/* Only the APP development page overrides the legacy fixed-width layout. */
body.app-development-page { min-width: 0; width: auto; margin: 0; padding: 0; background: #fff; }
.app-development-page { --ad-ink: #20243b; --ad-muted: #666b7d; --ad-orange: #ed592b; --ad-purple: #6860c7; }
.app-development-page .center, .app-development-page .container { width: min(1200px, calc(100% - 64px)); min-width: 0; }
.app-development-page .ad-page { color: var(--ad-ink); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; line-height: 1.7; }
.app-development-page .ad-page *, .app-development-page .ad-page *::before, .app-development-page .ad-page *::after { box-sizing: border-box; }
.app-development-page .ad-page :where(h1, h2, h3, h4, p, ul, ol, figure) { margin: 0; padding: 0; }
.app-development-page .ad-page ul, .app-development-page .ad-page ol { list-style: none; }
.app-development-page .ad-page a { text-decoration: none; }
.app-development-page .ad-page a:focus-visible, .app-development-page .ad-page summary:focus-visible { outline: 3px solid #9b91eb; outline-offset: 5px; }
.app-development-page .ad-wrap { width: min(1200px, calc(100% - 64px)); margin: 0 auto; }
.app-development-page .ad-skip { position: absolute; top: -60px; left: 16px; z-index: 10000; padding: 10px 16px; background: #fff; color: #20243b; }
.app-development-page .ad-skip:focus { top: 12px; }
.app-development-page .nav-item a[href="/app-development"] { background: rgba(0,0,0,.1); color: #fff; }
.app-development-page .ad-hero { position: relative; isolation: isolate; overflow: hidden; min-height: 480px; background: #171136; color: #fff; }
.app-development-page .ad-hero-art { position: absolute; z-index: -2; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.app-development-page .ad-hero::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(20,14,51,.8), rgba(20,14,51,.18) 57%, transparent 75%); }
.app-development-page .ad-hero-inner { padding-top: 62px; padding-bottom: 64px; }
.app-development-page .ad-hero h1 { font-size: clamp(36px, 3.6vw, 50px); font-weight: 650; line-height: 1.32; letter-spacing: 1px; }
.app-development-page .ad-hero h1 span { color: #ffa472; }
.app-development-page .ad-hero-copy { max-width: 580px; margin-top: 21px; color: #dfdaed; font-size: 16px; line-height: 1.9; }
.app-development-page .ad-platforms { display: flex; gap: 10px; margin: 23px 0 27px; }
.app-development-page .ad-platforms li { border: 1px solid #ffffff38; border-radius: 4px; font-size: 13px; min-width: 76px; padding: 3px 14px; text-align: center; background: #ffffff08; }
.app-development-page .ad-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; }
.app-development-page .ad-button { display: inline-flex; justify-content: center; align-items: center; gap: 22px; padding: 12px 24px; min-height: 48px; border: 1px solid transparent; border-radius: 4px; font-size: 15px; font-weight: 600; transition: background .15s; }
.app-development-page .ad-primary { background: var(--ad-orange); color: #fff; }
.app-development-page .ad-primary:hover { background: #d74d21; color: #fff; }
.app-development-page .ad-outline { border-color: #ffffff70; color: #fff; }
.app-development-page .ad-outline:hover { background: #ffffff14; color: #fff; }
.app-development-page .ad-audience { background: #f6f5fa; border-bottom: 1px solid #efedf5; }
.app-development-page .ad-audience .ad-wrap { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-top: 22px; padding-bottom: 22px; font-size: 14px; color: #737285; }
.app-development-page .ad-audience strong { font-weight: 500; color: #33344b; }
.app-development-page .ad-audience span { padding-left: 30px; border-left: 1px solid #dddbe6; }
.app-development-page .ad-section { padding-top: 76px; padding-bottom: 76px; }
.app-development-page [id^="ad-"] { scroll-margin-top: 90px; }
.app-development-page .ad-section-heading { text-align: center; margin-bottom: 42px; }
.app-development-page .ad-section h2 { font-size: 30px; font-weight: 600; line-height: 1.5; letter-spacing: .5px; }
.app-development-page .ad-section-heading h2::after { content: ""; display: block; margin: 19px auto; width: 40px; height: 3px; background: var(--ad-orange); }
.app-development-page .ad-section-heading > p:last-child { color: var(--ad-muted); font-size: 15px; }
.app-development-page .ad-capabilities { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.app-development-page .ad-capability { padding: 29px; border: 1px solid #e9e8ef; border-radius: 8px; background: #fff; }
.app-development-page .ad-feature-icon { display: inline-flex; align-items: center; justify-content: center; width: 48px; height: 48px; border-radius: 12px; background: #f0edf9; color: var(--ad-purple); font-size: 26px; margin-bottom: 20px; }
.app-development-page .ad-capability h3 { font-size: 18px; font-weight: 600; margin-bottom: 11px; }
.app-development-page .ad-capability p { color: var(--ad-muted); font-size: 14px; line-height: 1.9; }
.app-development-page .ad-capability small { display: block; font-size: 12px; color: #767188; margin-top: 21px; padding-top: 17px; border-top: 1px solid #f0eef5; letter-spacing: 1px; }
.app-development-page .ad-soft { background: #f8f8fb; }
.app-development-page .ad-scenarios { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.app-development-page .ad-scenario { background: #fff; border-radius: 8px; overflow: hidden; border: 1px solid #ecebf2; }
.app-development-page .ad-scenario-image { position: relative; aspect-ratio: 3/2; background: #f0edf7; }
.app-development-page .ad-scenario-image img { display: block; width: 100%; height: 100%; object-fit: cover; }
.app-development-page .ad-scenario-copy { padding: 24px 25px 28px; }
.app-development-page .ad-scenario h3 { font-size: 20px; font-weight: 600; }
.app-development-page .ad-scenario h4 { color: #464255; font-size: 14px; font-weight: 500; margin: 10px 0; }
.app-development-page .ad-scenario p { color: var(--ad-muted); font-size: 14px; line-height: 1.9; }
.app-development-page .ad-system { background: #f7f6fc; border: 1px solid #eeebf7; border-radius: 10px; padding: 38px; }
.app-development-page .ad-system-flow { display: grid; grid-template-columns: 1fr 40px 1fr 40px 1fr; align-items: center; gap: 18px; }
.app-development-page .ad-system-node { text-align: center; border: 1px solid #e8e5f2; background: #fff; border-radius: 8px; padding: 25px 10px; }
.app-development-page .ad-system-node i { font-size: 34px; color: #7863b8; margin-bottom: 13px; }
.app-development-page .ad-system-node h3 { font-size: 18px; margin-bottom: 7px; font-weight: 600; }
.app-development-page .ad-system-node p { font-size: 13px; color: var(--ad-muted); }
.app-development-page .ad-system-app { background: #302451; color: #fff; border-color: #302451; }
.app-development-page .ad-system-app i { color: #d5c5ff; }
.app-development-page .ad-system-app p { color: #d4cce3; }
.app-development-page .ad-connector { text-align: center; font-size: 32px; color: #9383b8; }
.app-development-page .ad-system-points { margin-top: 28px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; padding-top: 25px; border-top: 1px solid #e3dfef; }
.app-development-page .ad-system-points h3 { font-size: 15px; margin-bottom: 8px; font-weight: 600; }
.app-development-page .ad-system-points p { color: var(--ad-muted); font-size: 13px; }
.app-development-page .ad-process { display: grid; grid-template-columns: repeat(6, 1fr); gap: 24px; }
.app-development-page .ad-process li { position: relative; }
.app-development-page .ad-process li:not(:last-child)::after { content: ""; position: absolute; top: 22px; left: 58px; right: 0; height: 1px; background: #dfdbea; }
.app-development-page .ad-step-number { display: inline-flex; justify-content: center; align-items: center; border: 1px solid #e0daed; background: #fff; width: 44px; height: 44px; border-radius: 50%; color: #766098; font-size: 15px; margin-bottom: 20px; }
.app-development-page .ad-process h3 { font-size: 16px; margin-bottom: 8px; font-weight: 600; }
.app-development-page .ad-process p { font-size: 13px; color: var(--ad-muted); max-width: 142px; }
.app-development-page .ad-delivery { display: flex; align-items: center; justify-content: space-between; gap: 30px; background: #fff; border: 1px solid #e9e6f0; border-radius: 8px; padding: 30px; margin-top: 40px; }
.app-development-page .ad-delivery h3 { font-size: 22px; font-weight: 600; }
.app-development-page .ad-delivery ul { display: grid; grid-template-columns: repeat(2, 1fr); gap: 13px 40px; font-size: 14px; }
.app-development-page .ad-delivery i { color: var(--ad-orange); margin-right: 10px; }
.app-development-page .ad-faq-section { display: grid; grid-template-columns: 1fr 2fr; gap: 70px; }
.app-development-page .ad-faq-heading > p { font-size: 15px; color: var(--ad-muted); margin: 20px 0 24px; }
.app-development-page .ad-text-link { color: var(--ad-orange); font-size: 14px; font-weight: 600; }
.app-development-page .ad-faq details { border-bottom: 1px solid #e6e5ed; padding: 0 0 19px; margin-bottom: 18px; }
.app-development-page .ad-faq summary { display: flex; justify-content: space-between; align-items: center; gap: 16px; list-style: none; cursor: pointer; font-size: 16px; font-weight: 500; min-height: 30px; }
.app-development-page .ad-faq summary::-webkit-details-marker { display: none; }
.app-development-page .ad-faq summary span { font-size: 22px; font-weight: 400; color: #817c91; }
.app-development-page .ad-faq details[open] summary span { transform: rotate(45deg); color: var(--ad-orange); }
.app-development-page .ad-faq details p { color: var(--ad-muted); font-size: 14px; line-height: 1.9; margin-top: 14px; padding-right: 30px; }
.app-development-page .ad-contact { background: linear-gradient(110deg, #251940, #33204c); color: #fff; padding: 60px 0; }
.app-development-page .ad-contact-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.app-development-page .ad-contact h2 { font-size: 30px; font-weight: 600; margin-bottom: 15px; line-height: 1.5; }
.app-development-page .ad-contact-copy > p { color: #d6cfdf; font-size: 15px; }
.app-development-page .ad-contact-materials { display: flex; flex-wrap: wrap; gap: 8px 20px; margin: 16px 0; color: #fff; font-size: 14px; }
.app-development-page .ad-contact-materials li::before { content: "✓"; margin-right: 8px; color: #ffa472; }
.app-development-page .ad-contact .ad-actions { margin-top: 26px; gap: 28px; }
.app-development-page .ad-contact-phone { color: #fff; display: flex; flex-direction: column; line-height: 1.5; }
.app-development-page .ad-contact-phone:hover { color: #ffb993; }
.app-development-page .ad-contact-phone small { color: #c7bdd5; font-size: 12px; }
.app-development-page .ad-contact-phone strong { font-size: 22px; font-weight: 600; }
.app-development-page .ad-contact .ad-contact-time { margin-top: 15px; font-size: 12px; }
.app-development-page .ad-contact-qr { text-align: center; flex: 0 0 190px; }
.app-development-page .ad-contact-qr img { display: block; width: 140px; height: 140px; object-fit: contain; padding: 6px; background: #fff; border-radius: 6px; margin: 0 auto 12px; }
.app-development-page .ad-contact-qr figcaption { font-size: 13px; color: #ddd4e7; }
@media (max-width: 1199px) {
    .app-development-page .right-sidebar { display: none; }
    .app-development-page #headerApp .search { display: none; }
    .app-development-page #headerApp .contact { margin-right: 0; }
    .app-development-page .ad-hero-art { object-position: 58% center; }
    .app-development-page .ad-capability { padding: 23px; }
    .app-development-page .ad-process { grid-template-columns: repeat(3, 1fr); gap: 30px; }
    .app-development-page .ad-process li:nth-child(3)::after { display: none; }
}
@media (max-width: 800px) {
    .app-development-page .center, .app-development-page .container, .app-development-page .ad-wrap { width: calc(100% - 40px); }
    .app-development-page #headerApp .nav { height: auto; }
    .app-development-page .nav-item { display: flex; flex-wrap: wrap; height: auto; }
    .app-development-page .nav-item > li { float: none; margin: 0; }
    .app-development-page .nav-item > li > a, .app-development-page .nav-item > li > .el-dropdown > a { padding: 0 15px; }
    .app-development-page .menu-hd-child { display: none; }
    .app-development-page .right-sidebar { display: none; }
    .app-development-page .ad-hero { min-height: 480px; }
    .app-development-page .ad-hero-art { opacity: .55; object-position: 63% center; }
    .app-development-page .ad-hero::after { background: linear-gradient(90deg, #171136ee 10%, #17113655 100%); }
    .app-development-page .ad-section { padding-top: 54px; padding-bottom: 54px; }
    .app-development-page .ad-section h2 { font-size: 27px; }
    .app-development-page .ad-audience .ad-wrap { flex-wrap: wrap; justify-content: flex-start; gap: 12px 20px; }
    .app-development-page .ad-audience strong { flex-basis: 100%; }
    .app-development-page .ad-audience span { border: 0; padding: 0; font-size: 12px; }
    .app-development-page .ad-capabilities { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .app-development-page .ad-scenarios { grid-template-columns: 1fr; }
    .app-development-page .ad-scenario { display: grid; grid-template-columns: 1fr 1fr; align-items: center; }
    .app-development-page .ad-system { padding: 24px; }
    .app-development-page .ad-system-flow { grid-template-columns: 1fr 20px 1fr 20px 1fr; gap: 8px; }
    .app-development-page .ad-system-node p { font-size: 11px; }
    .app-development-page .ad-system-node h3 { font-size: 16px; }
    .app-development-page .ad-system-points { gap: 20px; }
    .app-development-page .ad-delivery { align-items: flex-start; flex-direction: column; }
    .app-development-page .ad-faq-section { grid-template-columns: 1fr; gap: 32px; }
    .app-development-page .ad-faq-heading h2 br, .app-development-page .ad-faq-heading > p br { display: none; }
    .app-development-page .ad-contact h2 { font-size: 26px; }
    .app-development-page .ad-contact-qr { flex-basis: 150px; }
    .app-development-page .footer .link { height: auto; white-space: normal; }
    .app-development-page .footer .infomation { padding: 20px 0; }
    .app-development-page .footer .copyright-info { white-space: normal; overflow-wrap: anywhere; height: auto; }
}
@media (max-width: 540px) {
    .app-development-page .topbar, .app-development-page #headerApp .mini-header, .app-development-page #headerApp .contact { display: none !important; }
    .app-development-page #headerApp .header { height: 84px; position: static; padding: 0; }
    .app-development-page #headerApp #commonHeader { display: flex !important; align-items: center; height: 84px; padding: 0; }
    .app-development-page #headerApp .logo { margin: 0; padding: 0; height: auto; }
    .app-development-page #headerApp .logo h1 { height: auto; line-height: 1; }
    .app-development-page #headerApp .logo img { max-width: 185px; max-height: 60px; width: auto; height: auto; }
    .app-development-page .nav-item { width: 100%; padding: 0 8px; }
    .app-development-page .nav-item > li { flex: 0 0 33.333%; text-align: center; }
    .app-development-page .nav-item > li > a, .app-development-page .nav-item > li > .el-dropdown > a { display: block; padding: 0 4px; font-size: 13px; line-height: 44px; }
    .app-development-page .nav-item .el-dropdown { display: block; }
    .app-development-page .nav-item > li > span, .app-development-page .nav-item > li > .el-dropdown > span { display: none; }
    .app-development-page .ad-hero { min-height: 500px; }
    .app-development-page .ad-hero-inner { padding-top: 40px; padding-bottom: 42px; }
    .app-development-page .ad-hero h1 { font-size: 36px; }
    .app-development-page .ad-hero-copy { font-size: 14px; max-width: 300px; }
    .app-development-page .ad-hero-art { object-position: 65% center; opacity: .35; }
    .app-development-page .ad-desktop-break { display: none; }
    .app-development-page .ad-button { padding: 11px 16px; gap: 12px; font-size: 14px; }
    .app-development-page .ad-actions { gap: 10px; }
    .app-development-page .ad-section-heading { margin-bottom: 30px; }
    .app-development-page .ad-section h2 { font-size: 24px; }
    .app-development-page .ad-section-heading > p:last-child { font-size: 14px; }
    .app-development-page .ad-capabilities { grid-template-columns: 1fr; }
    .app-development-page .ad-capability { padding: 24px; }
    .app-development-page .ad-scenario { display: block; }
    .app-development-page .ad-system-flow { grid-template-columns: 1fr; }
    .app-development-page .ad-system-node { padding: 20px; }
    .app-development-page .ad-connector { transform: rotate(90deg); line-height: 25px; }
    .app-development-page .ad-system-points { grid-template-columns: 1fr; }
    .app-development-page .ad-process { grid-template-columns: repeat(2, 1fr); gap: 28px 20px; }
    .app-development-page .ad-process li:nth-child(3)::after { display: block; }
    .app-development-page .ad-process li:nth-child(2n)::after { display: none; }
    .app-development-page .ad-delivery { padding: 23px; }
    .app-development-page .ad-delivery ul { gap: 12px 18px; font-size: 12px; }
    .app-development-page .ad-contact { padding: 42px 0; }
    .app-development-page .ad-contact-inner { flex-direction: column; align-items: flex-start; }
    .app-development-page .ad-contact-qr { flex-basis: auto; }
    .app-development-page .footer .no-login-prompt { display: none; }
    .app-development-page .footer .link a { display: inline-block; }
    .app-development-page .footer { overflow-wrap: anywhere; }
}
@media (prefers-reduced-motion: reduce) { .app-development-page .ad-button { transition: none; } }
.app-development-page.ad-no-customer-link .right-sidebar .custom-li { display: none; }

/* Case album: replace the four local images to update the portfolio. */
.app-development-page .ad-album { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 28px; }
.app-development-page .ad-case-image { position: relative; display: block; padding: 16px; background: #f1f2f4; border-radius: 8px; }
.app-development-page .ad-case-image img { display: block; width: 100%; height: auto; aspect-ratio: 4/7; object-fit: contain; border-radius: 6px; box-shadow: 0 3px 15px #20243b12; }
.app-development-page .ad-case-image span { display: block; text-align: center; margin-top: 12px; color: #626777; font-size: 12px; }
.app-development-page .ad-case h3 { font-size: 18px; margin: 20px 0 6px; font-weight: 600; }
.app-development-page .ad-case p { font-size: 14px; color: var(--ad-muted); line-height: 1.8; }
.app-development-page .ad-case .ad-case-category { font-size: 12px; color: #858894; margin-bottom: 10px; }
.app-development-page .ad-gallery { margin: auto; inset: 0; width: min(700px, calc(100% - 24px)); max-height: calc(100dvh - 24px); padding: 18px; border: 0; border-radius: 10px; color: #20243b; background: #fff; box-sizing: border-box; }
.app-development-page .ad-gallery:not([open]) { display: none; }
.app-development-page .ad-gallery::backdrop { background: #10121bcc; }
.app-development-page .ad-gallery-toolbar, .app-development-page .ad-gallery-controls { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.app-development-page .ad-gallery-toolbar p { margin: 0; font-size: 17px; font-weight: 600; }
.app-development-page .ad-gallery button { min-height: 44px; padding: 8px 12px; border: 1px solid #dedfe5; border-radius: 4px; background: #fff; color: #20243b; cursor: pointer; font: inherit; }
.app-development-page .ad-gallery button:focus-visible { outline: 3px solid #6860c7; outline-offset: 2px; }
.app-development-page .ad-gallery-image { display: block; width: 100%; height: min(70vh, 900px); height: min(70dvh, 900px); object-fit: contain; margin: 12px auto; }
@media (max-width: 1024px) { .app-development-page .ad-album { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 540px) {
    .app-development-page .ad-album { gap: 28px 16px; }
    .app-development-page .ad-case-image { padding: 8px; }
    .app-development-page .ad-case-image span { font-size: 10px; }
    .app-development-page .ad-case h3 { font-size: 16px; margin-top: 14px; }
    .app-development-page .ad-case p { font-size: 13px; }
    .app-development-page .ad-gallery { padding: 12px; }
    .app-development-page .ad-gallery-image { height: 65vh; height: 65dvh; }
}