/* 语言切换样式 */
.lang-switch {
    display: flex;
    margin-left: 2rem;
    position: relative;
    align-items: center;
}

.lang-dropdown {
    position: relative;
}

.lang-toggle {
    background: transparent;
    border: 1px solid #333;
    color: #aaa;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    flex-shrink: 0;
}

.lang-toggle:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: #fff;
    border-color: #0071e3;
    transform: scale(1.05);
}

.lang-icon {
    font-size: 0.85rem;
    display: inline-block;
    transition: transform 0.3s ease;
    line-height: 1;
}

.lang-toggle:hover .lang-icon {
    transform: scale(1.1);
}

.lang-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background-color: #1a1a1a;
    border: 1px solid #333;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    padding: 0.5rem 0;
    min-width: 140px;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-5px);
    transition: all 0.3s ease;
}

.lang-dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 0.7rem 1rem;
    background: transparent;
    border: none;
    color: #aaa;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: left;
    gap: 0.5rem;
}

.lang-option:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: #fff;
}

.lang-option.active {
    background-color: rgba(0, 113, 227, 0.1);
    color: #0071e3;
}

.lang-option:first-child {
    border-radius: 8px 8px 0 0;
}

.lang-option:last-child {
    border-radius: 0 0 8px 8px;
}

.flag-icon {
    font-size: 0.85rem;
    display: inline-block;
    line-height: 1;
}

/* 重置样式和基础设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: #000;
    color: #f5f5f7;
    line-height: 1.5;
    font-size: 16px;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* 头部样式 */
.header {
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid #222;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    min-height: 60px;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #fff;
    margin: 0;
    line-height: 1;
}

.nav {
    display: flex;
    align-items: center;
    height: 100%;
}

.nav ul {
    display: flex;
    list-style: none;
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav ul li {
    margin-left: 2rem;
    display: flex;
    align-items: center;
}

.nav ul li a {
    color: #aaa;
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s ease;
    line-height: 1;
    padding: 0.5rem 0;
    display: block;
}

.nav ul li a:hover,
.nav ul li a.active {
    color: #fff;
}

/* Hero区域样式 */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #000 0%, #1a1a1a 100%);
    position: relative;
    overflow: hidden;
    background-image: url('https://images.unsplash.com/photo-1550751827-4bd374c3f58b?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80');
    background-size: cover;
    background-position: center;
}

.hero::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0.9) 70%);
    z-index: 0;
}

.particles-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 600px;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1rem;
    background: linear-gradient(to right, #fff, #ccc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-description {
    font-size: 1.2rem;
    color: #aaa;
    margin-bottom: 2rem;
}

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

.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background-color: #0071e3;
    color: white;
}

.btn-primary:hover {
    background-color: #0077ed;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 113, 227, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: #fff;
    border-color: #333;
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.05);
    transform: translateY(-2px);
}

/* 特性区域样式 */
.features {
    padding: 6rem 0;
    background-color: #000;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-item {
    text-align: center;
    padding: 2rem;
    border-radius: 10px;
    background: linear-gradient(135deg, #111 0%, #1a1a1a 100%);
    transition: transform 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-item:hover {
    transform: translateY(-5px);
}

.feature-item::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.unsplash.com/photo-1499951360447-b19be8fe80f5?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80') center/cover;
    opacity: 0.05;
    z-index: -1;
}

.feature-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.feature-item h3::before {
    content: "💻";
    font-size: 1.2rem;
}

.feature-item:nth-child(2) h3::before {
    content: "⚡";
}

.feature-item:nth-child(3) h3::before {
    content: "🔒";
}

.feature-item p {
    color: #aaa;
    font-size: 1rem;
}

/* 精选应用区域样式 */
.featured-apps {
    padding: 6rem 0;
    background-color: #080808;
    background-image: linear-gradient(rgba(8, 8, 8, 0.9), rgba(8, 8, 8, 0.9)), 
                      url('https://images.unsplash.com/photo-1550745165-9bc0b252726f?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80');
    background-size: cover;
    background-position: center;
}

.featured-apps .section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.app-card {
    background: linear-gradient(135deg, #111 0%, #1a1a1a 100%);
    border-radius: 10px;
    padding: 2rem;
    text-align: center;
    transition: transform 0.3s ease;
    position: relative;
    overflow: hidden;
}

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

.app-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.unsplash.com/photo-1547082299-de196ea013d7?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1920&q=80') center/cover;
    opacity: 0.03;
    z-index: -1;
}

.app-icon {
    position: relative;
}

.icon-placeholder {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #0071e3 0%, #0055a0 100%);
    border-radius: 18px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    background-size: cover;
    background-position: center;
}

/* 为三个应用图标设置不同的背景图片 */
.app-card:nth-child(1) .icon-placeholder {
    background-image: url('https://images.unsplash.com/photo-1552664730-d307ca884978?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80');
}

.app-card:nth-child(2) .icon-placeholder {
    background-image: url('https://images.unsplash.com/photo-1558655146-d09347e92766?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1920&q=80');
}

.app-card:nth-child(3) .icon-placeholder {
    background-image: url('https://images.unsplash.com/photo-1511452885600-a3d2c9148a31?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80');
}

/* 移除图标文字 */
.icon-placeholder::before {
    content: "";
}

.app-name {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #fff;
}

.app-description {
    color: #aaa;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.app-download-btn {
    display: inline-block;
    padding: 0.6rem 1.5rem;
    border-radius: 30px;
    text-decoration: none;
    color: #0071e3;
    border: 1px solid #0071e3;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.app-download-btn:hover {
    background-color: #0071e3;
    color: white;
}

/* 应用页面样式 */
.apps-hero,
.about-hero,
.privacy-policy {
    padding: 8rem 0 4rem;
    text-align: center;
    background: linear-gradient(135deg, #000 0%, #1a1a1a 100%);
    background-image: linear-gradient(rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.8)), 
                      url('https://images.unsplash.com/photo-1551650975-87deedd944c3?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(to right, #fff, #ccc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-description {
    font-size: 1.2rem;
    color: #aaa;
    max-width: 600px;
    margin: 0 auto;
}

.apps-section {
    padding: 4rem 0;
    background-color: #000;
}

.apps-category-title {
    font-size: 2rem;
    margin-bottom: 2rem;
    text-align: center;
    color: #fff;
}

.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

/* 应用页面中的应用图标 */
.app-card .app-icon .icon-placeholder {
    width: 80px;
    height: 80px;
    border-radius: 18px;
    margin: 0 auto 1.5rem;
    background-size: cover;
    background-position: center;
}

/* Mac应用图标 */
.apps-section:nth-child(2) .app-card:nth-child(1) .icon-placeholder {
    background-image: url('https://images.unsplash.com/photo-1552664730-d307ca884978?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80');
}

.apps-section:nth-child(2) .app-card:nth-child(2) .icon-placeholder {
    background-image: url('https://images.unsplash.com/photo-1551650975-87deedd944c3?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1920&q=80');
}

.apps-section:nth-child(2) .app-card:nth-child(3) .icon-placeholder {
    background-image: url('https://images.unsplash.com/photo-1547082299-de196ea013d7?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1920&q=80');
}

/* iOS应用图标 */
.apps-section:nth-child(3) .app-card:nth-child(1) .icon-placeholder {
    background-image: url('https://images.unsplash.com/photo-1511452885600-a3d2c9148a31?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80');
}

.apps-section:nth-child(3) .app-card:nth-child(2) .icon-placeholder {
    background-image: url('https://images.unsplash.com/photo-1511452885600-a3d2c9148a31?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80');
}

.apps-section:nth-child(3) .app-card:nth-child(3) .icon-placeholder {
    background-image: url('https://images.unsplash.com/photo-1511452885600-a3d2c9148a31?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80');
}

/* 视频弹窗样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: #1a1a1a;
    margin: 5% auto;
    padding: 2rem;
    border-radius: 10px;
    width: 90%;
    max-width: 900px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    position: relative;
    animation: modalopen 0.4s;
}

@keyframes modalopen {
    from {opacity: 0; transform: translateY(-60px);}
    to {opacity: 1; transform: translateY(0);}
}

.modal-content h2 {
    color: #fff;
    margin-bottom: 1.5rem;
    text-align: center;
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    position: absolute;
    right: 20px;
    top: 15px;
    cursor: pointer;
}

.close:hover,
.close:focus {
    color: #fff;
}

.video-container {
    max-width: 100%;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.video-container video {
    width: 100%;
    height: auto;
    outline: none;
}

/* LinkVault应用详情页面样式 */
.app-detail-hero {
    padding: 8rem 0 4rem;
    background: linear-gradient(135deg, #000 0%, #1a1a1a 100%);
    background-image: linear-gradient(rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.8)), 
                      url('https://images.unsplash.com/photo-1551650975-87deedd944c3?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
}

.app-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.app-detail-info h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: linear-gradient(to right, #fff, #ccc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.app-detail-subtitle {
    font-size: 1.5rem;
    color: #0071e3;
    margin-bottom: 2rem;
}

.app-detail-description {
    font-size: 1.1rem;
    color: #aaa;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.app-detail-buttons {
    display: flex;
    gap: 1rem;
}

.app-detail-image {
    display: flex;
    justify-content: center;
}

.app-icon-placeholder .icon-placeholder {
    width: 200px;
    height: 200px;
    border-radius: 25px;
    background-image: url('https://images.unsplash.com/photo-1547082299-de196ea013d7?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1920&q=80');
}

/* 应用特性样式 */
.app-features {
    padding: 6rem 0;
    background-color: #000;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: linear-gradient(135deg, #111 0%, #1a1a1a 100%);
    border-radius: 10px;
    padding: 2rem;
    transition: transform 0.3s ease;
}

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

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #fff;
}

.feature-card p {
    color: #aaa;
    line-height: 1.7;
}

/* 目标用户样式 */
.target-users {
    padding: 6rem 0;
    background-color: #080808;
}

.users-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.user-card {
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, #111 0%, #1a1a1a 100%);
    border-radius: 10px;
}

.user-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #fff;
}

.user-card p {
    color: #aaa;
    line-height: 1.7;
}

.conclusion {
    text-align: center;
    font-size: 1.2rem;
    color: #fff;
    max-width: 800px;
    margin: 0 auto;
    padding: 2.5rem;
    background: linear-gradient(135deg, #111 0%, #1a1a1a 100%);
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
}

.conclusion::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.unsplash.com/photo-1550751827-4bd374c3f58b?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80') center/cover;
    opacity: 0.03;
    z-index: -1;
}

/* 隐私政策样式 */
.privacy-policy {
    text-align: left;
}

.privacy-policy .section-title {
    text-align: center;
}

.privacy-policy .section-description {
    text-align: center;
    margin-bottom: 3rem;
}

.policy-content {
    max-width: 800px;
    margin: 0 auto;
    background-color: rgba(255, 255, 255, 0.9);
    padding: 2rem;
    border-radius: 10px;
    color: #333;
}

.policy-section {
    margin-bottom: 2rem;
}

.policy-section h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #000;
}

.policy-section p {
    color: #333;
    margin-bottom: 1rem;
    line-height: 1.7;
}

.policy-section ul {
    color: #333;
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.policy-section li {
    margin-bottom: 0.5rem;
    line-height: 1.7;
}

/* 关于页面样式 */
.about-content {
    padding: 4rem 0;
    background-color: #080808;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.about-text p {
    color: #aaa;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.about-image {
    width: 100%;
    height: 300px;
    border-radius: 10px;
    overflow: hidden;
}

.about-page-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.team-section {
    padding: 4rem 0;
    text-align: center;
    background-color: #000;
}

.team-section h3 {
    font-size: 2rem;
    margin-bottom: 2rem;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.team-member {
    background: linear-gradient(135deg, #111 0%, #1a1a1a 100%);
    border-radius: 10px;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.team-member::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.unsplash.com/photo-1517245386807-bb43f82c33c4?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80') center/cover;
    opacity: 0.03;
    z-index: -1;
}

.member-avatar {
    position: relative;
}

.avatar-placeholder {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, #0071e3 0%, #0055a0 100%);
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    background-size: cover;
    background-position: center;
}

/* 为团队成员头像设置不同的背景图片 */
.team-member:nth-child(1) .avatar-placeholder {
    background-image: url('https://images.unsplash.com/photo-1517245386807-bb43f82c33c4?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80');
}

.team-member:nth-child(2) .avatar-placeholder {
    background-image: url('https://images.unsplash.com/photo-1573496359142-b8d87734a5a2?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80');
}

.team-member:nth-child(3) .avatar-placeholder {
    background-image: url('https://images.unsplash.com/photo-1560250097-0b93528c311a?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2070&q=80');
}

/* 移除团队成员头像文字 */
.avatar-placeholder::before {
    content: "";
}

.team-member h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.team-member p {
    color: #aaa;
    font-size: 0.95rem;
}

.contact-section {
    padding: 4rem 0;
    text-align: center;
    background-color: #080808;
}

.contact-section h3 {
    font-size: 2rem;
    margin-bottom: 2rem;
}

.contact-info p {
    color: #aaa;
    margin-bottom: 1rem;
}

.contact-info ul {
    list-style: none;
    color: #aaa;
}

.contact-info ul li {
    margin-bottom: 0.5rem;
}

/* 页脚样式 */
.footer {
    background-color: #080808;
    padding: 2rem 0;
    border-top: 1px solid #222;
}

.footer .container {
    text-align: center;
}

.footer p {
    color: #888;
    font-size: 0.9rem;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .header .container {
        padding: 1rem;
        flex-direction: column;
        gap: 1rem;
        min-height: auto;
    }
    
    .nav {
        width: 100%;
        justify-content: space-between;
    }
    
    .lang-switch {
        margin-left: 0;
        margin-right: 0;
    }
    
    .lang-toggle {
        width: 28px;
        height: 28px;
        font-size: 0.8rem;
    }
    
    .lang-icon {
        font-size: 0.75rem;
    }
    
    .nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
    }
    
    .nav ul li {
        margin-left: 0.5rem;
        margin-right: 0.5rem;
    }
    
    .lang-dropdown-menu {
        right: -50px;
        min-width: 120px;
        top: calc(100% + 5px);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .btn {
        text-align: center;
    }
    
    .features {
        padding: 3rem 0;
    }
    
    .featured-apps {
        padding: 3rem 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .privacy-policy {
        padding: 6rem 0 2rem;
    }
    
    .policy-content {
        padding: 1rem;
    }
    
    .app-detail-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .app-detail-buttons {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .app-icon-placeholder .icon-placeholder {
        width: 150px;
        height: 150px;
    }
    
    /* LinkVault图标移动端优化 */
    .linkvault-icon-large {
        width: 150px;
        height: 150px;
        border-radius: 34px;
    }
}

/* LinkVault专用图标样式 - 使用真实图标 */
.linkvault-icon {
    width: 80px;
    height: 80px;
    border-radius: 18px;
    margin: 0 auto 1.5rem;
    background-image: url('../images/linkVault_Icon.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

/* 移除CSS绘制的伪元素，使用真实图标 */
.linkvault-icon::before,
.linkvault-icon::after {
    display: none;
}

.linkvault-icon-large {
    width: 200px;
    height: 200px;
    border-radius: 45px;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.3);
}

/* 移除链接符号装饰，因为真实图标已经包含了设计元素 */
.linkvault-icon .link-symbol {
    display: none;
}

.linkvault-icon-large .link-symbol {
    display: none;
}

/* 移除LinkVault应用的通用背景图片，避免冲突 */
.app-card:nth-child(1) .icon-placeholder {
    background-image: none;
}

.apps-section:nth-child(2) .app-card:nth-child(1) .icon-placeholder {
    background-image: none;
}

.app-icon-placeholder .icon-placeholder {
    background-image: none;
}