/* ====================
   导航栏样式 - QooApp二次元风格
   ==================== */

.main-navigation {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 72px;
    background-color: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 182, 193, 0.4);
    box-shadow: 0 2px 20px rgba(155, 89, 182, 0.12);
    z-index: 1000;
    transition: all var(--transition-base);
}

.main-navigation.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 30px rgba(155, 89, 182, 0.18);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-primary);
    transition: all var(--transition-base);
    text-decoration: none;
}

.nav-logo:hover {
    color: var(--color-accent);
    transform: scale(1.02);
}

.logo-icon {
    font-family: var(--font-code);
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: white;
    padding: 10px 14px;
    border-radius: var(--radius-xl);
    font-weight: 900;
    font-size: 16px;
    line-height: 1.2;
    box-shadow: 0 4px 15px rgba(155, 89, 182, 0.4);
    position: relative;
    overflow: hidden;
}

.logo-icon::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 var(--transition-slow);
}

.logo-icon:hover::before {
    left: 100%;
}

.logo-image {
    height: 52px;
    width: auto;
    max-height: 52px;
    object-fit: contain;
    filter: drop-shadow(0 2px 8px rgba(155, 89, 182, 0.3));
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 900;
    color: var(--color-text);
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    gap: 8px;
    align-items: center;
}

.nav-item {
    position: relative;
}

.nav-link {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text-light);
    padding: 12px 22px;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    position: relative;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.nav-icon {
    font-size: 18px;
    transition: transform var(--transition-base);
}

.nav-text {
    position: relative;
}

.nav-link:hover .nav-icon {
    transform: scale(1.15) rotate(5deg);
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: var(--radius-full);
    transition: width var(--transition-base);
}

.nav-link:hover {
    color: var(--color-primary);
    background-color: rgba(155, 89, 182, 0.08);
}

.nav-link:hover::before {
    width: 60%;
}

.nav-link.active {
    color: var(--color-white);
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    font-weight: 700;
    box-shadow: 0 4px 20px rgba(155, 89, 182, 0.4);
}

.nav-link.active::before {
    width: 0;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.nav-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, rgba(233, 30, 99, 0.15), rgba(191, 90, 242, 0.12));
    border: 1px solid rgba(233, 30, 99, 0.3);
    padding: 8px 16px;
    border-radius: var(--radius-full);
    animation: badge-bounce 2s ease-in-out infinite;
}

@keyframes badge-bounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-neon-pink));
    border-radius: 50%;
    animation: pulse-dot 1.5s ease-in-out infinite;
    box-shadow: 0 0 10px rgba(233, 30, 99, 0.6);
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(233, 30, 99, 0.7); }
    50% { opacity: 0.8; box-shadow: 0 0 0 10px rgba(233, 30, 99, 0); }
}

.badge-text {
    font-size: 11px;
    font-weight: 900;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: var(--text-2xl);
    cursor: pointer;
    color: var(--color-text);
    padding: 8px;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.nav-toggle:hover {
    background-color: rgba(155, 89, 182, 0.1);
    color: var(--color-primary);
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
        border-bottom: 1px solid var(--color-gray-200);
        box-shadow: var(--shadow-xl);
        animation: slide-down 0.3s ease-out;
    }

    @keyframes slide-down {
        from { transform: translateY(-10px); opacity: 0; }
        to { transform: translateY(0); opacity: 1; }
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-toggle {
        display: block;
    }

    .nav-link {
        width: 100%;
        text-align: center;
        padding: 16px var(--spacing-md);
        font-size: var(--text-base);
    }

    .nav-link::before {
        display: none;
    }
}

/* ====================
   英雄区样式 - QooApp二次元风格
   ==================== */

.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 72px;
}

.hero-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-4xl) var(--spacing-lg);
    text-align: center;
    color: var(--color-white);
    position: relative;
    z-index: 1;
    width: 100%;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.18);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 12px 28px;
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    margin-bottom: var(--spacing-2xl);
    color: rgba(255, 255, 255, 0.95);
    animation: badge-pulse 2s ease-in-out infinite;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

@keyframes badge-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.03); }
}

.hero-badge-dot {
    width: 12px;
    height: 12px;
    background: linear-gradient(135deg, #D7BDE2, #F5B7D1);
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
    box-shadow: 0 0 15px rgba(245, 183, 209, 0.8);
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(245, 183, 209, 0.7); }
    50% { opacity: 0.8; box-shadow: 0 0 0 16px rgba(245, 183, 209, 0); }
}

.hero-title {
    font-size: clamp(3.5rem, 10vw, 6rem);
    font-weight: 900;
    line-height: 1.02;
    margin-bottom: var(--spacing-xl);
    color: var(--color-white);
    letter-spacing: -0.04em;
}

.hero-title-gradient {
    background: linear-gradient(135deg, #FFFFFF 0%, #FCE7F3 30%, #D7BDE2 60%, #F5B7D1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    margin-top: 12px;
    text-shadow: 0 0 80px rgba(215, 189, 226, 0.6);
    animation: title-glow 3s ease-in-out infinite;
}

@keyframes title-glow {
    0%, 100% { filter: brightness(1); }
    50% { filter: brightness(1.1); }
}

.hero-subtitle {
    font-size: var(--text-xl);
    font-weight: 500;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: var(--spacing-md);
}

.hero-description {
    font-size: var(--text-lg);
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: var(--spacing-3xl);
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    margin-bottom: var(--spacing-4xl);
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-4xl);
    flex-wrap: wrap;
}

.hero-stat {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-2xl);
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(12px);
    border-radius: var(--radius-2xl);
    border: 1px solid rgba(255, 255, 255, 0.18);
    min-width: 150px;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.hero-stat::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-neon-purple), var(--color-neon-pink));
}

.hero-stat:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.18);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.hero-stat-num {
    font-size: var(--text-4xl);
    font-weight: 900;
    color: var(--color-white);
    line-height: 1.2;
    background: linear-gradient(135deg, #FCE7F3, #D7BDE2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-stat-label {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.8);
    margin-top: 8px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-stat-divider {
    width: 1px;
    height: 80px;
    background: rgba(255, 255, 255, 0.15);
}

.hero-image-wrap {
    position: relative;
    max-width: 1100px;
    margin: 0 auto;
}

.hero-image-glow {
    position: absolute;
    top: -20%;
    left: -15%;
    right: -15%;
    bottom: -20%;
    background: radial-gradient(ellipse at center, rgba(155, 89, 182, 0.6) 0%, transparent 70%);
    filter: blur(60px);
    z-index: -1;
    animation: float 15s ease-in-out infinite;
}

.hero-img {
    width: 100%;
    border-radius: var(--radius-3xl);
    box-shadow: 0 40px 120px -40px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: all var(--transition-slow);
}

.hero-img:hover {
    transform: scale(1.02);
    box-shadow: 0 50px 150px -50px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(255, 255, 255, 0.2);
}

/* ====================
   Section Tag - QooApp二次元风格
   ==================== */

.section-tag {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(135deg, rgba(155, 89, 182, 0.15), rgba(233, 30, 99, 0.12));
    color: var(--color-primary);
    padding: 10px 24px;
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    border: 1px solid rgba(155, 89, 182, 0.25);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: 0 2px 10px rgba(155, 89, 182, 0.1);
}

/* ====================
   功能卡片网格 - QooApp二次元风格
   ==================== */

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: var(--spacing-2xl);
}

.card-feature-icon-wrap {
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(155, 89, 182, 0.18), rgba(233, 30, 99, 0.12));
    color: var(--color-primary);
    border-radius: var(--radius-2xl);
    margin-bottom: var(--spacing-xl);
    transition: all var(--transition-base);
    box-shadow: 0 6px 20px rgba(155, 89, 182, 0.15);
    position: relative;
    overflow: hidden;
}

.card-feature-icon-wrap::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 var(--transition-slow);
}

.card-feature:hover .card-feature-icon-wrap {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: var(--color-white);
    transform: scale(1.15);
    box-shadow: 0 12px 35px rgba(155, 89, 182, 0.45);
}

.card-feature:hover .card-feature-icon-wrap::before {
    left: 100%;
}

.card-feature-title {
    font-size: var(--text-xl);
    font-weight: 800;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.card-feature-description {
    font-size: var(--text-base);
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 0;
}

/* ====================
   版本卡片 - QooApp二次元风格
   ==================== */

.version-hero-card {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: var(--spacing-3xl);
    background: var(--color-white);
    border-radius: var(--radius-4xl);
    padding: var(--spacing-4xl);
    box-shadow: var(--shadow-2xl);
    border: 1px solid var(--color-gray-200);
    position: relative;
    overflow: hidden;
}

.version-hero-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-primary));
    background-size: 200% 100%;
    animation: border-flow 3s linear infinite;
}

@media (max-width: 900px) {
    .version-hero-card {
        grid-template-columns: 1fr;
        padding: var(--spacing-2xl);
    }
}

.version-badge-wrap {
    margin-bottom: var(--spacing-md);
}

.version-tag {
    display: inline-block;
    padding: 8px 20px;
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.version-tag.stable {
    background: linear-gradient(135deg, rgba(155, 89, 182, 0.2), rgba(187, 143, 206, 0.15));
    color: var(--color-primary-dark);
    border: 1px solid rgba(155, 89, 182, 0.3);
}

.version-tag.beta {
    background: linear-gradient(135deg, rgba(243, 156, 18, 0.2), rgba(247, 202, 24, 0.15));
    color: #D68910;
    border: 1px solid rgba(243, 156, 18, 0.3);
}

.version-tag.nightly {
    background: linear-gradient(135deg, rgba(231, 76, 60, 0.2), rgba(236, 112, 99, 0.15));
    color: #C0392B;
    border: 1px solid rgba(231, 76, 60, 0.3);
}

.version-hero-title {
    font-size: var(--text-3xl);
    font-weight: 900;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.03em;
}

.version-hero-meta {
    display: flex;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.version-meta-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--color-text-light);
    font-size: var(--text-sm);
}

.version-meta-item svg {
    color: var(--color-primary);
}

.version-hero-changelog h4 {
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.changelog-list {
    list-style: none;
    padding: 0;
    margin-bottom: var(--spacing-xl);
}

.changelog-list li {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 10px 0;
    color: var(--color-text-light);
    font-size: var(--text-base);
    border-bottom: 1px solid var(--color-gray-100);
}

.changelog-list li:last-child {
    border-bottom: none;
}

.changelog-dot {
    width: 10px;
    height: 10px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: 50%;
    margin-top: 10px;
    flex-shrink: 0;
    box-shadow: 0 0 10px rgba(155, 89, 182, 0.5);
}

.version-hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.version-feature-badge {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 24px;
    background: linear-gradient(135deg, var(--color-gray-50), rgba(233, 30, 99, 0.04));
    border-radius: var(--radius-2xl);
    margin-bottom: var(--spacing-md);
    transition: all var(--transition-base);
    border: 1px solid var(--color-gray-200);
    position: relative;
    overflow: hidden;
}

.version-feature-badge::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
    border-radius: var(--radius-full);
}

.version-feature-badge:hover {
    background: linear-gradient(135deg, var(--color-gray-100), rgba(233, 30, 99, 0.06));
    transform: translateX(10px);
    border-color: var(--color-gray-300);
    box-shadow: var(--shadow-lg);
}

.feature-badge-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: var(--radius-xl);
    font-size: 28px;
    box-shadow: 0 6px 20px rgba(155, 89, 182, 0.4);
    flex-shrink: 0;
}

.feature-badge-text strong {
    display: block;
    color: var(--color-text);
    font-weight: 800;
    margin-bottom: 6px;
}

.feature-badge-text span {
    font-size: var(--text-sm);
    color: var(--color-text-light);
}

/* ====================
   性能数据卡片 - QooApp二次元风格
   ==================== */

.perf-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-2xl);
}

.perf-card {
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-xl);
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--color-gray-200);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.perf-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 5px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: 0 0 20px 20px;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.perf-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(155, 89, 182, 0.08) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.perf-card:hover {
    border-color: transparent;
    box-shadow: var(--shadow-2xl);
    transform: translateY(-12px) scale(1.02);
}

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

.perf-card:hover::after {
    opacity: 1;
}

.perf-number {
    font-size: 4.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.04em;
    position: relative;
    z-index: 1;
}

.perf-unit {
    font-size: 1.75rem;
    font-weight: 700;
    margin-left: 6px;
}

.perf-label {
    font-size: var(--text-lg);
    font-weight: 800;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
    position: relative;
    z-index: 1;
}

.perf-desc {
    font-size: var(--text-sm);
    color: var(--color-text-light);
    margin-bottom: 0;
    position: relative;
    z-index: 1;
}

/* ====================
   用户评价卡片 - QooApp二次元风格
   ==================== */

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: var(--spacing-2xl);
}

.testimonial-card {
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-3xl);
    border: 1px solid var(--color-gray-200);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: var(--spacing-xl);
    right: var(--spacing-xl);
    font-size: 7rem;
    font-weight: 900;
    color: rgba(155, 89, 182, 0.06);
    line-height: 1;
}

.testimonial-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    opacity: 0;
    transition: opacity var(--transition-base);
}

.testimonial-card:hover {
    box-shadow: var(--shadow-2xl);
    transform: translateY(-10px);
    border-color: transparent;
}

.testimonial-card:hover::after {
    opacity: 1;
}

.testimonial-stars {
    display: flex;
    gap: 8px;
    margin-bottom: var(--spacing-md);
}

.testimonial-text {
    font-size: var(--text-base);
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.author-avatar {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: var(--color-white);
    font-weight: 900;
    font-size: var(--text-2xl);
    border-radius: 50%;
    box-shadow: 0 6px 20px rgba(155, 89, 182, 0.4);
    transition: all var(--transition-base);
}

.testimonial-card:hover .author-avatar {
    transform: scale(1.1);
    box-shadow: 0 8px 25px rgba(155, 89, 182, 0.5);
}

.author-info strong {
    display: block;
    color: var(--color-text);
    font-weight: 700;
}

.author-info span {
    font-size: var(--text-sm);
    color: var(--color-text-light);
}

/* ====================
   步骤样式 - QooApp二次元风格
   ==================== */

.steps-list {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-lg);
    position: relative;
}

.step-item {
    flex: 1;
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-xl);
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--color-gray-200);
    transition: all var(--transition-base);
    z-index: 1;
    position: relative;
    overflow: hidden;
}

.step-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    opacity: 0;
    transition: opacity var(--transition-base);
}

.step-item:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-10px);
    border-color: transparent;
}

.step-item:hover::before {
    opacity: 1;
}

.step-number-wrap {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: var(--color-white);
    border-radius: var(--radius-2xl);
    box-shadow: 0 10px 30px rgba(155, 89, 182, 0.5);
    position: relative;
}

.step-number-wrap::after {
    content: '';
    position: absolute;
    top: -6px;
    left: -6px;
    right: -6px;
    bottom: -6px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: var(--radius-2xl);
    z-index: -1;
    opacity: 0.4;
    filter: blur(12px);
}

.step-item:hover .step-number-wrap {
    transform: scale(1.15);
    box-shadow: 0 15px 40px rgba(155, 89, 182, 0.6);
}

.step-number {
    font-size: var(--text-4xl);
    font-weight: 900;
}

.step-title {
    font-size: var(--text-xl);
    font-weight: 800;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.step-description {
    font-size: var(--text-base);
    color: var(--color-text-light);
    line-height: 1.7;
}

.step-line {
    display: none;
}

@media (min-width: 900px) {
    .step-line {
        display: block;
        flex: 0 0 60px;
        height: 4px;
        background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
        margin-top: 76px;
        border-radius: var(--radius-full);
        box-shadow: 0 2px 15px rgba(155, 89, 182, 0.4);
    }
}

@media (max-width: 768px) {
    .steps-list {
        flex-direction: column;
    }
}

/* ====================
   CTA 区域 - QooApp二次元风格
   ==================== */

.cta-section {
    background: linear-gradient(135deg, #4A148C 0%, #6A1B9A 20%, #8E44AD 40%, #9B59B6 55%, #E91E63 70%, #FF4081 85%, #FF80AB 100%);
    padding: var(--spacing-4xl) var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -15%;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(191, 90, 242, 0.4) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 12s ease-in-out infinite;
}

.cta-section::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 45, 85, 0.35) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 10s ease-in-out infinite reverse;
}

.cta-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-3xl);
    max-width: var(--max-width);
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: var(--text-5xl);
    font-weight: 900;
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.03em;
}

.cta-title .cta-subtitle {
    display: block;
    font-size: var(--text-2xl);
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    margin-top: 12px;
}

.cta-desc {
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 0;
    font-size: var(--text-lg);
    line-height: 1.8;
}

.cta-right {
    flex-shrink: 0;
    text-align: right;
}

@media (max-width: 768px) {
    .cta-content {
        flex-direction: column;
        text-align: center;
    }

    .cta-right {
        text-align: center;
    }

    .cta-title {
        font-size: var(--text-4xl);
    }
}

/* ====================
   页脚样式 - QooApp二次元风格
   ==================== */

.site-footer {
    background-color: #1A1A2E;
    color: var(--color-gray-300);
    padding: var(--spacing-4xl) var(--spacing-lg) var(--spacing-2xl);
    position: relative;
}

.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-neon-purple));
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-3xl);
}

.footer-section {
    min-width: 0;
}

.footer-brand {
    position: relative;
}

.footer-brand::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: var(--radius-full);
}

.footer-logo-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: var(--spacing-xl);
}

.footer-logo-icon {
    font-size: 32px;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.footer-logo-text {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 900;
    color: var(--color-white);
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-title {
    color: var(--color-white);
    font-size: var(--text-lg);
    font-weight: 800;
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: var(--radius-full);
}

.footer-description {
    color: var(--color-gray);
    font-size: var(--text-sm);
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background-color: rgba(155, 89, 182, 0.15);
    border-radius: var(--radius-full);
    color: var(--color-gray-300);
    transition: all var(--transition-base);
    border: 1px solid rgba(155, 89, 182, 0.2);
}

.social-link:hover {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: var(--color-white);
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 8px 25px rgba(155, 89, 182, 0.5);
}

.social-icon {
    width: 24px;
    height: 24px;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: var(--spacing-md);
}

.footer-links a {
    color: var(--color-gray);
    text-decoration: none;
    font-size: var(--text-sm);
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.footer-links a::before {
    content: '→';
    color: var(--color-primary);
    opacity: 0;
    transform: translateX(-10px);
    transition: all var(--transition-base);
}

.footer-links a:hover {
    color: var(--color-primary-light);
    transform: translateX(8px);
}

.footer-links a:hover::before {
    opacity: 1;
    transform: translateX(0);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.copyright {
    color: var(--color-gray);
    font-size: var(--text-sm);
    margin-bottom: 0;
}

.footer-note {
    color: var(--color-gray);
    font-size: var(--text-sm);
    margin-bottom: 0;
}

.footer-bottom-right {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-certifications {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.cert-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--text-xs);
    padding: 8px 16px;
    background: rgba(155, 89, 182, 0.1);
    border-radius: var(--radius-full);
    border: 1px solid rgba(155, 89, 182, 0.2);
    transition: all var(--transition-base);
}

.cert-item:hover {
    background: rgba(155, 89, 182, 0.2);
    color: var(--color-primary-light);
    transform: translateY(-2px);
}

@media (max-width: 900px) {
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 640px) {
    .footer-content {
        grid-template-columns: 1fr;
    }

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

    .footer-certifications {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--spacing-md);
    }

    .cert-item {
        padding: 6px 12px;
        font-size: 10px;
    }
}

/* ====================
   下载按钮 - QooApp二次元风格
   ==================== */

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 32px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: white;
    border-radius: var(--radius-full);
    text-decoration: none;
    font-weight: 700;
    transition: all var(--transition-base);
    box-shadow: 0 8px 25px rgba(155, 89, 182, 0.45), var(--shadow-neon-purple);
    position: relative;
    overflow: hidden;
}

.download-btn::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 var(--transition-slow);
}

.download-btn:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 12px 40px rgba(155, 89, 182, 0.55), var(--shadow-neon-pink);
    color: white;
}

.download-btn:hover::before {
    left: 100%;
}

.download-btn-small {
    padding: 12px 24px;
    font-size: var(--text-sm);
}

/* ====================
   版本标签 - QooApp二次元风格
   ==================== */

.version-card {
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--color-gray-200);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

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

.version-card:hover {
    border-color: transparent;
    box-shadow: var(--shadow-xl);
    transform: translateY(-5px);
}

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

.version-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.version-card-title {
    font-size: var(--text-xl);
    font-weight: 800;
    color: var(--color-text);
}

.version-card-date {
    color: var(--color-gray);
    font-size: var(--text-sm);
}

/* ====================
   下载卡片样式 - QooApp二次元风格
   ==================== */

.download-card {
    background: var(--color-white);
    border-radius: var(--radius-3xl);
    border: 1px solid var(--color-gray-200);
    box-shadow: var(--shadow-2xl);
    overflow: hidden;
    position: relative;
}

.download-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-primary));
    background-size: 200% 100%;
    animation: border-flow 3s linear infinite;
}

.download-card-header {
    padding: var(--spacing-xl) var(--spacing-2xl);
    background: linear-gradient(135deg, rgba(155, 89, 182, 0.1), rgba(233, 30, 99, 0.06));
    border-bottom: 1px solid var(--color-gray-200);
}

.download-card-title {
    font-size: var(--text-2xl);
    font-weight: 900;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.download-card-meta {
    font-size: var(--text-sm);
    color: var(--color-text-light);
    margin-bottom: 0;
}

.download-links-section {
    padding: var(--spacing-xl) var(--spacing-2xl);
}

.download-links-title {
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-xl);
}

.download-buttons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-lg);
}

.download-card-btn {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 28px;
    background: linear-gradient(135deg, rgba(155, 89, 182, 0.1), rgba(233, 30, 99, 0.06));
    border: 2px solid rgba(155, 89, 182, 0.2);
    border-radius: var(--radius-xl);
    text-decoration: none;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.download-card-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(155, 89, 182, 0.1), transparent);
    transition: left var(--transition-slow);
}

.download-card-btn:hover {
    background: linear-gradient(135deg, rgba(155, 89, 182, 0.18), rgba(233, 30, 99, 0.12));
    border-color: var(--color-primary);
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.download-card-btn:hover::before {
    left: 100%;
}

.download-btn-icon {
    font-size: 28px;
    flex-shrink: 0;
}

.download-btn-name {
    font-weight: 800;
    color: var(--color-text);
    flex: 1;
}

.download-btn-size {
    font-size: var(--text-sm);
    color: var(--color-text-light);
    background: rgba(0, 0, 0, 0.05);
    padding: 5px 14px;
    border-radius: var(--radius-full);
}

.download-btn-arrow {
    font-size: var(--text-xl);
    color: var(--color-primary);
    transition: transform var(--transition-base);
}

.download-card-btn:hover .download-btn-arrow {
    transform: translateX(12px);
}

.download-changelog {
    padding: var(--spacing-xl) var(--spacing-2xl);
    background: var(--color-gray-50);
    border-top: 1px solid var(--color-gray-200);
}

.download-changelog-title {
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

/* ====================
   通用辅助类
   ==================== */

.text-gradient {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.mt-lg { margin-top: var(--spacing-lg) !important; }
.mb-lg { margin-bottom: var(--spacing-lg) !important; }

/* ====================
   表格样式 - QooApp二次元风格
   ==================== */

.table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    border: 1px solid var(--color-gray-200);
}

.table th,
.table td {
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: left;
    border-bottom: 1px solid var(--color-gray-100);
}

.table th {
    background: linear-gradient(135deg, rgba(155, 89, 182, 0.1), rgba(233, 30, 99, 0.06));
    color: var(--color-text);
    font-weight: 800;
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.table tbody tr:last-child td {
    border-bottom: none;
}

.table tbody tr:hover {
    background: var(--color-gray-50);
}

/* ====================
   Badge样式 - QooApp二次元风格
   ==================== */

.badge {
    display: inline-block;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-new {
    background: linear-gradient(135deg, rgba(46, 204, 113, 0.2), rgba(39, 174, 96, 0.15));
    color: #27AE60;
    border: 1px solid rgba(46, 204, 113, 0.3);
}

.badge-update {
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.2), rgba(41, 128, 185, 0.15));
    color: #2980B9;
    border: 1px solid rgba(52, 152, 219, 0.3);
}

.badge-fix {
    background: linear-gradient(135deg, rgba(231, 76, 60, 0.2), rgba(192, 57, 43, 0.15));
    color: #C0392B;
    border: 1px solid rgba(231, 76, 60, 0.3);
}

/* ====================
   游戏分类卡片 - QooApp二次元风格
   ==================== */

.game-category-card {
    padding: var(--spacing-2xl);
    background: linear-gradient(135deg, var(--color-white) 0%, var(--color-gray-50) 100%);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--color-gray-200);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    text-align: center;
}

.game-category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
}

.game-category-card.rpg::before {
    background: linear-gradient(90deg, #9B59B6, #BB8FCE);
}

.game-category-card.card-game::before {
    background: linear-gradient(90deg, #E91E63, #FF69B4);
}

.game-category-card.music::before {
    background: linear-gradient(90deg, #27AE60, #58D68D);
}

.game-category-card.strategy::before {
    background: linear-gradient(90deg, #2980B9, #5DADE2);
}

.game-category-card.action::before {
    background: linear-gradient(90deg, #D68910, #F4D03F);
}

.game-category-card.shooter::before {
    background: linear-gradient(90deg, #C0392B, #EC7063);
}

.game-category-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
    display: block;
    transition: transform var(--transition-base);
}

.game-category-card:hover {
    transform: translateY(-8px) rotate(1deg);
    box-shadow: var(--shadow-2xl);
    border-color: transparent;
}

.game-category-card:hover .game-category-icon {
    transform: scale(1.15);
}

.game-category-title {
    font-size: var(--text-xl);
    font-weight: 800;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.game-category-desc {
    font-size: var(--text-sm);
    color: var(--color-text-light);
    line-height: 1.6;
}

/* ====================
   浮动装饰元素
   ==================== */

.float-element {
    position: absolute;
    pointer-events: none;
    z-index: 0;
}

.float-circle {
    border-radius: 50%;
    background: radial-gradient(circle, rgba(155, 89, 182, 0.3) 0%, transparent 70%);
}

.float-star {
    color: var(--color-neon-yellow);
    font-size: 24px;
    opacity: 0.6;
}

/* ====================
   渐变边框动画
   ==================== */

.gradient-border-animate {
    position: relative;
}

.gradient-border-animate::before {
    content: '';
    position: absolute;
    inset: 0;
    padding: 2px;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-primary));
    background-size: 200% 100%;
    animation: border-flow 3s linear infinite;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}