:root{--ink:#2c2538;--sub:#746b81;--muted:#99919e;--purple:#6b4eb0;--lilac:#e9e2f7;--cream:#fcfbf9;--border:#ece8e9;--white:#fff;--shadow:0 15px 48px #59477114}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--cream);color:var(--ink);font-family:'Be Vietnam Pro',system-ui,-apple-system,sans-serif;line-height:1.55;-webkit-font-smoothing:antialiased}button,input{font:inherit}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #a88bde;outline-offset:3px}a{color:inherit;text-decoration:none}.hidden{display:none!important}.wrap{width:min(1210px,calc(100% - 76px));margin-inline:auto}.topbar{position:sticky;top:0;z-index:40;background:#fffefbed;border-bottom:1px solid #e8e3e7a3;backdrop-filter:blur(20px)}.nav{height:83px;display:flex;gap:24px;align-items:center}.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}.brand-mark{height:43px;width:43px;display:grid;place-items:center;background:#7153b7;color:#fff;border-radius:14px;font-size:23px;box-shadow:0 7px 15px #7153b73c}.brand-type small{font-weight:800;color:#9a80c7;letter-spacing:2px;font-size:9px;display:block}.brand-type strong{font-size:16px;font-weight:900;letter-spacing:-.5px;display:block}.nav-links{display:flex;align-items:center;gap:33px;margin-left:auto;color:#716c78;font-size:12px;font-weight:800}.nav-links a:hover{color:var(--purple)}.nav-search{display:flex;gap:12px;align-items:center;background:#f7f3fb;border:1px solid #ede8f2;border-radius:99px;padding:10px 15px;color:#76648f;font-size:12px;font-weight:850}.nav-search kbd{border:1px solid #e9e0f2;background:white;border-radius:6px;font:700 10px 'Be Vietnam Pro',sans-serif;padding:3px 5px}.search-icon{font-size:23px;line-height:12px}.hero{margin:30px 0 88px;height:548px;background:linear-gradient(124deg,#eee9f8 2%,#f3ecf7 57%,#e1edf2);border-radius:34px;display:grid;grid-template-columns:49% 51%;position:relative;overflow:hidden;box-shadow:var(--shadow)}.hero:before{content:"";position:absolute;width:520px;height:520px;border-radius:50%;background:#ffffff6a;filter:blur(2px);left:-200px;top:-200px}.hero-content{position:relative;z-index:2;padding:65px 10px 65px 66px;display:flex;flex-direction:column;justify-content:center;align-items:flex-start}.eyebrow,.kicker{font-size:10px;color:#9177b3;letter-spacing:2px;font-weight:900}.sparkle{font-size:18px;margin-right:6px}.hero h1{font-size:clamp(48px,6vw,84px);line-height:1.07;letter-spacing:-5px;margin:22px 0 9px;font-weight:900}.hero h1 em{font-style:normal;color:#7957ba}.hero-title-vi{font-size:17px;font-weight:800;color:#49375e;margin:10px 0}.hero-desc{color:#7d748c;font-size:12px;line-height:2;margin:16px 0 30px}.primary-action{border:0;color:#fff;background:#7255bb;padding:14px 22px;border-radius:99px;font-size:12px;font-weight:850;display:inline-flex;gap:25px;align-items:center;box-shadow:0 10px 23px #7356bd45;transition:.2s}.primary-action:hover{background:#5b3e9f;transform:translateY(-2px)}.hero-art{position:relative;min-width:0;overflow:hidden}.hero-shot{position:absolute;overflow:hidden;border:8px solid #fffefa;background:#e5d7ec;border-radius:22px;box-shadow:0 21px 48px #51427140}.hero-shot img{width:100%;height:100%;object-fit:cover}.hero-shot-one{width:64%;height:61%;left:3%;top:12%;transform:rotate(-9deg)}.hero-shot-two{width:51%;height:73%;right:13%;top:4%;transform:rotate(10deg)}.hero-shot-three{width:61%;height:47%;right:4%;bottom:-7%;transform:rotate(-7deg)}.hero-star{position:absolute;z-index:3;font-size:76px;left:13%;bottom:5%;color:#fff6d7;text-shadow:0 10px 25px #9578a680}.showcase{scroll-margin-top:120px}.showcase-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin:0 0 26px}.showcase-head h2{font-size:clamp(26px,3.5vw,37px);letter-spacing:-1.4px;line-height:1.35;margin:7px 0 0;font-weight:900}.head-note{font-size:12px;color:#968e9c;margin-bottom:6px}.collection-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:20px}.collection-card{position:relative;display:block;border:0;border-radius:28px;text-align:left;overflow:hidden;isolation:isolate;cursor:pointer;background:#ded7df;box-shadow:0 13px 33px #58486e1b;transition:transform .25s,box-shadow .25s;min-height:420px;grid-column:span 6}.collection-card:first-child{grid-column:span 7}.collection-card:nth-child(2){grid-column:span 5}.collection-card:nth-child(3){grid-column:span 12;min-height:435px}.collection-card:hover,.visual-tile:hover{transform:translateY(-4px);box-shadow:0 25px 50px #423b5635}.collection-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s}.collection-card:hover img,.visual-tile:hover img{transform:scale(1.04)}.collection-card:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,#211b2be0 0%,#231e30a0 22%,transparent 66%);pointer-events:none}.collection-card[data-collection="hoc-lieu"] img{object-position:center center}.collection-card[data-collection="chan-dung"] img{object-position:70% 38%}.collection-card[data-collection="quang-cao"] img{object-position:65% center}.collection-card .tile-number{position:absolute;top:23px;left:24px;z-index:2;background:#fffefbef;border:1px solid #fff;padding:9px 13px;border-radius:100px;color:#695482;font-size:10px;font-weight:900}.collection-card .tile-info{position:absolute;z-index:2;bottom:29px;left:32px;right:90px;color:#fff;display:flex;flex-direction:column;align-items:flex-start;gap:5px}.tile-info small{font-size:10px;letter-spacing:2px;font-weight:850;opacity:.85}.tile-info strong{font-weight:900;letter-spacing:-1px;font-size:clamp(25px,3vw,38px);line-height:1.32}.tile-info em{font-size:12px;font-weight:600;font-style:normal;opacity:.83}.tile-arrow{position:absolute;z-index:2;right:27px;bottom:36px;height:48px;width:48px;border-radius:50%;display:grid;place-items:center;background:#fff;color:#6f50ad;font-size:23px}.how-strip{border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:37px 0;margin:85px 0 96px;display:flex;justify-content:space-between;align-items:center;gap:30px}.how-strip h2{font-size:clamp(22px,2.6vw,29px);letter-spacing:-1px;margin:8px 0 0}.how-steps{display:flex;flex-wrap:wrap;gap:10px}.how-steps span{font-size:10px;color:#7b688d;background:#f0eaf8;font-weight:750;border-radius:80px;padding:13px 16px}.how-steps b{color:#7051b2;margin-right:8px}.footer{border-top:1px solid var(--border);padding:29px 0}.footer-inner{display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;color:#958d9d;font-size:10px;font-weight:750;letter-spacing:.5px}
/* drilldown */.inner{padding:30px 0 95px}.breadcrumb{background:none;border:0;color:#765ca6;font-size:11px;font-weight:900;padding:10px 0 21px}.breadcrumb:hover{text-decoration:underline}.wide-cover{height:430px;border-radius:30px;position:relative;overflow:hidden;background:#ede7f3;margin-bottom:43px}.wide-cover img{width:100%;height:100%;object-fit:cover;object-position:60% center}.wide-cover:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#211a2dc4,transparent 88%)}.wide-cover .cover-overlay{position:absolute;bottom:34px;left:42px;right:20%;z-index:2;color:white}.cover-overline{font-size:11px;letter-spacing:1.8px;font-weight:800;opacity:.9}.cover-overlay h1{font-size:clamp(30px,4.5vw,52px);line-height:1.2;font-weight:900;letter-spacing:-1.8px;margin:13px 0 10px;max-width:750px}.cover-overlay p{font-size:12px;opacity:.85;line-height:1.85;margin:0;max-width:560px}.content-head{display:flex;justify-content:space-between;align-items:flex-end;gap:22px;margin-bottom:25px}.content-head h2{font-size:clamp(24px,3vw,32px);font-weight:900;letter-spacing:-1px;margin:7px 0 0}.content-head>p{font-size:12px;color:#8e8697;margin:0 0 4px}.visual-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.visual-tile{cursor:pointer;text-align:left;border:0;padding:0;border-radius:23px;overflow:hidden;background:white;box-shadow:0 7px 26px #5347610e;transition:transform .25s,box-shadow .25s}.visual-media{height:305px;background:#eee3ee;position:relative;overflow:hidden}.visual-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s}.visual-status{position:absolute;top:16px;left:16px;border-radius:99px;background:#fffcf4e8;color:#5f5173;padding:8px 13px;font-weight:850;font-size:10px}.visual-description{padding:22px 25px 25px;display:flex;align-items:center;justify-content:space-between;gap:20px}.visual-description strong{display:block;font-size:18px;letter-spacing:-.7px;line-height:1.4}.visual-description small{font-size:11px;color:#9b93a0;margin-top:5px;display:block}.small-arrow{height:40px;width:40px;flex-shrink:0;border-radius:50%;display:grid;place-items:center;background:#f0ebf9;color:#7456b4;font-size:20px}.section-break{height:1px;background:#ebe6ed;margin:48px 0 34px}.mode-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.mode-grid .visual-media{height:300px}.mode-grid .visual-description strong{font-size:16px}.mode-grid .visual-description{padding:18px 16px 21px}.mode-grid .small-arrow{height:32px;width:32px}.mode-section{margin-top:22px}.topic-cover{height:370px;border-radius:27px;overflow:hidden;position:relative;margin:0 0 24px;background:#e4d9ea}.topic-cover img{height:100%;width:100%;object-fit:cover}.topic-cover:after{content:"";position:absolute;inset:25% 0 0;background:linear-gradient(0deg,#231b31e5,transparent)}.topic-cover .cover-overlay{position:absolute;bottom:31px;left:36px;right:22px;color:white;z-index:1}.topic-cover h1{font-size:clamp(26px,4vw,43px);letter-spacing:-1.5px;line-height:1.2;margin:10px 0 7px}.topic-cover p{font-size:12px;opacity:.85;margin:0}.content-note{font-size:12px;color:#8c8193}.toolbar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;margin:21px 0 25px}.guide-button{background:#f2edf9;color:#7557b1;border:1px solid #e9dff4;border-radius:14px;padding:12px 17px;font-size:12px;font-weight:850}.guide-button:hover{background:#e8def6}.guide-area{padding:23px 25px;border:1px solid #eee7f1;background:#fff;border-radius:23px;margin-bottom:28px}.guide-area h3{margin:0 0 17px;font-size:19px}.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}.step{border-radius:16px;background:#f9f6fb;padding:16px}.step b{display:block;font-size:13px;margin:9px 0 5px}.step em{font-style:normal;font-weight:900;color:#9473c8;font-size:11px}.step p{margin:0;color:#8d8496;font-size:11px;line-height:1.75}.guide-hint{font-size:11px;color:#8a7c91;line-height:1.9;margin:14px 0 0}.code-heading{display:flex;gap:16px;align-items:flex-end;justify-content:space-between;margin:22px 0 17px}.code-heading h2{font-size:26px;letter-spacing:-.9px;margin:0}.filter-input{width:280px;max-width:100%;background:white;border:1px solid #e5dceb;border-radius:13px;padding:13px 15px;font-size:12px;outline:0}.filter-input:focus{border-color:#a18ad0}.code-list{display:grid;gap:10px}.code-row{display:grid;grid-template-columns:40px minmax(0,1fr) auto;gap:16px;align-items:center;border:1px solid #eee7f0;background:white;border-radius:17px;padding:15px 17px;min-height:88px}.code-number{display:grid;place-items:center;height:39px;width:39px;background:#f0eaf9;border-radius:12px;color:#8066b8;font-size:11px;font-weight:900}.code-label{min-width:0}.code-label h3{font-size:13px;font-weight:850;line-height:1.5;margin:0 0 6px}.code-label code{font-family:inherit;font-size:12px;color:#7557b1;font-weight:900;overflow-wrap:anywhere}.code-dup{color:#9f8738;font-size:10px;font-weight:700}.code-actions{display:flex;gap:7px;flex-wrap:wrap}.copy-button,.prompt-button{border-radius:12px;padding:11px 14px;font-weight:850;font-size:11px;white-space:nowrap}.copy-button{background:#7252b6;color:#fff;border:1px solid #7252b6}.copy-button:hover{background:#5d3e9f}.prompt-button{background:#f5f0fb;color:#7458ad;border:1px solid #e8e1f0}.prompt-button:hover{background:#eae0f6}.note{color:#91889b;font-size:11px;line-height:1.85;margin-top:22px}.empty-state{text-align:center;border-radius:25px;padding:65px 25px;background:linear-gradient(120deg,#f2edf8,#fcf8f8);border:1px solid #ede6f0;margin:25px 0}.empty-state .empty-symbol{height:65px;width:65px;border-radius:22px;display:grid;place-items:center;background:white;color:#9e81c9;font-size:35px;margin:0 auto 16px}.empty-state h2{font-size:22px;letter-spacing:-.8px;margin:0 0 9px}.empty-state p{font-size:12px;color:#85798f;line-height:1.85;margin:0 auto;max-width:530px}.search-wrap{padding:40px 0 100px}.search-wrap h1{font-size:40px;letter-spacing:-1.5px;margin:8px 0 18px}.search-box{width:100%;padding:19px 20px;border:2px solid #e9e0f2;border-radius:20px;outline:none;font-size:15px;background:#fff}.search-box:focus{border-color:#ad99d6}.search-meta{font-size:12px;margin:17px 0 22px;color:#968d9c}.search-results{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.search-result{display:flex;align-items:center;justify-content:space-between;gap:15px;border:1px solid #ece5ef;background:#fff;border-radius:17px;padding:18px;min-width:0}.search-result>div{min-width:0}.search-result strong{font-size:12px;display:block;margin-bottom:5px}.search-result small{display:block;color:#9a8da2;font-size:10px;margin-bottom:6px}.search-result code{font-family:inherit;color:#7054b1;font-weight:800;font-size:12px}.toast{position:fixed;bottom:22px;left:50%;z-index:100;transform:translate(-50%,20px);padding:14px 22px;background:#342640;color:#fff;border-radius:99px;font-size:12px;font-weight:850;opacity:0;pointer-events:none;transition:.2s;white-space:nowrap}.toast.show{opacity:1;transform:translate(-50%,0)}dialog{border:1px solid #e4d9ee;border-radius:20px;padding:24px;max-width:90vw;width:520px}dialog textarea{height:120px;width:100%;padding:15px;border-radius:12px;border:1px solid #ece0f3}
@media(max-width:960px){.wrap{width:calc(100% - 46px)}.hero{grid-template-columns:52% 48%;height:460px}.hero-content{padding:40px 10px 40px 36px}.hero h1{font-size:54px;letter-spacing:-3px}.head-note{display:none}.how-strip{flex-direction:column;align-items:flex-start}.wide-cover{height:320px}.collection-card{min-height:360px}.visual-media{height:255px}.mode-grid .visual-media{height:235px}.code-row{grid-template-columns:40px 1fr}.code-actions{grid-column:2}}
@media(max-width:680px){.wrap{width:calc(100% - 28px)}.nav{height:68px;gap:8px}.brand-mark{width:37px;height:37px;border-radius:11px;font-size:20px}.brand-type small{font-size:8px;letter-spacing:1px}.brand-type strong{font-size:12px}.nav-links{display:none}.nav-search{margin-left:auto;padding:9px 12px}.nav-search>span:not(.search-icon),.nav-search kbd{display:none}.hero{margin:17px 0 57px;display:flex;flex-direction:column-reverse;height:auto;border-radius:24px}.hero-art{height:260px;flex:0 0 260px}.hero-content{padding:23px 25px 30px}.hero h1{font-size:51px;letter-spacing:-3px;line-height:1.01;margin:15px 0 7px}.hero-title-vi{font-size:13px}.hero-desc{font-size:11px;line-height:1.9;margin:9px 0 19px}.eyebrow{font-size:8px}.hero-shot-one{left:2%;top:12%;width:53%;height:70%}.hero-shot-two{right:13%;top:5%;width:43%;height:72%}.hero-shot-three{right:0;bottom:-13%;width:51%;height:50%}.hero-star{font-size:53px}.primary-action{font-size:11px;padding:13px 18px}.showcase-head h2{font-size:25px}.collection-grid{grid-template-columns:1fr;gap:14px}.collection-card,.collection-card:first-child,.collection-card:nth-child(2),.collection-card:nth-child(3){grid-column:1;min-height:315px;border-radius:22px}.collection-card:nth-child(3){min-height:315px}.collection-card .tile-number{top:15px;left:16px}.collection-card .tile-info{left:22px;bottom:21px;right:65px}.tile-info strong{font-size:25px}.tile-info em{font-size:11px}.tile-arrow{height:39px;width:39px;right:17px;bottom:24px}.how-strip{margin:57px 0 63px;padding:26px 0}.how-strip h2{font-size:22px}.how-steps{gap:7px}.how-steps span{font-size:9px;padding:10px 12px}.inner{padding:21px 0 70px}.wide-cover{height:290px;border-radius:21px;margin-bottom:30px}.wide-cover .cover-overlay{bottom:22px;left:22px;right:20px}.cover-overlay h1{font-size:30px;letter-spacing:-1px}.cover-overlay p{font-size:11px}.content-head h2{font-size:23px}.content-head>p{display:none}.visual-grid,.mode-grid{grid-template-columns:1fr;gap:15px}.visual-media,.mode-grid .visual-media{height:250px}.visual-description{padding:18px}.visual-description strong{font-size:17px}.topic-cover{height:280px;border-radius:19px}.topic-cover .cover-overlay{left:20px;bottom:22px}.topic-cover h1{font-size:25px}.step-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.step{padding:13px}.guide-area{padding:17px}.code-heading{flex-direction:column;align-items:stretch}.code-heading h2{font-size:23px}.filter-input{width:100%}.code-row{grid-template-columns:35px 1fr;gap:11px;padding:12px;min-height:74px}.code-number{width:34px;height:34px}.code-label h3{font-size:12px}.code-label code{font-size:11px}.copy-button,.prompt-button{font-size:10px;padding:10px 12px}.search-wrap{padding:30px 0 70px}.search-wrap h1{font-size:28px}.search-results{grid-template-columns:1fr}.footer-inner{justify-content:center;text-align:center;font-size:9px}}

.note-featured{background:#f8f2ff;border:1px solid #e8ddfb;border-radius:16px;padding:18px 22px;color:#594579;margin:24px 0 12px;line-height:1.8}.note-featured strong{color:#4a2c80}.code-dup{font-size:11px;font-weight:600;color:#8c73b3}.copy-button,.prompt-button{white-space:normal}.code-row{min-width:0}

/* V6 — authentic paired image/video commands */
.pair-banner{display:flex;justify-content:space-between;align-items:center;gap:18px;border:1px solid #ebdef4;background:linear-gradient(110deg,#f7f2fe,#fff9f4);padding:22px 26px;border-radius:19px;margin:18px 0 34px}.pair-banner strong{font-size:19px;color:#4e3274}.pair-banner p{font-size:12px;line-height:1.8;margin:6px 0 0;color:#7c6d87}.pair-count{font-size:33px;font-weight:900;color:#7858a7;line-height:1}.pair-count small{font-size:12px;display:block;text-align:center;color:#80768e}.code-pair{display:grid;grid-template-columns:45px minmax(0,1fr);align-items:start;padding:22px;gap:17px}.code-pair .code-label h3{font-size:15px;margin:2px 0 15px}.paired-code{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.pair-unit{border:1px solid #eee5f4;border-radius:15px;background:#fdfbff;padding:15px;min-width:0;display:flex;flex-direction:column;align-items:flex-start;gap:9px}.pair-unit:nth-child(2){background:#fffaf7;border-color:#f3e7dc}.pair-unit>small{color:#8064a5;font-size:10px;font-weight:900;letter-spacing:.8px}.pair-unit:nth-child(2)>small{color:#b37855}.pair-unit code{font-size:11px;line-height:1.7;overflow-wrap:anywhere;white-space:normal;color:#54377f}.pair-unit:nth-child(2) code{color:#986647}.pair-unit .copy-button,.pair-unit .prompt-button{margin-top:auto;font-size:11px;min-height:37px}.row-details{margin-top:12px;font-size:12px;color:#81738f}.row-details summary{cursor:pointer;color:#7957a2;font-size:11px;font-weight:750}.row-details p{background:#faf7ff;border-radius:11px;padding:14px;line-height:1.85;color:#62536e}.source-line{display:block;font-size:10px;margin:9px 0 0;color:#a399ad;overflow-wrap:anywhere}.load-more-wrap{padding:20px 0;text-align:center}.more-button{background:white;border:1px solid #e5daef;padding:15px 24px;border-radius:14px;font-weight:800;color:#7959ac;cursor:pointer}.ugc-feature{margin:45px 0 10px;padding:28px;display:flex;justify-content:space-between;align-items:center;gap:20px;border-radius:22px;background:#f2eaf7}.ugc-feature h2{font-size:27px;letter-spacing:-1px;margin:5px 0}.ugc-feature p{font-size:12px;color:#756a80;line-height:1.7;max-width:580px}.search-actions{display:flex;flex-direction:column;gap:7px}.search-result code{overflow-wrap:anywhere}.search-result strong{line-height:1.6}.code-row .code-number{font-size:10px}.code-pair .code-number{margin-top:2px}
@media(max-width:680px){.paired-code{grid-template-columns:1fr}.code-pair{padding:14px;grid-template-columns:34px minmax(0,1fr);gap:10px}.code-pair .code-label h3{font-size:13px}.pair-banner{padding:15px 16px}.pair-banner strong{font-size:16px}.pair-count{font-size:25px}.pair-unit{padding:12px}.ugc-feature{flex-direction:column;align-items:flex-start;padding:21px}.search-actions{flex-direction:column}}


/* V7: pastel editorial design – differentiated by theme, photographs first */
:root{--ink:#312440;--sub:#716579;--purple:#7450b9;--cream:#fffdfa;--border:#f0e5ed;--shadow:0 18px 54px #aa719d16}
body{background:radial-gradient(ellipse 64% 800px at 2% 15%,#fdf0f6 0%,transparent 65%),radial-gradient(ellipse 80% 900px at 98% 10%,#efeeff 0%,transparent 70%),#fffdfa}
.brand-mark{background:linear-gradient(135deg,#fa8aaa,#ac89f1);border-radius:17px;box-shadow:0 8px 21px #f88aaa55}
.topbar{background:#fffdfaf5;border-bottom:1px solid #f8e3eb}
.nav-search{background:#fff3f9;border-color:#f7dbe8;color:#aa527f}
.hero{background:linear-gradient(128deg,#fff0f3 0%,#f6ebfc 54%,#e6f0ff 100%);box-shadow:0 23px 66px #d98fa02b; margin-bottom:35px}
.hero h1 em{color:#d55b86}.hero-title-vi{color:#b94977}.eyebrow,.kicker{color:#b96c92}.primary-action{background:linear-gradient(105deg,#e76f97,#a272cb);box-shadow:0 11px 24px #e17ca955}.primary-action:hover{background:linear-gradient(105deg,#ce527f,#8251ae)}
.hero-shot-one{height:59%;top:19%;left:0;transform:rotate(-9deg)}.hero-shot-two{height:77%;width:60%;right:6%;top:0;transform:rotate(5deg)}.hero-shot-three{right:2%;width:53%;height:45%;bottom:-8%;transform:rotate(-4deg)}
.how-strip.how-emphasis{margin:24px 0 70px;display:block; padding:29px 30px 33px;border:1px solid #f4d6e7;box-shadow:0 12px 38px #e9b3d023;border-radius:25px;background:linear-gradient(107deg,#fff1f7,#f4edff 64%,#eef5ff)}
.how-intro h2{font-size:clamp(22px,2.6vw,30px);margin:4px 0 3px;color:#532b64}.how-intro p{margin:3px 0 19px;color:#987895;font-size:12px}
.how-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.how-steps span{display:flex;flex-direction:column;gap:8px;min-height:90px;border-radius:17px;border:1px solid #f1e1f0;background:#ffffffc9;color:#644d77;font-size:12px;justify-content:center;align-items:flex-start;padding:14px 17px}
.how-steps span:nth-child(2){background:#f6edff}.how-steps span:nth-child(3){background:#fff0e9}.how-steps span:nth-child(4){background:#eef4ff}
.how-steps b{border-radius:99px;background:#fbd0df;color:#af4577;padding:3px 7px;margin:0;display:inline-block;width:max-content}
.collection-card{border-radius:26px;box-shadow:0 13px 34px #af7d9e29}.collection-card:first-child{grid-column:span 6}.collection-card:nth-child(2){grid-column:span 6}.collection-card:nth-child(3){grid-column:span 12;min-height:400px}
.collection-card[data-collection="hoc-lieu"]{background:#e9e4fc}.collection-card[data-collection="chan-dung"]{background:#ffe5ef}.collection-card[data-collection="quang-cao"]{background:#ffe9d8}
.collection-card:after{background:linear-gradient(0deg,#2c1a3ba8 0%,#37203b57 31%,transparent 72%)}
.collection-card[data-collection="hoc-lieu"] .tile-number{color:#7150af;background:#f2edff}
.collection-card[data-collection="chan-dung"] .tile-number{color:#b44870;background:#ffe6ef}
.collection-card[data-collection="quang-cao"] .tile-number{color:#be7c38;background:#fff0df}
.collection-card .tile-info strong{font-family:Georgia,'Times New Roman',serif;font-size:clamp(31px,3.3vw,44px);font-weight:700;letter-spacing:-1px}
.collection-card .tile-arrow{color:#cb6390}
.wide-cover{box-shadow:0 16px 46px #dd9bb021}
.wide-cover .cover-overlay h1,.topic-cover h1{font-family:Georgia,'Times New Roman',serif;font-weight:700;font-size:clamp(34px,5vw,57px)}
.visual-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.visual-tile{border:1px solid #f9e9f3;box-shadow:0 13px 35px #b99ab819}
.visual-media{height:333px}.visual-tile:nth-child(3n+2){background:#fff6fb}.visual-tile:nth-child(3n+3){background:#f6f2ff}.visual-description strong{color:#42274f}
.topic-cover{height:355px;box-shadow:0 14px 34px #be98b223}
.topic-cover:after{background:linear-gradient(90deg,#291a3cbe,transparent 75%)}
.guide-visible{display:block!important;margin:27px 0;padding:28px;border:1px solid #e7cce9;border-radius:26px;background:linear-gradient(130deg,#fff3f8 0%,#f7f0ff 58%,#f1f6ff 100%);box-shadow:0 11px 30px #e5bdd522}
.guide-heading h3{margin:6px 0 3px;font-size:25px;letter-spacing:-1px;color:#643979}.guide-heading p{font-size:12px;color:#89728f;margin:0 0 19px}
.guide-visible .step-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.guide-visible .step{background:#fffefd;border:1px solid #f1e5ef;border-radius:17px;padding:19px;min-height:183px}
.guide-visible .step:nth-child(2){background:#fbf6ff}.guide-visible .step:nth-child(3){background:#fff8f4}.guide-visible .step:nth-child(4){background:#f4f8ff}
.guide-visible .step em{width:34px;height:34px;display:grid;place-items:center;background:#fbd1e1;color:#ad4674;border-radius:99px;font-size:12px;font-style:normal;font-weight:900;margin-bottom:12px}
.guide-visible .step:nth-child(2) em{background:#e4d5ff;color:#6949ad}.guide-visible .step:nth-child(3) em{background:#ffdfcb;color:#ad633d}.guide-visible .step:nth-child(4) em{background:#dbe8ff;color:#4f71b3}
.guide-visible .step b{display:block;font-size:12px;margin-bottom:8px;color:#513361}.guide-visible .step p{font-size:11px;line-height:1.75;margin:0;color:#7d7180}
.guide-hint{padding:12px 17px;border-radius:13px;background:#fffdfdcc;color:#766779;font-size:11px;line-height:1.85;margin-top:16px}
.pair-banner{background:linear-gradient(110deg,#fbe8f0,#faf0fe);border-color:#f4d8e8}
.pair-unit{background:#fff5fa;border-color:#f3dce9}.pair-unit:nth-child(2){background:#f6f1ff;border-color:#e7dcfa}
.pair-unit>small{color:#c05a8b}.pair-unit:nth-child(2)>small{color:#7854ae}
.pair-unit code{color:#ab4278}.pair-unit:nth-child(2) code{color:#6949ac}
.copy-button{background:#ef7b9c!important;color:white!important;border-color:#ef7b9c!important}.prompt-button{background:#8e74c8!important;color:white!important;border-color:#8e74c8!important}
.pair-tip{font-size:10px;line-height:1.6;color:#9b8299;margin:0 0 5px}
.portrait-pair .row-details h4{margin-bottom:0;color:#8d5488}
.portrait-pair .row-details p{overflow-wrap:anywhere}
@media(max-width:980px){.how-steps{grid-template-columns:repeat(2,1fr)}.guide-visible .step-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:680px){.hero{margin-bottom:20px}.hero h1{font-size:49px}.how-strip.how-emphasis{margin:16px 0 45px;padding:19px}.how-steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:7px}.how-steps span{min-height:87px;padding:12px;font-size:10px}.collection-card,.collection-card:first-child,.collection-card:nth-child(2),.collection-card:nth-child(3){grid-column:1;min-height:330px}.collection-card .tile-info strong{font-size:32px}.visual-grid{grid-template-columns:1fr}.visual-media{height:275px}.wide-cover .cover-overlay h1,.topic-cover h1{font-size:30px}.guide-visible{padding:16px;margin:17px 0}.guide-visible .step-grid{grid-template-columns:1fr 1fr;gap:8px}.guide-visible .step{min-height:168px;padding:12px}.guide-visible .step em{width:29px;height:29px;margin-bottom:8px}.guide-visible .step b{font-size:11px}.guide-visible .step p{font-size:10px}.guide-heading h3{font-size:22px}}

/* V8 FINAL — clear thematic differentiation and compact copying */
.inner .visual-grid{column-gap:22px;row-gap:22px}.collection-card:first-child{border:4px solid #fff2dc}.collection-card:nth-child(2){border:4px solid #fce2f0}.collection-card:nth-child(3){border:4px solid #f6dff2}
.collection-card[data-collection="hoc-lieu"]{box-shadow:0 18px 42px #d7b47d27}.collection-card[data-collection="chan-dung"]{box-shadow:0 18px 42px #d590b82a}.collection-card[data-collection="quang-cao"]{box-shadow:0 18px 42px #c8a1cc31}
.guide-visible{display:block!important;visibility:visible!important;opacity:1!important}.guide-visible .step-grid{gap:12px}.guide-visible .step:nth-child(1){background:#fff6fb}.guide-visible .step:nth-child(2){background:#f7efff}.guide-visible .step:nth-child(3){background:#fff1e9}.guide-visible .step:nth-child(4){background:#eff8fa}
.pair-unit code{font-size:13px;font-weight:900;color:#b55391;line-height:1.65;overflow-wrap:anywhere}.pair-unit:nth-child(2) code{color:#775aa4}
.pair-unit .copy-button,.pair-unit .prompt-button{margin-top:auto}.edu-code-row .code-label h3{font-size:13px}.edu-code-row .code-label code{font-size:12px}.edu-code-row .code-actions{min-width:170px}
.code-dup{display:block;color:#b06685;font-size:10px;margin-top:5px}
@media(max-width:680px){.edu-code-row .code-actions{grid-column:2;min-width:0}.pair-unit code{font-size:12px}}


/* V9 · Quiet conversion links and explicit learning age bands */
.nav{gap:15px}
.nav-links{gap:19px;margin-left:auto;white-space:nowrap}
.nav-conversion{display:flex;align-items:center;gap:9px;flex-shrink:0}
.nav-conversion a{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:40px;border-radius:999px;padding:10px 13px;font-size:10.5px;font-weight:850;line-height:1.2;white-space:nowrap;transition:transform .18s,box-shadow .18s}
.nav-conversion a:hover{transform:translateY(-1px)}
.nav-link-course{border:1px solid #eddbed;background:#fdf1f8;color:#914c80;box-shadow:0 3px 12px #dc9bba13}
.nav-link-course:hover{box-shadow:0 6px 16px #dd9aba33}
.nav-link-zalo{background:#e7f1ff;border:1px solid #cfe3fb;color:#215ea5;box-shadow:0 3px 12px #8cb0de12}
.nav-link-zalo:hover{box-shadow:0 6px 17px #82aade31}
.nav-link-icon{color:#d966a0;font-size:15px}
.zalo-dot{width:22px;height:22px;border-radius:7px;background:#177ce0;color:white;display:grid;place-items:center;font-size:12px;font-weight:900}
.nav-conversion .label-compact{display:none}
.nav-search{gap:8px;padding:10px 12px;flex-shrink:0}
.nav-search kbd{display:none}
.hero-actions{display:flex;align-items:center;gap:17px;flex-wrap:wrap}
.hero-crosslink{font-size:11px;font-weight:850;color:#98608c;text-decoration:underline;text-decoration-color:#eabbd7;text-underline-offset:5px;transition:color .15s}
.hero-crosslink:hover{color:#6d3976}
.age-label{display:inline-flex;align-items:center;margin:9px 0 2px;padding:5px 12px;background:#fff0f7;border:1px solid #f2dbe8;color:#ae5589;font-size:12px;font-weight:900;border-radius:999px;letter-spacing:.1px}
.visual-tile:nth-child(2n) .age-label{background:#f2ebff;border-color:#e7daf9;color:#7557b2}
.footer-links{display:flex;gap:21px;align-items:center;flex-wrap:wrap}
.footer-links a{color:#795b9a;font-weight:850}
.footer-links a:hover{color:#c35085;text-decoration:underline}
@media(max-width:1150px){.nav-links{display:none}.nav-conversion{margin-left:auto}.nav-search{margin-left:0}}
@media(min-width:681px) and (max-width:790px){.nav-conversion .label-full{display:none}.nav-conversion .label-compact{display:inline}.nav-conversion a{padding:10px 12px}}
@media(max-width:680px){
  .topbar{position:sticky;top:0}
  .nav{height:auto;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px;padding:10px 0 9px}
  .nav-search{grid-column:2;grid-row:1;padding:9px 11px;margin:0}
  .nav-conversion{grid-column:1 / -1;grid-row:2;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:9px}
  .nav-conversion a{width:100%;min-height:39px;padding:8px 9px;font-size:11px;gap:6px}
  .nav-conversion .label-full{display:none}.nav-conversion .label-compact{display:inline}
  .zalo-dot{width:20px;height:20px;font-size:11px}
  .hero-actions{align-items:flex-start;flex-direction:column;gap:14px}
  .hero-crosslink{font-size:11px}
  .age-label{font-size:11px;padding:5px 10px;margin-top:7px}
  .footer-links{justify-content:center;gap:10px 18px}
}