/**
 * home-page.css - 首页样式
 * 深蓝靛青设计系统
 */

/* ===========================
   基础布局
   =========================== */
.home-page {
    flex: 1;
    display: flex;
    flex-direction: column;
    width: 100%;
}

.home-page > section {
    padding: 80px 32px;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0 0 12px;
    letter-spacing: -0.5px;
}

.section-desc {
    font-size: 16px;
    color: var(--color-text-secondary);
    margin: 0;
}

/* ===========================
   Hero区域
   =========================== */
.home-hero {
    position: relative;
    min-height: 560px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 100px 24px 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(79, 70, 229, 0.18) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 80% 60%, rgba(139, 92, 246, 0.12) 0%, transparent 50%),
        radial-gradient(ellipse 50% 30% at 20% 80%, rgba(249, 115, 22, 0.08) 0%, transparent 50%);
}

.hero-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 1px 1px, rgba(79, 70, 229, 0.03) 1px, transparent 0);
    background-size: 40px 40px;
    mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 720px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--color-primary-50);
    border: 1px solid var(--color-primary-200);
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: 24px;
}

.hero-badge i {
    font-size: 12px;
}

.hero-title {
    margin: 0 0 20px;
}

.hero-title .title-line {
    display: block;
    font-size: 48px;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -1px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title .title-highlight {
    display: block;
    font-size: 20px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-top: 12px;
    letter-spacing: 0.2px;
}

.hero-desc {
    font-size: 17px;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin: 0 0 32px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 40px;
}

.hero-actions .btn {
    padding: 14px 32px;
    font-size: 16px;
    font-weight: 600;
    border-radius: var(--radius-lg);
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.stat-value {
    font-size: 28px;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
}

/* 差异化数据配色 */
.stat-item:nth-child(1) .stat-value {
    color: var(--color-primary);
}

.stat-item:nth-child(3) .stat-value {
    color: var(--color-secondary);
}

.stat-item:nth-child(5) .stat-value {
    color: var(--color-accent);
}

.stat-label {
    font-size: 13px;
    color: var(--color-text-tertiary);
    font-weight: 500;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--color-border);
}

/* ===========================
   核心功能
   =========================== */
.home-features {
    background: var(--color-primary-50);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 1100px;
    margin: 0 auto;
}

.feature-card {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: 32px;
    background: var(--color-bg-surface);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    text-decoration: none;
    transition: all 0.3s ease;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-card-hover);
    border-color: transparent;
}

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

.feature-card.featured {
    border-color: var(--color-primary-200);
    background: linear-gradient(180deg, var(--color-primary-50) 0%, var(--color-bg-surface) 100%);
}

.feature-card.featured::before {
    opacity: 0.6;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
}

.feature-card.featured:hover::before {
    opacity: 1;
}

.feature-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 4px 12px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    color: white;
    font-size: 11px;
    font-weight: 600;
    border-radius: var(--radius-full);
    letter-spacing: 0.5px;
}

.feature-icon-wrap {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    font-size: 24px;
    color: white;
    margin-bottom: 20px;
}

.feature-icon-wrap.chat-icon {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
}

.feature-icon-wrap.image-icon {
    background: linear-gradient(135deg, var(--color-pink), var(--color-pink-dark));
}

.feature-icon-wrap.video-icon {
    background: linear-gradient(135deg, var(--color-cyan), #0891B2);
}

.feature-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0 0 8px;
}

.feature-desc {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin: 0 0 16px;
    flex: 1;
}

.feature-tags {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
}

.feature-tags .tag {
    padding: 4px 10px;
    background: var(--color-bg-elevated);
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
    color: var(--color-text-tertiary);
}

/* 第一个标签使用主题色 */
.feature-card:nth-child(1) .feature-tags .tag:first-child {
    background: rgba(79, 70, 229, 0.1);
    color: var(--color-primary);
    border: 1px solid rgba(79, 70, 229, 0.2);
}
.feature-card:nth-child(1) .feature-tags .tag:last-child {
    background: rgba(79, 70, 229, 0.06);
    color: var(--color-primary-dark);
    border: 1px solid rgba(79, 70, 229, 0.12);
}

.feature-card:nth-child(2) .feature-tags .tag:first-child {
    background: rgba(236, 72, 153, 0.1);
    color: var(--color-pink);
    border: 1px solid rgba(236, 72, 153, 0.2);
}
.feature-card:nth-child(2) .feature-tags .tag:last-child {
    background: rgba(236, 72, 153, 0.06);
    color: var(--color-pink-dark);
    border: 1px solid rgba(236, 72, 153, 0.12);
}

.feature-card:nth-child(3) .feature-tags .tag:first-child {
    background: rgba(6, 182, 212, 0.1);
    color: var(--color-cyan);
    border: 1px solid rgba(6, 182, 212, 0.2);
}
.feature-card:nth-child(3) .feature-tags .tag:last-child {
    background: rgba(6, 182, 212, 0.06);
    color: #0891B2;
    border: 1px solid rgba(6, 182, 212, 0.12);
}

.feature-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-primary);
    font-size: 14px;
    font-weight: 600;
    transition: gap 0.2s ease;
}

.feature-card:hover .feature-link {
    gap: 12px;
}

/* ===========================
   模型生态
   =========================== */
.home-ecosystem {
    background: var(--color-bg-surface);
}

.eco-logos {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    max-width: 1000px;
    margin: 0 auto 32px;
    min-height: 120px;
    overflow: visible;
}

/* 空状态提示 */
.eco-logos:empty::after {
    content: '加载中...';
    display: block;
    width: 100%;
    text-align: center;
    color: var(--color-text-tertiary);
    font-size: 14px;
    padding: 40px 0;
}

.eco-logo-item {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    background: var(--color-bg-page);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
    cursor: pointer;
    text-decoration: none;
}

.eco-logo-item:hover {
    transform: translateY(-4px) scale(1.05);
    border-color: var(--color-primary-200);
    box-shadow: var(--shadow-lg);
}

.eco-logo-item img {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    object-fit: cover;
    background: white;
    padding: 4px;
    transition: transform 0.3s ease;
}

.eco-logo-item:hover img {
    transform: scale(1.1);
}

.eco-logo-item .eco-name {
    position: absolute;
    bottom: -32px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 12px;
    background: var(--color-bg-elevated);
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 600;
    color: var(--color-text-primary);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-md);
    z-index: 10;
}

.eco-logo-item:hover .eco-name {
    opacity: 1;
    visibility: visible;
    bottom: -36px;
}

/* ===========================
   平台优势
   =========================== */
.home-advantages {
    background: var(--color-primary-50);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    max-width: 1000px;
    margin: 0 auto;
}

.advantage-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 12px;
    padding: 28px 20px;
    background: var(--color-bg-surface);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    transition: all 0.2s ease;
}

.advantage-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-200);
}

.advantage-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-50);
    border-radius: var(--radius-lg);
    font-size: 22px;
    color: var(--color-primary);
}

/* 极速响应 - 橙色（速度感） */
.advantage-card:nth-child(1) .advantage-icon {
    background: rgba(249, 115, 22, 0.1);
    color: var(--color-accent);
}

/* 安全可靠 - 绿色（安全感） */
.advantage-card:nth-child(2) .advantage-icon {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
}

/* 实时更新 - 青色（科技感） */
.advantage-card:nth-child(3) .advantage-icon {
    background: rgba(6, 182, 212, 0.1);
    color: var(--color-cyan);
}

/* 创作历史 - 紫色（品牌色） */
.advantage-card:nth-child(4) .advantage-icon {
    background: rgba(139, 92, 246, 0.1);
    color: var(--color-secondary);
}

.advantage-card h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0;
}

.advantage-card p {
    font-size: 13px;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* ===========================
   快速开始
   =========================== */
.home-quickstart {
    background: linear-gradient(180deg, var(--color-primary-50) 0%, var(--color-bg-page) 100%);
}

.quickstart-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.quickstart-content h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0 0 48px;
}

.steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 32px 28px;
    background: var(--color-bg-surface);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    flex: 1;
    max-width: 220px;
    position: relative;
}

.step-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    border-radius: var(--radius-lg);
    font-size: 20px;
    color: white;
}

/* 第二步 - 辅助紫色 */
.steps > :nth-child(3) .step-icon {
    background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-dark));
}

.steps > :nth-child(3) .step-num {
    background: var(--color-secondary);
}

/* 第三步 - 强调橙色 */
.steps > :nth-child(5) .step-icon {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
}

.steps > :nth-child(5) .step-num {
    background: var(--color-accent);
}

.step-num {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 12px;
    background: var(--color-primary);
    color: white;
    font-size: 12px;
    font-weight: 700;
    border-radius: var(--radius-full);
    letter-spacing: 1px;
}

.step h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0;
}

.step p {
    font-size: 13px;
    color: var(--color-text-secondary);
    margin: 0;
}

.step-connector {
    display: flex;
    align-items: center;
    padding: 0 8px;
    color: var(--color-text-muted);
}

.step-connector .connector-line {
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, var(--color-border), var(--color-primary-200));
    border-radius: 1px;
}

.step-connector i {
    font-size: 12px;
    color: var(--color-primary);
    margin-left: -4px;
}

/* ===========================
   CTA
   =========================== */
.home-cta {
    position: relative;
    padding: 100px 24px !important;
    text-align: center;
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
}

/* 装饰圆 - 左上 */
.home-cta::before {
    content: '';
    position: absolute;
    width: 420px;
    height: 420px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.07);
    top: -120px;
    left: -80px;
    pointer-events: none;
    animation: cta-float 9s ease-in-out infinite;
}

/* 装饰圆 - 右下 */
.home-cta::after {
    content: '';
    position: absolute;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    bottom: -60px;
    right: -40px;
    pointer-events: none;
    animation: cta-float 7s ease-in-out infinite reverse;
}

@keyframes cta-float {
    0%, 100% { transform: translateY(0) scale(1); }
    50%       { transform: translateY(-18px) scale(1.04); }
}

.cta-content {
    position: relative;
    z-index: 1;
    max-width: 680px;
    margin: 0 auto;
}

.cta-icon-wrap {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: var(--radius-xl);
    font-size: 26px;
    color: white;
    margin-bottom: 24px;
}

.cta-title {
    font-size: 40px;
    font-weight: 800;
    color: white;
    margin: 0 0 16px;
    letter-spacing: -0.5px;
    line-height: 1.15;
}

.cta-desc {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.82);
    margin: 0 0 36px;
    line-height: 1.6;
}

.cta-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 36px;
}

.cta-btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 700;
    background: white;
    color: var(--color-primary);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    text-decoration: none;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    transition: all 0.25s ease;
    font-family: inherit;
}

.cta-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.28);
    color: var(--color-primary-dark);
}

.cta-btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.12);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: var(--radius-lg);
    cursor: pointer;
    text-decoration: none;
    transition: all 0.25s ease;
    font-family: inherit;
}

.cta-btn-ghost:hover {
    background: rgba(255, 255, 255, 0.22);
    transform: translateY(-3px);
    color: white;
}

.cta-features {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
}

.cta-feature-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.75);
}

.cta-feature-tag i {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.9);
}

.cta-feature-dot {
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.35);
    display: inline-block;
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .home-cta {
        padding: 72px 20px !important;
    }

    .cta-title {
        font-size: 28px;
    }

    .cta-desc {
        font-size: 15px;
    }

    .cta-actions {
        flex-direction: column;
        align-items: center;
    }

    .cta-btn-primary,
    .cta-btn-ghost {
        width: 100%;
        max-width: 280px;
    }
}

/* ===========================
   响应式设计
   =========================== */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .home-page > section {
        padding: 60px 20px;
    }
    
    .section-title {
        font-size: 26px;
    }
    
    .hero-title .title-line {
        font-size: 36px;
    }
    
    .hero-title .title-highlight {
        font-size: 18px;
    }
    
    .hero-stats {
        gap: 20px;
    }
    
    .stat-value {
        font-size: 24px;
    }
    
    .eco-logos {
        gap: 12px;
    }
    
    .eco-logo-item {
        width: 56px;
        height: 56px;
    }
    
    .eco-logo-item img {
        width: 36px;
        height: 36px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
        max-width: 100%;
    }
    
    .steps {
        flex-direction: column;
        gap: 24px;
    }
    
    .step-connector {
        transform: rotate(90deg);
        padding: 16px 0;
        margin: -8px 0;
    }
    
    .step {
        max-width: 100%;
    }
}

/* ===========================
   打字机效果
   =========================== */
.hero-typing-wrap {
    display: block;
    font-size: 17px;
    color: var(--color-text-secondary);
    margin-top: 4px;
    margin-bottom: 32px;
    min-height: 28px;
}

.hero-typing {
    color: var(--color-primary);
    font-weight: 600;
    border-right: 2px solid var(--color-primary);
    padding-right: 3px;
    animation: blink-cursor 0.75s step-end infinite;
}

@keyframes blink-cursor {
    0%, 100% { border-color: var(--color-primary); }
    50% { border-color: transparent; }
}

/* ===========================
   回到顶部
   =========================== */
.scroll-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    box-shadow: var(--shadow-primary);
    font-size: 16px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: all 0.3s ease;
    z-index: var(--z-fixed);
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-to-top:hover {
    background: var(--color-primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-primary-lg);
}

@media (max-width: 768px) {
    .scroll-to-top {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
    }
}

/* ===========================
   页脚
   =========================== */
.home-footer {
    background: var(--color-bg-surface);
    border-top: 1px solid var(--color-border);
    padding: 48px 32px 32px;
}

.footer-inner {
    max-width: 1100px;
    margin: 0 auto;
}

.footer-top {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text-primary);
    text-decoration: none;
}

.footer-logo i {
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    border-radius: var(--radius-md);
    font-size: 16px;
    color: white;
}

.footer-tagline {
    font-size: 13px;
    color: var(--color-text-tertiary);
    line-height: 1.6;
    max-width: 220px;
}

.footer-col h5 {
    font-size: 13px;
    font-weight: 700;
    color: var(--color-text-primary);
    text-transform: uppercase;
    letter-spacing: 0.8px;
    margin: 0 0 16px;
}

.footer-col a {
    display: block;
    font-size: 14px;
    color: var(--color-text-secondary);
    text-decoration: none;
    margin-bottom: 10px;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
}

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

.footer-badges {
    display: flex;
    gap: 8px;
}

.footer-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 12px;
    color: var(--color-text-tertiary);
}

.footer-badge i {
    font-size: 11px;
    color: var(--color-primary);
}

@media (max-width: 1024px) {
    .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .home-footer {
        padding: 40px 20px 24px;
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .footer-tagline {
        max-width: 100%;
    }
}

/* ===========================
   Skeleton 加载占位
   =========================== */
.eco-skeleton {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
}

.eco-skeleton-item {
    width: 72px;
    height: 72px;
    border-radius: var(--radius-xl);
    background: linear-gradient(90deg, var(--color-bg-elevated) 25%, var(--color-bg-hover) 50%, var(--color-bg-elevated) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
}

/* ===========================
   CTA Section (重构版)
   =========================== */
.cta-section {
    background: linear-gradient(135deg, #4F46E5 0%, #8B5CF6 100%);
    padding: 96px 32px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: rgba(255,255,255,0.06);
    top: -160px;
    left: -100px;
    pointer-events: none;
}

.cta-section::after {
    content: '';
    position: absolute;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: rgba(255,255,255,0.05);
    bottom: -80px;
    right: -60px;
    pointer-events: none;
}

.cta-wrap {
    position: relative;
    z-index: 1;
    max-width: 660px;
    margin: 0 auto;
}

.cta-badge-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.2);
    font-size: 24px;
    color: #fff;
    margin-bottom: 24px;
}

.cta-heading {
    font-size: 38px;
    font-weight: 800;
    color: #ffffff;
    margin: 0 0 14px;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.cta-subtext {
    font-size: 17px;
    color: rgba(255,255,255,0.8);
    margin: 0 0 36px;
    line-height: 1.65;
}

.cta-btns {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

.cta-primary-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 30px;
    font-size: 15px;
    font-weight: 700;
    color: #4F46E5;
    background: #ffffff;
    border: none;
    border-radius: 12px;
    text-decoration: none;
    cursor: pointer;
    box-shadow: 0 4px 18px rgba(0,0,0,0.18);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    font-family: inherit;
}

.cta-primary-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 28px rgba(0,0,0,0.25);
    color: #4338CA;
}

.cta-outline-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 30px;
    font-size: 15px;
    font-weight: 600;
    color: #ffffff;
    background: rgba(255,255,255,0.1);
    border: 1.5px solid rgba(255,255,255,0.3);
    border-radius: 12px;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.2s ease, background 0.2s ease;
    font-family: inherit;
}

.cta-outline-btn:hover {
    background: rgba(255,255,255,0.2);
    transform: translateY(-3px);
    color: #ffffff;
}

.cta-tags {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 13px;
    font-weight: 500;
    color: rgba(255,255,255,0.72);
}

.cta-tags span {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.cta-tags span i {
    font-size: 11px;
    color: rgba(255,255,255,0.88);
}

.cta-dot {
    font-size: 4px !important;
    color: rgba(255,255,255,0.3) !important;
}

@media (max-width: 768px) {
    .cta-section {
        padding: 68px 20px;
    }

    .cta-heading {
        font-size: 26px;
    }

    .cta-subtext {
        font-size: 15px;
    }

    .cta-btns {
        flex-direction: column;
        align-items: center;
    }

    .cta-primary-btn,
    .cta-outline-btn {
        width: 100%;
        max-width: 260px;
        justify-content: center;
    }
}