:root {
    --text-dark: #1f2933;
    --bg-light: #ffffff;
    --muted: #6b7280;
    --border: #d1d5db;
    --accent: #2563eb;
}

.kurobbs-page {
    min-height: 100vh;
    margin: 0;
    font-family: 'Noto Sans SC', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: #f8f9fb;
    color: var(--text-dark);
}

.kurobbs-container {
    width: min(900px, 95vw);
    margin: 0 auto;
    padding: 32px 0 48px;
}

.kurobbs-shell {
    background: var(--bg-light);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: clamp(20px, 4vw, 36px);
}

.hero-panel h1 {
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    margin: 0 0 12px;
    color: var(--text-dark);
}

.hero-panel h1 span::before {
    content: '🌿 ';
}

.hero-meta {
    margin: 12px 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.step-section {
    margin-top: 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.step-card {
    border: 1px solid var(--border);
    border-radius: 12px;
    background: #fff;
}

.step-heading {
    border-bottom: 1px solid var(--border);
    padding: 16px;
}

.step-body {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.step-number {
    display: inline-flex;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1px solid var(--border);
    align-items: center;
    justify-content: center;
    font-weight: 600;
    margin-right: 12px;
}

.hero-panel h4,
.step-body h4 {
    margin: 6px 0;
    font-size: 1rem;
    color: var(--text-dark);
}

.tip-box,
.warning-text,
.info-pill {
    background: #f5f6f8;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 10px 12px;
    font-size: 0.95rem;
}

.tip-grid {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.guide-img {
    width: 100%;
    border-radius: 8px;
    border: 1px solid var(--border);
    display: block;
    margin: 0 auto;
}

.bot-box,
.info-panel {
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
    background: #fafafa;
}

.info-panel h2 {
    margin-top: 0;
}

.back-button {
    position: fixed;
    top: 16px;
    left: 16px;
    background: #fff;
    color: var(--text-dark);
    padding: 8px 16px;
    border-radius: 8px;
    border: 1px solid var(--border);
    text-decoration: none;
    font-weight: 600;
}

@media (max-width: 768px) {
    .kurobbs-container {
        padding: 16px 0 32px;
    }

    .kurobbs-shell {
        padding: 16px;
    }

    .back-button {
        position: static;
        display: inline-block;
        margin-bottom: 12px;
    }
}