/* 基础样式 */
:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #06b6d4;
    --accent: #f59e0b;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --light: #f8fafc;
    --gray: #94a3b8;
    --gradient: linear-gradient(135deg, var(--primary), var(--secondary));
    --gradient-accent: linear-gradient(135deg, var(--primary), var(--accent));
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    background-color: var(--dark);
    color: var(--light);
    overflow-x: hidden;
    line-height: 1.6;
}

/* 粒子画布 */
#particleCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    background: rgba(15, 23, 42, 0.8);
}

.navbar.scrolled {
    padding: 0.75rem 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.logo-icon {
    width: 40px;
    height: 40px;
    animation: float 3s ease-in-out infinite;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    color: var(--light);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-btn {
    background: var(--gradient);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    color: white !important;
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(99, 102, 241, 0.3);
}

.nav-btn::after {
    display: none;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--light);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* 主页面英雄区 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 6rem 2rem 4rem;
    gap: 4rem;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(99, 102, 241, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.badge-icon {
    font-size: 1rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
}

.btn svg {
    width: 20px;
    height: 20px;
}

.btn-primary {
    background: var(--gradient);
    color: white;
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--light);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
}

.hero-stats {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 900;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline;
}

.stat-unit {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    color: var(--gray);
    margin-top: 0.25rem;
}

.stat-divider {
    width: 1px;
    height: 50px;
    background: linear-gradient(to bottom, transparent, var(--gray), transparent);
}

/* 英雄区视觉 */
.hero-visual {
    flex: 1;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    width: 280px;
    height: 560px;
    background: var(--dark-light);
    border-radius: 40px;
    padding: 10px;
    position: relative;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.phone-mockup::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 25px;
    background: var(--dark);
    border-radius: 15px;
    z-index: 10;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
    border-radius: 32px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.matching-animation {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.user-circle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    animation: pulse 2s infinite;
}

.user-circle.user-1 {
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
}

.user-circle.user-2 {
    background: linear-gradient(135deg, #06b6d4, #22d3d2);
}

.user-avatar {
    font-size: 2rem;
}

.user-pulse {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 2px solid currentColor;
    animation: ripple 2s infinite;
}

.user-1 .user-pulse {
    color: #6366f1;
}

.user-2 .user-pulse {
    color: #06b6d4;
}

.connection-line {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #6366f1, #06b6d4);
    position: relative;
    border-radius: 2px;
    animation: glow 2s infinite;
}

.pulse-dot {
    position: absolute;
    width: 12px;
    height: 12px;
    background: white;
    border-radius: 50%;
    top: 50%;
    transform: translateY(-50%);
    animation: moveDot 2s infinite;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.8);
}

.match-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: #10b981;
    margin-bottom: 0.5rem;
    animation: fadeInUp 0.5s ease forwards;
}

.match-info {
    font-size: 0.875rem;
    color: var(--gray);
    animation: fadeInUp 0.5s ease 0.2s forwards;
    opacity: 0;
}

.floating-cards {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.float-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 0.75rem 1.25rem;
    border-radius: 15px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: float 6s ease-in-out infinite;
}

.card-icon {
    font-size: 1.25rem;
}

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

.card-2 {
    bottom: 20%;
    right: -15%;
    animation-delay: 2s;
}

.card-3 {
    bottom: 10%;
    left: -10%;
    animation-delay: 4s;
}

/* 功能区 */
.features {
    padding: 6rem 2rem;
    background: linear-gradient(180deg, transparent 0%, rgba(99, 102, 241, 0.05) 50%, transparent 100%);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-badge {
    display: inline-block;
    background: rgba(99, 102, 241, 0.2);
    color: var(--primary);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.1);
}

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

.feature-icon {
    position: relative;
    width: 60px;
    height: 60px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    background: var(--gradient);
    opacity: 0.2;
    border-radius: 15px;
    transform: rotate(10deg);
    transition: transform 0.3s ease;
}

.feature-card:hover .icon-bg {
    transform: rotate(0deg);
}

.feature-icon span {
    font-size: 1.75rem;
    position: relative;
    z-index: 1;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--gray);
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.feature-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.875rem;
    transition: gap 0.3s ease;
}

.feature-link:hover {
    gap: 0.75rem;
}

.feature-link svg {
    width: 16px;
    height: 16px;
}

/* 使用流程 */
.how-it-works {
    padding: 6rem 2rem;
}

.steps-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.step-card {
    display: flex;
    align-items: center;
    gap: 2rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2rem;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.step-card:hover {
    border-color: rgba(99, 102, 241, 0.3);
    transform: translateX(10px);
}

.step-number {
    font-size: 3rem;
    font-weight: 900;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.step-content {
    flex: 1;
}

.step-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.step-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.step-content p {
    color: var(--gray);
    font-size: 0.9375rem;
}

.step-visual {
    flex: 1;
}

.step-connector {
    text-align: center;
    padding: 0 2rem;
}

.step-connector svg {
    width: 100%;
    height: 50px;
}

/* 打字效果演示 */
.typing-demo {
    background: var(--dark-light);
    padding: 1rem;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.typing-cursor {
    width: 2px;
    height: 1rem;
    background: var(--primary);
    animation: blink 1s infinite;
}

.typing-text {
    font-size: 0.875rem;
    color: var(--gray);
}

/* 分析演示 */
.analysis-demo {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.analysis-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.bar-label {
    font-size: 0.75rem;
    color: var(--gray);
    width: 70px;
}

.bar-fill {
    flex: 1;
    height: 8px;
    background: var(--dark-light);
    border-radius: 4px;
    position: relative;
    overflow: hidden;
}

.bar-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: var(--fill);
    background: var(--gradient);
    border-radius: 4px;
    animation: barFill 1.5s ease forwards;
}

/* 匹配演示 */
.match-demo {
    display: flex;
    justify-content: center;
}

.match-card {
    background: var(--dark-light);
    padding: 1rem;
    border-radius: 15px;
    display: flex;
    align-items: center;
    gap: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.match-avatar {
    width: 50px;
    height: 50px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.match-info {
    display: flex;
    flex-direction: column;
}

.match-name {
    font-weight: 700;
    font-size: 1rem;
}

.match-rate {
    font-size: 0.875rem;
    color: #10b981;
}

/* 用户评价 */
.testimonials {
    padding: 6rem 2rem;
    background: linear-gradient(180deg, transparent 0%, rgba(6, 182, 212, 0.05) 50%, transparent 100%);
}

.testimonials-slider {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.testimonial-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2rem;
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    border-color: rgba(6, 182, 212, 0.3);
    box-shadow: 0 20px 40px rgba(6, 182, 212, 0.1);
}

.testimonial-content {
    position: relative;
    margin-bottom: 1.5rem;
}

.quote-icon {
    font-size: 4rem;
    line-height: 1;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: absolute;
    top: -1rem;
    left: -0.5rem;
    opacity: 0.3;
}

.testimonial-content p {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--light);
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 50px;
    height: 50px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.author-info {
    flex: 1;
}

.author-name {
    display: block;
    font-weight: 700;
    font-size: 1rem;
}

.author-location {
    display: block;
    font-size: 0.875rem;
    color: var(--gray);
}

.rating {
    font-size: 0.875rem;
}

/* CTA下载区 */
.cta-section {
    padding: 6rem 2rem;
}

.cta-content {
    text-align: center;
    background: var(--gradient);
    border-radius: 30px;
    padding: 4rem 2rem;
    position: relative;
    overflow: hidden;
}

.cta-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.cta-subtitle {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: 2rem;
    position: relative;
    z-index: 1;
}

.download-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: rgba(255, 255, 255, 0.2);
    padding: 1rem 1.5rem;
    border-radius: 15px;
    text-decoration: none;
    color: white;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.download-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-3px);
}

.download-btn svg {
    width: 30px;
    height: 30px;
}

.btn-text {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.btn-subtitle {
    font-size: 0.75rem;
    opacity: 0.8;
}

.btn-title {
    font-size: 1rem;
    font-weight: 700;
}

/* 页脚 */
.footer {
    padding: 4rem 2rem 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand {
    max-width: 300px;
}

.footer-brand .logo {
    margin-bottom: 1rem;
}

.footer-desc {
    color: var(--gray);
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--gradient);
    transform: translateY(-3px);
}

.social-link svg {
    width: 20px;
    height: 20px;
    fill: var(--light);
}

.footer-links h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.footer-links a {
    display: block;
    color: var(--gray);
    text-decoration: none;
    font-size: 0.9375rem;
    margin-bottom: 0.75rem;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: var(--gray);
    font-size: 0.875rem;
}

/* 动画 */
@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-20px);
    }
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

@keyframes ripple {
    0% {
        transform: scale(1);
        opacity: 1;
    }

    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

@keyframes glow {

    0%,
    100% {
        box-shadow: 0 0 5px rgba(99, 102, 241, 0.5);
    }

    50% {
        box-shadow: 0 0 20px rgba(99, 102, 241, 0.8),
            0 0 30px rgba(6, 182, 212, 0.6);
    }
}

@keyframes moveDot {

    0%,
    100% {
        left: 0;
    }

    50% {
        left: calc(100% - 12px);
    }
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0;
    }
}

@keyframes barFill {
    from {
        width: 0;
    }
}

.animate-fade-in {
    animation: fadeInUp 0.8s ease forwards;
}

.animate-float {
    animation: float 6s ease-in-out infinite;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 8rem;
    }

    .hero-content {
        max-width: 100%;
    }

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

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

    .hero-visual {
        margin-top: 3rem;
    }

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

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

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

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

    .step-card {
        flex-direction: column;
        text-align: center;
    }

    .step-visual {
        width: 100%;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-brand {
        max-width: 100%;
    }

    .social-links {
        justify-content: center;
    }

    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
}