/* ==========================================
   Gemini Template - Modern & Clean Design
   ========================================== */

:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --light-bg: #f8f9fa;
    --white: #ffffff;
    --text-dark: #212529;
    --text-muted: #6c757d;
    --border-color: #dee2e6;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 20px rgba(0,0,0,0.12);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #f0f4f8 0%, #e8f0f7 50%, #dfe9f3 100%);
    color: #2d3748;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    position: relative;
    overflow-x: hidden;
}

/* ==========================================
   玻璃光晕背景效果
   ========================================== */

.glass-orbs-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
    pointer-events: none;
}

/* 科幻网格线 - 浅色系 */
.glass-orbs-background::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(0, 123, 255, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 123, 255, 0.06) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
}

/* 扫描线效果 - 浅色系 */
.glass-orbs-background::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(
        to bottom,
        transparent 0%,
        rgba(0, 123, 255, 0.08) 50%,
        transparent 100%
    );
    animation: scanLine 6s linear infinite;
    pointer-events: none;
}

@keyframes gridMove {
    0% {
        transform: translateY(0);
    }
    100% {
        transform: translateY(50px);
    }
}

@keyframes scanLine {
    0% {
        top: -100px;
    }
    100% {
        top: 100%;
    }
}

/* 光晕球体 */
.glass-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
    will-change: transform;
}

/* 光晕1 - 天空蓝（浅色科幻） */
.glass-orb-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, 
        rgba(59, 130, 246, 0.4) 0%, 
        rgba(59, 130, 246, 0.2) 40%, 
        transparent 70%);
    top: -150px;
    left: -150px;
    animation: float1 25s ease-in-out infinite, pulse1 8s ease-in-out infinite;
}

/* 光晕2 - 薰衣草紫 */
.glass-orb-2 {
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, 
        rgba(139, 92, 246, 0.4) 0%, 
        rgba(139, 92, 246, 0.2) 40%, 
        transparent 70%);
    top: 50%;
    right: -150px;
    animation: float2 30s ease-in-out infinite, pulse2 10s ease-in-out infinite;
}

/* 光晕3 - 薄荷绿 */
.glass-orb-3 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, 
        rgba(52, 211, 153, 0.35) 0%, 
        rgba(52, 211, 153, 0.18) 40%, 
        transparent 70%);
    bottom: 10%;
    left: 30%;
    animation: float3 28s ease-in-out infinite, pulse3 12s ease-in-out infinite;
}

/* 光晕4 - 粉色 */
.glass-orb-4 {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, 
        rgba(236, 72, 153, 0.35) 0%, 
        rgba(236, 72, 153, 0.18) 40%, 
        transparent 70%);
    top: 20%;
    left: 50%;
    animation: float4 22s ease-in-out infinite, pulse4 9s ease-in-out infinite;
}

/* 光晕5 - 青色 */
.glass-orb-5 {
    width: 380px;
    height: 380px;
    background: radial-gradient(circle, 
        rgba(34, 211, 238, 0.35) 0%, 
        rgba(34, 211, 238, 0.18) 40%, 
        transparent 70%);
    bottom: -100px;
    right: 20%;
    animation: float5 26s ease-in-out infinite, pulse5 11s ease-in-out infinite;
}

/* 漂浮动画 - 5个不同路径 */
@keyframes float1 {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(100px, -50px) scale(1.1);
    }
    50% {
        transform: translate(50px, 100px) scale(0.9);
    }
    75% {
        transform: translate(-50px, 50px) scale(1.05);
    }
}

@keyframes float2 {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(-80px, 80px) scale(1.08);
    }
    66% {
        transform: translate(60px, -60px) scale(0.92);
    }
}

@keyframes float3 {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    30% {
        transform: translate(-100px, -80px) scale(1.12);
    }
    60% {
        transform: translate(80px, 60px) scale(0.88);
    }
}

@keyframes float4 {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    40% {
        transform: translate(90px, 90px) scale(1.06);
    }
    80% {
        transform: translate(-70px, -70px) scale(0.94);
    }
}

@keyframes float5 {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    35% {
        transform: translate(-90px, 70px) scale(1.1);
    }
    70% {
        transform: translate(70px, -90px) scale(0.9);
    }
}

/* 呼吸动画 - 5个不同节奏（浅色系） */
@keyframes pulse1 {
    0%, 100% {
        opacity: 0.5;
        filter: blur(80px);
    }
    50% {
        opacity: 0.7;
        filter: blur(100px);
    }
}

@keyframes pulse2 {
    0%, 100% {
        opacity: 0.52;
        filter: blur(75px);
    }
    50% {
        opacity: 0.72;
        filter: blur(95px);
    }
}

@keyframes pulse3 {
    0%, 100% {
        opacity: 0.48;
        filter: blur(70px);
    }
    50% {
        opacity: 0.68;
        filter: blur(90px);
    }
}

@keyframes pulse4 {
    0%, 100% {
        opacity: 0.5;
        filter: blur(85px);
    }
    50% {
        opacity: 0.7;
        filter: blur(105px);
    }
}

@keyframes pulse5 {
    0%, 100% {
        opacity: 0.48;
        filter: blur(78px);
    }
    50% {
        opacity: 0.68;
        filter: blur(98px);
    }
}

/* ==========================================
   Navigation - 浅色科幻风格
   ========================================== */

.navbar {
    background: rgba(255, 255, 255, 0.85) !important;
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    box-shadow: 
        0 4px 20px rgba(59, 130, 246, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.5);
    border-bottom: 1px solid rgba(59, 130, 246, 0.2);
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.25rem;
    color: #3b82f6 !important;
}

.navbar-brand .logo-text {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-link {
    color: #64748b !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: all 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: #3b82f6 !important;
}

/* 2FA工具链接特殊样式 */
.nav-link[href*="mfa.usegemini.xyz"] {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.1) 0%, rgba(16, 185, 129, 0.1) 100%);
    border: 1px solid rgba(34, 197, 94, 0.2);
    border-radius: var(--radius-sm);
    margin: 0 0.25rem;
    transition: all 0.3s ease;
}

.nav-link[href*="mfa.usegemini.xyz"]:hover {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.2) 0%, rgba(16, 185, 129, 0.2) 100%);
    border-color: rgba(34, 197, 94, 0.4);
    color: #059669 !important;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(34, 197, 94, 0.15);
}

.nav-link[href*="mfa.usegemini.xyz"] .fas {
    color: #059669;
}

/* 导航栏搜索框 */
.navbar .search-box {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar .search-box .form-control {
    width: 200px;
    min-width: 150px;
}

.navbar .search-box .btn {
    white-space: nowrap;
    flex-shrink: 0;
}

@media (max-width: 992px) {
    .navbar .search-box {
        margin-top: 1rem;
        margin-left: 0 !important;
        width: 100%;
    }
    
    .navbar .search-box .form-control {
        flex: 1;
        width: auto;
    }
}

/* ==========================================
   Notice Banner
   ========================================== */

.notice-banner {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.08) 0%, rgba(139, 92, 246, 0.08) 100%);
    padding: 1rem 0;
    margin-bottom: 2rem;
    border-bottom: 1px solid rgba(59, 130, 246, 0.15);
}

.notice-banner .alert {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--radius-md);
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.1);
}

.notice-banner .alert h6 {
    color: #3b82f6;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.notice-content {
    color: #64748b;
    font-size: 0.9rem;
}

/* ==========================================
   Category Filters
   ========================================== */

.category-filters {
    margin: 2rem 0;
    position: relative;
    padding: 2rem;
    background: linear-gradient(135deg, 
        rgba(59, 130, 246, 0.05) 0%, 
        rgba(139, 92, 246, 0.05) 100%);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(59, 130, 246, 0.15);
}

/* 为分类筛选区域添加科幻动态背景 */
.category-filters::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(139, 92, 246, 0.06) 0%, transparent 50%);
    border-radius: var(--radius-lg);
    pointer-events: none;
    animation: backgroundShift 8s ease-in-out infinite;
}

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

.filter-btn {
    position: relative;
    z-index: 1;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 2px solid rgba(59, 130, 246, 0.3);
    border-radius: var(--radius-md);
    padding: 0.5rem 1.5rem;
    font-weight: 500;
    color: #1e40af;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    outline: none;
    overflow: hidden;
}

/* 毛玻璃光泽效果 */
.filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.4),
        transparent
    );
    transition: left 0.5s ease;
}

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

/* 悬停效果 */
.filter-btn:hover {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-color: #3b82f6;
    color: #1e40af;
    transform: translateY(-3px) scale(1.02);
    box-shadow: 
        0 8px 16px rgba(59, 130, 246, 0.2),
        0 0 20px rgba(59, 130, 246, 0.1);
}

/* 激活状态 - 浅色科幻效果 */
.filter-btn.active {
    background: linear-gradient(135deg, 
        rgba(59, 130, 246, 0.95) 0%, 
        rgba(37, 99, 235, 0.95) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-color: #3b82f6;
    color: #ffffff;
    box-shadow: 
        0 8px 24px rgba(59, 130, 246, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.3),
        0 0 30px rgba(59, 130, 246, 0.2);
    transform: translateY(-2px);
}

/* 激活状态的闪光效果 */
.filter-btn.active::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(
        circle,
        rgba(255, 255, 255, 0.3) 0%,
        transparent 70%
    );
    animation: glowPulse 2s ease-in-out infinite;
    pointer-events: none;
}

/* 点击波纹效果 */
.filter-btn:active {
    transform: translateY(-1px) scale(0.98);
    transition: all 0.1s ease;
}

/* 脉冲动画 */
@keyframes glowPulse {
    0%, 100% {
        opacity: 0.5;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.1);
    }
}

/* 涟漪效果 */
.filter-btn .ripple {
    position: absolute;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    transform: translate(-50%, -50%);
    animation: rippleAnimation 0.6s ease-out;
    pointer-events: none;
    z-index: 1;
}

.filter-btn.active .ripple {
    background: rgba(255, 255, 255, 0.8);
}

@keyframes rippleAnimation {
    0% {
        width: 20px;
        height: 20px;
        opacity: 1;
    }
    100% {
        width: 300px;
        height: 300px;
        opacity: 0;
    }
}

/* ==========================================
   Products Grid
   ========================================== */

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

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

@media (max-width: 576px) {
    .products-grid {
        gap: 0.75rem;
    }
}

/* ==========================================
   Product Card - 科幻风格
   ========================================== */

.product-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 
        0 4px 16px rgba(59, 130, 246, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.5);
    border: 1px solid rgba(59, 130, 246, 0.2);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 
        0 8px 24px rgba(59, 130, 246, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.5),
        0 0 20px rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.4);
}

.product-image {
    position: relative;
    width: 100%;
    padding-top: 75%; /* 4:3 Aspect Ratio */
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    overflow: hidden;
}

.product-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    z-index: 10;
}

.product-badge .badge {
    padding: 0.35rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
}

.badge-success {
    background: var(--success-color);
    color: var(--white);
}

.badge-warning {
    background: var(--warning-color);
    color: var(--text-dark);
}

.product-body {
    padding: 1.25rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-title {
    font-size: 1rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.75rem;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    min-height: 3em;
}

.product-price {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.product-price .price {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ec4899;
}

.discount-badge {
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    color: #ffffff;
    font-size: 0.7rem;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(251, 191, 36, 0.3);
}

.product-stock {
    color: #64748b;
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.stock-label {
    font-weight: 500;
}

.stock-count {
    color: #10b981;
    font-weight: 600;
}

/* ==========================================
   Buttons - 毛玻璃效果
   ========================================== */

.btn {
    position: relative;
    border-radius: var(--radius-md);
    padding: 0.5rem 1.5rem;
    font-weight: 500;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
    outline: none;
    overflow: hidden;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

/* 按钮光泽效果 */
.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 0.5s ease;
}

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

/* 按钮涟漪效果容器 */
.btn .ripple {
    position: absolute;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    animation: buttonRipple 0.6s ease-out;
    pointer-events: none;
}

@keyframes buttonRipple {
    0% {
        width: 20px;
        height: 20px;
        opacity: 1;
    }
    100% {
        width: 200px;
        height: 200px;
        opacity: 0;
    }
}

/* Primary 按钮 - 浅色科幻效果 */
.btn-primary {
    background: linear-gradient(135deg, 
        rgba(59, 130, 246, 0.95) 0%, 
        rgba(37, 99, 235, 0.95) 100%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: #ffffff;
    box-shadow: 
        0 4px 20px rgba(59, 130, 246, 0.25),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn-primary:hover {
    background: linear-gradient(135deg, 
        rgba(37, 99, 235, 0.98) 0%, 
        rgba(29, 78, 216, 0.98) 100%);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 
        0 6px 30px rgba(59, 130, 246, 0.35),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.btn-primary:active {
    transform: translateY(-1px) scale(0.98);
}

/* Secondary 按钮 */
.btn-secondary {
    background: rgba(108, 117, 125, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--white);
    box-shadow: 
        0 4px 12px rgba(108, 117, 125, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
    background: rgba(90, 98, 104, 0.95);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(108, 117, 125, 0.3);
}

/* Outline 按钮 - 浅色科幻边框 */
.btn-outline-primary {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 2px solid rgba(59, 130, 246, 0.5);
    color: #3b82f6;
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.1);
}

.btn-outline-primary:hover {
    background: rgba(59, 130, 246, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-color: #3b82f6;
    color: #2563eb;
    transform: translateY(-2px);
    box-shadow: 
        0 4px 12px rgba(59, 130, 246, 0.2),
        0 0 20px rgba(59, 130, 246, 0.1);
}

.btn-outline-secondary {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 2px solid rgba(139, 92, 246, 0.5);
    color: #8b5cf6;
}

.btn-outline-secondary:hover {
    background: rgba(139, 92, 246, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-color: #8b5cf6;
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.15);
}

/* Success 按钮 - 清新绿 */
.btn-success {
    background: linear-gradient(135deg, 
        rgba(16, 185, 129, 0.95) 0%, 
        rgba(5, 150, 105, 0.95) 100%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: #ffffff;
    box-shadow: 
        0 4px 12px rgba(16, 185, 129, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn-success:hover {
    background: linear-gradient(135deg, 
        rgba(5, 150, 105, 0.98) 0%, 
        rgba(4, 120, 87, 0.98) 100%);
    transform: translateY(-3px);
    box-shadow: 
        0 6px 20px rgba(16, 185, 129, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

/* Warning 按钮 */
.btn-warning {
    background: linear-gradient(135deg, 
        rgba(255, 193, 7, 0.9) 0%, 
        rgba(255, 171, 0, 0.9) 100%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--text-dark);
    box-shadow: 
        0 4px 12px rgba(255, 193, 7, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.btn-warning:hover {
    background: linear-gradient(135deg, 
        rgba(255, 171, 0, 0.95) 0%, 
        rgba(255, 193, 7, 0.95) 100%);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 193, 7, 0.3);
}

/* Danger 按钮 */
.btn-danger {
    background: linear-gradient(135deg, 
        rgba(220, 53, 69, 0.9) 0%, 
        rgba(200, 35, 51, 0.9) 100%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--white);
    box-shadow: 
        0 4px 12px rgba(220, 53, 69, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.btn-danger:hover {
    background: linear-gradient(135deg, 
        rgba(200, 35, 51, 0.95) 0%, 
        rgba(220, 53, 69, 0.95) 100%);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(220, 53, 69, 0.3);
}

/* Dark 按钮 */
.btn-dark {
    background: linear-gradient(135deg, 
        rgba(52, 58, 64, 0.9) 0%, 
        rgba(33, 37, 41, 0.9) 100%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--white);
    box-shadow: 
        0 4px 12px rgba(52, 58, 64, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.btn-dark:hover {
    background: linear-gradient(135deg, 
        rgba(33, 37, 41, 0.95) 0%, 
        rgba(52, 58, 64, 0.95) 100%);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(52, 58, 64, 0.3);
}

/* Light 按钮 */
.btn-light {
    background: rgba(248, 249, 250, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 0, 0, 0.1);
    color: var(--text-dark);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.btn-light:hover {
    background: rgba(233, 236, 239, 0.95);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

/* 按钮尺寸 */
.btn-block {
    width: 100%;
    display: block;
}

.btn-sm {
    padding: 0.375rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 0.75rem 2rem;
    font-size: 1.125rem;
}

/* 按钮禁用状态 */
.btn:disabled,
.btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.btn:disabled:hover,
.btn.disabled:hover {
    transform: none !important;
    box-shadow: none !important;
}

/* ==========================================
   Cards - 毛玻璃效果
   ========================================== */

.card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: var(--radius-lg);
    box-shadow: 
        0 4px 16px rgba(59, 130, 246, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.5);
    border: 1px solid rgba(59, 130, 246, 0.2);
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: 
        0 8px 24px rgba(59, 130, 246, 0.12),
        inset 0 1px 0 rgba(255, 255, 255, 0.5),
        0 0 20px rgba(59, 130, 246, 0.08);
    transform: translateY(-2px);
    border-color: rgba(59, 130, 246, 0.35);
}

.card-body {
    padding: 2rem;
}

/* 卡片头部 */
.card-header {
    background: rgba(248, 250, 252, 0.9);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(59, 130, 246, 0.15);
}

.card-header h5,
.card-header h6 {
    color: #1e40af;
}

/* 卡片标题 */
.card-title {
    color: #1e293b;
}

/* 卡片文本 */
.card-text,
.card-body p,
.card-body div {
    color: #475569;
}

/* 卡片中的label */
.card label {
    color: #3b82f6;
    font-weight: 500;
}

/* 卡片中的小文本 */
.card small,
.card .text-muted {
    color: #64748b !important;
}

/* ==========================================
   Footer - 浅色科幻风格
   ========================================== */

.footer {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-top: 1px solid rgba(59, 130, 246, 0.2);
    margin-top: auto;
    box-shadow: 0 -4px 20px rgba(59, 130, 246, 0.08);
}

.footer,
.footer p,
.footer .text-muted {
    color: #64748b !important;
}

.footer a {
    color: #3b82f6;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer a:hover {
    color: #2563eb;
}

/* ==========================================
   Empty State
   ========================================== */

.empty-state {
    padding: 4rem 0;
}

.empty-state img {
    max-width: 200px;
    opacity: 0.3;
}

.empty-state p {
    color: rgba(224, 224, 224, 0.6);
}

/* ==========================================
   浅色科幻风格全局文本适配
   ========================================== */

/* 标题 */
h1, h2, h3, h4, h5, h6 {
    color: #1e293b;
}

/* 主要内容区域 */
.main-content,
.main-container {
    color: #334155;
}

/* 链接 */
a {
    color: #3b82f6;
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: #2563eb;
}

/* 通用文本 */
p, span, div {
    color: #475569;
}

/* 价格文本特殊处理 */
.price,
[class*="price"] {
    color: #ec4899 !important;
}

/* 表单标签 */
.form-label,
label {
    color: #3b82f6;
    font-weight: 500;
}

/* 小文本 */
small,
.small {
    color: #64748b;
}

/* 文本灰色类 */
.text-muted {
    color: #64748b !important;
}

/* 文本次要色 */
.text-secondary {
    color: #64748b !important;
}

/* 白色背景元素 */
.bg-white {
    background: rgba(255, 255, 255, 0.95) !important;
}

.bg-light {
    background: rgba(248, 250, 252, 0.95) !important;
}

/* 导航栏切换器 */
.navbar-toggler {
    border-color: rgba(59, 130, 246, 0.3);
    background: rgba(255, 255, 255, 0.5);
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(59, 130, 246, 0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* 关闭按钮 */
.btn-close {
    opacity: 0.6;
}

.btn-close:hover {
    opacity: 1;
}

/* Jumbotron */
.jumbotron {
    background: transparent;
    color: #1e293b;
}

/* ==========================================
   网站公告模态框 - 浅色科幻风格
   ========================================== */

.announcement-modal {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 2px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--radius-lg);
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.1),
        0 0 0 1px rgba(255, 255, 255, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    animation: announcementSlideIn 0.5s ease-out;
}

@keyframes announcementSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.announcement-header {
    background: linear-gradient(135deg,
        rgba(59, 130, 246, 0.1) 0%,
        rgba(37, 99, 235, 0.1) 100%);
    border-bottom: 2px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    padding: 1.5rem;
}

.announcement-header .modal-title {
    color: #1e40af;
    font-weight: 600;
    font-size: 1.25rem;
    margin: 0;
}

.announcement-header .modal-title .fas {
    color: #3b82f6;
}

.announcement-header .btn-close {
    background: rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    width: 2rem;
    height: 2rem;
    opacity: 0.7;
    transition: all 0.3s ease;
}

.announcement-header .btn-close:hover {
    opacity: 1;
    background: rgba(239, 68, 68, 0.1);
    transform: scale(1.1);
}

.announcement-body {
    padding: 2rem;
}

.announcement-content {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

.announcement-icon {
    flex-shrink: 0;
    width: 4rem;
    height: 4rem;
    background: linear-gradient(135deg,
        rgba(59, 130, 246, 0.1) 0%,
        rgba(37, 99, 235, 0.1) 100%);
    border: 2px solid rgba(59, 130, 246, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: iconPulse 2s ease-in-out infinite;
}

@keyframes iconPulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.4);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 0 0 10px rgba(59, 130, 246, 0);
    }
}

.announcement-icon .fas {
    font-size: 1.5rem;
    color: #3b82f6;
}

.announcement-text {
    flex: 1;
}

.announcement-title {
    color: #1e40af;
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.announcement-message {
    color: #475569;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.announcement-features {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(59, 130, 246, 0.15);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

.feature-item:hover {
    background: rgba(255, 255, 255, 0.9);
    border-color: rgba(59, 130, 246, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.1);
}

.feature-item .fas {
    font-size: 1rem;
}

.feature-item span {
    font-size: 0.9rem;
    font-weight: 500;
    color: #374151;
}

.announcement-footer {
    background: rgba(248, 250, 252, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-top: 2px solid rgba(59, 130, 246, 0.1);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.announcement-footer .form-check {
    margin: 0;
}

.announcement-footer .form-check-input {
    background-color: rgba(255, 255, 255, 0.8);
    border: 2px solid rgba(59, 130, 246, 0.3);
    border-radius: var(--radius-sm);
}

.announcement-footer .form-check-input:checked {
    background-color: #3b82f6;
    border-color: #3b82f6;
}

.announcement-footer .form-check-label {
    color: #475569;
    font-size: 0.9rem;
    font-weight: 500;
}

.announcement-footer .btn {
    background: linear-gradient(135deg,
        rgba(59, 130, 246, 0.95) 0%,
        rgba(37, 99, 235, 0.95) 100%);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 2px solid #3b82f6;
    border-radius: var(--radius-md);
    color: #ffffff;
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
}

.announcement-footer .btn:hover {
    background: linear-gradient(135deg,
        rgba(37, 99, 235, 0.95) 0%,
        rgba(29, 78, 216, 0.95) 100%);
    border-color: #2563eb;
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.25);
}

.announcement-footer .btn .fas {
    color: #ffffff;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .announcement-modal {
        margin: 1rem;
    }
    
    .announcement-content {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .announcement-features {
        justify-content: center;
        gap: 1rem;
    }
    
    .announcement-footer {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .announcement-footer .form-check {
        order: 2;
    }
    
    .announcement-footer .btn {
        order: 1;
        width: 100%;
    }
}

/* ==========================================
   Nav Pills & Tabs - 浅色科幻风格
   ========================================== */

.nav-pills {
    gap: 0.5rem;
}

.nav-pills .nav-link {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 2px solid rgba(59, 130, 246, 0.25);
    border-radius: var(--radius-md);
    color: #475569 !important;
    padding: 0.5rem 1.25rem;
    transition: all 0.3s ease;
    font-weight: 500;
}

.nav-pills .nav-link:hover {
    background: rgba(255, 255, 255, 0.9);
    border-color: rgba(59, 130, 246, 0.4);
    color: #3b82f6 !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.15);
}

.nav-pills .nav-link.active {
    background: linear-gradient(135deg, 
        rgba(59, 130, 246, 0.95) 0%, 
        rgba(37, 99, 235, 0.95) 100%);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-color: #3b82f6;
    color: #ffffff !important;
    box-shadow: 
        0 4px 16px rgba(59, 130, 246, 0.25),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

/* Nav Tabs */
.nav-tabs {
    border-bottom: 2px solid rgba(59, 130, 246, 0.2);
}

.nav-tabs .nav-link {
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    color: #64748b !important;
    padding: 0.75rem 1.25rem;
    transition: all 0.3s ease;
    font-weight: 500;
}

.nav-tabs .nav-link:hover {
    background: rgba(59, 130, 246, 0.05);
    color: #3b82f6 !important;
    border-bottom-color: rgba(59, 130, 246, 0.3);
}

.nav-tabs .nav-link.active {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: #3b82f6 !important;
    border-bottom-color: #3b82f6;
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.1);
}

/* Tab Content */
.tab-content {
    padding: 1.5rem 0;
}

.tab-pane {
    animation: fadeIn 0.3s ease-in;
}

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

/* ==========================================
   Responsive Utilities
   ========================================== */

@media (max-width: 768px) {
    /* 玻璃光晕移动端优化 */
    .glass-orb-1 {
        width: 300px;
        height: 300px;
        filter: blur(50px);
    }
    
    .glass-orb-2 {
        width: 280px;
        height: 280px;
        filter: blur(45px);
    }
    
    .glass-orb-3 {
        width: 250px;
        height: 250px;
        filter: blur(40px);
    }
    
    .glass-orb-4 {
        width: 220px;
        height: 220px;
        filter: blur(40px);
        display: none; /* 移动端隐藏第4、5个光晕以提升性能 */
    }
    
    .glass-orb-5 {
        width: 240px;
        height: 240px;
        filter: blur(45px);
        display: none;
    }
    
    /* 减少移动端动画复杂度 */
    .glass-orb-1, .glass-orb-2, .glass-orb-3 {
        animation-duration: 35s !important; /* 减慢动画速度 */
    }
    
    /* 分类筛选移动端优化 */
    .category-filters {
        padding: 1rem;
        margin: 1rem 0;
    }
    
    .filter-btn {
        padding: 0.4rem 1rem;
        font-size: 0.875rem;
        margin: 0.25rem;
    }
    
    /* 减弱移动端的毛玻璃效果以提升性能 */
    .filter-btn {
        backdrop-filter: blur(5px);
        -webkit-backdrop-filter: blur(5px);
    }
    
    .filter-btn:hover {
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
    }
    
    .filter-btn.active {
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }
    
    /* 商品卡片移动端优化 */
    .product-title {
        font-size: 0.9rem;
    }
    
    .product-price .price {
        font-size: 1.25rem;
    }
    
    .product-body {
        padding: 1rem;
    }
    
    .card-body {
        padding: 1.5rem;
    }
}

/* ==========================================
   Animations
   ========================================== */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.product-card {
    animation: fadeIn 0.5s ease-out;
}

/* ==========================================
   Form Controls - 毛玻璃效果
   ========================================== */

.form-control {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--radius-md);
    border: 2px solid rgba(59, 130, 246, 0.25);
    padding: 0.5rem 1rem;
    transition: all 0.3s ease;
    color: #1e293b;
}

.form-control:hover {
    background: rgba(255, 255, 255, 0.95);
    border-color: rgba(59, 130, 246, 0.35);
}

.form-control:focus {
    background: rgba(255, 255, 255, 1);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-color: #3b82f6;
    box-shadow: 
        0 0 0 0.2rem rgba(59, 130, 246, 0.15),
        0 4px 12px rgba(59, 130, 246, 0.1);
    outline: none;
}

.form-control::placeholder {
    color: rgba(100, 116, 139, 0.5);
}

.form-control-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
}

.form-control-lg {
    padding: 0.75rem 1.25rem;
    font-size: 1.125rem;
}

/* 文本域 */
textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

/* 选择框 */
select.form-control {
    background-image: linear-gradient(45deg, transparent 50%, var(--primary-color) 50%),
                      linear-gradient(135deg, var(--primary-color) 50%, transparent 50%);
    background-position: calc(100% - 20px) calc(1em + 2px),
                         calc(100% - 15px) calc(1em + 2px);
    background-size: 5px 5px, 5px 5px;
    background-repeat: no-repeat;
    padding-right: 2.5rem;
}

/* 输入组 */
.input-group {
    position: relative;
    display: flex;
    align-items: stretch;
}

.input-group .form-control {
    flex: 1;
}

.input-group-text {
    background: rgba(248, 249, 250, 0.8);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 2px solid rgba(0, 123, 255, 0.2);
    color: var(--text-muted);
    padding: 0.5rem 1rem;
    display: flex;
    align-items: center;
}

/* 禁用状态 */
.form-control:disabled,
.form-control[readonly] {
    background: rgba(233, 236, 239, 0.6);
    opacity: 0.6;
    cursor: not-allowed;
}

/* 验证状态 */
.form-control.is-valid {
    border-color: var(--success-color);
}

.form-control.is-valid:focus {
    box-shadow: 0 0 0 0.2rem rgba(40, 167, 69, 0.15);
}

.form-control.is-invalid {
    border-color: var(--danger-color);
}

.form-control.is-invalid:focus {
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.15);
}

/* ==========================================
   Badges & Labels - 毛玻璃效果
   ========================================== */

.badge {
    padding: 0.35rem 0.65rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: inline-block;
}

.badge.bg-success,
.badge-success {
    background: linear-gradient(135deg, #10b981, #059669) !important;
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.2);
    font-weight: 600;
}

.badge.bg-warning,
.badge-warning {
    background: linear-gradient(135deg, #f59e0b, #d97706) !important;
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(245, 158, 11, 0.2);
    font-weight: 600;
}

.badge.bg-danger,
.badge-danger {
    background: rgba(220, 53, 69, 0.9) !important;
    color: var(--white);
    box-shadow: 0 2px 8px rgba(220, 53, 69, 0.2);
}

.badge.bg-primary,
.badge-primary {
    background: rgba(0, 123, 255, 0.9) !important;
    color: var(--white);
    box-shadow: 0 2px 8px rgba(0, 123, 255, 0.2);
}

.badge.bg-secondary,
.badge-secondary {
    background: rgba(108, 117, 125, 0.9) !important;
    color: var(--white);
    box-shadow: 0 2px 8px rgba(108, 117, 125, 0.2);
}

.badge.bg-info,
.badge-info {
    background: rgba(23, 162, 184, 0.9) !important;
    color: var(--white);
    box-shadow: 0 2px 8px rgba(23, 162, 184, 0.2);
}

.badge.bg-dark,
.badge-dark {
    background: rgba(52, 58, 64, 0.9) !important;
    color: var(--white);
    box-shadow: 0 2px 8px rgba(52, 58, 64, 0.2);
}

/* ==========================================
   Alerts - 毛玻璃效果
   ========================================== */

.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid;
    position: relative;
}

.alert-success {
    background: rgba(212, 237, 218, 0.9);
    border-color: rgba(40, 167, 69, 0.3);
    color: #155724;
}

.alert-info {
    background: rgba(209, 236, 241, 0.9);
    border-color: rgba(23, 162, 184, 0.3);
    color: #0c5460;
}

.alert-warning {
    background: rgba(255, 243, 205, 0.9);
    border-color: rgba(255, 193, 7, 0.3);
    color: #856404;
}

.alert-danger {
    background: rgba(248, 215, 218, 0.9);
    border-color: rgba(220, 53, 69, 0.3);
    color: #721c24;
}

.alert-dismissible .btn-close {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    padding: 0.5rem;
    background: transparent;
    border: none;
    opacity: 0.5;
    cursor: pointer;
    transition: opacity 0.3s ease;
}

.alert-dismissible .btn-close:hover {
    opacity: 1;
}