:root {
    --ink: #111920;
    --ink-2: #22313b;
    --blue: #0a63dc;
    --blue-dark: #084da8;
    --green: #079667;
    --green-bright: #1fc58b;
    --orange: #e56c2e;
    --paper: #fff;
    --soft: #f3f6f7;
    --blue-soft: #eaf2fc;
    --line: #dce3e7;
    --muted: #61707a;
    --shell: 1220px;
    --shadow: 0 22px 55px rgba(17,25,32,.13);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body { overflow-x: hidden; background: var(--paper); color: var(--ink); font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif; line-height: 1.65; letter-spacing: 0; -webkit-font-smoothing: antialiased; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button { border: 0; background: none; color: inherit; font: inherit; cursor: pointer; }
img { display: block; max-width: 100%; }
ul, ol { list-style: none; }
svg { width: 1em; height: 1em; stroke-width: 1.8; }
.shell { width: min(calc(100% - 48px), var(--shell)); margin: 0 auto; }
.eyebrow { display: flex; align-items: center; gap: 10px; color: var(--blue); font-size: 11px; font-weight: 800; }
.eyebrow::before { width: 28px; height: 3px; background: currentColor; content: ""; }
.eyebrow.light { color: #5be0b2; }
.section { padding: 96px 0; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 48px; margin-bottom: 42px; }
.section-head > div { max-width: 710px; }
.section-head h2, .section-title h2 { margin-top: 13px; font-size: 36px; line-height: 1.28; }
.section-head > p { max-width: 430px; color: var(--muted); font-size: 13px; }
.section-title { max-width: 760px; margin-bottom: 42px; }
.section-title > p:last-child { margin-top: 13px; color: var(--muted); font-size: 14px; }
.button { display: inline-flex; min-height: 46px; align-items: center; justify-content: center; gap: 8px; padding: 0 19px; border-radius: 6px; font-size: 13px; font-weight: 750; transition: transform .18s ease, background .18s ease, border-color .18s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--blue); color: #fff; }
.button-primary:hover { background: var(--blue-dark); }
.button-dark { background: var(--ink); color: #fff; }
.button-light { border: 1px solid #aebac2; background: rgba(255,255,255,.92); color: var(--ink); }
.button-ghost { border: 1px solid rgba(255,255,255,.35); color: #fff; }
.text-link { display: inline-flex; align-items: center; gap: 7px; color: var(--blue); font-size: 12px; font-weight: 750; }

.site-header { position: sticky; z-index: 100; top: 0; height: 72px; border-bottom: 1px solid transparent; background: rgba(255,255,255,.97); transition: border-color .18s ease, box-shadow .18s ease; }
.site-header.scrolled { border-color: var(--line); box-shadow: 0 8px 28px rgba(17,25,32,.08); }
.nav-shell { display: flex; height: 100%; align-items: center; gap: 28px; }
.brand { display: inline-flex; flex: 0 0 auto; align-items: center; gap: 11px; }
.brand img { width: 42px; height: 42px; }
.brand-copy { display: flex; flex-direction: column; line-height: 1.18; }
.brand-copy strong { font-size: 17px; }
.brand-copy small { margin-top: 4px; color: var(--muted); font-size: 9px; }
.main-nav { display: flex; align-items: center; gap: 25px; margin-left: auto; }
.main-nav > a, .nav-parent { display: inline-flex; min-height: 72px; align-items: center; gap: 5px; color: var(--ink-2); font-size: 13px; font-weight: 650; }
.main-nav > a:hover, .nav-parent:hover, .main-nav .active { color: var(--blue); }
.nav-dropdown { position: relative; }
.nav-parent svg { font-size: 13px; }
.dropdown-menu { position: absolute; top: 62px; left: 50%; width: 320px; padding: 10px; border: 1px solid var(--line); border-radius: 7px; background: #fff; box-shadow: var(--shadow); opacity: 0; visibility: hidden; transform: translate(-50%, 8px); transition: opacity .18s ease, transform .18s ease, visibility .18s ease; }
.nav-dropdown:hover .dropdown-menu, .nav-dropdown:focus-within .dropdown-menu { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.dropdown-menu a { display: grid; grid-template-columns: 34px 1fr; gap: 10px; padding: 10px; border-radius: 5px; }
.dropdown-menu a:hover { background: var(--soft); }
.dropdown-menu a > svg { margin-top: 3px; color: var(--blue); font-size: 18px; }
.dropdown-menu a:nth-child(3) > svg { color: var(--orange); }
.dropdown-menu a:nth-child(4) > svg { color: var(--green); }
.dropdown-menu span { display: flex; flex-direction: column; }
.dropdown-menu strong { font-size: 12px; }
.dropdown-menu small { color: var(--muted); font-size: 9px; font-weight: 400; }
.header-cta { min-height: 41px; padding: 0 15px; }
.menu-toggle { display: none; width: 42px; height: 42px; align-items: center; justify-content: center; font-size: 24px; }

.home-hero { position: relative; min-height: 650px; height: calc(100svh - 110px); max-height: 760px; overflow: hidden; border-bottom: 1px solid var(--line); background: #f1f4f3; }
.home-hero::before { position: absolute; inset: 0 0 0 auto; width: 42%; border-left: 1px solid #ccd8d9; background: #dde6e4; content: ""; }
.home-hero::after { position: absolute; top: 0; right: 0; width: 42%; height: 7px; background: var(--green); content: ""; }
.home-hero-layout { position: relative; z-index: 2; display: grid; height: 100%; grid-template-columns: minmax(410px,.82fr) minmax(0,1.18fr); gap: 58px; align-items: center; }
.home-hero-copy { min-width: 0; }
.home-hero h1 { margin-top: 18px; font-size: 48px; line-height: 1.17; }
.home-hero .lead { margin-top: 20px; color: var(--blue); font-size: 26px; font-weight: 800; }
.home-hero .desc { max-width: 500px; margin-top: 12px; color: var(--ink-2); font-size: 14px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 11px; margin-top: 28px; }
.hero-points { display: flex; gap: 20px; margin-top: 26px; }
.hero-points li { display: flex; align-items: center; gap: 6px; color: var(--ink-2); font-size: 11px; font-weight: 650; }
.hero-points svg { color: var(--green); font-size: 16px; }
.home-system-collage { position: relative; min-width: 0; height: 510px; }
.system-shot { position: absolute; overflow: hidden; border: 1px solid #bcc7cc; border-radius: 6px; background: #fff; box-shadow: 0 24px 56px rgba(17,25,32,.17); }
.system-shot-primary { z-index: 2; top: 22px; right: 0; width: 96%; }
.system-shot-secondary { z-index: 3; right: 12px; bottom: 10px; width: 58%; border-color: #1e2930; box-shadow: 0 22px 48px rgba(17,25,32,.25); }
.shot-bar { display: grid; height: 36px; grid-template-columns: 58px 1fr auto; align-items: center; gap: 8px; padding: 0 12px; border-bottom: 1px solid var(--line); background: #fff; }
.system-shot-secondary .shot-bar { height: 34px; background: var(--ink); color: #fff; }
.shot-bar strong { overflow: hidden; font-size: 9px; text-align: center; text-overflow: ellipsis; white-space: nowrap; }
.shot-bar em { color: var(--muted); font-size: 7px; font-style: normal; font-weight: 700; }
.system-shot-secondary .shot-bar em { color: rgba(255,255,255,.55); }
.shot-dots { display: flex; gap: 5px; }
.shot-dots i { width: 7px; height: 7px; border-radius: 50%; background: #cfd7da; }
.shot-dots i:first-child { background: var(--orange); }
.shot-dots i:last-child { background: var(--green); }
.shot-viewport { overflow: hidden; background: #eef2f4; }
.shot-viewport-wide { aspect-ratio: 1600 / 607; }
.shot-viewport-standard { aspect-ratio: 16 / 9; }
.shot-viewport img { width: 100%; height: 100%; object-fit: contain; object-position: center; }
.collage-note { position: absolute; z-index: 4; left: 0; bottom: 26px; display: flex; width: 37%; min-height: 112px; justify-content: center; flex-direction: column; padding: 18px 20px; border-left: 5px solid var(--green); border-radius: 0 5px 5px 0; background: var(--ink); color: #fff; box-shadow: 0 18px 38px rgba(17,25,32,.22); }
.collage-note span { display: flex; align-items: center; gap: 6px; color: #5be0b2; font-size: 8px; font-weight: 800; }
.collage-note strong { margin-top: 8px; font-size: 13px; }
.collage-note small { margin-top: 3px; color: rgba(255,255,255,.56); font-size: 7px; }
.home-proof { background: var(--ink); color: #fff; }
.proof-row { display: grid; grid-template-columns: repeat(4,1fr); }
.proof-row div { display: flex; min-height: 102px; flex-direction: column; justify-content: center; padding: 0 24px; border-left: 1px solid rgba(255,255,255,.13); }
.proof-row div:last-child { border-right: 1px solid rgba(255,255,255,.13); }
.proof-row strong { font-size: 17px; }
.proof-row span { margin-top: 2px; color: rgba(255,255,255,.58); font-size: 10px; }

.product-portal { background: #fff; }
.product-gateway { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 15px; }
.product-entry { position: relative; display: grid; min-height: 335px; grid-template-columns: 1fr 52px; padding: 30px; overflow: hidden; border: 1px solid var(--line); border-radius: 7px; background: #fff; transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease; }
.product-entry:hover { transform: translateY(-3px); border-color: #b9c6cd; box-shadow: 0 15px 38px rgba(17,25,32,.09); }
.product-entry .entry-icon { display: grid; width: 42px; height: 42px; place-items: center; border-radius: 6px; background: var(--blue-soft); color: var(--blue); font-size: 21px; }
.product-entry.orange .entry-icon { background: #fff0e8; color: var(--orange); }
.product-entry.green .entry-icon { background: #e8f6f1; color: var(--green); }
.product-entry h3 { margin-top: 20px; font-size: 21px; }
.product-entry p { max-width: 440px; margin-top: 9px; color: var(--muted); font-size: 12px; }
.entry-features { display: flex; flex-wrap: wrap; gap: 7px 16px; margin-top: 18px; }
.entry-features li { position: relative; padding-left: 11px; color: var(--ink-2); font-size: 9px; font-weight: 700; }
.entry-features li::before { position: absolute; top: .55em; left: 0; width: 4px; height: 4px; border-radius: 50%; background: var(--green); content: ""; }
.product-entry.orange .entry-features li::before { background: var(--orange); }
.entry-fit { display: block; margin-top: 18px; padding-top: 13px; border-top: 1px solid var(--line); color: var(--muted); font-size: 9px; }
.product-entry .entry-arrow { display: grid; width: 44px; height: 44px; place-items: center; align-self: end; border: 1px solid var(--line); border-radius: 50%; color: var(--blue); font-size: 18px; }
.product-entry .product-no { position: absolute; top: 26px; right: 30px; color: #a9b4ba; font-size: 10px; font-weight: 800; }

.home-cases { background: var(--soft); }
.case-split { display: grid; min-height: 430px; grid-template-columns: 1fr 1fr; overflow: hidden; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.case-shot { position: relative; min-width: 0; overflow: hidden; }
.case-shot img { width: 100%; height: 100%; object-fit: cover; object-position: top left; }
.case-shot figcaption { position: absolute; left: 16px; bottom: 16px; padding: 8px 11px; border-radius: 5px; background: rgba(17,25,32,.88); color: #fff; font-size: 9px; }
.case-copy { display: flex; flex-direction: column; justify-content: center; padding: 48px; }
.case-copy h3 { margin-top: 13px; font-size: 27px; line-height: 1.35; }
.case-copy > p { margin-top: 13px; color: var(--muted); font-size: 13px; }
.case-facts { display: grid; grid-template-columns: repeat(2,1fr); gap: 10px; margin-top: 25px; }
.case-facts span { padding: 11px; border: 1px solid var(--line); border-radius: 5px; color: var(--ink-2); font-size: 10px; }
.case-copy .text-link { margin-top: 25px; }
.miniapp-strip { display: grid; grid-template-columns: repeat(7,1fr); gap: 9px; margin-top: 16px; }
.miniapp-strip a { overflow: hidden; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
.miniapp-strip img { width: 100%; aspect-ratio: 1; object-fit: contain; padding: 5px; }
.miniapp-strip span { display: block; min-height: 34px; padding: 7px 5px; border-top: 1px solid var(--line); color: var(--muted); font-size: 8px; text-align: center; }

.home-summary { background: #fff; }
.summary-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 70px; align-items: center; }
.summary-copy h2 { margin-top: 13px; font-size: 34px; line-height: 1.3; }
.summary-copy > p { margin-top: 15px; color: var(--muted); font-size: 14px; }
.service-list { display: grid; grid-template-columns: repeat(2,1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.service-list div { min-height: 120px; padding: 20px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.service-list svg { color: var(--green); font-size: 21px; }
.service-list strong { display: block; margin-top: 15px; font-size: 13px; }
.service-list span { display: block; margin-top: 3px; color: var(--muted); font-size: 9px; }

.page-banner { padding: 74px 0 68px; border-bottom: 1px solid var(--line); background: var(--soft); }
.breadcrumb { display: flex; align-items: center; gap: 7px; color: var(--muted); font-size: 10px; }
.breadcrumb a:hover { color: var(--blue); }
.page-banner h1 { margin-top: 20px; font-size: 44px; line-height: 1.2; }
.page-banner > .shell > p { max-width: 720px; margin-top: 13px; color: var(--muted); font-size: 15px; }
.products-overview { background: #fff; }
.product-directory { display: grid; grid-template-columns: repeat(2,1fr); gap: 17px; }
.directory-item { display: grid; min-height: 450px; grid-template-columns: 1fr 225px; overflow: hidden; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.directory-copy { padding: 34px; }
.directory-copy > svg { color: var(--blue); font-size: 28px; }
.directory-item.orange .directory-copy > svg { color: var(--orange); }
.directory-item.green .directory-copy > svg { color: var(--green); }
.directory-copy h2 { margin-top: 22px; font-size: 22px; }
.directory-copy p { margin-top: 9px; color: var(--muted); font-size: 11px; }
.directory-points { display: grid; gap: 7px; margin-top: 18px; }
.directory-points li { position: relative; padding-left: 13px; color: var(--ink-2); font-size: 9px; }
.directory-points li::before { position: absolute; top: .55em; left: 0; width: 5px; height: 2px; background: var(--green); content: ""; }
.directory-item.orange .directory-points li::before { background: var(--orange); }
.directory-fit { display: block; margin-top: 17px; padding-top: 13px; border-top: 1px solid var(--line); color: var(--muted); font-size: 8px; line-height: 1.65; }
.directory-copy .text-link { margin-top: 20px; }
.directory-visual { position: relative; overflow: hidden; background: #edf2f5; }
.directory-visual img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.extension-band { background: var(--ink); color: #fff; }
.extension-grid { display: grid; grid-template-columns: repeat(4,1fr); }
.extension-grid div { min-height: 200px; padding: 28px; border-left: 1px solid rgba(255,255,255,.14); }
.extension-grid div:last-child { border-right: 1px solid rgba(255,255,255,.14); }
.extension-grid svg { color: #5be0b2; font-size: 24px; }
.extension-grid strong { display: block; margin-top: 38px; font-size: 15px; }
.extension-grid p { margin-top: 7px; color: rgba(255,255,255,.55); font-size: 10px; }

.product-hero { position: relative; min-height: 610px; overflow: hidden; border-bottom: 1px solid var(--line); background: #f3f6f5; }
.product-hero-layout { display: grid; min-height: 610px; grid-template-columns: minmax(400px,.9fr) minmax(0,1.1fr); gap: 58px; align-items: center; }
.product-hero-copy { max-width: 560px; }
.product-hero-copy .breadcrumb { margin-bottom: 22px; }
.product-hero-copy h1 { margin-top: 14px; font-size: 43px; line-height: 1.25; }
.product-hero-copy .product-slogan { margin-top: 16px; color: var(--blue); font-size: 22px; font-weight: 800; }
.product-hero-copy > p:not(.eyebrow):not(.product-slogan) { max-width: 520px; margin-top: 12px; color: var(--ink-2); font-size: 14px; }
.product-hero-scene { height: 480px; overflow: hidden; border-radius: 6px; background: #dde4e2; box-shadow: 0 24px 58px rgba(17,25,32,.15); }
.product-hero-scene img { width: 100%; height: 100%; object-fit: cover; object-position: center; }

.outcome-band { background: var(--ink); color: #fff; }
.outcome-grid { display: grid; grid-template-columns: repeat(3,1fr); }
.outcome-grid div { min-height: 160px; padding: 27px; border-left: 1px solid rgba(255,255,255,.14); }
.outcome-grid div:last-child { border-right: 1px solid rgba(255,255,255,.14); }
.outcome-grid span { color: #5be0b2; font-size: 10px; font-weight: 800; }
.outcome-grid strong { display: block; margin-top: 20px; font-size: 17px; }
.outcome-grid p { margin-top: 5px; color: rgba(255,255,255,.55); font-size: 10px; }
.product-description { background: #fff; }
.product-description-layout { display: grid; grid-template-columns: minmax(0,.9fr) minmax(0,1.1fr); gap: 76px; align-items: start; }
.product-description-main h2 { margin-top: 14px; font-size: 33px; line-height: 1.32; }
.product-description-main > p:not(.eyebrow) { margin-top: 14px; color: var(--ink-2); font-size: 12px; line-height: 1.9; }
.product-facts { border-top: 1px solid #cfd9de; }
.product-facts > div { display: grid; min-height: 104px; grid-template-columns: 112px 1fr; gap: 22px; align-items: center; padding: 18px 0; border-bottom: 1px solid #cfd9de; }
.product-facts dt { color: var(--blue); font-size: 11px; font-weight: 800; }
.product-facts dd { color: var(--ink-2); font-size: 10px; line-height: 1.75; }
.capability-section { background: #fff; }
.capability-grid { display: grid; grid-template-columns: repeat(3,1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.capability-item { min-height: 225px; padding: 28px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.capability-item .cap-index { color: #a8b3b9; font-size: 9px; font-weight: 800; }
.capability-item > svg { display: block; margin-top: 34px; color: var(--blue); font-size: 25px; }
.capability-item h3 { margin-top: 17px; font-size: 16px; }
.capability-item p { margin-top: 7px; color: var(--muted); font-size: 10px; }
.workflow-section { background: var(--soft); }
.workflow-layout { display: grid; grid-template-columns: 340px 1fr; gap: 76px; }
.workflow-copy h2 { margin-top: 13px; font-size: 33px; line-height: 1.3; }
.workflow-copy > p { margin-top: 13px; color: var(--muted); font-size: 12px; }
.workflow-list { border-top: 1px solid #cfd9de; }
.workflow-list li { display: grid; grid-template-columns: 44px 1fr; gap: 17px; padding: 21px 0; border-bottom: 1px solid #cfd9de; }
.workflow-list b { color: var(--blue); font-size: 12px; }
.workflow-list strong { font-size: 14px; }
.workflow-list p { margin-top: 3px; color: var(--muted); font-size: 10px; }
.evidence-section { background: #fff; }
.screen-showcase { display: grid; grid-template-columns: 1.2fr .8fr; min-height: 450px; overflow: hidden; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.screen-main { position: relative; min-width: 0; overflow: hidden; background: #e8edef; }
.screen-main img { width: 100%; height: 100%; object-fit: cover; object-position: top left; }
.screen-main figcaption { position: absolute; left: 15px; bottom: 15px; padding: 8px 11px; border-radius: 5px; background: rgba(17,25,32,.88); color: #fff; font-size: 9px; }
.screen-info { display: flex; flex-direction: column; justify-content: center; padding: 42px; border-left: 1px solid var(--line); }
.screen-info h3 { margin-top: 12px; font-size: 24px; line-height: 1.35; }
.screen-info > p { margin-top: 12px; color: var(--muted); font-size: 12px; }
.screen-info ul { display: grid; gap: 9px; margin-top: 21px; }
.screen-info li { display: flex; align-items: center; gap: 7px; color: var(--ink-2); font-size: 10px; }
.screen-info li svg { color: var(--green); }
.screen-info .button { align-self: flex-start; margin-top: 25px; }
.qr-cases { display: grid; grid-template-columns: repeat(5,1fr); gap: 11px; margin-top: 15px; }
.qr-cases figure { overflow: hidden; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
.qr-cases img { width: 100%; aspect-ratio: 1; object-fit: contain; padding: 7px; }
.qr-cases figcaption { padding: 8px; border-top: 1px solid var(--line); color: var(--muted); font-size: 8px; text-align: center; }
.deployment-section { background: var(--blue-soft); }
.deployment-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: start; }
.deployment-copy h2 { margin-top: 13px; font-size: 33px; }
.deployment-copy > p { margin-top: 12px; color: var(--muted); font-size: 12px; }
.deploy-options { display: grid; gap: 11px; }
.deploy-options div { display: grid; grid-template-columns: 42px 1fr; gap: 13px; padding: 17px; border: 1px solid #cbd9e8; border-radius: 6px; background: rgba(255,255,255,.62); }
.deploy-options svg { color: var(--blue); font-size: 21px; }
.deploy-options strong { font-size: 13px; }
.deploy-options p { margin-top: 3px; color: var(--muted); font-size: 9px; }
.related-section { background: #fff; }
.related-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 13px; }
.related-product { display: grid; min-height: 150px; grid-template-columns: 1fr 32px; padding: 23px; border: 1px solid var(--line); border-radius: 6px; }
.related-product:hover { border-color: #b9c6cd; }
.related-product span { color: var(--blue); font-size: 9px; font-weight: 800; }
.related-product strong { display: block; margin-top: 13px; font-size: 14px; }
.related-product p { margin-top: 4px; color: var(--muted); font-size: 9px; }
.related-product > svg { align-self: end; color: var(--blue); font-size: 18px; }

.contact-cta { padding: 80px 0; border-top: 6px solid var(--green); background: var(--ink); color: #fff; }
.contact-cta .shell { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 50px; }
.contact-cta h2 { margin-top: 12px; font-size: 34px; line-height: 1.3; }
.contact-cta p { margin-top: 10px; color: rgba(255,255,255,.58); font-size: 12px; }
.contact-cta-actions { display: flex; gap: 10px; }
.site-footer { padding: 27px 0; background: #0a1015; color: rgba(255,255,255,.56); }
.footer-layout { display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 36px; }
.footer-brand { display: flex; align-items: center; gap: 10px; }
.footer-brand img { width: 37px; height: 37px; }
.footer-brand strong { color: #fff; font-size: 13px; }
.footer-brand p { font-size: 9px; }
.site-footer nav { display: flex; gap: 18px; font-size: 10px; }
.site-footer nav a:hover { color: #fff; }
.site-footer .copyright { font-size: 9px; }
.back-top { position: fixed; z-index: 80; right: 21px; bottom: 21px; display: grid; width: 42px; height: 42px; place-items: center; border: 1px solid var(--line); border-radius: 6px; background: #fff; box-shadow: 0 8px 24px rgba(17,25,32,.14); opacity: 0; pointer-events: none; transition: opacity .18s ease, transform .18s ease; }
.back-top.visible { opacity: 1; pointer-events: auto; }
.back-top:hover { transform: translateY(-2px); }
.mobile-call { display: none; }

.case-library { background: #fff; }
.case-legend { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.case-legend span, .case-badge { display: inline-flex; align-items: center; gap: 6px; padding: 5px 9px; border: 1px solid #bcdacc; border-radius: 4px; background: #edf8f4; color: var(--green); font-size: 9px; font-weight: 800; }
.case-legend span:last-child, .case-badge.scenario { border-color: #c8d7e9; background: #eef4fc; color: var(--blue); }
.case-feature-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 16px; }
.case-feature { overflow: hidden; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.case-feature figure { position: relative; height: 330px; overflow: hidden; background: #e9eef1; }
.case-feature figure img { width: 100%; height: 100%; object-fit: cover; object-position: top left; }
.case-feature figure > .case-badge { position: absolute; top: 15px; left: 15px; }
.case-feature-body { padding: 28px; }
.case-feature-body h2 { margin-top: 14px; font-size: 23px; }
.case-feature-body > p { margin-top: 9px; color: var(--muted); font-size: 11px; }
.case-meta { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 18px; }
.case-meta span { padding: 5px 8px; border: 1px solid var(--line); border-radius: 4px; color: var(--ink-2); font-size: 9px; }
.case-feature-body .text-link { margin-top: 20px; }
.actual-cases { background: var(--soft); }
.actual-case-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 13px; }
.actual-case-card { overflow: hidden; border: 1px solid var(--line); border-radius: 7px; background: #fff; }
.actual-case-card img { width: 100%; aspect-ratio: 1; object-fit: contain; padding: 12px; }
.actual-case-card div { min-height: 112px; padding: 16px; border-top: 1px solid var(--line); }
.actual-case-card span { color: var(--green); font-size: 8px; font-weight: 800; }
.actual-case-card h3 { margin-top: 6px; font-size: 13px; }
.actual-case-card p { margin-top: 3px; color: var(--muted); font-size: 9px; }
.scenario-section { background: #fff; }
.scenario-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.scenario-card { min-height: 250px; padding: 25px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.scenario-card > svg { color: var(--blue); font-size: 26px; }
.scenario-card:nth-child(3n) > svg { color: var(--orange); }
.scenario-card:nth-child(4n) > svg { color: var(--green); }
.scenario-card .case-badge { margin-top: 31px; }
.scenario-card h3 { margin-top: 13px; font-size: 15px; }
.scenario-card p { margin-top: 7px; color: var(--muted); font-size: 10px; }
.online-case-band { background: var(--ink); color: #fff; }
.online-case-layout { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 50px; }
.online-case-layout h2 { margin-top: 12px; font-size: 31px; }
.online-case-layout p { margin-top: 9px; color: rgba(255,255,255,.58); font-size: 11px; }
.online-case-actions { display: flex; gap: 10px; }

.delivery-services { background: #fff; }
.service-mode-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.service-mode { min-height: 245px; padding: 28px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.service-mode > svg { color: var(--blue); font-size: 27px; }
.service-mode:nth-child(3n+2) > svg { color: var(--green); }
.service-mode:nth-child(3n) > svg { color: var(--orange); }
.service-mode h3 { margin-top: 40px; font-size: 16px; }
.service-mode p { margin-top: 7px; color: var(--muted); font-size: 10px; }
.service-mode ul { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }
.service-mode li { padding: 4px 7px; border: 1px solid var(--line); border-radius: 4px; color: var(--ink-2); font-size: 8px; }
.delivery-process-page { background: var(--soft); }
.delivery-timeline { display: grid; grid-template-columns: repeat(6,1fr); }
.delivery-step { position: relative; min-height: 270px; padding: 25px 20px; border: 1px solid var(--line); border-right: 0; background: #fff; }
.delivery-step:first-child { border-radius: 7px 0 0 7px; }
.delivery-step:last-child { border-right: 1px solid var(--line); border-radius: 0 7px 7px 0; }
.delivery-step > span { color: #a8b4ba; font-size: 9px; font-weight: 800; }
.delivery-step > svg { display: block; margin-top: 29px; color: var(--blue); font-size: 25px; }
.delivery-step h3 { margin-top: 38px; font-size: 14px; }
.delivery-step p { margin-top: 6px; color: var(--muted); font-size: 9px; }
.deliverables-section { background: #fff; }
.deliverable-table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 7px; }
.deliverable-table { width: 100%; min-width: 790px; border-collapse: collapse; }
.deliverable-table th, .deliverable-table td { padding: 17px 18px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.deliverable-table th:last-child, .deliverable-table td:last-child { border-right: 0; }
.deliverable-table tr:last-child td { border-bottom: 0; }
.deliverable-table th { background: var(--ink); color: #fff; font-size: 10px; }
.deliverable-table td { color: var(--muted); font-size: 10px; }
.deliverable-table td:first-child { color: var(--blue); font-weight: 800; }
.deliverable-table strong { color: var(--ink); font-size: 11px; }
.boundary-section { background: var(--blue-soft); }
.boundary-grid { display: grid; grid-template-columns: repeat(4,1fr); }
.boundary-grid div { min-height: 190px; padding: 25px; border-left: 1px solid #cbd9e8; }
.boundary-grid div:last-child { border-right: 1px solid #cbd9e8; }
.boundary-grid svg { color: var(--green); font-size: 23px; }
.boundary-grid strong { display: block; margin-top: 35px; font-size: 14px; }
.boundary-grid p { margin-top: 6px; color: var(--muted); font-size: 9px; }
.delivery-faq { background: #fff; }
.delivery-faq-layout { display: grid; grid-template-columns: 310px 1fr; gap: 80px; }
.delivery-faq-list { border-top: 1px solid var(--line); }
.delivery-faq-list details { border-bottom: 1px solid var(--line); }
.delivery-faq-list summary { display: flex; min-height: 70px; align-items: center; justify-content: space-between; gap: 20px; font-size: 13px; font-weight: 700; cursor: pointer; list-style: none; }
.delivery-faq-list summary::-webkit-details-marker { display: none; }
.delivery-faq-list summary svg { flex: 0 0 auto; color: var(--blue); transition: transform .18s ease; }
.delivery-faq-list details[open] summary svg { transform: rotate(45deg); }
.delivery-faq-list details p { padding: 0 42px 22px 0; color: var(--muted); font-size: 10px; }

@media (max-width: 1060px) {
    .brand-copy small { display: none; }
    .main-nav { gap: 17px; }
    .home-hero-layout { grid-template-columns: minmax(340px,.9fr) minmax(0,1.1fr); gap: 30px; }
    .home-hero h1 { font-size: 42px; }
    .home-system-collage { height: 460px; }
    .system-shot-primary { width: 97%; }
    .system-shot-secondary { width: 62%; }
    .collage-note { width: 39%; }
    .directory-item { grid-template-columns: 1fr 170px; }
    .product-hero-layout { grid-template-columns: minmax(360px,.95fr) minmax(0,1.05fr); gap: 34px; }
    .product-hero-scene { height: 430px; }
    .workflow-layout { grid-template-columns: 290px 1fr; gap: 50px; }
    .delivery-timeline { grid-template-columns: repeat(3,1fr); gap: 10px; }
    .delivery-step, .delivery-step:first-child, .delivery-step:last-child { border: 1px solid var(--line); border-radius: 6px; }
}

@media (max-width: 820px) {
    .site-header { height: 64px; }
    .brand img { width: 38px; height: 38px; }
    .brand-copy strong { font-size: 16px; }
    .main-nav { position: fixed; inset: 64px 0 auto; display: none; max-height: calc(100svh - 64px); overflow-y: auto; flex-direction: column; align-items: stretch; gap: 0; margin-left: 0; padding: 12px 16px 22px; border-bottom: 1px solid var(--line); background: #fff; box-shadow: 0 18px 30px rgba(17,25,32,.12); }
    .main-nav.open { display: flex; }
    .main-nav > a, .nav-parent { min-height: 46px; border-bottom: 1px solid var(--line); }
    .nav-dropdown { order: 1; }
    .main-nav > a:first-child { order: 0; }
    .main-nav > a:nth-of-type(2), .main-nav > a:nth-of-type(3), .main-nav > a:nth-of-type(4) { order: 2; }
    .dropdown-menu { position: static; width: 100%; padding: 7px 0 9px; border: 0; border-bottom: 1px solid var(--line); border-radius: 0; box-shadow: none; opacity: 1; visibility: visible; transform: none; }
    .dropdown-menu a { padding: 8px 10px; }
    .header-cta { display: none; }
    .menu-toggle { display: inline-flex; margin-left: auto; }
    .home-hero { min-height: 960px; height: auto; max-height: none; padding: 64px 0 55px; }
    .home-hero::before { inset: auto 0 0; width: 100%; height: 43%; border-top: 1px solid #ccd8d9; border-left: 0; }
    .home-hero::after { top: auto; right: 0; bottom: 0; width: 7px; height: 43%; }
    .home-hero-layout { grid-template-columns: 1fr; gap: 42px; }
    .home-hero-copy { max-width: 620px; }
    .home-system-collage { width: min(100%,680px); height: 445px; justify-self: center; }
    .proof-row { grid-template-columns: repeat(2,1fr); }
    .proof-row div { min-height: 88px; border-bottom: 1px solid rgba(255,255,255,.13); }
    .product-gateway, .product-directory { grid-template-columns: 1fr; }
    .case-split { grid-template-columns: 1fr; }
    .case-shot { min-height: 360px; }
    .miniapp-strip { grid-template-columns: repeat(4,1fr); }
    .summary-grid { grid-template-columns: 1fr; gap: 38px; }
    .extension-grid { grid-template-columns: repeat(2,1fr); }
    .product-hero { min-height: 0; padding: 52px 0; }
    .product-hero-layout { min-height: 0; grid-template-columns: 1fr; gap: 36px; }
    .product-hero-scene { height: 360px; }
    .outcome-grid { grid-template-columns: 1fr; }
    .outcome-grid div { min-height: 125px; border-right: 1px solid rgba(255,255,255,.14); border-bottom: 1px solid rgba(255,255,255,.14); }
    .product-description-layout { grid-template-columns: 1fr; gap: 38px; }
    .capability-grid { grid-template-columns: repeat(2,1fr); }
    .workflow-layout, .deployment-layout { grid-template-columns: 1fr; gap: 36px; }
    .screen-showcase { grid-template-columns: 1fr; }
    .screen-main { min-height: 360px; }
    .screen-info { border-top: 1px solid var(--line); border-left: 0; }
    .qr-cases { grid-template-columns: repeat(3,1fr); }
    .related-grid { grid-template-columns: 1fr; }
    .actual-case-grid, .scenario-grid { grid-template-columns: repeat(2,1fr); }
    .case-feature-grid { grid-template-columns: 1fr; }
    .online-case-layout { grid-template-columns: 1fr; }
    .service-mode-grid { grid-template-columns: repeat(2,1fr); }
    .boundary-grid { grid-template-columns: repeat(2,1fr); }
    .boundary-grid div { border-bottom: 1px solid #cbd9e8; }
    .delivery-faq-layout { grid-template-columns: 1fr; gap: 30px; }
    .contact-cta .shell { grid-template-columns: 1fr; gap: 28px; }
    .footer-layout { grid-template-columns: 1fr; gap: 19px; }
}

@media (max-width: 580px) {
    .shell { width: min(calc(100% - 32px), var(--shell)); }
    .section { padding: 72px 0; }
    .section-head { align-items: flex-start; flex-direction: column; gap: 13px; margin-bottom: 30px; }
    .section-head h2, .section-title h2 { font-size: 28px; }
    .home-hero { min-height: 740px; padding: 38px 0 28px; }
    .home-hero::before { height: 38%; }
    .home-hero::after { height: 38%; }
    .home-hero-layout { gap: 24px; }
    .home-hero h1 { font-size: 32px; }
    .home-hero .lead { margin-top: 15px; font-size: 21px; }
    .home-hero .desc { font-size: 13px; }
    .hero-actions { margin-top: 22px; }
    .hero-actions .button { flex: 1 1 145px; padding: 0 13px; font-size: 11px; }
    .hero-points { gap: 8px; margin-top: 18px; }
    .hero-points li { flex: 1; align-items: flex-start; flex-direction: column; font-size: 8px; }
    .home-system-collage { height: 285px; }
    .system-shot-primary { top: 8px; width: 100%; }
    .system-shot-secondary { right: 4px; bottom: 0; width: 58%; }
    .shot-bar, .system-shot-secondary .shot-bar { height: 28px; grid-template-columns: 43px 1fr; padding: 0 8px; }
    .shot-bar strong { font-size: 7px; text-align: left; }
    .shot-bar em { display: none; }
    .shot-dots { gap: 4px; }
    .shot-dots i { width: 6px; height: 6px; }
    .collage-note { display: none; }
    .proof-row strong { font-size: 14px; }
    .proof-row span { font-size: 8px; }
    .product-entry { min-height: 330px; grid-template-columns: 1fr 42px; padding: 24px; }
    .product-entry h3 { font-size: 18px; }
    .case-shot { min-height: 270px; }
    .case-copy { padding: 28px 23px; }
    .case-copy h3 { font-size: 22px; }
    .miniapp-strip { grid-template-columns: repeat(3,1fr); }
    .service-list { grid-template-columns: 1fr; }
    .page-banner { padding: 54px 0; }
    .page-banner h1 { font-size: 34px; }
    .directory-item { min-height: 0; grid-template-columns: 1fr; }
    .directory-visual { min-height: 210px; }
    .directory-copy { padding: 26px; }
    .extension-grid { grid-template-columns: 1fr; }
    .extension-grid div { min-height: 145px; border-right: 1px solid rgba(255,255,255,.14); }
    .extension-grid strong { margin-top: 24px; }
    .product-hero { min-height: 0; padding: 42px 0; }
    .product-hero-layout { min-height: 0; gap: 28px; }
    .product-hero-copy h1 { font-size: 32px; }
    .product-hero-copy .product-slogan { font-size: 19px; }
    .product-hero-scene { height: 245px; }
    .product-description-main h2 { font-size: 28px; }
    .product-facts > div { min-height: 0; grid-template-columns: 1fr; gap: 7px; padding: 18px 0; }
    .capability-grid { grid-template-columns: 1fr; }
    .capability-item { min-height: 190px; }
    .workflow-copy h2, .deployment-copy h2 { font-size: 28px; }
    .screen-main { min-height: 260px; }
    .screen-info { padding: 28px 23px; }
    .qr-cases { grid-template-columns: repeat(2,1fr); }
    .actual-case-grid, .scenario-grid, .service-mode-grid, .delivery-timeline, .boundary-grid { grid-template-columns: 1fr; }
    .case-feature figure { height: 250px; }
    .scenario-card, .service-mode { min-height: 210px; }
    .online-case-actions { flex-direction: column; }
    .delivery-step { min-height: 220px; }
    .delivery-step h3 { margin-top: 24px; }
    .delivery-faq-list summary { font-size: 12px; }
    .contact-cta h2 { font-size: 28px; }
    .contact-cta-actions { flex-direction: column; }
    .mobile-call { position: fixed; z-index: 85; right: 16px; bottom: 16px; display: inline-flex; min-height: 44px; align-items: center; gap: 7px; padding: 0 15px; border-radius: 6px; background: var(--blue); color: #fff; box-shadow: 0 12px 28px rgba(10,99,220,.3); font-size: 11px; font-weight: 750; }
    .back-top { right: 16px; bottom: 72px; }
}

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