@charset "UTF-8";

:root {
    --neon-green: #22c55e;
    --neon-pink: #ec4899;
    --neon-yellow: #fbbf24;
    --neon-cyan: #00f0ff;
    --neon-purple: #a855f7;
    --bg-dark: #0a0f1a;
    --glass: rgba(15, 23, 42, 0.55);
    --glass-border: rgba(148, 163, 184, 0.18);
    /* ボックス背景を明るく - 紺色系グラデーション */
    --card-bg: linear-gradient(145deg,
            rgba(30, 41, 70, 0.95),
            rgba(20, 30, 55, 0.9));
    --card-bg-solid: rgba(25, 35, 60, 0.95);
    --card-border: rgba(100, 150, 255, 0.3);
    --card-border-hover: rgba(100, 181, 246, 0.6);
    --text-primary: #f8fafc;
    --text-secondary: #d4e0ed;
    --claude-orange: #ff6b35;
    --gemini-blue: #4285f4;
    --chatgpt-green: #10a37f;
}

/* =========================================
   AI CARDS - GLOBAL (for practical-body pages)
   ========================================= */
.practical-body .ai-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.practical-body .ai-card {
    background: #1e293b;
    border: 2px solid #334155;
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.practical-body .ai-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.practical-body .ai-card.claude {
    border-color: var(--claude-orange);
}

.practical-body .ai-card.gemini {
    border-color: var(--gemini-blue);
}

.practical-body .ai-card.chatgpt {
    border-color: var(--chatgpt-green);
}

.practical-body .ai-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.practical-body .ai-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 900;
    color: white;
    flex-shrink: 0;
}

.practical-body .ai-card.claude .ai-icon {
    background: linear-gradient(135deg, #ff6b35, #ff8f66);
}

.practical-body .ai-card.gemini .ai-icon {
    background: linear-gradient(135deg, #4285f4, #60a5fa);
}

.practical-body .ai-card.chatgpt .ai-icon {
    background: linear-gradient(135deg, #10a37f, #34d399);
}

.practical-body .ai-name {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
}

.practical-body .ai-card.claude .ai-name {
    color: var(--claude-orange);
}

.practical-body .ai-card.gemini .ai-name {
    color: var(--gemini-blue);
}

.practical-body .ai-card.chatgpt .ai-name {
    color: var(--chatgpt-green);
}

.practical-body .ai-company {
    font-size: 0.8rem;
    color: #94a3b8;
}

.practical-body .ai-version {
    font-size: 0.75rem;
    color: #64748b;
}

.practical-body .ai-desc {
    font-size: 0.9rem;
    color: #cbd5e1;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.practical-body .ai-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.practical-body .ai-tag {
    font-size: 0.75rem;
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    font-weight: 600;
}

.practical-body .ai-card.claude .ai-tag {
    background: rgba(255, 107, 53, 0.2);
    color: var(--claude-orange);
}

.practical-body .ai-card.gemini .ai-tag {
    background: rgba(66, 133, 244, 0.2);
    color: var(--gemini-blue);
}

.practical-body .ai-card.chatgpt .ai-tag {
    background: rgba(16, 163, 127, 0.2);
    color: var(--chatgpt-green);
}

/* AI Cards Responsive */
@media (max-width: 1024px) {
    .practical-body .ai-cards {
        grid-template-columns: 1fr;
    }
}

/* =========================================
   COMPARE TABLE - GLOBAL (for practical-body pages)
   ========================================= */
.practical-body .compare-table {
    width: 100%;
    border-collapse: collapse;
    background: #1e293b;
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.practical-body .compare-table th,
.practical-body .compare-table td {
    padding: 0.75rem 1rem;
    text-align: center;
    border-bottom: 1px solid #334155;
    font-size: 0.9rem;
}

.practical-body .compare-table th {
    background: rgba(0, 0, 0, 0.3);
    color: #94a3b8;
    font-weight: 600;
}

.practical-body .compare-table th:first-child,
.practical-body .compare-table td:first-child {
    text-align: left;
}

.practical-body .compare-table td:first-child {
    color: #cbd5e1;
}

.practical-body .compare-table .best {
    color: #64b5f6;
    font-weight: 700;
}

.practical-body .compare-table .good {
    color: #22c55e;
}

.practical-body .compare-table .normal {
    color: #94a3b8;
}

.practical-body .compare-table tr:hover {
    background: rgba(100, 181, 246, 0.05);
}

/* =========================================
   SECURITY PAGE STYLES - GLOBAL (for practical-body pages)
   ========================================= */

/* Hero Security */
.practical-body .hero-security {
    text-align: center;
    margin-bottom: 2.5rem;
    padding: 2rem;
    background: #1e293b;
    border: 1px solid #334155;
    border-radius: 12px;
}

.practical-body .hero-title {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-weight: 900;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.practical-body .hero-subtitle {
    color: #94a3b8;
}

/* Golden Rules */
.practical-body .golden-rules {
    margin-bottom: 2.5rem;
}

.practical-body .rules-title {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-weight: 700;
    color: #f59e0b;
}

.practical-body .rules-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.practical-body .rule-card {
    background: #1e293b;
    border: 2px solid #ef4444;
    border-radius: 16px;
    padding: 1.5rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.practical-body .rule-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #ef4444, #f59e0b);
}

.practical-body .rule-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(239, 68, 68, 0.3);
}

.practical-body .rule-number {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-weight: 900;
    color: #ef4444;
    opacity: 0.3;
    position: absolute;
    top: 10px;
    right: 15px;
}

.practical-body .rule-title {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-weight: 700;
    color: #ef4444;
}

.practical-body .rule-desc {
    color: #cbd5e1;
}

/* OK/NG Section */
.practical-body .okng-section {
    margin-bottom: 2.5rem;
}

.practical-body .okng-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.practical-body .okng-card {
    background: #1e293b;
    border: 1px solid #334155;
    border-radius: 12px;
    overflow: hidden;
}

.practical-body .okng-header {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.practical-body .okng-header.ok {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.15), rgba(34, 197, 94, 0.05));
    border-bottom: 2px solid #22c55e;
}

.practical-body .okng-header.ng {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.15), rgba(239, 68, 68, 0.05));
    border-bottom: 2px solid #ef4444;
}

.practical-body .okng-badge {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-weight: 900;
}

.practical-body .okng-badge.ok {
    color: #22c55e;
}

.practical-body .okng-badge.ng {
    color: #ef4444;
}

.practical-body .okng-label {
    font-weight: 700;
    color: var(--text-primary);
}

.practical-body .okng-list {
    list-style: none;
    padding: 1.5rem;
}

.practical-body .okng-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid #334155;
    color: #cbd5e1;
}

.practical-body .okng-list li:last-child {
    border-bottom: none;
}

/* Anonymization Section */
.practical-body .anon-section {
    margin-bottom: 2.5rem;
}

.practical-body .anon-container {
    background: #1e293b;
    border: 1px solid #334155;
    border-radius: 12px;
    padding: 1.5rem;
}

.practical-body .anon-example {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #334155;
}

.practical-body .anon-example:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.practical-body .anon-box {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    padding: 1rem;
    line-height: 1.8;
}

.practical-body .anon-box.before {
    border: 2px solid #ef4444;
}

.practical-body .anon-box.after {
    border: 2px solid #22c55e;
}

.practical-body .anon-label {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-weight: 700;
    margin-bottom: 0.5rem;
    display: block;
}

.practical-body .anon-label.before {
    color: #ef4444;
}

.practical-body .anon-label.after {
    color: #22c55e;
}

.practical-body .highlight-bad {
    background: rgba(239, 68, 68, 0.3);
    padding: 0.1rem 0.3rem;
    border-radius: 4px;
    color: #fca5a5;
}

.practical-body .highlight-good {
    background: rgba(34, 197, 94, 0.3);
    padding: 0.1rem 0.3rem;
    border-radius: 4px;
    color: #86efac;
}

/* Emergency Box */
.practical-body .emergency-box {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1), rgba(239, 68, 68, 0.05));
    border: 2px solid #ef4444;
    border-radius: 12px;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.practical-body .emergency-box::before {
    content: "⚠️";
    position: absolute;
    font-size: 6rem;
    opacity: 0.1;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
}

.practical-body .emergency-title {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-weight: 700;
    color: #ef4444;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.practical-body .emergency-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.practical-body .emergency-step {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    padding: 1.25rem;
    text-align: center;
}

.practical-body .step-number {
    width: 36px;
    height: 36px;
    background: #ef4444;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-weight: 900;
    margin: 0 auto 0.75rem;
}

.practical-body .step-title {
    font-weight: 700;
    color: var(--text-primary);
}

.practical-body .step-desc {
    color: #94a3b8;
}

/* Checklist */
.practical-body .checklist-section {
    margin-bottom: 2.5rem;
}

.practical-body .checklist-container {
    background: #1e293b;
    border: 1px solid #334155;
    border-radius: 12px;
    padding: 1.5rem;
}

.practical-body .checklist-title {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-weight: 700;
    color: var(--neon-cyan);
}

.practical-body .checklist {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.practical-body .checklist li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    transition: all 0.3s ease;
    cursor: pointer;
    color: #cbd5e1;
}

.practical-body .checklist li:hover {
    background: rgba(100, 181, 246, 0.1);
}

.practical-body .checklist li.checked .checkbox {
    background: #22c55e;
    border-color: #ffffff;
}

.practical-body .checklist li.checked .checkbox::after {
    content: "✓";
    color: #000000;
    font-weight: bold;
}

.practical-body .checkbox {
    width: 22px;
    height: 22px;
    border: 2px solid var(--neon-cyan);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

/* Security Page Responsive */
@media (max-width: 1024px) {
    .practical-body .rules-grid {
        grid-template-columns: 1fr;
    }

    .practical-body .okng-grid {
        grid-template-columns: 1fr;
    }

    .practical-body .emergency-steps {
        grid-template-columns: 1fr;
    }

    .practical-body .checklist {
        grid-template-columns: 1fr;
    }
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Noto Sans JP", sans-serif;
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    background: #0a0f1a;
    /* Hardcoded Dark Background */
}

/* ===== ANIMATED BACKGROUND ===== */
.bg-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
    background: transparent;
}

.bg-gradient {
    position: absolute;
    width: 200%;
    height: 200%;
    top: -50%;
    left: -50%;
    z-index: 1;
    background:
        radial-gradient(circle at 20% 30%,
            rgba(100, 181, 246, 0.15) 0%,
            transparent 40%),
        radial-gradient(circle at 80% 70%,
            rgba(100, 181, 246, 0.15) 0%,
            transparent 40%),
        radial-gradient(circle at 50% 50%,
            rgba(34, 197, 94, 0.1) 0%,
            transparent 50%);
    animation: gradientRotate 40s linear infinite;
    filter: blur(60px);
}

@keyframes gradientRotate {
    0% {
        transform: rotate(0deg) scale(1);
    }

    50% {
        transform: rotate(180deg) scale(1.1);
    }

    100% {
        transform: rotate(360deg) scale(1);
    }
}

.bg-grid {
    position: absolute;
    width: 200%;
    height: 200%;
    z-index: 2;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: gridMove 30s linear infinite;
    mask-image: radial-gradient(circle at center, black 40%, transparent 80%);
}

@keyframes gridMove {
    0% {
        transform: translate(0, 0) perspective(500px) rotateX(10deg);
    }

    100% {
        transform: translate(-60px, -60px) perspective(500px) rotateX(10deg);
    }
}

/* PARTICLE NETWORK CANVAS */
#particleCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 3;
    pointer-events: auto;
}

/* ORBS - FLYING PARTICLES STYLE (Legacy - not used with particle network) */
.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(4px);
    z-index: 3;
    mix-blend-mode: screen;
    will-change: transform, opacity;
    pointer-events: none;
    display: none; /* Hidden when using particle network */
}

/* Small floating orbs - rising from bottom */
.orb-1 {
    width: 12px;
    height: 12px;
    background: radial-gradient(circle, rgba(100, 181, 246, 0.9), transparent 70%);
    bottom: -20px;
    left: 10%;
    animation: riseOrb 8s linear infinite;
    animation-delay: 0s;
}

.orb-2 {
    width: 10px;
    height: 10px;
    background: radial-gradient(circle, rgba(100, 181, 246, 0.9), transparent 70%);
    bottom: -20px;
    left: 25%;
    animation: riseOrb 10s linear infinite;
    animation-delay: 1.5s;
}

.orb-3 {
    width: 14px;
    height: 14px;
    background: radial-gradient(circle, rgba(34, 197, 94, 0.9), transparent 70%);
    bottom: -20px;
    left: 40%;
    animation: riseOrb 9s linear infinite;
    animation-delay: 3s;
}

.orb-4 {
    width: 11px;
    height: 11px;
    background: radial-gradient(circle, rgba(100, 181, 246, 0.8), transparent 70%);
    bottom: -20px;
    left: 55%;
    animation: riseOrb 11s linear infinite;
    animation-delay: 2s;
}

.orb-5 {
    width: 13px;
    height: 13px;
    background: radial-gradient(circle, rgba(100, 181, 246, 0.8), transparent 70%);
    bottom: -20px;
    left: 70%;
    animation: riseOrb 9.5s linear infinite;
    animation-delay: 4s;
}

.orb-6 {
    width: 9px;
    height: 9px;
    background: radial-gradient(circle, rgba(34, 197, 94, 0.85), transparent 70%);
    bottom: -20px;
    left: 85%;
    animation: riseOrb 10.5s linear infinite;
    animation-delay: 1s;
}

.orb-7 {
    width: 12px;
    height: 12px;
    background: radial-gradient(circle, rgba(100, 181, 246, 0.85), transparent 70%);
    bottom: -20px;
    left: 15%;
    animation: riseOrb 12s linear infinite;
    animation-delay: 5s;
}

.orb-8 {
    width: 10px;
    height: 10px;
    background: radial-gradient(circle, rgba(100, 181, 246, 0.9), transparent 70%);
    bottom: -20px;
    left: 32%;
    animation: riseOrb 8.5s linear infinite;
    animation-delay: 2.5s;
}

.orb-9 {
    width: 15px;
    height: 15px;
    background: radial-gradient(circle, rgba(34, 197, 94, 0.8), transparent 70%);
    bottom: -20px;
    left: 48%;
    animation: riseOrb 11.5s linear infinite;
    animation-delay: 3.5s;
}

.orb-10 {
    width: 11px;
    height: 11px;
    background: radial-gradient(circle, rgba(100, 181, 246, 0.9), transparent 70%);
    bottom: -20px;
    left: 63%;
    animation: riseOrb 9s linear infinite;
    animation-delay: 4.5s;
}

.orb-11 {
    width: 13px;
    height: 13px;
    background: radial-gradient(circle, rgba(100, 181, 246, 0.85), transparent 70%);
    bottom: -20px;
    left: 78%;
    animation: riseOrb 10s linear infinite;
    animation-delay: 0.5s;
}

.orb-12 {
    width: 10px;
    height: 10px;
    background: radial-gradient(circle, rgba(34, 197, 94, 0.9), transparent 70%);
    bottom: -20px;
    left: 92%;
    animation: riseOrb 11s linear infinite;
    animation-delay: 5.5s;
}

/* Rising orb animation - from bottom to top */
@keyframes riseOrb {
    0% {
        transform: translateY(0) translateX(0) scale(0.8);
        opacity: 0;
    }
    10% {
        opacity: 0.8;
    }
    50% {
        transform: translateY(-50vh) translateX(20px) scale(1);
        opacity: 0.9;
    }
    80% {
        opacity: 0.7;
    }
    100% {
        transform: translateY(-100vh) translateX(-15px) scale(0.6);
        opacity: 0;
    }
}

/* ===== TERM TOOLTIP - Base Style ===== */
.term {
    position: relative;
    display: inline;
    cursor: help;
    color: var(--neon-cyan);
    border-bottom: 1px dotted var(--neon-cyan);
    text-decoration: none;
}

.term::after {
    content: attr(data-desc);
    position: absolute;
    bottom: calc(100% + 10px);
    left: 0;
    right: auto;
    transform: scale(0.9);
    background: rgba(10, 15, 30, 0.98);
    /* 非常に濃い背景 */
    color: #fff;
    padding: 0.8rem 1rem;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 400;
    line-height: 1.6;
    width: max-content;
    max-width: min(300px, 90vw);
    white-space: normal;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--neon-cyan);
    /* 細い枠線 */
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    z-index: 10000;
    /* 最前面 */
    pointer-events: none;
}

.term::before {
    content: "";
    position: absolute;
    bottom: calc(100% + 4px);
    left: 12px;
    border: 6px solid transparent;
    border-top-color: var(--neon-cyan);
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    z-index: 10000;
}

.term:hover::after {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
}

.term:hover::before {
    opacity: 1;
    visibility: visible;
}

/* ===== HEADER - ロゴを大きく明確に ===== */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0.4rem 1rem;
    /* further reduced height */
    /* reduced height */
    background: linear-gradient(180deg,
            rgba(10, 15, 30, 0.98),
            rgba(10, 15, 30, 0.95));
    backdrop-filter: blur(20px);
    border-bottom: 2px solid rgba(100, 181, 246, 0.3);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* ロゴエリア - 大きく・わかりやすく */
.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
}

.logo-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #64b5f6, #64b5f6);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-weight: 900;
    font-size: 1.4rem;
    color: white;
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.4);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.logo-text-area {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}

.logo-main {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-size: 1.5rem;
    font-weight: 900;
    color: #ffffff;
    letter-spacing: 0.05em;
    line-height: 1.2;
}

.logo-main .highlight {
    color: #64b5f6;
}

.logo-sub {
    font-size: 0.7rem;
    color: var(--text-secondary);
    letter-spacing: 0.15em;
}

.company-badge {
    font-family: "Noto Sans JP", sans-serif;
    font-size: 0.95rem;
    font-weight: 700;
    color: white;
    padding: 0.6rem 1.5rem;
    background: linear-gradient(135deg,
            rgba(0, 200, 255, 0.25),
            rgba(140, 80, 220, 0.25));
    border: 2px solid rgba(100, 181, 246, 0.5);
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(100, 181, 246, 0.2);
}

/* ===== MAIN ===== */
main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 1.5rem 2.5rem;
}

/* ===== HERO - COMPACT ===== */
.hero {
    text-align: center;
    padding: 0.75rem 0 0.5rem;
    min-height: 35vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 1rem;
    background: rgba(100, 181, 246, 0.15);
    border: 2px solid var(--neon-cyan);
    border-radius: 100px;
    font-size: 0.8rem;
    color: var(--neon-cyan);
    font-weight: 600;
    margin-bottom: 0.6rem;
    box-shadow: 0 4px 20px rgba(100, 181, 246, 0.2);
}



.hero-title-line {
    display: block;
}

.typing-container {
    display: inline-block;
    position: relative;
}

.typing-text {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 900;
    line-height: 1.3;
    background: linear-gradient(90deg, #ffffff, #ffd700, #ff69b4, #ffffff);
    background-size: 300% auto;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradientShift 6s linear infinite;
    filter: drop-shadow(0 0 20px rgba(255, 255, 255, 0.6)) drop-shadow(0 0 40px rgba(255, 215, 0, 0.4));
}

@keyframes gradientShift {
    0% {
        background-position: 0% center;
    }

    100% {
        background-position: 300% center;
    }
}

.typing-cursor {
    display: inline-block;
    width: 6px;
    height: 1.1em;
    background: linear-gradient(180deg, #ffffff, #ffd700);
    margin-left: 4px;
    animation: cursorBlink 0.8s step-end infinite;
    vertical-align: middle;
    border-radius: 3px;
    box-shadow:
        0 0 15px #ffffff,
        0 0 30px #ffd700;
}

@keyframes cursorBlink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0;
    }
}

.hero-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    max-width: 700px;
    margin-bottom: 1rem;
}

.hero-subtitle strong {
    color: var(--neon-cyan);
}

/* ===== BANNER - COMPACT ===== */
.important-banner {
    background: var(--card-bg);
    border: 3px solid var(--neon-pink);
    border-radius: 16px;
    padding: 1rem 1.25rem;
    margin-bottom: 1rem;
    position: relative;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: block;
    box-shadow:
        0 8px 32px rgba(236, 72, 153, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.important-banner::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg,
            var(--neon-pink),
            var(--neon-purple),
            var(--neon-cyan));
    border-radius: 20px 20px 0 0;
}

.important-banner:hover {
    transform: translateY(-5px);
    border-color: var(--neon-cyan);
    box-shadow: 0 20px 50px rgba(100, 181, 246, 0.25);
}

.banner-badge {
    display: inline-block;
    background: var(--neon-pink);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: 0.6rem;
}

.banner-title {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    line-height: 1.3;
}

.banner-title .highlight {
    color: var(--neon-cyan);
}

.banner-desc {
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.5;
}

.banner-arrow {
    position: absolute;
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 2rem;
    color: var(--neon-cyan);
    transition: transform 0.3s ease;
}

.important-banner:hover .banner-arrow {
    transform: translateY(-50%) translateX(10px);
}

/* ===== LEVELS - COMPACT ===== */
.levels-section {
    margin-bottom: 1rem;
}

.section-header {
    text-align: center;
    margin-bottom: 0.75rem;
}

.section-title {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-size: 1.4rem;
    font-weight: 900;
    margin-bottom: 0.35rem;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.levels-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.6rem;
}

.level-card {
    background: var(--card-bg);
    border: 2px solid var(--card-border);
    border-radius: 16px;
    padding: 0.85rem;
    transition: all 0.3s ease;
    text-decoration: none;
    color: inherit;
    position: relative;
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.level-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    border-radius: 20px 20px 0 0;
}

.level-card.lv1::before {
    background: linear-gradient(90deg, var(--neon-green), #4ade80);
}

.level-card.lv2::before {
    background: linear-gradient(90deg, var(--neon-yellow), #fcd34d);
}

.level-card.lv3::before {
    background: linear-gradient(90deg, var(--neon-orange), #fb923c);
}

.level-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(100, 181, 246, 0.2);
}

.level-card.lv1:hover {
    border-color: var(--neon-green);
}

.level-card.lv2:hover {
    border-color: var(--neon-yellow);
}

.level-card.lv3:hover {
    border-color: var(--neon-orange);
}

.level-badge {
    display: inline-block;
    padding: 0.35rem 0.9rem;
    border-radius: 100px;
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: 0.6rem;
}

.level-card.lv1 .level-badge {
    background: rgba(34, 197, 94, 0.25);
    color: var(--neon-green);
    border: 2px solid var(--neon-green);
}

.level-card.lv2 .level-badge {
    background: rgba(251, 191, 36, 0.25);
    color: var(--neon-yellow);
    border: 2px solid var(--neon-yellow);
}

.level-card.lv3 .level-badge {
    background: rgba(249, 115, 22, 0.25);
    color: var(--neon-orange);
    border: 2px solid var(--neon-orange);
}

.level-title {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
    line-height: 1.3;
}

.level-subtitle {
    color: var(--text-secondary);
    font-size: 0.75rem;
    margin-bottom: 0.6rem;
}

.level-items {
    list-style: none;
    margin-bottom: 0.85rem;
}

.level-items li {
    padding: 0.25rem 0;
    border-bottom: 1px solid rgba(100, 150, 255, 0.2);
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    line-height: 1.4;
}

.level-items li:last-child {
    border-bottom: none;
}

.level-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-weight: 700;
    font-size: 0.85rem;
}

.level-card.lv1 .level-cta {
    color: var(--neon-green);
}

.level-card.lv2 .level-cta {
    color: var(--neon-yellow);
}

.level-card.lv3 .level-cta {
    color: var(--neon-orange);
}

/* ===== QUICK - カード視認性向上 ===== */
.quick-section {
    margin-bottom: 2rem;
}

.quick-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
}

.quick-card {
    background: var(--card-bg);
    border: 2px solid var(--card-border);
    border-radius: 12px;
    padding: 0.6rem;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.quick-card:hover {
    transform: translateY(-5px);
    border-color: var(--neon-cyan);
    box-shadow: 0 12px 35px rgba(100, 181, 246, 0.15);
}

.quick-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg,
            rgba(0, 200, 255, 0.3),
            rgba(140, 80, 220, 0.3));
    border: 2px solid rgba(100, 181, 246, 0.3);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.quick-content h4 {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 0.3rem;
}

.quick-content p {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* ===== FOOTER ===== */
footer {
    background: linear-gradient(180deg,
            rgba(20, 30, 50, 0.95),
            rgba(15, 25, 45, 0.98));
    border-top: 2px solid var(--card-border);
    padding: 1.5rem 2rem;
    text-align: center;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
}

.footer-company {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-size: 1.4rem;
    font-weight: 900;
    margin-bottom: 1rem;
    color: var(--neon-cyan);
}

footer p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .quick-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .company-badge {
        display: none;
    }

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

    .hero {
        padding: 2rem 0;
    }

    .banner-arrow {
        display: none;
    }

    .logo-main {
        font-size: 1.2rem;
    }

    .logo-icon {
        width: 48px;
        height: 48px;
        font-size: 1.2rem;
    }
}

/* ===== PAGE CONTENT STYLES ===== */
.page-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 5rem 2rem 2.5rem;
}

.page-header {
    margin-bottom: 4rem;
}

.page-meta {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    background: var(--bg-card);
    padding: 0.5rem 1rem;
    border-radius: 100px;
    border: 1px solid var(--card-border);
}

.meta-item.highlight {
    background: rgba(100, 181, 246, 0.1);

    .page-subtitle {
        font-size: 1.25rem;
        color: var(--text-secondary);
    }

    /* Key Message Box */
    .key-message {
        background: linear-gradient(135deg,
                rgba(100, 181, 246, 0.1) 0%,
                rgba(100, 181, 246, 0.1) 100%);
        border: 1px solid var(--neon-cyan);
        border-radius: 20px;
        padding: 2.5rem;
        margin-bottom: 4rem;
        text-align: center;
    }

    .key-message-title {
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-size: 1.5rem;
        font-weight: 700;
        margin-bottom: 1rem;
        color: var(--neon-cyan);
    }

    .key-message-text {
        font-size: 2rem;
        font-weight: 700;
        line-height: 1.4;
    }

    .key-message-text .highlight {
        color: var(--neon-cyan);
    }

    /* Content Sections */
    .content-section {
        margin-bottom: 4rem;
    }

    .section-title {
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-size: 1.5rem;
        font-weight: 700;
        margin-bottom: 2rem;
        display: flex;
        align-items: center;
        gap: 0.75rem;
    }

    .section-title .icon {
        width: 48px;
        height: 48px;
        background: linear-gradient(135deg,
                rgba(100, 181, 246, 0.2),
                rgba(100, 181, 246, 0.2));
        border-radius: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.5rem;
    }

    /* Comparison Table */
    .comparison-table {
        width: 100%;
        border-collapse: collapse;
        margin-bottom: 2rem;
        background: var(--card-bg);
        border-radius: 16px;
        border: 1px solid var(--card-border);
    }

    .comparison-table th,
    .comparison-table td {
        padding: 1.25rem 1.5rem;
        text-align: left;
        border-bottom: 1px solid var(--card-border);
        border-right: 1px solid var(--card-border);
    }

    .comparison-table th:last-child,
    .comparison-table td:last-child {
        border-right: none;
    }

    .comparison-table th {
        background: rgba(30, 41, 70, 0.5);
        font-weight: 700;
        font-size: 0.9rem;
        text-transform: uppercase;
        letter-spacing: 0.05em;
        color: var(--text-secondary);
    }

    .comparison-table th:first-child {
        width: 30%;
        border-top-left-radius: 16px;
    }

    .comparison-table th:last-child {
        border-top-right-radius: 16px;
    }

    .comparison-table tr:last-child td {
        border-bottom: none;
    }

    .comparison-table .before {
        color: var(--neon-pink);
    }

    .comparison-table .after {
        color: var(--neon-green);
    }

    .comparison-table .emoji {
        font-size: 1.25rem;
        margin-right: 0.5rem;
    }

    /* Visual Flow */
    .visual-flow {
        background: var(--card-bg);
        border: 1px solid var(--card-border);
        border-radius: 20px;
        padding: 2.5rem;
        margin-bottom: 2rem;
    }

    .flow-title {
        font-weight: 700;
        margin-bottom: 1.5rem;
        text-align: center;
        color: var(--text-secondary);
    }

    .flow-diagram {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 1rem;
        flex-wrap: wrap;
    }

    .flow-box {
        background: var(--bg-dark);
        border: 2px solid var(--card-border);
        border-radius: 12px;
        padding: 1.5rem 2rem;
        text-align: center;
        min-width: 150px;
    }

    .flow-box.highlight {
        border-color: var(--neon-cyan);
        box-shadow: 0 0 20px rgba(100, 181, 246, 0.2);
    }

    .flow-box .emoji {
        font-size: 2rem;
        display: block;
        margin-bottom: 0.5rem;
    }

    .flow-box .label {
        font-weight: 700;
        font-size: 0.9rem;
    }

    .flow-arrow {
        font-size: 2rem;
        color: var(--neon-cyan);
    }

    /* Feature Grid */
    .feature-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 0.75rem;
        margin-bottom: 1rem;
    }

    .feature-card {
        background: var(--card-bg);
        border: 1px solid var(--card-border);
        border-radius: 16px;
        padding: 1rem;
        transition: all 0.3s ease;
    }

    .feature-card:hover {
        transform: translateY(-5px);
        border-color: var(--neon-cyan);
        box-shadow: 0 0 30px rgba(100, 181, 246, 0.1);
    }

    .feature-card .emoji {
        font-size: 2.5rem;
        display: block;
        margin-bottom: 0.5rem;
    }

    .feature-card h4 {
        font-size: 1.1rem;
        font-weight: 700;
        margin-bottom: 0.4rem;
    }

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

    /* Mermaid */
    .mermaid-container {
        background: var(--card-bg);
        border: 1px solid var(--card-border);
        border-radius: 16px;
        padding: 2rem;
        margin-bottom: 2rem;
        overflow-x: auto;
        text-align: center;
    }

    .mermaid {
        display: flex;
        justify-content: center;
    }

    /* Try It Box */
    .try-it-box {
        background: linear-gradient(135deg,
                rgba(34, 197, 94, 0.1) 0%,
                rgba(100, 181, 246, 0.1) 100%);
        border: 2px solid var(--neon-green);
        border-radius: 20px;
        padding: 2.5rem;
        margin-bottom: 2rem;
    }

    .try-it-title {
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-size: 1.25rem;
        font-weight: 700;
        color: var(--neon-green);
        margin-bottom: 1rem;
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }

    .try-it-steps {
        list-style: none;
    }

    .try-it-steps li {
        display: flex;
        align-items: flex-start;
        gap: 1rem;
        padding: 1rem 0;
        border-bottom: 1px solid rgba(34, 197, 94, 0.2);
    }

    .try-it-steps li:last-child {
        border-bottom: none;
    }

    .step-number {
        width: 36px;
        height: 36px;
        background: var(--neon-green);
        color: var(--bg-dark);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 700;
        flex-shrink: 0;
    }

    .step-content h5 {
        font-weight: 700;
        margin-bottom: 0.25rem;
    }

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

    /* Code Box */
    .code-box {
        background: #1a1a2e;
        border: 1px solid var(--card-border);
        border-radius: 12px;
        overflow: hidden;
        margin-bottom: 2rem;
    }

    .code-header {
        background: rgba(255, 255, 255, 0.05);
        padding: 0.75rem 1rem;
        display: flex;
        justify-content: space-between;
        align-items: center;
        border-bottom: 1px solid var(--card-border);
    }

    .code-label {
        font-family: "JetBrains Mono", monospace;
        font-size: 0.8rem;
        color: var(--text-secondary);
    }

    .copy-btn {
        background: var(--neon-cyan);
        color: var(--bg-dark);
        border: none;
        padding: 0.4rem 0.8rem;
        border-radius: 6px;
        font-size: 0.8rem;
        font-weight: 600;
        cursor: pointer;
        transition: all 0.2s ease;
    }

    .copy-btn:hover {
        transform: scale(1.05);
    }

    .code-content {
        padding: 1.5rem;
        font-family: "JetBrains Mono", monospace;
        font-size: 0.9rem;
        line-height: 1.6;
        overflow-x: auto;
        white-space: pre-wrap;
        color: #e2e8f0;
    }

    /* Warning Box */
    .warning-box {
        background: rgba(239, 68, 68, 0.1);
        border: 1px solid #ef4444;
        border-radius: 16px;
        padding: 1.5rem;
        margin-bottom: 2rem;
        display: flex;
        gap: 1rem;
    }

    .warning-icon {
        font-size: 1.5rem;
        flex-shrink: 0;
    }

    .warning-content h4 {
        color: #ef4444;
        font-weight: 700;
        margin-bottom: 0.5rem;
    }

    .warning-content p {
        color: var(--text-secondary);
        font-size: 0.9rem;
    }

    /* Navigation */
    .page-nav {
        display: flex;
        justify-content: space-between;
        gap: 1rem;
        margin-top: 4rem;
        padding-top: 2rem;
        border-top: 1px solid var(--card-border);
    }

    .nav-link {
        flex: 1;
        background: var(--card-bg);
        border: 1px solid var(--card-border);
        border-radius: 16px;
        padding: 1.5rem;
        text-decoration: none;
        color: inherit;
        transition: all 0.3s ease;
    }

    .nav-link:hover {
        border-color: var(--neon-cyan);
        transform: translateY(-3px);
    }

    .nav-link.prev {
        text-align: left;
    }

    .nav-link.next {
        text-align: right;
    }

    .nav-direction {
        font-size: 0.8rem;
        color: var(--text-secondary);
        margin-bottom: 0.5rem;
    }

    .nav-title {
        font-weight: 700;
        color: var(--neon-cyan);
    }

    /* Responsive for Pages */
    @media (max-width: 768px) {
        .page-container {
            padding: 6rem 1rem 2rem;
        }

        .page-meta {
            gap: 0.75rem;
        }

        .meta-item {
            padding: 0.4rem 0.8rem;
            font-size: 0.8rem;
        }

        .flow-diagram {
            flex-direction: column;
        }

        .flow-arrow {
            transform: rotate(90deg);
        }

        .page-nav {
            flex-direction: column;
        }
    }

    /* Glass & Utilities */
    .glass,
    .content-card,
    .comparison-section,
    .section-card,
    .info-box,
    .step-card {
        background: var(--card-bg) !important;
        border: 2px solid var(--card-border) !important;
        box-shadow:
            0 8px 32px rgba(0, 0, 0, 0.3),
            inset 0 1px 0 rgba(255, 255, 255, 0.08) !important;
    }

    /* Specific Content Card for Level Pages */
    .content-card {
        display: flex;
        align-items: center;
        gap: 0.75rem;
        padding: 1rem;
        background: var(--card-bg);
        border: 1px solid var(--card-border);
        border-radius: 16px;
        color: inherit;
        text-decoration: none;
        transition: all 0.3s ease;
        margin-bottom: 0.75rem;
    }

    .content-card:hover {
        transform: translateX(5px);
        border-color: var(--neon-cyan);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    }

    .content-number {
        font-size: 1.5rem;
        font-weight: 900;
        color: rgba(255, 255, 255, 0.1);
        font-family: "M PLUS Rounded 1c", sans-serif;
        min-width: 40px;
    }

    .content-info h3 {
        font-size: 1.1rem;
        font-weight: 700;
        margin-bottom: 0.25rem;
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }

    .content-desc {
        font-size: 0.85rem;
        color: var(--text-secondary);
        margin-bottom: 0.5rem;
        line-height: 1.4;
    }

    .content-meta {
        display: flex;
        gap: 0.5rem;
    }

    .meta-tag {
        font-size: 0.75rem;
        padding: 0.2rem 0.5rem;
        background: rgba(255, 255, 255, 0.05);
        border-radius: 4px;
        color: var(--text-secondary);
    }

    .goal-box {
        background: rgba(100, 181, 246, 0.05);
        border: 1px solid rgba(100, 181, 246, 0.2);
        border-radius: 16px;
        padding: 1.5rem;
        text-align: center;
        margin-bottom: 2rem;
    }

    .goal-label {
        font-size: 0.9rem;
        color: var(--neon-cyan);
        font-weight: 700;
        margin-bottom: 0.5rem;
    }

    .goal-text {
        font-size: 1.25rem;
        font-weight: 700;
        line-height: 1.4;
    }

    /* ===== SPECIALIZED PAGE STYLES (from 00_why-specialized.html) ===== */
    /* Hero Section Extensions */
    .hero-section {
        min-height: auto;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        text-align: center;
        padding: 2rem 1rem;
        position: relative;
        margin-bottom: 0rem;
    }

    .hero-badge {
        animation:
            badgeFadeIn 1s ease-out 0.3s both,
            badgePulse 3s ease-in-out infinite 1.3s;
    }

    @keyframes badgeFadeIn {
        0% {
            transform: translateY(-40px) scale(0.5) rotate(-10deg);
            opacity: 0;
        }

        60% {
            transform: translateY(5px) scale(1.1) rotate(2deg);
            opacity: 1;
        }

        100% {
            transform: translateY(0) scale(1) rotate(0);
            opacity: 1;
        }
    }

    @keyframes badgePulse {

        0%,
        100% {
            box-shadow: 0 0 15px rgba(100, 181, 246, 0.3);
        }

        50% {
            box-shadow: 0 0 30px rgba(100, 181, 246, 0.6);
        }
    }

    .hero-title {
        opacity: 0;
        animation: titleReveal 1.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.6s both;
        margin-bottom: 0.5rem;
    }

    @keyframes titleReveal {
        0% {
            transform: translateY(60px) scale(0.8);
            opacity: 0;
            filter: blur(20px);
        }

        60% {
            transform: translateY(-10px) scale(1.02);
            opacity: 1;
            filter: blur(0);
        }

        100% {
            transform: translateY(0) scale(1);
            opacity: 1;
            filter: blur(0);
        }
    }

    .hero-subtitle {
        opacity: 0;
        animation: subtitleFade 1s ease-out 1s both;
    }

    @keyframes subtitleFade {
        0% {
            transform: translateY(40px) scale(0.9);
            opacity: 0;
        }

        60% {
            transform: translateY(-5px) scale(1.02);
            opacity: 1;
        }

        100% {
            transform: translateY(0) scale(1);
            opacity: 1;
        }
    }

    .hero-cta {
        opacity: 0;
        animation: ctaFade 1s ease-out 1.3s both;
    }

    @keyframes ctaFade {
        0% {
            transform: translateY(50px) scale(0.7);
            opacity: 0;
        }

        60% {
            transform: translateY(-8px) scale(1.05);
            opacity: 1;
        }

        100% {
            transform: translateY(0) scale(1);
            opacity: 1;
        }
    }

    .cta-button {
        display: inline-flex;
        align-items: center;
        gap: 1rem;
        padding: 1.25rem 2.5rem;
        background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
        border: none;
        border-radius: 100px;
        color: var(--bg-dark);
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-weight: 700;
        font-size: 1rem;
        text-decoration: none;
        cursor: pointer;
        transition: all 0.4s ease;
        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 0.5s ease;
    }

    .cta-button:hover {
        transform: translateY(-5px) scale(1.05);
        box-shadow: 0 20px 50px rgba(100, 181, 246, 0.4);
    }

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

    .cta-arrow {
        transition: transform 0.3s ease;
    }

    .cta-button:hover .cta-arrow {
        transform: translateX(5px);
    }

    /* Generic Section Icon - Removed from HTML but keeping style just in case, but reducing margin */
    .section-icon {
        font-size: 2.5rem;
        margin-bottom: 0.5rem;
        animation: floatIcon 3s ease-in-out infinite;
        display: none;
        /* Hide if still present */
    }

    /* Problem Cards */
    .problem-section {
        margin-bottom: 2rem;
    }

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

    .problem-card {
        background: rgba(30, 41, 70, 0.6);
        backdrop-filter: blur(20px);
        border: 1px solid var(--card-border);
        border-radius: 20px;
        padding: 1.25rem;
        display: flex;
        gap: 1rem;
        align-items: flex-start;
        transition: all 0.4s ease;
        cursor: default;
    }

    .problem-card:hover {
        border-color: var(--neon-purple);
        transform: translateY(-8px) scale(1.02);
        box-shadow: 0 20px 40px rgba(100, 181, 246, 0.2);
    }

    .problem-card-icon {
        width: 48px;
        height: 48px;
        background: rgba(100, 181, 246, 0.15);
        border: 1px solid rgba(100, 181, 246, 0.3);
        border-radius: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.5rem;
        flex-shrink: 0;
        transition: all 0.3s ease;
    }

    .problem-card:hover .problem-card-icon {
        transform: scale(1.1) rotate(5deg);
    }

    .problem-card-content h4 {
        font-weight: 700;
        margin-bottom: 0.25rem;
        color: #ffffff;
    }

    .problem-card-content p {
        font-size: 0.9rem;
        color: var(--text-secondary);
        line-height: 1.6;
    }

    /* Diagram Section */
    .diagram-section {
        margin-bottom: 2rem;
    }

    .big-picture {
        background: rgba(30, 41, 70, 0.6);
        backdrop-filter: blur(20px);
        border: 1px solid var(--card-border);
        border-radius: 20px;
        padding: 1.5rem;
    }

    .big-picture-title {
        text-align: center;
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-size: 1.25rem;
        font-weight: 700;
        margin-bottom: 2rem;
        color: var(--neon-cyan);
    }

    .diagram-flow {
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 0.5rem;
        flex-wrap: wrap;
        margin-bottom: 0.5rem;
    }

    .diagram-box {
        background: linear-gradient(135deg, rgba(30, 41, 70, 0.9), rgba(20, 30, 50, 0.9));
        border: 2px solid var(--card-border);
        border-radius: 12px;
        padding: 0.75rem 1rem;
        text-align: center;
        min-width: 100px;
        transition: all 0.4s ease;
    }

    .diagram-box:hover {
        transform: scale(1.1);
    }

    .diagram-box.you {
        border-color: var(--neon-cyan);
        background: linear-gradient(135deg, rgba(100, 181, 246, 0.15), rgba(100, 181, 246, 0.05));
    }

    .diagram-box.ai {
        border-color: var(--neon-purple);
        background: linear-gradient(135deg, rgba(100, 181, 246, 0.15), rgba(100, 181, 246, 0.05));
    }

    .diagram-box.output {
        border-color: var(--neon-orange);
        background: linear-gradient(135deg, rgba(249, 115, 22, 0.15), rgba(249, 115, 22, 0.05));
        box-shadow: 0 0 15px rgba(249, 115, 22, 0.2);
    }

    .diagram-box-icon {
        font-size: 2.5rem;
        margin-bottom: 0.5rem;
    }

    .diagram-box-label {
        font-weight: 700;
        font-size: 0.95rem;
    }

    .diagram-box.you .diagram-box-label {
        color: var(--neon-cyan);
    }

    .diagram-box.ai .diagram-box-label {
        color: #ffffff;
    }

    .diagram-box.output .diagram-box-label {
        color: var(--neon-green);
    }

    .diagram-operator {
        font-size: 2rem;
        font-weight: 900;
        animation: operatorPulse 2s ease-in-out infinite;
    }

    .diagram-operator.plus {
        color: var(--neon-yellow);
    }

    .diagram-operator.arrow {
        color: var(--text-secondary);
    }

    @keyframes operatorPulse {

        0%,
        100% {
            transform: scale(1);
        }

        50% {
            transform: scale(1.2);
        }
    }

    /* VS Section */
    .vs-section {
        margin-bottom: 2rem;
    }

    .vs-container {
        display: grid;
        grid-template-columns: 1fr auto 1fr;
        gap: 1.5rem;
        align-items: stretch;
    }

    .vs-column {
        background: rgba(30, 41, 70, 0.6);
        backdrop-filter: blur(20px);
        border-radius: 24px;
        padding: 1.5rem;
        transition: all 0.4s ease;
    }

    .vs-column.bad {
        border: 2px solid rgba(100, 100, 100, 0.5);
    }

    .vs-column.good {
        border: 2px solid var(--neon-green);
    }

    .vs-column:hover {
        transform: translateY(-5px);
    }

    .vs-column-header {
        text-align: center;
        margin-bottom: 2rem;
        padding-bottom: 1.5rem;
        border-bottom: 1px solid var(--card-border);
    }

    .vs-column-icon {
        font-size: 3rem;
        margin-bottom: 0.75rem;
    }

    .vs-column-title {
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-size: 1.1rem;
        font-weight: 700;
    }

    .vs-column.bad .vs-column-title {
        color: #9ca3af;
    }

    .vs-column.good .vs-column-title {
        color: var(--neon-green);
    }

    .vs-column-subtitle {
        font-size: 0.85rem;
        color: var(--text-secondary);
        margin-top: 0.5rem;
    }

    .vs-steps {
        display: flex;
        flex-direction: column;
        gap: 0.75rem;
    }

    .vs-step {
        background: rgba(0, 0, 0, 0.3);
        border: 1px solid var(--card-border);
        border-radius: 12px;
        padding: 1rem;
        display: flex;
        align-items: center;
        gap: 0.75rem;
        transition: all 0.3s ease;
    }

    .vs-step:hover {
        transform: translateX(5px);
        border-color: var(--neon-cyan);
    }

    .vs-step-icon {
        width: 36px;
        height: 36px;
        border-radius: 8px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1rem;
        flex-shrink: 0;
        background: rgba(255, 255, 255, 0.05);
    }

    .vs-step-text {
        font-size: 0.9rem;
    }

    .vs-arrow {
        text-align: center;
        color: var(--text-secondary);
        padding: 0.25rem 0;
    }

    .vs-result {
        margin-top: 1.5rem;
        padding: 1.5rem;
        border-radius: 16px;
        text-align: center;
    }

    .vs-column.bad .vs-result {
        background: rgba(100, 100, 100, 0.1);
        border: 2px dashed rgba(100, 100, 100, 0.3);
    }

    .vs-column.good .vs-result {
        background: rgba(34, 197, 94, 0.1);
        border: 2px dashed var(--neon-green);
    }

    .vs-result-icon {
        font-size: 2.5rem;
        margin-bottom: 0.5rem;
    }

    .vs-result-title {
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-weight: 700;
        margin-bottom: 0.5rem;
    }

    .vs-column.bad .vs-result-title {
        color: #9ca3af;
    }

    .vs-column.good .vs-result-title {
        color: var(--neon-green);
    }

    .vs-result-desc {
        font-size: 0.85rem;
        color: var(--text-secondary);
    }

    .vs-divider {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 1rem;
    }

    .vs-line {
        width: 3px;
        height: 80px;
        background: linear-gradient(to bottom,
                transparent,
                var(--neon-purple),
                transparent);
    }

    .vs-badge {
        width: 56px;
        height: 56px;
        background: linear-gradient(135deg, var(--neon-purple), var(--neon-cyan));
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-weight: 900;
        font-size: 1rem;
        box-shadow: 0 0 30px rgba(100, 181, 246, 0.4);
        animation: vsBadgePulse 2s ease-in-out infinite;
    }

    @keyframes vsBadgePulse {

        0%,
        100% {
            transform: scale(1);
        }

        50% {
            transform: scale(1.1);
        }
    }

    /* Context Section */
    .context-section {
        margin-bottom: 4rem;
    }

    .context-intro {
        background: rgba(30, 41, 70, 0.6);
        backdrop-filter: blur(20px);
        border: 1px solid var(--card-border);
        border-radius: 20px;
        padding: 2rem;
        margin-bottom: 2rem;
        text-align: center;
    }

    .context-intro p {
        font-size: 1.1rem;
        line-height: 1.8;
        color: var(--text-secondary);
    }

    .context-intro strong {
        color: var(--neon-cyan);
    }

    .context-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
    }

    .context-card {
        background: rgba(30, 41, 70, 0.6);
        backdrop-filter: blur(20px);
        border: 1px solid var(--card-border);
        border-radius: 20px;
        padding: 2rem;
        transition: all 0.4s ease;
        position: relative;
        overflow: hidden;
    }

    .context-card::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
    }

    .context-card:nth-child(1)::before {
        background: var(--neon-cyan);
    }

    .context-card:nth-child(2)::before {
        background: var(--neon-purple);
    }

    .context-card:nth-child(3)::before {
        background: var(--neon-orange);
    }

    .context-card:hover {
        transform: translateY(-10px) scale(1.02);
        border-color: var(--neon-cyan);
        box-shadow: 0 20px 40px rgba(100, 181, 246, 0.1);
    }

    .context-card-header {
        display: flex;
        align-items: center;
        gap: 1rem;
        margin-bottom: 1rem;
    }

    .context-icon {
        width: 56px;
        height: 56px;
        border-radius: 16px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.75rem;
        transition: all 0.3s ease;
    }

    .context-card:nth-child(1) .context-icon {
        background: rgba(100, 181, 246, 0.15);
    }

    .context-card:nth-child(2) .context-icon {
        background: rgba(100, 181, 246, 0.15);
    }

    .context-card:nth-child(3) .context-icon {
        background: rgba(249, 115, 22, 0.15);
    }

    .context-card:hover .context-icon {
        transform: scale(1.1) rotate(5deg);
    }

    .context-title {
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-weight: 700;
        font-size: 1.1rem;
    }

    .context-card:nth-child(1) .context-title {
        color: var(--neon-cyan);
    }

    .context-card:nth-child(2) .context-title {
        color: var(--neon-purple);
    }

    .context-card:nth-child(3) .context-title {
        color: var(--neon-orange);
    }

    .context-desc {
        color: var(--text-secondary);
        font-size: 0.9rem;
        margin-bottom: 1rem;
        line-height: 1.6;
    }

    .context-examples {
        padding-top: 1rem;
        border-top: 1px solid var(--card-border);
    }

    .context-example {
        display: flex;
        align-items: flex-start;
        gap: 0.5rem;
        font-size: 0.85rem;
        color: var(--text-secondary);
        margin-bottom: 0.5rem;
        line-height: 1.5;
    }

    .context-example-bullet {
        color: var(--neon-cyan);
        font-weight: 900;
    }

    /* Responsive Adjustments for Specialized Page */
    @media (max-width: 1024px) {
        .vs-container {
            grid-template-columns: 1fr;
        }

        .vs-divider {
            flex-direction: row;
            padding: 1rem 0;
        }

        .vs-line {
            width: 80px;
            height: 3px;
            background: linear-gradient(to right,
                    transparent,
                    var(--neon-purple),
                    transparent);
        }

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

    /* ===== COMPARISON PAGE STYLES (from 01-2_comparison.html) ===== */
    /* Recommend Box */
    .recommend-box {
        background: linear-gradient(135deg,
                rgba(255, 107, 53, 0.15),
                rgba(255, 107, 53, 0.05));
        border: 2px solid #ff6b35;
        border-radius: 20px;
        padding: 2rem;
        margin-bottom: 2rem;
        position: relative;
    }

    .recommend-box::before {
        content: "★ メイン推奨";
        position: absolute;
        top: -1px;
        right: 20px;
        background: #ff6b35;
        color: var(--bg-dark);
        padding: 0.4rem 1rem;
        font-size: 0.85rem;
        font-weight: 700;
        border-radius: 0 0 10px 10px;
    }

    .recommend-title {
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-size: 1.3rem;
        font-weight: 900;
        color: #ff6b35;
        margin-bottom: 1rem;
        display: flex;
        align-items: center;
        gap: 0.75rem;
    }

    .recommend-content {
        color: var(--text-secondary);
    }

    .recommend-content strong {
        color: var(--text-primary);
    }

    /* Sub Recommend Box */
    .sub-recommend {
        background: linear-gradient(135deg,
                rgba(66, 133, 244, 0.12),
                rgba(66, 133, 244, 0.05));
        border: 1px solid #4285f4;
        border-radius: 16px;
        padding: 1.5rem;
        margin-bottom: 2rem;
        position: relative;
    }

    .sub-recommend::before {
        content: "📌 制限時のバックアップ";
        position: absolute;
        top: -1px;
        right: 20px;
        background: #4285f4;
        color: white;
        padding: 0.3rem 0.8rem;
        font-size: 0.75rem;
        font-weight: 600;
        border-radius: 0 0 8px 8px;
    }

    .sub-recommend h3 {
        color: #4285f4;
        font-size: 1.1rem;
        margin-bottom: 0.75rem;
    }

    /* AI Cards */
    .ai-cards {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
        margin-bottom: 2rem;
    }

    .ai-card {
        background: rgba(30, 41, 70, 0.6);
        backdrop-filter: blur(20px);
        border: 2px solid var(--card-border);
        border-radius: 16px;
        padding: 1.5rem;
        transition: all 0.3s ease;
    }

    .ai-card:hover {
        transform: translateY(-5px);
    }

    .ai-card.claude {
        border-color: #ff6b35;
    }

    .ai-card.gemini {
        border-color: #4285f4;
    }

    .ai-card.chatgpt {
        border-color: #10a37f;
    }

    .ai-header {
        display: flex;
        align-items: center;
        gap: 0.75rem;
        margin-bottom: 1rem;
    }

    .ai-icon {
        width: 45px;
        height: 45px;
        border-radius: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.3rem;
        font-weight: 900;
        color: white;
    }

    .ai-card.claude .ai-icon {
        background: linear-gradient(135deg, #ff6b35, #ff8f66);
    }

    .ai-card.gemini .ai-icon {
        background: linear-gradient(135deg, #4285f4, #60a5fa);
    }

    .ai-card.chatgpt .ai-icon {
        background: linear-gradient(135deg, #10a37f, #34d399);
    }

    .ai-name {
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-size: 1.1rem;
        font-weight: 700;
    }

    .ai-card.claude .ai-name {
        color: #ff6b35;
    }

    .ai-card.gemini .ai-name {
        color: #4285f4;
    }

    .ai-card.chatgpt .ai-name {
        color: #10a37f;
    }

    .ai-company {
        font-size: 0.75rem;
        color: var(--text-secondary);
    }

    .ai-version {
        font-size: 0.7rem;
        color: var(--text-secondary);
        margin-top: 2px;
    }

    .ai-desc {
        font-size: 0.85rem;
        color: var(--text-secondary);
        margin-bottom: 1rem;
    }

    .ai-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 0.4rem;
    }

    .ai-tag {
        display: inline-block;
        padding: 0.2rem 0.6rem;
        border-radius: 100px;
        font-size: 0.7rem;
        font-weight: 600;
    }

    .ai-card.claude .ai-tag {
        background: rgba(255, 107, 53, 0.2);
        color: #ff6b35;
    }

    .ai-card.gemini .ai-tag {
        background: rgba(66, 133, 244, 0.2);
        color: #4285f4;
    }

    .ai-card.chatgpt .ai-tag {
        background: rgba(16, 163, 127, 0.2);
        color: #10a37f;
    }

    /* Comparison Table */
    .comparison-section {
        background: rgba(30, 41, 70, 0.6);
        backdrop-filter: blur(20px);
        border: 1px solid var(--card-border);
        border-radius: 16px;
        padding: 1.5rem;
        margin-bottom: 1.5rem;
    }

    .compare-table {
        width: 100%;
        border-collapse: collapse;
    }

    .compare-table th,
    .compare-table td {
        padding: 0.75rem;
        text-align: center;
        border-bottom: 1px solid var(--card-border);
        font-size: 0.85rem;
    }

    .compare-table th {
        background: rgba(0, 0, 0, 0.3);
        color: var(--text-secondary);
        font-weight: 600;
    }

    .compare-table th:first-child {
        text-align: left;
        width: 30%;
    }

    .compare-table td:first-child {
        text-align: left;
        color: var(--text-secondary);
    }

    .compare-table .best {
        color: var(--neon-cyan);
        font-weight: 700;
    }

    .compare-table .good {
        color: var(--neon-purple);
    }

    .compare-table .normal {
        color: var(--text-secondary);
    }

    /* Usage Grid */
    .usage-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .usage-item {
        background: rgba(0, 0, 0, 0.3);
        border-radius: 12px;
        padding: 1rem;
    }

    .usage-item h4 {
        font-size: 0.9rem;
        margin-bottom: 0.5rem;
        color: var(--neon-cyan);
    }

    .usage-item p {
        font-size: 0.85rem;
        color: var(--text-secondary);
        margin: 0;
    }

    .usage-item .ai-recommend {
        font-weight: 700;
        margin-top: 0.5rem;
    }

    .usage-item .ai-recommend.claude {
        color: #ff6b35;
    }

    .usage-item .ai-recommend.gemini {
        color: #4285f4;
    }

    .usage-item .ai-recommend.chatgpt {
        color: #10a37f;
    }

    /* Responsive */
    @media (max-width: 900px) {
        .ai-cards {
            grid-template-columns: 1fr;
        }

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

    /* ===== SECURITY PAGE STYLES (from 01-3_security.html) ===== */
    /* Hero Security */
    .hero-security {
        text-align: center;
        margin-bottom: 4rem;
    }

    .security-icon {
        width: 120px;
        height: 120px;
        background: linear-gradient(135deg, #ef4444, #ff6b6b);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 4rem;
        margin: 0 auto 2rem;
        box-shadow: 0 0 60px rgba(239, 68, 68, 0.4);
        animation: pulse-shield 2s ease-in-out infinite;
    }

    @keyframes pulse-shield {

        0%,
        100% {
            box-shadow: 0 0 60px rgba(239, 68, 68, 0.4);
        }

        50% {
            box-shadow:
                0 0 80px rgba(239, 68, 68, 0.4),
                0 0 120px rgba(239, 68, 68, 0.2);
        }
    }

    /* Golden Rules */
    .golden-rules {
        margin-bottom: 4rem;
    }

    .rules-title {
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-size: 1.75rem;
        font-weight: 700;
        text-align: center;
        margin-bottom: 2rem;
        color: #f59e0b;
    }

    .rules-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
    }

    .rule-card {
        background: rgba(30, 41, 70, 0.6);
        backdrop-filter: blur(20px);
        border: 2px solid #ef4444;
        border-radius: 24px;
        padding: 2rem;
        text-align: center;
        position: relative;
        overflow: hidden;
        transition: all 0.4s ease;
    }

    .rule-card::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: linear-gradient(90deg, #ef4444, #f59e0b);
    }

    .rule-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 20px 60px rgba(239, 68, 68, 0.4);
    }

    .rule-number {
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-size: 4rem;
        font-weight: 900;
        color: #ef4444;
        opacity: 0.3;
        position: absolute;
        top: 10px;
        right: 20px;
    }

    .rule-icon {
        font-size: 3rem;
        margin-bottom: 1rem;
    }

    .rule-title {
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-size: 1.1rem;
        font-weight: 700;
        color: #ef4444;
        margin-bottom: 0.75rem;
    }

    .rule-desc {
        color: var(--text-secondary);
        font-size: 0.9rem;
        line-height: 1.6;
    }

    /* OK/NG Section */
    .okng-section {
        margin-bottom: 4rem;
    }

    .okng-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }

    .okng-card {
        background: rgba(30, 41, 70, 0.6);
        backdrop-filter: blur(20px);
        border-radius: 20px;
        overflow: hidden;
    }

    .okng-header {
        padding: 1.5rem;
        display: flex;
        align-items: center;
        gap: 1rem;
    }

    .okng-header.ok {
        background: linear-gradient(135deg,
                rgba(34, 197, 94, 0.2),
                rgba(34, 197, 94, 0.1));
        border-bottom: 2px solid #22c55e;
    }

    .okng-header.ng {
        background: linear-gradient(135deg,
                rgba(239, 68, 68, 0.2),
                rgba(239, 68, 68, 0.1));
        border-bottom: 2px solid #ef4444;
    }

    .okng-badge {
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-size: 1.5rem;
        font-weight: 900;
    }

    .okng-badge.ok {
        color: #22c55e;
    }

    .okng-badge.ng {
        color: #ef4444;
    }

    .okng-label {
        font-weight: 700;
        font-size: 1.1rem;
    }

    .okng-list {
        list-style: none;
        padding: 1.5rem;
    }

    .okng-list li {
        display: flex;
        align-items: flex-start;
        gap: 0.75rem;
        padding: 0.75rem 0;
        border-bottom: 1px solid var(--card-border);
    }

    .okng-list li:last-child {
        border-bottom: none;
    }

    .okng-list .icon {
        font-size: 1.25rem;
        flex-shrink: 0;
    }

    /* Anonymization Examples */
    .anon-section {
        margin-bottom: 4rem;
    }

    .anon-container {
        background: rgba(30, 41, 70, 0.6);
        backdrop-filter: blur(20px);
        border: 1px solid var(--card-border);
        border-radius: 20px;
        padding: 1.5rem;
    }

    .anon-example {
        display: grid;
        grid-template-columns: 1fr auto 1fr;
        gap: 2rem;
        align-items: center;
        margin-bottom: 2rem;
        padding-bottom: 2rem;
        border-bottom: 1px solid var(--card-border);
    }

    .anon-example:last-child {
        margin-bottom: 0;
        padding-bottom: 0;
        border-bottom: none;
    }

    .anon-box {
        background: rgba(0, 0, 0, 0.3);
        border-radius: 16px;
        padding: 1.5rem;
        font-family: "JetBrains Mono", monospace;
        font-size: 0.9rem;
        line-height: 1.6;
    }

    .anon-box.before {
        border: 2px solid #ef4444;
    }

    .anon-box.after {
        border: 2px solid #22c55e;
    }

    .anon-label {
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-size: 0.8rem;
        font-weight: 700;
        margin-bottom: 0.75rem;
        display: block;
    }

    .anon-label.before {
        color: #ef4444;
    }

    .anon-label.after {
        color: #22c55e;
    }

    .anon-arrow {
        font-size: 2rem;
        color: var(--neon-cyan);
    }

    .highlight-bad {
        background: rgba(239, 68, 68, 0.3);
        padding: 0.1rem 0.3rem;
        border-radius: 4px;
    }

    .highlight-good {
        background: rgba(34, 197, 94, 0.3);
        padding: 0.1rem 0.3rem;
        border-radius: 4px;
    }

    /* Emergency Box */
    .emergency-box {
        background: linear-gradient(135deg,
                rgba(239, 68, 68, 0.1),
                rgba(239, 68, 68, 0.05));
        border: 2px solid #ef4444;
        border-radius: 24px;
        padding: 2.5rem;
        margin-bottom: 4rem;
        position: relative;
        overflow: hidden;
    }

    .emergency-box::before {
        content: "⚠️";
        position: absolute;
        font-size: 8rem;
        opacity: 0.1;
        right: 20px;
        top: 50%;
        transform: translateY(-50%);
    }

    .emergency-title {
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-size: 1.5rem;
        font-weight: 700;
        color: #ef4444;
        margin-bottom: 1.5rem;
        display: flex;
        align-items: center;
        gap: 0.75rem;
    }

    .emergency-steps {
        display: flex;
        gap: 1.5rem;
    }

    .emergency-step {
        flex: 1;
        background: rgba(0, 0, 0, 0.3);
        border-radius: 16px;
        padding: 1.5rem;
        text-align: center;
    }

    .step-number {
        width: 40px;
        height: 40px;
        background: #ef4444;
        color: white;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-weight: 900;
        margin: 0 auto 1rem;
    }

    .step-title {
        font-weight: 700;
        margin-bottom: 0.5rem;
    }

    .step-desc {
        font-size: 0.85rem;
        color: var(--text-secondary);
    }

    /* Checklist */
    .checklist-section {
        margin-bottom: 4rem;
    }

    .checklist-container {
        background: rgba(30, 41, 70, 0.6);
        backdrop-filter: blur(20px);
        border: 1px solid var(--card-border);
        border-radius: 20px;
        padding: 1.5rem;
    }

    .checklist-title {
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-size: 1.25rem;
        font-weight: 700;
        margin-bottom: 1.5rem;
        color: var(--neon-cyan);
    }

    .checklist {
        list-style: none;
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .checklist li {
        display: flex;
        align-items: center;
        gap: 0.75rem;
        padding: 1rem;
        background: rgba(0, 0, 0, 0.2);
        border-radius: 12px;
        transition: all 0.3s ease;
        cursor: pointer;
    }

    .checklist li:hover {
        background: rgba(100, 181, 246, 0.1);
    }

    .checklist li.checked .checkbox {
        background: #22c55e;
        border-color: #ffffff;
    }

    .checklist li.checked .checkbox::after {
        content: "✓";
        color: #000000;
        font-weight: bold;
    }

    /* ---------- チェックボックス（コントラスト改善） ---------- */
    .checkbox {
        width: 24px;
        height: 24px;
        border: 2px solid var(--neon-cyan);
        border-radius: 6px;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
        transition: all 0.3s ease;
        color: #ffffff;
    }

    .anon-arrow {
        transform: rotate(90deg);
    }

    .emergency-steps {
        flex-direction: column;
    }

    @media (max-width: 768px) {
        .checklist {
            grid-template-columns: 1fr;
        }
    }

    /* ===== EXCEL/WORD PAGE STYLES (from 02-1_excel-word.html) ===== */
    /* Effect Banner */
    .effect-banner {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
        margin-bottom: 4rem;
    }

    .effect-item {
        background: var(--card-bg-solid);
        border: 1px solid var(--card-border);
        border-radius: 16px;
        padding: 2rem;
        text-align: center;
    }

    .effect-value {
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-size: 2.5rem;
        font-weight: 900;
        color: #22c55e;
        display: block;
    }

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

    /* Quick Start Box */
    .quick-start-box {
        background: linear-gradient(135deg,
                rgba(100, 181, 246, 0.1) 0%,
                rgba(100, 181, 246, 0.1) 100%);
        border: 2px solid var(--neon-cyan);
        border-radius: 20px;
        padding: 2.5rem;
        margin-bottom: 3rem;
    }

    .quick-start-title {
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-size: 1.25rem;
        font-weight: 700;
        color: var(--neon-cyan);
        margin-bottom: 1.5rem;
        text-align: center;
    }

    .quick-steps {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
    }

    .quick-step {
        text-align: center;
    }

    .quick-step-number {
        width: 60px;
        height: 60px;
        background: var(--neon-cyan);
        color: var(--bg-dark);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-size: 1.5rem;
        font-weight: 900;
        margin: 0 auto 1rem;
    }

    .quick-step h4 {
        font-weight: 700;
        margin-bottom: 0.5rem;
    }

    .quick-step p {
        font-size: 0.85rem;
        color: var(--text-secondary);
    }

    .quick-step-time {
        font-family: "JetBrains Mono", monospace;
        font-size: 0.8rem;
        color: var(--neon-cyan);
        margin-top: 0.5rem;
    }

    /* Use Case Grid */
    .use-case-grid {
        display: grid;
        gap: 1.5rem;
    }

    .use-case-card {
        background: var(--card-bg-solid);
        border: 1px solid var(--card-border);
        border-radius: 20px;
        padding: 2rem;
        display: grid;
        grid-template-columns: auto 1fr auto;
        gap: 1.5rem;
        align-items: center;
        transition: all 0.3s ease;
    }

    .use-case-card:hover {
        border-color: var(--neon-cyan);
        transform: translateX(10px);
    }

    .use-case-icon {
        width: 70px;
        height: 70px;
        background: rgba(100, 181, 246, 0.1);
        border-radius: 16px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 2rem;
    }

    .use-case-content h4 {
        font-size: 1.25rem;
        font-weight: 700;
        margin-bottom: 0.5rem;
    }

    .use-case-content p {
        color: var(--text-secondary);
        font-size: 0.9rem;
    }

    .use-case-effect {
        text-align: center;
        padding: 1rem;
        background: rgba(34, 197, 94, 0.1);
        border-radius: 12px;
        min-width: 120px;
    }

    .use-case-effect .value {
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-size: 1.5rem;
        font-weight: 700;
        color: #22c55e;
        display: block;
    }

    .use-case-effect .label {
        font-size: 0.75rem;
        color: var(--text-secondary);
    }

    /* Flow Container */
    .flow-container {
        background: var(--card-bg-solid);
        border: 1px solid var(--card-border);
        border-radius: 20px;
        padding: 2.5rem;
        margin-bottom: 2rem;
    }

    .mermaid-container {
        overflow-x: auto;
    }

    .mermaid {
        display: flex;
        justify-content: center;
    }

    /* Code Box */
    .code-box {
        background: #1a1a2e;
        border: 1px solid var(--card-border);
        border-radius: 12px;
        overflow: hidden;
        margin-bottom: 2rem;
    }

    .code-header {
        background: rgba(255, 255, 255, 0.05);
        padding: 0.75rem 1rem;
        display: flex;
        justify-content: space-between;
        align-items: center;
        border-bottom: 1px solid var(--card-border);
    }

    .code-label {
        font-family: "JetBrains Mono", monospace;
        font-size: 0.8rem;
        color: var(--text-secondary);
    }

    .copy-btn {
        background: var(--neon-cyan);
        color: var(--bg-dark);
        border: none;
        padding: 0.4rem 0.8rem;
        border-radius: 6px;
        font-size: 0.8rem;
        font-weight: 600;
        cursor: pointer;
        transition: all 0.2s ease;
    }

    .copy-btn:hover {
        transform: scale(1.05);
    }

    .code-content {
        padding: 1.5rem;
        font-family: "JetBrains Mono", monospace;
        font-size: 0.85rem;
        line-height: 1.6;
        overflow-x: auto;
        white-space: pre-wrap;
    }

    /* Tabs */
    .tabs {
        display: flex;
        gap: 0.5rem;
        margin-bottom: 1.5rem;
        border-bottom: 1px solid var(--card-border);
        padding-bottom: 0.5rem;
    }

    .tab-btn {
        background: transparent;
        border: none;
        color: var(--text-secondary);
        padding: 0.75rem 1.5rem;
        font-size: 0.95rem;
        font-weight: 600;
        cursor: pointer;
        border-radius: 8px 8px 0 0;
        transition: all 0.3s ease;
    }

    .tab-btn.active {
        background: var(--card-bg-solid);
        color: var(--neon-cyan);
        border-bottom: 2px solid var(--neon-cyan);
    }

    .tab-btn:hover:not(.active) {
        color: var(--text-primary);
    }

    .tab-content {
        display: none;
    }

    .tab-content.active {
        display: block;
    }

    /* Checklist (Box Variant) */
    .checklist-box {
        background: var(--card-bg-solid);
        border: 1px solid var(--card-border);
        border-radius: 16px;
        padding: 2rem;
    }

    .checklist-box-title {
        font-weight: 700;
        margin-bottom: 1rem;
        color: var(--neon-cyan);
    }

    .checklist-items {
        list-style: none;
    }

    .checklist-items li {
        display: flex;
        align-items: center;
        gap: 0.75rem;
        padding: 0.75rem 0;
        border-bottom: 1px solid var(--card-border);
    }

    .checklist-items li:last-child {
        border-bottom: none;
    }

    .check-icon {
        width: 24px;
        height: 24px;
        border: 2px solid var(--neon-cyan);
        border-radius: 6px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--neon-cyan);
        font-size: 0.8rem;
        flex-shrink: 0;
    }

    /* Tip Box */
    .tip-box {
        background: rgba(245, 158, 11, 0.1);
        border: 1px solid #f59e0b;
        border-radius: 16px;
        padding: 1.5rem;
        margin: 2rem 0;
        display: flex;
        gap: 1rem;
    }

    .tip-icon {
        font-size: 1.5rem;
        flex-shrink: 0;
    }

    .tip-content h4 {
        color: #f59e0b;
        font-weight: 700;
        margin-bottom: 0.5rem;
    }

    .tip-content p {
        color: var(--text-secondary);
        font-size: 0.9rem;
    }

    /* Responsive */
    @media (max-width: 768px) {
        .effect-banner {
            grid-template-columns: 1fr;
        }

        .quick-steps {
            grid-template-columns: 1fr;
            gap: 1.5rem;
        }

        .use-case-card {
            grid-template-columns: 1fr;
            text-align: center;
        }

        .use-case-icon {
            margin: 0 auto;
        }

        .tabs {
            flex-wrap: wrap;
        }
    }

    /* ===== PROMPT PAGE STYLES (from 02-2_prompt.html) ===== */
    /* Hero (Prompt Page Variant) */
    .hero-prompt {
        text-align: center;
        margin-bottom: 2rem;
    }

    .hero-icon {
        font-size: 5rem;
        margin-bottom: 1.5rem;
        animation: bounce 2s ease-in-out infinite;
    }

    @keyframes bounce {

        0%,
        100% {
            transform: translateY(0);
        }

        50% {
            transform: translateY(-10px);
        }
    }

    .hero-title-prompt {
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-size: clamp(2rem, 5vw, 3rem);
        font-weight: 900;
        margin-bottom: 1rem;
        background: linear-gradient(90deg,
                var(--neon-cyan),
                var(--neon-purple),
                var(--neon-pink));
        -webkit-background-clip: text;
        background-clip: text;
        -webkit-text-fill-color: transparent;
    }

    .hero-subtitle {
        font-size: 1.25rem;
        color: var(--text-secondary);
    }

    /* Formula Box */
    .formula-box {
        background: var(--glass);
        backdrop-filter: blur(20px);
        border: 2px solid var(--neon-purple);
        border-radius: 24px;
        padding: 1.5rem;
        margin-bottom: 2rem;
        text-align: center;
        position: relative;
        overflow: hidden;
    }

    .formula-box::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: linear-gradient(90deg,
                var(--neon-cyan),
                var(--neon-purple),
                var(--neon-pink));
    }

    .formula-label {
        font-family: "JetBrains Mono", monospace;
        font-size: 0.9rem;
        color: var(--neon-purple);
        text-transform: uppercase;
        letter-spacing: 0.2em;
        margin-bottom: 1.5rem;
    }

    .formula {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 1rem;
        flex-wrap: wrap;
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-size: 1.1rem;
    }

    .formula-item {
        background: rgba(0, 0, 0, 0.3);
        padding: 0.5rem 0.75rem;
        border-radius: 12px;
        border: 1px solid var(--glass-border);
        transition: all 0.3s ease;
    }

    .formula-item:hover {
        border-color: var(--neon-cyan);
        box-shadow: 0 0 20px rgba(100, 181, 246, 0.2);
    }

    .formula-item .emoji {
        font-size: 1.5rem;
        display: block;
        margin-bottom: 0.5rem;
    }

    .formula-item .text {
        font-size: 0.85rem;
        color: var(--text-secondary);
    }

    .formula-plus {
        font-size: 2rem;
        color: var(--neon-purple);
    }

    .formula-equals {
        font-size: 2rem;
        color: #22c55e;
    }

    .formula-result {
        background: linear-gradient(135deg,
                rgba(34, 197, 94, 0.2),
                rgba(100, 181, 246, 0.2));
        border-color: #22c55e;
    }

    /* Elements Grid */
    .elements-grid {
        display: grid;
        grid-template-columns: repeat(5, 1fr);
        gap: 0.5rem;
    }

    .element-card {
        background: var(--glass);
        backdrop-filter: blur(20px);
        border: 1px solid var(--glass-border);
        border-radius: 20px;
        padding: 0.75rem;
        text-align: center;
        transition: all 0.4s ease;
        cursor: pointer;
    }

    .element-card:hover {
        transform: translateY(-10px);
        border-color: var(--neon-cyan);
        box-shadow: 0 20px 40px rgba(100, 181, 246, 0.15);
    }

    .element-card.active {
        border-color: #ffffff;
        box-shadow: 0 0 30px rgba(100, 181, 246, 0.3);
    }

    .element-number {
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-size: 2rem;
        font-weight: 900;
        opacity: 0.3;
        margin-bottom: 0.5rem;
    }

    .element-icon {
        font-size: 2rem;
        margin-bottom: 0.5rem;
    }

    .element-name {
        font-weight: 700;
        font-size: 0.9rem;
        margin-bottom: 0.25rem;
    }

    .element-rating {
        display: flex;
        justify-content: center;
        gap: 2px;
    }

    .star {
        color: var(--neon-yellow);
        font-size: 0.9rem;
    }

    .star.empty {
        opacity: 0.3;
    }

    /* Element Detail */
    .element-detail {
        background: var(--glass);
        backdrop-filter: blur(20px);
        border: 1px solid var(--neon-purple);
        border-radius: 20px;
        padding: 2rem;
        margin-top: 2rem;
        display: none;
    }

    .element-detail.active {
        display: block;
        animation: fadeIn 0.4s ease;
    }

    @keyframes fadeIn {
        from {
            opacity: 0;
            transform: translateY(10px);
        }

        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .detail-title {
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-size: 1.25rem;
        font-weight: 700;
        margin-bottom: 1rem;
        color: var(--neon-purple);
    }

    .detail-desc {
        color: var(--text-secondary);
        margin-bottom: 1.5rem;
    }

    .detail-example {
        background: rgba(0, 0, 0, 0.3);
        border-radius: 12px;
        padding: 1.5rem;
    }

    .example-label {
        font-family: "JetBrains Mono", monospace;
        font-size: 0.8rem;
        color: var(--neon-cyan);
        margin-bottom: 0.5rem;
    }

    /* Before/After Section */
    .beforeafter-section {
        margin-bottom: 4rem;
    }

    .beforeafter-container {
        background: var(--glass);
        backdrop-filter: blur(20px);
        border: 1px solid var(--glass-border);
        border-radius: 24px;
        overflow: hidden;
    }

    .beforeafter-header {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }

    .ba-tab {
        padding: 1.5rem;
        text-align: center;
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-weight: 700;
    }

    .ba-tab.before {
        background: rgba(239, 68, 68, 0.1);
        color: #ef4444;
        border-bottom: 3px solid #ef4444;
    }

    .ba-tab.after {
        background: rgba(34, 197, 94, 0.1);
        color: #22c55e;
        border-bottom: 3px solid #22c55e;
    }

    .beforeafter-content {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }

    .ba-panel {
        padding: 2rem;
        border-right: 1px solid var(--glass-border);
    }

    .ba-panel:last-child {
        border-right: none;
    }

    .ba-code {
        font-family: "JetBrains Mono", monospace;
        font-size: 0.9rem;
        line-height: 1.8;
        white-space: pre-wrap;
    }

    .ba-result {
        margin-top: 1.5rem;
        padding: 1rem;
        background: rgba(0, 0, 0, 0.3);
        border-radius: 12px;
    }

    .ba-result-label {
        font-size: 0.8rem;
        color: var(--text-secondary);
        margin-bottom: 0.5rem;
    }

    /* Prompt Section */
    .prompt-section {
        margin-bottom: 4rem;
    }

    .prompt-card {
        background: var(--glass);
        backdrop-filter: blur(20px);
        border: 1px solid var(--glass-border);
        border-radius: 20px;
        margin-bottom: 1.5rem;
        overflow: hidden;
    }

    .prompt-header {
        background: rgba(100, 181, 246, 0.1);
        padding: 1rem 1.5rem;
        display: flex;
        justify-content: space-between;
        align-items: center;
        border-bottom: 1px solid var(--glass-border);
    }

    .prompt-title {
        font-weight: 700;
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }

    .prompt-body {
        padding: 1.5rem;
        font-family: "JetBrains Mono", monospace;
        font-size: 0.9rem;
        line-height: 1.8;
        white-space: pre-wrap;
    }

    /* Tips Grid */
    .tips-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
        margin-bottom: 4rem;
    }

    .tip-card {
        background: var(--glass);
        backdrop-filter: blur(20px);
        border: 1px solid var(--glass-border);
        border-radius: 20px;
        padding: 1rem;
        transition: all 0.3s ease;
    }

    .tip-card:hover {
        border-color: var(--neon-purple);
        transform: translateX(5px);
    }

    .tip-icon {
        font-size: 2.5rem;
        margin-bottom: 1rem;
    }

    .tip-title {
        font-weight: 700;
        margin-bottom: 0.5rem;
    }

    .tip-desc {
        color: var(--text-secondary);
        font-size: 0.9rem;
    }

    /* Responsive */
    @media (max-width: 900px) {
        .elements-grid {
            grid-template-columns: repeat(3, 1fr);
        }
    }

    @media (max-width: 768px) {
        .formula {
            flex-direction: column;
        }

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

        .beforeafter-header,
        .beforeafter-content {
            grid-template-columns: 1fr;
        }

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

    /* ===== MULTI-CHECK PAGE STYLES (from 02-3_multi-check.html) ===== */
    /* Concept Box */
    .concept-box {
        background: var(--glass);
        backdrop-filter: blur(20px);
        border: 2px solid #22c55e;
        border-radius: 24px;
        padding: 1.5rem;
        margin-bottom: 2rem;
        text-align: center;
    }

    .concept-label {
        font-family: "JetBrains Mono", monospace;
        font-size: 0.9rem;
        color: #22c55e;
        margin-bottom: 1rem;
    }

    .concept-text {
        font-size: 1.75rem;
        font-weight: 700;
        line-height: 1.5;
    }

    .concept-highlight {
        color: var(--neon-cyan);
    }

    /* Flow Visualization */
    .flow-section {
        margin-bottom: 2rem;
    }

    .flow-visual {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 0.5rem;
        flex-wrap: wrap;
        padding: 1rem;
        background: var(--glass);
        border: 1px solid var(--glass-border);
        border-radius: 20px;
    }

    .flow-step {
        background: rgba(0, 0, 0, 0.3);
        border: 2px solid var(--glass-border);
        border-radius: 16px;
        padding: 0.75rem 1rem;
        text-align: center;
        min-width: 150px;
        transition: all 0.3s ease;
    }

    .flow-step:hover {
        border-color: var(--neon-cyan);
        transform: scale(1.05);
    }

    .flow-step.ai-a {
        border-color: #22c55e;
    }

    .flow-step.ai-b {
        border-color: var(--neon-purple);
    }

    .flow-step.human {
        border-color: var(--neon-orange);
    }

    .flow-step-icon {
        font-size: 2.5rem;
        margin-bottom: 0.5rem;
    }

    .flow-step-label {
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-size: 0.9rem;
        font-weight: 700;
    }

    .flow-step-label.ai-a {
        color: #22c55e;
    }

    .flow-step-label.ai-b {
        color: var(--neon-purple);
    }

    .flow-step-label.human {
        color: var(--neon-orange);
    }

    .flow-arrow {
        font-size: 2rem;
        color: var(--neon-cyan);
        animation: pulse 1.5s ease-in-out infinite;
    }

    @keyframes pulse {

        0%,
        100% {
            opacity: 0.5;
        }

        50% {
            opacity: 1;
        }
    }

    /* Why Section */
    .why-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 0.75rem;
        margin-bottom: 2rem;
    }

    .why-card {
        background: var(--glass);
        backdrop-filter: blur(20px);
        border: 1px solid var(--glass-border);
        border-radius: 20px;
        padding: 1rem;
        text-align: center;
        transition: all 0.3s ease;
    }

    .why-card:hover {
        border-color: var(--neon-cyan);
        transform: translateY(-5px);
    }

    .why-icon {
        font-size: 2.5rem;
        margin-bottom: 0.5rem;
    }

    .why-title {
        font-weight: 700;
        margin-bottom: 0.5rem;
    }

    .why-desc {
        color: var(--text-secondary);
        font-size: 0.9rem;
    }

    /* Steps */
    .steps-container {
        background: var(--glass);
        backdrop-filter: blur(20px);
        border: 1px solid var(--glass-border);
        border-radius: 24px;
        padding: 1.25rem;
        margin-bottom: 2rem;
    }

    .step-item {
        display: flex;
        gap: 1rem;
        padding: 0.75rem 0;
        border-bottom: 1px solid var(--glass-border);
    }

    .step-item:last-child {
        border-bottom: none;
    }

    .step-number-circle {
        width: 50px;
        height: 50px;
        background: linear-gradient(135deg, #22c55e, var(--neon-cyan));
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-weight: 900;
        font-size: 1.25rem;
        color: var(--bg-dark);
        flex-shrink: 0;
    }

    .step-content h4 {
        font-weight: 700;
        margin-bottom: 0.5rem;
        font-size: 1.1rem;
    }

    .step-content p {
        color: var(--text-secondary);
        font-size: 0.95rem;
    }

    /* Responsive */
    @media (max-width: 768px) {
        .why-grid {
            grid-template-columns: 1fr;
        }
    }
}

/* Page Badge */
.page-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(100, 181, 246, 0.1);
    border: 1px solid var(--neon-cyan);
    border-radius: 100px;
    font-size: 0.85rem;
    color: var(--neon-cyan);
    margin-bottom: 1rem;
}

/* Highlight Box */
.highlight-box {
    background: rgba(100, 181, 246, 0.1);
    border: 1px solid var(--neon-cyan);
    border-radius: 12px;
    padding: 0.75rem;
    margin: 1rem 0;
}

.highlight-box h4 {
    color: var(--neon-cyan);
    margin-bottom: 0.75rem;
    font-size: 1rem;
}

/* Workflow Grid */
.workflow-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
    margin: 1rem 0;
}

.workflow-item {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 0.5rem;
    text-align: center;
}

.workflow-item .icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.workflow-item .label {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.workflow-item .desc {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.workflow-item.active {
    border-color: #22c55e;
    background: rgba(34, 197, 94, 0.1);
}

/* Example Box */
.example-box {
    background: rgba(0, 0, 0, 0.4);
    border-radius: 12px;
    padding: 0.75rem;
    margin: 1rem 0;
}

.example-box h5 {
    color: var(--neon-purple);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.example-box pre {
    background: rgba(0, 0, 0, 0.5);
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
    font-size: 0.85rem;
    line-height: 1.6;
    white-space: pre-wrap;
}

/* Task Grid */
.task-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
    margin: 1rem 0;
}

.task-card {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 0.6rem;
}

.task-card h5 {
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.task-card p {
    font-size: 0.85rem;
    margin-bottom: 0;
}

.task-card.ok {
    border-color: #22c55e;
}

.task-card.ok h5 {
    color: #22c55e;
}

.task-card.ng {
    border-color: #ef4444;
}

.task-card.ng h5 {
    color: #ef4444;
}

/* Responsive */
@media (max-width: 768px) {
    .workflow-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

/* ===== DIGITAL TWIN PAGE STYLES (from 03-1_digital-twin.html) ===== */
/* 3D Background */
.bg-3d {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    perspective: 1000px;
    overflow: hidden;
}

.grid-floor {
    position: absolute;
    width: 200%;
    height: 200%;
    left: -50%;
    top: 50%;
    background:
        linear-gradient(90deg, rgba(100, 181, 246, 0.1) 1px, transparent 1px),
        linear-gradient(rgba(100, 181, 246, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    transform: rotateX(60deg);
    animation: gridScroll 20s linear infinite;
}

@keyframes gridScroll {
    0% {
        transform: rotateX(60deg) translateY(0);
    }

    100% {
        transform: rotateX(60deg) translateY(50px);
    }
}

.floating-cube {
    position: absolute;
    width: 100px;
    height: 100px;
    transform-style: preserve-3d;
    animation: cubeFloat 10s ease-in-out infinite;
}

.cube-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.cube-2 {
    top: 60%;
    right: 15%;
    animation-delay: -3s;
}

.cube-3 {
    top: 40%;
    left: 70%;
    animation-delay: -6s;
}

@keyframes cubeFloat {

    0%,
    100% {
        transform: translateY(0) rotateX(0deg) rotateY(0deg);
    }

    50% {
        transform: translateY(-30px) rotateX(180deg) rotateY(180deg);
    }
}

.cube-face {
    position: absolute;
    width: 100px;
    height: 100px;
    border: 1px solid var(--neon-cyan);
    background: rgba(100, 181, 246, 0.05);
    opacity: 0.5;
}

/* Hero 3D */
.hero-3d {
    text-align: center;
    margin-bottom: 2.5rem;
    position: relative;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.5rem;
    background: linear-gradient(135deg,
            rgba(100, 181, 246, 0.2),
            rgba(100, 181, 246, 0.2));
    border: 1px solid var(--neon-purple);
    border-radius: 100px;
    font-family: "JetBrains Mono", monospace;
    font-size: 0.85rem;
    color: var(--neon-purple);
    margin-bottom: 2rem;
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from {
        box-shadow: 0 0 20px rgba(100, 181, 246, 0.3);
    }

    to {
        box-shadow: 0 0 40px rgba(100, 181, 246, 0.6);
    }
}

.hero-title-3d {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 900;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg,
            var(--neon-cyan),
            var(--neon-purple),
            var(--neon-pink));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 60px rgba(100, 181, 246, 0.3);
}

/* Concept Visualization */
.concept-visual {
    background: var(--glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 32px;
    padding: 2rem;
    margin-bottom: 2.5rem;
    position: relative;
    overflow: hidden;
}

.concept-visual::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 30%,
            rgba(100, 181, 246, 0.1),
            transparent 50%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

.concept-content {
    position: relative;
    z-index: 1;
}

.concept-title {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--neon-cyan);
}

.twin-diagram {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.twin-side {
    text-align: center;
    flex: 1;
    min-width: 200px;
}

.twin-icon {
    width: 150px;
    height: 150px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    position: relative;
}

.twin-icon.real {
    background: linear-gradient(135deg,
            rgba(59, 130, 246, 0.2),
            rgba(59, 130, 246, 0.1));
    border: 2px solid var(--neon-blue);
    box-shadow: 0 0 40px rgba(59, 130, 246, 0.3);
}

.twin-icon.digital {
    background: linear-gradient(135deg,
            rgba(100, 181, 246, 0.2),
            rgba(100, 181, 246, 0.1));
    border: 2px solid var(--neon-purple);
    box-shadow: 0 0 40px rgba(100, 181, 246, 0.3);
    animation: pulse 2s ease-in-out infinite;
}

.twin-label {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.twin-label.real {
    color: var(--neon-blue);
}

.twin-label.digital {
    color: var(--neon-purple);
}

.twin-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.sync-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.sync-line {
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, var(--neon-blue), var(--neon-purple));
    border-radius: 2px;
    position: relative;
    overflow: hidden;
}

.sync-line::after {
    content: "";
    position: absolute;
    width: 30px;
    height: 100%;
    background: linear-gradient(90deg, transparent, white, transparent);
    animation: syncFlow 1.5s linear infinite;
}

@keyframes syncFlow {
    from {
        left: -30px;
    }

    to {
        left: 100%;
    }
}

.sync-label {
    font-family: "JetBrains Mono", monospace;
    font-size: 0.8rem;
    color: var(--neon-cyan);
}

/* Steps Timeline */
.steps-timeline {
    position: relative;
    padding-left: 60px;
}

.steps-timeline::before {
    content: "";
    position: absolute;
    left: 25px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom,
            var(--neon-cyan),
            var(--neon-purple),
            var(--neon-pink));
}

.steps-timeline .step-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 2rem;
}

.steps-timeline .step-number {
    position: absolute;
    left: -60px;
    width: 50px;
    height: 50px;
    background: var(--bg-dark);
    border: 3px solid var(--neon-cyan);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-size: 1.25rem;
    font-weight: 900;
    color: var(--neon-cyan);
    box-shadow: 0 0 20px rgba(100, 181, 246, 0.3);
}

.step-card {
    background: var(--glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2rem;
    transition: all 0.4s ease;
}

.step-card:hover {
    border-color: var(--neon-cyan);
    transform: translateX(10px);
    box-shadow: 0 20px 60px rgba(100, 181, 246, 0.1);
}

.step-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.step-icon {
    font-size: 2rem;
}

.step-title {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
}

.step-desc {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.step-action {
    background: rgba(100, 181, 246, 0.1);
    border: 1px solid rgba(100, 181, 246, 0.3);
    border-radius: 12px;
    padding: 1rem;
    font-family: "JetBrains Mono", monospace;
    font-size: 0.85rem;
}

.step-action-label {
    color: var(--neon-cyan);
    font-size: 0.75rem;
    margin-bottom: 0.5rem;
}

/* Effect Showcase */
.effect-showcase {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.effect-card {
    background: var(--glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 1.25rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
}

.effect-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
}

.effect-card:nth-child(1)::before {
    background: var(--neon-cyan);
}

.effect-card:nth-child(2)::before {
    background: var(--neon-purple);
}

.effect-card:nth-child(3)::before {
    background: var(--neon-green);
}

.effect-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.3);
}

.effect-value {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 0.5rem;
}

.effect-card:nth-child(1) .effect-value {
    color: var(--neon-cyan);
}

.effect-card:nth-child(2) .effect-value {
    color: var(--neon-purple);
}

.effect-card:nth-child(3) .effect-value {
    color: var(--neon-green);
}

.effect-label {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
    .twin-diagram {
        flex-direction: column;
    }

    .sync-arrow {
        transform: rotate(90deg);
        margin: 1rem 0;
    }

    .effect-showcase {
        grid-template-columns: 1fr;
    }

    .steps-timeline {
        padding-left: 40px;
    }

    .steps-timeline .step-number {
        left: -40px;
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
}

/* ===== FOLDER PAGE STYLES (from 03-2_folder.html) ===== */
/* Folder Tree */
.folder-tree {
    background: rgba(0, 0, 0, 0.4);
    border-radius: 12px;
    padding: 0.75rem;
    font-family: monospace;
    font-size: 0.9rem;
    line-height: 1.8;
    margin: 1rem 0;
}

.folder-tree .folder {
    color: var(--neon-yellow);
}

.folder-tree .file {
    color: var(--text-secondary);
}

/* Orange Variations for Folder Page */
.orb.orb-orange {
    background: var(--neon-orange);
}

.page-badge.orange {
    background: rgba(249, 115, 22, 0.1);
    border-color: var(--neon-orange);
    color: var(--neon-orange);
}

/* ===== KNOWLEDGE PAGE STYLES (from 03-3_knowledge.html) ===== */
/* Flow Grid */
.flow-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    margin: 1.5rem 0;
}

.flow-item {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 0.75rem;
    text-align: center;
}

.flow-item .icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
}

.flow-item h4 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.flow-item p {
    font-size: 0.85rem;
    margin-bottom: 0;
}

/* Orb Variations */
.orb.orb-purple {
    background: var(--neon-purple);
}

.orb.orb-cyan {
    background: var(--neon-cyan);
}

/* Responsive */
@media (max-width: 768px) {
    .flow-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== PROMOTION PAGE STYLES (from 04-1_promotion.html) ===== */
/* Phase Grid */
.phase-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    margin: 1.5rem 0;
}

.phase-item {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1.5rem;
}

.phase-item .badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
}

.phase-item.p1 .badge {
    background: rgba(34, 197, 94, 0.2);
    color: var(--neon-green);
}

.phase-item.p2 .badge {
    background: rgba(251, 191, 36, 0.2);
    color: var(--neon-yellow);
}

.phase-item.p3 .badge {
    background: rgba(249, 115, 22, 0.2);
    color: var(--neon-orange);
}

.phase-item h4 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.phase-item p {
    font-size: 0.85rem;
    margin-bottom: 0;
}

/* Simple Checklist */
.checklist {
    list-style: none;
    margin: 1rem 0;
}

.checklist li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.checklist li:last-child {
    border-bottom: none;
}

/* Green Variations */
.orb.orb-green {
    background: var(--neon-green);
}

.page-badge.green {
    background: rgba(34, 197, 94, 0.1);
    border-color: var(--neon-green);
    color: var(--neon-green);
}

/* Responsive */
@media (max-width: 768px) {
    .phase-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== GLOSSARY PAGE STYLES (from 04-2_glossary.html) ===== */
/* Hero Glossary */
.hero-glossary {
    text-align: center;
    margin-bottom: 3rem;
}

.hero-glossary .hero-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.hero-glossary .hero-title {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 1rem;
    background: linear-gradient(90deg, var(--neon-cyan), var(--neon-purple));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-glossary .hero-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Usage Guide */
.usage-guide {
    background: var(--card-bg);
    border: 2px solid var(--neon-green);
    border-radius: 16px;
    padding: 1.5rem 2rem;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.usage-icon {
    font-size: 2.5rem;
}

.usage-text h3 {
    color: var(--neon-green);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.usage-text p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.usage-text .demo-term {
    display: inline-block;
    border-bottom: 2px dotted var(--neon-cyan);
    color: var(--neon-cyan);
    padding: 0.1rem 0.3rem;
    margin: 0 0.2rem;
}

/* Search Section */
.search-section {
    position: sticky;
    top: 80px;
    z-index: 100;
    background: linear-gradient(180deg,
            rgba(10, 15, 30, 0.98),
            rgba(10, 15, 30, 0.95));
    backdrop-filter: blur(20px);
    padding: 1.5rem;
    margin: 0 -1rem 2rem;
    border-radius: 16px;
    border: 2px solid var(--card-border);
}

.search-box {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.search-input {
    flex: 1;
    background: rgba(0, 0, 0, 0.4);
    border: 2px solid var(--card-border);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    font-size: 1rem;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--neon-cyan);
    box-shadow: 0 0 20px rgba(100, 181, 246, 0.2);
}

.search-input::placeholder {
    color: var(--text-secondary);
}

.search-count {
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    background: rgba(100, 181, 246, 0.15);
    border: 2px solid var(--neon-cyan);
    border-radius: 12px;
    font-size: 0.95rem;
    color: var(--neon-cyan);
    font-weight: 700;
}

/* Category Filter */
.category-filter {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid var(--card-border);
    border-radius: 100px;
    padding: 0.5rem 1.2rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.filter-btn:hover {
    border-color: var(--neon-cyan);
    color: var(--neon-cyan);
}

.filter-btn.active {
    background: var(--neon-cyan);
    border-color: var(--neon-cyan);
    color: var(--bg-dark);
}

/* Terms Grid & Cards */
.terms-grid {
    display: grid;
    gap: 1.5rem;
}

.term-card {
    background: var(--card-bg);
    border: 2px solid var(--card-border);
    border-radius: 20px;
    padding: 2rem;
    transition: all 0.4s ease;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.term-card:hover {
    border-color: var(--neon-cyan);
    transform: translateX(8px);
    box-shadow: 0 12px 40px rgba(100, 181, 246, 0.15);
}

.term-card.hidden {
    display: none;
}

.term-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.term-icon {
    width: 54px;
    height: 54px;
    background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.term-names {
    flex: 1;
}

.term-name {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
}

.term-name-en {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.2rem;
}

.term-category {
    padding: 0.4rem 1rem;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 700;
}

.term-category.basic {
    background: rgba(34, 197, 94, 0.25);
    color: var(--neon-green);
    border: 1px solid var(--neon-green);
}

.term-category.service {
    background: rgba(100, 181, 246, 0.25);
    color: var(--neon-purple);
    border: 1px solid var(--neon-purple);
}

.term-category.tech {
    background: rgba(100, 181, 246, 0.25);
    color: var(--neon-cyan);
    border: 1px solid var(--neon-cyan);
}

.term-category.business {
    background: rgba(251, 191, 36, 0.25);
    color: var(--neon-yellow);
    border: 1px solid var(--neon-yellow);
}

.term-category.security {
    background: rgba(236, 72, 153, 0.25);
    color: var(--neon-pink);
    border: 1px solid var(--neon-pink);
}

.term-definition {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.9;
    margin-bottom: 1rem;
}

.term-example {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 12px;
    padding: 1rem 1.25rem;
    border-left: 4px solid var(--neon-cyan);
}

.term-example-label {
    font-size: 0.8rem;
    color: var(--neon-cyan);
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.term-example-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* No Results */
.no-results {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
    display: none;
}

.no-results.show {
    display: block;
}

.no-results-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* Responsive */
@media (max-width: 768px) {
    .search-box {
        flex-direction: column;
    }

    .search-count {
        justify-content: center;
        padding: 0.75rem;
    }

    .usage-guide {
        flex-direction: column;
        text-align: center;
    }
}

/* ===== TROUBLESHOOTING PAGE STYLES (from 04-3_troubleshooting.html) ===== */
/* Background Canvas */
.bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background:
        radial-gradient(ellipse at 80% 20%,
            rgba(244, 63, 94, 0.1) 0%,
            transparent 50%),
        radial-gradient(ellipse at 20% 80%,
            rgba(100, 181, 246, 0.1) 0%,
            transparent 50%);
}

/* Hero Trouble */
.hero-trouble {
    text-align: center;
    margin-bottom: 3rem;
}

.hero-trouble .hero-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.hero-trouble .hero-title {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 1rem;
    background: linear-gradient(90deg, var(--neon-pink), var(--neon-purple));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-trouble .hero-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Category Tabs */
.category-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

.cat-tab {
    background: transparent;
    border: 1px solid var(--glass-border);
    border-radius: 100px;
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.cat-tab:hover,
.cat-tab.active {
    background: var(--neon-purple);
    border-color: #ffffff;
    color: var(--bg-dark);
}

/* FAQ Section & Accordion */
.faq-section {
    margin-bottom: 3rem;
}

.faq-section-title {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--neon-cyan);
}

.faq-item {
    background: var(--glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    margin-bottom: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: var(--neon-purple);
}

.faq-item.open {
    border-color: var(--neon-cyan);
    box-shadow: 0 10px 40px rgba(100, 181, 246, 0.1);
}

.faq-question {
    padding: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.faq-q-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--neon-pink), var(--neon-purple));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.faq-q-text {
    flex: 1;
    font-weight: 700;
    font-size: 1rem;
}

.faq-toggle {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: transform 0.3s ease;
    color: var(--text-secondary);
}

.faq-item.open .faq-toggle {
    transform: rotate(45deg);
    color: var(--neon-cyan);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition:
        max-height 0.4s ease,
        padding 0.4s ease;
}

.faq-item.open .faq-answer {
    max-height: 500px;
}

.faq-answer-content {
    padding: 0 1.5rem 1.5rem;
    padding-left: calc(40px + 2.5rem);
}

.faq-answer-content p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.faq-answer-content p:last-child {
    margin-bottom: 0;
}

/* Solution & Warning Boxes */
.solution-box {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid var(--neon-green);
    border-radius: 12px;
    padding: 1rem;
    margin-top: 1rem;
}

.solution-label {
    font-family: "JetBrains Mono", monospace;
    font-size: 0.8rem;
    color: var(--neon-green);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.solution-text {
    font-size: 0.9rem;
    color: var(--text-primary);
}

.warning-box {
    background: rgba(251, 191, 36, 0.1);
    border: 1px solid var(--neon-yellow);
    border-radius: 12px;
    padding: 1rem;
    margin-top: 1rem;
}

.warning-label {
    font-family: "JetBrains Mono", monospace;
    font-size: 0.8rem;
    color: var(--neon-yellow);
    margin-bottom: 0.5rem;
}

/* Quick Links */
.quick-links {
    background: var(--glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2rem;
    margin-top: 3rem;
}

.quick-links-title {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--neon-cyan);
}

.quick-links-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.quick-link {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1rem;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.quick-link:hover {
    border-color: var(--neon-cyan);
    transform: translateX(5px);
}

.quick-link-icon {
    font-size: 1.5rem;
}

.quick-link-text {
    font-weight: 600;
}

/* Responsive */
@media (max-width: 768px) {
    .quick-links-grid {
        grid-template-columns: 1fr;
    }

    .faq-answer-content {
        padding-left: 1.5rem;
    }
}

/* ===== PROMPTS PAGE STYLES (from R1_prompts.html) ===== */
/* Prompt Card */
.prompt-card {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.prompt-card h4 {
    color: var(--neon-cyan);
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.prompt-card .desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.prompt-card pre {
    background: rgba(0, 0, 0, 0.5);
    padding: 1rem;
    border-radius: 8px;
    font-size: 0.8rem;
    line-height: 1.6;
    white-space: pre-wrap;
    overflow-x: auto;
    margin-bottom: 0.75rem;
}

.prompt-card .copy-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
    border: none;
    border-radius: 8px;
    color: var(--bg-dark);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.3s;
}

.prompt-card .copy-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(100, 181, 246, 0.3);
}

/* Cyan Variations */
.page-badge.cyan {
    background: rgba(100, 181, 246, 0.1);
    border-color: var(--neon-cyan);
    color: var(--neon-cyan);
}

/* ===== LEVEL PAGES STYLES (from level-1.html) ===== */
/* Level Hero - Compact */
.level-hero {
    text-align: center;
    margin-bottom: 1.25rem;
}

.level-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.25rem;
    background: linear-gradient(135deg,
            rgba(34, 197, 94, 0.2),
            rgba(34, 197, 94, 0.1));
    border: 2px solid var(--neon-green);
    border-radius: 100px;
    margin-bottom: 0.5rem;
    font-size: 0.85rem;
}

.level-number {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--neon-green);
}

.level-name {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--neon-green);
}

.level-title {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-size: 1.75rem;
    font-weight: 900;
    margin-bottom: 0.5rem;
    text-shadow: 0 0 40px rgba(34, 197, 94, 0.4);
    letter-spacing: 0.03em;
    line-height: 1.2;
}

.level-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* Goal Box - Compact */
.goal-box {
    background: var(--glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--neon-green);
    border-radius: 16px;
    padding: 1rem 1.5rem;
    margin-bottom: 1.25rem;
    text-align: center;
}

.goal-label {
    font-family: "JetBrains Mono", monospace;
    font-size: 0.8rem;
    color: var(--neon-green);
    margin-bottom: 0.4rem;
}

.goal-text {
    font-size: 1.1rem;
    font-weight: 700;
    line-height: 1.3;
}

/* Content List & Cards - Compact */
.content-list {
    display: grid;
    gap: 1rem;
}

.content-card {
    background: var(--glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1rem 1.25rem;
    display: flex;
    gap: 1rem;
    align-items: center;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

.content-card:hover {
    border-color: var(--neon-green);
    transform: translateX(10px);
    box-shadow: 0 10px 30px rgba(34, 197, 94, 0.2), 0 0 20px rgba(34, 197, 94, 0.1);
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.08), rgba(0, 0, 0, 0.4));
}

.content-number {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-size: 2rem;
    font-weight: 900;
    color: var(--neon-green);
    opacity: 0.5;
    min-width: 50px;
    text-align: center;
}

.content-info {
    flex: 1;
}

.content-title {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.3rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.content-desc {
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.4;
}

.content-meta {
    display: flex;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.meta-tag {
    font-size: 0.7rem;
    padding: 0.2rem 0.6rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 100px;
    color: var(--text-secondary);
}

.content-arrow {
    font-size: 1.25rem;
    color: var(--neon-green);
    opacity: 0;
    transition: all 0.3s ease;
}

.content-card:hover .content-arrow {
    opacity: 1;
    transform: translateX(8px);
}

/* Next Level - Compact */
.next-level {
    background: var(--glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1rem 1.25rem;
    margin-top: 1.5rem;
    text-align: center;
}

.next-level-title {
    font-family: "M PLUS Rounded 1c", sans-serif;
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.next-level-link {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.85rem 1.4rem;
    background: linear-gradient(135deg, var(--neon-cyan, #00f0ff), var(--neon-purple, #a855f7));
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 100px;
    text-decoration: none;
    color: var(--bg-dark);
    font-size: 0.95rem;
    line-height: 1.2;
    font-weight: 700;
    transition: all 0.3s ease;
}

.next-level .next-level-link {
    margin-top: 0.6rem;
}

.next-level .next-level-link:first-of-type {
    margin-top: 0;
}

.next-level-link--blue {
    background: linear-gradient(135deg, rgba(100, 181, 246, 0.35), rgba(59, 130, 246, 0.25));
    border-color: rgba(100, 181, 246, 0.65);
    color: #ffffff;
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.18);
}

.next-level-link--green {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.35), rgba(34, 197, 94, 0.18));
    border-color: rgba(34, 197, 94, 0.65);
    color: #ffffff;
    box-shadow: 0 10px 30px rgba(34, 197, 94, 0.12);
}

.next-level-link--dark {
    background: rgba(15, 23, 42, 0.55);
    border-color: rgba(100, 181, 246, 0.55);
    color: var(--text-primary);
}

.next-level-link:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 40px rgba(100, 181, 246, 0.3);
}

/* Background Canvas Variations */
.bg-canvas-level1 {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: radial-gradient(ellipse at 30% 20%,
            rgba(34, 197, 94, 0.15) 0%,
            transparent 50%);
}

/* Responsive */
@media (max-width: 768px) {
    .content-card {
        flex-direction: column;
        text-align: center;
    }

    .content-number {
        min-width: auto;
    }
}

/* ===== LEVEL 2 STYLES (from level-2.html) ===== */
:root {
    --neon-blue: #3b82f6;
}

/* Blue Variations for Level 2 */
.level-badge.blue {
    background: linear-gradient(135deg,
            rgba(59, 130, 246, 0.2),
            rgba(59, 130, 246, 0.1));
    border-color: var(--neon-blue);
}

.level-number.blue {
    color: var(--neon-blue);
}

.level-name.blue {
    color: var(--neon-blue);
}

.goal-box.blue {
    border-color: var(--neon-blue);
}

.goal-label.blue {
    color: var(--neon-blue);
}

.content-card:hover.blue-hover {
    border-color: var(--neon-blue);
    box-shadow: 0 20px 60px rgba(59, 130, 246, 0.25), 0 0 30px rgba(59, 130, 246, 0.1);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(0, 0, 0, 0.4));
}

.content-number.blue {
    color: var(--neon-blue);
}

.content-arrow.blue {
    color: var(--neon-blue);
}

/* Highlight Card */
.content-card.highlight {
    border-color: var(--neon-cyan);
    background: linear-gradient(135deg,
            rgba(100, 181, 246, 0.05),
            rgba(59, 130, 246, 0.05));
}

/* Meta Tag Hot */
.meta-tag.hot {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
}

/* Nav Levels */
.nav-levels {
    display: flex;
    gap: 1rem;
    margin-top: 3rem;
}

.nav-level {
    flex: 1;
    background: linear-gradient(145deg, rgba(20, 30, 50, 0.8), rgba(10, 15, 30, 0.9));
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 1.5rem;
    text-align: center;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.nav-level:hover {
    border-color: var(--neon-cyan);
    transform: translateY(-5px) scale(1.02);
    background: linear-gradient(145deg, rgba(30, 45, 75, 0.9), rgba(15, 25, 45, 0.95));
    box-shadow: 0 10px 30px rgba(100, 181, 246, 0.15);
}

.nav-level-dir {
    @media (max-width: 768px) {
        .nav-levels {
            flex-direction: column;
        }
    }

    /* ===== LEVEL 3 STYLES (from level-3.html) ===== */
    /* Orange Variations for Level 3 */
    .level-badge.orange {
        background: linear-gradient(135deg,
                rgba(249, 115, 22, 0.2),
                rgba(249, 115, 22, 0.1));
        border-color: var(--neon-orange);
    }

    .level-number.orange {
        color: var(--neon-orange);
    }

    .level-name.orange {
        color: var(--neon-orange);
    }

    .goal-box.orange {
        border-color: var(--neon-orange);
    }

    .goal-label.orange {
        color: var(--neon-orange);
    }

    .content-card:hover.orange-hover {
        border-color: var(--neon-orange);
        box-shadow: 0 20px 60px rgba(249, 115, 22, 0.25), 0 0 30px rgba(249, 115, 22, 0.1);
        background: linear-gradient(135deg, rgba(249, 115, 22, 0.1), rgba(0, 0, 0, 0.4));
    }

    .content-number.orange {
        color: var(--neon-orange);
    }

    .content-arrow.orange {
        color: var(--neon-orange);
    }

    /* Star Card */
    .content-card.star {
        border-color: var(--neon-purple);
        background: linear-gradient(135deg,
                rgba(100, 181, 246, 0.05),
                rgba(249, 115, 22, 0.05));
    }

    /* Meta Tag Star */
    .meta-tag.star {
        background: rgba(100, 181, 246, 0.2);
        color: var(--neon-purple);
    }

    /* Background Canvas Level 3 */
    .bg-canvas-level3 {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        z-index: -1;
        background: radial-gradient(ellipse at 50% 50%,
                rgba(249, 115, 22, 0.1) 0%,
                transparent 50%);
    }

    /* ==== LEVEL CARD LAYOUT (compact) ==== */
    :root {
        --base-font-size: 0.9rem;
        /* 90% */
    }

    /* Apply base font size globally */
    body {
        font-size: var(--base-font-size);
    }

    /* Levels section container */
    .levels-section {
        padding: 1rem 0;
        /* reduce vertical padding */
    }

    /* Grid for level cards */
    .levels-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
        gap: 0.8rem;
        /* tighter spacing */
    }

    /* Individual level card */
    .level-card {
        background: var(--card-bg-solid);
        border: 1px solid var(--card-border);
        border-radius: 0.75rem;
        padding: 0.9rem;
        /* shrink inner padding */
        max-width: 260px;
        transition: all 0.2s ease;
    }

    .level-card:hover {
        transform: translateY(-4px);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        border-color: var(--card-border-hover);
    }

    /* Card text sizes */
    .level-badge {
        font-size: 0.78rem;
    }

    .level-title {
        font-size: 1.05rem;
    }

    .level-subtitle {
        font-size: 0.78rem;
    }

    .level-cta {
        color: var(--accent);
        text-decoration: underline;
        font-weight: 600;
    }

    /* =========================================
   AGGRESSIVE COMPACTING FOR LEVEL PAGES (User Request)
   ========================================= */

    /* Main Container - Reduce top padding significantly */
    .page-container {
        padding-top: 5rem !important;
        /* Reduced from likely 8rem or 6rem */
        padding-bottom: 2rem !important;
        max-width: 1000px;
        margin: 0 auto;
        padding-left: 1rem;
        padding-right: 1rem;
    }

    /* Level Hero - Tighten up */
    .level-hero {
        text-align: center;
        margin-bottom: 1.5rem !important;
        padding: 0 !important;
    }

    .level-badge {
        margin-bottom: 0.5rem !important;
    }

    .level-title {
        font-family: "M PLUS Rounded 1c", sans-serif;
        font-size: 2rem;
        font-weight: 900;
        margin-bottom: 0.25rem !important;
        /* Drastic reduction */
        line-height: 1.2;
    }

    .level-desc {
        color: var(--text-secondary);
        font-size: 1rem;
        margin-bottom: 0 !important;
    }

    /* Goal Box - Reduce margins */
    .goal-box {
        margin-bottom: 1.5rem !important;
        /* Reduced from 2rem+ */
        padding: 1rem !important;
    }

    .goal-label {
        margin-bottom: 0.25rem !important;
    }

    /* Content List */
    .content-list {
        display: flex;
        flex-direction: column;
        gap: 0.75rem !important;
        /* Tighten card gaps */
        margin-bottom: 2rem !important;
    }

    /* Content Card - Ensure compactness */
    .content-card {
        margin-bottom: 0 !important;
        /* Let gap handle it */
        padding: 0.75rem 1rem !important;
    }

    .content-info h3 {
        margin-bottom: 0.2rem !important;
    }

    .content-desc {
        margin-bottom: 0.3rem !important;
    }

    /* Navigation */
    .nav-levels {
        margin-top: 1rem !important;
        display: flex;
        justify-content: space-between;
        gap: 1rem;
    }

    .nav-level {
        flex: 1;
        text-decoration: none;
        background: var(--card-bg);
        border: 1px solid var(--card-border);
        padding: 1rem;
        border-radius: 12px;
        transition: all 0.3s ease;
    }

    .nav-level:hover {
        border-color: var(--neon-cyan);
        transform: translateY(-2px);
    }

    .nav-level-dir {
        font-size: 0.75rem;
        color: var(--text-secondary);
        margin-bottom: 0.25rem;
    }

    .nav-level-name {
        font-weight: 700;
        color: var(--text-primary);
    }

    /* Mobile adjustments */
    @media (max-width: 768px) {
        .page-container {
            padding-top: 4rem !important;
        }

        .level-title {
            font-size: 1.75rem;
        }
    }

    /* Inline Level Badge Adjustments */
    .level-title .level-badge {
        display: inline-block;
        vertical-align: middle;
        margin-bottom: 0 !important;
        margin-right: 0.75rem;
        font-size: 1rem;
        /* Slightly larger for header */
        padding: 0.3rem 1rem;
        transform: translateY(-3px);
        /* Optical alignment with text */
    }

    /* Ensure blue/orange variants work inline */
    .level-title .level-badge.blue {
        background: rgba(100, 181, 246, 0.15);
        border-color: var(--neon-cyan);
        color: var(--neon-cyan);
    }

    .level-title .level-badge.orange {
        background: rgba(255, 107, 53, 0.15);
        border-color: var(--neon-orange);
        color: var(--neon-orange);
    }

    /* =========================================
/* =========================================
   PRACTICAL MODE (Refined: High Density, Professional "Dashboard" Look)
   Target: Content pages linked from Level 1-3
   ========================================= */

    body.practical-body {
        font-size: 14px !important;
        /* Readable but compact */
        line-height: 1.5 !important;
        background: #0f172a !important;
        /* Deep Slate Blue - Professional Dark */
        color: #e2e8f0 !important;
    }

    /* Remove decorative backgrounds but keep subtle atmosphere */
    .practical-body .bg-container,
    .practical-body .bg-gradient,
    .practical-body .orb,
    .practical-body .bg-canvas-level1,
    .practical-body .bg-canvas-level2,
    .practical-body .bg-canvas-level3 {
        display: none !important;
    }

    /* Main Layout - Document Style */
    .practical-body .page-container {
        padding-top: 4rem !important;
        padding-bottom: 2rem !important;
        max-width: 1200px !important;
        /* Prevent excessive stretching */
        margin: 0 auto !important;
        padding-left: 1.5rem !important;
        padding-right: 1.5rem !important;
    }

    /* Header - Compact Pro */
    .practical-body header {
        height: 3.5rem !important;
        background: rgba(15, 23, 42, 0.95) !important;
        border-bottom: 1px solid #334155 !important;
        backdrop-filter: blur(10px);
    }

    .practical-body .header-content {
        max-width: 1200px !important;
    }

    .practical-body .logo-icon {
        width: 32px !important;
        height: 32px !important;
        font-size: 1rem !important;
    }

    /* Hero Section - Horizontal & Compact */
    .practical-body .page-header {
        display: flex !important;
        flex-direction: row !important;
        align-items: center !important;
        justify-content: space-between !important;
        text-align: left !important;
        margin-bottom: 1.5rem !important;
        padding: 1.5rem !important;
        background: #1e293b !important;
        /* Card background */
        border: 1px solid #334155 !important;
        border-radius: 12px !important;
        gap: 2rem;
    }

    .practical-body .page-title {
        font-size: 1.8rem !important;
        margin-bottom: 0 !important;
        display: flex;
        align-items: center;
        gap: 0.75rem;
        text-shadow: none !important;
        white-space: nowrap;
    }

    .practical-body .page-desc {
        font-size: 0.95rem !important;
        color: #94a3b8 !important;
        margin-bottom: 0 !important;
        line-height: 1.4 !important;
        text-align: right !important;
    }

    .practical-body .page-badge {
        display: none !important;
        /* Remove badge to save space */
    }

    /* Section Headers - Clean Line */
    .practical-body .section-title {
        font-size: 1.25rem !important;
        margin-bottom: 1rem !important;
        padding-bottom: 0.5rem;
        border-bottom: 2px solid #334155;
        color: var(--neon-cyan);
        display: flex;
        align-items: center;
    }

    /* Cards - "Data Grid" Style (Not Big Cards) */
    .practical-body .content-section,
    .practical-body .comparison-section {
        margin-bottom: 2rem !important;
    }

    .practical-body .problem-cards,
    .practical-body .tips-grid,
    .practical-body .feature-grid,
    .practical-body .usage-grid {
        display: grid !important;
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)) !important;
        gap: 1rem !important;
    }

    /* Common Card Styling for Practical Mode */
    .practical-body .problem-card,
    .practical-body .tip-card,
    .practical-body .feature-card,
    .practical-body .usage-item,
    .practical-body .key-message,
    .practical-body .recommend-box,
    .practical-body .sub-recommend,
    .practical-body .card-style-fix {
        background: #1e293b !important;
        border: 1px solid #334155 !important;
        border-radius: 8px !important;
        padding: 1rem !important;
        margin-bottom: 0 !important;
        transition: all 0.2s ease;
        text-align: left !important;
        display: flex !important;
        flex-direction: column !important;
        align-items: flex-start !important;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1) !important;
    }

    .practical-body .problem-card:hover,
    .practical-body .tip-card:hover,
    .practical-body .usage-item:hover {
        border-color: var(--neon-cyan) !important;
        transform: translateY(-2px) !important;
        background: #253045 !important;
    }

    /* Icons - Functional Size */
    .practical-body .problem-card-icon,
    .practical-body .tip-icon,
    .practical-body .why-icon,
    .practical-body .section-icon {
        font-size: 1.5rem !important;
        width: 32px !important;
        height: 32px !important;
        margin-bottom: 0.5rem !important;
        display: inline-flex !important;
        align-items: center;
        justify-content: center;
        background: transparent !important;
        border: none !important;
    }

    /* Typography Inside Cards */
    .practical-body h3,
    .practical-body h4,
    .practical-body .problem-card h4,
    .practical-body .tip-title {
        font-size: 1.1rem !important;
        font-weight: 700 !important;
        color: #f1f5f9 !important;
        margin-bottom: 0.5rem !important;
    }

    .practical-body p,
    .practical-body .problem-card p,
    .practical-body .tip-desc {
        color: #cbd5e1 !important;
        font-size: 0.9rem !important;
        line-height: 1.5 !important;
    }

    /* Tables - Data Heavy */
    .practical-body .comparison-table {
        border: 1px solid #334155 !important;
        border-radius: 8px !important;
        overflow: hidden;
    }

    /* AI Cards Grid for Practical Mode */
    .practical-body .ai-cards {
        display: grid !important;
        grid-template-columns: repeat(3, 1fr) !important;
        gap: 1.5rem !important;
        margin-bottom: 2.5rem !important;
    }

    .practical-body .ai-card {
        background: #1e293b !important;
        border: 2px solid #334155 !important;
        border-radius: 12px !important;
        padding: 1.5rem !important;
        transition: all 0.3s ease;
    }

    .practical-body .ai-card:hover {
        transform: translateY(-3px) !important;
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3) !important;
    }

    .practical-body .ai-card.claude {
        border-color: #ff6b35 !important;
    }

    .practical-body .ai-card.gemini {
        border-color: #4285f4 !important;
    }

    .practical-body .ai-card.chatgpt {
        border-color: #10a37f !important;
    }

    .practical-body .ai-header {
        display: flex !important;
        align-items: center !important;
        gap: 1rem !important;
        margin-bottom: 1rem !important;
    }

    .practical-body .ai-icon {
        width: 48px !important;
        height: 48px !important;
        border-radius: 12px !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        font-size: 1.5rem !important;
        font-weight: 900 !important;
        color: white !important;
        flex-shrink: 0 !important;
    }

    .practical-body .ai-card.claude .ai-icon {
        background: linear-gradient(135deg, #ff6b35, #ff8f66) !important;
    }

    .practical-body .ai-card.gemini .ai-icon {
        background: linear-gradient(135deg, #4285f4, #60a5fa) !important;
    }

    .practical-body .ai-card.chatgpt .ai-icon {
        background: linear-gradient(135deg, #10a37f, #34d399) !important;
    }

    .practical-body .ai-name {
        font-size: 1.2rem !important;
        font-weight: 700 !important;
        margin-bottom: 0.2rem !important;
    }

    .practical-body .ai-card.claude .ai-name {
        color: #ff6b35 !important;
    }

    .practical-body .ai-card.gemini .ai-name {
        color: #4285f4 !important;
    }

    .practical-body .ai-card.chatgpt .ai-name {
        color: #10a37f !important;
    }

    .practical-body .ai-company {
        font-size: 0.8rem !important;
        color: #94a3b8 !important;
    }

    .practical-body .ai-version {
        font-size: 0.75rem !important;
        color: #64748b !important;
    }

    .practical-body .ai-desc {
        font-size: 0.9rem !important;
        color: #cbd5e1 !important;
        line-height: 1.7 !important;
        margin-bottom: 1rem !important;
    }

    .practical-body .ai-tags {
        display: flex !important;
        flex-wrap: wrap !important;
        gap: 0.5rem !important;
    }

    .practical-body .ai-tag {
        font-size: 0.75rem !important;
        padding: 0.3rem 0.6rem !important;
        border-radius: 4px !important;
        font-weight: 600 !important;
    }

    .practical-body .ai-card.claude .ai-tag {
        background: rgba(255, 107, 53, 0.2) !important;
        color: #ff6b35 !important;
    }

    .practical-body .ai-card.gemini .ai-tag {
        background: rgba(66, 133, 244, 0.2) !important;
        color: #4285f4 !important;
    }

    .practical-body .ai-card.chatgpt .ai-tag {
        background: rgba(16, 163, 127, 0.2) !important;
        color: #10a37f !important;
    }

    /* Compare Table for Practical Mode */
    .practical-body .compare-table {
        width: 100% !important;
        border-collapse: collapse !important;
        background: #1e293b !important;
        border-radius: 8px !important;
        overflow: hidden !important;
    }

    .practical-body .compare-table th,
    .practical-body .compare-table td {
        padding: 0.75rem 1rem !important;
        text-align: center !important;
        border-bottom: 1px solid #334155 !important;
        font-size: 0.9rem !important;
    }

    .practical-body .compare-table th {
        background: rgba(0, 0, 0, 0.3) !important;
        color: #94a3b8 !important;
        font-weight: 600 !important;
    }

    .practical-body .compare-table th:first-child,
    .practical-body .compare-table td:first-child {
        text-align: left !important;
    }

    .practical-body .compare-table td:first-child {
        color: #cbd5e1 !important;
    }

    .practical-body .compare-table .best {
        color: #64b5f6 !important;
        font-weight: 700 !important;
    }

    .practical-body .compare-table .good {
        color: #a78bfa !important;
    }

    .practical-body .compare-table .normal {
        color: #94a3b8 !important;
    }

    /* Responsive AI Cards */
    @media (max-width: 1024px) {
        .practical-body .ai-cards {
            grid-template-columns: 1fr !important;
        }
    }

    /* =========================================
   PRACTICAL MODE ELEMENT POLISH
   Target: Code, Warnings, Lists in Practical Mode
   ========================================= */

    /* Code Box - Seamless Integration */
    .practical-body .code-box {
        background: #020617 !important;
        /* Extremely dark blue */
        border: 1px solid #1e293b !important;
    }

    .practical-body .code-header {
        background: #1e293b !important;
        border-bottom: 1px solid #334155 !important;
        padding: 0.5rem 1rem !important;
    }

    .practical-body .code-content {
        font-family: 'JetBrains Mono', monospace !important;
        font-size: 13px !important;
        color: #cbd5e1 !important;
        padding: 1rem !important;
    }

    /* Try It Box - From Game-like to Instruction Block */
    .practical-body .try-it-box {
        background: #1e293b !important;
        border: 1px solid #334155 !important;
        border-left: 4px solid var(--neon-green) !important;
        border-radius: 8px !important;
        padding: 1rem 1.5rem !important;
        margin-bottom: 1.5rem !important;
    }

    .practical-body .try-it-title {
        font-size: 1.1rem !important;
        color: var(--neon-green) !important;
        margin-bottom: 0.5rem !important;
    }

    .practical-body .try-it-steps li {
        border-bottom: 1px solid #334155 !important;
        padding: 0.75rem 0 !important;
    }

    .practical-body .step-number {
        width: 24px !important;
        height: 24px !important;
        font-size: 0.9rem !important;
        background: #334155 !important;
        color: white !important;
    }

    .practical-body .step-content h5 {
        font-size: 1rem !important;
        margin-bottom: 0.2rem !important;
    }

    /* Arrow Flow - Compact */
    .practical-body .flow-diagram {
        gap: 0.5rem !important;
    }

    .practical-body .flow-box {
        padding: 0.5rem !important;
        background: #1e293b !important;
        border: 1px solid #334155 !important;
    }

    .practical-body .flow-arrow {
        color: #64748b !important;
        font-size: 1.2rem !important;
    }

    /* Warnings - Professional Alert */
    .practical-body .warning-box {
        background: rgba(239, 68, 68, 0.1) !important;
        border: 1px solid rgba(239, 68, 68, 0.3) !important;
        border-radius: 8px !important;
        padding: 1rem !important;
        align-items: center !important;
    }

    .practical-body .warning-icon {
        font-size: 1.5rem !important;
    }

    .practical-body .warning-content h4 {
        color: #fca5a5 !important;
        /* Soft Red */
        margin-bottom: 0 !important;
    }

    /* =========================================
   Loop 6 FIX: TEXT OVERFLOW & TOOLTIPS & SAFETIES
   ========================================= */

    /* Prevent Text Overflow in Cards */
    .practical-body .content-card,
    .practical-body .rule-card,
    .practical-body .feature-card,
    .practical-body .step-content,
    .level-card,
    .content-item {
        word-break: break-word !important;
        overflow-wrap: break-word !important;
        height: auto !important;
        /* Allow growth */
        min-height: 0 !important;
    }

    /* Fix Flex Layouts that cause squeeze */
    .content-list,
    .rules-grid,
    .feature-grid {
        align-items: stretch !important;
    }

    /* Tooltip Polish - Ensure clean single popup */
    .term {
        cursor: help;
        border-bottom: 1px dotted var(--neon-cyan);
        position: relative;
        display: inline-block;
        /* Prevent separation */
    }

    /* Popups inside Practical Mode */
    .practical-body .term::after {
        background: #334155 !important;
        color: white !important;
        border-color: #475569 !important;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3) !important;
    }

    .practical-body th {
        background: #334155 !important;
        color: white !important;
        padding: 0.4rem 0.75rem !important;
        font-size: 0.85rem !important;
    }

    .practical-body td {
        padding: 0.4rem 0.75rem !important;
        border-bottom: 1px solid #334155 !important;
        font-size: 0.9rem !important;
        background: #1e293b !important;
    }

    /* Specific: Key Message Box -> Compact Alert */
    .practical-body .key-message {
        flex-direction: row !important;
        align-items: center !important;
        gap: 1.5rem;
        padding: 1.5rem !important;
        border: 1px solid var(--neon-cyan) !important;
        background: rgba(100, 181, 246, 0.05) !important;
    }

    .practical-body .key-message-title {
        font-size: 1.1rem !important;
        margin: 0 !important;
        white-space: nowrap;
    }

    .practical-body .key-message-text {
        font-size: 1.2rem !important;
        text-align: left !important;
    }

    /* Fix "Center Everything" layout in Security Page */
    .practical-body .problem-card {
        align-items: flex-start !important;
        /* Left align content */
        flex-direction: row !important;
        /* Icon left, text right */
        gap: 1rem;
    }

    .practical-body .problem-card-content {
        text-align: left !important;
    }

    /* Mobile Adjustments */
    @media (max-width: 768px) {
        .practical-body .page-header {
            flex-direction: column !important;
            align-items: flex-start !important;
            gap: 0.5rem;
        }

        .practical-body .page-desc {
            text-align: left !important;
        }
    }

    /* Loop 4 Polish: Compact Navigation */
    .practical-body .page-nav {
        margin-top: 2rem !important;
        border-top: 1px solid #334155 !important;
        padding-top: 1.5rem !important;
    }

    .practical-body .nav-link {
        border: 1px solid #334155 !important;
        background: #1e293b !important;
        padding: 0.75rem 1rem !important;
        border-radius: 6px !important;
    }

    .practical-body .nav-link:hover {
        background: #334155 !important;
        transform: none !important;
        /* No jumpy animation */
    }

    .practical-body .nav-direction {
        font-size: 0.75rem !important;
        color: #94a3b8 !important;
    }

    .practical-body .nav-title {
        font-size: 0.95rem !important;
        color: #f8fafc !important;
    }


    /* =========================================
   Loop 6 FIX: SECURITY PAGE SPECIFIC
   ========================================= */

    /* Hide the 'emoji' security mark */
    .practical-body .security-icon,
    .practical-body .shield-pattern {
        display: none !important;
    }

    /* Force left alignment for security hero */
    .practical-body .hero-security {
        text-align: left !important;
        align-items: flex-start !important;
        justify-content: flex-start !important;
        display: flex !important;
        flex-direction: column !important;
        padding: 0 !important;
        margin-bottom: 1.5rem !important;
        background: transparent !important;
        box-shadow: none !important;
    }

    .practical-body .hero-title {
        font-size: 1.5rem !important;
        margin-bottom: 0.5rem !important;
        text-align: left !important;
    }

    .practical-body .hero-subtitle {
        font-size: 1rem !important;
        text-align: left !important;
        color: #cbd5e1 !important;
    }

    /* Ensure invisible text is fixed globally again just in case */
    .practical-body p,
    .practical-body li,
    .practical-body span,
    .practical-body div,
    .practical-body h1,
    .practical-body h2,
    .practical-body h3,
    .practical-body h4,
    .practical-body h5,
    .practical-body .code-content {
        color: #e2e8f0 !important;
        /* Ensure readability */
    }

    .practical-body .highlight,
    .practical-body .term {
        color: var(--neon-cyan) !important;
    }

    /* === SAFETY NET: GUARANTEE VISIBILITY === */
    /* Specify every text container to ensure no browser default overrides it to black */
    .practical-body p,
    .practical-body li,
    .practical-body span,
    .practical-body div,
    .practical-body h1,
    .practical-body h2,
    .practical-body h3,
    .practical-body h4,
    .practical-body h5,
    .practical-body .code-content,
    .practical-body pre,
    .practical-body code,
    .practical-body .try-it-title,
    .practical-body .step-title,
    .practical-body .warning-content h4 {
        color: #e2e8f0 !important;
        visibility: visible !important;
        opacity: 1 !important;
    }

    /* Re-apply accents on top of safety net */
    .practical-body .highlight,
    .practical-body strong,
    .practical-body b {
        color: var(--neon-cyan) !important;
        font-weight: 700 !important;
    }

    .practical-body .highlight-bad {
        color: #fca5a5 !important;
    }

    .practical-body .highlight-good {
        color: #86efac !important;
    }

    /* Ensure Prompt Box Text is White */
    .practical-body .prompt-box,
    .practical-body .code-box {
        color: #e2e8f0 !important;
        background: #0f172a !important;
    }
}