/* ==========================================
   グローバルスタイル
   ========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* カラーパレット：危機感を演出するダークカラー */
    --danger-red: #ff0000;
    --warning-orange: #ff6b00;
    --alert-yellow: #ffd700;
    --dark-bg: #0a0a0a;
    --dark-gray: #1a1a1a;
    --medium-gray: #2a2a2a;
    --light-gray: #3a3a3a;
    --text-white: #ffffff;
    --text-gray: #cccccc;
    --accent-blue: #00bfff;
    --success-green: #00ff88;
    
    /* フォント */
    --font-main: 'Noto Sans JP', sans-serif;
    
    /* シャドウ */
    --shadow-strong: 0 10px 40px rgba(255, 0, 0, 0.3);
    --shadow-medium: 0 5px 20px rgba(0, 0, 0, 0.5);
    --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.3);
    
    /* グラデーション */
    --gradient-danger: linear-gradient(135deg, #ff0000 0%, #ff6b00 100%);
    --gradient-dark: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    --gradient-alert: linear-gradient(135deg, #ff6b00 0%, #ffd700 100%);
}

body {
    font-family: var(--font-main);
    background-color: var(--dark-bg);
    color: var(--text-white);
    line-height: 1.8;
    overflow-x: hidden;
}

/* コンテナ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 20px;
    background: var(--gradient-danger);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-title i {
    -webkit-text-fill-color: var(--danger-red);
    margin-right: 10px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-gray);
}

/* ==========================================
   ヒーローセクション
   ========================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: var(--gradient-dark);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 0, 0, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 107, 0, 0.1) 0%, transparent 50%);
    animation: pulse-bg 8s ease-in-out infinite;
}

@keyframes pulse-bg {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(10, 10, 10, 0.8) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 40px 20px;
}

.warning-badge {
    display: inline-block;
    background: var(--gradient-danger);
    color: var(--text-white);
    padding: 10px 30px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 30px;
    box-shadow: var(--shadow-strong);
}

.warning-badge i {
    margin-right: 8px;
}

.pulse {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.3;
    margin-bottom: 30px;
    text-shadow: 0 0 20px rgba(255, 0, 0, 0.5);
}

.hero-title .highlight {
    background: var(--gradient-danger);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-gray);
    margin-bottom: 50px;
}

.text-danger {
    color: var(--danger-red);
    font-weight: 700;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin: 50px 0;
    flex-wrap: wrap;
}

.stat-item {
    background: var(--medium-gray);
    padding: 30px;
    border-radius: 15px;
    min-width: 200px;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.stat-item:hover {
    border-color: var(--danger-red);
    transform: translateY(-5px);
    box-shadow: var(--shadow-strong);
}

.stat-number {
    font-size: 3rem;
    font-weight: 900;
    background: var(--gradient-danger);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-gray);
}

/* ==========================================
   CTAボタン
   ========================================== */
.cta-button {
    display: inline-block;
    padding: 18px 40px;
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: none;
    border-radius: 50px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    box-shadow: var(--shadow-medium);
}

.cta-primary {
    background: var(--gradient-danger);
    color: var(--text-white);
}

.cta-primary:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: var(--shadow-strong);
}

.cta-danger {
    background: var(--danger-red);
    color: var(--text-white);
}

.cta-large {
    padding: 20px 50px;
    font-size: 1.2rem;
    width: 100%;
}

.cta-button i {
    margin-right: 10px;
}

/* ==========================================
   脅威の実態セクション
   ========================================== */
.threats-reality {
    background: var(--dark-gray);
}

.threat-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.threat-card {
    background: var(--medium-gray);
    padding: 30px;
    border-radius: 15px;
    border: 2px solid var(--light-gray);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.threat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-danger);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.threat-card:hover::before {
    transform: scaleX(1);
}

.threat-card:hover {
    transform: translateY(-10px);
    border-color: var(--danger-red);
    box-shadow: var(--shadow-strong);
}

.threat-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2rem;
}

.threat-icon-ransomware {
    background: linear-gradient(135deg, #ff0000 0%, #ff4444 100%);
}

.threat-icon-email {
    background: linear-gradient(135deg, #ff6b00 0%, #ff9944 100%);
}

.threat-icon-insider {
    background: linear-gradient(135deg, #ffd700 0%, #ffee44 100%);
}

.threat-icon-ddos {
    background: linear-gradient(135deg, #ff0066 0%, #ff4488 100%);
}

.threat-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    text-align: center;
}

.threat-stats {
    text-align: center;
    margin-bottom: 20px;
}

.threat-number {
    display: inline-block;
    background: var(--gradient-danger);
    color: var(--text-white);
    padding: 8px 20px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.9rem;
}

.threat-description {
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 20px;
}

.threat-description strong {
    color: var(--text-white);
}

.threat-impact {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.impact-tag {
    background: var(--light-gray);
    color: var(--danger-red);
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* ==========================================
   タイムラインセクション
   ========================================== */
.damage-timeline {
    background: var(--dark-bg);
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--gradient-danger);
    transform: translateX(-50%);
}

.timeline-item {
    margin-bottom: 60px;
    position: relative;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-right: 50%;
    padding-right: 50px;
    text-align: right;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: 50%;
    padding-left: 50px;
}

.timeline-time {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    background: var(--medium-gray);
    color: var(--warning-orange);
    padding: 8px 20px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.9rem;
    white-space: nowrap;
    z-index: 2;
    border: 2px solid var(--danger-red);
}

.timeline-content {
    background: var(--medium-gray);
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--shadow-medium);
    border: 2px solid var(--light-gray);
    transition: all 0.3s ease;
}

.timeline-content:hover {
    border-color: var(--danger-red);
    transform: scale(1.02);
    box-shadow: var(--shadow-strong);
}

.timeline-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.timeline-item:nth-child(odd) .timeline-icon {
    margin-left: auto;
}

.timeline-icon-start { background: linear-gradient(135deg, #00bfff 0%, #0088cc 100%); }
.timeline-icon-spread { background: linear-gradient(135deg, #ffd700 0%, #ffaa00 100%); }
.timeline-icon-attack { background: linear-gradient(135deg, #ff6b00 0%, #ff4400 100%); }
.timeline-icon-chaos { background: linear-gradient(135deg, #ff0000 0%, #cc0000 100%); }
.timeline-icon-damage { background: linear-gradient(135deg, #ff0066 0%, #cc0044 100%); }
.timeline-icon-end { background: linear-gradient(135deg, #660000 0%, #330000 100%); }

.timeline-content h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--warning-orange);
}

.timeline-content p {
    color: var(--text-gray);
    line-height: 1.8;
}

.timeline-content strong {
    color: var(--text-white);
}

.warning-box {
    background: var(--medium-gray);
    border: 3px solid var(--danger-red);
    border-radius: 15px;
    padding: 30px;
    margin-top: 40px;
    text-align: center;
    font-size: 1.1rem;
    line-height: 1.8;
}

.warning-box i {
    color: var(--danger-red);
    font-size: 2rem;
    display: block;
    margin-bottom: 20px;
}

.warning-box strong {
    font-size: 1.3rem;
    display: block;
    margin-bottom: 15px;
}

/* ==========================================
   エンドポイントセクション
   ========================================== */
.endpoint-target {
    background: var(--dark-gray);
}

.endpoint-explanation {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.endpoint-diagram {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.endpoint-center {
    position: absolute;
    width: 120px;
    height: 120px;
    background: var(--gradient-danger);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    z-index: 2;
    box-shadow: 0 0 40px rgba(255, 0, 0, 0.5);
}

.endpoint-center span {
    font-size: 0.7rem;
    margin-top: 5px;
    font-weight: 700;
}

.endpoint-device {
    position: absolute;
    width: 100px;
    height: 100px;
    background: var(--medium-gray);
    border: 2px solid var(--danger-red);
    border-radius: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    animation: float 3s ease-in-out infinite;
}

.endpoint-device-1 {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.endpoint-device-2 {
    top: 10%;
    right: 10%;
    animation-delay: 0.5s;
}

.endpoint-device-3 {
    bottom: 10%;
    left: 10%;
    animation-delay: 1s;
}

.endpoint-device-4 {
    bottom: 10%;
    right: 10%;
    animation-delay: 1.5s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.endpoint-label {
    font-size: 0.7rem;
    margin-top: 5px;
    font-weight: 700;
}

.attack-arrow {
    position: absolute;
    bottom: -30px;
    font-size: 0.7rem;
    color: var(--warning-orange);
    white-space: nowrap;
}

.endpoint-reasons {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.reason-card {
    background: var(--medium-gray);
    padding: 25px;
    border-radius: 15px;
    border-left: 4px solid var(--danger-red);
    transition: all 0.3s ease;
}

.reason-card:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-medium);
}

.reason-number {
    display: inline-block;
    width: 40px;
    height: 40px;
    background: var(--gradient-danger);
    border-radius: 50%;
    text-align: center;
    line-height: 40px;
    font-weight: 900;
    margin-bottom: 15px;
}

.reason-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.reason-card p {
    color: var(--text-gray);
    line-height: 1.8;
}

.infection-routes {
    list-style: none;
    margin-top: 15px;
}

.infection-routes li {
    padding: 8px 0;
    color: var(--text-gray);
}

.infection-routes i {
    color: var(--danger-red);
    margin-right: 10px;
}

/* ==========================================
   ゼロトラストセクション
   ========================================== */
.zero-trust {
    background: var(--dark-bg);
}

.comparison-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

.comparison-old,
.comparison-new {
    background: var(--medium-gray);
    border-radius: 15px;
    overflow: hidden;
}

.comparison-label {
    padding: 20px;
    text-align: center;
    font-weight: 700;
    font-size: 1.2rem;
}

.comparison-label-old {
    background: linear-gradient(135deg, #666666 0%, #444444 100%);
}

.comparison-label-new {
    background: var(--gradient-danger);
}

.comparison-label i {
    margin-right: 10px;
}

.comparison-content {
    padding: 30px;
}

.boundary-box {
    background: var(--light-gray);
    padding: 30px;
    border-radius: 10px;
    margin: 20px 0;
    text-align: center;
}

.boundary-label {
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--warning-orange);
}

.safe-zone,
.danger-zone {
    display: flex;
    justify-content: center;
    gap: 20px;
    font-size: 2rem;
}

.firewall-line {
    background: var(--warning-orange);
    color: var(--dark-bg);
    padding: 15px;
    text-align: center;
    font-weight: 700;
    margin: 20px 0;
    border-radius: 5px;
}

.comparison-problems h4,
.comparison-benefits h4 {
    margin: 30px 0 15px;
    font-size: 1.1rem;
}

.comparison-problems ul,
.comparison-benefits ul {
    list-style: none;
}

.comparison-problems li {
    padding: 8px 0;
    color: var(--text-gray);
    position: relative;
    padding-left: 25px;
}

.comparison-problems li::before {
    content: '✗';
    position: absolute;
    left: 0;
    color: var(--danger-red);
    font-weight: 900;
}

.comparison-benefits li {
    padding: 8px 0;
    color: var(--text-gray);
    position: relative;
    padding-left: 25px;
}

.comparison-benefits li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-green);
    font-weight: 900;
}

.zerotrust-diagram {
    position: relative;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.zerotrust-center {
    position: absolute;
    width: 120px;
    height: 120px;
    background: var(--gradient-danger);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    z-index: 2;
    box-shadow: 0 0 40px rgba(255, 0, 0, 0.5);
}

.zerotrust-center span {
    font-size: 0.7rem;
    margin-top: 5px;
    font-weight: 700;
}

.zerotrust-device {
    position: absolute;
    width: 90px;
    height: 90px;
    background: var(--medium-gray);
    border: 2px solid var(--success-green);
    border-radius: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    animation: float 3s ease-in-out infinite;
}

.zerotrust-device:nth-child(2) {
    top: 0;
    left: 50%;
    transform: translateX(-50%);
}

.zerotrust-device:nth-child(3) {
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    animation-delay: 0.5s;
}

.zerotrust-device:nth-child(4) {
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    animation-delay: 1s;
}

.zerotrust-device:nth-child(5) {
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    animation-delay: 1.5s;
}

.verify-badge {
    position: absolute;
    bottom: -20px;
    background: var(--success-green);
    color: var(--dark-bg);
    padding: 3px 10px;
    border-radius: 10px;
    font-size: 0.6rem;
    font-weight: 900;
}

.zerotrust-necessity {
    background: var(--medium-gray);
    border: 3px solid var(--danger-red);
    border-radius: 15px;
    padding: 40px;
    text-align: center;
}

.zerotrust-necessity h3 {
    font-size: 1.8rem;
    margin-bottom: 30px;
}

.necessity-text {
    font-size: 1.2rem;
    line-height: 2;
}

.highlight-box {
    background: var(--gradient-danger);
    color: var(--text-white);
    padding: 5px 15px;
    border-radius: 5px;
    font-weight: 900;
    font-size: 1.3rem;
}

/* ==========================================
   セキュリティソリューションセクション
   ========================================== */
.security-solutions {
    background: var(--dark-gray);
}

.defense-layers {
    max-width: 1000px;
    margin: 0 auto;
}

.defense-layer {
    background: var(--medium-gray);
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 40px;
    border: 2px solid var(--light-gray);
}

.layer-header {
    padding: 30px;
    text-align: center;
}

.layer-utm {
    background: linear-gradient(135deg, #00bfff 0%, #0066cc 100%);
}

.layer-edr {
    background: linear-gradient(135deg, #ff6b00 0%, #cc3300 100%);
}

.layer-badge {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.layer-number,
.layer-timing {
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 20px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.9rem;
}

.layer-title {
    font-size: 2rem;
    margin-bottom: 10px;
}

.layer-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
}

.layer-content {
    padding: 40px;
}

.utm-diagram,
.edr-process {
    display: flex;
    justify-content: space-around;
    align-items: center;
    margin: 30px 0;
    flex-wrap: wrap;
    gap: 20px;
}

.utm-threats,
.utm-firewall,
.utm-network {
    text-align: center;
    padding: 20px;
    background: var(--light-gray);
    border-radius: 15px;
    min-width: 150px;
}

.utm-threats i,
.utm-firewall i,
.utm-network i {
    font-size: 2.5rem;
    margin-bottom: 10px;
    display: block;
}

.utm-threats i {
    color: var(--danger-red);
}

.utm-firewall i {
    color: var(--accent-blue);
}

.utm-network i {
    color: var(--success-green);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.feature-item {
    background: var(--light-gray);
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.feature-item i {
    font-size: 2rem;
    color: var(--accent-blue);
    margin-bottom: 10px;
    display: block;
}

.feature-item strong {
    display: block;
    margin-bottom: 8px;
    color: var(--text-white);
}

.feature-item p {
    font-size: 0.9rem;
    color: var(--text-gray);
}

.layer-benefits {
    margin-top: 30px;
}

.layer-benefits h4 {
    font-size: 1.2rem;
    margin-bottom: 15px;
}

.layer-benefits ul {
    list-style: none;
}

.layer-benefits li {
    padding: 10px 0;
    padding-left: 30px;
    position: relative;
    color: var(--text-gray);
}

.layer-benefits li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-green);
    font-weight: 900;
    font-size: 1.2rem;
}

.defense-arrow {
    text-align: center;
    padding: 30px 0;
    color: var(--warning-orange);
}

.defense-arrow i {
    font-size: 2rem;
    display: block;
    margin: 10px 0;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(20px); }
}

.arrow-text {
    display: block;
    font-weight: 700;
    font-size: 1.1rem;
    margin: 15px 0;
}

.edr-process {
    background: var(--light-gray);
    padding: 30px;
    border-radius: 15px;
}

.edr-step {
    text-align: center;
    flex: 1;
    min-width: 150px;
}

.edr-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 15px;
}

.edr-detect { background: linear-gradient(135deg, #00bfff 0%, #0088cc 100%); }
.edr-isolate { background: linear-gradient(135deg, #ffd700 0%, #ffaa00 100%); }
.edr-investigate { background: linear-gradient(135deg, #ff6b00 0%, #ff4400 100%); }
.edr-restore { background: linear-gradient(135deg, #00ff88 0%, #00cc66 100%); }

.edr-step span {
    display: block;
    font-weight: 700;
    margin-bottom: 5px;
    color: var(--text-white);
}

.edr-step p {
    font-size: 0.9rem;
    color: var(--text-gray);
}

.edr-arrow {
    color: var(--danger-red);
    font-size: 1.5rem;
}

.edr-threats {
    margin-top: 40px;
}

.edr-threats h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
}

.threat-examples {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.threat-example {
    background: var(--light-gray);
    padding: 20px;
    border-radius: 10px;
    border-left: 4px solid var(--danger-red);
}

.threat-example strong {
    display: block;
    color: var(--warning-orange);
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.threat-example p {
    color: var(--text-gray);
    line-height: 1.8;
}

.integration-necessity {
    margin-top: 60px;
}

.necessity-box {
    background: var(--medium-gray);
    border: 3px solid var(--danger-red);
    border-radius: 20px;
    padding: 40px;
}

.necessity-box h3 {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 40px;
}

.necessity-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 40px;
}

.necessity-point {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.necessity-icon {
    width: 60px;
    height: 60px;
    background: var(--danger-red);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    flex-shrink: 0;
}

.necessity-text h4 {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.necessity-text p {
    color: var(--text-gray);
    line-height: 1.8;
}

.necessity-conclusion {
    background: var(--light-gray);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
}

.necessity-conclusion i {
    font-size: 3rem;
    color: var(--accent-blue);
    margin-bottom: 20px;
}

.necessity-conclusion p {
    font-size: 1.2rem;
    line-height: 2;
}

.text-primary {
    color: var(--accent-blue);
}

.cost-comparison {
    margin-top: 60px;
    background: var(--medium-gray);
    padding: 40px;
    border-radius: 15px;
}

.cost-comparison h3 {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 30px;
}

.cost-table {
    border-radius: 10px;
    overflow: hidden;
}

.cost-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 20px;
    padding: 20px;
    border-bottom: 1px solid var(--light-gray);
}

.cost-header {
    background: var(--light-gray);
    font-weight: 700;
}

.cost-recommended {
    background: linear-gradient(135deg, rgba(255, 107, 0, 0.1) 0%, rgba(255, 0, 0, 0.1) 100%);
    border: 2px solid var(--danger-red);
    border-radius: 10px;
    margin-top: 10px;
}

.cost-cell {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.cost-cell strong {
    display: block;
    margin-bottom: 5px;
}

.cost-cell span {
    font-size: 0.9rem;
    color: var(--text-gray);
}

.cost-high {
    color: var(--danger-red);
    font-weight: 700;
}

.cost-low {
    color: var(--success-green);
    font-weight: 700;
}

.discount {
    background: var(--success-green);
    color: var(--dark-bg);
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.8rem;
    font-weight: 700;
    margin-top: 5px;
    display: inline-block;
}

.recommend-badge {
    background: var(--gradient-danger);
    color: var(--text-white);
    padding: 5px 15px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 700;
    margin-top: 5px;
    display: inline-block;
}

.cost-note {
    margin-top: 30px;
    text-align: center;
    color: var(--text-gray);
    font-size: 0.95rem;
}

.cost-note i {
    color: var(--accent-blue);
    margin-right: 8px;
}

/* ==========================================
   緊急理由セクション
   ========================================== */
.urgent-reasons {
    background: var(--dark-bg);
}

.urgent-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.urgent-card {
    background: var(--medium-gray);
    padding: 30px;
    border-radius: 15px;
    border: 2px solid var(--light-gray);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.urgent-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: var(--gradient-danger);
    opacity: 0;
    transition: opacity 0.3s ease;
    transform: rotate(45deg);
}

.urgent-card:hover::before {
    opacity: 0.1;
}

.urgent-card:hover {
    transform: translateY(-10px) rotateY(5deg);
    border-color: var(--danger-red);
    box-shadow: var(--shadow-strong);
}

.urgent-number {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: var(--gradient-danger);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 1.5rem;
}

.urgent-icon {
    width: 80px;
    height: 80px;
    background: var(--light-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--warning-orange);
    margin: 0 auto 20px;
}

.urgent-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    text-align: center;
}

.urgent-stat {
    text-align: center;
    background: var(--gradient-danger);
    color: var(--text-white);
    padding: 10px 20px;
    border-radius: 20px;
    font-weight: 700;
    margin-bottom: 20px;
    display: inline-block;
    width: 100%;
}

.urgent-card p {
    color: var(--text-gray);
    line-height: 1.8;
}

.risk-calculator {
    background: var(--medium-gray);
    border: 3px solid var(--warning-orange);
    border-radius: 15px;
    padding: 40px;
}

.risk-calculator h3 {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 15px;
}

.calculator-desc {
    text-align: center;
    color: var(--text-gray);
    margin-bottom: 30px;
}

.risk-checklist {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 15px;
    margin-bottom: 30px;
}

.risk-item {
    background: var(--light-gray);
    padding: 15px 20px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.risk-item:hover {
    background: var(--medium-gray);
    transform: translateX(5px);
}

.risk-checkbox {
    width: 24px;
    height: 24px;
    cursor: pointer;
}

.risk-item span {
    flex: 1;
    color: var(--text-white);
}

.risk-result {
    background: var(--light-gray);
    padding: 40px;
    border-radius: 15px;
    margin-top: 30px;
    border: 3px solid var(--danger-red);
}

.risk-result-content {
    text-align: center;
}

.risk-level {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 20px;
}

.risk-message {
    font-size: 1.2rem;
    line-height: 2;
    margin-bottom: 30px;
    color: var(--text-gray);
}

/* ==========================================
   事例セクション
   ========================================== */
.case-studies {
    background: var(--dark-gray);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.case-card {
    background: var(--medium-gray);
    border-radius: 15px;
    overflow: hidden;
    border: 2px solid var(--light-gray);
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-10px);
    border-color: var(--danger-red);
    box-shadow: var(--shadow-strong);
}

.case-header {
    background: var(--gradient-danger);
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.case-industry,
.case-damage {
    font-weight: 700;
}

.case-title {
    padding: 20px 20px 10px;
    font-size: 1.3rem;
    color: var(--warning-orange);
}

.case-timeline {
    padding: 0 20px 20px;
}

.case-event {
    padding: 15px;
    margin-bottom: 10px;
    background: var(--light-gray);
    border-radius: 10px;
    border-left: 4px solid var(--danger-red);
}

.case-event strong {
    color: var(--warning-orange);
    display: block;
    margin-bottom: 8px;
}

.case-prevention {
    padding: 20px;
    background: var(--light-gray);
    border-top: 2px solid var(--success-green);
}

.case-prevention strong {
    display: block;
    margin-bottom: 10px;
    color: var(--success-green);
}

.prevention-tag {
    background: var(--success-green);
    color: var(--dark-bg);
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 0.85rem;
    font-weight: 700;
    display: inline-block;
    margin-right: 8px;
    margin-top: 8px;
}

/* ==========================================
   SIPO強みセクション
   ========================================== */
.sipo-strengths {
    background: var(--dark-bg);
}

.strengths-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.strength-card {
    background: var(--medium-gray);
    padding: 30px;
    border-radius: 15px;
    border: 2px solid var(--light-gray);
    transition: all 0.3s ease;
}

.strength-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-blue);
    box-shadow: 0 10px 40px rgba(0, 191, 255, 0.3);
}

.strength-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent-blue) 0%, #0088cc 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 20px;
}

.strength-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    text-align: center;
    color: var(--accent-blue);
}

.strength-card p {
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 15px;
}

.strength-example {
    background: var(--light-gray);
    padding: 15px;
    border-radius: 10px;
    border-left: 4px solid var(--success-green);
    font-weight: 700;
    color: var(--success-green);
    margin-top: 15px;
}

.strength-logos {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 15px;
}

.strength-logos span {
    background: var(--light-gray);
    padding: 8px 12px;
    border-radius: 5px;
    font-size: 0.9rem;
    color: var(--text-gray);
}

.sipo-promise {
    background: var(--medium-gray);
    border: 3px solid var(--accent-blue);
    border-radius: 15px;
    padding: 40px;
}

.sipo-promise h3 {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 30px;
    color: var(--accent-blue);
}

.promise-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.promise-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: var(--light-gray);
    border-radius: 10px;
}

.promise-item i {
    color: var(--success-green);
    font-size: 1.5rem;
}

/* ==========================================
   お問い合わせセクション
   ========================================== */
.contact-section {
    background: var(--dark-gray);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 40px;
}

.contact-benefits h3 {
    font-size: 1.5rem;
    margin-bottom: 25px;
    color: var(--accent-blue);
}

.benefits-list {
    list-style: none;
    margin-bottom: 30px;
}

.benefits-list li {
    padding: 20px;
    margin-bottom: 15px;
    background: var(--medium-gray);
    border-radius: 10px;
    border-left: 4px solid var(--accent-blue);
    transition: all 0.3s ease;
}

.benefits-list li:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-medium);
}

.benefits-list i {
    color: var(--success-green);
    margin-right: 10px;
    font-size: 1.2rem;
}

.benefits-list strong {
    display: block;
    color: var(--text-white);
    margin-bottom: 8px;
    font-size: 1.1rem;
}

.benefits-list span {
    color: var(--text-gray);
    font-size: 0.95rem;
}

.contact-guarantee {
    background: var(--light-gray);
    padding: 20px;
    border-radius: 10px;
    display: flex;
    gap: 15px;
    border: 2px solid var(--success-green);
}

.contact-guarantee i {
    color: var(--success-green);
    font-size: 2rem;
    flex-shrink: 0;
}

.contact-guarantee strong {
    display: block;
    color: var(--success-green);
    margin-bottom: 8px;
}

.contact-guarantee p {
    color: var(--text-gray);
    line-height: 1.6;
}

.contact-form-wrapper {
    background: var(--medium-gray);
    padding: 40px;
    border-radius: 15px;
}

.contact-form {
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 700;
    color: var(--text-white);
}

.form-group label i {
    color: var(--accent-blue);
    margin-right: 8px;
}

.required {
    background: var(--danger-red);
    color: var(--text-white);
    padding: 2px 8px;
    border-radius: 3px;
    font-size: 0.75rem;
    font-weight: 700;
    margin-left: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    background: var(--light-gray);
    border: 2px solid var(--light-gray);
    border-radius: 8px;
    color: var(--text-white);
    font-size: 1rem;
    font-family: var(--font-main);
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    background: var(--medium-gray);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.checkbox-group {
    margin-top: 20px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
}

.checkbox-label a {
    color: var(--accent-blue);
    text-decoration: underline;
}

.form-note {
    text-align: center;
    color: var(--text-gray);
    font-size: 0.9rem;
    margin-top: 20px;
}

.form-note i {
    color: var(--accent-blue);
    margin-right: 8px;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.contact-info-item {
    background: var(--light-gray);
    padding: 20px;
    border-radius: 10px;
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.contact-info-item i {
    color: var(--accent-blue);
    font-size: 1.5rem;
}

.contact-info-item strong {
    display: block;
    margin-bottom: 5px;
    color: var(--text-white);
}

.contact-info-item p {
    color: var(--text-gray);
    font-size: 0.95rem;
}

.contact-info-item a {
    color: var(--accent-blue);
    text-decoration: underline;
}

/* ==========================================
   フッター
   ========================================== */
.footer {
    background: var(--dark-bg);
    border-top: 2px solid var(--danger-red);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--accent-blue);
}

.footer-section h4 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--warning-orange);
}

.footer-section p {
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 20px;
}

.footer-link {
    display: inline-block;
    color: var(--accent-blue);
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s ease;
}

.footer-link:hover {
    color: var(--warning-orange);
    transform: translateX(5px);
}

.footer-link i {
    margin-right: 8px;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    padding: 8px 0;
    color: var(--text-gray);
    position: relative;
    padding-left: 20px;
}

.footer-section li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--danger-red);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--light-gray);
}

.footer-bottom p {
    color: var(--text-gray);
    margin-bottom: 10px;
}

.footer-disclaimer {
    font-size: 0.85rem;
    color: var(--text-gray);
}

/* ==========================================
   ページトップボタン
   ========================================== */
.page-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: var(--gradient-danger);
    border: none;
    border-radius: 50%;
    color: var(--text-white);
    font-size: 1.5rem;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-strong);
    z-index: 1000;
    transition: all 0.3s ease;
}

.page-top:hover {
    transform: translateY(-5px) scale(1.1);
}

.page-top.show {
    display: flex;
}

/* ==========================================
   アニメーション用クラス
   ========================================== */
[data-aos] {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos].aos-animate {
    opacity: 1;
}

[data-aos="fade-up"].aos-animate {
    transform: translateY(0);
}

[data-aos="fade-up"] {
    transform: translateY(30px);
}

[data-aos="fade-down"].aos-animate {
    transform: translateY(0);
}

[data-aos="fade-down"] {
    transform: translateY(-30px);
}

[data-aos="fade-left"].aos-animate {
    transform: translateX(0);
}

[data-aos="fade-left"] {
    transform: translateX(30px);
}

[data-aos="fade-right"].aos-animate {
    transform: translateX(0);
}

[data-aos="fade-right"] {
    transform: translateX(-30px);
}

[data-aos="zoom-in"].aos-animate {
    transform: scale(1);
}

[data-aos="zoom-in"] {
    transform: scale(0.9);
}

[data-aos="flip-left"] {
    transform: perspective(1000px) rotateY(20deg);
}

[data-aos="flip-left"].aos-animate {
    transform: perspective(1000px) rotateY(0);
}

/* ==========================================
   レスポンシブデザイン
   ========================================== */
@media (max-width: 1024px) {
    .section-title {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .endpoint-explanation,
    .comparison-container,
    .contact-wrapper,
    .necessity-content {
        grid-template-columns: 1fr;
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        margin: 0;
        padding: 30px;
        padding-left: 80px;
        text-align: left;
    }
    
    .timeline-time {
        left: 30px;
        transform: none;
    }
    
    .timeline-item:nth-child(odd) .timeline-icon {
        margin-left: 0;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-stats {
        flex-direction: column;
        align-items: stretch;
    }
    
    .stat-item {
        min-width: auto;
    }
    
    .threat-cards,
    .urgent-grid,
    .strengths-grid,
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .cost-row {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .page-top {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .cta-button {
        padding: 15px 30px;
        font-size: 1rem;
    }
    
    .endpoint-device,
    .zerotrust-device {
        width: 70px;
        height: 70px;
        font-size: 1.5rem;
    }
}