:root{--navy:#082c48;--blue:#0c5b8d;--sky:#cfeefe;--gold:#d7b56d;--cream:#f6f2ea;--ink:#102331;--muted:#667784;--white:#fff;--shadow:0 16px 40px rgba(5,31,50,.12)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Montserrat,Arial,sans-serif;color:var(--ink);background:#f8fbfd;line-height:1.6}.container{width:min(1180px,92vw);margin:auto}.site-header{position:sticky;top:0;z-index:50;background:rgba(5,31,50,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.08)}.header-in{height:74px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:12px;color:white;text-decoration:none;font-weight:700}.brand img{height:42px;max-width:150px;object-fit:contain}.nav{margin-left:auto;display:flex;gap:22px}.nav a{color:#e8f3f8;text-decoration:none;font-size:14px;font-weight:600}.hotline{margin-left:8px;padding:11px 18px;border:1px solid rgba(215,181,109,.7);border-radius:999px;color:#fff;text-decoration:none;font-weight:700;white-space:nowrap}.hero{min-height:760px;display:flex;align-items:center;position:relative;color:white;background:linear-gradient(90deg,rgba(4,24,41,.85) 0%,rgba(4,24,41,.55) 42%,rgba(4,24,41,.12) 72%),url('assets/hero.jpg') center/cover no-repeat}.hero:after{content:"";position:absolute;inset:auto 0 0;height:180px;background:linear-gradient(transparent,#f8fbfd)}.hero .container{position:relative;z-index:1}.eyebrow{letter-spacing:.22em;text-transform:uppercase;font-size:13px;font-weight:800;color:#f2cf7c}.hero h1{font-size:clamp(52px,7vw,96px);line-height:.95;margin:18px 0 22px;max-width:840px}.hero h1 em{display:block;font-family:"Playfair Display",Georgia,serif;font-weight:400;color:#f1d38b}.lead{font-size:20px;max-width:720px;color:#eef6f9}.cta-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:15px 22px;border-radius:12px;text-decoration:none;font-weight:800;transition:.25s}.btn.primary{background:linear-gradient(90deg,#e5c36f,#f0d890);color:#082c48;box-shadow:0 0 0 0 rgba(240,216,144,.6);animation:pulse 2.6s infinite}.btn.secondary{border:1px solid rgba(255,255,255,.65);color:white;background:rgba(255,255,255,.06)}@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(240,216,144,.35)}50%{box-shadow:0 0 0 12px rgba(240,216,144,0)}}.quick{margin-top:-54px;position:relative;z-index:3}.quick-grid{display:grid;grid-template-columns:repeat(5,1fr);background:white;border-radius:22px;box-shadow:var(--shadow);overflow:hidden}.quick-item{padding:24px;border-right:1px solid #e9eef1}.quick-item:last-child{border:0}.quick-item b{display:block;font-size:28px;color:var(--blue)}.quick-item span{font-size:13px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}.section{padding:92px 0}.section.alt{background:#eef7fb}.section.dark{background:linear-gradient(135deg,#082c48,#0e557e);color:white}.section-head{max-width:800px;margin-bottom:34px}.section-head h2{font-size:clamp(38px,4.5vw,64px);line-height:1.05;margin:10px 0}.section-head h2 em{font-family:"Playfair Display",Georgia,serif;font-weight:400;color:#2d86b3}.section.dark .section-head h2 em{color:#f0cf7d}.kicker{font-size:12px;letter-spacing:.25em;text-transform:uppercase;font-weight:800;color:#b68a37}.two-col{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}.card{background:white;border-radius:22px;box-shadow:var(--shadow);overflow:hidden}.media img,.media video{display:block;width:100%;height:auto}.copy p{font-size:18px;color:#536572}.copy strong{color:#082c48}.facts{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:26px}.fact{background:#fff;border:1px solid #dfe9ef;border-radius:16px;padding:18px}.fact b{display:block;font-size:22px;color:#0c5b8d}.amenities{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:18px}.amenity{position:relative;border-radius:20px;overflow:hidden;min-height:280px;background:#dcecf4}.amenity img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}.amenity:after{content:"";position:absolute;inset:0;background:linear-gradient(transparent 35%,rgba(4,31,49,.85))}.amenity .caption{position:absolute;z-index:2;left:20px;right:20px;bottom:18px;color:white}.amenity .caption b{font-size:24px}.floor-wrap{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}.floor-card{background:white;border-radius:22px;padding:16px;box-shadow:var(--shadow)}.floor-card img{width:100%;border-radius:14px}.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.news-card{background:white;border-radius:18px;padding:22px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:10px}.news-card h3{font-size:20px;line-height:1.35;margin:0}.news-card p{color:#687883;font-size:14px}.news-card a{margin-top:auto;color:#0c5b8d;font-weight:800;text-decoration:none}.video-wrap{border-radius:22px;overflow:hidden;background:#001a2c;box-shadow:var(--shadow)}.video-wrap video{width:100%;display:block}.news-strip{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.news-strip a{padding:9px 12px;border-radius:999px;background:#e9f5fb;color:#0b5078;text-decoration:none;font-size:13px;font-weight:700}.footer{background:#061f33;color:#dbe7ee;padding:56px 0 28px}.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:34px}.footer a{color:#f0ce78}.footer small{display:block;margin-top:28px;color:#9fb3bf;border-top:1px solid rgba(255,255,255,.12);padding-top:22px}.popup{position:fixed;inset:0;background:rgba(0,22,38,.58);display:none;align-items:center;justify-content:center;z-index:100}.popup.open{display:flex}.popup-card{width:min(520px,92vw);background:white;border-radius:24px;padding:28px;box-shadow:0 22px 80px rgba(0,0,0,.24)}.popup-card h3{font-size:32px;margin:0 0 8px}.popup-card input,.popup-card select{width:100%;padding:13px 14px;margin-top:10px;border:1px solid #d8e3e9;border-radius:12px;font:inherit}.popup-close{float:right;border:0;background:#eef4f7;width:36px;height:36px;border-radius:50%;font-size:20px}.sticky-mobile{display:none}.menu-toggle{display:none}.article-hero{padding:110px 0 60px;background:linear-gradient(135deg,#072d48,#0a6b9e);color:white}.article-hero h1{font-size:clamp(42px,6vw,78px);line-height:1.02;margin:12px 0}.article-body{padding:58px 0 90px}.article-body .content{max-width:820px}.article-body p{font-size:18px;color:#425663}.article-body .source-list a{display:block;margin:10px 0;color:#0c5b8d;font-weight:700;text-decoration:none}@media(max-width:900px){.nav{display:none}.menu-toggle{display:block;margin-left:auto;background:transparent;border:1px solid rgba(255,255,255,.25);color:white;border-radius:10px;padding:8px 11px}.header-in{height:68px}.hero{min-height:690px;background-position:62% center}.hero h1{font-size:54px}.quick-grid{grid-template-columns:repeat(2,1fr)}.quick-item:nth-child(2n){border-right:0}.two-col,.floor-wrap{grid-template-columns:1fr}.amenities{grid-template-columns:1fr 1fr}.amenity:first-child{grid-column:1/-1}.news-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.sticky-mobile{display:flex;position:fixed;z-index:70;bottom:10px;left:10px;right:10px;gap:10px}.sticky-mobile a{flex:1;padding:14px;border-radius:13px;text-align:center;text-decoration:none;font-weight:800;box-shadow:var(--shadow)}.sticky-mobile .call{background:#e4c26e;color:#062942}.sticky-mobile .zalo{background:#0c5b8d;color:#fff}}@media(max-width:560px){.hero{min-height:720px}.hero h1{font-size:46px}.lead{font-size:17px}.quick{margin-top:-30px}.quick-grid{grid-template-columns:1fr 1fr}.quick-item{padding:18px}.quick-item b{font-size:22px}.section{padding:70px 0}.amenities{grid-template-columns:1fr}.amenity:first-child{grid-column:auto}.facts{grid-template-columns:1fr}.brand span{display:none}.hotline{display:none}}

/* V1.1 refinements */
body{font-family:Montserrat,"Arial",sans-serif}.hero h1{font-size:clamp(44px,5.6vw,78px);max-width:760px}.hero h1 em{font-family:Montserrat,Arial,sans-serif;font-size:.58em;line-height:1.18;margin-top:12px;font-weight:600}.section-head h2{font-size:clamp(34px,4vw,56px)}
.site-header,.section,.quick-item,.card,.fact,.amenity,.news-card,.partner-card,.lead-form{transition:transform .35s ease,box-shadow .35s ease,border-color .35s ease,background .35s ease}.quick-item:hover,.fact:hover,.news-card:hover,.partner-card:hover{transform:translateY(-6px);box-shadow:0 18px 42px rgba(5,31,50,.14)}.amenity:hover img{transform:scale(1.035)}.amenity img{transition:transform .6s ease}.nav a{position:relative}.nav a:after{content:"";position:absolute;left:0;right:100%;bottom:-6px;height:2px;background:#f0cf7d;transition:right .25s ease}.nav a:hover:after{right:0}
.call-glow,.hotline,.footer-call{position:relative;overflow:hidden}.call-glow:after,.hotline:after{content:"";position:absolute;top:-50%;left:-70%;width:32%;height:200%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.75),transparent);transform:rotate(22deg);animation:shine 3.2s infinite}@keyframes shine{0%{left:-70%}55%,100%{left:135%}}.hotline:hover,.call-glow:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(240,207,125,.25)}.outline-dark{border:1px solid #0c5b8d;color:#0c5b8d;background:#fff}.partner-card{border-radius:22px;overflow:hidden;box-shadow:var(--shadow);background:white}.partner-card img{display:block;width:100%;height:auto}.partner-section{background:#f7fbfd}.news-card.featured{grid-column:span 2}.news-feature .section-head p{font-size:18px;color:#536572;max-width:880px}
.lead-form{background:#0b483c;color:white;border-radius:22px;padding:28px;box-shadow:var(--shadow)}.lead-form h3{font-size:30px;margin:0 0 20px}.lead-form label{display:block;font-size:13px;letter-spacing:.04em;font-weight:800;color:#e2bc61;margin-top:14px}.lead-form input,.lead-form select,.lead-form textarea{width:100%;margin-top:8px;padding:15px 16px;border:0;border-radius:11px;background:#fff;color:#334;font:inherit;outline:none}.lead-form textarea{resize:vertical}.lead-form .btn{width:100%;border:0;margin-top:16px}.lead-form small{display:block;color:#b8d5cf;margin-top:14px}.form-two{display:grid;grid-template-columns:1fr 1fr;gap:14px}.popup .lead-form{width:min(690px,94vw);max-height:92vh;overflow:auto}.popup-form .popup-close{float:right;background:rgba(255,255,255,.12);color:#fff}.footer-call{display:inline-block;font-size:19px;font-weight:800;text-decoration:none;padding:8px 14px;border:1px solid rgba(240,206,120,.45);border-radius:999px}.sticky-mobile .call{background:linear-gradient(90deg,#e2bc61,#f2d989)}
@media(max-width:900px){.hero h1{font-size:46px}.news-card.featured{grid-column:auto}.form-two{grid-template-columns:1fr}.partner-section .two-col{gap:26px}.lead-form{padding:22px}.nav{position:absolute;top:68px;left:4vw;right:4vw;flex-direction:column;background:#082c48;padding:18px;border-radius:16px;box-shadow:var(--shadow)}}
@media(max-width:560px){.hero h1{font-size:38px;line-height:1.02}.hero h1 em{font-size:.62em}.section-head h2{font-size:34px}.lead-form h3{font-size:25px}.hotline{display:none}}


/* Serena Riverside V1.3 - Legacy 66 typography + Serena blue system */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700;800&family=Playfair+Display:ital,wght@0,500;1,500&display=swap');
:root{--serena:#168ec3;--serena-dark:#07557d;--serena-deep:#062d49;--serena-soft:#eaf7fd;--serena-gold:#e6c579}
body{font-family:Montserrat,Arial,sans-serif;letter-spacing:-.005em}.hero h1,.section-head h2,.distributor-copy h2,.block-title h3{font-family:Montserrat,Arial,sans-serif;font-weight:700;letter-spacing:-.045em}.hero h1 em,.section-head h2 em,.distributor-copy h2 em{font-family:"Playfair Display",Georgia,serif;font-style:italic;font-weight:500;letter-spacing:-.02em}.hero h1 em{font-size:.64em}.section-head h2{font-size:clamp(36px,4vw,58px)}.section-intro{font-size:17px;color:rgba(255,255,255,.76);max-width:840px}.section-intro.dark-text{color:#536572}
.nav a,.btn,.tab-btn,.tower-tab,.subtab{font-family:Montserrat,Arial,sans-serif}.btn,.hotline,.tab-btn,.tower-tab,.subtab,.unit-card,.plan-block,.tab-panel,.distributor-visual,.distributor-copy,.lead-form,.footer-vxs{transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease,background .28s ease,opacity .28s ease}.btn:hover,.tab-btn:hover,.tower-tab:hover,.subtab:hover{transform:translateY(-2px)}.plan-block:hover,.distributor-visual:hover,.unit-card:hover{transform:translateY(-5px);box-shadow:0 22px 50px rgba(5,55,86,.15)}
/* lead form: Serena blue */
.lead-form{background:linear-gradient(145deg,#0874a7 0%,#0b96c9 55%,#07557d 100%);border:1px solid rgba(255,255,255,.18);box-shadow:0 22px 60px rgba(5,63,94,.24)}.lead-form label{color:#fff}.lead-form small{color:#d8f2ff}.lead-form input,.lead-form select,.lead-form textarea{box-shadow:inset 0 0 0 1px rgba(7,85,125,.08)}
/* shine effect */
.shine-btn,.btn.primary,.hotline,.sticky-mobile a{position:relative;overflow:hidden}.shine-btn:after,.btn.primary:after,.hotline:after,.sticky-mobile a:after{content:"";position:absolute;top:-60%;left:-80%;width:34%;height:220%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.82),transparent);transform:rotate(20deg);animation:serenaShine 3.4s infinite;pointer-events:none}@keyframes serenaShine{0%{left:-80%}48%,100%{left:140%}}
/* tab plans */
.amenities-master{background:linear-gradient(135deg,#07557d,#0d95c8 65%,#0b709f)}.tab-bar,.tower-tabs,.subtabs{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0 24px}.tab-btn,.tower-tab,.subtab{appearance:none;border:1px solid rgba(12,91,141,.2);background:#fff;color:#07557d;border-radius:999px;padding:11px 16px;font-size:13px;font-weight:800;cursor:pointer}.amenities-master .tab-btn{background:rgba(255,255,255,.11);border-color:rgba(255,255,255,.3);color:#fff}.tab-btn.active,.tower-tab.active,.subtab.active{background:linear-gradient(110deg,#0c79ad,#18a4d8);color:#fff;border-color:transparent;box-shadow:0 10px 24px rgba(5,104,151,.22)}.amenities-master .tab-btn.active{background:#fff;color:#07557d}.tab-panel{display:none;animation:fadePlan .45s ease}.tab-panel.active{display:block}@keyframes fadePlan{from{opacity:.15;transform:translateY(8px)}to{opacity:1;transform:none}}.tab-panel>img{width:100%;border-radius:18px;display:block;background:#fff;box-shadow:0 18px 50px rgba(3,35,56,.16)}.plan-note{display:flex;gap:12px;flex-direction:column;padding:18px 4px 0}.plan-note b{font-size:20px}.plan-note span{color:rgba(255,255,255,.78)}
.floor-master{background:#f6fbfe}.plan-block{background:#fff;border:1px solid #dcecf4;border-radius:24px;padding:28px;margin-top:24px;box-shadow:0 14px 40px rgba(5,54,84,.08)}.apartment-block{margin-top:32px}.block-title{display:flex;gap:18px;align-items:flex-start}.block-title>span{flex:0 0 48px;width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(145deg,#0d8fc2,#096a99);color:#fff;font-weight:800}.block-title h3{font-size:28px;margin:0 0 5px}.block-title p{margin:0;color:#667784}.floor-panels .tab-panel>img{max-height:760px;object-fit:contain}.tower-tabs{margin-top:30px}.tower-tab{font-size:16px;padding:13px 30px}.tower-panel{display:none}.tower-panel.active{display:block;animation:fadePlan .35s ease}.subtabs{margin:16px 0 20px}.apartment-floor-panel{display:none}.apartment-floor-panel.active{display:block}.floor-panel-head{display:flex;justify-content:space-between;gap:20px;align-items:center;margin:12px 0 18px}.floor-panel-head b,.floor-panel-head span{display:block}.floor-panel-head b{font-size:22px;color:#07557d}.floor-panel-head span{color:#73828c;font-size:14px}.mini-link{color:#0879ad;font-weight:800;text-decoration:none;font-size:13px}.unit-gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.unit-card{display:block;text-decoration:none;color:#183744;border:1px solid #e0ebf0;border-radius:16px;background:#fff;overflow:hidden}.unit-card img{display:block;width:100%;aspect-ratio:4/3;object-fit:contain;background:#f6fafc}.unit-card span{display:block;padding:10px 12px;font-size:12px;font-weight:800;color:#0a6f9f}.cta-center{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:30px}.blue-outline{border:1px solid #0c7fb2;color:#0b6b99;background:#fff}.white-btn{background:#fff;color:#066c9d}
/* distributor Legacy-style, Serena colors */
.distributor-section{background:linear-gradient(135deg,#062d49 0%,#075d86 48%,#0c8fbd 100%);color:#fff}.distributor-grid{display:grid;grid-template-columns:.9fr 1.15fr;gap:58px;align-items:center}.distributor-visual{border-radius:120px 16px 16px 16px;overflow:hidden;box-shadow:0 30px 70px rgba(0,0,0,.22);background:#fff}.distributor-visual img{width:100%;height:auto;display:block}.distributor-copy h2{font-size:clamp(38px,4.4vw,64px);line-height:1.04;margin:12px 0 28px}.distributor-copy h2 em{display:block;color:#e6c579}.distributor-copy p{font-size:18px;color:rgba(255,255,255,.83)}.distributor-copy strong{color:#fff}.distributor-badge{margin:26px 0;padding:20px 22px;border-left:3px solid var(--serena-gold);background:rgba(255,255,255,.10)}.distributor-badge small,.distributor-badge b{display:block}.distributor-badge small{color:#f0d58f;letter-spacing:.16em;font-weight:800;margin-bottom:5px}.distributor-badge b{font-size:20px}.distributor-section .btn.primary{background:linear-gradient(110deg,#e0bd63,#f2dc9d,#e0bd63);color:#062d49}
/* footer */
.new-footer{background:#05283f}.new-footer .footer-grid{grid-template-columns:1.15fr .6fr 1.25fr;align-items:start}.footer-brand img{height:62px;width:auto;margin-bottom:18px}.footer-brand h3{font-size:20px;color:#fff;margin:0 0 12px;max-width:420px}.new-footer p{color:#c8dce6}.footer-vxs{border-left:1px solid rgba(255,255,255,.12);padding-left:26px}.footer-vxs>img{height:70px;width:auto;max-width:230px;object-fit:contain;background:#fff;border-radius:10px;padding:8px;margin-bottom:14px}.footer-vxs>b{display:block;color:#fff;margin-bottom:12px}.new-footer a{color:#f0cf7d}.footer-vxs .footer-call{font-size:17px;padding:5px 12px;margin:8px 0}
@media(max-width:900px){.distributor-grid{grid-template-columns:1fr}.distributor-visual{border-radius:78px 14px 14px 14px}.unit-gallery{grid-template-columns:repeat(2,1fr)}.new-footer .footer-grid{grid-template-columns:1fr}.footer-vxs{border-left:0;padding-left:0}.floor-panel-head{align-items:flex-start;flex-direction:column}}
@media(max-width:560px){.plan-block{padding:18px;border-radius:18px}.block-title h3{font-size:23px}.tab-bar,.subtabs{flex-wrap:nowrap;overflow:auto;padding-bottom:4px}.tab-btn,.subtab{white-space:nowrap}.unit-gallery{grid-template-columns:1fr 1fr;gap:8px}.unit-card span{font-size:10px;padding:8px}.tower-tab{flex:1}.cta-center{display:grid}.cta-center .btn{width:100%}.distributor-copy p{font-size:16px}.distributor-copy h2{font-size:38px}}
/* V1.4 Serena brand refinement */
:root{--deep-river:#014263;--river-depth:#012F48;--serena-gold:#D8B461;--source-mist:#DCE8EA;--living-water:#7BA9B7;--warm-ivory:#F4EFE5;--urban-slate:#53666F}
body{font-family:Inter,Montserrat,Arial,sans-serif}.hero h1,.section-head h2,.distributor-copy h2,.block-title h3,.news-card h3{font-family:Montserrat,Inter,Arial,sans-serif}
.lead-form{background:linear-gradient(145deg,var(--deep-river),#075b82);color:#fff}.lead-form label{color:#dceff7}.lead-form .btn.primary{background:linear-gradient(90deg,#d8b461,#ebd299);color:#012f48}
.fact:hover{background:#dce8ea;border-color:#7ba9b7}.fact:hover b{color:#014263}.overview-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}.overview-actions .btn{background:#014263;color:#fff}.overview-actions .btn.zalo{background:#0b72b5}.overview-actions .btn:hover{background:#7ba9b7;color:#012f48}
.amenity-showcase{margin-top:42px}.amenity-showcase h3{font-size:28px;margin:0 0 18px}.amenity-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.amenity-photo{position:relative;border-radius:18px;overflow:hidden;min-height:230px;box-shadow:var(--shadow);background:#012f48}.amenity-photo img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .55s ease}.amenity-photo:hover img{transform:scale(1.04)}.amenity-photo span{position:absolute;left:0;right:0;bottom:0;padding:34px 16px 14px;color:#fff;font-weight:700;background:linear-gradient(transparent,rgba(1,47,72,.9))}
.news-grid.single{grid-template-columns:1fr}.news-card.featured-news{display:grid;grid-template-columns:1.05fr .95fr;padding:0;overflow:hidden}.news-card.featured-news img{width:100%;height:100%;min-height:330px;object-fit:cover}.news-card.featured-news .news-copy{padding:32px}.news-card.featured-news h3{font-size:30px}.news-card.featured-news p{font-size:16px}
.footer-brand img{height:72px}.footer-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}.footer-actions a{display:inline-flex;padding:11px 16px;border-radius:10px;text-decoration:none;font-weight:800;background:#d8b461;color:#012f48!important;position:relative;overflow:hidden}.footer-actions a.zalo{background:#0b72b5;color:#fff!important}.footer-actions a:after,.shine-btn:after{content:"";position:absolute;top:-55%;left:-75%;width:30%;height:210%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.75),transparent);transform:rotate(20deg);animation:shine 3.2s infinite}.distributor-badge b{font-size:16px}
@media(max-width:900px){.amenity-gallery{grid-template-columns:1fr 1fr}.news-card.featured-news{grid-template-columns:1fr}.news-card.featured-news img{min-height:240px}.footer-brand img{height:58px}}
@media(max-width:560px){.amenity-gallery{grid-template-columns:1fr}.amenity-photo{min-height:210px}.news-card.featured-news .news-copy{padding:22px}.news-card.featured-news h3{font-size:24px}}


/* Serena Riverside official typography system */
:root{
  --serena-blue:#014263;
  --serena-depth:#012F48;
  --serena-gold:#D8B461;
  --serena-mist:#DCE8EA;
  --serena-living:#7BA9B7;
  --serena-ivory:#F4EFE5;
  --serena-slate:#53666F;
}
html,body,button,input,select,textarea{
  font-family:"Inter","Montserrat","Segoe UI",Arial,sans-serif !important;
}
h1,h2,h3,h4,h5,h6,.display,.hero-title,.section-title,.headline{
  font-family:"Allogist","Cormorant Garamond","Times New Roman",serif !important;
  letter-spacing:-.02em;
}
.eyebrow,.kicker,.label,.tab-btn,.btn,.cta,.nav a{
  font-family:"Inter","Montserrat","Segoe UI",Arial,sans-serif !important;
}



.video-feature{padding:72px 0;background:linear-gradient(180deg,var(--serena-depth),var(--serena-blue));color:#fff}
.video-feature .section-kicker{color:var(--serena-gold)}
.video-shell{max-width:1180px;margin:26px auto 0;border-radius:24px;overflow:hidden;box-shadow:0 22px 60px rgba(0,0,0,.24);background:#000;position:relative}
.video-shell video{display:block;width:100%;height:auto;max-height:72vh;object-fit:cover}
.video-note{margin:12px 0 0;color:#dce8ea;font-size:14px}
.legal-cta-wrap{display:flex;justify-content:center;margin:28px 0 0}
.legal-btn,.serena-shine{
  position:relative;overflow:hidden;isolation:isolate
}
.legal-btn::after,.serena-shine::after{
  content:"";position:absolute;top:-50%;left:-65%;width:35%;height:200%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.55),transparent);
  transform:rotate(18deg);transition:left .65s ease;z-index:0
}
.legal-btn:hover::after,.serena-shine:hover::after{left:130%}
.legal-btn>* ,.serena-shine>*{position:relative;z-index:1}
.legal-btn{display:inline-flex;align-items:center;gap:10px;padding:14px 22px;border-radius:999px;
  background:var(--serena-blue);color:#fff!important;text-decoration:none;font-weight:700;
  border:1px solid rgba(216,180,97,.75);box-shadow:0 10px 30px rgba(1,66,99,.2);
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease}
.legal-btn:hover{transform:translateY(-2px);background:#035377;box-shadow:0 16px 34px rgba(1,66,99,.28)}


.location-video-wrap{
  position:relative;
  width:100%;
  aspect-ratio:16/9;
  border-radius:28px;
  overflow:hidden;
  background:#012F48;
  box-shadow:0 18px 48px rgba(1,47,72,.18);
  border:1px solid rgba(216,180,97,.28);
  transition:transform .28s ease,box-shadow .28s ease;
}
.location-video-wrap:hover{
  transform:translateY(-3px);
  box-shadow:0 24px 58px rgba(1,47,72,.24);
}
.location-video-wrap iframe{
  width:100%;
  height:100%;
  border:0;
  display:block;
}
.location-video-note{
  position:absolute;
  left:16px;
  bottom:14px;
  padding:8px 12px;
  border-radius:999px;
  background:rgba(1,47,72,.74);
  color:#fff;
  font-size:12px;
  letter-spacing:.08em;
  backdrop-filter:blur(8px);
  pointer-events:none;
}
@media(max-width:768px){
  .location-video-wrap{border-radius:18px}
  .location-video-note{font-size:10px;left:10px;bottom:10px}
}

.hp-field{position:absolute!important;left:-99999px!important;opacity:0!important;pointer-events:none!important}


form[action*="formsubmit.co"] button[type="submit"][disabled]{
  opacity:.72;cursor:wait;filter:saturate(.8)
}

.news-child-page{padding-top:20px}.news-child-page #tin-tuc{margin-top:0}

.location-video-local video{
  width:100%;
  height:100%;
  display:block;
  object-fit:cover;
  background:#012F48;
}
.location-video-local{aspect-ratio:16/9}

.prosperity-section{padding:76px 0;background:linear-gradient(180deg,#f4efe5 0%,#eef6f7 100%)}
.prosperity-grid{display:grid;grid-template-columns:minmax(320px,.9fr) minmax(420px,1.1fr);gap:58px;align-items:center}
.prosperity-poster{border-radius:28px;overflow:hidden;box-shadow:0 24px 60px rgba(1,47,72,.16)}
.prosperity-poster img{width:100%;display:block;transition:transform .55s ease}
.prosperity-poster:hover img{transform:scale(1.025)}
.prosperity-content h2{margin:12px 0 28px;color:#012F48;font-size:clamp(38px,4.2vw,64px);line-height:1.02}
.prosperity-content h2 em{color:#2d8fbd;font-weight:inherit}
.prosperity-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.prosperity-item{padding:20px;border-radius:18px;background:rgba(255,255,255,.8);border:1px solid rgba(1,66,99,.1);box-shadow:0 10px 24px rgba(1,47,72,.06)}
.prosperity-item strong{display:block;color:#014263;font-size:26px;margin-bottom:5px}
.prosperity-item span{color:#53666F;line-height:1.5}
.prosperity-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.prosperity-actions a{display:inline-flex;align-items:center;justify-content:center;padding:15px 22px;border-radius:999px;text-decoration:none;font-weight:800;transition:transform .25s ease,box-shadow .25s ease}
.prosperity-call{background:linear-gradient(90deg,#D8B461,#ead08d);color:#012F48;box-shadow:0 12px 26px rgba(216,180,97,.26)}
.prosperity-zalo{background:#014263;color:#fff;border:1px solid rgba(216,180,97,.5)}
.prosperity-actions a:hover{transform:translateY(-2px)}
@media(max-width:850px){
 .prosperity-section{padding:52px 0}
 .prosperity-grid{grid-template-columns:1fr;gap:32px}
 .prosperity-content h2{font-size:clamp(34px,9vw,48px)}
}
@media(max-width:520px){
 .prosperity-list{grid-template-columns:1fr}
 .prosperity-actions a{width:100%}
 .prosperity-poster{border-radius:20px}
}

/* V1.10 prosperity heading + hover + typing refinements */
.prosperity-title{
  margin:12px 0 30px!important;
  color:#012F48!important;
  font-size:clamp(40px,4.4vw,68px)!important;
  line-height:.98!important;
  letter-spacing:-.02em;
}
.prosperity-title .title-line{
  display:block;
  white-space:nowrap;
}
.prosperity-title .title-emphasis{
  color:#2d8fbd;
  font-style:italic;
  min-height:1.05em;
}
.prosperity-title .typing-title::after,
.typing-strong.is-typing::after,
.typing-copy.is-typing::after{
  content:"";
  display:inline-block;
  width:2px;
  height:.9em;
  margin-left:4px;
  vertical-align:-.05em;
  background:currentColor;
  animation:serenaCaret .75s steps(1,end) infinite;
}
@keyframes serenaCaret{50%{opacity:0}}

.prosperity-item{
  position:relative;
  overflow:hidden;
  transition:transform .28s ease, box-shadow .28s ease, border-color .28s ease, background .28s ease;
}
.prosperity-item::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(115deg,transparent 0%,rgba(216,180,97,.14) 45%,transparent 70%);
  transform:translateX(-120%);
  transition:transform .55s ease;
  pointer-events:none;
}
.prosperity-item:hover{
  transform:translateY(-7px) scale(1.015);
  box-shadow:0 18px 38px rgba(1,47,72,.13);
  border-color:rgba(216,180,97,.55);
  background:#fff;
}
.prosperity-item:hover::before{transform:translateX(120%)}
.prosperity-item strong{
  transition:transform .28s ease,color .28s ease;
}
.prosperity-item:hover strong{
  transform:translateX(3px);
  color:#D8B461;
}

@media(max-width:1100px){
  .prosperity-title{font-size:clamp(38px,5.2vw,58px)!important}
}
@media(max-width:850px){
  .prosperity-title .title-line{white-space:normal}
  .prosperity-title{line-height:1.04!important}
}

/* V1.11 - Vị trí: route copy + two-image gallery */
.location-expansion{margin-top:42px}
.location-expansion-copy{
  max-width:1180px;
  margin:0 auto 28px;
  padding:26px 30px;
  border-radius:22px;
  background:linear-gradient(135deg,rgba(255,255,255,.92),rgba(220,232,234,.78));
  border:1px solid rgba(1,66,99,.12);
  box-shadow:0 14px 34px rgba(1,47,72,.07);
  color:#53666F;
  font-size:17px;
  line-height:1.7;
}
.location-expansion-copy p{margin:0 0 8px}
.location-expansion-copy p:last-child{margin-bottom:0}
.location-route{color:#014263;font-size:18px}
.location-route strong{font-weight:800}
.location-route span{color:#D8B461;padding:0 5px}
.location-gallery{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:22px;
}
.location-gallery-card{
  position:relative;
  margin:0;
  border-radius:24px;
  overflow:hidden;
  background:#012F48;
  box-shadow:0 18px 46px rgba(1,47,72,.15);
  border:1px solid rgba(216,180,97,.24);
}
.location-gallery-card img{
  display:block;
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  transition:transform .55s ease,filter .4s ease;
}
.location-gallery-card figcaption{
  position:absolute;
  left:14px;
  bottom:14px;
  padding:8px 12px;
  border-radius:999px;
  background:rgba(1,47,72,.76);
  color:#fff;
  font-size:12px;
  letter-spacing:.04em;
  backdrop-filter:blur(8px);
}
.location-gallery-card:hover img{transform:scale(1.035);filter:saturate(1.06)}
@media(max-width:780px){
  .location-expansion{margin-top:30px}
  .location-expansion-copy{padding:20px;font-size:15px;border-radius:18px}
  .location-route{font-size:16px}
  .location-gallery{grid-template-columns:1fr;gap:16px}
  .location-gallery-card{border-radius:18px}
}

/* V1.12 - compact reordered location gallery */
.location-gallery{
  max-width:1180px;
  margin:0 auto;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
}
.location-gallery-card{
  border-radius:20px;
}
.location-gallery-card img{
  aspect-ratio:16/9;
}
@media(min-width:1200px){
  .location-gallery{max-width:1040px}
}
@media(max-width:780px){
  .location-gallery{max-width:560px;margin:0 auto;grid-template-columns:1fr}
}

/* V1.13 - location gallery full width */
.location-gallery{
  width:100%!important;
  max-width:none!important;
  margin-left:0!important;
  margin-right:0!important;
}
@media(min-width:1200px){
  .location-gallery{max-width:none!important}
}

.legal-inline-btn{
  background:transparent!important;
  color:#fff!important;
  border:1px solid rgba(216,180,97,.72)!important;
  box-shadow:none!important;
}
.legal-inline-btn:hover{
  background:#D8B461!important;
  color:#012F48!important;
  transform:translateY(-2px);
}
.legal-cta-wrap{display:none!important}

.floor-title em{
  display:block;
  margin-top:.08em;
}

.contact-zalo-hotline{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  padding:13px 18px;
  border-radius:999px;
  background:linear-gradient(90deg,#D8B461,#ead08d);
  color:#012F48!important;
  text-decoration:none;
  font-weight:800;
  border:1px solid rgba(255,255,255,.28);
  box-shadow:0 12px 28px rgba(1,47,72,.18);
  transition:transform .25s ease,box-shadow .25s ease;
}
.contact-zalo-hotline:hover{
  transform:translateY(-3px);
  box-shadow:0 17px 34px rgba(1,47,72,.26);
}
.contact-hotline-wrap{margin:18px 0}

/* V1.14 - Serena Home Resort overview */
.overview-new-copy{
  color:#53666F;
  font-size:17px;
  line-height:1.72;
  margin:18px 0 24px;
}
.overview-new-copy p{margin:0 0 14px}
.overview-new-copy strong{color:#012F48}
.overview-signature{
  padding:15px 18px;
  border-left:3px solid #D8B461;
  background:rgba(220,232,234,.55);
  border-radius:0 14px 14px 0;
  color:#014263;
}
@media(max-width:600px){
  .overview-new-copy{font-size:15.5px;line-height:1.65}
}

/* V1.17 - Serena showroom opening news */
.showroom-news-v117{background:linear-gradient(180deg,#f4efe5 0%,#fff 100%)}
.showroom-news-v117 .section-head{max-width:900px}
.showroom-feature-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:34px;align-items:center}
.showroom-feature-media{border-radius:24px;overflow:hidden;box-shadow:0 20px 50px rgba(1,66,99,.14)}
.showroom-feature-media img{display:block;width:100%;height:auto}
.showroom-feature-copy{font-size:17px;line-height:1.72;color:#53666f}
.showroom-feature-copy strong{color:#012f48}
.showroom-cta-row{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:22px}
.showroom-readmore{font-weight:700;color:#014263;text-decoration:none;padding:10px 2px}
.news-detail-feature.v117{padding:70px 0;background:#f4efe5}
.news-detail-feature.v117 h1{max-width:980px;color:#012f48;margin:10px 0 18px}
.news-lead{max-width:900px;font-size:19px;line-height:1.7;color:#53666f}
.news-event-info{display:inline-block;margin:12px 0 28px;padding:14px 18px;border-left:3px solid #d8b461;background:#fff;border-radius:0 12px 12px 0;color:#014263}
.news-gallery-v117{display:grid;grid-template-columns:.72fr 1.28fr;gap:18px;margin:22px 0 28px}
.news-gallery-v117 figure{margin:0;border-radius:20px;overflow:hidden;background:#fff}
.news-gallery-v117 img{display:block;width:100%;height:100%;object-fit:cover}
.news-video-v117{margin:28px 0;border-radius:20px;overflow:hidden;background:#012f48}
.news-video-v117 video{display:block;width:100%;max-height:680px;background:#012f48}
.news-cta-v117{margin-top:30px;padding:24px;border-radius:20px;background:#014263;color:#fff}
.news-cta-v117 strong{font-size:21px}
.news-cta-v117 .btn{margin:8px 8px 0 0}
@media(max-width:800px){
  .showroom-feature-grid,.news-gallery-v117{grid-template-columns:1fr}
  .showroom-feature-copy{font-size:15.5px}
  .news-detail-feature.v117{padding:45px 0}
}

/* V1.20 - Policy menu + stronger policy highlight */
#song-thinh-vuong{scroll-margin-top:92px}
.nav .policy-nav-link{
  color:#D8B461;
  position:relative;
}
.nav .policy-nav-link::after{
  content:"";
  position:absolute;
  left:18%;
  right:18%;
  bottom:-7px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,#D8B461,#EBD299,#D8B461);
  transform:scaleX(.72);
  transition:transform .25s ease;
}
.nav .policy-nav-link:hover::after{transform:scaleX(1)}
.prosperity-section{
  position:relative;
  overflow:hidden;
}
.prosperity-section::after{
  content:"";
  position:absolute;
  width:420px;
  height:420px;
  right:-120px;
  top:-120px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(216,180,97,.15),rgba(216,180,97,0) 68%);
  pointer-events:none;
}
.policy-kicker-v120{
  display:inline-flex !important;
  align-items:center;
  gap:9px;
  width:auto;
  padding:9px 16px !important;
  border:1px solid rgba(216,180,97,.78);
  border-radius:999px;
  background:linear-gradient(90deg,rgba(216,180,97,.14),rgba(244,239,229,.96),rgba(216,180,97,.14));
  color:#8B6B24 !important;
  font-weight:800 !important;
  letter-spacing:.13em !important;
  box-shadow:0 8px 24px rgba(216,180,97,.16);
}
.policy-kicker-v120 span{
  color:#D8B461;
  font-size:12px;
}
.prosperity-list .prosperity-item{
  border:1px solid rgba(216,180,97,.28);
}
@media(max-width:800px){
  #song-thinh-vuong{scroll-margin-top:76px}
  .policy-kicker-v120{
    padding:8px 12px !important;
    font-size:10.5px !important;
    letter-spacing:.09em !important;
  }
}

/* V1.21 gifts */
.event-gift-teaser-v121{margin:18px 0 2px;padding:13px 16px;border:1px solid rgba(216,180,97,.55);border-radius:14px;background:linear-gradient(90deg,rgba(216,180,97,.14),rgba(244,239,229,.7));color:#014263}.event-gift-teaser-v121 strong{display:block;margin-bottom:3px;color:#8a6922}.event-gift-teaser-v121 span{font-size:14px}.serena-gift-v121{margin:34px 0;padding:28px;border-radius:24px;background:#fff;border:1px solid rgba(1,66,99,.10)}.gift-grid-v121{display:grid;grid-template-columns:.72fr 1.28fr;gap:30px;align-items:start}.gift-poster-v121{margin:0;border-radius:20px;overflow:hidden;box-shadow:0 18px 45px rgba(1,66,99,.12)}.gift-poster-v121 img{display:block;width:100%;height:auto}.gift-copy-v121 h2{color:#012f48;margin:8px 0 16px}.gift-copy-v121 h2 em{color:#2e8ab8}.gift-copy-v121 p{color:#53666f;line-height:1.7}.gift-card-v121{margin:18px 0;padding:18px 20px;border-radius:16px;background:#f4efe5;border-left:3px solid #d8b461}.gift-card-v121 h3{margin:0 0 10px;color:#014263}.gift-card-v121 ul{margin:0;padding-left:20px;color:#53666f;line-height:1.8}.gift-count-v121{background:#dce8ea}.gift-count-v121 p{margin:5px 0}.gift-event-v121{margin-top:18px;padding:14px 16px;border-radius:14px;background:#014263;color:#fff;line-height:1.7}.gift-closing-v121 strong{color:#014263}.gift-cta-v121{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}@media(max-width:800px){.gift-grid-v121{grid-template-columns:1fr}.serena-gift-v121{padding:18px}}