/* ==========================================================
   Bảng màu: trắng + xanh da trời là chủ đạo,
   xanh nõn chuối chỉ điểm xuyết (nhãn nhỏ, biểu tượng) cho đỡ chói.
   ========================================================== */
:root{
  --xanh:#2a9df4;        /* xanh da trời chính */
  --xanh-dam:#0b6fc2;    /* nút, chữ nhấn trên nền trắng */
  --xanh-nhat:#eaf6ff;   /* nền khối nhạt */
  --xanh-vua:#cfe8fb;    /* viền, đường kẻ */
  --chuoi:#a5d13f;       /* xanh nõn chuối — dùng ít */
  --chuoi-dam:#5f8a12;
  --chu:#12304f; --chu-nhat:#5b6b7d; --nen:#ffffff; --nen-mem:#f4f9fe;
  --vien:#dbe8f4; --bo:14px;
  --f-tieu-de:"Barlow Condensed",system-ui,sans-serif;
  --f-chu:"Be Vietnam Pro",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px}
body{margin:0;font-family:var(--f-chu);color:var(--chu);background:var(--nen);line-height:1.6;font-size:16px}
img,video,iframe{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3{font-family:var(--f-tieu-de);line-height:1.05;margin:0 0 .5em;letter-spacing:.2px;color:var(--chu)}
h2{font-size:clamp(30px,4vw,44px);text-transform:uppercase}
h3{font-size:22px}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px}
.eyebrow{color:var(--xanh-dam);font-weight:700;font-size:13px;letter-spacing:1.5px;text-transform:uppercase;margin:0 0 8px}
.small{font-size:13px}

/* đánh dấu chỗ cần anh xác nhận */
.cxn{background:#fff3a6;color:#5a4500;padding:1px 6px;border-radius:4px;box-decoration-break:clone;-webkit-box-decoration-break:clone}
body.live .cxn{display:none}
.draft-bar{background:#fff3a6;color:#4a3a00;font-size:14px;padding:8px 20px;text-align:center;position:relative}
.draft-bar mark{background:#ffe14d}
.draft-bar button{margin-left:10px;border:1px solid #c9a800;background:transparent;border-radius:6px;padding:2px 10px;cursor:pointer;font:inherit}

/* nút */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 22px;border-radius:999px;font-weight:700;text-decoration:none;border:2px solid transparent;cursor:pointer;font-family:inherit;font-size:15px;transition:transform .15s,background .15s,box-shadow .15s;white-space:nowrap}
.btn:hover{transform:translateY(-1px)}
.btn-cam{background:var(--xanh-dam);color:#fff;box-shadow:0 8px 20px #0b6fc233}
.btn-cam:hover{background:#095ea6}
.btn-vien{border-color:var(--xanh);color:var(--xanh-dam);background:#fff}
.btn-vien:hover{background:var(--xanh-nhat)}
.btn-sm{padding:8px 16px;font-size:14px}
.btn-block{width:100%}
.badge{background:#fff;color:var(--xanh-dam);border-radius:999px;font-size:12px;min-width:20px;height:20px;display:inline-grid;place-items:center;padding:0 6px}

/* nav */
.topnav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);color:var(--chu);box-shadow:0 1px 0 var(--vien)}
.nav-inner{display:flex;align-items:center;gap:24px;height:64px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none}
.logo svg{width:38px;height:38px}
.logo b{font-family:var(--f-tieu-de);font-size:22px;letter-spacing:1px;display:block;line-height:1}
.logo small{color:var(--xanh-dam);font-size:12px;font-weight:600}
.menu{display:flex;gap:22px;margin-left:auto}
.menu a{text-decoration:none;font-size:15px;font-weight:500}
.menu a:hover{color:var(--xanh-dam)}
.burger{display:none;background:none;border:0;width:40px;height:40px;cursor:pointer;flex-direction:column;justify-content:center;gap:5px;padding:8px}
.burger span{display:block;height:2px;background:var(--chu);border-radius:2px}

/* logo: có logo.png thì dùng, không thì giữ hình bánh xe */
.logo-img{height:46px;width:auto;max-width:170px;object-fit:contain}
.logo-img ~ .logo-svg,.logo-img ~ span{display:none}
.foot-logo{display:block;height:54px;margin:0 auto 14px}
@media (max-width:600px){.logo-img{height:38px;max-width:130px}}

/* dải chạy chiết khấu */
.ticker{background:linear-gradient(90deg,var(--xanh-dam),var(--xanh),#5ec2ff,var(--xanh),var(--xanh-dam));background-size:300% 100%;animation:sang 8s linear infinite;color:#fff;overflow:hidden;white-space:nowrap;font-weight:800;position:sticky;top:64px;z-index:40}
.ticker-track{display:inline-flex;animation:chay 34s linear infinite;padding:9px 0}
.ticker span{padding:0 22px;font-family:var(--f-tieu-de);font-size:19px;letter-spacing:1px;text-transform:uppercase}
.ticker span::after{content:"✦";margin-left:44px;color:var(--chuoi)}
.ticker:hover .ticker-track{animation-play-state:paused}
@keyframes chay{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@keyframes sang{from{background-position:0 0}to{background-position:300% 0}}

/* hero */
.hero{position:relative;background:linear-gradient(160deg,#ffffff 0%,#eef8ff 55%,#d9efff 100%);overflow:hidden}
.hero-bg{position:absolute;inset:0;opacity:.5;background:
  radial-gradient(circle at 85% 20%,#bfe3ff 0,transparent 40%),
  radial-gradient(circle at 10% 90%,#e3f5c8 0,transparent 30%)}
.hero-inner{position:relative;display:grid;grid-template-columns:1.4fr 1fr;gap:48px;padding:72px 20px 64px;align-items:center}
.hero h1{font-size:clamp(42px,6vw,74px);text-transform:uppercase}
.hero h1 span{color:var(--xanh)}
.lead{font-size:18px;color:var(--chu-nhat);max-width:560px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0 36px}
.hero-facts{list-style:none;padding:0;margin:0;display:flex;gap:32px;flex-wrap:wrap;border-top:1px solid var(--xanh-vua);padding-top:22px}
.hero-facts b{display:block;font-family:var(--f-tieu-de);font-size:30px;color:var(--xanh-dam)}
.hero-facts span{font-size:13px;color:var(--chu-nhat)}

/* khung chiết khấu */
.promo{background:#fff;border:2px solid var(--xanh-vua);border-radius:20px;padding:30px;box-shadow:0 24px 50px #0b6fc21f}
.promo-tag{display:inline-block;background:var(--chuoi);color:#1f3305;font-weight:700;font-size:12px;padding:4px 10px;border-radius:999px;text-transform:uppercase;letter-spacing:1px}
.promo p{color:var(--chu-nhat)}
.promo-glow{position:relative;overflow:hidden;animation:nhay 2.8s ease-in-out infinite}
.promo-glow::before{content:"";position:absolute;inset:-40%;background:conic-gradient(from 0deg,transparent 0 72%,#2a9df41f 82%,transparent 92%);animation:quay 6s linear infinite;z-index:0}
.promo-glow>*{position:relative;z-index:1}
.promo-big{display:flex;flex-direction:column;line-height:.9;margin:18px 0 14px}
.promo-big span{font-family:var(--f-tieu-de);font-size:30px;color:var(--chu);letter-spacing:3px}
.promo-big b{font-family:var(--f-tieu-de);font-size:128px;font-weight:800;background:linear-gradient(180deg,#5ec2ff,var(--xanh) 50%,var(--xanh-dam));-webkit-background-clip:text;background-clip:text;color:transparent}
@keyframes nhay{0%,100%{box-shadow:0 24px 50px #0b6fc21f,0 0 0 0 #2a9df400}50%{box-shadow:0 24px 50px #0b6fc21f,0 0 30px 4px #2a9df444}}
@keyframes quay{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){.ticker,.ticker-track,.promo-glow,.promo-glow::before{animation:none}}

/* brands */
.brands{background:var(--xanh-nhat);color:var(--chu);border-top:1px solid var(--xanh-vua);border-bottom:1px solid var(--xanh-vua)}
.brands .wrap{display:flex;align-items:center;gap:24px;padding-top:16px;padding-bottom:16px;flex-wrap:wrap}
.brands p{margin:0;font-weight:600;font-size:14px;color:var(--chu-nhat)}
.brands ul{list-style:none;display:flex;gap:28px;padding:0;margin:0;flex-wrap:wrap}
.brands li{font-family:var(--f-tieu-de);font-weight:800;font-size:24px;letter-spacing:2px;color:var(--xanh-dam)}

/* section */
.sec{padding:84px 0}
.sec-dark{background:var(--xanh-nhat)}
.sec-soft{background:var(--nen-mem)}
.sec-head{max-width:680px;margin-bottom:32px}
.sec-head p:not(.eyebrow){color:var(--chu-nhat)}
.note{color:var(--chu-nhat);font-size:14px;margin-top:24px}
.note-dark{color:var(--chu-nhat);margin-top:32px}

/* sản phẩm */
.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}
.chip{border:1px solid var(--vien);background:#fff;color:var(--chu);border-radius:999px;padding:8px 16px;cursor:pointer;font:inherit;font-size:14px;font-weight:600}
.chip:hover{border-color:var(--xanh)}
.chip.on{background:var(--xanh-dam);color:#fff;border-color:var(--xanh-dam)}
.chip small{opacity:.65;font-weight:500;margin-left:4px}
.tools{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px}
.tools input,.tools select{font:inherit;padding:11px 14px;border:1px solid var(--vien);border-radius:10px;background:#fff;color:var(--chu)}
.tools input{flex:1;min-width:220px}
.tools input:focus,.tools select:focus{outline:2px solid var(--xanh);border-color:transparent}
.count{color:var(--chu-nhat);font-size:14px;margin:0 0 14px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:20px}
.card{border:1px solid var(--vien);border-radius:var(--bo);overflow:hidden;display:flex;flex-direction:column;background:#fff;transition:box-shadow .2s,transform .2s}
.card:hover{box-shadow:0 16px 40px #0b6fc21a;transform:translateY(-3px)}
.card-img{aspect-ratio:4/3;background:radial-gradient(circle at 50% 55%,#ffffff,#e3f1fc);display:grid;place-items:center;position:relative}
.card-img svg{width:58%}
.card-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;background:#fff}
.card-img.has-photo{background:#fff}
.card-tag{position:absolute;top:12px;left:12px;z-index:1;background:var(--xanh-dam);color:#fff;font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px;text-transform:uppercase}
.card-body{padding:18px;display:flex;flex-direction:column;gap:6px;flex:1}
.card-body h3{font-size:22px;margin:0}
.card-body p{margin:0;color:var(--chu-nhat);font-size:14px}
.card-price{font-weight:700;color:var(--xanh-dam);margin-top:auto !important;padding-top:10px}
.card-price small{display:block;font-weight:500;font-size:12px;color:var(--chu-nhat)}
.card-code{font-size:12px !important;color:#8a99a8 !important;font-family:ui-monospace,monospace}
.card .btn{margin-top:10px;background:var(--xanh-nhat);color:var(--xanh-dam);border-color:var(--xanh-vua);padding:10px 16px;font-size:14px}
.card .btn:hover{background:var(--xanh-dam);color:#fff}
.card .btn.added{background:var(--chuoi);color:#1f3305;border-color:var(--chuoi)}
.more{text-align:center;margin-top:28px}
.btn-vien-den{border-color:var(--xanh);color:var(--xanh-dam);background:#fff}
.btn-vien-den:hover{background:var(--xanh-dam);color:#fff}
.empty-result{grid-column:1/-1;text-align:center;color:var(--chu-nhat);padding:40px 0}

/* video TikTok */
.vgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:18px}
.vcard{background:#fff;border:1px solid var(--vien);border-radius:var(--bo);overflow:hidden;display:flex;flex-direction:column}
.vplay{aspect-ratio:9/16;max-height:420px;width:100%;border:0;cursor:pointer;position:relative;display:grid;place-items:center;color:#fff;font:inherit;text-align:left;
  background:linear-gradient(170deg,#7fd0ff,var(--xanh) 45%,var(--xanh-dam))}
.vplay::before{content:"";position:absolute;inset:0;opacity:.18;background:repeating-linear-gradient(135deg,transparent 0 14px,#fff 14px 16px)}
.vplay .tron{position:relative;width:64px;height:64px;border-radius:50%;background:#fff;display:grid;place-items:center;box-shadow:0 0 0 10px #ffffff40;transition:transform .2s}
.vplay:hover .tron{transform:scale(1.08)}
.vplay .tron::after{content:"";border-left:20px solid var(--xanh-dam);border-top:12px solid transparent;border-bottom:12px solid transparent;margin-left:5px}
.vplay .vt{position:absolute;left:14px;right:14px;bottom:14px;font-family:var(--f-tieu-de);font-size:22px;line-height:1.1;text-transform:uppercase;text-shadow:0 2px 10px #0b4a8066}
.vplay .vtag{position:absolute;top:12px;left:12px;font-size:11px;font-weight:700;background:#ffffff33;padding:3px 9px;border-radius:999px}
.vcard iframe{aspect-ratio:9/16;max-height:420px;width:100%;border:0;background:#000}
.vmeta{padding:12px 14px;display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:13px;color:var(--chu-nhat)}
.vmeta a{color:var(--xanh-dam);font-weight:700;text-decoration:none;white-space:nowrap}

/* dịch vụ */
.services{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.services article{background:#fff;border-radius:var(--bo);padding:24px;border:1px solid var(--xanh-vua)}
.services .ico{font-size:28px}
.services h3{margin-top:10px}
.services p{margin:0;color:var(--chu-nhat);font-size:15px}

/* câu chuyện */
.story{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px;align-items:center}
.story-video video{border-radius:20px;width:100%;max-height:640px;background:#000;object-fit:cover;box-shadow:0 30px 60px #0b6fc226}
.story blockquote{margin:24px 0;padding:16px 20px;border-left:4px solid var(--chuoi);background:var(--xanh-nhat);font-weight:600;border-radius:0 10px 10px 0}
.timeline{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.timeline li{border-top:3px solid var(--xanh);padding-top:10px;font-size:13px;color:var(--chu-nhat)}
.timeline b{display:block;font-family:var(--f-tieu-de);font-size:24px;color:var(--xanh-dam)}

/* bảo hành */
.warranty{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.warranty div{background:#fff;border-radius:var(--bo);padding:28px;border:1px solid var(--vien)}
.warranty b{font-family:var(--f-tieu-de);font-size:44px;color:var(--xanh-dam)}
.warranty p{margin:4px 0 0}

/* cỡ lốp */
.size-help{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.size-demo{background:var(--xanh-nhat);border:1px solid var(--xanh-vua);border-radius:20px;padding:32px}
.size-code{font-family:var(--f-tieu-de);font-size:64px;font-weight:800;letter-spacing:2px;margin-bottom:16px;color:var(--chu)}
.size-code span{cursor:default;transition:color .15s}
.size-code span.hl,.size-demo li.hl b{color:var(--xanh)}
.size-demo ol{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.size-demo li{color:var(--chu-nhat);font-size:15px;cursor:default}
.size-demo li b{color:var(--xanh-dam);display:inline-block;min-width:44px}

/* báo giá */
.quote{display:grid;grid-template-columns:1fr 1.1fr;gap:48px}
.quote>div>p{color:var(--chu-nhat)}
.cart{background:#fff;border-radius:var(--bo);padding:20px;margin-top:20px;border:1px solid var(--xanh-vua)}
.cart h3{font-size:20px}
.cart ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.cart li{display:flex;justify-content:space-between;gap:12px;align-items:center;font-size:15px}
.cart li.empty{color:var(--chu-nhat);font-size:14px}
.cart li button{background:none;border:1px solid var(--vien);color:var(--chu-nhat);border-radius:6px;cursor:pointer;font-size:12px;padding:2px 8px}
.form{background:#fff;color:var(--chu);border-radius:20px;padding:28px;display:grid;gap:14px;border:1px solid var(--xanh-vua);box-shadow:0 20px 40px #0b6fc214}
.form label{display:grid;gap:6px;font-weight:600;font-size:14px}
.form input,.form select,.form textarea{font:inherit;font-weight:400;padding:11px 14px;border:1px solid var(--vien);border-radius:10px;background:#fbfdff;width:100%;color:var(--chu)}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid var(--xanh);border-color:transparent}
.form .invalid{border-color:#d33;background:#fff5f5}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-msg{margin:0;font-size:14px;min-height:1em}
.form-msg.ok{color:#2f7a12}
.form-msg.err{color:#c62828}

/* liên hệ */
.contact{display:grid;grid-template-columns:1fr 1.2fr;gap:48px;align-items:center}
.contact-list{list-style:none;padding:0;margin:0;display:grid;gap:12px;font-size:17px}
.contact-list a{color:var(--xanh-dam)}
.map iframe{width:100%;height:340px;border:0;border-radius:20px}

.foot{background:var(--nen-mem);border-top:1px solid var(--vien);color:var(--chu-nhat);font-size:13px;padding:28px 0 90px;text-align:center}

/* nút nổi trên điện thoại */
.sticky-cta{display:none}
.toast{position:fixed;left:50%;bottom:90px;transform:translate(-50%,20px);background:var(--chu);color:#fff;padding:10px 18px;border-radius:999px;font-size:14px;opacity:0;pointer-events:none;transition:.25s;z-index:99}
.toast.show{opacity:1;transform:translate(-50%,0)}

@media (max-width:900px){
  .menu{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;border-bottom:1px solid var(--vien);flex-direction:column;padding:12px 20px 20px;gap:14px}
  .menu.open{display:flex}
  .burger{display:flex}
  .nav-inner{gap:12px}
  .nav-inner .btn-sm{margin-left:auto}
  .hero-inner,.story,.size-help,.quote,.contact{grid-template-columns:1fr}
  .hero-inner{padding:48px 16px}
  .services{grid-template-columns:1fr 1fr}
  .story-video{max-width:360px}
  .sticky-cta{display:grid;grid-template-columns:1fr 1fr 1.3fr;position:fixed;bottom:0;left:0;right:0;z-index:60;background:#fff;border-top:1px solid var(--vien);box-shadow:0 -6px 20px #0b6fc214}
  .sticky-cta a{color:var(--xanh-dam);text-decoration:none;text-align:center;padding:14px 4px;font-weight:700;font-size:15px}
  .sticky-cta a.cam{background:var(--xanh-dam);color:#fff}
}
@media (max-width:600px){
  .wrap{padding:0 16px}
  .sec{padding:60px 0}
  .services,.warranty,.row2{grid-template-columns:1fr}
  .timeline{grid-template-columns:1fr 1fr}
  .promo-big b{font-size:100px}
  .size-code{font-size:48px}
  .brands li{font-size:20px}
}

/* ==========================================================
   LỚP "SÔI ĐỘNG": xanh trời bão hoà, mảng màu lớn, điểm xanh nõn chuối
   ========================================================== */
:root{ --xanh:#1597ff; --xanh-dam:#0a63d6; --tuoi1:#00b4ff; --tuoi2:#0a63d6; }

/* đầu trang: mảng xanh trời rực, chữ trắng */
.hero{background:linear-gradient(125deg,#0a63d6 0%,#1597ff 45%,#00c6ff 100%);color:#fff}
.hero-bg{opacity:1;background:
  radial-gradient(circle at 88% 12%,#ffffff33 0,transparent 28%),
  radial-gradient(circle at 70% 95%,#a5d13f40 0,transparent 30%),
  radial-gradient(circle at 5% 10%,#ffffff22 0,transparent 25%)}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:60px;background:#fff;clip-path:ellipse(75% 100% at 50% 100%)}
.hero h1,.hero .eyebrow{color:#fff}
.hero h1 span{color:#d6f56b;text-shadow:0 4px 24px #0a63d680}
.hero .lead{color:#e6f4ff}
.hero .btn-cam{background:#fff;color:var(--xanh-dam);box-shadow:0 10px 30px #00305f40}
.hero .btn-cam:hover{background:#f0f8ff}
.hero .btn-vien{background:transparent;border-color:#ffffffaa;color:#fff}
.hero .btn-vien:hover{background:#ffffff1f;border-color:#fff}
.hero-facts{border-top-color:#ffffff40}
.hero-facts b{color:#fff}
.hero-facts span{color:#d9eeff}
.hero-inner{padding-bottom:110px}
.promo{border:0;box-shadow:0 30px 60px #00305f4d}
.promo-big b{background-image:linear-gradient(180deg,#00c6ff,#1597ff 45%,#0a63d6);-webkit-background-clip:text;background-clip:text;color:transparent}

/* dải chữ chạy: xanh đậm, chữ trắng, điểm nõn chuối */
.ticker{background:linear-gradient(90deg,#063f94,#0a63d6,#063f94);background-size:200% 100%}
.ticker span:nth-child(odd){color:#d6f56b}

/* dải tên hãng */
.brands{background:linear-gradient(90deg,#0a63d6,#1597ff);border:0}
.brands p{color:#d9eeff}
.brands li{color:#fff}

/* tiêu đề mục: thanh màu bên dưới */
.sec-head h2::after{content:"";display:block;width:72px;height:6px;border-radius:6px;margin-top:14px;background:linear-gradient(90deg,var(--xanh) 0 65%,var(--chuoi) 65%)}

/* thẻ sản phẩm */
.chip.on{background:linear-gradient(90deg,#0a63d6,#1597ff);border-color:transparent;box-shadow:0 6px 16px #1597ff44}
.card-tag{background:linear-gradient(90deg,#0a63d6,#1597ff)}
.card:hover{box-shadow:0 18px 40px #1597ff33;border-color:#9fd2ff}
.card-price{font-size:19px}
.card .btn{background:linear-gradient(90deg,#0a63d6,#1597ff);color:#fff;border:0}
.card .btn:hover{filter:brightness(1.08)}

/* dịch vụ: nền xanh nhạt có hoa văn, biểu tượng trong vòng tròn màu */
#dich-vu{background:linear-gradient(180deg,#e6f4ff,#ffffff)}
.services article{border:0;box-shadow:0 10px 30px #0a63d614;transition:transform .2s,box-shadow .2s}
.services article:hover{transform:translateY(-4px);box-shadow:0 18px 40px #1597ff33}
.services .ico{display:grid;place-items:center;width:56px;height:56px;border-radius:16px;font-size:26px;background:linear-gradient(135deg,#00c6ff,#0a63d6);box-shadow:0 8px 20px #1597ff55}
.services article:nth-child(3n+2) .ico{background:linear-gradient(135deg,#c8ec5a,#7fb51f);box-shadow:0 8px 20px #a5d13f55}

/* video */
#video{background:linear-gradient(180deg,#ffffff,#eaf6ff)}
.vplay{background:linear-gradient(160deg,#00c6ff,#1597ff 45%,#0a63d6)}

/* dòng thời gian */
.timeline li{border-top:4px solid var(--xanh)}
.timeline li:nth-child(even){border-top-color:var(--chuoi)}

/* cỡ lốp */
.size-demo{background:linear-gradient(135deg,#0a63d6,#1597ff);border:0;box-shadow:0 20px 40px #1597ff40}
.size-code,.size-demo li b{color:#fff}
.size-demo li{color:#d9eeff}
.size-code span.hl,.size-demo li.hl b{color:#d6f56b}

/* báo giá: mảng xanh rực, form trắng nổi */
#bao-gia{background:linear-gradient(125deg,#0a63d6,#1597ff 55%,#00c6ff)}
#bao-gia h2,#bao-gia .eyebrow{color:#fff}
#bao-gia .sec-head h2::after,#bao-gia h2::after{background:linear-gradient(90deg,#fff 0 65%,var(--chuoi) 65%)}
.quote>div>p{color:#e6f4ff}
.cart{background:#ffffff1f;border-color:#ffffff40}
.cart h3,.cart li{color:#fff}
.cart li.empty{color:#d9eeff}
.cart li button{color:#fff;border-color:#ffffff66}
.form{border:0;box-shadow:0 30px 60px #00305f40}
.form .btn-cam{background:linear-gradient(90deg,#0a63d6,#1597ff)}

/* bảo hành */
.warranty div{border:0;box-shadow:0 10px 30px #0a63d614;border-top:5px solid var(--xanh)}
.warranty div:nth-child(2){border-top-color:var(--chuoi)}

/* chân trang: xanh đậm */
.foot{background:linear-gradient(90deg,#063f94,#0a63d6);color:#cfe6ff;border:0}
.foot-logo{background:#fff;border-radius:12px;padding:6px 12px}

/* nút "Hỏi giá" trên thanh menu */
.topnav .btn-cam{background:linear-gradient(90deg,#0a63d6,#1597ff)}
.sticky-cta a.cam{background:linear-gradient(90deg,#0a63d6,#1597ff)}
.hero .promo .btn-cam{background:linear-gradient(90deg,#0a63d6,#1597ff);color:#fff;box-shadow:0 10px 24px #1597ff55}