/* GifProcessor 产品主题样式 - 橙黄色系科技感 */

[data-theme="gifprocessor"] {
    --primary: #f59e0b;
    --primary-dark: #d97706;
    --primary-light: #fbbf24;
    --secondary: #ef4444;
    --accent: #ec4899;
    --gradient: linear-gradient(135deg, #f59e0b, #ef4444);
    --gradient-hover: linear-gradient(135deg, #d97706, #dc2626);
    --tech-glow: rgba(245, 158, 11, 0.3);
}

[data-theme="gifprocessor"] .hero-section {
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 50%, #fde68a 100%);
    position: relative;
    overflow: hidden;
}

[data-theme="gifprocessor"] .hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(245, 158, 11, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(239, 68, 68, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

[data-theme="gifprocessor"] .hero-title {
    background: linear-gradient(135deg, #d97706 0%, #ef4444 50%, #f59e0b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

[data-theme="gifprocessor"] .hero-badge {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(239, 68, 68, 0.1));
    border: 1px solid rgba(245, 158, 11, 0.2);
    color: #d97706;
}

[data-theme="gifprocessor"] .btn-hero-primary {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    color: #ffffff;
    box-shadow: 0 4px 20px rgba(245, 158, 11, 0.3);
    position: relative;
    overflow: hidden;
}

[data-theme="gifprocessor"] .btn-hero-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

[data-theme="gifprocessor"] .btn-hero-primary:hover::before {
    left: 100%;
}

[data-theme="gifprocessor"] .btn-hero-primary:hover {
    background: linear-gradient(135deg, #d97706, #dc2626);
    box-shadow: 0 6px 30px rgba(245, 158, 11, 0.4);
    transform: translateY(-2px);
}

[data-theme="gifprocessor"] .btn-hero-secondary {
    background: rgba(245, 158, 11, 0.05);
    border: 2px solid rgba(245, 158, 11, 0.3);
    color: #d97706;
}

[data-theme="gifprocessor"] .btn-hero-secondary:hover {
    background: rgba(245, 158, 11, 0.1);
    border-color: #f59e0b;
}

[data-theme="gifprocessor"] .feature-card {
    background: #ffffff;
    border: 1px solid rgba(245, 158, 11, 0.1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

[data-theme="gifprocessor"] .feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #f59e0b, #ef4444);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

[data-theme="gifprocessor"] .feature-card:hover {
    border-color: #f59e0b;
    box-shadow: 0 8px 30px rgba(245, 158, 11, 0.15);
    transform: translateY(-5px);
}

[data-theme="gifprocessor"] .feature-card:hover::before {
    transform: scaleX(1);
}

[data-theme="gifprocessor"] .feature-icon {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
}

[data-theme="gifprocessor"] .feature-title {
    color: #1e293b;
}

[data-theme="gifprocessor"] .feature-desc {
    color: #64748b;
}

[data-theme="gifprocessor"] .feature-tags .tag {
    background: rgba(245, 158, 11, 0.1);
    color: #d97706;
    border: 1px solid rgba(245, 158, 11, 0.2);
}

[data-theme="gifprocessor"] .advantage-card {
    background: linear-gradient(135deg, #ffffff, #fffbeb);
    border: 1px solid rgba(245, 158, 11, 0.1);
    transition: all 0.3s ease;
}

[data-theme="gifprocessor"] .advantage-card:hover {
    border-color: #f59e0b;
    box-shadow: 0 8px 30px rgba(245, 158, 11, 0.15);
    transform: translateY(-5px);
}

[data-theme="gifprocessor"] .advantage-icon {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(239, 68, 68, 0.1));
    color: #f59e0b;
}

[data-theme="gifprocessor"] .step-card {
    background: #ffffff;
    border: 1px solid rgba(245, 158, 11, 0.1);
    transition: all 0.3s ease;
}

[data-theme="gifprocessor"] .step-card:hover {
    border-color: #f59e0b;
    box-shadow: 0 8px 30px rgba(245, 158, 11, 0.15);
}

[data-theme="gifprocessor"] .step-number {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

[data-theme="gifprocessor"] .step-icon {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(239, 68, 68, 0.1));
    color: #f59e0b;
}

[data-theme="gifprocessor"] .support-card {
    background: #ffffff;
    border: 2px solid rgba(245, 158, 11, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

[data-theme="gifprocessor"] .support-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(245, 158, 11, 0.05), transparent);
    transition: left 0.5s ease;
}

[data-theme="gifprocessor"] .support-card:hover::before {
    left: 100%;
}

[data-theme="gifprocessor"] .support-card:hover {
    border-color: #f59e0b;
    box-shadow: 0 12px 40px rgba(245, 158, 11, 0.25);
    transform: translateY(-8px) scale(1.02);
}

[data-theme="gifprocessor"] .support-icon {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    transition: all 0.3s ease;
}

[data-theme="gifprocessor"] .support-card:hover .support-icon {
    transform: scale(1.1);
    filter: drop-shadow(0 4px 8px rgba(245, 158, 11, 0.3));
}

[data-theme="gifprocessor"] .support-name {
    color: #64748b;
    font-size: 0.875rem;
    margin-top: 8px;
    transition: all 0.3s ease;
}

[data-theme="gifprocessor"] .support-card:hover .support-name {
    color: #d97706;
}

[data-theme="gifprocessor"] .download-card {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 10px 40px rgba(245, 158, 11, 0.3);
    position: relative;
    overflow: hidden;
}

[data-theme="gifprocessor"] .download-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

[data-theme="gifprocessor"] .btn-download-primary {
    background: #ffffff;
    color: #f59e0b;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

[data-theme="gifprocessor"] .btn-download-primary:hover {
    background: #fffbeb;
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(0, 0, 0, 0.3);
}

[data-theme="gifprocessor"] .tech-header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(245, 158, 11, 0.1);
}

[data-theme="gifprocessor"] .logo-title {
    color: #1e293b;
}

[data-theme="gifprocessor"] .nav-link {
    color: #475569;
}

[data-theme="gifprocessor"] .nav-link:hover,
[data-theme="gifprocessor"] .nav-link.active {
    color: #f59e0b;
}

[data-theme="gifprocessor"] .btn-tech-login {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    color: #ffffff;
}

[data-theme="gifprocessor"] .btn-tech-login:hover {
    background: linear-gradient(135deg, #d97706, #dc2626);
}

[data-theme="gifprocessor"] .section-badge {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(239, 68, 68, 0.1));
    border: 1px solid rgba(245, 158, 11, 0.2);
    color: #d97706;
}

[data-theme="gifprocessor"] .section-title {
    color: #1e293b;
}

[data-theme="gifprocessor"] .section-subtitle {
    color: #64748b;
}

[data-theme="gifprocessor"] .tech-footer {
    background: linear-gradient(135deg, #78350f, #92400e);
}

[data-theme="gifprocessor"] .footer-title {
    color: #fef3c7;
}

[data-theme="gifprocessor"] .footer-item a {
    color: #fde68a;
}

[data-theme="gifprocessor"] .footer-item a:hover {
    color: #ffffff;
}

[data-theme="gifprocessor"] .footer-bottom {
    background: rgba(0, 0, 0, 0.2);
    color: #fde68a;
}

[data-theme="gifprocessor"] .downTop {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
}

[data-theme="gifprocessor"] .downTopDowmload {
    background: #ffffff;
    color: #f59e0b;
}

.gif-visualizer {
    position: relative;
    padding: 40px;
}

.gif-container {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
    min-height: 300px;
}

.gif-frame {
    width: 120px;
    height: 120px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 16px;
    box-shadow: 0 8px 30px rgba(245, 158, 11, 0.2);
    border: 2px solid rgba(245, 158, 11, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.5s ease;
}

.gif-frame.animate {
    opacity: 1;
    transform: scale(1);
}

.gif-frame:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 40px rgba(245, 158, 11, 0.3);
}

.frame-content {
    text-align: center;
}

.frame-content i {
    font-size: 2.5rem;
    color: #f59e0b;
    display: block;
    margin-bottom: 10px;
}

.frame-content span {
    font-size: 0.9rem;
    color: #64748b;
    font-weight: 600;
}

.gif-arrow {
    font-size: 2rem;
    color: #f59e0b;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% {
        transform: translateX(0);
    }
    50% {
        transform: translateX(10px);
    }
}

.gif-main {
    position: relative;
    width: 180px;
    height: 180px;
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: 0 12px 40px rgba(245, 158, 11, 0.4);
}

.gif-icon-wrapper {
    font-size: 4rem;
    color: #ffffff;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

.gif-label {
    color: #ffffff;
    font-size: 1.1rem;
    font-weight: 600;
    margin-top: 10px;
}

.gif-animation-ring {
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border: 3px solid rgba(245, 158, 11, 0.3);
    border-radius: 50%;
    animation: ring-pulse 2s ease-in-out infinite;
}

@keyframes ring-pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.5;
    }
}

.gif-stats {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 40px;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 20px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.1);
}

.stat-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(239, 68, 68, 0.1));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #f59e0b;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: #d97706;
}

.stat-label {
    font-size: 0.85rem;
    color: #64748b;
}

.hero-tech-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(245, 158, 11, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(245, 158, 11, 0.05) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
}

.animate-fade-in-up {
    animation: fadeInUp 0.8s ease forwards;
}

.animate-scale-in {
    animation: scaleIn 1s ease forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@media (max-width: 768px) {
    .gif-container {
        flex-direction: column;
        gap: 20px;
    }
    
    .gif-arrow {
        transform: rotate(90deg);
    }
    
    .gif-stats {
        flex-direction: column;
        gap: 15px;
    }
    
    .stat-item {
        justify-content: center;
    }
    
    [data-theme="gifprocessor"] .hero-section {
        padding: 60px 0 40px;
    }
    
    [data-theme="gifprocessor"] .hero-title {
        font-size: 2rem;
    }
    
    [data-theme="gifprocessor"] .hero-content {
        text-align: center;
    }
    
    [data-theme="gifprocessor"] .hero-actions {
        justify-content: center;
    }
    
    [data-theme="gifprocessor"] .btn-hero-primary,
    [data-theme="gifprocessor"] .btn-hero-secondary {
        padding: 12px 24px;
        font-size: 0.9rem;
    }
    
    .gif-visualizer {
        padding: 20px;
        margin-top: 30px;
    }
    
    .gif-frame {
        width: 100px;
        height: 100px;
    }
    
    .frame-content i {
        font-size: 2rem;
    }
    
    .frame-content span {
        font-size: 0.8rem;
    }
    
    .gif-main {
        width: 150px;
        height: 150px;
    }
    
    .gif-icon-wrapper {
        font-size: 3rem;
    }
    
    .gif-label {
        font-size: 1rem;
    }
    
    .stat-icon {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    
    .stat-value {
        font-size: 1.2rem;
    }
    
    .stat-label {
        font-size: 0.75rem;
    }
}

[data-theme="gifprocessor"] .hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

[data-theme="gifprocessor"] .hero-particle {
    position: absolute;
    width: 7px;
    height: 7px;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.4), rgba(239, 68, 68, 0.4));
    border-radius: 50%;
    animation: float-particle 14s infinite ease-in-out;
}

[data-theme="gifprocessor"] .hero-particle:nth-child(1) { left: 8%; top: 18%; animation-delay: 0s; }
[data-theme="gifprocessor"] .hero-particle:nth-child(2) { left: 18%; top: 78%; animation-delay: 1.75s; }
[data-theme="gifprocessor"] .hero-particle:nth-child(3) { left: 58%; top: 38%; animation-delay: 3.5s; }
[data-theme="gifprocessor"] .hero-particle:nth-child(4) { left: 78%; top: 68%; animation-delay: 5.25s; }
[data-theme="gifprocessor"] .hero-particle:nth-child(5) { left: 28%; top: 28%; animation-delay: 7s; }
[data-theme="gifprocessor"] .hero-particle:nth-child(6) { left: 68%; top: 78%; animation-delay: 8.75s; }
[data-theme="gifprocessor"] .hero-particle:nth-child(7) { left: 48%; top: 48%; animation-delay: 10.5s; }
[data-theme="gifprocessor"] .hero-particle:nth-child(8) { left: 88%; top: 18%; animation-delay: 12.25s; }

@keyframes float-particle {
    0%, 100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.35;
    }
    25% {
        transform: translate(35px, -35px) scale(1.25);
        opacity: 0.65;
    }
    50% {
        transform: translate(-25px, 25px) scale(0.75);
        opacity: 0.45;
    }
    75% {
        transform: translate(15px, 15px) scale(1.15);
        opacity: 0.55;
    }
}

[data-theme="gifprocessor"] .hero-grid-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(245, 158, 11, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(245, 158, 11, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
}

[data-theme="gifprocessor"] .feature-icon-wrapper {
    position: relative;
    display: inline-block;
    margin-bottom: 20px;
}

[data-theme="gifprocessor"] .feature-icon-bg {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(239, 68, 68, 0.1));
    border-radius: 50%;
    animation: icon-pulse 2s ease-in-out infinite;
}

@keyframes icon-pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.5;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 0.3;
    }
}

[data-theme="gifprocessor"] .step-card:hover .step-icon {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    color: #ffffff;
    transform: scale(1.1);
}

[data-theme="gifprocessor"] .step-line {
    position: absolute;
    right: -50%;
    top: 50%;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, #f59e0b, transparent);
}

@media (max-width: 991px) {
    [data-theme="gifprocessor"] .step-line {
        display: none;
    }
}

[data-theme="gifprocessor"] .download-bg-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

[data-theme="gifprocessor"] .download-bg-animation::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

[data-theme="gifprocessor"] .section-header {
    text-align: center;
    margin-bottom: 50px;
}

[data-theme="gifprocessor"] .section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 15px;
}

[data-theme="gifprocessor"] .section-title {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 15px;
}

[data-theme="gifprocessor"] .section-subtitle {
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

[data-theme="gifprocessor"] .features-section,
[data-theme="gifprocessor"] .advantages-section,
[data-theme="gifprocessor"] .steps-section,
[data-theme="gifprocessor"] .support-section {
    padding: 80px 0;
}

[data-theme="gifprocessor"] .download-section {
    padding: 60px 0;
}

[data-theme="gifprocessor"] .download-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 10px;
}

[data-theme="gifprocessor"] .download-desc {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.9);
}

[data-theme="gifprocessor"] .btn-download-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 35px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.3s ease;
}

@media (max-width: 576px) {
    [data-theme="gifprocessor"] .section-title {
        font-size: 1.6rem;
    }
    
    [data-theme="gifprocessor"] .section-subtitle {
        font-size: 0.95rem;
    }
    
    [data-theme="gifprocessor"] .features-section,
    [data-theme="gifprocessor"] .advantages-section,
    [data-theme="gifprocessor"] .steps-section,
    [data-theme="gifprocessor"] .support-section {
        padding: 50px 0;
    }
    
    [data-theme="gifprocessor"] .download-title {
        font-size: 1.4rem;
    }
    
    [data-theme="gifprocessor"] .download-desc {
        font-size: 0.9rem;
    }
    
    [data-theme="gifprocessor"] .btn-download-primary {
        padding: 12px 25px;
        font-size: 0.9rem;
    }
}

/* 图标大小修复 */
[data-theme="gifprocessor"] .feature-icon i {
    font-size: 1.5rem;
}

[data-theme="gifprocessor"] .step-icon i {
    font-size: 1.75rem;
}

[data-theme="gifprocessor"] .advantage-icon i {
    font-size: 1.75rem;
}

[data-theme="gifprocessor"] .stat-icon i {
    font-size: 1.3rem;
}

/* 高级特性样式 */
[data-theme="gifprocessor"] .advanced-features-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #fffbeb, #fef3c7);
}

[data-theme="gifprocessor"] .advanced-feature-card {
    background: #ffffff;
    border: 1px solid rgba(245, 158, 11, 0.1);
    border-radius: 16px;
    padding: 30px;
    transition: all 0.3s ease;
    height: 100%;
}

[data-theme="gifprocessor"] .advanced-feature-card:hover {
    border-color: #f59e0b;
    box-shadow: 0 12px 40px rgba(245, 158, 11, 0.15);
    transform: translateY(-5px);
}

[data-theme="gifprocessor"] .advanced-feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(239, 68, 68, 0.1));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #f59e0b;
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

[data-theme="gifprocessor"] .advanced-feature-card:hover .advanced-feature-icon {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    color: #ffffff;
    transform: scale(1.1) rotate(5deg);
}

[data-theme="gifprocessor"] .advanced-feature-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 12px;
}

[data-theme="gifprocessor"] .advanced-feature-desc {
    color: #64748b;
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 15px;
}

[data-theme="gifprocessor"] .advanced-feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

[data-theme="gifprocessor"] .advanced-feature-list li {
    color: #475569;
    font-size: 0.9rem;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

[data-theme="gifprocessor"] .advanced-feature-list li i {
    color: #10b981;
    font-size: 1rem;
}

/* 应用场景样式 */
[data-theme="gifprocessor"] .scenarios-section {
    padding: 80px 0;
    background: #ffffff;
}

[data-theme="gifprocessor"] .scenario-card {
    background: linear-gradient(135deg, #ffffff, #fffbeb);
    border: 1px solid rgba(245, 158, 11, 0.1);
    border-radius: 16px;
    padding: 30px;
    transition: all 0.3s ease;
    height: 100%;
}

[data-theme="gifprocessor"] .scenario-card:hover {
    border-color: #f59e0b;
    box-shadow: 0 12px 40px rgba(245, 158, 11, 0.15);
    transform: translateY(-5px);
}

[data-theme="gifprocessor"] .scenario-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #ffffff;
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

[data-theme="gifprocessor"] .scenario-card:hover .scenario-icon {
    transform: scale(1.1) rotate(-5deg);
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.3);
}

[data-theme="gifprocessor"] .scenario-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 12px;
}

[data-theme="gifprocessor"] .scenario-desc {
    color: #64748b;
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 15px;
}

[data-theme="gifprocessor"] .scenario-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

[data-theme="gifprocessor"] .scenario-tag {
    background: rgba(245, 158, 11, 0.1);
    color: #d97706;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    border: 1px solid rgba(245, 158, 11, 0.2);
    transition: all 0.3s ease;
}

[data-theme="gifprocessor"] .scenario-card:hover .scenario-tag {
    background: rgba(245, 158, 11, 0.2);
    border-color: #f59e0b;
}

/* 响应式适配 */
@media (max-width: 768px) {
    [data-theme="gifprocessor"] .advanced-features-section,
    [data-theme="gifprocessor"] .scenarios-section {
        padding: 50px 0;
    }
    
    [data-theme="gifprocessor"] .advanced-feature-card,
    [data-theme="gifprocessor"] .scenario-card {
        padding: 20px;
    }
    
    [data-theme="gifprocessor"] .advanced-feature-icon,
    [data-theme="gifprocessor"] .scenario-icon {
        width: 60px;
        height: 60px;
        font-size: 1.75rem;
    }
    
    [data-theme="gifprocessor"] .advanced-feature-title,
    [data-theme="gifprocessor"] .scenario-title {
        font-size: 1.1rem;
    }
}

/* About 页面样式 */
[data-theme="gifprocessor"] .about-page-wrapper {
    padding: 0;
}

[data-theme="gifprocessor"] .about-hero {
    background: linear-gradient(135deg, #fffbeb, #fef3c7);
    padding: 80px 0 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

[data-theme="gifprocessor"] .about-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(245, 158, 11, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(245, 158, 11, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
}

[data-theme="gifprocessor"] .about-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(239, 68, 68, 0.1));
    border: 1px solid rgba(245, 158, 11, 0.2);
    border-radius: 20px;
    color: #d97706;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

[data-theme="gifprocessor"] .about-hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #d97706, #ef4444);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 15px;
    position: relative;
    z-index: 1;
}

[data-theme="gifprocessor"] .about-hero-subtitle {
    font-size: 1.1rem;
    color: #64748b;
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

[data-theme="gifprocessor"] .about-content {
    padding: 60px 0;
}

[data-theme="gifprocessor"] .about-section {
    margin-bottom: 40px;
}

[data-theme="gifprocessor"] .about-card {
    background: #ffffff;
    border: 1px solid rgba(245, 158, 11, 0.1);
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

[data-theme="gifprocessor"] .about-card:hover {
    box-shadow: 0 8px 30px rgba(245, 158, 11, 0.1);
}

[data-theme="gifprocessor"] .about-card-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid rgba(245, 158, 11, 0.1);
}

[data-theme="gifprocessor"] .about-card-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: #ffffff;
    flex-shrink: 0;
}

[data-theme="gifprocessor"] .about-card-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1e293b;
}

[data-theme="gifprocessor"] .about-card-subtitle {
    font-size: 0.9rem;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 1px;
}

[data-theme="gifprocessor"] .about-text {
    color: #475569;
    line-height: 1.8;
    margin-bottom: 20px;
    font-size: 1rem;
}

[data-theme="gifprocessor"] .about-text p {
    margin-bottom: 12px;
}

[data-theme="gifprocessor"] .about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin: 30px 0;
    padding: 30px;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.05), rgba(239, 68, 68, 0.05));
    border-radius: 12px;
    border: 1px solid rgba(245, 158, 11, 0.1);
}

[data-theme="gifprocessor"] .about-stat-item {
    text-align: center;
    padding: 15px;
}

[data-theme="gifprocessor"] .about-stat-value {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

[data-theme="gifprocessor"] .about-stat-label {
    font-size: 0.9rem;
    color: #64748b;
}

[data-theme="gifprocessor"] .about-images {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 30px;
}

[data-theme="gifprocessor"] .about-image {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.1);
}

[data-theme="gifprocessor"] .about-image img {
    width: 100%;
    height: auto;
    transition: transform 0.3s ease;
}

[data-theme="gifprocessor"] .about-image:hover img {
    transform: scale(1.05);
}

[data-theme="gifprocessor"] .about-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

[data-theme="gifprocessor"] .about-feature-card {
    text-align: center;
    padding: 25px 20px;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.03), rgba(239, 68, 68, 0.03));
    border-radius: 12px;
    border: 1px solid rgba(245, 158, 11, 0.1);
    transition: all 0.3s ease;
}

[data-theme="gifprocessor"] .about-feature-card:hover {
    border-color: #f59e0b;
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.15);
    transform: translateY(-5px);
}

[data-theme="gifprocessor"] .about-feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #ffffff;
    margin: 0 auto 15px;
}

[data-theme="gifprocessor"] .about-feature-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 10px;
}

[data-theme="gifprocessor"] .about-feature-desc {
    font-size: 0.9rem;
    color: #64748b;
    line-height: 1.6;
}

[data-theme="gifprocessor"] .about-tech-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

[data-theme="gifprocessor"] .about-tech-item {
    padding: 25px 20px;
    text-align: center;
    background: #ffffff;
    border: 1px solid rgba(245, 158, 11, 0.1);
    border-radius: 12px;
    transition: all 0.3s ease;
}

[data-theme="gifprocessor"] .about-tech-item:hover {
    border-color: #f59e0b;
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.15);
    transform: translateY(-5px);
}

[data-theme="gifprocessor"] .about-tech-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(239, 68, 68, 0.1));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #f59e0b;
    margin: 0 auto 15px;
}

[data-theme="gifprocessor"] .about-tech-item h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 10px;
}

[data-theme="gifprocessor"] .about-tech-item p {
    font-size: 0.9rem;
    color: #64748b;
    line-height: 1.6;
}

@media (max-width: 991px) {
    [data-theme="gifprocessor"] .about-stats,
    [data-theme="gifprocessor"] .about-features,
    [data-theme="gifprocessor"] .about-tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    [data-theme="gifprocessor"] .about-hero {
        padding: 60px 0 40px;
    }
    
    [data-theme="gifprocessor"] .about-hero-title {
        font-size: 1.8rem;
    }
    
    [data-theme="gifprocessor"] .about-hero-subtitle {
        font-size: 0.95rem;
    }
    
    [data-theme="gifprocessor"] .about-card {
        padding: 25px 20px;
    }
    
    [data-theme="gifprocessor"] .about-stats,
    [data-theme="gifprocessor"] .about-features,
    [data-theme="gifprocessor"] .about-tech-grid {
        grid-template-columns: 1fr;
    }
    
    [data-theme="gifprocessor"] .about-images {
        grid-template-columns: 1fr;
    }
}

/* ========================================
     GIFProcessor 产品主题变量 - 橙黄色系
   ======================================== */
[data-theme="gifprocessor"] {
    --help-primary: #f59e0b;
    --help-primary-light: #fbbf24;
    --help-gradient: linear-gradient(135deg, #f59e0b, #ef4444);
    --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);
}

/* ========================================
   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(245, 158, 11, 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, #f59e0b, #ef4444));
    -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(245, 158, 11, 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, #f59e0b, #ef4444));
    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(245, 158, 11, 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;
}

/* 左侧分类导航 */
.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(245, 158, 11, 0.04);
    padding-left: 28px;
}

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

.help-category-item.active {
    color: var(--help-primary);
    background: rgba(245, 158, 11, 0.08);
    font-weight: 600;
}

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

/* 右侧文章列表 */
.help-content {
    animation: fadeInRight 0.8s ease-out 0.6s both;
}

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

.help-article-item {
    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: flex;
    gap: 20px;
}

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

.article-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    background: var(--help-gradient, linear-gradient(135deg, #f59e0b, #ef4444));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.article-content {
    flex: 1;
}

.article-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--help-text);
    margin-bottom: 8px;
}

.article-desc {
    color: var(--help-text-secondary);
    line-height: 1.6;
    font-size: 0.9375rem;
    margin-bottom: 12px;
}

.article-meta {
    font-size: 0.875rem;
    color: #94a3b8;
    display: flex;
    align-items: center;
    gap: 8px;
}

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

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

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

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

/* ========================================
   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(245, 158, 11, 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(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 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, #f59e0b, #ef4444));
    -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-section:nth-child(4) { animation-delay: 1.2s; }

.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, #f59e0b, #ef4444));
    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-text p {
    margin-bottom: 12px;
}

.about-text p: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;
}

/* 特色卡片网格 */
.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(245, 158, 11, 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;
}

/* ========================================
   动画效果
   ======================================== */

@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);
    }
}

/* ========================================
   响应式设计
   ======================================== */

@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-item {
        padding: 20px;
        flex-direction: column;
    }

    .article-icon {
        align-self: flex-start;
    }

    .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;
    }

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

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

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

/* ========================================
   分页样式优化
   ======================================== */

.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(245, 158, 11, 0.08);
    border-color: var(--help-primary);
    color: var(--help-primary);
}

.page-item.active .page-link {
    background: var(--help-gradient, linear-gradient(135deg, #f59e0b, #ef4444));
    border-color: transparent;
    color: white;
}

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