/* ========================================
   Theme15 - Gradient Flow Design
   Vibrant gradients with flowing modern style
   ======================================== */

/* 1. CSS Custom Properties */
:root {
    --t15-primary: #8B5CF6;
    --t15-primary-light: #A78BFA;
    --t15-primary-dark: #7C3AED;
    --t15-secondary: #EC4899;
    --t15-accent: #06B6D4;
    --t15-gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --t15-gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --t15-gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --t15-gradient-main: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    --t15-text: #1F2937;
    --t15-text-secondary: #4B5563;
    --t15-text-light: #9CA3AF;
    --t15-text-inverse: #FFFFFF;
    --t15-bg: #FFFFFF;
    --t15-bg-alt: #F9FAFB;
    --t15-bg-gradient: linear-gradient(180deg, #F5F3FF 0%, #FDF2F8 50%, #ECFEFF 100%);
    --t15-card-bg: rgba(255, 255, 255, 0.9);
    --t15-border: rgba(139, 92, 246, 0.2);
    --t15-shadow: 0 10px 40px rgba(139, 92, 246, 0.15);
    --t15-shadow-lg: 0 20px 60px rgba(139, 92, 246, 0.2);
    --t15-radius: 24px;
    --t15-radius-sm: 16px;
    --t15-radius-lg: 32px;
    --t15-radius-full: 9999px;
    --t15-font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    --t15-header-h: 80px;
}

/* 2. Reset / Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}
body {
    font-family: var(--t15-font);
    color: var(--t15-text);
    background: var(--t15-bg-gradient);
    background-attachment: fixed;
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
a {
    color: var(--t15-primary);
    text-decoration: none;
    transition: all 0.3s ease;
}
a:hover {
    color: var(--t15-primary-dark);
}
ul, ol {
    list-style: none;
}
table {
    border-collapse: collapse;
    width: 100%;
}

/* 3. Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--t15-text);
    line-height: 1.3;
    font-weight: 700;
}
h1 { font-size: 2.5rem; margin-bottom: 20px; }
h2 { font-size: 1.75rem; margin-bottom: 16px; }
h3 { font-size: 1.35rem; margin-bottom: 14px; }
h4 { font-size: 1.15rem; margin-bottom: 12px; }
p {
    color: var(--t15-text-secondary);
    margin-bottom: 16px;
    line-height: 1.8;
}
b, strong {
    font-weight: 600;
    color: var(--t15-text);
}

/* 4. Layout */
.t15-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
.t15-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 5. Header */
.t15-header {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--t15-border);
    height: var(--t15-header-h);
    position: sticky;
    top: 0;
    z-index: 1000;
}
.t15-header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}
.t15-logo {
    font-size: 1.6rem;
    font-weight: 800;
    background: var(--t15-gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.t15-logo:hover {
    background: var(--t15-gradient-2);
    -webkit-background-clip: text;
    background-clip: text;
}

/* 6. Navigation */
.t15-nav {
    display: flex;
    gap: 8px;
}
.t15-nav ul {
    display: contents;
}
.t15-nav li {
    list-style: none;
}
.t15-nav a {
    padding: 10px 22px;
    color: var(--t15-text-secondary);
    font-weight: 600;
    border-radius: var(--t15-radius-full);
    transition: all 0.3s ease;
    position: relative;
}
.t15-nav a:hover {
    color: var(--t15-text-inverse);
    background: var(--t15-gradient-1);
}
.t15-nav a.active {
    color: var(--t15-text-inverse);
    background: var(--t15-gradient-1);
}

/* 7. Mobile Menu Toggle */
.t15-menu-toggle {
    display: none;
}
.t15-menu-btn {
    display: none;
    width: 48px;
    height: 48px;
    background: var(--t15-gradient-1);
    border: none;
    border-radius: var(--t15-radius-sm);
    cursor: pointer;
    position: relative;
    z-index: 1001;
}
.t15-menu-btn span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--t15-text-inverse);
    margin: 5px auto;
    transition: all 0.3s ease;
    border-radius: 2px;
}

/* 8. Main Section */
.t15-section {
    padding: 60px 0;
    flex: 1;
}

/* 9. Hero / Banner */
.t15-hero {
    margin-bottom: 60px;
}
.t15-hero-single {
    height: 450px;
    background-size: cover;
    background-position: center;
    border-radius: var(--t15-radius-lg);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: 40px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--t15-shadow-lg);
}
.t15-hero-single::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.7), transparent 60%);
    border-radius: var(--t15-radius-lg);
}
.t15-hero-single::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(139,92,246,0.3) 0%, transparent 70%);
    pointer-events: none;
}
.t15-hero-single a {
    position: relative;
    z-index: 1;
    color: var(--t15-text-inverse);
    font-size: 1.8rem;
    font-weight: 700;
    padding: 16px 36px;
    background: var(--t15-gradient-1);
    border-radius: var(--t15-radius-full);
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.4);
}
.t15-hero-grid {
    display: grid;
    gap: 24px;
}
.t15-hero-grid.row-1 { grid-template-columns: 1fr; }
.t15-hero-grid.row-2 { grid-template-columns: repeat(2, 1fr); }
.t15-hero-grid.row-3 { grid-template-columns: repeat(3, 1fr); }
.t15-hero-grid.row-4 { grid-template-columns: repeat(4, 1fr); }
.t15-hero-item {
    border-radius: var(--t15-radius);
    overflow: hidden;
    background: var(--t15-card-bg);
    box-shadow: var(--t15-shadow);
    transition: all 0.4s ease;
    position: relative;
}
.t15-hero-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--t15-gradient-1);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 1;
    pointer-events: none;
}
.t15-hero-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--t15-shadow-lg);
}
.t15-hero-item:hover::before {
    opacity: 0.1;
}
.t15-hero-item a {
    display: block;
}
.t15-hero-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}
.t15-hero-item span {
    display: block;
    padding: 18px;
    text-align: center;
    color: var(--t15-text);
    font-weight: 600;
}

/* 10. Section Title */
.t15-section-title {
    margin-bottom: 40px;
    text-align: center;
}
.t15-section-title h2 {
    display: inline-block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--t15-text-inverse);
    padding: 14px 36px;
    background: var(--t15-gradient-1);
    border-radius: var(--t15-radius-full);
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.3);
}
.t15-section-title h2 a {
    color: inherit;
}

/* 11. Module */
.t15-module {
    margin-bottom: 60px;
}

/* 12. Contact + Intro Module */
.t15-contact-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}
.t15-contact-card,
.t15-intro-card {
    background: var(--t15-card-bg);
    border-radius: var(--t15-radius);
    padding: 32px;
    box-shadow: var(--t15-shadow);
    position: relative;
    overflow: hidden;
}
.t15-contact-card::before,
.t15-intro-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--t15-gradient-1);
}
.t15-contact-card h3,
.t15-intro-card h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    background: var(--t15-gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.t15-contact-card p {
    margin-bottom: 12px;
    color: var(--t15-text-secondary);
}
.t15-intro-card p {
    color: var(--t15-text-secondary);
    line-height: 1.9;
}

/* 13. Product Grid */
.t15-product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
}
.t15-product-card {
    background: var(--t15-card-bg);
    border-radius: var(--t15-radius);
    overflow: hidden;
    box-shadow: var(--t15-shadow);
    transition: all 0.4s ease;
    position: relative;
}
.t15-product-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--t15-gradient-1);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 1;
    pointer-events: none;
}
.t15-product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--t15-shadow-lg);
}
.t15-product-card:hover::before {
    opacity: 0.08;
}
.t15-product-img {
    display: block;
    overflow: hidden;
}
.t15-product-img img {
    width: 100%;
    height: 190px;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.t15-product-card:hover .t15-product-img img {
    transform: scale(1.1);
}
.t15-product-body {
    padding: 20px;
}
.t15-product-name {
    font-size: 1rem;
    font-weight: 600;
}
.t15-product-name a {
    color: var(--t15-text);
}
.t15-product-name a:hover {
    background: var(--t15-gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.t15-product-time {
    font-size: 0.8rem;
    color: var(--t15-text-light);
    margin-top: 8px;
}

/* 14. Information Module */
.t15-info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}
.t15-info-card {
    background: var(--t15-card-bg);
    border-radius: var(--t15-radius);
    padding: 32px;
    box-shadow: var(--t15-shadow);
    position: relative;
    overflow: hidden;
}
.t15-info-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--t15-gradient-2);
}
.t15-info-card h3 {
    font-size: 1.15rem;
    margin-bottom: 20px;
    background: var(--t15-gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.t15-info-card p {
    margin-bottom: 12px;
    color: var(--t15-text-secondary);
    font-size: 0.95rem;
}
.t15-info-card b {
    color: var(--t15-text);
}

/* 15. Information Table Layout */
.t15-info-table {
    background: var(--t15-card-bg);
    border-radius: var(--t15-radius);
    padding: 32px;
    box-shadow: var(--t15-shadow);
    position: relative;
    overflow: hidden;
}
.t15-info-table::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--t15-gradient-1);
}
.t15-info-table h3 {
    font-size: 1.3rem;
    margin-bottom: 28px;
    background: var(--t15-gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.t15-info-table table {
    width: 100%;
}
.t15-info-table td {
    padding: 16px;
    border-bottom: 1px solid var(--t15-border);
}
.t15-info-table tr:last-child td {
    border-bottom: none;
}
.t15-info-table td:first-child {
    width: 140px;
    font-weight: 600;
    color: var(--t15-primary);
    background: rgba(139, 92, 246, 0.05);
    border-radius: var(--t15-radius-sm) 0 0 var(--t15-radius-sm);
}
.t15-info-table td:last-child {
    color: var(--t15-text-secondary);
}

/* 16. Message Form */
.t15-form-card {
    background: var(--t15-card-bg);
    border-radius: var(--t15-radius);
    padding: 40px;
    box-shadow: var(--t15-shadow);
    max-width: 700px;
    position: relative;
    overflow: hidden;
}
.t15-form-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--t15-gradient-1);
}
.t15-form-card h3 {
    font-size: 1.3rem;
    margin-bottom: 28px;
    background: var(--t15-gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.t15-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}
.t15-form-group {
    margin-bottom: 24px;
}
.t15-form-group.full {
    grid-column: span 2;
}
.t15-form-label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: var(--t15-text);
}
.t15-input,
.t15-textarea {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid var(--t15-border);
    border-radius: var(--t15-radius-sm);
    background: var(--t15-bg);
    font-size: 1rem;
    color: var(--t15-text);
    font-family: inherit;
    transition: all 0.3s ease;
}
.t15-input:focus,
.t15-textarea:focus {
    outline: none;
    border-color: var(--t15-primary);
    box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.1);
}
.t15-textarea {
    min-height: 150px;
    resize: vertical;
}

/* 17. Button */
.t15-btn {
    display: inline-block;
    padding: 16px 40px;
    background: var(--t15-gradient-1);
    color: var(--t15-text-inverse);
    font-weight: 700;
    font-size: 1rem;
    border: none;
    border-radius: var(--t15-radius-full);
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.4);
}
.t15-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.5);
    color: var(--t15-text-inverse);
}

/* 18. Links Section */
.t15-links {
    background: var(--t15-card-bg);
    border-radius: var(--t15-radius);
    padding: 24px 32px;
    box-shadow: var(--t15-shadow);
    font-size: 0.9rem;
}
.t15-links span {
    font-weight: 700;
    background: var(--t15-gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-right: 16px;
}
.t15-links a {
    color: var(--t15-text-secondary);
    margin-right: 20px;
}
.t15-links a:hover {
    color: var(--t15-primary);
}

/* 19. Breadcrumb */
.t15-breadcrumb {
    background: var(--t15-card-bg);
    border-radius: var(--t15-radius-full);
    padding: 14px 28px;
    margin-bottom: 32px;
    box-shadow: var(--t15-shadow);
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
}
.t15-breadcrumb a {
    color: var(--t15-text-secondary);
}
.t15-breadcrumb a:hover {
    color: var(--t15-primary);
}
.t15-breadcrumb .t15-sep {
    margin: 0 12px;
    color: var(--t15-text-light);
}
.t15-breadcrumb strong {
    background: var(--t15-gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
}

/* 20. Detail Card */
.t15-detail-card {
    background: var(--t15-card-bg);
    border-radius: var(--t15-radius);
    padding: 40px;
    box-shadow: var(--t15-shadow);
    position: relative;
    overflow: hidden;
}
.t15-detail-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--t15-gradient-1);
}
.t15-detail-card h1 {
    font-size: 2rem;
    margin-bottom: 24px;
    background: var(--t15-gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.t15-detail-img {
    margin-bottom: 32px;
    border-radius: var(--t15-radius-sm);
    overflow: hidden;
    box-shadow: var(--t15-shadow);
}
.t15-detail-img img {
    width: 100%;
    display: block;
}
.t15-detail-content {
    color: var(--t15-text-secondary);
    line-height: 2;
}
.t15-detail-content img {
    max-width: 100%;
    border-radius: var(--t15-radius-sm);
    margin: 20px 0;
}
.t15-page-info {
    margin-top: 32px;
    padding: 18px 24px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(236, 72, 153, 0.1) 100%);
    border-radius: var(--t15-radius-sm);
    color: var(--t15-text-light);
    font-size: 0.85rem;
    border-left: 4px solid var(--t15-primary);
}

/* 21. Pagination */
.t15-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 48px;
}
.t15-pagination a,
.t15-pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 48px;
    height: 48px;
    padding: 0 18px;
    background: var(--t15-card-bg);
    border-radius: var(--t15-radius-full);
    box-shadow: var(--t15-shadow);
    color: var(--t15-text-secondary);
    font-weight: 600;
    transition: all 0.3s ease;
}
.t15-pagination a:hover {
    background: var(--t15-gradient-1);
    color: var(--t15-text-inverse);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}
.t15-pagination .active {
    background: var(--t15-gradient-1);
    color: var(--t15-text-inverse);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}
.t15-pagination .disabled {
    color: var(--t15-text-light);
    opacity: 0.5;
    cursor: not-allowed;
}

/* 22. Footer */
.t15-footer {
    background: var(--t15-gradient-1);
    padding: 48px 0;
    margin-top: auto;
}
.t15-footer-content {
    text-align: center;
}
.t15-footer-info {
    display: flex;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}
.t15-footer-info p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.9rem;
    margin-bottom: 0;
    padding: 10px 24px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--t15-radius-full);
}
.t15-footer-copyright {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.85rem;
}
.t15-footer-copyright a {
    color: rgba(255, 255, 255, 0.9);
    margin: 0 8px;
}
.t15-footer-copyright a:hover {
    color: var(--t15-text-inverse);
}

/* 23. Error Page */
.t15-error {
    text-align: center;
    padding: 80px 20px;
}
.t15-error-card {
    background: var(--t15-card-bg);
    border-radius: var(--t15-radius-lg);
    padding: 60px 40px;
    box-shadow: var(--t15-shadow-lg);
    max-width: 500px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
}
.t15-error-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: var(--t15-gradient-1);
}
.t15-error-code {
    font-size: 7rem;
    font-weight: 800;
    background: var(--t15-gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 16px;
}
.t15-error-card h2 {
    font-size: 1.5rem;
    margin-bottom: 16px;
    color: var(--t15-text);
}
.t15-error-card p {
    color: var(--t15-text-secondary);
    margin-bottom: 32px;
}

/* 24. Sub Domain Styles */
.t15-sub-header {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    padding: 16px 0;
    border-bottom: 1px solid var(--t15-border);
}
.t15-sub-header .t15-header-inner {
    flex-wrap: wrap;
    gap: 16px;
}
.t15-sub-header .t15-logo {
    font-size: 1.4rem;
}
.t15-sub-nav {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}
.t15-sub-nav a {
    padding: 10px 20px;
    background: var(--t15-card-bg);
    border-radius: var(--t15-radius-full);
    box-shadow: var(--t15-shadow);
    color: var(--t15-text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.3s ease;
}
.t15-sub-nav a:hover {
    background: var(--t15-gradient-1);
    color: var(--t15-text-inverse);
    transform: translateY(-2px);
}

/* 25. Responsive */
@media (max-width: 1024px) {
    .t15-product-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .t15-hero-grid.row-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .t15-container {
        padding: 0 16px;
    }
    .t15-menu-btn {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }
    .t15-nav {
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background: linear-gradient(135deg, rgba(102, 126, 234, 0.98) 0%, rgba(118, 75, 162, 0.98) 100%);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 20px;
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        z-index: 1000;
    }
    .t15-menu-toggle:checked ~ .t15-nav {
        opacity: 1;
        visibility: visible;
    }
    .t15-menu-toggle:checked ~ .t15-menu-btn span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    .t15-menu-toggle:checked ~ .t15-menu-btn span:nth-child(2) {
        opacity: 0;
    }
    .t15-menu-toggle:checked ~ .t15-menu-btn span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    .t15-nav a {
        font-size: 1.2rem;
        padding: 14px 36px;
        background: rgba(255, 255, 255, 0.2);
        color: var(--t15-text-inverse);
    }
    .t15-nav a:hover,
    .t15-nav a.active {
        background: rgba(255, 255, 255, 0.3);
    }
    .t15-section {
        padding: 40px 0;
    }
    .t15-hero-single {
        height: 320px;
    }
    .t15-hero-single a {
        font-size: 1.3rem;
        padding: 12px 28px;
    }
    .t15-hero-grid {
        grid-template-columns: 1fr !important;
    }
    .t15-hero-item img {
        height: 180px;
    }
    .t15-contact-intro,
    .t15-info-grid {
        grid-template-columns: 1fr;
    }
    .t15-product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    .t15-product-img img {
        height: 150px;
    }
    .t15-detail-card {
        padding: 28px 24px;
    }
    .t15-detail-card h1 {
        font-size: 1.6rem;
    }
    .t15-form-row {
        grid-template-columns: 1fr;
    }
    .t15-form-group.full {
        grid-column: span 1;
    }
    .t15-footer-info {
        flex-direction: column;
        gap: 12px;
    }
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
}

@media (max-width: 480px) {
    .t15-logo {
        font-size: 1.3rem;
    }
    .t15-product-grid {
        grid-template-columns: 1fr;
    }
    .t15-section-title h2 {
        font-size: 1.2rem;
        padding: 12px 28px;
    }
    .t15-pagination {
        gap: 8px;
        flex-wrap: wrap;
    }
    .t15-pagination a,
    .t15-pagination span {
        min-width: 42px;
        height: 42px;
        padding: 0 14px;
        font-size: 0.9rem;
    }
}