:root {
  --navy: #173653;
  --navy-deep: #10283f;
  --blue-soft: #f2f6fa;
  --ink: #1d3145;
  --muted: #647588;
  --line: #d7e1ea;
  --orange: #e5a034;
  --orange-deep: #c98318;
  --white: #fff;
  --shadow: 0 18px 45px rgba(21, 52, 78, .1);
  --container: 1160px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: #fff; font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif; line-height: 1.7; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.container { width: min(calc(100% - 40px), var(--container)); margin: 0 auto; }
.skip-link { position: absolute; left: -9999px; }
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); backdrop-filter: blur(12px); }
.header-inner { min-height: 76px; display: flex; align-items: center; gap: 34px; }
.brand { display: inline-flex; align-items: center; gap: 15px; margin-right: auto; }
.brand-logo { width: 82px; height: 48px; object-fit: contain; }
.brand-name { font-size: 17px; font-weight: 800; color: var(--navy); }
.main-nav { display: flex; gap: 30px; color: #52677a; font-size: 14px; }
.main-nav a:hover { color: var(--navy); }
.header-phone { color: var(--navy); font-size: 13px; font-weight: 700; white-space: nowrap; }
.header-phone b { display: block; color: var(--orange-deep); font-size: 16px; letter-spacing: .04em; }
.header-cta, .btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; border-radius: 7px; font-weight: 800; transition: transform .2s, box-shadow .2s, background .2s; }
.header-cta { padding: 11px 20px; color: #fff; background: var(--orange); white-space: nowrap; }
.header-cta:hover, .btn:hover { transform: translateY(-2px); box-shadow: 0 10px 22px rgba(201,131,24,.22); }
.hero { background: var(--blue-soft); border-bottom: 1px solid var(--line); }
.hero-inner { min-height: 560px; display: grid; grid-template-columns: 1.03fr .97fr; gap: 50px; align-items: center; padding: 66px 0 46px; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--orange-deep); font-size: 13px; font-weight: 800; letter-spacing: .08em; }
.eyebrow::before { content: ""; width: 28px; height: 2px; background: var(--orange); }
h1 { margin: 18px 0 12px; color: var(--navy-deep); font-size: clamp(36px, 4.2vw, 60px); line-height: 1.16; letter-spacing: -.04em; white-space: nowrap; }
.hero-series { display: flex; align-items: baseline; gap: 12px; margin: 0 0 22px; color: var(--navy); }
.hero-series span { font-size: 16px; font-weight: 700; }
.hero-series strong { font-size: 30px; }
.hero-lead { max-width: 650px; margin: 0; color: var(--muted); font-size: 17px; line-height: 1.9; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.btn { min-height: 48px; padding: 0 24px; }
.btn-primary { color: #fff; background: var(--orange); }
.btn-secondary { color: var(--navy); background: #fff; border: 1px solid #b9cad8; }
.hero-points { display: flex; gap: 24px; margin: 30px 0 0; padding: 0; list-style: none; color: #506678; font-size: 13px; }
.hero-points li { display: flex; align-items: center; gap: 7px; }
.hero-points span { color: var(--orange-deep); font-weight: 900; }
.hero-visual { position: relative; display: flex; justify-content: center; align-items: center; min-height: 480px; }
.product-frame { position: relative; width: min(100%, 410px); height: 480px; display: grid; place-items: center; background: #fff; border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); overflow: hidden; }
.product-frame::before { content: "KDX8000 SERIES"; position: absolute; top: 22px; left: 24px; color: #93a6b6; font-size: 11px; letter-spacing: .18em; }
.product-image { width: 82%; height: 88%; object-fit: contain; }
.badge { position: absolute; padding: 13px 16px; background: #fff; border: 1px solid var(--line); border-radius: 8px; box-shadow: 0 12px 25px rgba(22,48,71,.1); }
.badge b { display: block; color: var(--orange-deep); font-size: 20px; line-height: 1.1; }
.badge span { color: var(--muted); font-size: 12px; }
.badge-a { left: -20px; top: 92px; }.badge-b { right: -18px; bottom: 70px; }
.trust-bar { display: grid; grid-template-columns: repeat(4, 1fr); background: #fff; border: 1px solid var(--line); border-bottom: 0; border-radius: 12px 12px 0 0; overflow: hidden; }
.trust-bar > div { min-height: 92px; padding: 20px 24px; border-right: 1px solid var(--line); }
.trust-bar > div:last-child { border-right: 0; }
.trust-bar span { display: block; color: #8191a0; font-size: 12px; }
.trust-bar strong { display: block; margin-top: 5px; color: var(--navy); font-size: 14px; }
.trust-phone { display: flex; align-items: center; gap: 10px; height: 100%; }
.trust-phone-icon { width: 32px; height: 32px; display: grid; place-items: center; color: #fff; background: var(--orange); border-radius: 50%; font-size: 18px; }
.section { padding: 86px 0; }
.section-heading { max-width: 780px; margin: 0 auto 38px; text-align: center; }
.section-heading h2 { margin: 12px 0 12px; color: var(--navy-deep); font-size: clamp(28px, 3vw, 40px); line-height: 1.25; }
.section-heading p { margin: 0; color: var(--muted); }
.product-section { background: #fff; }
.detail-layout { display: grid; grid-template-columns: .82fr 1.18fr; gap: 58px; align-items: center; }
.detail-image { width: 100%; max-height: 530px; object-fit: contain; }
.detail-copy h3 { margin: 0 0 16px; color: var(--navy); font-size: 25px; }
.detail-copy p { color: var(--muted); }
.detail-list { display: grid; gap: 12px; margin: 25px 0 0; padding: 0; list-style: none; }
.detail-list li { display: flex; gap: 12px; padding: 14px 16px; background: var(--blue-soft); border-left: 3px solid var(--orange); }
.detail-list b { color: var(--navy); }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 36px; }
.feature-card { min-height: 190px; padding: 25px; border: 1px solid var(--line); border-radius: 10px; background: #fff; }
.feature-index { color: var(--orange-deep); font-size: 13px; font-weight: 900; }
.feature-card h3 { margin: 16px 0 8px; color: var(--navy); font-size: 20px; }
.feature-card p { margin: 0; color: var(--muted); font-size: 14px; }
.solutions { background: var(--navy); color: #fff; }
.solutions .section-heading h2, .solutions .section-heading p { color: #fff; }
.solution-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.solution-card { padding: 30px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.2); border-radius: 12px; }
.solution-card.light { background: #fff; color: var(--ink); border-color: #fff; }
.solution-card h3 { margin: 10px 0; font-size: 24px; }
.solution-card p { margin: 0 0 18px; color: rgba(255,255,255,.72); }
.solution-card.light p { color: var(--muted); }
.solution-card ul { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 24px; padding: 0; list-style: none; }
.solution-card li { padding: 5px 10px; color: #f3c979; border: 1px solid rgba(243,201,121,.42); border-radius: 5px; font-size: 12px; }
.solution-card.light li { color: var(--navy); border-color: var(--line); }
.text-link { color: #f3c979; font-weight: 800; }.solution-card.light .text-link { color: var(--orange-deep); }
.contact-section { background: #f7f9fb; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; align-items: stretch; }
.contact-panel, .lead-form { padding: 34px; background: #fff; border: 1px solid var(--line); border-radius: 12px; box-shadow: 0 10px 30px rgba(25,54,83,.05); }
.contact-panel h3, .form-heading h3 { margin: 8px 0; color: var(--navy); font-size: 26px; }
.contact-panel p, .form-heading p { color: var(--muted); }
.qr-row { display: flex; align-items: center; gap: 22px; margin-top: 24px; padding-top: 24px; border-top: 1px solid var(--line); }
.qr-row img { width: 148px; height: 148px; padding: 8px; border: 1px solid var(--line); border-radius: 8px; }
.qr-copy strong { display: block; color: var(--navy); font-size: 20px; }.qr-copy span { color: var(--muted); font-size: 13px; }.sales-phone { display: block; margin-top: 12px; color: var(--orange-deep); font-size: 21px; font-weight: 900; letter-spacing: .04em; }
.form-heading > span, .contact-panel > span { color: var(--orange-deep); font-size: 11px; font-weight: 900; letter-spacing: .2em; }
.field { display: block; margin: 16px 0; }.field > span { display: block; margin-bottom: 6px; color: var(--navy); font-size: 13px; font-weight: 700; }.field input { width: 100%; height: 48px; padding: 0 14px; border: 1px solid var(--line); border-radius: 6px; outline: 0; background: #fbfcfd; }.field input:focus { border-color: var(--orange); box-shadow: 0 0 0 3px rgba(229,160,52,.15); }.required { color: #c85b43; }
.form-tip { color: var(--muted); font-size: 12px; }.form-submit { width: 100%; border: 0; cursor: pointer; }
.footer { padding: 38px 0 24px; color: rgba(255,255,255,.72); background: #101b28; }.footer-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 50px; }.footer .brand-name, .footer h3 { color: #fff; }.footer p { font-size: 12px; }.footer dl { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 25px; margin: 0; }.footer dt { color: rgba(255,255,255,.42); font-size: 11px; }.footer dd { margin: 2px 0 0; color: #fff; font-size: 12px; }.footer-note { margin-top: 20px; padding-top: 16px; border-top: 1px solid rgba(255,255,255,.12); font-size: 11px; line-height: 1.7; }.copyright { margin: 26px 0 0; padding-top: 16px; border-top: 1px solid rgba(255,255,255,.12); font-size: 11px; text-align: center; }
.mobile-bar { display: none; }
@media (max-width: 900px) { .main-nav, .header-phone { display: none; }.hero-inner, .detail-layout, .contact-grid { grid-template-columns: 1fr; }.hero-inner { padding-top: 45px; }.hero-copy { order: 1; }.hero-visual { order: 0; min-height: 410px; }.product-frame { height: 400px; }.badge-a { left: 0; }.badge-b { right: 0; }.feature-grid { grid-template-columns: 1fr; }.solution-grid, .footer-grid { grid-template-columns: 1fr; }.detail-layout { gap: 30px; }.detail-image { max-height: 400px; } }
@media (max-width: 620px) { .container { width: min(calc(100% - 28px), var(--container)); }.header-inner { min-height: 64px; }.brand-logo { width: 68px; }.brand-name { font-size: 14px; }.header-cta { padding: 9px 13px; font-size: 12px; } h1 { font-size: 34px; white-space: normal; }.hero-series strong { font-size: 24px; }.hero-lead { font-size: 15px; }.hero-actions { flex-direction: column; }.btn { width: 100%; }.hero-points { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; font-size: 12px; }.trust-bar { grid-template-columns: 1fr 1fr; }.trust-bar > div { min-height: 84px; padding: 15px; border-bottom: 1px solid var(--line); }.trust-bar > div:nth-child(2) { border-right: 0; }.trust-phone { grid-column: 1 / -1; }.section { padding: 62px 0; }.contact-panel, .lead-form { padding: 24px 20px; }.qr-row { align-items: flex-start; gap: 14px; }.qr-row img { width: 120px; height: 120px; }.sales-phone { font-size: 18px; }.footer dl { grid-template-columns: 1fr; }.mobile-bar { position: fixed; z-index: 30; right: 0; bottom: 0; left: 0; display: grid; grid-template-columns: 1fr 1fr; height: 54px; background: #fff; box-shadow: 0 -8px 22px rgba(16,45,70,.14); }.mobile-bar a { display: grid; place-items: center; color: var(--navy); font-weight: 800; }.mobile-bar a:last-child { color: #fff; background: var(--orange); } body { padding-bottom: 54px; } }

/* 清爽主图与分卡信息布局 */
.hero-visual { min-height: 500px; }
.product-frame { width: min(100%, 460px); height: 500px; background: transparent; border: 0; border-radius: 0; box-shadow: none; overflow: visible; }
.product-frame::before { display: none; }
.product-image { width: 96%; height: 100%; object-fit: contain; }
.badge { display: none; }
.trust-bar { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; background: transparent; border: 0; border-radius: 0; overflow: visible; }
.trust-bar > div, .trust-bar > div:last-child { min-height: 92px; padding: 18px 20px; background: #fff; border: 1px solid var(--line); border-radius: 10px; box-shadow: 0 8px 22px rgba(22, 48, 71, .06); }
@media (max-width: 900px) { .hero-visual { min-height: 420px; }.product-frame { height: 420px; } }
@media (max-width: 620px) { .trust-bar { grid-template-columns: 1fr 1fr; gap: 10px; }.trust-bar > div, .trust-bar > div:last-child { min-height: 84px; padding: 15px; }.trust-phone { grid-column: 1 / -1; } }

/* 二次整理：减少视觉噪音，突出采购信息 */
.trust-bar { position: relative; z-index: 3; gap: 0; margin-top: -2px; padding: 0; background: rgba(255,255,255,.92); border: 1px solid rgba(190,207,220,.85); border-radius: 10px; box-shadow: 0 12px 28px rgba(26,55,82,.08); }
.hero-inner { min-height: 620px; }
.trust-bar > div, .trust-bar > div:last-child { min-height: 76px; padding: 15px 22px; background: transparent; border: 0; border-right: 1px solid rgba(190,207,220,.65); border-radius: 0; box-shadow: none; }
.trust-bar > div:last-child { border-right: 0; }
.trust-bar span { font-size: 11px; }
.trust-bar strong { font-size: 14px; }
.trust-phone-icon { width: 28px; height: 28px; font-size: 15px; }
.detail-copy h3 { display: inline-block; margin-bottom: 18px; padding-bottom: 8px; border-bottom: 3px solid var(--orange); }
.detail-list { gap: 0; margin-top: 22px; border-top: 1px solid var(--line); }
.detail-list li { justify-content: flex-start; gap: 20px; padding: 15px 0; background: transparent; border-left: 0; border-bottom: 1px solid var(--line); }
.detail-list b { min-width: 64px; color: var(--orange-deep); }
.feature-card { border-radius: 8px; box-shadow: 0 8px 20px rgba(25,54,83,.04); }
.solution-card .btn { margin-top: 2px; text-decoration: none; }
.solution-card .btn-primary { color: #fff; background: var(--orange); }
.solution-card .btn-secondary { background: #fff; }
.footer-note { grid-column: 1 / -1; margin-top: 8px; padding-top: 12px; font-size: 11px; }
.text-link.btn { display: inline-flex; }
@media (max-width: 900px) { .hero-inner { min-height: 560px; } }
@media (max-width: 620px) { .hero-inner { min-height: 0; }.trust-bar { margin-top: 0; }.trust-bar > div, .trust-bar > div:last-child { min-height: 72px; padding: 13px 14px; border-right: 1px solid rgba(190,207,220,.65); border-bottom: 1px solid rgba(190,207,220,.65); }.trust-bar > div:nth-child(2) { border-right: 0; }.trust-bar > div:last-child { border-right: 0; border-bottom: 0; }.detail-list li { gap: 12px; } }
@media (min-width: 901px) and (max-width: 1100px) {
  .hero-inner { grid-template-columns: 1fr .9fr; gap: 22px; min-height: 560px; padding-top: 48px; }
  .hero-visual { min-height: 430px; }
  .product-frame { height: 430px; }
  .product-image { width: 100%; height: 100%; }
  .hero-lead { font-size: 15px; }
  .trust-bar > div, .trust-bar > div:last-child { padding-left: 16px; padding-right: 16px; }
}
@media (max-width: 900px) {
  .hero-inner { display: flex; flex-direction: column; align-items: stretch; min-height: 0; }
  .hero-copy { order: 0; }
  .hero-visual { order: 1; min-height: 300px; margin-top: 18px; }
  .product-frame { height: 300px; }
  .product-image { width: 88%; height: 100%; }
}
@media (max-width: 620px) {
  .hero-inner { padding-top: 34px; padding-bottom: 28px; }
  .hero-visual { min-height: 250px; margin-top: 12px; }
  .product-frame { height: 250px; }
  .product-image { width: 92%; }
}
.footer > .copyright { display: block; width: min(calc(100% - 40px), var(--container)); margin: 26px auto 0; box-sizing: border-box; text-align: center; }