body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}.header{background:#fff;border-bottom:2px solid #2563eb;box-shadow:0 4px 24px #1e293b0f;color:#111;height:70px;line-height:70px;margin:0;padding:0;position:-webkit-sticky;position:sticky;top:0;width:100%;z-index:1000}.header .container{height:70px;justify-content:space-between;margin:0 auto;max-width:1200px;padding:0 20px}.header .container,.logo{align-items:center;display:flex}.logo{transition:all .3s ease}.logo,.logo:hover{color:inherit;text-decoration:none}.logo:hover{transform:translateY(-1px)}.logo-container{align-items:center;display:flex;gap:12px}.logo-img{height:40px;max-width:120px;object-fit:contain;transition:transform .3s ease;width:auto}.logo:hover .logo-img{transform:scale(1.05)}.logo-text{display:flex;flex-direction:column;line-height:1.2}.logo-title{font-size:18px!important;font-weight:700!important}.logo-subtitle,.logo-title{color:#111!important;line-height:1.2!important;margin:0!important}.logo-subtitle{font-size:12px!important;font-weight:400!important}.nav-dropdown-btn,.nav-link-btn{background:#0000;border:none;border-radius:10px;color:#111;font-size:14px;font-weight:500;height:40px;transition:all .3s cubic-bezier(.4,0,.2,1)}.nav-dropdown-btn:hover,.nav-link-btn:hover{background:#2563eb14!important;color:#2563eb!important}.nav-dropdown-btn:focus,.nav-link-btn:focus{background:#fbbf241f!important;color:#fbbf24!important}.header-actions{gap:18px;justify-content:flex-end}.advice-btn+.advice-btn{margin-left:8px}.header-actions .ant-btn{border-radius:8px;font-weight:500;height:36px}.header-actions .ant-btn-primary{background:#2563eb!important;border:none;border-radius:12px;box-shadow:0 2px 8px #2563eb26;color:#fff!important}.header-actions .ant-btn-primary:hover{background:#1d4ed8!important;box-shadow:0 4px 12px #2563eb2e;transform:translateY(-1px)}.header-actions .ant-btn-default{background:#fff!important;border:2px solid #2563eb!important;border-radius:12px;color:#2563eb!important}.header-actions .ant-btn-default:hover{background:#2563eb!important;color:#fff!important}.mobile-menu-btn{align-items:center;border-radius:8px;color:#333;display:none!important;font-size:18px;height:40px;justify-content:center;width:40px}.mobile-menu-btn:hover{background:#667eea1a!important;color:#667eea!important}.mobile-menu-drawer .ant-drawer-header{background:linear-gradient(135deg,#667eea,#764ba2);border-bottom:none;color:#fff}.mobile-menu-drawer .ant-drawer-title{color:#fff;font-weight:600}.mobile-menu-drawer .ant-drawer-close{color:#fff}.mobile-menu-drawer .ant-drawer-close:hover{color:#fffc}.mobile-menu-drawer .ant-menu-item{border-radius:8px;margin:0 0 4px}.mobile-menu-drawer .ant-menu-item:hover{background:#667eea1a}.mobile-menu-drawer .ant-menu-item-selected{background:#667eea26;color:#667eea}.mobile-menu-drawer .ant-menu-submenu-title{border-radius:8px;margin-bottom:4px}.mobile-menu-drawer .ant-menu-submenu-title:hover{background:#667eea1a}@media (max-width:1200px){.desktop-nav{gap:16px}.header-actions{gap:8px}}@media (max-width:1400px){.desktop-nav{gap:20px}.nav-dropdown-btn{font-size:13px;padding:0 12px}}@media (max-width:1024px){.header .desktop-nav{display:none!important}.header .mobile-menu-btn{display:inline-flex!important}.header .desktop-only{display:none!important}}@media (max-width:768px){.header .container{padding:0 16px}.header{height:60px;line-height:60px}.logo-img{height:32px;max-width:100px;width:auto}.logo-title{font-size:16px!important}.logo-subtitle{font-size:11px!important}.header-actions{justify-content:flex-end}}@media (max-width:900px){.header .container{padding:0 8px}.desktop-nav,.header-actions{gap:8px}.advice-btn,.header-actions .ant-btn{font-size:.95rem;min-width:110px;padding:0 10px}}@media (max-width:480px){.header .container{padding:0 12px}.logo-text{display:none!important}.logo-img{height:28px;max-width:80px;width:auto}}@media (max-width:400px){.header .container{padding:0 4px}.logo-img{height:22px;max-width:60px}.header{height:48px;line-height:48px}.header-actions .ant-btn{font-size:.9rem;padding:0 8px}}.ant-dropdown-menu{border-radius:12px;box-shadow:0 8px 32px #0000001f;min-width:200px;padding:8px}.ant-dropdown-menu-item{border-radius:8px;margin-bottom:4px;padding:8px 12px;transition:all .3s ease}.ant-dropdown-menu-item:hover{background:#667eea1a}.ant-dropdown-menu-item a{align-items:center;color:#333;display:flex;gap:8px;text-decoration:none}.ant-dropdown-menu-item:hover a{color:#667eea}.header .ant-col{align-items:center;display:flex}.header .ant-row{align-items:center;height:100%;width:100%}.logo-col{flex:0 0 auto}.desktop-nav{flex:1 1 auto;gap:24px;justify-content:flex-start}.desktop-nav,.header-actions{align-items:center;display:flex}.header-actions{flex:0 0 auto;gap:12px;margin-left:0!important}.header *{transition:all .3s cubic-bezier(.4,0,.2,1)}.mobile-menu-btn:focus-visible,.nav-dropdown-btn:focus-visible,.nav-link-btn:focus-visible{outline:2px solid #667eea;outline-offset:2px}.header-actions .ant-btn:not(:disabled):hover{transform:translateY(-1px);transition:all .3s ease}.mobile-menu-drawer .ant-drawer-body{padding:16px}.mobile-menu-drawer .ant-drawer-body::-webkit-scrollbar{width:6px}.mobile-menu-drawer .ant-drawer-body::-webkit-scrollbar-track{background:#f1f1f1;border-radius:3px}.mobile-menu-drawer .ant-drawer-body::-webkit-scrollbar-thumb{background:#c1c1c1;border-radius:3px}.mobile-menu-drawer .ant-drawer-body::-webkit-scrollbar-thumb:hover{background:#a8a8a8}.teachers-promotions-table .ant-table-thead>tr>th{background:linear-gradient(135deg,#2563eb,#1d4ed8);border:none;color:#fff;font-size:16px;font-weight:600;padding:16px}.teachers-promotions-table .ant-table-tbody>tr>td{background:#fff;border-bottom:1px solid #f0f0f0;padding:20px 16px}.teachers-promotions-table .ant-table-tbody>tr:hover>td{background:#f8fafc}.teachers-promotions-table .ant-table-tbody>tr:nth-child(2n)>td{background:#fafbfc}.teachers-promotions-table .ant-table-tbody>tr:nth-child(2n):hover>td{background:#f1f5f9}.ant-dropdown-menu-item .ant-dropdown-menu-title-content{padding:0!important}.ant-dropdown-menu-item .ant-dropdown-menu-title-content a{color:inherit!important;display:block!important;text-decoration:none!important;transition:all .3s ease!important;width:100%!important}.ant-dropdown-menu-item:hover .ant-dropdown-menu-title-content a{background:linear-gradient(135deg,#f8fafc,#e2e8f0)!important;border-radius:8px!important;transform:translateX(4px)!important}.khoa-hoc-dropdown .ant-dropdown-menu-item:hover{background:#0000!important;cursor:default!important}.khoa-hoc-dropdown .ant-dropdown-menu-item:hover .ant-dropdown-menu-title-content{transform:none!important}.ant-dropdown-menu-item{border-radius:8px!important;margin-bottom:8px!important;transition:all .3s ease!important}.ant-dropdown-menu-item:hover{background:#0000!important}.ant-dropdown-menu-item:last-child{margin-bottom:0!important}.khoa-hoc-dropdown .ant-dropdown-menu{border-radius:12px!important;box-shadow:0 8px 32px #0000001f!important;min-width:400px!important;padding:16px!important}.khoa-hoc-dropdown .ant-dropdown-menu-item{margin-bottom:12px!important;padding:0!important}.khoa-hoc-dropdown .ant-dropdown-menu-item:last-child{margin-bottom:0!important}.advice-btn{background:#ffb980!important;border:none;border-radius:8px;color:#fff!important;font-weight:600}.advice-btn:focus,.advice-btn:hover{background:#ff9800!important;color:#fff!important}.header-actions .advice-btn,.header-actions .ant-btn{align-items:center;border-radius:8px!important;box-sizing:border-box;display:flex;font-size:14px;font-weight:500;height:36px!important;justify-content:center;min-width:120px;padding:0 16px!important}.header-actions .ant-btn .anticon{margin-right:6px}.header-actions .ant-btn:not(:first-child){margin-left:12px!important}.live-lessons-section{background:#f8f9fa;padding:80px 0;position:relative}.live-lessons-section:before{background:linear-gradient(135deg,#667eea05,#764ba205);bottom:0;content:"";left:0;pointer-events:none;position:absolute;right:0;top:0}.live-lessons-section .container{margin:0 auto;max-width:1200px;padding:0 20px;position:relative;z-index:1}.section-header{margin-bottom:48px}.section-title{color:#333!important;font-size:2.5rem;line-height:1.3;margin-bottom:16px}.section-subtitle{color:#666!important;line-height:1.6;margin:0 auto;max-width:600px}.lessons-grid{margin-bottom:48px}.lesson-card{border-radius:16px;box-shadow:0 2px 8px #00000014;display:flex;flex-direction:column;height:100%;min-height:540px;overflow:hidden;transition:all .3s ease}.lesson-card:hover{box-shadow:0 12px 32px #00000026;transform:translateY(-8px)}.lesson-card .ant-card-body{display:flex;flex-direction:column;height:100%}.lesson-header{margin-bottom:16px}.lesson-header .ant-tag{align-items:center;border:none;color:#fff;display:inline-flex;font-weight:600;gap:6px}.lesson-content{display:flex;flex:1 1;flex-direction:column}.lesson-title{-webkit-line-clamp:3;-webkit-box-orient:vertical;color:#333!important;display:-webkit-box;font-weight:600;line-height:1.4;margin-bottom:16px;overflow:hidden}.lesson-instructor{margin-bottom:20px}.lesson-instructor .ant-avatar{flex-shrink:0}.lesson-details{flex:1 1;margin-bottom:20px}.lesson-detail{align-items:center;display:flex;margin-bottom:8px}.lesson-detail .anticon{font-size:14px;margin-right:8px;text-align:center;width:16px}.lesson-detail .ant-typography{color:#666;font-size:14px}.price-free{color:#52c41a!important;font-weight:600}.join-btn{background:linear-gradient(135deg,#667eea,#764ba2);border:none;font-weight:600;margin-top:auto;transition:all .3s ease}.join-btn:hover{background:linear-gradient(135deg,#5a6fd8,#6a4190);box-shadow:0 8px 24px #667eea66;transform:translateY(-2px)}.explore-more{margin-top:48px;text-align:center}.explore-more .ant-btn{transition:all .3s ease}.explore-more .ant-btn:hover{background:#667eea!important;border-color:#667eea!important;box-shadow:0 8px 24px #667eea4d;color:#fff!important;transform:translateY(-2px)}.lessons-features{background:#fff;border-radius:16px;box-shadow:0 4px 16px #00000014;margin-top:48px;padding:40px 20px}.lessons-features .feature-item{padding:20px;text-align:center}.lessons-features .ant-avatar{box-shadow:0 4px 16px #0000001a;margin-bottom:16px}.lessons-features .ant-typography{margin-bottom:8px}.lessons-features .ant-typography:last-child{margin-bottom:0}.ant-badge-ribbon-wrapper .ant-badge-ribbon{border-radius:0 0 8px 8px;font-size:12px;font-weight:600;padding:4px 12px}@media (max-width:1024px){.live-lessons-section{padding:60px 0}.section-title{font-size:2.2rem}.lessons-grid .ant-col{margin-bottom:24px}}@media (max-width:768px){.live-lessons-section{padding:40px 0}.section-title{font-size:2rem}.section-subtitle{font-size:15px}.lesson-card{margin-bottom:24px}.lesson-card .ant-card-body{padding:20px}.lesson-title{font-size:16px}.lessons-features{padding:32px 16px}.lessons-features .feature-item{margin-bottom:24px;padding:16px}}@media (max-width:480px){.live-lessons-section{padding:32px 0}.section-title{font-size:1.8rem}.section-subtitle{font-size:14px}.lesson-card .ant-card-body{padding:16px}.lesson-title{font-size:15px}.lesson-instructor .ant-avatar{size:32px}.join-btn{font-size:14px;height:40px}.explore-more .ant-btn{height:44px;padding:0 24px}.lessons-features{padding:24px 12px}.lessons-features .ant-avatar{size:40px}}@media (max-width:400px){.live-lessons-section{padding:18px 0}.section-title{font-size:1.1rem}.lesson-card{border-radius:10px;min-height:320px}.lesson-content,.lesson-details,.lesson-header{padding:0 4px}.join-btn{font-size:.9rem;padding:8px 0}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.lesson-card{animation:fadeInUp .6s ease-out}.lesson-card:first-child{animation-delay:.1s}.lesson-card:nth-child(2){animation-delay:.2s}.lesson-card:nth-child(3){animation-delay:.3s}.lesson-card:focus-within{outline:2px solid #667eea;outline-offset:2px}.join-btn:focus-visible{outline:2px solid gold;outline-offset:2px}@media (prefers-contrast:high){.lesson-card{border:2px solid #000}.lesson-detail .ant-typography,.lesson-title{color:#000!important}}@media (prefers-reduced-motion:reduce){.explore-more .ant-btn,.join-btn,.lesson-card{animation:none;transition:none}.explore-more .ant-btn:hover,.join-btn:hover,.lesson-card:hover{transform:none}}.lesson-card.loading{opacity:.6;pointer-events:none}.lesson-card.loading .ant-card-body{position:relative}.lesson-card.loading .ant-card-body:after{animation:shimmer 1.5s infinite;background:linear-gradient(90deg,#0000,#fff6,#0000);bottom:0;content:"";left:0;position:absolute;right:0;top:0}@keyframes shimmer{0%{transform:translateX(-100%)}to{transform:translateX(100%)}}.lesson-details::-webkit-scrollbar{width:4px}.lesson-details::-webkit-scrollbar-track{background:#f1f1f1;border-radius:2px}.lesson-details::-webkit-scrollbar-thumb{background:#c1c1c1;border-radius:2px}.lesson-details::-webkit-scrollbar-thumb:hover{background:#a8a8a8}.mock-tests-section{background:#fff;padding:80px 0}.section-header,.tests-grid{margin-bottom:50px}.tests-grid{grid-gap:30px;display:grid;gap:30px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}.test-card{background:#fff;border:1px solid #0000000d;border-radius:12px;box-shadow:0 4px 20px #00000014;overflow:hidden;position:relative;transition:all .3s ease}.test-card.latest:before{background:#28a745;border-radius:12px;color:#fff;content:"Latest";font-size:.7rem;font-weight:600;padding:4px 8px;position:absolute;right:15px;text-transform:uppercase;top:15px}.test-card:hover{box-shadow:0 8px 30px #0000001f;transform:translateY(-5px)}.test-content{padding:25px}.test-title{color:#333;font-size:1.3rem;font-weight:600;line-height:1.4;margin-bottom:15px}.test-rating{align-items:center;display:flex;gap:10px;margin-bottom:20px}.star{font-size:1.2rem}.votes{font-size:.9rem}.test-actions{text-align:center}.btn-test{background:linear-gradient(135deg,#667eea,#764ba2);border-radius:25px;color:#fff;display:inline-block;font-size:.95rem;font-weight:600;padding:12px 30px;text-decoration:none;transition:all .3s ease}.btn-test:hover{box-shadow:0 5px 15px #667eea4d;transform:translateY(-2px)}.view-all-tests{text-align:center}@media (max-width:1024px){.tests-grid{gap:25px;grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}.section-title{font-size:2rem}}@media (max-width:768px){.mock-tests-section{padding:60px 0}.section-header{margin-bottom:40px}.section-title{font-size:1.8rem}.tests-grid{gap:20px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}.test-content{padding:20px}.test-title{font-size:1.2rem}}@media (max-width:480px){.mock-tests-section{padding:40px 0}.section-title{font-size:1.6rem}.tests-grid{gap:15px;grid-template-columns:1fr}.test-content{padding:15px}.test-title{font-size:1.1rem}.test-rating{gap:8px}.btn-test{font-size:.9rem;padding:10px 25px}}@media (max-width:400px){.mock-tests-section{padding:12px 0}.section-title{font-size:1.1rem}.test-content{padding:8px}.btn-outline,.btn-test{font-size:.9rem;padding:8px 12px}}.tips-section{background:#f8f9fa;padding:48px 0}.section-header{margin-bottom:32px}.section-title{color:#333;font-size:2.2rem;font-weight:700;margin-bottom:20px}.tips-grid{grid-gap:30px;display:grid;gap:30px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));margin-bottom:32px}.tip-card{background:#fff;border:1px solid #0000000d;border-radius:12px;box-shadow:0 4px 20px #00000014;overflow:hidden;transition:all .3s ease}.tip-card:hover{box-shadow:0 8px 30px #0000001f;transform:translateY(-5px)}.tip-header{padding:25px 25px 15px}.tip-title{margin-bottom:15px}.tip-title a{color:#333;display:block;font-size:1.3rem;font-weight:600;line-height:1.4;text-decoration:none}.tip-title a:hover{color:#667eea}.tip-rating{align-items:center;display:flex;gap:10px}.star.filled{color:#ffc107}.star.half{background:linear-gradient(90deg,#ffc107 50%,#ddd 0)}.rating-number{color:#333;font-size:1rem}.votes{font-size:.85rem}.tip-content{padding:0 25px 25px}.tip-excerpt{color:#555;font-size:.95rem;line-height:1.6;margin-bottom:20px}.tip-meta{align-items:center;border-top:1px solid #eee;display:flex;justify-content:space-between;padding-top:15px}.tip-category{font-size:.85rem;font-weight:600;text-transform:capitalize}.tip-views{color:#666;font-size:.85rem;font-weight:500}.see-more{text-align:center}.btn-outline{border:2px solid #667eea;border-radius:25px;color:#667eea;display:inline-block;font-weight:600;padding:12px 30px;text-decoration:none;transition:all .3s ease}.btn-outline:hover{background:#667eea}.iot-news-section{display:flex;justify-content:center;margin-top:32px}.iot-news-card{align-items:center;background:#fff;border-radius:14px;box-shadow:0 4px 20px #0000001a;display:flex;gap:18px;max-width:700px;padding:18px 24px;width:100%}.iot-news-img-wrap{align-items:center;background:#f3f4f6;border-radius:10px;display:flex;flex:0 0 72px;height:72px;justify-content:center;overflow:hidden;width:72px}.iot-news-img{border-radius:8px;height:60px;object-fit:contain;width:60px}.iot-news-content{display:flex;flex:1 1;flex-direction:column;justify-content:center}.iot-news-title{color:#223;font-size:1.1rem;font-weight:700;line-height:1.4;margin-bottom:8px}.iot-news-title a{color:#223;text-decoration:none;transition:color .2s}.iot-news-title a:hover{color:#2563eb}.iot-news-meta{align-items:center;color:#666;display:flex;font-size:.98rem;font-weight:500;gap:18px}.iot-news-rating{color:#fbbf24;font-weight:700}.iot-news-category{background:#e0e7ef;border-radius:8px;color:#2563eb;font-size:.95rem;font-weight:700;padding:2px 10px}.iot-news-views{color:#666}.iot-news-date{color:#888;font-size:.95rem}@media (max-width:1024px){.tips-grid{gap:25px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}.section-title{font-size:2rem}}@media (max-width:768px){.tips-section{padding:60px 0}.section-header{margin-bottom:40px}.section-title{font-size:1.8rem}.tips-grid{gap:20px;grid-template-columns:1fr}.tip-header{padding:20px 20px 10px}.tip-content{padding:0 20px 20px}.tip-title a{font-size:1.2rem}}@media (max-width:480px){.tips-section{padding:40px 0}.section-title{font-size:1.6rem}.tip-header{padding:15px 15px 10px}.tip-content{padding:0 15px 15px}.tip-title a{font-size:1.1rem}.tip-excerpt{font-size:.9rem}.tip-meta{align-items:flex-start;flex-direction:column;gap:10px}}@media (max-width:400px){.tips-section{padding:8px 0}.section-title{font-size:1rem}.tip-content,.tip-header{padding:0 4px}.tip-title a{font-size:.9rem}.tip-excerpt,.tip-meta,.votes{font-size:.8rem}}.features-section{background:linear-gradient(135deg,#e0e7ef,#f8fafc);padding:64px 0}.section-header{margin-bottom:40px;text-align:center}.section-title{color:#2563eb;font-size:2.7rem;font-weight:900;margin-bottom:24px}.features-grid{grid-gap:40px;display:grid;gap:40px;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));margin-bottom:32px}.feature-card{background:#fff;border:none;border-radius:28px;box-shadow:0 6px 32px #2563eb14;padding:40px 28px 32px;position:relative;text-align:center;transition:all .3s cubic-bezier(.4,2,.3,1)}.feature-card:hover{background:#fafdff;box-shadow:0 16px 48px #2563eb29;transform:translateY(-8px) scale(1.03)}.feature-card.card-accent{background:linear-gradient(135deg,#2563eb,#6ee7e7)!important;box-shadow:0 8px 32px #2563eb1a;color:#fff!important}.feature-card.card-accent .feature-description,.feature-card.card-accent .feature-title{color:#fff!important}.feature-image{border-radius:20px;box-shadow:0 4px 24px #2563eb1a;height:180px;margin-bottom:20px;overflow:hidden;width:100%}.feature-image img{border:none;border-radius:20px;height:100%;object-fit:cover;object-position:center;transition:transform .3s cubic-bezier(.4,2,.3,1);width:100%}.feature-card:hover .feature-image img{transform:scale(1.07)}.feature-title{color:#2563eb;font-size:1.35rem;font-weight:800;line-height:1.3;margin-bottom:14px}.feature-card.card-accent .feature-title{color:#fff!important}.feature-description{color:#4b5563;font-size:1.05rem;font-weight:500;line-height:1.7}.feature-card.card-accent .feature-description{color:#e0e7ef!important}.tag-accent{background:linear-gradient(90deg,#6ee7e7,#2563eb)!important;border-radius:12px;box-shadow:0 2px 8px #2563eb1a;display:inline-block;font-size:1rem;font-weight:700;letter-spacing:.5px;margin-top:12px;padding:4px 16px}.stats-section{background:linear-gradient(135deg,#667eea,#764ba2);border-radius:20px;color:#fff;overflow:hidden;padding:32px 0;position:relative;text-align:center}.stats-section:before{background:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1000 100' fill='rgba(255,255,255,0.1)'%3E%3Cpath d='M0 0h1000v100L0 80z'/%3E%3C/svg%3E");background-size:cover;bottom:0;content:"";left:0;position:absolute;right:0;top:0}.stats-title{font-size:2.2rem;font-weight:700;margin-bottom:40px}.stats-grid,.stats-title{position:relative;z-index:1}.stats-grid{grid-gap:30px;display:grid;gap:30px;grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}.stat-item{text-align:center}.stat-number{color:gold;font-size:2.5rem;font-weight:800;margin-bottom:8px;text-shadow:2px 2px 4px #0000004d}.stat-label{font-size:1.1rem;font-weight:600;opacity:.9}.tag-accent{background:#6ee7e7!important;border-radius:8px;color:#fff!important;font-weight:600;padding:2px 10px}@media (max-width:1024px){.features-grid{gap:30px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.section-title{font-size:2.2rem}.stats-title{font-size:2rem}}@media (max-width:768px){.features-section{padding:60px 0}.section-header{margin-bottom:40px}.section-title{font-size:2rem}.features-grid{gap:25px;grid-template-columns:1fr;margin-bottom:60px}.feature-card{padding:30px 20px}.feature-image{height:180px}.feature-title{font-size:1.3rem}.stats-section{padding:40px 20px}.stats-title{font-size:1.8rem}.stats-grid{gap:20px;grid-template-columns:repeat(auto-fit,minmax(120px,1fr))}.stat-number{font-size:2rem}.stat-label{font-size:1rem}}@media (max-width:480px){.features-section{padding:40px 0}.section-title{font-size:1.8rem}.feature-card{padding:25px 15px}.feature-image{height:160px}.feature-title{font-size:1.2rem}.feature-description{font-size:.95rem}.stats-section{padding:30px 15px}.stats-title{font-size:1.6rem}.stats-grid{gap:15px;grid-template-columns:repeat(2,1fr)}.stat-number{font-size:1.8rem}.stat-label{font-size:.9rem}}@media (max-width:400px){.features-section{padding:8px 0}.section-title{font-size:1.1rem}.feature-card{border-radius:10px;padding:8px 4px}.feature-title{font-size:.9rem}.feature-description{font-size:.8rem}.feature-image{border-radius:8px;height:60px}}body,html{height:100%;width:100%}input::-ms-clear,input::-ms-reveal{display:none}*,:after,:before{box-sizing:border-box}html{-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%;-ms-overflow-style:scrollbar;-webkit-tap-highlight-color:rgba(0,0,0,0);font-family:sans-serif;line-height:1.15}body{margin:0}[tabindex="-1"]:focus{outline:none}hr{box-sizing:initial;height:0;overflow:visible}h1,h2,h3,h4,h5,h6{font-weight:500;margin-bottom:.5em;margin-top:0}p{margin-bottom:1em;margin-top:0}abbr[data-original-title],abbr[title]{border-bottom:0;cursor:help;-webkit-text-decoration:underline dotted;text-decoration:underline dotted}address{font-style:normal;line-height:inherit;margin-bottom:1em}input[type=number],input[type=password],input[type=text],textarea{-webkit-appearance:none}dl,ol,ul{margin-bottom:1em;margin-top:0}ol ol,ol ul,ul ol,ul ul{margin-bottom:0}dt{font-weight:500}dd{margin-bottom:.5em;margin-left:0}blockquote{margin:0 0 1em}dfn{font-style:italic}b,strong{font-weight:bolder}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:initial}sub{bottom:-.25em}sup{top:-.5em}code,kbd,pre,samp{font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,Courier,monospace;font-size:1em}pre{margin-bottom:1em;margin-top:0;overflow:auto}figure{margin:0 0 1em}img{border-style:none;vertical-align:middle}[role=button],a,area,button,input:not([type=range]),label,select,summary,textarea{touch-action:manipulation}table{border-collapse:collapse}caption{caption-side:bottom;padding-bottom:.3em;padding-top:.75em;text-align:left}button,input,optgroup,select,textarea{color:inherit;font-family:inherit;font-size:inherit;line-height:inherit;margin:0}button,input{overflow:visible}button,select{text-transform:none}[type=reset],[type=submit],button,html [type=button]{-webkit-appearance:button}[type=button]::-moz-focus-inner,[type=reset]::-moz-focus-inner,[type=submit]::-moz-focus-inner,button::-moz-focus-inner{border-style:none;padding:0}input[type=checkbox],input[type=radio]{box-sizing:border-box;padding:0}input[type=date],input[type=datetime-local],input[type=month],input[type=time]{-webkit-appearance:listbox}textarea{overflow:auto;resize:vertical}fieldset{border:0;margin:0;min-width:0;padding:0}legend{color:inherit;display:block;font-size:1.5em;line-height:inherit;margin-bottom:.5em;max-width:100%;padding:0;white-space:normal;width:100%}progress{vertical-align:initial}[type=number]::-webkit-inner-spin-button,[type=number]::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:none;outline-offset:-2px}[type=search]::-webkit-search-cancel-button,[type=search]::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}output{display:inline-block}summary{display:list-item}template{display:none}[hidden]{display:none!important}mark{background-color:#feffe6;padding:.2em}.App{background:#f4f6fb;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;min-height:100vh;position:relative}*{box-sizing:border-box}body,html{overflow-x:hidden}body{background:#f4f6fb;color:#1a2233;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}.ant-layout-content,section{background:#fff}.bg-alt{background:#fafdff!important}section{padding:60px 0}.ant-card.card-accent,.card-accent{box-shadow:0 4px 24px #2563eb1f}.ant-card.card-accent,.card-accent,.card-accent .ant-card-head{background:#2563eb!important;border:none!important;color:#fff!important}.card-accent .ant-card-body{color:#fff!important}.section-title{-webkit-text-fill-color:#0000;background:linear-gradient(90deg,#2563eb,#6ee7e7);-webkit-background-clip:text;background-clip:text;font-weight:800}.badge-accent,.tag-accent{background:#6ee7e7!important;border-radius:8px;color:#2563eb!important;font-weight:600;padding:2px 10px}.ant-btn-primary,.btn-hero{background:linear-gradient(90deg,#2563eb,#6ee7e7)!important;border:none!important;box-shadow:0 2px 8px #2563eb26;color:#fff!important}.ant-btn-primary:hover,.btn-hero:hover{background:linear-gradient(90deg,#6ee7e7,#2563eb)!important;color:#fff!important}.ant-btn-default,.btn-secondary{background:#fff!important;border:2px solid #2563eb!important;color:#2563eb!important}.ant-btn-default:hover,.btn-secondary:hover{background:#2563eb!important;color:#fff!important}.ant-card,.ant-card .ant-card-body,.ant-card-bordered{background:#fff!important;border:1px solid #6ee7e7!important;color:#1a2233!important}.ant-card .ant-card-head{background:#2563eb!important;color:#fff!important}.ant-typography a,a{color:#2563eb}.ant-typography a:hover,a:hover{color:#6ee7e7}.ant-menu,.ant-menu-item,.ant-menu-root,.ant-menu-submenu-title{background:#fff!important;color:#1a2233!important}.ant-menu-item-active,.ant-menu-item-selected{background:#2563eb!important;color:#fff!important}.ant-layout-header{background:#fff!important;border-bottom:1px solid #6ee7e7!important;color:#1a2233!important}.ant-layout-footer{background:#2563eb!important;border-top:none!important;color:#fff!important}::-webkit-scrollbar-thumb{background:#2563eb}::-webkit-scrollbar-track{background:#f4f6fb}.accent,.ant-statistic-content-value,.ant-statistic-title,.anticon{color:#2563eb!important}.ant-card .ant-card-head,.bg-accent{background:#2563eb!important;color:#fff!important}.container{margin:0 auto;max-width:1200px;padding:0 20px}html{scroll-behavior:smooth}.btn{border:none;border-radius:25px;cursor:pointer;display:inline-block;font-size:1rem;font-weight:600;padding:12px 24px;text-align:center;text-decoration:none;transition:all .3s ease}.btn-primary{background:linear-gradient(135deg,#2563eb,#6ee7e7);color:#fff}.btn-primary:hover{background:linear-gradient(135deg,#6ee7e7,#2563eb);box-shadow:0 5px 15px #2563eb33;transform:translateY(-2px)}.btn-outline{background:#0000;border:2px solid #2563eb;color:#2563eb}.btn-outline:hover{background:#2563eb;color:#fff;transform:translateY(-2px)}main{padding-top:0;position:relative;z-index:1}@media (max-width:768px){.container{padding:0 16px}}@media (max-width:480px){.container{padding:0 12px}}:focus-visible{outline:2px solid #2563eb;outline-offset:2px}@media (max-width:768px){section{padding:40px 0}}.partner-section{background:#fff;padding:32px 0 16px}.partner-container,.partner-section{display:flex;justify-content:center;width:100%}.partner-container{align-items:flex-start;flex-direction:row;gap:32px;max-width:1200px}.partner-left{align-items:flex-start;display:flex;flex:0 0 320px;flex-direction:column;margin-top:16px}.partner-title{color:#183153;font-size:2.2rem;font-weight:700;margin-bottom:12px}.partner-desc{color:#183153;font-size:1rem;line-height:1.7;margin-bottom:0}.partner-logos{align-items:center;display:flex;flex:1 1;justify-content:flex-start}.partner-logos-grid{grid-gap:32px 48px;display:grid;gap:32px 48px;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(2,1fr);max-width:600px;width:100%}.partner-logo-item{align-items:center;display:flex;justify-content:center;min-height:60px}.partner-logo-img{filter:none;max-height:60px;max-width:180px;object-fit:contain}@media (max-width:900px){.partner-container{align-items:center;flex-direction:column;gap:32px}.partner-left{align-items:center;text-align:center}.partner-logos-grid{grid-template-columns:repeat(2,1fr);max-width:400px}}@media (max-width:600px){.partner-section{padding:32px 0 16px}.partner-logos-grid{gap:24px;grid-template-columns:1fr;max-width:220px}.partner-logo-img{max-height:40px;max-width:120px}}@media (max-width:400px){.partner-section{padding:12px 0 8px}.partner-title{font-size:1.1rem}.partner-logos-grid{gap:12px;max-width:120px}.partner-logo-img{max-height:20px;max-width:60px}}.review-slider-section{background:#f4f6fb;display:flex;justify-content:center;padding:48px 0 24px;width:100%}.review-slider-container{align-items:center;display:flex;flex-direction:column;margin:0 auto;max-width:1200px;width:100%}.review-slider-title{color:#1a2233;font-size:2.4rem;font-weight:800;margin-bottom:40px;text-align:center}.review-slider-list{align-items:stretch;display:flex;justify-content:center;margin-bottom:24px;min-height:220px;width:100%}.review-slider-item{align-items:center;flex-direction:column;justify-content:flex-start;left:0;margin:0 auto;max-width:400px;opacity:0;pointer-events:none;position:absolute;right:0;text-align:center;transition:opacity .3s;width:100%}.review-slider-item.active{opacity:1;pointer-events:auto;position:static}.review-slider-avatar{background:#e0e7ef;border-radius:50%;height:64px;margin-bottom:12px;object-fit:cover;width:64px}.review-slider-name{color:#2563eb;font-size:1.1rem;font-weight:600;margin-bottom:12px}.review-slider-content{color:#4b5563;font-size:1.15rem;font-style:italic;margin-bottom:0;min-height:72px}.review-slider-dots{display:flex;gap:10px;justify-content:center;margin:24px 0 32px}.review-slider-dot{background:#cbd5e1;border-radius:50%;cursor:pointer;display:inline-block;height:12px;transition:background .2s;width:12px}.review-slider-dot.active{background:#2563eb}.review-slider-btn{background:#2563eb;border:none;border-radius:8px;color:#fff;cursor:pointer;font-size:1.1rem;font-weight:700;margin-top:8px;padding:14px 48px;transition:background .2s}.review-slider-btn:hover{background:#1a2233}@media (max-width:900px){.review-slider-container{max-width:700px}.review-slider-item{margin:0 8px;max-width:90vw}}@media (max-width:600px){.review-slider-title{font-size:1.3rem;margin-bottom:24px}.review-slider-list{min-height:180px}.review-slider-avatar{height:48px;width:48px}.review-slider-content{font-size:1rem;min-height:48px}.review-slider-btn{font-size:1rem;padding:10px 24px}}@media (max-width:400px){.review-slider-title{font-size:.95rem;margin-bottom:10px}.review-slider-avatar{height:32px;width:32px}.review-slider-content{font-size:.85rem;min-height:24px}.review-slider-btn{font-size:.9rem;padding:6px 10px}}.ielts-tips-section{background:#294366;display:flex;justify-content:center;padding:56px 0 32px;width:100%}.ielts-tips-container{align-items:center;display:flex;flex-direction:column;margin:0 auto;max-width:1200px;width:100%}.ielts-tips-title{color:#fff;font-size:2.4rem;font-weight:800;margin-bottom:40px;text-align:center}.ielts-tips-grid{grid-gap:32px 32px;display:grid;gap:32px 32px;grid-template-columns:repeat(2,1fr);grid-template-rows:repeat(2,1fr);margin-bottom:32px;width:100%}.ielts-tip-card{align-items:flex-start;background:#fff;border-radius:20px;box-shadow:0 4px 24px #29436614;display:flex;flex-direction:row;gap:18px;min-height:170px;padding:24px 24px 20px;transition:box-shadow .2s,transform .2s}.ielts-tip-card:hover{box-shadow:0 8px 32px #29436629;transform:translateY(-4px)}.ielts-tip-img-wrap{align-items:center;background:#f4f6fb;border-radius:12px;display:flex;flex:0 0 80px;height:80px;justify-content:center;overflow:hidden;width:80px}.ielts-tip-img{border-radius:12px;height:100%;object-fit:cover;width:100%}.ielts-tip-content{align-items:flex-start;display:flex;flex:1 1;flex-direction:column;min-width:0}.ielts-tip-title{color:#1a2233;font-size:1.25rem;font-weight:700;line-height:1.3;margin-bottom:6px}.ielts-tip-rating{align-items:center;display:flex;gap:6px;margin-bottom:8px}.rating-number{font-size:1.1rem}.ielts-tip-excerpt{color:#4b5563;font-size:1rem;line-height:1.5;margin-bottom:10px;max-width:420px}.ielts-tip-meta{align-items:center;display:flex;font-size:.98rem;gap:18px;margin-top:2px}.ielts-tip-category{font-weight:600}.ielts-tip-views{align-items:center;color:#4b5563;display:flex;gap:2px}.ielts-tips-btn-wrap{display:flex;justify-content:center;width:100%}.ielts-tips-btn{background:#fbbf24;border:none;border-radius:8px;color:#1a2233;cursor:pointer;font-size:1.1rem;font-weight:700;margin-top:8px;padding:14px 48px;transition:background .2s}.ielts-tips-btn:hover{background:#f59e42}@media (max-width:900px){.ielts-tips-container{max-width:700px}.ielts-tips-grid{gap:18px 0;grid-template-columns:1fr;grid-template-rows:repeat(4,1fr)}}@media (max-width:600px){.ielts-tips-title{font-size:1.3rem;margin-bottom:24px}.ielts-tips-section{padding:32px 0 16px}.ielts-tip-card{min-height:120px;padding:14px 10px 12px}.ielts-tip-img-wrap{height:56px;width:56px}.ielts-tip-title{font-size:1rem}.ielts-tip-excerpt{font-size:.95rem;max-width:220px}.ielts-tips-btn{font-size:1rem;padding:10px 24px}}@media (max-width:400px){.ielts-tips-title{font-size:.95rem;margin-bottom:10px}.ielts-tip-card{border-radius:8px;padding:8px}.ielts-tip-title{font-size:.9rem}.ielts-tip-excerpt,.ielts-tip-meta,.votes{font-size:.8rem}.ielts-tip-img-wrap{height:40px;width:40px}}.latest-ielts-tests-section{background:#f4f6fb;display:flex;justify-content:center;padding:48px 0 24px;width:100%}.latest-ielts-tests-container{align-items:center;display:flex;flex-direction:column;margin:0 auto;max-width:1300px;width:100%}.latest-ielts-tests-title{color:#294366;font-size:2.3rem;font-weight:800;margin-bottom:32px;text-align:center}.latest-ielts-tests-grid{grid-gap:32px;display:grid;gap:32px;grid-template-columns:repeat(4,1fr);justify-items:center;width:100%}.latest-ielts-test-card{align-items:center;background:#fff;border-radius:10px;box-shadow:0 4px 24px #29436614;display:flex;flex-direction:column;max-width:260px;min-width:220px;padding:18px 8px 12px;transition:box-shadow .2s,transform .2s;width:100%}.latest-ielts-test-card:hover{box-shadow:0 8px 32px #29436629;transform:translateY(-4px)}.latest-ielts-test-img-wrap{align-items:center;background:#e0e7ef;border-radius:8px;display:flex;height:220px;justify-content:center;margin-bottom:12px;overflow:hidden;width:220px}.latest-ielts-test-img{border-radius:8px;height:100%;object-fit:cover;width:100%}.latest-ielts-test-title2{color:#1a2233;font-size:1.08rem;font-weight:700;margin-bottom:8px;min-height:44px;text-align:center}.latest-ielts-test-rating{align-items:center;color:#fbbf24;display:flex;font-size:1rem;gap:6px;margin-bottom:0}.rating-number{color:#fbbf24;font-size:1.05rem;font-weight:600}.stars{display:flex;gap:2px}.star{color:#ddd;font-size:1.1rem}.star.filled{color:#fbbf24}.star.half{-webkit-text-fill-color:#0000;background:linear-gradient(90deg,#fbbf24 50%,#ddd 0);-webkit-background-clip:text;background-clip:text}.star.empty{color:#ddd}.votes{color:#666;font-size:.95rem}@media (max-width:1100px){.latest-ielts-tests-grid{gap:24px;grid-template-columns:repeat(2,1fr)}}@media (max-width:700px){.latest-ielts-tests-grid{gap:18px;grid-template-columns:1fr}.latest-ielts-test-img-wrap{height:90vw;max-height:320px;max-width:320px;width:90vw}}@media (max-width:400px){.latest-ielts-tests-title{font-size:1rem;margin-bottom:8px}.latest-ielts-test-img-wrap{height:60vw;max-height:120px;max-width:120px;width:60vw}.latest-ielts-test-title2{font-size:.85rem;min-height:20px}}.tips-page{background:linear-gradient(135deg,#f5f7fa,#c3cfe2);min-height:100vh}.tips-header{background:#fff;border-radius:16px;box-shadow:0 4px 20px #00000014;margin-bottom:32px;padding:40px;text-align:center}.tips-card{border-radius:16px;box-shadow:0 4px 20px #0000000f;cursor:pointer;height:100%;overflow:hidden;transition:all .3s ease}.tips-card:hover{box-shadow:0 8px 30px #0000001f;transform:translateY(-4px)}.tips-card-cover{align-items:center;display:flex;height:200px;justify-content:center;overflow:hidden;position:relative}.tips-card-tag{border-radius:20px;font-size:12px;font-weight:600;padding:4px 12px;position:absolute;right:16px;top:16px}.tips-card-title{-webkit-line-clamp:2;line-clamp:2;color:#1a1a1a;font-size:1.1rem;height:60px;line-height:1.4;margin-bottom:12px}.tips-card-summary,.tips-card-title{-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.tips-card-summary{-webkit-line-clamp:3;line-clamp:3;color:#666;font-size:.9rem;height:66px;line-height:1.5;margin-bottom:16px}.tips-card-meta{align-items:center;border-top:1px solid #f0f0f0;color:#999;display:flex;font-size:12px;justify-content:space-between;padding-top:12px}.tips-detail-page{background:linear-gradient(135deg,#f5f7fa,#c3cfe2);min-height:100vh;padding:24px 0}.tips-detail-header{background:#fff;border-radius:16px;box-shadow:0 4px 20px #00000014;margin-bottom:32px;overflow:hidden}.tips-detail-hero{border-radius:16px 16px 0 0;margin:-24px -24px 32px;padding:40px 24px;text-align:center}.tips-detail-content{color:#333;font-size:16px;line-height:1.8}.tips-detail-content h2{font-size:1.5rem;font-weight:700;margin-bottom:16px;margin-top:32px}.tips-detail-content h3{color:#333;font-size:1.3rem;font-weight:600;margin-bottom:12px;margin-top:24px}.tips-detail-content p{margin-bottom:16px;text-align:justify}.tips-detail-content ol,.tips-detail-content ul{margin-bottom:16px;padding-left:24px}.tips-detail-content li{margin-bottom:8px}.tips-detail-content strong{font-weight:600}.tips-tags{margin-bottom:16px}.tips-tag{background:#f0f0f0;border:none;border-radius:12px;color:#666;font-size:11px;padding:2px 8px}.tips-action-buttons{display:flex;gap:16px;justify-content:center;margin-bottom:32px}.tips-like-btn,.tips-share-btn{border-radius:20px}.tips-related-card{border-radius:12px;cursor:pointer}.tips-related-card:hover{box-shadow:0 6px 20px #0000001a;transform:translateY(-2px)}.tips-related-cover{align-items:center;border-radius:12px 12px 0 0;display:flex;height:80px;justify-content:center;margin:-12px -12px 12px}.tips-related-title{-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;display:-webkit-box;font-size:14px;height:40px;line-height:1.4;margin-bottom:8px;overflow:hidden}.tips-meta-info{color:#666;display:flex;flex-wrap:wrap;font-size:14px;gap:24px;justify-content:center}.tips-empty-state{background:#fff;border-radius:16px;box-shadow:0 4px 20px #0000000f;padding:60px 20px;text-align:center}.tips-search-bar{margin:0 auto;max-width:500px}.tips-search-bar .ant-input{border-radius:25px 0 0 25px}.tips-search-bar .ant-btn{border-radius:0 25px 25px 0}@media (max-width:768px){.tips-header{padding:24px}.tips-detail-hero{padding:24px 16px}.tips-meta-info{flex-direction:column;gap:12px}.tips-action-buttons{flex-wrap:wrap}.tips-search-bar{max-width:100%}}
/*# sourceMappingURL=main.f375f2d1.css.map*/