/* SEOtukhoa Studio · giao diện website */
:root {
  color-scheme: light;
  --navy: #0b1533; --navy2: #15244f; --navy3: #1f3370; --blue: #2f5bd3; --blue2: #4c7dff;
  --ink: #121a33; --muted: #5b6580; --line: #e3e7f0; --bg: #f3f5fa; --card: #fff;
  --gold: #ffc23d; --gold2: #ff9f1c; --gold-soft: #fff5da;
  --red: #e5402f; --red-soft: #fdecea; --green: #12a061; --green-soft: #e2f6eb; --blue-soft: #e8efff;
  --zalo: #0068ff;
  --radius: 18px; --shadow: 0 1px 2px rgba(11,21,51,.05), 0 12px 32px rgba(11,21,51,.08);
  --f: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font: 16px/1.65 var(--f); color: var(--ink); background: var(--bg); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue); }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
h1, h2, h3 { margin: 0; letter-spacing: -.018em; }
h2 { font-size: 38px; font-weight: 900; line-height: 1.18; }
h3 { font-size: 18px; font-weight: 800; line-height: 1.3; }
p { margin: 0; }
/* Dòng câu hỏi trên tiêu đề: không gạch, cỡ chữ bằng tiêu đề bên dưới */
.eyebrow { display: flex; align-items: center; font-size: 38px; font-weight: 900; line-height: 1.18; letter-spacing: -.01em; text-transform: uppercase; color: var(--red); margin-bottom: 6px; }
.cta-band .eyebrow { font-size: 36px; }
.center { text-align: center; }
.center .eyebrow { justify-content: center; }
.lead { color: var(--muted); font-size: 18px; margin-top: 12px; max-width: 760px; }
.center .lead { margin-left: auto; margin-right: auto; }
.hl { background: linear-gradient(transparent 62%, rgba(255,194,61,.45) 62%); padding: 0 2px; }
section { padding: 88px 0; scroll-margin-top: 70px; }
.alt { background: #fff; }
.head { margin-bottom: 40px; }

/* ---------- Nút ---------- */
.btn { position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 10px; height: 54px; padding: 0 26px; border-radius: 14px; font: 800 16.5px var(--f); text-decoration: none; cursor: pointer; border: 0; white-space: nowrap; transition: transform .15s ease, box-shadow .15s ease, filter .15s; overflow: hidden; }
.btn:hover { transform: translateY(-2px); }
.btn svg { width: 20px; height: 20px; flex: none; }
.btn-gold { background: linear-gradient(135deg, #ffd36b, var(--gold) 40%, var(--gold2)); color: #2a1a00; box-shadow: 0 12px 28px rgba(255,159,28,.4), inset 0 1px 0 rgba(255,255,255,.6); }
.btn-gold::after { content: ""; position: absolute; top: 0; left: -60%; width: 40%; height: 100%; background: linear-gradient(100deg, transparent, rgba(255,255,255,.65), transparent); transform: skewX(-20deg); animation: shine 3.6s ease-in-out infinite; }
@keyframes shine { 0%, 55% { left: -60%; } 75%, 100% { left: 130%; } }
.btn-ghost { background: rgba(255,255,255,.08); color: #fff; border: 1px solid rgba(255,255,255,.3); }
.btn-ghost:hover { background: rgba(255,255,255,.15); }
.btn-zalo { background: var(--zalo); color: #fff; box-shadow: 0 12px 26px rgba(0,104,255,.35); }
.btn-navy { background: var(--navy); color: #fff; box-shadow: 0 10px 24px rgba(11,21,51,.25); }
.btn-sm { height: 42px; padding: 0 18px; font-size: 14.5px; border-radius: 12px; }

/* ---------- Thanh trên ---------- */
.topbar { position: sticky; top: 0; z-index: 40; background: rgba(11,21,51,.88); backdrop-filter: saturate(1.4) blur(12px); -webkit-backdrop-filter: saturate(1.4) blur(12px); border-bottom: 1px solid rgba(255,255,255,.08); }
.topbar .wrap { display: flex; align-items: center; gap: 24px; height: 68px; }
.logo { display: flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; font-weight: 800; font-size: 18px; }
.logo .mark { width: 38px; height: 38px; flex: none; filter: drop-shadow(0 6px 14px rgba(58,95,208,.45)); }
.logo b { color: var(--gold); font-weight: 900; }
/* Tên thương hiệu luôn đi liền một dòng */
.nw, .logo span { white-space: nowrap; }
.logo span b, footer .logo b { display: inline; margin: 0; color: var(--gold); }
.menu { display: flex; gap: 24px; margin-left: auto; }
.menu a { color: #cfd8f6; text-decoration: none; font-size: 14.5px; font-weight: 600; }
.menu a:hover, .menu a.on { color: #fff; }
.topbar .btn { margin-left: 4px; }

/* ---------- Đầu trang ---------- */
.hero { position: relative; overflow: hidden; color: #fff; padding: 76px 0 92px; background: var(--navy); isolation: isolate; }
.hero .blob { position: absolute; border-radius: 50%; filter: blur(70px); opacity: .55; z-index: -1; animation: drift 16s ease-in-out infinite alternate; }
.hero .b1 { width: 520px; height: 520px; background: #2c4aa8; top: -160px; right: -80px; }
.hero .b2 { width: 420px; height: 420px; background: #1b6fd6; bottom: -200px; left: -120px; animation-delay: -6s; }
.hero .b3 { width: 260px; height: 260px; background: #ff9f1c; top: 38%; right: 30%; opacity: .16; animation-delay: -10s; }
@keyframes drift { from { transform: translate(0,0) scale(1); } to { transform: translate(40px,-30px) scale(1.08); } }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -1; opacity: .55; pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 46px 46px; -webkit-mask-image: linear-gradient(180deg, #000 25%, transparent 95%); mask-image: linear-gradient(180deg, #000 25%, transparent 95%); }
.hero .wrap { display: grid; grid-template-columns: 1.02fr 1fr; gap: 54px; align-items: center; }
.tag { display: inline-flex; align-items: center; gap: 8px; padding: 7px 15px; border-radius: 99px; background: rgba(255,194,61,.13); border: 1px solid rgba(255,194,61,.38); color: var(--gold); font-size: 13px; font-weight: 800; letter-spacing: .04em; text-transform: uppercase; }
.tag svg { width: 15px; height: 15px; }
.tag .live { width: 8px; height: 8px; border-radius: 50%; background: #2fd47a; box-shadow: 0 0 0 0 rgba(47,212,122,.6); animation: pulse 2s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(47,212,122,.6); } 70% { box-shadow: 0 0 0 10px rgba(47,212,122,0); } 100% { box-shadow: 0 0 0 0 rgba(47,212,122,0); } }
.hero h1 { font-size: 47px; font-weight: 900; line-height: 1.1; margin: 20px 0 18px; letter-spacing: -.025em; }
.hero h1 em { font-style: normal; background: linear-gradient(90deg, #ffd36b, var(--gold2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .sub { color: #cfd8f6; font-size: 19px; max-width: 580px; }
.hero .sub b { color: #fff; }
.ctas { display: flex; gap: 12px; margin: 30px 0 14px; flex-wrap: wrap; }
.trust { display: flex; flex-wrap: wrap; gap: 8px 18px; color: #a9b8e6; font-size: 14.5px; }
.trust span { display: inline-flex; align-items: center; gap: 6px; }
.trust svg { width: 16px; height: 16px; color: #2fd47a; }

.mock { position: relative; }
.browser { border-radius: 16px; overflow: hidden; background: #fff; box-shadow: 0 40px 80px rgba(0,0,0,.5), 0 0 0 1px rgba(255,255,255,.12); transform: perspective(1400px) rotateY(-6deg) rotateX(2deg); transition: transform .5s ease; }
.mock:hover .browser { transform: perspective(1400px) rotateY(0) rotateX(0); }
.browser .bar { height: 32px; background: #e9edf5; display: flex; align-items: center; gap: 6px; padding: 0 12px; }
.browser .bar i { width: 10px; height: 10px; border-radius: 50%; background: #c9d1e1; }
.browser .bar i:nth-child(1) { background: #ff6b5f; } .browser .bar i:nth-child(2) { background: #ffc23d; } .browser .bar i:nth-child(3) { background: #2fcc71; }
.browser .bar span { margin-left: 10px; font-size: 11.5px; color: #6b7590; }
.float { position: absolute; background: #fff; color: var(--ink); border-radius: 14px; padding: 12px 14px; box-shadow: 0 18px 40px rgba(0,0,0,.35); font-size: 13.5px; animation: bob 5s ease-in-out infinite; }
.float.f1 { left: -34px; bottom: 34px; width: 300px; }
.float.f2 { right: -18px; top: -22px; display: flex; align-items: center; gap: 10px; font-weight: 700; animation-delay: -2.5s; }
.float .ico { width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center; flex: none; }
.float .ico svg { width: 17px; height: 17px; }
.float.f2 .ico { background: var(--green-soft); color: var(--green); }
.float .k svg { width: 14px; height: 14px; color: var(--blue); flex: none; }
.float .k { font-size: 11.5px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); display: flex; align-items: center; gap: 6px; }
.float .k b { color: var(--green); }
.float .old { color: #8a93a8; text-decoration: line-through; margin-top: 6px; }
.float .new { font-weight: 700; min-height: 42px; }
.float .new::after { content: "▍"; color: var(--blue); animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
@keyframes bob { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
.demo-note { margin-top: 14px; color: #8fa0d6; font-size: 12.5px; text-align: right; }

/* ---------- Dải tích hợp ---------- */
/* 9 nỗi đau trong phần đầu trang */
.hero .wrap.pains-wrap { display: block; margin-top: 46px; }
.pains-box { background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.12); border-radius: 22px; padding: 26px; backdrop-filter: blur(4px); }
.pains-head { display: flex; align-items: baseline; justify-content: space-between; gap: 10px 24px; flex-wrap: wrap; margin-bottom: 18px; }
.pains-head h2 { font-size: 26px; color: #fff; }
.pains-head p { color: #aebce6; font-size: 15px; max-width: 560px; margin: 0; }
.pains-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.pain-item { display: flex; gap: 12px; align-items: flex-start; padding: 14px; border-radius: 14px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.08); }
.pain-item .px { flex: none; width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; background: rgba(229,64,47,.18); color: #ff7a6b; }
.pain-item .px svg { width: 19px; height: 19px; }
.pain-item b { display: block; color: #fff; font-size: 15.5px; line-height: 1.3; }
.pain-item small { display: block; color: #aebce6; font-size: 13.5px; margin-top: 3px; line-height: 1.4; }
.integr { background: #fff; border-bottom: 1px solid var(--line); padding: 30px 0 34px; }
.integr-head { text-align: center; color: var(--muted); font-weight: 800; font-size: 14px; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 18px; }
.brands { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; max-width: 1000px; margin: 0 auto; }
.brand-card { display: flex; align-items: center; gap: 12px; padding: 14px; border: 1px solid var(--line); border-radius: 16px; background: #fff; box-shadow: 0 4px 14px rgba(11,21,51,.05); transition: transform .2s, box-shadow .2s; }
.brand-card:hover { transform: translateY(-3px); box-shadow: 0 14px 28px rgba(11,21,51,.1); }
.brand-card .bi { flex: none; width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center; background: var(--c); box-shadow: 0 8px 18px color-mix(in srgb, var(--c) 35%, transparent); }
.brand-card .bi svg { width: 26px; height: 26px; fill: #fff; }
.brand-card .bt { min-width: 0; display: flex; flex-direction: column; line-height: 1.25; }
.brand-card b { font-size: 15px; color: var(--navy); font-weight: 800; }
.brand-card small { font-size: 12.5px; color: var(--muted); margin-top: 3px; }

/* ---------- Thẻ ---------- */
.grid { display: grid; gap: 20px; }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); transition: transform .2s ease, box-shadow .2s ease; }
.card:hover { transform: translateY(-4px); box-shadow: 0 2px 4px rgba(11,21,51,.05), 0 22px 44px rgba(11,21,51,.12); }
.alt .card { box-shadow: none; background: var(--bg); border-color: transparent; }
.alt .card:hover { background: #fff; box-shadow: var(--shadow); }
.card p { color: var(--muted); font-size: 15.5px; margin-top: 8px; }
.icon { position: relative; width: 58px; height: 58px; border-radius: 16px; display: grid; place-items: center; margin-bottom: 18px; color: var(--gold);
  background: linear-gradient(150deg, #2b4ba6 0%, #15244f 55%, #0b1533 100%); box-shadow: 0 10px 20px rgba(11,21,51,.22), inset 0 1px 0 rgba(255,255,255,.18); }
.icon::after { content: ""; position: absolute; inset: 0; border-radius: inherit; background: radial-gradient(60% 50% at 30% 20%, rgba(255,255,255,.2), transparent 70%); }
.icon svg { width: 30px; height: 30px; position: relative; z-index: 1; }
.icon.gold { color: var(--navy); background: linear-gradient(150deg, #ffe08a 0%, #ffc23d 50%, #ff9f1c 100%); box-shadow: 0 10px 22px rgba(255,159,28,.28), inset 0 1px 0 rgba(255,255,255,.55); }
.icon.red { color: #fff; background: linear-gradient(150deg, #ff7a6b, #e5402f); box-shadow: 0 10px 22px rgba(229,64,47,.25); }

/* Nỗi đau */
.pain .card { border-top: 4px solid #ffb4a9; }
.pain .card h3 { margin-bottom: 2px; }
.bridge { margin-top: 34px; display: flex; align-items: center; gap: 18px; padding: 22px 26px; border-radius: 18px; background: linear-gradient(120deg, var(--navy), var(--navy3)); color: #fff; }
.bridge .icon { margin: 0; flex: none; }
.bridge p { color: #cfd8f6; margin-top: 4px; }
.bridge b { font-size: 19px; }

/* Tính năng xen kẽ */
.rows { display: grid; gap: 80px; }
.row { display: grid; grid-template-columns: 1fr 1.08fr; gap: 56px; align-items: center; }
.row.rev .txt { order: 2; }
.row .txt h3 { font-size: 28px; font-weight: 900; line-height: 1.25; margin: 6px 0 12px; }
.row .txt > p { color: var(--muted); font-size: 17px; }
.chipnum { display: block; font-size: 28px; font-weight: 900; line-height: 1.25; letter-spacing: -.01em; background: linear-gradient(90deg, var(--gold2), var(--red)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.ticks { list-style: none; padding: 0; margin: 18px 0 0; }
.ticks li { position: relative; padding-left: 32px; margin: 11px 0; color: #34405e; font-size: 16px; }
.ticks li::before { content: ""; position: absolute; left: 0; top: 2px; width: 22px; height: 22px; border-radius: 50%; background: var(--green-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2312a061' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 12.5 4 4 8-9'/%3E%3C/svg%3E") center/14px no-repeat; }
.shot { border-radius: 16px; overflow: hidden; border: 1px solid var(--line); background: #fff; box-shadow: 0 30px 60px rgba(11,21,51,.18); }
.shot-wrap { position: relative; }
.shot-wrap::before { content: ""; position: absolute; inset: -18px -18px 18px 18px; border-radius: 22px; background: linear-gradient(135deg, rgba(47,91,211,.16), rgba(255,194,61,.22)); z-index: 0; }
.row.rev .shot-wrap::before { inset: -18px 18px 18px -18px; }
.shot-wrap .shot { position: relative; z-index: 1; }

/* Nhận được gì */
.deliver .card { text-align: left; }
.deliver .big { font-size: 40px; font-weight: 900; line-height: 1; letter-spacing: -.02em; background: linear-gradient(90deg, var(--blue), var(--navy3)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.deliver .big small { font-size: 16px; font-weight: 800; }
.deliver h3 { margin-top: 10px; }
.note { color: var(--muted); font-size: 13.5px; margin-top: 16px; }

/* An toàn (nền tối) */
.dark { background: var(--navy); color: #fff; position: relative; overflow: hidden; }
.dark::before { content: ""; position: absolute; width: 600px; height: 600px; right: -200px; top: -200px; border-radius: 50%; background: #2c4aa8; filter: blur(90px); opacity: .35; }
.dark .wrap { position: relative; }
.dark .lead { color: #cfd8f6; }
.dark .eyebrow { color: var(--gold); }
.dark .card { background: rgba(255,255,255,.05); border-color: rgba(255,255,255,.12); box-shadow: none; }
.dark .card:hover { background: rgba(255,255,255,.08); }
.dark .card p { color: #b9c5ea; }
.dark h3 { color: #fff; }

/* So sánh */
.cmp { display: grid; grid-template-columns: 1fr 1fr 1.12fr; gap: 20px; align-items: stretch; }
.cmp .card h3 { margin-bottom: 14px; font-size: 19px; }
.cmp ul { list-style: none; padding: 0; margin: 0; }
.cmp li { position: relative; padding-left: 28px; margin: 11px 0; font-size: 15.5px; color: #34405e; }
.cmp .bad li::before { content: "✕"; position: absolute; left: 2px; color: var(--red); font-weight: 900; }
.cmp .bad h3 { color: var(--red); }
.cmp .good { position: relative; background: linear-gradient(160deg, var(--navy3), var(--navy)); color: #fff; border: 2px solid var(--gold); transform: translateY(-10px); box-shadow: 0 30px 60px rgba(11,21,51,.3); }
.cmp .good:hover { transform: translateY(-14px); }
.cmp .good li { color: #e3e9fb; }
.cmp .good li::before { content: "✓"; position: absolute; left: 2px; color: var(--gold); font-weight: 900; }
.cmp .good h3 { color: var(--gold); }
.cmp .ribbon { position: absolute; top: -14px; right: 18px; background: linear-gradient(135deg, var(--gold), var(--gold2)); color: #2a1a00; font-size: 12px; font-weight: 900; letter-spacing: .05em; text-transform: uppercase; padding: 5px 12px; border-radius: 99px; box-shadow: 0 8px 18px rgba(255,159,28,.35); }

/* Phù hợp */
.chips { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.chip { display: inline-flex; align-items: center; gap: 8px; padding: 10px 18px; border-radius: 99px; background: #fff; border: 1px solid var(--line); font-weight: 700; font-size: 15px; box-shadow: 0 2px 6px rgba(11,21,51,.04); }
.chip svg { width: 18px; height: 18px; color: var(--green); }

/* Bước */
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; position: relative; }
.step { position: relative; z-index: 1; text-align: center; padding: 0 10px; }
.step .num { font-size: 22px; font-weight: 900; line-height: 1.3; margin-bottom: 4px; background: linear-gradient(90deg, var(--gold2), var(--red)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.step h3 { font-size: 22px; }
.step p { color: var(--muted); margin-top: 8px; }

/* Khung kêu gọi lớn */
.cta-band { position: relative; overflow: hidden; border-radius: 28px; padding: 54px 48px; color: #fff; background: linear-gradient(120deg, #0b1533 0%, #1f3370 55%, #2f5bd3 100%); display: grid; grid-template-columns: 1.3fr 1fr; gap: 30px; align-items: center; box-shadow: 0 40px 80px rgba(11,21,51,.25); }
.cta-band::after { content: ""; position: absolute; width: 380px; height: 380px; border-radius: 50%; right: -120px; bottom: -160px; background: #ffc23d; opacity: .18; filter: blur(30px); }
.cta-band h2 { font-size: 36px; }
.cta-band p { color: #cfd8f6; font-size: 17.5px; margin-top: 12px; }
.cta-band .acts { display: flex; flex-direction: column; gap: 12px; position: relative; z-index: 1; }
.cta-band .acts .btn { width: 100%; }
.cta-band .contact { color: #cfd8f6; font-size: 15px; text-align: center; }
.ct { color: var(--gold); font-weight: 800; text-decoration: none; white-space: nowrap; }
.ct:hover { text-decoration: underline; }

/* Hỏi đáp */
details { background: #fff; border: 1px solid var(--line); border-radius: 16px; margin-bottom: 12px; transition: box-shadow .2s; }
details[open] { box-shadow: var(--shadow); }
summary { cursor: pointer; list-style: none; padding: 19px 22px; font-weight: 800; font-size: 16.5px; display: flex; align-items: center; gap: 12px; }
summary::-webkit-details-marker { display: none; }
summary .n { flex: none; font-size: inherit; font-weight: 900; background: linear-gradient(90deg, var(--gold2), var(--red)); -webkit-background-clip: text; background-clip: text; color: transparent; }
summary::after { content: "+"; margin-left: auto; font-size: 24px; font-weight: 600; color: var(--muted); transition: transform .2s; }
details[open] summary::after { transform: rotate(45deg); }
.body { padding: 0 22px 20px 22px; color: #34405e; font-size: 15.5px; }
.body.indent { padding-left: 66px; }
.body ol, .body ul { margin: 6px 0 10px; padding-left: 20px; }
.body li { margin: 7px 0; }
.tip { margin-top: 12px; padding: 11px 14px; border-radius: 12px; background: var(--blue-soft); color: #1d3f8f; font-size: 14.5px; }
.warn { margin-top: 12px; padding: 11px 14px; border-radius: 12px; background: var(--gold-soft); color: #6b4a00; font-size: 14.5px; }
.kbd { display: inline-block; padding: 0 7px; border-radius: 6px; background: #eef1f8; border: 1px solid var(--line); font-size: 14px; font-weight: 700; color: var(--navy); }

/* Bảng */
table { width: 100%; border-collapse: collapse; background: #fff; border-radius: 14px; overflow: hidden; border: 1px solid var(--line); font-size: 15px; }
th { text-align: left; background: var(--navy); color: #fff; font-weight: 700; padding: 12px 16px; font-size: 14px; }
td { padding: 12px 16px; border-top: 1px solid var(--line); vertical-align: top; }
td:first-child { font-weight: 700; width: 34%; }
.pill { display: inline-block; padding: 2px 10px; border-radius: 99px; font-size: 13px; font-weight: 700; white-space: nowrap; }
.p-good { background: var(--green-soft); color: #0b7a47; } .p-warn { background: var(--gold-soft); color: #8a5a00; }
.p-bad { background: var(--red-soft); color: #b42318; } .p-info { background: var(--blue-soft); color: #1d4fb8; } .p-idle { background: #eef0f4; color: #4b5568; }

/* Trang hướng dẫn */
.page-hero { background: var(--navy); color: #fff; padding: 56px 0 60px; position: relative; overflow: hidden; }
.page-hero::before { content: ""; position: absolute; width: 520px; height: 520px; right: -140px; top: -220px; border-radius: 50%; background: #2c4aa8; filter: blur(80px); opacity: .5; }
.page-hero .wrap { position: relative; }
.page-hero h1 { font-size: 44px; font-weight: 900; line-height: 1.15; margin: 12px 0 12px; }
.page-hero p { color: #cfd8f6; font-size: 18px; max-width: 720px; }
.crumbs { font-size: 14px; color: #9fb0e0; }
.crumbs a { color: #cfd8f6; text-decoration: none; }
.guide { display: grid; grid-template-columns: 260px 1fr; gap: 40px; align-items: start; }
.toc { position: sticky; top: 90px; background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 18px; }
.toc b { display: block; font-size: 13px; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.toc a { display: block; padding: 7px 10px; border-radius: 9px; color: var(--ink); text-decoration: none; font-weight: 600; font-size: 14.5px; }
.toc a:hover { background: var(--bg); }
.toc a.sub { padding-left: 22px; font-weight: 500; color: var(--muted); font-size: 14px; }
.part { scroll-margin-top: 90px; margin-bottom: 46px; }
.part > h2 { font-size: 28px; margin-bottom: 8px; }
.part > p { color: var(--muted); margin-bottom: 18px; }

/* Chân trang */
footer { background: var(--navy); color: #aebce6; padding: 54px 0 110px; font-size: 14.5px; }
footer .cols { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 30px; }
footer b { color: #fff; display: block; margin-bottom: 10px; }
footer a { color: #cfd8f6; text-decoration: none; }
footer a:hover { color: #fff; }
footer p { margin-top: 10px; max-width: 520px; }
footer .links a { display: block; margin: 6px 0; }
footer .copy { border-top: 1px solid rgba(255,255,255,.1); margin-top: 34px; padding-top: 20px; font-size: 13px; color: #8090c0; }

/* Nút Zalo nổi + thanh liên hệ trên điện thoại */
.zalo-float { position: fixed; right: 18px; bottom: 18px; z-index: 50; display: flex; align-items: center; gap: 10px; padding: 10px 18px 10px 10px; border-radius: 99px; background: var(--zalo); color: #fff; font-weight: 800; font-size: 15px; text-decoration: none; box-shadow: 0 14px 30px rgba(0,104,255,.45); }
.zalo-float i { width: 38px; height: 38px; border-radius: 50%; background: #fff; color: var(--zalo); display: grid; place-items: center; font-style: normal; font-weight: 900; font-size: 12px; }
.zalo-float::before { content: ""; position: absolute; inset: 0; border-radius: inherit; box-shadow: 0 0 0 0 rgba(0,104,255,.5); animation: ring 2.4s infinite; }
@keyframes ring { 0% { box-shadow: 0 0 0 0 rgba(0,104,255,.5); } 70% { box-shadow: 0 0 0 16px rgba(0,104,255,0); } 100% { box-shadow: 0 0 0 0 rgba(0,104,255,0); } }
.mbar { display: none; }

/* Hiện dần khi cuộn */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  .browser { transform: none; }
}

/* Vì sao phải lên top */
.why { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 40px; align-items: center; }
.serp { background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 20px; box-shadow: 0 30px 60px rgba(11,21,51,.14); }
.sbox { display: flex; align-items: center; gap: 10px; padding: 12px 18px; border-radius: 99px; border: 1px solid #dfe1e5; box-shadow: 0 1px 6px rgba(32,33,36,.18); font-size: 16px; color: #202124; margin-bottom: 16px; }
.sbox svg { width: 20px; height: 20px; color: #4285f4; flex: none; }
.tier { display: flex; align-items: center; gap: 14px; padding: 14px 16px; border-radius: 14px; margin-top: 10px; font-size: 15px; color: #34405e; }
.tier .rk { flex: none; width: 96px; text-align: center; padding: 7px 0; border-radius: 10px; font-weight: 900; font-size: 14px; }
.tier b { color: var(--navy); font-size: 17px; }
.tier.t1 { background: linear-gradient(90deg, var(--gold-soft), #fff); border: 2px solid var(--gold); }
.tier.t1 .rk { background: linear-gradient(135deg, #ffd36b, var(--gold2)); color: #2a1a00; }
.tier.t3 { background: #fff8e6; border: 1px solid #ffe2a1; margin-right: 4%; }
.tier.t3 .rk { background: var(--gold); color: #2a1a00; }
.tier.t10 { background: #eef2fb; border: 1px solid var(--line); margin-right: 8%; }
.tier.t10 .rk { background: var(--navy3); color: #fff; }
.tier.tx { background: #f4f5f8; border: 1px dashed #c9cfdc; margin-right: 12%; color: #7a8399; }
.tier.tx .rk { background: #c9cfdc; color: #4b5568; }
.tier.tx b { color: var(--red); }
.whytxt h3 { font-size: 26px; line-height: 1.25; }
.whytxt h3 em { font-style: normal; color: var(--red); }
.whytxt > p { color: var(--muted); font-size: 17px; margin-top: 12px; }

/* Cam kết 30/90/180 ngày */
.milestones { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; align-items: stretch; }
.ms { position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.ms-top { display: flex; align-items: center; gap: 14px; margin-bottom: 10px; }
.ms-top .icon { margin: 0; flex: none; }
.ms-when { font-size: 22px; font-weight: 900; line-height: 1.2; background: linear-gradient(90deg, var(--gold2), var(--red)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.ms-goal { font-size: 30px; font-weight: 900; line-height: 1.1; color: var(--navy); letter-spacing: -.01em; }
.ms-hl .ms-goal { color: #fff; }
.ms h3 { font-size: 17px; margin-top: 4px; padding: 10px 12px; border-radius: 12px; background: var(--gold-soft); color: #6b4a00; }
.ms-hl h3 { background: rgba(255,194,61,.16); color: var(--gold); }
.ms ul { list-style: none; padding: 0; margin: 12px 0 0; }
.ms li { position: relative; padding-left: 28px; margin: 10px 0; font-size: 15.5px; color: #34405e; }
.ms li::before { content: "✓"; position: absolute; left: 4px; color: var(--green); font-weight: 900; }
.ms-hl { background: linear-gradient(160deg, var(--navy3), var(--navy)); border: 2px solid var(--gold); transform: translateY(-8px); box-shadow: 0 30px 60px rgba(11,21,51,.28); }
.ms-hl li { color: #e3e9fb; }
.ms-hl li::before { color: var(--gold); }
.ms-hl .ms-when { background: none; color: var(--gold); }

.guarantee { margin-top: 30px; border-radius: 20px; background: var(--gold-soft); border: 2px solid var(--gold); padding: 22px 26px; }
.g-main { display: flex; align-items: center; gap: 18px; font-size: 17.5px; color: #3a2a05; }
.g-main .icon { margin: 0; flex: none; }
.g-main > div:nth-child(2) { flex: 1; }
.g-main .btn { flex: none; }
.g-terms { margin: 16px 0 0; padding: 14px 0 0 20px; border-top: 1px dashed #f0c76a; color: #6b5a33; font-size: 14px; columns: 2; column-gap: 32px; }
.g-terms li { margin: 4px 0; break-inside: avoid; }

/* Báo giá */
.plans { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; align-items: stretch; }
.plans.two { grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 820px; margin: 0 auto; }
.plan { position: relative; display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); }
.plan h3 { font-size: 20px; }
.plan .pm { margin: 10px 0 14px; }
.plan .pm b { font-size: 34px; font-weight: 900; color: var(--navy); letter-spacing: -.02em; }
.plan .pm small { display: block; color: var(--muted); font-size: 14px; }
.plan .pt { list-style: none; padding: 0; margin: 0 0 20px; border-top: 1px dashed var(--line); }
.plan .pt li { display: flex; align-items: center; gap: 8px; padding: 10px 0; border-bottom: 1px dashed var(--line); font-size: 15px; color: #34405e; }
.plan .pt li span { flex: 1; }
.plan .pt li em { font-style: normal; font-size: 12px; font-weight: 800; color: #0b7a47; background: var(--green-soft); padding: 2px 7px; border-radius: 99px; }
.plan .lim { color: var(--muted); margin: 0 0 6px; font-weight: 700; }
.plan .ticks { flex: 1; margin-bottom: 20px; }
.plan .btn { margin-top: auto; justify-content: center; }
.plan.hl { background: linear-gradient(160deg, var(--navy3), var(--navy)); border: 2px solid var(--gold); transform: translateY(-8px); box-shadow: 0 30px 60px rgba(11,21,51,.28); color: #fff; }
.plan.hl h3, .plan.hl .pm b { color: #fff; }
.plan.hl .pm small, .plan.hl .lim { color: #aebce6; }
.plan.hl .pt, .plan.hl .pt li { border-color: rgba(255,255,255,.15); color: #e3e9fb; }
.plan.hl .ticks li { color: #e3e9fb; }
.plan .ribbon { position: absolute; top: -14px; right: 18px; background: linear-gradient(135deg, var(--gold), var(--gold2)); color: #2a1a00; font-size: 12px; font-weight: 900; letter-spacing: .05em; text-transform: uppercase; padding: 5px 12px; border-radius: 99px; }
.ptable th.c, .ptable td.c { text-align: center; }
.ptable .yes svg { width: 20px; height: 20px; color: var(--green); stroke-width: 3; }
.ptable .no { color: #b7bfd3; font-weight: 800; }

/* Để nguyên hay bắt đầu */
.choice { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; align-items: stretch; }
.choice ul { list-style: none; padding: 0; margin: 14px 0 0; }
.choice li { position: relative; padding-left: 30px; margin: 12px 0; font-size: 16px; }
.choice .stay { background: #f7f8fb; box-shadow: none; }
.choice .stay h3 { color: #6b7590; }
.choice .stay li { color: #6b7590; }
.choice .stay li::before { content: "–"; position: absolute; left: 4px; color: var(--red); font-weight: 900; }
.choice .go { background: linear-gradient(160deg, var(--navy3), var(--navy)); color: #fff; border: 2px solid var(--gold); box-shadow: 0 30px 60px rgba(11,21,51,.28); }
.choice .go h3 { color: var(--gold); }
.choice .go li { color: #e3e9fb; }
.choice .go li::before { content: "✓"; position: absolute; left: 2px; color: var(--gold); font-weight: 900; }
.journey { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; margin-top: 34px; counter-reset: j; }
.jstep { position: relative; background: #fff; border: 1px solid var(--line); border-top: 4px solid var(--gold); border-radius: 14px; padding: 18px; }
.jstep .when { display: inline-block; font-size: 12.5px; font-weight: 900; letter-spacing: .05em; text-transform: uppercase; color: #8a5200; background: var(--gold-soft); padding: 4px 10px; border-radius: 99px; }
.jstep h3 { font-size: 18px; margin-top: 10px; }
.jstep p { color: var(--muted); font-size: 14.5px; margin-top: 6px; }
.promise { margin-top: 30px; display: flex; align-items: center; gap: 18px; padding: 22px 26px; border-radius: 18px; background: var(--gold-soft); border: 1px solid #ffe2a1; color: #3a2a05; font-size: 16.5px; }
.promise .icon { margin: 0; flex: none; }
.promise > div:nth-child(2) { flex: 1; }
.promise .btn { flex: none; }

/* Băn khoăn thường gặp */
.objs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.obj { background: var(--bg); border: 1px solid var(--line); border-radius: 16px; padding: 22px 24px; }
.obj .q { position: relative; padding-left: 34px; font-weight: 800; font-size: 17px; color: var(--navy); }
.obj .qm { position: absolute; left: 0; top: -10px; font-size: 46px; line-height: 1; font-weight: 900; color: var(--gold2); font-family: Georgia, serif; }
.obj p { margin: 10px 0 0 20px; padding-left: 14px; color: #34405e; font-size: 15.5px; border-left: 3px solid var(--green); }

/* ---------- Màn hình nhỏ ---------- */
@media (max-width: 1020px) {
  .hero .wrap, .row, .cta-band, .guide, .why { grid-template-columns: 1fr; }
  .row.rev .txt { order: 0; }
  .g3, .g4, .cmp, .journey { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .milestones, .plans, .plans.two { grid-template-columns: 1fr; max-width: 640px; margin: 0 auto; }
  .plan.hl { transform: none; }
  .ms-hl { transform: none; }
  .brands { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .pains-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .promise { flex-wrap: wrap; }
  .menu { display: none; }
  .cmp .good { transform: none; }
  .browser { transform: none; }
  .toc { position: static; }
  footer .cols { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  section { padding: 60px 0; }
  .hero { padding: 44px 0 64px; }
  .hero h1 { font-size: 30px; }
  .tag { font-size: 11.5px; }
  .hero .sub { font-size: 16.5px; }
  h2, .cta-band h2, .eyebrow, .cta-band .eyebrow { font-size: 26px; }
  .page-hero h1 { font-size: 30px; }
  .lead { font-size: 16px; }
  .row .txt h3, .chipnum { font-size: 22px; }
  .rows { gap: 56px; }
  .g2, .g3, .g4, .cmp, .steps, .choice, .journey, .objs { grid-template-columns: 1fr; }
  .promise, .bridge, .g-main { flex-direction: column; align-items: flex-start; }
  .g-main .btn { width: 100%; }
  .g-terms { columns: 1; }
  .bridge .btn { width: 100%; }
  .cta-band { padding: 30px 20px; }
  table { display: block; overflow-x: auto; }
  th, td { padding: 10px 12px; }
  .cta-band > *, .guide > *, .toc { min-width: 0; }
  .tier { flex-direction: column; align-items: flex-start; gap: 8px; margin-right: 0 !important; }
  .whytxt h3 { font-size: 22px; }
  .promise .btn { width: 100%; }
  .brands { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .brand-card { padding: 14px 10px; gap: 8px; flex-direction: column; text-align: center; }
  .brand-card .bt { align-items: center; }
  .pains-grid { grid-template-columns: 1fr; gap: 8px; }
  .pains-box { padding: 18px 14px; }
  .pains-head h2 { font-size: 22px; }
  .hero .wrap.pains-wrap { margin-top: 32px; }
  .brand-card .bi { width: 38px; height: 38px; border-radius: 11px; }
  .brand-card .bi svg { width: 21px; height: 21px; }
  .brand-card b { font-size: 13.5px; }
  .brand-card small { font-size: 11.5px; }
  .float.f1 { position: relative; left: 0; bottom: 0; width: auto; margin-top: 14px; }
  .float.f2 { display: none; }
  .topbar .btn { display: none; }
  .ctas .btn { width: 100%; }
  .cta-band { padding: 34px 22px; border-radius: 22px; }
  .body.indent { padding-left: 22px; }
  td:first-child { width: auto; }
  footer .cols { grid-template-columns: 1fr; }
  .zalo-float { display: none; }
  .mbar { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; position: fixed; left: 0; right: 0; bottom: 0; z-index: 50; padding: 10px 12px calc(10px + env(safe-area-inset-bottom)); background: rgba(255,255,255,.96); backdrop-filter: blur(10px); border-top: 1px solid var(--line); box-shadow: 0 -8px 24px rgba(11,21,51,.08); }
  .mbar .btn { height: 48px; font-size: 15.5px; width: 100%; }
  .shot-wrap::before { display: none; }
}