.page-back-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 22px;
    font-size: 0.9rem;
    font-weight: 500;
    font-family: var(--font-family);
    color: var(--text-sub);
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: absolute;
    top: 24px;
    left: 24px;
    z-index: 10;
}

.page-back-btn .back-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-color), var(--cta-color));
    color: white;
    font-size: 0.75rem;
    transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    flex-shrink: 0;
}

.page-back-btn .back-text {
    transition: color 0.3s ease;
}

.page-back-btn:hover {
    color: var(--accent-color);
    background: var(--accent-light);
    border-color: rgba(127, 90, 240, 0.3);
    transform: translateX(-4px);
    box-shadow: 0 4px 20px rgba(127, 90, 240, 0.2),
        0 0 0 1px rgba(127, 90, 240, 0.1);
}

.page-back-btn:hover .back-icon {
    transform: translateX(-3px);
    box-shadow: 0 2px 12px rgba(127, 90, 240, 0.4);
}

.page-back-btn:active {
    transform: translateX(-2px) scale(0.97);
}

@media (max-width: 767px) {
    .page-back-btn {
        top: 16px;
        left: 16px;
        padding: 8px 16px;
        font-size: 0.82rem;
    }

    .page-back-btn .back-icon {
        width: 24px;
        height: 24px;
        font-size: 0.7rem;
    }

    .page-back-btn .back-text {
        display: none;
    }
}

.page-hero {
    position: relative;
    padding: var(--spacing-3xl) 0;
    text-align: center;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(127, 90, 240, 0.08) 0%, rgba(44, 182, 125, 0.08) 50%, rgba(127, 90, 240, 0.04) 100%);
    border-bottom: 1px solid var(--border-color);
}

.page-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(127, 90, 240, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 70% 50%, rgba(44, 182, 125, 0.06) 0%, transparent 50%);
    animation: heroFloat 15s ease-in-out infinite;
    pointer-events: none;
}

@keyframes heroFloat {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }

    33% {
        transform: translate(2%, -2%) rotate(1deg);
    }

    66% {
        transform: translate(-1%, 1%) rotate(-0.5deg);
    }
}

.page-hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.page-hero-icon {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto var(--spacing-lg);
    background: linear-gradient(135deg, var(--accent-color), var(--cta-color));
    color: white;
    box-shadow: 0 8px 32px rgba(127, 90, 240, 0.3);
    animation: iconPulse 3s ease-in-out infinite;
}

@keyframes iconPulse {

    0%,
    100% {
        transform: scale(1);
        box-shadow: 0 8px 32px rgba(127, 90, 240, 0.3);
    }

    50% {
        transform: scale(1.05);
        box-shadow: 0 12px 40px rgba(127, 90, 240, 0.4);
    }
}

.page-hero h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: var(--font-bold);
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--accent-color), var(--cta-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-hero .page-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-sub);
    line-height: var(--leading-relaxed);
    max-width: 600px;
    margin: 0 auto var(--spacing-md);
}

.page-hero .page-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.page-hero .page-meta i {
    margin-right: 4px;
    color: var(--accent-color);
}

.page-content {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-3xl) var(--container-padding);
}

.page-toc {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
    position: relative;
    overflow: hidden;
}

.page-toc::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-color), var(--cta-color));
}

.page-toc h2 {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    color: var(--text-main);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.page-toc h2 i {
    color: var(--accent-color);
}

.page-toc ol {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-xs);
}

.page-toc ol li {
    counter-increment: toc-counter;
}

.page-toc ol li a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.5rem 0.75rem;
    color: var(--text-sub);
    font-size: var(--text-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    text-decoration: none;
}

.page-toc ol li a::before {
    content: counter(toc-counter) ".";
    font-weight: var(--font-semibold);
    color: var(--accent-color);
    min-width: 24px;
}

.page-toc ol li a:hover {
    background: var(--accent-light);
    color: var(--accent-color);
    transform: translateX(4px);
}

.content-section {
    margin-bottom: var(--spacing-2xl);
    scroll-margin-top: 100px;
}

.content-section h2 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: var(--font-bold);
    color: var(--text-main);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.content-section h2 .section-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    background: var(--accent-light);
    color: var(--accent-color);
    font-size: var(--text-sm);
    font-weight: var(--font-bold);
    flex-shrink: 0;
}

.content-section h3 {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    color: var(--text-main);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.content-section h4 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-main);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.content-section p {
    font-size: var(--text-base);
    color: var(--text-sub);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--spacing-md);
}

.content-section ul,
.content-section ol {
    padding-left: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.content-section ul li,
.content-section ol li {
    font-size: var(--text-base);
    color: var(--text-sub);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--spacing-sm);
    position: relative;
}

.content-section ul li::marker {
    color: var(--accent-color);
}

.content-section ol li::marker {
    color: var(--accent-color);
    font-weight: var(--font-semibold);
}

.info-box {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--accent-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.info-box.success {
    border-left-color: var(--cta-color);
}

.info-box.warning {
    border-left-color: #ED8936;
}

.info-box.danger {
    border-left-color: #EF4565;
}

.info-box h4 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--text-main);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.info-box h4 i {
    color: var(--accent-color);
}

.info-box.success h4 i {
    color: var(--cta-color);
}

.info-box.warning h4 i {
    color: #ED8936;
}

.info-box.danger h4 i {
    color: #EF4565;
}

.info-box p {
    margin-bottom: 0;
    font-size: var(--text-sm);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.contact-info-cards {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-info-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    transition: all var(--transition-base);
}

.contact-info-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(127, 90, 240, 0.12);
}

.contact-info-card .card-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
    color: white;
}

.contact-info-card .card-icon.email-icon {
    background: linear-gradient(135deg, #7F5AF0, #6D44E8);
}

.contact-info-card .card-icon.location-icon {
    background: linear-gradient(135deg, #2CB67D, #25A06A);
}

.contact-info-card .card-icon.phone-icon {
    background: linear-gradient(135deg, #38B2AC, #2C7A7B);
}

.contact-info-card .card-icon.clock-icon {
    background: linear-gradient(135deg, #ED8936, #C05621);
}

.contact-info-card .card-details h3 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-main);
    margin-bottom: 4px;
    margin-top: 0;
}

.contact-info-card .card-details p {
    color: var(--text-sub);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    margin-bottom: 0;
}

.contact-info-card .card-details a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.contact-info-card .card-details a:hover {
    color: var(--accent-hover);
}

.contact-form-wrapper {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    position: relative;
    overflow: hidden;
}

.contact-form-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-color), var(--cta-color));
}

.contact-form-wrapper h2 {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-main);
    margin-bottom: var(--spacing-sm);
    border: none;
    padding-bottom: 0;
}

.contact-form-wrapper .form-subtitle {
    color: var(--text-sub);
    font-size: var(--text-sm);
    margin-bottom: var(--spacing-xl);
}

.contact-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.contact-form .form-group {
    margin-bottom: var(--spacing-lg);
}

.contact-form .form-group label {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-main);
    margin-bottom: var(--spacing-sm);
}

.contact-form .form-group label .required {
    color: #EF4565;
}

.contact-form .form-group input,
.contact-form .form-group select,
.contact-form .form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: var(--text-base);
    font-family: var(--font-family);
    color: var(--text-main);
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    min-height: 48px;
}

.contact-form .form-group input:focus,
.contact-form .form-group select:focus,
.contact-form .form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.contact-form .form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.contact-form .submit-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.875rem 2.5rem;
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    font-family: var(--font-family);
    color: white;
    background: linear-gradient(135deg, var(--accent-color), var(--cta-color));
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    min-height: 52px;
    width: 100%;
}

.contact-form .submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(127, 90, 240, 0.3);
}

.contact-form .submit-btn:active {
    transform: translateY(0);
}

.form-message {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    margin-top: var(--spacing-md);
    display: none;
}

.form-message.success {
    background: rgba(44, 182, 125, 0.1);
    border: 1px solid rgba(44, 182, 125, 0.3);
    color: var(--cta-color);
}

.form-message.error {
    background: rgba(239, 69, 101, 0.1);
    border: 1px solid rgba(239, 69, 101, 0.3);
    color: #EF4565;
}

.faq-section {
    margin-top: var(--spacing-2xl);
}

.faq-section h2 {
    text-align: center;
    font-size: var(--text-2xl);
    margin-bottom: var(--spacing-xl);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: var(--spacing-lg);
}

.faq-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
}

.faq-item:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.faq-item h3 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--text-main);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.faq-item h3 i {
    color: var(--accent-color);
    margin-top: 3px;
    flex-shrink: 0;
}

.faq-item p {
    color: var(--text-sub);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    margin-bottom: 0;
    padding-left: calc(var(--spacing-sm) + 1.25rem);
}

.about-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.about-feature-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
    transition: all var(--transition-base);
}

.about-feature-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(127, 90, 240, 0.12);
}

.about-feature-card .feature-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto var(--spacing-md);
    color: white;
}

.about-feature-card .feature-icon.purple {
    background: linear-gradient(135deg, #7F5AF0, #6D44E8);
}

.about-feature-card .feature-icon.green {
    background: linear-gradient(135deg, #2CB67D, #25A06A);
}

.about-feature-card .feature-icon.blue {
    background: linear-gradient(135deg, #38B2AC, #2C7A7B);
}

.about-feature-card .feature-icon.orange {
    background: linear-gradient(135deg, #ED8936, #C05621);
}

.about-feature-card .feature-icon.pink {
    background: linear-gradient(135deg, #E040FB, #9F7AEA);
}

.about-feature-card .feature-icon.teal {
    background: linear-gradient(135deg, #48BB78, #276749);
}

.about-feature-card h3 {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-main);
    margin-bottom: var(--spacing-sm);
}

.about-feature-card p {
    font-size: var(--text-sm);
    color: var(--text-sub);
    line-height: var(--leading-relaxed);
    margin-bottom: 0;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, rgba(127, 90, 240, 0.06) 0%, rgba(44, 182, 125, 0.06) 100%);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
}

.about-stat {
    text-align: center;
    padding: var(--spacing-md);
}

.about-stat .stat-value {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: var(--font-bold);
    color: var(--accent-color);
    margin-bottom: 4px;
}

.about-stat .stat-label {
    font-size: var(--text-sm);
    color: var(--text-sub);
}

.breadcrumbs {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) 0;
    font-size: var(--text-sm);
    color: var(--text-muted);
    max-width: 900px;
    margin: 0 auto;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

.breadcrumbs a {
    color: var(--text-sub);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumbs a:hover {
    color: var(--accent-color);
}

.breadcrumbs .separator {
    color: var(--text-muted);
    font-size: 0.75rem;
}

.breadcrumbs .current {
    color: var(--accent-color);
    font-weight: var(--font-medium);
}

.page-cta-banner {
    background: linear-gradient(135deg, rgba(127, 90, 240, 0.08) 0%, rgba(44, 182, 125, 0.08) 100%);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    text-align: center;
    margin: var(--spacing-2xl) 0;
}

.page-cta-banner h2 {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-main);
    margin-bottom: var(--spacing-sm);
    border: none;
    padding-bottom: 0;
}

.page-cta-banner p {
    font-size: var(--text-base);
    color: var(--text-sub);
    margin-bottom: var(--spacing-lg);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.page-cta-banner .cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

@media (max-width: 767px) {
    .page-hero {
        padding: var(--spacing-2xl) 0;
    }

    .page-hero-icon {
        width: 64px;
        height: 64px;
        font-size: 1.5rem;
    }

    .page-content {
        padding: var(--spacing-2xl) var(--container-padding);
    }

    .page-toc ol {
        grid-template-columns: 1fr;
    }

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

    .contact-form .form-row {
        grid-template-columns: 1fr;
    }

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

    .about-features-grid {
        grid-template-columns: 1fr;
    }

    .breadcrumbs {
        flex-wrap: wrap;
    }

    .page-cta-banner {
        padding: var(--spacing-xl);
    }
}

@media (min-width: 768px) and (max-width: 1023px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }

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