@font-face {
    font-family: 'ALKATIP Yazma Tom';
    src: url('fonts/ALKATIP Yazma Tom.TTF') format('truetype');
}

/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'ALKATIP Yazma Tom', 'Noto Sans SC', sans-serif;
}

:root {
    /* 主色调更新为更深邃的蓝紫色系 */
    --primary-color: #4f46e5;
    --primary-dark: #3730a3;
    --primary-light: #6366f1;
    --secondary-color: #7c3aed;
    --accent-color: #8b5cf6;
    
    /* 背景色调整为更柔和的渐变 */
    --background-light: #f8faff;
    --background-dark: #eef2ff;
    
    /* 文字颜色调整 */
    --text-primary: #1e1b4b;
    --text-secondary: #3730a3;
    
    /* 边框和阴影效果增强 */
    --border-color: rgba(79, 70, 229, 0.1);
    --shadow-color: rgba(79, 70, 229, 0.15);
    
    /* 新增渐变色 */
    --gradient-primary: linear-gradient(135deg, #4f46e5, #7c3aed);
    --gradient-secondary: linear-gradient(45deg, #3730a3, #6366f1);
    --gradient-accent: linear-gradient(to right, #4f46e5, #8b5cf6);
}

body {
    font-family: 'ALKATIP Yazma Tom', 'Noto Sans SC', sans-serif;
    background: var(--gradient-primary);
    background-attachment: fixed;
    min-height: 100vh;
    padding: 20px;
    color: var(--text-primary);
}

.container {
    max-width: 1800px;
    margin: 0 auto;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.85));
    backdrop-filter: blur(20px);
    padding: 40px 60px;
    position: relative;
    overflow: hidden;
    border-radius: 30px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* 导航栏样式 */
.nav-container {
    margin: -40px -60px 40px -60px;
    padding: 30px 60px;
    width: calc(100% + 120px);
    position: sticky;
    top: 0;
    background: linear-gradient(to right, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.9));
    backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

.nav-wrapper {
    max-width: 1800px;
    margin: 0 auto;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    position: relative;
}

.nav-menu {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 20px;
    width: 100%;
}

.nav-item {
    margin: 0;
    padding: 5px 15px;
    transition: all 0.3s ease;
    border-radius: 15px;
    position: relative;
    background: linear-gradient(to right, rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.6));
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.nav-item:hover {
    background: var(--gradient-primary);
    box-shadow: 0 8px 25px rgba(79, 70, 229, 0.3);
}

.nav-item:hover .nav-link,
.nav-item:hover .nav-link i {
    color: #ffffff;
}

.nav-logo {
    margin-right: auto;
    font-size: 28px;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
}

.nav-logo:hover {
    transform: scale(1.05);
    filter: brightness(1.1);
}

.nav-logo i {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-logo span {
    order: 1;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 18px;
    padding: 12px 5px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-link i {
    color: var(--primary-color);
    transition: all 0.3s ease;
}

.nav-link.active {
    color: var(--primary-color);
    font-weight: 700;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 3px;
    bottom: 0;
    left: 0;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
    border-radius: 3px;
}

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

/* 移动端导航样式 */
@media (max-width: 768px) {
    .container {
        padding: 15px;
        border-radius: 0;
    }

    .mobile-nav-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        width: 100%;
    }

    .nav-wrapper {
        flex-direction: column;
        align-items: flex-end;
    }

    .nav-menu {
        flex-direction: column;
        width: 100%;
        gap: 10px;
        align-items: flex-end;
    }

    .nav-item {
        width: 100%;
        text-align: right;
    }

    .nav-link {
        justify-content: flex-end;
        width: 100%;
    }

    .nav-logo {
        margin-right: 0;
        margin-bottom: 15px;
    }

    .menu-toggle {
        display: block;
        margin-left: auto;
    }
}

/* 平板设备优化 */
@media (min-width: 769px) and (max-width: 1024px) {
    .nav-container {
        padding: 15px 20px;
    }

    .nav-menu {
        gap: 15px;
    }

    .nav-item {
        padding: 5px 10px;
    }

    .nav-link {
        font-size: 16px;
    }
}

/* 大屏幕设备优化 */
@media (min-width: 1440px) {
    .container {
        max-width: 1800px;
        padding: 50px 80px;
    }

    .content {
        padding: 50px 80px;
        margin: 0 -50px;
        width: calc(100% + 100px);
    }

    .nav-container {
        margin: -50px -80px 50px -80px;
        padding: 35px 80px;
        width: calc(100% + 160px);
    }

    .nav-menu {
        gap: 30px;
    }
}

/* 内容区域样式 */
.content {
    padding: 40px 60px;
    min-height: calc(100vh - 200px);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.6));
    backdrop-filter: blur(15px);
    border-radius: 30px;
    border: 1px solid var(--border-color);
    box-shadow: 0 15px 40px var(--shadow-color);
    margin: 0 -40px;
    width: calc(100% + 80px);
}

/* 页面标题样式 */
.page-title {
    color: var(--text-primary);
    text-align: center;
    margin: 0 0 40px 0;
    font-size: 3.2em;
    font-weight: 700;
    letter-spacing: -1px;
    position: relative;
    padding: 20px 0;
    direction: rtl;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 2px 10px rgba(79, 70, 229, 0.1);
}

.page-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 3px;
    box-shadow: 0 2px 10px rgba(79, 70, 229, 0.2);
}

/* 动画效果 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

/* 加载动画 */
.loading {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9999;
    justify-content: center;
    align-items: center;
}

.loading-content {
    background: white;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid #7c4dff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 15px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 底部版权信息样式 */
.footer {
    margin-top: 40px;
    padding: 30px 0;
    background: linear-gradient(to right, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.9));
    backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.05);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    padding: 0 30px;
}

.footer-info {
    display: flex;
    align-items: center;
    gap: 15px;
    color: var(--text-secondary);
    font-size: 14px;
}

.footer-links {
    display: flex;
    align-items: center;
    gap: 15px;
}

.footer-links a {
    color: white;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
    padding: 10px 20px;
    border-radius: 20px;
    background: var(--gradient-primary);
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.2);
}

.footer-links a:hover {
    background: var(--gradient-secondary);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.3);
}

.divider {
    color: rgba(124,77,255,0.3);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 15px;
        border-radius: 0;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    
    .footer-info, .footer-links {
        justify-content: center;
        width: 100%;
    }
    
    .footer {
        margin-top: 30px;
        padding: 20px;
        border-radius: 15px;
    }

    .footer-content {
        padding: 0 15px;
    }

    .footer-links a {
        padding: 6px 12px;
        font-size: 13px;
    }
}

/* 移动端导航样式 */
.mobile-nav-header {
    display: none;
    justify-content: space-between;
    align-items: center;
    padding: 0 10px;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #1a237e;
    font-size: 24px;
    cursor: pointer;
    padding: 10px;
    transition: all 0.3s ease;
}

.menu-toggle:hover {
    color: #7c4dff;
}

.menu-toggle.active {
    color: #7c4dff;
}

@media (max-width: 768px) {
    .mobile-nav-header {
        display: flex;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .nav-wrapper {
        display: none;
        width: 100%;
        padding-top: 20px;
    }
    
    .nav-wrapper.active {
        display: block;
        animation: slideDown 0.3s ease-out forwards;
    }
    
    .nav-menu {
        flex-direction: column;
        gap: 10px;
    }
    
    .nav-item {
        width: 100%;
        margin: 0;
        opacity: 0;
        animation: fadeInUp 0.3s ease-out forwards;
    }
    
    .nav-item:nth-child(1) { animation-delay: 0.1s; }
    .nav-item:nth-child(2) { animation-delay: 0.2s; }
    .nav-item:nth-child(3) { animation-delay: 0.3s; }
    .nav-item:nth-child(4) { animation-delay: 0.4s; }
    
    .nav-link {
        padding: 15px;
        justify-content: space-between;
        background: rgba(124,77,255,0.05);
        border-radius: 10px;
        border: 1px solid rgba(124,77,255,0.1);
    }
    
    .nav-link:hover {
        background: rgba(124,77,255,0.1);
        transform: none;
    }
    
    .nav-link.active {
        background: rgba(124,77,255,0.15);
        border-color: #7c4dff;
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 全局响应式样式 */
@media (max-width: 768px) {
    body {
        padding: 0;
    }
    
    .content {
        padding: 20px;
        margin: 0;
        width: 100%;
        border-radius: 20px;
    }
    
    .page-title {
        font-size: 2em;
        margin-bottom: 30px;
        padding-bottom: 15px;
    }

    /* 搜索表单响应式 */
    .search-form .input-group {
        flex-direction: column;
        padding: 20px;
    }

    .search-input {
        width: 100%;
        margin-bottom: 15px;
        padding: 15px 45px;
        font-size: 14px;
    }

    .search-button {
        width: 100%;
        padding: 15px;
    }

    /* 结果区域响应式 */
    .result-container {
        padding: 20px;
        margin-top: 20px;
    }

    .article-info {
        padding: 20px;
    }

    .account-info {
        flex-direction: column;
        text-align: center;
        padding: 15px;
    }

    .account-avatar-wrapper {
        margin: 0 auto 15px;
    }

    .article-title {
        font-size: 1.4em;
        text-align: center;
    }

    .video-list-header {
        flex-direction: column;
        gap: 15px;
    }

    .video-list-controls {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 10px;
    }

    .video-item {
        flex-direction: column;
        padding: 15px;
    }

    .video-actions {
        width: 100%;
        justify-content: center;
        gap: 10px;
        margin-top: 10px;
    }

    /* 播放器页面响应式 */
    .player-wrapper {
        padding: 15px;
        width: 100%;
    }

    .video-container {
        padding-top: 56.25%;
    }

    .player-search {
        padding: 20px;
    }

    /* 使用说明页面响应式 */
    .features-section {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .feature-card {
        padding: 20px;
    }

    .usage-steps {
        gap: 15px;
    }

    .step {
        padding: 15px;
    }

    .api-section {
        padding: 20px;
    }

    .code-block {
        padding: 15px;
        overflow-x: auto;
    }

    .code-block pre {
        font-size: 12px;
    }

    /* 关于我们页面响应式 */
    .company-section {
        padding: 20px;
    }

    .product-cards {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .product-card {
        padding: 20px;
    }

    .contact-card {
        flex-direction: column;
        padding: 20px;
        text-align: center;
    }

    .qr-code {
        margin: 0 auto 20px;
    }

    .contact-info {
        align-items: center;
    }

    .contact-item {
        justify-content: center;
    }
}

/* 小屏幕设备优化 */
@media (max-width: 480px) {
    .container {
        padding: 10px;
    }

    .page-title {
        font-size: 1.8em;
    }

    .search-input {
        font-size: 13px;
        padding: 12px 40px;
    }

    .search-button {
        padding: 12px;
        font-size: 14px;
    }

    .video-item {
        padding: 12px;
    }

    .video-actions button,
    .video-actions a {
        padding: 8px 12px;
        font-size: 13px;
    }

    .footer {
        margin-top: 20px;
        padding-top: 10px;
    }

    .footer-content {
        gap: 10px;
    }

    .footer-info,
    .footer-links {
        font-size: 12px;
    }
}

/* 暗色模式支持 */
@media (prefers-color-scheme: dark) {
    :root {
        --background-light: #1e1b4b;
        --background-dark: #0f172a;
        --text-primary: #f8faff;
        --text-secondary: #c7d2fe;
        --border-color: rgba(79, 70, 229, 0.2);
        --shadow-color: rgba(79, 70, 229, 0.15);
    }

    body {
        background: linear-gradient(135deg, #1e1b4b, #0f172a);
    }

    .container,
    .nav-container,
    .content,
    .feature-card,
    .product-card,
    .contact-card,
    .api-section,
    .footer {
        background: linear-gradient(135deg, rgba(30, 27, 75, 0.95), rgba(15, 23, 42, 0.85));
        border-color: rgba(79, 70, 229, 0.2);
    }

    .nav-link,
    .search-input {
        background: rgba(30, 27, 75, 0.8);
        color: var(--text-primary);
    }

    .nav-item {
        background: rgba(30, 27, 75, 0.6);
    }

    .footer-links a {
        background: var(--gradient-primary);
    }
}

/* 按钮样式统一 */
.search-button, .copy-btn, .play-btn {
    background: var(--gradient-primary);
    color: #ffffff;
    border: none;
    border-radius: 10px;
    padding: 12px 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
    font-weight: 600;
    letter-spacing: 0.5px;
}

.search-button:hover, .copy-btn:hover, .play-btn:hover {
    background: var(--gradient-secondary);
    box-shadow: 0 8px 25px rgba(79, 70, 229, 0.4);
    transform: translateY(-3px);
}

/* 输入框样式统一 */
.search-input {
    border: 2px solid rgba(79, 70, 229, 0.2);
    border-radius: 10px;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.9);
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.search-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.15);
}

/* 卡片样式统一 */
.feature-card, .product-card, .contact-card, .api-section {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.85));
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 25px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.feature-card:hover, .product-card:hover, .contact-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 20px 45px rgba(79, 70, 229, 0.2);
    border-color: rgba(79, 70, 229, 0.2);
}

/* 图标颜色统一 */
.nav-link i, .feature-icon i, .product-icon i {
    color: #333;
}

/* 链接颜色统一 */
a {
    color: #333;
    text-decoration: none;
}

a:hover {
    opacity: 0.8;
}

/* 动画效果增强 */
@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.search-button, .copy-btn, .play-btn, .footer-links a {
    background-size: 200% 200%;
    animation: gradientShift 5s ease infinite;
}