/* About SUNWINON: large manufacturing imagery, clear typography and quiet motion. */
body.about-brand-page { --about-nav-height: 64px; background: #fff; }
.ab-main { --ab-blue: #0369ae; --ab-ink: #18212b; --ab-muted: #697681; --ab-surface: #F5F5F7; color: var(--ab-ink); font-family: var(--site-title-font,"微软雅黑",Arial,sans-serif); }
.ab-main * { box-sizing: border-box; }
.ab-main :is(h1,h2,h3,p,figure,ul,dl,dd) { margin: 0; }
.ab-container { width: 88%; max-width: 1360px; margin: 0 auto; }
.ab-main .ab-container { margin-left: auto; margin-right: auto; }
.ab-section { padding: clamp(88px,8vw,136px) 0; scroll-margin-top: calc(var(--site-header-height,65px) + var(--about-nav-height,64px) + 18px); }
.ab-heading { color: var(--ab-ink); font-size: clamp(30px,2.8vw,42px); line-height: 1.45; text-wrap: balance; }
.ab-main :is(a,button,[tabindex]):focus-visible { outline: 2px solid #258fda; outline-offset: 5px; }

.ab-hero { position: relative; isolation: isolate; padding-top: var(--site-header-height,65px); background: #edf0f3; }
.ab-hero-frame { position: relative; height: clamp(340px,30vw,560px); overflow: hidden; background: #edf0f3; }
.ab-hero-image { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 62%; }
.ab-hero-copy { position: absolute; top: 38px; left: 50%; z-index: 1; transform: translateX(-50%); color: #273746; }
.ab-hero h1 { color: #273746; font-size: clamp(32px,3vw,52px); line-height: 1.4; }

.ab-section-nav { position: sticky; top: var(--site-header-height,65px); z-index: 8; border-bottom: 1px solid #e8ebef; background: rgba(255,255,255,.94); -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px); }
.ab-section-nav ul { display: flex; align-items: center; justify-content: center; gap: clamp(28px,4vw,70px); min-height: 64px; padding: 0; list-style: none; }
.ab-section-nav li { flex: 0 0 auto; }
.ab-section-nav a { position: relative; display: flex; align-items: center; min-height: 64px; color: #64717d; font-size: 15px; line-height: 1.5; text-decoration: none; transition: color .3s; }
.ab-section-nav a::after { content: ''; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: var(--ab-blue); transform: scaleX(0); transition: transform .4s cubic-bezier(.2,.7,.2,1); }
.ab-section-nav a:is(.active,:hover,:focus-visible) { color: var(--ab-blue); }
.ab-section-nav a.active::after { transform: scaleX(1); }

.ab-company { padding-bottom: 88px; }
.ab-company-intro { display: grid; grid-template-columns: minmax(0,.9fr) minmax(0,1.2fr); gap: clamp(46px,6vw,110px); align-items: start; }
.ab-company-intro h2 { max-width: 540px; }
.ab-company-copy { color: #54616c; font-size: 16px; line-height: 1.95; text-wrap: pretty; }
.ab-company-copy p + p { margin-top: 20px; }
.ab-company-more { margin-top: 30px; }
.ab-campus { width: 94%; max-width: 1800px; margin: 76px auto 0 !important; aspect-ratio: 2 / 1; overflow: hidden; border-radius: 28px; background: #e8f0f7; }
.ab-campus img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: center top; }
.ab-metrics { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); padding-top: 68px; }
.ab-metrics > div { display: flex; flex-direction: column; gap: 18px; min-width: 0; padding: 0 20px; text-align: center; }
.ab-metrics > div + div { border-left: 1px solid #e6e9ed; }
.ab-metric-value { order: -1; color: var(--ab-blue); font-family: Arial,"微软雅黑",sans-serif; font-size: clamp(44px,4.6vw,76px); font-weight: 600; line-height: 1.1; letter-spacing: -.05em; white-space: nowrap; }
.ab-metric-value small { margin-left: 4px; font-size: .37em; font-weight: 400; letter-spacing: 0; }
.ab-metrics dt { color: #77818b; font-size: 15px; line-height: 1.8; }

.about-brand-page .about-company-dialog { position: fixed; inset: 0; box-sizing: border-box; width: min(920px,92vw); max-width: 92vw; max-height: 86vh; max-height: 86dvh; margin: auto; padding: 0; border: 0; border-radius: 26px; background: #fff; color: #36434f; box-shadow: 0 28px 100px rgba(0,0,0,.2); }
.about-brand-page .about-company-dialog[open] { display: flex; flex-direction: column; }
.about-brand-page .about-company-dialog::backdrop { background: rgba(3,13,26,.62); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
.about-brand-page .about-company-dialog.is-fallback { z-index: 10000; box-shadow: 0 0 0 100vmax rgba(3,13,26,.62); }
.about-brand-page .about-company-dialog__header { display: flex; flex: 0 0 auto; align-items: center; justify-content: space-between; gap: 24px; padding: 28px 40px 22px; border-bottom: 1px solid #edf0f3; }
.about-brand-page .about-company-dialog__header h2 { margin: 0; color: #17212c; font-size: 28px; line-height: 1.4; }
.about-brand-page .about-company-dialog__close { display: grid; place-items: center; width: 42px; height: 42px; padding: 10px; border: 0; border-radius: 50%; background: #F5F5F7; color: #475460; cursor: pointer; }
.about-brand-page .about-company-dialog__close svg { width: 22px; height: 22px; }
.about-brand-page .about-company-dialog__close:hover { color: #0369ae; }
.about-brand-page .about-company-dialog__body { min-height: 0; overflow-y: auto; overscroll-behavior: contain; padding: 14px 40px 34px; font-size: 16px; line-height: 1.95; }
.about-brand-page .about-company-dialog__body p { margin: 18px 0; }

.ab-industries { position: relative; isolation: isolate; overflow: hidden; background: var(--ab-surface); text-align: center; }
.ab-industries > .ab-container { position: relative; z-index: 1; display: flex; flex-direction: column; align-items: center; justify-content: space-between; gap: 280px; min-height: 440px; }
.ab-industry-map { position: absolute; top: 50%; left: 50%; z-index: 0; display: block; width: 92%; max-width: 1400px; height: auto; transform: translate(-50%,-50%); pointer-events: none; }
.ab-industry-items { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); gap: 16px; width: 100%; padding: 0; list-style: none; }
.ab-industry-items > li { min-width: 0; overflow: hidden; border: 0; border-radius: 16px; background: #0369AE; color: #fff; transition: transform .5s cubic-bezier(.2,.7,.2,1),box-shadow .5s; }
.ab-industry-items :is(a,li > div) { display: flex; flex-direction: column; gap: 16px; align-items: center; justify-content: center; min-height: 172px; height: 100%; padding: 26px 16px; color: inherit; text-decoration: none; }
.ab-business-icon { display: block; flex: 0 0 auto; width: 62px; height: 62px; color: #fff; }
.ab-industry-items h3 { --site-title-weight: 700; margin: 0; color: inherit; font-size: 20px; line-height: 1.6; }
.ab-industry-items a:is(:hover,:focus-visible) h3 { color: inherit; }

.ab-history { padding-bottom: 92px; overflow: hidden; background: radial-gradient(ellipse at 85% 0,#113b60 0,transparent 55%),#071522; color: #fff; }
.ab-section-heading { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-bottom: 52px; }
.ab-history .ab-heading { color: #fff; }
.ab-history-controls { display: none; gap: 12px; }
.ab-interactive .ab-history-controls { display: flex; }
.ab-round-control { display: grid; place-items: center; width: 46px; height: 46px; padding: 12px; border: 0; border-radius: 50%; background: linear-gradient(110deg,#0478bd,#6960df); color: #fff; cursor: pointer; transition: opacity .3s,filter .3s; }
.ab-round-control:disabled { opacity: .3; cursor: default; }
.ab-round-control svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.5; }
.ab-history-prev svg { transform: rotate(180deg); }
.ab-history-track { --ab-story-width: min(480px,84vw); position: relative; display: grid; grid-auto-flow: column; grid-auto-columns: var(--ab-story-width); gap: 28px; width: 100%; padding: 12px max(24px,6vw) 12px; overflow-x: auto; overscroll-behavior-x: contain; scroll-snap-type: x mandatory; scrollbar-width: none; }
.ab-history-track::-webkit-scrollbar { display: none; }
.ab-history-card { min-width: 0; min-height: 280px; padding: 36px; border: 1px solid rgba(173,202,227,.16); border-radius: 22px; background: rgba(255,255,255,.035); opacity: .82; scroll-snap-align: center; transition: opacity .5s,border-color .5s,background-color .5s; }
.ab-history-card.is-active,.ab-main:not(.ab-interactive) .ab-history-card:first-child { opacity: 1; border-color: rgba(131,194,241,.65); background: rgba(42,97,144,.17); }
.ab-history-card h3 { margin-bottom: 26px; color: #fff; font-family: Arial,"微软雅黑",sans-serif !important; font-size: 48px; line-height: 1.15; }
.ab-history-card p { color: #dbe6f0; font-size: 18px; line-height: 1.8; }
.ab-history-card .history-review-note { margin-top: 16px; color: #859db2; font-size: 12px; line-height: 1.6; }
.ab-history-years { display: flex; justify-content: center; gap: clamp(12px,2vw,30px); margin-top: 30px; overflow-x: auto; scrollbar-width: none; }
.ab-history-years::-webkit-scrollbar { display: none; }
.ab-history-years button { position: relative; flex: 0 0 auto; padding: 16px 5px; border: 0; border-bottom: 2px solid transparent; background: transparent; color: #8fa6ba; font-family: inherit; font-size: 16px; line-height: 1.6; cursor: pointer; transition: color .3s,border-color .3s; }
.ab-history-years button[aria-pressed="true"] { border-bottom-color: #7fc8ff; color: #fff; }

.ab-culture-layout { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: clamp(40px,6vw,100px); align-items: center; margin-top: 54px; }
.ab-culture-feature { position: relative; isolation: isolate; min-width: 0; min-height: 620px; overflow: hidden; border-radius: 26px; background: #183851; }
.ab-culture-feature img { position: absolute; z-index: -2; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 55% center; }
.ab-culture-feature::after { content: ''; position: absolute; z-index: -1; inset: 0; background: linear-gradient(180deg,rgba(5,22,38,.04),rgba(5,22,38,.72)); }
.ab-culture-feature figcaption { position: absolute; left: 42px; right: 42px; bottom: 48px; color: #fff; }
.ab-culture-feature [data-culture-label] { display: block; margin-bottom: 18px; color: #94cdf3; font-size: 20px; font-weight: 600; }
.ab-culture-feature [data-culture-quote] { font-size: clamp(22px,1.85vw,28px); font-weight: 600; line-height: 1.6; text-wrap: balance; transition: opacity .25s,transform .35s cubic-bezier(.2,.7,.2,1); }
.ab-culture-feature.is-switching [data-culture-quote] { opacity: 0; transform: translateY(5px); }
.ab-culture-choices { display: grid; }
.ab-culture-choice { position: relative; display: block; width: 100%; padding: 30px 0 30px 28px; border: 0; border-bottom: 1px solid #e7ebef; background: transparent; color: inherit; font-family: inherit; text-align: left; cursor: pointer; }
.ab-culture-choice::before { content: ''; position: absolute; left: 0; top: 33px; bottom: 33px; width: 2px; border-radius: 2px; background: #0369ae; transform: scaleY(0); transition: transform .5s cubic-bezier(.2,.7,.2,1); }
.ab-culture-choice[aria-pressed="true"]::before { transform: scaleY(1); }
.ab-culture-label { display: block; margin-bottom: 12px; color: #0369ae; font-size: 22px; font-weight: 600; line-height: 1.6; }
.ab-culture-choice[aria-pressed="true"] .ab-culture-label { color: #0369ae; }
.ab-culture-copy { display: block; color: #25323f; font-size: 20px; line-height: 1.75; text-wrap: pretty; }

.ab-honors { background: var(--ab-surface); }
.ab-certificate-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 24px; margin-top: 52px; }
.ab-certificate { display: grid; grid-template-rows: auto 1fr; min-width: 0; padding: 22px 20px 24px; border: 1px solid #e6eaee; border-radius: 18px; background: #fff; transition: transform .6s cubic-bezier(.2,.7,.2,1),border-color .4s,box-shadow .6s; }
.ab-certificate__preview { position: relative; display: block; aspect-ratio: 500 / 707; }
.ab-certificate__preview img { position: absolute; inset: 8px 8px 30px; display: block; width: calc(100% - 16px); height: calc(100% - 38px); object-fit: contain; transition: transform .7s cubic-bezier(.2,.7,.2,1); }
.ab-certificate__status { position: absolute; left: 0; right: 0; bottom: 8px; color: #919ca6; font-size: 11px; line-height: 1.6; text-align: center; }
.ab-certificate figcaption { padding-top: 16px; border-top: 1px solid #eef1f4; color: #394957; font-size: 16px; line-height: 1.8; text-align: center; }

.ab-partners-intro { max-width: 1020px; text-align: center; }
.ab-partners-scene { margin-top: 48px !important; height: auto; overflow: hidden; border-radius: 26px; background: var(--ab-surface); }
.ab-partners-scene img { display: block; width: 100%; max-width: 100%; height: auto; object-fit: contain; object-position: center; }
.ab-partner-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); margin-top: 52px !important; padding: 0; list-style: none; }
.ab-partner-logo { display: flex; align-items: center; justify-content: center; min-width: 0; min-height: 126px; padding: 28px; border-bottom: 1px solid #edf0f3; }
.ab-partner-logo img { display: block; max-width: 142px; width: 100%; height: 48px; object-fit: contain; }
.ab-partner-logo.partner-logo--mark img { max-width: 58px; height: 58px; }
.ab-partner-logo.partner-logo--huawei img { max-width: 110px; height: 58px; }

.ab-reveal-ready [data-ab-reveal] { opacity: 0; transform: translate3d(0,20px,0); transition: opacity 1.05s ease,transform 1.25s cubic-bezier(.2,.7,.2,1); transition-delay: var(--ab-delay,0ms); }
.ab-reveal-ready [data-ab-reveal].is-revealed { opacity: 1; transform: none; }
@media (hover: hover) and (pointer: fine) { .ab-round-control:not(:disabled):hover { filter: brightness(1.12); } .ab-industry-items > li:has(a):hover { transform: translateY(-4px); box-shadow: 0 12px 24px rgba(31,72,106,.12); } .ab-certificate:hover { transform: translateY(-4px); border-color: #c6dbe9; box-shadow: 0 14px 30px rgba(31,72,106,.09); } .ab-certificate:hover .ab-certificate__preview img { transform: scale(1.025); } }
@media (max-width: 1100px) {
  .ab-company-intro { grid-template-columns: minmax(0,1fr); gap: 30px; }
  .ab-company-intro h2 { max-width: 800px; }
  .ab-company-copy { max-width: 850px; }
  .ab-culture-layout { gap: 36px; }
  .ab-culture-feature { min-height: 580px; }
  .ab-culture-feature figcaption { left: 28px; right: 28px; bottom: 36px; }
  .ab-culture-copy { font-size: 20px; }
  .ab-certificate-grid { gap: 18px; }
  .ab-certificate { padding: 18px 14px 22px; }
}
@media (max-width: 900px) {
  .ab-section-nav > div { width: 100%; overflow-x: auto; scrollbar-width: none; }
  .ab-section-nav ul { justify-content: flex-start; width: max-content; min-width: 100%; gap: 30px; padding: 0 6vw; }
  .ab-culture-layout { grid-template-columns: minmax(0,1fr); }
  .ab-culture-feature { min-height: 480px; }
  .ab-culture-feature [data-culture-quote] { max-width: 640px; font-size: 26px; }
  .ab-culture-choice { padding: 24px 0 24px 24px; }
  .ab-certificate-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .ab-partner-logo { padding: 20px; }
}
@media (max-width: 768px) { .ab-hero-frame { height: 340px; } .ab-hero-copy { top: 18px; transform: translateX(-50%); } .ab-hero h1 { font-size: 28px; } }
@media (max-width: 600px) {
  .ab-container { width: 90%; }
  .ab-section { padding: 64px 0; }
  .ab-heading { font-size: 28px; line-height: 1.45; }
  .ab-hero-frame { height: 340px; }
  .ab-hero-copy { top: 18px; transform: translateX(-50%); }
  .ab-hero h1 { font-size: 28px; }
  .ab-section-nav ul { min-height: 56px; gap: 28px; padding: 0 5vw; }
  .ab-section-nav a { min-height: 56px; font-size: 14px; }
  .ab-company-copy { font-size: 16px; line-height: 1.95; }
  .ab-campus { width: 94%; margin-top: 42px !important; aspect-ratio: 1.35 / 1; border-radius: 18px; }
  .ab-campus img { object-position: 68% top; }
  .ab-metrics { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 32px 0; padding-top: 44px; }
  .ab-metrics > div { gap: 12px; padding: 0 10px; }
  .ab-metrics > div:nth-child(3) { border-left: 0; }
  .ab-metric-value { font-size: 38px; }
  .ab-metrics dt { font-size: 12px; }
  .about-brand-page .about-company-dialog { width: 94vw; max-width: 94vw; border-radius: 20px; }
  .about-brand-page .about-company-dialog__header { padding: 20px 22px 16px; }
  .about-brand-page .about-company-dialog__header h2 { font-size: 24px; }
  .about-brand-page .about-company-dialog__body { padding: 8px 22px 24px; font-size: 15px; }
  .ab-industries > .ab-container { min-height: 420px; gap: 210px; }
  .ab-industry-map { width: 105%; top: 45%; }
  .ab-industry-items { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 12px; }
  .ab-industry-items :is(a,li > div) { min-height: 144px; gap: 12px; padding: 22px 14px; }
  .ab-business-icon { width: 54px; height: 54px; }
  .ab-industry-items > li:last-child { grid-column: 1 / -1; }
  .ab-industry-items > li:last-child > div { min-height: 144px; }
  .ab-industry-items h3 { font-size: 18px; }
  .ab-section-heading { margin-bottom: 30px; }
  .ab-round-control { width: 40px; height: 40px; padding: 10px; }
  .ab-history-track { gap: 18px; }
  .ab-history-card { min-height: 260px; padding: 28px; border-radius: 20px; }
  .ab-history-card h3 { margin-bottom: 24px; font-size: 40px; }
  .ab-history-card p { font-size: 18px; }
  .ab-history-years { justify-content: flex-start; gap: 20px; margin-top: 18px; }
  .ab-history-years button { font-size: 14px; }
  .ab-culture-layout { margin-top: 34px; gap: 22px; }
  .ab-culture-feature { min-height: 440px; border-radius: 20px; }
  .ab-culture-feature [data-culture-quote] { font-size: 22px; }
  .ab-culture-label { font-size: 20px; }
  .ab-culture-copy { font-size: 18px; }
  .ab-certificate-grid { margin-top: 34px; gap: 14px; }
  .ab-certificate { padding: 14px 10px 18px; border-radius: 14px; }
  .ab-certificate__preview img { inset: 4px 3px 28px; width: calc(100% - 6px); height: calc(100% - 32px); }
  .ab-certificate__status { bottom: 8px; font-size: 10px; }
  .ab-certificate figcaption { padding-top: 12px; font-size: 13px; }
  .ab-partners-scene { margin-top: 34px !important; border-radius: 18px; }
  .ab-partner-grid { grid-template-columns: repeat(2,minmax(0,1fr)); margin-top: 30px !important; }
  .ab-partner-logo { min-height: 108px; padding: 24px; }
  .ab-partner-logo img { max-width: 120px; height: 42px; }
}
@media (prefers-reduced-motion: reduce) { .ab-main *,.ab-main *::after,.ab-main *::before { animation: none !important; transition: none !important; scroll-behavior: auto !important; } .ab-reveal-ready [data-ab-reveal] { opacity: 1; transform: none; } }
@media print { .ab-section-nav,.ab-history-controls,.ab-history-years { display: none !important; } .ab-section { padding: 40px 0; } .ab-hero { height: auto; print-color-adjust: exact; } .ab-hero-frame { height: 340px; } .ab-reveal-ready [data-ab-reveal] { opacity: 1; transform: none; } .ab-history-track { display: block; overflow: visible; padding: 0 6%; } .ab-history-card { opacity: 1; margin-bottom: 24px; break-inside: avoid; } .ab-history,.ab-honors { print-color-adjust: exact; } .ab-certificate { break-inside: avoid; } }