:root {
  --ink: #0a0e13;
  --panel: #121922;
  --panel-2: #1a232e;
  --line: #243040;
  --txt: #e8edf2;
  --muted: #8d9aab;
  --volt: #1fe38a;
  --volt-d: #10b86c;
  --blue: #3a8bff;
  --paper: #ffffff;
  --tint: #f2f5f8;
  --ink-txt: #121820;
  --ink-muted: #5a6676;
  --r: 14px;
  --lw: 300px;
  font-family: "Inter", "Segoe UI", "Leelawadee UI", "Noto Sans Thai", Tahoma, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body { margin: 0; background: var(--paper); color: var(--ink-txt); line-height: 1.6; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
h1, h2, h3 { line-height: 1.2; margin: 0; overflow-wrap: break-word; hyphens: auto; }
body { overflow-wrap: break-word; }
.grid > *, .ac-grid > *, .sim-grid > *, .markets > *, .stack-row > *, .stack-feat > *, .common li, .stats li, .card dl > div { min-width: 0; }
.wrap { width: min(1200px, 100% - 40px); margin: 0 auto; }

/* 阿拉伯语右到左：常用部件改用逻辑方向 */
[dir="rtl"] .why-list li { padding-left: 0; padding-right: 58px; }
[dir="rtl"] .why-list li::before { left: auto; right: 0; }
[dir="rtl"] .card.hit::before { right: auto; left: 12px; }
[dir="rtl"] .std { left: auto; right: 16px; }
[dir="rtl"] .x { right: auto; left: 14px; }
[dir="rtl"] .m-body h3 { padding-right: 0; padding-left: 40px; }
[dir="rtl"] .m-body th, [dir="rtl"] .m-body td { text-align: right; }
[dir="rtl"] .m-body th { padding-right: 0; padding-left: 14px; }
[dir="rtl"] .hero::after { background: radial-gradient(70% 80% at 20% 40%, rgba(31,227,138,.16), transparent 60%), linear-gradient(270deg, var(--ink) 25%, rgba(10,14,19,.4)); }
[dir="rtl"] .badge-kw { left: auto; right: -30px; }
[dir="rtl"] .finder-top label { direction: rtl; }
[dir="rtl"] .bl { padding-right: 0; padding-left: 16px; }

/* ---------- 按钮 ---------- */
.btn { display: inline-flex; align-items: center; gap: 8px; background: var(--volt); color: #04150c; font-weight: 700; padding: 13px 26px; border-radius: 999px; border: 0; transition: transform .15s, background .15s; }
.btn:hover { background: #4dffaa; transform: translateY(-1px); }
.btn-sm { padding: 8px 18px; font-size: 14px; }
.btn-ghost { background: transparent; color: var(--txt); box-shadow: inset 0 0 0 1.5px rgba(255,255,255,.35); }
.btn-ghost:hover { background: rgba(255,255,255,.08); }

/* ---------- 导航 ---------- */
.nav { position: fixed; inset: 0 0 auto; z-index: 50; transition: background .25s, box-shadow .25s; }
.nav.solid, .nav.open { background: rgba(10,14,19,.92); backdrop-filter: blur(12px); box-shadow: 0 1px 0 var(--line); }
.nav-in { display: flex; align-items: center; gap: 28px; height: 68px; }
.brand img { height: 34px; width: auto; background: #fff; border-radius: 6px; padding: 3px 6px; }
.links { display: flex; gap: 24px; margin-right: auto; }
.links a { color: #c9d3de; font-size: 15px; font-weight: 500; white-space: nowrap; }
.btn { white-space: nowrap; }
.links a:hover { color: var(--volt); }
.nav-r { display: flex; align-items: center; gap: 12px; }
.lang { display: inline-flex; align-items: center; gap: 4px; border: 1px solid rgba(255,255,255,.3); border-radius: 999px; padding: 0 4px 0 10px; height: 34px; font-size: 13px; color: #fff; }
.lang:hover, .lang:focus-within { border-color: var(--volt); }
.lang select { appearance: none; -webkit-appearance: none; background: transparent; border: 0; color: #fff; font: inherit; padding: 0 8px 0 2px; height: 100%; cursor: pointer; outline: none; }
.lang select option { color: #111; background: #fff; }
.burger { display: none; background: none; border: 0; width: 40px; height: 40px; padding: 10px 8px; flex-direction: column; justify-content: space-between; }
.burger span { display: block; height: 2px; background: #fff; border-radius: 2px; }

/* ---------- Hero ---------- */
.hero { position: relative; background: var(--ink); color: var(--txt); padding: 120px 0 48px; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: .28; }
.hero::after { content: ""; position: absolute; inset: 0; background: radial-gradient(70% 80% at 80% 40%, rgba(31,227,138,.16), transparent 60%), linear-gradient(90deg, var(--ink) 25%, rgba(10,14,19,.4)); pointer-events: none; }
.hero-in { position: relative; z-index: 1; display: grid; grid-template-columns: 1.15fr .85fr; align-items: center; gap: 40px; min-height: 520px; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; font-size: 14px; color: var(--volt); letter-spacing: .04em; margin: 0 0 18px; font-weight: 600; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--volt); box-shadow: 0 0 0 4px rgba(31,227,138,.25); animation: pulse 2s infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 9px rgba(31,227,138,0); } }
.hero h1 { font-size: clamp(40px, 6vw, 72px); font-weight: 800; letter-spacing: -.02em; }
.hero h1 em { font-style: normal; color: var(--volt); }
.lead { font-size: 18px; color: #b8c4d1; max-width: 560px; margin: 22px 0 32px; }
.cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-prod { position: relative; justify-self: center; }
.hero-prod img { max-height: 500px; width: auto; filter: drop-shadow(0 30px 40px rgba(0,0,0,.6)); }
.badge-kw { position: absolute; left: -30px; bottom: 60px; background: rgba(18,25,34,.9); border: 1px solid var(--line); border-radius: var(--r); padding: 14px 18px; display: grid; backdrop-filter: blur(6px); }
.badge-kw b { font-size: 40px; line-height: 1; color: var(--volt); }
.badge-kw small { font-size: 14px; color: var(--muted); margin-left: 2px; }
.badge-kw span { font-size: 13px; color: var(--muted); }
.stats { position: relative; z-index: 1; list-style: none; padding: 26px 0 0; margin: 40px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; border-top: 1px solid var(--line); }
.stats li { display: grid; gap: 4px; }
.stats b { font-size: 34px; font-weight: 800; }
.stats b small { font-size: 16px; color: var(--muted); margin-left: 3px; }
.stats span { color: var(--muted); font-size: 14px; }

/* ---------- 通用 section ---------- */
.sec { padding: 96px 0; }
.sec.dark { background: var(--ink); color: var(--txt); }
.sec.tint { background: var(--tint); }
.sec-head { max-width: 760px; margin-bottom: 44px; }
.kicker { font-size: 13px; font-weight: 700; letter-spacing: .16em; color: var(--volt-d); margin: 0 0 12px; }
.dark .kicker { color: var(--volt); }
.sec h2 { font-size: clamp(30px, 4vw, 44px); font-weight: 800; letter-spacing: -.01em; }
.sub { font-size: 17px; color: var(--ink-muted); margin: 16px 0 0; }
.dark .sub { color: var(--muted); }

/* ---------- 功率选型 ---------- */
.finder { background: var(--panel); border: 1px solid var(--line); border-radius: 20px; padding: 28px 28px 20px; margin-bottom: 40px; }
.finder-top { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 10px; }
.finder-top label { color: var(--muted); font-size: 15px; }
.finder-top output { font-size: 40px; font-weight: 800; color: var(--volt); }
.track-row { margin-left: var(--lw); position: relative; padding-bottom: 26px; }
#kw { width: 100%; appearance: none; -webkit-appearance: none; height: 6px; border-radius: 6px; background: linear-gradient(90deg, #2c6bd6, var(--volt)); outline: none; margin: 12px 0; }
#kw::-webkit-slider-thumb { -webkit-appearance: none; width: 26px; height: 26px; border-radius: 50%; background: #fff; border: 5px solid var(--volt); box-shadow: 0 0 0 6px rgba(31,227,138,.2); cursor: grab; }
#kw::-moz-range-thumb { width: 18px; height: 18px; border-radius: 50%; background: #fff; border: 5px solid var(--volt); cursor: grab; }
.scale { position: absolute; left: 0; right: 0; bottom: 0; height: 20px; font-size: 12px; color: var(--muted); }
.scale span { position: absolute; transform: translateX(-50%); white-space: nowrap; }
.scale span:first-child { transform: none; }
.scale span:last-child { transform: translateX(-100%); }
.scale span:last-child::after { content: " kW"; }
.bars { position: relative; display: grid; gap: 2px; margin-top: 14px; }
.bar { display: grid; grid-template-columns: var(--lw) 1fr; align-items: center; background: none; border: 0; color: var(--muted); text-align: left; padding: 5px 0; border-radius: 6px; font-size: 14px; }
.bar:hover { color: var(--txt); background: rgba(255,255,255,.03); }
.bl { padding-right: 16px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bt { position: relative; height: 10px; border-radius: 6px; background: repeating-linear-gradient(90deg, rgba(255,255,255,.05) 0 1px, transparent 1px 10%); }
.bt i { position: absolute; top: 0; bottom: 0; border-radius: 6px; background: #3b4a5c; min-width: 10px; transition: background .2s, box-shadow .2s; }
.bar.hit { color: #fff; }
.bar.hit .bt i { background: var(--volt); box-shadow: 0 0 12px rgba(31,227,138,.6); }
.cursor { position: absolute; top: -6px; bottom: -6px; width: 2px; background: rgba(255,255,255,.7); left: calc(var(--lw) + (100% - var(--lw)) * var(--x, .5)); pointer-events: none; transition: left .05s; }

/* ---------- 直流卡片 ---------- */
.tabs { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; }
.tabs button { background: transparent; border: 1px solid var(--line); color: var(--muted); padding: 9px 18px; border-radius: 999px; font-size: 14px; }
.tabs button:hover { color: var(--txt); border-color: #3a4a5e; }
.tabs button.on { background: var(--txt); color: var(--ink); border-color: var(--txt); font-weight: 600; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 20px; }
.card { position: relative; background: var(--panel); border: 1px solid var(--line); border-radius: 18px; overflow: hidden; cursor: pointer; display: flex; flex-direction: column; transition: transform .2s, border-color .2s, box-shadow .2s; outline: none; }
.card:hover, .card:focus-visible { transform: translateY(-4px); border-color: #3a4a5e; }
.card.hit { border-color: var(--volt); box-shadow: 0 0 0 1px var(--volt), 0 12px 40px -12px rgba(31,227,138,.45); }
.card.hit::before { content: "✓"; position: absolute; top: 12px; right: 12px; z-index: 2; width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; background: var(--volt); color: #04150c; font-weight: 800; font-size: 14px; }
.card.flag .card-img { background: linear-gradient(160deg, #f4f7fa, #dfe9e4); }
.card-img { background: #eef1f4; height: 250px; padding: 22px; }
.card-img img { width: 100%; height: 100%; object-fit: contain; mix-blend-mode: multiply; }
.card-body { padding: 18px 20px 20px; display: flex; flex-direction: column; flex: 1; }
.card-tag { margin: 0 0 6px; font-size: 12.5px; color: var(--volt); font-weight: 600; }
.card h3 { font-size: 17.5px; font-weight: 700; margin-bottom: 14px; }
.card dl { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 12px; margin: 0 0 16px; }
.card dt { font-size: 12px; color: var(--muted); }
.card dd { margin: 0; font-size: 14.5px; font-weight: 600; }
.more { margin-top: auto; font-size: 14px; color: var(--muted); }
.card:hover .more { color: var(--volt); }

.common { margin-top: 56px; border-top: 1px solid var(--line); padding-top: 36px; }
.common h3 { font-size: 20px; margin-bottom: 22px; }
.common ul { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.common li { display: grid; gap: 4px; }
.common b { font-size: 17px; color: var(--volt); }
.common li > span { font-size: 13.5px; color: var(--muted); }

/* ---------- Why ---------- */
.why-in { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.why-img img { border-radius: 22px; aspect-ratio: 4 / 4.2; object-fit: cover; width: 100%; }
.why h2 { margin-bottom: 30px; }
.why-list { list-style: none; counter-reset: w; padding: 0; margin: 0; display: grid; gap: 26px; }
.why-list li { counter-increment: w; position: relative; padding-left: 58px; }
.why-list li::before { content: "0" counter(w); position: absolute; left: 0; top: -2px; font-size: 26px; font-weight: 800; color: var(--volt-d); }
.why-list b { font-size: 19px; }
.why-list p { margin: 6px 0 0; color: var(--ink-muted); }

/* ---------- 充电堆 ---------- */
.stack-hero { border-radius: 22px; overflow: hidden; background: #e6e6e6; }
.stack-hero img { width: 100%; max-height: 520px; object-fit: cover; }
.stack-row { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; margin: 22px 0 40px; }
.stk { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 20px; display: grid; gap: 6px; }
.stk b { font-size: 34px; font-weight: 800; color: #fff; line-height: 1.1; margin-bottom: 6px; }
.stk b small { font-size: 15px; color: var(--volt); margin-left: 3px; }
.stk > span { font-size: 13.5px; color: var(--muted); }
.stk:last-child { border-color: var(--volt); }
.stack-feat { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 16px; overflow: hidden; }
.stack-feat > div { background: var(--ink); padding: 22px; display: grid; gap: 4px; }
.stack-feat b { font-size: 17px; }
.stack-feat > div > span { color: var(--muted); font-size: 14px; }

/* ---------- 交流 ---------- */
.ac-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 18px; }
.ac { border: 1px solid #e3e8ee; border-radius: 16px; padding: 16px 16px 18px; background: #fff; transition: border-color .2s, transform .2s; }
.ac:hover { border-color: #b9c4d0; transform: translateY(-3px); }
.ac-img { background: var(--tint); border-radius: 10px; height: 190px; padding: 14px; margin-bottom: 14px; }
.ac-img img { width: 100%; height: 100%; object-fit: contain; mix-blend-mode: multiply; }
.ac h3 { font-size: 15.5px; font-weight: 700; margin-bottom: 4px; }
.ac p { margin: 0; font-size: 13.5px; color: var(--ink-muted); }

/* ---------- 模拟器 ---------- */
.sim-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.sim { background: #fff; border-radius: 18px; padding: 18px 18px 22px; position: relative; }
.sim-img { height: 220px; margin-bottom: 14px; }
.sim-img img { width: 100%; height: 100%; object-fit: contain; }
.std { position: absolute; top: 16px; left: 16px; background: var(--ink); color: var(--volt); font-size: 12px; font-weight: 700; padding: 4px 10px; border-radius: 999px; }
.sim h3 { font-size: 17px; }
.sim p { margin: 4px 0 0; color: var(--ink-muted); font-size: 13.5px; }

/* ---------- 平台 ---------- */
.plat { display: grid; grid-template-columns: .9fr 1.1fr; gap: 56px; align-items: center; }
.chips { list-style: none; padding: 0; margin: 28px 0 0; display: flex; flex-wrap: wrap; gap: 10px; }
.chips li { background: var(--tint); border-radius: 999px; padding: 8px 16px; font-size: 14px; font-weight: 600; }
.plat-img { background: #fff; border: 1px solid #e3e8ee; border-radius: 20px; padding: 18px 12px; }
.plat-img svg { width: 100%; height: auto; display: block; overflow: visible; }
.plat-img text { font-size: 15px; font-weight: 700; fill: var(--ink-txt); text-anchor: middle; paint-order: stroke; stroke: #fff; stroke-width: 5px; stroke-linejoin: round; }
.plat-img .nd circle { fill: #eef4ff; stroke: #c9daf5; stroke-width: 1.5; }
.plat-img .hub circle { fill: #e6f9ef; stroke: var(--volt-d); stroke-width: 2; }
.plat-img .ic { fill: none; stroke: #2a63c9; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.plat-img .hub .ic { stroke: var(--volt-d); }
.plat-img line, .plat-img path.ln-soft { stroke: #3a7be0; stroke-width: 1.8; }
.plat-img .ln-in { stroke-dasharray: 5 5; }
.plat-img .ln-soft { stroke: #9dbdf0; }
.plat-img .ln-energy { stroke: var(--volt-d); stroke-width: 2.5; }
.plat-img .lb-energy { fill: var(--volt-d); font-size: 14px; }
.plat-img marker path { fill: #3a7be0; }

/* ---------- 关于 ---------- */
.about-in { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.about-in p { color: #b8c4d1; font-size: 16.5px; margin-top: 20px; }
.map { opacity: .9; }
.mk-title { font-size: 20px; margin: 56px 0 22px; }
.markets { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.markets > div { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 20px; }
.markets b { font-size: 16px; color: var(--volt); }
.markets p { margin: 8px 0 0; color: #b8c4d1; font-size: 14px; }
.certs { display: flex; gap: 18px; margin-top: 32px; flex-wrap: wrap; }
.certs img { height: 64px; width: auto; max-width: 100%; object-fit: contain; background: #fff; border-radius: 10px; padding: 8px 14px; }
.partners { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
.partners div { background: #fff; border-radius: 10px; height: 78px; padding: 10px 14px; }
.partners img { width: 100%; height: 100%; object-fit: contain; }

/* ---------- 联系 ---------- */
.contact { background: linear-gradient(135deg, #0f2a1f, #0a0e13 60%); color: var(--txt); }
.contact .kicker { color: var(--volt); }
.contact .sub { color: #b8c4d1; }
.contact-in { display: grid; grid-template-columns: 1.4fr .6fr; gap: 48px; align-items: center; }
.ct { list-style: none; padding: 0; margin: 32px 0 0; display: grid; gap: 14px; font-size: 17px; }
.ct li { display: flex; gap: 14px; align-items: flex-start; }
.ct i { font-style: normal; width: 34px; height: 34px; flex: none; border-radius: 50%; background: rgba(31,227,138,.14); color: var(--volt); display: grid; place-items: center; font-size: 15px; }
.ct a:hover { color: var(--volt); }
.qr { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.qr figure { margin: 0; text-align: center; }
.qr img { background: #fff; border-radius: 12px; padding: 8px; width: 100%; }
.qr figcaption { margin-top: 8px; font-size: 13px; color: var(--muted); }
.foot { background: #06090c; color: #6b7889; font-size: 13px; padding: 24px 0; }

/* ---------- 参数弹窗 ---------- */
dialog { border: 0; padding: 0; border-radius: 22px; width: min(1000px, 100% - 32px); max-height: calc(100vh - 40px); background: #fff; color: var(--ink-txt); }
dialog::backdrop { background: rgba(5,8,12,.72); backdrop-filter: blur(4px); }
.x { position: absolute; top: 12px; right: 14px; z-index: 2; background: var(--tint); border: 0; width: 38px; height: 38px; border-radius: 50%; font-size: 22px; line-height: 1; }
.x:hover { background: #e2e7ec; }
.m-in { display: grid; grid-template-columns: .85fr 1.15fr; }
.m-img { background: var(--tint); padding: 34px; display: flex; flex-direction: column; justify-content: center; gap: 16px; min-height: 100%; }
.m-img > img { height: 420px; width: 100%; object-fit: contain; mix-blend-mode: multiply; }
.m-thumbs { display: flex; gap: 8px; justify-content: center; }
.m-thumbs button { width: 58px; height: 58px; padding: 4px; border-radius: 10px; border: 2px solid transparent; background: #fff; }
.m-thumbs button.on { border-color: var(--volt-d); }
.m-thumbs img { width: 100%; height: 100%; object-fit: contain; }
.m-body { padding: 34px 34px 30px; overflow: auto; max-height: calc(100vh - 40px); }
.m-tag { margin: 0 0 6px; color: var(--volt-d); font-weight: 700; font-size: 13.5px; }
.m-body h3 { font-size: 24px; margin-bottom: 18px; padding-right: 40px; }
.m-body table { width: 100%; border-collapse: collapse; font-size: 14px; margin-bottom: 24px; }
.m-body th, .m-body td { text-align: left; padding: 9px 0; border-bottom: 1px solid #e9edf1; vertical-align: top; }
.m-body th { color: var(--ink-muted); font-weight: 500; width: 36%; padding-right: 14px; }
.m-body td { font-weight: 600; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .links { gap: 16px; }
  .links a { font-size: 14px; }
  .common ul { grid-template-columns: repeat(3, 1fr); }
  .stk b { font-size: 28px; }
  .partners { grid-template-columns: repeat(4, 1fr); }
  :root { --lw: 240px; }
}
@media (max-width: 1239px) {
  .nav-in { gap: 16px; }
  .links { position: fixed; top: 68px; left: 0; right: 0; flex-direction: column; gap: 0; background: rgba(10,14,19,.97); padding: 8px 20px 20px; display: none; }
  .nav.open .links { display: flex; }
  .links a { padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 16px; }
  .burger { display: flex; }
  .nav-r { margin-left: auto; }
  [dir="rtl"] .nav-r { margin-left: 0; margin-right: auto; }
}
@media (max-width: 900px) {
  .nav-r .btn-sm { display: none; }
  .hero-in, .why-in, .plat, .about-in, .contact-in, .m-in { grid-template-columns: 1fr; }
  .hero-in { min-height: 0; }
  .hero-prod img { max-height: 340px; }
  .badge-kw { left: auto; right: -6px; bottom: 20px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .sim-grid { grid-template-columns: repeat(2, 1fr); }
  .markets { grid-template-columns: repeat(2, 1fr); }
  .stack-feat { grid-template-columns: 1fr 1fr; }
  .m-img { padding: 24px; }
  .m-img > img { height: 240px; }
  .m-body { max-height: none; }
  dialog { overflow: auto; }
  .qr { max-width: 320px; }
}
@media (max-width: 640px) {
  :root { --lw: 0px; }
  .wrap { width: calc(100% - 32px); }
  .sec { padding: 68px 0; }
  .hero { padding-top: 96px; }
  .lead { font-size: 16px; }
  .finder { padding: 20px 16px 14px; }
  .bar { grid-template-columns: 1fr; gap: 4px; }
  .bl { white-space: normal; font-size: 13px; }
  .cursor { display: none; }
  .common ul, .stack-row, .markets, .stack-feat { grid-template-columns: 1fr 1fr; }
  .partners { grid-template-columns: repeat(3, 1fr); }
  .card dl { gap: 8px; }
  .stats b { font-size: 28px; }
}
@media (max-width: 420px) {
  .sim-grid, .ac-grid { grid-template-columns: 1fr 1fr; }
  .markets, .stack-feat { grid-template-columns: 1fr; }
}