:root{color-scheme:light;--navy:#203d71;--blue:#4b78c9;--bright:#5a85d8;--ink:#101828;--pale:#e8efff}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{margin:0;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink)}
a{color:inherit}
.site-header{position:absolute;top:0;left:0;right:0;z-index:5;color:#fff}
.header-inner,.section-inner,.hero-inner{width:min(1120px,calc(100% - 56px));margin:auto}
.header-inner{height:84px;display:flex;align-items:center;justify-content:space-between;gap:32px}
.brand{text-decoration:none;display:block;position:relative;width:92px;height:66px;min-width:92px;overflow:hidden}
.brand-image{position:absolute;max-width:none;width:156px;height:156px;left:-32px;top:-42px}
nav{display:flex;gap:clamp(20px,4vw,58px);align-items:center;margin-right:15%}
nav a{text-decoration:none;font-size:clamp(16px,1.8vw,24px);white-space:nowrap;border-bottom:2px solid transparent;padding:7px 0}
nav a:hover,nav a:focus-visible{border-color:#fff}
.hero,.courses{background:var(--navy);color:#fff}
.hero{min-height:680px;min-height:100svh;display:flex;align-items:center;padding:116px 0 65px}
.hero-inner{display:grid;grid-template-columns:1.25fr .75fr;gap:9%;align-items:start}
.hero-copy{padding-top:30px}
.hero-slogan{margin:0 0 55px;font-size:32px;line-height:1.3}.hero-slogan span,.hero-slogan strong{display:block}.hero-slogan strong{font-size:48px;color:var(--blue);margin-top:26px}
.hero-principles{font-size:26px;line-height:1.22;margin:0 0 42px;letter-spacing:.015em}
.hero-focus{font-size:19px;margin:0 0 6px}.hero-focus span{margin-left:26px}
.hero-note{color:#a9c0eb;font-size:14px;margin:0}
.hero-actions{display:flex;flex-direction:column;align-items:center;padding-top:0}
.entry-link{display:block;background:var(--blue);border-radius:5px;color:#fff;font-weight:700;text-align:center;text-decoration:none;font-size:22px;width:min(100%,284px);padding:7px 12px;line-height:1.1;box-shadow:0 3px 8px #14274c55}.entry-link span{font-size:18px}
.entry-link:hover,.entry-link:focus-visible{background:#6490e3}
.login-orbit{display:grid;place-items:center;width:232px;height:232px;background:#2e57a0;border-radius:50%;margin:10px 0 85px;text-decoration:none;transition:transform .2s}
.login-orbit:hover,.login-orbit:focus-visible{transform:scale(1.04)}
.login-orbit>span{width:176px;height:176px;border-radius:50%;background:var(--blue);display:flex;align-items:center;justify-content:center;flex-direction:column}.login-orbit strong{font-size:38px}.login-orbit small{font-size:26px;font-weight:700}
.qr-row{display:flex;justify-content:space-between;width:min(100%,274px);gap:30px}.qr-item{display:flex;flex-direction:column;align-items:center;gap:8px;font-size:14px}.qr-item img{width:88px;height:88px;background:#fff;object-fit:contain;image-rendering:pixelated}
.cases{background:#fff;padding:28px 0 72px;min-height:680px}
.section-heading{text-align:center}.cases-heading p{font-size:30px;letter-spacing:.09em;display:table;margin:0 auto 9px;position:relative}.cases-heading p:after{content:"";display:block;height:11px;border-radius:7px;background:var(--blue);position:absolute;left:0;right:0;bottom:-5px;z-index:0}.cases-heading h2{font-size:30px;margin:14px 0 57px}
.cases-grid{display:grid;grid-template-columns:1fr 1fr;gap:7%}.detail-card{border:1px solid #a9c3ff;border-radius:20px;padding:37px 30px 20px;position:relative;min-height:210px;font-size:17px;line-height:1.85}.detail-card p{margin:0}.detail-card .detail-more{color:#1556dc;font-size:15px;margin-top:2px}.detail-badge{position:absolute;top:-22px;left:-13px;background:linear-gradient(90deg,#83a4fc,#3872eb);color:#fff;padding:8px 23px;font-size:23px;font-weight:700;clip-path:polygon(0 0,80% 0,100% 50%,80% 100%,0 100%);filter:drop-shadow(0 3px 3px #adb7c8)}
.books{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:20px}.book-scene{height:190px;overflow:hidden;border-radius:24px;background:linear-gradient(150deg,#c9b2d0,#e9d8e8 58%,#9c84ab);display:grid;place-items:center}.book-cover{width:75%;height:73%;transform:rotate(-7deg);background:linear-gradient(155deg,#172c68 0 64%,#253c8d 64%);box-shadow:12px 14px 10px #17244266;border:5px solid #e5ebf6;display:flex;flex-direction:column;justify-content:center;padding:12px;color:#fff}.book-cover span{font-size:clamp(11px,1.25vw,16px);font-weight:800}.book-cover small{font-size:8px;opacity:.7;margin:7px 0}.book-cover b{font-size:10px;color:#f4db71}
.book-scene-open{background:linear-gradient(145deg,#d5c3cb,#f0e5e0)}.open-book{width:80%;height:62%;transform:rotate(-7deg);display:flex;box-shadow:8px 12px 8px #2d314166}.book-page{width:50%;background:#ecebe7;border:2px solid #8a8f98;display:flex;flex-direction:column;justify-content:space-evenly;padding:12px 8px}.book-page:first-child{transform:skewY(-8deg);background:#141b2c}.book-page i{display:block;height:6px;background:#768197}.book-page:first-child i{background:#d4d6da}.book-page i:nth-child(2){width:80%}.book-page i:nth-child(4){width:65%}
.bonus{color:#174cc7;font-size:18px;line-height:1.25;border-bottom:2px solid #4879d6;margin:0 0 30px;padding:6px 0 14px;min-height:69px}.book-promo{height:205px;width:min(100%,365px);background:linear-gradient(130deg,#c5a7cb,#ead7df);display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative;margin:0 0 16px}.promo-book{width:70%;height:65%;background:linear-gradient(155deg,#243a8d,#161d4c);color:#fff;transform:rotate(-8deg);box-shadow:8px 12px 7px #34213f77;padding:35px 12px 10px;text-align:center;border:5px solid #c9d4fa}.promo-book span{font-weight:800;font-size:17px}.promo-book small{display:block;font-size:8px;margin-top:8px}.book-promo strong{position:absolute;color:#ffe529;text-shadow:3px 3px #090a0d,-2px -2px #090a0d,2px -2px #090a0d,-2px 2px #090a0d;font-size:39px;transform:rotate(-4deg)}.results h3{font-size:20px;margin:0}.results p{font-size:17px;line-height:1.3;margin:0}
.courses{min-height:680px;padding:18px 0 60px}.course-heading{margin-bottom:35px}.course-heading h2{font-size:30px;font-weight:500;margin:0}.course-heading h2:before,.course-heading h2:after{content:"";display:inline-block;width:90px;height:2px;vertical-align:middle;background:var(--blue);margin:0 30px}.course-grid{display:grid;grid-template-columns:1.6fr .7fr;gap:10%}.course-copy{font-size:16px;line-height:1.45}.course-copy p{margin:0 0 12px}.course-kicker,.course-block h3{color:var(--blue);font-weight:700}.course-kicker{font-size:17px}.course-list{margin:0 0 24px;padding-left:20px}.course-list li{margin:0 0 13px;padding-left:2px}.course-block{margin:20px 0 0}.course-block:before{content:"";display:block;width:45%;height:1px;background:#d6e0fa;margin-bottom:23px}.course-block h3{font-size:17px;margin:0 0 16px}.course-block p{max-width:790px}.course-aside{display:flex;align-items:center;flex-direction:column;text-align:center;padding-top:15px}.speech-bubble{border:7px solid #84c9fb;border-radius:33px;background:#164380;padding:18px 19px;font-size:24px;line-height:1.17;font-weight:700;position:relative;box-shadow:-12px -8px 0 #d3ecfa;transform:rotate(-2deg)}.speech-bubble:after{content:"";position:absolute;bottom:-32px;left:30%;border:16px solid transparent;border-top-color:#84c9fb;transform:rotate(19deg)}.course-qr{width:115px;height:115px;object-fit:contain;image-rendering:pixelated;margin-top:44px;background:#fff}.course-aside p{font-size:19px;line-height:1.65;margin-top:53px}
.site-footer{background:#172f59;color:#cfdbef;border-top:1px solid #46669b;padding:24px 0}.footer-inner{width:min(1120px,calc(100% - 56px));margin:auto;display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:14px}.site-footer a{text-decoration:none;color:#cfdbef}.site-footer a:hover,.site-footer a:focus-visible{text-decoration:underline;color:#fff}
@media(max-width:760px){html{scroll-padding-top:16px}.site-header{position:absolute}.header-inner,.section-inner,.hero-inner{width:min(100% - 32px,540px)}.header-inner{height:auto;display:block;padding-top:18px}.brand{width:92px;margin:auto}.header-inner nav{margin:16px 0 0;justify-content:space-between;gap:7px;overflow-x:auto}nav a{font-size:12px}.hero{min-height:0;padding:127px 0 58px}.hero-inner,.cases-grid,.course-grid{display:block}.hero-copy{padding-top:14px}.hero-slogan{font-size:25px;margin-bottom:32px}.hero-slogan strong{font-size:38px;margin-top:11px}.hero-principles{font-size:21px;margin-bottom:31px}.hero-focus{font-size:16px}.hero-focus span{display:block;margin:4px 0 0}.hero-note{font-size:12px;line-height:1.5}.hero-actions{margin-top:35px}.entry-link{font-size:18px}.login-orbit{width:175px;height:175px;margin-bottom:34px}.login-orbit>span{width:130px;height:130px}.login-orbit strong{font-size:31px}.login-orbit small{font-size:21px}.qr-row{width:230px}.cases{padding:40px 0 55px}.cases-heading p{font-size:18px}.cases-heading p:after{height:7px}.cases-heading h2{font-size:24px;margin:16px 0 45px}.detail-card{font-size:15px;padding:29px 19px 15px}.detail-card .detail-more{font-size:13px}.detail-badge{font-size:17px;top:-17px}.books{margin-bottom:32px}.book-scene{height:140px}.bonus{font-size:15px;min-height:0}.book-promo{margin:0 auto 20px}.results h3{font-size:18px}.results p{font-size:15px;line-height:1.55}.courses{padding:40px 0 60px}.course-heading h2{font-size:22px}.course-heading h2:before,.course-heading h2:after{width:20px;margin:0 8px}.course-copy{font-size:15px}.course-kicker{font-size:15px}.course-aside{padding-top:30px}.speech-bubble{font-size:20px}.course-aside p{font-size:16px;margin-top:25px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.login-orbit{transition:none}}
@media(max-width:760px){.site-footer{padding:23px 0}.footer-inner{width:min(100% - 32px,540px);flex-direction:column;text-align:center;gap:10px;font-size:12px}}

.hero .hero-title{font-size:21px;line-height:1.5;font-weight:500;margin:0 0 22px;color:#d5e2fc}
.hero-learn{font-size:16px;margin:20px 0 0}.hero-learn a{text-underline-offset:5px}
.content-page .site-header{position:relative;background:var(--navy)}
.content-page .header-inner nav{margin-right:0}
.content-main{background:#f5f7fb;padding:38px 0 64px;min-height:75svh}
.content-inner{width:min(1040px,calc(100% - 56px));margin:auto}
.breadcrumbs{margin:0 0 30px;gap:12px;font-size:14px;color:#475467;flex-wrap:wrap}.breadcrumbs a{font-size:14px;padding:0;text-decoration:underline}
.content-main h1{font-size:clamp(26px,3.1vw,38px);line-height:1.4;color:var(--navy);margin:0 0 18px}
.content-lead{font-size:20px;line-height:1.65;margin:0 0 42px;color:#475467}
.content-main section{margin:0 0 38px}.content-main h2{font-size:25px;line-height:1.4;color:var(--navy);margin:0 0 18px}.content-main h3{font-size:19px;margin:0 0 12px}
.content-main p,.content-main li{font-size:17px;line-height:1.9}.content-main li{margin-bottom:10px}.content-main p{margin:0 0 15px}.content-main a{color:#2456a4;text-underline-offset:4px}
.content-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:24px}.content-card{background:#fff;padding:25px;border:1px solid #dbe4f2;border-radius:14px}.content-card p{margin:0}
.content-main .content-contact{display:flex;align-items:center;justify-content:space-between;gap:30px;background:var(--navy);color:#fff;border-radius:18px;padding:32px;margin-bottom:0}.content-contact h2{color:#fff}.content-contact .qr-row{flex-shrink:0}.content-contact .content-button{display:inline-block;color:#fff;border:1px solid #9db6e8;border-radius:7px;text-decoration:none;padding:10px 17px;margin-top:4px}
@media(max-width:760px){.hero .hero-title{font-size:18px;margin-bottom:18px}.hero-learn{font-size:14px}.content-page .header-inner{padding-bottom:20px}.content-main{padding:26px 0 42px}.content-inner{width:min(100% - 32px,540px)}.breadcrumbs{margin-bottom:22px;gap:10px}.content-main .content-lead{font-size:17px;margin-bottom:30px}.content-main h2{font-size:22px}.content-main p,.content-main li{font-size:16px}.content-cards{grid-template-columns:1fr;gap:12px}.content-card{padding:21px}.content-main .content-contact{flex-direction:column;align-items:flex-start;padding:24px}.content-contact .qr-row{align-self:center;width:230px}}
/* Vietnamese copy shares the domestic visual language with room for longer text. */
body{font-family:Arial,"Segoe UI",sans-serif;line-height:1.65;overflow-wrap:break-word}
a:focus-visible{outline:3px solid #84c9fb;outline-offset:5px}
.skip-link{position:absolute;left:16px;top:-100px;z-index:10;background:#fff;color:#203d71;padding:10px 16px;border-radius:5px}.skip-link:focus{top:12px}
.header-inner{gap:28px}nav{margin-right:0;gap:clamp(18px,3vw,38px)}nav a{font-size:18px}
.hero-inner{grid-template-columns:1.4fr .8fr;gap:7%;align-items:center}.hero-copy{padding-top:0}.hero-eyebrow{font-size:14px;color:#bdcff0;margin:0 0 16px}.hero .hero-title{font-size:clamp(27px,3vw,39px);line-height:1.35;font-weight:700;color:#fff;margin:0 0 24px}.hero-slogan{font-size:29px;margin-bottom:30px}.hero-slogan strong{font-size:44px;margin-top:5px;color:#9dbbfa}.hero-principles{font-size:23px;line-height:1.6;margin-bottom:28px}.hero-focus{font-size:20px;margin-bottom:9px}.hero-note{font-size:16px;line-height:1.7;max-width:620px}.hero-learn{margin-bottom:0}.hero-actions{padding-top:20px}.entry-link{font-size:20px;line-height:1.4;padding:12px}.login-orbit{margin:18px 0 22px}.access-note{font-size:14px;line-height:1.65;color:#cad7ee;text-align:center;max-width:310px;margin:0 0 16px}.secondary-link{font-size:16px;font-weight:700;text-underline-offset:5px;margin-bottom:15px}.login-orbit strong{font-size:37px}.login-orbit small{font-size:24px}
.platform{background:#f3f6fc;padding:65px 0}.section-kicker{text-transform:uppercase;letter-spacing:.06em;font-size:13px;font-weight:700;color:#4973b9;margin:0 0 12px}.section-heading h2{font-size:clamp(25px,3vw,32px);line-height:1.4;margin:0 0 18px}.section-intro{font-size:17px;color:#475467;max-width:650px;margin:0 auto 32px}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.feature-card{background:#fff;border:1px solid #dae3f2;border-radius:16px;padding:26px}.feature-number{color:#5983cf;font-size:26px;font-weight:700}.feature-card h3{font-size:20px;line-height:1.4;margin:14px 0 10px}.feature-card p{font-size:16px;color:#475467;margin:0}.market-strip{border-top:1px solid #d2ddef;margin-top:30px;padding-top:24px}.market-strip h3{font-size:19px;margin:0 0 10px}.market-strip p{font-size:16px;margin:0 0 10px}.market-strip .market-note{color:#667085;font-size:14px}.platform-action{margin:25px 0 0}.button-link{display:inline-block;background:#203d71;color:#fff;text-decoration:none;border-radius:6px;padding:12px 20px;font-weight:700}.button-link:hover{background:#31558f}
.cases{padding:65px 0}.cases-heading p{font-size:clamp(22px,2.5vw,30px);letter-spacing:0;line-height:1.5}.cases-heading h2{margin:18px 0 44px}.cases-grid{gap:5%}.detail-card{line-height:1.75;padding:38px 26px 23px}.detail-badge{font-size:19px}.detail-card .detail-more{margin-top:12px;line-height:1.7}.bonus{line-height:1.65;font-size:18px;padding-top:0}.results h3{font-size:21px;margin:14px 0 8px}.results p{font-size:16px;line-height:1.75;margin:0 0 12px}.book-cover span{font-size:15px;line-height:1.4}.book-cover b{font-size:10px}.book-promo{width:100%;height:215px}.book-promo strong{font-size:25px;line-height:1.3;text-align:center;padding:0 12px;bottom:18px}.illustration-note{font-size:12px;color:#667085;margin:12px 0 0}
.courses{padding:55px 0;min-height:0}.course-heading .section-kicker{color:#bdd1f4}.course-heading h2:before,.course-heading h2:after{display:none}.course-grid{gap:8%;grid-template-columns:1.6fr .8fr}.course-copy{font-size:17px;line-height:1.75}.course-kicker,.course-block h3{color:#b4ccf5}.course-list li{margin-bottom:9px}.course-block{margin-bottom:23px}.course-block h3{font-size:20px}.speech-bubble{font-size:24px;line-height:1.5;padding:20px}.course-aside p{font-size:18px;line-height:1.8;margin:40px 0 24px}
.contact{padding:65px 0;background:#fff}.contact-inner{display:grid;grid-template-columns:1.5fr 1fr;gap:8%;align-items:center}.contact h2{font-size:28px;line-height:1.4;margin:0 0 18px}.contact p{font-size:16px;margin:0 0 14px}.contact .contact-note{font-size:14px;color:#667085}.contact .qr-row{width:100%;gap:25px}.contact .qr-item{font-size:14px;text-align:center;text-decoration:none;max-width:160px}.contact .qr-item img{width:128px;height:128px}.footer-inner{font-size:13px;line-height:1.8}
@media(max-width:900px){.feature-grid{gap:14px}.feature-card{padding:20px}.hero-inner{gap:5%}.hero-principles{font-size:21px}}
@media(max-width:760px){.header-inner,.section-inner,.hero-inner,.footer-inner{width:calc(100% - 36px)}.header-inner{height:auto;padding:14px 0;align-items:center;gap:10px;flex-wrap:wrap}.brand{width:75px;min-width:75px;height:58px}.brand-image{left:-40px;top:-46px}nav{gap:16px;flex-wrap:wrap;justify-content:flex-start}nav a{font-size:14px;white-space:normal;line-height:1.4}.hero{padding:140px 0 45px;min-height:0}.hero-inner{grid-template-columns:1fr;gap:32px}.hero-copy{padding:0}.hero .hero-title{font-size:29px}.hero-slogan{margin-bottom:24px}.hero-slogan strong{font-size:40px}.hero-principles{font-size:21px;margin-bottom:24px}.hero-focus{font-size:19px}.hero-note{font-size:15px}.hero-actions{padding:0;align-items:center}.entry-link{width:100%;max-width:320px}.login-orbit{width:200px;height:200px;margin-bottom:18px}.login-orbit>span{width:155px;height:155px}.access-note{max-width:340px}.platform,.cases,.courses,.contact{padding:42px 0}.feature-grid{grid-template-columns:1fr;gap:16px}.feature-card{padding:22px}.feature-card h3{margin:8px 0}.cases-heading h2{margin-bottom:37px}.cases-grid{grid-template-columns:1fr;gap:32px}.detail-card{padding:34px 22px 22px}.books{gap:12px}.book-scene{height:175px}.book-cover span{font-size:13px}.book-promo{height:215px;max-width:440px}.course-grid{grid-template-columns:1fr;gap:24px}.course-copy{font-size:16px}.course-aside{padding-top:0}.speech-bubble{font-size:23px}.course-aside p{margin-top:40px}.contact-inner{grid-template-columns:1fr;gap:25px}.contact h2{font-size:26px}.contact .qr-row{max-width:360px;justify-content:flex-start;gap:24px}.footer-inner{align-items:flex-start;gap:10px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.login-orbit{transition:none}}