:root{--primary-color: #4f46e5;--primary-dark: #4338ca;--primary-light: #e0e7ff;--secondary-color: #10b981;--secondary-dark: #059669;--text-primary: #1f2937;--text-secondary: #4b5563;--text-dark: #111827;--text-light: #9ca3af;--bg-primary: #ffffff;--bg-secondary: #f3f4f6;--bg-tertiary: #f9fafb;--border-light: #e5e7eb;--border-medium: #d1d5db;--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--space-2xl: 5rem;--space-3xl: 8rem;--radius-sm: .25rem;--radius-md: .375rem;--radius-lg: .5rem;--radius-xl: .75rem;--radius-2xl: 1rem;--radius-full: 9999px;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04);--shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, .25);--transition-normal: .3s ease}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,Noto Sans SC,sans-serif;color:var(--text-primary);line-height:1.5;background-color:var(--bg-secondary);overflow-x:hidden}.container{max-width:1200px;margin:0 auto;padding:0 var(--space-lg)}.page-container{padding-top:120px;padding-bottom:60px;min-height:100vh}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.2;margin-bottom:var(--space-sm);color:var(--text-dark);letter-spacing:-.025em}h1{font-size:3.5rem}h2{font-size:2.5rem}h3{font-size:1.875rem}h4{font-size:1.5rem}p{margin-bottom:var(--space-sm);color:var(--text-secondary);font-size:1.125rem;line-height:1.7}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.75rem 1.5rem;border:none;border-radius:var(--radius-lg);text-decoration:none;font-weight:600;font-size:.875rem;cursor:pointer;transition:all var(--transition-normal);gap:.5rem;white-space:nowrap;position:relative;overflow:hidden}.btn-primary{background:linear-gradient(135deg,var(--primary-color),var(--primary-dark));color:#fff;box-shadow:var(--shadow-md)}.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-xl)}.btn-secondary{background:linear-gradient(135deg,var(--secondary-color),var(--secondary-dark));color:#fff;box-shadow:var(--shadow-md)}.btn-secondary:hover{transform:translateY(-2px);box-shadow:var(--shadow-xl)}.btn-outline{background:transparent;color:var(--primary-color);border:2px solid var(--primary-color)}.btn-outline:hover{background:var(--primary-color);color:#fff;transform:translateY(-2px)}.btn-ghost{background:transparent;color:var(--text-secondary);border:1px solid var(--border-light)}.btn-ghost:hover{background:var(--bg-tertiary);color:var(--text-primary);border-color:var(--border-medium)}.btn-small{padding:.5rem 1rem;font-size:.75rem}.btn-full{width:100%}.navbar{position:fixed;top:0;left:0;width:100%;z-index:1000;background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 1px 2px #0000000d;transition:all var(--transition-normal)}.nav-container{display:flex;justify-content:space-between;align-items:center;max-width:1200px;margin:0 auto;padding:1rem var(--space-lg)}.nav-logo{display:flex;align-items:center;gap:.75rem;font-weight:800;font-size:1.5rem;color:var(--primary-color);text-decoration:none}.logo-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--primary-color),var(--primary-dark));border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.2rem}.nav-menu{display:flex;gap:2rem;list-style:none}.nav-link{text-decoration:none;color:var(--text-secondary);font-weight:500;transition:all var(--transition-normal)}.nav-link:hover,.nav-link.active{color:var(--primary-color)}.nav-actions{display:flex;gap:1rem;align-items:center}.hamburger{display:none;cursor:pointer}.bar{display:block;width:25px;height:3px;margin:5px auto;background-color:var(--text-dark);transition:all .3s ease-in-out}.hero{position:relative;padding:180px 0 100px;overflow:hidden;background:var(--bg-primary)}.hero-background{position:absolute;top:0;left:0;width:100%;height:100%;z-index:0}.hero-pattern{position:absolute;width:100%;height:100%;background-image:radial-gradient(#e0e7ff 1px,transparent 1px);background-size:32px 32px;opacity:.5}.hero-glow{position:absolute;top:-50%;right:-20%;width:80%;height:100%;background:radial-gradient(circle,#4f46e51a,#fff0 70%);filter:blur(60px)}.hero-content{position:relative;z-index:1;max-width:800px;margin:0 auto;text-align:center}.hero-badge{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1rem;background:#4f46e51a;color:var(--primary-color);border-radius:var(--radius-full);font-weight:600;font-size:.875rem;margin-bottom:var(--space-lg)}.hero-title{font-size:4rem;margin-bottom:var(--space-md);line-height:1.1}.hero-title .chinese{display:block;background:linear-gradient(135deg,var(--text-dark) 0%,var(--text-secondary) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.hero-title .english{display:block;font-size:2rem;color:var(--primary-color);margin-top:.5rem}.hero-subtitle{font-size:1.25rem;margin-bottom:var(--space-xl);color:var(--text-dark)}.search-section{background:#fffc;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);padding:var(--space-lg);border-radius:var(--radius-2xl);box-shadow:var(--shadow-2xl);border:1px solid rgba(255,255,255,.5);margin-bottom:var(--space-2xl)}.search-tabs{display:flex;justify-content:center;gap:var(--space-md);margin-bottom:var(--space-lg)}.search-tab{padding:.75rem 1.5rem;border:none;background:transparent;color:var(--text-secondary);font-weight:600;cursor:pointer;border-radius:var(--radius-full);transition:all var(--transition-normal);display:flex;align-items:center;gap:.5rem}.search-tab.active{background:var(--primary-color);color:#fff;box-shadow:var(--shadow-md)}.search-content{display:none}.search-content.active{display:block;animation:fadeInUp .5s ease-out}.search-form{display:flex;gap:var(--space-md)}.search-input-group{position:relative;flex:1}.search-input-group i{position:absolute;left:1rem;top:50%;transform:translateY(-50%);color:var(--text-light)}.search-input,.search-select{width:100%;padding:1rem 1rem 1rem 3rem;border:2px solid var(--border-light);border-radius:var(--radius-xl);font-size:1rem;transition:all var(--transition-normal);background:#fff}.search-input:focus,.search-select:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 4px #4f46e51a}.search-btn{padding:0 2rem;background:var(--primary-color);color:#fff;border:none;border-radius:var(--radius-xl);font-weight:600;cursor:pointer;transition:all var(--transition-normal);display:flex;align-items:center;gap:.5rem}.search-btn:hover{background:var(--primary-dark);transform:translateY(-2px)}.hero-stats{display:flex;justify-content:center;gap:4rem;margin-top:3rem}.stat-item{text-align:center}.stat-icon{width:48px;height:48px;background:#fff;border-radius:12px;display:flex;align-items:center;justify-content:center;margin:0 auto .5rem;color:var(--primary-color);box-shadow:var(--shadow-md)}.stat-number{display:block;font-size:1.5rem;font-weight:700;color:var(--text-dark)}.stat-label{font-size:.875rem;color:var(--text-secondary)}.quick-actions{padding:var(--space-3xl) 0}.action-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--space-lg)}.action-card{background:#fff;padding:var(--space-xl);border-radius:var(--radius-xl);text-align:center;transition:all var(--transition-normal);border:1px solid var(--border-light)}.action-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-xl);border-color:var(--primary-color)}.action-icon{width:64px;height:64px;background:var(--primary-light);color:var(--primary-color);border-radius:20px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin:0 auto var(--space-lg)}.social{padding:var(--space-2xl) 0;background:#fff}.section-header{display:flex;justify-content:space-between;align-items:end;margin-bottom:var(--space-xl)}.social-filters-toolbar{display:flex;gap:var(--space-md);background:var(--bg-secondary);padding:var(--space-sm);border-radius:var(--radius-lg)}.social-grid{display:flex;overflow-x:auto;gap:var(--space-lg);padding:var(--space-md) var(--space-xs);padding-bottom:var(--space-lg);scroll-behavior:smooth;-webkit-overflow-scrolling:touch;scrollbar-width:thin}.social-grid::-webkit-scrollbar{height:8px}.social-grid::-webkit-scrollbar-track{background:var(--bg-secondary);border-radius:4px}.social-grid::-webkit-scrollbar-thumb{background:var(--border-medium);border-radius:4px}.social-grid::-webkit-scrollbar-thumb:hover{background:var(--text-light)}.user-card{min-width:280px;max-width:320px;flex:0 0 auto;background:#fff;border:1px solid var(--border-light);border-radius:var(--radius-xl);overflow:hidden;transition:all var(--transition-normal);cursor:pointer}.user-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}.card-banner{height:80px;background:linear-gradient(135deg,var(--primary-light),var(--secondary-light))}.card-avatar{width:80px;height:80px;margin:-40px auto 0;position:relative;border-radius:50%;border:4px solid white}.card-avatar img{width:100%;height:100%;border-radius:50%;object-fit:cover}.status-indicator{position:absolute;bottom:2px;right:2px;width:14px;height:14px;border-radius:50%;border:2px solid white}.status-indicator.online{background:#10b981}.status-indicator.offline{background:#9ca3af}.card-info{text-align:center;padding:var(--space-md)}.headline{font-size:.875rem;color:var(--text-secondary);margin-bottom:.25rem}.location-text{font-size:.75rem;color:var(--text-light);margin-bottom:var(--space-md)}.card-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:.25rem;margin-bottom:var(--space-md)}.card-tags span{background:var(--bg-secondary);padding:.25rem .5rem;border-radius:var(--radius-sm);font-size:.75rem;color:var(--text-secondary)}.card-actions{padding:var(--space-md);border-top:1px solid var(--border-light);display:flex;gap:var(--space-sm)}.modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#00000080;display:none;align-items:center;justify-content:center;z-index:10000;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.modal{background:#fff;border-radius:var(--radius-2xl);width:90%;max-width:500px;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-2xl)}.modal-large{max-width:1100px;width:95%}.modal-header{padding:var(--space-lg);border-bottom:1px solid var(--border-light);display:flex;justify-content:space-between;align-items:center}.modal-close{background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--text-light)}.modal-content{padding:var(--space-lg)}.form-group{margin-bottom:var(--space-md)}.form-group label{display:block;margin-bottom:.5rem;font-weight:600;color:var(--text-dark)}.form-group input,.form-group select,.form-group textarea{width:100%;padding:.75rem;border:2px solid var(--border-light);border-radius:var(--radius-lg);font-size:1rem;transition:all var(--transition-normal)}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary-color)}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-md)}.notification{position:fixed;top:24px;right:24px;padding:16px 24px;border-radius:12px;background:#fff;box-shadow:0 10px 15px -3px #0000001a;display:flex;align-items:center;gap:12px;z-index:11000;animation:slideInRight .3s ease-out;border-left:4px solid;min-width:300px}.notification-success{border-left-color:#10b981}.notification-error{border-left-color:#ef4444}.notification-warning{border-left-color:#f59e0b}.notification-info{border-left-color:#3b82f6}.notification-close{background:none;border:none;margin-left:auto;cursor:pointer;color:var(--text-light)}.footer{background:var(--text-dark);color:#fff;padding:4rem 0 2rem}.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:3rem;margin-bottom:3rem}.footer-logo{display:flex;align-items:center;gap:.75rem;font-size:1.5rem;font-weight:800;margin-bottom:1rem}.footer-section h4{color:#fff;margin-bottom:1.5rem}.footer-section ul{list-style:none}.footer-section ul li{margin-bottom:.75rem}.footer-section a{color:var(--text-light);text-decoration:none;transition:all .3s}.footer-section a:hover{color:#fff}.social-links{display:flex;gap:1rem;margin-top:1.5rem}.social-link{width:36px;height:36px;background:#ffffff1a;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;transition:all .3s}.social-link:hover{background:var(--primary-color);transform:translateY(-3px)}.footer-bottom{padding-top:2rem;border-top:1px solid rgba(255,255,255,.1)}.footer-bottom-content{display:flex;justify-content:space-between;align-items:center;color:var(--text-light);font-size:.875rem}.footer-links{display:flex;gap:1.5rem}.interests-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px;max-height:200px;overflow-y:auto;padding:10px;border:1px solid var(--border-light);border-radius:var(--radius-lg);background:var(--bg-tertiary)}.interest-item{display:flex;align-items:center;gap:8px;cursor:pointer;font-size:.9rem;padding:6px;border-radius:var(--radius-md);transition:background .2s;-webkit-user-select:none;user-select:none}.interest-item:hover{background:#fff;box-shadow:var(--shadow-sm)}.interest-item input[type=checkbox]{width:16px;height:16px;margin:0;cursor:pointer;accent-color:var(--primary-color)}@media (max-width: 768px){.nav-menu{position:fixed;left:-100%;top:70px;flex-direction:column;background:#fff;width:100%;text-align:center;transition:.3s;box-shadow:0 10px 27px #0000000d;padding:2rem}.nav-menu.active{left:0}.hamburger{display:block}.hero-title{font-size:2.5rem}.hero-stats{flex-direction:column;gap:2rem}.search-form{flex-direction:column}.form-row{grid-template-columns:1fr}}.section-filters{display:flex;gap:var(--space-md);align-items:center;background:var(--bg-secondary);padding:var(--space-sm);border-radius:var(--radius-lg)}.search-box-simple{position:relative;min-width:200px}.search-box-simple i{position:absolute;left:1rem;top:50%;transform:translateY(-50%);color:var(--text-light);pointer-events:none}.search-box-simple input{width:100%;padding:.5rem 1rem .5rem 2.5rem;border:1px solid var(--border-light);border-radius:var(--radius-md);font-size:.875rem;transition:all var(--transition-normal)}.search-box-simple input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #4f46e51a}.location-filters{display:flex;gap:var(--space-md)}.filter-select{padding:.5rem 1rem;border:1px solid var(--border-light);border-radius:var(--radius-md);background:#fff;font-size:.875rem;color:var(--text-primary);cursor:pointer;transition:all var(--transition-normal);min-width:140px}.filter-select:hover{border-color:var(--primary-color)}.filter-select:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #4f46e51a}.filter-select:disabled{background:var(--bg-secondary);color:var(--text-light);cursor:not-allowed}@media (max-width: 992px){.section-filters{flex-direction:column;align-items:stretch}.location-filters{flex-direction:column}}.featured-jobs{padding:var(--space-3xl) 0}.jobs-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:var(--space-lg)}.job-card{background:#fff;border-radius:var(--radius-xl);padding:var(--space-lg);border:1px solid var(--border-light);transition:all var(--transition-normal);display:flex;flex-direction:column}.job-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:var(--primary-color)}.job-header{display:flex;flex-wrap:wrap;gap:var(--space-md);margin-bottom:var(--space-md)}.company-logo{width:48px;height:48px;background:var(--bg-secondary);border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:var(--primary-color)}.job-info{flex:1}.job-info h3{font-size:1.1rem;margin-bottom:.25rem}.job-info .company{font-size:.9rem;color:var(--text-secondary);margin-bottom:.25rem}.job-info .location{font-size:.8rem;color:var(--text-light)}.job-meta{display:flex;flex-direction:column;align-items:flex-end;gap:.25rem}.job-meta .salary{font-weight:700;color:var(--secondary-dark);font-size:.9rem}.job-meta .type{font-size:.75rem;padding:2px 8px;background:var(--bg-secondary);border-radius:var(--radius-sm);color:var(--text-secondary)}.job-tags{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:var(--space-lg);flex:1}.job-tags .tag{font-size:.75rem;padding:4px 10px;background:var(--bg-tertiary);border-radius:var(--radius-full);color:var(--text-secondary)}.job-footer{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--border-light);padding-top:var(--space-md)}.job-footer .posted{font-size:.75rem;color:var(--text-light)}.community{padding:var(--space-3xl) 0;background:var(--bg-secondary)}.community-content{display:grid;grid-template-columns:350px 1fr;gap:var(--space-xl)}.forum-categories{display:flex;flex-direction:column;gap:var(--space-md)}.forum-category{background:#fff;padding:var(--space-lg);border-radius:var(--radius-xl);border:1px solid var(--border-light);transition:all var(--transition-normal);cursor:pointer;text-decoration:none;color:inherit;display:block}.forum-category:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--primary-color)}.category-icon{width:40px;height:40px;background:var(--primary-light);color:var(--primary-color);border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;margin-bottom:var(--space-md)}.forum-category h3{font-size:1.1rem;margin-bottom:.5rem}.forum-category p{font-size:.9rem;margin-bottom:var(--space-md)}.category-stats{display:flex;justify-content:space-between;font-size:.8rem;color:var(--text-light)}.recent-topics{background:#fff;padding:var(--space-xl);border-radius:var(--radius-xl);border:1px solid var(--border-light)}.topics-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-lg);padding-bottom:var(--space-md);border-bottom:1px solid var(--border-light)}.topic-list{display:flex;flex-direction:column;gap:var(--space-lg)}.topic-item{display:flex;gap:var(--space-md);padding-bottom:var(--space-lg);border-bottom:1px solid var(--border-light)}.topic-item:last-child{border-bottom:none;padding-bottom:0}.topic-avatar{width:40px;height:40px;background:var(--bg-secondary);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--text-light)}.topic-content h4{font-size:1rem;margin-bottom:.25rem;cursor:pointer;transition:color .2s}.topic-content h4:hover{color:var(--primary-color)}.topic-content p{font-size:.9rem;margin-bottom:.5rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.topic-meta{display:flex;gap:1rem;font-size:.8rem;color:var(--text-light)}@media (max-width: 992px){.community-content{grid-template-columns:1fr}}.fab-btn{position:fixed;bottom:40px;right:40px;width:64px;height:64px;border-radius:50%;background:linear-gradient(135deg,var(--primary-color),var(--primary-dark));color:#fff;border:none;box-shadow:0 4px 15px #4f46e566;font-size:1.5rem;cursor:pointer;z-index:999;transition:all .3s cubic-bezier(.175,.885,.32,1.275);display:flex;align-items:center;justify-content:center}.fab-btn:hover{transform:scale(1.1) rotate(90deg);box-shadow:0 8px 25px #4f46e580}.fab-btn:active{transform:scale(.95) rotate(90deg)}.post-tabs{display:flex;background:var(--bg-secondary);padding:4px;border-radius:var(--radius-lg);margin-bottom:var(--space-lg)}.post-tab{flex:1;padding:12px;border:none;background:transparent;color:var(--text-secondary);font-weight:600;cursor:pointer;border-radius:var(--radius-md);transition:all .2s;display:flex;align-items:center;justify-content:center;gap:8px;font-size:.95rem}.post-tab.active{background:#fff;color:var(--primary-color);box-shadow:var(--shadow-sm)}.post-tab:hover:not(.active){background:#ffffff80;color:var(--text-primary)}