/* style.css - 完整美化版 */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-card: #ffffff;
    --text-primary: #2c3e50;
    --text-secondary: #6c757d;
    --border-color: #e9ecef;
    --gold: #d4af37;
    --gold-light: #f0c674;
    --gold-dark: #b8960c;
    --primary: #4a6fa5;
    --primary-dark: #3a5a8c;
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
    --info: #17a2b8;
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-hover: 0 8px 25px rgba(0,0,0,0.12);
    --radius: 16px;
    --radius-sm: 10px;
}

.dark-mode {
    --bg-primary: #121212;
    --bg-secondary: #1e1e2e;
    --bg-card: #2a2a35;
    --text-primary: #e8e8e8;
    --text-secondary: #a0a0b0;
    --border-color: #3a3a45;
    --shadow: 0 2px 8px rgba(0,0,0,0.3);
    --shadow-hover: 0 8px 25px rgba(0,0,0,0.4);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: all 0.3s ease;
    line-height: 1.6;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========== Header 样式 ========== */
header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo i {
    font-size: 28px;
    color: var(--gold);
}

.logo h1 {
    font-size: 1.5rem;
    background: linear-gradient(135deg, var(--gold), var(--gold-light));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* 桌面导航 */
.desktop-nav ul {
    display: flex;
    list-style: none;
    gap: 28px;
}

.desktop-nav a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: color 0.3s;
    display: flex;
    align-items: center;
    gap: 6px;
}

.desktop-nav a:hover {
    color: var(--gold);
}

/* 移动端菜单 */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-primary);
    padding: 8px;
}

.mobile-nav {
    display: none;
    position: fixed;
    top: 65px;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    z-index: 999;
    box-shadow: var(--shadow);
}

.mobile-nav.active {
    display: block;
}

.mobile-nav ul {
    list-style: none;
}

.mobile-nav li {
    border-bottom: 1px solid var(--border-color);
}

.mobile-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    text-decoration: none;
    color: var(--text-primary);
    font-size: 1rem;
}

.mobile-nav a:active {
    background: var(--gold);
    color: #fff;
}

/* 主题切换 */
.theme-toggle {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    font-size: 1.2rem;
    cursor: pointer;
    color: var(--text-primary);
    padding: 10px;
    border-radius: 50%;
    transition: all 0.3s;
}

.theme-toggle:hover {
    background: var(--gold);
    color: #fff;
    border-color: var(--gold);
}

/* ========== 公告卡片样式 ========== */
.announcement-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    margin: 30px 0;
    overflow: hidden;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--gold);
}

.announcement-card .card-header {
    background: var(--bg-secondary);
    padding: 16px 20px;
    font-weight: bold;
    border-bottom: 1px solid var(--border-color);
}

.announcement-card .card-header i {
    color: var(--gold);
    margin-right: 8px;
}

.announcement-card .card-body {
    padding: 20px;
}

/* Markdown 内容样式 */
.markdown-body {
    font-size: 1rem;
    line-height: 1.7;
}

.markdown-body h1 {
    font-size: 1.8rem;
    margin: 20px 0 15px;
    color: var(--gold);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
}

.markdown-body h2 {
    font-size: 1.5rem;
    margin: 18px 0 12px;
    color: var(--gold);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
}

.markdown-body h3 {
    font-size: 1.25rem;
    margin: 15px 0 10px;
    color: var(--gold-light);
}

.markdown-body p {
    margin: 12px 0;
}

.markdown-body ul, .markdown-body ol {
    margin: 10px 0 10px 25px;
}

.markdown-body li {
    margin: 5px 0;
}

.markdown-body code {
    background: var(--bg-secondary);
    padding: 2px 6px;
    border-radius: 5px;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
    font-size: 0.85em;
    color: var(--gold);
}

.markdown-body pre {
    background: var(--bg-secondary);
    padding: 15px;
    border-radius: 10px;
    overflow-x: auto;
    margin: 15px 0;
}

.markdown-body pre code {
    background: transparent;
    padding: 0;
    color: var(--text-primary);
}

.markdown-body blockquote {
    border-left: 4px solid var(--gold);
    padding-left: 20px;
    margin: 15px 0;
    color: var(--text-secondary);
}

.markdown-body a {
    color: var(--gold);
    text-decoration: none;
}

.markdown-body a:hover {
    text-decoration: underline;
}

.markdown-body table {
    border-collapse: collapse;
    width: 100%;
    margin: 15px 0;
}

.markdown-body th, .markdown-body td {
    border: 1px solid var(--border-color);
    padding: 8px 12px;
    text-align: left;
}

.markdown-body th {
    background: var(--bg-secondary);
}

.markdown-body img {
    max-width: 100%;
    border-radius: 8px;
}

.markdown-body hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 20px 0;
}

/* ========== 软件包网格 ========== */
.packages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
    margin: 30px 0;
}

.package-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 20px;
    transition: all 0.3s;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.package-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.package-version {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--gold);
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--gold);
    display: inline-block;
}

.package-description {
    color: var(--text-secondary);
    margin: 15px 0;
    line-height: 1.6;
    min-height: 70px;
}

.package-meta {
    margin: 12px 0;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.file-size i {
    margin-right: 4px;
}

.download-btn {
    background: linear-gradient(135deg, var(--gold), var(--gold-dark));
    color: #fff;
    border: none;
    padding: 12px 20px;
    border-radius: 40px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    width: 100%;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.download-btn:hover {
    transform: scale(1.02);
    filter: brightness(1.05);
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    background: var(--bg-card);
    border-radius: var(--radius);
}

.empty-state i {
    font-size: 64px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

/* ========== 模态框 ========== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: var(--bg-card);
    padding: 35px;
    border-radius: 24px;
    text-align: center;
    min-width: 280px;
    border: 1px solid var(--gold);
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--gold);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

/* ========== 页脚 ========== */
footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 30px 0;
    margin-top: 50px;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ========== 按钮通用样式 ========== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 30px;
    border: none;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s;
    text-decoration: none;
}

.btn-sm {
    padding: 6px 14px;
    font-size: 0.8rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--gold), var(--gold-dark));
    color: #fff;
}

.btn-primary:hover {
    transform: translateY(-2px);
    filter: brightness(1.05);
}

.btn-danger {
    background: var(--danger);
    color: #fff;
}

.btn-danger:hover {
    background: #c82333;
}

.btn-success {
    background: var(--success);
    color: #fff;
}

/* ========== 提示框 ========== */
.alert {
    padding: 12px 18px;
    border-radius: 12px;
    margin-bottom: 20px;
}

.alert-success {
    background: rgba(40, 167, 69, 0.15);
    color: var(--success);
    border-left: 4px solid var(--success);
}

.alert-error {
    background: rgba(220, 53, 69, 0.15);
    color: var(--danger);
    border-left: 4px solid var(--danger);
}

/* ========== 登录卡片 ========== */
.login-card {
    background: var(--bg-card);
    border-radius: 24px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.login-icon {
    font-size: 48px;
    color: var(--gold);
    margin-bottom: 20px;
}

.input-group {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0 15px;
    margin-bottom: 15px;
}

.input-group i {
    color: var(--gold);
    font-size: 1rem;
}

.input-group input {
    flex: 1;
    padding: 14px 0;
    border: none;
    background: transparent;
    color: var(--text-primary);
    outline: none;
}

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

/* ========== 响应式设计 ========== */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    
    .desktop-nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .packages-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .logo h1 {
        font-size: 1.2rem;
    }
    
    .announcement-card .card-header {
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }
    
    .package-version {
        font-size: 1.1rem;
    }
    
    .markdown-body h1 {
        font-size: 1.5rem;
    }
    
    .markdown-body h2 {
        font-size: 1.3rem;
    }
    
    .markdown-body h3 {
        font-size: 1.1rem;
    }
}

/* 平板设备 */
@media (min-width: 769px) and (max-width: 1024px) {
    .packages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 词典笔等超小屏 */
@media (max-width: 480px) {
    .package-card {
        padding: 16px;
    }
    
    .download-btn {
        padding: 10px 16px;
    }
    
    .modal-content {
        margin: 20px;
        padding: 25px;
    }
    
    .announcement-card .card-body {
        padding: 15px;
    }
    
    .markdown-body {
        font-size: 0.9rem;
    }
}