/* 电话录音安卓版官方网站样式 */
:root {
    --primary-color: #2E7D32;  /* 商务绿 */
    --primary-dark: #1B5E20;
    --primary-light: #4CAF50;
    --accent-color: #FF6F00;   /* 橙色强调 */
    --text-dark: #263238;
    --text-gray: #546E7A;
    --bg-light: #F5F5F5;
    --bg-white: #FFFFFF;
    --border-color: #E0E0E0;
}

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

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);
    background-color: var(--bg-light);
}

/* 导航栏样式 */
.navbar {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: white;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--accent-color);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

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

.nav-menu a {
    color: rgba(255,255,255,0.9);
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s;
    padding: 8px 12px;
    border-radius: 6px;
}

.nav-menu a:hover {
    color: white;
    background: rgba(255,255,255,0.1);
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: white;
    border-radius: 3px;
    transition: all 0.3s;
}

/* 英雄区样式 */
.hero {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 50%, #1B5E20 100%);
    color: white;
    padding: 80px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: rgba(255,255,255,0.05);
    border-radius: 50%;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.hero .subtitle {
    font-size: 20px;
    opacity: 0.95;
    margin-bottom: 40px;
    line-height: 1.8;
}

/* 下载按钮组 */
.download-group {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 30px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent-color);
    color: white;
    box-shadow: 0 4px 15px rgba(255,111,0,0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255,111,0,0.6);
}

.btn-secondary {
    background: rgba(255,255,255,0.2);
    color: white;
    border: 2px solid rgba(255,255,255,0.3);
}

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

.btn-store {
    background: var(--bg-white);
    color: var(--primary-color);
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.btn-store:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

/* 软件展示界面 */
.showcase {
    padding: 60px 20px;
    background: var(--bg-white);
}

.showcase-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.showcase-image {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
    background: linear-gradient(135deg, #f5f5f5 0%, #e0e0e0 100%);
    aspect-ratio: 16/9;
    display: flex;
    align-items: center;
    justify-content: center;
}

.showcase-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.showcase-placeholder {
    text-align: center;
    color: var(--text-gray);
}

.showcase-placeholder-icon {
    font-size: 64px;
    margin-bottom: 20px;
    opacity: 0.5;
}

.showcase-content h2 {
    font-size: 36px;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.showcase-content p {
    font-size: 18px;
    color: var(--text-gray);
    margin-bottom: 30px;
}

.feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    background: rgba(46, 125, 50, 0.1);
    color: var(--primary-color);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
}

/* 功能特性区 */
.features {
    padding: 80px 20px;
    background: var(--bg-light);
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 36px;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.section-title p {
    font-size: 18px;
    color: var(--text-gray);
}

.features-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--bg-white);
    padding: 40px 30px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: all 0.3s;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 36px;
    color: white;
}

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

.feature-card p {
    color: var(--text-gray);
    line-height: 1.6;
}

/* 下载页面特殊样式 */
.download-section {
    padding: 60px 20px;
    background: var(--bg-white);
}

.download-container {
    max-width: 1000px;
    margin: 0 auto;
}

.version-card {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 20px;
    padding: 40px;
    margin-bottom: 30px;
    border: 2px solid var(--border-color);
    transition: all 0.3s;
}

.version-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 10px 40px rgba(46, 125, 50, 0.1);
}

.version-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 20px;
}

.version-title {
    font-size: 28px;
    color: var(--text-dark);
}

.version-badge {
    background: var(--accent-color);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
}

.version-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-gray);
}

.info-item strong {
    color: var(--text-dark);
}

.download-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
}

.btn-download {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 24px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    color: white;
}

.btn-kuaik {
    background: #00BFFF;
}

.btn-baidu {
    background: #2932E1;
}

.btn-xunlei {
    background: #0099FF;
}

.btn-download:hover {
    transform: translateY(-2px);
    filter: brightness(1.1);
}

/* 子页面导航 */
.sub-nav {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 0;
}

.sub-nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    gap: 30px;
    overflow-x: auto;
}

.sub-nav a {
    color: var(--text-gray);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 20px;
    transition: all 0.3s;
    white-space: nowrap;
}

.sub-nav a:hover,
.sub-nav a.active {
    color: var(--primary-color);
    background: rgba(46, 125, 50, 0.1);
}

/* 内容页面样式 */
.content-page {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px;
    background: var(--bg-white);
    min-height: 60vh;
}

.content-page h1 {
    font-size: 36px;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.content-page h2 {
    font-size: 24px;
    margin: 40px 0 20px;
    color: var(--text-dark);
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-color);
}

.content-page h3 {
    font-size: 20px;
    margin: 30px 0 15px;
    color: var(--text-dark);
}

.content-page p {
    margin-bottom: 20px;
    line-height: 1.8;
    color: var(--text-gray);
}

.content-page ul,
.content-page ol {
    margin-bottom: 20px;
    padding-left: 30px;
}

.content-page li {
    margin-bottom: 10px;
    line-height: 1.8;
}

.content-page a {
    color: var(--primary-color);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: all 0.3s;
}

.content-page a:hover {
    border-bottom-color: var(--primary-color);
}

/* 免责声明 */
.disclaimer {
    background: #FFF3E0;
    border-left: 4px solid var(--accent-color);
    padding: 20px;
    margin: 30px 0;
    border-radius: 0 8px 8px 0;
}

.disclaimer h3 {
    color: var(--accent-color);
    margin-bottom: 10px;
}

.disclaimer p {
    color: #E65100;
    font-size: 14px;
    margin: 0;
}

/* 面包屑导航 */
.breadcrumb {
    background: var(--bg-light);
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.breadcrumb a {
    color: var(--text-gray);
    text-decoration: none;
}

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

.breadcrumb span {
    margin: 0 10px;
    color: var(--text-gray);
}

/* 页脚 */
.footer {
    background: var(--text-dark);
    color: rgba(255,255,255,0.8);
    padding: 60px 20px 30px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    color: white;
    margin-bottom: 20px;
    font-size: 18px;
}

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

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

.footer-section a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 14px;
    color: rgba(255,255,255,0.5);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--primary-color);
        flex-direction: column;
        padding: 20px;
        gap: 10px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    }

    .nav-menu.active {
        display: flex;
    }

    .menu-toggle {
        display: flex;
    }

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

    .hero .subtitle {
        font-size: 16px;
    }

    .showcase-container {
        grid-template-columns: 1fr;
    }

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

    .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }

    .version-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .download-buttons {
        grid-template-columns: 1fr;
    }

    .content-page h1 {
        font-size: 28px;
    }
}

/* FAQ样式 */
.faq-item {
    background: var(--bg-light);
    border-radius: 12px;
    margin-bottom: 20px;
    overflow: hidden;
}

.faq-question {
    padding: 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--text-dark);
    transition: background 0.3s;
}

.faq-question:hover {
    background: rgba(46, 125, 50, 0.05);
}

.faq-answer {
    padding: 0 20px 20px;
    color: var(--text-gray);
    display: none;
}

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

.faq-icon {
    transition: transform 0.3s;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}