.ofd-hero {
    background: 
        linear-gradient(135deg, 
            rgba(4, 47, 46, 0.92) 0%, 
            rgba(17, 94, 89, 0.88) 25%, 
            rgba(13, 148, 136, 0.75) 50%, 
            rgba(17, 94, 89, 0.88) 75%, 
            rgba(4, 47, 46, 0.92) 100%),
        url('/static/images/ofd/kv_bg.png') center/cover no-repeat;
    position: relative;
    overflow: hidden;
}

.ofd-hero::before {
    background: 
        radial-gradient(ellipse at 15% 30%, rgba(13, 148, 136, 0.25) 0%, transparent 55%),
        radial-gradient(ellipse at 85% 70%, rgba(15, 118, 110, 0.18) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(94, 234, 212, 0.12) 0%, transparent 60%);
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.ofd-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(13, 148, 136, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 80% 20%, rgba(15, 118, 110, 0.1) 0%, transparent 35%);
    pointer-events: none;
    animation: ofd-hero-pulse 8s ease-in-out infinite alternate;
}

@keyframes ofd-hero-pulse {
    0% { opacity: 0.6; }
    100% { opacity: 1; }
}

.ofd-hero .hero-title {
    background: linear-gradient(135deg, #ffffff 0%, #f0fdfa 20%, #99f6e4 40%, #5eead4 60%, #2dd4bf 80%, #14b8a6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
    font-size: clamp(2.25rem, 5.5vw, 3.75rem);
    filter: 
        drop-shadow(0 0 20px rgba(255, 255, 255, 0.5)) 
        drop-shadow(0 0 40px rgba(94, 234, 212, 0.4)) 
        drop-shadow(0 4px 16px rgba(0, 0, 0, 0.6));
    letter-spacing: -0.02em;
    line-height: 1.1;
    font-weight: 800;
}

.ofd-hero .hero-desc {
    color: #99f6e4;
    font-size: clamp(1rem, 2vw, 1.25rem);
    line-height: 1.8;
    text-shadow: 
        0 0 20px rgba(94, 234, 212, 0.3),
        0 2px 8px rgba(0, 0, 0, 0.5);
    opacity: 1;
    font-weight: 500;
}

.ofd-hero .hero-badge {
    background: linear-gradient(135deg, rgba(13, 148, 136, 0.2), rgba(15, 118, 110, 0.15));
    border: 1px solid rgba(13, 148, 136, 0.25);
    color: #5eead4;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    backdrop-filter: blur(8px);
    box-shadow: 
        0 0 20px rgba(13, 148, 136, 0.2), 
        0 4px 16px rgba(13, 148, 136, 0.15);
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
}

.ofd-hero .hero-badge i {
    font-size: 1rem;
}

.ofd-feature-icon {
    background: linear-gradient(135deg, rgba(13, 148, 136, 0.2), rgba(15, 118, 110, 0.15));
    box-shadow: 0 8px 32px rgba(13, 148, 136, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(13, 148, 136, 0.2);
}

.ofd-cta {
    background: linear-gradient(135deg, #115e59, #0d9488);
    box-shadow: 0 8px 32px rgba(13, 148, 136, 0.25);
}

.ofd-doc-icon {
    width: 80px;
    height: 100px;
    background: linear-gradient(135deg, rgba(13, 148, 136, 0.2), rgba(15, 118, 110, 0.15));
    border: 1px solid rgba(13, 148, 136, 0.3);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.ofd-doc-icon::after {
    content: 'OFD';
    position: absolute;
    bottom: 8px;
    font-size: 0.625rem;
    font-weight: 700;
    color: #5eead4;
    letter-spacing: 0.05em;
}

.ofd-convert-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0d9488;
    font-size: 1.5rem;
}

[data-theme="ofd"] .btn-hero-primary {
    background: linear-gradient(135deg, #0d9488, #0f766e);
    box-shadow: 0 8px 32px rgba(13, 148, 136, 0.3);
    color: #ffffff;
    font-weight: 600;
    transition: all 0.3s ease;
}

[data-theme="ofd"] .btn-hero-primary:hover {
    background: linear-gradient(135deg, #14b8a6, #0d9488);
    box-shadow: 0 12px 40px rgba(13, 148, 136, 0.4);
    transform: translateY(-2px);
}

[data-theme="ofd"] .btn-hero-secondary {
    background: rgba(13, 148, 136, 0.1);
    border: 1px solid rgba(13, 148, 136, 0.3);
    color: #5eead4;
    backdrop-filter: blur(8px);
    transition: all 0.3s ease;
}

[data-theme="ofd"] .btn-hero-secondary:hover {
    background: rgba(13, 148, 136, 0.2);
    border-color: rgba(13, 148, 136, 0.5);
}

[data-theme="ofd"] .hero-particle {
    background: radial-gradient(circle, rgba(13, 148, 136, 0.6) 0%, transparent 70%);
}

[data-theme="ofd"] .hero-grid-bg {
    background-image: 
        linear-gradient(rgba(13, 148, 136, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(13, 148, 136, 0.03) 1px, transparent 1px);
}

[data-theme="ofd"] .gallery-grid-hero {
    background: linear-gradient(145deg, rgba(17, 94, 89, 0.6), rgba(4, 47, 46, 0.7));
    border: 1px solid rgba(13, 148, 136, 0.2);
    backdrop-filter: blur(12px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* ========================================
   帮助中心和关于我们页面通用样式
   ======================================== */

:root {
    --help-primary: #0d9488;
    --help-primary-light: #5eead4;
    --help-bg: #f8fafc;
    --help-card-bg: #ffffff;
    --help-text: #1e293b;
    --help-text-secondary: #64748b;
    --help-border: rgba(0, 0, 0, 0.06);
    --help-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --help-radius: 16px;
    --help-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="ofd"] {
    --help-primary: #0d9488;
    --help-primary-light: #5eead4;
    --help-gradient: linear-gradient(135deg, #0d9488, #0f766e);
}

/* ========================================
   帮助中心页面样式
   ======================================== */

.help-page-wrapper {
    min-height: 100vh;
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.help-page-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 400px;
    background: radial-gradient(ellipse at 50% 0%, rgba(13, 148, 136, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.help-hero {
    text-align: center;
    padding: 60px 20px 40px;
    position: relative;
    z-index: 1;
}

.help-hero-title {
    font-size: 3rem;
    font-weight: 800;
    background: var(--help-gradient, linear-gradient(135deg, #0d9488, #0f766e));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
    animation: fadeInDown 0.8s ease-out;
}

.help-hero-subtitle {
    font-size: 1.125rem;
    color: var(--help-text-secondary);
    margin-bottom: 40px;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.help-search-container {
    max-width: 600px;
    margin: 0 auto 60px;
    position: relative;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.help-search-box {
    position: relative;
    background: white;
    border-radius: 50px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08), 0 0 0 1px rgba(0, 0, 0, 0.04);
    overflow: hidden;
    transition: var(--help-transition);
}

.help-search-box:focus-within {
    box-shadow: 0 8px 30px rgba(13, 148, 136, 0.15), 0 0 0 2px var(--help-primary);
    transform: translateY(-2px);
}

.help-search-input {
    width: 100%;
    padding: 20px 60px 20px 30px;
    border: none;
    outline: none;
    font-size: 1rem;
    background: transparent;
    color: var(--help-text);
}

.help-search-input::placeholder {
    color: #94a3b8;
}

.help-search-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--help-gradient, linear-gradient(135deg, #0d9488, #0f766e));
    border: none;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--help-transition);
}

.help-search-btn:hover {
    transform: translateY(-50%) scale(1.05);
    box-shadow: 0 4px 15px rgba(13, 148, 136, 0.3);
}

.help-main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px 80px;
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 30px;
    position: relative;
    z-index: 1;
}

.help-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
    animation: fadeInLeft 0.8s ease-out 0.6s both;
}

.help-category-card {
    background: white;
    border-radius: var(--help-radius);
    box-shadow: var(--help-shadow);
    overflow: hidden;
    border: 1px solid var(--help-border);
}

.help-category-header {
    padding: 24px 24px 16px;
    border-bottom: 1px solid var(--help-border);
}

.help-category-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--help-text);
    display: flex;
    align-items: center;
    gap: 10px;
}

.help-category-title i {
    color: var(--help-primary);
    font-size: 1.25rem;
}

.help-category-list {
    padding: 12px 0;
}

.help-category-item {
    display: block;
    padding: 14px 24px;
    color: var(--help-text-secondary);
    text-decoration: none;
    transition: var(--help-transition);
    position: relative;
    font-weight: 500;
}

.help-category-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--help-primary);
    transform: scaleY(0);
    transition: var(--help-transition);
}

.help-category-item:hover {
    color: var(--help-primary);
    background: rgba(13, 148, 136, 0.04);
    padding-left: 28px;
}

.help-category-item:hover::before {
    transform: scaleY(1);
}

.help-category-item.active {
    color: var(--help-primary);
    background: rgba(13, 148, 136, 0.08);
    font-weight: 600;
}

.help-category-item.active::before {
    transform: scaleY(1);
}

.help-content {
    animation: fadeInRight 0.8s ease-out 0.6s both;
}

.help-article-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.help-article-card {
    background: white;
    border-radius: var(--help-radius);
    padding: 28px;
    box-shadow: var(--help-shadow);
    border: 1px solid var(--help-border);
    transition: var(--help-transition);
    cursor: pointer;
    text-decoration: none;
    display: block;
}

.help-article-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    border-color: var(--help-primary);
}

.help-article-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--help-text);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.help-article-title::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--help-primary);
    border-radius: 50%;
    flex-shrink: 0;
}

.help-article-excerpt {
    color: var(--help-text-secondary);
    line-height: 1.7;
    font-size: 0.9375rem;
}

.help-article-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--help-border);
    font-size: 0.875rem;
    color: #94a3b8;
}

.help-article-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.help-empty-state {
    text-align: center;
    padding: 80px 20px;
    background: white;
    border-radius: var(--help-radius);
    box-shadow: var(--help-shadow);
}

.help-empty-icon {
    font-size: 4rem;
    color: #cbd5e1;
    margin-bottom: 20px;
}

.help-empty-text {
    font-size: 1.125rem;
    color: var(--help-text-secondary);
}

/* ========================================
   关于我们页面样式
   ======================================== */

.about-page-wrapper {
    min-height: 100vh;
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.about-page-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 500px;
    background: radial-gradient(ellipse at 50% 0%, rgba(13, 148, 136, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.about-hero {
    text-align: center;
    padding: 80px 20px 60px;
    position: relative;
    z-index: 1;
}

.about-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(13, 148, 136, 0.08);
    border: 1px solid rgba(13, 148, 136, 0.15);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.875rem;
    color: var(--help-primary);
    margin-bottom: 24px;
    animation: fadeInDown 0.8s ease-out;
}

.about-hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    background: var(--help-gradient, linear-gradient(135deg, #0d9488, #0f766e));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.about-hero-subtitle {
    font-size: 1.25rem;
    color: var(--help-text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.about-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px 80px;
    position: relative;
    z-index: 1;
}

.about-section {
    margin-bottom: 60px;
    animation: fadeInUp 0.8s ease-out both;
}

.about-section:nth-child(1) { animation-delay: 0.6s; }
.about-section:nth-child(2) { animation-delay: 0.8s; }
.about-section:nth-child(3) { animation-delay: 1s; }

.about-card {
    background: white;
    border-radius: var(--help-radius);
    padding: 48px;
    box-shadow: var(--help-shadow);
    border: 1px solid var(--help-border);
    transition: var(--help-transition);
}

.about-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.about-card-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 32px;
}

.about-card-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    background: var(--help-gradient, linear-gradient(135deg, #0d9488, #0f766e));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.about-card-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--help-text);
}

.about-card-subtitle {
    font-size: 0.875rem;
    color: var(--help-text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.about-text {
    color: var(--help-text-secondary);
    line-height: 1.8;
    font-size: 1.0625rem;
    margin-bottom: 20px;
}

.about-text:last-child {
    margin-bottom: 0;
}

.about-images {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    margin-top: 32px;
}

.about-image {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: var(--help-transition);
}

.about-image:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-top: 40px;
}

.about-feature-card {
    background: white;
    border-radius: var(--help-radius);
    padding: 32px;
    box-shadow: var(--help-shadow);
    border: 1px solid var(--help-border);
    text-align: center;
    transition: var(--help-transition);
}

.about-feature-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.12);
    border-color: var(--help-primary);
}

.about-feature-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(13, 148, 136, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.75rem;
    color: var(--help-primary);
}

.about-feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--help-text);
    margin-bottom: 12px;
}

.about-feature-desc {
    color: var(--help-text-secondary);
    line-height: 1.6;
    font-size: 0.9375rem;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@media (max-width: 1024px) {
    .help-main-content {
        grid-template-columns: 1fr;
    }

    .help-sidebar {
        position: static;
    }

    .help-hero-title {
        font-size: 2.5rem;
    }

    .about-hero-title {
        font-size: 2.75rem;
    }
}

@media (max-width: 768px) {
    .help-page-wrapper,
    .about-page-wrapper {
        padding-top: 70px;
    }

    .help-hero {
        padding: 40px 20px 30px;
    }

    .help-hero-title {
        font-size: 2rem;
    }

    .help-hero-subtitle {
        font-size: 1rem;
    }

    .help-search-container {
        margin-bottom: 40px;
    }

    .help-search-input {
        padding: 16px 60px 16px 20px;
        font-size: 0.9375rem;
    }

    .help-main-content {
        padding: 0 16px 60px;
        gap: 20px;
    }

    .help-category-header {
        padding: 20px 20px 12px;
    }

    .help-category-item {
        padding: 12px 20px;
    }

    .help-article-card {
        padding: 20px;
    }

    .help-article-title {
        font-size: 1.125rem;
    }

    .about-hero {
        padding: 60px 20px 40px;
    }

    .about-hero-title {
        font-size: 2.25rem;
    }

    .about-hero-subtitle {
        font-size: 1.0625rem;
    }

    .about-content {
        padding: 0 16px 60px;
    }

    .about-card {
        padding: 28px 24px;
    }

    .about-card-title {
        font-size: 1.5rem;
    }

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

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

@media (max-width: 480px) {
    .help-hero-title {
        font-size: 1.75rem;
    }

    .help-search-input {
        padding: 14px 55px 14px 18px;
    }

    .help-search-btn {
        width: 40px;
        height: 40px;
    }

    .help-article-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .about-hero-title {
        font-size: 2rem;
    }

    .about-card {
        padding: 24px 20px;
    }

    .about-card-header {
        flex-direction: column;
        text-align: center;
    }
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 40px;
}

.page-link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    border-radius: 8px;
    border: 1px solid var(--help-border);
    background: white;
    color: var(--help-text-secondary);
    font-weight: 500;
    transition: var(--help-transition);
}

.page-link:hover {
    background: rgba(13, 148, 136, 0.08);
    border-color: var(--help-primary);
    color: var(--help-primary);
}

.page-item.active .page-link {
    background: var(--help-gradient, linear-gradient(135deg, #0d9488, #0f766e));
    border-color: transparent;
    color: white;
}

.page-item.disabled .page-link {
    opacity: 0.5;
    cursor: not-allowed;
}

.about-product-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
    margin-top: 32px;
}

.about-product-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: rgba(13, 148, 136, 0.04);
    border-radius: 12px;
    border: 1px solid rgba(13, 148, 136, 0.08);
    transition: var(--help-transition);
}

.about-product-feature:hover {
    background: rgba(13, 148, 136, 0.08);
    border-color: var(--help-primary);
    transform: translateX(4px);
}

.about-product-feature i {
    color: var(--help-primary);
    font-size: 1.125rem;
    flex-shrink: 0;
}

.about-product-feature span {
    color: var(--help-text);
    font-size: 0.9375rem;
    font-weight: 500;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 20px;
}

.about-stat-item {
    text-align: center;
    padding: 32px 20px;
    background: linear-gradient(135deg, rgba(13, 148, 136, 0.04), rgba(13, 148, 136, 0.02));
    border-radius: 16px;
    border: 1px solid rgba(13, 148, 136, 0.08);
    transition: var(--help-transition);
}

.about-stat-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(13, 148, 136, 0.12);
    border-color: var(--help-primary);
}

.about-stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--help-gradient, linear-gradient(135deg, #0d9488, #0f766e));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
    line-height: 1.2;
}

.about-stat-label {
    font-size: 0.9375rem;
    color: var(--help-text-secondary);
    font-weight: 500;
}

.about-timeline {
    position: relative;
    padding-left: 40px;
    margin-top: 20px;
}

.about-timeline::before {
    content: '';
    position: absolute;
    left: 12px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--help-primary), rgba(13, 148, 136, 0.2));
}

.about-timeline-item {
    position: relative;
    padding-bottom: 32px;
    transition: var(--help-transition);
}

.about-timeline-item:last-child {
    padding-bottom: 0;
}

.about-timeline-item:hover .about-timeline-dot {
    transform: scale(1.3);
    box-shadow: 0 0 0 8px rgba(13, 148, 136, 0.15);
}

.about-timeline-dot {
    position: absolute;
    left: -34px;
    top: 4px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--help-gradient, linear-gradient(135deg, #0d9488, #0f766e));
    border: 3px solid white;
    box-shadow: 0 2px 8px rgba(13, 148, 136, 0.3);
    transition: var(--help-transition);
}

.about-timeline-content {
    background: rgba(13, 148, 136, 0.02);
    border-radius: 12px;
    padding: 20px 24px;
    border: 1px solid rgba(13, 148, 136, 0.08);
    transition: var(--help-transition);
}

.about-timeline-item:hover .about-timeline-content {
    background: rgba(13, 148, 136, 0.04);
    border-color: rgba(13, 148, 136, 0.15);
}

.about-timeline-year {
    display: inline-block;
    padding: 4px 12px;
    background: var(--help-gradient, linear-gradient(135deg, #0d9488, #0f766e));
    color: white;
    border-radius: 20px;
    font-size: 0.8125rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.about-timeline-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--help-text);
    margin-bottom: 8px;
}

.about-timeline-desc {
    font-size: 0.9375rem;
    color: var(--help-text-secondary);
    line-height: 1.6;
}

.about-contact {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.about-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 24px;
    background: rgba(13, 148, 136, 0.02);
    border-radius: 12px;
    border: 1px solid rgba(13, 148, 136, 0.08);
    transition: var(--help-transition);
}

.about-contact-item:hover {
    background: rgba(13, 148, 136, 0.04);
    border-color: var(--help-primary);
    transform: translateY(-2px);
}

.about-contact-item > i {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--help-gradient, linear-gradient(135deg, #0d9488, #0f766e));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.about-contact-info {
    flex: 1;
}

.about-contact-label {
    font-size: 0.8125rem;
    color: var(--help-text-secondary);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.about-contact-value {
    font-size: 0.9375rem;
    color: var(--help-text);
    font-weight: 500;
    line-height: 1.5;
}

@media (max-width: 768px) {
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-stat-number {
        font-size: 2rem;
    }

    .about-timeline {
        padding-left: 32px;
    }

    .about-timeline-dot {
        left: -26px;
        width: 14px;
        height: 14px;
    }

    .about-timeline-content {
        padding: 16px 20px;
    }

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

@media (max-width: 480px) {
    .about-stats {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }

    .about-stat-item {
        padding: 24px 16px;
    }

    .about-stat-number {
        font-size: 1.75rem;
    }

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