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

:root {
    --primary: #4F46E5;
    --primary-dark: #4338CA;
    --primary-light: #818CF8;
    --secondary: #0F172A;
    --text: #1E293B;
    --text-light: #64748B;
    --bg: #F8FAFC;
    --white: #FFFFFF;
    --border: #E2E8F0;
    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
}

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

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

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

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

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
}

.btn-block {
    width: 100%;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
    padding: 14px 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 800;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.navbar.scrolled .logo {
    color: var(--secondary);
}

.logo-icon {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, #ffffff 0%, #f0f0f0 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
}

.navbar.scrolled .logo-icon {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.nav-menu {
    display: flex;
    gap: 36px;
}

.nav-menu a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    position: relative;
    padding: 8px 0;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #667eea, #f093fb);
    transition: width 0.3s ease;
}

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

.nav-menu a:hover {
    color: white;
}

.navbar.scrolled .nav-menu a {
    color: var(--text-light);
}

.navbar.scrolled .nav-menu a:hover {
    color: var(--primary);
}

.nav-actions {
    display: flex;
    gap: 14px;
}

.nav-actions .btn-outline {
    color: white;
    border-color: rgba(255, 255, 255, 0.5);
    background: transparent;
}

.nav-actions .btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
}

.nav-actions .btn-primary {
    background: white;
    color: var(--primary);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.nav-actions .btn-primary:hover {
    background: #f8fafc;
}

.navbar.scrolled .nav-actions .btn-outline {
    color: var(--text);
    border-color: var(--border);
}

.navbar.scrolled .nav-actions .btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: transparent;
}

.navbar.scrolled .nav-actions .btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text);
    transition: all 0.3s;
}

/* 英雄区域 */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    position: relative;
    overflow: hidden;
}

.hero::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='0.05'%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;
}

/* 装饰形状 */
.hero-bg-shapes {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    pointer-events: none;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.6;
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.3);
    top: -100px;
    right: -100px;
    animation-delay: 0s;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: rgba(79, 70, 229, 0.4);
    bottom: -50px;
    left: -50px;
    animation-delay: 2s;
}

.shape-3 {
    width: 200px;
    height: 200px;
    background: rgba(236, 72, 153, 0.3);
    top: 50%;
    left: 50%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

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

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

.hero-badge {
    display: inline-block;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    color: white;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    animation: fadeInUp 0.6s ease-out;
}

.hero h1 {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.15;
    color: white;
    margin-bottom: 24px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    animation: fadeInUp 0.6s ease-out 0.1s both;
}

.hero-desc {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 36px;
    max-width: 520px;
    line-height: 1.8;
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
    animation: fadeInUp 0.6s ease-out 0.3s both;
}

.hero-actions .btn-primary {
    background: white;
    color: var(--primary);
    font-weight: 600;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.hero-actions .btn-primary:hover {
    background: #f8fafc;
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.25);
}

.hero-actions .btn-outline {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.hero-actions .btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
}

.hero-stats {
    display: flex;
    gap: 24px;
    animation: fadeInUp 0.6s ease-out 0.4s both;
}

.stat {
    display: flex;
    flex-direction: column;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-value {
    font-size: 28px;
    font-weight: 800;
    color: white;
}

.stat-label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.8);
    margin-top: 4px;
}

/* 手机模型 */
.hero-image {
    display: flex;
    justify-content: center;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.phone-mockup {
    width: 300px;
    height: 600px;
    background: linear-gradient(145deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 44px;
    padding: 12px;
    box-shadow: 0 50px 100px -20px rgba(0, 0, 0, 0.5),
                0 30px 60px -30px rgba(0, 0, 0, 0.4),
                inset 0 1px 0 rgba(255, 255, 255, 0.1);
    position: relative;
    animation: phoneFloat 4s ease-in-out infinite;
}

.phone-mockup::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 24px;
    background: #0a0a0f;
    border-radius: 12px;
    z-index: 10;
}

@keyframes phoneFloat {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(1deg); }
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    border-radius: 36px;
    padding: 50px 16px 20px;
    overflow: hidden;
    position: relative;
}

.app-header {
    text-align: center;
    color: white;
    margin-bottom: 24px;
}

.app-title {
    font-size: 22px;
    font-weight: 700;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.app-subtitle {
    font-size: 13px;
    opacity: 0.9;
    margin-top: 8px;
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 16px;
    border-radius: 20px;
    display: inline-block;
}

.app-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.app-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 16px;
    padding: 14px 12px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.app-card:hover {
    transform: scale(1.05);
}

.card-icon {
    font-size: 28px;
    margin-bottom: 6px;
}

.card-title {
    font-size: 11px;
    color: var(--text-light);
    font-weight: 500;
}

.card-value {
    font-size: 15px;
    font-weight: 700;
    color: var(--secondary);
    margin-top: 4px;
}

/* 功能特色 */
.features {
    padding: 120px 0;
    background: var(--white);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(180deg, #f8fafc 0%, transparent 100%);
    pointer-events: none;
}

.section-header {
    text-align: center;
    margin-bottom: 70px;
    position: relative;
}

.section-header h2 {
    font-size: 40px;
    font-weight: 800;
    color: var(--secondary);
    margin-bottom: 16px;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), #f093fb);
    border-radius: 2px;
}

.section-header p {
    font-size: 18px;
    color: var(--text-light);
    margin-top: 20px;
}

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

.feature-card {
    background: var(--white);
    border-radius: 20px;
    padding: 36px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), #f093fb);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(79, 70, 229, 0.15);
    border-color: transparent;
}

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

.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    transition: transform 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-icon.blue { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); color: white; }
.feature-icon.green { background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%); color: white; }
.feature-icon.orange { background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%); color: white; }
.feature-icon.purple { background: linear-gradient(135deg, #8B5CF6 0%, #D946EF 100%); color: white; }
.feature-icon.red { background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%); color: white; }
.feature-icon.cyan { background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%); color: white; }

.feature-card h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 14px;
}

.feature-card p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.8;
}

/* 价格套餐 */
.pricing {
    padding: 120px 0;
    background: linear-gradient(180deg, #f8fafc 0%, #eef2ff 100%);
    position: relative;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--white);
    border-radius: 24px;
    padding: 44px 36px;
    border: 1px solid var(--border);
    position: relative;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.12);
}

.pricing-card.popular {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    transform: scale(1.08);
    box-shadow: 0 30px 60px rgba(79, 70, 229, 0.3);
}

.pricing-card.popular:hover {
    transform: scale(1.08) translateY(-10px);
    box-shadow: 0 40px 80px rgba(79, 70, 229, 0.35);
}

.pricing-card.popular .pricing-header h3,
.pricing-card.popular .price .amount,
.pricing-card.popular .price .period,
.pricing-card.popular .pricing-features li {
    color: white;
}

.pricing-card.popular .pricing-features li.disabled {
    color: rgba(255, 255, 255, 0.6);
}

.pricing-card.popular .pricing-features .check {
    color: #38ef7d;
}

.pricing-card.popular .pricing-features .cross {
    color: rgba(255, 255, 255, 0.5);
}

.pricing-card.popular .pricing-features li {
    border-color: rgba(255, 255, 255, 0.2);
}

.popular-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(90deg, #f093fb 0%, #f5576c 100%);
    color: white;
    padding: 8px 20px;
    border-radius: 30px;
    font-size: 13px;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(240, 147, 251, 0.4);
}

.pricing-header {
    text-align: center;
    margin-bottom: 30px;
}

.pricing-header h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--secondary);
    margin-bottom: 16px;
}

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

.price .amount {
    font-size: 42px;
    font-weight: 700;
    color: var(--secondary);
}

.price .period {
    font-size: 16px;
    color: var(--text-light);
}

.pricing-features {
    list-style: none;
    margin-bottom: 30px;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    font-size: 15px;
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features .check {
    color: var(--success);
    font-weight: 600;
}

.pricing-features .cross {
    color: var(--text-light);
}

.pricing-features li.disabled {
    color: var(--text-light);
}

/* 客户评价 */
.testimonials {
    padding: 120px 0;
    background: var(--white);
    position: relative;
    overflow: hidden;
}

.testimonials::before {
    content: '"';
    position: absolute;
    top: 80px;
    left: 10%;
    font-size: 300px;
    font-family: Georgia, serif;
    color: rgba(79, 70, 229, 0.05);
    line-height: 1;
    pointer-events: none;
}

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

.testimonial-card {
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 20px;
    padding: 36px;
    border: 1px solid var(--border);
    transition: all 0.4s ease;
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 20px;
    right: 24px;
    font-size: 60px;
    font-family: Georgia, serif;
    color: rgba(79, 70, 229, 0.15);
    line-height: 1;
}

.testimonial-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
    border-color: transparent;
}

.testimonial-content p {
    font-size: 16px;
    color: var(--text);
    line-height: 1.9;
    margin-bottom: 28px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 14px;
}

.author-avatar {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
}

.author-name {
    font-size: 17px;
    font-weight: 700;
    color: var(--secondary);
}

.author-title {
    font-size: 14px;
    color: var(--text-light);
    margin-top: 2px;
}

/* 联系我们 */
.contact {
    padding: 120px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.contact::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='0.05'%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: 0.3;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
    position: relative;
    z-index: 1;
}

.contact-info h2 {
    font-size: 40px;
    font-weight: 800;
    color: white;
    margin-bottom: 16px;
}

.contact-info > p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 40px;
}

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

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.contact-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(5px);
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
}

.contact-label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
}

.contact-value {
    font-size: 16px;
    font-weight: 600;
    color: white;
}

.contact-form-wrapper {
    background: var(--white);
    border-radius: 24px;
    padding: 44px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.2);
}

.form-group {
    margin-bottom: 24px;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 16px 18px;
    border: 2px solid var(--border);
    border-radius: 14px;
    font-size: 15px;
    font-family: inherit;
    transition: all 0.3s ease;
    background: #f8fafc;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: white;
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form .btn-primary {
    padding: 18px 32px;
    font-size: 16px;
    font-weight: 600;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 14px;
    box-shadow: 0 10px 30px rgba(79, 70, 229, 0.3);
}

.contact-form .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(79, 70, 229, 0.4);
}

/* 页脚 */
.footer {
    background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
    color: white;
    padding: 80px 0 40px;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 50px;
}

.footer-brand .logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-brand p {
    font-size: 15px;
    color: #94A3B8;
    line-height: 1.9;
    max-width: 280px;
}

.footer-links h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 24px;
    position: relative;
    display: inline-block;
}

.footer-links h4::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 30px;
    height: 2px;
    background: linear-gradient(90deg, #667eea, #f093fb);
    border-radius: 1px;
}

.footer-links a {
    display: block;
    color: #94A3B8;
    text-decoration: none;
    font-size: 14px;
    padding: 8px 0;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: white;
    transform: translateX(5px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 35px;
    text-align: center;
}

.footer-bottom p {
    font-size: 14px;
    color: #64748B;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content {
        order: 1;
    }

    .hero-image {
        order: 0;
        margin-bottom: 40px;
    }

    .hero-desc {
        margin: 0 auto 32px;
    }

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

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

    .phone-mockup {
        width: 260px;
        height: 520px;
    }

    .features-grid,
    .pricing-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

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

    .pricing-card.popular:hover {
        transform: translateY(-5px);
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
    }

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

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

    .nav-toggle {
        display: flex;
    }

    .hero h1 {
        font-size: 32px;
    }

    .section-header h2 {
        font-size: 28px;
    }

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

    .footer-brand .logo {
        justify-content: center;
    }
}

/* 移动端菜单 */
.nav-menu.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: white;
    padding: 20px;
    border-bottom: 1px solid var(--border);
    gap: 16px;
}

.nav-actions.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 200px;
    left: 0;
    right: 0;
    background: white;
    padding: 20px;
    border-bottom: 1px solid var(--border);
    gap: 12px;
}

/* 滚动动画 */
.fade-in {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.fade-in-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.scale-in {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scale-in.visible {
    opacity: 1;
    transform: scale(1);
}

/* 延迟动画 */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* 脉冲动画 */
@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.pulse {
    animation: pulse 2s ease-in-out infinite;
}

/* 闪烁光效 */
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.shimmer {
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}