:root {
  --ink: #172c43;
  --muted: #607386;
  --blue: #164c85;
  --blue-light: #2d79bd;
  --line: #dce6ee;
  --pale: #eff5fb;
  --warm: #f7f3eb;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: #fff; font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 2px solid var(--blue-light); outline-offset: 4px; }
.container { width: min(1200px, calc(100% - 72px)); margin: 0 auto; }
.trust { height: 34px; background: #e8f1fa; color: #4b6b88; font-size: 12px; letter-spacing: .04em; }
.trust .container { height: 100%; display: flex; align-items: center; }
.header { background: #fff; border-bottom: 1px solid #edf2f6; position: relative; z-index: 3; }
.header-inner { height: 82px; display: flex; align-items: center; gap: 36px; }
.brand { display: inline-flex; align-items: center; gap: 12px; min-width: max-content; font-weight: 760; font-size: 23px; line-height: 1; letter-spacing: .03em; }
.brand-symbol { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 12px; background: var(--blue); color: #fff; font-size: 23px; box-shadow: 0 8px 19px #164c8528; }
.brand small { display: block; margin-top: 7px; font-size: 9px; font-weight: 700; letter-spacing: .22em; color: #95a7b7; }
.header nav { margin-left: auto; display: flex; gap: 30px; }
.header nav a { color: #51677a; font-size: 14px; transition: color .2s; }
.header nav a:hover { color: var(--blue); }
.header-action { color: var(--blue); font-size: 13px; font-weight: 700; padding-bottom: 11px; border-bottom: 1px solid #aac5dd; white-space: nowrap; }
.header-action span, .btn span, .inline-link span { display: inline-block; margin-left: 7px; transition: transform .2s; }
.header-action:hover span, .btn:hover span, .inline-link:hover span { transform: translate(3px, -3px); }

.hero { overflow: hidden; position: relative; background: linear-gradient(130deg, #f7fbff 0%, #eaf4fd 53%, #dcecfb 100%); }
.hero::before { content: ""; position: absolute; width: 620px; height: 620px; top: -100px; right: -150px; border-radius: 50%; background: radial-gradient(circle, #cce5f9 0%, #d9eafb99 55%, transparent 72%); }
.hero-grid { min-height: 600px; display: grid; grid-template-columns: 1fr 1fr; gap: 45px; align-items: center; position: relative; }
.hero-copy { padding: 75px 0 80px; animation: rise .7s ease both; }
.eyebrow { display: flex; gap: 11px; align-items: center; color: #43749f; font-size: 12px; font-weight: 750; letter-spacing: .15em; }
.eyebrow span { width: 22px; height: 2px; background: #4691cb; }
.hero h1 { margin: 25px 0 20px; font-size: clamp(55px, 6vw, 88px); line-height: 1.1; letter-spacing: -.06em; }
.hero h1 em { display: inline-block; color: var(--blue); font-size: .61em; font-style: normal; letter-spacing: -.045em; white-space: nowrap; }
.hero-desc { max-width: 520px; margin: 0; color: #526b81; font-size: 16px; line-height: 1.9; }
.hero-actions { display: flex; align-items: center; gap: 34px; margin-top: 35px; }
.btn { min-height: 52px; padding: 0 25px; display: inline-flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 700; white-space: nowrap; box-shadow: 0 13px 24px #164c8519; transition: transform .2s, background .2s; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { color: #fff; background: var(--blue); }
.btn-primary:hover { background: #0f3e70; }
.inline-link { display: inline-block; border-bottom: 1px solid #9dbede; color: var(--blue); font-size: 14px; font-weight: 700; padding: 9px 0; }
.inline-link.dark { color: var(--ink); border-color: #9daebc; }
.hero-proof { margin-top: 54px; padding-top: 20px; border-top: 1px solid #cbddea; display: flex; align-items: center; gap: 23px; }
.hero-proof b { color: var(--blue); font-size: 30px; letter-spacing: -.04em; }
.hero-proof b small { font-size: 14px; letter-spacing: 0; }
.hero-proof span { border-left: 1px solid #bfd2e3; padding-left: 22px; color: #64809a; font-size: 12px; line-height: 1.7; }
.system-art { height: 500px; display: grid; place-items: center; position: relative; animation: rise .85s .12s ease both; }
.art-circle { position: absolute; border: 1px solid #a9c9e5; border-radius: 50%; }
.art-circle.a { width: 465px; height: 465px; transform: rotate(-17deg); }
.art-circle.b { width: 565px; height: 300px; transform: rotate(27deg); }
.art-panel { width: min(435px, 94%); padding: 27px 33px 22px; background: #fff; border: 1px solid #d8e6f2; border-radius: 24px; box-shadow: 0 30px 57px #2a639927; position: relative; z-index: 1; transform: rotate(-4deg); }
.art-header { display: flex; gap: 10px; align-items: center; color: #285b87; font-size: 12px; }
.art-header > span:last-child { color: #a4b8c9; letter-spacing: .2em; margin-left: auto; }
.art-icon { display: grid; place-items: center; width: 27px; height: 27px; border-radius: 8px; background: var(--blue); color: #fff; font-size: 15px; }
.art-panel h2 { margin: 25px 0 13px; font-size: 21px; letter-spacing: -.03em; }
.art-item { height: 78px; border-bottom: 1px solid #e7eef4; display: flex; align-items: center; gap: 15px; }
.art-item:last-child { border-bottom: 0; }
.art-item b { color: #75a2c8; font-size: 11px; }
.art-item span { display: grid; gap: 5px; }
.art-item strong { font-size: 15px; }
.art-item small { font-size: 12px; color: #8da2b2; }
.art-item i { width: 10px; height: 10px; border-radius: 50%; border: 2px solid #7db4e0; margin-left: auto; }
.art-item:nth-child(4) i { background: #7db4e0; }
.art-label { z-index: 2; position: absolute; color: #2e78b6; font-size: 12px; font-weight: 700; background: #fff; border: 1px solid #d6e6f3; box-shadow: 0 12px 26px #2860911e; border-radius: 100px; padding: 12px 19px; }
.art-label.one { top: 90px; left: 0; transform: rotate(-10deg); }
.art-label.two { bottom: 85px; right: 0; transform: rotate(8deg); }
.band { background: var(--blue); color: #fff; }
.band-inner { min-height: 94px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.band strong { font-size: 20px; }
.band span { display: flex; gap: 17px; align-items: center; color: #c8dff0; font-size: 13px; }
.band i { width: 3px; height: 3px; border-radius: 50%; background: #abcce9; }

.section { padding: 110px 0; }
.section-intro { max-width: 710px; }
.section-label { margin: 0 0 18px; color: #3985bf; font-size: 11px; font-weight: 750; letter-spacing: .19em; }
.section-intro h2, .delivery h2, .company h2, .sample-inner h2 { margin: 0; font-size: clamp(33px, 3.6vw, 48px); line-height: 1.32; letter-spacing: -.045em; }
.section-intro > p:last-child { margin: 19px 0 0; color: var(--muted); font-size: 15px; line-height: 1.9; }
.system-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; margin-top: 58px; border-top: 1px solid var(--line); padding-top: 45px; }
.pill { display: inline-block; padding: 7px 12px; border-radius: 100px; background: #eaf3fb; color: var(--blue); font-size: 11px; font-weight: 700; }
.detail-lead h3 { margin: 19px 0 14px; font-size: 29px; letter-spacing: -.04em; }
.detail-lead p { max-width: 485px; color: var(--muted); font-size: 14px; line-height: 1.9; }
.fact-list { border-top: 1px solid var(--line); }
.fact-list div { display: grid; grid-template-columns: 115px 1fr; align-items: center; min-height: 63px; border-bottom: 1px solid var(--line); gap: 10px; }
.fact-list span { color: #7690a4; font-size: 13px; }
.fact-list strong { font-size: 16px; }
.features { background: var(--warm); }
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); column-gap: 40px; row-gap: 45px; margin-top: 56px; }
.feature-list > div { border-top: 2px solid #c9d8e2; padding-top: 24px; }
.feature-list b { color: #69a1c9; font-size: 12px; }
.feature-list h3 { margin: 18px 0 11px; font-size: 21px; }
.feature-list p { color: #677587; font-size: 13px; line-height: 1.8; margin: 0; }
.delivery-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; }
.delivery-grid > div:first-child > p:not(.section-label) { max-width: 510px; margin: 23px 0; color: var(--muted); font-size: 15px; line-height: 1.9; }
.delivery-links { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }
.btn-dark { color: #fff; background: var(--ink); }
.btn-dark:hover { background: #0b1e31; }
.delivery-steps { border-top: 1px solid var(--line); }
.delivery-steps > div { display: flex; gap: 23px; align-items: center; min-height: 103px; border-bottom: 1px solid var(--line); }
.delivery-steps b { color: #68a0c7; font-size: 13px; }
.delivery-steps span { display: grid; gap: 7px; }
.delivery-steps strong { font-size: 18px; }
.delivery-steps small { font-size: 13px; color: var(--muted); }
.company { padding: 86px 0; background: #123a61; color: #fff; }
.company .section-label { color: #9bc6e7; }
.company-inner { display: flex; align-items: center; justify-content: space-between; gap: 48px; }
.company-inner p:not(.section-label) { color: #c7d8e7; font-size: 15px; line-height: 1.9; max-width: 770px; }
.company-inner p a { text-decoration: underline; text-underline-offset: 4px; }
.btn-light { color: var(--blue); background: #fff; box-shadow: none; }
.btn-light:hover { background: #eaf3fa; }
.footer { background: #0d2a47; color: #cfdeeb; padding: 55px 0 20px; }
.footer-grid { display: flex; justify-content: space-between; gap: 35px; }
.footer-brand { color: #fff; margin-bottom: 24px; }
.footer-brand .brand-symbol { background: #3276b1; }
.footer p { color: #a8bfd2; margin: 8px 0; font-size: 13px; }
.footer p a { text-decoration: underline; text-underline-offset: 3px; }
.footer nav { display: flex; gap: 27px; font-size: 13px; }
.footer nav a:hover { color: #fff; }
.copyright { border-top: 1px solid #31516e; color: #88a3b9; font-size: 12px; padding-top: 20px; margin-top: 42px; }

.product-hero { background: linear-gradient(125deg, #f8fbfe, #eaf4fd); padding: 31px 0 90px; }
.breadcrumb { margin: 0 0 54px; color: #7891a7; font-size: 12px; }
.breadcrumb a:hover { color: var(--blue); }
.product-hero-grid { display: grid; grid-template-columns: 1fr 405px; gap: 80px; align-items: center; }
.product-hero h1 { font-size: clamp(39px, 4.5vw, 65px); letter-spacing: -.055em; line-height: 1.2; margin: 20px 0; }
.product-subtitle { max-width: 660px; color: #526d83; font-size: 17px; line-height: 1.9; }
.product-specs { display: flex; gap: 45px; padding-top: 37px; margin-top: 43px; border-top: 1px solid #c8dce9; }
.product-specs div { display: grid; gap: 9px; }
.product-specs span { color: #7793aa; font-size: 12px; }
.product-specs strong { font-size: 16px; }
.price-panel { background: #fff; border: 1px solid #d8e7f2; padding: 36px; box-shadow: 0 24px 50px #1b5a9320; }
.price-panel > span { font-size: 13px; color: #6e8aa0; }
.price { padding: 14px 0 24px; margin-bottom: 21px; color: var(--blue); font-size: 48px; font-weight: 770; letter-spacing: -.06em; border-bottom: 1px solid var(--line); white-space: nowrap; }
.price small { font-size: 18px; letter-spacing: 0; }
.price small:last-child { color: #6b859b; font-size: 13px; }
.price-panel p { color: #567086; font-size: 13px; margin: 13px 0; }
.price-panel .btn { margin-top: 21px; width: 100%; }
.detail-columns { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; margin-top: 55px; }
.detail-columns > div { border-top: 2px solid #bdd6e8; padding-top: 22px; }
.detail-columns h3 { font-size: 23px; margin: 0 0 20px; }
.detail-columns ul { padding-left: 19px; color: var(--muted); font-size: 14px; line-height: 2.2; }
.sample-section { background: var(--warm); padding: 80px 0; }
.sample-inner { display: flex; justify-content: space-between; align-items: center; gap: 45px; }
.sample-inner p:last-child { color: var(--muted); max-width: 670px; font-size: 14px; line-height: 1.9; }
.company.compact { padding: 75px 0; }
@keyframes rise { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; } }
@media (max-width: 950px) {
  .container { width: min(740px, calc(100% - 42px)); }
  .header-inner { gap: 20px; height: 72px; }
  .header nav { gap: 16px; }
  .header nav a { font-size: 12px; }
  .header-action { display: none; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy { padding: 70px 0 0; }
  .system-art { height: 390px; }
  .art-panel { width: 420px; }
  .art-circle.a { width: 360px; height: 360px; }
  .art-circle.b { width: 500px; height: 250px; }
  .art-label.one { left: 5%; top: 65px; }
  .art-label.two { right: 5%; bottom: 48px; }
  .band-inner { padding: 23px 0; min-height: 0; }
  .band strong { font-size: 17px; }
  .band span { font-size: 11px; gap: 8px; }
  .section { padding: 83px 0; }
  .system-detail { gap: 35px; }
  .feature-list { grid-template-columns: repeat(2, 1fr); }
  .delivery-grid { gap: 42px; }
  .product-hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .price-panel { max-width: 450px; }
}
@media (max-width: 620px) {
  .container { width: calc(100% - 36px); }
  .trust { height: 30px; font-size: 10px; }
  .header-inner { height: 64px; }
  .brand { gap: 7px; font-size: 17px; }
  .brand-symbol { width: 32px; height: 32px; border-radius: 9px; font-size: 18px; }
  .brand small { margin-top: 5px; font-size: 7px; }
  .header nav { gap: 12px; }
  .header nav a { font-size: 11px; white-space: nowrap; }
  .header nav a:nth-child(n+3) { display: none; }
  .hero-copy { padding-top: 58px; }
  .eyebrow { font-size: 10px; }
  .hero h1 { font-size: 55px; margin: 20px 0; }
  .hero h1 em { font-size: 31px; }
  .hero-desc { font-size: 14px; }
  .hero-actions { gap: 18px; margin-top: 25px; flex-wrap: wrap; }
  .btn { min-height: 46px; padding: 0 18px; font-size: 12px; }
  .inline-link { font-size: 12px; }
  .hero-proof { margin-top: 35px; }
  .hero-proof b { font-size: 25px; }
  .system-art { height: 340px; }
  .art-panel { width: 275px; padding: 20px 22px 16px; border-radius: 18px; }
  .art-panel h2 { font-size: 15px; margin: 20px 0 8px; }
  .art-header { font-size: 10px; }
  .art-icon { width: 23px; height: 23px; }
  .art-item { height: 61px; gap: 10px; }
  .art-item strong { font-size: 12px; }
  .art-item small { font-size: 9px; }
  .art-item b { font-size: 9px; }
  .art-circle.a { width: 290px; height: 290px; }
  .art-circle.b { width: 350px; height: 170px; }
  .art-label { font-size: 10px; padding: 8px 12px; }
  .art-label.one { left: 0; top: 45px; }
  .art-label.two { right: 0; bottom: 32px; }
  .band-inner { display: block; }
  .band strong { font-size: 16px; }
  .band span { margin-top: 13px; flex-wrap: wrap; }
  .section { padding: 68px 0; }
  .section-intro h2, .delivery h2, .company h2, .sample-inner h2 { font-size: 31px; }
  .section-intro > p:last-child { font-size: 13px; }
  .system-detail { grid-template-columns: 1fr; margin-top: 35px; padding-top: 25px; }
  .detail-lead h3 { font-size: 24px; }
  .fact-list div { grid-template-columns: 95px 1fr; }
  .fact-list strong { font-size: 14px; }
  .feature-list { grid-template-columns: 1fr; gap: 26px; margin-top: 37px; }
  .feature-list > div { padding-top: 16px; }
  .feature-list h3 { font-size: 18px; margin: 10px 0 7px; }
  .delivery-grid { grid-template-columns: 1fr; gap: 40px; }
  .delivery-grid > div:first-child > p:not(.section-label) { font-size: 13px; }
  .delivery-steps > div { min-height: 87px; }
  .delivery-steps strong { font-size: 16px; }
  .delivery-steps small { font-size: 12px; }
  .company { padding: 65px 0; }
  .company-inner, .sample-inner { flex-direction: column; align-items: flex-start; gap: 25px; }
  .company-inner p:not(.section-label) { font-size: 13px; }
  .footer { padding-top: 40px; }
  .footer-grid { display: block; }
  .footer nav { margin-top: 28px; gap: 20px; flex-wrap: wrap; font-size: 12px; }
  .copyright { margin-top: 30px; }
  .product-hero { padding: 24px 0 65px; }
  .breadcrumb { margin-bottom: 39px; }
  .product-hero h1 { font-size: 39px; }
  .product-subtitle { font-size: 14px; }
  .product-specs { gap: 18px; flex-wrap: wrap; margin-top: 28px; padding-top: 24px; }
  .product-specs strong { font-size: 13px; }
  .price-panel { padding: 26px; }
  .price { font-size: 42px; }
  .detail-columns { grid-template-columns: 1fr; gap: 23px; margin-top: 36px; }
  .detail-columns h3 { font-size: 20px; }
  .detail-columns ul { font-size: 13px; }
  .sample-section { padding: 65px 0; }
}