:root {
--bg-primary: #ffffff;
--bg-secondary: #f8fafc;
--bg-tertiary: #f1f5f9;
--bg-card: #ffffff;
--text-primary: #0f172a;
--text-secondary: #475569;
--text-tertiary: #94a3b8;
--border-color: #e2e8f0;
--accent: #3b82f6;
--accent-hover: #2563eb;
--accent-light: #eff6ff;
--gradient-start: #3b82f6;
--gradient-end: #8b5cf6;
--success: #10b981;
--warning: #f59e0b;
--danger: #ef4444;
--shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
--shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
--shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
--shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
--radius-sm: 6px;
--radius-md: 10px;
--radius-lg: 16px;
--radius-xl: 24px;
--transition: 0.2s ease;
}
[data-theme="dark"] {
--bg-primary: #0f172a;
--bg-secondary: #1e293b;
--bg-tertiary: #334155;
--bg-card: #1e293b;
--text-primary: #f1f5f9;
--text-secondary: #cbd5e1;
--text-tertiary: #64748b;
--border-color: #334155;
--accent: #60a5fa;
--accent-hover: #3b82f6;
--accent-light: #1e3a5f;
--shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
--shadow-md: 0 4px 6px -1px rgba(0,0,0,0.4);
--shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.4);
--shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.4);
}
*, *::before, *::after {
margin: 0;
padding: 0;
box-sizing: border-box;
}
html {
scroll-behavior: smooth;
font-size: 16px;
}
body {
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
background: var(--bg-secondary);
color: var(--text-primary);
line-height: 1.7;
transition: background var(--transition), color var(--transition);
min-height: 100vh;
}
a {
color: var(--accent);
text-decoration: none;
transition: color var(--transition);
}
a:hover {
color: var(--accent-hover);
}
img {
max-width: 100%;
height: auto;
display: block;
}
.container {
max-width: 1200px;
margin: 0 auto;
padding: 0 20px;
}
.navbar {
background: var(--bg-primary);
border-bottom: 1px solid var(--border-color);
position: sticky;
top: 0;
z-index: 1000;
backdrop-filter: blur(12px);
-webkit-backdrop-filter: blur(12px);
transition: background var(--transition), border-color var(--transition);
}
.navbar .container {
display: flex;
align-items: center;
justify-content: space-between;
height: 64px;
}
.logo {
display: flex;
align-items: center;
gap: 10px;
font-size: 1.4rem;
font-weight: 800;
color: var(--text-primary);
letter-spacing: -0.5px;
}
.logo-subtitle {
font-size: 0.7rem;
font-weight: 400;
color: var(--text-tertiary);
letter-spacing: 0.5px;
padding-left: 8px;
border-left: 1px solid var(--border-color);
white-space: nowrap;
}
.nav-links {
display: flex;
align-items: center;
gap: 8px;
list-style: none;
}
.nav-links a {
padding: 8px 16px;
border-radius: var(--radius-sm);
color: var(--text-secondary);
font-size: 0.9rem;
font-weight: 500;
transition: all var(--transition);
background: transparent;
}
.nav-links a:visited,
.nav-links a:focus,
.nav-links a:focus-visible {
background: transparent;
color: var(--text-secondary);
outline: none;
}
.nav-links a:hover,
.nav-links a.active {
background: var(--accent-light);
color: var(--accent);
}
.nav-links a.active:focus,
.nav-links a.active:focus-visible {
background: var(--accent-light);
color: var(--accent);
outline: none;
}
.nav-actions {
display: flex;
align-items: center;
gap: 12px;
}
.theme-toggle {
background: none;
border: 1px solid var(--border-color);
border-radius: var(--radius-sm);
padding: 8px 12px;
cursor: pointer;
color: var(--text-secondary);
font-size: 1.1rem;
transition: all var(--transition);
display: flex;
align-items: center;
}
.theme-toggle:hover {
border-color: var(--accent);
color: var(--accent);
}
.mobile-menu-btn {
display: none;
background: none;
border: none;
font-size: 1.5rem;
cursor: pointer;
color: var(--text-primary);
padding: 4px;
}
.hero {
background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
color: #fff;
padding: 60px 0;
text-align: center;
position: relative;
overflow: hidden;
}
.hero::before {
content: '';
position: absolute;
top: -50%;
left: -50%;
width: 200%;
height: 200%;
background: radial-gradient(circle at 30% 50%, rgba(255,255,255,0.1) 0%, transparent 50%);
animation: heroPulse 8s ease-in-out infinite;
}
@keyframes heroPulse {
0%, 100% { transform: translate(0, 0); }
50% { transform: translate(5%, 5%); }
}
.hero .container {
position: relative;
z-index: 1;
}
.hero h1 {
font-size: 2.8rem;
font-weight: 800;
margin-bottom: 16px;
letter-spacing: -1px;
line-height: 1.2;
}
.hero p {
font-size: 1.15rem;
opacity: 0.9;
max-width: 600px;
margin: 0 auto 32px;
}
.search-box {
display: flex;
max-width: 520px;
margin: 0 auto;
background: rgba(255,255,255,0.15);
backdrop-filter: blur(8px);
border-radius: 50px;
overflow: hidden;
border: 1px solid rgba(255,255,255,0.2);
}
.search-box input {
flex: 1;
padding: 14px 24px;
border: none;
background: transparent;
color: #fff;
font-size: 1rem;
outline: none;
}
.search-box input::placeholder {
color: rgba(255,255,255,0.6);
}
.search-box button {
padding: 14px 28px;
border: none;
background: #fff;
color: var(--gradient-start);
font-weight: 600;
cursor: pointer;
font-size: 0.95rem;
transition: all var(--transition);
}
.search-box button:hover {
background: var(--accent-light);
}
.category-nav {
padding: 20px 0;
border-bottom: 1px solid var(--border-color);
overflow-x: auto;
-webkit-overflow-scrolling: touch;
}
.category-nav .container {
display: flex;
gap: 10px;
}
.category-pill {
appearance: none;
-webkit-appearance: none;
font-family: inherit;
padding: 8px 20px;
border: 1px solid var(--border-color);
border-radius: 50px;
font-size: 0.9rem;
font-weight: 500;
color: var(--text-secondary);
background: var(--bg-primary);
cursor: pointer;
white-space: nowrap;
transition: all var(--transition);
text-decoration: none;
display: inline-block;
line-height: 1.4;
}
.category-pill:hover,
.category-pill.active {
background: var(--accent);
border-color: var(--accent);
color: #fff;
}
.category-pill:focus,
.category-pill:focus-visible {
outline: none;
background: var(--bg-primary);
border-color: var(--border-color);
color: var(--text-secondary);
}
.category-pill.active:focus,
.category-pill.active:focus-visible {
background: var(--accent);
border-color: var(--accent);
color: #fff;
}
.page-header {
background: var(--bg-primary);
border-bottom: 1px solid var(--border-color);
padding: 40px 0;
text-align: center;
}
.page-header h1 {
font-size: 2rem;
font-weight: 800;
margin-bottom: 8px;
}
.page-header p {
color: var(--text-secondary);
font-size: 1rem;
}
.main-content {
padding: 40px 0;
}
.content-grid {
display: grid;
grid-template-columns: 1fr 340px;
gap: 32px;
align-items: start;
}
@media (max-width: 968px) {
.content-grid {
grid-template-columns: 1fr;
}
}
.article-card {
background: var(--bg-card);
border: 1px solid var(--border-color);
border-radius: var(--radius-lg);
overflow: hidden;
transition: all var(--transition);
margin-bottom: 24px;
}
.article-card:hover {
box-shadow: var(--shadow-lg);
transform: translateY(-2px);
}
.article-card.featured {
border-color: var(--accent);
border-width: 2px;
}
.article-card-body {
padding: 24px;
}
.article-card .category-tag {
display: inline-block;
padding: 4px 12px;
border-radius: 50px;
font-size: 0.78rem;
font-weight: 600;
margin-bottom: 12px;
background: var(--accent-light);
color: var(--accent);
}
.article-card h2 {
font-size: 1.35rem;
font-weight: 700;
margin-bottom: 10px;
line-height: 1.4;
}
.article-card h2 a {
color: var(--text-primary);
transition: color var(--transition);
}
.article-card h2 a:hover {
color: var(--accent);
}
.article-card .excerpt {
color: var(--text-secondary);
font-size: 0.95rem;
line-height: 1.7;
margin-bottom: 16px;
display: -webkit-box;
-webkit-line-clamp: 3;
-webkit-box-orient: vertical;
overflow: hidden;
}
.article-meta {
display: flex;
align-items: center;
gap: 16px;
font-size: 0.85rem;
color: var(--text-tertiary);
}
.article-meta span {
display: flex;
align-items: center;
gap: 4px;
}
.featured-banner {
background: var(--bg-card);
border: 2px solid;
border-image: linear-gradient(135deg, var(--gradient-start), var(--gradient-end)) 1;
border-radius: var(--radius-lg);
padding: 32px;
margin-bottom: 32px;
position: relative;
}
.featured-badge {
position: absolute;
top: -1px;
right: 24px;
background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
color: #fff;
padding: 6px 16px;
border-radius: 0 0 8px 8px;
font-size: 0.8rem;
font-weight: 600;
}
.featured-banner .category-tag {
display: inline-block;
padding: 4px 12px;
border-radius: 50px;
font-size: 0.78rem;
font-weight: 600;
margin-bottom: 12px;
background: var(--accent-light);
color: var(--accent);
}
.featured-banner h2 {
font-size: 1.6rem;
font-weight: 700;
margin-bottom: 10px;
line-height: 1.35;
}
.featured-banner h2 a {
color: var(--text-primary);
}
.featured-banner .excerpt {
color: var(--text-secondary);
font-size: 1rem;
line-height: 1.7;
margin-bottom: 16px;
}
.sidebar {
position: sticky;
top: 84px;
}
.sidebar-widget {
background: var(--bg-card);
border: 1px solid var(--border-color);
border-radius: var(--radius-lg);
padding: 24px;
margin-bottom: 24px;
}
.sidebar-widget h3 {
font-size: 1.05rem;
font-weight: 700;
margin-bottom: 16px;
padding-bottom: 12px;
border-bottom: 2px solid var(--accent);
}
.sidebar-list {
list-style: none;
}
.sidebar-list li {
padding: 10px 0;
border-bottom: 1px solid var(--border-color);
font-size: 0.9rem;
}
.sidebar-list li:last-child {
border-bottom: none;
}
.sidebar-list li a {
color: var(--text-secondary);
transition: color var(--transition);
display: flex;
align-items: center;
gap: 8px;
}
.sidebar-list li a:hover {
color: var(--accent);
}
.ad-placeholder-sidebar {
background: var(--bg-tertiary);
border: 1px dashed var(--border-color);
border-radius: var(--radius-md);
padding: 24px;
text-align: center;
color: var(--text-tertiary);
font-size: 0.85rem;
min-height: 250px;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
gap: 8px;
}
.article-detail {
max-width: 800px;
margin: 0 auto;
padding: 40px 20px;
}
.article-header {
margin-bottom: 32px;
}
.article-header .category-tag {
display: inline-block;
padding: 4px 14px;
border-radius: 50px;
font-size: 0.8rem;
font-weight: 600;
background: var(--accent-light);
color: var(--accent);
margin-bottom: 16px;
}
.category-tag.cat-ai-frontier { background: #eff6ff; color: #2563eb; }
.category-tag.cat-tech-news { background: #fff7ed; color: #ea580c; }
.category-tag.cat-info-gap { background: #fdf2f8; color: #db2777; }
.category-tag.cat-industry-insight { background: #eef2ff; color: #4f46e5; }
.category-tag.cat-software-tutorial { background: #d1fae5; color: #059669; }
[data-theme="dark"] .category-tag.cat-ai-frontier { background: #1e3a5f; color: #60a5fa; }
[data-theme="dark"] .category-tag.cat-tech-news { background: #3b2f1a; color: #fbbf24; }
[data-theme="dark"] .category-tag.cat-info-gap { background: #3b1a2e; color: #f472b6; }
[data-theme="dark"] .category-tag.cat-industry-insight { background: #1e2240; color: #818cf8; }
[data-theme="dark"] .category-tag.cat-software-tutorial { background: #064e3b; color: #34d399; }
.article-header h1 {
font-size: 2.2rem;
font-weight: 800;
line-height: 1.3;
margin-bottom: 16px;
letter-spacing: -0.5px;
}
.article-detail .article-meta {
margin-bottom: 24px;
padding-bottom: 24px;
border-bottom: 1px solid var(--border-color);
}
.article-content {
font-size: 1.05rem;
line-height: 1.85;
color: var(--text-primary);
}
.article-content h2 {
font-size: 1.5rem;
font-weight: 700;
margin: 32px 0 16px;
padding-bottom: 8px;
border-bottom: 2px solid var(--accent);
}
.article-content h3 {
font-size: 1.2rem;
font-weight: 700;
margin: 24px 0 12px;
}
.article-content p {
margin-bottom: 16px;
}
.article-content ul,
.article-content ol {
margin: 16px 0;
padding-left: 24px;
}
.article-content li {
margin-bottom: 8px;
}
.article-content blockquote {
border-left: 4px solid var(--accent);
padding: 12px 20px;
margin: 20px 0;
background: var(--accent-light);
border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
color: var(--text-secondary);
font-style: italic;
}
.article-content code {
background: var(--bg-tertiary);
padding: 2px 8px;
border-radius: 4px;
font-size: 0.9em;
font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
}
.article-content pre {
background: var(--bg-tertiary);
padding: 20px;
border-radius: var(--radius-md);
overflow-x: auto;
margin: 20px 0;
}
.article-content pre code {
background: none;
padding: 0;
}
.ad-placeholder-inline {
background: var(--bg-tertiary);
border: 1px dashed var(--border-color);
border-radius: var(--radius-md);
padding: 20px;
text-align: center;
color: var(--text-tertiary);
font-size: 0.85rem;
margin: 32px 0;
min-height: 90px;
display: flex;
align-items: center;
justify-content: center;
}
.share-bar {
display: flex;
align-items: center;
gap: 12px;
margin-top: 32px;
padding-top: 24px;
border-top: 1px solid var(--border-color);
}
.share-bar span {
font-weight: 600;
font-size: 0.9rem;
color: var(--text-secondary);
}
.share-btn {
padding: 8px 16px;
border: 1px solid var(--border-color);
border-radius: var(--radius-sm);
background: var(--bg-primary);
color: var(--text-secondary);
font-size: 0.85rem;
cursor: pointer;
transition: all var(--transition);
}
.share-btn:hover {
border-color: var(--accent);
color: var(--accent);
}
.related-articles {
margin-top: 48px;
padding-top: 32px;
border-top: 1px solid var(--border-color);
}
.related-articles h3 {
font-size: 1.2rem;
font-weight: 700;
margin-bottom: 20px;
}
.related-grid {
display: grid;
grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
gap: 16px;
}
.related-card {
background: var(--bg-card);
border: 1px solid var(--border-color);
border-radius: var(--radius-md);
padding: 16px;
transition: all var(--transition);
}
.related-card:hover {
box-shadow: var(--shadow-md);
}
.related-card h4 {
font-size: 0.95rem;
font-weight: 600;
margin-bottom: 8px;
}
.related-card h4 a {
color: var(--text-primary);
}
.related-card h4 a:hover {
color: var(--accent);
}
.about-section {
max-width: 800px;
margin: 0 auto;
}
.about-section h2 {
font-size: 1.5rem;
font-weight: 700;
margin: 32px 0 16px;
}
.about-section p {
color: var(--text-secondary);
margin-bottom: 16px;
line-height: 1.8;
}
.subscribe-cards {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
gap: 24px;
margin: 32px 0;
}
.subscribe-card {
background: var(--bg-card);
border: 1px solid var(--border-color);
border-radius: var(--radius-lg);
padding: 32px 24px;
text-align: center;
transition: all var(--transition);
position: relative;
}
.subscribe-card:hover {
box-shadow: var(--shadow-lg);
transform: translateY(-4px);
}
.subscribe-card.featured-plan {
border-color: var(--accent);
border-width: 2px;
}
.subscribe-card .plan-badge {
position: absolute;
top: -12px;
left: 50%;
transform: translateX(-50%);
background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
color: #fff;
padding: 4px 16px;
border-radius: 50px;
font-size: 0.8rem;
font-weight: 600;
}
.subscribe-card .plan-icon {
font-size: 2.5rem;
margin-bottom: 16px;
}
.subscribe-card h3 {
font-size: 1.2rem;
font-weight: 700;
margin-bottom: 8px;
}
.subscribe-card .price {
font-size: 2rem;
font-weight: 800;
color: var(--accent);
margin-bottom: 16px;
}
.subscribe-card .price span {
font-size: 0.9rem;
font-weight: 400;
color: var(--text-tertiary);
}
.subscribe-card ul {
list-style: none;
text-align: left;
margin-bottom: 24px;
}
.subscribe-card ul li {
padding: 6px 0;
font-size: 0.9rem;
color: var(--text-secondary);
}
.subscribe-card ul li::before {
content: '✓ ';
color: var(--success);
font-weight: 700;
}
.btn {
display: inline-block;
padding: 12px 28px;
border-radius: 50px;
font-size: 0.95rem;
font-weight: 600;
cursor: pointer;
border: none;
transition: all var(--transition);
text-align: center;
}
.btn-primary {
background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
color: #fff;
}
.btn-primary:hover {
opacity: 0.9;
transform: translateY(-1px);
box-shadow: var(--shadow-md);
color: #fff;
}
.btn-outline {
background: transparent;
border: 2px solid var(--accent);
color: var(--accent);
}
.btn-outline:hover {
background: var(--accent);
color: #fff;
}
.btn-block {
display: block;
width: 100%;
}
.newsletter-form {
display: flex;
gap: 12px;
max-width: 480px;
margin: 24px auto;
}
.newsletter-form input {
flex: 1;
padding: 12px 20px;
border: 2px solid var(--border-color);
border-radius: 50px;
font-size: 0.95rem;
background: var(--bg-primary);
color: var(--text-primary);
outline: none;
transition: border-color var(--transition);
}
.newsletter-form input:focus {
border-color: var(--accent);
}
.newsletter-form button {
padding: 12px 28px;
border-radius: 50px;
border: none;
background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
color: #fff;
font-weight: 600;
cursor: pointer;
white-space: nowrap;
transition: all var(--transition);
}
.newsletter-form button:hover {
opacity: 0.9;
}
.subscribe-cta {
background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
color: #fff;
padding: 48px 32px;
border-radius: var(--radius-lg);
text-align: center;
margin: 40px 0;
}
.subscribe-cta h2 {
font-size: 1.8rem;
font-weight: 800;
margin-bottom: 12px;
}
.subscribe-cta p {
opacity: 0.9;
margin-bottom: 24px;
}
.footer {
background: var(--bg-primary);
border-top: 1px solid var(--border-color);
padding: 40px 0 24px;
margin-top: 60px;
}
.footer-grid {
display: grid;
grid-template-columns: 2fr 1fr 1fr;
gap: 40px;
margin-bottom: 32px;
}
.footer-col h4 {
font-size: 1rem;
font-weight: 700;
margin-bottom: 16px;
}
.footer-col p {
color: var(--text-secondary);
font-size: 0.9rem;
line-height: 1.7;
}
.footer-col ul {
list-style: none;
}
.footer-col ul li {
margin-bottom: 8px;
}
.footer-col ul li a {
color: var(--text-secondary);
font-size: 0.9rem;
transition: color var(--transition);
}
.footer-col ul li a:hover {
color: var(--accent);
}
.footer-bottom {
border-top: 1px solid var(--border-color);
padding-top: 20px;
display: flex;
justify-content: space-between;
align-items: center;
font-size: 0.85rem;
color: var(--text-tertiary);
}

.no-results {
text-align: center;
padding: 60px 20px;
color: var(--text-tertiary);
}
.no-results .icon {
font-size: 3rem;
margin-bottom: 16px;
}
.toast {
position: fixed;
bottom: 32px;
left: 50%;
transform: translateX(-50%);
background: var(--bg-primary);
border: 1px solid var(--border-color);
border-radius: var(--radius-md);
padding: 14px 28px;
box-shadow: var(--shadow-xl);
z-index: 2000;
font-size: 0.9rem;
font-weight: 500;
animation: toastIn 0.3s ease, toastOut 0.3s ease 2.5s forwards;
}
.toast.success {
border-color: var(--success);
color: var(--success);
}
.toast.error {
border-color: var(--danger);
color: var(--danger);
}
@keyframes toastIn {
from { opacity: 0; transform: translateX(-50%) translateY(20px); }
to { opacity: 1; transform: translateX(-50%) translateY(0); }
}
@keyframes toastOut {
from { opacity: 1; }
to { opacity: 0; }
}
@media (max-width: 768px) {
.hero h1 {
font-size: 2rem;
}
.hero p {
font-size: 1rem;
}
.nav-links {
display: none;
position: absolute;
top: 64px;
left: 0;
right: 0;
background: var(--bg-primary);
border-bottom: 1px solid var(--border-color);
flex-direction: column;
padding: 16px;
gap: 4px;
}
.nav-links.open {
display: flex;
}
.mobile-menu-btn {
display: block;
}
.content-grid {
grid-template-columns: 1fr;
}
.article-header h1 {
font-size: 1.6rem;
}
.footer-grid {
grid-template-columns: 1fr;
gap: 24px;
}
.footer-bottom {
flex-direction: column;
gap: 8px;
text-align: center;
}
.newsletter-form {
flex-direction: column;
max-width: 100%;
}
.newsletter-form button {
width: 100%;
}
.subscribe-cards {
grid-template-columns: 1fr;
}
.featured-banner {
padding: 24px;
}
.featured-banner h2 {
font-size: 1.3rem;
}
.search-box {
max-width: 100%;
}
.related-grid {
grid-template-columns: 1fr;
}
}
@media (max-width: 480px) {
.hero {
padding: 40px 0;
}
.hero h1 {
font-size: 1.6rem;
}
.search-box input {
padding: 12px 16px;
}
.search-box button {
padding: 12px 18px;
font-size: 0.85rem;
}
.category-pill {
padding: 6px 14px;
font-size: 0.8rem;
}
}
@media print {
.navbar, .footer, .sidebar, .ad-placeholder-inline,
.ad-placeholder-sidebar, .share-bar, .theme-toggle {
display: none;
}
body {
background: #fff;
color: #000;
}
}