:root{--g:#0b7a3e;--g2:#0a6534;--g3:#064a26;--gl:#e7f5ec;--gold:#f2b705;--ink:#1c2a22;--mut:#5f6f66;--line:#dfe9e2;--bg:#f4f8f5;--red:#d33a2c;--zalo:#0068ff}
*{box-sizing:border-box}
body{margin:0;font-family:'Be Vietnam Pro',system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;font-size:16px}
a{color:var(--g)}img{max-width:100%;height:auto}
.container{max-width:1180px;margin:0 auto;padding:0 16px}
.topbar{background:var(--g3);color:#cfe8d8;font-size:13.5px}
.topbar .container{display:flex;justify-content:space-between;padding:6px 16px}
.topbar a{color:#fff;text-decoration:none}
.header{background:#fff;border-bottom:3px solid var(--g);position:sticky;top:0;z-index:50;box-shadow:0 2px 10px rgba(0,0,0,.05)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none}
.logo img{height:46px}
.logo img+.logo-text{display:none}
.logo-text{font-weight:800;font-size:24px;color:var(--g)}
.menu{display:flex;gap:4px}
.menu a{text-decoration:none;color:var(--ink);font-weight:600;padding:10px 14px;border-radius:10px}
.menu a:hover{background:var(--gl);color:var(--g)}
.menu a.on{background:var(--g);color:#fff}
.burger{display:none;border:0;background:var(--g);color:#fff;font-size:22px;border-radius:10px;width:44px;height:44px}
.hero{background:linear-gradient(135deg,var(--g3),var(--g) 60%,#16a34a);color:#fff;padding:52px 0}
.hero-in{display:grid;grid-template-columns:1.1fr 1fr;gap:36px;align-items:center}
.hero h1{font-size:42px;line-height:1.15;margin:0 0 14px;font-weight:800}
.hero h1 span{color:var(--gold)}
.hero p{font-size:17px;color:#d8f0e1;margin:0 0 22px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.hero-note svg{filter:drop-shadow(0 18px 30px rgba(0,0,0,.35));transform:rotate(-3deg)}
.btn{display:inline-block;background:var(--g);color:#fff;text-decoration:none;font-weight:700;border:0;border-radius:12px;padding:12px 22px;cursor:pointer;font:inherit;font-weight:700;text-align:center}
.btn:hover{background:var(--g2)}
.btn-gold{background:var(--gold);color:#3a2a00}.btn-gold:hover{background:#ffc82e}
.btn-line{background:transparent;border:2px solid #fff;color:#fff}.btn-line:hover{background:rgba(255,255,255,.12)}
.btn-line2{background:#fff;border:2px solid var(--g);color:var(--g)}
.btn-zalo{background:var(--zalo)}.btn-zalo:hover{background:#0052cc}
.btn-red{background:var(--red)}
.btn-big{width:100%;padding:15px;font-size:17px;letter-spacing:.5px}
.btn:disabled{opacity:.6}
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:-26px;position:relative}
.feat{background:#fff;border-radius:14px;padding:16px;text-decoration:none;color:var(--ink);box-shadow:0 6px 20px rgba(6,74,38,.10);border-top:4px solid var(--g)}
.feat b{display:block;font-size:16px}.feat span{font-size:13.5px;color:var(--mut)}
.layout2{display:grid;grid-template-columns:1fr 320px;gap:28px;margin-top:32px;margin-bottom:40px}
.page-pad{margin-top:28px}
.sec-title{font-size:24px;margin:0 0 16px;padding-left:12px;border-left:5px solid var(--g)}
.post-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:18px}
.card-post{background:#fff;border-radius:14px;overflow:hidden;text-decoration:none;color:var(--ink);border:1px solid var(--line);transition:.2s}
.card-post:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(6,74,38,.12)}
.thumb{aspect-ratio:16/10;background:var(--gl);overflow:hidden}.thumb img{width:100%;height:100%;object-fit:cover}
.cp-body{padding:12px 14px}.cp-body h3{font-size:16px;line-height:1.35;margin:0 0 6px}.cp-body p{font-size:13.5px;color:var(--mut);margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.sidebar>div{margin-bottom:18px}
.box-zalo{background:linear-gradient(160deg,var(--g),var(--g3));color:#fff;border-radius:16px;padding:18px;text-align:center}
.box-zalo p{color:#d8f0e1;font-size:14px}.bz-title{font-weight:800;font-size:18px}
.box-zalo .btn{width:100%}.qr{width:160px;border-radius:10px;background:#fff;padding:6px;margin-bottom:10px}
.side-box{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px}
.sb-title{font-weight:800;color:var(--g);margin-bottom:8px}
.side-box ul{margin:0;padding:0;list-style:none}.side-box li{border-bottom:1px dashed var(--line)}
.side-box li a{display:block;padding:8px 0;color:var(--ink);text-decoration:none;font-size:14.5px}.side-box li a:hover{color:var(--g)}
.page-head{background:linear-gradient(135deg,var(--g3),var(--g));color:#fff;padding:30px 0}
.page-head h1{margin:0 0 6px;font-size:30px}.page-head p{margin:0;color:#d8f0e1}
.card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;margin-bottom:20px}
.val-form label{display:block;font-weight:600;font-size:14px;margin-bottom:14px}
.val-form label small{color:var(--mut);font-weight:400}
.f-row.two{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.f-row.three{display:grid;grid-template-columns:1fr 1fr 1.3fr;gap:14px}
input,select,textarea{width:100%;font:inherit;font-weight:500;padding:12px;border:1.5px solid var(--line);border-radius:12px;margin-top:6px;background:#fbfdfc;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--g);box-shadow:0 0 0 3px rgba(11,122,62,.15)}
.inp-serial{font-family:'JetBrains Mono',monospace;font-size:24px;text-align:center;letter-spacing:3px;text-transform:uppercase}
.f-err{color:var(--red);font-weight:600;font-size:14px;min-height:20px;margin-bottom:8px}
.f-hint{font-size:13px;color:var(--mut);margin:10px 0 0}
.note-svg{width:100%;height:auto;display:block;border-radius:14px}
.res{text-align:center}.res .note-svg{max-width:560px;margin:0 auto}
.res-err{border-color:#f3c3bd;background:#fff7f6}.res-icon{font-size:40px}
.res-stars{color:var(--gold);font-size:26px;letter-spacing:3px;margin-top:10px}.res-stars.sm{font-size:16px;margin:2px 0}
.tags{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin:8px 0}
.tag{background:var(--gl);color:var(--g3);border:1px solid #b9e0c8;border-radius:999px;padding:4px 12px;font-size:13.5px;font-weight:600}
.tag.main{background:var(--g);color:#fff;border-color:var(--g)}
.res-label{color:var(--mut);font-weight:600;margin-top:12px}
.res-price{font-size:44px;font-weight:800;color:var(--g);line-height:1.15;letter-spacing:-1px}
.res-sub{color:var(--mut);font-size:14px}
.res-tbl{margin:16px auto 0;max-width:520px;text-align:left}
.tbl{width:100%;border-collapse:collapse;font-size:14px}
.tbl th,.tbl td{border-bottom:1px solid var(--line);padding:8px;text-align:left}
.tbl th{background:var(--gl);color:var(--g3);font-size:13px}.tbl td.r{text-align:right;font-weight:700;white-space:nowrap}
.tbl-wrap{overflow-x:auto}.price-ref summary{font-weight:700;cursor:pointer;color:var(--g)}
.price-ref .tbl td,.price-ref .tbl th{white-space:nowrap;font-size:13px}
.zalo-cta{display:flex;gap:16px;align-items:center;justify-content:space-between;background:#eef5ff;border-color:#cfe0ff}
.zalo-cta p{margin:4px 0 0;font-size:14.5px}
.mono{font-family:'JetBrains Mono',monospace}.g{color:var(--g)}
.bd-item{border:1px solid var(--line);border-radius:14px;padding:10px;font-size:14px;text-align:center}
.bd-item .mono{font-size:17px;margin:2px 0}
.article{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px}
.article h1{font-size:30px;line-height:1.25;margin:6px 0}
.crumb{font-size:13.5px;color:var(--mut)}.crumb a{text-decoration:none}
.meta{color:var(--mut);font-size:13.5px;margin-bottom:14px}
.content h2{color:var(--g3);font-size:23px;margin-top:28px}.content h3{color:var(--g);font-size:19px}
.content img{border-radius:12px;display:block;margin:12px auto}
.content table{border-collapse:collapse;width:100%}.content td,.content th{border:1px solid var(--line);padding:8px}
.cta-box{background:var(--gl);border-radius:14px;padding:16px;margin:24px 0;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.pager{display:flex;gap:6px;margin-top:20px}.pager a{padding:8px 13px;border-radius:10px;background:#fff;border:1px solid var(--line);text-decoration:none}.pager a.on{background:var(--g);color:#fff}
.contact-info p{margin:6px 0;font-size:16px}.social{display:flex;gap:10px;flex-wrap:wrap}
.map iframe{width:100%;height:340px;border:0;border-radius:12px}
.ok-msg{font-size:17px;font-weight:600;color:var(--g);padding:20px;text-align:center}
.footer{background:var(--g3);color:#cfe8d8;padding:36px 0 0;margin-top:30px}
.footer a{color:#fff}.grid3{display:grid;grid-template-columns:2fr 1fr 1fr;gap:28px}
.f-title{color:#fff;font-weight:800;font-size:17px;margin-bottom:8px}
.copy{text-align:center;padding:14px;margin-top:20px;border-top:1px solid rgba(255,255,255,.1);font-size:13px}
.float-btns{position:fixed;right:16px;bottom:18px;display:flex;flex-direction:column;gap:10px;z-index:60}
.float-btns a{width:54px;height:54px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;text-decoration:none;box-shadow:0 6px 16px rgba(0,0,0,.25);font-size:14px}
.fb-zalo{background:var(--zalo);animation:pulse 2s infinite}.fb-call{background:var(--g);font-size:22px!important}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(0,104,255,.5)}70%{box-shadow:0 0 0 14px rgba(0,104,255,0)}100%{box-shadow:0 0 0 0 rgba(0,104,255,0)}}
@media(max-width:960px){.layout2{grid-template-columns:1fr}.hero-in{grid-template-columns:1fr}.features{grid-template-columns:1fr 1fr}.grid3{grid-template-columns:1fr}}
@media(max-width:760px){
  .burger{display:block}.menu{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;padding:10px;border-bottom:3px solid var(--g)}
  .menu-open .menu{display:flex}.hide-sm{display:none}.hero{padding:34px 0 46px}.hero h1{font-size:31px}
  .f-row.two,.f-row.three{grid-template-columns:1fr}.f-row.three{grid-template-columns:1fr 1fr 1.3fr;gap:8px}
  .zalo-cta{flex-direction:column;text-align:center}.res-price{font-size:36px}.article{padding:16px}.article h1{font-size:24px}
}

#valResult,#bdResult{scroll-margin-top:90px}

.note-real{position:relative;container-type:inline-size;border-radius:12px;overflow:hidden;line-height:1;box-shadow:0 6px 18px rgba(0,0,0,.15)}
.note-real img{display:block;width:100%;height:auto}
.note-real .ser{position:absolute;font-family:'JetBrains Mono',monospace;font-weight:700;letter-spacing:.06em;white-space:nowrap;line-height:1;
  text-shadow:0 0 2px #fff,0 0 3px #fff,0 0 5px rgba(255,255,255,.9)}
.note-real .ser .nl{margin-inline-end:.45em}
.note-real .ser .hl{color:#d0001a;background:rgba(255,221,87,.85);box-shadow:0 0 0 .04em rgba(255,221,87,.85);text-shadow:none}
.note-real .wm{position:absolute;right:1.5%;top:1.5%;font-size:1.8cqw;color:rgba(0,0,0,.45);background:rgba(255,255,255,.55);padding:.2em .5em;border-radius:.4em;font-family:sans-serif}
.res .note-real{max-width:560px;margin:0 auto}
.hero-note .note-real{transform:rotate(-3deg);box-shadow:0 18px 30px rgba(0,0,0,.35)}

.bd-list{display:flex;flex-direction:column;gap:12px;margin:14px 0}
.bd-row{display:grid;grid-template-columns:minmax(0,46%) 1fr;gap:16px;align-items:center;border:1px solid var(--line);border-radius:14px;padding:12px;background:#fbfdfc}
.bd-row .note-real{box-shadow:0 3px 10px rgba(0,0,0,.12)}
.bd-title{display:block;font-size:16px;line-height:1.35}
.bd-serial{font-size:22px;color:#c4161c;letter-spacing:2px;margin:4px 0}
.bd-meta{font-size:13.5px;color:var(--mut)}.bd-price{margin-top:4px}.bd-price b{color:var(--g);font-size:19px}
.side-box .cnt{float:right;background:var(--gl);color:var(--g3);border-radius:999px;font-size:12px;padding:0 8px}
.cat-desc{color:var(--mut);margin:-8px 0 16px}
@media(max-width:560px){.bd-row{grid-template-columns:48% 1fr;gap:10px;padding:8px}.bd-title{font-size:13.5px}.bd-serial{font-size:15px;letter-spacing:1px}.bd-meta{font-size:12px}.bd-price{font-size:13px}.bd-price b{font-size:15px}}
.bd-meta .res-stars{display:inline;font-size:13px;letter-spacing:1px;margin:0;white-space:nowrap}

/* ===== Shop ===== */
.nav-r{display:flex;align-items:center;gap:6px}.nav-r .menu{order:1}.cart-btn{order:2}.burger{order:3}
.cart-btn{position:relative;font-size:22px;text-decoration:none;width:46px;height:46px;display:flex;align-items:center;justify-content:center;border-radius:12px;background:var(--gl)}
.cart-n{position:absolute;top:-4px;right:-4px;background:var(--red);color:#fff;font-size:12px;font-weight:700;border-radius:999px;min-width:20px;height:20px;display:flex;align-items:center;justify-content:center;padding:0 5px}
.cart-n[hidden]{display:none}
.menu a{padding:10px 11px}
.btn-sm{padding:8px 12px;font-size:14px;border-radius:10px}
.add-cart.added{background:var(--g3)}
.cat-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.cat-tabs a{padding:8px 14px;border-radius:999px;background:#fff;border:1.5px solid var(--line);text-decoration:none;color:var(--ink);font-weight:600;font-size:14.5px}
.cat-tabs a.on{background:var(--g);border-color:var(--g);color:#fff}.cat-tabs small{opacity:.7}
.shop-filter{display:grid;grid-template-columns:1fr 1fr 1.6fr 1fr auto;gap:12px;align-items:end;padding:16px}
.shop-filter label{margin:0;font-weight:600;font-size:13.5px}.shop-filter .btn{height:48px}
.bd-pick span{font-weight:600;font-size:13.5px}.bd-pick div{display:grid;grid-template-columns:1fr 1fr 1.3fr;gap:6px}
.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px;margin-bottom:24px}
.pcard{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column;transition:.2s}
.pcard:hover{box-shadow:0 10px 24px rgba(6,74,38,.12);transform:translateY(-2px)}
.pc-img{display:block;padding:10px 10px 0}.pc-img .note-real{border-radius:10px;box-shadow:none}
.pc-body{padding:10px 14px 14px;display:flex;flex-direction:column;gap:4px;flex:1}
.pc-den{font-size:13px;color:var(--mut)}
.pc-serial{font-family:'JetBrains Mono',monospace;font-weight:700;font-size:19px;color:#c4161c;text-decoration:none;letter-spacing:1px}
.pc-tags{display:flex;gap:4px;flex-wrap:wrap}.pc-tags .tag{font-size:12px;padding:2px 8px}
.pc-foot{display:flex;justify-content:space-between;align-items:center;margin-top:auto;padding-top:8px}
.pc-price{font-weight:800;font-size:19px;color:var(--g)}
.notice{background:#fffbea;border-color:#f5e2a0}
.pdetail{display:grid;grid-template-columns:1.2fr 1fr;gap:28px;align-items:start;margin-top:10px}
.pd-info h1{font-size:24px;line-height:1.3;margin:0 0 6px}.pd-serial{font-size:30px;color:#c4161c;letter-spacing:2px}
.pd-info .res-stars{text-align:left;margin:4px 0}.pd-price{font-size:36px;font-weight:800;color:var(--g);margin:14px 0}
.pd-btns{display:grid;grid-template-columns:1fr 1fr;gap:10px}.sold-tag{display:inline-block;background:#eee;padding:10px 16px;border-radius:10px;font-weight:700}
.cart-wrap{display:grid;grid-template-columns:1.4fr 1fr;gap:20px;align-items:start}
.cart-row{display:grid;grid-template-columns:180px 1fr auto auto;gap:14px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}
.ci-info a{color:var(--ink);text-decoration:none}.ci-serial{color:#c4161c;font-size:17px}.ci-price{font-weight:800;color:var(--g);white-space:nowrap}
.cart-total{text-align:right;font-size:18px;padding-top:14px}.cart-total b{color:var(--g);font-size:24px}
#toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(120px);background:var(--g3);color:#fff;padding:12px 18px;border-radius:12px;z-index:99;transition:.3s;font-weight:600;max-width:92vw}
#toast.show{transform:translateX(-50%)}#toast.err{background:var(--red)}#toast a{color:var(--gold)}
.bd-info .btn{margin-top:8px}
@media(max-width:960px){.shop-filter{grid-template-columns:1fr 1fr}.bd-pick{grid-column:1/-1}.pdetail,.cart-wrap{grid-template-columns:1fr}}
@media(max-width:760px){.nav-r .menu{order:0}.pgrid{grid-template-columns:1fr 1fr;gap:10px}.pc-serial{font-size:15px}.pc-price{font-size:16px}.pc-foot{flex-direction:column;align-items:stretch;gap:6px}
  .cart-row{grid-template-columns:110px 1fr auto}.cart-row .ci-price{grid-column:2}.cart-row .x{grid-row:1;grid-column:3}}
.note-real .ser.v{writing-mode:vertical-rl;transform:rotate(180deg)}
.note-real .ser .hl{color:inherit!important}