/* 戦国大図鑑 LP */
.sz-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid #e7e2d7;
}
.sz-header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 64px; }
.sz-header-brand, .sz-header-actions { display: flex; align-items: center; gap: 14px; }
.sz-header-brand { color: #182238; font-size: 1.1rem; font-weight: 700; }
.sz-header-brand img { border-radius: 8px; box-shadow: 0 3px 10px rgba(24, 34, 56, 0.2); }
.sz-header-web { color: #182238; font-size: 0.9rem; font-weight: 700; text-decoration: underline; text-underline-offset: 4px; }
.sengoku-lp { background: #fff; }
.sengoku-lp .app-content { padding: 80px 0 48px; }
.sengoku-hero { background: #f7f3ea; border: 0; padding: 0; }
.sengoku-hero-inner { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.95fr); align-items: center; gap: 64px; min-height: 640px; }
.sengoku-brand { color: #182238; font-family: "Noto Serif JP", serif; font-size: 1.05rem; }
.sengoku-eyebrow { color: #9b261f; letter-spacing: 0.06em; }
.sengoku-hero h1 { max-width: 100%; color: #182238; font-family: "Noto Serif JP", serif; font-size: clamp(2.35rem, 3.7vw, 3.1rem); font-weight: 700; letter-spacing: 0; line-height: 1.28; }
.sengoku-hero-title-line { display: block; }
@media (min-width: 769px) {
    .sengoku-hero-title-line { white-space: nowrap; }
}
.sengoku-hero-lead { color: #495366; font-size: 1.06rem; }
.sengoku-stats { margin: 30px 0; }
.sengoku-stats strong { color: #9b261f; font-family: "Noto Serif JP", serif; }
.sengoku-hero-actions { gap: 0; }
.sengoku-play-badge { display: inline-block; line-height: 0; transition: transform 0.2s ease, opacity 0.2s ease; }
.sengoku-play-badge:hover { opacity: 0.9; transform: translateY(-2px); }
.sengoku-play-badge img { display: block; width: auto; height: 56px; }
.sengoku-platform { font-size: 0.84rem; }
.sengoku-hero-visual { align-self: end; max-width: 430px; margin: 40px auto 0; border: 9px solid #1f2635; border-bottom: 0; border-radius: 24px 24px 0 0; box-shadow: 0 24px 48px rgba(24, 34, 56, 0.22); }
.sengoku-hero-visual img { border-radius: 15px 15px 0 0; }
.sengoku-usecases { margin-bottom: 80px; }
.sengoku-section-label { color: #9b261f; letter-spacing: 0.08em; }
.sengoku-usecases h2 { font-family: "Noto Serif JP", serif; font-size: clamp(1.7rem, 3vw, 2.4rem); line-height: 1.45; }
.sengoku-usecase-grid { gap: 0; border-top: 1px solid #ded7c9; border-bottom: 1px solid #ded7c9; }
.sengoku-usecase-grid article { border: 0; border-left: 1px solid #ded7c9; padding: 24px 28px 28px; }
.sengoku-usecase-grid article:first-child { border-left: 0; }
.sengoku-usecase-grid h3 { color: #182238; font-size: 1.05rem; }
.sengoku-usecase-grid p { color: #5b6473; }
.sengoku-lp .feature-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); margin-bottom: 88px; }
.sengoku-lp .feature-card { border: 1px solid #e7e2d7; border-radius: 8px; box-shadow: none; }
.sengoku-lp .feature-card:hover { transform: translateY(-4px) !important; box-shadow: 0 16px 28px rgba(24, 34, 56, 0.09); }
.sengoku-lp .feature-card .icon { color: #9b261f; }
.feature-card--quiz { position: relative; overflow: hidden; }
.feature-new { position: absolute; top: 14px; right: 14px; padding: 4px 8px; border-radius: 999px; background: #9b261f; color: #fff; font-size: 0.68rem; font-weight: 800; letter-spacing: 0.08em; }
.sengoku-quiz { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1.1fr); align-items: center; gap: clamp(40px, 7vw, 88px); margin: 0 0 96px; padding: clamp(40px, 6vw, 72px); border-radius: 18px; background: radial-gradient(circle at 88% 12%, rgba(212, 169, 75, 0.22), transparent 32%), linear-gradient(145deg, #111a2d, #1c2946); color: #f8f3e7; box-shadow: 0 24px 60px rgba(24, 34, 56, 0.2); }
.sengoku-quiz-kicker { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; color: #ead18b; font-size: 0.78rem; font-weight: 800; letter-spacing: 0.08em; }
.sengoku-quiz-kicker span:first-child { padding: 4px 8px; border-radius: 999px; background: #9b261f; color: #fff; font-size: 0.66rem; }
.sengoku-quiz h2 { margin-bottom: 18px; color: #fff; font-family: "Noto Serif JP", serif; font-size: clamp(2rem, 4vw, 3.25rem); line-height: 1.35; }
.sengoku-quiz-copy > p:not(.sengoku-quiz-kicker) { color: #d8deeb; line-height: 1.9; }
.sengoku-quiz-points { display: grid; gap: 10px; margin-top: 24px; }
.sengoku-quiz-points li { position: relative; padding-left: 26px; color: #f4ead0; font-size: 0.92rem; }
.sengoku-quiz-points li::before { content: '✓'; position: absolute; left: 0; color: #d4a94b; font-weight: 900; }
.quiz-teaser-card { padding: clamp(24px, 4vw, 36px); border: 1px solid rgba(238, 211, 139, 0.38); border-radius: 18px; background: rgba(9, 16, 31, 0.78); box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06), 0 18px 42px rgba(0, 0, 0, 0.24); }
.quiz-teaser-topline { display: flex; align-items: center; justify-content: space-between; color: #d4a94b; font-size: 0.78rem; font-weight: 800; letter-spacing: 0.04em; }
.quiz-teaser-topline span:last-child { padding: 5px 10px; border: 1px solid rgba(212, 169, 75, 0.4); border-radius: 999px; }
.quiz-teaser-progress { margin: 24px 0 8px; color: rgba(248, 243, 231, 0.58); font-size: 0.74rem; }
.quiz-teaser-card h3 { margin-bottom: 22px; color: #fff; font-size: clamp(1.15rem, 2vw, 1.45rem); line-height: 1.55; }
.quiz-teaser-options { display: grid; gap: 10px; }
.quiz-teaser-options button { width: 100%; padding: 13px 16px; border: 1px solid rgba(248, 243, 231, 0.18); border-radius: 10px; background: rgba(255, 255, 255, 0.055); color: #f8f3e7; font: inherit; font-weight: 700; text-align: left; cursor: pointer; transition: border-color 0.18s ease, background 0.18s ease, transform 0.18s ease; }
.quiz-teaser-options button:hover:not(:disabled) { transform: translateY(-1px); border-color: #d4a94b; background: rgba(212, 169, 75, 0.12); }
.quiz-teaser-options button.is-correct { border-color: #6fcf97; background: rgba(111, 207, 151, 0.15); }
.quiz-teaser-options button.is-incorrect { border-color: #e37b73; background: rgba(227, 123, 115, 0.14); }
.quiz-teaser-options button:disabled { cursor: default; }
.quiz-teaser-feedback { display: grid; gap: 5px; margin-top: 18px; color: #d8deeb; font-size: 0.86rem; line-height: 1.55; }
.quiz-teaser-feedback strong { color: #fff; }
.quiz-teaser-feedback[hidden], .quiz-teaser-feedback [hidden] { display: none; }
.quiz-teaser-cta { display: flex; justify-content: center; margin-top: 20px; padding: 14px 18px; border-radius: 10px; background: linear-gradient(135deg, #b88824, #e1bc58); color: #111a2d; font-weight: 900; text-align: center; box-shadow: 0 10px 24px rgba(212, 169, 75, 0.2); }
.quiz-teaser-cta:hover { color: #111a2d; transform: translateY(-2px); }
.sengoku-lp .screenshot-flow { gap: 48px; margin: 0 0 88px; }
.sengoku-lp .screenshot-card, .sengoku-lp .screenshot-card:nth-child(even) { display: grid; grid-template-columns: minmax(220px, 300px) 1fr; align-items: center; gap: 64px; padding: 0; border: 0; border-radius: 0; box-shadow: none; background: transparent; overflow: visible; }
.sengoku-lp .screenshot-card:nth-child(even) { grid-template-columns: 1fr minmax(220px, 300px); }
.sengoku-lp .screenshot-card:nth-child(even) img { grid-column: 2; grid-row: 1; }
.sengoku-lp .screenshot-card:nth-child(even) .screenshot-text { grid-column: 1; grid-row: 1; }
.sengoku-lp .screenshot-card img { width: 100%; max-width: 300px; border: 8px solid #1f2635; border-radius: 24px; box-shadow: 0 18px 36px rgba(24, 34, 56, 0.18); }
.sengoku-lp .screenshot-text h3 { color: #182238; font-family: "Noto Serif JP", serif; font-size: 1.8rem; }
.sengoku-lp .screenshot-text p { color: #5b6473; font-size: 1rem; line-height: 1.9; }
.sengoku-lp .app-recommend { margin-bottom: 72px; border: 1px solid #e7e2d7; border-radius: 8px; background: #f7f3ea; }
.sengoku-download { margin: 0 0 72px; padding: 40px; border: 0; border-radius: 8px; background: #182238; color: white; }
.sengoku-download h2 { color: white; font-family: "Noto Serif JP", serif; font-size: 1.65rem; }
.sengoku-download p { color: #d7dce6; }
.sengoku-download > img { box-shadow: none; }
.sengoku-download .sengoku-play-badge { margin-left: auto; flex-shrink: 0; }
.sengoku-lp .seo-about-section { border-top: 1px solid #e7e2d7; padding-top: 56px; }
@media (max-width: 1024px) {
    .sengoku-lp .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 768px) {
    .sz-header-inner { min-height: 56px; }
    .sz-header-brand { font-size: 0.98rem; gap: 8px; }
    .sz-header-brand img { width: 30px; height: 30px; }
    .sz-header-web { display: none; }
    .sengoku-hero-inner { grid-template-columns: 1fr; gap: 24px; min-height: auto; padding-top: 44px; }
    .sengoku-hero-copy { text-align: center; }
    .sengoku-brand, .sengoku-stats, .sengoku-hero-actions { justify-content: center; }
    .sengoku-hero h1 { font-size: clamp(2rem, 9.2vw, 2.7rem); }
    .sengoku-hero-lead { font-size: 1rem; }
    .sengoku-hero-visual { max-width: 300px; margin-top: 0; }
    .sengoku-usecases { margin-bottom: 56px; }
    .sengoku-usecase-grid { grid-template-columns: 1fr; }
    .sengoku-usecase-grid article, .sengoku-usecase-grid article:first-child { border-left: 0; border-top: 1px solid #ded7c9; }
    .sengoku-usecase-grid article:first-child { border-top: 0; }
    .sengoku-lp .app-content { padding-top: 56px; }
    .sengoku-lp .feature-grid { grid-template-columns: 1fr; margin-bottom: 64px; }
    .sengoku-quiz { grid-template-columns: 1fr; gap: 32px; margin-bottom: 64px; padding: 32px 22px; }
    .sengoku-quiz-copy { text-align: center; }
    .sengoku-quiz-kicker { justify-content: center; }
    .sengoku-quiz-points { display: inline-grid; text-align: left; }
    .sengoku-lp .screenshot-flow { gap: 64px; margin-bottom: 64px; }
    .sengoku-lp .screenshot-card, .sengoku-lp .screenshot-card:nth-child(even) { display: flex; flex-direction: column; gap: 28px; text-align: center; }
    .sengoku-lp .screenshot-card:nth-child(even) img, .sengoku-lp .screenshot-card:nth-child(even) .screenshot-text { order: initial; }
    .sengoku-lp .screenshot-text h3 { font-size: 1.5rem; }
    .sengoku-download { align-items: center; padding: 32px 24px; text-align: center; }
    .sengoku-download > img { display: none; }
    .sengoku-download .sengoku-play-badge { margin: 8px auto 0; }
    .sengoku-play-badge img { height: 52px; }
}