:root {
  --ink: #171826;
  --gold: #b97d43;
  --gold-deep: #8a5527;
  --gold-text: #9a6a3c;
  --muted: #77777d;
  --paper: #fff;
  --page-width: 1200px;
  --sans: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: #fff; font-family: var(--sans); line-height: 1.6; }
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { border: 0; cursor: pointer; }
img { display: block; max-width: 100%; }
.page-width { position: relative; width: min(var(--page-width), calc(100% - 80px)); margin: 0 auto; }
.section-light { background: var(--paper); }
.section-dark { color: #fff; }
.section-gold { color: #fff; }
.section-heading { text-align: center; }
.section-heading h2 { margin: 0; font-size: 44px; font-weight: 700; line-height: 1.25; letter-spacing: .02em; }
.section-kicker { margin: 16px 0 0; color: #beb3a2; font-size: 14px; letter-spacing: .16em; }
.section-watermark { position: absolute; z-index: 0; pointer-events: none; user-select: none; }
.platform, .systems, .news { overflow: hidden; }
.image-button { position: relative; display: inline-flex; }
.image-button img { display: block; }
.image-button span { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 16px; font-weight: 600; letter-spacing: .02em; }
.centered-image { display: flex; justify-content: center; margin: 38px auto 0; }
.stories .centered-image { margin-top: 30px; }

.site-header { position: absolute; z-index: 30; top: 0; left: 0; width: 100%; color: #fff; }
.header-inner { position: relative; display: flex; align-items: center; width: min(1440px, calc(100% - 80px)); height: 72px; margin: 0 auto; gap: 36px; }
.brand { position: absolute; left: 128px; }
.brand img { width: 145px; height: 25px; object-fit: contain; }
.main-nav { display: flex; flex: 1; align-items: stretch; justify-content: center; margin-left: 283px; gap: 31px; height: 72px; }
.main-nav a { position: relative; display: flex; align-items: center; white-space: nowrap; color: rgba(255,255,255,.92); font-size: 14px; }
.main-nav a.mobile-language-link { display: none; }
.main-nav a::after { content: ""; position: absolute; right: 0; bottom: 0; left: 0; height: 2px; background: #fff; transform: scaleX(0); transition: transform .2s ease; }
.main-nav a:hover, .main-nav a.active { color: #fff; }
.main-nav a:hover::after, .main-nav a.active::after { transform: scaleX(1); }
.header-actions { display: flex; flex: 0 0 auto; align-items: center; gap: 10px; margin-right: 46px; }
.header-button, .language-button { position: relative; width: 100px; height: 42px; padding: 0; color: #fff; background: transparent; }
.header-button span { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 13px; }
.language-button { overflow: hidden; }
.language-button::after { content: ""; position: absolute; top: 4px; left: 4px; width: 34px; height: 34px; border-radius: 50%; background: #c9985c; transition: left .25s ease; }
.language-cn, .language-en { position: absolute; top: 0; z-index: 1; height: 100%; display: flex; align-items: center; justify-content: center; transition: color .2s ease; }
.language-cn { left: 0; width: 42px; color: #5b3420; font-size: 12px; }
.language-en { right: 0; width: 58px; color: #fff; font-size: 12px; }
.language-button.is-en::after { left: 54px; }
.language-button.is-en .language-cn { color: #fff; }
.language-button.is-en .language-en { color: #5b3420; }
.header-button img, .language-button img { width: 100px; height: 42px; object-fit: contain; }
.menu-toggle { display: none; width: 42px; height: 42px; padding: 10px; margin-left: auto; background: transparent; }
.menu-toggle span { display: block; height: 1px; margin: 5px 0; background: #fff; }

.hero { position: relative; min-height: 1080px; overflow: hidden; background: #49312c url("/static/site_v2/assets/homepage-preview/banner_bg_1.png") center top / 1920px 1080px no-repeat; }
.hero-slides { position: absolute; z-index: 0; inset: 0; overflow: hidden; background: #49312c; }
.hero-slide { position: absolute; inset: 0; background-position: center top; background-size: cover; background-repeat: no-repeat; transform: translate3d(100%, 0, 0); transition: transform .75s cubic-bezier(.22, .61, .36, 1); will-change: transform; }
.hero-slide::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(30, 17, 12, .18), rgba(30, 17, 12, 0) 64%); pointer-events: none; }
.hero-slide.is-active { transform: translate3d(0, 0, 0); }
.hero-slide.is-exiting { transform: translate3d(-100%, 0, 0); }
.hero-content { position: relative; z-index: 2; width: min(1040px, calc(100% - 120px)); margin: 0 auto; padding-top: 335px; padding-left: 30px; }
.hero h1 { margin: 0; font-size: 88px; font-weight: 700; line-height: 1; letter-spacing: .04em; }
.hero-copy { margin: 20px 0 0; color: rgba(255,255,255,.96); font-size: 22px; line-height: 1.55; letter-spacing: .02em; }
.hero-button { display: inline-flex; align-items: center; justify-content: center; gap: 10px; width: 200px; height: 60px; margin-top: 46px; border: 0; border-radius: 10px; color: #64300c; background: #f8b95b url("/static/site_v2/assets/homepage-preview/btn_default_%E5%8F%91%E8%B5%B7%E5%92%A8%E8%AF%A2.png") center / 200px 60px no-repeat; font-size: 18px; transition: transform .2s ease, filter .2s ease, box-shadow .2s ease; }
.hero-button:hover, .hero-button:focus-visible { transform: translateY(-3px); filter: brightness(1.08); box-shadow: 0 12px 24px rgba(35, 17, 7, .24); }
.hero-button:focus-visible { outline: 3px solid rgba(255, 255, 255, .86); outline-offset: 4px; }
.hero-button:active { transform: translateY(-1px); filter: brightness(1.03); }
.hero-button img { width: 31px; height: 28px; object-fit: contain; }
.hero-pager { position: absolute; z-index: 3; bottom: 235px; left: 50%; display: flex; gap: 14px; transform: translateX(-50%); }
.pager-dot { width: 72px; height: 5px; padding: 0; border-radius: 4px; background: rgba(255,255,255,.34); }
.pager-dot.selected, .pager-dot:hover { background: #fff; }
.hero-stats { position: absolute; z-index: 2; bottom: 72px; left: calc(50% + 30px); display: flex; width: 1040px; justify-content: space-between; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.1); transform: translateX(-50%); }
.hero-stat { text-align: center; }
.hero-stat strong { display: block; color: #fff; font-size: 34px; font-weight: 700; line-height: 1; }
.hero-stat span { display: block; margin-top: 8px; color: rgba(255,255,255,.72); font-size: 12px; }

.reasons { min-height: 1080px; padding: 64px 0 0; background: #fbfbfb; }
.reasons .section-heading h2 { color: #996633; font-size: 38px; }
.section-subtitle { margin: 8px 0 0; color: #a06a36; font-size: 24px; }
.reasons .section-heading > p:last-child { margin: 8px auto 0; color: #4b4b52; font-size: 16px; line-height: 1.65; }
.reason-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); grid-template-rows: 240px 240px 216px; grid-auto-rows: 240px; gap: 20px; margin-top: 36px; }
.reason-card { position: relative; min-height: 0; overflow: hidden; border-radius: 12px; background: #fff; box-shadow: 0 10px 28px rgba(74, 45, 17, .07); }
.card-link-overlay { position: absolute; z-index: 3; inset: 0; display: block; border-radius: inherit; }
.card-link-overlay span { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.card-link-overlay:focus-visible { outline: 3px solid #f8b95b; outline-offset: 4px; }
.footer-link-pending { color: #76767c; }
.reason-card > img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease; }
.reason-card:nth-child(4) > img { object-position: 50% 100%; }
.reason-card:hover > img { transform: scale(1.03); }
.reason-tall { grid-column: 1 / 3; grid-row: 1 / 3; }
.reason-card:nth-child(2) { grid-column: 3 / 5; grid-row: 1; }
.reason-card:nth-child(3) { grid-column: 5 / 7; grid-row: 1; }
.reason-card:nth-child(4) { grid-column: 3 / 5; grid-row: 2; }
.reason-card:nth-child(5) { grid-column: 5 / 7; grid-row: 2; }
.reason-wide { grid-column: 1 / 4; grid-row: 3; }
.reason-last { grid-column: 4 / 7; grid-row: 3; }
.reason-overlay { position: absolute; right: 0; bottom: 0; left: 0; padding: 24px; color: #fff; background: linear-gradient(180deg, rgba(0,0,0,.02) 42%, rgba(0,0,0,.68)); }
.reason-overlay h3 { margin: 0 0 7px; font-size: 27px; font-weight: 700; line-height: 1.25; }
.reason-overlay p { margin: 0; color: rgba(255,255,255,.9); font-size: 13px; line-height: 1.6; }

.platform { position: relative; min-height: 1080px; background: #c3925e url("/static/site_v2/assets/homepage-preview/bg_%E5%B9%B3%E5%8F%B0%E7%B3%BB%E7%BB%9F%E4%BA%A7%E5%93%81.png") center top / 1920px 1080px no-repeat; }
.watermark-trinity { left: min(118px, 6.145833vw); bottom: min(1px, .0520833vw); width: min(1722px, 89.6875vw); opacity: 1; }
.platform-content { z-index: 1; padding-top: 162px; }
.platform-heading h2 { color: #fff; font-size: 36px; }
.platform-heading h3 { margin: 7px 0 0; color: #fff; font-size: 40px; font-weight: 400; line-height: 1.25; }
.platform-heading .section-kicker { margin-top: 30px; color: #e9a964; font-size: 13px; letter-spacing: .16em; }
.platform-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px; margin-top: 103px; }
.platform .centered-image { margin-top: 44px; }
.platform-card { position: relative; min-height: 350px; padding: 38px 36px 34px; color: #2e2e36; background: #fff; border-radius: 12px; }
.platform-logo { width: 100px; height: auto; margin: 0 auto; }
.platform-card h3 { margin: 24px 0 0; text-align: center; font-size: 24px; font-weight: 700; }
.platform-subtitle { display: block; margin-top: 5px; color: #a0a0a0; font-size: 12px; text-align: center; letter-spacing: .04em; }
.platform-card ul { display: grid; gap: 14px; margin: 30px 0 0; padding: 0; list-style: none; }
.platform-card li { position: relative; padding-left: 22px; color: #424248; font-size: 14px; }
.platform-card li::before { content: ""; position: absolute; top: 7px; left: 0; width: 7px; height: 7px; border-radius: 50%; background: #a26b31; }
.dual-logos { display: flex; align-items: center; justify-content: center; height: 100px; gap: 12px; }
.dual-logos img:first-child { width: 89px; height: 47px; object-fit: contain; }
.dual-logos img:last-child { width: 137px; height: 50px; object-fit: contain; }
.platform > .page-width .image-link { display: flex; justify-content: center; margin-top: 48px; }

.empower { padding-top: 125px; min-height: 840px; background: #fff url("/static/site_v2/assets/homepage-preview/bg-%E5%85%A8%E9%93%BE%E8%B7%AF%E5%95%86%E4%B8%9A%E8%B5%8B%E8%83%BD%20%E5%8A%A9%E5%8A%9B%E4%BC%99%E4%BC%B4%E6%88%90%E5%8A%9F.png") center top / 1920px 840px no-repeat; }
.empower-heading h2 { color: #8b5b2b; }
.empower-heading .section-kicker { color: #c4b9a7; }
.empower-layout { display: flex; align-items: center; gap: 18px; max-width: 1200px; margin: 55px auto 0; }
.empower-visual { flex: 0 0 600px; width: 600px; height: 414px; object-fit: contain; }
.empower-content { flex: 1; min-width: 0; }
.empower-group { margin-bottom: 27px; }
.empower-group h3 { display: flex; align-items: center; gap: 10px; margin: 0 0 17px; color: #2d2d33; font-size: 22px; font-weight: 700; }
.group-dot { display: inline-block; width: 8px; height: 8px; border-radius: 2px; }
.group-dot-blue { background: #3d65d7; }
.group-dot-orange { background: #d57923; }
.group-dot-purple { background: #7c3dad; }
.course-row { display: flex; flex-wrap: wrap; gap: 8px; }
.course { display: inline-flex; align-items: center; justify-content: center; min-width: 108px; height: 45px; padding: 0 12px; border: 1px solid #d8d8d8; border-radius: 24px; color: #666; background: #fff; font-size: 12px; text-decoration: none; }

.course:hover { border-color: #aaa; }
.course-blue.active { border-color: #4e72dc; color: #4e72dc; }
.course-orange.active { border-color: #e38c2d; color: #d57923; background: #fff8ef; }
.course-purple.active { border-color: #9b59d5; color: #7c3dad; }
.empower-content > .image-link { margin-top: 30px; }

.history { position: relative; min-height: 542px; overflow: hidden; background: #050718 url("/static/site_v2/assets/homepage-preview/bg-%E6%B7%B1%E8%80%95%E6%B2%89%E6%B7%80%20%E8%A1%8C%E7%A8%B3%E8%87%B4%E8%BF%9C.png") 48px -350px / 1920px 990px no-repeat; }
.history-title { position: absolute; top: 70px; left: calc(50% - 600px); width: 527px; height: auto; }
.history > h2 { position: absolute; top: 137px; left: calc(50% - 600px); margin: 0; color: #fff; font-size: 46px; font-weight: 700; }
.timeline { position: absolute; top: 315px; left: 50%; width: 1200px; transform: translateX(-50%); }
.timeline-line { position: absolute; top: 13px; right: 0; left: 0; height: 2px; background: linear-gradient(90deg, rgba(173, 41, 124, .5), #ef5d68, rgba(173, 41, 124, .5)); }
.timeline-nodes { position: relative; display: flex; justify-content: space-between; }
.timeline-node { position: relative; width: 104px; color: #fff; text-align: center; }
.timeline-node img { width: 35px; height: 35px; margin: 0 auto; object-fit: contain; }
.timeline-node strong { display: block; margin-top: 10px; font-size: 18px; font-weight: 700; }
.timeline-node small { display: block; margin-top: 5px; color: #d6c6bb; font-size: 12px; line-height: 1.45; }

.products { min-height: 1086px; padding: 105px 0 175px; background: #fff; }
.products-heading h2 { color: #9b6632; }
.products-subtitle { margin: 12px 0 0; color: #505057; font-size: 18px; }
.products-heading .section-kicker { margin: 9px 0 0; color: #c3c3c3; }
.product-showcase { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 42px; max-width: 1200px; margin: 64px auto 0; }
.product-card { position: relative; overflow: hidden; border: 1px solid rgba(0,0,0,.07); border-radius: 12px; background: #fff; box-shadow: 0 12px 32px rgba(70,45,20,.06); }
.product-picture { position: relative; height: 330px; overflow: hidden; background: #f6f5f3; }
.product-picture > img:first-child { width: 100%; height: 100%; object-fit: cover; }
.product-picture .product-art { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.product-info { padding: 43px 43px 40px; }
.product-tag { color: #333; font-size: 14px; letter-spacing: .04em; }
.product-info h3 { margin: 6px 0 7px; color: #996633; font-size: 24px; font-weight: 700; }
.product-showcase .product-card:nth-child(2) h3 { color: #33cccc; }
.product-info p { margin: 0; color: #666; font-size: 16px; line-height: 1.5; }
.product-chips { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 15px; }
.product-chip { position: relative; height: 45px; display: block; }
.product-chip img { width: auto; height: 45px; object-fit: contain; }
.product-chip span { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 15px; font-weight: 700; }
.product-chip-teal span { color: #fff; }

.systems { position: relative; min-height: 900px; background: #c3925e url("/static/site_v2/assets/homepage-preview/bg_%E4%B9%9D%E5%A4%A7%E5%AD%90%E7%B3%BB%E7%BB%9F.png") center top / 1920px 900px no-repeat; }
.watermark-symbiosis { left: min(45px, 2.34375vw); bottom: min(3px, .15625vw); width: min(1826px, 95.104167vw); }
.systems-content { z-index: 1; padding-top: 104px; }
.systems .section-heading h2 { color: #fff; }
.systems .section-kicker { color: #cccccc; }
.system-grid { display: grid; gap: 20px; margin-top: 58px; }
.system-grid-five { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.system-grid-four { max-width: 890px; grid-template-columns: repeat(4, minmax(0, 1fr)); margin: 20px auto 0; }
.system-card { position: relative; min-height: 250px; padding: 36px 14px 22px; color: #3c3740; background: #fff; border-radius: 12px; text-align: center; }
.system-card img { width: 72px; height: 72px; margin: 0 auto; object-fit: contain; }
.system-card h3 { margin: 18px 0 7px; font-size: 21px; font-weight: 700; }
.system-card p { margin: 0; color: #767176; font-size: 12px; line-height: 1.55; }

.stories { min-height: 840px; padding: 65px 0 44px; background: #fbfbfb; }
.stories-heading h2 { color: #996633; }
.stories-heading .section-kicker { color: #cccccc; }
.story-columns { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 42px; margin-top: 44px; }
.story-column { display: grid; gap: 26px; align-content: start; }
.story-column-head { display: flex; align-items: center; gap: 14px; margin-bottom: 12px; }
.category-badge { position: relative; display: inline-flex; }
.category-badge img { width: auto; height: 30px; }
.category-badge span { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 11px; letter-spacing: .06em; }
.story-column-head h3 { margin: 0; color: #996633; font-size: 20px; font-weight: 700; }
.story-column-head img { width: auto; height: 30px; }
.story-card { position: relative; display: flex; gap: 24px; min-height: 170px; padding: 29px 28px; overflow: hidden; border-radius: 12px; color: #fff; }
.story-card-one { background: url("/static/site_v2/assets/homepage-preview/%E7%9F%A9%E5%BD%A2%2021.png") center / cover no-repeat; }
.story-card-two { background: url("/static/site_v2/assets/homepage-preview/%E7%9F%A9%E5%BD%A2%2021%281%29.png") center / cover no-repeat; }
.story-card-three { background: url("/static/site_v2/assets/homepage-preview/%E7%9F%A9%E5%BD%A2%2021%282%29.png") center / cover no-repeat; }
.story-card-four { background: url("/static/site_v2/assets/homepage-preview/%E7%9F%A9%E5%BD%A2%2021%283%29.png") center / cover no-repeat; }
.story-avatar { flex: 0 0 84px; width: 84px; height: 84px; border-radius: 50%; object-fit: cover; }
.story-copy { min-width: 0; padding-top: 2px; }
.story-copy strong { display: block; color: #fff; font-size: 24px; font-weight: 700; }
.story-copy small { display: block; margin-top: 3px; color: #fbc865; font-size: 13px; }
.story-copy p { margin: 21px 0 0; color: #fff; font-size: 15px; }
.story-copy blockquote { margin: 12px 0 0; padding-left: 12px; border-left: 1px solid rgba(255,255,255,.35); color: #ffcc66; font-size: 13px; }

.news { position: relative; min-height: 840px; background: #c3925e url("/static/site_v2/assets/homepage-preview/bg_%E6%9C%80%E6%96%B0%E5%8A%A8%E6%80%81.png") center top / 1920px 840px no-repeat; }
.watermark-dynamic { left: min(191px, 9.9479167vw); bottom: max(-4px, -.2083333vw); width: min(1537px, 80.0520833vw); opacity: 1; }
.news > .page-width { z-index: 1; padding-top: 104px; }
.news-heading h2 { color: #fff; }
.news-heading .section-kicker { color: #fff; }
.news-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px; margin-top: 62px; }
.news-card { position: relative; overflow: hidden; border-radius: 12px; background: #fff; box-shadow: 0 12px 32px rgba(82,48,14,.1); }
.news-image { height: 220px; overflow: hidden; }
.news-image img { width: 100%; height: 100%; object-fit: cover; }
.news-body { min-height: 138px; padding: 22px 25px 24px; color: #333; }
.news-type { color: #9b9b9b; font-size: 12px; }
.news-body h3 { margin: 10px 0 7px; color: #4a3520; font-size: 20px; font-weight: 700; line-height: 1.45; }
.news-body p { margin: 0; color: #777; font-size: 13px; }

.contact { min-height: 765px; padding: 68px 0 8px; background: #fff url("/static/site_v2/assets/homepage-preview/bg.png") center top / 1920px 860px no-repeat; }
.contact-content { z-index: 1; }
.contact-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 30px; }
.contact-top h2 { margin: 0; color: #93612f; font-size: 39px; font-weight: 700; line-height: 1.28; }
.contact-top p { margin: 17px 0 0; color: #67676d; font-size: 15px; }
.contact-actions { display: flex; gap: 20px; margin-top: 25px; }
.contact-divider { height: 1px; margin: 34px 0 24px; background: #999; }
.contact-body { display: grid; grid-template-columns: 488px 269px 387px; gap: 0 25px; }
.contact-panel { position: relative; min-height: 477px; overflow: hidden; border-radius: 12px; }
.contact-panel-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.contact-info { position: relative; color: #fff; padding: 43px 38px; }
.contact-logo { width: 92px; height: auto; margin-bottom: 25px; }
.contact-info > p { margin: 0 0 22px; font-size: 15px; line-height: 1.8; }
.contact-pill { position: relative; height: 47px; margin-top: 18px; }
.contact-pill img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: fill; }
.contact-pill span, .contact-pill a { position: absolute; top: 50%; left: 36px; transform: translateY(-50%); color: #26262d; font-size: 15px; text-decoration: none; }
.contact-quick-links { padding-top: 25px; }
.contact-quick-links h3 { margin: 0 0 25px; color: #38383e; font-size: 20px; }
.contact-quick-links dl { display: grid; grid-template-columns: 1fr 1fr; gap: 25px 18px; margin: 0; }
.contact-quick-links dt { color: #999; font-size: 15px; }
.contact-quick-links dd { margin: 0; color: #999; font-size: 14px; }
.contact-quick-links dt a, .contact-quick-links dd a { color: #999; text-decoration: none; transition: color .2s ease; }
.contact-quick-links dt a:hover, .contact-quick-links dd a:hover { color: #3b3b42; text-decoration: underline; }
.contact-qr { position: relative; color: #fff; padding: 32px 28px; }
.contact-qr h3 { margin: 0; font-size: 22px; font-weight: 700; }
.contact-qr > p { margin: 13px 0 0; color: rgba(255,255,255,.92); font-size: 13px; line-height: 1.6; }
.qr-row { display: flex; gap: 20px; margin: 19px 0 0 -4px; }
.qr-item { flex: 0 0 160px; width: 160px; background: #fff; text-align: center; }
.qr-item img { width: 160px; height: 160px; object-fit: contain; }


.site-footer { padding: 35px 0 24px; color: #76767c; background: #fff; font-size: 13px; }
.site-footer::before { content: ""; display: block; width: min(1200px, calc(100% - 80px)); height: 1px; margin: 0 auto 23px; background: #999; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: #76767c; }

html[lang="en"] .main-nav a { font-size: 12px; }
html[lang="en"] .header-button span { font-size: 12px; }
html[lang="en"] .image-button span { font-size: 13px; white-space: nowrap; }
html[lang="en"] .hero-copy { font-size: 19px; }
html[lang="en"] .hero-stat span { font-size: 12px; }
html[lang="en"] .section-heading h2,
html[lang="en"] .reasons .section-heading h2,
html[lang="en"] .platform-heading h2,
html[lang="en"] .empower-heading h2,
html[lang="en"] .products-heading h2 { font-size: 34px; }
html[lang="en"] .reason-overlay h3 { font-size: 21px; }
html[lang="en"] .reason-overlay p { font-size: 12px; }
html[lang="en"] .platform-heading h3 { font-size: 36px; }
html[lang="en"] .platform-card li { font-size: 13px; line-height: 1.5; }
html[lang="en"] .empower-group h3 { font-size: 20px; }
html[lang="en"] .course { min-width: 92px; padding: 0 8px; font-size: 10px; }
html[lang="en"] .history > h2 { font-size: 40px; }
html[lang="en"] .timeline-node small { font-size: 11px; line-height: 1.35; }
html[lang="en"] .product-tag { font-size: 12px; }
html[lang="en"] .product-info h3 { font-size: 22px; }
html[lang="en"] .product-info p { font-size: 14px; line-height: 1.5; }
html[lang="en"] .product-chip span { font-size: 11px; white-space: nowrap; }
html[lang="en"] .system-card h3 { font-size: 19px; }
html[lang="en"] .system-card p { font-size: 10px; line-height: 1.35; }
html[lang="en"] .story-column-head h3 { font-size: 18px; }
html[lang="en"] .story-copy strong { font-size: 21px; }
html[lang="en"] .story-copy small { font-size: 12px; }
html[lang="en"] .story-copy p { font-size: 12px; }
html[lang="en"] .story-copy blockquote { font-size: 12px; }
html[lang="en"] .news-body h3 { font-size: 16px; }
html[lang="en"] .news-body p { font-size: 11px; }
html[lang="en"] .contact-top h2 { font-size: 39px; }
html[lang="en"] .contact-top p { font-size: 14px; }
html[lang="en"] .contact-info > p { font-size: 12px; }
html[lang="en"] .contact-pill span, html[lang="en"] .contact-pill a { font-size: 13px; }
html[lang="en"] .contact-quick-links dt,
html[lang="en"] .contact-quick-links dd { font-size: 13px; }
html[lang="en"] .contact-qr > p { font-size: 12px; }
html[lang="en"] .site-footer { font-size: 12px; }
@media (max-width: 1180px) {
  .history { background-position: center -350px; }
  .product-info { padding: 43px 32px 40px; }
  .product-chip img { width: 126px; }
  .header-inner { gap: 20px; }
  .brand { position: static; left: auto; }
  .main-nav { margin-left: 0; gap: 18px; }
  .main-nav a { font-size: 13px; }
  .hero-stats { width: min(1040px, calc(100% - 80px)); }
  .reason-overlay h3 { font-size: 22px; }
  .empower-layout { flex-direction: row; align-items: flex-start; }
  .empower-content { width: auto; }
  .empower-visual { flex: 0 0 460px; width: 460px; height: auto; }
  .course { min-width: 92px; }
  .system-card { padding-right: 10px; padding-left: 10px; }
  .contact-body { grid-template-columns: minmax(0, 1fr) 200px 360px; gap: 0 15px; }
  .history-title { top: 48px; left: 20px; width: 360px; }
  .history > h2 { top: 118px; left: 20px; font-size: 32px; }
  .timeline { top: 310px; width: calc(100% - 40px); overflow-x: auto; }
  .timeline-nodes { width: 900px; justify-content: space-between; }
}
@media (max-width: 960px) {
  .page-width { width: min(100% - 40px, 650px); }
  .site-header { background: rgba(7,7,22,.36); }
  .header-inner { width: calc(100% - 40px); height: 72px; }
  .brand { position: static; left: auto; }
  .main-nav { margin-left: 0; }
  .header-actions { margin-right: 0; }
  .main-nav, .header-actions { display: none; }
  .menu-toggle { display: block; }
  .main-nav { position: fixed; inset: 72px 0 0; flex-direction: column; align-items: center; justify-content: flex-start; gap: 0; height: auto; padding: 22px 0; background: rgba(5,7,24,.98); transform: translateX(100%); transition: transform .3s ease; }
  .main-nav a { width: 100%; height: 54px; justify-content: center; font-size: 15px; }
  .main-nav a.mobile-language-link { display: flex; }
  .main-nav a::after { right: auto; left: 50%; width: 40px; transform: translateX(-50%) scaleX(0); }
  .main-nav a.active::after, .main-nav a:hover::after { transform: translateX(-50%) scaleX(1); }
  .site-header.menu-active .main-nav { display: flex; transform: translateX(0); }
  .hero { min-height: 800px; background-size: cover; }
  .hero-content { width: calc(100% - 40px); padding-top: 240px; padding-left: 0; }
  .hero h1 { font-size: 58px; }
  .hero-copy { font-size: 18px; }
  .hero-pager { bottom: 175px; }
  .hero-stats { bottom: 46px; left: 50%; width: calc(100% - 40px); }
  .hero-stat strong { font-size: 24px; }
  .hero-stat span { font-size: 11px; }
  .section-heading h2, .platform-heading h2, .empower-heading h2, .products-heading h2, .history > h2, .contact-top h2 { font-size: 32px; }
  .platform-content { padding-top: 104px; }
  .platform-heading h3 { font-size: 36px; }
  .platform-heading .section-kicker { font-size: 13px; letter-spacing: .16em; }
  .platform-grid { margin-top: 24px; }
  .reasons .section-heading h2 { font-size: 32px; }
  .reason-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); grid-template-rows: none; grid-auto-rows: 220px; }
  .reason-grid > .reason-card { grid-column: auto; grid-row: auto; }
  .reason-grid > .reason-tall { grid-column: 1 / -1; }
  .platform-grid, .product-showcase, .story-columns { grid-template-columns: 1fr; }
  .platform-card { min-height: auto; }
  .empower-visual { width: 100%; height: auto; }
  .empower-layout { flex-direction: column; align-items: center; }
  .empower-content { width: 100%; }
  .system-grid-five { grid-template-columns: repeat(3, 1fr); }
  .system-grid-four { max-width: 100%; grid-template-columns: repeat(2, 1fr); }
  .contact-top { flex-direction: column; }
  .contact-body { grid-template-columns: 1fr; max-width: 520px; margin: 0 auto; }
  .contact-panel { max-width: 488px; width: 100%; }
  .contact-quick-links { padding-top: 20px; }
  .footer-inner { flex-wrap: wrap; }
}
@media (max-width: 520px) {
  .hero { min-height: 720px; }
  .hero-content { padding-top: 205px; }
  .hero h1 { font-size: 48px; }
  .hero-copy { font-size: 16px; }
  .hero-button { width: 176px; height: 54px; font-size: 16px; }
  .hero-stat strong { font-size: 19px; }
  .hero-stat span { font-size: 9px; }
  .reason-grid { grid-template-columns: 1fr; grid-template-rows: none; grid-auto-rows: 220px; }
  .reason-grid > .reason-card { grid-column: auto; grid-row: auto; }
  .system-grid-five { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: 1fr; }
  .story-card { padding: 25px 20px; }
  .story-avatar { flex-basis: 68px; width: 68px; height: 68px; }
  .story-copy strong { font-size: 20px; }
  .product-info { padding: 22px; }
  .contact-top h2 { font-size: 27px; }
  .contact-actions { flex-direction: column; }
  .qr-row { flex-direction: column; align-items: center; }
}

/* ================= Responsive patch (append-only, desktop layout untouched) ================= */

/* --- 1380px 及以下：导航收进抽屉，避免挤压溢出 --- */
@media (max-width: 1380px) {
  .site-header { background: rgba(7, 7, 22, .36); }
  .main-nav { display: none; }
  .menu-toggle { display: block; }
}

@media (max-width: 1380px) {
  .site-header.menu-active .main-nav {
    position: fixed;
    inset: 72px 0 0;
    z-index: 45;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 0;
    height: auto;
    overflow-y: auto;
    padding: 22px 0;
    margin-left: 0;
    background: rgba(5, 7, 24, .98);
    transform: none;
  }
  .site-header.menu-active .main-nav a {
    width: 100%;
    height: 54px;
    justify-content: center;
    font-size: 15px;
  }
}

@media (max-width: 960px) {
  .site-header.menu-active .main-nav { padding-bottom: 96px; }
  .site-header.menu-active .main-nav a { flex-shrink: 0; }
}

/* --- 1181–1279px：时间轴与标题不再溢出画布 --- */
@media (max-width: 1279px) {
  .history-title { left: max(20px, calc(50% - 600px)); }
  .history > h2 { left: max(20px, calc(50% - 600px)); }
  .timeline { width: min(1200px, calc(100% - 40px)); }
}

/* --- 961–1180px：页脚三栏改按比例收缩，二维码可换行 --- */
@media (min-width: 961px) and (max-width: 1180px) {
  .contact-body { grid-template-columns: minmax(0, 488fr) minmax(0, 269fr) minmax(0, 387fr); gap: 0 15px; }
  .contact-info { padding: 34px 28px; }
  .contact-pill span { font-size: 13px; }
  .qr-row { flex-wrap: wrap; }
  .qr-item { flex: 0 0 140px; width: 140px; }
  .qr-item img { width: 140px; height: 140px; }
}

/* --- 超宽屏（>1920px）：背景图横向铺满全屏，消除两侧留白 --- */
@media (min-width: 1921px) {
  .hero,
  .platform,
  .empower,
  .systems,
  .news,
  .contact { background-size: 100% auto; background-position: center top; }
  .history { background-size: 100% auto; background-position: center -350px; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-slide { transition: none; }
}