/* ==========================================================
   Cường Tech — giao diện neon xanh trên nền navy (theo logo)
   ========================================================== */

@font-face { font-family: 'Be Vietnam Pro'; font-weight: 400; font-display: swap; src: url(/fonts/be-vietnam-pro-vietnamese-400-normal.woff2) format('woff2'); unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB; }
@font-face { font-family: 'Be Vietnam Pro'; font-weight: 400; font-display: swap; src: url(/fonts/be-vietnam-pro-latin-400-normal.woff2) format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: 'Be Vietnam Pro'; font-weight: 500; font-display: swap; src: url(/fonts/be-vietnam-pro-vietnamese-500-normal.woff2) format('woff2'); unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB; }
@font-face { font-family: 'Be Vietnam Pro'; font-weight: 500; font-display: swap; src: url(/fonts/be-vietnam-pro-latin-500-normal.woff2) format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: 'Be Vietnam Pro'; font-weight: 600; font-display: swap; src: url(/fonts/be-vietnam-pro-vietnamese-600-normal.woff2) format('woff2'); unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB; }
@font-face { font-family: 'Be Vietnam Pro'; font-weight: 600; font-display: swap; src: url(/fonts/be-vietnam-pro-latin-600-normal.woff2) format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: 'Be Vietnam Pro'; font-weight: 700; font-display: swap; src: url(/fonts/be-vietnam-pro-vietnamese-700-normal.woff2) format('woff2'); unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB; }
@font-face { font-family: 'Be Vietnam Pro'; font-weight: 700; font-display: swap; src: url(/fonts/be-vietnam-pro-latin-700-normal.woff2) format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: 'Chakra Petch'; font-weight: 600; font-display: swap; src: url(/fonts/chakra-petch-vietnamese-600-normal.woff2) format('woff2'); unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB; }
@font-face { font-family: 'Chakra Petch'; font-weight: 600; font-display: swap; src: url(/fonts/chakra-petch-latin-600-normal.woff2) format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: 'Chakra Petch'; font-weight: 700; font-display: swap; src: url(/fonts/chakra-petch-vietnamese-700-normal.woff2) format('woff2'); unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB; }
@font-face { font-family: 'Chakra Petch'; font-weight: 700; font-display: swap; src: url(/fonts/chakra-petch-latin-700-normal.woff2) format('woff2'); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }

:root {
  --bg: #040914;
  --bg-2: #061024;
  --panel: #0a1730;
  --panel-2: #0e1f3f;
  --panel-hi: #132a55;
  --line: rgba(64, 160, 255, 0.18);
  --line-hi: rgba(64, 170, 255, 0.5);
  --text: #e9f2ff;
  --muted: #8ea5c9;
  --blue: #1a7dff;
  --blue-2: #0a5cff;
  --cyan: #38d4ff;
  --ice: #9fe7ff;
  --danger: #ff4d6a;
  --ok: #2fe0a0;
  --warn: #ffb547;
  --radius: 10px;
  --cut: 14px;
  --glow: 0 0 0 1px rgba(56, 212, 255, 0.25), 0 0 22px rgba(26, 125, 255, 0.35);
  --font: 'Be Vietnam Pro', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --display: 'Chakra Petch', 'Be Vietnam Pro', system-ui, sans-serif;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font: 15px/1.6 var(--font);
  color: var(--text);
  background-color: var(--bg);
  background-image:
    radial-gradient(1200px 600px at 85% -10%, rgba(26, 125, 255, 0.18), transparent 60%),
    radial-gradient(900px 500px at -10% 20%, rgba(56, 212, 255, 0.08), transparent 60%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='98' viewBox='0 0 56 98'%3E%3Cpath d='M28 66L0 50V17L28 1l28 16v33L28 66zm0 32L0 82V66l28 16 28-16v16L28 98z' fill='none' stroke='%231a7dff' stroke-opacity='.07' stroke-width='1'/%3E%3C/svg%3E");
  background-attachment: fixed;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
main { flex: 1; padding-bottom: 48px; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--cyan); text-decoration: none; }
a:hover { color: var(--ice); }
h1, h2, h3 { font-family: var(--display); line-height: 1.2; margin: 0 0 .5em; letter-spacing: .01em; }
h1 { font-size: clamp(24px, 3.2vw, 34px); }
h2 { font-size: 22px; }
h3 { font-size: 17px; }
p { margin: 0 0 1em; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }
[hidden] { display: none !important; }
.icon { flex-shrink: 0; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.danger { color: var(--danger); }
.num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.push-right { margin-left: auto; }

.container { width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 16px; }
.container.narrow { max-width: 760px; }
.section { margin-top: 40px; }

/* ---------- Thẻ / nút ---------- */
.card {
  background: linear-gradient(180deg, rgba(19, 42, 85, 0.55), rgba(10, 23, 48, 0.85));
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.btn {
  --c: var(--panel-hi);
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 18px; border: 1px solid var(--line-hi); background: var(--c);
  font-weight: 600; color: var(--text); cursor: pointer; white-space: nowrap; border-radius: 8px;
  transition: filter .15s, transform .15s, box-shadow .15s, border-color .15s;
}
.btn:hover { color: #fff; filter: brightness(1.15); border-color: var(--cyan); }
.btn:active { transform: translateY(1px); }
/* Nút chính vát góc như logo (không có viền nên vát không làm đứt viền) */
.btn-primary {
  background: linear-gradient(135deg, var(--cyan), var(--blue) 55%, var(--blue-2)); border: 0; padding: 11px 19px; color: #fff; text-shadow: 0 1px 2px rgba(0, 20, 60, .5);
  border-radius: 0; clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
}
.btn-primary.btn-sm { padding: 8px 13px; }
.btn-primary.btn-lg { padding: 14px 25px; }
.btn-ghost { background: rgba(26, 125, 255, 0.08); }
.btn-danger { background: rgba(255, 77, 106, 0.15); border-color: rgba(255, 77, 106, .5); color: #ffc2cc; }
.btn-sm { padding: 7px 12px; font-size: 13.5px; }
.btn-lg { padding: 13px 24px; font-size: 16px; }
.btn-block { width: 100%; }
.icon-btn { display: inline-grid; place-items: center; width: 42px; height: 42px; border: 1px solid var(--line); background: rgba(26,125,255,.08); border-radius: 8px; cursor: pointer; }
.linklike { background: none; border: 0; padding: 0; color: var(--cyan); cursor: pointer; }

/* ---------- Header ---------- */
/* Hiệu ứng mờ đặt ở ::before: backdrop-filter trên chính header sẽ biến header thành khung chứa
   các phần tử position:fixed bên trong (menu trượt, lớp phủ) → menu bị kẹp trong chiều cao header. */
/* ---------- Đầu trang ---------- */
.topbar { font-size: 12.5px; color: var(--muted); background: #030712; border-bottom: 1px solid rgba(64,160,255,.08); }
.topbar-inner { display: flex; justify-content: space-between; align-items: center; gap: 16px; min-height: 34px; }
.topbar-info { display: flex; gap: 20px; white-space: nowrap; }
.topbar-info > span { display: inline-flex; align-items: center; gap: 6px; }
.topbar-info .icon { color: var(--cyan); }
.topbar-links { display: flex; gap: 2px; }
.topbar-links a { color: var(--muted); padding: 4px 9px; border-radius: 6px; white-space: nowrap; transition: color .15s, background .15s; }
.topbar-links a:hover { color: var(--text); background: rgba(26,125,255,.1); }

.site-header { position: sticky; top: 0; z-index: 50; isolation: isolate; transition: box-shadow .25s; }
.site-header::before { content: ''; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(7,18,40,.95), rgba(4,9,20,.93)); backdrop-filter: saturate(140%) blur(14px); -webkit-backdrop-filter: saturate(140%) blur(14px); }
/* Vạch sáng neon ở đáy đầu trang */
.site-header::after { content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; pointer-events: none; background: linear-gradient(90deg, transparent, rgba(56,212,255,.5) 18%, rgba(26,125,255,.95) 50%, rgba(56,212,255,.5) 82%, transparent); }
.site-header.is-scrolled { box-shadow: 0 12px 32px rgba(0,0,0,.5); }
.header-main { display: flex; align-items: center; gap: 22px; padding-top: 12px; padding-bottom: 12px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); flex-shrink: 0; }
.brand img { width: 48px; height: 48px; filter: drop-shadow(0 0 10px rgba(26,125,255,.6)); transition: transform .35s; }
.brand:hover img { transform: rotate(-10deg) scale(1.05); }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-family: var(--display); font-weight: 700; font-size: 22px; font-style: italic; letter-spacing: .02em; }
.brand-name b { color: var(--cyan); text-shadow: 0 0 12px rgba(56,212,255,.6); }
.brand-sub { font-size: 10.5px; color: var(--muted); letter-spacing: .16em; text-transform: uppercase; }

.search { flex: 1; display: flex; max-width: 560px; border: 1px solid var(--line-hi); background: rgba(10,23,48,.8); border-radius: 8px; overflow: hidden; transition: box-shadow .2s; }
.search:focus-within { box-shadow: var(--glow); }
.search input { flex: 1; min-width: 0; border: 0; background: transparent; padding: 10px 14px; outline: none; }
.search button { border: 0; background: linear-gradient(135deg, var(--cyan), var(--blue)); color: #fff; padding: 0 16px; cursor: pointer; }
/* Ô tìm kiếm ở đầu trang: dạng viên thuốc, kính lúp bên trái, nút chữ "Tìm" */
.site-header .search { max-width: 620px; align-items: center; gap: 10px; height: 46px; padding: 4px 4px 4px 16px; border-color: var(--line); border-radius: 999px; background: rgba(10,23,48,.7); transition: border-color .2s, box-shadow .2s, background .2s; }
.site-header .search > .icon { color: var(--muted); flex-shrink: 0; transition: color .2s; }
.site-header .search:focus-within { border-color: var(--line-hi); background: rgba(10,23,48,.95); box-shadow: 0 0 0 4px rgba(26,125,255,.14), var(--glow); }
.site-header .search:focus-within > .icon { color: var(--cyan); }
.site-header .search input[type=search][name=q] { height: 100%; padding: 0; border: 0; border-radius: 0; background: transparent; box-shadow: none; font-size: 14.5px; }
.site-header .search input::placeholder { color: #6f86ab; }
.site-header .search button[type=submit] { height: 100%; padding: 0 22px; border-radius: 999px; font-weight: 700; font-size: 14px; background: linear-gradient(135deg, var(--cyan), var(--blue) 60%, var(--blue-2)); box-shadow: 0 4px 14px rgba(26,125,255,.35); transition: filter .15s; }
.site-header .search button[type=submit]:hover { filter: brightness(1.12); }
.site-header .search-suggest { top: calc(100% + 8px); }

.hdr-actions { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.hdr-actions > a { display: flex; align-items: center; gap: 10px; padding: 5px 10px 5px 5px; border-radius: 14px; color: var(--text); transition: background .2s; }
.hdr-actions > a:hover { background: rgba(26,125,255,.1); color: #fff; }
.hdr-ico { position: relative; display: grid; place-items: center; flex-shrink: 0; width: 40px; height: 40px; border-radius: 12px; color: var(--cyan); background: rgba(26,125,255,.12); border: 1px solid var(--line); }
.hdr-ico-call { color: var(--ok); background: linear-gradient(135deg, rgba(47,224,160,.22), rgba(15,167,111,.1)); border-color: rgba(47,224,160,.4); }
.hdr-ico-call::after { content: ''; position: absolute; inset: -4px; border-radius: 15px; border: 2px solid rgba(47,224,160,.45); animation: hdr-ring 2.4s ease-out infinite; }
@keyframes hdr-ring { 0% { opacity: .9; transform: scale(.9); } 70%, 100% { opacity: 0; transform: scale(1.22); } }
.hdr-label { display: flex; flex-direction: column; line-height: 1.2; }
.hdr-label small { font-size: 11.5px; color: var(--muted); }
.hdr-label b { font-size: 14px; font-weight: 600; white-space: nowrap; }
.hdr-call .hdr-label b, .drawer-call .hdr-label b { font-family: var(--display); font-size: 16.5px; color: var(--ice); letter-spacing: .02em; }
.cart-btn { position: relative; }
.hdr-btn { display: inline-grid; place-items: center; width: 42px; height: 42px; border: 0; border-radius: 12px; background: rgba(26,125,255,.1); color: var(--text); cursor: pointer; transition: background .15s; }
.hdr-btn:hover { background: rgba(26,125,255,.2); }
.cart-count { position: absolute; top: -7px; left: 22px; min-width: 20px; height: 20px; padding: 0 5px; border-radius: 10px; background: var(--danger); color: #fff; font-size: 12px; font-weight: 700; display: grid; place-items: center; }
.menu-toggle { display: none; }

.mainnav { border-top: 1px solid rgba(64,160,255,.08); }
.mainnav-head, .drawer-title, .drawer-extra { display: none; }
.mainnav ul { list-style: none; margin: 0; padding: 0; }
.mainnav-inner > ul { display: flex; align-items: center; gap: 2px; padding: 6px 0; }
.mainnav-inner > ul > li { position: relative; }
.mainnav-inner > ul > li > a { display: flex; align-items: center; gap: 7px; padding: 7px 12px; color: #d6e4fa; font-weight: 500; font-size: 14.5px; white-space: nowrap; border-radius: 999px; transition: background .15s, color .15s; }
.mainnav-inner > ul > li > a .icon { color: var(--cyan); }
.mainnav-inner > ul > li:hover > a, .mainnav-inner > ul > li:focus-within > a { background: rgba(26,125,255,.15); color: #fff; }
.subnav { position: absolute; top: calc(100% + 8px); left: 0; min-width: 230px; padding: 8px; background: rgba(10,23,48,.98); border: 1px solid var(--line-hi); border-radius: 14px; box-shadow: 0 24px 50px rgba(0,0,0,.55), var(--glow); opacity: 0; visibility: hidden; transform: translateY(8px); transition: .18s; z-index: 10; }
/* Cầu nối vô hình để rê chuột từ mục cha xuống menu con không bị mất */
.subnav::before { content: ''; position: absolute; left: 0; right: 0; top: -10px; height: 10px; }
.has-sub:hover .subnav, .has-sub:focus-within .subnav { opacity: 1; visibility: visible; transform: none; }
.subnav a { display: flex; align-items: center; gap: 10px; padding: 9px 10px; color: var(--text); font-size: 14px; border-radius: 9px; }
.subnav a:hover { background: rgba(26,125,255,.16); color: #fff; }
.subnav .icon { color: var(--cyan); }
.nav-sep { margin-left: auto; }
/* Deal hời: luôn nổi màu cam, ngọn lửa phập phồng */
.mainnav-inner > ul > li > .nav-deal { color: #fff; font-weight: 700; background: linear-gradient(135deg, #ff8a3d, #ff4d2e 55%, #ff2d55); box-shadow: 0 4px 18px rgba(255,80,50,.45), inset 0 1px 0 rgba(255,255,255,.28); text-shadow: 0 1px 2px rgba(120,20,0,.35); transition: transform .15s, box-shadow .15s, filter .15s; }
.mainnav-inner > ul > li > .nav-deal .icon { color: #fff4c2; filter: drop-shadow(0 0 4px rgba(255,220,120,.9)); transform-origin: 50% 90%; animation: deal-flame 1.6s ease-in-out infinite; }
.mainnav-inner > ul > li:hover > .nav-deal { background: linear-gradient(135deg, #ff8a3d, #ff4d2e 55%, #ff2d55); filter: brightness(1.1); box-shadow: 0 6px 26px rgba(255,80,50,.7), inset 0 1px 0 rgba(255,255,255,.3); transform: translateY(-1px); }
/* Đồng hồ đếm ngược trong nút Deal hời: ô số tối, chữ số nhảy đều (tabular) */
.nav-deal-timer { display: inline-flex; align-items: center; margin: -3px -7px -3px 3px; padding: 3px 8px; border-radius: 999px; background: rgba(40, 4, 0, .42); box-shadow: inset 0 0 0 1px rgba(255, 220, 160, .25); font-variant-numeric: tabular-nums; text-shadow: none; }
.nav-deal-timer b { font-family: var(--display); font-size: 13px; font-weight: 700; letter-spacing: .04em; color: #fff4c2; min-width: 7.2ch; text-align: center; }
.nav-deal-timer.ended { display: none; }
@keyframes deal-flame { 0%, 100% { transform: scale(1) rotate(0); } 30% { transform: scale(1.14) rotate(-7deg); } 60% { transform: scale(.94) rotate(5deg); } }

/* Build PC: khối nghiêng "phá cách" — viền neon chạy màu xanh–tím–hồng, vệt sáng quét ngang */
.mainnav-inner > ul > li > .nav-build { position: relative; isolation: isolate; margin-left: 8px; padding: 0; border-radius: 0; background: none; transform: skewX(-14deg); transition: box-shadow .2s, transform .2s; }
.mainnav-inner > ul > li:hover > .nav-build { background: none; transform: skewX(-14deg) translateY(-1px); box-shadow: 0 0 22px rgba(122,92,255,.55), 0 0 8px rgba(56,212,255,.5); }
.nav-build::before { content: ''; position: absolute; inset: 0; z-index: -2; background: linear-gradient(90deg, var(--cyan), #7a5cff, #ff3fd1, var(--cyan)); background-size: 300% 100%; animation: build-border 4s linear infinite; }
.nav-build::after { content: ''; position: absolute; inset: 1.5px; z-index: -1; background: linear-gradient(100deg, transparent 0, rgba(255,255,255,.22) 50%, transparent 100%) no-repeat, linear-gradient(135deg, #0a1a3d, #120a33); background-size: 40% 100%, auto; background-position: -60% 0, 0 0; animation: build-sweep 3.2s ease-in-out infinite; }
.nav-build-in { display: flex; align-items: center; gap: 7px; padding: 7px 16px; transform: skewX(14deg); font-family: var(--display); font-weight: 700; font-size: 14.5px; letter-spacing: .06em; text-transform: uppercase; color: #eaf8ff; text-shadow: 0 0 10px rgba(56,212,255,.6); }
.nav-build-in .icon { color: var(--cyan); transition: transform .3s; }
.nav-build:hover .nav-build-in .icon { transform: rotate(-25deg) scale(1.1); }
.nav-build:hover::before { animation-duration: 1.5s; }
@keyframes build-border { to { background-position: 300% 0; } }
@keyframes build-sweep { 0%, 55% { background-position: -60% 0, 0 0; } 100% { background-position: 170% 0, 0 0; } }
.nav-backdrop { display: none; }
.sub-toggle { display: none; }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero::before { content: ''; position: absolute; inset: 0; background: linear-gradient(115deg, transparent 40%, rgba(26,125,255,.12) 40.2%, transparent 65%), linear-gradient(115deg, transparent 70%, rgba(56,212,255,.08) 70.2%, transparent 85%); pointer-events: none; }
.hero-inner { position: relative; display: grid; grid-template-columns: 1.2fr 1fr; align-items: center; gap: 32px; padding-top: 48px; padding-bottom: 48px; }
.eyebrow { display: inline-block; font-family: var(--display); color: var(--cyan); letter-spacing: .16em; text-transform: uppercase; font-size: 13px; padding: 4px 12px; border: 1px solid var(--line-hi); clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%); background: rgba(26,125,255,.1); }
.hero h1 { font-size: clamp(32px, 5vw, 56px); font-style: italic; margin-top: 16px; }
.glow-text { color: var(--cyan); text-shadow: 0 0 24px rgba(56,212,255,.65); }
.hero-lead { color: var(--muted); font-size: 17px; max-width: 560px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.hero-cta.center { justify-content: center; }
.hero-logo { display: grid; place-items: center; }
.hero-logo img { width: min(420px, 100%); filter: drop-shadow(0 0 40px rgba(26,125,255,.55)); animation: float 6s ease-in-out infinite; }
@keyframes float { 50% { transform: translateY(-10px); } }
@media (prefers-reduced-motion: reduce) { .hero-logo img { animation: none; } html { scroll-behavior: auto; } }

.usp { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 24px; }
.usp-item { display: flex; align-items: center; gap: 12px; padding: 14px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(10,23,48,.6); }
.usp-item b { display: block; font-size: 14.5px; }
.usp-item small { color: var(--muted); font-size: 12.5px; }
.usp-icon { display: grid; place-items: center; width: 48px; height: 48px; flex-shrink: 0; color: var(--cyan); background: rgba(26,125,255,.12); border: 1px solid var(--line-hi); clip-path: polygon(25% 0, 75% 0, 100% 50%, 75% 100%, 25% 100%, 0 50%); }

.section-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; padding-bottom: 10px; border-bottom: 1px solid var(--line); position: relative; }
.section-head::after { content: ''; position: absolute; left: 0; bottom: -1px; width: 120px; height: 2px; background: linear-gradient(90deg, var(--cyan), transparent); box-shadow: 0 0 10px var(--cyan); }
.section-head h2 { display: flex; align-items: center; gap: 10px; margin: 0; text-transform: uppercase; font-style: italic; }
.section-head h2 .icon { color: var(--cyan); }
.see-all { display: inline-flex; align-items: center; gap: 4px; font-size: 14px; }

.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 10px; }
.cat-tile { display: flex; flex-direction: column; align-items: center; gap: 10px; padding: 18px 8px; text-align: center; color: var(--text); font-weight: 500; font-size: 14px; border: 1px solid var(--line); background: rgba(10,23,48,.6); border-radius: var(--radius); transition: .15s; }
.cat-tile .icon { color: var(--cyan); }
.cat-tile:hover { border-color: var(--line-hi); box-shadow: var(--glow); transform: translateY(-2px); color: #fff; }

/* ---------- Sản phẩm ---------- */
.product-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; }
.product-row { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(220px, 1fr); gap: 14px; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 8px; scrollbar-width: thin; scrollbar-color: var(--panel-hi) transparent; }
.product-row > * { scroll-snap-align: start; }
@media (min-width: 1100px) { .product-row { grid-auto-columns: calc((100% - 14px * 4) / 5); } }
.product-card { display: flex; flex-direction: column; overflow: hidden; transition: border-color .15s, box-shadow .15s, transform .15s; }
.product-card:hover { border-color: var(--line-hi); box-shadow: var(--glow); transform: translateY(-2px); }
.product-thumb { position: relative; display: block; aspect-ratio: 1; background: radial-gradient(circle at 50% 40%, #13305f, #081329 70%); }
.product-thumb img { width: 100%; height: 100%; object-fit: contain; padding: 10px; background: #fff; }
.img-placeholder { width: 100%; height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; color: var(--cyan); background: radial-gradient(circle at 50% 40%, rgba(26,125,255,.25), transparent 65%); }
.img-placeholder .icon { filter: drop-shadow(0 0 12px rgba(56,212,255,.7)); }
.img-placeholder span { font-family: var(--display); font-weight: 700; letter-spacing: .1em; text-transform: uppercase; font-size: 13px; color: var(--muted); }
.badge-sale { position: absolute; top: 10px; left: 10px; padding: 3px 9px; background: var(--danger); color: #fff; font-weight: 700; font-size: 13px; clip-path: polygon(6px 0, 100% 0, calc(100% - 6px) 100%, 0 100%); }
.product-body { display: flex; flex-direction: column; flex: 1; padding: 12px 14px 14px; gap: 6px; }
.product-brand { font-size: 11.5px; color: var(--cyan); text-transform: uppercase; letter-spacing: .1em; }
.product-name { font-family: var(--font); font-size: 14.5px; font-weight: 600; margin: 0; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 2.8em; }
.product-name a { color: var(--text); }
.product-name a:hover { color: var(--ice); }
.price-row { display: flex; align-items: baseline; flex-wrap: wrap; gap: 4px 8px; margin-top: auto; }
.price { font-family: var(--display); font-weight: 700; font-size: 18px; color: var(--ice); text-shadow: 0 0 14px rgba(56,212,255,.35); }
.price-lg { font-size: 30px; }
.price-old { color: var(--muted); font-size: 13px; }
.card-actions { margin-top: 6px; }
.card-actions .btn { width: 100%; }

.stock { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 12.5px; font-weight: 600; }
.stock.in { background: rgba(47,224,160,.12); color: var(--ok); border: 1px solid rgba(47,224,160,.35); }
.stock.out { background: rgba(255,77,106,.12); color: var(--danger); border: 1px solid rgba(255,77,106,.35); }

.empty { text-align: center; padding: 48px 16px; color: var(--muted); }
.empty .icon { color: var(--cyan); margin: 0 auto 10px; }

/* ---------- Trang danh mục ---------- */
.breadcrumbs { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; padding: 16px 0 8px; font-size: 13.5px; color: var(--muted); }
.breadcrumbs a { color: var(--muted); }
.breadcrumbs a:hover { color: var(--cyan); }
.breadcrumbs span { color: var(--text); }
.page-title { display: flex; align-items: baseline; flex-wrap: wrap; gap: 4px 14px; margin: 8px 0 18px; }
.page-title h1 { display: flex; align-items: center; gap: 10px; margin: 0; }
.page-title .icon { color: var(--cyan); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.chips a, .filter-group a { padding: 6px 14px; border: 1px solid var(--line); border-radius: 20px; color: var(--text); font-size: 13.5px; background: rgba(10,23,48,.6); }
.chips a:hover, .filter-group a:hover { border-color: var(--line-hi); }
.chips a.active, .filter-group a.active { background: linear-gradient(135deg, var(--cyan), var(--blue)); border-color: transparent; color: #fff; }
.filters { display: flex; flex-direction: column; gap: 10px; padding: 14px; margin-bottom: 18px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(10,23,48,.6); }
.filter-group { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.filter-label { font-weight: 600; font-size: 13.5px; color: var(--muted); min-width: 72px; }
.pagination { display: flex; justify-content: center; flex-wrap: wrap; gap: 6px; margin-top: 28px; }
.pagination a, .pagination span { min-width: 40px; padding: 8px 12px; text-align: center; border: 1px solid var(--line); border-radius: 8px; color: var(--text); }
.pagination .current { background: var(--blue); border-color: var(--blue); }

/* ---------- Chi tiết sản phẩm ---------- */
.product-detail { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: 32px; margin-top: 8px; }
.gallery-main { position: relative; aspect-ratio: 1; overflow: hidden; }
.gallery-main img { width: 100%; height: 100%; object-fit: contain; background: #fff; padding: 16px; }
.gallery-thumbs { display: flex; gap: 8px; margin-top: 10px; overflow-x: auto; }
.gallery-thumbs button { width: 72px; height: 72px; flex-shrink: 0; padding: 4px; border: 1px solid var(--line); border-radius: 8px; background: #fff; cursor: pointer; }
.gallery-thumbs button.active { border-color: var(--cyan); box-shadow: var(--glow); }
.gallery-thumbs img { width: 100%; height: 100%; object-fit: contain; }
.product-info h1 { font-family: var(--font); font-weight: 700; font-size: clamp(22px, 2.6vw, 28px); }
.product-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px; color: var(--muted); font-size: 14px; margin-bottom: 14px; }
.product-meta b { color: var(--text); }
.price-box { display: flex; align-items: baseline; flex-wrap: wrap; gap: 6px 14px; padding: 16px 18px; margin-bottom: 14px; border: 1px solid var(--line-hi); border-left: 3px solid var(--cyan); border-radius: var(--radius); background: linear-gradient(135deg, rgba(26,125,255,.18), rgba(10,23,48,.4)); }
.price-box .price-old { font-size: 16px; }
.save { color: var(--danger); font-weight: 600; font-size: 14px; }
.short-desc { color: #c9d8f0; }
.perks { list-style: none; padding: 0; margin: 0 0 18px; display: grid; gap: 8px; }
.perks li { display: flex; align-items: center; gap: 10px; font-size: 14.5px; }
.perks .icon { color: var(--ok); }
.buy-box { display: flex; flex-wrap: wrap; gap: 10px; align-items: stretch; }
.buy-box .btn { flex: 1 1 180px; }
.qty { display: inline-flex; border: 1px solid var(--line-hi); border-radius: 8px; overflow: hidden; }
.qty button { width: 40px; border: 0; background: rgba(26,125,255,.12); font-size: 18px; cursor: pointer; }
.qty input { width: 52px; text-align: center; border: 0; background: transparent; -moz-appearance: textfield; }
.qty input::-webkit-inner-spin-button { -webkit-appearance: none; }
.call-line { display: block; margin-top: 14px; color: var(--muted); }
.call-line b { color: var(--ice); font-family: var(--display); font-size: 18px; }
.detail-grid { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: 20px; margin-top: 32px; align-items: start; }
.detail-section { padding: 20px 22px; }
.detail-section > h2 { font-size: 19px; text-transform: uppercase; font-style: italic; border-bottom: 1px solid var(--line); padding-bottom: 10px; }
.specs { width: 100%; border-collapse: collapse; font-size: 14px; }
.specs th, .specs td { padding: 9px 10px; text-align: left; vertical-align: top; border-bottom: 1px solid rgba(64,160,255,.1); }
.specs th { width: 40%; color: var(--muted); font-weight: 500; }
.specs tr:nth-child(odd) { background: rgba(26,125,255,.05); }
.prose { color: #d3e0f5; }
.prose img { border-radius: 8px; margin: 12px auto; }
.prose h2 { font-size: 20px; margin-top: 1.4em; }
.prose ul, .prose ol { padding-left: 1.3em; }

/* ---------- Giỏ hàng / thanh toán ---------- */
.cart-layout { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(320px, 1fr); gap: 20px; align-items: start; }
.cart-items { padding: 8px 18px; }
.cart-line { display: grid; grid-template-columns: auto 72px 1fr auto; gap: 14px; align-items: center; padding: 14px 0; border-bottom: 1px solid var(--line); }
.cart-line:last-child { border-bottom: 0; }
.cart-thumb { width: 72px; height: 72px; border-radius: 8px; overflow: hidden; background: #fff; display: grid; place-items: center; }
.cart-thumb img { width: 100%; height: 100%; object-fit: contain; }
.cart-thumb.ph { background: var(--panel-hi); color: var(--cyan); }
.cart-name { font-weight: 600; color: var(--text); }
.cart-sub { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; margin-top: 6px; }
.cart-sub .qty button { width: 32px; }
.cart-sub .qty input { width: 44px; }
.cart-remove { background: none; border: 0; color: var(--muted); cursor: pointer; display: inline-flex; align-items: center; gap: 4px; font-size: 13px; }
.cart-remove:hover { color: var(--danger); }
.cart-line-total { font-family: var(--display); font-weight: 700; color: var(--ice); text-align: right; }
.cart-empty { text-align: center; padding: 40px 0; }
/* Chọn sản phẩm để đặt & xóa nhiều */
.cart-toolbar { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px 14px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.cart-check { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; cursor: pointer; }
.cart-tools { display: inline-flex; gap: 6px; }
.cart-tool { padding: 6px 12px; border: 1px solid var(--line-hi); border-radius: 8px; background: transparent; color: var(--muted); font-size: 13px; cursor: pointer; }
.cart-tool:hover:not(:disabled) { color: var(--danger); border-color: var(--danger); }
.cart-tool:disabled { opacity: .45; cursor: default; }
.cart-sel { cursor: pointer; }
.cart-line.off .cart-thumb, .cart-line.off .cart-name, .cart-line.off .cart-line-total { opacity: .5; }
.cart-line.off .cart-line-total { text-decoration: line-through; }
.toast-undo { margin-left: 10px; padding: 0; border: 0; background: none; color: var(--cyan); font: inherit; font-weight: 700; cursor: pointer; }
.checkout button[type=submit]:disabled { opacity: .55; cursor: not-allowed; }
.checkout { padding: 20px; position: sticky; top: 160px; }
.checkout h2 { font-size: 19px; text-transform: uppercase; font-style: italic; }
form label { display: flex; flex-direction: column; gap: 5px; margin-bottom: 12px; font-size: 14px; font-weight: 500; }
input:not([type=checkbox]):not([type=radio]):not([type=file]), select, textarea {
  width: 100%; padding: 10px 12px; border: 1px solid var(--line-hi); border-radius: 8px; background: rgba(4,9,20,.7); outline: none; transition: box-shadow .15s, border-color .15s;
}
input:focus, select:focus, textarea:focus { border-color: var(--cyan); box-shadow: var(--glow); }
select option { background: var(--panel); }
textarea { resize: vertical; }
.radio-group { border: 1px solid var(--line); border-radius: 8px; padding: 8px 12px 4px; margin: 0 0 12px; }
.radio-group legend { font-size: 14px; font-weight: 500; padding: 0 4px; }
.radio-group label { flex-direction: row; align-items: center; gap: 8px; font-weight: 400; margin-bottom: 6px; }
input[type=radio], input[type=checkbox] { accent-color: var(--blue); width: 17px; height: 17px; }
.checkout-total { display: flex; justify-content: space-between; align-items: baseline; padding: 14px 0; margin: 6px 0 10px; border-top: 1px dashed var(--line-hi); }
.form-error { color: #ffc2cc; background: rgba(255,77,106,.12); border: 1px solid rgba(255,77,106,.4); padding: 10px 12px; border-radius: 8px; font-size: 14px; }
.cf-turnstile { margin-bottom: 12px; min-height: 65px; }

.success-card { text-align: center; padding: 36px 24px; margin-top: 32px; }
.success-icon { display: inline-grid; place-items: center; width: 76px; height: 76px; border-radius: 50%; color: #fff; background: linear-gradient(135deg, var(--ok), #0fa76f); box-shadow: 0 0 30px rgba(47,224,160,.5); margin-bottom: 14px; }
.order-code { font-family: var(--display); font-size: 22px; color: var(--ice); letter-spacing: .06em; }
.order-table { width: 100%; border-collapse: collapse; margin: 18px 0; text-align: left; font-size: 14.5px; }
.order-table td, .order-table th { padding: 10px 6px; border-bottom: 1px solid var(--line); }
.order-table tfoot th { border-bottom: 0; font-size: 16px; }
.bank-box { text-align: left; padding: 16px; border: 1px dashed var(--line-hi); border-radius: var(--radius); margin: 12px 0; }
.big-404 { font-family: var(--display); font-size: 96px; font-weight: 700; line-height: 1; margin: 0; color: var(--cyan); text-shadow: 0 0 40px rgba(56,212,255,.6); }
.success-inline { display: flex; gap: 12px; align-items: center; color: var(--ok); padding: 12px 0; }
.success-inline p { margin: 0; color: var(--text); }

.form-card { padding: 20px; }
.inline-form { display: grid; grid-template-columns: 1fr 1fr auto; gap: 12px; align-items: end; }
.inline-form label { margin: 0; }
.order-lookup { padding: 20px; margin-top: 18px; }
.order-lookup h2 { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

.status { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 12.5px; font-weight: 600; font-family: var(--font); font-style: normal; white-space: nowrap; background: rgba(142,165,201,.15); color: var(--muted); }
.status-new { background: rgba(255,181,71,.15); color: var(--warn); }
.status-confirmed, .status-received { background: rgba(56,212,255,.15); color: var(--cyan); }
.status-shipping, .status-repairing { background: rgba(26,125,255,.2); color: #8fc2ff; }
.status-done { background: rgba(47,224,160,.15); color: var(--ok); }
.status-cancelled { background: rgba(255,77,106,.15); color: var(--danger); }

/* ---------- Sửa chữa / liên hệ ---------- */
.service-banner { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 28px; border: 1px solid var(--line-hi); background: linear-gradient(120deg, rgba(26,125,255,.25), rgba(10,23,48,.6) 60%), url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='98' viewBox='0 0 56 98'%3E%3Cpath d='M28 66L0 50V17L28 1l28 16v33L28 66zm0 32L0 82V66l28 16 28-16v16L28 98z' fill='none' stroke='%2338d4ff' stroke-opacity='.12'/%3E%3C/svg%3E"); border-radius: var(--radius); }
.service-banner h2 { display: flex; align-items: center; gap: 10px; font-style: italic; }
.service-banner h2 .icon { color: var(--cyan); }
.service-banner p { color: #c9d8f0; margin: 0; max-width: 680px; }
.repair-layout, .contact-layout { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(320px, 1fr); gap: 20px; align-items: start; }
.service-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; margin-bottom: 20px; }
.service-item { padding: 18px; }
.service-item h3 { margin: 12px 0 6px; }
.service-item p { color: var(--muted); font-size: 14px; margin: 0; }
.steps { padding-left: 1.3em; margin: 0; display: grid; gap: 8px; }
.contact-layout { grid-template-columns: minmax(300px, 1fr) minmax(0, 1.5fr); }
.contact-card img { margin-bottom: 12px; filter: drop-shadow(0 0 16px rgba(26,125,255,.6)); }
.map-card { overflow: hidden; min-height: 420px; }
.map-card iframe { width: 100%; height: 100%; min-height: 420px; border: 0; filter: invert(.9) hue-rotate(180deg) saturate(.8); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); background: linear-gradient(180deg, rgba(10,23,48,.5), rgba(4,9,20,1)); font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1.2fr 1fr 1fr; gap: 28px; padding-top: 36px; padding-bottom: 28px; }
.footer-brand { display: flex; gap: 14px; align-items: flex-start; }
.footer-brand p { margin: 0 0 4px; }
.footer-name { font-family: var(--display); font-size: 20px; font-weight: 700; font-style: italic; color: var(--ice); }
.site-footer h3 { font-size: 15px; text-transform: uppercase; letter-spacing: .08em; color: var(--cyan); }
.footer-list { list-style: none; margin: 0 0 16px; padding: 0; display: grid; gap: 9px; }
.footer-list li { display: flex; gap: 10px; align-items: flex-start; }
.footer-list .icon { color: var(--cyan); margin-top: 2px; }
.footer-list a { color: var(--text); }
.footer-list a:hover { color: var(--cyan); }
.footer-bottom { border-top: 1px solid rgba(64,160,255,.1); padding: 14px 0; color: var(--muted); font-size: 13px; }

.float-contact { position: fixed; right: 16px; bottom: 16px; z-index: 40; display: flex; flex-direction: column; gap: 10px; }
.float-contact a { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 50%; color: #fff; font-weight: 700; font-size: 13px; box-shadow: 0 6px 20px rgba(0,0,0,.4); }
.float-zalo { background: #0068ff; }
.float-call { background: linear-gradient(135deg, var(--ok), #0fa76f); animation: ring 2.4s infinite; }
@keyframes ring { 0%, 100% { box-shadow: 0 0 0 0 rgba(47,224,160,.6); } 60% { box-shadow: 0 0 0 14px rgba(47,224,160,0); } }
@media (prefers-reduced-motion: reduce) { .float-call { animation: none; } }

.toast { position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 20px); z-index: 100; padding: 12px 20px; border: 1px solid var(--line-hi); border-radius: 10px; background: var(--panel); box-shadow: var(--glow), 0 10px 30px rgba(0,0,0,.5); max-width: calc(100vw - 32px); opacity: 0; visibility: hidden; transition: transform .25s, opacity .25s, visibility .25s; }
.toast.show { transform: translate(-50%, 0); opacity: 1; visibility: visible; }

/* Thanh thao tác đáy màn hình — chỉ hiện trên điện thoại */
.mobile-bar { display: none; }
.toast a { margin-left: 10px; font-weight: 600; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .mainnav { position: fixed; top: 0; bottom: 0; left: 0; width: min(320px, 86vw); z-index: 60; background: var(--bg-2); border-right: 1px solid var(--line-hi); transform: translateX(-100%); transition: transform .25s; overflow-y: auto; }
  .mainnav.open { transform: none; }
  .mainnav-head { display: flex; justify-content: space-between; align-items: center; padding: 12px 0; font-family: var(--display); font-size: 18px; text-transform: uppercase; }
  .mainnav-inner > ul { flex-direction: column; }
  /* Menu trượt: danh mục con thu gọn, bấm mũi tên để mở */
  .mainnav-inner > ul > li { display: flex; flex-wrap: wrap; align-items: center; border-bottom: 1px solid rgba(64,160,255,.08); }
  .mainnav-inner > ul > li > a { flex: 1; padding: 13px 8px; }
  .sub-toggle { display: grid; place-items: center; width: 44px; height: 44px; border: 0; border-radius: 8px; background: rgba(26,125,255,.08); color: var(--cyan); cursor: pointer; }
  .sub-toggle .icon { transform: rotate(90deg); transition: transform .2s; }
  .has-sub.open .sub-toggle .icon { transform: rotate(-90deg); }
  .subnav { display: none; flex-basis: 100%; position: static; opacity: 1; visibility: visible; transform: none; border: 0; box-shadow: none; background: rgba(26,125,255,.05); border-radius: 8px; padding: 4px 0 6px 30px; margin-bottom: 8px; }
  .mainnav .subnav { padding: 4px 0 6px 26px; margin: 0 0 8px; }
  .has-sub.open .subnav { display: block; }
  .subnav a { font-size: 14px; color: #c9d8f0; padding: 9px 10px; }
  .has-sub:hover .subnav { opacity: 1; visibility: visible; }
  .nav-backdrop.open { display: block; position: fixed; inset: 0; z-index: 55; background: rgba(0,0,0,.6); }
  .hero-inner { grid-template-columns: 1fr; text-align: left; gap: 16px; padding-top: 24px; padding-bottom: 28px; }
  .hero-logo { order: -1; }
  .hero-logo img { width: 160px; }
  .usp { grid-template-columns: 1fr 1fr; }
  .product-detail, .detail-grid, .cart-layout, .repair-layout, .contact-layout { grid-template-columns: 1fr; }
  .checkout { position: static; }
  .service-banner { flex-direction: column; align-items: flex-start; }
  .inline-form { grid-template-columns: 1fr; }
  .section { margin-top: 28px; }

  /* Bộ lọc & chip: mỗi nhóm 1 hàng cuộn ngang thay vì xếp nhiều dòng */
  .filters { padding: 10px 12px; gap: 8px; }
  .filter-group, .chips { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; margin-right: -12px; padding-right: 12px; }
  .chips { margin-right: -16px; padding-right: 16px; }
  .filter-group::-webkit-scrollbar, .chips::-webkit-scrollbar { display: none; }
  .filter-group a, .chips a { flex-shrink: 0; }
  .filter-label { min-width: auto; flex-shrink: 0; }

  /* Trang sản phẩm: nút mua đã có ở thanh đáy màn hình */
  .buy-box [data-add-to-cart] { display: none; }

  /* Nút nổi được thay bằng thanh đáy màn hình để không che nội dung */
  .float-contact { display: none; }
  body { padding-bottom: calc(64px + env(safe-area-inset-bottom)); }
  .toast { bottom: calc(78px + env(safe-area-inset-bottom)); }
  .mobile-bar {
    display: flex; align-items: center; gap: 4px; position: fixed; left: 0; right: 0; bottom: 0; z-index: 45;
    height: calc(62px + env(safe-area-inset-bottom)); padding: 0 6px env(safe-area-inset-bottom);
    background: rgba(6, 16, 36, .96); backdrop-filter: blur(10px); border-top: 1px solid var(--line-hi); box-shadow: 0 -8px 24px rgba(0,0,0,.45);
  }
  .mb-item { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px; padding: 6px 0; font-size: 11px; font-weight: 500; color: var(--muted); background: none; border: 0; cursor: pointer; }
  .mb-item .icon { color: var(--cyan); }
  .mb-item.active { color: var(--text); }
  .mb-call { color: var(--ok); }
  .mb-call-dot { display: grid; place-items: center; width: 48px; height: 48px; margin-top: -28px; border-radius: 50%; background: linear-gradient(135deg, var(--ok), #0fa76f); box-shadow: 0 0 0 4px var(--bg), 0 6px 18px rgba(47,224,160,.45); }
  .mb-call-dot .icon { color: #fff; }
  .mb-cart-icon { position: relative; display: inline-flex; }
  .mb-cart-icon .cart-count { top: -8px; left: 12px; }
  .is-buy { gap: 8px; padding-left: 8px; padding-right: 8px; }
  .is-buy .mb-item { flex: 0 0 44px; }
  .mb-cart, .mb-buy { flex: 1; display: flex; align-items: center; justify-content: center; gap: 6px; height: 44px; border-radius: 8px; font-weight: 700; font-size: 14px; cursor: pointer; }
  .mb-cart { background: rgba(26,125,255,.15); border: 1px solid var(--line-hi); color: var(--text); }
  .mb-buy { border: 0; color: #fff; background: linear-gradient(135deg, var(--cyan), var(--blue) 55%, var(--blue-2)); }
}
@media (max-width: 560px) {
  body { font-size: 14.5px; }
  .hero h1 { font-size: 30px; margin-top: 12px; }
  .hero-lead { font-size: 15px; }
  .hero-cta { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 18px; }
  .hero-cta .btn-lg { padding: 12px 10px; font-size: 14.5px; }
  .hero-cta.center { display: flex; }

  /* 4 cam kết thành lưới 2×2 gọn */
  .usp { gap: 8px; margin-top: 16px; }
  .usp-item { flex-direction: column; align-items: flex-start; gap: 8px; padding: 12px; }
  .usp-icon { width: 38px; height: 38px; }
  .usp-icon .icon { width: 20px; height: 20px; }
  .usp-item b { font-size: 13.5px; }
  .usp-item small { font-size: 12px; line-height: 1.4; display: block; }

  /* Danh mục: 4 cột icon nhỏ */
  .cat-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
  .cat-tile { padding: 12px 4px; gap: 6px; font-size: 11.5px; line-height: 1.3; }
  .cat-tile .icon { width: 26px; height: 26px; }

  /* Sản phẩm nổi bật: 2 hàng cuộn ngang thay vì 5 hàng dọc */
  .featured-grid { grid-template-columns: none; grid-template-rows: repeat(2, auto); grid-auto-flow: column; grid-auto-columns: 46%; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 8px; scrollbar-width: none; }
  .featured-grid > * { scroll-snap-align: start; }

  .gallery-main { aspect-ratio: 4 / 3; }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .product-row { grid-auto-columns: 46%; gap: 10px; }
  .product-body { padding: 10px; }
  .product-name { font-size: 13.5px; }
  .price { font-size: 16px; }
  .price-lg { font-size: 26px; }
  .card-actions .btn { padding: 7px 6px; font-size: 12.5px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 20px 16px; padding-top: 28px; }
  .footer-grid > :nth-child(-n+2) { grid-column: 1 / -1; }
  .footer-brand img { width: 64px; height: 64px; }
  .cart-line { grid-template-columns: auto 60px 1fr; gap: 10px; }
  .cart-thumb { width: 60px; height: 60px; }
  .cart-line-total { grid-column: 3; text-align: left; }
  .cart-tool { padding: 6px 9px; }
}

/* ==========================================================
   Giỏ hàng: báo hiệu đã có trong giỏ
   ========================================================== */
.btn.in-cart, .mb-cart.in-cart {
  background: rgba(47, 224, 160, .12); border: 1px solid rgba(47, 224, 160, .55); color: #8affd2;
  text-shadow: none; clip-path: none; border-radius: 8px;
}
.btn.in-cart:hover { border-color: var(--ok); }
.badge-incart { position: absolute; right: 10px; bottom: 10px; display: inline-flex; align-items: center; gap: 4px; padding: 3px 9px; border-radius: 20px; font-size: 12px; font-weight: 700; color: #04140d; background: var(--ok); box-shadow: 0 0 14px rgba(47, 224, 160, .5); }
.in-cart-notice { flex-basis: 100%; display: flex; align-items: center; flex-wrap: wrap; gap: 6px; margin: 4px 0 0; padding: 10px 12px; border-radius: 8px; background: rgba(47, 224, 160, .1); border: 1px solid rgba(47, 224, 160, .35); color: #8affd2; font-size: 14px; }
.in-cart-notice a { color: #fff; font-weight: 600; }
.cart-count.bump { animation: bump .45s ease; }
@keyframes bump { 30% { transform: scale(1.45); } 60% { transform: scale(.9); } }
.toast svg { vertical-align: -3px; color: var(--ok); }

/* ==========================================================
   Deal hời
   ========================================================== */
.is-deal .badge-incart { bottom: 40px; }
.badge-deal { position: absolute; top: 10px; right: 10px; display: inline-flex; align-items: center; gap: 3px; padding: 3px 8px; border-radius: 4px; font-size: 12px; font-weight: 700; color: #fff; background: linear-gradient(135deg, #ff7a45, #ff2d55); box-shadow: 0 0 14px rgba(255, 80, 60, .5); }
.product-thumb .deal-timer { position: absolute; left: 0; right: 0; bottom: 0; justify-content: center; border-radius: 0; background: rgba(4, 9, 20, .82); }
.deal-timer { display: inline-flex; align-items: center; gap: 5px; padding: 5px 10px; font-size: 12.5px; color: #ffcf9e; border-radius: 6px; background: rgba(255, 90, 60, .12); font-variant-numeric: tabular-nums; }
.deal-timer b { color: #fff; font-family: var(--display); letter-spacing: .03em; }
.deal-timer .icon { color: #ff7a45; }
.deal-timer.ended { opacity: .6; }
.is-deal { border-color: rgba(255, 122, 69, .35); }
.is-deal:hover { border-color: rgba(255, 122, 69, .7); box-shadow: 0 0 0 1px rgba(255, 122, 69, .3), 0 0 22px rgba(255, 80, 60, .3); }
.deal-section .section-head h2 .icon { color: #ff7a45; }
.deal-section .section-head::after { background: linear-gradient(90deg, #ff7a45, transparent); box-shadow: 0 0 10px #ff7a45; }
.deal-strip { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; padding: 10px 14px; margin-bottom: 10px; border-radius: var(--radius); color: #fff; background: linear-gradient(90deg, rgba(255, 90, 60, .35), rgba(255, 45, 85, .15)); border: 1px solid rgba(255, 122, 69, .5); }
.deal-strip > span:first-child { display: inline-flex; align-items: center; gap: 6px; }
.deal-strip .icon { color: #ffb36b; }
.deal-hero { padding: 24px; margin: 8px 0 20px; border-radius: var(--radius); border: 1px solid rgba(255, 122, 69, .45); background: radial-gradient(600px 200px at 0% 0%, rgba(255, 90, 60, .3), transparent 70%), rgba(10, 23, 48, .7); }
.deal-hero h1 { display: flex; align-items: center; gap: 10px; font-style: italic; text-transform: uppercase; color: #fff; }
.deal-hero h1 .icon { color: #ff7a45; filter: drop-shadow(0 0 10px rgba(255, 90, 60, .8)); }
.deal-hero p { color: #ffd9bf; margin: 0; }

/* ==========================================================
   Hàng lướt
   ========================================================== */
.badge-cond { display: inline-flex; align-items: center; gap: 4px; padding: 3px 9px; border-radius: 4px; font-size: 12px; font-weight: 700; color: #1a1300; background: linear-gradient(135deg, #ffd166, #ffb547); }
.badge-cond-card { position: absolute; top: 40px; left: 10px; }
.condition-box { display: flex; align-items: flex-start; gap: 10px; flex-wrap: wrap; padding: 10px 14px; margin-bottom: 10px; border-radius: var(--radius); border: 1px solid rgba(255, 181, 71, .45); background: rgba(255, 181, 71, .08); }
.condition-box p { margin: 0; color: #ffe2b0; font-size: 14px; }

/* ==========================================================
   Dịch vụ IT
   ========================================================== */
.section-lead { color: var(--muted); margin: -6px 0 16px; max-width: 760px; }
.svc-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; align-items: stretch; }
.svc-card { position: relative; display: flex; flex-direction: column; gap: 10px; padding: 24px 22px; }
.svc-card h3 { margin: 6px 0 0; font-size: 19px; }
.svc-card > p.muted { margin: 0; font-size: 14px; min-height: 2.8em; }
.svc-card.is-highlight { border-color: var(--cyan); box-shadow: var(--glow); }
.svc-ribbon { position: absolute; top: 16px; right: 16px; padding: 3px 10px; font-size: 12px; font-weight: 700; color: #fff; border-radius: 20px; background: linear-gradient(135deg, var(--cyan), var(--blue)); }
.svc-price { display: flex; align-items: baseline; flex-wrap: wrap; gap: 6px; margin: 4px 0; }
.svc-price small { color: var(--muted); font-size: 13px; }
.svc-price b { font-family: var(--display); font-size: 30px; color: var(--ice); text-shadow: 0 0 16px rgba(56, 212, 255, .4); }
.svc-features { list-style: none; padding: 0; margin: 4px 0 8px; display: grid; gap: 8px; flex: 1; font-size: 14px; }
.svc-features li { display: flex; gap: 8px; align-items: flex-start; }
.svc-features .icon { color: var(--ok); margin-top: 2px; }
.svc-hero { padding: 8px 0 32px; border-bottom: 1px solid var(--line); background: radial-gradient(800px 300px at 90% 0%, rgba(26, 125, 255, .25), transparent 70%); }
.svc-hero h1 { font-size: clamp(28px, 4.4vw, 46px); font-style: italic; margin-top: 14px; max-width: 900px; }
.process { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.process li { padding: 18px; display: flex; flex-direction: column; gap: 6px; }
.process p { margin: 0; font-size: 14px; }
.process-no { font-family: var(--display); font-size: 28px; font-weight: 700; color: var(--cyan); text-shadow: 0 0 14px rgba(56, 212, 255, .5); }
.svc-bottom { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(320px, 1fr); gap: 20px; align-items: start; }
.faq { display: grid; gap: 10px; }
.faq details { padding: 14px 18px; }
.faq summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 10px; }
.faq summary::after { content: '+'; color: var(--cyan); font-size: 20px; line-height: 1; }
.faq details[open] summary::after { content: '−'; }
.faq details p { margin: 10px 0 0; color: #c9d8f0; }
.svc-bottom .checkout { scroll-margin-top: 180px; }

/* ==========================================================
   PC Builder
   ========================================================== */
.builder-banner { display: flex; align-items: center; gap: 20px; padding: 22px 26px; border-radius: var(--radius); color: var(--text); border: 1px solid var(--line-hi); background: radial-gradient(500px 200px at 100% 50%, rgba(56, 212, 255, .22), transparent 70%), linear-gradient(120deg, rgba(26, 125, 255, .25), rgba(10, 23, 48, .7) 60%); transition: box-shadow .15s; }
.builder-banner:hover { color: var(--text); box-shadow: var(--glow); }
.builder-banner-icon { display: grid; place-items: center; width: 72px; height: 72px; flex-shrink: 0; color: var(--cyan); border: 1px solid var(--line-hi); background: rgba(26, 125, 255, .15); clip-path: polygon(25% 0, 75% 0, 100% 50%, 75% 100%, 25% 100%, 0 50%); }
.builder-banner-text { flex: 1; display: flex; flex-direction: column; gap: 4px; }
.builder-banner-text b { font-family: var(--display); font-size: 24px; font-style: italic; text-transform: uppercase; }
.builder-banner-text span { color: #c9d8f0; }
.builder { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 20px; align-items: start; }
.builder-slots { padding: 6px 18px; }
.slot { display: grid; grid-template-columns: 48px minmax(0, 1fr) auto; gap: 14px; align-items: center; padding: 14px 0; border-bottom: 1px solid var(--line); }
.slot:last-child { border-bottom: 0; }
.slot-icon { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 10px; color: var(--cyan); background: rgba(26, 125, 255, .1); border: 1px solid var(--line); }
.slot.filled .slot-icon { color: var(--ok); border-color: rgba(47, 224, 160, .4); background: rgba(47, 224, 160, .08); }
.slot-label { font-weight: 600; font-size: 14.5px; margin-bottom: 4px; }
.slot-label em { color: var(--danger); font-style: normal; }
.slot-item { display: flex; gap: 12px; align-items: center; }
.slot-thumb { display: grid; place-items: center; width: 56px; height: 56px; flex-shrink: 0; border-radius: 8px; overflow: hidden; color: var(--cyan); background: var(--panel-hi); }
.slot-thumb img { width: 100%; height: 100%; object-fit: contain; background: #fff; }
.slot-info { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.slot-name { color: var(--text); font-weight: 500; font-size: 14px; line-height: 1.35; }
.slot-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 6px 12px; font-size: 13px; }
.slot-meta .price { font-size: 16px; }
.slot-qty { flex-direction: row !important; align-items: center; gap: 6px !important; margin: 0 !important; font-weight: 400 !important; color: var(--muted); }
.slot-qty select { width: auto; padding: 3px 8px; }
.slot-remove { background: none; border: 0; color: var(--muted); cursor: pointer; font-size: 13px; padding: 0; }
.slot-remove:hover { color: var(--danger); }
.slot-warn { color: #ffb4c0; font-size: 13px; }
.slot-item.bad .slot-name { color: #ffb4c0; }
.builder-summary { position: sticky; top: 170px; padding: 20px; display: flex; flex-direction: column; gap: 12px; }
.builder-summary h2 { font-size: 19px; text-transform: uppercase; font-style: italic; margin: 0; }
.sum-row { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; padding-bottom: 10px; border-bottom: 1px dashed var(--line); }
.sum-row b:not(.price) { font-size: 14px; text-align: right; }
.build-checks { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; font-size: 13.5px; }
.build-checks li { padding: 8px 10px 8px 30px; border-radius: 8px; position: relative; }
.build-checks li::before { position: absolute; left: 10px; top: 8px; font-weight: 700; }
.chk-ok { background: rgba(47, 224, 160, .1); color: #8affd2; }
.chk-ok::before { content: '✓'; }
.chk-bad { background: rgba(255, 77, 106, .12); color: #ffb4c0; }
.chk-bad::before { content: '✕'; }
.chk-warn { background: rgba(255, 181, 71, .12); color: #ffd99a; }
.chk-warn::before { content: '!'; }
.chk-info { background: rgba(56, 212, 255, .08); color: #b9ecff; }
.chk-info::before { content: 'i'; font-style: italic; }
.build-actions { display: flex; gap: 8px; }
.build-actions .btn { flex: 1; }
.btn[disabled] { opacity: .45; cursor: not-allowed; filter: grayscale(.4); }
.picker { width: min(720px, calc(100vw - 24px)); max-height: min(80vh, 760px); padding: 0; color: var(--text); background: var(--bg-2); border: 1px solid var(--line-hi); border-radius: 12px; box-shadow: var(--glow), 0 30px 80px rgba(0, 0, 0, .7); }
.picker[open] { display: flex; flex-direction: column; }
.picker::backdrop { background: rgba(0, 0, 0, .7); backdrop-filter: blur(3px); }
.picker-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 14px 18px; border-bottom: 1px solid var(--line); }
.picker-head h2 { margin: 0; font-size: 18px; }
.picker-search { margin: 12px 18px 0; width: auto !important; }
.picker-toggle { margin: 10px 18px 6px !important; font-size: 13.5px; color: var(--muted); }
.picker-list { overflow-y: auto; padding: 6px 12px 14px; display: grid; gap: 6px; }
.pick { display: grid; grid-template-columns: 56px minmax(0, 1fr) auto; gap: 12px; align-items: center; width: 100%; padding: 10px; text-align: left; border-radius: 10px; color: var(--text); background: rgba(10, 23, 48, .7); border: 1px solid var(--line); cursor: pointer; }
.pick:hover:not([disabled]) { border-color: var(--cyan); box-shadow: var(--glow); }
.pick.current { border-color: var(--ok); }
.pick.bad { opacity: .55; cursor: not-allowed; }
.pick-info { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.pick-name { font-weight: 600; font-size: 14px; }
.pick-meta { font-size: 12.5px; color: var(--muted); }
.pick-empty { padding: 20px 8px; text-align: center; }

@media (max-width: 900px) {
  .svc-grid { grid-template-columns: 1fr; }
  .process { grid-template-columns: 1fr 1fr; }
  .svc-bottom, .builder { grid-template-columns: 1fr; }
  .builder-summary { position: static; }
  .builder-banner { flex-direction: column; align-items: flex-start; text-align: left; }
  .builder-banner .btn { align-self: stretch; }
  .nav-sep { margin-left: 0; }
}
@media (max-width: 560px) {
  .builder-slots { padding: 2px 12px; }
  .slot { grid-template-columns: 40px minmax(0, 1fr); gap: 10px; }
  .slot-icon { width: 40px; height: 40px; }
  .slot > .btn { grid-column: 2; justify-self: start; }
  .slot-thumb { width: 46px; height: 46px; }
  .pick { grid-template-columns: 46px minmax(0, 1fr); }
  .pick .price { grid-column: 2; }
  .process { grid-template-columns: 1fr; }
  .svc-price b { font-size: 26px; }
  .badge-cond-card { top: 38px; }
}

/* ==========================================================
   Trợ năng
   ========================================================== */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: 12px; top: -60px; z-index: 200; padding: 10px 16px; border-radius: 8px; background: var(--blue); color: #fff; font-weight: 700; transition: top .15s; }
.skip-link:focus { top: 12px; color: #fff; }

/* ==========================================================
   Banner trang chủ
   ========================================================== */
.hero-slider { padding: 22px 0 10px; border-bottom: 0; }
.hero-slider::before { display: none; }
.slides { position: relative; min-height: 360px; }
.slide { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); align-items: center; gap: 24px; padding: 34px 40px; border-radius: 18px; border: 1px solid var(--line-hi); overflow: hidden; position: absolute; inset: 0; opacity: 0; visibility: hidden; transform: translateX(24px); transition: opacity .45s, transform .45s, visibility .45s; }
.slide.active { position: relative; opacity: 1; visibility: visible; transform: none; }
.theme-blue { background: radial-gradient(500px 300px at 85% 50%, rgba(56,212,255,.35), transparent 70%), linear-gradient(120deg, #0f2a5c, #071226 70%); }
.theme-hot { background: radial-gradient(500px 300px at 85% 50%, rgba(255,122,69,.38), transparent 70%), linear-gradient(120deg, #3a1020, #120914 70%); border-color: rgba(255,122,69,.5); }
.theme-green { background: radial-gradient(500px 300px at 85% 50%, rgba(47,224,160,.3), transparent 70%), linear-gradient(120deg, #0b3a3a, #061420 70%); border-color: rgba(47,224,160,.45); }
.slide-badge { display: inline-block; padding: 4px 12px; border-radius: 4px; font-family: var(--display); font-weight: 700; font-size: 14px; letter-spacing: .08em; text-transform: uppercase; color: #fff; background: linear-gradient(135deg, var(--cyan), var(--blue)); }
.theme-hot .slide-badge { background: linear-gradient(135deg, #ff7a45, #ff2d55); }
.theme-green .slide-badge { background: linear-gradient(135deg, #2fe0a0, #0fa76f); color: #04140d; }
.slide-text h2 { font-size: clamp(30px, 4.2vw, 50px); font-style: italic; text-transform: uppercase; margin: 14px 0 10px; line-height: 1.05; }
.slide-text p { color: #c9d8f0; font-size: 17px; max-width: 520px; }
.slide-img { display: grid; place-items: center; height: 300px; border-radius: 16px; background: #fff; box-shadow: 0 20px 50px rgba(0,0,0,.45), 0 0 40px rgba(56,212,255,.25); }
.slide-img { overflow: hidden; }
.slide-img img { width: auto; height: auto; max-width: 86%; max-height: 86%; object-fit: contain; }
.slider-nav { display: flex; align-items: center; justify-content: center; gap: 12px; margin-top: 12px; }
.slider-arrow { width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--line-hi); background: rgba(26,125,255,.12); color: var(--text); font-size: 22px; line-height: 1; cursor: pointer; }
.slider-dots { display: flex; gap: 8px; }
.slider-dots button { width: 10px; height: 10px; padding: 0; border-radius: 10px; border: 0; background: rgba(142,165,201,.4); cursor: pointer; transition: width .25s, background .25s; }
.slider-dots button[aria-current=true] { width: 28px; background: var(--cyan); }

/* ==========================================================
   Đánh giá, so sánh, trả góp
   ========================================================== */
.stars { display: inline-flex; align-items: center; gap: 4px; }
.stars-bg { position: relative; display: inline-block; color: rgba(142,165,201,.35); letter-spacing: 1px; line-height: 1; }
.stars-fg { position: absolute; left: 0; top: 0; overflow: hidden; white-space: nowrap; color: #ffc53d; }
.stars-count { font-size: 12px; color: var(--muted); }
.pd-rating { display: inline-flex; align-items: center; gap: 6px; margin: -4px 0 10px; color: var(--muted); font-size: 14px; }
.card-actions { display: flex; gap: 6px; }
/* flex-basis 0 + min-width 0: nút Thêm vào giỏ giữ nguyên bề rộng khi đổi nhãn "Trong giỏ (n)", không đẩy nút so sánh */
.card-actions .btn:first-child { flex: 1 1 0; min-width: 0; overflow: hidden; white-space: nowrap; }
/* Nút so sánh trên thẻ: ô vuông chỉ có biểu tượng (không kéo rộng 100% như nút Thêm vào giỏ) */
.card-actions .cmp-btn { flex: 0 0 auto; width: auto; min-width: 38px; padding: 0 10px; justify-content: center; }
@media (max-width: 560px) {
  /* Thẻ 2 cột trên điện thoại: bỏ biểu tượng giỏ để nút so sánh không bị đẩy tràn khỏi thẻ */
  .card-actions { gap: 5px; }
  .card-actions .btn:first-child { min-width: 0; }
  .card-actions .btn-primary .icon { display: none; }
  .card-actions .in-cart svg { display: none; }
  .card-actions .cmp-btn { min-width: 34px; padding: 0 8px; }
}
[data-compare].on { color: #8affd2; border-color: rgba(47,224,160,.6); background: rgba(47,224,160,.12); }
.pd-tools { display: flex; align-items: center; flex-wrap: wrap; gap: 10px 16px; margin-top: 14px; }
.pd-tools .call-line { margin: 0; }

/* ---- Trả góp: nút trên trang sản phẩm ---- */
.inst-cta { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 10px; margin-top: 14px; }
.inst-cta a { display: flex; align-items: center; gap: 12px; padding: 11px 16px; border-radius: var(--radius); color: var(--text); transition: border-color .15s, transform .15s, box-shadow .15s; }
.inst-cta a:hover { transform: translateY(-1px); }
.inst-cta span { display: flex; flex-direction: column; line-height: 1.35; min-width: 0; }
.inst-cta span > b { font-size: 16px; color: #fff; }
.inst-cta small { color: var(--muted); font-size: 13px; }
.inst-cta-main { background: linear-gradient(135deg, rgba(47,224,160,.16), rgba(26,125,255,.12)); border: 1px solid rgba(47,224,160,.45); }
.inst-cta-main:hover { border-color: #5ff0bd; box-shadow: 0 0 18px rgba(47,224,160,.25); }
.inst-cta-main .icon { color: #5ff0bd; flex: none; }
.inst-cta-main small b { color: #8affd2; }
.inst-cta-card { background: rgba(26,125,255,.08); border: 1px solid var(--line-hi); }
.inst-cta-card:hover { border-color: var(--cyan); }
.inst-cta-card .icon { color: var(--cyan); flex: none; }
.inst-cta-card span > b { font-size: 14.5px; }

/* ---- Trả góp: trang tính & đăng ký ---- */
.inst-layout { display: grid; grid-template-columns: 320px minmax(0, 1fr); gap: 20px; align-items: start; }
.inst-product { padding: 16px; position: sticky; top: 160px; }
.inst-product-img { display: grid; place-items: center; aspect-ratio: 4 / 3; border-radius: 10px; background: #fff; overflow: hidden; }
.inst-product-img img { max-width: 90%; max-height: 90%; width: auto; height: auto; object-fit: contain; }
.inst-product-name { display: block; margin: 12px 0 6px; color: var(--text); font-weight: 600; }
.inst-product .deal-timer { margin-top: 8px; }
.inst-perks { list-style: none; padding: 0; margin: 12px 0 0; display: grid; gap: 6px; font-size: 13.5px; color: #c9d8f0; }
.inst-perks li { display: flex; gap: 8px; align-items: flex-start; }
.inst-perks .icon { color: var(--ok); flex: none; margin-top: 2px; }
.inst-form { padding: 20px; }
.inst-tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.inst-tab { position: relative; display: flex; align-items: center; gap: 12px; margin: 0; padding: 14px 16px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(10,23,48,.6); cursor: pointer; transition: border-color .15s, background .15s; }
.inst-tab input, .inst-opt input { position: absolute; opacity: 0; pointer-events: none; }
.inst-tab > span { display: flex; flex-direction: column; line-height: 1.35; }
.inst-tab b { font-size: 15.5px; color: #fff; }
.inst-tab small { color: var(--muted); font-size: 12.5px; }
.inst-tab .icon { color: var(--muted); flex: none; }
.inst-tab:has(input:checked) { border-color: var(--cyan); background: rgba(26,125,255,.14); box-shadow: inset 0 0 0 1px var(--cyan), 0 0 18px rgba(56,212,255,.15); }
.inst-tab:has(input:checked) .icon { color: var(--cyan); }
.inst-tab:has(input:focus-visible), .inst-opt:has(input:focus-visible) span { outline: 2px solid var(--cyan); outline-offset: 2px; }
.inst-step { display: flex; align-items: center; gap: 8px; margin: 18px 0 8px; font-weight: 600; }
.inst-step span { display: grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; font-size: 12.5px; color: #fff; background: linear-gradient(135deg, var(--cyan), var(--blue)); }
.inst-pick { display: flex; flex-wrap: wrap; gap: 8px; }
.inst-opt { position: relative; margin: 0; }
.inst-opt span { display: inline-flex; flex-direction: column; align-items: center; min-width: 64px; padding: 8px 14px; border: 1px solid var(--line); border-radius: 10px; background: rgba(10,23,48,.6); font-size: 14px; line-height: 1.3; text-align: center; cursor: pointer; transition: border-color .15s, background .15s; }
.inst-opt span:hover { border-color: var(--line-hi); }
.inst-opt span small { color: var(--muted); font-size: 11.5px; }
.inst-opt:has(input:checked) span { border-color: var(--cyan); background: rgba(26,125,255,.2); color: #fff; box-shadow: 0 0 12px rgba(56,212,255,.25); }
.inst-opt:has(input:checked) span small { color: #bfe9ff; }
.inst-brand span, span.inst-brand { flex-direction: row; gap: 7px; font-weight: 600; }
.inst-brand span::before, span.inst-brand::before { content: ''; width: 9px; height: 9px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 0 2px rgba(255,255,255,.85); flex: none; }
/* Đổi hình thức trả góp: ẩn phần của hình thức còn lại */
.inst-form:has(input[name=method][value=card]:checked) :is([data-panel=finance], [data-only=finance]),
.inst-form:has(input[name=method][value=finance]:checked) :is([data-panel=card], [data-only=card]) { display: none; }
.inst-sum { margin: 20px 0 8px; padding: 4px 16px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(26,125,255,.08); }
.inst-sum > div { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; padding: 9px 0; border-bottom: 1px dashed var(--line); }
.inst-sum > div:last-child { border-bottom: 0; }
.inst-sum dt { color: var(--muted); font-size: 14px; }
.inst-sum dd { margin: 0; font-weight: 600; text-align: right; font-variant-numeric: tabular-nums; }
.inst-monthly .price { font-size: 24px; }
.inst-monthly small { margin-left: 6px; color: var(--muted); font-weight: 400; }
.inst-note { margin: 0 0 14px; }
.inst-docs { margin: 0 0 6px; padding: 12px 14px; border: 1px solid rgba(47,224,160,.3); border-radius: var(--radius); background: rgba(47,224,160,.07); }
.inst-docs > b { display: flex; align-items: center; gap: 8px; color: #8affd2; }
.inst-docs ul { margin: 8px 0 0; padding-left: 20px; font-size: 14px; color: #c9d8f0; }
.inst-h2 { margin: 22px 0 12px; font-size: 20px; scroll-margin-top: 170px; }
.inst-process { margin-top: 24px; }
/* Trang giới thiệu /tra-gop */
.inst-methods { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.inst-method { padding: 22px; }
.inst-method h3 { margin: 12px 0 8px; font-size: 20px; }
.inst-method ul { margin: 0 0 14px; padding-left: 18px; color: #c9d8f0; display: grid; gap: 4px; }
.inst-method-ico { display: grid; place-items: center; width: 56px; height: 56px; border-radius: 14px; color: #fff; background: linear-gradient(135deg, var(--cyan), var(--blue)); box-shadow: 0 0 22px rgba(56,212,255,.35); }
.inst-partners-label { margin: 0 0 8px; color: var(--muted); font-size: 12.5px; letter-spacing: .1em; text-transform: uppercase; }
.inst-partners { display: flex; flex-wrap: wrap; gap: 8px; }
.inst-partners span { display: inline-flex; align-items: center; padding: 6px 12px; border: 1px solid var(--line); border-radius: 20px; background: rgba(10,23,48,.6); font-size: 13.5px; }
.reviews { margin-top: 20px; }
.reviews-layout { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(280px, 1fr); gap: 24px; }
.rv-summary { display: flex; align-items: center; gap: 14px; margin-bottom: 10px; }
.rv-avg { font-family: var(--display); font-size: 44px; color: #ffc53d; line-height: 1; }
.rv-summary > div { display: flex; flex-direction: column; gap: 2px; }
.rv-bars { display: grid; gap: 4px; max-width: 320px; margin-bottom: 16px; }
.rv-bar { display: grid; grid-template-columns: 30px 1fr 24px; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
.rv-bar > i { height: 6px; border-radius: 6px; background: rgba(142,165,201,.2); overflow: hidden; }
.rv-bar > i > i { display: block; height: 100%; background: #ffc53d; }
.rv-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.rv-list li { padding: 12px 14px; border-radius: 10px; background: rgba(10,23,48,.6); border: 1px solid var(--line); }
.rv-head { display: flex; align-items: center; flex-wrap: wrap; gap: 6px 12px; margin-bottom: 4px; }
.rv-list p { margin: 0; color: #d3e0f5; }
.rv-reply { margin-top: 8px !important; padding: 8px 10px; border-left: 3px solid var(--cyan); background: rgba(26,125,255,.08); font-size: 14px; }
.rv-form h3 { margin-bottom: 8px; }
.rv-stars { display: inline-flex; flex-direction: row-reverse; justify-content: flex-end; gap: 2px; border: 0; padding: 0; margin: 0 0 10px; }
.rv-stars input { position: absolute; opacity: 0; width: 0; height: 0; }
.rv-stars label { flex-direction: row; margin: 0; font-size: 30px; line-height: 1; color: rgba(142,165,201,.35); cursor: pointer; }
.rv-stars input:checked ~ label, .rv-stars label:hover, .rv-stars label:hover ~ label { color: #ffc53d; }
.rv-stars input:focus-visible + label { outline: 2px solid var(--cyan); border-radius: 4px; }
.cmp-bar { position: fixed; left: 50%; bottom: 16px; transform: translateX(-50%); z-index: 65; display: flex; align-items: center; gap: 12px; padding: 8px 10px 8px 12px; border-radius: 14px; background: var(--panel); border: 1px solid var(--line-hi); box-shadow: var(--glow), 0 14px 40px rgba(0,0,0,.6); max-width: calc(100vw - 24px); }
.cmp-thumbs { display: flex; gap: 6px; }
.cmp-thumbs span { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 6px; background: #fff; overflow: hidden; color: var(--blue); }
.cmp-thumbs img { width: 100%; height: 100%; object-fit: contain; }
.cmp-bar b { font-size: 13.5px; white-space: nowrap; }
.cmp-bar .btn { white-space: nowrap; }
.cmp-bar a[aria-disabled=true] { opacity: .55; pointer-events: auto; }
.cmp-clear { width: 30px; height: 30px; border-radius: 50%; border: 0; background: rgba(255,255,255,.06); color: var(--muted); cursor: pointer; }
.cmp-wrap { overflow-x: auto; }
.cmp-table { width: 100%; border-collapse: collapse; min-width: 640px; font-size: 14px; }
.cmp-table th, .cmp-table td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.cmp-table tbody th { width: 160px; color: var(--muted); font-weight: 500; }
.cmp-table thead th { position: relative; vertical-align: bottom; width: 25%; }
.cmp-table tr.diff td { background: rgba(255,197,61,.07); }
.cmp-table tr.diff th { color: #ffd99a; }
.cmp-img { display: grid; place-items: center; height: 130px; border-radius: 10px; background: #fff; margin-bottom: 8px; overflow: hidden; }
/* Ảnh trong khung lưới cố định chiều cao: dùng max-* thay vì % chiều cao để không tràn/cắt */
.cmp-img img, .ai-product-img img, .ss-img img, .slot-thumb img, .cart-thumb img { width: auto; height: auto; max-width: 90%; max-height: 90%; object-fit: contain; }
.cmp-img .img-placeholder { background: var(--panel-hi); }
.cmp-name { color: var(--text); font-weight: 600; font-size: 14px; }
.cmp-remove { position: absolute; top: 6px; right: 6px; z-index: 2; width: 26px; height: 26px; border-radius: 50%; border: 0; background: rgba(4,9,20,.75); color: #fff; cursor: pointer; }
.cmp-best { color: var(--ok) !important; }
.cmp-tag { display: inline-block; margin-left: 6px; padding: 1px 8px; border-radius: 10px; font-size: 11.5px; font-weight: 700; color: #04140d; background: var(--ok); }

/* ==========================================================
   Bộ lọc giá, địa chỉ, VietQR
   ========================================================== */
.price-range { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 12px; margin: 0; }
.price-range .filter-label { margin: 0; }
.pr-slider { position: relative; width: min(320px, 100%); height: 28px; --lo: 0%; --hi: 100%; }
.pr-slider::before { content: ''; position: absolute; left: 0; right: 0; top: 12px; height: 4px; border-radius: 4px; background: linear-gradient(90deg, rgba(142,165,201,.25) var(--lo), var(--cyan) var(--lo), var(--cyan) var(--hi), rgba(142,165,201,.25) var(--hi)); }
.pr-slider input[type=range] { position: absolute; inset: 0; width: 100%; margin: 0; background: none; pointer-events: none; -webkit-appearance: none; appearance: none; border: 0 !important; padding: 0 !important; box-shadow: none !important; }
.pr-slider input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; pointer-events: auto; width: 20px; height: 20px; border-radius: 50%; background: #fff; border: 3px solid var(--blue); cursor: pointer; }
.pr-slider input[type=range]::-moz-range-thumb { pointer-events: auto; width: 16px; height: 16px; border-radius: 50%; background: #fff; border: 3px solid var(--blue); cursor: pointer; }
.price-range output { font-size: 13.5px; font-weight: 600; color: var(--ice); min-width: 130px; }
.addr-fields { margin-bottom: 12px; }
.addr-fields .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.addr-fields label { margin-bottom: 10px; }
.addr-fields p { margin: -4px 0 0; }
.vietqr { display: flex; flex-direction: column; align-items: center; gap: 8px; margin: 6px 0 12px; }
.vietqr svg { width: 220px; height: 220px; border-radius: 12px; background: #fff; padding: 6px; }
.vietqr span { font-size: 13px; color: var(--muted); text-align: center; }

/* ==========================================================
   Giới thiệu, 404
   ========================================================== */
.about-hero { display: grid; grid-template-columns: auto 1fr; gap: 28px; align-items: center; padding: 28px; }
.about-hero img { filter: drop-shadow(0 0 30px rgba(26,125,255,.6)); }
.about-hero h1 { font-style: italic; margin: 12px 0; }
.about-perks { max-width: 760px; }
.search-404 { max-width: 460px; margin: 12px auto 14px; }
.center-chips { justify-content: center; }

/* ==========================================================
   Gợi ý tìm kiếm
   ========================================================== */
.search { position: relative; overflow: visible; }
.search input { border-radius: 8px 0 0 8px; }
.search button[type=submit] { border-radius: 0 7px 7px 0; }
.search-suggest { position: absolute; top: calc(100% + 6px); left: 0; right: 0; z-index: 80; max-height: min(70vh, 520px); overflow-y: auto; padding: 6px; border-radius: 12px; background: var(--panel); border: 1px solid var(--line-hi); box-shadow: var(--glow), 0 20px 50px rgba(0,0,0,.6); }
.ss-item { display: grid; grid-template-columns: 48px minmax(0, 1fr) auto; gap: 10px; align-items: center; padding: 7px 8px; border-radius: 8px; color: var(--text); }
.ss-item:hover, .ss-item[aria-selected=true] { background: rgba(26,125,255,.18); color: #fff; }
.ss-img { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 6px; overflow: hidden; background: #fff; color: var(--blue); }
.ss-img img { width: 100%; height: 100%; object-fit: contain; }
.ss-name { font-size: 14px; line-height: 1.35; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.ss-name mark, .ss-cat mark { background: none; color: var(--cyan); font-weight: 700; }
.ss-price { display: flex; flex-direction: column; align-items: flex-end; font-family: var(--display); font-weight: 700; color: var(--ice); font-size: 14.5px; white-space: nowrap; }
.ss-price s { font-family: var(--font); font-weight: 400; font-size: 12px; color: var(--muted); }
.ss-cat { grid-template-columns: auto 1fr; font-weight: 600; }
.ss-cat span { font-size: 11.5px; font-weight: 600; padding: 2px 8px; border-radius: 10px; color: var(--cyan); background: rgba(56,212,255,.12); }
.ss-all { grid-template-columns: 1fr; justify-items: center; margin-top: 4px; color: var(--cyan); font-weight: 600; border-top: 1px solid var(--line); border-radius: 0 0 8px 8px; }
.ss-empty { padding: 14px; font-size: 14px; color: var(--muted); text-align: center; }
.ss-empty button { background: none; border: 0; padding: 0; color: var(--cyan); cursor: pointer; text-decoration: underline; }

/* ==========================================================
   Tin tức
   ========================================================== */
.news-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.news-card { display: flex; flex-direction: column; overflow: hidden; transition: border-color .15s, box-shadow .15s; }
.news-card:hover { border-color: var(--line-hi); box-shadow: var(--glow); }
.news-cover { position: relative; display: grid; place-items: center; aspect-ratio: 16 / 7; color: var(--cyan); background: radial-gradient(circle at 70% 30%, rgba(56,212,255,.3), transparent 60%), linear-gradient(135deg, #12306a, #061024); border-bottom: 1px solid var(--line); }
.news-cover .icon { filter: drop-shadow(0 0 14px rgba(56,212,255,.7)); }
.news-src { position: absolute; left: 10px; bottom: 10px; padding: 2px 10px; border-radius: 20px; font-size: 12px; font-weight: 600; color: var(--text); background: rgba(4,9,20,.7); border: 1px solid var(--line); }
.news-body { padding: 14px 16px 16px; display: flex; flex-direction: column; gap: 6px; }
.news-body h3 { font-family: var(--font); font-size: 16px; line-height: 1.4; margin: 0; }
.news-body h3 a { color: var(--text); }
.news-body h3 a:hover { color: var(--ice); }
.news-body p { margin: 0; font-size: 14px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.container.narrow-wide { max-width: 980px; }
.news-article h1 { font-family: var(--font); font-weight: 700; font-size: clamp(24px, 3vw, 32px); line-height: 1.3; margin: 10px 0 12px; }
.news-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; }
.news-tag { display: inline-flex; align-items: center; gap: 5px; padding: 3px 10px; border-radius: 20px; font-size: 12.5px; font-weight: 600; color: var(--cyan); background: rgba(56,212,255,.1); border: 1px solid var(--line-hi); }
.news-lead { font-size: 17px; font-weight: 500; color: #dbe8fb; border-left: 3px solid var(--cyan); padding-left: 14px; }
.news-article .prose { font-size: 16px; line-height: 1.75; }
.news-article .prose h2 { font-size: 20px; color: var(--ice); }
.news-tags { margin: 18px 0 0; }
.news-source { margin-top: 22px; padding: 14px 16px; border-radius: var(--radius); background: rgba(26,125,255,.08); border: 1px dashed var(--line-hi); font-size: 14px; line-height: 1.6; }
.row-actions { display: flex; flex-wrap: wrap; gap: 8px; }

/* ==========================================================
   Lễ tân AI
   ========================================================== */
.ai-widget { position: fixed; right: 16px; bottom: 140px; z-index: 70; }
.ai-avatar { display: block; width: 100%; height: 100%; }
.ai-avatar .ai-eyes { transform-box: fill-box; transform-origin: center; animation: ai-blink 5s infinite; }
.ai-avatar .ai-mouth-talk { opacity: 0; transform-box: fill-box; transform-origin: center; }
.talking .ai-avatar .ai-mouth-smile { opacity: 0; }
.talking .ai-avatar .ai-mouth-talk { opacity: 1; animation: ai-talk .22s ease-in-out infinite alternate; }
@keyframes ai-blink { 0%, 94%, 100% { transform: scaleY(1); } 96% { transform: scaleY(.1); } }
@keyframes ai-talk { from { transform: scaleY(.35); } to { transform: scaleY(1.1); } }

.ai-launcher { position: relative; display: block; width: 68px; height: 68px; padding: 0; border: 0; border-radius: 50%; background: none; cursor: pointer; box-shadow: 0 0 0 3px rgba(56,212,255,.25), 0 0 28px rgba(26,125,255,.6), 0 10px 24px rgba(0,0,0,.5); animation: ai-float 4s ease-in-out infinite; }
.ai-launcher::after { content: ''; position: absolute; inset: -6px; border-radius: 50%; border: 2px solid rgba(56,212,255,.55); animation: ai-ring 2.6s ease-out infinite; }
.ai-online { position: absolute; right: 2px; bottom: 4px; width: 14px; height: 14px; border-radius: 50%; background: var(--ok); border: 2px solid var(--bg); }
.open .ai-launcher { animation: none; }
@keyframes ai-float { 50% { transform: translateY(-6px); } }
@keyframes ai-ring { 0% { transform: scale(.95); opacity: 1; } 100% { transform: scale(1.35); opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .ai-launcher, .ai-launcher::after, .ai-avatar .ai-eyes { animation: none; } }

.ai-cta { position: absolute; right: 82px; bottom: 6px; width: 250px; padding: 12px 30px 12px 14px; border-radius: 14px 14px 4px 14px; color: var(--text); background: linear-gradient(135deg, #0f2a57, #0a1730); border: 1px solid var(--line-hi); box-shadow: var(--glow), 0 12px 30px rgba(0,0,0,.5); animation: ai-pop .35s ease-out; }
.ai-cta-body { display: flex; flex-direction: column; gap: 3px; padding: 0; text-align: left; background: none; border: 0; color: inherit; cursor: pointer; }
.ai-cta-body b { font-size: 14.5px; color: #fff; }
.ai-cta-body span { font-size: 13px; color: #b9d3f5; }
.ai-cta-close { position: absolute; top: 6px; right: 6px; display: grid; place-items: center; width: 22px; height: 22px; padding: 0; border: 0; border-radius: 50%; color: var(--muted); background: rgba(255,255,255,.06); cursor: pointer; }
@keyframes ai-pop { from { opacity: 0; transform: translateY(8px) scale(.96); } }

.ai-panel { position: fixed; right: 16px; bottom: 16px; z-index: 90; display: flex; flex-direction: column; width: 390px; height: min(640px, calc(100vh - 32px)); overflow: hidden; border-radius: 16px; background: var(--bg-2); border: 1px solid var(--line-hi); box-shadow: var(--glow), 0 30px 80px rgba(0,0,0,.7); animation: ai-pop .25s ease-out; }
.ai-panel[hidden] { display: none; }
.ai-head { display: flex; align-items: center; gap: 10px; padding: 10px 10px 10px 12px; background: linear-gradient(120deg, rgba(26,125,255,.35), rgba(10,23,48,.9)); border-bottom: 1px solid var(--line); }
.ai-head-avatar { width: 48px; height: 48px; flex-shrink: 0; }
.ai-head-text { flex: 1; display: flex; flex-direction: column; line-height: 1.25; }
.ai-head-text b { font-family: var(--display); font-size: 18px; }
.ai-head-text small { color: #b9d3f5; font-size: 12.5px; }
.ai-head-text i { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--ok); margin-right: 3px; }
.ai-icon-btn { display: grid; place-items: center; width: 38px; height: 38px; padding: 0; border: 0; border-radius: 10px; color: var(--text); background: rgba(255,255,255,.06); cursor: pointer; flex-shrink: 0; }
.ai-icon-btn:hover { background: rgba(56,212,255,.15); }
[data-ai-voice] .ai-mute { display: none; }
[data-ai-voice].off .ai-mute { display: inline; }
[data-ai-voice].off .ai-wave { display: none; }
[data-ai-voice].off { color: var(--muted); }
.ai-body { flex: 1; overflow-y: auto; padding: 14px 12px; display: flex; flex-direction: column; gap: 10px; overscroll-behavior: contain; }
.ai-msg { display: flex; }
.ai-msg.me { justify-content: flex-end; }
.ai-bubble { max-width: 88%; padding: 10px 13px; border-radius: 14px; font-size: 14.5px; line-height: 1.55; }
.ai-bubble p { margin: 0 0 6px; }
.ai-bubble p:last-child { margin: 0; }
.ai-bubble ul { margin: 4px 0 6px; padding-left: 18px; }
.ai-bubble li { margin-bottom: 4px; }
.ai-bubble a { color: var(--ice); text-decoration: underline; text-underline-offset: 2px; word-break: break-all; }
.bot .ai-bubble { background: rgba(26,125,255,.12); border: 1px solid var(--line); border-bottom-left-radius: 4px; }
.me .ai-bubble { background: linear-gradient(135deg, var(--cyan), var(--blue)); color: #fff; border-bottom-right-radius: 4px; }
.ai-typing { display: inline-flex; gap: 4px; padding: 4px 0; }
.ai-typing i { width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); animation: ai-dot 1s infinite; }
.ai-typing i:nth-child(2) { animation-delay: .15s; }
.ai-typing i:nth-child(3) { animation-delay: .3s; }
@keyframes ai-dot { 0%, 60%, 100% { opacity: .3; transform: translateY(0); } 30% { opacity: 1; transform: translateY(-4px); } }
.ai-products { display: grid; gap: 8px; margin-top: 10px; }
.ai-product { display: grid; grid-template-columns: 64px 1fr; gap: 10px; padding: 8px; border-radius: 10px; background: rgba(4,9,20,.55); border: 1px solid var(--line); }
.ai-product-img { display: grid; place-items: center; width: 64px; height: 64px; border-radius: 8px; overflow: hidden; background: #fff; color: var(--blue); font-weight: 700; }
.ai-product-img img { width: 100%; height: 100%; object-fit: contain; }
.ai-product-info { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.ai-product-name { color: var(--text) !important; text-decoration: none !important; font-weight: 600; font-size: 13.5px; line-height: 1.35; word-break: normal !important; }
.ai-product .price { font-size: 15px; }
.ai-product .btn { align-self: flex-start; padding: 6px 10px; font-size: 12.5px; }
.ai-chips { display: flex; gap: 6px; padding: 8px 12px; overflow-x: auto; scrollbar-width: none; border-top: 1px solid var(--line); }
.ai-chips::-webkit-scrollbar { display: none; }
.ai-chips button { flex-shrink: 0; padding: 7px 12px; border-radius: 20px; font-size: 13px; color: var(--text); background: rgba(26,125,255,.1); border: 1px solid var(--line-hi); cursor: pointer; white-space: nowrap; }
.ai-chips button:hover { border-color: var(--cyan); }
.ai-input { display: flex; align-items: center; gap: 6px; padding: 8px 10px; border-top: 1px solid var(--line); }
.ai-input input { flex: 1; min-width: 0; border-radius: 22px !important; padding: 10px 14px !important; }
.ai-send { display: grid; place-items: center; width: 42px; height: 42px; border: 0; border-radius: 50%; color: #fff; background: linear-gradient(135deg, var(--cyan), var(--blue)); cursor: pointer; flex-shrink: 0; }
[data-ai-mic].rec { color: #fff; background: var(--danger); animation: ai-ring-btn 1s infinite; }
@keyframes ai-ring-btn { 50% { box-shadow: 0 0 0 6px rgba(255,77,106,.25); } }
.ai-note { margin: 0; padding: 0 12px 8px; font-size: 11px; color: var(--muted); text-align: center; }
.ai-callback { display: flex; flex-direction: column; gap: 8px; }
.ai-callback input { padding: 8px 10px !important; }
.ai-cb-msg { color: #ffb4c0; }

@media (max-width: 900px) {
  .ai-widget { right: 12px; bottom: calc(76px + env(safe-area-inset-bottom)); }
  .ai-launcher { width: 58px; height: 58px; }
  .ai-cta { right: 70px; width: min(240px, calc(100vw - 100px)); }
  /* Thanh so sánh đang hiện ở đáy: đẩy Lễ tân AI lên trên để không che nút So sánh */
  body:has(.cmp-bar:not([hidden])) .ai-widget { bottom: calc(142px + env(safe-area-inset-bottom)); }
  .ai-panel { inset: 0; width: auto; height: auto; max-height: none; border-radius: 0; border: 0; padding-bottom: env(safe-area-inset-bottom); }
  html.ai-lock, html.ai-lock body { overflow: hidden; }
  .ai-bubble { max-width: 92%; }
}

/* ==========================================================
   Trang quản trị
   ========================================================== */
body.admin { background-attachment: scroll; }
.admin-shell { display: grid; grid-template-columns: 230px 1fr; min-height: 100vh; }
.admin-side { position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; gap: 16px; padding: 18px 14px; background: var(--bg-2); border-right: 1px solid var(--line); }
.admin-side .brand-name { font-size: 18px; }
.admin-side nav { display: flex; flex-direction: column; gap: 2px; }
.admin-side nav a { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: 8px; color: var(--text); }
.admin-side nav a .icon { color: var(--cyan); }
.admin-side nav a:hover { background: rgba(26,125,255,.1); }
.admin-side nav a.active { background: linear-gradient(135deg, rgba(56,212,255,.25), rgba(26,125,255,.25)); box-shadow: inset 2px 0 0 var(--cyan); }
.admin-side-foot { margin-top: auto; display: flex; flex-direction: column; gap: 8px; font-size: 14px; }
.admin-main { padding: 24px 28px 60px; min-width: 0; }
.admin-title { font-size: 26px; }
.admin-h2 { font-size: 18px; margin-top: 28px; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 12px; }
.stat { padding: 16px; color: var(--text); }
.stat small { color: var(--muted); display: block; }
.stat b { font-family: var(--display); font-size: 28px; color: var(--ice); }
a.stat:hover { box-shadow: var(--glow); color: var(--text); }
.toolbar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 14px; }
.toolbar input, .toolbar select { width: auto; min-width: 200px; }
.table-wrap { overflow-x: auto; }
.admin-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.admin-table th, .admin-table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: middle; }
.admin-table th.num, .admin-table td.num { text-align: right; }
.admin-table thead th { font-size: 12.5px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); font-weight: 600; }
.admin-table tbody tr:hover { background: rgba(26,125,255,.06); }
.thumb-cell { width: 56px; }
.thumb-cell img, .thumb-empty { width: 44px; height: 44px; object-fit: contain; background: #fff; border-radius: 6px; display: block; }
.thumb-empty { background: var(--panel-hi); }
.pad { padding: 18px; }
.admin-cols { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 18px; align-items: start; }
.admin-side-col { display: grid; gap: 14px; position: sticky; top: 16px; }
.admin-side-col .btn + .btn { margin-top: 8px; }
.grid-2, .grid-3 { display: grid; gap: 12px; }
.grid-2 { grid-template-columns: 1fr 1fr; }
.grid-3 { grid-template-columns: 1fr 1fr 1fr; }
label.check { flex-direction: row; align-items: center; gap: 8px; font-weight: 400; }
.img-manage { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 12px; }
.img-item { position: relative; margin: 0 !important; gap: 4px !important; font-weight: 400 !important; }
.img-item img { aspect-ratio: 1; object-fit: contain; background: #fff; border-radius: 6px; width: 100%; }
.img-item span { display: flex; align-items: center; gap: 6px; font-size: 13px; }
.img-item em { position: absolute; top: 4px; left: 4px; background: var(--blue); color: #fff; font-size: 11px; font-style: normal; padding: 1px 6px; border-radius: 4px; }
.img-preview { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; margin-bottom: 12px; }
.img-preview img { aspect-ratio: 1; object-fit: contain; background: #fff; border-radius: 6px; }
.kv { display: grid; grid-template-columns: 150px 1fr; gap: 8px 14px; margin: 20px 0 0; font-size: 14.5px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; }
.cat-form { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; flex: 1; }
.cat-form input, .cat-form select { width: auto; flex: 1 1 140px; padding: 7px 10px; }
.cat-form .w-num { flex: 0 0 72px; }
.cat-list { margin-top: 14px; display: grid; gap: 8px; }
.cat-row { display: flex; gap: 10px; align-items: center; }
.cat-row > .icon { color: var(--cyan); }
.cat-row.child { padding-left: 28px; }
.pager { display: flex; gap: 16px; margin-top: 14px; }
.repair-list { display: grid; gap: 12px; }
.repair-head { display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: center; margin-bottom: 8px; }
.repair-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.repair-actions select { width: auto; }
.repair-actions input { flex: 1; min-width: 200px; width: auto; }
.pre-line { white-space: pre-line; }
.banner-list { display: grid; gap: 8px; }
.banner-row { display: grid; grid-template-columns: 64px 1fr auto; gap: 12px; align-items: center; padding: 8px; border-radius: 10px; border: 1px solid var(--line); }
.banner-row img, .banner-row .thumb-empty { width: 64px; height: 48px; object-fit: contain; background: #fff; border-radius: 6px; }
.banner-row.off { opacity: .5; }
.funnel { display: grid; gap: 10px; margin: 6px 0 10px; }
.funnel-step { display: grid; grid-template-columns: 160px 1fr 70px 150px; align-items: center; gap: 12px; font-size: 14px; }
.funnel-step > i { height: 14px; border-radius: 8px; background: rgba(142,165,201,.15); overflow: hidden; }
.funnel-step > i > i { display: block; height: 100%; background: linear-gradient(90deg, var(--cyan), var(--blue)); }
.funnel-step b { text-align: right; font-family: var(--display); }
.stat-cols { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 14px; margin-top: 14px; }
.stat-list { margin: 0; padding-left: 20px; display: grid; gap: 6px; font-size: 14px; }
.stars-inline { color: #ffc53d; letter-spacing: 1px; }
@media (max-width: 700px) { .funnel-step { grid-template-columns: 1fr 60px; } .funnel-step > i, .funnel-step small { grid-column: 1 / -1; } }
.ai-log summary { cursor: pointer; }
.ai-log-body { display: grid; gap: 8px; margin-top: 12px; }
.ai-log-msg { padding: 8px 12px; border-radius: 10px; background: rgba(26,125,255,.08); border: 1px solid var(--line); }
.ai-log-msg.user { background: rgba(56,212,255,.14); }
.ai-log-msg small { color: var(--cyan); font-weight: 600; }
.ai-log-msg p { margin: 4px 0 0; font-size: 14px; }
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card { width: min(380px, 100%); padding: 28px; text-align: center; }
.login-card img { margin: 0 auto 10px; filter: drop-shadow(0 0 20px rgba(26,125,255,.6)); }
.login-card h1 { font-size: 20px; margin-bottom: 18px; }
.login-card label { text-align: left; }

@media (max-width: 900px) {
  .admin-shell { grid-template-columns: 1fr; }
  .admin-side { position: static; height: auto; flex-direction: row; flex-wrap: wrap; align-items: center; }
  .admin-side nav { flex-direction: row; flex-wrap: wrap; }
  .admin-side-foot { margin: 0 0 0 auto; flex-direction: row; }
  .admin-main { padding: 18px 16px 48px; }
  .admin-cols, .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .admin-side-col { position: static; }
  .kv { grid-template-columns: 1fr; gap: 2px; }
  .kv dd { margin-bottom: 8px; }
}

/* ==========================================================
   Responsive cho các khối mới — đặt CUỐI file để ghi đè quy tắc gốc phía trên
   ========================================================== */
@media (max-width: 900px) {
  .slide { grid-template-columns: 1fr; padding: 20px 18px; gap: 14px; }
  .slide-img { order: -1; height: 170px; }
  .slides { min-height: 0; }
  .slide-text h2 { font-size: 28px; margin: 10px 0 6px; }
  .slide-text p { font-size: 15px; }
  .slide .hero-cta { margin-top: 12px; }
  .reviews-layout, .about-hero { grid-template-columns: 1fr; }
  .about-hero img { width: 140px; height: 140px; }
  .cmp-bar { bottom: calc(76px + env(safe-area-inset-bottom)); gap: 8px; }
  .cmp-thumbs span { width: 32px; height: 32px; }
  /* Thanh so sánh trải hết bề ngang, ảnh xếp chồng, bỏ chữ "sản phẩm" để nút So sánh + ✕ không bị đẩy ra ngoài */
  .cmp-bar { left: 12px; right: 12px; transform: none; max-width: none; }
  .cmp-bar .btn { margin-left: auto; }
  .cmp-thumbs { gap: 0; }
  .cmp-thumbs span + span { margin-left: -10px; box-shadow: -2px 0 0 var(--panel); }
  .cmp-unit { display: none; }
  .addr-fields .grid-2 { grid-template-columns: 1fr; gap: 0; }
  .pr-slider { width: 100%; }
}

/* ==========================================================
   Đầu trang — co giãn theo màn hình & menu trượt trên điện thoại
   (đặt cuối tệp để ghi đè các luật cơ bản phía trên)
   ========================================================== */
@media (max-width: 1280px) {
  .header-main { gap: 16px; }
  .mainnav-inner > ul > li > a { padding: 7px 10px; font-size: 14px; }
}
@media (max-width: 1180px) {
  .hdr-order .hdr-label, .cart-btn .hdr-label { display: none; }
  .hdr-actions > a { padding: 5px; }
  .topbar-info > span + span { display: none; }
}
@media (min-width: 901px) and (max-width: 1080px) {
  .mainnav-inner > ul > li > a .icon { display: none; }
  .mainnav-inner > ul > li > a { padding: 7px 8px; }
  .hdr-call .hdr-label { display: none; }
  .brand-sub { display: none; }
}
@media (max-width: 900px) {
  .topbar { display: none; }
  .menu-toggle { display: inline-grid; }
  .header-main { flex-wrap: wrap; gap: 10px; padding-top: 10px; padding-bottom: 10px; }
  .brand { margin-right: auto; gap: 8px; }
  .brand img { width: 40px; height: 40px; }
  .brand-name { font-size: 19px; }
  .site-header .search { order: 5; flex-basis: 100%; max-width: none; height: 44px; }
  .site-header .search button[type=submit] { padding: 0 18px; }
  .hdr-actions > .hdr-call, .hdr-actions > .hdr-order { display: none; } /* nút Gọi ngay đã có ở thanh đáy màn hình */
  .hdr-ico { width: 42px; height: 42px; }

  /* Menu trượt bên trái */
  .mainnav { position: fixed; top: 0; bottom: 0; left: 0; width: min(330px, 88vw); z-index: 60; border: 0; border-right: 1px solid var(--line-hi); background: linear-gradient(180deg, #071533, var(--bg-2) 40%); box-shadow: 24px 0 60px rgba(0,0,0,.55); transform: translateX(-100%); transition: transform .28s cubic-bezier(.2,.8,.2,1); overflow-y: auto; overscroll-behavior: contain; }
  .mainnav.open { transform: none; }
  .mainnav-head { display: flex; justify-content: space-between; align-items: center; position: sticky; top: 0; z-index: 2; margin: 0 -16px; padding: 12px 16px; background: rgba(7,21,51,.96); border-bottom: 1px solid var(--line); text-transform: none; font-size: inherit; }
  .brand-sm .brand-name { font-size: 18px; }
  .drawer-title { display: block; margin: 16px 0 6px; font-size: 11.5px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
  .mainnav-inner > ul { flex-direction: column; align-items: stretch; gap: 0; padding: 0; }
  .mainnav-inner > ul > li > a { padding: 12px 8px; border-radius: 10px; font-size: 15px; }
  .nav-sep { margin: 10px 0 0; }
  .mainnav-inner > ul > li.nav-sep { border-bottom: 0; }
  .mainnav-inner > ul > li > .nav-deal { justify-content: flex-start; }
  /* Build PC trong menu trượt: bỏ nghiêng, giữ viền neon */
  .mainnav-inner > ul > li.nav-build-li { border-bottom: 0; margin-top: 8px; }
  .mainnav-inner > ul > li > .nav-build, .mainnav-inner > ul > li:hover > .nav-build { flex: 1; margin: 0; transform: none; border-radius: 10px; overflow: hidden; }
  .nav-build::after { border-radius: 9px; }
  .nav-build-in { transform: none; padding: 12px 10px; }
  .drawer-extra { display: block; padding-bottom: 28px; }
  .drawer-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .drawer-grid a { display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 12px 4px; border-radius: 12px; background: rgba(26,125,255,.08); border: 1px solid var(--line); color: var(--text); font-size: 12.5px; line-height: 1.25; text-align: center; }
  .drawer-grid a:active { background: rgba(26,125,255,.2); }
  .drawer-grid .icon { color: var(--cyan); }
  .drawer-call { display: flex; align-items: center; gap: 12px; margin-top: 14px; padding: 12px; border-radius: 14px; color: var(--text); background: linear-gradient(135deg, rgba(47,224,160,.14), rgba(26,125,255,.08)); border: 1px solid rgba(47,224,160,.35); }
  .drawer-call .hdr-label b { font-size: 19px; }
  html.menu-open { overflow: hidden; }
}
@media (max-width: 400px) {
  .brand-sub { display: none; }
  .brand-name { font-size: 17px; }
  .header-main { gap: 8px; }
}
@media (prefers-reduced-motion: reduce) {
  .hdr-ico-call::after, .nav-build::before, .nav-build::after, .mainnav-inner > ul > li > .nav-deal .icon { animation: none; }
  .brand img, .mainnav { transition: none; }
}

/* Trả góp — màn hình nhỏ */
@media (max-width: 900px) {
  .inst-layout { grid-template-columns: 1fr; }
  .inst-product { position: static; display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 14px; align-items: center; }
  .inst-product-name { margin-top: 0; }
  .inst-perks { display: none; }
  .inst-methods { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .inst-form { padding: 14px; }
  .inst-tab { flex-direction: column; align-items: flex-start; gap: 6px; padding: 12px; }
  .inst-form .grid-2 { grid-template-columns: 1fr; gap: 0; }
  .inst-opt span { min-width: 56px; padding: 7px 11px; font-size: 13.5px; }
  .inst-monthly .price { font-size: 21px; }
}
@media (max-width: 420px) {
  .inst-cta { grid-template-columns: 1fr; }
}

/* ==========================================================
   Khuyến mãi: tặng phần mềm bán hàng Quầy Việt PRO
   ========================================================== */
.gift-band { display: flex; align-items: center; gap: 18px; margin-top: 18px; padding: 14px 18px; border: 1px solid rgba(255, 92, 92, .45); border-radius: var(--radius); background: linear-gradient(100deg, rgba(232, 38, 43, .16), rgba(10, 23, 48, .7) 55%); color: var(--text); transition: border-color .2s, transform .2s; }
.gift-band:hover { border-color: #ff6b6b; transform: translateY(-1px); }
.gift-band-logo { flex-shrink: 0; padding: 6px 10px; border-radius: 10px; background: #fff; }
.gift-band-logo img { display: block; width: 130px; height: auto; }
.gift-band-text { flex: 1; min-width: 0; }
.gift-band-text b { display: block; font-size: 16px; }
.gift-band-text b span { color: #ffd166; }
.gift-band-text small { color: var(--muted); font-size: 13px; }
.gift-band .btn { flex-shrink: 0; }

.gift-hero-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 28px; align-items: center; }
.gift-hero h1 b, .gift-hero .hero-lead b { color: #ffd166; }
.gift-visual { position: relative; padding: 18px; border: 1px solid var(--line-hi); border-radius: 16px; background: linear-gradient(160deg, rgba(255, 255, 255, .96), rgba(235, 242, 255, .92)); box-shadow: var(--glow), 0 20px 50px rgba(0, 0, 0, .45); text-align: center; }
.gift-logo { width: min(260px, 70%); height: auto; margin: 6px auto 10px; display: block; }
.gift-shot { width: 100%; height: auto; border-radius: 10px; box-shadow: 0 6px 24px rgba(20, 40, 80, .18); }
.gift-ribbon { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); display: inline-flex; align-items: center; gap: 6px; padding: 6px 14px; border-radius: 20px; background: linear-gradient(90deg, #e8262b, #ff7a3d); color: #fff; font-weight: 700; font-size: 13.5px; white-space: nowrap; box-shadow: 0 6px 18px rgba(232, 38, 43, .45); }
.gift-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.gift-chips span { padding: 6px 12px; border: 1px solid var(--line-hi); border-radius: 20px; background: rgba(26, 125, 255, .1); font-size: 13.5px; }
.gift-feats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.gift-feat { display: flex; gap: 12px; align-items: flex-start; padding: 16px; }
.gift-feat p { margin: 4px 0 0; font-size: 13.5px; }
.gift-pro { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 16px; align-items: stretch; }
.gift-pro-shot { margin: 0; padding: 14px; background: #fff; }
.gift-pro-shot img { width: 100%; height: auto; display: block; border-radius: 8px; }
.gift-pro-shot figcaption { color: #4a5872; margin-top: 8px; text-align: center; }
.gift-pro-list { padding: 22px; }
.gift-pro-list h2 { margin: 0 0 12px; font-size: 24px; }
.gift-pro-list ul { list-style: none; margin: 0 0 12px; padding: 0; display: grid; gap: 10px; }
.gift-pro-list li { display: flex; align-items: center; gap: 10px; }
.gift-pro-list li .icon { color: var(--ok); flex-shrink: 0; }
.gift-terms { margin: 0; padding: 18px 18px 18px 38px; display: grid; gap: 8px; }
.perk-gift { color: #ffd166; }
.perk-gift a { color: #ffd166; text-decoration: underline; text-underline-offset: 3px; }
.perk-gift .icon { color: #ff7a7a; }
.gift-box h2 { display: flex; align-items: center; gap: 8px; color: #ffd166; }
.gift-progress { display: flex; align-items: center; gap: 10px; margin: 12px 0 4px; padding: 10px 12px; border: 1px dashed rgba(255, 209, 102, .5); border-radius: 10px; background: rgba(255, 209, 102, .07); color: var(--text); font-size: 13.5px; }
.gift-progress > .icon { color: #ffd166; flex-shrink: 0; }
.gift-progress > span { flex: 1; min-width: 0; }
.gift-progress b { color: #ffd166; }
.gift-bar { display: block; height: 5px; margin-top: 6px; border-radius: 3px; background: rgba(255, 255, 255, .1); overflow: hidden; }
.gift-bar i { display: block; height: 100%; width: 0; border-radius: 3px; background: linear-gradient(90deg, #ff7a3d, #ffd166); transition: width .3s; }
.gift-progress.ok { border-style: solid; border-color: rgba(47, 224, 160, .55); background: rgba(47, 224, 160, .1); }
.gift-progress.ok b { color: #8affd2; }
.gift-progress.ok .gift-bar { display: none; }
@media (max-width: 900px) {
  .gift-hero-grid, .gift-pro { grid-template-columns: 1fr; }
  .gift-visual { margin-top: 18px; }
  .gift-feats { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .gift-band { flex-wrap: wrap; gap: 10px 14px; padding: 12px 14px; }
  .gift-band-logo img { width: 96px; }
  .gift-band-text { flex-basis: calc(100% - 140px); }
  .gift-band-text b { font-size: 14.5px; }
  .gift-band .btn { width: 100%; }
  .gift-feats { grid-template-columns: 1fr; }
  .gift-ribbon { font-size: 12.5px; }
}

/* ==========================================================
   Danh mục chưa có sản phẩm · Thu mua máy cũ
   ========================================================== */
.cat-empty { text-align: center; padding: 40px 20px; margin-top: 8px; }
.cat-empty > .icon { color: var(--cyan); }
.cat-empty h2 { margin: 12px 0 8px; font-size: 22px; }
.cat-empty p { max-width: 560px; margin: 0 auto 18px; }
.svc-card { scroll-margin-top: 140px; } /* menu Dịch vụ → /dich-vu-it#dv-… không bị header che */
.bb-what { grid-template-columns: repeat(4, 1fr); }
.bb-perks { grid-template-columns: 1fr 1fr; margin-top: 0; margin-bottom: 16px; }
.bb-tips { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.bb-tips li { display: flex; gap: 8px; align-items: flex-start; }
.bb-tips .icon { color: var(--ok); flex-shrink: 0; margin-top: 2px; }
.check-line { display: flex !important; align-items: center; gap: 8px; flex-direction: row !important; font-weight: 500; }
@media (max-width: 900px) { .bb-what { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .bb-what, .bb-perks { grid-template-columns: 1fr; } }

/* ==========================================================
   Tài khoản khách hàng · Đăng nhập bằng Google
   ========================================================== */
.hdr-avatar { overflow: hidden; padding: 0; }
.hdr-avatar img { width: 100%; height: 100%; object-fit: cover; border-radius: inherit; }
.hdr-avatar b { font-family: var(--display); font-size: 18px; color: var(--cyan); }
.hdr-account .hdr-label b { max-width: 9ch; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.login-card { max-width: 460px; margin: 28px auto 40px; padding: 32px 28px; text-align: center; }
.login-logo { display: block; margin: 0 auto 10px; }
.login-card h1 { font-size: 26px; margin: 0 0 6px; }
.btn-google { display: flex; align-items: center; justify-content: center; gap: 12px; width: 100%; margin: 20px 0 18px; padding: 12px 18px; border: 1px solid #dadce0; border-radius: 999px; background: #fff; color: #1f1f1f; font: 600 15.5px/1.2 Roboto, Arial, sans-serif; transition: box-shadow .2s, background .2s; }
.btn-google:hover { background: #f8faff; box-shadow: 0 2px 10px rgba(66, 133, 244, .35); color: #1f1f1f; }
.login-perks { list-style: none; margin: 0 0 16px; padding: 14px 16px; text-align: left; display: grid; gap: 10px; border: 1px solid var(--line); border-radius: 10px; background: rgba(10, 23, 48, .5); }
.login-perks li { display: flex; align-items: center; gap: 10px; font-size: 14px; }
.login-perks .icon { color: var(--cyan); flex-shrink: 0; }
.account-layout { display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: 20px; align-items: start; margin-bottom: 40px; }
.account-card { padding: 24px 20px; text-align: center; display: grid; gap: 6px; }
.account-card h1 { font-size: 21px; margin: 6px 0 0; }
.account-card p { margin: 0; }
.account-avatar { width: 72px; height: 72px; margin: 0 auto; border-radius: 50%; object-fit: cover; border: 2px solid var(--line-hi); }
.account-initial { display: grid; place-items: center; font-family: var(--display); font-size: 32px; color: var(--cyan); background: var(--panel-hi); }
.account-phone { display: grid; gap: 8px; margin: 12px 0 6px; padding-top: 14px; border-top: 1px solid var(--line); text-align: left; }
.form-ok { margin: 0; color: #8affd2; font-size: 13.5px; }
.account-orders { display: grid; gap: 12px; }
.account-order { padding: 14px 16px; }
.account-order header { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 12px; }
.account-order .push-right { margin-left: auto; }
.account-order ul { margin: 10px 0 6px; padding-left: 18px; }
.account-order p { margin: 0; }
@media (max-width: 900px) {
  .account-layout { grid-template-columns: 1fr; }
  .hdr-actions > .hdr-account .hdr-label { display: none; }
}
@media (max-width: 1180px) {
  .hdr-account .hdr-label { display: none; }
}

/* Menu chính (8 mục + Deal hời + Build PC): thu gọn theo khổ màn hình để luôn nằm trên 1 hàng */
@media (min-width: 901px) and (max-width: 1440px) {
  .mainnav-inner > ul > li > a { padding: 7px 10px; }
}
@media (min-width: 901px) and (max-width: 1200px) {
  .mainnav-inner > ul > li > a:not(.nav-deal) .icon { display: none; }
  .mainnav-inner > ul > li > a { padding: 7px 8px; }
}
@media (min-width: 901px) and (max-width: 980px) {
  .mainnav-inner > ul > li > a { padding: 6px 6px; font-size: 13px; }
  .mainnav-inner > ul > li > .nav-deal .icon { display: none; }
  .nav-build-in { padding: 7px 10px; font-size: 13px; letter-spacing: .02em; }
}

/* ==========================================================
   Trang dịch vụ chi tiết (thiết kế website, phần mềm, app)
   ========================================================== */
.sp-badges { list-style: none; display: flex; flex-wrap: wrap; gap: 8px 18px; margin: 18px 0 0; padding: 0; color: #cfe0f7; font-size: 14px; }
.sp-badges li { display: inline-flex; align-items: center; gap: 6px; }
.sp-badges .icon { color: var(--ok); }
.sp-intro { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(280px, 1fr); gap: 24px; align-items: start; }
.sp-intro-text h2 { margin: 0 0 12px; font-size: clamp(22px, 2.6vw, 28px); }
.sp-intro-text p { color: #cfe0f7; font-size: 16px; line-height: 1.75; margin: 0 0 12px; }
.sp-price-card { display: flex; flex-direction: column; gap: 10px; padding: 22px; }
.sp-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.sp-grid .service-item h3 { font-size: 17px; }
.sp-feats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px 24px; }
.sp-feat { display: flex; gap: 12px; align-items: flex-start; }
.sp-feat > .icon { flex-shrink: 0; margin-top: 3px; color: var(--cyan); filter: drop-shadow(0 0 6px rgba(56, 212, 255, .5)); }
.sp-feat h3 { margin: 0 0 4px; font-size: 16px; }
.sp-feat p { margin: 0; color: var(--muted); font-size: 14px; }
.svc-card h3 a { color: inherit; }
.svc-card h3 a:hover { color: var(--cyan); }
.sp-quote { font-size: 22px !important; }
.sp-note { margin-top: 12px; }
.process-6 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.sp-cases { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 12px; }
.sp-case { padding: 20px; }
.sp-case h3 { margin: 0 0 8px; }
.sp-case .gift-chips { margin: 10px 0 0; }
.sp-related { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.sp-rel { display: flex; align-items: center; gap: 12px; padding: 14px 16px; color: var(--text); transition: border-color .2s, transform .2s; }
.sp-rel:hover { border-color: var(--cyan); transform: translateY(-1px); }
.sp-rel > span:nth-child(2) { flex: 1; min-width: 0; }
.sp-rel b { display: block; }
.sp-rel small { color: var(--muted); font-size: 13px; }
.sp-rel > .icon { color: var(--muted); }
@media (max-width: 900px) {
  .sp-intro { grid-template-columns: 1fr; }
  .sp-grid, .sp-feats, .process-6, .sp-related { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .sp-grid, .sp-feats, .process-6, .sp-related { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  /* Trang dịch vụ / khuyến mãi: nút dài ("Nhận tư vấn & báo giá") → xếp 1 cột cho khỏi tràn */
  .svc-hero .hero-cta { grid-template-columns: 1fr; }
}

/* Captcha Turnstile ở trang đăng nhập quản trị */
.login-captcha { display: flex; justify-content: center; min-height: 65px; }