none; }
    .flow-step:nth-child(n+3) { border-top: 1px solid var(--border); }
}

@media (max-width: 600px) {
    html { font-size: 16px; }

    .lp-hero { background: #4a4845; }
    .lp-hero-bg {
        object-fit: cover;
        object-position: center 30%;
        width: 125%;
        height: 125%;
        left: -12%;
        top: -12%;
    }
    .lp-hero-grad {
        background: linear-gradient(
            to top,
            rgba(20,18,14,0.8) 0%,
            rgba(20,18,14,0.5) 35%,
            rgba(20,18,14,0.0) 70%
        );
    }
    .lp-hero-content { padding: 0 20px 40px; }
    .lp-hero-title { font-size: clamp(1.6rem, 7vw, 2.4rem); }
    .lp-hero-sub { white-space: normal; max-width: 90vw; }
    .lp-hero-scroll { right: 20px; }

    .lp-sec { padding: 56px 20px; }
    .lp-statement { padding: 64px 20px; }
    .lp-products { padding: 24px 20px 56px; }
    .lp-cta-section { padding: 56px 20px; }
    .lp-cta-inner { gap: 32px; }
    .lp-cta-form-wrap { padding: 24px 20px; }
    .lp-cta-bullets { display: none; }

    .sec-heading { font-size: clamp(1.4rem, 6vw, 2rem); }

    .kw-item { padding: 28px 20px; border-right: none; border-bottom: 1px solid var(--border); }
    .kw-item:last-child { border-bottom: none; }

    .works-sub-grid { grid-template-columns: repeat(2, 1fr); }

    .impl-open-item:last-child { border-bottom: 1px solid var(--border); }

    .persona-grid { gap: 0; }

    .lp-products-grid { grid-template-columns: 1fr; }

    .challenge-grid { grid-template-columns: 1fr; }

    .works-detail { padding: 60px 20px; }
}

@media (max-width: 900px) {
    .lp-header { padding: 0 24px; }
    .lp-hero-content { padding: 0 24px 60px; }
    .lp-hero-scroll { right: 24px; }
    .lp-statement { padding: 72px 24px; }
    .lp-sec { padding: 72px 24px; }
    .lp-split { grid-template-columns: 1fr; }
    .lp-split-img { min-height: 280px; }
    .lp-split-body { padding: 48px 24px; }
    .lp-products { padding: 32px 24px 72px; }
    .lp-products-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
    .challenge-grid { grid-template-columns: 1fr; }
    .impl-list { grid-template-columns: 1fr; }
    .impl-item { border-right: none !important; }
    .impl-item:last-child { border-bottom: none; }
    .flex-stats { grid-template-columns: 1fr; }
    .flex-stat { border-right: none; border-bottom: 1px solid var(--border); }
    .flex-stat:last-child { border-bottom: none; }
    .works-meta-bar { padding: 20px 24px; }
    .works-meta-inner { gap: 24px; }
    .works-detail { grid-template-columns: 1fr; gap: 40px; padding: 80px 24px; }
    .persona-grid { grid-template-columns: 1fr; gap: 0; }
    .flow-steps { grid-template-columns: 1fr; }
    .flow-step { border-right: none; border-bottom: 1px solid var(--border); }
    .flow-step:last-child { border-bottom: none; }
    .flow-arrow { display: none; }
    .lp-cta-section { padding: 72px 24px; }
    .lp-cta-inner { grid-template-columns: 1fr; gap: 48px; }
    .lp-cta-form-wrap { padding: 28px 24px; }
    .lp-footer { padding: 24px; flex-direction: column; gap: 10px; text-align: center; }
}


/* ══════════════════════════════════
   確認オーバーレイ
══════════════════════════════════ */
.lp-confirm-overlay {
    position: fixed;
    inset: 0;
    background: rgba(20,18,14,0.6);
    backdrop-filter: blur(6px);
    z-index: 9000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}
.lp-confirm-overlay.active {
    opacity: 1;
    pointer-events: auto;
}
.lp-confirm-modal {
    background: var(--white);
    border-radius: 12px;
    padding: 48px;
    max-width: 560px;
    width: 100%;
    transform: translateY(16px);
    transition: transform 0.3s;
}
.lp-confirm-overlay.active .lp-confirm-modal {
    transform: translateY(0);
}
.lp-confirm-label {
    font-size: 0.72rem;
    letter-spacing: 0.2em;
    color: var(--text-sub);
    margin-bottom: 16px;
}
.lp-confirm-heading {
    font-family: 'Shippori Mincho B1', serif;
    font-size: 1.3rem;
    font-weight: 400;
    color: var(--black);
    margin-bottom: 32px;
    line-height: 1.6;
}
.lp-confirm-table {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 12px 16px;
    margin-bottom: 36px;
    border-top: 1px solid var(--border);
    padding-top: 24px;
}
.lp-confirm-table dt {
    font-size: 0.78rem;
    color: var(--text-sub);
    letter-spacing: 0.06em;
    padding-top: 2px;
}
.lp-confirm-table dd {
    font-size: 0.92rem;
    color: var(--black);
    line-height: 1.7;
    white-space: pre-wrap;
    word-break: break-all;
}
.lp-confirm-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}
.lp-confirm-btn-back {
    flex: 1;
    padding: 14px;
    background: none;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.85rem;
    color: var(--text-body);
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s;
}
.lp-confirm-btn-back:hover { border-color: var(--text-body); color: var(--black); }
.lp-confirm-btn-send {
    flex: 2;
    padding: 14px;
    background: var(--black);
    border: none;
    border-radius: 6px;
    font-size: 0.85rem;
    color: var(--white);
    cursor: pointer;
    letter-spacing: 0.06em;
    transition: background 0.2s;
}
.lp-confirm-btn-send:hover { background: var(--text-body); }
.lp-confirm-btn-send:disabled { opacity: 0.6; cursor: default; }
@media (max-width: 600px) {
    .lp-confirm-modal { padding: 32px 24px; }
    .lp-confirm-table { grid-template-columns: 1fr; gap: 4px 0; }
    .lp-confirm-table dt { color: var(--text-sub); font-size: 0.72rem; margin-top: 12px; }
    .lp-confirm-actions { flex-direction: column; }
}

/* ══════════════════════════════════
   ウェーブ区切り
══════════════════════════════════ */
.wave-div {
    display: block;
    line-height: 0;
    font-size: 0;
}
.wave-div svg {
    display: block;
    width: 100%;
    height: 70px;
}
@media (max-width: 900px) {
    .wave-div svg { height: 50px; }
}
@media (max-width: 600px) {
    .wave-div svg { height: 36px; }
}


/* ══════════════════════════════════
   アニメーション追加スタイル
══════════════════════════════════ */

/* スクロールプログレスバー */
.scroll-progress {
    position: fixed;
    top: 0; left: 0;
    height: 3px;
    background: var(--text-main);
    z-index: 9999;
    width: 0%;
    transition: width 0.1s linear;
}

/* 文字スプリット */
.split-word {
    display: inline-block;
    overflow: hidden;
    vertical-align: bottom;
}
.split-char {
    display: inline-block;
    transform: translateY(110%);
    opacity: 0;
    transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1),
                opacity 0.4s ease;
}
.split-char.on {
    transform: translateY(0);
    opacity: 1;
}

/* クリップパス ワイプ（画像） */
.clip-reveal {
    clip-path: inset(0 100% 0 0);
    transition: clip-path 1.1s cubic-bezier(0.16, 1, 0.3, 1);
}
.clip-reveal.on {
    clip-path: inset(0 0% 0 0);
}

/* スタガー（グリッド） */
.stagger-item {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.stagger-item.on {
    opacity: 1;
    transform: translateY(0);
}

/* ラインドロー（横線） */
.line-draw {
    width: 0;
    height: 1px;
    background: var(--border);
    transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}
.line-draw.on { width: 100%; }

/* カウントアップ数字 */
.count-num {
    display: inline-block;
}

/* スライドイン 左から */
.slide-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.9s ease, transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}
.slide-left.on { opacity: 1; transform: translateX(0); }

/* スライドイン 右から */
.slide-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.9s ease, transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}
.slide-right.on { opacity: 1; transform: translateX(0); }

/* ヒーロータイトル — 大きなスケールから */
.hero-title-anim {
    opacity: 0;
    transform: translateY(36px);
    transition: opacity 1s ease 0.3s, transform 1s cubic-bezier(0.16, 1, 0.3, 1) 0.3s;
}
.hero-title-anim.on { opacity: 1; transform: translateY(0); }

/* ワークス画像 ー ゆっくりスケール */
.works-img-zoom {
    overflow: hidden;
}
.works-img-zoom img {
    transform: scale(1.06);
    transition: transform 1.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.works-img-zoom.on img { transform: scale(1); }