:root{--ink:#15152b;--muted:#62627a;--primary:#5138e9;--primary-dark:#312e81;--cyan:#28c7df;--line:#e6e5ef;--paper:#fbfbff;--white:#fff;--shadow:0 28px 70px rgba(44,37,116,.18)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:Inter,"Segoe UI",Arial,sans-serif;background:var(--paper);line-height:1.6}a{color:inherit;text-decoration:none}.site-header{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;max-width:1220px;margin:0 auto;padding:18px 28px;background:rgba(251,251,255,.9);backdrop-filter:blur(16px);border-bottom:1px solid rgba(230,229,239,.75)}.brand{display:flex;align-items:center;gap:11px}.brand img{border-radius:12px}.brand span{display:flex;flex-direction:column;line-height:1.15}.brand strong{font-size:15px}.brand small{font-size:12px;color:var(--muted);margin-top:4px}.site-header nav{display:flex;align-items:center;gap:28px;font-size:14px;font-weight:650}.site-header nav>a:not(.nav-cta):hover{color:var(--primary)}.nav-cta{padding:9px 16px;color:white;background:var(--ink);border-radius:999px}.hero{min-height:740px;display:grid;grid-template-columns:1fr 1.1fr;align-items:center;gap:64px;max-width:1220px;margin:0 auto;padding:90px 28px 110px;overflow:hidden}.eyebrow{margin:0 0 18px;color:var(--primary);font-size:12px;font-weight:800;letter-spacing:.13em;text-transform:uppercase}.eyebrow span{display:inline-block;width:22px;height:2px;margin:0 8px 3px 0;background:var(--cyan)}h1{max-width:680px;margin:0;font-size:clamp(48px,6vw,78px);line-height:1.01;letter-spacing:-.055em}h1 em{color:var(--primary);font-style:normal}.lead{max-width:620px;margin:28px 0;color:var(--muted);font-size:19px;line-height:1.75}.hero-actions{display:flex;gap:12px;margin:32px 0}.button{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 24px;border-radius:13px;font-weight:750;transition:.2s transform,.2s box-shadow}.button:hover{transform:translateY(-2px)}.button.primary{color:white;background:linear-gradient(135deg,var(--primary),#8039ed);box-shadow:0 12px 30px rgba(81,56,233,.28)}.button.secondary{background:white;border:1px solid var(--line)}.trust-list{display:flex;gap:24px;margin:30px 0 0;padding:0;list-style:none;color:var(--muted);font-size:13px}.trust-list li{position:relative;padding-left:16px}.trust-list li:before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--cyan)}.trust-list b{color:var(--ink)}.hero-visual{position:relative;z-index:1}.hero-visual .glow{position:absolute;z-index:-1;inset:-90px;background:radial-gradient(circle at 48% 46%,rgba(81,56,233,.26),rgba(40,199,223,.12) 40%,transparent 70%);filter:blur(20px)}.hero-visual>img{display:block;width:100%;height:auto;border:8px solid rgba(255,255,255,.8);border-radius:24px;box-shadow:var(--shadow);transform:perspective(1100px) rotateY(-4deg) rotateX(2deg)}.floating-card{position:absolute;right:-18px;bottom:-30px;display:flex;align-items:center;gap:12px;padding:15px 18px;background:white;border:1px solid var(--line);border-radius:16px;box-shadow:0 18px 44px rgba(28,27,72,.2)}.floating-card>span{display:grid;place-items:center;width:34px;height:34px;color:white;background:#19bda5;border-radius:50%;font-weight:900}.floating-card div{display:flex;flex-direction:column}.floating-card strong{font-size:13px}.floating-card small{color:var(--muted)}.section{max-width:1220px;margin:0 auto;padding:110px 28px}.section-heading{max-width:700px;margin-bottom:52px}.section-heading h2,.privacy-copy h2,.closing h2{margin:0 0 18px;font-size:clamp(34px,4vw,52px);line-height:1.12;letter-spacing:-.04em}.section-heading>p:last-child{color:var(--muted);font-size:17px}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.feature-grid article{min-height:238px;padding:30px;border:1px solid var(--line);border-radius:21px;background:white;box-shadow:0 9px 30px rgba(36,33,93,.05)}.feature-icon{display:grid;place-items:center;width:45px;height:45px;margin-bottom:28px;color:var(--primary);background:#eeebff;border-radius:13px;font-size:21px;font-weight:900}.feature-grid h3{margin:0 0 9px;font-size:19px}.feature-grid p{margin:0;color:var(--muted)}.privacy-section{display:grid;grid-template-columns:1fr 1fr;gap:85px;align-items:center;margin:70px auto;max-width:1164px;padding:74px;background:linear-gradient(145deg,#171632,#282262);border-radius:30px;color:white;box-shadow:var(--shadow)}.eyebrow.light{color:#72e4ef}.privacy-copy>p:not(.eyebrow){color:#cbc9e3;font-size:17px}.privacy-links{display:flex;flex-wrap:wrap;gap:20px;margin-top:30px}.privacy-links a{color:#8be8ef;font-size:14px;font-weight:700}.privacy-points{display:flex;flex-direction:column;gap:10px;margin:0;padding:0;list-style:none}.privacy-points li{display:flex;gap:18px;padding:20px;background:rgba(255,255,255,.075);border:1px solid rgba(255,255,255,.1);border-radius:17px}.privacy-points>li>span{color:#72e4ef;font-size:12px;font-weight:900}.privacy-points div{display:flex;flex-direction:column}.privacy-points strong{font-size:15px}.privacy-points small{margin-top:5px;color:#bbb9d7;line-height:1.55}.pricing .section-heading{text-align:center;margin-left:auto;margin-right:auto}.price-card{display:grid;grid-template-columns:1fr 1px 1.2fr auto;align-items:center;gap:40px;max-width:920px;margin:0 auto;padding:34px 38px;background:white;border:1px solid var(--line);border-radius:24px;box-shadow:0 15px 50px rgba(37,31,109,.09)}.price-card p{margin:0 0 4px;color:var(--muted);font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.07em}.price-card strong{display:block;font-size:32px;line-height:1.2}.price-card sup{font-size:17px}.price-card small{color:var(--muted)}.divider{height:76px;background:var(--line)}.price-note{text-align:center;color:var(--muted);font-size:13px}.closing{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:28px;max-width:1164px;margin:30px auto 100px;padding:52px 58px;color:white;background:linear-gradient(120deg,#5138e9,#6e37e9 58%,#1cb9cd);border-radius:30px}.closing img{border-radius:20px;box-shadow:0 12px 26px rgba(30,24,98,.25)}.closing .eyebrow{margin-bottom:8px}.closing h2{margin-bottom:8px}.closing p:last-child{margin:0;color:#eeeaff}.button.white{color:var(--primary-dark);background:white;white-space:nowrap}footer{display:grid;grid-template-columns:1fr 1.3fr auto;align-items:start;gap:45px;max-width:1220px;margin:0 auto;padding:40px 28px 60px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}footer strong{color:var(--ink);font-size:14px}footer p{margin:5px 0}.footer-links{display:flex;gap:17px;font-weight:700}.footer-links a:hover{color:var(--primary)}
@media(max-width:900px){.site-header nav>a:not(.nav-cta){display:none}.hero{grid-template-columns:1fr;padding-top:64px}.hero-copy{text-align:center}.hero-copy .lead{margin-left:auto;margin-right:auto}.hero-actions,.trust-list{justify-content:center}.hero-visual{max-width:680px;margin:15px auto 0}.feature-grid{grid-template-columns:repeat(2,1fr)}.privacy-section{grid-template-columns:1fr;margin-left:20px;margin-right:20px;padding:50px}.price-card{grid-template-columns:1fr;text-align:center}.price-card .divider{width:100%;height:1px}.closing{grid-template-columns:1fr;text-align:center;margin-left:20px;margin-right:20px}.closing img{margin:auto}.closing .button{justify-self:center}footer{grid-template-columns:1fr;text-align:center}.footer-links{justify-content:center}}
@media(max-width:580px){.site-header{padding:14px 18px}.nav-cta{padding:8px 13px}.hero{padding:54px 20px 85px}h1{font-size:45px}.lead{font-size:17px}.hero-actions{flex-direction:column}.trust-list{flex-direction:column;gap:6px;align-items:center}.floating-card{position:relative;right:auto;bottom:auto;margin:-8px 14px 0;text-align:left}.section{padding:82px 20px}.feature-grid{grid-template-columns:1fr}.privacy-section{padding:38px 24px}.privacy-links{flex-direction:column;gap:10px}.price-card{padding:30px 22px}.closing{padding:42px 24px}.closing h2{font-size:34px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button{transition:none}}

/* Phần Mềm Số portfolio home */
.portfolio-home{background:#f8f8fc}.portfolio-header{position:absolute;z-index:10;top:0;left:50%;transform:translateX(-50%);display:flex;align-items:center;justify-content:space-between;width:min(1164px,calc(100% - 40px));padding:24px 0;color:white;border-bottom:1px solid rgba(255,255,255,.14)}.portfolio-brand{display:flex;align-items:center;gap:12px}.portfolio-brand>span:last-child{display:flex;flex-direction:column;line-height:1.1}.portfolio-brand strong{font-size:16px}.portfolio-brand small{margin-top:5px;color:#aaa8ca;font-size:11px;letter-spacing:.08em}.portfolio-mark{display:grid;place-items:center;width:42px;height:42px;color:white;background:linear-gradient(135deg,#7764ff,#25c4da);border-radius:13px;font-size:22px;font-weight:900;box-shadow:0 10px 24px rgba(29,195,218,.2)}.portfolio-header nav{display:flex;gap:28px;font-size:14px;font-weight:700}.portfolio-header nav a:hover{color:#79e5ef}.portfolio-hero{position:relative;isolation:isolate;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:720px;padding:150px 24px 120px;color:white;text-align:center;background:radial-gradient(circle at 50% 20%,#383387 0,#1c1a42 36%,#111025 76%);overflow:hidden}.portfolio-hero:after{content:"";position:absolute;z-index:-1;bottom:-210px;width:780px;height:340px;background:rgba(50,210,224,.13);border-radius:50%;filter:blur(65px)}.portfolio-hero h1{max-width:980px;font-size:clamp(52px,7vw,92px)}.portfolio-hero h1 em{color:#7ce8ef}.portfolio-hero>p:not(.eyebrow){max-width:720px;margin:30px auto 36px;color:#c7c5db;font-size:19px}.portfolio-hero .button{min-width:205px}.portfolio-orbit{position:absolute;z-index:-1;border:1px solid rgba(122,229,239,.16);border-radius:50%}.orbit-one{width:760px;height:760px;top:-490px;right:-170px}.orbit-two{width:560px;height:560px;bottom:-360px;left:-210px}.portfolio-products{max-width:1164px;margin:0 auto;padding:120px 0}.portfolio-heading{display:grid;grid-template-columns:1.25fr .75fr;gap:90px;align-items:end;margin-bottom:56px}.portfolio-heading h2,.portfolio-future h2{margin:0;font-size:clamp(34px,4.5vw,56px);line-height:1.12;letter-spacing:-.045em}.portfolio-heading>p{margin:0;color:var(--muted);font-size:17px}.product-showcase{display:grid;grid-template-columns:.9fr 1.1fr;min-height:500px;background:white;border:1px solid var(--line);border-radius:30px;box-shadow:0 28px 75px rgba(35,31,91,.11);overflow:hidden}.product-copy{display:flex;flex-direction:column;align-items:flex-start;justify-content:center;padding:58px}.product-title{display:flex;align-items:center;gap:18px}.product-title img{border-radius:19px}.product-title span{color:var(--primary);font-size:11px;font-weight:850;letter-spacing:.1em;text-transform:uppercase}.product-title h3{margin:2px 0 0;font-size:28px;line-height:1.1}.product-title small{color:var(--muted)}.product-copy>p{margin:28px 0 18px;color:var(--muted);font-size:17px}.product-copy ul{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 30px;padding:0;list-style:none}.product-copy li{padding:7px 11px;color:#46435f;background:#f2f0ff;border-radius:999px;font-size:12px;font-weight:700}.product-copy .button span{margin-left:12px;font-size:20px}.product-preview{position:relative;display:flex;align-items:center;padding:58px 0 58px 44px;background:linear-gradient(145deg,#e8faff,#eeeaff);overflow:hidden}.product-preview:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 90% 10%,rgba(81,56,233,.24),transparent 48%)}.product-preview img{position:relative;width:780px;max-width:none;height:auto;border:6px solid white;border-radius:19px;box-shadow:0 24px 60px rgba(38,33,106,.22);transition:transform .35s ease}.product-preview:hover img{transform:translateX(-8px) scale(1.01)}.portfolio-future{display:grid;grid-template-columns:auto 1fr;gap:42px;max-width:1164px;margin:0 auto 120px;padding:58px 64px;border:1px dashed #c8c5dc;border-radius:28px;background:#f1f0f8}.future-symbol{display:grid;place-items:center;width:74px;height:74px;color:#6d68a4;background:white;border:1px solid var(--line);border-radius:21px;font-size:36px}.portfolio-future h2{font-size:38px}.portfolio-future p:last-child{max-width:720px;margin-bottom:0;color:var(--muted)}.portfolio-footer{display:grid;grid-template-columns:1fr 1fr auto;gap:45px;align-items:center;max-width:1164px;margin:0 auto;padding:42px 0 62px;border-top:1px solid var(--line);color:var(--muted);font-size:13px}.portfolio-footer strong{color:var(--ink);font-size:16px}.portfolio-footer p{margin:4px 0}.portfolio-footer>a{color:var(--primary);font-weight:750}
@media(max-width:900px){.portfolio-products{padding-left:20px;padding-right:20px}.portfolio-heading{grid-template-columns:1fr;gap:20px}.product-showcase{grid-template-columns:1fr}.product-preview{min-height:390px;padding-left:35px}.portfolio-future{margin-left:20px;margin-right:20px}.portfolio-footer{grid-template-columns:1fr;text-align:center;margin-left:20px;margin-right:20px}.portfolio-header{width:calc(100% - 40px)}}
@media(max-width:580px){.portfolio-header nav a:first-child{display:none}.portfolio-header nav{gap:0}.portfolio-hero{min-height:680px;padding-left:20px;padding-right:20px}.portfolio-hero h1{font-size:47px}.portfolio-hero>p:not(.eyebrow){font-size:17px}.portfolio-products{padding-top:84px;padding-bottom:84px}.portfolio-heading h2{font-size:36px}.product-copy{padding:34px 24px}.product-title img{width:58px;height:58px}.product-title h3{font-size:23px}.product-preview{min-height:260px;padding:34px 0 34px 24px}.product-preview img{width:500px}.portfolio-future{grid-template-columns:1fr;padding:36px 26px}.portfolio-future h2{font-size:32px}}