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

/* 基础样式 */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: #fff;
    color: #333;
    line-height: 1.6;
    overflow-x: hidden;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
}

.nav-logo {
    font-size: 22px;
    font-weight: bold;
    color: #2196F3;
    text-decoration: none;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
    list-style: none;
}

.nav-link {
    text-decoration: none;
    color: #666;
    font-size: 15px;
    transition: color 0.3s;
}

.nav-link:hover {
    color: #2196F3;
}

.navbar .nav-btn {
    background: linear-gradient(135deg, #2196F3, #64B5F6);
    color: #fff;
    padding: 8px 24px;
    border-radius: 25px;
    text-decoration: none;
    font-size: 14px;
    border: none;
    cursor: pointer;
    transition: transform 0.3s;
}

.navbar .nav-btn:hover {
    transform: scale(1.05);
}

.language-selector {
    padding: 6px 12px;
    border: 1px solid #2196F3;
    border-radius: 6px;
    background: white;
    color: #2196F3;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.language-selector:hover {
    background: #2196F3;
    color: white;
}

.language-selector:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(33, 150, 243, 0.2);
}

/* 英雄区 */
.hero {
    min-height: 100vh;
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #FFF8F0 0%, #FFE8D6 50%, #FFD4B8 100%);
    padding: 100px 20px 60px;
}

.hero.active {
    display: flex;
}

.hero-inner {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-text {
    flex: 1.3;
}

.hero-image {
    flex: 0.7;
}

.hero-title {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0 15px;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-text h1 {
    font-size: 48px;
    color: #333;
    line-height: 1.3;
    margin-bottom: 20px;
    display: inline;
}

.hero-text h1 span {
    display: inline;
}

.hero-text h1 em {
    color: #7C4DFF;
    font-style: normal;
    display: inline;
}

.hero-text p {
    font-size: 20px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 30px;
}

.hero-desc {
    white-space: pre-line;
}

.hero-buttons {
    display: flex;
    gap: 16px;
}

.btn-primary {
    background: linear-gradient(135deg, #2196F3, #64B5F6);
    color: #fff;
    padding: 14px 36px;
    border-radius: 50px;
    font-size: 18px;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s;
    box-shadow: 0 6px 20px rgba(33, 150, 243, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(33, 150, 243, 0.4);
}

.btn-secondary {
    border: 2px solid #2196F3;
    color: #2196F3;
    padding: 12px 34px;
    border-radius: 50px;
    font-size: 18px;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s;
}

.btn-secondary:hover {
    background: #2196F3;
    color: #fff;
}

.hero-image {
    flex: 1;
    text-align: center;
}

.hero-bell {
    width: 400px;
    max-width: 100%;
    height: auto;
    transition: transform 0.3s ease;
    transform-origin: top center;
}

.hero-bell:hover {
    animation: bellSwing 1.2s ease-in-out;
    animation-iteration-count: 1;
}

@keyframes bellSwing {
    0% { transform: rotate(0deg); }
    15% { transform: rotate(5deg); }
    30% { transform: rotate(-4deg); }
    45% { transform: rotate(3deg); }
    60% { transform: rotate(-2deg); }
    75% { transform: rotate(1deg); }
    100% { transform: rotate(0deg); }
}

.hero-workflow {
    margin-top: 80px;
    padding-top: 60px;
    padding-bottom: 60px;
    border-top: 1px solid rgba(33, 150, 243, 0.2);
    width: 100%;
    max-width: 1200px;
}

.hero-workflow .workflow-title {
    text-align: center;
    font-size: 36px;
    color: #333;
    margin-bottom: 40px;
}

.hero-workflow .workflow-split {
    display: flex;
    justify-content: center;
}

.hero-workflow .workflow-image {
    width: 800px;
    max-width: 90%;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.12);
}

.hero-workflow .reassurance {
    text-align: center;
    margin-top: 35px;
    font-size: 20px;
    color: #555;
}

.hero-workflow p {
    max-width: 800px;
    margin: 0 auto;
    font-size: 18px;
    line-height: 1.8;
    color: #555;
}

/* 旧版导航按钮 - 保留用于其他区域 */
.container {
    width: 100vw;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    padding-top: 80px;
}

.nav-buttons {
    display: flex;
    justify-content: center;
    padding: 8px 20px;
    background: transparent;
    backdrop-filter: none;
    border-bottom: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-buttons.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav-btn {
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(100, 181, 246, 0.3);
    color: #2196F3;
    padding: 12px 24px;
    margin: 0 10px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.nav-btn:hover {
    transform: translateY(-2px);
}

.nav-btn.active {
    background: #2196F3;
    color: white;
    border-color: #2196F3;
    box-shadow: 0 4px 15px rgba(33, 150, 243, 0.2);
}

/* 区间样式 */
.section {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 20px 40px;
    text-align: center;
    animation: fadeIn 0.5s ease;
    background: linear-gradient(135deg, #FFF8F0 0%, #FFE8D6 50%, #FFD4B8 100%);
}

.section.active {
    display: flex;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 首页/介绍区样式 */
#home h1 {
    font-size: 4rem;
    color: #2196F3;
    margin-bottom: 10px;
    text-shadow: 0 2px 10px rgba(33, 150, 243, 0.2);
}

#home h2 {
    font-size: 1.8rem;
    color: #1976D2;
    margin-bottom: 20px;
}

.subtitle {
    font-size: 1.2rem;
    color: #64B5F6;
    margin-bottom: 40px;
}

.hero-image {
    margin: 30px 0;
}

.placeholder-image {
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 6rem;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(100, 181, 246, 0.3);
    box-shadow: 0 10px 30px rgba(33, 150, 243, 0.1);
}

.main-image {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(100, 181, 246, 0.3);
    box-shadow: 0 10px 30px rgba(33, 150, 243, 0.1);
}

.brand-advantage {
    margin: 30px 0;
    text-align: center;
}

.brand-main {
    font-size: 1.5rem;
    color: #1976D2;
    font-weight: 600;
    margin-bottom: 10px;
    line-height: 1.5;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.brand-sub {
    font-size: 1rem;
    color: #64B5F6;
    font-style: italic;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.description {
    max-width: 600px;
    font-size: 1.1rem;
    color: #424242;
    line-height: 1.8;
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

.note {
    max-width: 600px;
    font-size: 1rem;
    color: #666;
    line-height: 1.6;
    text-align: center;
    background: rgba(33, 150, 243, 0.05);
    padding: 15px 25px;
    border-radius: 12px;
    border-left: 4px solid #2196F3;
    margin: 20px auto;
    font-style: italic;
}

.primary-value {
    margin: 25px 0;
    text-align: center;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.primary-value p {
    font-size: 1.2rem;
    color: #1976D2;
    line-height: 1.6;
    margin: 0;
}

.primary-value b {
    font-weight: 700;
    color: #2196F3;
}

.micro-benefits {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 20px 0;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.micro-benefits span {
    background: rgba(33, 150, 243, 0.1);
    color: #1976D2;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.micro-benefits span:hover {
    background: rgba(33, 150, 243, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.15);
}

.reassurance {
    background: rgba(76, 175, 80, 0.1);
    padding: 20px;
    border-radius: 15px;
    margin: 20px 0;
    text-align: center;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.reassurance p {
    color: #666;
    font-size: 1rem;
    line-height: 1.6;
    margin: 0;
}

.cta {
    text-align: center;
    margin: 25px 0;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.download-btn {
    background: linear-gradient(135deg, #2196F3 0%, #1976D2 100%);
    color: white;
    padding: 16px 40px;
    border: none;
    border-radius: 30px;
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(33, 150, 243, 0.3);
    text-decoration: none;
    display: inline-block;
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(33, 150, 243, 0.4);
}

.cta-sub {
    color: #64B5F6;
    font-size: 0.95rem;
    margin-top: 12px;
    font-style: italic;
}

/* 功能说明区样式 */
#features h2 {
    font-size: 2.5rem;
    color: #2196F3;
    margin-bottom: 40px;
    text-shadow: 0 2px 10px rgba(33, 150, 243, 0.2);
}

/* How It Works Section Styles */
.dual-modes {
    display: flex;
    gap: 30px;
    justify-content: center;
    margin: 30px 0;
    flex-wrap: wrap;
}

.mode {
    background: rgba(255, 255, 255, 0.95);
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(33, 150, 243, 0.1);
    flex: 1;
    min-width: 250px;
    text-align: center;
    border: 1px solid rgba(100, 181, 246, 0.2);
}

.mode h3 {
    color: #1976D2;
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.mode p {
    color: #666;
    font-size: 1rem;
    line-height: 1.6;
}

.mode-note {
    text-align: center;
    color: #666;
    font-size: 0.95rem;
    margin: 20px 0;
    font-style: italic;
}

.workflow-title {
    text-align: center;
    font-size: 1.5rem;
    color: #1976D2;
    margin: 30px 0 20px;
    font-weight: 600;
}

.workflow-split {
    display: flex;
    gap: 40px;
    justify-content: center;
    margin: 20px 0 40px;
    flex-wrap: wrap;
}

.workflow-image {
    max-width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.workflow-column h4 {
    color: #1976D2;
    font-size: 1.2rem;
    margin-bottom: 15px;
}

.workflow-column div {
    color: #666;
    font-size: 1rem;
    line-height: 1.8;
}

.process-simple {
    display: flex;
    gap: 30px;
    justify-content: center;
    margin: 30px 0;
    flex-wrap: wrap;
}

.process-simple > div {
    background: rgba(255, 255, 255, 0.95);
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(33, 150, 243, 0.1);
    flex: 1;
    min-width: 200px;
    text-align: center;
    border: 1px solid rgba(100, 181, 246, 0.2);
}

.process-simple h4 {
    color: #1976D2;
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.process-simple p {
    color: #666;
    font-size: 1rem;
    line-height: 1.6;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin: 30px 0;
}

.feature {
    background: rgba(255, 255, 255, 0.95);
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(33, 150, 243, 0.1);
    text-align: center;
    border: 1px solid rgba(100, 181, 246, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(33, 150, 243, 0.15);
}

.feature h3 {
    color: #1976D2;
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.feature p {
    color: #666;
    font-size: 1rem;
    line-height: 1.6;
}

.features-container {
    display: flex;
    gap: 40px;
    max-width: 1200px;
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
}

.process-section {
    background: rgba(255, 255, 255, 0.95);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 5px 20px rgba(33, 150, 243, 0.1);
    flex: 1;
    min-width: 350px;
    max-width: 550px;
    border: 1px solid rgba(100, 181, 246, 0.2);
}

.process-section h3 {
    font-size: 1.8rem;
    color: #1976D2;
    margin-bottom: 30px;
    text-align: center;
    padding-bottom: 15px;
    border-bottom: 2px solid rgba(100, 181, 246, 0.3);
}

.process-flow {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.process-step {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    width: 100%;
    margin-bottom: 10px;
}

.step-number {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #2196F3 0%, #1976D2 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
    flex-shrink: 0;
    box-shadow: 0 2px 10px rgba(33, 150, 243, 0.3);
}

.process-step.completed .step-number {
    background: linear-gradient(135deg, #4CAF50 0%, #45a049 100%);
    box-shadow: 0 2px 10px rgba(76, 175, 80, 0.3);
}

.step-content {
    flex: 1;
}

.step-content h4 {
    font-size: 1.2rem;
    color: #1976D2;
    margin-bottom: 8px;
}

.step-content p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 10px;
}

.step-image {
    margin-top: 10px;
}

.placeholder-screenshot {
    width: 100%;
    height: 120px;
    background: rgba(33, 150, 243, 0.1);
    border: 2px dashed rgba(100, 181, 246, 0.5);
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #2196F3;
}

.placeholder-screenshot span {
    font-size: 3rem;
    margin-bottom: 10px;
}

.placeholder-screenshot p {
    font-size: 0.9rem;
    color: #64B5F6;
    margin: 0;
}

.process-arrow {
    font-size: 2rem;
    color: #2196F3;
    margin: 5px 0;
    font-weight: bold;
}

/* 常见问题区样式 */
#faq h2 {
    font-size: 2.5rem;
    color: #2196F3;
    margin-bottom: 40px;
    text-shadow: 0 2px 10px rgba(33, 150, 243, 0.2);
}

.faq-container {
    background: rgba(255, 255, 255, 0.95);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 5px 20px rgba(33, 150, 243, 0.1);
    max-width: 800px;
    width: 100%;
    border: 1px solid rgba(100, 181, 246, 0.2);
}

.faq-item {
    border-bottom: 1px solid rgba(100, 181, 246, 0.2);
    padding: 25px 0;
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-question {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 15px;
}

.faq-number {
    width: 35px;
    height: 35px;
    background: linear-gradient(135deg, #2196F3 0%, #1976D2 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.1rem;
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(33, 150, 243, 0.3);
}

.faq-question h3 {
    font-size: 1.3rem;
    color: #1976D2;
    margin: 0;
    line-height: 1.4;
}

.faq-answer {
    padding-left: 50px;
    text-align: left;
}

.faq-answer p {
    color: #666;
    line-height: 1.8;
    margin: 0;
    text-align: left;
}

.faq-answer p strong {
    color: #1976D2;
    font-weight: 700;
}

/* 隐私保证区样式 */
#privacy h2 {
    font-size: 2.5rem;
    color: #2196F3;
    margin-bottom: 40px;
    text-shadow: 0 2px 10px rgba(33, 150, 243, 0.2);
}

.privacy-container {
    background: rgba(255, 255, 255, 0.95);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 5px 20px rgba(33, 150, 243, 0.1);
    max-width: 700px;
    width: 100%;
    border: 1px solid rgba(100, 181, 246, 0.2);
}

.privacy-content {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.privacy-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    background: rgba(33, 150, 243, 0.05);
    border-radius: 15px;
    transition: transform 0.3s ease;
}

.privacy-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(33, 150, 243, 0.15);
}

.privacy-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.privacy-item p {
    color: #666;
    font-size: 1.1rem;
    margin: 0;
    line-height: 1.6;
}

/* CTA区样式 */
#cta h2 {
    font-size: 2.5rem;
    color: #2196F3;
    margin-bottom: 30px;
    text-shadow: 0 2px 10px rgba(33, 150, 243, 0.2);
}

.cta-container {
    background: rgba(255, 255, 255, 0.95);
    padding: 50px 40px;
    border-radius: 20px;
    box-shadow: 0 5px 20px rgba(33, 150, 243, 0.1);
    max-width: 600px;
    width: 100%;
    text-align: center;
    border: 1px solid rgba(100, 181, 246, 0.2);
}

.cta-button {
    background: linear-gradient(135deg, #2196F3 0%, #1976D2 100%);
    color: white;
    padding: 18px 50px;
    border: none;
    border-radius: 30px;
    font-size: 1.3rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(33, 150, 243, 0.3);
    margin: 20px 0;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(33, 150, 243, 0.4);
}

.cta-subtitle {
    color: #64B5F6;
    font-size: 1rem;
    margin-top: 15px;
    font-style: italic;
}

/* 关于项目区样式 */
#about h2 {
    font-size: 2.5rem;
    color: #2196F3;
    margin-bottom: 30px;
    text-shadow: 0 2px 10px rgba(33, 150, 243, 0.2);
}

.about-content {
    background: rgba(255, 255, 255, 0.95);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 5px 20px rgba(33, 150, 243, 0.1);
    max-width: 700px;
    width: 100%;
    text-align: left;
    border: 1px solid rgba(100, 181, 246, 0.2);
}

.about-hero h2 {
    font-size: 32px;
    margin-bottom: 10px;
    color: #1976D2;
}

.about-tagline {
    color: #666;
    font-size: 18px;
    margin-bottom: 30px;
}

.about-proof {
    display: flex;
    align-items: center;
    gap: 30px;
    margin: 40px 0;
}

.about-text {
    flex: 1;
}

.team-photo {
    float: none;
    margin: 0;
    text-align: center;
}

.team-photo img {
    width: 260px;
    height: 173px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 12px 30px rgba(0,0,0,0.08);
    border: none;
}

.about-credibility {
    display: flex;
    justify-content: space-between;
    margin: 50px 0;
    text-align: center;
}

.cred-item {
    flex: 1;
}

.cred-number {
    font-size: 28px;
    font-weight: bold;
    color: #1976D2;
}

.cred-label {
    font-size: 14px;
    color: #666;
}

.promise-text {
    font-size: 20px;
    font-weight: 500;
    text-align: center;
    margin-top: 15px;
    color: #1976D2;
}

.about-content h3 {
    color: #1976D2;
    margin: 25px 0 15px;
    font-size: 1.5rem;
}

.about-content p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 15px;
}

.about-content ul {
    color: #666;
    line-height: 2;
    margin-left: 20px;
    margin-bottom: 15px;
}

/* Terms of Use 样式 */
.terms-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    text-align: left;
}

.terms-container .last-updated {
    color: #999;
    font-size: 0.9rem;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid rgba(33, 150, 243, 0.1);
}

.terms-container h3 {
    color: #1976D2;
    margin: 40px 0 20px;
    font-size: 1.5rem;
}

.terms-container h3:first-of-type {
    margin-top: 0;
}

.terms-container p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 15px;
}

.terms-container ul {
    color: #666;
    line-height: 2;
    margin-left: 30px;
    margin-bottom: 15px;
}

.terms-container li {
    margin-bottom: 8px;
}

.terms-container .contact-email {
    font-size: 1.1rem;
    color: #2196F3;
}

.back-link {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 2px solid rgba(33, 150, 243, 0.1);
}

.back-link a {
    color: #2196F3;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.back-link a:hover {
    color: #1976D2;
    text-decoration: underline;
}

/* 团队照片样式 */
.team-photo {
    float: right;
    margin: 20px 0 20px 20px;
    text-align: center;
}

.team-photo img {
    width: 200px;
    height: 133px;
    object-fit: cover;
    border-radius: 100px / 67px;
    border: 4px solid #1976D2;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

@media (max-width: 768px) {
    .about-proof {
        flex-direction: column;
        gap: 20px;
    }
    
    .team-photo img {
        width: 200px;
        height: 133px;
    }
    
    .about-credibility {
        flex-direction: column;
        gap: 20px;
    }
    
    .about-hero h2 {
        font-size: 28px;
    }
    
    .about-tagline {
        font-size: 16px;
    }
}

/* 模态窗口样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: rgba(255, 255, 255, 0.98);
    margin: 5% auto;
    padding: 0;
    border-radius: 20px;
    width: 90%;
    max-width: 700px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 30px;
    border-bottom: 2px solid rgba(33, 150, 243, 0.1);
    background: linear-gradient(135deg, rgba(33, 150, 243, 0.05) 0%, rgba(25, 118, 210, 0.05) 100%);
    border-radius: 20px 20px 0 0;
    position: sticky;
    top: 0;
    z-index: 10;
}

.modal-header h2 {
    margin: 0;
    color: #1976D2;
    font-size: 1.5rem;
}

.close {
    color: #999;
    font-size: 32px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
    line-height: 1;
}

.close:hover,
.close:focus {
    color: #1976D2;
}

.modal-body {
    padding: 30px;
    color: #666;
    line-height: 1.8;
}

.modal-body p {
    margin-bottom: 15px;
}

.modal-body h3 {
    color: #1976D2;
    margin: 25px 0 15px;
    font-size: 1.3rem;
}

.modal-body h4 {
    color: #1976D2;
    margin: 20px 0 12px;
    font-size: 1.15rem;
    font-weight: 600;
}

.modal-body ul {
    margin-left: 25px;
    margin-bottom: 20px;
}

.modal-body li {
    margin-bottom: 10px;
    line-height: 1.8;
}

.modal-body strong {
    color: #1976D2;
    font-weight: 600;
}

.modal-body .effective-date {
    color: #999;
    font-size: 0.95rem;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid rgba(33, 150, 243, 0.1);
}

/* 页脚样式 */
.footer {
    padding: 15px;
    text-align: center;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(100, 181, 246, 0.3);
    margin-top: auto;
}

.footer-links {
    margin-bottom: 10px;
    font-size: 14px;
}

.footer-links a {
    color: #2196F3;
    text-decoration: none;
    margin: 0 10px;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #1976D2;
    text-decoration: underline;
}

.footer-links span {
    color: rgba(33, 150, 243, 0.5);
}

.copyright {
    color: #757575;
    font-size: 12px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding-top: 100px;
    }
    
    .nav-buttons {
        padding: 15px;
    }
    
    .nav-btn {
        padding: 10px 18px;
        margin: 0 5px;
        font-size: 14px;
    }
    
    #home h1 {
        font-size: 3rem;
    }
    
    #home h2 {
        font-size: 1.5rem;
    }
    
    .nav-btn {
        padding: 10px 18px;
        margin: 0 5px;
        font-size: 14px;
    }
    
    .dual-modes {
        flex-direction: column;
        gap: 20px;
    }
    
    .mode {
        min-width: 100%;
    }
    
    .workflow-split {
        flex-direction: column;
        gap: 20px;
    }
    
    .workflow-column {
        min-width: 100%;
    }
    
    .process-simple {
        flex-direction: column;
        gap: 20px;
    }
    
    .process-simple > div {
        min-width: 100%;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .features-container {
        flex-direction: column;
        gap: 30px;
    }
    
    .process-section {
        min-width: 100%;
        max-width: 100%;
    }
    
    .faq-container {
        padding: 30px 20px;
    }
    
    .faq-question h3 {
        font-size: 1.2rem;
    }
    
    .brand-main {
        font-size: 1.3rem;
    }
    
    .privacy-content {
        gap: 20px;
    }
    
    .privacy-item {
        padding: 15px;
    }
    
    .cta-container {
        padding: 40px 30px;
    }
    
    .cta-button {
        padding: 15px 40px;
        font-size: 1.2rem;
    }
    
    .primary-value p {
        font-size: 1.1rem;
    }
    
    .micro-benefits {
        gap: 15px;
    }
    
    .micro-benefits span {
        padding: 6px 12px;
        font-size: 0.9rem;
    }
    
    .reassurance {
        padding: 15px;
    }
    
    .reassurance p {
        font-size: 0.95rem;
    }
    
    .cta {
        margin: 20px 0;
    }
    
    .download-btn {
        padding: 14px 32px;
        font-size: 1.1rem;
    }
    
    .cta-sub {
        font-size: 0.9rem;
    }
    
    .terms-container {
        padding: 30px 20px;
    }
    
    .terms-container h3 {
        font-size: 1.3rem;
    }
    
    .modal-content {
        width: 95%;
        margin: 10% auto;
    }
    
    .modal-header {
        padding: 20px;
    }
    
    .modal-header h2 {
        font-size: 1.3rem;
    }
    
    .modal-body {
        padding: 20px;
    }
    
    .modal-body h3 {
        font-size: 1.2rem;
    }
    
    .modal-body h4 {
        font-size: 1.1rem;
    }
    
    .about-content {
        padding: 30px 20px;
    }
}

@media (max-width: 480px) {
    #home h1 {
        font-size: 2.5rem;
    }
    
    .nav-buttons {
        padding: 15px 10px;
    }
    
    .nav-btn {
        padding: 8px 15px;
        margin: 0 3px;
        font-size: 13px;
    }
    
    .process-section {
        padding: 20px 15px;
    }
    
    .process-section h3 {
        font-size: 1.5rem;
    }
    
    .step-number {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
    
    .step-content h4 {
        font-size: 1.1rem;
    }
    
    .placeholder-screenshot {
        height: 100px;
    }
    
    .placeholder-screenshot span {
        font-size: 2.5rem;
    }
    
    .faq-container {
        padding: 20px 15px;
    }
    
    .faq-item {
        padding: 20px 0;
    }
    
    .faq-number {
        width: 30px;
        height: 30px;
        font-size: 1rem;
    }
    
    .faq-question h3 {
        font-size: 1.1rem;
    }
    
    .faq-answer {
        padding-left: 45px;
    }
    
    .primary-value p {
        font-size: 1rem;
    }
    
    .micro-benefits {
        gap: 15px;
    }
    
    .micro-benefits span {
        padding: 6px 12px;
        font-size: 0.85rem;
    }
    
    .reassurance {
        padding: 15px;
    }
    
    .reassurance p {
        font-size: 0.9rem;
    }
    
    .cta {
        margin: 20px 0;
    }
    
    .download-btn {
        padding: 12px 28px;
        font-size: 1rem;
    }
    
    .cta-sub {
        font-size: 0.85rem;
    }
    
    .terms-container {
        padding: 25px 15px;
    }
    
    .terms-container h3 {
        font-size: 1.2rem;
        margin: 30px 0 15px;
    }
    
    .terms-container ul {
        margin-left: 20px;
    }
}

@media (max-width: 480px) {
    .privacy-content {
        gap: 15px;
    }
    
    .privacy-item {
        padding: 12px;
        gap: 15px;
    }
    
    .privacy-icon {
        font-size: 2rem;
    }
    
    .cta-container {
        padding: 30px 20px;
    }
    
    .cta-button {
        padding: 12px 30px;
        font-size: 1.1rem;
    }
/* 修复：删除多余的右大括号 */
}

/* 移动端适配 */
@media (max-width: 768px) {
    .nav-inner {
        flex-direction: column;
        gap: 15px;
        padding: 15px;
    }

    .nav-links {
        gap: 15px;
    }

    .nav-logo {
        font-size: 18px;
    }

    .hero-inner {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }

    .hero-title {
        justify-content: center;
        font-size: 28px;
        flex-direction: column;
        align-items: center;
        gap: 5px;
    }

    .hero-text h1 {
        font-size: 28px;
    }

    .hero-text p {
        font-size: 16px;
    }

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

    .hero-bell {
        width: 250px;
    }

    .hero-image {
        flex: 1;
    }
}

/* 下载二维码弹窗样式 */
.qr-instruction {
    text-align: center;
    color: #666;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.qr-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 25px;
}

.qr-tab {
    padding: 10px 30px;
    border: 2px solid #1976D2;
    background: transparent;
    color: #1976D2;
    border-radius: 25px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.qr-tab.active {
    background: #1976D2;
    color: white;
}

.qr-tab:hover:not(.active) {
    background: rgba(25, 118, 210, 0.1);
}

.qr-container {
    display: flex;
    justify-content: center;
    margin-bottom: 25px;
}

#qr-code {
    border: 8px solid #f5f5f5;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    width: 200px;
    height: 200px;
}

.qr-fallback {
    text-align: center;
    color: #888;
    margin-bottom: 15px;
    font-size: 0.95rem;
}

.download-links {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.download-link {
    color: #1976D2;
    text-decoration: none;
    padding: 10px 20px;
    border: 1px solid #1976D2;
    border-radius: 20px;
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.download-link:hover {
    background: #1976D2;
    color: white;
}

/* FAQ Item Active State */
.faq-item .faq-answer {
    display: none;
    padding-top: 10px;
}

.faq-item.active .faq-answer {
    display: block;
}

.faq-question {
    cursor: pointer;
}

.faq-question:hover h3 {
    color: #2196F3;
}

/* Modal Active State */
.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ICP备案样式 */
.icp {
    color: #666;
    font-size: 12px;
    margin-top: 5px;
}

.icp a {
    color: #666;
    text-decoration: none;
    transition: color 0.3s;
}

.icp a:hover {
    color: #2196F3;
}