:root {
  color-scheme: dark;
  --ink: #f5f8ff;
  --sub: #c4cee0;
  --muted: #8f9eb4;
  --line: rgba(255, 255, 255, 0.12);
  --cyan: #16d7d2;
  --blue: #2878ff;
  --gold: #f3c969;
  --glow-rgb: 84, 215, 255;
  --warm-rgb: 243, 201, 105;
  --surface-rgb: 255, 255, 255;
}

* { box-sizing: border-box; }
body { margin: 0; font-family: "Microsoft YaHei", Arial, sans-serif; color: var(--ink); background: #050a13; letter-spacing: 0; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.wrap { width: min(1240px, calc(100% - 40px)); margin: 0 auto; }
.topbar { position: sticky; top: 0; z-index: 20; background: rgba(5, 10, 19, .9); border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); }
.topbar .wrap { height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 700; }
.brand-mark { width: 36px; height: 36px; display: block; flex: 0 0 auto; object-fit: contain; border-radius: 8px; background: transparent; }
.nav { display: flex; align-items: center; gap: 22px; color: var(--sub); font-size: 14px; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 0 18px; border-radius: 6px; cursor: pointer; font-weight: 700; border: 1px solid rgba(22, 215, 210, .45); background: linear-gradient(135deg, rgba(40, 120, 255, .95), rgba(22, 215, 210, .82)); user-select: none; transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease, filter .22s ease, background .22s ease; }
.btn:hover { transform: translateY(-2px); filter: brightness(1.1); box-shadow: 0 12px 30px rgba(var(--glow-rgb), .28), 0 0 0 1px rgba(var(--glow-rgb), .22) inset; }
.btn.secondary { background: rgba(255, 255, 255, .06); border-color: rgba(255, 255, 255, .18); }
.eyebrow { color: var(--cyan); font-size: 14px; font-weight: 800; margin-bottom: 14px; }
.muted { color: var(--sub); }
.modal-toggle { position: fixed; opacity: 0; pointer-events: none; }
.contact-modal { position: fixed; inset: 0; z-index: 50; display: none; align-items: center; justify-content: center; padding: 24px; background: rgba(0, 0, 0, .68); }
.modal-toggle:checked + .contact-modal { display: flex; }
.modal-mask { position: absolute; inset: 0; }
.contact-box { position: relative; width: min(940px, 100%); display: grid; grid-template-columns: 1fr 270px; gap: 28px; padding: 38px; border-radius: 10px; background: linear-gradient(135deg, rgba(8, 18, 34, .98), rgba(9, 32, 46, .98)); border: 1px solid rgba(22, 215, 210, .38); }
.modal-close { position: absolute; right: 16px; top: 14px; width: 38px; height: 38px; display: grid; place-items: center; cursor: pointer; font-size: 24px; border-radius: 6px; background: rgba(255, 255, 255, .08); }
.modal-title { margin: 22px 0 14px; font-size: 34px; line-height: 1.25; }
.qr-panel { display: grid; justify-items: center; gap: 14px; padding: 22px; border-radius: 8px; background: rgba(255, 255, 255, .06); }
.qr-panel img { width: 176px; border-radius: 6px; background: #fff; }
.qr-panel strong { font-size: 24px; }
.modal-copy, .hz-card p, .sz-card p, .bj-card p, .bj-step p, .flow-row { margin: 0; color: var(--sub); line-height: 1.75; }

.hz { --cyan: #20d6bd; --blue: #3976ff; --gold: #ffb84a; --glow-rgb: 32, 214, 189; --warm-rgb: 255, 184, 74; background: linear-gradient(180deg, #06151a, #07121d 44%, #08131a); }
.hz-hero { position: relative; overflow: hidden; padding: 76px 0 64px; background: linear-gradient(90deg, rgba(7,17,29,.96), rgba(7,17,29,.74)), url("/theme/images/xcx/pc/head-bg.png") center / cover; }
.hz-hero::before { content: none; }
.hz-hero .wrap::before { content: "HANGZHOU"; position: absolute; right: 0; top: -12px; z-index: 0; color: rgba(255,255,255,.055); font-size: 108px; font-weight: 900; letter-spacing: 0; pointer-events: none; }
.hz-hero-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(520px, 1.1fr); gap: 38px; align-items: center; }
.hz-hero .wrap { position: relative; z-index: 1; }
.hz-hero-grid { position: relative; z-index: 1; }
.hz h1 { margin: 0; max-width: 760px; font-size: 48px; line-height: 1.16; }
.hz .lead { margin: 22px 0 0; max-width: 720px; color: #d1dcec; font-size: 18px; line-height: 1.85; }
.commerce-board { padding: 18px; border-radius: 10px; background: radial-gradient(circle at 22% 0, rgba(32,214,189,.18), transparent 34%), rgba(3,12,24,.78); border: 1px solid rgba(32,214,189,.3); box-shadow: 0 26px 90px rgba(0,0,0,.38), inset 0 1px 0 rgba(255,255,255,.08); transition: transform .24s ease, border-color .24s ease, box-shadow .24s ease, background .24s ease; }
.commerce-board > img { width: 100%; height: 260px; object-fit: cover; object-position: top center; border: 1px solid rgba(255,255,255,.1); }
.board-top { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.kpi { padding: 16px; border-radius: 8px; background: radial-gradient(circle at 50% 0, rgba(32,214,189,.24), transparent 56%), linear-gradient(135deg, rgba(32,214,189,.2), rgba(57,118,255,.1)); border: 1px solid rgba(32,214,189,.22); box-shadow: inset 0 1px 0 rgba(255,255,255,.08); transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease, background .22s ease; }
.kpi strong { display: block; font-size: 26px; margin-bottom: 6px; }
.order-flow { margin-top: 14px; padding: 14px 18px; border-radius: 8px; background: rgba(255,255,255,.06); }
.flow-row { display: grid; grid-template-columns: 88px 1fr 74px; gap: 14px; align-items: center; padding: 8px 0; border-bottom: 1px solid rgba(255,255,255,.1); }
.flow-row:last-child { border-bottom: 0; }
.flow-bar { height: 9px; border-radius: 9px; background: linear-gradient(90deg, var(--cyan), var(--blue)); }
.hz-section { padding: 64px 0; }
.hz-split { display: grid; grid-template-columns: 360px 1fr; gap: 28px; }
.sticky-note { padding: 28px; border-left: 4px solid var(--cyan); background: rgba(255,255,255,.055); }
.sticky-note h2, .sz-section h2, .bj-section h2 { margin: 0 0 14px; font-size: 34px; line-height: 1.25; }
.hz-card-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.hz-card, .sz-card, .bj-card { padding: 22px; border-radius: 8px; background: radial-gradient(circle at 50% 0, rgba(var(--glow-rgb), .13), transparent 58%), rgba(255,255,255,.06); border: 1px solid rgba(var(--glow-rgb), .18); box-shadow: inset 0 1px 0 rgba(255,255,255,.08), 0 18px 54px rgba(0,0,0,.18); transition: transform .24s ease, border-color .24s ease, box-shadow .24s ease, background .24s ease; }
.hz-card h3, .sz-card h3, .bj-card h3 { margin: 0 0 10px; }
.hz .btn { border-color: rgba(32,214,189,.46); background: linear-gradient(135deg, #25d2b8, #3d7cff); }
.hz .btn.secondary { background: rgba(255,184,74,.08); border-color: rgba(255,184,74,.22); }
.commerce-strip { padding: 54px 0; background: linear-gradient(90deg, rgba(255,184,74,.07), rgba(13,27,40,1) 28%, rgba(32,214,189,.08)); }
.strip-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: rgba(255,255,255,.12); }
.strip-list div { min-height: 190px; padding: 24px; background: radial-gradient(circle at 50% 0, rgba(255,184,74,.12), transparent 52%), #08131f; transition: background .22s ease, box-shadow .22s ease; }

.sz { --cyan: #31d9ff; --blue: #3762ff; --gold: #89ffcd; --glow-rgb: 49, 217, 255; --warm-rgb: 137, 255, 205; background: #040914; }
.sz-hero { position: relative; overflow: hidden; min-height: 690px; padding: 88px 0 54px; background: linear-gradient(100deg, rgba(4,9,20,.98), rgba(4,9,20,.74) 46%, rgba(4,9,20,.46)), url("/theme/images/wlwbanner.jpg") center / cover; }
.sz-hero::before { content: none; }
.sz-hero .wrap { position: relative; z-index: 1; }
.sz-hero .wrap::before { content: "SHENZHEN"; position: absolute; right: 0; top: 44px; z-index: 0; color: rgba(255,255,255,.06); font-size: 112px; font-weight: 900; letter-spacing: 0; pointer-events: none; }
.sz-hero .eyebrow, .sz-hero h1, .sz-hero .lead, .sz-hero .tag-list, .sz-hero .device-map { position: relative; z-index: 1; }
.sz h1 { width: min(760px, 100%); margin: 0; font-size: 54px; line-height: 1.14; }
.sz .lead { width: min(700px, 100%); margin: 24px 0 0; color: #d0d9e8; font-size: 18px; line-height: 1.9; }
.device-map { margin-top: 42px; display: grid; grid-template-columns: 1fr 90px 1fr 90px 1fr; gap: 10px; align-items: center; }
.device-node { min-height: 180px; padding: 24px; border-radius: 999px; display: grid; place-items: center; text-align: center; background: radial-gradient(circle at 50% 0, rgba(49,217,255,.24), rgba(49,217,255,.08) 45%, rgba(255,255,255,.045) 72%); border: 1px solid rgba(49,217,255,.38); box-shadow: 0 0 34px rgba(49,217,255,.08), inset 0 1px 0 rgba(255,255,255,.1); transition: transform .24s ease, border-color .24s ease, box-shadow .24s ease, background .24s ease; }
.device-node strong { display: block; font-size: 22px; margin-bottom: 10px; }
.connector { height: 2px; background: linear-gradient(90deg, transparent, var(--cyan), transparent); box-shadow: 0 0 16px rgba(49,217,255,.55); }
.sz-section { padding: 66px 0; }
.sz-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 18px; }
.sz-card { min-height: 260px; display: flex; flex-direction: column; justify-content: space-between; }
.sz-card img { width: 86px; height: 86px; object-fit: contain; margin-bottom: 18px; }
.protocol-panel { display: grid; grid-template-columns: 1.1fr .9fr; gap: 26px; align-items: center; padding: 34px; border-radius: 8px; background: radial-gradient(circle at 18% 0, rgba(49,217,255,.2), transparent 42%), linear-gradient(135deg, rgba(49,217,255,.12), rgba(55,98,255,.06)); border: 1px solid rgba(49,217,255,.26); box-shadow: inset 0 1px 0 rgba(255,255,255,.08), 0 22px 70px rgba(0,0,0,.24); }
.protocol-panel img { width: 100%; height: 320px; object-fit: cover; object-position: top center; border: 1px solid rgba(255,255,255,.1); }
.protocol-list { display: grid; gap: 12px; }
.protocol-list div { padding: 16px 18px; border-radius: 6px; background: linear-gradient(90deg, rgba(49,217,255,.12), rgba(255,255,255,.055)); color: var(--sub); border: 1px solid rgba(49,217,255,.12); box-shadow: inset 0 1px 0 rgba(255,255,255,.06); transition: transform .2s ease, border-color .2s ease, background .2s ease; }

.sz .btn { border-color: rgba(49,217,255,.5); background: linear-gradient(135deg, #3762ff, #31d9ff); }
.sz .btn.secondary { background: rgba(49,217,255,.07); border-color: rgba(49,217,255,.25); }

.bj { --cyan: #54d7ff; --blue: #5f6fff; --gold: #f3c969; --glow-rgb: 84, 215, 255; --warm-rgb: 243, 201, 105; background: #070b14; }
.bj .btn { border-color: rgba(243,201,105,.36); background: linear-gradient(135deg, #2d7bff, #1ccbd4); }
.bj .btn.secondary { background: rgba(243,201,105,.07); border-color: rgba(243,201,105,.24); }
.bj-hero { position: relative; overflow: hidden; padding: 46px 0 0; background: linear-gradient(180deg, rgba(7,11,20,.9), rgba(7,11,20,.98)), url("/theme/images/uc8-backimg2.png") center / cover; }
.bj-hero::before { content: none; }
.bj-hero .wrap { display: grid; grid-template-columns: 1fr 420px; gap: 42px; align-items: start; }
.bj-hero .wrap::before { content: "BEIJING"; position: absolute; right: 0; top: -6px; z-index: 0; color: rgba(255,255,255,.055); font-size: 122px; font-weight: 900; letter-spacing: 0; pointer-events: none; }
.bj h1 { margin: 0; font-size: 50px; line-height: 1.16; }
.bj .lead { margin: 22px 0 28px; color: #d5ddea; font-size: 18px; line-height: 1.9; }
.bj-hero .wrap { position: relative; z-index: 1; }
.bj-hero .wrap > * { position: relative; z-index: 1; }
.bj-hero-visual { min-height: 430px; align-self: end; padding: 22px; border-radius: 10px 10px 0 0; border: 1px solid rgba(84,215,255,.28); border-bottom: 0; background: radial-gradient(circle at 50% 0, rgba(84,215,255,.18), transparent 48%), linear-gradient(180deg, rgba(10,27,45,.92), rgba(11,16,28,.94)); box-shadow: 0 28px 90px rgba(0,0,0,.38), 0 0 38px rgba(84,215,255,.08), inset 0 1px 0 rgba(255,255,255,.08); transition: transform .24s ease, border-color .24s ease, box-shadow .24s ease; }
.visual-top { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-bottom: 16px; border-bottom: 1px solid rgba(255,255,255,.12); }
.visual-top span { color: var(--cyan); font-size: 13px; font-weight: 800; }
.visual-top strong { color: #fff; font-size: 18px; }
.visual-search { margin: 18px 0; padding: 13px 15px; border-radius: 8px; color: #d9e8ff; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.12); }
.visual-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.visual-grid div { padding: 15px; border-radius: 8px; background: radial-gradient(circle at 50% 0, rgba(var(--glow-rgb), .12), transparent 64%), rgba(255,255,255,.06); border: 1px solid rgba(var(--glow-rgb), .14); box-shadow: inset 0 1px 0 rgba(255,255,255,.07); transition: background .22s ease, border-color .22s ease, transform .22s ease; }
.visual-grid strong { display: block; margin-bottom: 8px; color: var(--gold); }
.visual-grid span, .visual-chat span { color: var(--sub); font-size: 14px; line-height: 1.6; }
.visual-chat { margin-top: 12px; padding: 16px; border-radius: 8px; background: rgba(84,215,255,.08); border: 1px solid rgba(84,215,255,.18); }
.visual-chat p { margin: 0 0 8px; font-weight: 800; }
.visual-bars { height: 92px; margin-top: 18px; display: flex; align-items: end; gap: 12px; padding: 16px 18px 0; border-top: 1px solid rgba(255,255,255,.1); }
.visual-bars i { flex: 1; border-radius: 8px 8px 0 0; background: linear-gradient(180deg, var(--cyan), rgba(120,103,255,.28)); box-shadow: 0 0 18px rgba(84,215,255,.18); }
.bj-section { padding: 66px 0; }
.bj-layout { display: grid; grid-template-columns: .88fr 1.12fr; gap: 34px; align-items: start; }
.bj-layout aside { padding: 26px; border-radius: 8px; background: radial-gradient(circle at 0 0, rgba(var(--glow-rgb), .16), transparent 42%), linear-gradient(180deg, rgba(var(--glow-rgb), .08), rgba(255,255,255,.035)); border: 1px solid rgba(var(--glow-rgb), .16); box-shadow: inset 0 1px 0 rgba(255,255,255,.08); }
.bj-timeline { display: grid; gap: 0; border-top: 1px solid rgba(255,255,255,.14); }
.bj-step { display: grid; grid-template-columns: 140px 1fr; gap: 20px; padding: 24px 0; border-bottom: 1px solid rgba(255,255,255,.14); }
.bj-step strong { color: var(--gold); }
.bj-aside-points { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-top: 22px; }
.bj-aside-points div { min-height: 118px; padding: 16px; border-radius: 8px; background: radial-gradient(circle at 50% 0, rgba(var(--warm-rgb), .14), transparent 58%), rgba(255,255,255,.055); border: 1px solid rgba(var(--warm-rgb), .16); transition: transform .22s ease, border-color .22s ease, background .22s ease; }
.bj-aside-points strong { display: block; margin-bottom: 8px; color: var(--gold); }
.bj-aside-points span { display: block; color: var(--sub); font-size: 14px; line-height: 1.65; }
.bj-knowledge { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.bj-card { background: radial-gradient(circle at 50% 0, rgba(var(--glow-rgb), .18), transparent 54%), linear-gradient(180deg, rgba(var(--glow-rgb), .08), rgba(255,255,255,.045)); }
.bj-cta, .hz-cta, .sz-cta, .sh-cta, .gz-cta { padding: 58px 0; background: radial-gradient(circle at 50% 0, rgba(var(--glow-rgb), .12), transparent 54%), rgba(255,255,255,.045); border-top: 1px solid rgba(var(--glow-rgb), .14); }
.cta-box { display: flex; align-items: center; justify-content: space-between; gap: 26px; }
.cta-box h2 { margin: 0 0 10px; font-size: 30px; }
.cta-box p { margin: 0; color: var(--sub); }
.section-title { max-width: 900px; margin-bottom: 26px; }
.section-title h2 { margin: 0 0 10px; font-size: 34px; line-height: 1.25; }
.section-title p { margin: 0; color: var(--sub); line-height: 1.8; }
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.tag-list span { padding: 6px 10px; border-radius: 4px; color: #dffcff; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14); font-size: 13px; }
.matrix-table { width: 100%; border-collapse: collapse; overflow: hidden; border-radius: 8px; background: radial-gradient(circle at 50% 0, rgba(var(--glow-rgb), .1), transparent 46%), rgba(255,255,255,.045); border: 1px solid rgba(var(--glow-rgb), .14); box-shadow: 0 18px 60px rgba(0,0,0,.16); }
.matrix-table th, .matrix-table td { padding: 17px 18px; text-align: left; border-bottom: 1px solid rgba(255,255,255,.1); vertical-align: top; }
.matrix-table th { color: #fff; background: rgba(255,255,255,.08); }
.matrix-table td { color: var(--sub); line-height: 1.75; }
.matrix-table tr:last-child td { border-bottom: 0; }
.compare-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.compare-panel { padding: 24px; border-radius: 8px; border: 1px solid rgba(var(--glow-rgb), .16); background: radial-gradient(circle at 50% 0, rgba(var(--glow-rgb), .13), transparent 56%), rgba(255,255,255,.055); box-shadow: inset 0 1px 0 rgba(255,255,255,.07); transition: transform .24s ease, border-color .24s ease, box-shadow .24s ease, background .24s ease; }
.compare-panel h3 { margin: 0 0 12px; }
.compare-panel ul { margin: 0; padding-left: 20px; color: var(--sub); line-height: 1.85; }
.faq { display: grid; gap: 12px; }
.faq details { border-radius: 8px; padding: 18px 20px; background: linear-gradient(90deg, rgba(var(--glow-rgb), .09), rgba(255,255,255,.052)); border: 1px solid rgba(var(--glow-rgb), .14); box-shadow: inset 0 1px 0 rgba(255,255,255,.06); transition: border-color .22s ease, box-shadow .22s ease, background .22s ease; }
.faq summary { cursor: pointer; font-weight: 700; }
.faq p { margin: 12px 0 0; color: var(--sub); line-height: 1.75; }
.service-proof { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.proof-card { padding: 22px; border-radius: 8px; background: radial-gradient(circle at 50% 0, rgba(var(--glow-rgb), .12), transparent 56%), rgba(255,255,255,.055); border: 1px solid rgba(var(--glow-rgb), .14); box-shadow: inset 0 1px 0 rgba(255,255,255,.06); transition: transform .24s ease, border-color .24s ease, box-shadow .24s ease, background .24s ease; }
.proof-card h3 { margin: 0 0 10px; }
.proof-card p { margin: 0; color: var(--sub); line-height: 1.75; }
.hz-roadmap { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; }
.hz-roadmap .hz-card { min-height: 178px; border-top: 3px solid var(--cyan); }
.hz-scenario-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 18px; }
.hz-scenario-main { min-height: 380px; padding: 28px; border-radius: 8px; background: radial-gradient(circle at 50% 0, rgba(32,214,189,.2), transparent 48%), linear-gradient(180deg, rgba(32,214,189,.12), rgba(255,255,255,.05)); border: 1px solid rgba(32,214,189,.26); box-shadow: inset 0 1px 0 rgba(255,255,255,.08), 0 18px 58px rgba(0,0,0,.2); }
.hz-scenario-side { display: grid; gap: 14px; }
.sz-data-lanes { display: grid; gap: 14px; }
.sz-lane { display: grid; grid-template-columns: 180px 1fr 220px; gap: 16px; align-items: center; padding: 18px; border: 1px solid rgba(49,217,255,.2); border-radius: 8px; background: linear-gradient(90deg, rgba(49,217,255,.1), rgba(255,255,255,.045)); box-shadow: inset 0 1px 0 rgba(255,255,255,.06); transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease, background .22s ease; }
.sz-lane strong { color: var(--cyan); }
.sz-lane p { margin: 0; color: var(--sub); line-height: 1.75; }
.sz-checks { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.sz-check { padding: 20px; border-radius: 8px; border: 1px solid rgba(49,217,255,.22); background: radial-gradient(circle at 50% 0, rgba(49,217,255,.18), transparent 58%), rgba(49,217,255,.055); box-shadow: inset 0 1px 0 rgba(255,255,255,.07); transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease, background .22s ease; }
.sz-check h3 { margin: 0 0 10px; }
.sz-check p { margin: 0; color: var(--sub); line-height: 1.75; }
.bj-report { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
.bj-report-card { padding: 24px; border-top: 3px solid var(--gold); background: radial-gradient(circle at 50% 0, rgba(var(--warm-rgb), .14), transparent 48%), rgba(255,255,255,.05); box-shadow: inset 0 1px 0 rgba(255,255,255,.06), 0 16px 48px rgba(0,0,0,.15); transition: transform .24s ease, border-color .24s ease, box-shadow .24s ease, background .24s ease; }
.bj-report-card h3 { margin: 0 0 10px; }
.bj-report-card p { margin: 0; color: var(--sub); line-height: 1.75; }
.bj-cost-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.bj-cost-list div { display: grid; grid-template-columns: 120px 1fr; gap: 16px; padding: 20px; border-radius: 8px; background: linear-gradient(90deg, rgba(var(--warm-rgb), .1), rgba(255,255,255,.05)); border: 1px solid rgba(var(--warm-rgb), .14); box-shadow: inset 0 1px 0 rgba(255,255,255,.06); transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease, background .22s ease; }
.bj-cost-list strong { color: var(--gold); }
.bj-cost-list p { margin: 0; color: var(--sub); line-height: 1.75; }

.sh { --cyan: #9ec5ff; --blue: #6674ff; --gold: #d7e3f7; --glow-rgb: 158, 197, 255; --warm-rgb: 215, 227, 247; background: #060b16; }
.sh .btn { border-color: rgba(158,197,255,.38); background: linear-gradient(135deg, #2d5bff, #8b68ff); }
.sh .btn.secondary { background: rgba(215,227,247,.07); border-color: rgba(215,227,247,.2); }
.sh-hero { position: relative; overflow: hidden; padding: 58px 0 72px; background: linear-gradient(115deg, rgba(6,11,22,.98), rgba(7,13,27,.88) 56%, rgba(24,22,46,.74)); }
.sh-hero .wrap { position: relative; display: grid; grid-template-columns: .92fr 1.08fr; gap: 42px; align-items: center; }
.sh-hero .wrap::before { content: "SHANGHAI"; position: absolute; right: 0; top: -34px; z-index: 0; color: rgba(255,255,255,.055); font-size: 116px; font-weight: 900; letter-spacing: 0; pointer-events: none; }
.sh-hero .wrap > * { position: relative; z-index: 1; }
.sh h1, .gz h1 { margin: 0; font-size: 50px; line-height: 1.16; }
.sh .lead, .gz .lead { margin: 22px 0 28px; color: #d5ddea; font-size: 18px; line-height: 1.9; }
.sh-console { padding: 24px; border-radius: 8px; background: radial-gradient(circle at 12% 0, rgba(158,197,255,.18), transparent 42%), linear-gradient(180deg, rgba(20,29,48,.92), rgba(8,12,24,.96)); border: 1px solid rgba(158,197,255,.22); box-shadow: 0 28px 88px rgba(0,0,0,.34), inset 0 1px 0 rgba(255,255,255,.08); transition: transform .24s ease, border-color .24s ease, box-shadow .24s ease; }
.sh-console-top { display: flex; justify-content: space-between; gap: 16px; padding-bottom: 16px; border-bottom: 1px solid rgba(255,255,255,.12); }
.sh-console-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 18px 0; }
.sh-console-grid div, .sh-ledger div { padding: 16px; border-radius: 7px; background: radial-gradient(circle at 50% 0, rgba(158,197,255,.12), transparent 58%), rgba(255,255,255,.055); border: 1px solid rgba(158,197,255,.14); transition: transform .2s ease, border-color .2s ease, background .2s ease; }
.sh-ledger { display: grid; gap: 10px; }
.sh-ledger div { display: grid; grid-template-columns: 120px 1fr 86px; gap: 12px; color: var(--sub); }
.sh-section, .gz-section { padding: 66px 0; }
.sh-board { display: grid; grid-template-columns: 1.15fr .85fr; gap: 24px; align-items: start; }
.sh-map { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.sh-map article { min-height: 180px; padding: 22px; border-radius: 8px; background: radial-gradient(circle at 50% 0, rgba(158,197,255,.13), transparent 58%), rgba(255,255,255,.055); border: 1px solid rgba(158,197,255,.16); transition: transform .24s ease, border-color .24s ease, box-shadow .24s ease, background .24s ease; }
.sh-lineup { display: grid; gap: 12px; }
.sh-lineup article { padding: 20px; border-left: 3px solid var(--cyan); background: linear-gradient(90deg, rgba(158,197,255,.12), rgba(255,255,255,.045)); transition: transform .22s ease, background .22s ease, box-shadow .22s ease; }

.gz { --cyan: #42e8d4; --blue: #18bfae; --gold: #ff7a45; --glow-rgb: 66, 232, 212; --warm-rgb: 255, 122, 69; background: #071a16; }
.gz .btn { border-color: rgba(66,232,212,.42); background: linear-gradient(135deg, #18bfae, #ff7a45); }
.gz .btn.secondary { background: rgba(255,122,69,.08); border-color: rgba(255,122,69,.26); }
.gz-hero { position: relative; overflow: hidden; padding: 72px 0 64px; background: radial-gradient(circle at 74% 18%, rgba(255,122,69,.13), transparent 34%), linear-gradient(115deg, rgba(7,26,22,.98), rgba(5,20,26,.88)); }
.gz-hero .wrap { position: relative; display: grid; grid-template-columns: 1fr 440px; gap: 40px; align-items: center; }
.gz-hero .wrap::before { content: "GUANGZHOU"; position: absolute; right: 0; top: -30px; z-index: 0; color: rgba(255,255,255,.052); font-size: 104px; font-weight: 900; letter-spacing: 0; pointer-events: none; }
.gz-hero .wrap > * { position: relative; z-index: 1; }
.gz-market { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; padding: 22px; border-radius: 10px; background: radial-gradient(circle at 50% 0, rgba(66,232,212,.16), transparent 45%), rgba(4,18,18,.88); border: 1px solid rgba(66,232,212,.24); box-shadow: 0 24px 82px rgba(0,0,0,.34), inset 0 1px 0 rgba(255,255,255,.08); transition: transform .24s ease, border-color .24s ease, box-shadow .24s ease; }
.gz-market div { min-height: 128px; padding: 18px; border-radius: 8px; background: linear-gradient(180deg, rgba(66,232,212,.1), rgba(255,255,255,.045)); border: 1px solid rgba(66,232,212,.14); transition: transform .2s ease, border-color .2s ease, background .2s ease; }
.gz-market strong, .sh-console-grid strong { display: block; margin-bottom: 8px; color: #fff; font-size: 22px; }
.gz-market span, .sh-console-grid span { color: var(--sub); line-height: 1.6; }
.gz-lanes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.gz-lane { min-height: 260px; padding: 24px; border-radius: 8px; background: radial-gradient(circle at 50% 0, rgba(255,122,69,.13), transparent 52%), rgba(255,255,255,.055); border: 1px solid rgba(255,122,69,.16); transition: transform .24s ease, border-color .24s ease, box-shadow .24s ease, background .24s ease; }
.gz-lane h3, .sh-map h3, .sh-lineup h3 { margin: 0 0 10px; }
.gz-lane p, .sh-map p, .sh-lineup p { margin: 0; color: var(--sub); line-height: 1.75; }
.gz-flow { display: grid; grid-template-columns: 1fr 80px 1fr 80px 1fr; gap: 10px; align-items: center; }
.gz-flow-node { min-height: 170px; padding: 22px; border-radius: 8px; background: radial-gradient(circle at 50% 0, rgba(66,232,212,.16), transparent 58%), rgba(255,255,255,.055); border: 1px solid rgba(66,232,212,.2); text-align: center; display: grid; place-items: center; transition: transform .24s ease, border-color .24s ease, box-shadow .24s ease, background .24s ease; }
.gz-flow-node strong { display: block; margin-bottom: 10px; font-size: 22px; }
.gz-arrow { height: 2px; background: linear-gradient(90deg, transparent, var(--gold), transparent); box-shadow: 0 0 16px rgba(255,122,69,.5); }

/* Shared code-only interaction surface: cut corners replace PNG hover frames. */
:where(.hz-card, .sz-card, .bj-card, .proof-card, .compare-panel, .sz-check, .bj-report-card, .sh-map article, .gz-lane, .gz-flow-node) {
  --surface-cut: 28px;
  position: relative;
  isolation: isolate;
  overflow: hidden;
}
:where(.hz-card, .sz-card, .bj-card, .proof-card, .compare-panel, .sz-check, .bj-report-card, .sh-map article, .gz-lane, .gz-flow-node)::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0;
  background:
    radial-gradient(circle at 28% 18%, rgba(var(--glow-rgb), .28), transparent 42%),
    linear-gradient(145deg, rgba(var(--glow-rgb), .18), rgba(var(--glow-rgb), .04) 58%, rgba(var(--warm-rgb), .09));
  transition: opacity .24s ease;
}
:where(.hz-card, .sz-card, .bj-card, .proof-card, .compare-panel, .sz-check, .bj-report-card, .sh-map article, .gz-lane, .gz-flow-node)::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  padding: 1px;
  pointer-events: none;
  opacity: 0;
  clip-path: polygon(0 0, calc(100% - var(--surface-cut)) 0, 100% var(--surface-cut), 100% 100%, var(--surface-cut) 100%, 0 calc(100% - var(--surface-cut)));
  background: linear-gradient(135deg, rgba(var(--glow-rgb), .9), rgba(var(--glow-rgb), .22) 48%, rgba(var(--warm-rgb), .72));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  transition: opacity .24s ease;
}

@media (hover: hover) {
  :where(.hz-card, .sz-card, .bj-card, .proof-card, .compare-panel, .sz-check, .bj-report-card, .sh-map article, .gz-lane, .gz-flow-node):hover {
    transform: translateY(-5px);
    clip-path: polygon(0 0, calc(100% - var(--surface-cut)) 0, 100% var(--surface-cut), 100% 100%, var(--surface-cut) 100%, 0 calc(100% - var(--surface-cut)));
    border-color: transparent;
    box-shadow: 0 18px 46px rgba(var(--glow-rgb), .18), inset 0 1px 0 rgba(255,255,255,.1);
  }
  :where(.hz-card, .sz-card, .bj-card, .proof-card, .compare-panel, .sz-check, .bj-report-card, .sh-map article, .gz-lane, .gz-flow-node):hover::before,
  :where(.hz-card, .sz-card, .bj-card, .proof-card, .compare-panel, .sz-check, .bj-report-card, .sh-map article, .gz-lane, .gz-flow-node):hover::after {
    opacity: 1;
  }
  .commerce-board:hover, .bj-hero-visual:hover, .sh-console:hover, .gz-market:hover {
    transform: translateY(-4px);
    border-color: rgba(var(--glow-rgb), .42);
    box-shadow: 0 22px 56px rgba(var(--glow-rgb), .16), inset 0 1px 0 rgba(255,255,255,.08);
  }
  .kpi:hover, .visual-grid div:hover, .bj-aside-points div:hover, .sh-console-grid div:hover, .sh-ledger div:hover, .gz-market div:hover, .protocol-list div:hover, .bj-cost-list div:hover {
    transform: translateY(-2px);
    border-color: rgba(var(--glow-rgb), .4);
    background: rgba(var(--glow-rgb), .1);
    box-shadow: 0 10px 26px rgba(var(--glow-rgb), .1);
  }
  .matrix-table tbody tr { transition: background .18s ease, color .18s ease; }
  .matrix-table tbody tr:hover td { color: #eaf7ff; background: rgba(var(--glow-rgb), .08); }
  .faq details:hover {
    border-color: rgba(var(--glow-rgb), .35);
    background: linear-gradient(90deg, rgba(var(--glow-rgb), .1), rgba(255,255,255,.025));
    box-shadow: inset 3px 0 0 rgba(var(--glow-rgb), .52);
  }
  .device-node:hover {
    transform: translateY(-4px);
    border-color: rgba(var(--glow-rgb), .5);
    box-shadow: 0 0 30px rgba(var(--glow-rgb), .2);
  }
  .sz-lane:hover, .sh-lineup article:hover {
    transform: translateX(6px);
    background: linear-gradient(90deg, rgba(var(--glow-rgb), .14), rgba(255,255,255,.045));
    box-shadow: -3px 0 0 rgba(var(--glow-rgb), .58), 0 12px 28px rgba(var(--glow-rgb), .1);
  }
  .strip-list div:hover {
    background: radial-gradient(circle at 12% 50%, rgba(var(--glow-rgb), .14), transparent 44%);
    box-shadow: inset 3px 0 0 rgba(var(--glow-rgb), .42);
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

@media (max-width: 980px) {
  .nav { display: none; }
  .hz-hero-grid, .hz-split, .protocol-panel, .bj-hero .wrap, .bj-layout, .contact-box, .sh-hero .wrap, .gz-hero .wrap, .sh-board { grid-template-columns: 1fr; }
  .hz h1, .sz h1, .bj h1, .sh h1, .gz h1 { font-size: 36px; }
  .commerce-board > img, .protocol-panel img { height: 240px; }
  .hz-hero .wrap::before, .sz-hero .wrap::before, .bj-hero .wrap::before, .sh-hero .wrap::before, .gz-hero .wrap::before { right: 0; top: 18px; font-size: 62px; }
  .board-top, .hz-card-grid, .strip-list, .sz-grid, .device-map, .bj-knowledge, .compare-grid, .service-proof, .hz-roadmap, .hz-scenario-grid, .sz-checks, .bj-report, .bj-cost-list, .bj-aside-points, .sh-console-grid, .sh-map, .gz-market, .gz-lanes, .gz-flow { grid-template-columns: 1fr; }
  .sz-lane, .bj-cost-list div, .sh-ledger div { grid-template-columns: 1fr; }
  .connector, .gz-arrow { height: 38px; width: 2px; margin: 0 auto; background: linear-gradient(180deg, transparent, var(--cyan), transparent); }
  .bj-step { grid-template-columns: 1fr; }
  .cta-box { align-items: flex-start; flex-direction: column; }
}