:root {
  color-scheme: light;
  --ink: #10231f;
  --muted: #60706b;
  --paper: #f3f6f1;
  --white: #ffffff;
  --green: #123f35;
  --green-2: #1c5c4c;
  --green-3: #d9e8df;
  --lime: #b8db42;
  --line: #d8e1db;
  --amber: #e7ad3a;
  --red: #d25a4b;
  --shadow: 0 18px 60px rgba(18, 63, 53, .09);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); min-width: 320px; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration: none; }
.site-header { height: 76px; padding: 0 5vw; display: flex; align-items: center; gap: 34px; background: rgba(255,255,255,.95); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 20; backdrop-filter: blur(14px); }
.brand { display: flex; align-items: center; gap: 10px; margin-right: auto; flex: 0 0 auto; }
.brand-mark { width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center; background: var(--green); color: var(--lime); font: 800 21px/1 Georgia, serif; }
.brand strong, .brand small { display: block; letter-spacing: .08em; }
.brand small { color: var(--muted); font-size: 8px; margin-top: 2px; }
nav { display: flex; align-items: center; gap: 22px; font-size: 14px; }
nav a { padding: 27px 0 24px; border-bottom: 3px solid transparent; white-space: nowrap; }
nav a:hover, nav a.active { color: var(--green-2); border-bottom-color: var(--lime); }
.header-cta, .button { border: 0; cursor: pointer; border-radius: 9px; padding: 11px 16px; background: var(--green); color: white; font-weight: 750; font-size: 14px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; }
.header-cta:hover, .button:hover { background: var(--green-2); }
.header-actions { display: flex; align-items: center; gap: 9px; }
.language-toggle { min-width: 42px; height: 40px; padding: 0 10px; border: 1px solid var(--line); border-radius: 9px; background: white; color: var(--green); font-size: 11px; font-weight: 900; cursor: pointer; }
.language-toggle:hover { border-color: var(--green-2); background: var(--paper); }
.button:disabled { opacity: .55; cursor: wait; }
.button.accent { background: var(--lime); color: var(--ink); }
.button.accent:hover { background: #c8e55d; }
.button.ghost { background: transparent; border: 1px solid rgba(255,255,255,.28); }
.button.secondary { background: var(--white); color: var(--green); border: 1px solid var(--line); }
.button.small { padding: 8px 11px; font-size: 12px; }
.menu-button { display: none; border: 1px solid var(--line); border-radius: 8px; background: white; color: var(--ink); padding: 9px 12px; }
.hero { min-height: 590px; padding: 96px 7vw 70px; position: relative; overflow: hidden; background: var(--green); color: white; }
.hero::after { content: ""; position: absolute; width: 540px; height: 540px; border: 1px solid rgba(184,219,66,.28); border-radius: 50%; right: -80px; top: 16px; box-shadow: 0 0 0 70px rgba(184,219,66,.05), 0 0 0 150px rgba(184,219,66,.035); pointer-events: none; }
.eyebrow { color: var(--lime); font-size: 12px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
h1 { max-width: 870px; margin: 22px 0; font: 500 clamp(44px, 6.3vw, 86px)/1.03 Georgia, "Songti SC", serif; letter-spacing: -.045em; }
.hero > p { max-width: 690px; color: #d4e1dc; font-size: 18px; line-height: 1.8; position: relative; z-index: 2; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; position: relative; z-index: 2; }
.hero-stats { margin-top: 58px; display: flex; gap: 46px; position: relative; z-index: 2; }
.hero-stat strong { display: block; color: var(--lime); font: 500 32px/1 Georgia, serif; }
.hero-stat span { display: block; color: #aebfb9; font-size: 11px; margin-top: 7px; letter-spacing: .08em; }
.section { padding: 72px 7vw 88px; }
.section.white { background: var(--white); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 28px; }
.section-heading h2 { margin: 0; font: 500 clamp(30px, 4vw, 42px)/1.1 Georgia, "Songti SC", serif; }
.section-heading p { margin: 0; color: var(--muted); }
.capability-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.capability-card { min-height: 205px; padding: 25px; background: var(--white); border: 1px solid var(--line); border-radius: 14px; transition: transform .2s, border-color .2s, box-shadow .2s; }
.capability-card:hover { transform: translateY(-3px); border-color: #9ab29f; box-shadow: var(--shadow); }
.capability-card .num { color: var(--green-2); font: 700 12px/1 monospace; }
.capability-card h3 { margin: 36px 0 10px; font-size: 20px; }
.capability-card p { margin: 0; color: var(--muted); line-height: 1.65; }
.flow-strip { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; background: white; }
.flow-step { padding: 22px; min-height: 120px; border-right: 1px solid var(--line); position: relative; }
.flow-step:last-child { border: 0; }
.flow-step::after { content: "→"; position: absolute; right: -12px; top: 46px; z-index: 2; width: 24px; height: 24px; display: grid; place-items: center; background: var(--lime); border-radius: 50%; font-weight: 800; }
.flow-step:last-child::after { display: none; }
.flow-step small { color: var(--green-2); font-weight: 800; }
.flow-step strong { display: block; margin-top: 15px; }
.page-hero { padding: 72px 7vw 58px; background: var(--green); color: white; }
.page-hero h1 { margin: 16px 0 14px; font-size: clamp(39px, 5vw, 64px); }
.page-hero p { max-width: 720px; margin: 0; color: #c9d8d2; line-height: 1.75; font-size: 17px; }
.page-body { padding: 48px 7vw 84px; }
.solution-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.solution-card, .result-card, .panel { background: white; border: 1px solid var(--line); border-radius: 14px; box-shadow: 0 8px 35px rgba(18,63,53,.045); }
.solution-card { padding: 26px; display: flex; flex-direction: column; }
.solution-card .tag, .tag { width: fit-content; border-radius: 999px; padding: 6px 9px; background: #edf4ea; color: var(--green-2); font-size: 11px; font-weight: 800; }
.solution-card h2 { font-size: 21px; margin: 18px 0 9px; }
.solution-card > p { margin: 0 0 20px; color: var(--muted); line-height: 1.65; }
.mini-flow { margin-top: auto; display: flex; flex-wrap: wrap; gap: 6px; }
.mini-flow span { background: var(--paper); border-radius: 7px; padding: 7px 9px; font-size: 11px; }
.risk-list { margin: 20px 0 0; padding: 18px 0 0 18px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; line-height: 1.65; }
.case-search-panel { margin-bottom: 18px; }
.case-search-form { display: grid; grid-template-columns: minmax(280px, 1.5fr) minmax(220px, .8fr) auto; gap: 14px; align-items: end; }
.case-search-form .field { margin: 0; }
.case-search-form .button { min-height: 44px; }
.case-summary { display: flex; align-items: center; flex-wrap: wrap; gap: 9px; min-height: 44px; margin-bottom: 16px; color: var(--muted); font-size: 12px; }
.case-summary strong { color: var(--green); font: 500 30px/1 Georgia, serif; }
.case-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.case-card { min-width: 0; padding: 22px; display: flex; flex-direction: column; background: white; border: 1px solid var(--line); border-radius: 14px; box-shadow: 0 8px 35px rgba(18,63,53,.04); }
.case-card-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; color: var(--muted); font-size: 10px; }
.case-card h2 { margin: 17px 0 9px; font-size: 19px; }
.case-card > p { margin: 0; color: var(--muted); line-height: 1.65; font-size: 12px; }
.case-card-components { display: flex; flex-wrap: wrap; gap: 5px; margin: 18px 0; }
.case-card-components span { max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; padding: 5px 7px; border-radius: 6px; background: var(--paper); color: #40564e; font-size: 9px; }
.case-card-footer { display: grid; grid-template-columns: repeat(3, auto) 1fr; align-items: end; gap: 13px; margin-top: auto; padding-top: 16px; border-top: 1px solid var(--line); }
.case-card-footer > div { display: grid; gap: 3px; }
.case-card-footer strong { font-size: 14px; }
.case-card-footer small { color: var(--muted); font-size: 8px; }
.case-card-footer .button { justify-self: end; }
.case-empty { grid-column: 1 / -1; }
.section-subtle { margin-top: 64px; padding-top: 52px; border-top: 1px solid var(--line); }
.section-subtle .section-heading h2 { font-size: 30px; }
.case-detail { display: grid; gap: 18px; }
.case-back { width: fit-content; color: var(--green-2); font-size: 12px; font-weight: 800; }
.case-detail-hero { display: flex; justify-content: space-between; align-items: center; gap: 30px; padding: 30px; border-radius: 14px; background: var(--green); color: white; }
.case-detail-hero h2 { margin: 17px 0 10px; font: 500 38px/1.1 Georgia, "Songti SC", serif; }
.case-detail-hero p { max-width: 760px; margin: 0; color: #cedbd6; line-height: 1.7; }
.source-language-note { display: block; margin: -3px 0 7px; color: var(--lime); font-size: 9px; font-weight: 800; letter-spacing: .05em; text-transform: uppercase; }
.case-detail-hero .case-card-meta { color: #bed0c9; }
.case-score { min-width: 110px; text-align: center; }
.case-score strong { display: block; color: var(--lime); font: 500 58px/1 Georgia, serif; }
.case-score span { color: #bed0c9; font-size: 11px; }
.case-detail-layout { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(280px, .65fr); gap: 18px; align-items: start; }
.case-detail-layout-interactive { grid-template-columns: minmax(0, 1.55fr) minmax(330px, .75fr); }
.case-diagram-panel { min-width: 0; }
.case-diagram-scroll { overflow-x: auto; border: 1px solid #c5dadd; border-radius: 10px; background-color: #f6faf8; background-image: radial-gradient(#cad9d2 1px, transparent 1px); background-size: 18px 18px; }
.case-diagram { display: block; width: 100%; min-width: 700px; height: auto; }
.case-diagram-lane rect { fill: rgba(218,239,242,.82); stroke: #a8ced4; }
.case-diagram-lane text { fill: #244b50; font: 800 12px system-ui, sans-serif; }
.case-diagram-edge { pointer-events: none; }
.case-diagram-edge path { fill: none; stroke: #71827c; stroke-width: 1.5; vector-effect: non-scaling-stroke; transition: opacity .18s, stroke .18s, stroke-width .18s; }
.case-diagram-edge text { fill: #657770; font: 8px ui-monospace, Consolas, monospace; paint-order: stroke; stroke: #f6faf8; stroke-width: 3px; opacity: .45; transition: opacity .18s, fill .18s; }
.case-diagram-edge.related path { opacity: .72; }
.case-diagram-edge.related text { opacity: .78; }
.case-diagram-edge.active path { stroke: #c14a37; stroke-width: 2.5; opacity: 1; }
.case-diagram-edge.active text { fill: #9b372a; opacity: 1; font-weight: 850; }
.case-diagram marker path { fill: #71827c; }
.case-diagram-node { cursor: pointer; outline: none; }
.case-diagram-node rect { fill: #087f8d; stroke: #076d78; filter: drop-shadow(0 3px 5px rgba(3,79,88,.14)); transition: fill .18s, stroke .18s, filter .18s; }
.case-diagram-node.role-power rect { fill: #7b6b2a; stroke: #66581f; }
.case-diagram-node.role-actuator rect { fill: #27735d; stroke: #1d5c49; }
.case-diagram-node.role-protection rect { fill: #fff1ec; stroke: #bf4a2f; stroke-width: 1.7; }
.case-diagram-node.role-protection .case-node-label, .case-diagram-node.role-protection .case-node-role { fill: #71301f; }
.case-diagram-node.role-support rect { fill: #eef0f7; stroke: #6c7189; }
.case-diagram-node.role-support .case-node-label, .case-diagram-node.role-support .case-node-role { fill: #34394e; }
.case-diagram-node:hover rect, .case-diagram-node:focus rect, .case-diagram-node:focus-visible rect { stroke: #062f34; filter: drop-shadow(0 8px 12px rgba(3,79,88,.24)); }
.case-diagram-node.selected rect { fill: #c84f3d; stroke: #a42e20; filter: drop-shadow(0 8px 12px rgba(89,31,22,.24)); }
.case-diagram-node.selected .case-node-label, .case-diagram-node.selected .case-node-role { fill: white; }
.case-node-label { fill: white; font: 750 11px system-ui, sans-serif; }
.case-node-role { fill: #c8edf0; font: 7px system-ui, sans-serif; }
.case-facts { display: grid; gap: 18px; }
.case-facts h3 { margin: 0 0 10px; font-size: 14px; }
.case-facts h3:not(:first-child) { margin-top: 20px; }
.case-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 0; padding: 0; overflow: hidden; }
.case-metrics .metric { border: 0; border-radius: 0; }
.case-module-inspector { position: sticky; top: 98px; display: grid; gap: 18px; min-width: 0; }
.case-module-panel, .case-summary-panel, .case-module-metrics { border: 1px solid var(--line); border-radius: 10px; background: white; box-shadow: 0 8px 35px rgba(18,63,53,.04); }
.case-module-panel { display: grid; gap: 16px; padding: 22px; }
.case-module-heading { display: grid; gap: 9px; }
.case-module-heading h3 { margin: 0; font-size: 20px; line-height: 1.25; }
.case-module-heading p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.65; }
.case-module-section { display: grid; gap: 9px; padding-top: 14px; border-top: 1px solid var(--line); }
.case-module-section strong, .case-io-grid strong { font-size: 11px; color: var(--green-2); letter-spacing: .04em; text-transform: uppercase; }
.case-module-section ul, .case-io-grid ul { display: grid; gap: 7px; margin: 0; padding-left: 16px; color: #354a42; font-size: 11px; line-height: 1.55; }
.case-part-stack { display: grid; gap: 8px; }
.case-part-stack article { display: grid; gap: 7px; padding: 12px; border: 1px solid var(--line); border-radius: 8px; background: #fbfcfa; }
.case-part-stack article > div { display: flex; justify-content: space-between; gap: 10px; align-items: start; }
.case-part-stack b { color: var(--green); font: 760 12px/1.25 ui-monospace, Consolas, monospace; }
.case-part-stack span { color: #a73e28; font-size: 9px; font-weight: 850; text-align: right; }
.case-part-stack p { margin: 0; color: var(--muted); font-size: 10px; line-height: 1.55; }
.case-io-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.case-io-grid > div { min-width: 0; padding: 13px; border: 1px solid #d9e3de; border-radius: 8px; background: #f8faf8; }
.case-summary-panel { padding: 20px; }
.case-summary-panel h3 { margin: 0 0 10px; font-size: 13px; }
.case-summary-panel h3:not(:first-child) { margin-top: 18px; }
.case-module-metrics { overflow: hidden; }
.case-notes-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.case-notes-grid p { margin: 0; color: var(--muted); line-height: 1.75; font-size: 13px; }
.engineering-checks, .design-workflow { min-width: 0; }
.engineering-check-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.engineering-check-grid article { padding: 16px; border: 1px solid var(--line); border-radius: 9px; background: #fbfcfa; }
.engineering-check-grid span { color: #a73e28; font-size: 11px; font-weight: 900; letter-spacing: .05em; }
.engineering-check-grid p { min-height: 54px; margin: 9px 0; color: #344840; font-size: 11px; line-height: 1.6; }
.engineering-check-grid small { color: var(--muted); font-size: 9px; line-height: 1.5; }
.workflow-track { display: grid; grid-template-columns: repeat(7, minmax(115px, 1fr)); overflow-x: auto; padding: 8px 0 18px; }
.workflow-track article { position: relative; min-height: 126px; padding: 14px 15px; border: 1px solid #bdd1c9; border-right: 0; background: #f6faf8; }
.workflow-track article:first-child { border-radius: 9px 0 0 9px; }
.workflow-track article:last-child { border-right: 1px solid #bdd1c9; border-radius: 0 9px 9px 0; }
.workflow-track article:not(:last-child)::after { content: "→"; position: absolute; z-index: 2; right: -9px; top: 49px; color: var(--green-2); font-weight: 900; }
.workflow-track small, .workflow-track strong, .workflow-track span, .workflow-track em { display: block; }
.workflow-track small { color: var(--green-2); font-size: 8px; }
.workflow-track strong { margin: 13px 0 9px; font-size: 13px; }
.workflow-track span { color: #a73e28; font-size: 9px; }
.workflow-track em { margin-top: 10px; color: var(--muted); font-size: 8px; font-style: normal; }
.workflow-artifacts { display: flex; flex-wrap: wrap; gap: 7px; align-items: center; }
.workflow-artifacts strong { margin-right: 6px; font-size: 11px; }
.workflow-artifacts span { padding: 6px 8px; border-radius: 6px; background: var(--paper); color: #40564e; font-size: 9px; }
.integration-export { display: flex; align-items: center; justify-content: space-between; gap: 22px; margin-top: 18px; padding: 18px; border: 1px solid #b9d1c8; border-radius: 10px; background: linear-gradient(120deg, #f4faf7, #eef7e9); }
.integration-export > div { display: grid; gap: 6px; }
.integration-export strong { color: var(--green); font-size: 13px; }
.integration-export span { color: var(--muted); font-size: 10px; line-height: 1.55; }
.integration-package-result { display: grid; gap: 8px; margin-top: 12px; padding: 16px; border-radius: 9px; background: var(--green); color: white; }
.integration-package-result .tag { width: fit-content; border-color: #6e9588; color: var(--lime); }
.integration-package-result p { margin: 0; color: #c9d9d3; font-size: 10px; line-height: 1.55; }
.integration-package-result a { width: fit-content; color: var(--lime); font-size: 10px; font-weight: 800; }
.warning-panel { border-color: #ebd2a9; background: #fffaf0; }
.case-sources { display: grid; gap: 10px; }
.case-sources h3 { margin-bottom: 4px; }
.case-sources > div { display: flex; justify-content: space-between; gap: 20px; padding: 12px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.case-sources a { color: var(--green-2); font-weight: 800; }
.ownership-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 20px 0; }
.ownership-grid article { display: grid; gap: 8px; padding: 20px; border: 1px solid var(--line); border-radius: 10px; background: #f9fbf8; }
.ownership-grid article:last-child { border-color: #acd0c3; background: #f2f8f5; }
.ownership-grid span { color: #a73e28; font-size: 9px; font-weight: 900; letter-spacing: .1em; }
.ownership-grid strong { font-size: 17px; }
.ownership-grid p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.65; }
.handoff-flow { display: flex; align-items: center; gap: 8px; overflow-x: auto; margin: 18px 0; padding: 15px; border-radius: 9px; background: var(--green); }
.handoff-flow span { flex: 0 0 auto; padding: 8px 10px; border: 1px solid #52796d; border-radius: 6px; color: white; font-size: 9px; font-weight: 750; }
.handoff-flow b { color: var(--lime); }
.tool-layout { display: grid; grid-template-columns: minmax(300px, .75fr) minmax(420px, 1.25fr); gap: 22px; align-items: start; }
.panel { padding: 26px; }
.panel.sticky { position: sticky; top: 98px; }
.panel h2, .panel h3 { margin-top: 0; }
.panel-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 20px; }
.panel-heading h2 { margin: 0; font-size: 20px; }
.field { display: grid; gap: 8px; margin-bottom: 16px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
label { color: #31443e; font-size: 13px; font-weight: 750; }
input, select, textarea { width: 100%; border: 1px solid #cbd7d0; border-radius: 9px; background: #fbfcfa; padding: 12px 13px; color: var(--ink); outline: none; }
input:focus, select:focus, textarea:focus { border-color: var(--green-2); box-shadow: 0 0 0 3px rgba(28,92,76,.1); }
textarea { min-height: 145px; resize: vertical; line-height: 1.5; }
.field-note, .empty-state { color: var(--muted); font-size: 12px; line-height: 1.6; }
.empty-state { min-height: 330px; display: grid; place-items: center; text-align: center; border: 1px dashed #c7d4cc; border-radius: 10px; padding: 30px; background: #fafcf9; }
.empty-state strong { display: block; color: var(--ink); font-size: 17px; margin-bottom: 8px; }
.results-stack { display: grid; gap: 12px; }
.result-card { padding: 20px; box-shadow: none; }
.result-top { display: flex; justify-content: space-between; align-items: start; gap: 14px; }
.part-number { font: 750 18px/1.2 ui-monospace, SFMono-Regular, Consolas, monospace; color: var(--green); }
.manufacturer { color: var(--muted); font-size: 12px; margin-top: 5px; }
.result-card p { color: var(--muted); line-height: 1.6; }
.parameter-list { display: flex; flex-wrap: wrap; gap: 7px; margin: 13px 0; }
.parameter-list span { border: 1px solid var(--line); border-radius: 7px; padding: 6px 8px; font-size: 11px; background: var(--paper); }
.reason { border-left: 3px solid var(--lime); padding-left: 12px; color: #40564e !important; font-size: 13px; }
.risk { border-radius: 999px; padding: 5px 8px; font-size: 10px; font-weight: 850; text-transform: uppercase; }
.risk.low { background: #e3f2e5; color: #27603b; }
.risk.medium { background: #fff0d1; color: #855c0b; }
.risk.high { background: #fbe0dc; color: #993c31; }
.block-diagram { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; padding: 10px 0 24px; }
.diagram-first-look { min-height: 390px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; align-content: center; padding: 24px; border: 1px solid #c8dde0; border-radius: 12px; background: linear-gradient(135deg, #f8fbfa, #eef7f7); }
.first-look-group { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding: 14px; border: 1px solid #b9d7dc; background: #dff1f3; }
.first-look-group small { grid-column: 1 / -1; color: #536b6e; }
.first-look-group strong { padding: 10px; background: #087e8b; color: white; text-align: center; font-size: 12px; }
.first-look-group.core { grid-column: 1 / -1; width: 55%; justify-self: center; border-color: var(--lime); }
.solution-action { margin-top: 20px; align-self: start; }
.diagram-config-panel { margin-bottom: 18px; }
.diagram-config-form { display: grid; grid-template-columns: 1.2fr 1fr 1fr 1.2fr auto; gap: 12px; align-items: end; }
.diagram-config-form .field { margin: 0; }
.diagram-config-form .button { min-height: 44px; }
.diagram-product-panel { padding: 22px; overflow: hidden; }
.diagram-loading { display: grid; gap: 18px; min-height: 560px; align-content: center; padding: 15%; }
.interactive-diagram { border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: #f8faf8; }
.diagram-toolbar { min-height: 64px; display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 12px 16px; background: #fff; border-bottom: 1px solid var(--line); }
.diagram-toolbar > div:first-child { display: grid; gap: 4px; }
.diagram-toolbar > div:first-child span { color: var(--muted); font-size: 11px; }
.diagram-tools { display: flex; align-items: center; gap: 6px; }
.diagram-tools button { min-width: 34px; height: 32px; border: 1px solid var(--line); border-radius: 7px; background: #fff; color: var(--ink); cursor: pointer; }
.diagram-tools button:hover { border-color: var(--green-2); color: var(--green-2); }
.diagram-scale { width: 42px; text-align: right; color: var(--muted); font: 11px/1 ui-monospace, Consolas, monospace; }
.diagram-shell { display: grid; grid-template-columns: minmax(0, 1fr) 340px; min-height: 680px; }
.diagram-viewport { height: 680px; overflow: auto; cursor: grab; background-color: #f5f8f6; background-image: radial-gradient(#cbd9d2 1px, transparent 1px); background-size: 20px 20px; outline: none; touch-action: none; }
.diagram-viewport:focus-visible { box-shadow: inset 0 0 0 3px rgba(28,92,76,.2); }
.diagram-viewport.dragging { cursor: grabbing; user-select: none; }
.diagram-stage { min-width: 100%; min-height: 100%; display: inline-block; }
.diagram-canvas { display: block; max-width: none; overflow: visible; transform: translateZ(0); transform-origin: top left; }
.diagram-group { pointer-events: none; }
.diagram-group rect { fill: rgba(218, 239, 242, .9); stroke: #a8ced4; stroke-width: 1; filter: drop-shadow(0 2px 2px rgba(41,123,132,.05)); }
.diagram-group-label { fill: #244b50; font: 750 13px/1.2 system-ui, sans-serif; }
.diagram-group-subtitle { fill: #71898b; font: 750 9px/1.2 ui-monospace, Consolas, monospace; letter-spacing: .08em; }
.diagram-edges-layer { pointer-events: none; }
.diagram-edge path { fill: none; stroke: #6f817b; stroke-width: 1.5; vector-effect: non-scaling-stroke; transition: stroke .2s, stroke-width .2s, opacity .2s; }
.diagram-edge text { fill: #6a7b75; font: 9px/1 ui-monospace, Consolas, monospace; paint-order: stroke; stroke: #f5f8f6; stroke-width: 3px; stroke-linejoin: round; opacity: .42; pointer-events: none; }
.diagram-edge marker path, .diagram-canvas marker path { fill: #6f817b; stroke: none; }
.diagram-edge.related path { opacity: .55; }
.diagram-edge.active path { stroke: #c14a37; stroke-width: 2.6; }
.diagram-edge.active text { fill: #9b372a; opacity: 1; font-weight: 800; }
.diagram-node { cursor: pointer; outline: none; }
.diagram-node-box { fill: #078392; stroke: #087986; stroke-width: 1; filter: drop-shadow(0 3px 5px rgba(3,79,88,.16)); transition: fill .16s, stroke .16s, filter .16s; }
.diagram-node-label { fill: white; font: 750 11px/1.18 system-ui, sans-serif; pointer-events: none; }
.diagram-node-count { fill: #c5f0f4; font: 650 7px/1 system-ui, sans-serif; pointer-events: none; }
.diagram-node:hover .diagram-node-box, .diagram-node:focus .diagram-node-box, .diagram-node:focus-visible .diagram-node-box { fill: #056d79; stroke: #045c66; filter: drop-shadow(0 8px 12px rgba(3,79,88,.26)); }
.diagram-node.selected .diagram-node-box { fill: #c84f3d; stroke: #a42e20; filter: drop-shadow(0 8px 12px rgba(89,31,22,.24)); }
.diagram-node.selected .diagram-node-count { fill: #ffe5e0; }
.diagram-inspector { height: 680px; overflow-y: auto; background: white; border-left: 1px solid var(--line); }
.inspector-heading { padding: 22px 20px 16px; }
.inspector-heading h3 { margin: 14px 0 8px; font-size: 22px; }
.inspector-heading p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.65; }
.inspector-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.inspector-tabs { display: grid; grid-template-columns: 1fr 1fr; padding: 0 14px; gap: 5px; }
.inspector-tabs button { display: flex; justify-content: space-between; gap: 6px; padding: 9px 10px; border: 1px solid var(--line); border-radius: 7px; background: #f8faf8; color: var(--muted); font-size: 11px; cursor: pointer; }
.inspector-tabs button span { min-width: 18px; border-radius: 99px; background: #e3ebe6; color: var(--ink); text-align: center; }
.inspector-tabs button.active { border-color: var(--green); background: var(--green); color: white; }
.inspector-tabs button.active span { background: var(--lime); color: var(--ink); }
.inspector-body { display: grid; gap: 10px; padding: 16px 14px; }
.inspector-product, .inspector-resource, .inspector-empty { padding: 14px; border: 1px solid var(--line); border-radius: 9px; background: #fbfcfa; }
.inspector-product > div:first-child { display: grid; gap: 3px; padding-right: 50px; }
.inspector-product > div:first-child strong { font: 750 13px/1.2 ui-monospace, Consolas, monospace; color: var(--green); }
.inspector-product > div:first-child span { color: var(--muted); font-size: 10px; }
.inspector-product > .risk { float: right; margin-top: -33px; }
.inspector-product p, .inspector-resource p, .inspector-empty p { color: var(--muted); font-size: 11px; line-height: 1.6; }
.inspector-product .parameter-list { gap: 4px; }
.inspector-product .parameter-list span { padding: 4px 6px; font-size: 9px; }
.product-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; padding-top: 10px; border-top: 1px solid var(--line); }
.product-actions a, .product-actions button { border: 0; background: transparent; color: var(--green-2); padding: 0; font-size: 10px; font-weight: 800; cursor: pointer; }
.product-actions a:hover, .product-actions button:hover { color: var(--green); text-decoration: underline; }
.inspector-resource { display: grid; gap: 7px; }
.inspector-resource > span { color: var(--green-2); font-size: 9px; font-weight: 850; letter-spacing: .08em; }
.inspector-resource > strong { font-size: 13px; }
.inspector-resource p { margin: 0; }
.inspector-resource a { color: var(--green-2); font-size: 11px; font-weight: 800; }
.inspector-empty { min-height: 130px; display: grid; place-content: center; text-align: center; }
.inspector-empty p { max-width: 230px; }
.inspector-signals { padding: 4px 18px 22px; }
.inspector-signals > strong { font-size: 11px; }
.diagram-source { padding: 14px 16px; background: white; border-top: 1px solid var(--line); }
.diagram-source summary { cursor: pointer; color: var(--muted); font-size: 12px; font-weight: 750; }
.diagram-source .code-block { margin-top: 14px; }
.block { background: var(--green); color: white; border-radius: 9px; padding: 14px 16px; font-size: 13px; font-weight: 700; text-align: center; }
.arrow { color: var(--green-2); font-weight: 900; }
.code-block { position: relative; background: #0c2721; color: #d8e7e0; border-radius: 10px; padding: 18px; overflow: auto; font: 12px/1.65 ui-monospace, SFMono-Regular, Consolas, monospace; white-space: pre; }
.code-block .copy { position: sticky; float: right; top: 0; border: 1px solid #43665c; border-radius: 6px; background: #173b32; color: white; padding: 5px 8px; cursor: pointer; }
.notice { margin-top: 16px; border-radius: 9px; padding: 13px 14px; background: #f4f8e8; border: 1px solid #dce8af; color: #4c5d20; font-size: 12px; line-height: 1.6; }
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 16px; }
.metric { padding: 16px; border: 1px solid var(--line); border-radius: 10px; background: var(--white); }
.metric strong { display: block; font: 500 25px/1 Georgia, serif; }
.metric span { display: block; margin-top: 7px; color: var(--muted); font-size: 10px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 12px; }
th, td { text-align: left; padding: 12px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }
.confidence { font: 600 16px/1 Georgia, serif; color: var(--green-2); }
.docs-layout { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 30px; }
.docs-nav { position: sticky; top: 100px; display: grid; gap: 5px; align-self: start; }
.docs-nav a { padding: 9px 12px; border-left: 2px solid var(--line); color: var(--muted); font-size: 13px; }
.docs-nav a:hover { border-color: var(--lime); color: var(--ink); }
.docs-content { min-width: 0; }
.docs-section { margin-bottom: 42px; scroll-margin-top: 100px; }
.docs-section h2 { font: 500 30px/1.2 Georgia, "Songti SC", serif; }
.endpoint { display: grid; grid-template-columns: 70px minmax(160px, 250px) 1fr; gap: 12px; padding: 13px 0; border-bottom: 1px solid var(--line); align-items: center; font-size: 13px; }
.method { width: fit-content; color: var(--green-2); font-size: 10px; font-weight: 900; }
.endpoint code { font-family: ui-monospace, Consolas, monospace; }
.endpoint span:last-child { color: var(--muted); }
.loading { height: 10px; border-radius: 99px; background: linear-gradient(90deg, #edf2ee, #dce7df, #edf2ee); background-size: 200% 100%; animation: shimmer 1.2s infinite; }
.loading-short { width: 70%; }
.loading-gap-lg { margin-top: 30px; }
.loading-gap-sm { margin-top: 15px; }
.toast { position: fixed; right: 24px; bottom: 24px; z-index: 50; background: var(--ink); color: white; padding: 11px 15px; border-radius: 8px; font-size: 12px; opacity: 0; transform: translateY(10px); pointer-events: none; transition: .2s; }
.toast.visible { opacity: 1; transform: translateY(0); }
footer { padding: 24px 5vw; display: flex; justify-content: space-between; color: var(--muted); background: white; border-top: 1px solid var(--line); font-size: 12px; }
@keyframes shimmer { to { background-position: -200% 0; } }
@media (max-width: 1100px) { nav { gap: 14px; } .solution-grid, .case-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 1180px) {
  .page-body { padding-left: 4vw; padding-right: 4vw; }
  .case-detail-layout { grid-template-columns: 1fr; }
  .case-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
  .case-module-inspector { position: static; grid-template-columns: 1fr 1fr; }
  .case-module-panel { grid-column: 1 / -1; }
  .diagram-shell { grid-template-columns: 1fr; }
  .diagram-inspector { height: auto; max-height: 560px; border-left: 0; border-top: 1px solid var(--line); }
}
@media (max-width: 960px) {
  .site-header { gap: 14px; }
  .site-header nav { display: none; position: absolute; left: 0; right: 0; top: 75px; padding: 10px 5vw 20px; background: white; border-bottom: 1px solid var(--line); box-shadow: var(--shadow); }
  .site-header nav.open { display: grid; grid-template-columns: repeat(3, 1fr); }
  nav a { padding: 12px; border: 0; background: var(--paper); border-radius: 8px; }
  .menu-button { display: block; }
  .capability-grid { grid-template-columns: 1fr 1fr; }
  .tool-layout { grid-template-columns: 1fr; }
  .panel.sticky { position: static; }
  .docs-layout { grid-template-columns: 1fr; }
  .docs-nav { position: static; grid-template-columns: repeat(4, 1fr); }
  .diagram-config-form { grid-template-columns: 1fr 1fr; }
  .case-search-form { grid-template-columns: 1fr 1fr; }
  .case-search-form .button { grid-column: 1 / -1; }
  .case-detail-layout { grid-template-columns: 1fr; }
  .case-notes-grid { grid-template-columns: 1fr; }
  .engineering-check-grid { grid-template-columns: 1fr 1fr; }
  .diagram-config-form .button { align-self: end; }
  .diagram-shell { grid-template-columns: 1fr; }
  .diagram-inspector { height: auto; max-height: 560px; border-left: 0; border-top: 1px solid var(--line); }
}
@media (max-width: 680px) {
  .ownership-grid { grid-template-columns: 1fr; }
  .integration-export { align-items: stretch; flex-direction: column; }
  .site-header { padding: 0 20px; }
  .brand small { display: none; }
  .header-cta { display: none; }
  .site-header nav.open { grid-template-columns: 1fr 1fr; padding: 10px 20px 20px; }
  .hero { padding: 70px 24px 56px; min-height: 560px; }
  .hero-stats { gap: 20px; flex-wrap: wrap; }
  .hero-stat { width: 40%; }
  .section, .page-body { padding: 52px 24px; }
  .page-hero { padding: 56px 24px 44px; }
  .section-heading { align-items: start; flex-direction: column; gap: 10px; }
  .capability-grid, .solution-grid, .flow-strip { grid-template-columns: 1fr; }
  .flow-step { border-right: 0; border-bottom: 1px solid var(--line); }
  .flow-step::after { right: 50%; top: auto; bottom: -12px; transform: rotate(90deg); }
  .field-row { grid-template-columns: 1fr; }
  .panel { padding: 20px; }
  .metrics { grid-template-columns: 1fr 1fr; }
  .docs-nav { grid-template-columns: 1fr 1fr; }
  .endpoint { grid-template-columns: 55px 1fr; }
  .endpoint span:last-child { grid-column: 2; }
  .diagram-config-form { grid-template-columns: 1fr; }
  .case-grid, .case-search-form { grid-template-columns: 1fr; }
  .engineering-check-grid { grid-template-columns: 1fr; }
  .case-search-form .button { grid-column: auto; }
  .case-detail-hero { align-items: start; flex-direction: column; padding: 24px; }
  .case-facts { grid-template-columns: 1fr; }
  .case-module-inspector { grid-template-columns: 1fr; }
  .case-module-panel { grid-column: auto; }
  .case-io-grid { grid-template-columns: 1fr; }
  .case-part-stack article > div { display: grid; }
  .case-part-stack span { text-align: left; }
  .case-detail-hero h2 { font-size: 30px; }
  .case-score { text-align: left; }
  .case-card-footer { grid-template-columns: repeat(3, 1fr); }
  .case-card-footer .button { grid-column: 1 / -1; justify-self: stretch; }
  .case-sources > div { flex-direction: column; gap: 6px; }
  .diagram-product-panel { padding: 12px; }
  .diagram-toolbar { align-items: start; flex-direction: column; }
  .diagram-viewport { height: 520px; }
  footer { gap: 12px; flex-direction: column; }
}