:root {
    --primary-50: #eff6ff;
    --primary-100: #dbeafe;
    --primary-200: #bfdbfe;
    --primary-300: #93c5fd;
    --primary-400: #60a5fa;
    --primary-500: #3b82f6;
    --primary-600: #2563eb;
    --primary-700: #1d4ed8;
    --primary-800: #1e40af;
    --primary-900: #1e3a8a;
    --primary-950: #172554;
    
    --secondary-50: #faf5ff;
    --secondary-100: #f3e8ff;
    --secondary-200: #e9d5ff;
    --secondary-300: #d8b4fe;
    --secondary-400: #c084fc;
    --secondary-500: #a855f7;
    --secondary-600: #9333ea;
    --secondary-700: #7e22ce;
    --secondary-800: #6b21a8;
    --secondary-900: #581c87;
    
    --accent-50: #f0fdf4;
    --accent-100: #dcfce7;
    --accent-200: #bbf7d0;
    --accent-300: #86efac;
    --accent-400: #4ade80;
    --accent-500: #22c55e;
    --accent-600: #16a34a;
    --accent-700: #15803d;
    
    --success-500: #10b981;
    --warning-500: #f59e0b;
    --danger-500: #ef4444;
    --info-500: #06b6d4;
    
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --gray-950: #020617;
    
    --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.03);
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.04), 0 1px 2px -1px rgb(0 0 0 / 0.04);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.05), 0 2px 4px -2px rgb(0 0 0 / 0.05);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.06), 0 4px 6px -4px rgb(0 0 0 / 0.05);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.06), 0 8px 10px -6px rgb(0 0 0 / 0.05);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.08);
    --shadow-glow: 0 0 40px rgb(59 130 246 / 0.15);
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 32px;
    --radius-full: 9999px;
    
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
    --font-mono: "SF Mono", Monaco, Inconsolata, "Fira Mono", "Fira Code", "Roboto Mono", monospace;
    
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    width: 100%;
    overflow-x: hidden;
}

body {
    font-family: var(--font-sans);
    line-height: var(--line-height-normal);
    color: var(--gray-800);
    background-color: var(--gray-50);
    min-height: 100vh;
    letter-spacing: -0.01em;
    width: 100%;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}

.navbar {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    box-shadow: var(--shadow-xs);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition-normal);
    border-bottom: 1px solid rgba(0, 0, 0, 0.02);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
    background: rgba(255, 255, 255, 0.99);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px var(--spacing-lg);
}

.logo {
    font-size: 22px;
    font-weight: 800;
    color: var(--primary-700);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    letter-spacing: -0.3px;
    transition: var(--transition-fast);
}

.logo:hover {
    color: var(--primary-800);
    transform: translateY(-1px);
}

.logo i {
    font-size: 24px;
    background: linear-gradient(135deg, var(--primary-500), var(--secondary-500));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    gap: 4px;
    align-items: center;
}

.nav-link {
    color: var(--gray-600);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    padding: 8px 16px;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    position: relative;
    letter-spacing: 0.2px;
}

.nav-link:hover {
    color: var(--primary-600);
    background-color: var(--primary-50);
}

.nav-link.active {
    color: var(--primary-600);
    background-color: var(--primary-50);
    font-weight: 600;
}

.btn-register {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    color: #fff !important;
    padding: 10px 22px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 14px;
    box-shadow: 0 2px 10px rgba(59, 130, 246, 0.25);
    letter-spacing: 0.2px;
    margin-left: 6px;
}

.btn-register:hover {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    box-shadow: 0 4px 18px rgba(59, 130, 246, 0.4);
    transform: translateY(-1px);
}

.btn-register:active {
    transform: translateY(0);
}

.search-box {
    position: relative;
    max-width: 400px;
    margin: 0 auto;
}
.search-box input {
    width: 100%;
    padding: 14px 20px 14px 46px;
    font-size: 14px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-full);
    background: var(--gray-50);
    color: var(--gray-800);
    transition: var(--transition-normal);
    outline: none;
    font-family: inherit;
}
.search-box input:focus {
    border-color: var(--primary-500);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}
.search-box input::placeholder {
    color: var(--gray-400);
}
.search-box::before {
    content: '\f002';
    font-family: 'Font Awesome 5 Free';
    font-weight: 500;
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
    font-size: 15px;
    pointer-events: none;
}

.nav-toggle {
    display: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--gray-600);
    padding: 6px;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.nav-toggle:hover {
    background-color: var(--gray-100);
    color: var(--primary-600);
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        border-bottom: 1px solid var(--gray-100);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .nav-link {
        width: 100%;
        text-align: center;
        padding: 12px;
    }
    
    .btn-register {
        margin-left: 0;
        margin-top: 4px;
    }
}

.hero {
    background: linear-gradient(145deg, #1e3a8a 0%, #312e81 25%, #4c1d95 50%, #7c3aed 75%, #a855f7 100%);
    background-size: 400% 400%;
    animation: gradient-flow 25s ease infinite;
    color: #fff;
    padding: 80px 0 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

@keyframes gradient-flow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.hero::before {
    content: '';
    position: absolute;
    top: -40%;
    left: -40%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(255,255,255,0.04) 0%, transparent 60%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -20%;
    right: -20%;
    width: 80%;
    height: 80%;
    background: radial-gradient(circle at center, rgba(255,255,255,0.03) 0%, transparent 50%);
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 40px;
    font-weight: 900;
    margin-bottom: 20px;
    letter-spacing: -2px;
    text-shadow: 0 4px 30px rgba(0,0,0,0.15);
}

.hero p {
    font-size: 16px;
    margin-bottom: 8px;
    opacity: 0.92;
    font-weight: 400;
    letter-spacing: 0.2px;
}

.hero p:last-of-type {
    margin-bottom: 32px;
    opacity: 0.78;
    font-size: 14px;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-normal);
    cursor: pointer;
    border: none;
    font-size: 15px;
    letter-spacing: 0.2px;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.12), transparent);
    transition: var(--transition-slow);
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    color: #fff;
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.4);
    border: 1px solid transparent;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    box-shadow: 0 6px 24px rgba(59, 130, 246, 0.5);
    transform: translateY(-2px);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 12px rgba(59, 130, 246, 0.3);
}

.btn-outline {
    background: transparent;
    color: #fff;
    border: 1.5px solid rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(8px);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-2px);
}

.btn-outline-primary {
    background: transparent;
    border: 2px solid var(--primary-500);
    color: var(--primary-600);
    padding: 8px 16px;
    font-size: 13px;
}

.btn-outline-primary:hover {
    background: var(--primary-500);
    color: #fff;
    transform: translateY(-1px);
}

.btn-outline-primary i {
    margin-right: 4px;
}

.btn-lg {
    padding: 16px 40px;
    font-size: 16px;
}

.btn-sm {
    padding: 8px 20px;
    font-size: 13px;
}

.btn-success {
    background: linear-gradient(135deg, var(--accent-500), var(--accent-600));
    color: #fff;
    box-shadow: 0 4px 16px rgba(34, 197, 94, 0.25);
}

.btn-success:hover {
    background: linear-gradient(135deg, var(--accent-600), var(--accent-700));
    box-shadow: 0 6px 24px rgba(34, 197, 94, 0.38);
    transform: translateY(-1px);
}

.btn-block {
    width: 100%;
}

@media (max-width: 768px) {
    .hero {
        padding: 90px 0 80px;
    }
    
    .hero h1 {
        font-size: 34px;
    }
    
    .hero p {
        font-size: 15px;
    }
}

.products {
    padding: 110px 0;
    background: linear-gradient(180deg, var(--gray-50) 0%, #fff 100%);
}

.section-title {
    text-align: center;
    font-size: 40px;
    font-weight: 900;
    margin-bottom: 16px;
    color: var(--gray-900);
    letter-spacing: -0.5px;
}

.section-subtitle {
    text-align: center;
    font-size: 15px;
    color: var(--gray-500);
    margin-bottom: 80px;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 32px;
}

.product-card {
    background: #fff;
    border-radius: var(--radius-xl);
    padding: 52px 40px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    border: 1px solid var(--gray-100);
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-500), var(--secondary-500));
    opacity: 0;
    transform: scaleX(0);
    transition: var(--transition-normal);
    transform-origin: left;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--primary-100);
}

.product-card:hover::before {
    opacity: 1;
    transform: scaleX(1);
}

.product-icon {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--primary-50), var(--secondary-50));
    border-radius: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 28px;
    transition: var(--transition-normal);
    position: relative;
}

.product-icon::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(135deg, var(--primary-500), var(--secondary-500));
    opacity: 0;
    transition: var(--transition-normal);
}

.product-card:hover .product-icon {
    transform: scale(1.08);
}

.product-card:hover .product-icon::before {
    opacity: 1;
}

.product-icon i {
    font-size: 44px;
    color: var(--primary-600);
    transition: var(--transition-normal);
    position: relative;
    z-index: 1;
}

.product-card:hover .product-icon i {
    color: #fff;
}

.product-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 14px;
    color: var(--gray-900);
    letter-spacing: -0.2px;
}

.product-card p {
    color: var(--gray-500);
    margin-bottom: 32px;
    font-size: 14px;
    line-height: 1.8;
}

.product-price {
    margin-bottom: 8px;
}

.product-price .price {
    font-size: 40px;
    font-weight: 900;
    color: var(--primary-600);
    letter-spacing: -1px;
}

.product-price .unit {
    color: var(--gray-400);
    font-size: 13px;
    font-weight: 500;
    margin-left: 6px;
}

.product-batch {
    color: var(--gray-400);
    font-size: 12px;
    margin-bottom: 32px;
}

.product-card .btn {
    width: 100%;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    color: #fff;
    border: none;
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.35);
}

.product-card .btn:hover {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.45);
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .products {
        padding: 70px 0;
    }
    
    .section-title {
        font-size: 30px;
    }
    
    .product-grid {
        gap: 24px;
    }
    
    .product-card {
        padding: 36px 28px;
    }
}

.features {
    background: #fff;
    padding: 70px 0;
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gray-200), transparent);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.feature-item {
    text-align: center;
    padding: 32px;
    border-radius: var(--radius-xl);
    transition: var(--transition-normal);
    position: relative;
}

.feature-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--primary-50), var(--secondary-50));
    border-radius: inherit;
    opacity: 0;
    transition: var(--transition-normal);
}

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

.feature-item i {
    font-size: 52px;
    color: var(--primary-500);
    margin-bottom: 24px;
    filter: drop-shadow(0 8px 20px rgba(59, 130, 246, 0.1));
    transition: var(--transition-normal);
    position: relative;
    z-index: 1;
}

.feature-item:hover i {
    transform: translateY(-6px);
    filter: drop-shadow(0 12px 28px rgba(59, 130, 246, 0.18));
}

.feature-item h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--gray-900);
    position: relative;
    z-index: 1;
}

.feature-item p {
    color: var(--gray-500);
    font-size: 14px;
    line-height: 1.8;
    position: relative;
    z-index: 1;
}

@media (max-width: 768px) {
    .features {
        padding: 50px 0;
    }
    
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

.process {
    padding: 70px 0;
    background: linear-gradient(180deg, #fff 0%, var(--gray-50) 100%);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 28px;
    font-size: 28px;
    font-weight: 800;
    color: #fff;
    box-shadow: 0 12px 32px rgba(59, 130, 246, 0.3);
    transition: var(--transition-normal);
    position: relative;
}

.step-number::before {
    content: '';
    position: absolute;
    inset: -6px;
    border-radius: 28px;
    background: linear-gradient(135deg, var(--primary-400), var(--primary-600));
    opacity: 0.15;
    filter: blur(10px);
    transition: var(--transition-normal);
}

.step:hover .step-number {
    transform: scale(1.14);
    box-shadow: 0 16px 44px rgba(59, 130, 246, 0.4);
}

.step:hover .step-number::before {
    opacity: 0.25;
    filter: blur(12px);
}

.step h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--gray-900);
}

.step p {
    color: var(--gray-500);
    font-size: 14px;
    line-height: 1.75;
}

@media (max-width: 768px) {
    .process {
        padding: 50px 0;
    }
    
    .process-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

.footer {
    background: var(--gray-900);
    color: #fff;
    padding: 90px 0 32px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 56px;
    margin-bottom: 56px;
}

.footer-section h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 24px;
    color: #fff;
    letter-spacing: 0.3px;
}

.footer-section p,
.footer-section li {
    color: var(--gray-400);
    margin-bottom: 14px;
    font-size: 14px;
    line-height: 1.8;
}

.footer-icp {
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-icp a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--gray-500);
    font-size: 12px;
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-icp a:hover {
    color: #fff;
}

.footer-icp i {
    color: var(--primary-400);
}

.footer-section ul {
    list-style: none;
}

.footer-section a {
    color: var(--gray-400);
    text-decoration: none;
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.footer-section a:hover {
    color: #fff;
    transform: translateX(6px);
}

.footer-section i {
    color: var(--primary-400);
}

.contact-section h4 i {
    color: var(--primary-400);
    margin-right: 8px;
}

.footer-contact-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    color: var(--gray-400);
    font-size: 14px;
    line-height: 1.6;
}

.footer-contact-item i {
    flex-shrink: 0;
    width: 18px;
    margin-top: 2px;
    color: var(--primary-400);
}

.footer-contact-item small {
    display: block;
    font-size: 12px;
    color: var(--gray-500);
    margin-top: 2px;
}

@media (max-width: 768px) {
    .footer {
        padding: 60px 0 24px;
    }
    
    .footer-content {
        gap: 40px;
        margin-bottom: 0;
    }
}

.products-page {
    padding: 90px 0;
}

.page-title {
    text-align: center;
    font-size: 40px;
    font-weight: 900;
    margin-bottom: 16px;
    color: var(--gray-900);
    letter-spacing: -0.5px;
}

.page-desc {
    text-align: center;
    color: var(--gray-500);
    margin-bottom: 64px;
    font-size: 15px;
}

.products-list {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.product-detail-card {
    background: #fff;
    border-radius: var(--radius-xl);
    padding: 48px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
    transition: var(--transition-normal);
}

.product-detail-card:hover {
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-100);
}

.product-header {
    display: flex;
    gap: 44px;
    margin-bottom: 40px;
    align-items: center;
    flex-wrap: wrap;
}

.product-icon-large {
    width: 112px;
    height: 112px;
    background: linear-gradient(135deg, var(--primary-50), var(--secondary-50));
    border-radius: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--transition-normal);
}

.product-detail-card:hover .product-icon-large {
    transform: scale(1.06);
}

.product-icon-large i {
    font-size: 52px;
    color: var(--primary-500);
}

.product-info h2 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--gray-900);
    letter-spacing: -0.3px;
}

.product-info p {
    color: var(--gray-500);
    font-size: 14px;
    line-height: 1.8;
}

.product-features {
    margin-bottom: 40px;
}

.product-features h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--gray-900);
}

.product-features ul {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 14px;
}

.product-features li {
    padding: 14px 20px;
    color: var(--gray-600);
    font-size: 14px;
    background: var(--gray-50);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: 12px;
    border: 1px solid var(--gray-100);
}

.product-features li i {
    color: var(--accent-500);
    font-size: 14px;
    flex-shrink: 0;
}

.product-pricing {
    background: linear-gradient(135deg, var(--primary-50), var(--secondary-50));
    padding: 32px;
    border-radius: var(--radius-lg);
    margin-bottom: 40px;
    border: 1px solid var(--primary-100);
}

.product-pricing h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--gray-900);
}

.pricing-options {
    display: flex;
    gap: 64px;
    flex-wrap: wrap;
}

.pricing-option {
    display: flex;
    flex-direction: column;
}

.pricing-option .label {
    color: var(--gray-500);
    margin-bottom: 8px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.pricing-option .price {
    font-size: 36px;
    font-weight: 900;
    color: var(--primary-600);
    letter-spacing: -0.5px;
}

.pricing-option .note {
    color: var(--gray-400);
    font-size: 12px;
    margin-top: 6px;
}

.product-actions {
    text-align: center;
}

@media (max-width: 768px) {
    .products-page {
        padding: 60px 0;
    }
    
    .page-title {
        font-size: 30px;
    }
    
    .product-detail-card {
        padding: 32px;
    }
    
    .product-header {
        gap: 24px;
    }
    
    .product-icon-large {
        width: 84px;
        height: 84px;
    }
    
    .product-icon-large i {
        font-size: 40px;
    }
    
    .product-info h2 {
        font-size: 24px;
    }
}

.privacy-page {
    padding: 90px 0;
}

.update-time {
    text-align: center;
    color: var(--gray-400);
    margin-bottom: 48px;
    font-size: 13px;
}

.privacy-content {
    background: #fff;
    padding: 56px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
    max-width: 960px;
    margin: 0 auto;
}

.privacy-content h2 {
    font-size: 24px;
    font-weight: 700;
    margin: 36px 0 20px;
    color: var(--gray-900);
    letter-spacing: -0.2px;
}

.privacy-content h2:first-child {
    margin-top: 0;
    font-size: 32px;
    text-align: center;
}

.privacy-content p {
    margin-bottom: 20px;
    line-height: 1.9;
    color: var(--gray-600);
    font-size: 15px;
}

.privacy-content ul {
    margin: 20px 0 20px 32px;
}

.privacy-content li {
    margin-bottom: 14px;
    line-height: 1.9;
    color: var(--gray-600);
    font-size: 15px;
}

@media (max-width: 768px) {
    .privacy-page {
        padding: 60px 0;
    }
    
    .privacy-content {
        padding: 32px;
    }
    
    .privacy-content h2 {
        font-size: 20px;
    }
    
    .privacy-content h2:first-child {
        font-size: 26px;
    }
}

.query-page {
    padding: 60px 0;
    background: linear-gradient(180deg, var(--gray-50) 0%, #fff 100%);
}

.query-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 28px;
}

.query-header .product-icon-large {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.3);
    flex-shrink: 0;
}

.query-header .product-icon-large i {
    font-size: 32px;
    color: #fff;
}

.query-header-content {
    flex: 1;
}

.query-header h1 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--gray-900);
    letter-spacing: -0.2px;
}

.query-header p {
    font-size: 14px;
    color: var(--gray-500);
    margin: 0;
    line-height: 1.6;
}

.query-type-tabs {
    display: flex;
    gap: 14px;
    margin-bottom: 28px;
}

.tab-btn {
    padding: 14px 32px;
    background: #fff;
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-600);
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow-xs);
}

.tab-btn:hover {
    border-color: var(--primary-300);
    color: var(--primary-600);
    box-shadow: var(--shadow-sm);
}

.tab-btn.active {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    border-color: var(--primary-500);
    color: #fff;
    box-shadow: 0 8px 32px rgba(59, 130, 246, 0.4);
}

.query-form-container {
    max-width: 560px;
    margin: 0 auto;
}

.payment-buttons-row {
    display: flex;
    gap: 12px;
}

.payment-buttons-row .btn {
    flex: 1;
}

.query-form {
    background: #fff;
    padding: 36px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    margin-bottom: 40px;
    border: 1px solid var(--gray-100);
    position: relative;
}

.query-form::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-400), var(--primary-600), var(--secondary-500));
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.form-group {
    margin-bottom: 28px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: var(--gray-800);
    font-size: 14px;
}

.form-control {
    width: 100%;
    padding: 14px 18px;
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-size: 14px;
    transition: var(--transition-fast);
    background: #fff;
    color: var(--gray-800);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.06);
}

.form-control.error {
    border-color: var(--danger-500);
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.06);
}

textarea.form-control {
    min-height: 180px;
    resize: vertical;
    line-height: 1.6;
}

.form-text {
    color: var(--gray-400);
    font-size: 12px;
    margin-top: 8px;
    display: block;
}

.form-error {
    color: var(--danger-500);
    font-size: 12px;
    margin-top: 8px;
    display: block;
    font-weight: 500;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    cursor: pointer;
    font-size: 12px;
    color: var(--gray-600);
    padding: 14px 0;
}

.checkbox-label input[type="checkbox"] {
    flex-shrink: 0;
    margin-top: 3px;
    width: 16px;
    height: 16px;
    border-radius: 4px;
    border: 1.5px solid var(--gray-300);
    transition: var(--transition-fast);
    appearance: none;
    background: #fff;
    position: relative;
}

.checkbox-label input[type="checkbox"]:checked {
    background: var(--primary-500);
    border-color: var(--primary-500);
}

.checkbox-label input[type="checkbox"]:checked::after {
    content: '';
    position: absolute;
    left: 4px;
    top: 0;
    width: 4px;
    height: 8px;
    border: solid #fff;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.checkbox-label a {
    color: var(--primary-600);
    text-decoration: none;
    font-weight: 500;
}

.checkbox-label a:hover {
    text-decoration: underline;
}

.test-mode-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 14px;
    background: linear-gradient(135deg, #fffbeb, #fef3c7);
    color: #92400e;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 600;
    margin-left: 14px;
    box-shadow: 0 2px 8px rgba(245, 158, 11, 0.12);
    border: 1px solid #fde68a;
}

.price-info {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 8px;
}

.price-info .price {
    font-size: 32px;
    font-weight: 900;
    color: var(--primary-600);
    letter-spacing: -0.5px;
}

.price-info .unit {
    color: var(--gray-400);
    font-size: 13px;
}

a.recharge-link,
.price-info a.recharge-link,
.query-card .price-info a.recharge-link {
    display: inline-flex !important;
    align-items: center !important;
    gap: 6px !important;
    padding: 6px 16px !important;
    background: linear-gradient(135deg, #f97316 0%, #ea580c 100%) !important;
    color: #fff !important;
    text-decoration: none !important;
    border-radius: 20px !important;
    font-size: 14px !important;
    font-weight: 600 !important;
    box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3) !important;
    transition: all 0.3s ease !important;
    animation: pulse-glow 2s ease-in-out infinite !important;
    border: none !important;
    cursor: pointer !important;
}

a.recharge-link:hover,
.price-info a.recharge-link:hover,
.query-card .price-info a.recharge-link:hover {
    background: linear-gradient(135deg, #ea580c 0%, #c2410c 100%) !important;
    box-shadow: 0 6px 20px rgba(249, 115, 22, 0.5) !important;
    transform: translateY(-2px) !important;
}

a.recharge-link:active,
.price-info a.recharge-link:active {
    transform: translateY(0) !important;
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
    }
    50% {
        box-shadow: 0 4px 20px rgba(249, 115, 22, 0.5);
    }
}

.feature-description {
    background-color: var(--primary-50);
    border-left: 4px solid var(--primary-500);
    padding: 16px 20px;
    border-radius: var(--radius-md);
    margin: 20px 0;
    font-size: 14px;
    line-height: 1.8;
    color: var(--gray-700);
}

.feature-description strong {
    color: var(--primary-700);
    font-weight: 600;
}

.query-two-column {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 32px;
    align-items: flex-start;
}

.query-left-column {
    width: 100%;
}

.query-left-column .query-form-container {
    max-width: 100%;
    margin: 0;
}

.query-left-column .query-form {
    margin-bottom: 28px;
}

.query-left-column .feature-description {
    margin-top: 0;
}

.query-right-column {
    position: sticky;
    top: 120px;
    height: fit-content;
}

.product-intro-card {
    background: #fff;
    padding: 28px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-100);
    margin-bottom: 24px;
    text-align: center;
}

.product-intro-icon {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.product-intro-icon i {
    font-size: 32px;
    color: #fff;
}

.product-intro-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.product-intro-card p {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.7;
}

.product-recommendation {
    background: #fff;
    padding: 28px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-100);
}

.product-recommendation h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.recommendation-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.recommendation-item {
    display: flex;
    align-items: center;
    padding: 16px;
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: var(--transition-normal);
    gap: 14px;
}

.recommendation-item:hover {
    background: var(--primary-50);
    transform: translateX(4px);
}

.rec-icon {
    width: 44px;
    height: 44px;
    background: var(--primary-100);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.rec-icon i {
    font-size: 18px;
    color: var(--primary-600);
}

.rec-info {
    flex: 1;
    min-width: 0;
}

.rec-name {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 4px;
}

.rec-desc {
    display: block;
    font-size: 12px;
    color: var(--gray-500);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.rec-arrow {
    font-size: 14px;
    color: var(--gray-400);
    flex-shrink: 0;
}

.recommendation-item:hover .rec-arrow {
    color: var(--primary-500);
}

.contact-card {
    background: #fff;
    padding: 28px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-100);
    margin-top: 24px;
}

.contact-card h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--gray-700);
}

.contact-item i {
    width: 28px;
    height: 28px;
    background: var(--accent-100);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--accent-600);
    flex-shrink: 0;
}

.contact-item small {
    font-size: 12px;
    color: var(--gray-400);
    margin-left: 4px;
}

@media (max-width: 1024px) {
    .query-two-column {
        grid-template-columns: 1fr !important;
        gap: 20px !important;
        width: 100% !important;
        overflow-x: hidden !important;
        display: block !important;
    }

    .query-right-column {
        position: static !important;
        width: 100% !important;
        overflow-x: hidden !important;
    }

    .query-left-column {
        width: 100% !important;
        overflow-x: hidden !important;
    }

    .container {
        padding-left: 16px !important;
        padding-right: 16px !important;
        max-width: 100% !important;
    }
}

.payment-info {
    background: #fff;
    padding: 52px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--gray-100);
}

.payment-info h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 28px;
    text-align: center;
    color: var(--gray-900);
}

.order-info {
    background: linear-gradient(135deg, var(--primary-50), var(--secondary-50));
    padding: 28px;
    border-radius: var(--radius-lg);
    margin-bottom: 28px;
    border: 1px solid var(--primary-100);
}

.order-info p {
    margin-bottom: 14px;
    font-size: 14px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.order-info p:last-child {
    margin-bottom: 0;
    padding-top: 14px;
    border-top: 1px dashed var(--primary-200);
}

.order-info .label {
    color: var(--gray-500);
    font-weight: 500;
}

.order-info .value {
    font-weight: 600;
    color: var(--gray-900);
}

.order-info .price {
    font-size: 32px;
    font-weight: 900;
    color: var(--primary-600);
    letter-spacing: -0.5px;
}

.balance-payment,
.alipay-payment,
.test-mode-payment {
    margin-bottom: 18px;
}

#resultArea {
    animation: fadeInUp 0.5s ease-out;
}

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

.result-box {
    background: #fff;
    padding: 52px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--accent-200);
    margin-bottom: 40px;
    animation: scaleIn 0.4s ease-out;
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.result-box.success {
    border-color: var(--accent-500);
    background: linear-gradient(90deg, rgba(34, 197, 94, 0.05), #fff);
    box-shadow: 0 4px 24px rgba(34, 197, 94, 0.15);
}

.result-box.error {
    border-color: var(--danger-500);
    background: linear-gradient(90deg, rgba(239, 68, 68, 0.05), #fff);
}

.result-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 28px;
    color: var(--gray-900);
    display: flex;
    align-items: center;
    gap: 12px;
}

.result-title::before {
    content: '';
    width: 4px;
    height: 24px;
    background: var(--accent-500);
    border-radius: 2px;
}

.result-item-group {
    margin-bottom: 28px;
    padding-bottom: 28px;
    border-bottom: 1px dashed var(--gray-200);
}

.result-item-group:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.result-item-group h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--primary-600);
}

.result-item {
    display: flex;
    padding: 14px 0;
}

.result-label {
    width: 120px;
    color: var(--gray-400);
    font-weight: 500;
    font-size: 13px;
    flex-shrink: 0;
}

.result-value {
    flex: 1;
    font-weight: 600;
    color: var(--gray-900);
    font-size: 13px;
    word-break: break-all;
}

.result-value.text-success {
    color: var(--accent-600);
    font-weight: 700;
}

.result-value.text-error {
    color: var(--danger-500);
    font-weight: 700;
}

.payment-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    animation: fade-in 0.2s ease;
}

@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

.payment-modal {
    background: #fff;
    padding: 56px;
    border-radius: var(--radius-xl);
    text-align: center;
    max-width: 440px;
    width: 90%;
    box-shadow: var(--shadow-2xl);
    animation: scale-in 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    border: 1px solid var(--gray-100);
}

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

.payment-modal h3 {
    margin-bottom: 24px;
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
}

.payment-modal p {
    color: var(--gray-500);
    margin-bottom: 28px;
    font-size: 14px;
}

.payment-qrcode {
    background: #fff;
    padding: 28px;
    border-radius: var(--radius-lg);
    margin-bottom: 28px;
    border: 1px solid var(--gray-100);
    box-shadow: var(--shadow-sm);
}

@media (max-width: 768px) {
    * {
        max-width: 100% !important;
        box-sizing: border-box !important;
        word-break: break-word !important;
    }

    html, body {
        width: 100% !important;
        overflow-x: hidden !important;
    }

    .query-page {
        padding: 60px 0 !important;
        width: 100% !important;
        overflow-x: hidden !important;
    }

    .container {
        max-width: 100% !important;
        padding-left: 12px !important;
        padding-right: 12px !important;
        width: 100% !important;
        overflow-x: hidden !important;
    }

    .query-header {
        flex-wrap: wrap !important;
        gap: 12px !important;
        width: 100% !important;
    }

    .query-header h1 {
        font-size: 18px !important;
        word-break: break-word !important;
    }

    .query-header .product-icon-large {
        width: 48px !important;
        height: 48px !important;
    }

    .query-header .product-icon-large i {
        font-size: 20px !important;
    }

    .query-type-tabs {
        flex-wrap: wrap !important;
        gap: 6px !important;
        width: 100% !important;
    }

    .tab-btn {
        padding: 6px 12px !important;
        font-size: 12px !important;
    }

    .query-two-column {
        grid-template-columns: 1fr !important;
        gap: 16px !important;
        width: 100% !important;
        overflow-x: hidden !important;
        display: block !important;
    }

    .query-left-column,
    .query-right-column {
        width: 100% !important;
        overflow-x: hidden !important;
        position: static !important;
    }

    .query-form-container {
        max-width: 100% !important;
        width: 100% !important;
        margin: 0 !important;
    }

    .query-form {
        padding: 16px !important;
        margin-bottom: 16px !important;
        width: 100% !important;
        overflow-x: hidden !important;
    }

    .form-group {
        margin-bottom: 16px !important;
        width: 100% !important;
    }

    .form-control {
        width: 100% !important;
        padding: 10px 12px !important;
        font-size: 14px !important;
        overflow-x: auto !important;
    }

    textarea.form-control {
        min-height: 100px !important;
    }

    .btn {
        padding: 10px 20px !important;
        font-size: 14px !important;
        width: 100% !important;
    }

    .product-intro-card {
        display: none !important;
    }

    .feature-description {
        padding: 12px !important;
        width: 100% !important;
        overflow-x: hidden !important;
    }

    .product-intro-card {
        padding: 16px !important;
        margin-bottom: 12px !important;
        width: 100% !important;
        overflow-x: hidden !important;
    }

    .product-intro-icon {
        width: 56px !important;
        height: 56px !important;
    }

    .product-intro-icon i {
        font-size: 24px !important;
    }

    .product-recommendation {
        padding: 16px !important;
        width: 100% !important;
        overflow-x: hidden !important;
    }

    .recommendation-item {
        padding: 10px 12px !important;
        margin-bottom: 6px !important;
        width: 100% !important;
        overflow-x: hidden !important;
        flex-wrap: wrap !important;
    }

    .contact-card {
        padding: 16px !important;
        margin-top: 12px !important;
        width: 100% !important;
        overflow-x: hidden !important;
    }

    .contact-item {
        font-size: 12px !important;
        flex-wrap: wrap !important;
    }

    .payment-info {
        padding: 16px !important;
        width: 100% !important;
        overflow-x: hidden !important;
    }
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
}

.data-table-wrapper {
    overflow-x: auto;
    width: 100%;
    box-sizing: border-box;
}

.data-table th,
.data-table td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--gray-100);
    font-size: 13px;
    white-space: nowrap;
}

.data-table th {
    background: linear-gradient(135deg, var(--gray-50), var(--gray-100));
    font-weight: 600;
    color: var(--gray-700);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

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

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

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 5px 14px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 600;
}

.status-badge.pending {
    background: linear-gradient(135deg, #fffbeb, #fef3c7);
    color: #92400e;
    border: 1px solid #fde68a;
}

.status-badge.pending::before {
    content: '';
    width: 5px;
    height: 5px;
    background: #f59e0b;
    border-radius: 50%;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.status-badge.paid {
    background: linear-gradient(135deg, #dcfce7, #bbf7d0);
    color: #166534;
    border: 1px solid #86efac;
}

.status-badge.paid::before {
    content: '';
    width: 5px;
    height: 5px;
    background: var(--accent-500);
    border-radius: 50%;
}

.status-badge.failed {
    background: linear-gradient(135deg, #fee2e2, #fecaca);
    color: #991b1b;
    border: 1px solid #fca5a5;
}

.status-badge.failed::before {
    content: '';
    width: 5px;
    height: 5px;
    background: var(--danger-500);
    border-radius: 50%;
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-top: 40px;
}

.pagination a,
.pagination span {
    padding: 10px 18px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--gray-600);
    font-size: 13px;
    font-weight: 500;
    transition: var(--transition-fast);
}

.pagination a:hover {
    background: var(--primary-500);
    color: #fff;
    border-color: var(--primary-500);
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.3);
}

.pagination .active {
    background: var(--primary-500);
    color: #fff;
    border-color: var(--primary-500);
}

.alert {
    padding: 16px 20px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    border: 1px solid transparent;
}

.alert-success {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.05), rgba(34, 197, 94, 0.02));
    color: #166534;
    border-color: rgba(34, 197, 94, 0.12);
}

.alert-error {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.05), rgba(239, 68, 68, 0.02));
    color: #991b1b;
    border-color: rgba(239, 68, 68, 0.12);
}

.alert-warning {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.05), rgba(245, 158, 11, 0.02));
    color: #92400e;
    border-color: rgba(245, 158, 11, 0.12);
}

.alert-info {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05), rgba(59, 130, 246, 0.02));
    color: #1e40af;
    border-color: rgba(59, 130, 246, 0.12);
}

.alert i {
    font-size: 18px;
    flex-shrink: 0;
}

.auth-page {
    min-height: calc(100vh - 280px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 50px var(--spacing-lg);
    background: linear-gradient(180deg, var(--gray-50) 0%, #fff 100%);
}

.auth-box {
    background: #fff;
    padding: 60px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 480px;
    border: 1px solid var(--gray-100);
    position: relative;
}

.auth-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-400), var(--primary-600), var(--secondary-500));
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.auth-title {
    text-align: center;
    margin-bottom: 40px;
}

.auth-title h1 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--gray-900);
    letter-spacing: -0.3px;
}

.auth-title p {
    color: var(--gray-500);
    font-size: 14px;
}

.auth-links {
    text-align: center;
    margin-top: 28px;
}

.auth-links a {
    color: var(--primary-600);
    text-decoration: none;
    font-weight: 500;
}

.auth-links a:hover {
    text-decoration: underline;
}

.auth-links p {
    margin-bottom: 12px;
    color: var(--gray-500);
    font-size: 14px;
}

@media (max-width: 768px) {
    .auth-page {
        padding: 40px var(--spacing-md);
    }
    
    .auth-box {
        padding: 40px;
    }
    
    .auth-title h1 {
        font-size: 26px;
    }
}

.user-center {
    padding: 60px 0;
}

.user-info-card {
    background: linear-gradient(135deg, #1e3a8a 0%, #312e81 50%, #4c1d95 100%);
    color: #fff;
    padding: 48px;
    border-radius: var(--radius-xl);
    margin-bottom: 36px;
    box-shadow: 0 16px 56px rgba(30, 58, 138, 0.35);
    background-size: 400% 400%;
    animation: gradient-flow 25s ease infinite;
}

.user-info-card-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
}

.user-info-card h2 {
    margin-bottom: 12px;
    font-size: 24px;
    font-weight: 700;
}

.user-info-card p {
    opacity: 0.88;
    font-size: 14px;
    margin-bottom: 8px;
}

.user-info-card .balance-section {
    text-align: center;
}

.user-info-card .balance-section p {
    opacity: 0.88;
    margin-bottom: 10px;
}

.user-info-card .balance-section .balance-value {
    font-size: 52px;
    font-weight: 900;
    letter-spacing: -1.5px;
}

.user-info-card .balance-section .btn-recharge {
    margin-top: 16px;
    background: #fff;
    color: #312e81;
}

.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--gray-200);
}

.tabs .tab-btn {
    padding: 12px 28px;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-500);
    cursor: pointer;
    transition: var(--transition-fast);
}

.tabs .tab-btn:hover {
    color: var(--primary-600);
    background: var(--primary-50);
}

.tabs .tab-btn.active {
    background: var(--primary-500);
    color: #fff;
}

.tab-content {
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
    overflow: hidden;
}

.data-table-wrapper {
    padding: 12px;
}

.batch-input-area {
    position: relative;
}

.batch-input-area .form-control {
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.6;
}

.batch-input-area .char-count {
    position: absolute;
    bottom: 12px;
    right: 14px;
    font-size: 11px;
    color: var(--gray-400);
    font-family: var(--font-mono);
}

.file-upload-area {
    border: 1.5px dashed var(--gray-300);
    border-radius: var(--radius-lg);
    padding: 48px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-normal);
    background: var(--gray-50);
}

.file-upload-area:hover {
    border-color: var(--primary-500);
    background: var(--primary-50);
}

.file-upload-area i {
    font-size: 44px;
    color: var(--gray-400);
    margin-bottom: 16px;
    transition: var(--transition-normal);
}

.file-upload-area:hover i {
    color: var(--primary-500);
    transform: scale(1.1);
}

.file-upload-area span {
    display: block;
    color: var(--gray-500);
    font-size: 14px;
    font-weight: 500;
}

.file-upload-area input[type="file"] {
    display: none;
}

.recharge-page {
    padding: 80px 0;
    background: linear-gradient(180deg, var(--gray-50) 0%, #fff 100%);
}

.recharge-box {
    background: #fff;
    padding: 56px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    max-width: 600px;
    margin: 0 auto;
    border: 1px solid var(--gray-100);
    position: relative;
}

.recharge-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-400), var(--primary-600), var(--secondary-500));
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.recharge-box h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 28px;
    font-weight: 800;
    color: var(--gray-900);
    letter-spacing: -0.3px;
}

.balance-display {
    text-align: center;
    padding: 40px;
    background: linear-gradient(135deg, #1e3a8a 0%, #312e81 50%, #4c1d95 100%);
    color: #fff;
    border-radius: var(--radius-lg);
    margin-bottom: 40px;
    box-shadow: 0 8px 32px rgba(30, 58, 138, 0.3);
    background-size: 400% 400%;
    animation: gradient-flow 25s ease infinite;
}

.balance-display h3 {
    margin-bottom: 16px;
    opacity: 0.88;
    font-size: 16px;
    font-weight: 500;
}

.balance-display .amount {
    font-size: 56px;
    font-weight: 900;
    letter-spacing: -2px;
}

.amount-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 16px;
}

.amount-option {
    background: var(--gray-50);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 20px 12px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    user-select: none;
}

.amount-option:hover {
    border-color: var(--primary-400);
    background: var(--primary-50);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.15);
}

.amount-option.active {
    border-color: var(--primary-600);
    background: var(--primary-50);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.amount-option .value {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.amount-option .label {
    font-size: 12px;
    color: var(--gray-500);
    font-weight: 500;
}

.amount-option.active .value {
    color: var(--primary-600);
}

.amount-option.active .label {
    color: var(--primary-500);
}

.auth-page {
    min-height: calc(100vh - 280px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 50px var(--spacing-lg);
    background: linear-gradient(180deg, var(--gray-50) 0%, #fff 100%);
}

.auth-box {
    background: #fff;
    padding: 60px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 480px;
    border: 1px solid var(--gray-100);
    position: relative;
}

.auth-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-400), var(--primary-600), var(--secondary-500));
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.auth-title {
    text-align: center;
    margin-bottom: 40px;
}

.auth-title h1 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--gray-900);
    letter-spacing: -0.3px;
}

.auth-title p {
    color: var(--gray-500);
    font-size: 14px;
}

.auth-links {
    text-align: center;
    margin-top: 28px;
}

.auth-links a {
    color: var(--primary-600);
    text-decoration: none;
    font-weight: 500;
}

.auth-links a:hover {
    text-decoration: underline;
}

.auth-links p {
    margin-bottom: 12px;
    color: var(--gray-500);
    font-size: 14px;
}

@media (max-width: 768px) {
    .auth-page {
        padding: 40px var(--spacing-md);
    }
    
    .auth-box {
        padding: 40px;
    }
    
    .auth-title h1 {
        font-size: 26px;
    }
}

.user-center {
    padding: 60px 0;
}

.user-info-card {
    background: linear-gradient(135deg, #1e3a8a 0%, #312e81 50%, #4c1d95 100%);
    color: #fff;
    padding: 48px;
    border-radius: var(--radius-xl);
    margin-bottom: 36px;
    box-shadow: 0 16px 56px rgba(30, 58, 138, 0.35);
    background-size: 400% 400%;
    animation: gradient-flow 25s ease infinite;
}

.user-info-card-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
}

.user-info-card h2 {
    margin-bottom: 12px;
    font-size: 24px;
    font-weight: 700;
}

.user-info-card p {
    opacity: 0.88;
    font-size: 14px;
    margin-bottom: 8px;
}

.user-info-card .balance-section {
    text-align: center;
}

.user-info-card .balance-section p {
    opacity: 0.88;
    margin-bottom: 10px;
}

.user-info-card .balance-section .balance-value {
    font-size: 52px;
    font-weight: 900;
    letter-spacing: -1.5px;
}

.user-info-card .balance-section .btn-recharge {
    margin-top: 16px;
    background: #fff;
    color: #312e81;
}

.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--gray-200);
}

.tabs .tab-btn {
    padding: 12px 28px;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-500);
    cursor: pointer;
    transition: var(--transition-fast);
}

.tabs .tab-btn:hover {
    color: var(--primary-600);
    background: var(--primary-50);
}

.tabs .tab-btn.active {
    background: var(--primary-500);
    color: #fff;
}

.tab-content {
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
    overflow: hidden;
}

.data-table-wrapper {
    padding: 12px;
}

.batch-input-area {
    position: relative;
}

.batch-input-area .form-control {
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.6;
}

.batch-input-area .char-count {
    position: absolute;
    bottom: 12px;
    right: 14px;
    font-size: 11px;
    color: var(--gray-400);
    font-family: var(--font-mono);
}

.file-upload-area {
    border: 1.5px dashed var(--gray-300);
    border-radius: var(--radius-lg);
    padding: 48px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-normal);
    background: var(--gray-50);
}

.file-upload-area:hover {
    border-color: var(--primary-500);
    background: var(--primary-50);
}

.file-upload-area i {
    font-size: 44px;
    color: var(--gray-400);
    margin-bottom: 16px;
    transition: var(--transition-normal);
}

.file-upload-area:hover i {
    color: var(--primary-500);
    transform: scale(1.1);
}

.file-upload-area span {
    display: block;
    color: var(--gray-500);
    font-size: 14px;
    font-weight: 500;
}

.file-upload-area input[type="file"] {
    display: none;
}
.input-group {
    display: flex;
    gap: 12px;
    align-items: stretch;
}

.input-group .form-control {
    flex: 1;
    border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.input-group .btn-secondary {
    flex-shrink: 0;
    padding: 14px 24px;
    background: linear-gradient(135deg, var(--gray-500), var(--gray-600));
    color: #fff;
    border: none;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.input-group .btn-secondary:hover {
    background: linear-gradient(135deg, var(--gray-600), var(--gray-700));
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.input-group .btn-secondary:active {
    transform: translateY(0);
}

.input-group .btn-secondary:disabled {
    background: var(--gray-300);
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
    opacity: 0.7;
}

.captcha-img {
    flex-shrink: 0;
    width: 120px;
    height: 44px;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    cursor: pointer;
    border: none;
    background: #fff;
}

@media (max-width: 768px) {
    .input-group {
        flex-direction: column;
        gap: 12px;
    }
    
    .input-group .form-control {
        border-radius: var(--radius-md);
    }
    
    .input-group .btn-secondary {
        border-radius: var(--radius-md);
        width: 100%;
    }
}

.auth-tabs {
    display: flex;
    gap: 12px;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 2px solid var(--gray-100);
}

.auth-tab-btn {
    flex: 1;
    padding: 14px 20px;
    background: transparent;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-500);
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.auth-tab-btn:hover {
    color: var(--primary-600);
    background: var(--primary-50);
}

.auth-tab-btn.active {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    color: #fff;
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.3);
}

.auth-tab-btn.active i {
    opacity: 1;
}

.auth-tab-btn i {
    font-size: 16px;
    opacity: 0.7;
}

.auth-form {
    animation: fade-in 0.3s ease;
}

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

@media (max-width: 768px) {
    .auth-tabs {
        gap: 8px;
        margin-bottom: 24px;
        padding-bottom: 16px;
    }
    
    .auth-tab-btn {
        padding: 10px 12px;
        font-size: 12px;
        gap: 6px;
    }
    
    .auth-tab-btn i {
        font-size: 14px;
    }
}

.user-center-layout {
    display: flex;
    gap: 32px;
}

.user-sidebar {
    width: 240px;
    flex-shrink: 0;
    background: #fff;
    border-radius: var(--radius-xl);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
}

.sidebar-user-info {
    display: flex;
    align-items: center;
    gap: 16px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--gray-100);
    margin-bottom: 20px;
}

.sidebar-avatar {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-500), var(--secondary-500));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 28px;
}

.sidebar-user-detail h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.sidebar-points {
    font-size: 14px;
    color: var(--primary-600);
    font-weight: 600;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sidebar-nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    color: var(--gray-600);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition-fast);
}

.sidebar-nav-item:hover {
    background: var(--gray-50);
    color: var(--gray-900);
}

.sidebar-nav-item.active {
    background: var(--primary-50);
    color: var(--primary-600);
    font-weight: 600;
}

.sidebar-nav-item i {
    width: 20px;
    font-size: 16px;
}

.user-main-content {
    flex: 1;
    min-width: 0;
}

@media (max-width: 992px) {
    .user-center-layout {
        flex-direction: column;
    }
    
    .user-sidebar {
        width: 100%;
    }
    
    .sidebar-nav {
        flex-direction: row;
        flex-wrap: wrap;
    }
    
    .sidebar-nav-item {
        padding: 8px 16px;
        font-size: 13px;
    }
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 4px;
}

.pagination-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 12px;
    border-radius: var(--radius-md);
    background: #fff;
    border: 1px solid var(--gray-200);
    color: var(--gray-600);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition-fast);
}

.pagination-btn:hover {
    background: var(--primary-50);
    border-color: var(--primary-300);
    color: var(--primary-600);
}

.pagination-btn.active {
    background: var(--primary-500);
    border-color: var(--primary-500);
    color: #fff;
}

.results-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
    margin-bottom: 24px;
}

.results-table th {
    background: linear-gradient(135deg, var(--gray-50), var(--gray-100));
    padding: 14px 16px;
    text-align: left;
    font-size: 12px;
    font-weight: 600;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--gray-200);
    white-space: nowrap;
}

.results-table td {
    padding: 14px 16px;
    font-size: 13px;
    color: var(--gray-700);
    border-bottom: 1px solid var(--gray-100);
    white-space: nowrap;
}

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

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

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 600;
}

.status-badge.success {
    background: linear-gradient(135deg, #dcfce7, #bbf7d0);
    color: #166534;
    border: 1px solid #86efac;
}

.status-badge.error {
    background: linear-gradient(135deg, #fee2e2, #fecaca);
    color: #991b1b;
    border: 1px solid #fca5a5;
}

.status-badge.warning {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    color: #92400e;
    border: 1px solid #fcd34d;
}

.status-badge.primary {
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    color: #1e40af;
    border: 1px solid #93c5fd;
}

.status-badge.success::before,
.status-badge.error::before,
.status-badge.warning::before,
.status-badge.primary::before {
    content: '';
    width: 5px;
    height: 5px;
    border-radius: 50%;
}

.status-badge.success::before { background: var(--accent-500); }
.status-badge.error::before { background: var(--danger-500); }
.status-badge.warning::before { background: var(--warning-500); }
.status-badge.primary::before { background: var(--primary-500); }

.export-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.export-btn:hover {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
    transform: translateY(-2px);
}

.result-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--gray-200);
}

.result-section {
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px dashed var(--gray-200);
}

.result-section:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.section-header {
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-600);
    margin-bottom: 12px;
    padding: 8px 12px;
    background: var(--primary-50);
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.section-header i {
    color: var(--primary-500);
}

.result-value.text-success { color: var(--accent-600); font-weight: 700; }
.result-value.text-error { color: var(--danger-500); font-weight: 700; }
.result-value.text-warning { color: var(--warning-500); font-weight: 700; }
.result-value.text-primary { color: var(--primary-600); font-weight: 600; }

@media (max-width: 768px) {
    .result-header-row {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }
    
    .results-table {
        display: block;
        overflow-x: auto;
    }
    
    .result-item {
        flex-direction: column;
        gap: 4px;
    }
    
    .result-label {
        width: auto;
    }
}