/* ===== 全局基础样式 ===== */
:root {
    --primary: #4f8ef7;
    --primary-dark: #3a6fd8;
    --primary-light: #6ba3ff;
    --accent: #f55d5d;
    --accent-dark: #e04444;
    --success: #2ecc71;
    --warning: #f39c12;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-muted: #a0aec0;
    --bg-main: #f0f4f8;
    --bg-card: #ffffff;
    --bg-card-hover: #f7fafc;
    --border-light: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 14px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 30px rgba(0,0,0,0.1);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 夜间模式变量 */
body.dark-mode {
    --text-primary: #e2e8f0;
    --text-secondary: #a0aec0;
    --text-muted: #718096;
    --bg-main: #131920;
    --bg-card: #1e2a36;
    --bg-card-hover: #243447;
    --border-light: #2d3e50;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.2);
    --shadow-md: 0 4px 14px rgba(0,0,0,0.25);
    --shadow-lg: 0 10px 30px rgba(0,0,0,0.35);
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-main);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 4px;
    transition: var(--transition);
}
::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
}

/* 选中文字样式 */
::selection {
    background: rgba(79, 142, 247, 0.2);
    color: var(--primary-dark);
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 20px;
    animation: fadeInUp 0.5s ease;
}

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

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* ===== 首页 Header ===== */
.header {
    text-align: center;
    margin-bottom: 40px;
    padding-top: 70px;
}
.header h1 {
    font-size: 3.2em;
    background: linear-gradient(135deg, var(--primary), #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
    font-weight: 800;
    letter-spacing: 2px;
}
.header p {
    font-size: 1.15em;
    color: var(--text-muted);
    margin-bottom: 30px;
    font-weight: 400;
    letter-spacing: 0.5px;
}

/* ===== 搜索表单 ===== */
.search-form {
    max-width: 680px;
    margin: 0 auto;
    background-color: var(--bg-card);
    padding: 32px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}
.search-form::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), #8b5cf6, var(--accent), var(--primary));
    background-size: 300% 100%;
    animation: shimmer 4s ease infinite;
}

.search-submit-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: 46px;
    padding: 0 28px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.search-submit-btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
    opacity: 0;
    transition: var(--transition);
}
.search-submit-btn:hover {
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 142, 247, 0.35);
}
.search-submit-btn:hover::after {
    opacity: 1;
}
.search-submit-btn:active {
    transform: translateY(0);
}

/* ===== 首页筛选按钮样式 ===== */
.search-form .category-buttons {
    margin-top: 22px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.search-form .category-buttons span {
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.9em;
}
.search-form .category-buttons a {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 7px 14px;
    background-color: var(--bg-main);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 20px;
    font-size: 0.85em;
    font-weight: 500;
    transition: var(--transition);
    border: 1.5px solid transparent;
}
.search-form .category-buttons a:hover {
    background-color: rgba(79, 142, 247, 0.08);
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-1px);
}
.search-form .category-buttons a.layui-btn-normal {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border-color: transparent;
    box-shadow: 0 2px 8px rgba(79, 142, 247, 0.3);
}
.search-form .category-buttons a.layui-btn-normal:hover {
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    color: white;
    box-shadow: 0 4px 14px rgba(79, 142, 247, 0.4);
}

/* ===== 页脚 ===== */
.footer {
    text-align: center;
    margin-top: 50px;
    padding: 20px 0;
    color: var(--text-muted);
    font-size: 0.9em;
}
.footer p {
    margin: 0;
}
.tips {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9em;
    margin-top: 20px;
}

/* ===== 免责声明 ===== */
.disclaimer {
    text-align: center;
    margin-top: 40px;
    padding: 28px 30px;
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    color: var(--text-muted);
    font-size: 0.9em;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
}
.disclaimer h3 {
    margin-bottom: 12px;
    color: var(--text-primary);
    font-size: 1.05em;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.disclaimer h3::before {
    content: "⚠️";
    font-size: 1.2em;
}
.disclaimer p {
    line-height: 1.8;
}

/* ===== 分页样式 ===== */
.pagination {
    display: flex;
    justify-content: center;
    margin-top: 30px;
    margin-bottom: 40px;
}
.pagination .layui-laypage {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    background-color: transparent !important;
    border: none !important;
}
.pagination .layui-laypage a,
.pagination .layui-laypage span {
    height: 38px;
    line-height: 38px;
    padding: 0 14px;
    background-color: var(--bg-card);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    margin: 0;
}
.pagination .layui-laypage a:hover {
    background-color: rgba(79, 142, 247, 0.06);
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: 0 2px 8px rgba(79, 142, 247, 0.15);
}
.pagination .layui-laypage .layui-laypage-curr {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
    color: white !important;
    border-color: transparent !important;
    box-shadow: 0 3px 10px rgba(79, 142, 247, 0.3) !important;
}
.pagination .layui-laypage .layui-laypage-btn {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
    color: white !important;
    border-color: transparent !important;
    box-shadow: 0 3px 10px rgba(79, 142, 247, 0.3) !important;
    border-radius: var(--radius-sm) !important;
    height: 38px !important;
    line-height: 38px !important;
    padding: 0 18px !important;
    font-weight: 500 !important;
    transition: var(--transition) !important;
}
.pagination .layui-laypage .layui-laypage-btn:hover {
    background: linear-gradient(135deg, var(--primary-light), var(--primary)) !important;
    box-shadow: 0 6px 16px rgba(79, 142, 247, 0.4) !important;
    transform: translateY(-1px) !important;
}
.pagination .layui-laypage .layui-laypage-skip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-left: 10px;
    background-color: transparent !important;
    border: none !important;
}
.pagination .layui-laypage .layui-laypage-skip .layui-input {
    height: 38px;
    line-height: 38px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
    width: 55px;
    text-align: center;
    background-color: var(--bg-card);
}

/* ===== 顶部控制栏 ===== */
.header-controls {
    position: fixed;
    top: 16px;
    right: 20px;
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 10px;
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 8px 14px;
    border-radius: 50px;
    box-shadow: 0 2px 16px rgba(0,0,0,0.08);
    border: 1px solid rgba(255,255,255,0.5);
    transition: var(--transition);
}
.header-controls:hover {
    box-shadow: 0 4px 20px rgba(0,0,0,0.12);
}

.mode-toggle {
    background-color: transparent;
    color: var(--text-secondary);
    padding: 8px;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
}
.mode-toggle:hover {
    background-color: rgba(79, 142, 247, 0.1);
    color: var(--primary);
    transform: rotate(15deg);
}

.language-dropdown {
    position: relative;
    display: inline-block;
}
.language-btn {
    background-color: transparent;
    color: var(--primary);
    padding: 6px 10px;
    border: 1.5px solid var(--primary);
    border-radius: 50px;
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: var(--transition);
    font-weight: 600;
}
.language-btn:hover {
    background-color: rgba(79, 142, 247, 0.08);
    box-shadow: 0 2px 8px rgba(79, 142, 247, 0.2);
}
.language-btn i {
    transition: transform 0.3s ease;
}
.language-btn:hover i.layui-icon-down {
    transform: translateY(1px);
}
.language-menu {
    position: absolute;
    right: 0;
    top: calc(100% + 8px);
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    min-width: 120px;
    z-index: 1001;
    border: 1px solid var(--border-light);
    animation: fadeInUp 0.2s ease;
}
.language-menu a {
    display: block;
    padding: 10px 18px;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 14px;
    transition: var(--transition);
    border-bottom: 1px solid var(--border-light);
}
.language-menu a:last-child {
    border-bottom: none;
}
.language-menu a:hover {
    background-color: rgba(79, 142, 247, 0.06);
    color: var(--primary);
    padding-left: 22px;
}
.language-menu a.active {
    background-color: rgba(79, 142, 247, 0.08);
    color: var(--primary);
    font-weight: 600;
    padding-left: 22px;
}
.language-menu a.active::before {
    content: "✓";
    margin-right: 8px;
    font-size: 12px;
}

/* ===== 夜间模式特殊样式 ===== */
body.dark-mode {
    background-color: var(--bg-main);
    color: var(--text-primary);
}
body.dark-mode .container {
    background-color: transparent;
}
body.dark-mode .header h1 {
    background: linear-gradient(135deg, var(--primary-light), #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
body.dark-mode .header p {
    color: var(--text-muted);
}
body.dark-mode .search-form {
    background-color: var(--bg-card);
    border-color: var(--border-light);
    box-shadow: var(--shadow-lg);
}
body.dark-mode .search-form input {
    background-color: rgba(0,0,0,0.2);
    color: var(--text-primary);
    border: 1px solid var(--border-light);
}
body.dark-mode .search-form input::placeholder {
    color: var(--text-muted);
}
body.dark-mode .search-submit-btn {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}
body.dark-mode .search-submit-btn:hover {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
}
body.dark-mode .search-form .category-buttons span {
    color: var(--text-muted);
}
body.dark-mode .search-form .category-buttons a {
    background-color: rgba(0,0,0,0.2);
    color: var(--text-muted);
    border-color: var(--border-light);
}
body.dark-mode .search-form .category-buttons a:hover {
    background-color: rgba(79, 142, 247, 0.12);
    border-color: var(--primary);
    color: var(--primary-light);
}
body.dark-mode .search-form .category-buttons a.layui-btn-normal {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: white;
}
body.dark-mode .search-form .category-buttons a.layui-btn-normal:hover {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
}
body.dark-mode .layui-btn {
    background-color: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-light);
}
body.dark-mode .layui-btn:hover {
    background-color: var(--bg-card-hover);
}
body.dark-mode .tips {
    color: var(--text-muted);
}
body.dark-mode .disclaimer {
    background-color: var(--bg-card);
    color: var(--text-muted);
    border-color: var(--border-light);
    box-shadow: var(--shadow-sm);
}
body.dark-mode .disclaimer h3 {
    color: var(--text-primary);
}
body.dark-mode .footer {
    color: var(--text-muted);
}
body.dark-mode .header-controls {
    background-color: rgba(30, 42, 54, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 2px 16px rgba(0,0,0,0.3);
    border: 1px solid rgba(255,255,255,0.08);
}
body.dark-mode .header-controls:hover {
    box-shadow: 0 4px 24px rgba(0,0,0,0.4);
}
body.dark-mode .mode-toggle {
    background-color: transparent;
    color: var(--text-secondary);
}
body.dark-mode .mode-toggle:hover {
    background-color: rgba(79, 142, 247, 0.15);
    color: var(--primary-light);
}
body.dark-mode .layui-icon {
    color: inherit !important;
}
body.dark-mode .language-btn {
    background-color: transparent;
    color: var(--primary-light);
    border-color: var(--primary-dark);
}
body.dark-mode .language-btn:hover {
    background-color: rgba(79, 142, 247, 0.12);
}
body.dark-mode .language-menu {
    background-color: var(--bg-card);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-lg);
}
body.dark-mode .language-menu a {
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-light);
}
body.dark-mode .language-menu a:hover {
    background-color: rgba(79, 142, 247, 0.1);
    color: var(--primary-light);
}
body.dark-mode .language-menu a.active {
    background-color: rgba(79, 142, 247, 0.12);
    color: var(--primary-light);
}
body.dark-mode .pagination .layui-laypage {
    background-color: transparent !important;
    border: none !important;
}
body.dark-mode .pagination .layui-laypage a,
body.dark-mode .pagination .layui-laypage span {
    background-color: var(--bg-card);
    color: var(--text-muted);
    border-color: var(--border-light);
    box-shadow: var(--shadow-sm);
}
body.dark-mode .pagination .layui-laypage a:hover {
    background-color: rgba(79, 142, 247, 0.1);
    border-color: var(--primary-dark);
    color: var(--primary-light);
}
body.dark-mode .pagination .layui-laypage .layui-laypage-curr {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary)) !important;
    color: white !important;
    border-color: transparent !important;
}
body.dark-mode .pagination .layui-laypage .layui-laypage-btn {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary)) !important;
    color: white !important;
    border-color: transparent !important;
    border-radius: var(--radius-sm) !important;
}
body.dark-mode .pagination .layui-laypage .layui-laypage-btn:hover {
    background: linear-gradient(135deg, var(--primary), var(--primary-light)) !important;
}
body.dark-mode .pagination .layui-laypage .layui-laypage-skip {
    background-color: transparent !important;
    border: none !important;
}
body.dark-mode .pagination .layui-laypage .layui-laypage-skip .layui-input {
    background-color: rgba(0,0,0,0.2);
    color: var(--text-primary);
    border-color: var(--border-light);
}

/* ===== 搜索表单内布局 ===== */
.search-form .form-row {
    display: flex;
    gap: 10px;
    align-items: center;
}
.search-form .form-row .form-input-wrapper {
    flex: 1;
    position: relative;
}
.search-input-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 18px;
    pointer-events: none;
    z-index: 2;
    transition: var(--transition);
}
.search-input-with-icon {
    padding-left: 42px !important;
}
.form-input-wrapper:focus-within .search-input-icon {
    color: var(--primary);
}

/* ===== 响应式设计 ===== */
@media (max-width: 768px) {
    .header {
        padding-top: 80px;
    }
    .header h1 {
        font-size: 1.8em;
    }
    .header-controls {
        top: 10px;
        right: 10px;
        padding: 6px 10px;
        gap: 6px;
        border-radius: 40px;
    }
    .mode-toggle,
    .language-btn {
        padding: 6px;
        font-size: 14px;
    }
    .search-form {
        padding: 20px;
        border-radius: var(--radius-lg);
    }
}