/* 基础样式 - 性能优化 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

    /* 性能优化 - 减少重绘和回流 */
    *,
    *::before,
    *::after {
        box-sizing: border-box;
    }

/* 优化字体渲染 */
html {
    font-size: 14px;
    position: relative;
    min-height: 100%;
    font-display: swap;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
/* 临时隐藏，后续完善功能后再显示 */
.temp-hidden {
    display: none;
}
/* 减少布局抖动 */
img, video {
    max-width: 100%;
    height: auto;
    display: block;
}

/* 预加载关键资源 */
.preload {
    content-visibility: auto;
    contain-intrinsic-size: 200px;
}

@media (min-width: 768px) {
    html {
        font-size: 16px;
    }
}

body {
    margin-bottom: 0;
    font-family: 'Rajdhani', 'Microsoft YaHei', sans-serif;
    background: linear-gradient(135deg, #0c0c0c 0%, #1a1a1a 100%);
    color: #ffffff;
    line-height: 1.6;
}

.inputfont {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", "Liberation Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
}

header__, .container, footer {
    /* 性能优化 */
    will-change: auto;
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
    /*overflow-x: hidden;*/
}
/* 科技风格主题色彩 */
:root {
    --primary-color: #00d4ff;
    --secondary-color: #ff6b35;
    --accent-color: #00ff88;
    --dark-bg: #0c0c0c;
    --card-bg: #1a1a1a;
    --border-color: #333;
    --text-light: #b0b0b0;
    --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
    --gradient-secondary: linear-gradient(135deg, #ff6b35 0%, #cc5529 100%);
    --tech-shadow: 0 8px 32px rgba(0, 212, 255, 0.3);
}

/* 科技风格字体 */
.tech-text {
    font-family: 'Orbitron', monospace;
    font-weight: 600;
    letter-spacing: 1px;
}

.brand-text {
    font-family: 'Orbitron', monospace;
    font-weight: 700;
    font-size: 1.2rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 导航栏样式 */
.tech-navbar {
    background: rgba(12, 12, 12, 0.95) !important;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
    position: relative;
    z-index: 1000;
}

    .tech-navbar .navbar-brand {
        font-size: 1.5rem;
        transition: all 0.3s ease;
    }

        .tech-navbar .navbar-brand:hover {
            transform: scale(1.05);
        }

    .tech-navbar .nav-link {
        color: #ffffff !important;
        font-weight: 500;
        transition: all 0.3s ease;
        position: relative;
        padding: 0.5rem 1rem !important;
    }

        .tech-navbar .nav-link:hover {
            color: var(--primary-color) !important;
            transform: translateY(-2px);
        }

        .tech-navbar .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 2px;
            background: var(--gradient-primary);
            transition: all 0.3s ease;
            transform: translateX(-50%);
        }

        .tech-navbar .nav-link:hover::after {
            width: 80%;
        }

/* 下拉菜单样式 */
.tech-dropdown {
    background: rgba(26, 26, 26, 0.95) !important;
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color) !important;
    box-shadow: var(--tech-shadow);
    z-index: 9999 !important;
}

    .tech-dropdown .dropdown-item {
        color: #ffffff !important;
        transition: all 0.3s ease;
        border-radius: 4px;
        margin: 2px 4px;
    }

        .tech-dropdown .dropdown-item:hover {
            background: var(--gradient-primary) !important;
            color: #000000 !important;
            transform: translateX(5px);
        }

        .tech-dropdown .dropdown-item.active {
            background: var(--gradient-primary) !important;
            color: #000000 !important;
        }

/* 按钮样式 */
.btn-primary {
    background: var(--gradient-primary);
    border: none;
    color: #000000;
    font-weight: 600;
    padding: 0.75rem 2rem;
    border-radius: 25px;
    transition: all 0.3s ease;
    box-shadow: var(--tech-shadow);
}

    .btn-primary:hover {
        transform: translateY(-3px);
        box-shadow: 0 12px 40px rgba(0, 212, 255, 0.4);
        background: var(--gradient-primary);
        border: none;
    }

.btn-secondary {
    background: var(--gradient-secondary);
    border: none;
    color: #ffffff;
    font-weight: 600;
    padding: 0.75rem 2rem;
    border-radius: 25px;
    transition: all 0.3s ease;
}

    .btn-secondary:hover {
        transform: translateY(-3px);
        box-shadow: 0 12px 40px rgba(255, 107, 53, 0.4);
    }

.btn-outline-primary {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    background: transparent;
    font-weight: 600;
    padding: 0.75rem 2rem;
    border-radius: 25px;
    transition: all 0.3s ease;
}

    .btn-outline-primary:hover {
        background: var(--primary-color);
        color: #000000;
        transform: translateY(-3px);
        box-shadow: var(--tech-shadow);
    }

/* 卡片样式 */
.tech-card {
    background: rgba(26, 26, 26, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 2rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

    .tech-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.1), transparent);
        transition: left 0.5s ease;
        pointer-events: none;
    }

    .tech-card:hover {
        transform: translateY(-10px);
        box-shadow: var(--tech-shadow);
        border-color: var(--primary-color);
    }

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

/* 表单样式 */
.form-control {
    background: rgba(26, 26, 26, 0.8);
    border: 1px solid var(--border-color);
    color: #ffffff;
    border-radius: 10px;
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
}

    .form-control:focus {
        background: rgba(26, 26, 26, 0.9);
        border-color: var(--primary-color);
        box-shadow: 0 0 0 0.2rem rgba(0, 212, 255, 0.25);
        color: #ffffff;
    }

    .form-control::placeholder {
        color: var(--text-light);
    }

/* 页脚样式 */
.tech-footer {
    background: var(--dark-bg) !important;
    border-top: 1px solid var(--border-color);
}

    .tech-footer .social-links a {
        font-size: 1.5rem;
        transition: all 0.3s ease;
    }

        .tech-footer .social-links a:hover {
            color: var(--primary-color) !important;
            transform: translateY(-3px);
        }

/* 动画效果 */
@keyframes glow {
    0% {
        box-shadow: 0 0 5px var(--primary-color);
    }

    50% {
        box-shadow: 0 0 20px var(--primary-color), 0 0 30px var(--primary-color);
    }

    100% {
        box-shadow: 0 0 5px var(--primary-color);
    }
}

.glow-effect {
    animation: glow 2s infinite;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .tech-card {
        padding: 1.5rem;
        margin-bottom: 1rem;
    }

    .brand-text {
        font-size: 1rem;
    }

    .btn-primary, .btn-secondary, .btn-outline-primary {
        padding: 0.5rem 1.5rem;
        font-size: 0.9rem;
    }
}

/* 加载动画 */
.loading-spinner {
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* 焦点样式 */
.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
    box-shadow: 0 0 0 0.2rem rgba(0, 212, 255, 0.25);
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--dark-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

    ::-webkit-scrollbar-thumb:hover {
        background: #0099cc;
    }

/* 首页特有样式 */
/* 英雄区域 */
.hero-section {
    background: linear-gradient(135deg, #0c0c0c 0%, #1a1a1a 50%, #0c0c0c 100%);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

    .hero-section::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23333" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
        opacity: 0.3;
    }

.hero-title {
    font-family: 'Orbitron', monospace;
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 2rem;
    position: relative;
    z-index: 2;
}

.tech-gradient {
    background: linear-gradient(135deg, #00d4ff 0%, #00ff88 50%, #ff6b35 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradient-shift 3s ease-in-out infinite;
}

@keyframes gradient-shift {
    0%, 100% {
        filter: hue-rotate(0deg);
    }

    50% {
        filter: hue-rotate(30deg);
    }
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-light);
    line-height: 1.8;
    position: relative;
    z-index: 2;
}

.hero-buttons {
    position: relative;
    z-index: 2;
    margin-bottom: 3rem;
}

    .hero-buttons .btn {
        font-size: 1.1rem;
        padding: 1rem 2.5rem;
        margin: 0.5rem;
    }

/* 统计数据样式 */
.stat-item {
    text-align: center;
    padding: 1rem;
    position: relative;
    z-index: 2;
}

.stat-number {
    font-family: 'Orbitron', monospace;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
}

.stat-label {
    color: var(--text-light);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* 平台卡片样式 */
.platform-card {
    display: block;
    text-decoration: none;
    color: inherit;
}

    .platform-card .tech-card {
        transition: all 0.4s ease;
        border: 2px solid transparent;
    }

    .platform-card:hover .tech-card {
        transform: translateY(-15px) scale(1.05);
        border-color: var(--primary-color);
        box-shadow: 0 20px 40px rgba(0, 212, 255, 0.3);
    }

    .platform-card .fab {
        transition: all 0.3s ease;
    }

    .platform-card:hover .fab {
        transform: scale(1.2) rotate(5deg);
    }

/* 功能特色样式 */
.feature-card {
    padding: 2rem;
    height: 100%;
    transition: all 0.3s ease;
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(0, 150, 255, 0.3));
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.2);
}

    .feature-icon i {
        font-size: 2.5rem;
        color: #ffffff;
        text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    }

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(10deg);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.4);
}

/* 价格方案样式 */
.pricing-card {
    background: rgba(26, 26, 26, 0.8);
    border: 2px solid var(--border-color);
    border-radius: 20px;
    padding: 2rem;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

    .pricing-card.recommended {
        border-color: var(--primary-color);
        box-shadow: 0 0 30px rgba(0, 212, 255, 0.3);
        transform: scale(1.05);
    }

    .pricing-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    }

    .pricing-card.recommended:hover {
        transform: translateY(-10px) scale(1.05);
    }

.recommended-badge {
    position: absolute;
    top: -1px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: #000000;
    padding: 0.5rem 1.5rem;
    border-radius: 0 0 15px 15px;
    font-weight: 600;
    font-size: 0.9rem;
}

.pricing-header {
    margin-bottom: 2rem;
}

.plan-name {
    font-family: 'Orbitron', monospace;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.plan-price {
    margin-bottom: 1rem;
    width: 118%;
    margin-left: -9%;
}

    .plan-price .currency {
        font-size: 1.2rem;
        color: var(--text-light);
    }

    .plan-price .price {
        font-family: 'Orbitron', monospace;
        font-size: 3rem;
        font-weight: 700;
        color: var(--primary-color);
    }

    .plan-price .period {
        font-size: 1rem;
        color: var(--text-light);
    }

.plan-description {
    color: var(--text-light);
    font-size: 0.95rem;
}

.pricing-features {
    flex-grow: 1;
    margin-bottom: 2rem;
}

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

    .feature-list li {
        padding: 0.5rem 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        font-size: 0.95rem;
    }

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

.pricing-footer {
    margin-top: auto;
}

/* 用户评价样式 */
.testimonial-card {
    background: rgba(26, 26, 26, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 2rem;
    height: 100%;
    transition: all 0.3s ease;
}

    .testimonial-card:hover {
        transform: translateY(-5px);
        border-color: var(--primary-color);
        box-shadow: 0 10px 30px rgba(0, 212, 255, 0.2);
    }

.stars {
    font-size: 1.2rem;
}

.testimonial-text {
    font-style: italic;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
}

    .testimonial-author strong {
        color: #ffffff;
        margin-bottom: 0.25rem;
    }

    .testimonial-author .text-muted {
        font-size: 0.9rem;
    }

/* CTA区域样式 */
.cta-section {
    background: linear-gradient(135deg, #1a1a1a 0%, #0c0c0c 100%);
    position: relative;
}

    .cta-section::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: radial-gradient(circle at center, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
    }

.cta-buttons {
    position: relative;
    z-index: 2;
}

    .cta-buttons .btn {
        font-size: 1.1rem;
        padding: 1rem 2.5rem;
        margin: 0.5rem;
    }

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .stat-number {
        font-size: 2rem;
    }

    .plan-price .price {
        font-size: 2.5rem;
    }

    .pricing-card.recommended {
        transform: none;
    }

        .pricing-card.recommended:hover {
            transform: translateY(-10px);
        }

    .feature-icon {
        width: 60px;
        height: 60px;
    }

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

@media (max-width: 576px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-buttons .btn {
        display: block;
        width: 100%;
        margin: 0.5rem 0;
    }

    .cta-buttons .btn {
        display: block;
        width: 100%;
        margin: 0.5rem 0;
    }
}

.font-arraw {
    font-family: monospace;
}

.privacy .card-body {
    color: #6c757d;
}

.policy-container h1:first-child{
    margin-top:28px;
    margin-bottom:22px;
}