/*
 * 算力云 - 跨境电商线路页面专用样式 (优化版本)
 * Crossborder E-commerce Page Styles (Optimized)
 * Version: 2.0 - 移除重复和冲突代码
 */

/* ==================
   CSS变量定义
   ================== */
:root {
    /* 间距系统 */
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* 字体系统 */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-5xl: 3rem;

    /* 字重 */
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* 圆角 */
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-full: 9999px;

    /* 颜色系统 */
    --color-white: #ffffff;
    --color-primary: #2f54eb;
    --color-primary-400: #5b7ff7;
    --color-primary-500: #2f54eb;
    --color-primary-600: #2563eb;
    --color-primary-700: #1e3a8a;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-text-secondary: #6b7280;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;

    /* 动画时长 */
    --duration-base: 0.3s;
    --duration-slow: 0.5s;
    --duration-slower: 0.8s;

    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* ==================
   产品区域样式
   ================== */
.section-products {
    padding: var(--space-20) 0;
    background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-white) 100%);
}

.section-products-header {
    text-align: center;
    margin-bottom: var(--space-16);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-products-title {
    font-size: var(--font-size-5xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary-600);
    margin-bottom: var(--space-6);
    background: linear-gradient(135deg, var(--color-primary-600), var(--color-primary-500));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-products-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.view-all-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-primary-500);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: all var(--duration-base);
    margin-top: var(--space-6);
}

.view-all-link:hover {
    color: var(--color-primary-600);
    transform: translateX(4px);
}

/* ==================
   套餐网格布局
   ================== */
.plan-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
    max-width: 100%;
    margin: 0;
    padding: 0;
}

/* ==================
   套餐卡片样式
   ================== */
.plan-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1), 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: all var(--duration-slow);
    position: relative;
    border: 2px solid rgba(47, 84, 235, 0.1);
    backdrop-filter: blur(10px);
    contain: layout style paint;
}

.plan-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, var(--color-primary-500), var(--color-primary-400), var(--color-success), var(--color-primary-500));
    background-size: 300% 100%;
    animation: gradient-shimmer 4s ease-in-out infinite;
    opacity: 0;
    transition: opacity var(--duration-base);
}

.plan-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(47, 84, 235, 0.05) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--duration-slow);
    pointer-events: none;
}

.plan-card:hover {
    transform: translateY(-20px) scale(1.02);
    box-shadow: 0 25px 80px rgba(47, 84, 235, 0.25), 0 10px 30px rgba(0, 0, 0, 0.1);
    border-color: var(--color-primary-300);
}

.plan-card:hover::before,
.plan-card:hover::after {
    opacity: 1;
}

/* 特色套餐 */
.plan-card.featured {
    transform: scale(1.05);
    border-color: var(--color-primary-500);
    box-shadow: 0 15px 50px rgba(47, 84, 235, 0.3), 0 5px 15px rgba(0, 0, 0, 0.1);
    background: linear-gradient(135deg, #ffffff 0%, #f0f4ff 100%);
}

.plan-card.featured::before {
    opacity: 1;
    height: 8px;
}

.plan-card.featured:hover {
    transform: scale(1.08) translateY(-20px);
    box-shadow: 0 30px 100px rgba(47, 84, 235, 0.4), 0 15px 40px rgba(0, 0, 0, 0.15);
}

/* 套餐标签 */
.plan-badge {
    position: absolute;
    top: 24px;
    right: -32px;
    background: linear-gradient(135deg, var(--color-primary-500), #8b5cf6);
    color: var(--color-white);
    padding: var(--space-2) var(--space-8);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    transform: rotate(45deg);
    box-shadow: 0 6px 20px rgba(47, 84, 235, 0.4);
    z-index: 10;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* 套餐信息区域 */
.plan-info {
    padding: var(--space-10) var(--space-8) var(--space-8);
    position: relative;
    z-index: 2;
}

.plan-name {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    background: linear-gradient(135deg, var(--color-primary-600), var(--color-primary-500));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-6);
    position: relative;
    text-align: center;
}

.plan-name::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary-500), var(--color-primary-400));
    border-radius: var(--radius-full);
}

/* 套餐特性 */
.plan-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-bottom: var(--space-8);
}

.plan-feature {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    padding: var(--space-3);
    border-radius: var(--radius-lg);
    transition: all var(--duration-base);
}

.plan-feature:hover {
    background: rgba(47, 84, 235, 0.05);
    color: var(--color-primary-600);
    transform: translateX(4px);
}

.plan-icon {
    color: var(--color-primary-500);
    font-size: var(--font-size-lg);
    flex-shrink: 0;
    transition: all var(--duration-base);
}

.plan-feature:hover .plan-icon {
    color: var(--color-primary-600);
    transform: scale(1.1);
}

/* 特殊特性样式 */
.plan-feature.bonus {
    background: linear-gradient(135deg, rgba(47, 84, 235, 0.15), rgba(91, 127, 247, 0.08));
    border: 1px solid rgba(47, 84, 235, 0.2);
}

.plan-feature.bonus .plan-icon {
    color: var(--color-primary-600);
}

/* 套餐操作区域 */
.plan-action {
    padding: var(--space-5) var(--space-6) var(--space-8);
    background: linear-gradient(135deg, var(--color-gray-50) 0%, #e2e8f0 100%);
    border-top: 1px solid rgba(47, 84, 235, 0.1);
    position: relative;
    z-index: 2;
}

.plan-pricing {
    margin-bottom: var(--space-6);
    text-align: center;
}

/* 价格卡片 */
.price-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    border: 1px solid rgba(47, 84, 235, 0.1);
    transition: all var(--duration-base);
}

.price-card:hover {
    border-color: var(--color-primary-300);
    box-shadow: var(--shadow-md);
}

.price-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-4);
}

.price-period {
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary-600);
}

.price-badge {
    background: linear-gradient(135deg, var(--color-success), var(--color-primary-500));
    color: var(--color-white);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
}

.price-content {
    text-align: center;
}

.price-value {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary-600);
    margin-bottom: var(--space-2);
}

.price-value.price-original {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    text-decoration: line-through;
    opacity: 0.8;
    margin-bottom: var(--space-1);
}

.price-value.price-main {
    font-size: var(--font-size-3xl);
    color: var(--color-primary-600);
    margin-bottom: var(--space-2);
}

.price-unit {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
}

.price-desc {
    margin-top: var(--space-2);
}

.price-highlight {
    color: var(--color-success);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
}

/* 套餐按钮 */
.plan-btn {
    display: block;
    width: calc(100% - 4px);
    padding: var(--space-3) var(--space-6);
    background: linear-gradient(135deg, var(--color-primary-500), #8b5cf6);
    color: var(--color-white);
    text-align: center;
    border-radius: var(--radius-full);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    transition: all var(--duration-slow);
    position: relative;
    overflow: hidden;
    border: 2px solid transparent;
    font-size: var(--font-size-base);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    box-shadow: 0 4px 15px rgba(47, 84, 235, 0.3);
    will-change: transform, box-shadow;
    margin: 0 auto;
    box-sizing: border-box;
}

.plan-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left var(--duration-slower) ease;
    z-index: 0;
}

.plan-btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, rgba(255,255,255,0.2) 0%, transparent 70%);
    transition: all 0.6s ease;
    transform: translate(-50%, -50%);
    z-index: 0;
}

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

.plan-btn:hover::after {
    width: 300px;
    height: 300px;
}

.plan-btn:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 12px 35px rgba(47, 84, 235, 0.4), 0 0 0 2px rgba(255, 255, 255, 0.3);
    background: linear-gradient(135deg, #2563eb, #7c3aed);
}

.plan-btn:active {
    transform: translateY(-2px) scale(1.01);
}

/* ==================
   特色优势区域
   ================== */
.features-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
    margin-top: var(--space-12);
}

.advantage-card {
    background: var(--color-white);
    border: 2px solid var(--color-gray-100);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    text-align: center;
    transition: all var(--duration-slow);
    position: relative;
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary-500), var(--color-primary-400));
    transform: scaleX(0);
    transition: transform var(--duration-slow);
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary-300);
}

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

.advantage-icon-wrapper {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(47, 84, 235, 0.1), rgba(47, 84, 235, 0.05));
    border-radius: var(--radius-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-6);
    transition: all var(--duration-slow);
}

.advantage-card:hover .advantage-icon-wrapper {
    transform: scale(1.1);
    background: linear-gradient(135deg, rgba(47, 84, 235, 0.15), rgba(47, 84, 235, 0.08));
}

.advantage-icon-wrapper i {
    font-size: 2rem;
    color: var(--color-primary-500);
}

/* ==================
   CTA区域
   ================== */
.cta-section {
    padding: var(--space-24) 0;
    background: linear-gradient(135deg, var(--color-primary-500), var(--color-primary-400));
    color: var(--color-white);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
}

.cta-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    position: relative;
    z-index: 2;
}

.cta-title {
    font-size: var(--font-size-5xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-6);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.cta-subtitle {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-10);
    opacity: 0.9;
    line-height: 1.6;
}

.cta-actions {
    display: flex;
    gap: var(--space-6);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--space-10);
}

/* CTA按钮样式 */
.cta-actions .btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-8);
    border-radius: var(--radius-full);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    transition: all var(--duration-slow);
    position: relative;
    overflow: hidden;
    border: 2px solid transparent;
    min-width: 160px;
    justify-content: center;
}

.cta-actions .btn-premium {
    background: linear-gradient(135deg, #ffffff, #f8fafc);
    color: var(--color-primary-600);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.3), 0 4px 10px rgba(0, 0, 0, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.cta-actions .btn-premium::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 var(--duration-slower) ease;
}

.cta-actions .btn-premium:hover::before {
    left: 100%;
}

.cta-actions .btn-premium:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 12px 35px rgba(255, 255, 255, 0.4), 0 6px 20px rgba(0, 0, 0, 0.15);
    background: linear-gradient(135deg, #ffffff, #ffffff);
    border-color: rgba(255, 255, 255, 0.8);
}

.cta-actions .btn-outline {
    background: transparent;
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
}

.cta-actions .btn-outline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    border-radius: inherit;
    opacity: 0;
    transition: opacity var(--duration-base);
}

.cta-actions .btn-outline:hover::before {
    opacity: 1;
}

.cta-actions .btn-outline:hover {
    transform: translateY(-3px) scale(1.05);
    border-color: #ffffff;
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.2);
}

.cta-actions .btn i {
    font-size: var(--font-size-xl);
    transition: transform var(--duration-base);
}

.cta-actions .btn:hover i {
    transform: scale(1.1) rotate(5deg);
}

.cta-benefits {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-6);
    margin-top: var(--space-12);
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    transition: all var(--duration-base);
}

.benefit-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.benefit-icon {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* ==================
   动画定义
   ================== */
@keyframes gradient-shimmer {
    0%, 100% { background-position: 0% 50%; }
    25% { background-position: 100% 0%; }
    50% { background-position: 100% 50%; }
    75% { background-position: 0% 100%; }
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-30px) rotate(180deg); }
}

/* ==================
   响应式设计
   ================== */
@media (max-width: 1200px) {
    .plan-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-6);
    }

    .features-grid-3 {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-6);
    }

    .plan-btn {
        width: calc(100% - 4px);
        font-size: var(--font-size-sm);
    }
}

@media (max-width: 768px) {
    :root {
        --space-10: 2rem;
        --space-12: 2.5rem;
        --space-16: 3rem;
        --space-20: 3.5rem;
        --space-24: 4rem;
    }

    .plan-grid {
        grid-template-columns: 1fr;
        gap: var(--space-4);
        padding: 0 var(--space-4);
    }

    .plan-btn {
        width: calc(100% - 8px);
        font-size: var(--font-size-sm);
    }

    .plan-card.featured {
        transform: scale(1);
    }

    .plan-card.featured:hover {
        transform: translateY(-8px);
    }

    .plan-features {
        gap: var(--space-2);
    }

    .plan-name {
        font-size: var(--font-size-2xl);
    }

    .plan-info {
        padding: var(--space-6) var(--space-4) var(--space-4);
    }

    .features-grid-3 {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }

    .cta-actions {
        flex-direction: column;
        align-items: center;
        gap: var(--space-4);
    }

    .cta-actions .btn {
        width: 100%;
        max-width: 280px;
        min-width: auto;
    }

    .cta-benefits {
        grid-template-columns: 1fr;
    }

    .section-products-title {
        font-size: var(--font-size-3xl);
    }

    .section-products-subtitle {
        font-size: var(--font-size-lg);
    }

    .cta-title {
        font-size: var(--font-size-3xl);
    }

    .cta-subtitle {
        font-size: var(--font-size-lg);
    }
}

@media (max-width: 480px) {
    .plan-action {
        padding: var(--space-4) var(--space-4) var(--space-6);
    }

    .advantage-card {
        padding: var(--space-6);
    }

    .advantage-icon-wrapper {
        width: 60px;
        height: 60px;
    }

    .advantage-icon-wrapper i {
        font-size: 1.5rem;
    }
}

/* ==================
   打印样式
   ================== */
@media print {
    .plan-card,
    .advantage-card,
    .cta-section {
        box-shadow: none !important;
        border: 1px solid #ddd !important;
        background: #fff !important;
    }

    .plan-card::before,
    .plan-card::after,
    .cta-section::before {
        display: none !important;
    }

    .plan-btn,
    .view-all-link {
        display: none !important;
    }
}