:root {
    --bg-dark: #0e051b;
    --bg-surface: #17092e;
    --bg-card: #200d3d;
    --bg-card-hover: #29124d;
    --border-color: rgba(184, 41, 230, 0.25);
    --border-glow: rgba(200, 64, 255, 0.5);
    --primary: #b829e6;
    --primary-light: #df6aff;
    --primary-gradient: linear-gradient(135deg, #d52cff 0%, #8d35ff 100%);
    --gold-gradient: linear-gradient(135deg, #ffd700 0%, #ff8c00 100%);
    --accent-gold: #ffc107;
    --accent-cyan: #00f0ff;
    --text-primary: #fbf5ff;
    --text-secondary: #c9b9db;
    --text-muted: #8d7e9e;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-serif: Georgia, 'Times New Roman', serif;
    --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 25px rgba(184, 41, 230, 0.35);
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent !important;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0) !important;
}

*:focus, *:active, *:focus-visible {
    outline: none !important;
    -webkit-tap-highlight-color: transparent !important;
}

a, button, input, select, textarea, div, span, label, p, summary, .btn, .faq-question, .toc-header, .gallery-card, [tabindex] {
    -webkit-tap-highlight-color: transparent !important;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0) !important;
    outline: none !important;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

:focus-visible {
    outline: 2px solid var(--primary-light) !important;
    outline-offset: 3px !important;
}

.skip-link {
    position: absolute;
    top: -100px;
    left: 16px;
    background: var(--primary-gradient);
    color: #fff !important;
    padding: 10px 18px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 13px;
    z-index: 99999;
    transition: top 0.25s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.skip-link:focus {
    top: 16px;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-dark);
    color: var(--text-secondary);
    line-height: 1.7;
    overflow-x: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--primary-light);
    text-decoration: none;
    transition: all 0.25s ease;
}

a:hover {
    color: #fff;
}

.container {
    width: calc(100% - 32px);
    max-width: 1080px;
    margin: 0 auto;
}

/* Announcement */
.announcement-bar {
    background: linear-gradient(90deg, var(--primary), var(--primary-light), var(--primary));
    background-size: 200% auto;
    animation: gradientShift 6s linear infinite;
    color: #fff;
    padding: 9px 16px;
    font-size: 13px;
    font-weight: 600;
    text-align: center;
}

.announcement-bar a {
    color: var(--secondary);
    text-decoration: underline;
    margin-left: 6px;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--header-bg, rgba(14, 5, 27, 0.88));
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border-color);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-logo img {
    height: 48px;
    width: auto;
    max-width: 170px;
    object-fit: contain;
    display: block;
}

.brand-logo-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 22px;
    font-weight: 800;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.brand-logo-badge .brand-logo-icon {
    font-size: 24px;
}

.brand-logo-badge .brand-logo-text {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.header-cta {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 9px 20px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    border: none;
    transition: all 0.25s ease;
    text-align: center;
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary-gradient);
    color: #fff;
    box-shadow: 0 4px 18px var(--primary-glow);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px var(--primary-glow);
    color: #fff;
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.btn-gold {
    background: var(--gold-gradient);
    color: #120421;
    font-weight: 800;
    box-shadow: 0 4px 18px rgba(255, 193, 7, 0.35);
}

.btn-gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(255, 193, 7, 0.6);
    color: #000;
}

.btn-lg {
    padding: 13px 28px;
    font-size: 15px;
    border-radius: 10px;
}

/* Hero Section */
.hero-section {
    padding: 55px 0 40px;
    text-align: center;
    position: relative;
    background: radial-gradient(circle at 50% 10%, var(--primary-soft) 0%, transparent 55%), var(--bg-dark);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: var(--primary-soft);
    border: 1px solid var(--border-color);
    border-radius: 30px;
    font-size: 12px;
    font-weight: 700;
    color: var(--primary-light);
    margin-bottom: 22px;
}

.hero-badge .pulse {
    width: 8px;
    height: 8px;
    background: #00ff88;
    border-radius: 50%;
    box-shadow: 0 0 10px #00ff88;
}

.hero-logo-wrap {
    margin: 0 auto 20px;
    width: 140px;
    height: 140px;
    position: relative;
}

.hero-logo-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 26px;
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.4), 0 0 30px var(--primary-glow);
    border: 2px solid rgba(255, 255, 255, 0.15);
    animation: floatAnim 4s ease-in-out infinite;
}

.hero-logo-dynamic {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 2px solid var(--border-glow);
    border-radius: 26px;
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.4), 0 0 30px var(--primary-glow);
    animation: floatAnim 4s ease-in-out infinite;
}

.hero-logo-dynamic-icon {
    font-size: 42px;
    line-height: 1;
}

.hero-logo-dynamic-text {
    font-size: 16px;
    font-weight: 800;
    color: var(--text-primary);
    margin-top: 6px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

@keyframes floatAnim {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 42px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.25;
    margin-bottom: 16px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.hero-desc {
    max-width: 740px;
    margin: 0 auto 26px;
    font-size: 15px;
    color: var(--text-secondary);
}

.hero-desc strong {
    color: var(--text-primary);
}

.hero-cta-group {
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 34px;
}

/* Stats ticker */
.stats-ticker {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    max-width: 900px;
    margin: 0 auto;
}

.stat-box {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 14px;
    text-align: center;
    transition: transform 0.25s ease;
}

.stat-box:hover {
    transform: translateY(-3px);
    border-color: var(--primary);
}

.stat-box .stat-num {
    font-size: 18px;
    font-weight: 800;
    color: var(--text-primary);
    display: block;
}

.stat-box .stat-sub {
    font-size: 11px;
    color: var(--text-muted);
}

/* Sections */
.section {
    padding: 36px 0;
    scroll-margin-top: 85px;
}

.hero-section {
    scroll-margin-top: 85px;
}

.section-title {
    font-family: var(--font-serif);
    font-size: 26px;
    color: var(--text-primary);
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-title::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 22px;
    background: var(--primary-gradient);
    border-radius: 2px;
}

.section-title-center {
    justify-content: center;
    text-align: center;
}

.section-title-center::before {
    display: none;
}

.section-subtitle {
    text-align: center;
    font-size: 14px;
    color: var(--text-muted);
    margin-top: -10px;
    margin-bottom: 24px;
}

/* Content Box */
.content-box {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-card);
}

.content-box p {
    margin-bottom: 14px;
    font-size: 14px;
}

.content-box p:last-child {
    margin-bottom: 0;
}

/* Spec Info Table */
.spec-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.spec-item {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 14px 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.spec-label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 13px;
    color: var(--text-primary);
}

.spec-val {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Table of Contents */
.toc-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 18px 22px;
    margin-bottom: 26px;
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.toc-card:hover {
    border-color: var(--border-glow);
}

.toc-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    user-select: none;
    -webkit-tap-highlight-color: transparent !important;
}

.toc-header h3,
.toc-header .toc-title {
    font-size: 16px;
    font-family: inherit;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    font-weight: 700;
}

.toc-toggle-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--primary-soft);
    border: 1px solid var(--border-color);
    font-size: 10px;
    color: var(--primary-light);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.2s ease, border-color 0.2s ease;
}

.toc-header:hover .toc-toggle-icon {
    background: var(--primary-soft);
    border-color: var(--primary);
    color: var(--text-primary);
}

.toc-card.open .toc-toggle-icon {
    transform: rotate(180deg);
}

.toc-collapse-wrap {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
    opacity: 0;
}

.toc-card.open .toc-collapse-wrap {
    grid-template-rows: 1fr;
    opacity: 1;
}

.toc-collapse-inner {
    overflow: hidden;
}

.toc-list {
    list-style: none;
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px 18px;
}

.toc-list li a {
    font-size: 13px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
    transition: color 0.2s ease, transform 0.2s ease;
    -webkit-tap-highlight-color: transparent !important;
}

.toc-list li a:hover {
    color: var(--text-primary);
    transform: translateX(4px);
}

.toc-num {
    color: var(--primary-light);
    font-weight: 700;
    font-size: 11px;
}

/* Steps Grid */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.step-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px 20px 20px 65px;
    position: relative;
    transition: transform 0.25s, border-color 0.25s;
}

.step-card:hover {
    transform: translateY(-2px);
    border-color: var(--primary);
}

.step-badge {
    position: absolute;
    left: 18px;
    top: 20px;
    width: 34px;
    height: 34px;
    background: var(--bg-card);
    border: 2px solid var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 800;
    color: var(--text-primary);
    box-shadow: 0 0 10px var(--primary-glow);
}

.step-card h3 {
    font-family: var(--font-serif);
    font-size: 16px;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.step-card p {
    font-size: 13px;
    color: var(--text-secondary);
}

/* Payment Grid */
.payment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 16px;
}

.payment-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    transition: transform 0.25s, border-color 0.25s;
}

.payment-card:hover {
    transform: translateY(-3px);
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.payment-icon {
    font-size: 26px;
    margin-bottom: 10px;
}

.payment-card h3 {
    font-family: var(--font-serif);
    font-size: 17px;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.payment-badge {
    display: inline-block;
    background: var(--primary-soft);
    border: 1px solid var(--border-color);
    color: var(--primary-light);
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 700;
    margin-bottom: 8px;
}

.payment-card p {
    font-size: 12px;
    color: var(--text-muted);
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.feature-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px 18px;
    text-align: center;
    transition: transform 0.25s, border-color 0.25s;
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.feature-icon-wrap {
    width: 52px;
    height: 52px;
    margin: 0 auto 14px;
    background: var(--primary-soft);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: var(--primary-light);
}

.feature-card h3 {
    font-family: var(--font-serif);
    font-size: 16px;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Notice Box */
.notice-box {
    margin: 22px 0;
    padding: 16px 20px;
    background: var(--primary-soft);
    border-left: 4px solid var(--primary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 13px;
    color: var(--text-secondary);
}

.notice-box strong {
    color: var(--text-primary);
}

/* Gallery Section (User Requested Feature) */
.gallery-section {
    padding: 45px 0;
    background: radial-gradient(circle at 50% 50%, var(--primary-soft) 0%, transparent 60%);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.gallery-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
    cursor: pointer;
}

.gallery-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-light);
    box-shadow: 0 12px 30px rgba(0,0,0,0.5), var(--shadow-glow);
}

.gallery-img-wrap {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: #000;
}

.gallery-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.gallery-card:hover .gallery-img-wrap img {
    transform: scale(1.08);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: rgba(14, 5, 27, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.25s ease;
}

.gallery-card:hover .gallery-overlay {
    opacity: 1;
}

.gallery-zoom-icon {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--primary-gradient);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.5);
}

.gallery-info {
    padding: 14px 16px;
}

.gallery-info h3 {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.gallery-info p {
    font-size: 12px;
    color: var(--text-muted);
}

/* Lightbox Modal */
.lightbox-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.92);
    backdrop-filter: blur(10px);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.lightbox-modal.active {
    display: flex;
}

.lightbox-content {
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 80vh;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    box-shadow: 0 0 40px var(--primary-glow);
}

.lightbox-caption {
    margin-top: 12px;
    color: #fff;
    font-size: 14px;
    text-align: center;
}

.lightbox-close {
    position: absolute;
    top: -45px;
    right: 0;
    background: transparent;
    border: none;
    color: #fff;
    font-size: 32px;
    cursor: pointer;
    line-height: 1;
}

/* FAQ Accordion */
.faq-box {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.faq-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

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

.faq-question {
    padding: 18px 24px;
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: background 0.2s;
    user-select: none;
}

.faq-question:hover {
    background: var(--primary-soft);
    color: var(--text-primary);
}

.faq-icon {
    font-size: 18px;
    color: var(--primary-light);
    transition: transform 0.25s ease;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 24px 18px;
    font-size: 14px;
    color: var(--text-secondary);
    display: none;
    line-height: 1.7;
}

.faq-item.active .faq-answer {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Footer */
.site-footer {
    background: var(--bg-footer, #090312);
    border-top: 1px solid var(--border-color);
    padding: 36px 0 24px;
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 14px;
}

.footer-brand img {
    width: 36px;
    height: 36px;
    border-radius: 8px;
}

.footer-brand-badge {
    font-size: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.footer-brand span {
    font-size: 18px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: 0.5px;
}

.footer-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px 20px;
    margin-bottom: 16px;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 13px;
}

.footer-links a:hover {
    color: var(--text-primary);
}

.footer-copy {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.footer-disclaimer {
    max-width: 720px;
    margin: 0 auto;
    font-size: 11px;
    color: var(--text-muted);
    line-height: 1.5;
    padding-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* Mobile sticky bottom bar */
.mobile-bottom-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bottom-nav-bg, rgba(14, 5, 27, 0.95));
    backdrop-filter: blur(12px);
    border-top: 1px solid var(--border-color);
    padding: 10px 16px;
    display: none;
    z-index: 99;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.6);
}

.mobile-bottom-inner {
    display: flex;
    gap: 10px;
    max-width: 500px;
    margin: 0 auto;
}

.mobile-bottom-inner .btn {
    flex: 1;
    padding: 11px 8px;
    font-size: 13px;
}

/* Back to Top */
.scroll-top-btn {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 44px;
    height: 44px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    cursor: pointer;
    box-shadow: var(--shadow-card);
    transition: all 0.25s ease;
    opacity: 0;
    visibility: hidden;
    z-index: 90;
}

.scroll-top-btn.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top-btn:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

/* Responsive */
@media(max-width: 900px) {
    .hero-title { font-size: 34px; }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-ticker { grid-template-columns: repeat(2, 1fr); }
}

@media(max-width: 700px) {
    .header-inner { height: 60px; }
    .brand-logo img { height: 38px; }
    .hero-title { font-size: 28px; }
    .hero-logo-wrap { width: 110px; height: 110px; }
    .spec-grid, .steps-grid, .features-grid, .toc-list { grid-template-columns: 1fr; }
    .mobile-bottom-bar { display: block; }
    body { padding-bottom: 60px; }
    .scroll-top-btn { bottom: 75px; right: 16px; }
}

@media(max-width: 480px) {
    .hero-cta-group { flex-direction: column; }
    .hero-cta-group .btn { width: 100%; }
}