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

:root {
    --primary-color: #1e3a5f;
    --primary-dark: #0f2744;
    --primary-light: #2d5a8a;
    --accent-color: #e8a838;
    --accent-hover: #f0b848;
    --text-dark: #1a1a2e;
    --text-medium: #4a4a5a;
    --text-light: #7a7a8a;
    --bg-white: #ffffff;
    --bg-light: #f5f7fa;
    --bg-gray: #e8ecf0;
    --border-color: #d0d5da;
    --success-color: #28a745;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    --shadow-xl: 0 16px 40px rgba(0,0,0,0.15);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.7;
    color: var(--text-dark);
    background: var(--bg-light);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 24px;
}

.container-fluid {
    max-width: 100%;
    padding: 0 32px;
}

/* ========== 顶部导航 ========== */
.top-bar {
    background: var(--primary-dark);
    padding: 10px 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-bar-left {
    display: flex;
    gap: 32px;
}

.top-bar-left span {
    color: rgba(255,255,255,0.85);
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.top-bar-left i {
    color: var(--accent-color);
}

.top-bar-right {
    display: flex;
    gap: 16px;
}

.top-bar-right a {
    color: rgba(255,255,255,0.85);
    font-size: 13px;
    padding: 4px 12px;
    border-radius: 4px;
    transition: var(--transition);
}

.top-bar-right a:hover {
    background: rgba(255,255,255,0.1);
    color: #fff;
}

.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-lg);
}

.header-main {
    padding: 18px 0;
}

.header-main .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 14px;
}

.logo-icon {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-hover) 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    font-weight: bold;
    color: var(--primary-dark);
    box-shadow: 0 4px 12px rgba(232, 168, 56, 0.3);
}

.logo-text h1 {
    font-size: 26px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 1px;
}

.logo-text span {
    font-size: 12px;
    color: rgba(255,255,255,0.7);
    letter-spacing: 3px;
    text-transform: uppercase;
}

.main-nav {
    display: flex;
    gap: 6px;
}

.main-nav > li {
    position: relative;
}

.main-nav > li > a {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 12px 18px;
    color: rgba(255,255,255,0.9);
    font-size: 15px;
    font-weight: 500;
    border-radius: 6px;
    transition: var(--transition);
}

.main-nav > li > a:hover,
.main-nav > li > a.active {
    background: rgba(255,255,255,0.15);
    color: #fff;
}

.main-nav > li > a i {
    font-size: 10px;
    transition: var(--transition);
}

.main-nav > li:hover > a i {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 240px;
    background: #fff;
    border-radius: 8px;
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    padding: 8px 0;
    z-index: 100;
}

.main-nav > li:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li a {
    display: block;
    padding: 12px 20px;
    color: var(--text-medium);
    font-size: 14px;
    transition: var(--transition);
}

.dropdown-menu li a:hover {
    background: var(--bg-light);
    color: var(--primary-color);
    padding-left: 26px;
}

.header-search {
    position: relative;
    display: flex;
    align-items: center;
}

.header-search input {
    width: 280px;
    padding: 12px 50px 12px 18px;
    border: none;
    border-radius: 8px;
    background: rgba(255,255,255,0.15);
    color: #fff;
    font-size: 14px;
    transition: var(--transition);
}

.header-search input::placeholder {
    color: rgba(255,255,255,0.6);
}

.header-search input:focus {
    outline: none;
    background: rgba(255,255,255,0.25);
    width: 320px;
}

.header-search button {
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%);
    padding: 8px 16px;
    background: var(--accent-color);
    color: var(--primary-dark);
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.header-search button:hover {
    background: var(--accent-hover);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 26px;
    cursor: pointer;
    padding: 8px;
}

/* ========== Banner区域 ========== */
.banner {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='80' height='80' viewBox='0 0 80 80' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M50 50c0-5.523 4.477-10 10-10s10 4.477 10 10-4.477 10-10 10c0 5.523-4.477 10-10 10s-10-4.477-10-10 4.477-10 10-10zM10 10c0-5.523 4.477-10 10-10s10 4.477 10 10-4.477 10-10 10c0 5.523-4.477 10-10 10S0 25.523 0 20s4.477-10 10-10zm10 8c4.418 0 8-3.582 8-8s-3.582-8-8-8-8 3.582-8 8 3.582 8 8 8zm40 40c4.418 0 8-3.582 8-8s-3.582-8-8-8-8 3.582-8 8 3.582 8 8 8z' /%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.banner .container {
    position: relative;
    z-index: 1;
}

.banner-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.banner-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(232, 168, 56, 0.2);
    border: 1px solid var(--accent-color);
    border-radius: 30px;
    color: var(--accent-color);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
}

.banner-title {
    font-size: 52px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
    line-height: 1.3;
}

.banner-title span {
    color: var(--accent-color);
}

.banner-desc {
    font-size: 18px;
    color: rgba(255,255,255,0.85);
    margin-bottom: 40px;
    line-height: 1.8;
}

.banner-search {
    max-width: 700px;
    margin: 0 auto 48px;
    position: relative;
    display: flex;
    background: #fff;
    border-radius: 12px;
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.banner-search input {
    flex: 1;
    padding: 20px 24px;
    border: none;
    font-size: 16px;
    color: var(--text-dark);
}

.banner-search input:focus {
    outline: none;
}

.banner-search select {
    padding: 0 20px;
    border: none;
    border-left: 1px solid var(--border-color);
    background: transparent;
    font-size: 15px;
    color: var(--text-medium);
    cursor: pointer;
    min-width: 140px;
}

.banner-search button {
    padding: 20px 36px;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-hover) 100%);
    color: var(--primary-dark);
    border: none;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.banner-search button:hover {
    opacity: 0.9;
}

.banner-stats {
    display: flex;
    justify-content: center;
    gap: 80px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 42px;
    font-weight: 700;
    color: var(--accent-color);
    display: block;
    line-height: 1;
}

.stat-label {
    font-size: 14px;
    color: rgba(255,255,255,0.75);
    margin-top: 8px;
}

/* ========== 分类导航区块 ========== */
.category-section {
    padding: 80px 0;
    background: var(--bg-white);
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.section-header p {
    font-size: 16px;
    color: var(--text-medium);
    max-width: 600px;
    margin: 0 auto;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.category-block {
    background: var(--bg-light);
    border-radius: 16px;
    padding: 32px 28px;
    text-align: center;
    border: 2px solid transparent;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.category-block::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    transform: scaleX(0);
    transition: var(--transition);
}

.category-block:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.category-block:hover::before {
    transform: scaleX(1);
}

.category-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    transition: var(--transition);
}

.category-block:hover .category-icon {
    transform: scale(1.1);
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-hover) 100%);
}

.category-block h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.category-block p {
    font-size: 14px;
    color: var(--text-medium);
    margin-bottom: 16px;
}

.category-count {
    display: inline-block;
    padding: 4px 14px;
    background: var(--primary-color);
    color: #fff;
    font-size: 13px;
    border-radius: 20px;
}

/* ========== 提示词列表 ========== */
.prompt-section {
    padding: 80px 0;
    background: var(--bg-light);
}

.prompt-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

.prompt-header h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-dark);
    position: relative;
    padding-left: 20px;
}

.prompt-header h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 5px;
    height: 28px;
    background: linear-gradient(180deg, var(--accent-color), var(--primary-color));
    border-radius: 3px;
}

.filter-tabs {
    display: flex;
    gap: 12px;
}

.filter-tab {
    padding: 10px 20px;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    color: var(--text-medium);
    cursor: pointer;
    transition: var(--transition);
}

.filter-tab:hover,
.filter-tab.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
}

.prompt-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.prompt-card {
    background: var(--bg-white);
    border-radius: 12px;
    padding: 28px 32px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 24px;
}

.prompt-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-md);
}

.prompt-info {
    flex: 1;
}

.prompt-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 12px;
}

.prompt-category {
    display: inline-block;
    padding: 4px 12px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: #fff;
    font-size: 12px;
    border-radius: 4px;
}

.prompt-tag {
    display: inline-block;
    padding: 3px 10px;
    background: var(--bg-light);
    color: var(--text-medium);
    font-size: 12px;
    border-radius: 4px;
}

.prompt-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 10px;
    line-height: 1.5;
}

.prompt-card:hover .prompt-title {
    color: var(--primary-color);
}

.prompt-desc {
    font-size: 15px;
    color: var(--text-medium);
    line-height: 1.7;
    margin-bottom: 16px;
}

.prompt-preview {
    background: var(--bg-light);
    border-radius: 8px;
    padding: 16px 20px;
    font-size: 14px;
    color: var(--text-dark);
    line-height: 1.6;
    border-left: 3px solid var(--accent-color);
}

.prompt-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    flex-shrink: 0;
}

.btn-copy {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-hover));
    color: var(--primary-dark);
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-copy:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-detail {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 12px 28px;
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-detail:hover {
    background: var(--primary-color);
    color: #fff;
}

/* ========== 分页 ========== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 48px;
}

.pagination a,
.pagination span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 16px;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 15px;
    color: var(--text-medium);
    transition: var(--transition);
}

.pagination a:hover,
.pagination span.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
}

.pagination .disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ========== 详情页 ========== */
.detail-section {
    padding: 60px 0;
    background: var(--bg-light);
}

.detail-container {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 40px;
}

.detail-main {
    background: var(--bg-white);
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--shadow-sm);
}

.detail-header {
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 2px solid var(--border-color);
}

.detail-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.detail-category {
    display: inline-block;
    padding: 6px 16px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: #fff;
    font-size: 13px;
    border-radius: 6px;
}

.detail-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-dark);
    line-height: 1.4;
    margin-bottom: 16px;
}

.detail-info {
    display: flex;
    gap: 24px;
    font-size: 14px;
    color: var(--text-light);
}

.detail-info span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.detail-content h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 36px 0 20px;
    padding-left: 16px;
    border-left: 4px solid var(--accent-color);
}

.detail-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 28px 0 16px;
}

.detail-content p {
    font-size: 16px;
    color: var(--text-medium);
    line-height: 1.9;
    margin-bottom: 20px;
}

.detail-content ul,
.detail-content ol {
    margin: 20px 0;
    padding-left: 24px;
}

.detail-content li {
    font-size: 16px;
    color: var(--text-medium);
    line-height: 1.8;
    margin-bottom: 10px;
    list-style: disc;
}

.detail-content ol li {
    list-style: decimal;
}

.prompt-box {
    background: var(--primary-dark);
    border-radius: 12px;
    padding: 28px;
    margin: 28px 0;
    position: relative;
}

.prompt-box-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.prompt-box-title {
    font-size: 14px;
    color: var(--accent-color);
    font-weight: 600;
}

.prompt-box-copy {
    padding: 8px 20px;
    background: var(--accent-color);
    color: var(--primary-dark);
    border: none;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.prompt-box-copy:hover {
    background: var(--accent-hover);
}

.prompt-box-content {
    font-size: 15px;
    color: #fff;
    line-height: 1.8;
    white-space: pre-wrap;
    font-family: 'Consolas', 'Monaco', monospace;
}

.example-box {
    background: var(--bg-light);
    border-radius: 12px;
    padding: 24px;
    margin: 24px 0;
    border-left: 4px solid var(--primary-color);
}

.example-box h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.example-box p {
    font-size: 15px;
    color: var(--text-medium);
    margin-bottom: 0;
}

/* ========== 侧边栏 ========== */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.sidebar-widget {
    background: var(--bg-white);
    border-radius: 12px;
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

.sidebar-widget h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border-color);
    position: relative;
}

.sidebar-widget h3::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 50px;
    height: 2px;
    background: var(--accent-color);
}

.toc-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toc-list a {
    display: block;
    padding: 10px 14px;
    font-size: 14px;
    color: var(--text-medium);
    border-radius: 6px;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.toc-list a:hover,
.toc-list a.active {
    background: var(--bg-light);
    color: var(--primary-color);
    border-left-color: var(--accent-color);
}

.related-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.related-item {
    display: flex;
    gap: 12px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.related-item:last-child {
    padding-bottom: 0;
    border-bottom: none;
}

.related-item h4 {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-dark);
    line-height: 1.5;
    margin-bottom: 6px;
    transition: var(--transition);
}

.related-item:hover h4 {
    color: var(--primary-color);
}

.related-item span {
    font-size: 12px;
    color: var(--text-light);
}

/* ========== 面包屑导航 ========== */
.breadcrumb {
    background: var(--bg-white);
    padding: 16px 0;
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.breadcrumb-list li {
    display: flex;
    align-items: center;
    gap: 8px;
}

.breadcrumb-list li a {
    color: var(--text-medium);
}

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

.breadcrumb-list li.active {
    color: var(--text-dark);
    font-weight: 500;
}

.breadcrumb-list li i {
    font-size: 10px;
    color: var(--text-light);
}

/* ========== 页面头部 ========== */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    padding: 60px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='80' height='80' viewBox='0 0 80 80' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M50 50c0-5.523 4.477-10 10-10s10 4.477 10 10-4.477 10-10 10c0 5.523-4.477 10-10 10s-10-4.477-10-10 4.477-10 10-10zM10 10c0-5.523 4.477-10 10-10s10 4.477 10 10-4.477 10-10 10c0 5.523-4.477 10-10 10S0 25.523 0 20s4.477-10 10-10zm10 8c4.418 0 8-3.582 8-8s-3.582-8-8-8-8 3.582-8 8 3.582 8 8 8zm40 40c4.418 0 8-3.582 8-8s-3.582-8-8-8-8 3.582-8 8 3.582 8 8 8z' /%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.page-header .container {
    position: relative;
    z-index: 1;
}

.page-title {
    font-size: 42px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
}

.page-desc {
    font-size: 16px;
    color: rgba(255,255,255,0.85);
    max-width: 600px;
    margin: 0 auto;
}

/* ========== 页脚 ========== */
.footer {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    color: #fff;
}

.footer-top {
    padding: 60px 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 48px;
}

.footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-brand .logo-icon {
    width: 48px;
    height: 48px;
    font-size: 22px;
}

.footer-brand .logo-text {
    font-size: 22px;
    font-weight: 700;
}

.footer-brand p {
    font-size: 14px;
    color: rgba(255,255,255,0.75);
    line-height: 1.8;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.1);
    border-radius: 8px;
    color: #fff;
    font-size: 16px;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--accent-color);
    color: var(--primary-dark);
}

.footer-column h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 24px;
    position: relative;
    padding-bottom: 12px;
}

.footer-column h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 36px;
    height: 2px;
    background: var(--accent-color);
}

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column ul li a {
    font-size: 14px;
    color: rgba(255,255,255,0.75);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-column ul li a:hover {
    color: var(--accent-color);
    padding-left: 6px;
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
}

.footer-bottom a {
    color: var(--accent-color);
}

/* ========== 移动端菜单 ========== */
.mobile-menu {
    position: fixed;
    top: 0;
    left: -100%;
    width: 300px;
    height: 100vh;
    background: #fff;
    z-index: 2000;
    transition: var(--transition);
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
}

.mobile-menu.active {
    left: 0;
}

.mobile-menu-header {
    padding: 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.mobile-menu-header .logo-text {
    color: #fff;
    font-size: 20px;
    font-weight: 700;
}

.mobile-menu-close {
    background: none;
    border: none;
    color: #fff;
    font-size: 26px;
    cursor: pointer;
}

.mobile-menu-nav {
    padding: 20px;
}

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

.mobile-menu-nav li a {
    display: block;
    padding: 14px 0;
    font-size: 15px;
    color: var(--text-dark);
    font-weight: 500;
}

.mobile-menu-nav li a:hover {
    color: var(--primary-color);
}

.mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.mobile-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ========== 回到顶部 ========== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 22px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* ========== 复制成功提示 ========== */
.copy-toast {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    background: var(--primary-dark);
    color: #fff;
    padding: 16px 32px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 500;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 3000;
    box-shadow: var(--shadow-xl);
}

.copy-toast.show {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

/* ========== 响应式设计 ========== */
@media (max-width: 1200px) {
    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 32px;
    }
    
    .footer-brand {
        grid-column: span 3;
    }
}

@media (max-width: 1024px) {
    .category-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .detail-container {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        display: none;
    }
}

@media (max-width: 768px) {
    .top-bar {
        display: none;
    }
    
    .main-nav {
        display: none;
    }
    
    .header-search {
        display: none;
    }
    
    .mobile-toggle {
        display: block;
    }
    
    .banner {
        padding: 60px 0;
    }
    
    .banner-title {
        font-size: 32px;
    }
    
    .banner-desc {
        font-size: 16px;
    }
    
    .banner-search {
        flex-direction: column;
    }
    
    .banner-search select {
        border-left: none;
        border-top: 1px solid var(--border-color);
        padding: 16px 24px;
    }
    
    .banner-search button {
        padding: 16px;
    }
    
    .banner-stats {
        gap: 40px;
    }
    
    .stat-number {
        font-size: 32px;
    }
    
    .category-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .prompt-card {
        flex-direction: column;
    }
    
    .prompt-actions {
        flex-direction: row;
        width: 100%;
    }
    
    .btn-copy,
    .btn-detail {
        flex: 1;
    }
    
    .filter-tabs {
        flex-wrap: wrap;
    }
    
    .page-title {
        font-size: 32px;
    }
    
    .detail-title {
        font-size: 26px;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-brand {
        grid-column: span 2;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .banner-title {
        font-size: 26px;
    }
    
    .category-grid {
        grid-template-columns: 1fr;
    }
    
    .prompt-card {
        padding: 20px;
    }
    
    .detail-main {
        padding: 24px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-brand {
        grid-column: span 1;
    }
}