@charset "UTF-8";

/* Brand system: cobalt infinity, teal connection, golden energy nodes. */
:root {
  --bg: #07152d;
  --panel: #0e2342;
  --line: #263f5d;
  --ink: #f3f8ff;
  --muted: #a4b9d0;
  --blue: #175dc5;
  --cyan: #35dbd4;
  --teal: #008d96;
  --gold: #f6c35b;
  --gold-light: #ffda87;
  --light: #f1f6fc;
  --dark: #102a4a;
  --max: 1280px;
  color-scheme: dark;
  font-family: Inter, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { margin: 0; background: var(--bg); color: var(--ink); font-size: 1rem; line-height: 1.7; }
button, a { -webkit-tap-highlight-color: transparent; touch-action: manipulation; }
button, input { font: inherit; }
button { cursor: pointer; border: 0; }
button:disabled { cursor: default; }
a { color: inherit; text-decoration: none; }
button:focus-visible, a:focus-visible, summary:focus-visible { outline: 3px solid var(--gold); outline-offset: 5px; }
p, h1, h2, h3 { margin-top: 0; }
.shell { width: min(var(--max), calc(100% - 96px)); margin-inline: auto; }
.skip-link { position: fixed; z-index: 100; top: -100px; left: 20px; background: var(--gold); color: var(--dark); padding: 12px; }
.skip-link:focus { top: 16px; }

/* Navigation */
.site-header { position: sticky; top: 0; z-index: 20; background: rgb(7 21 45 / 94%); border-bottom: 1px solid #89b4df26; backdrop-filter: blur(18px); }
.nav-row { min-height: 88px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-size: 1.5rem; line-height: 1.3; letter-spacing: -.045em; white-space: nowrap; }
.brand strong { font-weight: 550; }
.brand-logo { display: block; width: 76px; height: 42px; object-fit: contain; flex-shrink: 0; }
.desktop-nav { display: flex; gap: 36px; font-size: .9rem; color: #c1d1e3; }
.desktop-nav a { transition: color .2s; }
.desktop-nav a:hover { color: var(--cyan); }
.button { display: inline-flex; justify-content: center; align-items: center; gap: 30px; min-height: 54px; padding: 14px 24px; border-radius: 7px; font-size: 1rem; font-weight: 600; line-height: 1.5; transition: background .2s, transform .2s, box-shadow .2s; }
.button:hover { transform: translateY(-2px); }
.button-gold { background: var(--gold); color: #172941; box-shadow: 0 4px 22px #f6c35b0c; }
.button-gold:hover { background: var(--gold-light); box-shadow: 0 6px 24px #f6c35b20; }
.button span { font-size: 1.4rem; line-height: 1; }
.button-small { font-size: .9rem; min-height: 42px; padding: 10px 18px; gap: 24px; }
.menu-toggle { display: none; background: none; width: 42px; height: 42px; padding: 9px; }
.menu-toggle span { display: block; height: 2px; background: var(--ink); margin: 6px 0; }
.mobile-nav { padding: 10px 24px 24px; border-top: 1px solid var(--line); }
.mobile-nav a { display: block; padding: 10px; }
.mobile-nav[hidden] { display: none; }

/* Hero: deep blue ground, cyan emphasis, gold action. */
.hero { display: grid; grid-template-columns: 1fr 1.06fr; gap: 40px; align-items: center; min-height: 680px; padding-block: 70px 65px; }
.hero-copy { position: relative; z-index: 2; }
.eyebrow { font-size: .75rem; font-weight: 550; letter-spacing: .12em; line-height: 1.7; color: var(--muted); margin-bottom: 26px; }
.tiny-cross { font-size: 1.15rem; color: var(--gold); margin-right: 8px; vertical-align: middle; }
h1 { font-size: clamp(2.65rem, 4.2vw, 4.15rem); line-height: 1.27; letter-spacing: -.035em; font-weight: 600; margin-bottom: 28px; }
h1 span { color: var(--cyan); background: linear-gradient(100deg, #64aeff, #36e0d2); background-clip: text; -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero-description { max-width: 445px; color: #b8c9dc; line-height: 1.9; font-size: 1.05rem; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 28px; align-items: center; flex-wrap: wrap; }
.text-link { font-size: .95rem; border-bottom: 1px solid #4b6989; padding-block: 8px; display: inline-flex; gap: 22px; align-items: center; }
.text-link:hover { color: var(--cyan); border-color: var(--cyan); }
.hero-footnote { color: #93a9c0; font-size: .875rem; margin-top: 26px; margin-bottom: 0; }
.hero-visual { position: relative; min-width: 0; align-self: stretch; min-height: 460px; display: flex; flex-direction: column; justify-content: center; overflow: hidden; border: 1px solid #36689155; border-radius: 20px; background: radial-gradient(ellipse at 62% 48%, #0a486249, transparent 68%); }
.visual-kicker { display: flex; justify-content: space-between; gap: 16px; color: #a4bdd7; font: 500 .75rem/1.5 Consolas, monospace; letter-spacing: .065em; padding: 21px 22px; margin-bottom: auto; }
.visual-kicker>span:last-child { color: #e6c785; white-space: nowrap; }
.hero-image { display: block; width: 112%; max-width: none; align-self: center; height: auto; aspect-ratio: 3/2; object-fit: contain; margin-block: 0; mix-blend-mode: lighten; mask-image: linear-gradient(to right, transparent 0%, black 10%, black 90%, transparent 100%); }
.visual-caption { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 18px 22px; border-top: 1px solid #38608366; margin-top: auto; background: #0b23423b; }
.mini-label { color: #95acc3; font-size: .75rem; }
.visual-caption p { margin: 6px 0 0; font-size: .95rem; }
.visual-caption i { font-style: normal; color: #468198; padding: 0 12px; }
.round-plus { border: 1px solid #397d9299; border-radius: 50%; width: 36px; height: 36px; flex-shrink: 0; display: grid; place-items: center; font-size: 1.6rem; color: var(--cyan); line-height: 1; }
.scope-band { border-block: 1px solid var(--line); background: #0b1d38; }
.scope-inner { display: flex; align-items: center; justify-content: space-between; gap: 28px; padding-block: 26px; font-size: .95rem; }
.scope-inner p { margin: 0; color: #95b0cc; font-size: .875rem; }
.scope-inner span { white-space: nowrap; }
.scope-inner span:before { content: '+'; color: var(--gold); margin-right: 12px; font-size: 1.15rem; }

/* Solution cards */
.section-pad { padding-block: 100px; }
.section-heading { display: flex; justify-content: space-between; align-items: flex-end; gap: 40px; margin-bottom: 50px; }
h2 { font-size: clamp(2rem, 3vw, 2.8rem); font-weight: 550; line-height: 1.4; letter-spacing: -.025em; margin-bottom: 0; }
.section-intro { max-width: 350px; margin: 0; font-size: 1rem; color: var(--muted); line-height: 1.9; }
.light-section { background: var(--light); color: var(--dark); color-scheme: light; }
.light-section .eyebrow { color: #1b6e91; margin-bottom: 18px; }
.light-section .section-intro { color: #536981; }
.solution-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.solution-card { position: relative; padding: 30px 28px 25px; background: #fff; border: 1px solid #d2dfed; display: flex; flex-direction: column; min-width: 0; border-radius: 12px; overflow: hidden; transition: transform .2s, border-color .2s, box-shadow .2s; }
.solution-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, #154cb4, #02afb5); }
.solution-card:hover { transform: translateY(-4px); border-color: #47a9bc; box-shadow: 0 12px 30px #153c6410; }
.card-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 30px; }
.card-number { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 50%; background: #fff1cf; color: #865d12; font-size: .95rem; font-family: Consolas, monospace; }
.card-tag { font-size: .75rem; color: #5b728c; }
.solution-card h3 { font-size: 1.55rem; line-height: 1.55; font-weight: 600; letter-spacing: -.02em; margin-bottom: 20px; }
.solution-card>p { font-size: 1rem; line-height: 1.9; color: #536b83; margin-bottom: 30px; flex: 1; }
.card-deliverable { border-top: 1px solid #dce7f0; padding-top: 21px; display: flex; flex-direction: column; gap: 5px; }
.card-deliverable>span { font-size: .75rem; color: #61778d; }
.card-deliverable strong { font-size: .875rem; font-weight: 500; color: #234d6c; }
.card-link { display: flex; justify-content: space-between; align-items: center; width: 100%; margin-top: 30px; padding: 0; background: none; color: #12519a; text-align: left; font-size: .95rem; font-weight: 600; min-height: 40px; }
.card-link>span { font-size: 1.2rem; display: grid; place-items: center; background: #e8f3fa; border-radius: 50%; width: 34px; height: 34px; }
.card-link:hover>span { background: #c9f2f1; color: #006977; }
.light-section a:focus-visible, .light-section button:focus-visible { outline-color: #0d62bd; }

/* Product logic */
.intelligence { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; align-items: center; }
.intelligence h2 span { color: #68cbd9; }
.body-muted { font-size: 1rem; color: #a6bcd3; line-height: 1.9; max-width: 450px; margin-top: 28px; margin-bottom: 36px; }
.principle { display: flex; gap: 20px; padding-block: 18px; border-top: 1px solid var(--line); }
.principle>span { font: 500 .8rem/1.7 Consolas, monospace; color: var(--gold); padding-top: 2px; }
.principle h3 { font-size: 1.05rem; margin-bottom: 8px; font-weight: 500; }
.principle p { font-size: 1rem; color: #a1b5cc; margin: 0; max-width: 380px; }
.model-panel { background: linear-gradient(135deg, #10264b, #0b3043); border: 1px solid #2a6179; border-radius: 16px; padding: 28px; box-shadow: 0 24px 70px #010c1b40; }
.model-header { display: flex; gap: 10px; align-items: center; border-bottom: 1px solid #305573; padding-bottom: 20px; margin-bottom: 24px; }
.model-logo { display: block; width: 46px; height: 26px; object-fit: contain; flex-shrink: 0; }
.model-header strong { font-size: 1rem; font-weight: 500; }
.model-header>span:last-child { margin-left: auto; color: #a1bad2; font-size: .75rem; }
.model-stage { padding: 5px 0; }
.stage-label { font: 400 .75rem/1.6 Consolas, "Microsoft YaHei", sans-serif; color: #a8c3da; }
.condition-tags { display: flex; gap: 8px; margin-top: 15px; flex-wrap: wrap; }
.condition-tags span { border: 1px solid #395775; background: #17334f; border-radius: 5px; padding: 6px 12px; font-size: .875rem; color: #d9e9f6; }
.model-connector { color: var(--gold); margin: 12px 0; text-align: center; font-size: 1.25rem; }
.engine { text-align: center; border: 1px solid #28aeb7; background: linear-gradient(120deg, #134784, #085865); border-radius: 9px; padding: 24px 12px; }
.engine-label { font: 400 .75rem/1.6 Consolas, monospace; letter-spacing: .13em; color: #a8fbf2; }
.engine h3 { font-size: 1.4rem; font-weight: 500; color: #fff; margin: 9px 0 18px; }
.engine>div { display: flex; justify-content: center; align-items: center; gap: 14px; font-size: .875rem; color: #d7f1f5; }
.engine b { font-weight: 400; color: var(--gold); }
.output-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 14px; }
.output-row>span { text-align: center; padding: 10px 5px; border-bottom: 2px solid #33c6c7; color: #e2f1fb; font-size: .875rem; }
.model-note { color: #9bb4ca; font-size: .75rem; margin: 25px 0 0; line-height: 1.8; }

/* Project path */
.workflow { background: #0b1e3a; border-block: 1px solid #263f5d; }
.step-grid { display: grid; grid-template-columns: repeat(4, 1fr); list-style: none; margin: 0; padding: 0; gap: 40px; }
.step-grid li { position: relative; border-top: 1px solid #326881; padding-top: 25px; }
.step-number { display: inline-grid; place-items: center; width: 48px; height: 48px; border: 1px solid #edc36791; border-radius: 50%; background: #f6c35b0d; font-size: 1.15rem; font-family: Consolas, monospace; color: var(--gold); }
.step-grid h3 { font-size: 1.2rem; font-weight: 500; margin-top: 20px; margin-bottom: 13px; }
.step-grid p { font-size: 1rem; line-height: 1.8; color: #a9bdd2; min-height: 86px; margin-bottom: 22px; }
.step-output { display: inline-block; font-size: .875rem; color: #86dadc; background: #0d3c4c; padding: 5px 10px; border-radius: 4px; }

/* Brand and conversion */
.about { display: grid; grid-template-columns: 1fr 1.15fr; gap: 100px; }
.about-brand { display: flex; flex-direction: column; align-items: flex-start; gap: 24px; margin-top: 52px; max-width: 365px; padding: 32px; border: 1px solid #275777; border-radius: 16px; background: linear-gradient(130deg, #0b285c, #073844); }
.about-logo { display: block; width: 280px; max-width: 100%; height: auto; object-fit: contain; }
.about-brand-name { font-size: 2.4rem; letter-spacing: -.04em; line-height: 1.3; color: var(--ink); }
.about h2 { margin-bottom: 30px; }
.about p:not(.eyebrow) { color: #acbfd3; line-height: 1.9; }
.about .about-belief { color: #80d8dc!important; margin-bottom: 0; padding-top: 12px; }
.contact-section { position: relative; background: linear-gradient(112deg, #0c3475 0%, #08516b 65%, #086a70 100%); color: var(--ink); padding-block: 75px; border-top: 1px solid #2b9bb16b; border-bottom: 1px solid #2b9bb16b; }
.contact-layout { display: grid; grid-template-columns: 1fr 340px; align-items: center; gap: 60px; }
.contact-section .eyebrow { color: #9be4e5; margin-bottom: 20px; }
.contact-section h2 { font-size: clamp(2.4rem, 3.7vw, 3.5rem); line-height: 1.35; margin-bottom: 22px; }
.contact-section p { color: #c4dce9; line-height: 1.9; }
.contact-section .button { margin-top: 8px; }
.contact-card { text-align: center; padding: 34px 30px; background: #071d3e80; border: 1px solid #71ccd267; border-radius: 16px; }
.wechat-icon { width: 64px; height: 64px; fill: none; stroke: var(--cyan); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; display: block; margin: 0 auto 18px; }
.wechat-icon circle { fill: var(--cyan); stroke: none; }
.contact-card strong { font-size: 1.1rem; font-weight: 550; }
.contact-card p { font-size: 1rem; margin-top: 12px; margin-bottom: 20px; }
.preview-label { display: inline-block; color: #f6d798; border: 1px solid #ad976760; padding: 3px 10px; border-radius: 20px; font-size: .75rem; }
.site-footer { display: flex; align-items: center; gap: 32px; min-height: 110px; padding-block: 24px; }
.site-footer .brand { font-size: 1.3rem; }
.site-footer .brand-logo { width: 60px; height: 34px; }
.site-footer p { font-size: .875rem; color: #92a9c1; margin: 0; }
.site-footer>span { font-size: .75rem; color: #92a9c1; margin-left: auto; }
.back-top { display: grid; place-items: center; width: 36px; height: 36px; border: 1px solid #2c557b; border-radius: 5px; color: #b4daec; }

/* WeChat consultation dialog */
dialog { width: min(470px, calc(100% - 32px)); border: 1px solid #42748b; border-radius: 16px; background: #0d2542; color: var(--ink); padding: 40px; box-shadow: 0 24px 120px #020b1b99; max-height: 90dvh; overflow: auto; }
dialog::backdrop { background: #020b20bd; backdrop-filter: blur(8px); }
dialog h2 { font-size: 1.8rem; line-height: 1.4; margin-bottom: 14px; }
dialog .eyebrow { margin-bottom: 16px; color: #75d4d5; }
dialog p { color: var(--muted); }
.dialog-close { position: absolute; right: 12px; top: 8px; color: #c9ddee; background: none; font-size: 2rem; width: 40px; height: 40px; line-height: 1; }
.qr-placeholder { background: #0c3549; border: 1px dashed #528699; border-radius: 10px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; padding: 24px; margin-block: 25px 18px; min-height: 200px; }
.qr-placeholder svg { width: 56px; height: 56px; fill: none; stroke: var(--cyan); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 10px; }
.qr-placeholder svg circle { fill: var(--cyan); stroke: none; }
.qr-placeholder span { font-size: .875rem; color: #a8c6d8; }
.dialog-note { font-size: .8rem; margin: 0; }
.contact-scenario { font-size: .875rem; color: #f0d6a0!important; border-left: 2px solid var(--gold); padding-left: 12px; margin-top: 18px; }

/* Responsive layouts */
@media (min-width:1600px) { .hero { min-height: 740px; } }
@media (max-width:1100px) {
  .solution-card { padding: 25px 22px; }
  .solution-card h3 { font-size: 1.35rem; }
  .intelligence { gap: 50px; }
  .step-grid { gap: 26px; }
  .about { gap: 60px; }
  .solution-grid { gap: 16px; }
}
@media (max-width:1000px) {
  .shell { width: calc(100% - 56px); }
  .brand { gap: 9px; }
  .brand-logo { width: 62px; height: 35px; }
  .desktop-nav { gap: 24px; }
  .hero { gap: 24px; min-height: 620px; }
  h1 { font-size: 3.1rem; }
  .hero-description { font-size: 1rem; }
  .hero-visual { min-height: 400px; }
  .hero-actions { gap: 20px; }
  .scope-inner { gap: 18px; }
  .scope-inner p { max-width: 110px; }
  .visual-kicker { padding-inline: 16px; letter-spacing: 0; }
  .visual-caption { padding-inline: 16px; }
  .visual-caption i { padding-inline: 7px; }
  .about-brand { padding: 26px; }
}
@media (max-width:850px) {
  .section-pad { padding-block: 75px; }
  .section-heading { align-items: flex-start; gap: 28px; }
  .section-intro { max-width: 260px; }
  .solution-grid { grid-template-columns: 1fr; }
  .solution-card { display: grid; grid-template-columns: 1fr 1fr; column-gap: 30px; padding: 30px; }
  .card-top { grid-column: 1/-1; margin-bottom: 20px; }
  .solution-card h3 { grid-column: 1; font-size: 1.6rem; }
  .solution-card>p { grid-column: 2; grid-row: 2; margin-bottom: 20px; }
  .card-deliverable { grid-column: 1; align-self: end; }
  .card-link { grid-column: 2; align-self: end; margin-top: 0; }
  .intelligence { grid-template-columns: 1fr; gap: 40px; }
  .intelligence-copy { max-width: 640px; }
  .body-muted, .principle p { max-width: none; }
  .model-panel { max-width: 600px; width: 100%; justify-self: center; }
  .step-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .step-grid p { min-height: 0; }
  .about { gap: 45px; }
  .about-brand-name { font-size: 2rem; }
  .contact-layout { grid-template-columns: 1fr 290px; gap: 35px; }
  .site-footer { flex-wrap: wrap; gap: 18px; }
  .site-footer p { display: none; }
}
@media (max-width:760px) {
  html { scroll-padding-top: 84px; }
  .shell { width: calc(100% - 40px); }
  .nav-row { min-height: 72px; gap: 10px; }
  .brand { font-size: 1.15rem; gap: 8px; }
  .brand-logo { width: 56px; height: 32px; }
  .desktop-nav { display: none; }
  .nav-row>.button { margin-left: auto; font-size: .875rem; padding: 10px 12px; min-height: 40px; gap: 0; }
  .nav-row>.button>span { display: none; }
  .menu-toggle { display: block; width: 36px; padding: 7px; flex-shrink: 0; }
  .hero { grid-template-columns: 1fr; padding-block: 48px 35px; gap: 36px; min-height: 0; }
  h1 { font-size: clamp(2.5rem, 8.8vw, 3.6rem); margin-bottom: 24px; }
  .eyebrow { letter-spacing: .085em; margin-bottom: 22px; }
  .hero-description { max-width: 520px; }
  .hero-visual { min-height: 0; border-radius: 14px; }
  .hero-image { width: 108%; }
  .visual-kicker { padding-block: 16px; }
  .visual-caption { padding-block: 16px; }
  .scope-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 24px; padding-block: 25px; }
  .scope-inner p { grid-column: 1/-1; max-width: none; }
  .scope-inner span { font-size: .95rem; }
  dialog { padding: 32px 24px; }
}
@media (max-width:600px) {
  .section-pad { padding-block: 60px; }
  .section-heading { flex-direction: column; gap: 22px; margin-bottom: 32px; }
  .section-heading .eyebrow { margin-bottom: 16px; }
  .section-intro { max-width: none; }
  .solution-card { display: flex; gap: 0; padding: 26px; }
  .solution-card h3 { font-size: 1.45rem; }
  .solution-card>p { margin-bottom: 25px; }
  .card-top { margin-bottom: 25px; }
  .card-deliverable { align-self: stretch; }
  .card-link { margin-top: 20px; align-self: stretch; }
  .model-panel { padding: 22px 18px; }
  .condition-tags { gap: 6px; }
  .condition-tags span { padding: 6px 9px; }
  .engine>div { gap: 10px; }
  .step-grid { gap: 30px 25px; }
  .step-grid h3 { font-size: 1.1rem; margin-top: 16px; }
  .step-output { padding: 4px 8px; }
  .about { grid-template-columns: 1fr; gap: 26px; }
  .about-brand { flex-direction: row; align-items: center; gap: 18px; margin-top: 0; margin-bottom: 0; max-width: none; padding: 24px; }
  .about-logo { width: 106px; }
  .about-brand-name { font-size: 1.6rem; }
  .contact-section { padding-block: 50px; }
  .contact-layout { grid-template-columns: 1fr; gap: 38px; }
  .contact-card { max-width: 340px; width: 100%; justify-self: center; }
  .contact-section h2 { font-size: 2.55rem; }
  .site-footer { gap: 20px 16px; min-height: 95px; }
  .site-footer .brand { font-size: 1.1rem; gap: 7px; }
  .site-footer .brand-logo { width: 48px; height: 28px; }
  .back-top { display: none; }
}
@media (max-width:360px) {
  .nav-row>.button { display: none; }
  .menu-toggle { margin-left: auto; }
  .hero-actions { gap: 16px; }
  .button { padding-inline: 18px; }
  .visual-kicker { font-size: .75rem; gap: 8px; flex-wrap: wrap; }
  .visual-caption i { padding-inline: 5px; }
  .engine>div { gap: 8px; }
  .about-brand { padding: 18px; gap: 12px; }
  .about-logo { width: 88px; }
  .about-brand-name { font-size: 1.4rem; }
}
@media (prefers-reduced-motion:reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none!important; transition: none!important; }
}

/* White studio identity: original logo, quiet blue/red accents, walnut emphasis. */
:root{--bg:#fff;--panel:#fff;--line:#e4e5e5;--ink:#242a30;--muted:#606973;--blue:#2457a6;--cyan:#2457a6;--teal:#2457a6;--gold:#885c3e;--gold-light:#70492f;--wood:#885c3e;--red:#a83b32;--light:#fafafa;--dark:#242a30;color-scheme:light}
body{background:#fff;color:var(--ink)}
.site-header{background:rgb(255 255 255 / 96%);border-bottom:1px solid #e9e9e7}
.brand{gap:0;line-height:1}
.logo-original{position:relative;display:block;overflow:hidden;flex-shrink:0;aspect-ratio:5.45;background:#fff}
.logo-original img{position:absolute;display:block;width:129%;height:auto;max-width:none;left:-14.5%;top:50%;transform:translateY(-50%)}
.logo-nav{width:244px}
.logo-model{width:182px}
.logo-about{width:100%;max-width:360px}
.site-footer .logo-nav{width:218px}
.desktop-nav{color:#51585f}
.desktop-nav a:hover{color:var(--blue)}
.button{border-radius:4px}
.button-wood{background:var(--wood);color:#fff;box-shadow:none}
.button-wood:hover{background:#70492f;box-shadow:0 4px 14px #885c3e1a}
.skip-link{background:var(--wood);color:#fff}
.menu-toggle span{background:#252b32}
.eyebrow{color:#666d75;letter-spacing:.12em}
.tiny-cross{color:var(--red)}
h1{font-weight:600;letter-spacing:-.04em}
h1 span{color:var(--wood);background:none;-webkit-text-fill-color:currentColor}
.hero{gap:52px;padding-block:65px;min-height:650px}
.hero-description{color:#565f68}
.hero-footnote{color:#6b7279}
.text-link{border-color:#b9c4cf;color:#254f80}
.text-link:hover{color:var(--blue);border-color:var(--blue)}
.hero-visual{border:0;border-radius:0;background:#fff;overflow:hidden;min-height:440px}
.visual-kicker{color:#6b747c;border-top:1px solid #dededb;padding:17px 4px;margin-inline:14px}
.visual-kicker>span:last-child{color:var(--red)}
.hero-image{width:108%;mix-blend-mode:normal;mask-image:none;margin-block:6px}
.visual-caption{background:#fff;border-top:1px solid #ddd6cf;padding:19px 4px;margin-inline:14px}
.mini-label{color:#69727a}
.visual-caption p{color:#343d46}
.visual-caption i{color:#ab9584}
.round-plus{border:1px solid #d5c4b7;color:var(--wood);border-radius:3px}
.scope-band{background:#fff;border-block:1px solid #e4e5e5}
.scope-inner p{color:#697078}
.scope-inner span:before{color:var(--red)}
.light-section{background:#fafafa;color:var(--ink)}
.light-section .eyebrow{color:#2457a6}
.light-section .section-intro{color:#626a72}
.section-intro,.body-muted{color:#626a72}
.solution-grid{gap:26px}
.solution-card{border:1px solid #e2e4e6;border-radius:5px;background:#fff;box-shadow:none}
.solution-card::before{height:3px;background:var(--blue)}
.solution-card:nth-child(2)::before{background:var(--red)}
.solution-card:nth-child(3)::before{background:var(--wood)}
.solution-card:hover{border-color:#b9c5cf;box-shadow:0 10px 26px #1e293207}
.card-number{background:#f5eee7;color:#7b5135;border-radius:4px}
.card-tag{color:#616b75}
.solution-card h3{color:#252e37}
.solution-card>p{color:#626b74}
.card-deliverable{border-color:#e5e7e8}
.card-deliverable>span{color:#6a7178}
.card-deliverable strong{color:#525d68}
.card-link{color:#2457a6}
.card-link>span{background:#f0f4f9;border-radius:3px}
.card-link:hover>span{background:#e1eaf5;color:#173b72}
.intelligence h2 span{color:var(--wood)}
.principle>span{color:var(--red)}
.principle p{color:#626b74}
.model-panel{background:#fff;border:1px solid #ddd8d2;border-radius:6px;box-shadow:0 16px 48px #37302a07}
.model-header{border-color:#e4e2df;padding-bottom:20px}
.model-header>span:last-child{color:#626b74}
.stage-label{color:#616b75}
.condition-tags span{border-color:#dce2e8;background:#f7f9fc;color:#4e5f70;border-radius:3px}
.model-connector{color:var(--wood)}
.engine{border:1px solid #d6c3b3;background:#f8f3ef;border-radius:4px}
.engine-label{color:#865f43}
.engine h3{color:#3e332b}
.engine>div{color:#685646}
.engine b{color:var(--red)}
.output-row>span{border-color:#6283ad;color:#354e6d}
.model-note{color:#687078}
.workflow{background:#fafafa;border-block:1px solid #e4e5e5}
.step-grid li{border-color:#d4dce5}
.step-number{background:#fff;border-color:#d8c5b5;color:var(--wood);border-radius:5px}
.step-grid p{color:#626b74}
.step-output{background:#f2ece6;color:#75563e;border-radius:3px}
.about-brand{background:#fff;border:1px solid #e4e1dd;border-radius:4px;box-shadow:none;padding:50px 24px;margin-top:45px;max-width:430px;min-height:190px;justify-content:center}
.about p:not(.eyebrow){color:#626b74}
.about .about-belief{color:#84593e!important}
.contact-section{background:#f7f3ee;color:#2c2b2a;border-block:1px solid #e4d9cc}
.contact-section .eyebrow{color:var(--red)}
.contact-section p{color:#686159}
.contact-card{background:#fff;border:1px solid #d9cec2;border-radius:5px}
.wechat-icon{stroke:var(--wood)}
.wechat-icon circle{fill:var(--wood)}
.preview-label{color:#77563e;border-color:#d8c7b7;border-radius:3px;background:#fcfaf7}
.site-footer p,.site-footer>span{color:#697078}
.back-top{border-color:#d2dce7;color:var(--blue);border-radius:3px}
dialog{background:#fff;color:#242a30;border-color:#d5cbc1;box-shadow:0 24px 120px #13243633;border-radius:8px}
dialog::backdrop{background:#1d2b3a75;backdrop-filter:blur(6px)}
dialog .eyebrow{color:var(--red)}
dialog p{color:#626b74}
.dialog-close{color:#515b65}
.qr-placeholder{background:#fbf9f6;border:1px dashed #bba78f;border-radius:4px}
.qr-placeholder svg{stroke:var(--wood)}
.qr-placeholder svg circle{fill:var(--wood)}
.qr-placeholder span{color:#716a61}
.contact-scenario{color:#795236!important;border-color:var(--wood)}
@media(max-width:1100px){.solution-grid{gap:18px}}
@media(max-width:1000px){.logo-nav{width:215px}.hero{gap:28px}.logo-model{width:164px}.about-brand{padding:38px 20px}}
@media(max-width:850px){.hero{gap:24px}.about-brand{min-height:155px;padding:30px 18px}}
@media(max-width:760px){.logo-nav{width:174px}.hero{gap:30px;padding-block:45px 35px;min-height:0}.hero-visual{min-height:0}.nav-row{gap:8px}.nav-row>.button{padding-inline:9px;font-size:.875rem}.hero-image{width:108%}.visual-kicker,.visual-caption{margin-inline:0}.logo-model{width:164px}}
@media(max-width:600px){.about-brand{margin-top:0;padding:38px 20px;min-height:145px}.logo-about{max-width:310px}.site-footer .logo-nav{width:174px}.site-footer{gap:14px}.contact-card{border-radius:4px}}
@media(max-width:400px){.nav-row>.button{display:none}.menu-toggle{margin-left:auto}.logo-nav{width:190px}.logo-model{width:155px}.model-header{gap:8px}}

/* Tabbed energy scenes */
.hero-visual{min-width:0}
.scene-tabs{display:flex;gap:24px;margin:0 14px;border-bottom:1px solid var(--line)}
.scene-tabs button{position:relative;display:flex;gap:10px;align-items:center;min-height:48px;padding:8px 0;border:0;background:none;color:var(--muted);font:inherit;font-size:14px;cursor:pointer}
.scene-tabs button[aria-selected="true"]{color:var(--wood)}
.scene-tabs button[aria-selected="true"]::after{content:"";position:absolute;bottom:-1px;left:0;right:0;height:3px;background:var(--wood)}
.scene-tabs button:focus-visible,.scene-panel:focus-visible{outline:2px solid var(--blue);outline-offset:-2px}
.scene-viewport{overflow:hidden;touch-action:pan-y;cursor:grab}
.scene-viewport:active{cursor:grabbing}
.scene-track{display:flex;transition:transform .42s cubic-bezier(.22,.68,0,1)}
.scene-panel{flex:0 0 100%;min-width:0}
.scene-panel .hero-image{display:block;width:100%;height:auto;aspect-ratio:3/2;margin:6px 0;transform:none;object-fit:contain;user-select:none}
.scene-count{flex-shrink:0;color:var(--wood);font-size:12px;letter-spacing:.08em}
.scene-hint{margin:0 18px 14px;color:var(--muted);font-size:12px}
@media(max-width:760px){.scene-tabs{margin-inline:0;gap:22px}.scene-hint{margin-inline:4px}.scene-panel .visual-caption p{font-size:15px}.scene-panel .visual-caption{gap:8px}}
@media(prefers-reduced-motion:reduce){.scene-track{transition:none}}