* { box-sizing: border-box; }
:root {
    --ink: #172737;
    --muted: #607286;
    --navy: #082a49;
    --blue: #126eb4;
    --cyan: #22b8d7;
    --paper: #f5f8fb;
    --line: #d8e5ef;
    --white: #fff;
    --shadow: 0 18px 44px rgba(8, 42, 73, .12);
}
html { scroll-behavior: smooth; scroll-padding-top: 132px; }
body.xy-preview { margin: 0; color: var(--ink); font-family: Arial, "Microsoft YaHei", sans-serif; background: var(--paper); }
.xy-preview a { color: inherit; text-decoration: none; }
.xy-preview img { display: block; max-width: 100%; }
.xy-preview :focus-visible { outline: 3px solid rgba(34, 184, 215, .7); outline-offset: 3px; }
.xy-preview ul, .xy-preview ol { padding: 0; margin: 0; list-style: none; }
.xy-preview ul li, .xy-preview ol li { list-style: none; }
.preview-header { position: fixed; top: 0; left: 0; right: 0; z-index: 60; color: var(--ink); background: transparent; border-bottom: 1px solid transparent; transition: background .24s ease, box-shadow .24s ease, border-color .24s ease, color .24s ease; }
.preview-header.is-scrolled { color: var(--ink); background: rgba(255,255,255,.96); border-bottom-color: rgba(216,229,239,.9); box-shadow: 0 10px 30px rgba(8, 42, 73, .1); backdrop-filter: blur(14px); }
/* 下拉展开时整条导航切换为白底（与滚动态一致），避免透明栏下出现孤立白色悬浮块 */
.preview-header:not(.is-scrolled):has(.preview-nav__item:hover),
.preview-header:not(.is-scrolled):has(.preview-nav__item:focus-within) { color: var(--ink); background: rgba(255,255,255,.96); border-bottom-color: rgba(216,229,239,.9); box-shadow: 0 10px 30px rgba(8, 42, 73, .1); backdrop-filter: blur(14px); }
.preview-notice { display: flex; justify-content: flex-end; gap: 24px; width: min(1560px, calc(100% - 32px)); margin: 0 auto; padding: 9px 0; color: #5d6a76; font-size: 13px; }
.preview-notice a { color: var(--blue); font-weight: 800; }
.preview-header.is-scrolled .preview-notice { color: #5d6a76; border-bottom: 1px solid #edf3f8; }
.preview-header.is-scrolled .preview-notice a { color: var(--blue); }
.preview-header__inner { display: flex; align-items: center; gap: 10px; width: min(1560px, calc(100% - 32px)); min-height: 82px; margin: 0 auto; }
.preview-logo { display: flex; align-items: center; flex: 0 0 250px; min-width: 250px; }
.preview-logo img { width: auto; height: 54px; max-width: 250px; object-fit: contain; }
.preview-nav { display: flex; justify-content: flex-end; flex: 1; gap: clamp(20px, 1.65vw, 38px); }
.preview-nav, .preview-header__actions { transform: translateX(24px); }
.preview-nav__item { position: relative; }
.preview-nav__link { position: relative; display: block; padding: 32px 4px; color: currentColor; font-size: 15px; white-space: nowrap; }
.preview-nav__link:after { content: ""; position: absolute; left: 4px; right: 4px; bottom: 24px; height: 2px; background: var(--cyan); transform: scaleX(0); transform-origin: left; transition: transform .2s ease; }
.preview-nav__link:hover, .preview-nav__link.is-active, .preview-nav__item:focus-within > .preview-nav__link { color: var(--blue); }
.preview-header:not(.is-scrolled) .preview-nav__link:hover, .preview-header:not(.is-scrolled) .preview-nav__link.is-active, .preview-header:not(.is-scrolled) .preview-nav__item:focus-within > .preview-nav__link { color: var(--blue); }
.preview-nav__link:hover:after, .preview-nav__link.is-active:after, .preview-nav__item:focus-within > .preview-nav__link:after { transform: scaleX(1); }
.preview-nav__dropdown { position: absolute; top: 100%; left: 50%; min-width: 210px; padding: 10px; background: rgba(255,255,255,.98); border: 1px solid var(--line); box-shadow: 0 18px 42px rgba(8,42,73,.16); opacity: 0; visibility: hidden; transform: translate(-50%, 10px); transition: opacity .18s ease, transform .18s ease, visibility .18s ease; }
.preview-nav__dropdown:before { content: ""; position: absolute; top: -7px; left: 50%; width: 12px; height: 12px; background: rgba(255,255,255,.98); border-left: 1px solid var(--line); border-top: 1px solid var(--line); transform: translateX(-50%) rotate(45deg); }
.preview-nav__item:hover .preview-nav__dropdown, .preview-nav__item:focus-within .preview-nav__dropdown { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.preview-nav__dropdown a { display: block; padding: 10px 12px; color: #243647; font-size: 14px; line-height: 1.35; white-space: nowrap; border-bottom: 1px solid #eef4f8; }
.preview-nav__dropdown a:last-child { border-bottom: 0; }
.preview-nav__dropdown a:hover { color: var(--blue); background: #f2f8fc; }
.preview-header__actions { display: flex; align-items: center; justify-content: flex-end; gap: 14px; margin-left: 44px; }
.preview-inquiry { display: inline-flex; align-items: center; justify-content: center; min-width: 112px; height: 36px; padding: 0 18px; color: #07304a; border-radius: 999px; background: #9af3ef; box-shadow: 0 12px 26px rgba(22,181,176,.24); font-size: 14px; font-weight: 900; white-space: nowrap; transition: color .2s ease, background .2s ease, transform .2s ease, box-shadow .2s ease; }
.preview-inquiry:hover { color: #fff; background: var(--blue); box-shadow: 0 16px 34px rgba(10,110,158,.28); transform: translateY(-1px); }
.preview-lang { position: relative; display: inline-flex; align-items: center; justify-content: center; min-width: 62px; height: 34px; padding: 0 14px; overflow: hidden; color: var(--navy); border: 1px solid rgba(255,255,255,.56); border-radius: 999px; background: rgba(255,255,255,.16); box-shadow: inset 0 1px 0 rgba(255,255,255,.18); font-size: 13px; font-weight: 900; letter-spacing: .06em; backdrop-filter: blur(8px); }
.preview-lang:before { content: ""; position: absolute; inset: 3px; border-radius: inherit; background: #8de8ff; box-shadow: 0 8px 18px rgba(34,184,215,.28); }
.preview-lang span { position: relative; z-index: 1; }
.preview-lang.is-zh span:last-child, .preview-lang.is-en span:first-child { display: none; }
.preview-search { position: relative; display: inline-block; width: 120px; height: 30px; padding: 0; color: #fff; border: 1px solid rgba(255,255,255,.5); border-radius: 999px; background: rgba(255,255,255,.12); box-shadow: inset 0 1px 0 rgba(255,255,255,.16), 0 10px 22px rgba(5,28,51,.14); cursor: pointer; backdrop-filter: blur(8px); }
.preview-search:before { content: ""; position: absolute; left: 8px; top: 7px; width: 11px; height: 11px; border: 2px solid currentColor; border-radius: 50%; }
.preview-search:after { content: ""; position: absolute; left: 20px; top: 20px; width: 9px; height: 2px; background: currentColor; border-radius: 999px; transform: rotate(45deg); transform-origin: left center; }
.preview-header.is-scrolled .preview-lang { border-color: #d7e2ec; background: #f2f8fc; }
.preview-header.is-scrolled .preview-search { color: var(--navy); border-color: #d7e2ec; background: #f8fbfd; box-shadow: 0 10px 22px rgba(8,42,73,.08); }
.preview-lang:hover { color: var(--navy); border-color: #8de8ff; transform: translateY(-1px); }
.preview-search:hover { color: var(--navy); border-color: #8de8ff; background: #8de8ff; transform: translateY(-1px); }
.preview-header.is-scrolled .preview-lang:hover { color: var(--navy); border-color: var(--blue); }
.preview-header.is-scrolled .preview-search:hover { color: var(--blue); border-color: var(--blue); }
/* Mobile hamburger + drawer — hidden on desktop (>= 761px), shown by max-width:760px rules below. */
body.preview-menu-open { overflow: hidden; }
.preview-burger { order: 9; flex: 0 0 40px; display: none; width: 40px; height: 40px; padding: 0; border: 0; background: transparent; cursor: pointer; }
.preview-burger span { display: block; width: 24px; height: 2px; margin: 4px auto; background: var(--navy); transition: transform .2s ease, opacity .2s ease; }
.preview-burger.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.preview-burger.is-open span:nth-child(2) { opacity: 0; }
.preview-burger.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
.preview-mobile-menu { position: fixed; top: 0; right: 0; z-index: 1100; display: none; width: min(82vw, 340px); height: 100vh; overflow-y: auto; background: var(--white); box-shadow: -16px 0 42px rgba(8, 42, 73, .18); transform: translateX(100%); transition: transform .26s ease; }
.preview-mobile-menu.is-open { transform: translateX(0); }
.preview-mobile-menu__nav { padding: 78px 0 12px; }
.preview-mobile-menu__item { border-bottom: 1px solid #edf3f8; }
.preview-mobile-menu__item.has-children { display: flex; flex-wrap: wrap; align-items: stretch; }
.preview-mobile-menu__item.has-children > .preview-mobile-menu__link { flex: 1 1 auto; min-width: 0; }
.preview-mobile-menu__link { display: block; padding: 14px 22px; color: var(--navy); font-size: 16px; font-weight: 700; }
.preview-mobile-menu__link.is-active { color: var(--blue); }
.preview-mobile-menu__toggle { flex: 0 0 48px; width: 48px; padding: 0; border: 0; background: transparent; cursor: pointer; position: relative; }
.preview-mobile-menu__toggle:before, .preview-mobile-menu__toggle:after { content: ""; position: absolute; top: 50%; left: 50%; width: 14px; height: 2px; margin: -1px 0 0 -7px; background: var(--navy); transition: transform .2s ease, opacity .2s ease; }
.preview-mobile-menu__toggle:after { transform: rotate(90deg); }
.preview-mobile-menu__item.is-expanded > .preview-mobile-menu__toggle:after { transform: rotate(0); opacity: 0; }
.preview-mobile-menu__item.is-expanded > .preview-mobile-menu__toggle:before { color: var(--blue); background: var(--blue); }
.preview-mobile-menu__sub { flex-basis: 100%; max-height: 0; overflow: hidden; background: #f5f9fd; transition: max-height .26s ease; }
.preview-mobile-menu__item.is-expanded > .preview-mobile-menu__sub { max-height: 600px; }
.preview-mobile-menu__sub a { display: block; padding: 9px 30px; color: #46586b; font-size: 14px; }
.preview-mobile-menu__sub a:first-child { padding-top: 12px; }
.preview-mobile-menu__sub a:last-child { padding-bottom: 12px; }
.preview-mobile-menu__sub a:hover { color: var(--blue); }
.preview-mobile-menu__actions { display: flex; flex-wrap: wrap; gap: 10px; padding: 18px 22px 26px; }
.preview-mobile-menu__inquiry { flex: 1 1 auto; text-align: center; padding: 11px 16px; border-radius: 999px; background: var(--blue); color: var(--white); font-size: 14px; font-weight: 700; }
.preview-mobile-menu__search { flex: 0 0 auto; padding: 11px 14px; border-radius: 999px; border: 1px solid var(--line); color: var(--navy); font-size: 14px; }
.preview-mobile-menu__lang { flex: 0 0 auto; padding: 11px 14px; border-radius: 999px; border: 1px solid var(--line); color: var(--navy); font-size: 14px; }
.preview-mobile-mask { position: fixed; inset: 0; z-index: 1090; display: none; opacity: 0; pointer-events: none; background: rgba(8, 28, 51, .5); transition: opacity .26s ease; }
.preview-mobile-mask.is-open { opacity: 1; pointer-events: auto; }
.preview-hero { position: relative; display: grid; min-height: clamp(860px, 104vh, 1080px); overflow: hidden; color: var(--white); background: var(--navy); }
.preview-hero:before, .preview-hero:after { display: none; }
.preview-hero__media { position: absolute; inset: 0; }
.preview-hero__media:after { content: ""; position: absolute; inset: 0; }
.preview-hero__media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transform: scale(1.06); transition: opacity .8s ease, transform 5s linear; }
.preview-hero__media img.is-active { opacity: 1; transform: scale(1); }
.preview-hero__arrow { position: absolute; top: 50%; z-index: 4; display: flex; align-items: center; justify-content: center; width: 54px; height: 54px; padding: 0; color: rgba(255,255,255,.9); border: 1px solid rgba(255,255,255,.55); border-radius: 50%; background: rgba(5,28,51,.18); font-size: 42px; line-height: 1; cursor: pointer; transform: translateY(-50%); transition: background .2s ease, border-color .2s ease, color .2s ease; }
.preview-hero__arrow:hover { color: var(--navy); border-color: #8de8ff; background: #8de8ff; }
.preview-hero__arrow--prev { left: max(28px, calc((100% - 1560px) / 2)); }
.preview-hero__arrow--next { right: max(28px, calc((100% - 1560px) / 2)); }
.preview-hero__dots { position: absolute; left: 50%; bottom: 42px; z-index: 4; display: flex; gap: 12px; transform: translateX(-50%); }
.preview-hero__dots button { width: 42px; height: 4px; padding: 0; border: 0; background: rgba(255,255,255,.48); cursor: pointer; transition: width .2s ease, background .2s ease; }
.preview-hero__dots button.is-active { width: 68px; background: #8de8ff; }
.preview-hero__copy { display: none; }
.preview-hero__copy > p { margin: 0 0 18px; color: #8de8ff; font-size: 15px; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; }
.preview-hero__copy h1 { margin: 0; max-width: 820px; font-size: clamp(42px, 5.6vw, 82px); line-height: 1.06; font-weight: 900; letter-spacing: -.035em; }
.preview-hero__copy div { margin-top: 24px; max-width: 650px; font-size: 18px; line-height: 1.9; opacity: .93; }
.preview-hero__points { display: flex; flex-wrap: wrap; gap: 10px; margin: 28px 0 0; padding: 0; list-style: none; }
.preview-hero__points li { padding: 9px 14px; border: 1px solid rgba(141,232,255,.42); background: rgba(255,255,255,.08); color: #d8f8ff; font-size: 14px; font-weight: 700; }
.preview-hero__copy a { display: inline-block; margin-top: 34px; padding: 15px 34px; color: var(--navy); background: #8de8ff; border-radius: 999px; box-shadow: 0 16px 34px rgba(34,184,215,.25); font-weight: 900; }
.preview-strip { display: grid; grid-template-columns: repeat(4, 1fr); width: min(1240px, calc(100% - 44px)); margin: -58px auto 0; position: relative; z-index: 5; color: var(--white); background: linear-gradient(135deg, var(--blue), var(--cyan)); box-shadow: 0 20px 42px rgba(18,110,180,.28); }
.preview-strip article { padding: 30px 20px; text-align: center; border-right: 1px solid rgba(255,255,255,.26); }
.preview-strip article:last-child { border-right: 0; }
.preview-strip strong { display: block; font-size: 36px; line-height: 1; letter-spacing: -.02em; }
.preview-strip span { display: block; margin-top: 12px; font-size: 15px; }
.preview-section { width: min(1240px, calc(100% - 44px)); margin: 0 auto; padding: 86px 0; }
.preview-title { position: relative; width: 100%; height: 115px; margin-bottom: 38px; overflow: hidden; text-align: center; line-height: 125px; }
.preview-title span { position: relative; display: inline-block; color: #e4edf4; font-family: Arial, sans-serif; font-size: 80px; font-weight: bold; line-height: inherit; text-transform: uppercase; white-space: nowrap; -webkit-mask-image: linear-gradient(to bottom, #000 0%, #000 56%, rgba(0,0,0,.62) 78%, rgba(0,0,0,.18) 100%); mask-image: linear-gradient(to bottom, #000 0%, #000 56%, rgba(0,0,0,.62) 78%, rgba(0,0,0,.18) 100%); }
.preview-title span:after { display: none; }
.preview-title h2 { position: absolute; left: 0; bottom: 0; z-index: 1; width: 100%; margin: 0; overflow: hidden; color: var(--navy); font-size: 40px; font-weight: 500; line-height: 1.2; text-align: center; letter-spacing: -.02em; }
.preview-title h2:after { display: none; }
.preview-title--left { text-align: center; }
.preview-title--products span, .preview-title--service span, .preview-title--honors span, .preview-title--news span { font-size: 80px; }
.preview-title--structure span { font-size: 70px; }
.preview-title--applications span { font-size: 62px; }
.preview-title--technology span { font-size: 66px; }
.preview-title--about span { font-size: 76px; }
.preview-title--light span { color: rgba(255,255,255,.24); }
.preview-title--light h2 { color: var(--white); }
.preview-product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.preview-product-card { overflow: hidden; background: var(--white); border: 1px solid var(--line); box-shadow: var(--shadow); transition: transform .2s ease, box-shadow .2s ease; }
.preview-product-card:hover { transform: translateY(-6px); box-shadow: 0 24px 54px rgba(8,42,73,.16); }
.preview-product-card img { width: 100%; height: 190px; object-fit: cover; background: #eef5fa; }
.preview-product-card h3 { margin: 0; padding: 20px 22px; color: var(--white); background: linear-gradient(135deg, var(--navy), var(--blue)); font-size: 20px; }
.preview-product-card p { display: flex; justify-content: space-between; gap: 10px; margin: 0; padding: 15px 18px; border-bottom: 1px solid #e8eef4; font-size: 14px; }
.preview-product-card p:last-child { border-bottom: 0; }
.preview-product-card em { color: var(--muted); font-style: normal; white-space: nowrap; }
.preview-workflow { padding-top: 0; }
.preview-workflow__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; background: var(--white); border: 1px solid var(--line); box-shadow: var(--shadow); }
.preview-workflow__grid article { position: relative; padding: 32px 26px 34px; border-right: 1px solid var(--line); }
.preview-workflow__grid article:last-child { border-right: 0; }
.preview-workflow__grid article:after { content: ""; position: absolute; top: 42px; right: -9px; z-index: 1; width: 18px; height: 18px; border-top: 1px solid var(--line); border-right: 1px solid var(--line); background: var(--white); transform: rotate(45deg); }
.preview-workflow__grid article:last-child:after { display: none; }
.preview-workflow__grid span { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; color: var(--white); background: var(--blue); border-radius: 50%; font-weight: 900; }
.preview-workflow__grid h3 { margin: 20px 0 10px; color: var(--navy); font-size: 22px; }
.preview-workflow__grid p { margin: 0; color: var(--muted); line-height: 1.75; }
.preview-detail-card { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; padding: 38px; background: var(--white); border: 1px solid var(--line); box-shadow: var(--shadow); }
.preview-detail-card small { color: var(--blue); font-weight: 900; text-transform: uppercase; }
.preview-detail-card h3 { margin: 12px 0; color: var(--navy); font-size: 34px; }
.preview-detail-card p { color: var(--muted); line-height: 1.8; }
.preview-detail-card ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.preview-detail-card li { padding: 15px 18px; background: #f4f8fb; border-left: 4px solid var(--blue); }
.preview-blue { width: 100%; max-width: none; padding: 86px max(22px, calc((100% - 1240px) / 2)); color: var(--white); background: radial-gradient(circle at 12% 20%, rgba(34,184,215,.38), transparent 32%), linear-gradient(135deg, #071f38, #0b4d82 58%, #126eb4); }
.preview-card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.preview-card-grid article { padding: 30px 28px; min-height: 170px; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.2); box-shadow: inset 0 1px 0 rgba(255,255,255,.08); }
.preview-card-grid h3 { margin: 0 0 13px; font-size: 22px; }
.preview-card-grid p { margin: 0; line-height: 1.75; opacity: .9; }
.preview-tech-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.preview-tech-grid article { position: relative; overflow: hidden; padding: 30px 24px; background: var(--white); border: 1px solid var(--line); box-shadow: var(--shadow); }
.preview-tech-grid article:before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, var(--blue), var(--cyan)); }
.preview-tech-grid b { color: rgba(18,110,180,.24); font-size: 44px; line-height: 1; }
.preview-tech-grid h3 { margin: 18px 0 12px; color: var(--navy); font-size: 22px; }
.preview-tech-grid p { color: var(--muted); line-height: 1.75; }
.preview-about { display: grid; grid-template-columns: 1fr 1.05fr; gap: 42px; align-items: center; }
.preview-about__copy p { color: var(--muted); font-size: 17px; line-height: 2; }
.preview-about__images { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.preview-about__images img { width: 100%; height: 180px; object-fit: cover; box-shadow: var(--shadow); }
.preview-about__images img:first-child { grid-row: span 2; height: 376px; }
.preview-honors { width: 100%; max-width: none; padding-left: max(22px, calc((100% - 1240px) / 2)); padding-right: max(22px, calc((100% - 1240px) / 2)); background: var(--white); }
.preview-honor-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.preview-honor-grid figure { margin: 0; padding: 18px; background: #f4f8fb; border: 1px solid var(--line); text-align: center; }
.preview-honor-grid img { width: 100%; height: 210px; object-fit: cover; background: var(--white); }
.preview-honor-grid figcaption { margin-top: 14px; color: var(--navy); font-weight: 800; }
.preview-news-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.preview-news-list article { padding: 28px; background: var(--white); border: 1px solid var(--line); box-shadow: var(--shadow); }
.preview-news-list small { color: var(--blue); font-weight: 800; }
.preview-news-list h3 { margin: 14px 0 0; color: var(--navy); line-height: 1.5; }
.preview-careers { display: grid; grid-template-columns: 1.2fr .8fr; gap: 30px; align-items: stretch; }
.preview-careers > div, .preview-careers article { padding: 34px; background: var(--white); border: 1px solid var(--line); box-shadow: var(--shadow); }
.preview-careers p { color: var(--muted); line-height: 1.85; }
.preview-careers small { color: var(--blue); font-weight: 900; }
.preview-careers h3 { color: var(--navy); font-size: 26px; }
.preview-contact { width: 100%; max-width: none; padding-left: max(22px, calc((100% - 1240px) / 2)); padding-right: max(22px, calc((100% - 1240px) / 2)); background: #eaf3fa; }
.preview-contact__grid { display: grid; grid-template-columns: .92fr 1.08fr; gap: 32px; }
.preview-contact__info, .preview-form { padding: 34px; background: var(--white); border: 1px solid var(--line); box-shadow: var(--shadow); }
.preview-contact__info p { color: var(--muted); line-height: 1.8; }
.preview-purchase { margin-top: 24px; padding: 24px; color: var(--white); background: linear-gradient(135deg, var(--navy), #0f5d98); }
.preview-purchase h3 { margin: 0 0 12px; }
.preview-purchase p { margin: 0; color: rgba(255,255,255,.9); }
.preview-form { display: grid; gap: 14px; }
.preview-form input, .preview-form select, .preview-form textarea { width: 100%; padding: 14px 15px; border: 1px solid #d7e2ec; outline: none; background: #f8fbfd; color: var(--ink); }
.preview-form textarea { min-height: 120px; resize: vertical; }
.preview-form button { padding: 15px; color: var(--white); border: 0; background: linear-gradient(135deg, var(--blue), var(--cyan)); cursor: pointer; font-weight: 900; }
.preview-check-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.preview-check-grid span { padding: 18px 20px; color: var(--navy); background: var(--white); border-left: 4px solid var(--blue); box-shadow: 0 10px 24px rgba(13,49,87,.08); font-weight: 700; }
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .preview-hero__media img, .preview-product-card, .preview-nav__link:after, .preview-nav__dropdown { transition: none; }
}
@media (max-width: 1180px) {
    html { scroll-padding-top: 190px; }
    .preview-header__inner { align-items: flex-start; flex-direction: column; padding: 12px 0 16px; }
    .preview-notice { justify-content: flex-start; }
    .preview-nav { flex-wrap: wrap; justify-content: flex-start; }
    .preview-nav, .preview-header__actions { transform: none; }
    .preview-header__actions { margin-left: 0; }
    .preview-inquiry { min-width: 96px; padding: 0 14px; }
    .preview-nav__link { padding: 8px 10px; }
    .preview-nav__link:after { bottom: 2px; left: 8px; right: 8px; }
    .preview-nav__dropdown { left: 0; transform: translate(0, 10px); }
    .preview-nav__item:hover .preview-nav__dropdown, .preview-nav__item:focus-within .preview-nav__dropdown { transform: translate(0, 0); }
    .preview-nav__dropdown:before { left: 24px; }
    .preview-product-grid, .preview-tech-grid, .preview-honor-grid, .preview-workflow__grid { grid-template-columns: repeat(2, 1fr); }
    .preview-workflow__grid article:nth-child(2) { border-right: 0; }
    .preview-workflow__grid article:nth-child(2):after { display: none; }
}
@media (max-width: 760px) {
    html { scroll-padding-top: 0; }
    .preview-notice { flex-direction: column; gap: 6px; text-align: center; }
    .preview-header { position: static; color: var(--ink); background: rgba(255,255,255,.96); border-bottom-color: rgba(216,229,239,.9); box-shadow: 0 10px 30px rgba(8, 42, 73, .1); }
    .preview-header__inner { flex-direction: row; align-items: center; justify-content: space-between; width: min(100% - 28px, 720px); min-height: 60px; padding: 0; }
    .preview-logo { flex-basis: auto; flex: 0 0 auto; min-width: 0; }
    .preview-logo img { height: 42px; max-width: 180px; }
    .preview-nav, .preview-header__actions { display: none; }
    .preview-burger { display: block; }
    .preview-mobile-menu, .preview-mobile-mask { display: block; }
    .preview-inquiry { height: 34px; min-width: 94px; font-size: 13px; }
    .preview-lang, .preview-search { border-color: #d7e2ec; }
    .preview-hero__arrow { width: 42px; height: 42px; font-size: 32px; }
    .preview-hero__arrow--prev { left: 16px; }
    .preview-hero__arrow--next { right: 16px; }
    .preview-hero__dots { bottom: 24px; }
    .preview-hero__dots button { width: 28px; }
    .preview-hero__dots button.is-active { width: 48px; }
    .preview-hero { min-height: 680px; }
    .preview-hero:after { display: none; }
    .preview-strip, .preview-product-grid, .preview-detail-card, .preview-card-grid, .preview-tech-grid, .preview-about, .preview-honor-grid, .preview-news-list, .preview-careers, .preview-contact__grid, .preview-check-grid, .preview-workflow__grid { grid-template-columns: 1fr; }
    .preview-strip { margin-top: 0; }
    .preview-strip article { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.26); }
    .preview-section, .preview-blue, .preview-honors, .preview-contact { padding-top: 56px; padding-bottom: 56px; }
    .preview-title { height: 82px; margin-bottom: 28px; line-height: 90px; }
    .preview-title span { font-size: 46px; }
    .preview-title--structure span, .preview-title--applications span, .preview-title--technology span { font-size: 38px; }
    .preview-title--about span { font-size: 42px; }
    .preview-title h2 { font-size: 28px; }
    .preview-workflow { padding-top: 0; }
    .preview-workflow__grid article, .preview-workflow__grid article:nth-child(2) { border-right: 0; border-bottom: 1px solid var(--line); }
    .preview-workflow__grid article:after { display: none; }
    .preview-about__images img, .preview-about__images img:first-child { height: 220px; grid-row: auto; }
    .preview-contact__info, .preview-form, .preview-detail-card { padding: 24px; }
}

/* =========================================================================
   Target-site block (hualun-chem) — 1:1 sections that follow the preview
   carousel, ending in the deep-blue #bottom footer.
   These styles override the preview design language with the target's
   #005aad navy + #f1f5f9 paper system.
   ========================================================================= */
.xy-preview .cle { clear: both; }
.xy-preview .wm { margin: 0 8%; }
.xy-preview .wm2 { margin: 0 8%; }
@media (max-width: 1440px) { .xy-preview .wm { margin: 0 2%; } }
/* Align inner-page actions margin-left with home (.xy-ref-a scoped rule in preview-a.css) so the logo↔menu distance matches */
@media (max-width: 1440px) { .preview-header__actions { margin-left: 20px; gap: 14px; } .preview-inquiry { min-width: 96px; padding: 0 14px; } }

/* =====================  ban_bot - main products strip  ===================== */
.xy-preview .ban_bot { border-bottom: 1px solid #d8d8d8; padding: 20px; }
.xy-preview .ban_bot ul li { float: left; margin-right: 15px; font-size: 15px; }
.xy-preview .ban_bot ul li:nth-child(1) { margin-right: 0; }
.xy-preview .ban_bot ul li strong { color: #004a99; }
.xy-preview .ban_bot ul li a:hover { color: #005aad; }

/* =====================  Titles (.tit / .tit2 / .tit3)  ===================== */
.xy-preview .tit { width: 100%; height: 115px; line-height: 125px; overflow: hidden; text-align: center; position: relative; }
.xy-preview .tit span { font-size: 80px; font-family: Arial; color: #e8eef4; font-weight: bold; text-transform: uppercase; position: relative; -webkit-mask-image: linear-gradient(to bottom, #000 0%, #000 56%, rgba(0,0,0,.62) 78%, rgba(0,0,0,.18) 100%); mask-image: linear-gradient(to bottom, #000 0%, #000 56%, rgba(0,0,0,.62) 78%, rgba(0,0,0,.18) 100%); }
.xy-preview .tit span:after { content: ""; width: 100%; height: 50%; background: linear-gradient(to bottom, rgba(255,255,255,.5), #fff); position: absolute; left: 0; bottom: 0; }
.xy-preview .tit h4 { width: 100%; overflow: hidden; font-size: 40px; line-height: 1.2; color: #2c3441; position: absolute; bottom: 0; text-align: center; }
.xy-preview .tit2 { text-align: center; font-size: 16px; line-height: 32px; padding-top: 25px; }
.xy-preview .tit3 span { font-size: 34px; color: #fff; font-family: Arial; text-align: center; display: block; }
.xy-preview .tit3 h4 { font-size: 42px; color: #fff; text-align: center; }
.xy-preview .tit3 p { max-width: 980px; margin: 0 auto; text-align: center; color: #fff; padding-top: 15px; font-size: 16px; line-height: 30px; }

/* =====================  con_01 - Products  ===================== */
.xy-preview .con_01 { width: 100%; overflow: hidden; padding: 60px 0 70px 0; border-bottom: 1px solid #eaeaea; }
.xy-preview .con_01 ul { margin-top: 40px; }
.xy-preview .con_01 ul li { float: left; width: 23%; margin: 1%; }
.xy-preview .con_01 ul li .cptu { overflow: hidden; }
.xy-preview .con_01 ul li .cptu img { width: 100%; height: auto; transition: all 1s; }
.xy-preview .con_01 ul li .cptu:hover img { transform-origin: center center; transform: scale(1.15, 1.15); }
.xy-preview .con_01 ul li .cptop { padding: 18px 0; border-bottom: 1px solid #004a99; margin-bottom: 12px; }
.xy-preview .con_01 ul li .cptop h2 { font-size: 18px; color: #004a99; font-weight: bold; }
.xy-preview .con_01 ul li .cptop .fr { color: #004a99; }
.xy-preview .con_01 ul li .cptop a { display: block; }
.xy-preview .con_01 ul li .cplb { border-bottom: 1px solid #f2f2f2; line-height: 40px; display: flex; align-items: center; }
.xy-preview .con_01 ul li .cplb .yuandian { color: #004a99; flex: 0 0 16px; }
.xy-preview .con_01 ul li .cplb .ming { padding-left: 5px; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.xy-preview .con_01 ul li .cplb .ming a { color: #2c3441; }
.xy-preview .con_01 ul li .cplb .ming a:hover { color: #005aad; }
.xy-preview .con_01 ul li .cplb .fr { color: #888; }

/* =====================  con_02 - Qualifications  ===================== */
.xy-preview .con_02 { width: 100%; overflow: hidden; padding-top: 70px; padding-bottom: 120px; background: url(../../uploads/hualun/Html/images/bg01.jpg) no-repeat top center; background-size: cover; }
.xy-preview .con_02 ul { margin-top: 40px; }
.xy-preview .con_02 ul li { float: left; width: 18%; margin: 1%; text-align: center; }
.xy-preview .con_02 ul li .pic { background: #f4f7f9; position: relative; display: block; }
.xy-preview .con_02 ul li .pic:after { content: ""; display: block; width: 0%; height: 3px; background-color: #005aad; position: absolute; left: 0; bottom: 0; transition: all .5s; }
.xy-preview .con_02 ul li:hover .pic:after { width: 100%; }
.xy-preview .con_02 ul li .pic img { max-width: 100%; height: 130px; object-fit: contain; }
.xy-preview .con_02 ul li .txt { line-height: 40px; font-size: 16px; color: #2c3441; }

/* =====================  con_03 - About us  ===================== */
.xy-preview .con_03 { width: 100%; overflow: hidden; padding: 90px 0; background: #f1f5f9; }
.xy-preview .con_03 .about_l { float: left; width: 41%; overflow: hidden; }
.xy-preview .con_03 .about_l img { width: 100%; height: auto; transition: all 1s; }
.xy-preview .con_03 .about_l:hover img { transform-origin: center center; transform: scale(1.15, 1.15); }
.xy-preview .con_03 .about_r { float: right; width: 55%; }
.xy-preview .con_03 .about_r h1 { font-size: 34px; font-weight: bold; color: #9f9f9f; }
.xy-preview .con_03 .about_r h1 span { color: #005aad; }
.xy-preview .con_03 .about_r h2 { font-size: 34px; display: block; padding-top: 15px; color: #000; }
.xy-preview .con_03 .about_r .txt { font-size: 16px; line-height: 36px; margin-top: 40px; }
.xy-preview .con_03 .about_r .more { border-top-right-radius: 20px; border-bottom-left-radius: 20px; background: #005aad; width: 180px; height: 44px; text-align: center; line-height: 44px; margin-top: 50px; display: inline-block; }
.xy-preview .con_03 .about_r .more:hover { background: #0662af; }
.xy-preview .con_03 .about_r .more a { font-size: 16px; color: #fff; }
.xy-preview .con_03 .about_r .more a:hover { font-weight: bold; }

/* Focus carousel (koala tabs shim) */
.xy-preview .focus { position: relative; width: 100%; height: 400px; }
.xy-preview .focus img { width: 100%; height: 400px; object-fit: cover; }
.xy-preview .focus .fPic { position: relative; width: 100%; }
.xy-preview .focus .fcon { position: relative; width: 100%; }
.xy-preview .focus .fbg { bottom: 20px; position: absolute; height: 21px; text-align: center; z-index: 200; width: 50%; margin: 0 auto; left: 25%; }
.xy-preview .focus .fbg > div { margin: 4px auto 0; overflow: hidden; height: 14px; display: inline-block; }
.xy-preview .focus .D1fBt a { position: relative; display: inline-block; width: 12px; height: 12px; margin: 0 5px; text-decoration: none; float: left; background: #D9D9D9; border-radius: 50px; }
.xy-preview .focus .D1fBt a.current, .xy-preview .focus .D1fBt a:hover { background: #005faf; }
.xy-preview .focus .D1fBt i { display: none; font-style: normal; }
.xy-preview .focus .prev, .xy-preview .focus .next { position: absolute; width: 40px; height: 74px; background: url(../../uploads/hualun/Html/images/focus_btn.png) no-repeat; top: 50%; margin-top: -37px; cursor: pointer; }
.xy-preview .focus .prev { left: 0; background-position: 0 -74px; }
.xy-preview .focus .next { right: 0; background-position: -40px -74px; }
.xy-preview .focus .prev:hover { background-position: 0 0; }
.xy-preview .focus .next:hover { background-position: -40px 0; }

.xy-preview .con_03 .ul-num { margin-top: 50px; clear: both; }
.xy-preview .ul-num li { float: left; width: 24.4%; border-right: 1px solid #d7d7d7; text-align: center; }
.xy-preview .ul-num li:last-child { border-right: none; }
.xy-preview .ul-num li dl dt { font-size: 18px; }
.xy-preview .ul-num li dl dd { font-size: 16px; padding-top: 5px; }
.xy-preview .ul-num span { font-size: 58px; font-family: Arial, Helvetica, sans-serif; position: relative; line-height: 1; margin-bottom: 5px; color: #0662af; font-weight: bold; display: inline-block; }
.xy-preview .ul-num p { font-size: 16px; padding-left: 30px; }

/* =====================  con_04 - "Why choose us" blue band  ===================== */
.xy-preview .con_04 { width: 100%; overflow: hidden; background: #005aad; }
.xy-preview .con_04 .bt { width: 600px; max-width: 86%; margin: 50px auto; text-align: center; border: 1px solid #fff; padding: 15px 0; background: #005aad; z-index: 9999; margin-top: -55px; position: relative; }
.xy-preview .con_04 .bt .lm_01 { font-size: 20px; color: #a7b6d6; font-family: Arial; }
.xy-preview .con_04 .bt .lm_02 { font-size: 32px; color: #fff; }
.xy-preview .con_04 .bt .lm_02 em, .xy-preview .con_04 .bt .lm_02 span { color: #fffc25; font-style: normal; }
.xy-preview .con_04 .line { background: #fff; height: 1px; width: 60%; margin: 105px 20% 0; }

/* =====================  con_05 - 6 advantage tiles  ===================== */
.xy-preview .con_05 { width: 100%; overflow: hidden; margin-top: 60px; padding-bottom: 90px; }
.xy-preview .con_05 ul li { float: left; background: #f1f5f9; height: 220px; width: 31%; margin: 1%; padding: 30px 1%; text-align: center; position: relative; display: block; }
.xy-preview .con_05 ul li .pic img { transition: all .4s linear; }
.xy-preview .con_05 ul li:hover .pic img { transform: rotateY(180deg); }
.xy-preview .con_05 ul li .lm_t { font-size: 22px; font-weight: 600; text-transform: capitalize; margin-bottom: 13px; color: #093258; margin-top: 20px; }
.xy-preview .con_05 ul li:hover .lm_t { color: #005aad; }
.xy-preview .con_05 ul li .box { font-size: 15px; line-height: 26px; display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; overflow: hidden; text-overflow: ellipsis; }
.xy-preview .con_05 ul li:after { content: ""; display: block; width: 0%; height: 3px; background-color: #005aad; position: absolute; left: 0; bottom: 0; transition: all .5s; }
.xy-preview .con_05 ul li:hover:after { width: 100%; }

/* =====================  con_06 - Honors  ===================== */
.xy-preview .con_06 { width: 100%; overflow: hidden; background: url(../../uploads/hualun/Html/images/index_11.jpg) no-repeat top center fixed; background-size: cover; margin-bottom: 80px; padding: 70px 0; }
.xy-preview .con_06 ul { margin-top: 50px; }
.xy-preview .con_06 ul li { width: 23%; margin: 0 1%; float: left; overflow: hidden; }
.xy-preview .con_06 ul li img { width: 100%; height: 260px; object-fit: cover; transition: all 1s; }
.xy-preview .con_06 ul li:hover img { transform-origin: center center; transform: scale(1.10, 1.10); }
.xy-preview .con_06 .gd { width: 250px; margin: 52px auto 0; height: 46px; line-height: 46px; border-top: 1px solid #fff; border-bottom: 1px solid #fff; text-align: center; }
.xy-preview .con_06 .gd a { color: #fff; font-size: 16px; }
.xy-preview .con_06 .gd:hover a { font-weight: bold; }

/* =====================  part5 - News  ===================== */
.xy-preview .part5 { margin-bottom: 86px; }
.xy-preview .part5 .gs_new { width: 40%; float: left; overflow: hidden; }
.xy-preview .part5 .n_bt { background: url(../../uploads/hualun/Html/images/pnewbg_03.jpg) repeat-x; height: 30px; margin-bottom: 25px; }
.xy-preview .part5 .n_bt .tpleft { background: #fff; color: #000; font-size: 24px; padding-right: 15px; line-height: 30px; }
.xy-preview .part5 .n_bt a.more { background: #fff url(../../uploads/hualun/Html/images/grayjt_19.png) right no-repeat; color: #b2b2b2; font-size: 14px; padding-right: 22px; float: right; line-height: 30px; padding-left: 15px; }
.xy-preview .part5 .gs_new .tou { border-bottom: 1px #d4d4d4 dotted; padding-bottom: 30px; margin-bottom: 20px; }
.xy-preview .part5 .gs_new .tou .photo { margin-bottom: 28px; }
.xy-preview .part5 .gs_new .tou .photo img { width: 100%; height: 260px; object-fit: cover; }
.xy-preview .part5 .gs_new .tou .title a { margin-bottom: 13px; display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-size: 19px; color: #47484a; }
.xy-preview .part5 .gs_new .tou .title a:hover { color: #005aad; }
.xy-preview .part5 .gs_new ul li a { display: block; background: url(../../uploads/hualun/Html/images/newtb_14.png) left no-repeat; color: #47484a; font-size: 16px; line-height: 42px; padding-left: 19px; }
.xy-preview .part5 .gs_new ul li a .date { color: #b9b8b8; font-size: 14px; float: right; }
.xy-preview .part5 .gs_new ul li a:hover { background: url(../../uploads/hualun/Html/images/newtb_12.png) left no-repeat; color: #2a5369; }
.xy-preview .part5 .hy_new { width: 55%; float: right; overflow: hidden; }
.xy-preview .part5 .hy_new .newsr { background: #f1f5f9; padding: 20px 40px; }
.xy-preview .part5 .hy_new .op ul li { margin: 20px 0; overflow: hidden; }
.xy-preview .part5 .hy_new .op ul li .pic { float: left; width: 22%; }
.xy-preview .part5 .hy_new .op ul li .pic img { width: 100%; height: auto; }
.xy-preview .part5 .hy_new .op ul li .zw { float: right; width: 74%; }
.xy-preview .part5 .hy_new .op ul li .zw .bt { font-size: 20px; color: #000; }
.xy-preview .part5 .hy_new .op ul li .zw .bt:hover { color: #005aad; }
.xy-preview .part5 .hy_new .op ul li .zw .js { padding-top: 15px; color: #707275; font-size: 14px; line-height: 22px; }
.xy-preview .part5 .hy_new .news { border-top: 1px dotted #ddd; margin-top: 30px; }
.xy-preview .part5 .hy_new .news ul { margin-top: 10px; }
.xy-preview .part5 .hy_new .news ul li a { display: block; background: url(../../uploads/hualun/Html/images/newtb_14.png) left no-repeat; color: #47484a; font-size: 16px; line-height: 42px; padding-left: 19px; }
.xy-preview .part5 .hy_new .news ul li a .date { color: #b9b8b8; font-size: 14px; float: right; }
.xy-preview .part5 .hy_new .news ul li a:hover { background: url(../../uploads/hualun/Html/images/newtb_12.png) left no-repeat; color: #2a5369; }

/* =====================  #go_top  ===================== */
.xy-preview #go_top { position: fixed; right: 10px; bottom: 60px; z-index: 99; width: 60px; }
.xy-preview #go_top a.t1 { background: #2359A2 url(../../uploads/hualun/Html/images/top1.png) no-repeat center; text-decoration: none; display: block; height: 60px; border-radius: 2px; }
.xy-preview #go_top a.t1:hover { background: #A6CE38 url(../../uploads/hualun/Html/images/top1.png) no-repeat center; }
.xy-preview #go_top a.t2 { background: #0662af url(../../uploads/hualun/Html/images/ft1.png) no-repeat center; text-decoration: none; display: block; height: 60px; border-radius: 2px; margin-top: 5px; }

/* =====================  #go_top2  (target site extra mobile button, 1:1) ===================== */
.xy-preview #go_top2 { position: fixed; right: 10px; bottom: 60px; z-index: 99; width: 60px; }
.xy-preview #go_top2 a.t1 { background: #2359A2 url(../../uploads/hualun/Html/images/top1.png) no-repeat center; text-decoration: none; display: block; height: 60px; border-radius: 2px; }
.xy-preview .right-btn-group { width: 60px; margin: 5px 0; }
.xy-preview .right-btn-group .to-top { width: 60px; height: 60px; }
.xy-preview .right-btn-group .to-top a { border-radius: 2px; display: block; width: 60px; height: 60px; background: #2359A2 url(../../uploads/hualun/Html/images/tel.png) no-repeat center; }
.xy-preview .right-btn-group .to-top a:hover { background: #A6CE38 url(../../uploads/hualun/Html/images/tel.png) no-repeat center; }
.xy-preview .right-btn-group .to-top span { display: none; position: absolute; width: 190px; height: 60px; top: 0; left: -190px; z-index: 5; color: #686868; background-color: #fff; text-align: center; font-size: 14px; line-height: 60px; box-shadow: 0 0 5px #ccc; }
.xy-preview .right-btn-group .to-top:hover span { display: block; }
.xy-preview .right-btn-group .to-top span:after { content: " "; position: absolute; top: 25px; right: -10px; width: 1px; height: 1px; display: block; z-index: 5; border-bottom: 5px transparent dashed; border-left: 5px #fff solid; border-right: 5px transparent dashed; border-top: 5px transparent dashed; }
.xy-preview .right-btn-group .to-top2 { width: 60px; height: 60px; margin-top: 5px; }
.xy-preview .right-btn-group .to-top2 a { border-radius: 2px; display: block; width: 60px; height: 60px; background: #2359A2 url(../../uploads/hualun/Html/images/mail.png) no-repeat center; }
.xy-preview .right-btn-group .to-top2 a:hover { background: #A6CE38 url(../../uploads/hualun/Html/images/mail.png) no-repeat center; }
.xy-preview .right-btn-group .to-top2 span { display: none; position: absolute; width: 190px; height: 60px; top: 65px; left: -190px; z-index: 5; color: #686868; background-color: #fff; text-align: center; font-size: 14px; line-height: 60px; box-shadow: 0 0 5px #ccc; }
.xy-preview .right-btn-group .to-top2:hover span { display: block; }
.xy-preview .right-btn-group .to-top2 span:after { content: " "; position: absolute; top: 25px; right: -10px; width: 1px; height: 1px; display: block; z-index: 5; border-bottom: 5px transparent dashed; border-left: 5px #fff solid; border-right: 5px transparent dashed; border-top: 5px transparent dashed; }

.xy-preview #bottom { position: relative; width: 100%; overflow: hidden; padding: 68px 0 56px; color: #c7d7ef; background: linear-gradient(135deg, #082b54 0%, #014d91 58%, #0265a8 100%); }
.xy-preview #bottom:before { content: ""; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(circle at 12% 18%, rgba(166,206,56,.16), transparent 28%), linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px); background-size: auto, 42px 42px; opacity: .8; }
.xy-preview #bottom .wm { position: relative; z-index: 1; }
.xy-preview #bottom a { color: #dbeaff; }
.xy-preview #bottom a:hover { color: #fff; }
.xy-preview .xy-footer-main { display: grid; grid-template-columns: minmax(230px, 1.45fr) repeat(4, minmax(110px, 1fr)) minmax(180px, 1.05fr); gap: 28px; align-items: start; }
.xy-preview .xy-footer-brand h2 { margin: 0; color: #fff; font-size: 20px; font-weight: 700; letter-spacing: .03em; }
.xy-preview .xy-footer-slogan { margin: 12px 0 22px; color: #a6ce38; font-size: 13px; letter-spacing: .05em; }
.xy-preview .xy-footer-contact { display: grid; gap: 10px; }
.xy-preview .xy-footer-contact p { display: grid; grid-template-columns: 42px 1fr; gap: 10px; margin: 0; line-height: 1.7; font-size: 13px; }
.xy-preview .xy-footer-contact strong { color: #fff; font-weight: 600; }
.xy-preview .xy-footer-nav { display: contents; }
.xy-preview .xy-footer-col h3, .xy-preview .xy-footer-meta h3 { margin: 0 0 18px; color: #fff; font-size: 16px; font-weight: 700; }
.xy-preview .xy-footer-col ul { margin: 0; padding: 0; list-style: none; }
.xy-preview .xy-footer-col li { margin: 0 0 10px; color: #c7d7ef; font-size: 13px; line-height: 1.68; }
.xy-preview .xy-footer-col li a { color: #c7d7ef; }
.xy-preview .xy-footer-col li a:hover { color: #a6ce38; }
.xy-preview .xy-footer-meta p { margin: 0 0 11px; color: #b5c9e5; font-size: 13px; line-height: 1.7; }
.xy-preview .bot_contact, .xy-preview .bot_02 { display: none; }

/* =====================  Mobile bottom nav  ===================== */
.xy-preview .mbfor { display: none; }
.xy-preview .mbfor .tbottom { position: fixed; left: 0; bottom: 0; z-index: 99; width: 100%; height: 60px; background: rgba(0,0,0,0); }
.xy-preview #BottomNav { position: fixed; left: 0; bottom: 0; z-index: 999; width: 100%; background: #fff; box-shadow: 0 -2px 8px rgba(0,0,0,.08); }
.xy-preview #BottomNav ul { display: flex; align-items: center; justify-content: space-around; height: 60px; }
.xy-preview #BottomNav ul li { flex: 1; text-align: center; }
.xy-preview #BottomNav ul li a { display: block; padding: 8px 0; font-size: 12px; color: #5b6b78; }
.xy-preview #BottomNav ul li p.icon { width: 30px; height: 30px; margin: 0 auto 4px; border-radius: 50%; background-color: #005aad; background-position: center center; background-repeat: no-repeat; background-size: 16px 16px; }
.xy-preview #BottomNav ul li p.a { background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><path d='M3 11l9-8 9 8'/><path d='M5 10v10h14V10'/></svg>"); }
.xy-preview #BottomNav ul li p.b { background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><circle cx='12' cy='12' r='9'/><path d='M12 11v5'/><circle cx='12' cy='8' r='0.6' fill='%23ffffff' stroke='none'/></svg>"); }
.xy-preview #BottomNav ul li p.c { background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><path d='M21 8.5L12 3 3 8.5 12 14l9-5.5z'/><path d='M3 8.5V17l9 5 9-5V8.5'/><path d='M12 14v8'/></svg>"); }
.xy-preview #BottomNav ul li p.d { background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><path d='M5 4h4l2 5-2.5 1.5a11 11 0 0 0 5 5L20 13l2 5v3a2 2 0 0 1-2 2A16 16 0 0 1 4 6a2 2 0 0 1 1-2z'/></svg>"); }

/* =====================  Responsive (target-site)  ===================== */
@media (max-width: 1080px) {
    .xy-preview .con_01 ul li, .xy-preview .con_02 ul li, .xy-preview .con_05 ul li, .xy-preview .con_06 ul li { width: 46%; margin: 2%; }
    .xy-preview .con_03 .about_l, .xy-preview .con_03 .about_r { width: 100%; float: none; }
    .xy-preview .con_03 .about_r { margin-top: 30px; }
    .xy-preview .focus, .xy-preview .focus img { height: 240px; }
    .xy-preview .con_04 .bt { width: 86%; padding: 12px 0; }
    .xy-preview .con_04 .bt .lm_02 { font-size: 22px; }
    .xy-preview .part5 .gs_new, .xy-preview .part5 .hy_new { width: 100%; float: none; margin-bottom: 20px; }
    .xy-preview #bottom { padding: 36px 0 88px; }
    .xy-preview .xy-footer-main { grid-template-columns: 1fr; gap: 34px; }
    .xy-preview .xy-footer-nav { display: grid; grid-template-columns: repeat(2, minmax(130px, 1fr)); gap: 24px; }
    .xy-preview .xy-footer-brand h2 { font-size: 23px; }
    .xy-preview .xy-footer-contact p { grid-template-columns: 58px 1fr; }
    /* Keep floating phone/email/back-top buttons visible on mobile, above the bottom nav (#BottomNav = 60px). */
    .xy-preview #go_top { display: block; right: 14px; bottom: 74px; width: 48px; padding: 6px 0; }
    .xy-preview #go_top a.t1 { width: 40px; height: 40px; margin: 6px auto; }
    .xy-preview .right-btn-group { width: 48px; margin: 0; }
    .xy-preview .right-btn-group .to-top, .xy-preview .right-btn-group .to-top2 { width: 48px; height: 48px; }
    .xy-preview .right-btn-group .to-top a, .xy-preview .right-btn-group .to-top2 a { width: 40px; height: 40px; margin: 4px auto; }
    .xy-preview .right-btn-group .to-top span, .xy-preview .right-btn-group .to-top2 span { display: none !important; }
    .xy-preview .mbfor { display: block; }
}
@media (max-width: 640px) {
    .xy-preview .con_01 ul li, .xy-preview .con_02 ul li, .xy-preview .con_05 ul li, .xy-preview .con_06 ul li { width: 96%; margin: 2%; }
    .xy-preview .ul-num li { width: 50%; margin-bottom: 20px; }
    .xy-preview .ul-num li:nth-child(2) { border-right: none; }
    .xy-preview .part5 .hy_new .op ul li .pic { width: 32%; }
    .xy-preview .part5 .hy_new .op ul li .zw { width: 64%; }
    .xy-preview .xy-footer-nav { grid-template-columns: 1fr; }
}

/* =====================  Floating buttons (#go_top) - new style, shared across pages  ===================== */
/* Mirrors the .xy-ref-a scoped rules in preview-a.css so inner pages match the home page's floating buttons. */
    #go_top { right: 22px; bottom: 86px; width: 58px; z-index: 120; padding: 8px 0; border: 1px solid rgba(255,255,255,.58); border-radius: 999px; background: rgba(255,255,255,.78); box-shadow: 0 18px 44px rgba(7,48,74,.18); backdrop-filter: blur(14px); }
    .right-btn-group { width: 58px; margin: 0; }
    .right-btn-group .to-top, .right-btn-group .to-top2 { position: relative; width: 58px; height: 58px; margin: 0; }
    .right-btn-group .to-top2 { margin-top: 4px; }
    #go_top a.t1, .right-btn-group .to-top a, .right-btn-group .to-top2 a { position: relative; display: block; width: 46px; height: 46px; margin: 6px auto; border-radius: 50%; background: linear-gradient(135deg, #0a6e9e, #16b5b0); box-shadow: 0 10px 24px rgba(10,110,158,.22); transition: transform .22s ease, box-shadow .22s ease, background .22s ease; }
    #go_top a.t1 { margin-top: 10px; }
    #go_top a.t1:hover, .right-btn-group .to-top a:hover, .right-btn-group .to-top2 a:hover { background: linear-gradient(135deg, #07304a, #0a6e9e); box-shadow: 0 14px 30px rgba(7,48,74,.28); transform: translateY(-2px); }
    .right-btn-group .to-top a:before, .right-btn-group .to-top2 a:before, #go_top a.t1:before { content: ""; position: absolute; left: 50%; top: 50%; width: 18px; height: 18px; transform: translate(-50%, -50%); background: none; }
    .right-btn-group .to-top a:before { width: 23px; height: 23px; background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23fff' d='M6.62 10.79c1.44 2.83 3.76 5.15 6.59 6.59l2.2-2.2c.28-.28.67-.36 1.03-.25 1.13.37 2.35.57 3.56.57.55 0 1 .45 1 1V20c0 .55-.45 1-1 1C10.61 21 3 13.39 3 4c0-.55.45-1 1-1h3.5c.55 0 1 .45 1 1 0 1.21.2 2.43.57 3.56.11.36.03.75-.25 1.03l-2.2 2.2Z'/%3E%3C/svg%3E") center / contain no-repeat; }
    .right-btn-group .to-top a:after { display: none; }
    .right-btn-group .to-top2 a:before { width: 22px; height: 16px; border: 2px solid #fff; border-radius: 3px; }
    .right-btn-group .to-top2 a:after { content: ""; position: absolute; left: 13px; top: 18px; width: 18px; height: 18px; border-left: 2px solid #fff; border-top: 2px solid #fff; transform: rotate(45deg) skew(-8deg, -8deg); transform-origin: center; }
    #go_top a.t1:before { width: 13px; height: 13px; border-left: 2px solid #fff; border-top: 2px solid #fff; transform: translate(-50%, -35%) rotate(45deg); }
    #go_top a.t1:after { content: ""; position: absolute; left: 50%; top: 17px; width: 2px; height: 16px; border-radius: 999px; background: #fff; transform: translateX(-50%); }
    .right-btn-group .to-top span, .right-btn-group .to-top2 span { display: block; position: absolute; top: 6px; right: 64px; left: auto; width: auto; min-width: 158px; height: 46px; padding: 0 18px; color: #07304a; border: 1px solid rgba(10,110,158,.13); border-radius: 999px; background: rgba(255,255,255,.96); box-shadow: 0 14px 36px rgba(7,48,74,.15); font-size: 14px; line-height: 46px; text-align: center; white-space: nowrap; opacity: 0; pointer-events: none; transform: translateX(10px); transition: opacity .2s ease, transform .2s ease; }
    .right-btn-group .to-top:hover span, .right-btn-group .to-top2:hover span { opacity: 1; transform: translateX(0); }
    .right-btn-group .to-top span:after, .right-btn-group .to-top2 span:after { content: ""; position: absolute; top: 18px; right: -6px; width: 10px; height: 10px; border: 0; border-right: 1px solid rgba(10,110,158,.13); border-top: 1px solid rgba(10,110,158,.13); background: rgba(255,255,255,.96); transform: rotate(45deg); }
@media (max-width: 1080px) {
    /* Keep floating phone/email/back-top buttons visible on mobile, above the bottom nav (#BottomNav = 60px). */
    #go_top { right: 14px; bottom: 74px; width: 48px; padding: 6px 0; }
    #go_top a.t1 { width: 40px; height: 40px; margin: 6px auto; }
    .right-btn-group { width: 48px; margin: 0; }
    .right-btn-group .to-top, .right-btn-group .to-top2 { width: 48px; height: 48px; }
    .right-btn-group .to-top a, .right-btn-group .to-top2 a { width: 40px; height: 40px; margin: 4px auto; }
    .right-btn-group .to-top span, .right-btn-group .to-top2 span { display: none !important; }
}

/* 全站隐藏导航栏搜索框（桌面放大镜 + 移动端搜索入口） */
.preview-search,
.preview-mobile-menu__search { display: none !important; }