.header{position:fixed;top:0;left:0;right:0;z-index:1000;background:#e3f2fde0;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);transition:all .3s ease;border-bottom:1px solid transparent}.header--scrolled{background:#e3f2fdfa;border-bottom-color:#4fc3f72e;box-shadow:0 6px 16px -6px #4fc3f738}.header__container{display:flex;align-items:center;justify-content:space-between;padding:1.25rem 1.5rem;min-height:84px;max-width:1280px;margin:0 auto}.header--scrolled .header__container{padding:.75rem 1.5rem;min-height:64px}.header__logo{display:flex;align-items:center;gap:.875rem;cursor:pointer;transition:transform .3s ease}.header__logo:hover{transform:translateY(-1px)}.header__logo-img{width:3rem;height:3rem;object-fit:contain}.header--scrolled .header__logo-img{width:2.25rem;height:2.25rem}.header__logo-text-wrapper{display:flex;flex-direction:column;gap:.125rem}.header__logo-text{font-size:1.6rem;font-weight:800;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1;letter-spacing:.01em}.header__logo-sub{font-size:.65rem;color:var(--primary);text-transform:uppercase;letter-spacing:.12em;font-weight:700}.header__nav{display:flex;gap:2.25rem;align-items:center}.header__link{color:var(--dark);font-weight:600;font-size:1rem;position:relative;transition:color .25s ease}.header__link:hover{color:var(--primary)}.header__link:after{content:"";position:absolute;bottom:-.25rem;left:0;width:0;height:2px;background:var(--primary);transition:width .25s ease}.header__link:hover:after{width:100%}.header__actions{display:flex;gap:1rem;align-items:center}.header__download-wrapper{position:relative}.header__btn{padding:.75rem 1.75rem;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:var(--white);border-radius:2rem;font-weight:700;font-size:.95rem;transition:all .25s ease;box-shadow:0 6px 14px -4px #4b67d259;display:flex;align-items:center;gap:.5rem;white-space:nowrap}.header--scrolled .header__btn{padding:.625rem 1.5rem}.header__btn:hover{box-shadow:0 14px 24px -8px #4b67d273;transform:translateY(-1px)}.header__arrow{font-size:.625rem;transition:transform .25s ease}.header__arrow--open{transform:rotate(180deg)}.header__dropdown{position:absolute;top:calc(100% + .5rem);right:0;background:var(--white);border-radius:1rem;box-shadow:0 10px 25px -5px #4a90e247;padding:.5rem;min-width:10rem;z-index:100;border:1px solid rgba(74,144,226,.12)}.header__dropdown-item{display:flex;align-items:center;gap:.75rem;padding:.75rem 1rem;border-radius:.75rem;color:var(--dark);font-size:.9rem;font-weight:600;transition:all .25s ease}.header__dropdown-item:hover{background:linear-gradient(135deg,#4a90e214,#6ba5ef14);color:var(--primary)}.header__dropdown-item img{width:1.25rem;height:1.25rem;object-fit:contain}.header__burger{display:none;flex-direction:column;gap:.375rem;padding:.5rem;cursor:pointer}.header__burger span{width:1.5rem;height:2px;background:var(--primary);border-radius:2px;transition:all .25s ease}@media (max-width:768px){.header__nav{position:fixed;top:calc(var(--header-offset,72px) + .5rem);left:0;right:0;background:var(--white);flex-direction:column;padding:2rem;gap:1.5rem;box-shadow:0 10px 15px -3px #4b67d226;transform:translateY(-120%);opacity:0;transition:all .3s ease;z-index:999}.header__nav--open{transform:translateY(0);opacity:1}.header__burger{display:flex}.header__burger.active span:nth-child(1){transform:rotate(45deg) translateY(.5rem)}.header__burger.active span:nth-child(2){opacity:0}.header__burger.active span:nth-child(3){transform:rotate(-45deg) translateY(-.5rem)}}@media (max-width:600px){.header__container{padding:.6rem 1rem;min-height:64px}.header__actions{gap:.5rem}.header__btn{padding:.5rem 1rem;font-size:.85rem}.header__logo-sub{display:none}.header__logo-img{width:2.5rem;height:2.5rem}.header__nav{top:calc(var(--header-offset,64px) + .25rem)}}.footer{background:linear-gradient(180deg,var(--dark) 0%,var(--dark-alt) 100%);color:var(--white);padding-top:4rem}.footer__top{padding-bottom:3rem;border-bottom:1px solid rgba(255,255,255,.1)}.footer__grid{display:grid;grid-template-columns:2fr 1fr 1.5fr 1.5fr;gap:3rem}.footer__brand-name{font-size:2rem;font-weight:800;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:1rem}.footer__brand-desc{font-size:.9375rem;line-height:1.8;opacity:.8;margin-bottom:2rem}.footer__contact{display:flex;flex-direction:column;gap:.75rem;font-size:.875rem;opacity:.9}.footer__title{font-size:1.125rem;font-weight:700;margin-bottom:1.5rem;color:var(--white)}.footer__links{list-style:none;display:flex;flex-direction:column;gap:.75rem}.footer__links a{color:var(--white);opacity:.7;font-size:.9375rem;transition:all .3s ease;display:inline-block;text-decoration:none}.footer__links a:hover{opacity:1;color:var(--secondary);transform:translate(5px)}.footer__contact-section{display:flex;flex-direction:column}.footer__contact-label{font-size:.875rem;opacity:.7;margin-bottom:.5rem}.footer__qr-container{position:relative;display:inline-block}.footer__qr-trigger{display:flex;align-items:center;gap:.5rem;padding:.75rem 1rem;background:#ffffff1a;border-radius:.75rem;border:1px solid rgba(255,255,255,.1);cursor:pointer;transition:all .3s ease}.footer__qr-trigger:hover{background:#ffffff26;border-color:var(--secondary)}.footer__qr-icon{font-size:1.25rem}.footer__qr-popup{position:absolute;bottom:100%;left:50%;transform:translate(-50%);margin-bottom:10px;background:#fff;padding:15px;border-radius:12px;box-shadow:0 8px 24px #0003;z-index:1000;min-width:150px;animation:fadeInUp .3s ease}.footer__qr-popup:after{content:"";position:absolute;top:100%;left:50%;transform:translate(-50%);border:8px solid transparent;border-top-color:#fff}.footer__qr-popup img{width:150px;height:150px;display:block}.footer__qr-popup p{color:#1a1f36;text-align:center;margin:0}@keyframes fadeInUp{0%{opacity:0;transform:translate(-50%) translateY(10px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.footer__social{display:flex;gap:.75rem;margin-bottom:2rem;flex-wrap:wrap}.footer__social-item{position:relative}.footer__social-link{padding:.75rem 1rem;background:#ffffff1a;border-radius:.75rem;display:flex;align-items:center;gap:.5rem;color:var(--white);font-size:.875rem;font-weight:600;transition:all .3s ease;border:1px solid rgba(255,255,255,.1);cursor:pointer}.footer__social-icon{font-size:1.25rem}.footer__social-link:hover{background:var(--primary);border-color:var(--primary);box-shadow:0 4px 6px -1px #4b67d280}.footer__download p{font-size:.875rem;margin-bottom:.75rem;opacity:.9}.footer__download-btns{display:flex;gap:.75rem}.footer__download-btn{width:3rem;height:3rem;background:#ffffff1a;border-radius:.75rem;display:flex;align-items:center;justify-content:center;transition:all .3s ease;border:1px solid rgba(255,255,255,.1)}.footer__download-btn img{width:1.5rem;height:1.5rem;object-fit:contain;filter:brightness(0) invert(1)}.footer__download-btn:hover{background:#ffffff26;transform:translateY(-3px)}.footer__bottom{padding:2rem 0}.footer__bottom-content{text-align:center;font-size:.875rem;opacity:.7;line-height:1.8}.footer__bottom-content a{color:var(--white);text-decoration:none;transition:all .3s ease}.footer__bottom-content a:hover{color:var(--secondary)}@media (max-width: 768px){.footer__grid{grid-template-columns:1fr;gap:2.5rem}.footer__social{justify-content:flex-start}.footer__qr-popup{left:0;transform:none}.footer__qr-popup:after{left:50px}}.hero{position:relative;min-height:min(80vh,720px);display:flex;align-items:flex-start;padding:calc(var(--header-offset,72px) + 1rem) 0 3rem;overflow:hidden;background:linear-gradient(180deg,#e3f2fd,#fff)}.hero__container{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center;position:relative;z-index:2}.hero__badge{display:inline-block;padding:.5rem 1.25rem;background:linear-gradient(135deg,#4a90e21a,#6ba5ef1a);color:var(--primary);border-radius:2rem;font-size:.875rem;font-weight:600;margin-bottom:1.5rem;border:1px solid rgba(74,144,226,.2)}.hero__title{font-size:clamp(2.2rem,4.5vw,3.5rem);font-weight:800;line-height:1.2;margin-bottom:1.5rem;color:var(--dark)}.hero__title-highlight{background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero__desc{font-size:clamp(1rem,1.1vw + .2rem,1.25rem);color:var(--dark-alt);line-height:1.8;margin-bottom:2rem;opacity:.9}.hero__actions{display:flex;gap:1rem;margin-bottom:3rem}.hero__btn{padding:1rem 2rem;border-radius:3rem;font-weight:600;font-size:1rem;transition:all .3s ease;display:inline-flex;align-items:center;justify-content:center;gap:.5rem}.hero__btn-icon{width:1.5rem;height:1.5rem;object-fit:contain}.hero__btn--primary{background:linear-gradient(135deg,var(--auxiliary-cyan),var(--primary));color:var(--white);box-shadow:0 10px 15px -3px #4fc3f766}.hero__btn--secondary{border:2px solid var(--primary);color:var(--primary);background:transparent}.hero__btn--secondary:hover{background:var(--primary);color:var(--white)}.hero__stats{display:flex;gap:3rem}.hero__stat{display:flex;flex-direction:column}.hero__stat-number{font-size:2rem;font-weight:800;background:linear-gradient(135deg,var(--primary-dark),var(--auxiliary-cyan));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1}.hero__stat-label{font-size:.875rem;color:var(--dark-alt);margin-top:.5rem}.hero__image-wrapper{position:relative}.hero__image-card{background:var(--white);border-radius:1.5rem;padding:1rem;box-shadow:0 20px 25px -5px #4a90e226;overflow:hidden}.hero__image-card img{border-radius:1rem;width:100%;height:auto}.hero__float{position:absolute;background:var(--white);padding:.75rem 1.25rem;border-radius:1rem;box-shadow:0 10px 15px -3px #4a90e233;display:flex;align-items:center;gap:.75rem;font-size:.875rem;font-weight:600;color:var(--dark)}.hero__float--orange{background:linear-gradient(135deg,#4fc3f71f,#5dade21f);border:1px solid rgba(79,195,247,.3);box-shadow:0 10px 15px -3px #4fc3f740}.hero__float-icon{font-size:1.5rem}.hero__float--1{top:10%;right:-10%;transform:translateY(-50%)}.hero__float--2{bottom:15%;left:-10%}.hero__bg{position:absolute;top:0;right:0;bottom:0;left:0;z-index:1;overflow:hidden;pointer-events:none}.hero__bg-circle{position:absolute;border-radius:50%;background:radial-gradient(circle,#4a90e21f,#4a90e200 70%);animation:float 20s infinite ease-in-out}.hero__bg-circle--1{width:40rem;height:40rem;top:-20%;right:-10%;animation-delay:0s}.hero__bg-circle--2{width:30rem;height:30rem;bottom:-15%;left:-5%;animation-delay:-10s}@keyframes float{0%,to{transform:translate(0) scale(1)}50%{transform:translate(20px,-20px) scale(1.05)}}@media (max-width:768px){.hero{padding:calc(var(--header-offset,64px) + 1.25rem) 0 2rem;min-height:auto}.hero__container{grid-template-columns:1fr;gap:3rem}.hero__actions{flex-direction:column}.hero__btn{width:100%}.hero__stats{justify-content:space-between;gap:1.5rem}.hero__stat-number{font-size:1.5rem}.hero__float--1{right:0;top:5%}.hero__float--2{left:0;bottom:10%}.hero__badge{display:none}}.courses{padding:6rem 0;background:linear-gradient(180deg,#fff,#e3f2fd)}.courses__header{text-align:center;margin-bottom:3rem}.courses__title{font-size:2.75rem;font-weight:800;color:var(--dark);margin-bottom:1rem}.courses__subtitle{font-size:1.125rem;color:var(--dark-alt);opacity:.8}.courses__filters{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap;margin-bottom:3rem}.courses__filter{padding:.625rem 1.5rem;border-radius:2rem;border:2px solid rgba(74,144,226,.2);color:var(--dark);font-weight:600;font-size:.875rem;transition:all .3s ease;background:transparent}.courses__filter:hover{border-color:var(--primary);color:var(--primary)}.courses__filter--active{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:var(--white);border-color:transparent;box-shadow:0 4px 6px -1px #4a90e24d}.courses__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:2rem;margin-bottom:3rem}.course-card{background:var(--white);border-radius:1.25rem;overflow:hidden;transition:all .3s ease;box-shadow:0 4px 6px -1px #4a90e21a;border:1px solid rgba(74,144,226,.05)}.course-card__image{position:relative;height:200px;background:linear-gradient(135deg,#4a90e21a,#6ba5ef1a);display:flex;align-items:center;justify-content:center;overflow:hidden}.course-card__image img{width:80px;height:80px;object-fit:contain}.course-card__badge{position:absolute;top:1rem;right:1rem;padding:.375rem .875rem;background:linear-gradient(135deg,var(--auxiliary-cyan),var(--secondary));border-radius:1rem;font-size:.75rem;font-weight:600;color:var(--white);box-shadow:0 2px 4px #4fc3f74d}.course-card__content{padding:1.5rem}.course-card__title{font-size:1.25rem;font-weight:700;color:var(--dark);margin-bottom:.5rem;line-height:1.4}.course-card__instructor{font-size:.875rem;color:var(--dark-alt);margin-bottom:1rem;opacity:.8}.course-card__meta{display:flex;gap:1.5rem;margin-bottom:1rem;font-size:.875rem;color:var(--dark-alt)}.course-card__price{display:flex;flex-direction:column;gap:.25rem;padding:1rem 0;border-top:1px solid rgba(74,144,226,.1);border-bottom:1px solid rgba(74,144,226,.1);margin-bottom:1rem}.course-card__price-full{font-size:1.25rem;font-weight:700;color:var(--primary)}.course-card__price-monthly{font-size:.875rem;color:var(--dark-alt);opacity:.8}.course-card__features{list-style:none;margin-bottom:1.5rem;display:flex;flex-direction:column;gap:.5rem}.course-card__features li{display:flex;align-items:center;gap:.5rem;font-size:.875rem;color:var(--dark-alt)}.course-card__features svg{color:var(--primary);flex-shrink:0}.course-card__btn{width:100%;padding:.875rem;background:linear-gradient(135deg,var(--auxiliary-cyan),var(--primary));color:var(--white);border-radius:.75rem;font-weight:600;transition:all .3s ease;box-shadow:0 4px 6px -1px #4fc3f74d}.course-card__btn:hover{box-shadow:0 10px 15px -3px #4fc3f780;transform:translateY(-2px)}.courses__cta{text-align:center}.courses__cta-link{font-size:1.125rem;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:.5rem;transition:gap .3s ease}.courses__cta-link:hover{gap:1rem}@media (max-width:768px){.courses{padding:4rem 0}.courses__title{font-size:2rem}.courses__grid{grid-template-columns:1fr}}.features{padding:6rem 0;background:var(--white)}.features__header{text-align:center;margin-bottom:4rem}.features__title{font-size:2.75rem;font-weight:800;color:var(--dark);margin-bottom:.5rem}.features__subtitle{font-size:1rem;color:var(--primary);text-transform:uppercase;letter-spacing:.1em;font-weight:600}.features__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem}.feature-card{background:linear-gradient(180deg,#fff,#e3f2fd);border-radius:1.25rem;padding:2rem;text-align:center;transition:all .3s ease;border:1px solid rgba(74,144,226,.1);box-shadow:0 4px 6px -1px #4a90e20d}.feature-card:hover{box-shadow:0 20px 25px -5px #4a90e226;border-color:#4a90e233}.feature-card__icon{width:80px;height:80px;margin:0 auto 1.5rem;background:linear-gradient(135deg,var(--primary),var(--secondary));border-radius:1.25rem;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 15px -3px #4a90e24d}.feature-card__icon--orange{background:linear-gradient(135deg,var(--auxiliary-cyan),var(--secondary));box-shadow:0 10px 15px -3px #4fc3f766}.feature-card--highlight{border-color:#4fc3f740}.feature-card__icon img{width:48px;height:48px;object-fit:contain;filter:brightness(0) invert(1)}.feature-card__title{font-size:1.25rem;font-weight:700;color:var(--dark);margin-bottom:.75rem}.feature-card__desc{font-size:.9375rem;color:var(--dark-alt);line-height:1.6;opacity:.8}@media (max-width:768px){.features{padding:4rem 0}.features__title{font-size:2rem}.features__grid{grid-template-columns:1fr;gap:1.5rem}}.media-coverage{padding:80px 0;background:linear-gradient(135deg,#f5f7ff,#fff)}.media-coverage__header{text-align:center;margin-bottom:60px}.media-coverage__title{font-size:36px;font-weight:700;color:#1a1f36;margin-bottom:12px}.media-coverage__subtitle{font-size:16px;color:#8f9399;text-transform:uppercase;letter-spacing:2px}.media-coverage__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px;max-width:1200px;margin:0 auto}.media-card{background:#fff;border-radius:16px;padding:30px;box-shadow:0 4px 20px #00000014;transition:all .3s ease;text-decoration:none;color:inherit;display:flex;flex-direction:column;gap:20px;cursor:pointer}.media-card:hover{box-shadow:0 8px 30px #4b67d226}.media-card__logo{height:60px;display:flex;align-items:center}.media-card__logo img{max-height:100%;max-width:100%;object-fit:contain}.media-card__title{font-size:18px;font-weight:600;color:#1a1f36;line-height:1.5;flex:1;min-height:80px}.media-card__source{display:flex;justify-content:space-between;align-items:center;color:#4b67d2;font-size:14px;font-weight:500;padding-top:20px;border-top:1px solid #eee}.media-card__arrow{font-size:20px;transition:transform .3s ease}.media-card:hover .media-card__arrow{transform:translate(5px)}@media (max-width: 768px){.media-coverage{padding:60px 0}.media-coverage__title{font-size:28px}.media-coverage__grid{grid-template-columns:1fr;gap:20px}.media-card{padding:24px}.media-card__title{font-size:16px;min-height:auto}}.showcase{padding:40px 0;background:linear-gradient(180deg,#f6fbff,#fff)}.showcase__header{text-align:center;margin-bottom:24px}.showcase__title{font-size:28px;font-weight:800;color:#1a1f36;margin:0 0 4px}.showcase__subtitle{margin:0;color:#475569;opacity:.9}.showcase__tabs{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:16px}.showcase__tab{border:1px solid #c7d2fe;background:#fff;color:#3852b2;border-radius:999px;padding:8px 14px;font-weight:600}.showcase__tab--active{background:#4b67d2;color:#fff;border-color:#4b67d2}.showcase__viewport{position:relative}.showcase__track{display:flex;gap:12px;overflow-x:auto;scroll-snap-type:x mandatory;padding:8px 8px 4px;justify-content:center}.showcase__track::-webkit-scrollbar{height:8px}.showcase__track::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:8px}.showcase__item{min-width:min(40vw,520px);scroll-snap-align:center;background:#fff;border:1px solid #e2e8f0;border-radius:16px;padding:8px;box-shadow:0 8px 24px -8px #3852b229}.showcase__item img{width:100%;height:auto;max-height:52vh;object-fit:contain;border-radius:12px;display:block}.showcase__nav{position:absolute;top:50%;transform:translateY(-50%);background:#fffc;border:1px solid #e2e8f0;border-radius:999px;width:36px;height:36px;display:flex;align-items:center;justify-content:center;font-size:22px;color:#334155}.showcase__nav--left{left:-6px}.showcase__nav--right{right:-6px}@media (max-width: 768px){.showcase{padding:40px 0}.showcase__item{min-width:82vw}}.showcase__lightbox{position:fixed;top:0;right:0;bottom:0;left:0;z-index:9999;background:#0f172acc;display:flex;align-items:center;justify-content:center;padding:24px}.showcase__lightbox img{max-width:92vw;max-height:92vh;border-radius:12px;box-shadow:0 20px 40px -12px #00000080}.showcase__lightbox-close{position:fixed;top:16px;right:16px;width:36px;height:36px;border-radius:999px;background:#fffc;border:1px solid #e2e8f0;display:flex;align-items:center;justify-content:center;font-size:20px;color:#0f172a}.legal-page{background:transparent;padding-top:calc(var(--header-offset, 72px) + 1rem)}@media (max-width: 768px){.legal-page{padding-top:calc(var(--header-offset, 64px) + 1.25rem)}}.legal-page .container{max-width:720px;margin:0 auto;padding:24px 16px 48px}.legal-card{background:var(--white, #fff);border-radius:12px;padding:24px 20px;margin-bottom:20px;box-shadow:0 1px 6px #00000014}.legal-title{margin:0 0 16px;color:#444;font-size:24px;text-align:center;font-weight:700}.legal-subtitle{margin:16px 0;color:#444;font-size:18px;font-weight:700;border-left:4px solid var(--primary, #4A90E2);padding-left:12px}.legal-text{font-size:15px;color:#666;margin:0 0 16px;line-height:1.7}.legal-list{padding-left:20px;margin:0 0 16px}.legal-list li{margin-bottom:10px;font-size:15px;color:#555}.legal-strong{color:var(--primary, #4A90E2);font-weight:600}.legal-footer{font-size:12px;text-align:center;color:#999;padding-top:24px;border-top:1px solid #e0e0e0;margin-top:32px}.legal-links a{color:var(--primary, #4A90E2);text-decoration:none}.legal-links a:hover,.legal-links a:focus{text-decoration:underline}:root{--klein-blue: #002fa7;--klein-blue-600: #0a2e9b;--text: #0b1020;--text-subtle: #5b6275;--bg: #f5f7fb;--card: #ffffff;--border: #e6e9f2;--radius: 16px}*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,PingFang SC,Hiragino Sans GB,Microsoft Yahei,sans-serif;color:var(--text);background:linear-gradient(180deg,rgba(0,47,167,.08),transparent 32%) no-repeat,var(--bg)}.share-page{min-height:100%;display:flex;flex-direction:column}.share-header{height:56px;display:flex;align-items:center;padding:0 20px}.brand{display:inline-flex;align-items:center;gap:10px}.brand__dot{width:14px;height:14px;background:var(--klein-blue);border-radius:50%}.brand__name{font-weight:700;color:var(--klein-blue);letter-spacing:.02em}.share-main{flex:1;display:flex;flex-direction:column;align-items:center;padding:16px}.share-card{width:100%;max-width:680px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:0 6px 18px #0000000f}.share-tag{display:inline-flex;align-items:center;padding:6px 10px;font-size:12px;border-radius:999px;background:#002fa714;color:var(--klein-blue);font-weight:600}.media{position:relative;width:100%;margin:16px 0 20px;border-radius:14px;overflow:hidden;background:linear-gradient(135deg,#002fa72e,#002fa70f);border:1px solid var(--border)}.media__img{width:100%;height:100%;object-fit:cover;display:none}.media__fallback{position:relative;width:100%;height:100%;display:grid;place-items:center;color:#fff;font-weight:700;letter-spacing:.02em}.media__fallback span{font-size:28px;opacity:.96}.scene-course .media{aspect-ratio:16 / 9}.scene-course .media__fallback{background:linear-gradient(160deg,var(--klein-blue),var(--klein-blue-600))}.scene-teacher .media{width:180px;height:180px;border-radius:50%;margin-left:auto;margin-right:auto}.scene-teacher .media__fallback{background:linear-gradient(160deg,var(--klein-blue),var(--klein-blue-600))}.scene-teacher .media__img{border-radius:50%}.share-title{margin:6px 0 8px;font-size:22px;line-height:1.35;font-weight:700;word-break:break-word}.share-subtitle{margin:0 0 18px;font-size:14px;color:var(--text-subtle)}.cta{width:100%;display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;border:none;border-radius:12px;background:var(--klein-blue);color:#fff;font-size:16px;font-weight:700;cursor:pointer;transition:transform .02s ease,box-shadow .2s ease;box-shadow:0 6px 16px #002fa740}.cta:active{transform:translateY(1px)}.tips{margin-top:10px;font-size:12px;color:var(--text-subtle);text-align:center}.share-extra{width:100%;max-width:680px;display:flex;justify-content:center;padding:12px 0 8px}.download{color:var(--klein-blue);text-decoration:none;font-weight:600;border:1px solid rgba(0,47,167,.2);padding:8px 14px;border-radius:10px;background:#002fa70f}.download:hover{background:#002fa71a}.share-footer{display:flex;justify-content:center;align-items:center;height:56px;color:var(--text-subtle);font-size:12px}@media (min-width: 768px){.share-card{padding:28px}.share-title{font-size:24px}}.wx-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:9999;display:none;align-items:flex-start;justify-content:center;padding:16px;background:#000000ad}.wx-tip{width:100%;max-width:560px;margin-top:32px;background:#fff;color:var(--text);border-radius:16px;padding:20px;box-shadow:0 12px 32px #00000038;position:relative}.wx-arrow{position:absolute;top:-16px;right:24px;width:0;height:0;border-left:10px solid transparent;border-right:10px solid transparent;border-bottom:16px solid #fff}.wx-title{font-weight:800;font-size:18px;margin-bottom:8px;color:var(--klein-blue)}.wx-desc{margin:0 0 12px;font-size:14px;color:var(--text-subtle)}.wx-actions{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:8px}.wx-btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:none;border-radius:10px;padding:10px 14px;font-weight:700;cursor:pointer;background:var(--klein-blue);color:#fff;box-shadow:0 6px 16px #002fa740}.wx-btn--light{background:#002fa70f;color:var(--klein-blue);border:1px solid rgba(0,47,167,.2);box-shadow:none}.wx-close{margin-top:6px;background:transparent;border:none;color:var(--text-subtle);font-weight:600;cursor:pointer}.wx-toast{position:absolute;bottom:16px;left:50%;transform:translate(-50%);background:#000000d1;color:#fff;border-radius:999px;padding:8px 12px;font-size:12px;display:none}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;line-height:1.6;color:#0b5394;background:#e3f2fd;overflow-x:hidden}img{max-width:100%;height:auto;display:block}a{text-decoration:none;color:inherit}button{font-family:inherit;cursor:pointer;border:none;background:none}:root{--primary:#4A90E2;--primary-dark:#145DA0;--secondary:#5DADE2;--accent:#7EC8E3;--auxiliary-cyan:#4FC3F7;--auxiliary-cyan-light:#6DD5FA;--dark:#0B5394;--dark-alt:#1565C0;--light:#E3F2FD;--white:#FFFFFF;--header-offset:72px}.container{max-width:1200px;margin:0 auto;padding:0 1.5rem}@media (min-width:1280px){.container{max-width:1280px}}[id]{scroll-margin-top:calc(var(--header-offset,72px) + .5rem)}