/* Seeyon — spacious editorial layout, local assets and native interactions. */
:root {
  --ink: #1d1d1f;
  --muted: #6e6e73;
  --blue: #0071e3;
  --paper: #f5f5f7;
  --nav-height: 64px;
  --radius: 30px;
  --type-section: clamp(2rem, 3.7vw, 3.5rem);
}
html { scroll-padding-block-start: 88px; }
body { padding-top: var(--nav-height); color: var(--ink); }
address { font-style: normal; }
h1,h2,h3 { text-wrap: balance; }
h2 { font-weight: 600; line-height: 1.18; letter-spacing: -.035em; }
.wrap { width: min(1120px,calc(100% - 96px)); }
.section { padding-block: 120px; }
.section-heading { align-items: flex-end; margin-bottom: 56px; gap: 36px; }
.section-heading h2 { max-inline-size: 12em; }
.heading-description { max-inline-size: 23em; font-size: 1.0625rem; line-height: 1.7; }
.eyebrow { color: var(--muted); font-size: .8125rem; letter-spacing: .02em; font-weight: 500; margin-bottom: 20px; }
a[href],button { cursor: pointer; }
.button { border-radius: 999px; padding: 12px 23px; min-height: 46px; font-size: .9375rem; font-weight: 400; background: var(--blue); transition: background-color .18s; }
.button:hover { background: #0077ed; transform: none; }
.button-small { min-height: 34px; padding: 6px 17px; font-size: .75rem; }
.button-outline { background: transparent; border: 1px solid var(--blue); color: var(--blue); }
.button-outline:hover { background: var(--blue); color: white; }
.text-link { font-weight: 400; gap: 7px; }
:where(a,button,select,summary):focus-visible { outline: 3px solid #0071e3; outline-offset: 4px; }

/* Compact global navigation, with a stable pointer target. */
.site-header { position: fixed; inset: 0 0 auto; z-index: 100; isolation: isolate; background: rgba(255,255,255,.88); backdrop-filter: saturate(180%) blur(20px); -webkit-backdrop-filter: saturate(180%) blur(20px); border-bottom: 1px solid #00000012; box-shadow: none; }
.nav { position: relative; min-height: var(--nav-height); flex-wrap: nowrap; padding-block: 0; gap: 24px; }
.brand { position: relative; z-index: 1; gap: 9px; letter-spacing: 0; }
.brand img.brand-logo,.footer-top .brand img.brand-logo { width: 33px; height: auto; flex-shrink: 0; object-fit: contain; }
.brand-copy { display: flex; flex-direction: column; gap: 0; }
.brand-copy b { font-size: 1rem; font-weight: 600; line-height: 1.4; }
.brand-copy small { font-size: .5625rem; font-weight: 400; color: var(--muted); letter-spacing: .015em; line-height: 1.5; }
.nav-links { position: relative; z-index: 1; display: flex; flex-wrap: nowrap; align-items: center; gap: 9px; margin: 0 0 0 auto; padding: 0; border: 0; border-radius: 0; background: transparent; }
.nav-links a { position: relative; display: inline-flex; justify-content: center; align-items: center; min-height: 44px; padding: 0 8px; border-radius: 0; color: #424245; font-size: .75rem; white-space: nowrap; cursor: pointer; pointer-events: auto; transition: color .16s; }
.nav-links a:hover,.nav-links a[aria-current] { color: var(--blue); background: transparent; box-shadow: none; }
.nav-links a[aria-current]:after { content: ''; position: absolute; bottom: 2px; left: 8px; right: 8px; height: 2px; border-radius: 2px; background: var(--blue); pointer-events: none; }
.nav-actions { position: relative; z-index: 2; flex-shrink: 0; margin-inline-start: 0; gap: 10px; }
.announcement { background: #f5f5f7; color: #515154; min-height: 42px; gap: 9px; font-size: .75rem; padding: 10px 22px; }
.announcement a { font-weight: 400; }

/* Centered introduction and a larger, unboxed supply-chain visual. */
.fde-hero { padding: 68px 0 0; text-align: center; background: #fff; overflow: clip; scroll-margin-block-start: 64px; }
.hero-grid { display: flex; flex-direction: column; gap: 0; align-items: center; }
.fde-hero-copy { width: 100%; max-width: 980px; }
.fde-hero .eyebrow { margin-bottom: 18px; color: #515154; font-size: .875rem; letter-spacing: 0; }
.fde-hero h1 { margin-inline: auto; font-size: clamp(2.5rem,5.9vw,5.25rem); font-weight: 600; letter-spacing: -.055em; line-height: 1.13; }
.fde-hero h1 span { display: block; color: var(--blue); }
.hero-subtitle { margin-top: 23px; font-size: 1.5rem; font-weight: 500; line-height: 1.45; letter-spacing: -.02em; }
.fde-hero-description { margin: 12px auto 0; max-inline-size: 40em; font-size: 1.0625rem; line-height: 1.7; color: var(--muted); }
.fde-hero .hero-actions { justify-content: center; gap: 16px; margin-top: 28px; }
.fde-hero .hero-actions .button { min-height: 46px; padding: 11px 24px; font-size: .9375rem; }
.hero-system { position: relative; width: min(100%,1000px); min-width: 0; margin-top: 18px; padding: 0; border: 0; border-radius: 0; background: radial-gradient(ellipse at 50% 45%,#eaf3fe70,transparent 65%); overflow: visible; }
.hero-system picture { display: block; margin: 0; width: 100%; }
.hero-system picture img { display: block; width: 100%; height: auto; }
.hero-foundations { display: flex; justify-content: center; align-items: center; gap: 34px; margin: -3px auto 0; max-width: 720px; padding-block: 12px 24px; }
.hero-foundations>div { padding: 0; border: 0; border-radius: 0; background: none; box-shadow: none; text-align: left; }
.hero-foundations>div>span { display: block; font-size: .6875rem; color: var(--muted); }
.hero-foundations b { display: block; font-size: 1.125rem; font-weight: 600; margin-top: 3px; }
.hero-foundations small { display: block; font-size: .75rem; color: var(--muted); margin-top: 4px; }
.foundation-plus { font-size: 1.25rem; font-weight: 300; color: #86868b; }
.hero-metrics { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 24px; margin-top: 24px; padding: 30px 0 36px; border-top: 1px solid #e5e5e7; }
.hero-metrics>div { display: flex; flex-direction: column; gap: 5px; align-items: center; }
.hero-metrics b { font-size: 1rem; font-weight: 600; }
.hero-metrics span { font-size: .75rem; color: var(--muted); }

/* Feature story. */
.fde-section { background: var(--paper); }
.fde-section .section-heading { align-items: center; }
.fde-section h2 { font-size: clamp(2rem,3.6vw,3.25rem); }
.fde-definition { max-width: 28em; font-size: 1.0625rem; color: var(--muted); line-height: 1.8; }
.fde-values { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 24px; margin-top: 52px; }
.fde-values article { background: #fff; border: 0; border-radius: 28px; padding: 34px 30px; }
.value-icon { display: grid; place-items: center; width: 44px; height: 44px; color: var(--blue); background: transparent; font-size: 32px; margin-bottom: 30px; }
.value-label { font-size: .75rem; color: var(--muted); }
.fde-values h3 { font-size: 1.5rem; line-height: 1.35; font-weight: 600; letter-spacing: -.025em; margin-top: 9px; }
.fde-values p { font-size: 1rem; line-height: 1.8; color: var(--muted); margin-top: 18px; }
.fde-result { display: flex; align-items: baseline; justify-content: center; flex-wrap: wrap; gap: 12px 24px; margin-top: 40px; padding: 0; font-size: .875rem; }
.fde-result>span { font-weight: 600; }
.fde-result p { color: var(--muted); }

/* A quiet dark chapter separates the two foundations from the business scenes. */
.foundation-section { color: #f5f5f7; background: radial-gradient(ellipse at 90% 0,#101a2c,transparent 55%),#050506; }
.foundation-heading .eyebrow { color: #a1a1a6; }
.foundation-heading h2 { font-size: clamp(2rem,4vw,3.75rem); font-weight: 600; }
.foundation-heading h2 span { display: block; color: #a1a1a6; margin-top: 6px; }
.foundation-heading>p:last-child { color: #a1a1a6; font-size: 1.0625rem; margin-top: 28px; max-width: 40em; line-height: 1.8; }
.foundation-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 24px; margin-top: 58px; }
.foundation-card { border: 1px solid #ffffff12; background: linear-gradient(140deg,#1b1b20,#111114); border-radius: 30px; padding: 36px 38px 0; overflow: hidden; }
.seeyon-foundation { background: linear-gradient(140deg,#151e2b,#111114); }
.foundation-card-top { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 30px; font-size: .75rem; color: #a1a1a6; }
.foundation-glyph { color: #f5f5f7; font-size: 1.75rem; }
.version-label { border: 1px solid #ffffff30; border-radius: 99px; padding: 3px 10px; color: #d1d1d6; font-size: .6875rem; }
.foundation-card h3 { font-size: 2.5rem; letter-spacing: -.025em; font-weight: 600; line-height: 1.2; margin-top: 32px; }
.foundation-role { margin-top: 14px; color: #f5f5f7; font-size: 1.125rem; }
.foundation-card>p:not(.foundation-role) { color: #a1a1a6; margin-top: 24px; font-size: 1rem; line-height: 1.8; min-height: 7.2em; }
.foundation-capabilities { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }
.foundation-capabilities span { color: #d2d2d7; background: #ffffff08; border: 1px solid #ffffff15; border-radius: 99px; padding: 6px 11px; font-size: .75rem; }
.foundation-summary { margin-top: 30px; padding: 22px 0; border-top: 1px solid #ffffff18; color: #a1a1a6; font-size: .8125rem; }
.business-loop { margin-top: 48px; }
.business-loop>p { color: #a1a1a6; font-size: .8125rem; margin-bottom: 20px; }
.business-loop ol { margin: 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); gap: 20px; }
.business-loop li { display: flex; align-items: baseline; flex-wrap: wrap; gap: 10px; padding-top: 18px; border-top: 1px solid #ffffff30; font-size: .875rem; }
.business-loop li>span { font-size: .6875rem; color: #a1a1a6; }
.foundation-note { color: #a1a1a6; font-size: .75rem; margin-top: 30px; line-height: 1.8; }

/* Scheme selection and detail. */
.products { padding-top: 120px; }
.product-tabs { background: #e8e8ed; border-radius: 999px; padding: 5px; margin-bottom: 38px; }
.product-tabs button { padding: 13px 22px; min-height: 66px; border-radius: 999px; font-size: 1rem; }
.product-tabs button span { font-size: .75rem; }
.product-tabs button[aria-selected=true] { box-shadow: 0 2px 7px #0000000a; }
.product-panel { grid-template-columns: 1fr 1fr; gap: 48px; border: 0; border-radius: 32px; padding: 58px; min-height: 450px; }
.product-kicker { font-size: .8125rem; margin-bottom: 22px; }
.product-copy h3 { font-size: 2.5rem; line-height: 1.2; max-inline-size: 8em; letter-spacing: -.035em; }
.product-description { font-size: 1.0625rem; line-height: 1.8; margin-top: 24px; }
.product-copy .text-link { font-size: 1rem; }
.tags { margin-block: 25px 14px; }
.tags span { border-radius: 999px; padding: 5px 11px; font-size: .75rem; }
.product-visual { padding: 28px 22px 19px; border-radius: 24px; background: radial-gradient(ellipse at center,#e5edf9,#f5f5f7 72%); }
.diagram-caption,.diagram-note { font-size: .75rem; }
.product-bottom { margin-top: 28px; }

/* Industry imagery is the focal point. */
.industries { padding-block: 120px; }
.industry-layout { gap: 36px; grid-template-columns: minmax(0,.8fr) minmax(0,2fr); }
.industry-options { padding-top: 0; align-self: stretch; display: flex; flex-direction: column; justify-content: center; gap: 8px; }
.industry-option,.industry-option:first-child { padding: 23px 22px; border: 0; border-radius: 18px; }
.industry-option:hover { background: #f5f5f7; }
.industry-option.active { background: #f5f5f7; }
.industry-label { font-size: 1.25rem; font-weight: 500; }
.industry-summary { font-size: .875rem; max-width: 20em; line-height: 1.7; margin-top: 12px; }
.industry-scene { min-height: 510px; border-radius: 30px; }
.industry-overlay { padding: 36px; }
.industry-overlay h3 { font-size: 2.25rem; line-height: 1.25; }
.industry-overlay>p:not(:first-child) { font-size: .9375rem; }
.scene-link { font-size: .9375rem; min-height: 44px; }
.multimodal-section { min-height: 650px; }
.multimodal-copy h2 { font-size: clamp(2.5rem,4vw,3.75rem); max-inline-size: 8em; }
.multimodal-copy>p:not(.eyebrow) { font-size: 1.0625rem; line-height: 1.8; max-inline-size: 27em; }
.mode-route { margin-top: 72px; }

/* Scenario storytelling. */
.practice-section { background: #fff; }
.practice-heading-description { font-size: 1.0625rem; max-inline-size: 25em; }
.practice-shell { background: var(--paper); border: 0; border-radius: 32px; overflow: hidden; }
.practice-tabs { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); padding: 14px; gap: 10px; background: #e8e8ed66; border-bottom: 0; }
.practice-tabs button { display: flex; align-items: center; justify-content: center; gap: 12px; padding: 17px 20px; min-height: 54px; border: 0; border-radius: 999px; color: var(--muted); font-size: .75rem; }
.practice-tabs button>span { font-size: 1rem; font-weight: 500; }
.practice-tabs button[aria-selected=true] { color: var(--ink); background: #fff; box-shadow: 0 2px 7px #00000008; }
.practice-tabs button:hover { color: var(--blue); }
.practice-panel { padding: 50px; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.practice-caption { font-size: .75rem; color: var(--muted); }
.practice-story h3 { font-size: 2rem; font-weight: 600; line-height: 1.3; letter-spacing: -.025em; margin-top: 18px; }
.practice-story>p:not(.practice-caption) { font-size: 1rem; color: var(--muted); line-height: 1.8; margin-top: 20px; }
.practice-story .text-link { font-size: .9375rem; margin-top: 18px; }
.practice-chain { border-left: 1px solid #d2d2d7; padding-left: 24px; }
.practice-chain>div { position: relative; padding: 19px 20px; background: #fff; border-radius: 18px; }
.practice-chain>div+div { margin-top: 14px; }
.practice-chain>div:before { content: ''; position: absolute; top: 25px; left: -29px; width: 9px; height: 9px; border: 2px solid var(--paper); border-radius: 99px; background: #86868b; }
.practice-chain span { color: var(--muted); font-size: .6875rem; display: block; }
.practice-chain b { display: block; color: var(--ink); font-size: .875rem; font-weight: 500; margin-top: 8px; line-height: 1.8; }
.delivery-steps { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 30px; margin-top: 48px; }
.delivery-steps article { border-top: 1px solid #d2d2d7; padding-top: 22px; }
.delivery-steps article>span { color: var(--muted); font-size: .75rem; }
.delivery-steps h3 { font-size: 1.125rem; font-weight: 600; margin-top: 10px; }
.delivery-steps p { font-size: .875rem; color: var(--muted); line-height: 1.75; margin-top: 9px; }
.practice-note { margin-top: 30px; color: var(--muted); font-size: .75rem; }

/* Customer stories and company. */
.customers { background: var(--paper); }
.customers-intro { font-size: 1.0625rem; line-height: 1.8; max-inline-size: 43em; }
.case-grid { gap: 24px; }
.case-card { border-radius: 28px; padding: 30px; min-height: 235px; background: #fff; }
.case-card:hover { transform: translateY(-3px); box-shadow: 0 12px 30px #00000009; }
.case-card strong { margin-top: 30px; font-size: 1.625rem; font-weight: 600; }
.case-type,.case-topic { font-size: .8125rem; }
.case-global { background: #e8edf4; }
.case-global strong { margin-top: 23px; }
.case-arrow { display: grid; place-items: center; width: 30px; height: 30px; padding: 0; margin-top: 20px; border-radius: 50%; background: #f5f5f7; font-size: 1rem; color: #515154; }
.case-note { font-size: .75rem; }
.about-layout { gap: 72px; }
.about h2 { max-inline-size: 10em; }
.about-copy { padding-top: 34px; }
.about-copy>p { font-size: 1.0625rem; line-height: 1.8; }
.about-english { color: var(--muted); margin-top: 28px; font-size: .875rem; }
.source-details { border-top: 1px solid #d2d2d7; padding-top: 15px; margin-top: 20px; color: var(--muted); font-size: .75rem; }
.source-details summary { cursor: pointer; padding-block: 8px; }
.source-details>div { display: flex; flex-direction: column; gap: 12px; padding-top: 15px; }
.source-details a { color: var(--blue); }

/* Clear next step and direct contact methods. */
.contact { background: var(--paper); text-align: center; }
.contact-layout { display: flex; flex-direction: column; gap: 48px; align-items: center; }
.contact-pitch { max-width: 760px; }
.contact .contact-pitch h2 { font-size: clamp(2.5rem,4.8vw,4rem); margin-inline: auto; line-height: 1.15; letter-spacing: -.04em; }
.contact-pitch>p:not(.eyebrow) { font-size: 1.125rem; color: var(--muted); margin-top: 26px; }
.contact .button { margin-top: 28px; }
.contact-hub { display: grid; grid-template-columns: minmax(0,1fr) 236px; gap: 64px; align-items: center; width: min(100%,880px); padding: 44px 50px; border: 0; border-radius: 30px; background: #fff; text-align: left; }
.contact-method { display: flex; flex-direction: column; gap: 8px; align-items: flex-start; }
.contact-method+.contact-method { margin-top: 25px; }
.contact-method>span { font-size: .8125rem; color: var(--muted); }
.contact-method>a { font-size: 1.4375rem; font-weight: 500; color: var(--ink); min-height: 40px; overflow-wrap: anywhere; }
.headquarters { border-top: 1px solid #e5e5e7; padding-top: 24px; margin-top: 28px; font-size: .875rem; color: var(--muted); }
.headquarters b { font-weight: 500; }
.headquarters address { margin-top: 10px; font-size: .8125rem; line-height: 1.9; }
.wechat-card { margin: 0; padding: 14px; border: 0; border-radius: 18px; background: #f5f5f7; text-align: center; }
.wechat-card>img { display: block; width: 100%; height: auto; aspect-ratio: 851 / 842; object-fit: contain; border-radius: 8px; }
.wechat-card figcaption { display: flex; flex-direction: column; gap: 5px; margin-top: 13px; }
.wechat-card b { color: var(--ink); font-size: .8125rem; font-weight: 500; }
.wechat-card figcaption>span { color: var(--muted); font-size: .6875rem; }
.wechat-card>a { display: inline-flex; align-items: center; justify-content: center; gap: 7px; min-height: 40px; color: var(--blue); font-size: .75rem; margin-top: 5px; }
.site-footer { background: #f5f5f7; }
.footer-top { gap: 24px; padding-block: 30px; border-top-color: #d2d2d7; }
.footer-top>p { font-size: .75rem; }
.footer-links { grid-template-columns: 1fr 1fr 1fr 1.5fr; gap: 36px; }
.footer-links>div { font-size: .75rem; gap: 12px; }
.footer-contact address { max-width: 23em; font-size: .75rem; line-height: 1.8; }
.footer-contact a[href^=mailto] { color: var(--blue); overflow-wrap: anywhere; }
.footer-bottom { font-size: .6875rem; }

/* Native dialogs retain focus and remain dismissible while scrolled. */
dialog { border-radius: 28px; box-shadow: 0 30px 100px #0003; }
dialog::backdrop { background: #0006; backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.contact-dialog { width: 800px; border: 0; }
.dialog-toolbar { position: sticky; top: 0; height: 0; z-index: 5; }
.contact-dialog .dialog-content { padding: 40px; }
.contact-dialog .dialog-content h2 { font-size: 2.25rem; letter-spacing: -.035em; }
.contact-dialog .dialog-content .eyebrow { font-size: .75rem; margin-bottom: 14px; }
.contact-dialog .dialog-intro { font-size: .875rem; line-height: 1.75; margin-top: 16px; }
.contact-dialog-grid { display: grid; grid-template-columns: minmax(0,1fr) 220px; gap: 36px; align-items: start; margin-top: 30px; }
.contact-dialog .interest-label { margin-top: 0; font-size: .75rem; }
.contact-dialog select { font-size: .9375rem; min-height: 48px; border-radius: 12px; }
.contact-dialog .email-button { margin-top: 16px; font-size: .9375rem; min-height: 48px; border-radius: 999px; }
.dialog-channel { margin-top: 22px; border-top: 1px solid #e5e5e7; padding-top: 16px; }
.dialog-channel>span { color: var(--muted); font-size: .75rem; }
.dialog-channel>div { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.dialog-channel a { color: var(--ink); font-size: 1rem; font-weight: 500; line-height: 1.8; overflow-wrap: anywhere; }
.dialog-channel .copy-button { min-height: 38px; padding: 7px 0; font-size: .75rem; }
.channel-status { color: var(--muted); font-size: .75rem; }
.channel-status:empty { display: none; }
.contact-dialog .contact-status { margin-top: 14px; font-size: .75rem; }
.dialog-address { border-top: 1px solid #e5e5e7; padding-top: 22px; margin-top: 28px; color: var(--muted); font-size: .8125rem; line-height: 1.8; }
.dialog-address b { color: #515154; font-weight: 500; }
.dialog-address address { margin-top: 7px; }
.dialog-close,.contact-dialog .dialog-close { width: 40px; height: 40px; top: 16px; right: 16px; background: #e8e8ed; color: #6e6e73; font-size: 1.5rem; }
.dialog-close:hover,.contact-dialog .dialog-close:hover { background: #dcdce2; }
.detail-dialog .dialog-content { padding: 54px 44px 36px; }
.detail-block p,.detail-lead { font-size: 1rem; line-height: 1.8; }

@media (min-width:1600px) {
  .wrap { width: min(1200px,calc(100% - 144px)); }
  .hero-system { width: 1040px; }
}
@media (max-width:1100px) {
  .nav-links { position: absolute; inset: 100% -30px auto; display: none; flex-direction: column; align-items: stretch; gap: 2px; margin: 0; padding: 18px 24px 26px; background: #fff; border-bottom: 1px solid #e5e5e7; border-radius: 0 0 20px 20px; box-shadow: 0 15px 25px #00000008; max-height: calc(100dvh - 80px); overflow-y: auto; }
  .nav-links.open { display: flex; }
  .nav-links a { justify-content: flex-start; min-height: 50px; padding-inline: 16px; font-size: 1rem; border-radius: 10px; }
  .nav-links a:hover,.nav-links a[aria-current] { background: #f5f5f7; }
  .nav-links a[aria-current]:after { display: none; }
  .nav-actions { margin-inline-start: auto; }
  .menu-toggle { display: block; min-width: 44px; height: 44px; }
  .foundation-card { padding-inline: 28px; }
  .foundation-card h3 { font-size: 2.125rem; }
  .product-panel { padding: 44px; gap: 30px; }
  .product-copy h3 { font-size: 2.125rem; }
  .fde-values { gap: 18px; }
  .fde-values article { padding: 28px 24px; }
  .fde-values h3 { font-size: 1.3125rem; }
  .about-layout { gap: 40px; }
}
@media (max-width:900px) {
  .wrap { width: calc(100% - 64px); }
  .section,.industries { padding-block: 96px; }
  .section-heading { gap: 26px; margin-bottom: 40px; }
  .fde-definition { max-width: 44em; }
  .fde-values { grid-template-columns: 1fr; gap: 20px; }
  .fde-values article { display: grid; grid-template-columns: 50px 1fr; column-gap: 22px; padding: 30px; }
  .value-icon { grid-row: 1 / 4; margin: 0; }
  .fde-values h3 { font-size: 1.5rem; margin-top: 5px; }
  .fde-values p { grid-column: 2; margin-top: 13px; }
  .foundation-grid { margin-top: 40px; }
  .foundation-card>p:not(.foundation-role) { min-height: 10.8em; }
  .product-panel { grid-template-columns: 1fr; padding: 42px; }
  .product-copy h3 { max-inline-size: 14em; font-size: 2.25rem; }
  .product-visual { width: min(100%,560px); justify-self: center; }
  .industry-layout { grid-template-columns: 1fr; gap: 26px; }
  .industry-options { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 8px; }
  .industry-option,.industry-option:first-child { padding: 15px 9px; border: 1px solid #e5e5e7; border-radius: 999px; text-align: center; }
  .industry-label { justify-content: center; font-size: .9375rem; }
  .industry-label>span:last-child,.industry-summary { display: none; }
  .industry-scene { min-height: 460px; }
  .practice-panel { padding: 36px; gap: 32px; }
  .practice-story h3 { font-size: 1.625rem; }
  .footer-links { grid-template-columns: 1fr 1fr; gap: 34px; }
}
@media (max-width:700px) {
  :root { --nav-height: 64px; }
  .wrap { width: calc(100% - 44px); }
  .section,.industries { padding-block: 76px; }
  .nav { gap: 12px; padding-block: 0; }
  .nav-links { left: -22px; right: -22px; }
  .brand { gap: 8px; }
  .brand img.brand-logo,.footer-top .brand img.brand-logo { width: 30px; }
  .brand-copy b { font-size: .9375rem; }
  .brand-copy small { font-size: .5625rem; }
  .nav-actions { gap: 4px; }
  .button-small { min-height: 34px; padding: 6px 12px; font-size: .6875rem; }
  .announcement { font-size: .6875rem; min-height: 42px; padding-inline: 16px; gap: 5px 9px; }
  .announcement a { font-size: .6875rem; }
  .fde-hero { padding-top: 48px; }
  .fde-hero .eyebrow { font-size: .8125rem; margin-bottom: 18px; }
  .fde-hero h1 { font-size: clamp(2.25rem,8.7vw,3.75rem); line-height: 1.16; letter-spacing: -.045em; }
  .hero-subtitle { font-size: 1.125rem; margin-top: 23px; line-height: 1.55; }
  .fde-hero-description { max-inline-size: 25em; font-size: .875rem; line-height: 1.75; margin-top: 10px; }
  .fde-hero .hero-actions { margin-top: 24px; gap: 12px; }
  .fde-hero .hero-actions .button { font-size: .875rem; padding: 10px 22px; min-height: 44px; }
  .hero-system { width: calc(100% + 16px); margin-top: 24px; }
  .hero-foundations { gap: 22px; margin-top: 10px; padding-bottom: 14px; }
  .hero-foundations>div>span { font-size: .625rem; }
  .hero-foundations b { font-size: 1rem; }
  .hero-foundations small { font-size: .625rem; }
  .hero-metrics { gap: 12px; margin-top: 28px; padding-block: 24px 30px; }
  .hero-metrics b { font-size: .9375rem; }
  .hero-metrics span { font-size: .625rem; }
  h2,.fde-section h2 { font-size: clamp(1.875rem,6.5vw,2.5rem); }
  .eyebrow { font-size: .75rem; margin-bottom: 17px; }
  .heading-description,.fde-definition { font-size: 1rem; line-height: 1.8; max-inline-size: 34em; }
  .desktop-break { display: none; }
  .fde-values { margin-top: 30px; gap: 18px; }
  .fde-values article { padding: 27px 24px; grid-template-columns: 36px 1fr; gap: 0 15px; border-radius: 24px; }
  .value-icon { width: 36px; height: 36px; font-size: 28px; }
  .value-label { font-size: .6875rem; }
  .fde-values h3 { font-size: 1.3125rem; }
  .fde-values p { font-size: .9375rem; line-height: 1.8; }
  .fde-result { margin-top: 30px; gap: 10px; justify-content: flex-start; font-size: .8125rem; }
  .foundation-heading h2 { font-size: 2rem; }
  .foundation-heading h2 span { margin-top: 10px; }
  .foundation-heading>p:last-child { font-size: 1rem; margin-top: 24px; }
  .foundation-grid { grid-template-columns: 1fr; gap: 20px; margin-top: 34px; }
  .foundation-card { border-radius: 26px; padding: 28px 28px 0; }
  .foundation-card h3 { font-size: 2.125rem; margin-top: 25px; }
  .foundation-role { font-size: 1.0625rem; }
  .foundation-card>p:not(.foundation-role) { min-height: 0; font-size: .9375rem; line-height: 1.8; margin-top: 20px; }
  .foundation-capabilities { margin-top: 22px; gap: 7px; }
  .foundation-capabilities span { font-size: .6875rem; padding: 5px 10px; }
  .foundation-summary { font-size: .75rem; padding-block: 20px; margin-top: 25px; }
  .business-loop { margin-top: 34px; }
  .business-loop ol { grid-template-columns: 1fr; gap: 0; }
  .business-loop li { padding-block: 15px; gap: 15px; font-size: .875rem; }
  .foundation-note { font-size: .6875rem; margin-top: 22px; }
  .product-tabs { width: 100%; border-radius: 22px; margin-bottom: 26px; grid-template-columns: repeat(2,minmax(0,1fr)); }
  .product-tabs button { min-height: 68px; padding: 12px 8px; border-radius: 18px; }
  .product-panel { padding: 30px 26px; gap: 35px; border-radius: 26px; }
  .product-copy h3 { font-size: 2rem; max-inline-size: 11em; }
  .product-description { font-size: 1rem; line-height: 1.8; }
  .tags { margin-top: 22px; }
  .product-visual { padding-inline: 16px; border-radius: 20px; }
  .product-bottom { margin-top: 25px; }
  .industry-options { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .industry-label { font-size: .9375rem; }
  .industry-option,.industry-option:first-child { padding: 14px 12px; }
  .industry-scene { min-height: 420px; border-radius: 26px; }
  .industry-overlay { padding: 27px; }
  .industry-overlay h3 { font-size: 2rem; max-inline-size: 9em; }
  .industry-overlay>p:not(:first-child) { font-size: .875rem; }
  .multimodal-section { min-height: 600px; }
  .multimodal-copy h2 { font-size: 2.5rem; max-inline-size: 6em; }
  .multimodal-copy>p:not(.eyebrow) { font-size: 1rem; max-inline-size: 24em; }
  .mode-route { margin-top: 45px; }
  .practice-heading-description { font-size: 1rem; }
  .practice-shell { border-radius: 26px; }
  .practice-tabs { padding: 8px; gap: 4px; }
  .practice-tabs button { gap: 4px; padding: 13px 5px; min-height: 50px; font-size: .625rem; }
  .practice-tabs button>span { font-size: .8125rem; }
  .practice-panel { padding: 30px 26px; grid-template-columns: 1fr; gap: 30px; }
  .practice-caption { font-size: .6875rem; }
  .practice-story h3 { font-size: 1.75rem; margin-top: 17px; }
  .practice-story>p:not(.practice-caption) { font-size: 1rem; margin-top: 17px; }
  .practice-chain { padding-left: 18px; }
  .practice-chain>div:before { left: -23px; }
  .practice-chain>div { padding: 18px; border-radius: 16px; }
  .practice-chain b { font-size: .8125rem; }
  .delivery-steps { grid-template-columns: 1fr 1fr; gap: 28px 22px; margin-top: 34px; }
  .delivery-steps h3 { font-size: 1rem; }
  .delivery-steps p { font-size: .8125rem; }
  .practice-note { font-size: .6875rem; margin-top: 27px; }
  .case-grid { gap: 18px; }
  .case-card { min-height: 220px; padding: 28px; border-radius: 26px; }
  .case-card strong { font-size: 1.5rem; }
  .customers-intro { font-size: 1rem; line-height: 1.8; }
  .about-layout { gap: 24px; }
  .about-copy { padding-top: 0; }
  .about-copy>p { font-size: 1rem; }
  .about-english { font-size: .8125rem; margin-top: 22px; }
  .contact-layout { gap: 32px; }
  .contact .contact-pitch h2 { font-size: 2.75rem; }
  .contact-pitch>p:not(.eyebrow) { font-size: 1rem; margin-top: 22px; }
  .contact-hub { grid-template-columns: 1fr; gap: 28px; padding: 32px 28px; border-radius: 26px; }
  .contact-method>a { font-size: 1.25rem; }
  .headquarters { font-size: .8125rem; }
  .headquarters address { font-size: .75rem; }
  .contact-hub .wechat-card { width: min(260px,100%); justify-self: center; }
  .footer-top { flex-wrap: wrap; gap: 20px; }
  .footer-top>p { width: 100%; order: 3; margin: 0; }
  .footer-top .back-top { font-size: .6875rem; }
  .footer-links { gap: 28px 24px; }
  .footer-contact { grid-column: 1 / -1; }
  .footer-bottom { align-items: flex-start; flex-direction: column; gap: 8px; }
  .contact-dialog .dialog-content { padding: 54px 25px 28px; }
  .contact-dialog .dialog-content h2 { font-size: 1.75rem; }
  .contact-dialog .dialog-intro { font-size: .875rem; }
  .contact-dialog-grid { grid-template-columns: 1fr; gap: 28px; margin-top: 25px; }
  .contact-dialog .wechat-card { width: min(260px,100%); justify-self: center; }
  .dialog-channel a { font-size: .9375rem; }
  .dialog-address { font-size: .75rem; }
  .detail-dialog .dialog-content { padding: 58px 27px 30px; }
}
@media (max-width:360px) {
  .wrap { width: calc(100% - 36px); }
  .nav-links { left: -18px; right: -18px; }
  .nav-actions .button-small { display: none; }
  .brand-copy small { font-size: .5rem; }
  .hero-subtitle { font-size: 1rem; }
  .hero-foundations { gap: 16px; }
  .hero-foundations b { font-size: .9375rem; }
  .hero-metrics span { font-size: .5625rem; }
  .fde-values article { padding: 24px 21px; grid-template-columns: 1fr; }
  .value-icon { grid-row: auto; margin-bottom: 18px; }
  .fde-values p { grid-column: auto; }
  .practice-tabs button { font-size: .5625rem; gap: 3px; }
  .practice-tabs button>span { font-size: .75rem; }
  .practice-panel,.product-panel { padding-inline: 23px; }
}
@media (prefers-reduced-motion:reduce) {
  html { scroll-behavior: auto; }
  *,*::before,*::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}