/*
  1688代购系统 - 极光流光风格
  Website 51 - Aurora Flow Style
*/

:root {
    --primary: #8b5cf6;
    --primary-dark: #7c3aed;
    --secondary: #06b6d4;
    --accent: #f472b6;
    --bg-dark: #0f0a1e;
    --bg-card: rgba(255, 255, 255, 0.05);
    --bg-glass: rgba(255, 255, 255, 0.08);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --border: rgba(255, 255, 255, 0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Aurora Background */
.aurora-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    background: linear-gradient(135deg, #0f0a1e 0%, #1a1033 50%, #0d1528 100%);
}

.aurora {
    position: absolute;
    width: 200%;
    height: 200%;
    top: -50%;
    left: -50%;
    background: radial-gradient(ellipse at center, transparent 0%, transparent 70%);
    opacity: 0.4;
    animation: aurora-move 15s ease-in-out infinite;
}

.aurora-1 {
    background: radial-gradient(ellipse at 30% 20%, rgba(139, 92, 246, 0.4) 0%, transparent 50%),
                radial-gradient(ellipse at 70% 60%, rgba(139, 92, 246, 0.3) 0%, transparent 50%);
    animation-delay: 0s;
}

.aurora-2 {
    background: radial-gradient(ellipse at 60% 30%, rgba(6, 182, 212, 0.35) 0%, transparent 50%),
                radial-gradient(ellipse at 40% 70%, rgba(6, 182, 212, 0.25) 0%, transparent 50%);
    animation-delay: -5s;
}

.aurora-3 {
    background: radial-gradient(ellipse at 80% 40%, rgba(244, 114, 182, 0.3) 0%, transparent 50%),
                radial-gradient(ellipse at 20% 80%, rgba(244, 114, 182, 0.2) 0%, transparent 50%);
    animation-delay: -10s;
}

@keyframes aurora-move {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(2%, 2%) rotate(5deg); }
    50% { transform: translate(-1%, 3%) rotate(-3deg); }
    75% { transform: translate(3%, -1%) rotate(3deg); }
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.floating-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 15px 0;
    background: rgba(15, 10, 30, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: all 0.3s ease;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-icon {
    font-size: 28px;
}

.logo-text {
    font-size: 22px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 35px;
}

.main-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transition: width 0.3s ease;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--text-primary);
}

.main-nav a:hover::after,
.main-nav a.active::after {
    width: 100%;
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 28px;
    cursor: pointer;
}

/* Hero Section - Used in index.html */
.hero-section {
    min-height: 100vh;
    padding: 120px 0 80px;
    display: flex;
    align-items: center;
}

.hero-section .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

/* Page Hero Section - Used in sub-pages */
.page-hero {
    min-height: 60vh;
    padding: 140px 0 60px;
    display: flex;
    align-items: center;
    text-align: center;
}

.page-hero .container {
    max-width: 900px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 14px;
    color: var(--secondary);
    margin-bottom: 25px;
}

.hero-title {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 25px;
}

.title-line {
    display: block;
    color: var(--text-primary);
}

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

.hero-desc {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 35px;
    line-height: 1.8;
}

.hero-stats {
    display: flex;
    gap: 50px;
    margin-bottom: 35px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 36px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-suffix {
    font-size: 24px;
    font-weight: 700;
    color: var(--secondary);
}

.stat-label {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 5px;
}

.hero-actions {
    display: flex;
    gap: 20px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border: none;
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(139, 92, 246, 0.5);
}

.btn-outline {
    background: transparent;
    color: white;
    border: 1px solid var(--border);
}

.btn-outline:hover {
    background: var(--bg-glass);
    border-color: var(--primary);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    height: 500px;
}

.floating-card {
    position: absolute;
    padding: 15px 25px;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    animation: float 6s ease-in-out infinite;
    z-index: 10;
}

.card-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.card-2 {
    top: 45%;
    right: 5%;
    animation-delay: -2s;
}

.card-3 {
    bottom: 20%;
    left: 20%;
    animation-delay: -4s;
}

.card-icon {
    font-size: 24px;
}

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

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.hero-mockup {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 350px;
    height: 280px;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
}

.mockup-header {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }

.mockup-body {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mockup-row {
    height: 30px;
    background: linear-gradient(90deg, rgba(139, 92, 246, 0.3), rgba(6, 182, 212, 0.3));
    border-radius: 8px;
}

.mockup-row.short {
    width: 60%;
}

/* Section Styles */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 18px;
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 13px;
    color: var(--primary);
    margin-bottom: 20px;
}

.section-title {
    font-size: 40px;
    font-weight: 800;
    margin-bottom: 15px;
}

.section-desc {
    font-size: 18px;
    color: var(--text-secondary);
}

/* Features Section */
.features-section {
    padding: 100px 0;
    background: rgba(0, 0, 0, 0.2);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    position: relative;
    padding: 40px 30px;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 20px;
    transition: all 0.4s ease;
    overflow: hidden;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(139, 92, 246, 0.2);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 15px;
}

.feature-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.feature-decoration {
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, transparent, rgba(139, 92, 246, 0.1));
    border-radius: 0 20px 0 100px;
}

/* Process Section */
.process-section {
    padding: 100px 0;
}

.process-timeline {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 0;
}

.process-step {
    text-align: center;
    flex: 1;
    max-width: 250px;
}

.step-number {
    font-size: 48px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
}

.step-content h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
}

.step-content p {
    font-size: 14px;
    color: var(--text-secondary);
}

.process-connector {
    width: 100px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    margin-top: 35px;
    position: relative;
}

.process-connector::after {
    content: '→';
    position: absolute;
    right: -5px;
    top: -12px;
    color: var(--secondary);
    font-size: 20px;
}

/* Scenes Section */
.scenes-section {
    padding: 100px 0;
    background: rgba(0, 0, 0, 0.2);
}

.scenes-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.scene-card {
    padding: 35px 25px;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 20px;
    text-align: center;
    transition: all 0.4s ease;
}

.scene-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent);
}

.scene-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.scene-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
}

.scene-card p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Comparison Section */
.comparison-section {
    padding: 100px 0;
}

.comparison-table {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 20px;
    overflow: hidden;
}

.comparison-header,
.comparison-row {
    display: grid;
    grid-template-columns: 200px 1fr 1fr;
    align-items: center;
    padding: 20px 30px;
}

.comparison-header {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    font-weight: 700;
    font-size: 16px;
}

.comparison-row {
    border-bottom: 1px solid var(--border);
    transition: background 0.3s ease;
}

.comparison-row:hover {
    background: rgba(255, 255, 255, 0.05);
}

.comparison-row:last-child {
    border-bottom: none;
}

.col-title {
    font-weight: 600;
}

.col-traditional {
    color: var(--text-secondary);
}

.col-system.highlight {
    color: var(--secondary);
    font-weight: 600;
}

/* Testimonials Section */
.testimonials-section {
    padding: 100px 0;
    background: rgba(0, 0, 0, 0.2);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.testimonial-card {
    position: relative;
    padding: 35px;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 20px;
}

.quote-icon {
    font-size: 60px;
    line-height: 1;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.5;
}

.quote-text {
    font-size: 16px;
    line-height: 1.8;
    margin: 20px 0;
    color: var(--text-secondary);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
}

.user-name {
    display: block;
    font-weight: 600;
}

.user-title {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
}

/* Contact Section */
.contact-section {
    padding: 80px 0;
}

.contact-wrapper {
    position: relative;
    padding: 60px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(6, 182, 212, 0.2));
    border: 1px solid var(--border);
    border-radius: 30px;
    overflow: hidden;
}

.contact-info h2 {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 15px;
}

.contact-info > p {
    color: var(--text-secondary);
    margin-bottom: 35px;
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 18px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.contact-decoration {
    position: absolute;
    right: 60px;
    top: 50%;
    transform: translateY(-50%);
}

.circle {
    position: absolute;
    border-radius: 50%;
    border: 1px dashed var(--border);
}

.circle-1 {
    width: 200px;
    height: 200px;
    animation: rotate 20s linear infinite;
}

.circle-2 {
    width: 280px;
    height: 280px;
    animation: rotate 30s linear infinite reverse;
}

.circle-3 {
    width: 360px;
    height: 360px;
    animation: rotate 40s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Footer */
.footer {
    padding: 40px 0 20px;
    border-top: 1px solid var(--border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 30px;
    gap: 40px;
}

.footer-brand .logo-text {
    font-size: 24px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-brand p {
    color: var(--text-secondary);
    margin-top: 8px;
}

/* Footer Contact Info - Always Visible */
.footer-contact {
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px 25px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-width: 220px;
}

.footer-contact-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 5px;
}

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

.footer-contact-item .contact-icon {
    font-size: 16px;
    width: 24px;
    text-align: center;
}

.footer-contact-item .contact-text {
    color: var(--text-secondary);
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 20px 30px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 14px;
}

.footer-links a:hover {
    color: var(--primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 14px;
}

/* Benefits Section - Used in sub-pages */
.benefits-section {
    padding: 100px 0;
    background: rgba(0, 0, 0, 0.2);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.benefit-card {
    padding: 35px 25px;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 20px;
    text-align: center;
    transition: all 0.4s ease;
}

.benefit-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent);
}

.benefit-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.benefit-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 15px;
}

.benefit-value {
    font-size: 42px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.benefit-desc {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Page Hero Section - Used in sub-pages */
.page-hero {
    min-height: 60vh;
    padding: 140px 0 60px;
    display: flex;
    align-items: center;
    text-align: center;
}

.page-hero .container {
    max-width: 900px;
    margin: 0 auto;
}

.page-hero .hero-content {
    text-align: center;
}

.page-hero .hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(139, 92, 246, 0.2);
    border: 1px solid rgba(139, 92, 246, 0.4);
    border-radius: 30px;
    font-size: 14px;
    color: var(--accent);
    margin-bottom: 20px;
}

.page-hero .hero-title {
    font-size: 48px;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: 20px;
}

.page-hero .hero-title .title-line {
    display: block;
}

.page-hero .hero-title .title-highlight {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-hero .hero-desc {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

/* Benefits Section - Used in sub-pages */
.benefits-section {
    padding: 100px 0;
    background: rgba(0, 0, 0, 0.2);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.benefit-card {
    padding: 35px 25px;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 20px;
    text-align: center;
    transition: all 0.4s ease;
}

.benefit-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent);
}

.benefit-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.benefit-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.benefit-value {
    font-size: 42px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.benefit-desc {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Mobile Responsive */
@media (max-width: 1024px) {
    .hero-section .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-visual {
        display: none;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-actions {
        justify-content: center;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .scenes-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .process-timeline {
        flex-wrap: wrap;
    }

    .process-connector {
        display: none;
    }

    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(15, 10, 30, 0.98);
        padding: 20px;
    }

    .main-nav.active {
        display: block;
    }

    .main-nav ul {
        flex-direction: column;
        gap: 15px;
    }

    .mobile-toggle {
        display: block;
    }

    .hero-title {
        font-size: 36px;
    }

    .page-hero {
        padding: 120px 0 40px;
        min-height: 50vh;
    }

    .page-hero .hero-title {
        font-size: 32px;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: 30px;
    }

    .features-grid,
    .scenes-grid,
    .benefits-grid {
        grid-template-columns: 1fr;
    }

    .comparison-header,
    .comparison-row {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .comparison-header .col-traditional,
    .comparison-header .col-system {
        display: none;
    }

    .contact-wrapper {
        padding: 40px 25px;
    }

    .contact-decoration {
        display: none;
    }

    .footer-content {
        flex-direction: column;
        align-items: center;
        gap: 25px;
        text-align: center;
    }

    .footer-contact {
        width: 100%;
        max-width: 300px;
        min-width: auto;
    }

    .footer-contact-item {
        justify-content: center;
    }

    .floating-card {
        display: none;
    }

    .benefit-value {
        font-size: 32px;
    }
}