/* バナー画像のトンマナに合わせたCSS */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Hiragino Kaku Gothic ProN', 'メイリオ', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

/* ヒーローセクション - ウェブサイトLPらしい構成 */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, #e8f4fd 0%, #dcebfa 40%, #f5f9ff 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    overflow: hidden;
}

/* 動的な背景要素 */
.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 20% 20%, rgba(0, 100, 200, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 80% 80%, rgba(220, 0, 0, 0.12) 0%, transparent 40%),
        radial-gradient(circle at 40% 60%, rgba(30, 60, 120, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 60% 30%, rgba(100, 150, 255, 0.1) 0%, transparent 35%);
    animation: floatBackground 25s ease-in-out infinite;
    z-index: 0;
}

@keyframes floatBackground {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    25% {
        transform: translate(-20px, -30px) rotate(1deg);
    }
    50% {
        transform: translate(20px, -20px) rotate(-1deg);
    }
    75% {
        transform: translate(-10px, 20px) rotate(0.5deg);
    }
}

/* 浮遊する幾何学的要素 */
.hero::after {
    content: '';
    position: absolute;
    top: 10%;
    right: 10%;
    width: 80px;
    height: 80px;
    background: linear-gradient(45deg, rgba(0, 100, 200, 0.1), rgba(220, 0, 0, 0.1));
    border-radius: 50%;
    animation: floatCircle 15s ease-in-out infinite;
    z-index: 0;
}

@keyframes floatCircle {
    0%, 100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.3;
    }
    25% {
        transform: translate(-30px, -20px) scale(1.1);
        opacity: 0.5;
    }
    50% {
        transform: translate(20px, -40px) scale(0.9);
        opacity: 0.2;
    }
    75% {
        transform: translate(-10px, 30px) scale(1.05);
        opacity: 0.4;
    }
}

/* 追加の動的要素 */
.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.floating-elements::before {
    content: '';
    position: absolute;
    top: 20%;
    left: 5%;
    width: 60px;
    height: 60px;
    background: rgba(30, 60, 120, 0.08);
    border-radius: 20px;
    animation: floatSquare 12s ease-in-out infinite;
}

.floating-elements::after {
    content: '';
    position: absolute;
    bottom: 20%;
    right: 15%;
    width: 40px;
    height: 40px;
    background: rgba(220, 0, 0, 0.1);
    border-radius: 50%;
    animation: floatDot 18s ease-in-out infinite;
}

@keyframes floatSquare {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
        opacity: 0.3;
    }
    33% {
        transform: translate(40px, -20px) rotate(120deg);
        opacity: 0.6;
    }
    66% {
        transform: translate(-20px, 30px) rotate(240deg);
        opacity: 0.2;
    }
}

@keyframes floatDot {
    0%, 100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.4;
    }
    50% {
        transform: translate(-50px, -30px) scale(1.5);
        opacity: 0.8;
    }
}

.hero-container {
    max-width: 1200px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 60px;
    position: relative;
    z-index: 1;
}

/* ロゴ */
.hero-logo {
    margin-top: 40px;
    margin-bottom: 40px;
    text-align: center;
    animation: fadeInDown 0.8s ease-out;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.logo-img {
    height: 65px;
    width: auto;
    opacity: 1;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    filter: drop-shadow(0 4px 12px rgba(30, 60, 120, 0.15));
}

.logo-img:hover {
    opacity: 1;
    transform: scale(1.08) translateY(-2px);
    filter: drop-shadow(0 8px 20px rgba(30, 60, 120, 0.25));
}

/* メインコンテンツ */
.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.conference-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, #dc0000 0%, #ff3333 100%);
    color: white;
    padding: 10px 24px;
    border-radius: 30px;
    font-weight: 700;
    font-size: 0.95rem;
    margin-bottom: 35px;
    box-shadow: 0 4px 16px rgba(220, 0, 0, 0.3);
    transition: all 0.3s ease;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 4px 16px rgba(220, 0, 0, 0.3);
    }
    50% {
        box-shadow: 0 6px 24px rgba(220, 0, 0, 0.5);
    }
}

.conference-badge:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(220, 0, 0, 0.4);
}

.conference-badge i {
    font-size: 1.1rem;
    animation: iconBounce 2s ease-in-out infinite;
}

@keyframes iconBounce {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

.main-title {
    font-size: clamp(2.8rem, 7vw, 4.5rem);
    font-weight: 900;
    background: linear-gradient(135deg, #1e3c78 0%, #0064c8 50%, #1e3c78 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    margin-bottom: 25px;
    letter-spacing: -0.02em;
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% {
        background-position: 0% center;
    }
    50% {
        background-position: 100% center;
    }
}

.title-line1 {
    display: block;
    margin-bottom: 12px;
}

.title-line2 {
    display: block;
}

.subtitle {
    font-size: clamp(1.3rem, 3vw, 2rem);
    color: #1e3c78;
    font-weight: 600;
    margin-bottom: 25px;
    text-shadow: 0 2px 8px rgba(30, 60, 120, 0.1);
}

.target-audience {
    margin-bottom: 45px;
}

.target-audience p {
    color: #555;
    font-size: 1.15rem;
    font-weight: 600;
    background: linear-gradient(135deg, rgba(30, 60, 120, 0.08) 0%, rgba(220, 0, 0, 0.06) 100%);
    padding: 12px 30px;
    border-radius: 30px;
    display: inline-block;
    border: 1px solid rgba(30, 60, 120, 0.15);
}

/* イベント詳細 */
.event-details {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 25px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.event-date {
    display: flex;
    align-items: center;
    gap: 12px;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    padding: 18px 30px;
    border-radius: 20px;
    border: 2px solid #1e3c78;
    box-shadow: 0 8px 24px rgba(30, 60, 120, 0.15);
    transition: all 0.3s ease;
}

.event-date:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(30, 60, 120, 0.25);
}

.date-main {
    font-size: 2.8rem;
    font-weight: 900;
    background: linear-gradient(135deg, #1e3c78 0%, #0064c8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.date-day {
    background: linear-gradient(135deg, #ce4646 0%, #ff3333 100%);
    color: white;
    margin-top: 5px;
    padding: 10px 14px;
    border-radius: 12px;
    font-weight: 800;
    font-size: 1.1rem;
    box-shadow: 0 4px 12px rgba(220, 0, 0, 0.3);
}

.event-time,
.event-format {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #333;
    font-size: 1.1rem;
    font-weight: 600;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    padding: 14px 24px;
    border-radius: 15px;
    border: 2px solid #e2e8f0;
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.event-time:hover,
.event-format:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
    border-color: #1e3c78;
}

.event-time i,
.event-format i {
    color: #0064c8;
    font-size: 1.2rem;
}

/* CTAボタン */
.hero-cta {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 20px 45px;
    border-radius: 18px;
    text-decoration: none;
    font-weight: 800;
    font-size: 1.2rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.6s ease;
}

.cta-button:hover::before {
    left: 100%;
}

.cta-button.primary {
    background: linear-gradient(135deg, #1e3c78 0%, #2c4a8a 100%);
    color: white;
}

.cta-button.primary:hover {
    background: linear-gradient(135deg, #2c4a8a 0%, #1e3c78 100%);
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 16px 40px rgba(30, 60, 120, 0.35);
}

.cta-button.secondary {
    background: white;
    color: #1e3c78;
    border: 3px solid #1e3c78;
}

.cta-button.secondary:hover {
    background: linear-gradient(135deg, #1e3c78 0%, #2c4a8a 100%);
    color: white;
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 16px 40px rgba(30, 60, 120, 0.35);
}

.cta-button i {
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.cta-button:hover i {
    transform: translateX(4px);
}

/* 2カラムレイアウト */
.speakers-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    max-width: 1000px;
    width: 100%;
    margin-top: 40px;
}

.speakers-left {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 20px;
    padding: 35px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
    border: 2px solid #e2e8f0;
    position: relative;
    transition: all 0.3s ease;
}

.speakers-left:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.15);
}

.speakers-right {
    display: flex;
    flex-direction: column;
    gap: 30px;
    height: 100%;
}

.speakers-right > * {
    flex: 1;
}

.highlight-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 25px;
    font-weight: 600;
    color: #333;
    font-size: 1.1rem;
}

.highlight-header i {
    color: #dc0000;
    font-size: 1.3rem;
}

.speaker-preview {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.speaker-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: #f8fafc;
    border-radius: 12px;
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.speaker-item:hover {
    background: #f1f5f9;
    transform: translateX(5px);
    border-color: #1e3c78;
}

.speaker-avatar {
    width: 50px;
    height: 50px;
    background: #1e3c78;
    border-radius: 50%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.2rem;
    overflow: hidden;
}

.speaker-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 山中先生の写真を引きで表示 */
/* .speaker-avatar img[alt*="山中"] {
    object-fit: contain;
    transform: scale(0.9);
    background: white;
} */

.speaker-info {
    flex: 1;
}

.speaker-school {
    font-size: 0.95rem;
    color: #666;
    font-weight: 500;
    margin-bottom: 2px;
}

.speaker-name {
    font-size: 1.1rem;
    color: #1e3c78;
    font-weight: 700;
}

/* 名前と敬称の間のスペースを調整 */
.name-text {
    margin-right: 7px;
    /* 苗字と名前の間も少し広げる */
    word-spacing: 0.1em;
}

/* ゲスト情報 */
.guest-section {
    background: linear-gradient(135deg, #ffffff 0%, #fff8f8 100%);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 8px 30px rgba(30, 60, 120, 0.15);
    border: 2px solid #1e3c78;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    transition: all 0.3s ease;
}

.guest-section:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(30, 60, 120, 0.25);
}

.guest-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 15px;
    font-weight: 600;
    color: #dc0000;
    font-size: 1rem;
}

.guest-header i {
    font-size: 1.1rem;
}

.guest-info {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px;
    background: rgba(220, 0, 0, 0.05);
    border-radius: 10px;
    border: 1px solid rgba(220, 0, 0, 0.1);
}

.guest-avatar {
    width: 45px;
    height: 45px;
    background: #dc0000;
    border-radius: 50%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1rem;
    overflow: hidden;
}

.guest-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.guest-details {
    flex: 1;
}

.guest-role {
    font-size: 0.85rem;
    color: #666;
    font-weight: 500;
    margin-bottom: 2px;
}

.guest-name {
    font-size: 1rem;
    color: #1e3c78;
    font-weight: 700;
    margin-bottom: 2px;
}

.guest-affiliation {
    font-size: 0.9rem;
    color: #666;
    font-weight: 500;
}

/* スタディポケット発表者 */
.studypocket-section {
    background: linear-gradient(135deg, #ffffff 0%, #f8fbff 100%);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 8px 30px rgba(30, 60, 120, 0.15);
    border: 2px solid #1e3c78;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    transition: all 0.3s ease;
}

.studypocket-section:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(30, 60, 120, 0.25);
}

.studypocket-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 15px;
    font-weight: 600;
    color: #1e3c78;
    font-size: 1rem;
}

.studypocket-header i {
    font-size: 1.1rem;
    color: #1e3c78;
}

.studypocket-presenters {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.presenter-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px;
    background: rgba(30, 60, 120, 0.05);
    border-radius: 10px;
    border: 1px solid rgba(30, 60, 120, 0.1);
    transition: all 0.3s ease;
}

.presenter-item:hover {
    background: rgba(30, 60, 120, 0.1);
    transform: translateX(3px);
}

.presenter-avatar {
    width: 40px;
    height: 40px;
    background: #1e3c78;
    border-radius: 50%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.9rem;
    overflow: hidden;
}

.presenter-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.presenter-info {
    flex: 1;
}

.presenter-role {
    font-size: 0.8rem;
    color: #666;
    font-weight: 500;
    margin-bottom: 2px;
}

.presenter-name {
    font-size: 0.95rem;
    color: #1e3c78;
    font-weight: 700;
}

/* セクション共通 */
section {
    padding: 80px 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-title {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 25px;
    background: linear-gradient(135deg, #1e3c78 0%, #0064c8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 900;
    letter-spacing: -0.02em;
}

.section-subtitle {
    text-align: center;
    color: #555;
    font-size: 1.2rem;
    margin-bottom: 60px;
    line-height: 1.8;
    font-weight: 500;
}

/* カンファレンスについて - ストーリーフロー型デザイン */
.about-section {
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    padding: 120px 0;
    position: relative;
    overflow: hidden;
}

/* 大きな問題提起 */
.main-question {
    text-align: center;
    margin-bottom: 100px;
    position: relative;
}

.question-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    background: linear-gradient(135deg, #1e3c78 0%, #0064c8 50%, #1e3c78 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 900;
    margin-bottom: 30px;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.question-description {
    font-size: 1.5rem;
    color: #555;
    line-height: 1.8;
    font-weight: 600;
}

/* ストーリーフロー */
.story-flow {
    display: flex;
    flex-direction: column;
    gap: 80px;
}

/* 各ストーリーセクション */
.story-section {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 60px;
    align-items: start;
    position: relative;
}

/* ストーリー背景 */
.story-background {
    position: sticky;
    top: 100px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.story-number {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, #dc0000 0%, #ff3333 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 3rem;
    box-shadow: 0 12px 40px rgba(220, 0, 0, 0.35);
    transition: all 0.3s ease;
}

.story-number:hover {
    transform: scale(1.05);
    box-shadow: 0 16px 50px rgba(220, 0, 0, 0.45);
}

.story-label {
    font-size: 2rem;
    font-weight: 800;
    color: #1e3c78;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ストーリーコンテンツ */
.story-content {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 20px;
    padding: 60px 50px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
    border-left: 5px solid #1e3c78;
    transition: all 0.3s ease;
}

.story-content:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.15);
}

.story-title {
    font-size: 2.5rem;
    color: #1e3c78;
    font-weight: 800;
    margin-bottom: 40px;
    line-height: 1.3;
}

/* 詳細アイテム */
.story-details {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.story-details .detail-item {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 30px;
    align-items: start;
}

.story-details .detail-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #1e3c78 0%, #2c4a8a 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    flex-shrink: 0;
    box-shadow: 0 4px 16px rgba(30, 60, 120, 0.25);
    transition: all 0.3s ease;
}

.story-details .detail-icon:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 24px rgba(30, 60, 120, 0.35);
}

.story-details .detail-text h4 {
    font-size: 1.5rem;
    color: #1e3c78;
    margin-bottom: 15px;
    font-weight: 700;
    text-align: left;
}

.story-details .detail-text p {
    font-size: 1.1rem;
    color: #666;
    line-height: 1.8;
    text-align: left;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.feature-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
    border: 2px solid #e2e8f0;
    border-top: 4px solid #1e3c78;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.15);
    border-color: #1e3c78;
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #1e3c78 0%, #2c4a8a 100%);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 1.8rem;
    box-shadow: 0 4px 16px rgba(30, 60, 120, 0.25);
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 8px 24px rgba(30, 60, 120, 0.35);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #1e3c78;
    font-weight: 700;
}

.feature-card p {
    color: #666;
    line-height: 1.8;
}

/* 実践報告登壇団体 */
.presenters-section {
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
}

/* アジェンダスタイル（縦並び） */
.presenters-agenda {
    max-width: 990px;
    margin: 60px auto 0;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.agenda-item {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 20px;
    padding: 35px;
    display: flex;
    align-items: flex-start;
    gap: 25px;
    position: relative;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid #e2e8f0;
}

/* デスクトップでの新HTML構造に対応（番号・写真・基本情報を横並び） */
.agenda-header {
    display: flex;
    align-items: center;
    gap: 20px;
}

.agenda-basic-info {
    display: flex;
    flex-direction: column;
    width: 250px;
    flex-shrink: 0;
}

.agenda-item:hover {
    transform: translateX(10px);
    box-shadow: 0 8px 30px rgba(30, 60, 120, 0.15);
    border-color: #1e3c78;
}

.agenda-number {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #1e3c78 0%, #2c4a8a 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: 900;
    box-shadow: 0 4px 15px rgba(30, 60, 120, 0.3);
}

.agenda-photo {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, #e8f4fd 0%, #dcebfa 100%);
    border: 3px solid #1e3c78;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(30, 60, 120, 0.2);
}

.agenda-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 山中先生の写真を引きで表示
.agenda-photo img[alt*="山中"] {
    object-fit: contain;
    transform: scale(0.9);
    background: white;
} */

.agenda-photo i {
    font-size: 2rem;
    color: #1e3c78;
    opacity: 0.5;
}

.agenda-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.agenda-region {
    display: inline-block;
    background: linear-gradient(135deg, #1e3c78 0%, #2c4a8a 100%);
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    width: fit-content;
    box-shadow: 0 2px 8px rgba(30, 60, 120, 0.3);
}

.agenda-school {
    font-size: 1.4rem;
    color: #1e3c78;
    font-weight: 900;
    margin: 5px 0;
    line-height: 1.3;
    letter-spacing: 0.5px;
}

.agenda-presenter {
    font-size: 1.25rem;
    color: #484848;
    font-weight: 600;
    margin-bottom: 8px;
}

.agenda-theme {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    background: linear-gradient(135deg, rgba(30, 60, 120, 0.08) 0%, rgba(30, 60, 120, 0.12) 100%);
    margin-left: -10px;
    padding: 18px 22px;
    border-radius: 10px;
    margin-top: 6px;
    box-shadow: 0 3px 12px rgba(30, 60, 120, 0.1);
    transition: all 0.3s ease;
}

.agenda-item:hover .agenda-theme {
    background: linear-gradient(135deg, rgba(30, 60, 120, 0.12) 0%, rgba(30, 60, 120, 0.15) 100%);
    box-shadow: 0 4px 16px rgba(30, 60, 120, 0.15);
    transform: translateX(5px);
}

.agenda-theme i {
    color: #1e3c78;
    font-size: 1.1rem;
    margin-top: 4px;
    flex-shrink: 0;
    opacity: 0.8;
}

.agenda-theme span {
    font-size: 1.25rem;
    color: #1e3c78;
    font-weight: 700;
    line-height: 1.7;
    letter-spacing: 0.3px;
}

/* ゲスト詳細プロフィール */
.guest-profile-section {
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    padding: 80px 0;
}

.profile-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 24px;
    padding: 50px;
    max-width: 1000px;
    margin: 60px auto 0;
    box-shadow: 0 8px 40px rgba(0,0,0,0.08);
    border: 2px solid #e2e8f0;
    display: flex;
    gap: 40px;
    align-items: flex-start;
}

.profile-photo {
    flex-shrink: 0;
    width: 120px;
    height: 120px;
    border-radius: 15px;
    overflow: hidden;
    border: 3px solid #1e3c78;
    box-shadow: 0 6px 20px rgba(30, 60, 120, 0.2);
}

.profile-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.profile-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.profile-name {
    font-size: 2.5rem;
    color: #1e3c78;
    font-weight: 900;
    margin-bottom: 15px;
    letter-spacing: 0.5px;
}

.profile-titles {
    display: flex;
    flex-direction: column;
    gap: 5px;
    margin-bottom: 25px;
}

.profile-title {
    color: #666;
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 3px;
}

.profile-bio {
    display: flex;
    flex-direction: column;
    gap: 18px;
    text-align: left;
}

.profile-bio p {
    color: #666;
    font-size: 1rem;
    line-height: 1.8;
    font-weight: 500;
}

/* プロフィール省略ボタン（デスクトップでは非表示） */
.bio-toggle {
    display: none;
}

/* PC版では詳細プロフィールを常に表示 */
@media (min-width: 769px) {
    .bio-details {
        display: block !important;
    }
}

/* 著書の特別スタイルは削除 */

.presenters-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 60px;
}

.presenter-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 20px;
    padding: 35px 25px;
    position: relative;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid #e2e8f0;
}

.presenter-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.15);
    border: 2px solid #1e3c78;
}

.presenter-region {
    position: absolute;
    top: 12px;
    right: 12px;
    background: linear-gradient(135deg, #1e3c78 0%, #2c4a8a 100%);
    color: white;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(30, 60, 120, 0.3);
}

.presenter-photo-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.presenter-photo {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg, #e8f4fd 0%, #dcebfa 100%);
    border: 3px solid #1e3c78;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(30, 60, 120, 0.2);
    transition: all 0.3s ease;
}

.presenter-photo i {
    font-size: 2.5rem;
    color: #1e3c78;
    opacity: 0.5;
}

.presenter-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.presenter-card:hover .presenter-photo {
    transform: scale(1.05);
    box-shadow: 0 6px 24px rgba(30, 60, 120, 0.3);
}

.presenter-icon {
    font-size: 2.5rem;
    margin-bottom: 18px;
    color: #1e3c78;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.presenter-name {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 5px;
    font-weight: 500;
    line-height: 1.4;
}

.school-name {
    font-size: 1.5rem;
    color: #1e3c78;
    font-weight: 700;
    display: block;
    margin-top: 5px;
}

.presenter-label {
    display: inline-block;
    background: #f0f0f0;
    padding: 5px 15px;
    border-radius: 15px;
    font-size: 0.9rem;
    color: #666;
    margin: 15px 0;
    font-weight: 500;
}

.presenter-desc {
    color: #666;
    line-height: 1.6;
    font-size: 0.95rem;
    margin-bottom: 15px;
}

.presenter-tag {
    color: #1e3c78;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* プログラム */
.program-section {
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 60px auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, #dc0000 0%, #ff3333 50%, #dc0000 100%);
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    padding: 20px 0 20px 100px;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.timeline-item.fade-in {
    opacity: 1;
    transform: translateY(0);
}

/* シンプルなフェードインアニメーション */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.timeline-time {
    position: absolute;
    left: 5px;
    top: 50%;
    transform: translateY(-50%);
    background: linear-gradient(135deg, #dc0000 0%, #ff3333 100%);
    color: white;
    padding: 8px 12px;
    border-radius: 25px;
    font-weight: 700;
    font-size: 1.05rem;
    width: 90px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(220, 0, 0, 0.3);
    z-index: 2;
}


.timeline-content {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
    margin-left: 30px;
    border: 2px solid #e2e8f0;
    transition: all 0.3s ease;
}

.timeline-content:hover {
    transform: translateX(5px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
    border-color: #1e3c78;
}

.timeline-content.highlight {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}

.timeline-content h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    color: #1e3c78;
    font-weight: 700;
}

.timeline-content p {
    color: #666;
    line-height: 1.6;
    font-size: 0.95rem;
}

.school-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

/* タイムテーブル注意書き */
.timeline-notice {
    margin-top: 30px;
    text-align: center;
    padding: 15px 20px;
    background: rgba(30, 60, 120, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(30, 60, 120, 0.1);
}

.timeline-notice p {
    margin: 0;
    font-size: 0.85rem;
    color: #666;
    line-height: 1.5;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.timeline-notice i {
    color: #1e3c78;
    font-size: 0.9rem;
}

/* パネルディスカッション詳細 */
.panel-discussion-details {
    margin-top: 15px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.panel-participants,
.panel-moderator {
    background: rgba(30, 60, 120, 0.05);
    padding: 18px 20px;
    border-radius: 12px;
}

.panel-participants h4,
.panel-moderator h4 {
    font-size: 1.1rem;
    color: #1e3c78;
    font-weight: 700;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.panel-participants p {
    margin: 0;
    color: #666;
    font-size: 1rem;
    line-height: 1.6;
}

.moderator-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.moderator-name {
    font-size: 1.1rem;
    color: #1e3c78;
    font-weight: 700;
}

.moderator-titles {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.moderator-title {
    font-size: 0.9rem;
    color: #666;
    font-weight: 500;
}

.school-tag {
    background: linear-gradient(135deg, #1e3c78 0%, #2c4a8a 100%);
    color: white;
    padding: 4px 10px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(30, 60, 120, 0.25);
}

/* プレゼンテーション詳細 */
.presentation-details {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.presentation-item {
    padding: 15px;
    background: rgba(30, 60, 120, 0.05);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.presentation-item:hover {
    background: rgba(30, 60, 120, 0.1);
}

.presentation-content {
    width: 100%;
}

.presentation-content h4 {
    font-size: 1rem;
    color: #1e3c78;
    font-weight: 700;
    margin-bottom: 8px;
    line-height: 1.4;
}

.presentation-speaker {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #666;
    font-size: 0.9rem;
    font-weight: 600;
}

.presentation-speaker i {
    color: #1e3c78;
    font-size: 0.9rem;
}

/* 開催概要 */
.details-section {
    background: linear-gradient(135deg, #1e3c78 0%, #2c4a8a 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.details-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(0, 100, 200, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.details-section .section-title,
.details-section .section-subtitle {
    color: white !important;
    background: none !important;
    -webkit-background-clip: initial !important;
    background-clip: initial !important;
    -webkit-text-fill-color: white !important;
}

.details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.detail-item {
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    padding: 35px 25px;
    border-radius: 20px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.detail-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.4);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.detail-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(10px);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #1e3c78;
    transition: all 0.3s ease;
}

.detail-item:hover .detail-icon {
    transform: scale(1.1) rotate(5deg);
    background: rgba(255,255,255,0.3);
    color: #1e3c78;
}

.detail-item h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    font-weight: 700;
}

.detail-item p {
    opacity: 0.9;
    line-height: 1.6;
}

/* フッター */
.footer {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: white;
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 50%, rgba(30, 60, 120, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 70% 50%, rgba(220, 0, 0, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.footer-content {
    max-width: 600px;
    margin: 0 auto;
}

.footer-logo {
    margin-bottom: 20px;
}

.footer-logo-img {
    height: 45px;
    width: auto;
    filter: brightness(0) invert(1);
    opacity: 0.9;
    transition: all 0.3s ease;
}

.footer-logo-img:hover {
    opacity: 1;
    transform: scale(1.05);
}

.footer-text {
    margin-bottom: 30px;
    opacity: 0.8;
    font-size: 1.1rem;
}

.footer-cta {
    margin-bottom: 40px;
    display: flex;
    gap: 15px;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}

.footer .cta-button {
    display: inline-block;
    padding: 18px 50px;
    background: linear-gradient(135deg, #1e3c78 0%, #2c4a8a 100%);
    color: white;
    text-decoration: none;
    border-radius: 15px;
    font-weight: 800;
    font-size: 1.1rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
    position: relative;
    overflow: hidden;
}

.footer .cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.footer .cta-button:hover::before {
    left: 100%;
}

.footer .cta-button:hover {
    background: linear-gradient(135deg, #2c4a8a 0%, #1e3c78 100%);
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 16px 40px rgba(0,0,0,0.4);
}

.footer .cta-button.secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.footer .cta-button.secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 16px 40px rgba(255, 255, 255, 0.1);
}

.footer-url {
    margin-top: 20px;
    opacity: 0.8;
    font-size: 0.9rem;
}

.copyright {
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid rgba(255,255,255,0.1);
    opacity: 0.6;
    font-size: 0.9rem;
}

/* お申し込みフォームセクション */
.form-section {
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 50%, #f8fafc 100%);
    padding: 100px 0;
    position: relative;
}

/* メディア申込リンクのスタイル */
.media-application-link {
    text-align: center;
    margin: 20px 0 40px 0;
}

.media-application-link p {
    font-size: 0.9rem;
    color: #666;
    margin: 0;
}

.media-application-link a {
    color: #1e3c78;
    text-decoration: none;
    border-bottom: 1px solid #1e3c78;
    transition: all 0.3s ease;
    font-weight: 500;
}

.media-application-link a:hover {
    color: #0f2347;
    border-bottom-color: #0f2347;
}

.form-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-top: 60px;
    align-items: start;
}

.form-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
    position: sticky;
    top: 100px;
    align-self: flex-start;
}

.info-item {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    padding: 20px;
    border-radius: 20px;
    border: 2px solid #e2e8f0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    text-align: center;
}

.info-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
    border-color: #1e3c78;
}

.info-icon {
    width: 45px;
    height: 45px;
    margin: 0 auto 15px;
    background: linear-gradient(135deg, #1e3c78 0%, #2c4a8a 100%);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    box-shadow: 0 4px 16px rgba(30, 60, 120, 0.25);
}

.info-item h3 {
    font-size: 1.2rem;
    color: #1e3c78;
    font-weight: 700;
    margin-bottom: 10px;
}

.info-item p {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.6;
}

.form-wrapper {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 25px;
    padding: 40px;
    box-shadow: 0 8px 40px rgba(0,0,0,0.1);
    border: 2px solid #e2e8f0;
}

.form-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #e2e8f0;
}

.form-header i {
    font-size: 1.8rem;
    color: #1e3c78;
}

.form-header h3 {
    font-size: 1.5rem;
    color: #1e3c78;
    font-weight: 800;
}

.hubspot-form-placeholder {
    position: relative;
}

/* HubSpot フォームのスタイリング */
.hubspot-form-container {
    position: relative;
    padding: 20px 0;
}

/* HubSpotフォームのカスタマイズ */
.hubspot-form-container .hs-form {
    font-family: 'Noto Sans JP', sans-serif !important;
}

.hubspot-form-container .hs-form-field {
    margin-bottom: 20px !important;
}

.hubspot-form-container .hs-form-field label {
    font-weight: 600 !important;
    color: #333 !important;
    font-size: 0.95rem !important;
    margin-bottom: 8px !important;
    display: block !important;
}

.hubspot-form-container .hs-input {
    width: 100% !important;
    padding: 14px 18px !important;
    border: 2px solid #e2e8f0 !important;
    border-radius: 12px !important;
    font-size: 1rem !important;
    font-family: 'Noto Sans JP', sans-serif !important;
    transition: all 0.3s ease !important;
    background: white !important;
}

.hubspot-form-container .hs-input:focus {
    outline: none !important;
    border-color: #1e3c78 !important;
    box-shadow: 0 0 0 3px rgba(30, 60, 120, 0.1) !important;
}

.hubspot-form-container textarea.hs-input {
    resize: vertical !important;
    min-height: 100px !important;
}

.hubspot-form-container .hs-button {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    padding: 18px 40px !important;
    background: linear-gradient(135deg, #1e3c78 0%, #2c4a8a 100%) !important;
    color: white !important;
    border: none !important;
    border-radius: 15px !important;
    font-size: 1.2rem !important;
    font-weight: 800 !important;
    cursor: pointer !important;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1) !important;
    box-shadow: 0 8px 25px rgba(30, 60, 120, 0.3) !important;
    margin-top: 10px !important;
    font-family: 'Noto Sans JP', sans-serif !important;
}

.hubspot-form-container .hs-button:hover {
    transform: translateY(-3px) !important;
    box-shadow: 0 12px 35px rgba(30, 60, 120, 0.4) !important;
}

.hubspot-form-container .hs-button:active {
    transform: translateY(-1px) !important;
}

.hubspot-form-container .hs-error-msgs {
    list-style: none !important;
    padding: 0 !important;
    margin: 5px 0 0 0 !important;
}

.hubspot-form-container .hs-error-msg {
    color: #dc0000 !important;
    font-size: 0.85rem !important;
    margin-top: 5px !important;
}

.application-form {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 600;
    color: #333;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.required {
    color: #dc0000;
    font-size: 0.85rem;
    font-weight: 700;
    background: rgba(220, 0, 0, 0.1);
    padding: 2px 8px;
    border-radius: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 14px 18px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    font-family: 'Noto Sans JP', sans-serif;
    transition: all 0.3s ease;
    background: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #1e3c78;
    box-shadow: 0 0 0 3px rgba(30, 60, 120, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-notice {
    display: flex;
    gap: 10px;
    padding: 15px;
    background: rgba(30, 60, 120, 0.05);
    border-radius: 12px;
    border-left: 4px solid #1e3c78;
}

.form-notice i {
    color: #1e3c78;
    font-size: 1.2rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.form-notice p {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.6;
    margin: 0;
}

.submit-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 18px 40px;
    background: linear-gradient(135deg, #1e3c78 0%, #2c4a8a 100%);
    color: white;
    border: none;
    border-radius: 15px;
    font-size: 1.2rem;
    font-weight: 800;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 25px rgba(30, 60, 120, 0.3);
    margin-top: 10px;
    font-family: 'Noto Sans JP', sans-serif;
}

.submit-button:hover {
    background: linear-gradient(135deg, #2c4a8a 0%, #1e3c78 100%);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 35px rgba(30, 60, 120, 0.4);
}

.submit-button:active {
    transform: translateY(-1px) scale(1);
}

.submit-button i {
    font-size: 1.1rem;
}

.form-note {
    margin-top: 25px;
    padding: 20px;
    background: rgba(220, 0, 0, 0.05);
    border-radius: 12px;
    border: 2px dashed rgba(220, 0, 0, 0.3);
    text-align: center;
}

.form-note p {
    color: #666;
    font-size: 0.9rem;
    margin: 5px 0;
}

.form-note strong {
    color: #dc0000;
}

/* 固定CTA */
.sticky-cta {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.sticky-cta.visible {
    opacity: 1;
}

.sticky-cta-content {
    background: linear-gradient(135deg, rgba(30, 60, 120, 0.98) 0%, rgba(44, 74, 138, 0.98) 100%);
    backdrop-filter: blur(15px);
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 20px;
    padding: 18px 30px;
    display: flex;
    align-items: center;
    gap: 25px;
    box-shadow: 0 12px 35px rgba(0,0,0,0.3);
    transition: all 0.3s ease;
}

.sticky-cta-content:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 45px rgba(0,0,0,0.4);
}

.sticky-date {
    color: white;
    font-size: 0.9rem;
    font-weight: 500;
}

.sticky-button {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    color: #1e3c78;
    padding: 12px 25px;
    border-radius: 15px;
    text-decoration: none;
    font-weight: 800;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.sticky-button:hover {
    transform: scale(1.08);
    box-shadow: 0 8px 20px rgba(0,0,0,0.3);
    background: linear-gradient(135deg, #ffffff 0%, #ffffff 100%);
}

/* フォームセクション レスポンシブ */
@media (max-width: 1024px) {
    .form-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .form-info {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
        position: static;
        top: auto;
    }
}

@media (max-width: 768px) {
    .form-section {
        padding: 60px 0;
    }
    
    .form-info {
        grid-template-columns: 1fr;
        position: static;
        top: auto;
        gap: 10px;
    }
    
    /* 3つの情報を控えめに表示 */
    .info-item {
        padding: 15px 20px !important;
        background: rgba(30, 60, 120, 0.03) !important;
        border: 1px solid rgba(30, 60, 120, 0.1) !important;
        box-shadow: none !important;
    }
    
    .info-item:hover {
        transform: none !important;
        box-shadow: none !important;
    }
    
    .info-icon {
        width: 35px !important;
        height: 35px !important;
        font-size: 1rem !important;
        margin-bottom: 8px !important;
        background: rgba(30, 60, 120, 0.1) !important;
        box-shadow: none !important;
    }
    
    .info-item h3 {
        font-size: 0.9rem !important;
        margin-bottom: 5px !important;
    }
    
    .info-item p {
        font-size: 0.8rem !important;
        line-height: 1.4 !important;
        color: #777 !important;
    }
    
    .form-wrapper {
        padding: 30px 20px;
    }
    
    .form-header h3 {
        font-size: 1.2rem;
    }
    
    .submit-button {
        width: 100%;
        padding: 16px 30px;
        font-size: 1.1rem;
    }

    .footer-cta {
        display: none;
    }
    
    .footer-url {
        display: none;
    }
    
    .footer-text {
        font-size: 1rem;
        margin-bottom: 20px;
    }
}

/* レスポンシブ */
@media (max-width: 768px) {
    .hero-logo {
        margin-bottom: 20px;
    }
    
    .logo-img {
        height: 40px;
        width: auto;
        max-width: 85%;
        object-fit: contain;
    }

    .hero::after {
        width: 60px;
        height: 60px;
    }

    .floating-elements::before {
        width: 40px;
        height: 40px;
    }

    .floating-elements::after {
        width: 30px;
        height: 30px;
    }

    .hero {
        padding: 10px 10px 60px;
    }
    
    .hero-content {
        max-width: 100%;
        padding: 0 5px;
    }
    
    .hero-container {
        padding: 10px;
    }

    /* about-section スマホ最適化 */
    .about-section {
        padding: 40px 0;
    }

    p.subtitle {
        font-size: 1rem;
    }

    .target-audience p {
        font-size: 1rem;
    }
    
    .main-question {
        margin-bottom: 30px;
    }

    .question-title {
        font-size: 1.6rem;
        margin-bottom: 10px;
        white-space: nowrap;
    }

    .question-description {
        font-size: 1rem;
        line-height: 1.5;
    }
    
    .question-description br {
        display: none;
    }

    .story-flow {
        gap: 20px;
    }

    .story-section {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .story-background {
        position: static;
        flex-direction: row;
        justify-content: flex-start;
        gap: 12px;
        margin-bottom: 10px;
    }

    .story-number {
        width: 45px;
        height: 45px;
        font-size: 1.2rem;
        flex-shrink: 0;
    }

    .story-label {
        font-size: 1.4rem;
        align-self: center;
    }

    .story-content {
        padding: 25px 20px;
        margin-left: 0;
    }

    .story-title {
        font-size: 1.3rem;
        margin-bottom: 15px;
    }

    .story-details {
        gap: 12px;
    }

    .story-details .detail-item {
        grid-template-columns: 35px 1fr;
        gap: 10px;
        align-items: flex-start;
        background: none;
        box-shadow: none;
        border: none;
        padding: 0;
    }

    .story-details .detail-icon {
        width: 35px;
        height: 35px;
        font-size: 1.1rem;
        margin-top: 2px;
    }

    .story-details .detail-text h4 {
        font-size: 1rem;
        margin-top: 8px;
        margin-bottom: 6px;
    }

    .story-details .detail-text p {
        font-size: 0.9rem;
        line-height: 1.5;
    }
    
    /* セクションタイトルのスマホ最適化 */
    .section-title {
        font-size: 2rem;
        line-height: 1.2;
        white-space: nowrap;
    }
    
    .section-subtitle {
        font-size: 1rem;
        line-height: 1.4;
    }

    .conference-badge {
        font-size: 0.8rem;
        padding: 6px 16px;
    }

    .main-title {
        font-size: 1.8rem;
        line-height: 1.2;
    }
    
    .title-line1 {
        display: block;
        margin-bottom: 8px;
    }
    
    .title-line2 {
        display: block;
    }

    .subtitle {
        font-size: 1.1rem;
    }

    .event-details {
        flex-direction: column;
        gap: 20px;
        align-items: center;
    }

    .event-date {
        padding: 12px 20px;
    }

    .date-main {
        font-size: 2rem;
    }

    .event-time,
    .event-format {
        padding: 10px 16px;
        font-size: 1rem;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }

    .cta-button {
        width: 100%;
        max-width: 300px;
        justify-content: center;
        padding: 15px 30px;
        font-size: 1rem;
    }

    .speakers-layout {
        grid-template-columns: 1fr;
        gap: 30px;
        margin-top: 30px;
    }

    .speakers-left {
        padding: 25px 20px;
    }

    .speakers-right {
        gap: 25px;
        height: auto;
    }

    .speakers-right > * {
        flex: none;
    }

    .guest-section,
    .studypocket-section {
        padding: 20px;
    }

    .speaker-item {
        padding: 12px;
    }

    .speaker-avatar {
        width: 45px;
        height: 45px;
        font-size: 1rem;
    }

    .speaker-school {
        font-size: 0.9rem;
    }

    .speaker-name {
        font-size: 1rem;
    }

    .guest-info {
        padding: 10px;
    }

    .guest-avatar {
        width: 40px;
        height: 40px;
        font-size: 0.9rem;
    }

    .guest-role {
        font-size: 0.8rem;
    }

    .guest-name {
        font-size: 0.95rem;
    }

    .guest-affiliation {
        font-size: 0.85rem;
    }

    .presenter-item {
        padding: 10px;
    }

    .presenter-avatar {
        width: 35px;
        height: 35px;
        font-size: 0.8rem;
    }

    .presenter-role {
        font-size: 0.75rem;
    }

    .presenter-name {
        font-size: 0.9rem;
    }

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

    /* アジェンダスタイルのレスポンシブ対応 - 横レイアウト */
    .presenters-agenda {
        gap: 15px;
    }

    .agenda-item {
        flex-direction: column;
        margin-bottom: 4px;
        padding: 20px 15px;
        gap: 0;
        align-items: flex-start;
        position: relative;
        min-height: auto;
    }

    .agenda-item:hover {
        transform: translateY(-2px);
    }

    /* 上部エリア：番号、写真、基本情報 */
    .agenda-header {
        display: flex;
        align-items: flex-start;
        gap: 12px;
        width: 100%;
        position: relative;
        margin-bottom: 10px;
    }

    .agenda-number {
        width: 35px;
        height: 35px;
        font-size: 1rem;
        flex-shrink: 0;
    }

    .agenda-photo {
        width: 50px;
        height: 50px;
        flex-shrink: 0;
    }

    .agenda-photo i {
        font-size: 1.3rem;
    }

    .agenda-basic-info {
        flex: 1;
        position: relative;
    }

    .agenda-region {
        position: absolute;
        top: -25px;
        right: 0;
        font-size: 0.7rem;
        padding: 3px 8px;
    }

    .agenda-school {
        font-size: 1rem;
        margin-top: 2px;
        margin-bottom: 4px;
        line-height: 1.3;
        margin-right: 40px;
    }

    .agenda-presenter {
        font-size: 0.85rem;
        margin-bottom: 0;
        color: #585858;
        font-weight: 500;
        display: block;
        margin-top: 3px;
    }

    /* 下部エリア：発表テーマ */
    .agenda-theme {
        padding: 8px 10px;
        margin: 10px 0 0 0;
        background: rgba(30, 60, 120, 0.06);
        border-radius: 8px;
        width: 100%;
        border: none;
    }

    .agenda-theme i {
        font-size: 0.8rem;
        margin-right: 6px;
        color: #1e3c78;
    }

    .agenda-theme span {
        font-size: 0.85rem;
        line-height: 1.4;
        font-weight: 600;
        color: #1e3c78;
    }

    /* プロフィールカードのレスポンシブ対応 */
    .profile-card {
        flex-direction: column;
        padding: 30px 25px;
        gap: 25px;
        text-align: center;
    }

    .profile-photo {
        width: 100px;
        height: 100px;
        margin: 0 auto;
    }

    .profile-name {
        font-size: 2rem;
    }

    .profile-title {
        font-size: 0.9rem;
        line-height: 1.4;
        margin-bottom: 3px;
    }
    
    .profile-titles {
        margin-bottom: 20px;
    }

    .profile-bio p {
        font-size: 0.95rem;
        line-height: 1.7;
    }
    
    /* プロフィール省略機能（スマホのみ） */
    .bio-toggle {
        display: block;
        background: linear-gradient(135deg, #1e3c78 0%, #2c4a8a 100%);
        color: white;
        border: none;
        border-radius: 12px;
        padding: 12px 20px;
        font-size: 0.9rem;
        font-weight: 600;
        margin-top: 15px;
        cursor: pointer;
        transition: all 0.3s ease;
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        font-family: 'Noto Sans JP', sans-serif;
    }
    
    .bio-toggle:hover {
        background: linear-gradient(135deg, #2c4a8a 0%, #1e3c78 100%);
        transform: translateY(-2px);
    }
    
    .toggle-icon {
        transition: transform 0.3s ease;
    }
    
    .bio-toggle.expanded .toggle-icon {
        transform: rotate(180deg);
    }
    
    .bio-details {
        text-align: left;
        margin-top: 15px;
        transition: all 0.3s ease;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }
    
    /* 開催概要セクションをスマホで非表示 */
    .details-section {
        display: none;
    }
    
    /* セクションの上下余白を削減 */
    .presenters-section,
    .guest-profile-section,
    .program-section {
        padding: 40px 0;
    }
    
    /* セクション間の境界を明確化 */
    .presenters-section {
        background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
        border-bottom: 1px solid #e2e8f0;
    }
    
    .guest-profile-section {
        background: #ffffff;
        border-bottom: 1px solid #e2e8f0;
    }
    
    .program-section {
        background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
        border-bottom: 1px solid #e2e8f0;
    }
    
    .form-section {
        border-top: 2px solid #1e3c78;
    }

    .timeline::before {
        left: 18px;
    }

    .timeline-item {
        padding-left: 50px;
    }

    .timeline-time {
        width: 45px;
        font-size: 0.75rem;
        padding: 5px 6px;
        left: 2px;
        border-radius: 20px;
    }

    .timeline-content {
        margin-left: 5px;
    }

    .presentation-content h4 {
        font-size: 0.9rem;
    }

    .presentation-speaker {
        font-size: 0.85rem;
    }

    .sticky-cta {
        left: 0;
        right: 0;
        margin: 0 auto;
        transform: none;
        width: min(360px, calc(100% - 24px));
    }

    .sticky-cta-content {
        flex-direction: column;
        gap: 8px;
        padding: 12px 20px;
        width: 100%;
        box-sizing: border-box;
        border-radius: 24px;
    }

    .sticky-date {
        font-size: 0.75rem;
        text-align: center;
    }

    .sticky-button {
        padding: 10px 20px;
        font-size: 0.9rem;
        font-weight: 700;
        border-radius: 20px;
    }
}

/* アニメーション */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* モーション軽減対応 */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { 
        animation-duration: 0.001ms !important; 
        animation-iteration-count: 1 !important; 
        transition-duration: 0.001ms !important; 
    }
}