/* ===== 全局样式 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #4CAF50;
    --secondary-color: #66BB6A;
    --accent-color: #81C784;
    --dark-green: #2E7D32;
    --light-green: #A5D6A7;
    --text-dark: #1B5E20;
    --text-light: #558B2F;
    --bg-light: #F1F8E9;
    --white: #FFFFFF;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

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

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

.section-padding {
    padding: 80px 0;
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: 0 2px 30px rgba(0, 0, 0, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-brand i {
    font-size: 28px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    transition: var(--transition);
}

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

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

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

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    transition: var(--transition);
}

/* ===== Hero 区域 ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #2E7D32 0%, #4CAF50 50%, #66BB6A 100%);
    overflow: hidden;
    padding-top: 70px;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.hero .container {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    color: var(--white);
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
}

.gradient-text {
    background: linear-gradient(135deg, #FDD835, #FFB300);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(253, 216, 53, 0.3);
}

.hero-subtitle {
    font-size: 24px;
    margin-bottom: 20px;
    opacity: 0.9;
}

.hero-description {
    font-size: 18px;
    line-height: 1.8;
    opacity: 0.8;
    margin-bottom: 40px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 60px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    backdrop-filter: blur(10px);
}

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

.btn-lg {
    padding: 16px 40px;
    font-size: 18px;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

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

.stat-number {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 14px;
    opacity: 0.8;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    position: relative;
    width: 300px;
    height: 600px;
    background: linear-gradient(135deg, #2E7D32, #388E3C);
    border-radius: 40px;
    padding: 15px;
    box-shadow: 0 30px 80px rgba(46, 125, 50, 0.5);
}

.phone-screen {
    width: 100%;
    height: 100%;
    border-radius: 30px;
    overflow: hidden;
    background: linear-gradient(to bottom, #66BB6A, #E8F5E9);
}

.phone-screen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 称重界面样式 */
.scale-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, #66BB6A 0%, #E8F5E9 30%, #FFFFFF 100%);
    padding: 20px;
    display: flex;
    flex-direction: column;
}

.scale-header {
    text-align: center;
    color: white;
    font-size: 20px;
    font-weight: 600;
    padding: 15px 0;
    margin-bottom: 20px;
}

.scale-display {
    background: white;
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
}

.scale-label {
    color: #666;
    font-size: 14px;
    margin-bottom: 10px;
}

.scale-weight {
    font-size: 56px;
    font-weight: 700;
    color: #333;
    line-height: 1;
}

.scale-weight span {
    font-size: 28px;
    color: #4CAF50;
    margin-left: 5px;
}

.scale-settings {
    background: white;
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.setting-label {
    color: #333;
    font-size: 14px;
    margin-bottom: 12px;
    font-weight: 600;
}

.setting-buttons {
    display: flex;
    gap: 10px;
}

.setting-btn {
    flex: 1;
    padding: 12px;
    border: none;
    border-radius: 10px;
    background: #f5f5f5;
    color: #666;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.setting-btn.active {
    background: #4CAF50;
    color: white;
}

.scale-net {
    flex: 1;
    background: linear-gradient(135deg, #4CAF50, #66BB6A);
    border-radius: 20px;
    padding: 30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    box-shadow: 0 10px 30px rgba(76, 175, 80, 0.3);
}

.net-label {
    color: white;
    font-size: 16px;
    margin-bottom: 15px;
    opacity: 0.9;
}

.net-weight {
    font-size: 52px;
    font-weight: 700;
    color: white;
    line-height: 1;
}

.net-weight span {
    font-size: 24px;
    margin-left: 5px;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator span {
    display: block;
    width: 24px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 12px;
    position: relative;
}

.scroll-indicator span::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 2px;
    animation: scroll 2s infinite;
}

/* ===== 功能特性 ===== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 15px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(76, 175, 80, 0.3);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    color: var(--white);
}

.feature-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--text-dark);
}

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

/* ===== 肥料产品 ===== */
.products {
    background: linear-gradient(to bottom, #F1F8E9 0%, #ffffff 50%, #E8F5E9 100%);
}

.brand-logo {
    text-align: center;
    margin-bottom: 30px;
}

.brand-logo img {
    max-width: 300px;
    height: auto;
}

.certifications {
    text-align: center;
    margin: 40px 0;
}

.certifications img {
    max-width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* 生产工艺流程 */
.process-section {
    background: var(--white);
    padding: 50px;
    border-radius: 20px;
    margin: 60px 0;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
}

.process-title {
    font-size: 32px;
    text-align: center;
    color: var(--text-dark);
    margin-bottom: 40px;
    font-weight: 700;
}

.process-grid {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 60px;
}

.process-step {
    flex: 1;
    min-width: 150px;
    text-align: center;
    padding: 25px 15px;
    background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%);
    border-radius: 15px;
    transition: var(--transition);
}

.process-step:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(76, 175, 80, 0.2);
}

.process-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 15px;
    background: linear-gradient(135deg, #66bb6a, #4caf50);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: white;
}

.process-step h4 {
    font-size: 16px;
    color: var(--text-dark);
    margin-bottom: 8px;
    font-weight: 600;
}

.process-step p {
    font-size: 12px;
    color: var(--text-light);
    font-style: italic;
}

.process-arrow {
    font-size: 28px;
    color: #66bb6a;
    font-weight: bold;
}

/* 鱼乳液对比 */
.process-vs {
    margin-top: 50px;
    padding-top: 50px;
    border-top: 3px dashed #e0e0e0;
}

.process-vs h3 {
    font-size: 28px;
    text-align: center;
    color: #757575;
    margin-bottom: 30px;
}

.emulsions-grid {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.emulsion-step {
    flex: 1;
    min-width: 150px;
    text-align: center;
    padding: 25px 15px;
    background: linear-gradient(135deg, #fff3e0 0%, #ffe0b2 100%);
    border-radius: 15px;
    opacity: 0.8;
}

.emulsion-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 15px;
    background: linear-gradient(135deg, #ff9800, #f57c00);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: white;
}

.emulsion-step h4 {
    font-size: 15px;
    color: #757575;
    margin-bottom: 8px;
    font-weight: 600;
}

.emulsion-step p {
    font-size: 11px;
    color: #9e9e9e;
    font-style: italic;
}

/* Drammatic ONE 产品展示 */
.product-one-section {
    margin: 60px 0;
}

.product-one-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: start;
    background: var(--white);
    padding: 50px;
    border-radius: 25px;
    box-shadow: 0 15px 50px rgba(76, 175, 80, 0.15);
}

.product-one-left {
    position: sticky;
    top: 100px;
}

.product-one-image {
    background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%);
    padding: 50px;
    border-radius: 20px;
    text-align: center;
}

.product-one-image img {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 15px 30px rgba(0, 0, 0, 0.2));
}

.product-one-right {
    position: relative;
}

.product-badge-large {
    position: absolute;
    top: -20px;
    right: 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 12px 30px;
    border-radius: 25px;
    font-size: 16px;
    font-weight: 700;
    box-shadow: 0 5px 20px rgba(76, 175, 80, 0.3);
}

.product-one-right h2 {
    font-size: 42px;
    color: var(--text-dark);
    margin-bottom: 15px;
    font-weight: 800;
}

.product-npk-large {
    display: inline-block;
    background: linear-gradient(135deg, #66bb6a, #4caf50);
    color: var(--white);
    padding: 10px 25px;
    border-radius: 20px;
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 25px;
}

.product-intro {
    font-size: 18px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 35px;
}

.product-features-large {
    background: #f7fafc;
    padding: 30px;
    border-radius: 15px;
    margin-bottom: 35px;
}

.product-features-large h3 {
    font-size: 24px;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.product-features-large ul {
    list-style: none;
}

.product-features-large li {
    padding: 12px 0;
    color: var(--text-dark);
    font-size: 16px;
    display: flex;
    align-items: start;
    gap: 15px;
    line-height: 1.6;
}

.product-features-large i {
    color: #66bb6a;
    font-size: 20px;
    margin-top: 3px;
}

.product-usage-large {
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.05), rgba(102, 187, 106, 0.05));
    padding: 30px;
    border-radius: 15px;
    margin-bottom: 35px;
}

.product-usage-large h3 {
    font-size: 24px;
    color: var(--text-dark);
    margin-bottom: 25px;
}

.usage-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-bottom: 20px;
}

.usage-item {
    background: var(--white);
    padding: 25px;
    border-radius: 12px;
}

.usage-item h4 {
    font-size: 18px;
    color: var(--text-dark);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.usage-item h4 i {
    color: var(--primary-color);
}

.usage-item p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 8px;
}

.usage-note {
    background: #fff9e6;
    padding: 15px 20px;
    border-radius: 10px;
    border-left: 4px solid #ffc107;
    display: flex;
    align-items: start;
    gap: 15px;
}

.usage-note i {
    color: #ffc107;
    font-size: 20px;
    margin-top: 2px;
}

.usage-note span {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* 用户评价 */
.testimonials {
    margin-top: 60px;
    padding: 50px;
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.05), rgba(102, 187, 106, 0.05));
    border-radius: 20px;
}

.testimonials h3 {
    font-size: 28px;
    text-align: center;
    margin-bottom: 40px;
    color: var(--text-dark);
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background: var(--white);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(76, 175, 80, 0.15);
}

.testimonial-stars {
    color: #ffc107;
    font-size: 20px;
    margin-bottom: 15px;
}

.testimonial-card p {
    color: var(--text-light);
    font-style: italic;
    line-height: 1.8;
    margin-bottom: 20px;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.testimonial-author strong {
    color: var(--text-dark);
    font-size: 16px;
}

.testimonial-author span {
    color: var(--text-light);
    font-size: 13px;
}

.bg-light {
    background-color: #f7fafc;
}

/* ===== 技术栈 ===== */
.bg-gradient {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.text-white {
    color: var(--white) !important;
}

.tech-stack {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.tech-category {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 30px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.tech-category h3 {
    color: var(--white);
    font-size: 20px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.tech-items {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tech-badge {
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
}

/* ===== 扫码登录 ===== */
.qr-login-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.qr-code-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
}

.qr-code-box {
    background: var(--white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    text-align: center;
}

#qrcode {
    margin-bottom: 20px;
}

.qr-hint {
    color: var(--text-light);
    font-size: 14px;
}

.qr-steps {
    display: flex;
    gap: 30px;
}

.qr-step {
    text-align: center;
}

.step-number {
    display: inline-flex;
    width: 50px;
    height: 50px;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border-radius: 50%;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 10px;
}

.qr-benefits h3 {
    font-size: 28px;
    margin-bottom: 30px;
}

.benefits-list {
    list-style: none;
}

.benefits-list li {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 0;
    font-size: 18px;
    color: var(--text-dark);
}

.benefits-list i {
    color: var(--primary-color);
    font-size: 24px;
}

/* ===== 下载区域 ===== */
.download-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
}

.download-text {
    color: var(--white);
}

.download-text h2 {
    font-size: 48px;
    margin-bottom: 20px;
}

.download-text p {
    font-size: 20px;
    opacity: 0.9;
    margin-bottom: 40px;
}

.download-buttons {
    display: flex;
    gap: 20px;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 30px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    color: var(--white);
    text-decoration: none;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.download-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-5px);
}

.download-btn i {
    font-size: 40px;
}

.download-btn small {
    display: block;
    font-size: 12px;
    opacity: 0.8;
}

.download-btn strong {
    display: block;
    font-size: 18px;
}

.qr-download-box {
    background: var(--white);
    padding: 30px;
    border-radius: 20px;
    text-align: center;
}

#downloadQrcode {
    margin-bottom: 15px;
}

.qr-download-box p {
    color: var(--text-dark);
    font-size: 14px;
}

/* ===== 联系我们 ===== */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    display: flex;
    gap: 20px;
    padding: 25px;
    background: var(--bg-light);
    border-radius: 15px;
    transition: var(--transition);
}

.contact-item:hover {
    transform: translateX(10px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.contact-item i {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border-radius: 10px;
    font-size: 24px;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 18px;
    margin-bottom: 5px;
}

.contact-item p {
    color: var(--text-light);
}

.contact-form {
    background: var(--bg-light);
    padding: 40px;
    border-radius: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid transparent;
    border-radius: 10px;
    font-size: 16px;
    transition: var(--transition);
    background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* ===== 页脚 ===== */
.footer {
    background: linear-gradient(135deg, #1B5E20, #2E7D32);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    font-size: 20px;
    margin-bottom: 20px;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: var(--white);
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--white);
    text-decoration: none;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
}
.icp-info {
    margin-bottom: 8px;
}

.icp-info a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    text-decoration: none;
    transition: color 0.3s;
}

.icp-info a:hover {
    color: var(--primary-color);
}

/* ===== 返回顶部 ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
}

/* ===== 隐私政策页面 ===== */
.privacy-policy {
    padding-top: 100px;
    background: var(--bg-light);
}

.privacy-content {
    max-width: 900px;
    margin: 0 auto;
    background: var(--white);
    padding: 60px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
}

.privacy-title {
    font-size: 42px;
    margin-bottom: 10px;
    text-align: center;
}

.privacy-update {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 40px;
}

.privacy-section {
    margin-bottom: 40px;
}

.privacy-section h2 {
    font-size: 28px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.privacy-section h3 {
    font-size: 20px;
    margin: 25px 0 15px;
    color: var(--text-dark);
}

.privacy-section p {
    line-height: 1.8;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.privacy-section ul {
    margin: 15px 0 15px 30px;
    line-height: 1.8;
}

.privacy-section ul li {
    margin-bottom: 10px;
    color: var(--text-dark);
}

.privacy-footer {
    text-align: center;
    padding-top: 40px;
    border-top: 2px solid var(--bg-light);
}

.privacy-footer p {
    margin-bottom: 20px;
}

/* ===== 动画 ===== */
@keyframes scroll {
    0% {
        transform: translateX(-50%) translateY(0);
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        transform: translateX(-50%) translateY(12px);
        opacity: 0;
    }
}

.animate-fade-in {
    animation: fadeIn 1s ease-out;
}

.animate-fade-in-delay-1 {
    animation: fadeIn 1s ease-out 0.2s both;
}

.animate-fade-in-delay-2 {
    animation: fadeIn 1s ease-out 0.4s both;
}

.animate-fade-in-delay-3 {
    animation: fadeIn 1s ease-out 0.6s both;
}

.animate-fade-in-delay-4 {
    animation: fadeIn 1s ease-out 0.8s both;
}

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

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

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

.animate-on-scroll {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease-out;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* ===== 响应式设计 ===== */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--white);
        flex-direction: column;
        padding: 30px;
        transition: var(--transition);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

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

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

    .hero-subtitle {
        font-size: 18px;
    }

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

    .hero-stats {
        grid-template-columns: 1fr;
    }

    .phone-mockup {
        width: 250px;
        height: 500px;
    }

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

    .process-section {
        padding: 30px 20px;
    }

    .process-grid,
    .emulsions-grid {
        flex-direction: column;
    }

    .process-arrow {
        transform: rotate(90deg);
        margin: 10px 0;
    }

    .process-step,
    .emulsion-step {
        min-width: 100%;
    }

    .product-one-content {
        grid-template-columns: 1fr;
        padding: 30px 20px;
        gap: 30px;
    }

    .product-one-left {
        position: relative;
        top: 0;
    }

    .product-one-image {
        padding: 30px;
    }

    .product-one-right h2 {
        font-size: 32px;
    }

    .product-badge-large {
        position: static;
        display: inline-block;
        margin-bottom: 15px;
    }

    .usage-row {
        grid-template-columns: 1fr;
    }

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

    .testimonials {
        padding: 30px 20px;
    }

    .brand-logo img {
        max-width: 200px;
    }

    .tech-stack {
        grid-template-columns: 1fr;
    }

    .qr-login-content,
    .download-content,
    .contact-content {
        grid-template-columns: 1fr;
    }

    .qr-steps {
        flex-direction: column;
    }

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

    .privacy-content {
        padding: 30px 20px;
    }

    .section-title {
        font-size: 32px;
    }
}

/* ================================
   CMGS 小程序展示区域
   ================================ */

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

.cmgs-showcase .section-title,
.cmgs-showcase .section-subtitle {
    color: white;
}

.cmgs-content {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: start;
}

.cmgs-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

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

.cmgs-feature-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
}

.cmgs-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.cmgs-text h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 6px;
}

.cmgs-text p {
    font-size: 13px;
    opacity: 0.9;
    line-height: 1.5;
}

.cmgs-right {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.cmgs-qr-card {
    background: white;
    border-radius: 20px;
    padding: 24px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.cmgs-qr-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    color: #07c160;
    font-weight: 600;
    font-size: 16px;
}

.cmgs-qr-header i {
    font-size: 24px;
}

.cmgs-qr-code {
    width: 200px;
    height: 200px;
    margin: 0 auto 20px;
    background: #f5f5f5;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-placeholder {
    text-align: center;
    color: #999;
}

.qr-placeholder i {
    font-size: 48px;
    margin-bottom: 8px;
    display: block;
}

.qr-placeholder p {
    font-size: 14px;
    font-weight: 600;
    color: #666;
    margin-bottom: 4px;
}

.qr-placeholder span {
    font-size: 11px;
}

.cmgs-qr-footer {
    text-align: center;
}

.cmgs-qr-footer p {
    font-size: 12px;
    color: #999;
    margin-bottom: 12px;
    font-family: monospace;
}

.cmgs-release-info {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.release-badge {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.release-badge span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    font-size: 13px;
}

.release-badge i {
    opacity: 0.8;
}

.release-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    text-align: center;
}

.release-stats .stat-value {
    display: block;
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 4px;
}

.release-stats .stat-label {
    font-size: 12px;
    opacity: 0.8;
}

/* 响应式 */
@media (max-width: 992px) {
    .cmgs-content {
        grid-template-columns: 1fr;
    }
    
    .cmgs-features {
        grid-template-columns: 1fr;
    }
    
    .cmgs-right {
        order: -1;
    }
}

@media (max-width: 576px) {
    .release-stats {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .release-stats .stat {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 8px 16px;
        background: rgba(255, 255, 255, 0.1);
        border-radius: 8px;
    }
    
    .release-stats .stat-value {
        font-size: 20px;
        margin-bottom: 0;
    }
}

/* ================================
   Apsah APP 下载区域 - 重构样式
   ================================ */

.apsah-showcase {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.apsah-showcase::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.apsah-showcase .section-title,
.apsah-showcase .section-subtitle {
    color: white;
    position: relative;
    z-index: 1;
}

.apsah-content {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: start;
    position: relative;
    z-index: 1;
}

/* 左侧功能列表 */
.apsah-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

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

.apsah-feature-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.apsah-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
    box-shadow: 0 4px 15px rgba(245, 87, 108, 0.3);
}

.apsah-text h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 6px;
    color: white;
}

.apsah-text p {
    font-size: 13px;
    opacity: 0.9;
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.85);
}

/* 右侧下载卡片 */
.apsah-download {
    position: sticky;
    top: 100px;
}

.download-card {
    background: white;
    border-radius: 24px;
    padding: 32px;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.3);
    color: #333;
}

/* 应用头部信息 */
.download-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 28px;
    padding-bottom: 24px;
    border-bottom: 1px solid #f0f0f0;
}

.app-icon {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, #3ddc84 0%, #2dd673 100%);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    color: white;
    box-shadow: 0 8px 25px rgba(61, 220, 132, 0.3);
    flex-shrink: 0;
}

.app-info h3 {
    font-size: 24px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 4px;
}

.app-version {
    display: inline-block;
    background: #f0f0f0;
    color: #666;
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 20px;
    margin-right: 8px;
}

.app-platform {
    display: inline-block;
    background: linear-gradient(135deg, #3ddc84 0%, #2dd673 100%);
    color: white;
    font-size: 11px;
    padding: 4px 10px;
    border-radius: 20px;
    font-weight: 600;
}

/* 统计数据 */
.download-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 28px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 16px;
}

.stat-item {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-num {
    font-size: 18px;
    font-weight: 700;
    color: #1a1a1a;
    line-height: 1.2;
}

.stat-unit {
    font-size: 11px;
    color: #999;
    font-weight: 500;
}

.stat-desc {
    font-size: 11px;
    color: #666;
    margin-top: 4px;
}

/* 下载按钮 */
.download-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px;
}

.btn-download {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    border-radius: 14px;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-download i {
    font-size: 24px;
    width: 32px;
    text-align: center;
}

.btn-download span {
    font-size: 16px;
    font-weight: 600;
    flex: 1;
}

.btn-download small {
    font-size: 11px;
    opacity: 0.8;
    font-weight: 400;
}

.btn-download.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.btn-download.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(102, 126, 234, 0.5);
}

.btn-download.btn-secondary {
    background: #f8f9fa;
    color: #555;
    border: 2px solid #e0e0e0;
}

.btn-download.btn-secondary:hover {
    background: #e8e9ea;
    border-color: #d0d0d0;
    transform: translateY(-2px);
}

/* 底部元信息 */
.download-meta {
    text-align: center;
    padding-top: 16px;
    border-top: 1px solid #f0f0f0;
}

.download-meta span {
    font-size: 12px;
    color: #999;
}

.download-meta i {
    margin-right: 6px;
}

/* 响应式 */
@media (max-width: 992px) {
    .apsah-content {
        grid-template-columns: 1fr;
    }
    
    .apsah-features {
        grid-template-columns: 1fr;
    }
    
    .apsah-download {
        position: static;
        order: -1;
        max-width: 500px;
        margin: 0 auto 40px;
    }
}

@media (max-width: 576px) {
    .download-card {
        padding: 24px;
    }
    
    .download-header {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }
    
    .download-stats {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .stat-item {
        flex-direction: row;
        justify-content: space-between;
        padding: 12px 16px;
        background: white;
        border-radius: 10px;
    }
    
    .btn-download {
        padding: 14px 16px;
    }
}

/* ================================
   区块链溯源区块样式
   ================================ */

#blockchain {
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ec 100%);
}

#blockchain .section-title {
    background: linear-gradient(135deg, #2c5aa0, #4a90e2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

#blockchain .feature-icon {
    background: linear-gradient(135deg, #2c5aa0, #4a90e2);
}

#blockchain .feature-card:hover {
    box-shadow: 0 20px 50px rgba(44, 90, 160, 0.3);
}

/* ================================
   果蔬病虫害防治区块样式
   ================================ */

#pest {
    background: linear-gradient(135deg, #f1f8e9 0%, #dcedc8 100%);
}

#pest .section-title {
    background: linear-gradient(135deg, #4caf50, #8bc34a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

#pest .feature-icon {
    background: linear-gradient(135deg, #4caf50, #8bc34a);
}

#pest .feature-card:hover {
    box-shadow: 0 20px 50px rgba(76, 175, 80, 0.3);
}

/* ================================
   Apsah APP 标题优化
   ================================ */

#apsah .section-title {
    font-size: 48px !important;
    font-weight: 700;
    margin-bottom: 16px;
    text-shadow: 0 2px 20px rgba(0,0,0,0.2);
}

#apsah .section-subtitle {
    font-size: 20px !important;
    opacity: 0.9;
    font-weight: 400;
}

@media (max-width: 768px) {
    #apsah .section-title {
        font-size: 36px !important;
    }
    #apsah .section-subtitle {
        font-size: 16px !important;
    }
}