:root {
  --ink: #0d1a14;
  --ink2: #3c4a43;
  --mute: #6b7872;
  --line: #e2e8e4;
  --bg: #ffffff;
  --bg2: #f3f6f4;
  --g: #12a150;
  --g2: #0b7d3d;
  --gl: #e3f5ea;
  --dark: #0d1a14;
  --r: 14px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --head: "Manrope", "Inter", system-ui, sans-serif;
  --shadow: 0 1px 2px rgba(13,26,20,.06), 0 8px 24px rgba(13,26,20,.06);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; -webkit-text-size-adjust: 100%; }
body { margin: 0; font: 16px/1.6 var(--font); color: var(--ink); background: var(--bg); overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--head); line-height: 1.15; margin: 0 0 .5em; letter-spacing: -.01em; }
h2 { font-size: clamp(26px, 3.4vw, 38px); }
h3 { font-size: 19px; }
button, input, select, textarea { font: inherit; color: inherit; }
.wrap { width: min(1200px, 100% - 32px); margin-inline: auto; }

/* 按钮 */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 48px; padding: 0 22px; border-radius: 999px; border: 1.5px solid transparent; font-weight: 600; cursor: pointer; transition: .15s; white-space: nowrap; background: none; }
.btn.sm { height: 38px; padding: 0 16px; font-size: 14px; }
.btn.solid { background: var(--g); color: #fff; }
.btn.solid:hover { background: var(--g2); }
.btn.ghost { border-color: rgba(255,255,255,.55); color: #fff; }
.btn.ghost:hover { background: rgba(255,255,255,.12); }
.btn.line { border-color: var(--line); color: var(--ink); }
.btn.line:hover { border-color: var(--g); color: var(--g2); }
.btn.ghost-d { color: #fff; border-color: rgba(255,255,255,.3); }

/* 顶栏 */
.top { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.92); backdrop-filter: saturate(1.4) blur(12px); border-bottom: 1px solid var(--line); }
.top-in { display: flex; align-items: center; gap: 24px; height: 64px; }
.logo { display: flex; align-items: center; gap: 10px; font: 800 18px/1 var(--head); letter-spacing: .08em; }
.logo svg { width: 30px; height: 30px; }
.logo rect { fill: var(--g); }
.logo path { fill: #fff; }
.logo.sm { font-size: 15px; }
.logo.sm svg { width: 24px; height: 24px; }
.nav { display: flex; gap: 22px; margin-inline-start: auto; }
.nav a { font-size: 15px; font-weight: 500; color: var(--ink2); padding: 6px 0; }
.nav a:hover { color: var(--g2); }
.top-r { display: flex; align-items: center; gap: 12px; }
.lang { position: relative; }
#lang-btn { display: flex; align-items: center; gap: 6px; height: 38px; padding: 0 12px; border: 1px solid var(--line); border-radius: 999px; background: #fff; cursor: pointer; font-size: 14px; font-weight: 600; }
#lang-list { position: absolute; inset-inline-end: 0; top: 46px; margin: 0; padding: 6px; list-style: none; background: #fff; border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow); min-width: 230px; max-height: 70vh; overflow: auto; }
#lang-list li { padding: 8px 12px; border-radius: 8px; cursor: pointer; font-size: 15px; display: flex; align-items: center; gap: 10px; }
#lang-list li small { margin-inline-start: auto; }
#lang-list li span { white-space: nowrap; }
.flag { display: inline-flex; flex: none; width: 22px; height: 15px; border-radius: 3px; overflow: hidden; box-shadow: 0 0 0 1px rgba(0,0,0,.12); }
.flag svg { width: 100%; height: 100%; display: block; }
.trust { display: inline-flex; align-items: center; gap: 10px; margin-top: 22px; padding: 10px 18px 10px 12px; border-radius: 14px; background: rgba(18,161,80,.18); border: 1px solid rgba(126,226,168,.45); }
.trust svg { flex: none; fill: rgba(126,226,168,.18); stroke: #7ee2a8; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.trust b { font: 800 clamp(36px, 4.6vw, 52px)/1 var(--head); letter-spacing: -.03em; color: #fff; direction: ltr; unicode-bidi: isolate; }
.trust span { font-size: 17px; font-weight: 700; color: #b9f0cf; }
.trust svg { width: 38px; height: 38px; }

/* 发布会式大数字 */
.bigstat { position: relative; overflow: hidden; background: #040806; color: #fff; text-align: center; padding: clamp(72px, 11vw, 140px) 0; }
.bigstat::before { content: ""; position: absolute; inset: 0; background: radial-gradient(ellipse 55% 60% at 50% 55%, rgba(18,161,80,.28), transparent 70%); pointer-events: none; }
.bigstat .wrap { position: relative; }
.bs-kicker { margin: 0 0 10px; font-size: clamp(15px, 1.6vw, 20px); font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: #7ee2a8; }
.bs-num { margin: 0; font: 800 clamp(96px, 21vw, 260px)/.95 var(--head); letter-spacing: -.05em; direction: ltr; unicode-bidi: isolate; }
.bs-num span, .bs-num small { background: linear-gradient(180deg, #ffffff 25%, #7ee2a8 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.bs-num small { font-size: .42em; letter-spacing: 0; margin-inline-start: .04em; vertical-align: .9em; }
.bs-label { margin: 18px 0 0; font: 800 clamp(26px, 4vw, 48px)/1.2 var(--head); }
.bs-sub { margin: 14px auto 0; max-width: 40ch; font-size: clamp(16px, 1.8vw, 21px); color: rgba(255,255,255,.62); }
#lang-list li small { color: var(--mute); }
#lang-list li:hover, #lang-list li[aria-selected="true"] { background: var(--gl); }
.burger { display: none; width: 40px; height: 40px; border: 0; background: none; cursor: pointer; flex-direction: column; justify-content: center; gap: 6px; padding: 0 9px; }
.burger span { height: 2px; background: var(--ink); border-radius: 2px; transition: .2s; }

/* 首屏 */
.hero { position: relative; color: #fff; overflow: hidden; padding: 56px 0 0; }
.hero-bg { position: absolute; inset: 0; background: linear-gradient(100deg, rgba(8,20,14,.92) 0%, rgba(8,20,14,.78) 45%, rgba(8,20,14,.35) 100%), url("img/bg-house4.webp") center/cover; }
.hero-in { position: relative; display: grid; grid-template-columns: 1.15fr .85fr; gap: 32px; align-items: center; min-height: 520px; }
.kicker { display: inline-block; margin: 0 0 16px; padding: 5px 12px; border-radius: 999px; background: rgba(18,161,80,.22); color: #7ee2a8; font-weight: 600; font-size: 14px; letter-spacing: .02em; }
.hero h1 { font-size: clamp(34px, 5.2vw, 60px); font-weight: 800; margin-bottom: 18px; }
.lead { font-size: 18px; color: var(--ink2); max-width: 60ch; }
.hero .lead { color: rgba(255,255,255,.82); }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.hero-img { display: flex; justify-content: center; }
.hero-img img { max-height: 520px; width: auto; filter: drop-shadow(0 30px 40px rgba(0,0,0,.45)); }
.kpis { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); margin: 40px 0 0; border-top: 1px solid rgba(255,255,255,.16); }
.kpis div { padding: 22px 0 28px; }
.kpis div + div { padding-inline-start: 24px; border-inline-start: 1px solid rgba(255,255,255,.16); }
.kpis dt { font: 800 clamp(24px, 3vw, 34px)/1 var(--head); color: #fff; direction: ltr; unicode-bidi: isolate; }
.kpis dd { margin: 8px 0 0; color: rgba(255,255,255,.7); font-size: 14px; }

/* 区块 */
.sec { padding: 88px 0; }
.sec.alt { background: var(--bg2); }
.sec.dark { background: var(--dark); color: #fff; }
.sec-head { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 16px 32px; margin-bottom: 28px; }
.sec-head h2 { margin: 0; }

/* 系列 */
.series { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 28px; }
.ser { position: relative; display: flex; flex-direction: column; padding: 22px; border: 1px solid var(--line); border-radius: var(--r); background: #fff; cursor: pointer; transition: .18s; text-align: start; }
.ser:hover { border-color: var(--g); box-shadow: var(--shadow); transform: translateY(-2px); }
.ser .pic { height: 170px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; background: radial-gradient(circle at 50% 60%, var(--gl), transparent 70%); }
.ser .pic img { max-height: 160px; width: auto; }
.ser b { font: 800 22px/1.1 var(--head); }
.ser .tag { font-size: 13px; color: var(--g2); font-weight: 600; margin: 6px 0 10px; }
.ser p { margin: 0 0 14px; font-size: 14.5px; color: var(--ink2); flex: 1; }
.ser .n { font-size: 13px; font-weight: 600; color: var(--mute); }

/* 筛选 */
.filters { display: flex; flex-wrap: wrap; gap: 10px 18px; }
.fgroup { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.fgroup > span { font-size: 13px; color: var(--mute); margin-inline-end: 4px; }
.chip { height: 34px; padding: 0 14px; border-radius: 999px; border: 1px solid var(--line); background: #fff; cursor: pointer; font-size: 14px; font-weight: 500; }
.chip[aria-pressed="true"] { background: var(--ink); color: #fff; border-color: var(--ink); }

/* 型号卡片 */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.card { display: flex; flex-direction: column; background: #fff; border-radius: var(--r); border: 1px solid var(--line); overflow: hidden; transition: .18s; }
.card:hover { box-shadow: var(--shadow); }
.card .pic { position: relative; height: 210px; display: flex; align-items: center; justify-content: center; background: linear-gradient(180deg, #fff, #f0f4f1); cursor: pointer; }
.card .pic img { max-height: 180px; width: auto; max-width: 80%; object-fit: contain; }
.badges { position: absolute; top: 12px; inset-inline-start: 12px; display: flex; gap: 4px; flex-wrap: wrap; }
.badge { font-size: 11.5px; font-weight: 700; padding: 3px 8px; border-radius: 6px; background: var(--bg2); color: var(--ink2); letter-spacing: .02em; }
.badge.g { background: var(--gl); color: var(--g2); }
.card .body { padding: 16px 18px 18px; display: flex; flex-direction: column; flex: 1; }
.card h3 { margin: 0 0 2px; font-size: 20px; }
.card .sub { font-size: 13px; color: var(--mute); margin-bottom: 12px; }
.facts { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 12px; margin: 0 0 16px; }
.facts div { min-width: 0; }
.facts dt { font-size: 12px; color: var(--mute); }
.facts dd { margin: 0; font-weight: 600; font-size: 15px; direction: ltr; unicode-bidi: isolate; text-align: start; }
.card .acts { display: flex; gap: 8px; margin-top: auto; align-items: center; }
.card .acts .btn { flex: 1; height: 40px; padding: 0 12px; font-size: 14px; }
.cmp-chk { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--ink2); cursor: pointer; white-space: nowrap; }
.cmp-chk input { accent-color: var(--g); width: 16px; height: 16px; }
.empty { text-align: center; color: var(--mute); padding: 40px 0; }

/* 选型 */
.sel { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.fld { display: flex; flex-direction: column; gap: 6px; margin-bottom: 18px; }
.fld > span { font-size: 14px; font-weight: 600; color: var(--ink2); }
.fld input, .fld select, .fld textarea { width: 100%; border: 1px solid #cfd8d3; border-radius: 10px; padding: 11px 14px; background: #fff; outline: none; transition: border-color .15s; }
.fld input:focus, .fld select:focus, .fld textarea:focus { border-color: var(--g); box-shadow: 0 0 0 3px rgba(18,161,80,.15); }
.range { display: flex; align-items: center; gap: 16px; }
.range input { flex: 1; accent-color: var(--g); padding: 0; border: 0; box-shadow: none !important; }
.range output { font: 800 26px/1 var(--head); min-width: 96px; text-align: end; direction: ltr; }
.hint { font-size: 14px; color: var(--mute); }
.sel-r { background: var(--bg2); border-radius: 18px; padding: 28px; }
.rec { display: flex; gap: 18px; align-items: center; background: #fff; border-radius: 12px; padding: 14px; margin-bottom: 10px; border: 1px solid var(--line); cursor: pointer; transition: .15s; }
.rec:hover { border-color: var(--g); }
.rec img { width: 64px; height: 80px; object-fit: contain; }
.rec b { font: 700 17px/1.2 var(--head); display: block; }
.rec span { font-size: 14px; color: var(--ink2); direction: ltr; unicode-bidi: isolate; }
.rec.best { border-color: var(--g); box-shadow: 0 0 0 3px rgba(18,161,80,.12); }
.rec .tagb { margin-inline-start: auto; font-size: 12px; font-weight: 700; color: var(--g2); background: var(--gl); padding: 4px 8px; border-radius: 6px; white-space: nowrap; }

/* 技术 */
.flow { margin: 28px 0 40px; background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.08); border-radius: 18px; padding: 16px; }
.flow svg { width: 100%; height: auto; display: block; }
.tech { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: rgba(255,255,255,.1); border-radius: 16px; overflow: hidden; }
.tech > div { background: var(--dark); padding: 26px 22px; }
.tech svg { width: 30px; height: 30px; stroke: #5fd394; fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 14px; }
.tech h3 { font-size: 17px; margin-bottom: 6px; }
.tech p { margin: 0; color: rgba(255,255,255,.66); font-size: 14.5px; }

/* 防护等级 */
.ips { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 24px; }
.ip { border: 1px solid var(--line); border-radius: var(--r); padding: 24px; }
.ip b { font: 800 30px/1 var(--head); color: var(--g2); }
.ip p { margin: 10px 0 0; color: var(--ink2); }

/* 应用 */
.apps { position: relative; color: #fff; background: linear-gradient(rgba(8,20,14,.78), rgba(8,20,14,.86)), url("img/bg-house3.webp") center/cover; }
.scenes { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; margin-top: 28px; }
.scene { text-align: center; padding: 24px 8px; border-radius: var(--r); background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12); }
.scene svg { width: 44px; height: 44px; stroke: #5fd394; fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.scene span { display: block; margin-top: 10px; font-weight: 600; }

/* 联系 */
.contact { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: start; }
.direct { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 10px; }
.direct a, .direct li > span { display: flex; align-items: center; gap: 12px; padding: 12px 16px; border-radius: 12px; background: #fff; border: 1px solid var(--line); font-weight: 600; }
.direct a:hover { border-color: var(--g); }
.direct small { color: var(--mute); font-weight: 500; min-width: 72px; }
.form { background: #fff; border-radius: 18px; padding: 28px; border: 1px solid var(--line); }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 14px; }
.hp { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; border: 0; opacity: 0; overflow: hidden; clip-path: inset(50%); pointer-events: none; }
.form-msg { margin: 12px 0 0; font-weight: 600; min-height: 1.6em; }
.form-msg.ok { color: var(--g2); }
.form-msg.err { color: #c0392b; }

/* 页脚 */
.foot { background: var(--dark); color: rgba(255,255,255,.6); padding: 36px 0; font-size: 14px; }
.foot-in { display: flex; flex-wrap: wrap; gap: 12px 32px; align-items: center; justify-content: space-between; }
.foot .logo { color: #fff; }
.foot p { margin: 0; }
.foot .note { flex: 1; min-width: 240px; }

/* 对比条 */
.cmp-bar { position: fixed; z-index: 40; left: 50%; bottom: 16px; transform: translateX(-50%); display: flex; align-items: center; gap: 12px; padding: 10px 10px 10px 20px; background: var(--ink); color: #fff; border-radius: 999px; box-shadow: 0 10px 30px rgba(0,0,0,.25); max-width: calc(100% - 32px); }
.cmp-bar[hidden] { display: none; }
#cmp-names { font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }

/* 弹窗 */
.modal { width: min(980px, 100% - 24px); max-height: calc(100vh - 32px); border: 0; border-radius: 18px; padding: 0; box-shadow: 0 30px 80px rgba(0,0,0,.35); color: var(--ink); }
.modal::backdrop { background: rgba(8,20,14,.6); backdrop-filter: blur(3px); }
.x { position: sticky; top: 10px; float: inline-end; margin: 10px 10px -50px 0; width: 40px; height: 40px; border-radius: 50%; border: 0; background: var(--bg2); font-size: 24px; line-height: 1; cursor: pointer; z-index: 2; }
.m-head { display: grid; grid-template-columns: 240px 1fr; gap: 28px; padding: 32px; background: linear-gradient(180deg, #f6f9f7, #fff); }
.m-head .pic { display: flex; align-items: center; justify-content: center; background: radial-gradient(circle, var(--gl), transparent 70%); border-radius: 14px; min-height: 240px; }
.m-head .pic img { max-height: 280px; width: auto; }
.m-head h2 { margin-bottom: 4px; }
.m-head .sub { color: var(--mute); margin-bottom: 14px; }
.m-head ul { margin: 0 0 18px; padding-inline-start: 18px; columns: 2; column-gap: 28px; font-size: 14.5px; color: var(--ink2); }
.m-head li { break-inside: avoid; margin-bottom: 5px; }
.m-head li::marker { color: var(--g); }
.m-acts { display: flex; flex-wrap: wrap; gap: 8px; }
.m-specs { padding: 8px 32px 32px; }
.spec { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.spec th, .spec td { text-align: start; padding: 9px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.spec td { direction: ltr; unicode-bidi: plaintext; }
.spec th { font-weight: 500; color: var(--ink2); width: 42%; }
.spec tr.grp th { font: 700 13px/1 var(--font); text-transform: uppercase; letter-spacing: .06em; color: var(--g2); padding-top: 22px; border-bottom: 2px solid var(--g); }
.spec .na { color: var(--mute); }
.cmp-wrap { padding: 32px; overflow-x: auto; }
.cmp-wrap .spec { min-width: 640px; table-layout: fixed; }
.cmp-wrap .spec th { width: auto; }
.cmp-wrap .spec thead th:first-child { width: 26%; }
.cmp-wrap .spec thead th { vertical-align: bottom; text-align: center; color: var(--ink); font: 700 15px/1.2 var(--head); }
.cmp-wrap .spec thead img { height: 90px; width: auto; margin: 0 auto 8px; }
.cmp-wrap .spec td { text-align: center; }
.cmp-wrap .spec td.diff { background: #fbfdf3; }
.sheets { margin-top: 10px; font-size: 14px; color: var(--mute); }
.sheets a { color: var(--g2); font-weight: 600; margin-inline-end: 14px; text-decoration: underline; text-underline-offset: 3px; }

/* 智能 BMS */
.eyebrow { margin: 0 0 8px; font-size: 14px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--g2); }
.bms h3 { font-size: 18px; margin: 26px 0 12px; }
.bms-top { display: grid; grid-template-columns: 1.15fr .85fr; gap: 36px; align-items: start; margin-top: 32px; }
.bms-vis { position: relative; aspect-ratio: 4 / 3; border-radius: 20px; background: radial-gradient(ellipse 70% 60% at 50% 55%, #ffffff, #e6efe9 75%); border: 1px solid var(--line); overflow: hidden; }
.bms-vis img { position: absolute; height: auto; filter: drop-shadow(0 14px 18px rgba(13,26,20,.22)); }
.bv-main { inset-inline-start: 4%; top: 5%; width: 52%; }
.bv-pow { inset-inline-end: 4%; bottom: 9%; width: 56%; }
.bv-pow.wide { inset-inline-end: 6%; width: 88%; bottom: 8%; }
.bv-lcd { inset-inline-end: 4%; top: 6%; width: 36%; }
.bv-tag { position: absolute; inset-inline-start: 14px; bottom: 12px; font-size: 13px; font-weight: 700; color: var(--ink2); background: rgba(255,255,255,.85); padding: 4px 10px; border-radius: 999px; border: 1px solid var(--line); direction: ltr; unicode-bidi: isolate; }
.bms-cfg .fgroup { margin-bottom: 14px; }
.bms-cfg .fgroup > span { display: block; width: 100%; font-weight: 600; color: var(--ink2); font-size: 14px; margin-bottom: 4px; }
.bms-cfg .fgroup > div { display: flex; flex-wrap: wrap; gap: 6px; }
.bms-kpi { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 20px 0 0; }
.bms-kpi div { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 14px; }
.bms-kpi dt { font: 800 19px/1.15 var(--head); color: var(--g2); direction: ltr; unicode-bidi: isolate; }
.bms-kpi dd { margin: 6px 0 0; font-size: 12.5px; color: var(--mute); }
.bms-kit { list-style: none; margin: 0 0 22px; padding: 0; }
.bms-kit li { position: relative; padding: 5px 0; padding-inline-start: 26px; font-size: 15px; color: var(--ink2); }
.bms-kit li::before { content: ""; position: absolute; inset-inline-start: 2px; top: 10px; width: 12px; height: 7px; border: solid var(--g); border-width: 0 0 2.5px 2.5px; transform: rotate(-45deg); }
.bms-feats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 40px; }
.bf { background: #fff; border: 1px solid var(--line); border-radius: var(--r); padding: 22px; }
.bf svg { width: 40px; height: 40px; fill: none; stroke: var(--g); stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.bf b { display: block; font: 700 17px/1.25 var(--head); margin: 12px 0 8px; }
.bf p { margin: 0; font-size: 14px; color: var(--ink2); }
.bms-2 { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; margin-top: 16px; }
.bms-spec { width: 100%; border-collapse: collapse; background: #fff; border-radius: 12px; overflow: hidden; border: 1px solid var(--line); }
.bms-spec th, .bms-spec td { text-align: start; padding: 10px 14px; border-bottom: 1px solid var(--line); font-size: 14.5px; vertical-align: top; }
.bms-spec th { width: 42%; font-weight: 600; color: var(--ink2); background: var(--bg2); }
.bms-spec tr:last-child th, .bms-spec tr:last-child td { border-bottom: 0; }
.bms-prot, .bms-brands { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.bms-prot li { font-size: 14px; padding: 6px 12px; border-radius: 999px; background: var(--gl); color: var(--g2); font-weight: 600; }
.bms-brands li { font-size: 14px; padding: 6px 14px; border-radius: 8px; background: #fff; border: 1px solid var(--line); font-weight: 700; color: var(--ink); }
.bms .hint { margin-top: 12px; }

/* 逆变器 + BMS 系统 */
.sys { display: grid; grid-template-columns: 1fr 1.1fr 1fr; align-items: center; gap: 12px; margin-top: 32px; padding: 28px 24px; border-radius: 20px; background: linear-gradient(135deg, #0d1a14, #12301f); color: #fff; }
.sys figure { margin: 0; text-align: center; }
.sys figcaption { margin-top: 12px; font-weight: 700; font-size: 16px; }
.sys-inv img { height: 220px; width: auto; filter: drop-shadow(0 16px 20px rgba(0,0,0,.5)); }
.sys-pack { position: relative; display: inline-block; width: 230px; max-width: 100%; aspect-ratio: 1.3; border-radius: 16px; background: linear-gradient(180deg, #e9efeb, #c9d4cd); box-shadow: 0 16px 30px rgba(0,0,0,.45); overflow: hidden; }
.sys-pack img { position: absolute; left: 9%; top: 12%; width: 82%; height: auto; border-radius: 4px; box-shadow: 0 4px 10px rgba(0,0,0,.25); }
.sys-pack i { position: absolute; bottom: 10px; width: 14%; height: 6px; border-radius: 3px; background: #2fbf6b; }
.sys-pack i:nth-of-type(1) { left: 12%; } .sys-pack i:nth-of-type(2) { left: 32%; } .sys-pack i:nth-of-type(3) { left: 52%; } .sys-pack i:nth-of-type(4) { left: 72%; background: #8a958f; }
.sys-link { position: relative; text-align: center; }
.sys-link svg { width: 100%; height: 60px; display: block; }
.sys-link path { stroke: #5fd394; stroke-width: 3; fill: none; stroke-dasharray: 8 8; animation: fl 1s linear infinite; }
.sys-link path + path { stroke: #8fb3ff; animation-direction: reverse; }
.sys-link span { display: inline-block; margin-top: 6px; font: 800 20px/1 var(--head); direction: ltr; }
.sys-link small { display: block; margin-top: 6px; font-size: 13px; color: rgba(255,255,255,.7); }
@keyframes fl { to { stroke-dashoffset: -16; } }
@media (prefers-reduced-motion: reduce) { .sys-link path { animation: none; } }
.sys-pts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 16px; }
.sys-pts div { background: #fff; border: 1px solid var(--line); border-radius: var(--r); padding: 18px 20px; }
.sys-pts b { display: flex; align-items: center; gap: 10px; font: 700 17px/1.25 var(--head); }
.sys-pts em { flex: none; display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: var(--g); color: #fff; font-style: normal; font-size: 14px; }
.sys-pts p { margin: 8px 0 0; font-size: 14px; color: var(--ink2); }
.pair-h { margin-top: 36px !important; }
.pair { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.pg { display: flex; flex-direction: column; align-items: flex-start; text-align: start; gap: 6px; padding: 16px; border-radius: 14px; border: 1px solid var(--line); background: #fff; cursor: pointer; font: inherit; color: inherit; transition: .15s; }
.pg:hover { border-color: var(--g); box-shadow: var(--shadow); }
.pg b { font: 800 18px/1.2 var(--head); color: var(--g2); direction: ltr; unicode-bidi: isolate; }
.pg small { font-size: 12.5px; color: var(--mute); }
.pg span { display: flex; flex-wrap: wrap; gap: 4px; }
.pg span i { font-style: normal; font-size: 12.5px; font-weight: 600; padding: 2px 7px; border-radius: 6px; background: var(--bg2); color: var(--ink2); }
.pg em { margin-top: auto; font-style: normal; font-size: 13px; font-weight: 700; color: var(--g2); }
.bms-tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin: 44px 0 0; padding: 6px; border-radius: 18px; background: #e3ebe6; }
.bms-tabs button { display: flex; flex-direction: column; gap: 2px; align-items: center; padding: 14px 10px; border: 0; border-radius: 13px; background: none; cursor: pointer; font: inherit; color: var(--ink2); }
.bms-tabs b { font: 800 18px/1.2 var(--head); }
.bms-tabs small { font-size: 13px; color: var(--mute); }
.bms-tabs [aria-selected="true"] { background: #fff; color: var(--ink); box-shadow: var(--shadow); }
.bms-tabs [aria-selected="true"] small { color: var(--g2); }
.panel-h { font-size: clamp(22px, 2.6vw, 30px) !important; margin: 32px 0 8px !important; }
.hv-diag { margin-top: 24px; background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 16px; }
.hv-diag svg { width: 100%; height: auto; display: block; font-family: var(--font); }
.hv-diag rect { fill: #f3f6f4; stroke: #c9d6ce; stroke-width: 1.5; }
.hv-diag text { font-size: 14px; font-weight: 700; fill: var(--ink); }
.hv-diag .bcu rect { fill: #0d1a14; stroke: #0d1a14; }
.hv-diag .bcu text { fill: #fff; font-size: 16px; }
.hv-diag .sm2 { fill: #7ee2a8; font-size: 12px; font-weight: 600; }
.hv-diag .ext rect { fill: #fff; stroke: var(--g); stroke-dasharray: 5 4; }
.hv-diag .ext text { font-size: 13px; }
.hv-diag .hv-pack > rect:first-child { fill: #eef3f0; }
.hv-diag .bmu { fill: #12a150 !important; stroke: none !important; }
.hv-diag .bmu-t { fill: #fff; font-size: 13px; }
.hv-diag .sm { font-size: 12.5px; font-weight: 600; fill: var(--mute); }
.hv-diag .lbl { font-size: 12.5px; fill: var(--g2); }
.hv-diag .chain { stroke: var(--g); stroke-width: 3; fill: none; }
.hv-diag .chain.dots { stroke-dasharray: 3 6; }
.hv-diag .link { stroke: #8fb3ff; stroke-width: 2.5; fill: none; stroke-dasharray: 6 5; }
.bms-spec tr.grp th { background: var(--ink); color: #fff; font-weight: 700; }
.hv-grade { margin: 0 0 8px; padding: 0; list-style: none; }
.hv-grade li { padding: 4px 0 4px 12px; font-size: 14.5px; color: var(--ink2); border-inline-start: 3px solid var(--g2); margin-bottom: 6px; }
@media (max-width: 700px) {
  .hv-diag { overflow-x: auto; padding: 10px; }
  .hv-diag svg { min-width: 620px; }
}
#hv-quote { margin-top: 24px; }
.m-bms { display: flex; align-items: center; gap: 14px; margin: 18px 0 4px; padding: 12px 14px; border-radius: 12px; background: var(--gl); }
.m-bms img { width: 64px; height: auto; flex: none; }
.m-bms div { display: flex; flex-direction: column; }
.m-bms small { font-size: 12px; color: var(--g2); font-weight: 600; }
.m-bms b { font: 800 16px/1.25 var(--head); direction: ltr; unicode-bidi: isolate; }
.m-bms span { font-size: 12.5px; color: var(--ink2); }
.m-bms a { margin-inline-start: auto; font-weight: 700; font-size: 14px; color: var(--g2); white-space: nowrap; }
.rec .rec-bms { display: block; margin-top: 2px; color: var(--g2); font-weight: 600; font-size: 13px; }

/* RTL */
[dir="rtl"] .hero-bg { transform: scaleX(-1); }

/* 响应式 */
@media (max-width: 1080px) {
  .series { grid-template-columns: repeat(2, 1fr); }
  .tech { grid-template-columns: repeat(2, 1fr); }
  .scenes { grid-template-columns: repeat(3, 1fr); }
  .bms-feats { grid-template-columns: repeat(2, 1fr); }
  .pair { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .nav { position: fixed; top: 64px; left: 0; right: 0; flex-direction: column; gap: 0; background: #fff; border-bottom: 1px solid var(--line); padding: 8px 16px 16px; transform: translateY(-120%); transition: transform .25s; z-index: -1; box-shadow: var(--shadow); }
  .nav.open { transform: none; }
  .nav a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .top-r { margin-inline-start: auto; }
  .burger { display: flex; }
  .hide-m { display: none; }
  .hero-in { grid-template-columns: 1fr; min-height: 0; }
  .hero-img { order: -1; }
  .hero-img img { max-height: 260px; }
  .kpis { grid-template-columns: repeat(2, 1fr); }
  .kpis div:nth-child(3) { border-inline-start: 0; padding-inline-start: 0; }
  .kpis div:nth-child(n+3) { border-top: 1px solid rgba(255,255,255,.16); }
  .sel, .contact { grid-template-columns: 1fr; gap: 28px; }
  .ips { grid-template-columns: 1fr; }
  .bms-top, .bms-2 { grid-template-columns: 1fr; gap: 24px; }
  .sys { grid-template-columns: 1fr; padding: 24px 16px; }
  .sys-inv img { height: 170px; }
  .sys-link svg { width: 60px; height: 60px; margin: 0 auto; transform: rotate(90deg); }
  .sys-pts { grid-template-columns: 1fr; }
  .m-head { grid-template-columns: 1fr; padding: 24px 20px; }
  .m-head .pic { min-height: 200px; }
  .m-head .pic img { max-height: 200px; }
  .m-head ul { columns: 1; }
  .m-specs { padding: 0 12px 24px; }
  .cmp-wrap { padding: 20px 12px; }
}
@media (max-width: 560px) {
  .sec { padding: 60px 0; }
  .series { grid-template-columns: 1fr; }
  .tech { grid-template-columns: 1fr; }
  .scenes { grid-template-columns: repeat(2, 1fr); }
  .row2 { grid-template-columns: 1fr; }
  .form, .sel-r { padding: 20px; }
  .lead { font-size: 16px; }
  .spec th { width: 46%; }
  .spec th, .spec td { padding: 8px 6px; font-size: 13.5px; }
  .logo span { font-size: 16px; }
  .bms-feats { grid-template-columns: 1fr; }
  .pair { grid-template-columns: 1fr; }
  .bms-tabs b { font-size: 15px; }
  .bms-tabs small { font-size: 11.5px; }
  .hv-diag { padding: 8px; overflow-x: auto; }
  .hv-diag svg { min-width: 560px; }
  .bms-kpi { gap: 6px; }
  .bms-kpi div { padding: 10px; }
  .bms-kpi dt { font-size: 16px; }
  .bms-spec th, .bms-spec td { padding: 8px 10px; font-size: 13.5px; }
}