/* ========================================
   产品详情页通用样式
   适用于: enterprise/, industrial/, warsoul/ 下的产品详情页
   ======================================== */

/* CSS变量 - 品牌主题色 */
:root {
    --brand-primary: #3b82f6;
    --brand-secondary: #8b5cf6;
    --brand-gradient: linear-gradient(135deg, #3b82f6, #8b5cf6);
}

/* 企业级主题 */
.theme-enterprise {
    --brand-primary: #3b82f6;
    --brand-secondary: #8b5cf6;
    --brand-gradient: linear-gradient(135deg, #3b82f6, #8b5cf6);
}

/* 工业级主题 */
.theme-industrial {
    --brand-primary: #f97316;
    --brand-secondary: #ea580c;
    --brand-gradient: linear-gradient(135deg, #f97316, #ea580c);
}

/* 战魂级主题 */
.theme-warsoul {
    --brand-primary: #dc2626;
    --brand-secondary: #b91c1c;
    --brand-gradient: linear-gradient(135deg, #dc2626, #b91c1c);
}

/* ========================================
   Hero Section
   ======================================== */
.product-hero {
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #312e81 100%);
    color: #fff;
    padding: 120px 20px 80px;
    position: relative;
    overflow: hidden;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.product-hero::before {
    content: '';
    position: absolute;
    top: 10%;
    left: 10%;
    width: 300px;
    height: 300px;
    background: rgba(59, 130, 246, 0.2);
    border-radius: 50%;
    filter: blur(100px);
    animation: pulse 4s ease-in-out infinite;
}

.product-hero::after {
    content: '';
    position: absolute;
    bottom: 10%;
    right: 10%;
    width: 400px;
    height: 400px;
    background: rgba(139, 92, 246, 0.2);
    border-radius: 50%;
    filter: blur(100px);
    animation: pulse 4s ease-in-out infinite 1s;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.1); }
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-info h1,
.hero-content h1,
.hero-title {
    font-size: 3.2rem;
    font-weight: 800;
    margin-bottom: 20px;
    background: linear-gradient(to right, #fff, #bfdbfe);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.4rem;
    color: #93c5fd;
    margin-bottom: 30px;
    font-weight: 300;
}

.hero-description {
    position: relative;
    padding-left: 25px;
    margin-bottom: 40px;
}

.hero-description::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--brand-gradient);
    border-radius: 2px;
}

.hero-description p,
.hero-desc {
    font-size: 1.1rem;
    color: #e2e8f0;
    line-height: 1.8;
}

/* 规格卡片 */
.spec-cards,
.specs-card,
.hero-specs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.spec-card,
.spec-item {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 25px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s;
}

.spec-card:hover,
.spec-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.spec-card-header {
    display: flex;
    align-items: center;
    margin-bottom: 12px;
}

.spec-card-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 12px;
    font-size: 1.2rem;
}

.spec-card-icon.blue { background: rgba(59, 130, 246, 0.2); color: #93c5fd; }
.spec-card-icon.purple { background: rgba(139, 92, 246, 0.2); color: #c4b5fd; }
.spec-card-icon.orange { background: rgba(249, 115, 22, 0.2); color: #fdba74; }
.spec-card-icon.red { background: rgba(220, 38, 38, 0.2); color: #fca5a5; }

.spec-card-label,
.spec-label {
    font-size: 0.9rem;
    color: #93c5fd;
}

.spec-card-value,
.spec-value {
    font-size: 1.4rem;
    font-weight: 700;
    color: #fff;
}

/* Hero 按钮 */
.hero-buttons,
.hero-actions {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: flex-start;
}

.btn-primary-custom,
.btn-hero-primary {
    background: var(--brand-gradient);
    color: #fff;
    padding: 16px 35px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s;
    text-decoration: none;
}

.btn-primary-custom:hover,
.btn-hero-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.3);
}

.btn-outline-custom,
.btn-hero-secondary {
    background: transparent;
    color: #fff;
    padding: 16px 35px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s;
    text-decoration: none;
}

.btn-outline-custom:hover,
.btn-hero-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    color: #93c5fd;
}

/* Hero 图片 */
.hero-image {
    display: flex;
    justify-content: center;
    position: relative;
}

.image-glow {
    position: absolute;
    inset: -30px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.3), rgba(139, 92, 246, 0.3), rgba(236, 72, 153, 0.3));
    border-radius: 30px;
    filter: blur(40px);
    opacity: 0.5;
}

.image-container {
    position: relative;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 40px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.image-container img,
.hero-image img {
    max-width: 100%;
    height: auto;
    display: block;
}

.product-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(249, 115, 22, 0.2);
    border: 1px solid rgba(249, 115, 22, 0.3);
    color: #fdba74;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.scroll-hint {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.5);
    animation: bounce 2s infinite;
}

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

/* ========================================
   Features Section
   ======================================== */
.features-section {
    padding: 100px 20px;
    background: linear-gradient(to bottom, #f8fafc, #fff);
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    background: #eff6ff;
    color: #2563eb;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.section-tag.purple { background: #f3e8ff; color: #7c3aed; }
.section-tag.indigo { background: #e0e7ff; color: #4f46e5; }
.section-tag.green { background: #dcfce7; color: #16a34a; }
.section-tag.orange { background: #ffedd5; color: #ea580c; }
.section-tag.red { background: #fee2e2; color: #dc2626; }

.section-header h2,
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 15px;
}

.section-header p,
.section-subtitle {
    font-size: 1.2rem;
    color: #64748b;
    max-width: 700px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: #fff;
    border-radius: 20px;
    padding: 35px;
    border: 1px solid #e2e8f0;
    transition: all 0.3s;
}

.feature-card:hover {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    border-color: #bfdbfe;
    transform: translateY(-5px);
}

.feature-number {
    width: 50px;
    height: 50px;
    background: var(--brand-gradient);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: 20px;
}

.feature-card h3,
.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 15px;
}

.feature-card p,
.feature-desc {
    color: #475569;
    line-height: 1.7;
    font-size: 1.05rem;
}

/* ========================================
   Advantages Section
   ======================================== */
.advantages-section {
    padding: 100px 20px;
    background: #fff;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 900px;
    margin: 0 auto;
}

.advantage-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.advantage-check {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, #22c55e, #16a34a);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
}

.advantage-item p {
    color: #475569;
    line-height: 1.7;
    font-size: 1.1rem;
}

.advantage-card {
    background: #fff;
    border-radius: 20px;
    padding: 30px;
    border: 1px solid #e2e8f0;
    transition: all 0.3s;
}

.advantage-card:hover {
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
    transform: translateY(-3px);
}

.advantage-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    background: var(--brand-gradient);
    color: #fff;
    font-size: 1.25rem;
}

/* ========================================
   Specs Section
   ======================================== */
.specs-section {
    padding: 100px 20px;
    background: linear-gradient(to bottom, #f8fafc, #f1f5f9);
}

.specs-table {
    max-width: 1000px;
    margin: 0 auto;
    background: #fff;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    border: 1px solid #e2e8f0;
}

.specs-table-header {
    background: var(--brand-gradient);
    padding: 25px 35px;
}

.specs-table-header h3 {
    color: #fff;
    font-size: 1.5rem;
    font-weight: 700;
}

.specs-grid,
.specs-table-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.spec-row,
.specs-row {
    padding: 20px 35px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #f1f5f9;
    transition: background 0.2s;
}

.spec-row:nth-child(odd),
.specs-row:nth-child(odd) {
    background: #fafafa;
    border-right: 1px solid #f1f5f9;
}

.spec-row:hover,
.specs-row:hover {
    background: #fff7ed;
}

.specs-row .label {
    color: #64748b;
    font-weight: 500;
    font-size: 1.05rem;
}

.specs-row .value {
    color: #1e293b;
    font-weight: 700;
    font-size: 1.05rem;
}

.spec-label {
    color: #64748b;
    font-weight: 500;
    font-size: 1rem;
}

.spec-value {
    color: #1e293b;
    font-weight: 700;
    font-size: 1rem;
    text-align: right;
}

/* ========================================
   Cases Section
   ======================================== */
.cases-section {
    padding: 100px 20px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.case-card {
    background: #fff;
    border-radius: 24px;
    padding: 40px;
    border: 1px solid #e2e8f0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--brand-gradient);
    opacity: 0;
    transition: opacity 0.3s;
}

.case-card:hover {
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.12);
    transform: translateY(-8px);
    border-color: transparent;
}

.case-card:hover::before {
    opacity: 1;
}

.case-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.case-card h3::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--brand-gradient);
    border-radius: 50%;
    flex-shrink: 0;
}

.case-card > p {
    color: #64748b;
    line-height: 1.8;
    margin-bottom: 24px;
    font-size: 1.05rem;
    padding-left: 20px;
    border-left: 2px solid #e2e8f0;
}

.case-header {
    display: flex;
    align-items: center;
    margin-bottom: 25px;
}

.case-number {
    width: 56px;
    height: 56px;
    background: var(--brand-gradient);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 1.4rem;
    margin-right: 20px;
}

.case-header h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: #1e293b;
}

.case-description {
    color: #475569;
    line-height: 1.8;
    margin-bottom: 25px;
    font-size: 1.05rem;
}

.case-benefits {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: 16px;
    padding: 20px 24px;
}

.case-benefits h4 {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #1e293b;
    font-weight: 600;
    margin-bottom: 15px;
}

.case-benefits h4 i { color: #22c55e; }

.case-benefit {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.2s;
}

.case-benefit:last-child {
    border-bottom: none;
}

.case-benefit:hover {
    padding-left: 8px;
}

.case-benefit i {
    width: 24px;
    height: 24px;
    background: linear-gradient(135deg, #22c55e, #16a34a);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 0.7rem;
    flex-shrink: 0;
}

.case-benefit span {
    color: #475569;
    font-size: 0.95rem;
    line-height: 1.5;
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 12px;
}

.benefit-dot {
    width: 10px;
    height: 10px;
    background: var(--brand-gradient);
    border-radius: 50%;
    margin-top: 6px;
    flex-shrink: 0;
}

.benefit-item p {
    color: #475569;
    line-height: 1.6;
}

/* 应用场景简洁卡片样式（4列布局） */
.cases-grid.compact,
.cases-grid:has(.case-icon) {
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.case-card:has(.case-icon) {
    text-align: center;
    padding: 32px 24px;
    background: #fff;
    border-radius: 20px;
    border: 1px solid #e2e8f0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.case-card:has(.case-icon)::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--brand-gradient);
    transform: scaleX(0);
    transition: transform 0.3s;
}

.case-card:has(.case-icon):hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
    border-color: transparent;
}

.case-card:has(.case-icon):hover::before {
    transform: scaleX(1);
}

.case-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.case-card:hover .case-icon {
    background: var(--brand-gradient);
    transform: scale(1.1);
}

.case-icon i {
    font-size: 1.8rem;
    background: var(--brand-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all 0.3s;
}

.case-card:hover .case-icon i {
    -webkit-text-fill-color: #fff;
    background: none;
}

.case-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1e293b;
    transition: color 0.3s;
}

.case-card:hover .case-name {
    color: #3b82f6;
}

/* ========================================
   CTA Section
   ======================================== */
.cta-section {
    padding: 100px 20px;
    background: var(--brand-gradient);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.cta-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta-tag {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 12px 25px;
    border-radius: 30px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    margin-bottom: 30px;
}

.cta-content h2 {
    font-size: 2.8rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
}

.cta-content > p {
    font-size: 1.4rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* CTA 按钮样式 */
.cta-buttons .btn {
    padding: 16px 35px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s;
    text-decoration: none;
}

.cta-buttons .btn-primary {
    background: #fff;
    color: #1e293b;
    border: none;
}

.cta-buttons .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.3);
}

.cta-buttons .btn-outline {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.cta-buttons .btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.8);
}

/* CTA区域内的主按钮使用白色背景，与渐变背景形成对比 */
.cta-section .btn-primary-custom,
.cta-buttons .btn-primary-custom {
    background: #fff;
    color: #1e40af;
    border: none;
}

.cta-section .btn-primary-custom:hover,
.cta-buttons .btn-primary-custom:hover {
    background: #f0f9ff;
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* CTA区域内的次按钮边框更明显 */
.cta-section .btn-outline-custom,
.cta-buttons .btn-outline-custom {
    border: 2px solid rgba(255, 255, 255, 0.6);
}

.cta-section .btn-outline-custom:hover,
.cta-buttons .btn-outline-custom:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: #fff;
}

/* ========================================
   Modal
   ======================================== */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

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

.modal-content {
    background: #fff;
    border-radius: 20px;
    width: 100%;
    max-width: 500px;
    padding: 35px;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 1.5rem;
    color: #94a3b8;
    cursor: pointer;
    background: none;
    border: none;
}

.modal-close:hover { color: #475569; }

.modal-content h3,
.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 25px;
}

.modal-subtitle {
    font-size: 1rem;
    color: #64748b;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    color: #475569;
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--brand-primary);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.modal-buttons {
    display: flex;
    gap: 15px;
    justify-content: flex-end;
    margin-top: 20px;
}

.btn-cancel {
    padding: 12px 25px;
    border-radius: 10px;
    border: 1px solid #e2e8f0;
    background: #fff;
    color: #64748b;
    cursor: pointer;
    font-weight: 500;
}

.btn-submit,
.submit-btn {
    padding: 12px 25px;
    border-radius: 10px;
    border: none;
    background: var(--brand-gradient);
    color: #fff;
    cursor: pointer;
    font-weight: 500;
    width: 100%;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.3);
}

.modal-message {
    margin-top: 15px;
    padding: 10px;
    border-radius: 8px;
    font-size: 0.9rem;
    display: none;
}

.modal-message.success {
    background: #dcfce7;
    color: #16a34a;
    display: block;
}

.modal-message.error {
    background: #fee2e2;
    color: #dc2626;
    display: block;
}

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

@keyframes fadeInLeft {
    from { opacity: 0; transform: translateX(-40px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(40px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes floatUp {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
}

/* Hero 动画 */
.hero-info h1,
.hero-content h1,
.hero-title { animation: fadeInLeft 0.8s ease-out 0.1s both; }
.hero-subtitle { animation: fadeInLeft 0.8s ease-out 0.2s both; }
.hero-description,
.hero-desc { animation: fadeInLeft 0.8s ease-out 0.3s both; }
.spec-cards,
.specs-card,
.hero-specs { animation: fadeInLeft 0.8s ease-out 0.4s both; }
.hero-buttons,
.hero-actions { animation: fadeInUp 0.8s ease-out 0.5s both; }
.hero-image { animation: fadeInRight 0.8s ease-out 0.3s both; }
.image-container img,
.hero-image img { animation: floatUp 3s ease-in-out infinite; }

/* 特性卡片动画 */
.feature-card {
    opacity: 0;
    animation: fadeInUp 0.6s ease-out forwards;
}
.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }
.feature-card:nth-child(5) { animation-delay: 0.5s; }
.feature-card:nth-child(6) { animation-delay: 0.6s; }

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-description {
        padding-left: 0;
    }
    
    .hero-description::before {
        display: none;
    }
    
    .spec-cards,
    .specs-card {
        max-width: 500px;
        margin: 0 auto 40px;
    }
    
    .hero-buttons,
    .hero-actions {
        justify-content: center;
    }
    
    .hero-image {
        order: -1;
        margin-bottom: 40px;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cases-grid.compact,
    .cases-grid:has(.case-icon) {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero-info h1,
    .hero-content h1,
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .spec-cards,
    .specs-card,
    .features-grid,
    .advantages-grid,
    .specs-grid,
    .specs-table-body,
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .section-header h2,
    .section-title {
        font-size: 1.8rem;
    }
    
    .cta-content h2 {
        font-size: 2rem;
    }
    
    .hero-buttons,
    .hero-actions,
    .cta-buttons {
        flex-direction: column;
    }
    
    .cta-buttons {
        align-items: center;
    }
}