/* Sinh bởi cong_cu/tai_phong.py. Phông tự chứa, giấy phép SIL OFL. */
@font-face {font-family: 'Bricolage Grotesque'; font-style: normal; font-weight: 400 800; font-stretch: 100%; font-display: swap; src: url(../phong/bricolage-vietnamese.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: 'Bricolage Grotesque'; font-style: normal; font-weight: 400 800; font-stretch: 100%; font-display: swap; src: url(../phong/bricolage-latin-ext.woff2) format('woff2'); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face {font-family: 'Bricolage Grotesque'; font-style: normal; font-weight: 400 800; font-stretch: 100%; font-display: swap; src: url(../phong/bricolage-latin.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: 'Hanken Grotesk'; font-style: normal; font-weight: 400 700; font-display: swap; src: url(../phong/hanken-vietnamese.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: 'Hanken Grotesk'; font-style: normal; font-weight: 400 700; font-display: swap; src: url(../phong/hanken-latin-ext.woff2) format('woff2'); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face {font-family: 'Hanken Grotesk'; font-style: normal; font-weight: 400 700; font-display: swap; src: url(../phong/hanken-latin.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; }
/* Đất Cảng Solar - giao diện web (bản thiết kế lại 15/11/2026).
   Hướng: nền trắng, xám lạnh nhạt; màu lấy đúng từ logo (xanh than, vàng nắng, cam, xanh tấm pin); chữ Bricolage Grotesque + Hanken Grotesk tự chứa;
   đầu trang dạng "đảo" kính mờ; thẻ hai lớp viền; nút có vòng tròn mũi tên; chuyển động theo đường cong lò xo, chỉ dùng transform và opacity.
   Thứ tự khối nội dung vẫn theo mẫu cửa hàng điện mặt trời đã chọn; mã tự viết. */
:root {
  --bg: #ffffff; --bg-2: #f3f5f8; --card: #ffffff; --line: rgba(10, 27, 51, .09);
  --ink: #0a1b33; --text: #46546a; --muted: #61708a;
  --navy: #0b2545; --navy-2: #06162b; --sun: #ffc222; --sun-2: #ffb300; --accent: #f26a1b; --accent-2: #d9570c; --accent-chu: #b8480a; --blue: #1b5fd1; --teal: #2cb7c9;
  --r: 22px; --r-lg: 32px; --wrap: 1240px; --lo-xo: cubic-bezier(.32, .72, 0, 1);
  --vien: 0 0 0 1px rgba(10, 27, 51, .06), 0 0 0 6px rgba(10, 27, 51, .028);
  --bong: 0 30px 60px -38px rgba(10, 27, 51, .35);
  --font: "Hanken Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-h: "Bricolage Grotesque", "Hanken Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
}
@view-transition { navigation: auto; }
::view-transition-old(root), ::view-transition-new(root) { animation-duration: .32s; animation-timing-function: cubic-bezier(.32, .72, 0, 1); }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--font); font-size: 17px; line-height: 1.65; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { color: var(--ink); font-family: var(--font-h); font-weight: 700; letter-spacing: -.028em; line-height: 1.06; margin: 0; text-wrap: balance; }
p { margin: 0 0 1em; }
ul { margin: 0; padding: 0; list-style: none; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.skip { position: absolute; left: -999px; top: 0; background: var(--navy); color: #fff; padding: 10px 16px; z-index: 50; border-radius: 12px; }
.skip:focus { left: 12px; top: 12px; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; border-radius: 6px; }
.ic { width: 18px; height: 18px; flex: none; stroke: currentColor; fill: none; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.an { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
a.lk { color: var(--blue); font-weight: 600; text-decoration: underline; text-underline-offset: 3px; }

/* ---------- đầu trang: đảo kính mờ, tách khỏi mép ---------- */
.site-header { position: sticky; top: 12px; z-index: 30; padding: 12px 16px 0; view-transition-name: dau-trang; }
.site-header .dao { position: relative; isolation: isolate; max-width: var(--wrap); margin: 0 auto; display: flex; align-items: center; gap: 18px; padding: 8px 8px 8px 18px; border-radius: 999px; }
.site-header .dao::before { content: ""; position: absolute; inset: 0; z-index: -2; border-radius: inherit; background: rgba(255, 255, 255, .84); -webkit-backdrop-filter: blur(18px) saturate(170%); backdrop-filter: blur(18px) saturate(170%); box-shadow: 0 0 0 1px rgba(10, 27, 51, .07), 0 20px 44px -26px rgba(10, 27, 51, .4); transition: box-shadow .5s var(--lo-xo); }
.site-header.cuon .dao::before { box-shadow: 0 0 0 1px rgba(10, 27, 51, .09), 0 26px 50px -24px rgba(10, 27, 51, .5); }
.logo { display: inline-flex; align-items: center; gap: 10px; }
.logo img { width: 46px; height: auto; }
.logo b { display: block; font-family: var(--font-h); color: var(--ink); font-size: 19px; font-weight: 800; letter-spacing: -.02em; line-height: 1; }
.logo span { display: block; color: var(--accent-chu); font-size: 10.5px; font-weight: 700; letter-spacing: .36em; margin-top: 4px; }
.nav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.nav a { font-family: var(--font-h); color: var(--ink); font-weight: 500; font-size: 15.5px; letter-spacing: -.01em; padding: 9px 15px; border-radius: 999px; transition: background .4s var(--lo-xo), color .4s var(--lo-xo); }
.nav a:hover { background: rgba(10, 27, 51, .06); }
.nav a[aria-current="page"] { background: var(--navy); color: #fff; }
.nav .btn { display: none; }
.site-header .goi { margin-left: 6px; }
.nav-btn { display: none; width: 46px; height: 46px; border-radius: 50%; border: 0; background: var(--navy); cursor: pointer; position: relative; flex: none; }
.nav-btn i { position: absolute; left: 14px; right: 14px; height: 2px; border-radius: 2px; background: #fff; transition: transform .5s var(--lo-xo), top .5s var(--lo-xo); }
.nav-btn i:first-child { top: 18px; }
.nav-btn i:last-child { top: 26px; }
.nav-btn[aria-expanded="true"] i:first-child { top: 22px; transform: rotate(45deg); }
.nav-btn[aria-expanded="true"] i:last-child { top: 22px; transform: rotate(-45deg); }

/* ---------- nút: viên thuốc, vòng tròn mũi tên nằm trong nút ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 54px; padding: 0 26px; border-radius: 999px; font-family: var(--font-h); font-weight: 600; font-size: 16px; letter-spacing: -.01em; border: 0; cursor: pointer; white-space: nowrap; transition: transform .5s var(--lo-xo), background .5s var(--lo-xo), box-shadow .5s var(--lo-xo); }
.btn:active { transform: scale(.975); }
.btn .tron { width: 34px; height: 34px; margin-right: -14px; border-radius: 50%; display: grid; place-items: center; background: rgba(255, 255, 255, .16); transition: transform .5s var(--lo-xo); }
.btn:hover .tron { transform: translate(3px, -1px) scale(1.06); }
.btn-navy { background: var(--navy); color: #fff; box-shadow: 0 14px 26px -16px rgba(11, 37, 69, .8); }
.btn-navy:hover { background: #123463; }
.btn-accent, .btn-sun { background: var(--sun); color: var(--ink); box-shadow: 0 14px 26px -16px rgba(255, 179, 0, .9); }
.btn-accent:hover, .btn-sun:hover { background: var(--sun-2); }
.btn-accent .tron, .btn-sun .tron { background: var(--navy); color: var(--sun); }
.btn-line { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1.5px rgba(10, 27, 51, .28); }
.btn-line:hover { box-shadow: inset 0 0 0 1.5px var(--ink); }
.btn-kinh { background: rgba(255, 255, 255, .14); color: #fff; box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .34); }
.btn-kinh:hover { background: rgba(255, 255, 255, .22); }
.btn-sm { min-height: 46px; padding: 0 20px; font-size: 15px; }

/* ---------- nhãn nhỏ phía trên tiêu đề ---------- */
.kicker { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font); font-size: 11.5px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--navy); padding: 7px 14px; border-radius: 999px; background: rgba(11, 37, 69, .06); margin-bottom: 20px; }
.kicker::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
.k-toi { color: #fff; background: rgba(255, 255, 255, .14); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .22); }
.k-toi::before { background: var(--sun); }

/* ---------- ảnh lớn đầu trang ---------- */
.hero { position: relative; border-radius: var(--r-lg); overflow: hidden; min-height: min(78vh, 720px); display: flex; flex-direction: column; justify-content: flex-end; color: #fff; margin-top: 18px; background: var(--navy-2); isolation: isolate; }
.hero picture img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 60%; z-index: -2; animation: phong-to 16s var(--lo-xo) both; }
@keyframes phong-to { from { transform: scale(1.08); } to { transform: scale(1); } }
.hero::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(6, 22, 43, .35) 0%, rgba(6, 22, 43, .1) 30%, rgba(6, 22, 43, .86) 100%), radial-gradient(900px 520px at 0% 100%, rgba(6, 22, 43, .85), rgba(6, 22, 43, 0) 70%); }
.hero .in { padding: 0 56px 46px; max-width: 980px; }
.hero h1 { color: #fff; font-size: clamp(40px, 6.2vw, 86px); font-weight: 700; letter-spacing: -.03em; line-height: 1; }
.hero h1 { text-wrap: wrap; }
.hero h1 em { font-style: normal; color: var(--sun); }
@media (min-width: 900px) { .hero h1 em { display: block; } }
.hero p { font-size: clamp(17px, 1.5vw, 20px); margin: 22px 0 0; color: #e7edf5; max-width: 560px; }
.hero .cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 30px; }
.hero .so-lieu { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid rgba(255, 255, 255, .18); background: rgba(6, 22, 43, .55); }
.hero .so-lieu li { padding: 22px 56px 24px; display: flex; align-items: baseline; gap: 14px; }
.hero .so-lieu li + li { border-left: 1px solid rgba(255, 255, 255, .16); padding-left: 32px; }
.hero .so-lieu b { font-family: var(--font-h); font-size: clamp(28px, 3vw, 42px); font-weight: 700; letter-spacing: -.04em; color: var(--sun); line-height: 1; }
.hero .so-lieu span { font-size: 14.5px; color: #cfd9e6; line-height: 1.35; }

/* ---------- bốn ô danh mục xếp kiểu khảm ---------- */
.cats { display: grid; grid-template-columns: 1.25fr 1fr 1fr; grid-template-rows: 250px 250px; gap: 18px; margin-top: 18px; }
.cat { position: relative; border-radius: var(--r); overflow: hidden; display: block; color: #fff; background: var(--navy); isolation: isolate; box-shadow: var(--bong); }
.cat:nth-of-type(1) { grid-row: span 2; }
.cat:nth-of-type(4) { grid-column: span 2; }
.cat img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; transition: transform 1.1s var(--lo-xo); }
.cat:hover img { transform: scale(1.06); }
.cat::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(6, 22, 43, 0) 35%, rgba(6, 22, 43, .88) 100%); }
.cat .t { position: absolute; left: 26px; right: 22px; bottom: 22px; display: flex; align-items: flex-end; justify-content: space-between; gap: 14px; }
.cat h3 { color: #fff; font-size: clamp(22px, 2vw, 30px); }
.cat span { width: 44px; height: 44px; flex: none; border-radius: 50%; display: grid; place-items: center; background: var(--sun); color: var(--ink); font-size: 0; transition: transform .6s var(--lo-xo); }
.cat span .ic { width: 20px; height: 20px; }
.cat:hover span { transform: translate(3px, -3px) rotate(-45deg); }

/* ---------- khối, tiêu đề khối ---------- */
.sec { padding: 132px 0 0; }
.sec-last { padding-bottom: 132px; }
.sec-head { max-width: 860px; margin: 0 0 56px; }
.sec-head.giua { margin-inline: auto; text-align: center; }
.sec-head h2, .h2 { font-size: clamp(34px, 5vw, 68px); }
.sec-head p { max-width: 640px; margin: 22px 0 0; font-size: 18px; }
.sec-head.giua p { margin-inline: auto; }
.center { text-align: center; }
.mt-40 { margin-top: 48px; }

/* ---------- sản phẩm ---------- */
.prods { display: grid; grid-template-columns: repeat(3, 1fr); gap: 34px 28px; }
.prod { display: flex; flex-direction: column; }
.prod .pic { position: relative; background: linear-gradient(165deg, #ffffff 0%, #eef1f5 100%); border-radius: var(--r); aspect-ratio: 1; display: grid; place-items: center; padding: 14%; transform-style: preserve-3d; box-shadow: var(--vien), inset 0 1px 0 #fff, var(--bong); transition: box-shadow .6s var(--lo-xo); }
.prod .pic::after { content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; opacity: 0; transition: opacity .5s var(--lo-xo); background: radial-gradient(380px circle at var(--mx, 50%) var(--my, 0%), rgba(255, 255, 255, .95), rgba(255, 255, 255, 0) 60%); }
.prod:hover .pic::after { opacity: 1; }
.prod .pic img { width: 100%; height: 100%; object-fit: contain; transform: translateZ(40px); filter: drop-shadow(0 22px 18px rgba(10, 27, 51, .2)); transition: transform .8s var(--lo-xo); }
.prod:hover .pic img { transform: translateZ(76px) scale(1.05); }
.prod .pic img.nhan { mix-blend-mode: multiply; filter: none; }
.prod .tag { position: absolute; left: 16px; top: 16px; transform: translateZ(30px); background: var(--navy); color: #fff; font-size: 11px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; padding: 6px 12px; border-radius: 999px; }
.prod .pic .noimg { color: #c3cbd6; display: grid; place-items: center; gap: 10px; font-size: 13px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; }
.prod .pic .noimg .ic { width: 86px; height: 86px; stroke-width: 1; }
.prod .pic .noimg span { color: var(--muted); }
.prod h3 { font-size: 20px; font-weight: 600; letter-spacing: -.02em; line-height: 1.25; margin: 26px 4px 8px; }
.prod .gia { margin: 0 4px; color: var(--muted); font-size: 15px; font-weight: 500; }
.prod ul.ts { margin: 12px 4px 0; padding-top: 12px; border-top: 1px solid var(--line); font-size: 14.5px; line-height: 1.55; }
.prod ul.ts li + li { margin-top: 3px; }
.prod .hoi { margin: 16px 4px 0; align-self: flex-start; }
.vt { width: 100%; border-collapse: collapse; background: var(--card); font-size: 16px; }
.vt th, .vt td { text-align: left; padding: 16px 22px; border-bottom: 1px solid var(--line); vertical-align: top; }
.vt th { color: var(--ink); font-family: var(--font-h); font-weight: 600; font-size: 12.5px; letter-spacing: .1em; text-transform: uppercase; background: var(--bg-2); }
.vt td:first-child { color: var(--ink); font-weight: 500; }
.vt tr:last-child td { border-bottom: 0; }
.vt .gia { white-space: nowrap; color: var(--muted); }
.vt-wrap { overflow-x: auto; border-radius: var(--r); box-shadow: var(--vien); }

/* ---------- khối chữ lớn + hai ảnh xếp lệch ---------- */
.split { margin-top: 132px; }
.split .wrap { display: grid; grid-template-columns: 1.02fr 1fr; gap: 0 80px; align-items: center; }
.split .tx { order: -1; }
.split .tx h2 { font-size: clamp(34px, 4.6vw, 62px); margin-bottom: 26px; }
.split .phs { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 20px; padding: 30px 0; }
.split .ph { border-radius: var(--r); overflow: hidden; aspect-ratio: 3 / 4.6; background: var(--navy); box-shadow: var(--vien), var(--bong); transform: rotate(-2deg); transition: transform .9s var(--lo-xo); }
.split .ph:nth-child(2) { transform: translateY(46px) rotate(2.5deg); }
.split .phs:hover .ph { transform: rotate(0); }
.split .phs:hover .ph:nth-child(2) { transform: translateY(46px) rotate(0); }
.split .ph img { width: 100%; height: 100%; object-fit: cover; object-position: 0 100%; }
.checks li { display: flex; gap: 14px; align-items: flex-start; padding: 14px 0; border-top: 1px solid var(--line); color: var(--text); }
.checks .ic { color: var(--accent-chu); width: 20px; height: 20px; margin-top: 4px; stroke-width: 2.2; }
.split .btn { margin-top: 26px; }

/* ---------- dải thương hiệu chạy ngang ---------- */
.brands { padding: 110px 0 0; overflow: hidden; }
.brands p { font-size: 11.5px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); margin-bottom: 26px; text-align: center; }
.brands .chay { display: flex; width: max-content; animation: chay 36s linear infinite; }
.brands:hover .chay { animation-play-state: paused; }
.brands ul { display: flex; align-items: center; gap: 64px; padding-right: 64px; }
.brands li { font-family: var(--font-h); font-size: clamp(26px, 3vw, 40px); font-weight: 700; letter-spacing: -.035em; color: #8793a6; white-space: nowrap; }
@keyframes chay { to { transform: translateX(-50%); } }

/* ---------- thẻ bài viết ---------- */
.posts { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.posts.c3 { grid-template-columns: repeat(3, 1fr); }
.post { background: var(--card); border-radius: var(--r); overflow: hidden; display: flex; flex-direction: column; box-shadow: var(--vien), var(--bong); transition: box-shadow .6s var(--lo-xo); }
.post .im { aspect-ratio: 3 / 2; overflow: hidden; background: var(--bg-2); }
.post .im img { width: 100%; height: 100%; object-fit: cover; object-position: 0 100%; transition: transform 1s var(--lo-xo); }
.post:hover .im img { transform: scale(1.05); }
.post .bd { padding: 22px 24px 24px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.chip { align-self: flex-start; background: var(--bg-2); color: var(--navy); font-size: 11px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; padding: 6px 12px; border-radius: 999px; }
.post h3 { font-size: 19px; font-weight: 600; letter-spacing: -.02em; line-height: 1.3; }
.post .more { margin-top: auto; color: var(--blue); font-weight: 600; font-size: 15px; display: inline-flex; align-items: center; gap: 6px; }
.post .more .ic { transition: transform .5s var(--lo-xo); }
.post:hover .more .ic { transform: translateX(4px); }

/* ---------- tìm nhanh theo nhu cầu ---------- */
.qt { margin-top: 18px; background: var(--bg-2); border-radius: var(--r-lg); padding: 30px 34px; }
.qt .hang { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; margin-bottom: 14px; }
.qt .hang:last-of-type { margin-bottom: 0; }
.qt b { font-family: var(--font-h); color: var(--ink); font-weight: 600; font-size: 17px; letter-spacing: -.02em; }
.qt .chips { display: flex; flex-wrap: wrap; gap: 8px; }
.qt .chips button, .anchor-nav a, .loc button { background: #fff; color: var(--ink); font: 500 15px var(--font-h); letter-spacing: -.01em; padding: 10px 18px; border-radius: 999px; border: 0; box-shadow: inset 0 0 0 1px var(--line); cursor: pointer; transition: transform .5s var(--lo-xo), background .5s var(--lo-xo), color .5s var(--lo-xo); }
.qt .chips button:hover, .anchor-nav a:hover, .loc button:hover { transform: translateY(-2px); }
.qt .chips button[aria-pressed="true"], .loc button[aria-pressed="true"], .anchor-nav a:hover { background: var(--navy); color: #fff; box-shadow: none; }
.qt .khac { color: var(--blue); font: 500 15px var(--font-h); padding: 10px 6px; text-decoration: underline; text-underline-offset: 3px; }
.qt .tim input, .loc-tim { flex: 1 1 340px; min-width: 0; width: 100%; padding: 15px 22px; border-radius: 999px; border: 0; box-shadow: inset 0 0 0 1px var(--line); background: #fff; font: 500 16px var(--font); color: var(--ink); }
.qt .tim input:focus, .loc-tim:focus { outline: 2px solid var(--blue); outline-offset: 2px; }
.qt .xoa { background: none; border: 0; color: var(--muted); font: inherit; font-size: 14px; text-decoration: underline; cursor: pointer; padding: 6px; }
.qt .gc { font-size: 14px; color: var(--muted); margin: 12px 0 0; }
.qt #qtKq { margin-top: 22px; }
.loc { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 30px; }
.loc-tim { display: block; margin: 0 0 18px; max-width: 620px; }
.loc-chon { display: none; width: 100%; margin: 0 0 22px; padding: 15px 18px; border-radius: 16px; border: 0; box-shadow: inset 0 0 0 1px var(--line); background: #fff; color: var(--ink); font: 500 16px var(--font-h); }

/* ---------- nắng và giá điện theo nơi ở ---------- */
.vitri { margin-top: 132px; }
.vitri .o { display: grid; grid-template-columns: 1fr 1.1fr; gap: 26px; align-items: stretch; }
.vitri .trai { background: var(--navy); color: #d5deea; border-radius: var(--r-lg); padding: 46px 44px; position: relative; overflow: hidden; isolation: isolate; }
.vitri .trai::before { content: ""; position: absolute; z-index: -1; right: -160px; top: -160px; width: 460px; height: 460px; border-radius: 50%; background: radial-gradient(circle, rgba(255, 194, 34, .34), rgba(255, 194, 34, 0) 68%); }
.vitri h2 { color: #fff; font-size: clamp(30px, 3.6vw, 50px); }
.vitri h2 em { font-style: normal; color: var(--sun); }
.vitri .chon { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.vitri select { flex: 1 1 200px; padding: 14px 18px; border-radius: 999px; border: 0; background: rgba(255, 255, 255, .12); color: #fff; font: 500 16px var(--font-h); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .25); }
.vitri select option { color: var(--ink); }
.vitri .gc { font-size: 14px; color: #a9b8cc; margin: 16px 0 0; min-height: 1.4em; }
.vitri .lon { display: flex; align-items: baseline; gap: 12px; margin-top: 34px; }
.vitri .lon b { font-family: var(--font-h); font-size: clamp(58px, 7vw, 104px); font-weight: 800; letter-spacing: -.05em; line-height: .9; color: var(--sun); }
.vitri .lon span { font-size: 15.5px; line-height: 1.35; max-width: 200px; }
.vitri .cot { display: grid; grid-template-columns: repeat(12, 1fr); gap: 6px; align-items: end; height: 110px; margin-top: 30px; }
.vitri .cot i { display: block; border-radius: 6px 6px 2px 2px; background: linear-gradient(180deg, var(--sun), #ff9a1f); height: 100%; transform: scaleY(calc(var(--h) / 100)); transform-origin: 50% 100%; transition: transform .9s var(--lo-xo); }
.vitri .thang { display: grid; grid-template-columns: repeat(12, 1fr); gap: 6px; margin-top: 8px; font-size: 11.5px; color: #a9b8cc; text-align: center; }
.vitri .phai { background: var(--bg-2); border-radius: var(--r-lg); padding: 40px 40px 34px; display: flex; flex-direction: column; }
.vitri .phai h3 { font-size: 24px; margin-bottom: 6px; }
.vitri .phai > p { font-size: 15px; margin-bottom: 18px; }
.vitri table { width: 100%; border-collapse: collapse; font-size: 15.5px; }
.vitri td { padding: 12px 0; border-top: 1px solid var(--line); vertical-align: top; }
.vitri td:last-child { text-align: right; font-family: var(--font-h); font-weight: 600; color: var(--ink); white-space: nowrap; padding-left: 16px; }
.vitri .nguon { font-size: 13px; color: var(--muted); margin: 14px 0 20px; }
.vitri .phai .btn { margin-top: auto; align-self: flex-start; }

/* ---------- băng công cụ tính ---------- */
.calc { margin-top: 132px; }
.calc .box { background: radial-gradient(900px 500px at 12% -10%, #17437e 0%, rgba(23, 67, 126, 0) 60%), var(--navy); color: #d5deea; border-radius: var(--r-lg); padding: 70px 64px; display: grid; grid-template-columns: 1.15fr 1fr; gap: 56px; align-items: center; position: relative; overflow: hidden; box-shadow: 0 46px 70px -46px rgba(11, 37, 69, .8); }
.calc .box::before { content: ""; position: absolute; right: -140px; top: -140px; width: 440px; height: 440px; border-radius: 50%; background: radial-gradient(circle, rgba(255, 194, 34, .3), rgba(255, 194, 34, 0) 68%); }
.calc h2 { color: #fff; font-size: clamp(32px, 4.2vw, 58px); margin-bottom: 20px; }
.calc .steps { position: relative; display: grid; gap: 12px; }
.calc .steps li { background: rgba(255, 255, 255, .07); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .13); border-radius: 18px; padding: 18px 20px; display: flex; gap: 16px; align-items: center; color: #fff; font-family: var(--font-h); font-weight: 500; transition: transform .6s var(--lo-xo); }
.calc .steps li:hover { transform: translateX(8px); }
.calc .steps b { flex: none; width: 36px; height: 36px; border-radius: 50%; background: var(--sun); color: var(--ink); display: grid; place-items: center; font-size: 15px; }
.calc .btn { margin-top: 14px; }

/* ---------- hỏi đáp ---------- */
.faq { max-width: 920px; }
.faq details { border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; padding: 26px 64px 26px 0; color: var(--ink); font-family: var(--font-h); font-weight: 600; font-size: clamp(18px, 1.7vw, 23px); letter-spacing: -.02em; line-height: 1.3; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before, .faq summary::after { content: ""; position: absolute; right: 12px; top: 50%; width: 20px; height: 2px; border-radius: 2px; background: var(--ink); transition: transform .5s var(--lo-xo); }
.faq summary::after { transform: rotate(90deg); }
.faq details[open] summary::after { transform: rotate(0); }
.faq .a { padding: 0 64px 28px 0; }
.faq .a a { color: var(--blue); font-weight: 600; text-decoration: underline; text-underline-offset: 3px; }

/* ---------- dải fanpage, dải việc làm, chân trang ---------- */
.fp { margin-top: 132px; }
.fp .in { background: var(--bg-2); border-radius: var(--r-lg); padding: 34px 40px; display: flex; flex-wrap: wrap; gap: 18px 30px; align-items: center; justify-content: space-between; }
.fp .chu b { display: block; font-family: var(--font-h); color: var(--ink); font-size: 22px; font-weight: 700; letter-spacing: -.03em; }
.fp .chu span { color: var(--text); font-size: 15.5px; }
.fp .nut { display: flex; flex-wrap: wrap; gap: 10px; }
.strip { background: var(--navy); color: #fff; margin-top: 36px; }
.strip ul { display: grid; grid-template-columns: repeat(4, 1fr); }
.strip li { display: flex; align-items: center; gap: 18px; padding: 40px 26px; }
.strip li + li { box-shadow: inset 1px 0 0 rgba(255, 255, 255, .12); }
.strip .ic { width: 58px; height: 58px; padding: 14px; border-radius: 18px; background: rgba(255, 255, 255, .08); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .14); stroke-width: 1.3; color: var(--sun); }
.strip b { display: block; font-family: var(--font-h); font-size: 17.5px; font-weight: 600; letter-spacing: -.02em; }
.strip span { font-size: 14.5px; color: #c0cbdb; }
.foot { background: var(--navy-2); color: #a4b2c6; font-size: 15.5px; }
.foot .cols { display: grid; grid-template-columns: 1.25fr 1fr .8fr 1.15fr; gap: 40px; padding: 90px 0 60px; }
.foot h4 { color: #fff; font-size: 17px; letter-spacing: -.02em; margin-bottom: 22px; }
.foot li { margin-bottom: 12px; }
.foot a { transition: color .4s var(--lo-xo); }
.foot a:hover { color: var(--sun); }
.foot .lg { width: 170px; margin-bottom: 22px; }
.foot .tel { color: #fff; font-family: var(--font-h); font-size: 24px; font-weight: 700; letter-spacing: -.03em; }
.foot .soc { display: flex; gap: 10px; margin-top: 8px; }
.foot .soc a { width: 46px; height: 46px; border-radius: 50%; box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .2); display: grid; place-items: center; color: #fff; transition: background .5s var(--lo-xo), transform .5s var(--lo-xo); }
.foot .soc a:hover { background: var(--sun); color: var(--ink); transform: translateY(-3px); }
.foot .end { border-top: 1px solid rgba(255, 255, 255, .1); padding: 28px 0 36px; font-size: 14px; display: flex; flex-wrap: wrap; gap: 8px 30px; justify-content: space-between; }
.fab { position: fixed; right: 20px; bottom: 20px; z-index: 40; display: flex; flex-direction: column; gap: 10px; transition: opacity .4s var(--lo-xo); }
.fab a { width: 50px; height: 50px; border-radius: 50%; display: grid; place-items: center; color: #fff; box-shadow: 0 16px 30px -12px rgba(10, 27, 51, .55); transition: transform .5s var(--lo-xo); }
.fab a:hover { transform: translateY(-3px) scale(1.06); }
.fab .ic { width: 22px; height: 22px; }
.fab .fb { background: var(--navy); }
.fab .mes { background: var(--blue); }
.fab .goi { background: var(--accent-2); }

/* ---------- đầu trang con ---------- */
.page-head { background: var(--bg-2); border-radius: var(--r-lg); padding: 74px 64px 64px; margin-top: 18px; }
.crumb { font-size: 14px; color: var(--muted); margin-bottom: 18px; display: flex; flex-wrap: wrap; gap: 8px; }
.crumb a:hover { color: var(--blue); }
.page-head h1 { font-size: clamp(34px, 5vw, 68px); max-width: 1000px; }
.page-head p { margin: 22px 0 0; max-width: 780px; font-size: 18px; }
.anchor-nav { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 30px; }
.sub-h { font-size: clamp(28px, 3.4vw, 46px); margin-bottom: 38px; scroll-margin-top: 120px; }
.sec-sm { padding-top: 96px; }
.note-box { background: var(--bg-2); border-radius: var(--r); padding: 26px 30px; margin-top: 40px; }
.note-box p:last-child { margin: 0; }

/* ---------- công trình ---------- */
.proj { display: grid; grid-template-columns: 380px 1fr; gap: 44px; padding: 52px 0; border-top: 1px solid var(--line); align-items: start; }
.proj:first-of-type { border-top: 0; }
.proj h2 { font-size: 28px; line-height: 1.18; }
.proj .so { font-family: var(--font-h); font-size: clamp(54px, 6vw, 88px); font-weight: 800; color: var(--ink); letter-spacing: -.05em; line-height: .9; margin-bottom: 16px; }
.proj .so small { font-size: 20px; font-weight: 600; color: var(--accent-chu); letter-spacing: 0; }
.proj dl { margin: 20px 0 0; display: grid; grid-template-columns: auto 1fr; gap: 8px 18px; font-size: 15.5px; }
.proj dt { color: var(--muted); }
.proj dd { margin: 0; color: var(--ink); font-weight: 500; }
.proj-khac { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.proj-khac article { background: var(--bg-2); border-radius: 24px; padding: 30px 30px 28px; }
.proj-khac .so { font-family: var(--font-h); font-size: 46px; font-weight: 700; letter-spacing: -.04em; line-height: 1; color: var(--ink); }
.proj-khac .so small { font-size: 16px; font-weight: 600; color: var(--accent-chu); letter-spacing: 0; }
.proj-khac h3 { font-size: 20px; line-height: 1.25; margin-top: 14px; }
.proj-khac dl { margin: 14px 0 0; display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; font-size: 14.5px; }
.proj-khac dt { color: var(--muted); }
.proj-khac dd { margin: 0; color: var(--ink); font-weight: 500; }
.gal { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.gal a { border-radius: 16px; overflow: hidden; aspect-ratio: 1; background: var(--bg-2); display: block; cursor: zoom-in; }
.gal a:first-child { grid-column: span 2; grid-row: span 2; }
.gal img { width: 100%; height: 100%; object-fit: cover; object-position: 0 100%; transition: transform 1s var(--lo-xo); }
.gal a:hover img { transform: scale(1.05); }
.steps-ol { counter-reset: b; list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 16px; }
.steps-ol li { counter-increment: b; background: var(--bg-2); border-radius: var(--r); padding: 26px 24px 26px 78px; position: relative; color: var(--ink); font-family: var(--font-h); font-weight: 500; letter-spacing: -.01em; line-height: 1.35; }
.steps-ol li::before { content: counter(b); position: absolute; left: 22px; top: 22px; width: 40px; height: 40px; border-radius: 50%; background: var(--navy); color: var(--sun); display: grid; place-items: center; font-weight: 700; font-size: 16px; }

/* ---------- bài viết ---------- */
.art { max-width: 800px; margin: 0 auto; padding-top: 70px; }
.art h1 { font-size: clamp(30px, 4.2vw, 52px); line-height: 1.08; margin-bottom: 28px; }
.art .lead-img, .art figure { margin: 36px 0; }
.art figure img, .art .lead-img img { border-radius: var(--r); width: 100%; box-shadow: var(--vien); }
.art figcaption { font-size: 14px; color: var(--muted); margin-top: 12px; }
.art .body p { font-size: 19px; line-height: 1.75; color: #2e3a4d; margin-bottom: 1.2em; }
.art .cta-box { background: var(--navy); color: #d5deea; border-radius: var(--r); padding: 36px 40px; margin: 50px 0 0; display: flex; flex-wrap: wrap; gap: 20px 30px; align-items: center; justify-content: space-between; }
.art .cta-box b { display: block; color: #fff; font-family: var(--font-h); font-size: 22px; font-weight: 700; letter-spacing: -.03em; margin-bottom: 4px; }

/* ---------- xem ảnh lớn ---------- */
.lb { position: fixed; inset: 0; z-index: 60; display: grid; place-items: center; padding: 20px; background: rgba(6, 22, 43, .9); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); opacity: 0; visibility: hidden; transition: opacity .45s var(--lo-xo), visibility 0s linear .45s; touch-action: pan-y; }
.lb.mo { opacity: 1; visibility: visible; transition: opacity .45s var(--lo-xo); }
.lb img { max-width: min(100%, 1500px); max-height: 86vh; border-radius: 14px; transform: scale(.94); opacity: 0; transition: transform .6s var(--lo-xo), opacity .35s var(--lo-xo); box-shadow: 0 40px 80px -30px rgba(0, 0, 0, .7); }
.lb.mo img.xong { transform: none; opacity: 1; }
.lb button { position: absolute; width: 52px; height: 52px; border-radius: 50%; border: 0; background: rgba(255, 255, 255, .14); color: #fff; cursor: pointer; display: grid; place-items: center; box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .25); transition: background .4s var(--lo-xo), transform .4s var(--lo-xo); }
.lb button:hover { background: rgba(255, 255, 255, .26); transform: scale(1.06); }
.lb .dong { right: 20px; top: 20px; }
.lb .truoc { left: 20px; top: 50%; margin-top: -26px; }
.lb .sau { right: 20px; top: 50%; margin-top: -26px; }
.lb .truoc .ic { transform: rotate(180deg); }
.lb .dem { position: absolute; left: 0; right: 0; bottom: 18px; text-align: center; color: #cfd9e6; font-size: 14px; padding: 0 70px; }

/* ---------- liên hệ ---------- */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.cbox { background: var(--bg-2); border-radius: var(--r-lg); padding: 44px 46px; }
.cbox h2 { font-size: 28px; margin-bottom: 22px; }
.cbox li { display: flex; gap: 16px; padding: 16px 0; border-top: 1px solid var(--line); }
.cbox li:first-child { border-top: 0; }
.cbox .ic { color: var(--accent-chu); width: 22px; height: 22px; margin-top: 3px; }
.cbox b { color: var(--ink); font-family: var(--font-h); font-weight: 600; display: block; }
.cbox a:hover { color: var(--blue); }

/* ---------- chuyển động ---------- */
.tilt { transform: perspective(900px) translateY(var(--ty, 0px)) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)); transition: transform .7s var(--lo-xo), box-shadow .6s var(--lo-xo); will-change: transform; }
.tilt.dang { transition: transform .1s linear, box-shadow .6s var(--lo-xo); }
.tilt:hover { --ty: -6px; }
html.js .rv { opacity: 0; transform: translateY(18px); transition: opacity .6s var(--lo-xo), transform .6s var(--lo-xo); transition-delay: calc(var(--i, 0) * 60ms); }
html.js .rv.hien { opacity: 1; transform: none; }

@media (max-width: 1100px) {
  .nav { position: fixed; inset: 0; z-index: -1; margin: 0; flex-direction: column; align-items: flex-start; justify-content: center; gap: 4px; padding: 110px 30px 40px; background: #fff; opacity: 0; visibility: hidden; transition: opacity .5s var(--lo-xo), visibility 0s linear .5s; }
  .nav.mo { opacity: 1; visibility: visible; transition: opacity .5s var(--lo-xo); }
  .nav a { font-size: clamp(30px, 8vw, 44px); font-weight: 700; letter-spacing: -.04em; padding: 8px 0; border-radius: 0; opacity: 0; transform: translateY(30px); transition: opacity .7s var(--lo-xo), transform .7s var(--lo-xo); }
  .nav a[aria-current="page"] { background: none; color: var(--accent-chu); }
  .nav.mo a { opacity: 1; transform: none; }
  .nav.mo a:nth-child(2) { transition-delay: .05s; }
  .nav.mo a:nth-child(3) { transition-delay: .1s; }
  .nav.mo a:nth-child(4) { transition-delay: .15s; }
  .nav.mo a:nth-child(5) { transition-delay: .2s; }
  .nav.mo a:nth-child(6) { transition-delay: .25s; }
  .nav.mo a:nth-child(7) { transition-delay: .3s; }
  .nav .btn { display: inline-flex; margin-top: 22px; font-size: 17px; letter-spacing: -.01em; padding: 0 26px; color: #fff; border-radius: 999px; }
  body:has(.nav.mo) .fab { opacity: 0; visibility: hidden; }
  .nav-btn { display: block; margin-left: auto; }
  .site-header .goi { display: none; }
  .prods, .posts.c3, .posts { grid-template-columns: repeat(2, 1fr); }
  .cats { grid-template-columns: 1fr 1fr; grid-template-rows: 220px 220px 220px; }
  .cat:nth-of-type(1) { grid-row: span 1; grid-column: span 2; }
  .strip ul { grid-template-columns: repeat(2, 1fr); }
  .strip li:nth-child(3) { box-shadow: none; }
  .strip li:nth-child(n+3) { border-top: 1px solid rgba(255, 255, 255, .12); }
  .foot .cols { grid-template-columns: 1fr 1fr; padding-top: 70px; }
  .calc .box { grid-template-columns: 1fr; padding: 50px 40px; }
  .split .wrap { grid-template-columns: 1fr; gap: 40px; }
  .proj { grid-template-columns: 1fr; gap: 24px; }
  .proj-khac { grid-template-columns: repeat(2, 1fr); }
  .hero .in { padding: 0 34px 36px; }
  .hero .so-lieu li { padding: 18px 20px 20px 34px; flex-direction: column; gap: 4px; }
  .hero .so-lieu li + li { padding-left: 20px; }
  .page-head { padding: 54px 40px 46px; }
  .contact, .vitri .o { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .wrap { padding: 0 16px; }
  .site-header { padding: 8px 10px 0; top: 8px; }
  .site-header .dao { padding: 7px 7px 7px 14px; }
  .logo img { width: 40px; }
  .logo b { font-size: 17px; }
  .hero { min-height: 620px; border-radius: 26px; margin-top: 12px; }
  .hero .in { padding: 0 22px 28px; }
  .hero .cta .btn { flex: 1 1 100%; }
  .hero .so-lieu { grid-template-columns: 1fr 1fr; }
  .hero .so-lieu li:nth-child(3) { display: none; }
  .hero .so-lieu li { padding: 14px 12px 16px 22px; }
  .cats { grid-template-columns: 1fr 1fr; grid-template-rows: 190px 150px 150px; gap: 10px; margin-top: 10px; }
  .cat .t { left: 16px; right: 12px; bottom: 14px; }
  .cat h3 { font-size: 18px; }
  .cat span { width: 34px; height: 34px; }
  .split, .calc, .vitri, .fp { margin-top: 84px; }
  .sec { padding-top: 84px; }
  .sec-last { padding-bottom: 84px; }
  .sec-sm { padding-top: 64px; }
  .sec-head { margin-bottom: 36px; }
  .prods { grid-template-columns: repeat(2, 1fr); gap: 26px 14px; }
  .prod h3 { font-size: 16px; margin: 18px 2px 6px; }
  .prod .gia { font-size: 14px; margin: 0 2px; }
  .prod ul.ts { margin: 10px 2px 0; font-size: 13.5px; }
  .prod .tag { left: 10px; top: 10px; font-size: 9.5px; padding: 4px 9px; }
  .posts, .posts.c3 { grid-template-columns: 1fr; gap: 18px; }
  .split .ph, .split .ph:nth-child(2) { transform: none; }
  .split .phs { padding: 0; gap: 10px; }
  .brands { padding-top: 70px; }
  .brands ul { gap: 40px; padding-right: 40px; }
  .calc .box { padding: 40px 24px; gap: 30px; }
  .vitri .trai { padding: 34px 24px; }
  .vitri .phai { padding: 30px 22px 26px; }
  .vitri .cot { height: 90px; gap: 4px; }
  .vitri .thang { gap: 4px; font-size: 10.5px; }
  .qt { padding: 20px 16px; border-radius: 24px; margin-top: 10px; }
  .fp .in { padding: 26px 20px; }
  .fp .nut .btn { flex: 1 1 100%; }
  .strip ul { grid-template-columns: 1fr; }
  .strip li { padding: 24px 6px; border-top: 1px solid rgba(255, 255, 255, .12); box-shadow: none !important; }
  .strip li:first-child { border-top: 0; }
  .foot .cols { grid-template-columns: 1fr; gap: 34px; padding: 60px 0 40px; }
  .page-head { padding: 38px 22px 34px; border-radius: 26px; margin-top: 12px; }
  .gal { grid-template-columns: repeat(2, 1fr); }
  .proj-khac { grid-template-columns: 1fr; }
  .proj-khac article { padding: 24px 22px; }
  .art { padding-top: 40px; }
  .art .body p { font-size: 17.5px; }
  .art .cta-box { padding: 28px 22px; }
  .cbox { padding: 30px 22px; }
  .faq summary { padding: 20px 46px 20px 0; }
  .faq .a { padding: 0 0 22px; }
  .vt th, .vt td { padding: 13px 14px; font-size: 15px; }
  .loc { display: none; }
  .loc-chon { display: block; }
  .fab { right: 12px; bottom: 12px; gap: 8px; }
  .fab a { width: 46px; height: 46px; }
  .fab .fb { display: none; }
  .lb button { width: 44px; height: 44px; }
  .lb .truoc { left: 8px; }
  .lb .sau { right: 8px; }
  .lb .dong { right: 10px; top: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
  html.js .rv { opacity: 1; transform: none; filter: none; }
  ::view-transition-old(root), ::view-transition-new(root) { animation: none; }
}
@media print {
  .site-header, .fab, .fp, .strip, .lb { display: none !important; }
  html.js .rv { opacity: 1; transform: none; filter: none; }
}