@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@400;500;600&display=swap');
:root{--ink:#162a28;--deep:#102320;--forest:#315a4c;--leaf:#718b70;--gold:#d6a86b;--paper:#f4f0e7;--cream:#faf8f2;--line:#dcded3;--muted:#61706a;--white:#fffdf7;font-family:'Be Vietnam Pro',Arial,sans-serif;color:var(--ink);background:var(--cream);font-synthesis:none}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0}a{color:inherit}button,input,select,textarea{font:inherit}button{cursor:pointer}h1,h2,h3,p{margin-top:0}h1,h2,h3{font-family:'Be Vietnam Pro',Arial,sans-serif;font-weight:400;letter-spacing:-.015em}p{line-height:1.75}img{max-width:100%}.shell{width:min(100% - 48px,1220px);margin-inline:auto}.site-header{position:sticky;top:0;z-index:20;background:rgba(250,248,242,.96);backdrop-filter:blur(18px);border-bottom:1px solid rgba(22,42,40,.1)}.header-inner{min-height:88px;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{display:inline-flex;gap:12px;align-items:center;text-decoration:none;font-family:'Be Vietnam 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@media(max-width:1100px){.nav{gap:12px}.nav a{font-size:12px}.nav .nav-cta{padding:12px}.home-copy h1{font-size:60px}.card-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:800px){.shell{width:min(100% - 34px,1220px)}.header-inner{min-height:72px}.menu-toggle{display:block}.nav{display:none;position:absolute;top:72px;left:0;right:0;background:var(--cream);padding:18px 24px 28px;border-bottom:1px solid var(--line);box-shadow:0 15px 20px #0002;flex-direction:column;align-items:stretch}.nav.is-open{display:flex}.nav a{font-size:14px;padding:9px 0}.nav .nav-cta{text-align:center;margin-top:5px}.home-hero-grid,.page-hero-grid{grid-template-columns:1fr}.home-copy{padding:58px 0 42px}.home-copy h1{font-size:clamp(42px,9vw,62px)}.hero-visual{min-height:390px}.visual-house{transform:translate(-50%,-5%) scale(.8)}.visual-label{font-size:8px}.hero-meta{margin-top:35px;flex-wrap:wrap}.trust-strip .shell{display:grid;grid-template-columns:1fr 1fr}.page-hero-grid{gap:0}.page-hero-grid>div:first-child{padding:50px 0}.blueprint{display:none}.section{padding:65px 0}.split,.calculator{grid-template-columns:1fr;gap:25px}.prose-grid{grid-template-columns:1fr;gap:15px}.footer-grid{grid-template-columns:1fr 1fr;gap:35px}.footer-grid>div:first-child{grid-column:1/-1}.cta-inner{align-items:flex-start;flex-direction:column}.post-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.brand{font-size:10px}.brand strong{font-size:16px}.brand-mark{transform:scale(.85);transform-origin:left center;margin-right:-5px}.home-copy h1{font-size:45px}.lead{font-size:16px}.hero-actions{flex-direction:column;align-items:stretch}.button{justify-content:space-between}.hero-meta{font-size:9px}.hero-visual{min-height:320px}.visual-house{transform:translate(-50%,0) scale(.68)}.trust-strip .shell{font-size:10px}.card-grid,.editorial-grid,.number-list,.calc-fields,.form-grid,.post-grid{grid-template-columns:1fr}.card{min-height:0}.section-title{font-size:31px}.page-hero h1{font-size:40px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}.footer-bottom{gap:14px;flex-direction:column}.brief-form{padding:22px}.empty-posts{align-items:flex-start}.article-end{gap:20px;flex-wrap:wrap}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition-duration:0s!important;animation-duration:0s!important}}
.faq-list{max-width:930px;border-top:1px solid var(--line)}.faq-list details{border-bottom:1px solid var(--line);padding:0 2px}.faq-list summary{list-style:none;cursor:pointer;padding:23px 38px 23px 0;font-family:'Be Vietnam Pro',Arial,sans-serif;font-weight:500;font-size:17px;position:relative;line-height:1.4}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:'+';position:absolute;right:4px;top:20px;color:var(--forest);font-size:23px;font-weight:400}.faq-list details[open] summary:after{content:'−'}.faq-list p{max-width:770px;color:var(--muted);font-size:15px;margin:0 0 24px}
.hero-visual.has-photo{background:#718b70}.hero-visual.has-photo:after,.hero-visual.has-photo .visual-sun,.hero-visual.has-photo .visual-hill,.hero-visual.has-photo .visual-house,.hero-visual.has-photo .visual-label{display:none}.hero-photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;display:block}.hero-photo-caption{position:absolute;z-index:3;bottom:24px;left:24px;background:rgba(16,35,32,.78);color:#fff;padding:9px 12px;font-size:11px;font-weight:500;letter-spacing:.08em}
.article-image{margin:42px 0 0}.article-image img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover}.article-image figcaption{font-size:12px;color:var(--muted);padding-top:9px}.post-cover{display:block;margin:-30px -30px 23px;overflow:hidden}.post-cover img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .25s}.post-cover:hover img{transform:scale(1.03)}
.zalo-float{position:fixed;right:22px;bottom:22px;z-index:50;display:flex;align-items:center;gap:9px;padding:9px 14px 9px 9px;border-radius:999px;background:#0068ff;color:#fff;text-decoration:none;box-shadow:0 9px 27px #003d9d55;font-size:13px;font-weight:500;transition:transform .2s,box-shadow .2s}.zalo-float:hover{transform:translateY(-3px);box-shadow:0 13px 29px #003d9d66}.zalo-icon{width:32px;height:32px;display:block;flex:none;object-fit:contain}.zalo-float:focus-visible{outline:3px solid #e7bd7a;outline-offset:3px}@media(max-width:560px){.zalo-float{right:14px;bottom:14px}.zalo-label{display:none}.zalo-icon{width:36px;height:36px}}
.post-cover--pending{min-height:205px;aspect-ratio:16/9;background:linear-gradient(135deg,#233f38,#5f8065);display:flex;flex-direction:column;justify-content:flex-end;padding:21px;color:#fff;text-decoration:none;position:relative}.post-cover--pending:before,.article-image-placeholder:before{content:'';position:absolute;inset:0;background:repeating-linear-gradient(90deg,transparent 0 36px,#ffffff14 37px),repeating-linear-gradient(0deg,transparent 0 36px,#ffffff14 37px);pointer-events:none}.post-cover--pending span{position:relative;color:#eac690;font-size:10px;font-weight:500;letter-spacing:.15em;text-transform:uppercase}.post-cover--pending strong{position:relative;font-family:'Be Vietnam Pro',Arial,sans-serif;font-size:18px;line-height:1.35;max-width:95%;margin-top:10px}.article-image-placeholder{position:relative;min-height:330px;margin-top:42px;padding:35px;background:linear-gradient(135deg,#1f3a35,#658270);color:#fff;display:flex;flex-direction:column;justify-content:flex-end}.article-image-placeholder span{position:relative;color:#eac690;font-size:11px;font-weight:500;letter-spacing:.15em;text-transform:uppercase}.article-image-placeholder strong{position:relative;font-family:'Be Vietnam Pro',Arial,sans-serif;font-size:clamp(23px,3vw,38px);line-height:1.2;max-width:650px;margin:12px 0}.article-image-placeholder small{position:relative;color:#dbe6d9}.blog-pager{display:flex;flex-wrap:wrap;align-items:center;gap:7px;margin-top:36px}.blog-pager a{min-width:38px;padding:10px 12px;border:1px solid var(--line);text-align:center;text-decoration:none;background:#fff;font-size:13px;font-weight:500}.blog-pager a[aria-current=page]{background:var(--ink);color:#fff}.blog-pager a:hover{border-color:var(--forest)}.article-related{margin-top:46px;padding:26px 30px;background:var(--paper);display:flex;flex-direction:column;gap:11px}.article-related h2{font-size:20px;margin:0 0 8px}.article-related a{font-size:14px;font-weight:500;text-decoration:none}.article-related a:hover{text-decoration:underline}@media(max-width:560px){.article-image-placeholder{min-height:270px;padding:22px}.post-cover--pending{min-height:190px}.blog-pager{gap:5px}.blog-pager a{min-width:34px;padding:8px}}
@media(max-width:560px){.zalo-float .zalo-label{display:inline;font-size:12px}}

strong,b,th{font-weight:500}