* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: Arial, "Microsoft YaHei", sans-serif; color: #202b3d; background: #f5f7fb; letter-spacing: 0; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { margin: 0; padding: 0; list-style: none; }
.tech-page { min-height: 100vh; background: #f5f7fb; }
.tech-shell { width: min(1200px, calc(100% - 32px)); margin: 0 auto; }
.tech-top { background: #f8fbff; color: #5e6c84; font-size: 13px; border-bottom: 1px solid #e5edf7; }
.tech-top .tech-shell { min-height: 38px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.tech-top a { color: #1c6cff; font-weight: 700; }
.tech-header { position: sticky; top: 0; z-index: 20; background: #fff; border-bottom: 1px solid #e5edf7; box-shadow: 0 8px 22px rgba(24,45,80,.06); }
.tech-nav { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.tech-brand { display: flex; align-items: center; min-width: 0; gap: 12px; }
.tech-logo { width: 46px; height: 46px; border-radius: 8px; display: grid; place-items: center; background: #1c6cff; color: #fff; font-weight: 800; box-shadow: 0 10px 22px rgba(28,108,255,.22); }
.tech-brand h1 { margin: 0; font-size: 22px; line-height: 1.25; color: #122545; font-weight: 800; max-width: 520px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tech-brand p { margin: 4px 0 0; color: #748198; font-size: 13px; }
.tech-menu { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; justify-content: flex-end; }
.tech-menu a { min-height: 36px; display: inline-flex; align-items: center; padding: 0 12px; border-radius: 6px; color: #32445f; font-size: 14px; font-weight: 700; }
.tech-menu a:hover, .tech-menu .active { color: #1c6cff; background: #eef5ff; }
.tech-phone { color: #fff !important; background: #ff6a00 !important; box-shadow: 0 10px 20px rgba(255,106,0,.2); }
.tech-btn { min-height: 44px; padding: 0 22px; border-radius: 6px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-weight: 800; border: 1px solid transparent; line-height: 1.2; }
.tech-btn.primary { color: #fff; background: #1c6cff; box-shadow: 0 14px 28px rgba(28,108,255,.22); }
.tech-btn.secondary { color: #1c6cff !important; border-color: #bfdbff !important; background: #f0f6ff !important; }
.hero { position: relative; min-height: 600px; overflow: hidden; color: #fff; background: #0f52d7; }
.hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: .34; transform: scale(1.02); transition: background-image .35s ease, opacity .35s ease; }
.hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(110deg, rgba(18,99,247,.98), rgba(25,129,255,.88) 52%, rgba(30,144,255,.58)); }
.hero::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 112px; background: linear-gradient(180deg, rgba(245,247,251,0), #f5f7fb); }
.hero-inner { position: relative; z-index: 2; min-height: 600px; display: grid; grid-template-columns: minmax(0, 1fr) 390px; align-items: center; gap: 42px; padding: 64px 0 116px; }
.hero-kicker { width: fit-content; background: rgba(255,255,255,.16); color: #eaf4ff; padding: 8px 12px; border: 1px solid rgba(255,255,255,.34); border-radius: 999px; font-size: 14px; font-weight: 800; }
.hero-title { margin: 18px 0 14px; max-width: 800px; font-size: 46px; line-height: 1.16; font-weight: 900; }
.hero-copy { margin: 0; max-width: 760px; color: #edf6ff; font-size: 16px; line-height: 1.86; }
.hero-actions { margin-top: 22px; display: flex; flex-wrap: wrap; gap: 12px; }
.hero .tech-btn.primary { color: #fff; background: #ff6a00; box-shadow: 0 14px 28px rgba(255,106,0,.25); }
.hero .tech-btn.secondary { color: #fff !important; border-color: rgba(255,255,255,.55) !important; background: rgba(255,255,255,.12) !important; }
.market-search { margin-top: 22px; max-width: 720px; min-height: 58px; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 12px; padding: 8px 8px 8px 18px; border-radius: 8px; background: #fff; box-shadow: 0 16px 40px rgba(8,45,112,.18); color: #263750; }
.market-search span { display: inline-flex; align-items: center; height: 34px; padding: 0 12px; border-radius: 6px; background: #eef5ff; color: #1c6cff; font-size: 13px; font-weight: 800; white-space: nowrap; }
.market-search strong { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 15px; }
.market-search a { height: 42px; display: inline-flex; align-items: center; justify-content: center; padding: 0 18px; border-radius: 6px; background: #1c6cff; color: #fff; font-weight: 800; white-space: nowrap; }
.hero-panel { background: #fff; color: #263750; border-radius: 8px; padding: 24px; box-shadow: 0 22px 58px rgba(8,45,112,.18); border: 1px solid #dbe8fa; }
.hero-panel h2 { margin: 0 0 12px; font-size: 18px; color: #122545; }
.hero-panel .panel-copy { color: #63738d; line-height: 1.78; font-size: 14px; }
.hero-panel .panel-copy p { margin: 0; }
.hero-data { margin-top: 18px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.hero-data span { display: block; padding: 13px; border-radius: 8px; background: #f6f9ff; border: 1px solid #e0ebfb; color: #52637d; }
.hero-data strong { display: block; font-size: 22px; color: #1c6cff; margin-bottom: 4px; }
.hero-thumbs { position: relative; z-index: 3; margin-top: -62px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.hero-thumb { height: 124px; border-radius: 8px; overflow: hidden; border: 4px solid #fff; background: #e8f1ff; box-shadow: 0 16px 36px rgba(24,45,80,.12); cursor: pointer; transition: transform .2s ease, box-shadow .2s ease; }
.hero-thumb.active { transform: translateY(-4px); box-shadow: 0 20px 48px rgba(28,108,255,.22); }
.hero-thumb img { width: 100%; height: 100%; object-fit: cover; }
.sub-hero { position: relative; overflow: hidden; color: #fff; background: #0f52d7; }
.sub-hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: .32; transform: scale(1.02); }
.sub-hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(110deg, rgba(18,99,247,.98), rgba(26,126,255,.82)); }
.sub-hero::after { content: ""; position: absolute; inset: auto 0 0 0; height: 86px; background: linear-gradient(180deg, rgba(245,247,251,0), #f5f7fb); }
.sub-hero-inner { position: relative; z-index: 1; min-height: 330px; display: grid; align-items: center; padding: 52px 0 92px; }
.sub-kicker { width: fit-content; background: rgba(255,255,255,.16); color: #edf6ff; padding: 8px 12px; border: 1px solid rgba(255,255,255,.34); border-radius: 999px; font-size: 14px; font-weight: 800; }
.sub-title { margin: 18px 0 10px; font-size: 40px; line-height: 1.18; font-weight: 900; max-width: 850px; }
.sub-copy { margin: 0; max-width: 800px; color: #edf6ff; font-size: 16px; line-height: 1.82; }
.sub-search { margin-top: 20px; max-width: 680px; }
.section { padding: 70px 0; }
.section.compact { padding-top: 42px; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 22px; margin-bottom: 24px; padding-bottom: 14px; border-bottom: 1px solid #e5edf7; }
.section-title { margin: 0; color: #122545; font-size: 28px; line-height: 1.2; font-weight: 900; }
.section-sub { margin: 8px 0 0; color: #65738a; font-size: 15px; line-height: 1.7; max-width: 740px; }
.section-link { color: #1c6cff; font-weight: 800; white-space: nowrap; }
.product-grid, .product-list-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.product-list-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.product-card { position: relative; min-height: 252px; background: #fff; border: 1px solid #e5edf7; border-radius: 8px; overflow: hidden; box-shadow: 0 8px 24px rgba(24,45,80,.06); transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease; }
.product-card::after { content: "询价"; position: absolute; right: 12px; top: 12px; height: 28px; padding: 0 10px; display: inline-flex; align-items: center; border-radius: 5px; background: #ff6a00; color: #fff; font-size: 12px; font-weight: 800; }
.product-card:hover { transform: translateY(-4px); border-color: #b8d4ff; box-shadow: 0 18px 42px rgba(28,108,255,.14); }
.product-img { aspect-ratio: 4 / 3; background: #edf3fb; overflow: hidden; }
.product-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.product-card:hover .product-img img { transform: scale(1.035); }
.product-card p { margin: 0; padding: 14px 14px 38px; font-size: 15px; line-height: 1.55; color: #243653; font-weight: 800; }
.product-card p::after { content: "源头厂家  支持定制"; position: absolute; left: 14px; bottom: 14px; color: #6f7f96; font-size: 12px; font-weight: 700; }
.video-band { padding: 52px 0; background: #0f2d63; color: #fff; position: relative; overflow: hidden; }
.video-band::before { content: ""; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(28,108,255,.45), rgba(15,45,99,0) 54%, rgba(255,106,0,.18)); pointer-events: none; }
.video-layout { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(280px, 440px) minmax(0, 1fr); gap: 26px; align-items: center; max-width: 1040px; margin: 0 auto; }
.video-main { aspect-ratio: 16 / 10; min-height: 0; background: #000; border-radius: 8px; overflow: hidden; border: 1px solid rgba(255,255,255,.18); box-shadow: 0 18px 46px rgba(0,0,0,.24); position: relative; }
.video-main video { width: 100%; height: 100%; min-height: 0; object-fit: cover; display: block; }
.video-play { position: absolute; inset: 0; display: grid; place-items: center; cursor: pointer; background: rgba(7,20,48,.18); }
.video-play img { width: 54px; height: 54px; }
.video-side { display: flex; flex-direction: column; gap: 16px; }
.video-side h2 { margin: 0; font-size: 26px; line-height: 1.22; }
.video-side p { margin: 0; color: #dceaff; line-height: 1.75; font-size: 14px; }
.video-list { display: grid; gap: 10px; max-height: 238px; overflow: auto; padding-right: 4px; }
.video-item { display: grid; grid-template-columns: 82px minmax(0, 1fr); gap: 12px; align-items: center; padding: 10px; border-radius: 8px; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.14); cursor: pointer; }
.video-item img { width: 82px; height: 58px; object-fit: cover; border-radius: 5px; background: #10224a; }
.video-item p { font-size: 13px; line-height: 1.45; color: #fff; }
.adv-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.adv-item { background: #fff; border: 1px solid #e5edf7; border-radius: 8px; padding: 22px; min-height: 184px; box-shadow: 0 8px 24px rgba(24,45,80,.06); }
.adv-icon { width: 44px; height: 44px; border-radius: 8px; display: grid; place-items: center; color: #fff; background: #1c6cff; font-weight: 900; margin-bottom: 15px; }
.adv-item h3 { margin: 0 0 9px; color: #122545; font-size: 18px; }
.adv-item p { margin: 0; color: #65738a; font-size: 14px; line-height: 1.76; }
.about-band { background: #fff; border-top: 1px solid #e5edf7; border-bottom: 1px solid #e5edf7; }
.about-layout, .about-visual { display: grid; grid-template-columns: .82fr 1.18fr; gap: 28px; align-items: center; }
.about-media { min-height: 360px; border-radius: 8px; overflow: hidden; background: #edf3fb; box-shadow: 0 10px 28px rgba(24,45,80,.08); }
.about-media img { width: 100%; height: 100%; object-fit: cover; min-height: 360px; }
.about-text, .article-body { color: #596a84; line-height: 1.92; font-size: 15px; }
.about-text strong, .article-body strong { color: #1c6cff; }
.news-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.news-card, .news-row { background: #fff; border: 1px solid #e5edf7; border-radius: 8px; box-shadow: 0 8px 22px rgba(24,45,80,.05); }
.news-card { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 72px; padding: 16px 18px; }
.news-card span, .news-date { color: #1c6cff; font-family: Arial, sans-serif; font-size: 13px; white-space: nowrap; font-weight: 800; }
.news-card span { width: 88px; }
.news-card p { margin: 0; min-width: 0; flex: 1; color: #243653; line-height: 1.55; font-weight: 800; }
.breadcrumb { margin-top: -34px; position: relative; z-index: 2; }
.breadcrumb-box { display: flex; align-items: center; gap: 8px; min-height: 54px; padding: 0 18px; background: #fff; border: 1px solid #e5edf7; border-radius: 8px; box-shadow: 0 12px 30px rgba(24,45,80,.08); color: #65738a; font-size: 14px; }
.breadcrumb-box a { color: #1c6cff; font-weight: 800; }
.content-layout { display: grid; grid-template-columns: minmax(0, 1fr) 318px; gap: 20px; align-items: start; }
.main-panel, .side-panel { background: #fff; border: 1px solid #e5edf7; border-radius: 8px; box-shadow: 0 8px 24px rgba(24,45,80,.06); }
.main-panel { padding: 22px; }
.side-panel { padding: 20px; position: sticky; top: 96px; }
.side-panel + .side-panel { margin-top: 14px; }
.side-panel h3 { margin: 0 0 12px; color: #122545; font-size: 18px; }
.side-panel p { margin: 0; color: #65738a; font-size: 14px; line-height: 1.76; }
.quick-list { display: grid; gap: 9px; }
.quick-list a { display: flex; align-items: center; justify-content: space-between; min-height: 42px; padding: 0 12px; border-radius: 6px; color: #32445f; background: #f6f9ff; border: 1px solid #e0ebfb; font-size: 14px; font-weight: 800; }
.quick-list a:hover { color: #fff; background: #1c6cff; border-color: #1c6cff; }
.news-list { display: grid; gap: 12px; }
.news-row { display: grid; grid-template-columns: 102px minmax(0, 1fr) auto; align-items: center; gap: 14px; min-height: 76px; padding: 16px 18px; }
.news-row h3 { margin: 0; min-width: 0; color: #243653; font-size: 16px; line-height: 1.55; }
.news-more { color: #ff6a00; font-size: 14px; font-weight: 800; white-space: nowrap; }
.stat-strip { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-top: 22px; }
.stat-item { padding: 18px; border-radius: 8px; background: #fff; border: 1px solid #e5edf7; color: #65738a; box-shadow: 0 8px 22px rgba(24,45,80,.05); }
.stat-item strong { display: block; margin-bottom: 5px; color: #1c6cff; font-size: 24px; }
.contact-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.contact-card { min-height: 112px; padding: 20px; border-radius: 8px; background: #fff; border: 1px solid #e5edf7; box-shadow: 0 8px 24px rgba(24,45,80,.06); }
.contact-icon { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 8px; color: #fff; background: #1c6cff; font-weight: 900; margin-bottom: 12px; }
.contact-card h3 { margin: 0 0 6px; color: #122545; font-size: 17px; }
.contact-card p { margin: 0; color: #596a84; line-height: 1.7; word-break: break-all; }
.contact-card a { color: #1c6cff; font-weight: 800; }
.area-cloud { margin-top: 22px; padding: 22px; border-radius: 8px; background: #fff; border: 1px solid #e5edf7; box-shadow: 0 8px 24px rgba(24,45,80,.06); }
.area-cloud h3 { margin: 0 0 12px; color: #122545; font-size: 18px; }
.area-group { padding: 13px 0; border-top: 1px solid #e5edf7; }
.area-group:first-of-type { border-top: 0; padding-top: 0; }
.area-group strong { display: block; margin-bottom: 10px; color: #1c6cff; }
.area-links { display: flex; flex-wrap: wrap; gap: 8px; }
.area-links a, .area-links span { display: inline-flex; align-items: center; min-height: 30px; padding: 0 10px; border-radius: 6px; background: #f6f9ff; border: 1px solid #e0ebfb; color: #52637d; font-size: 13px; }
.page-wrap { margin-top: 24px; text-align: center; color: #65738a; }
.page-wrap a, .page-wrap span, .page-wrap strong, .page-wrap em { display: inline-flex; align-items: center; justify-content: center; min-width: 34px; height: 34px; margin: 3px; padding: 0 10px; border-radius: 6px; border: 1px solid #d8e5f6; background: #fff; color: #1c6cff; font-style: normal; font-weight: 700; }
.page-wrap .page_current, .page-wrap strong { color: #fff; background: #1c6cff; border-color: #1c6cff; }
.page-wrap .paeg-info { color: #65738a; background: #f6f9ff; }
.empty-state { padding: 42px 18px; text-align: center; color: #65738a; background: #fff; border: 1px dashed #bdd2f4; border-radius: 8px; }
.friend-links { padding: 28px 0 70px; }
.friend-box { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; background: #fff; border: 1px solid #e5edf7; border-radius: 8px; padding: 16px; color: #65738a; }
.friend-box strong { color: #122545; margin-right: 4px; }
.friend-box a { color: #1c6cff; font-size: 14px; font-weight: 700; }
.footer { background: #102343; color: #cbd8eb; padding: 34px 0 86px; text-align: center; font-size: 14px; line-height: 1.85; }
.footer a { color: #fff; }
.mobile-footer { display: none; }
@media (max-width: 980px) {
    .tech-top .tech-shell { flex-direction: column; align-items: flex-start; padding: 10px 0; gap: 6px; }
    .tech-nav { align-items: flex-start; flex-direction: column; padding: 16px 0; }
    .tech-brand h1 { white-space: normal; font-size: 20px; }
    .tech-menu { justify-content: flex-start; }
    .hero, .hero-inner { min-height: auto; }
    .hero-inner { grid-template-columns: 1fr; padding: 52px 0 114px; }
    .hero-title { font-size: 36px; }
    .hero-panel { max-width: 580px; }
    .hero-thumbs, .product-grid, .product-list-grid, .adv-grid, .news-grid, .stat-strip, .contact-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .video-layout, .about-layout, .about-visual, .content-layout { grid-template-columns: 1fr; }
    .side-panel { position: static; }
}
@media (max-width: 640px) {
    .tech-shell { width: min(100% - 22px, 1200px); }
    .tech-menu { width: 100%; display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
    .tech-menu a { justify-content: center; padding: 0 8px; font-size: 13px; background: #f6f9ff; }
    .tech-phone { width: 100%; }
    .hero-title, .sub-title { font-size: 30px; }
    .hero-copy, .sub-copy { font-size: 15px; }
    .market-search { grid-template-columns: 1fr; padding: 12px; }
    .market-search span, .market-search a { width: 100%; justify-content: center; }
    .market-search strong { white-space: normal; text-align: center; }
    .hero-actions { flex-direction: column; }
    .tech-btn { width: 100%; }
    .hero-data, .hero-thumbs, .product-grid, .product-list-grid, .adv-grid, .news-grid, .stat-strip, .contact-grid { grid-template-columns: 1fr; }
    .hero-thumb { height: 96px; }
    .sub-hero-inner { min-height: 280px; padding: 44px 0 76px; }
    .section { padding: 54px 0; }
    .section-head { align-items: flex-start; flex-direction: column; }
    .breadcrumb { margin-top: -28px; }
    .breadcrumb-box { align-items: flex-start; flex-direction: column; justify-content: center; padding: 12px 14px; }
    .main-panel { padding: 16px; }
    .video-main { aspect-ratio: 16 / 10; }
    .video-item { grid-template-columns: 74px minmax(0, 1fr); }
    .video-item img { width: 74px; height: 52px; }
    .news-row { grid-template-columns: 1fr; gap: 6px; }
    .news-more { display: none; }
    .about-media, .about-media img { min-height: 240px; }
    .footer { padding-bottom: 92px; }
    .mobile-footer { display: block; position: fixed; left: 0; right: 0; bottom: 0; z-index: 30; background: #fff; border-top: 1px solid #e5edf7; }
    .mobile-footer ul { display: grid; grid-template-columns: repeat(4, 1fr); }
    .mobile-footer a { min-height: 58px; display: grid; place-items: center; color: #1c6cff; font-size: 13px; font-weight: 800; }
    .mobile-footer p { margin: 0; }
}