:root {
  --ink: #12201c;
  --muted: #5d6a65;
  --paper: #f7f9f7;
  --white: #ffffff;
  --green: #126b58;
  --green-dark: #0d3b32;
  --mint: #dceee8;
  --gold: #d79b25;
  --gold-soft: #f4e8c9;
  --coral: #c8584a;
  --line: #d7dfdb;
  --header-height: 68px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif; line-height: 1.65; }
body, button, a { letter-spacing: 0; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; }
.site-header { position: absolute; z-index: 20; top: 0; left: 0; width: 100%; height: var(--header-height); display: flex; align-items: center; justify-content: space-between; padding: 0 clamp(20px, 4vw, 64px); color: var(--white); border-bottom: 1px solid rgba(255,255,255,.24); }
.site-header.solid { position: relative; color: var(--ink); background: var(--white); border-color: var(--line); }
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 800; font-size: 20px; }
.brand img { width: 36px; height: 36px; border-radius: 7px; }
.desktop-nav { display: flex; align-items: center; gap: clamp(22px, 3vw, 42px); font-size: 15px; font-weight: 700; }
.desktop-nav a, .back-link { transition: color .2s ease; }
.desktop-nav a:hover, .back-link:hover { color: #f3c45d; }
.menu-button { display: none; width: 40px; height: 40px; align-items: center; justify-content: center; padding: 0; color: inherit; background: transparent; border: 1px solid currentColor; border-radius: 7px; }
.menu-button svg { width: 21px; height: 21px; }
.mobile-nav { position: fixed; z-index: 19; top: var(--header-height); left: 0; right: 0; padding: 16px 22px 22px; background: var(--green-dark); color: var(--white); border-bottom: 1px solid rgba(255,255,255,.2); }
.mobile-nav a { display: block; padding: 13px 0; border-bottom: 1px solid rgba(255,255,255,.12); font-weight: 700; }
.hero { position: relative; min-height: min(780px, calc(100vh - 44px)); display: flex; align-items: center; overflow: hidden; color: var(--white); background: #18352d; }
.hero-media { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 42% center; }
.hero-shade { position: absolute; inset: 0; background: rgba(5, 28, 23, .77); }
.hero-content { position: relative; z-index: 2; width: min(760px, calc(100% - 40px)); margin-left: clamp(20px, 8vw, 130px); padding-top: var(--header-height); }
.eyebrow, .section-kicker { margin: 0 0 12px; color: #f0c45a; font-weight: 800; font-size: 14px; }
.hero h1 { margin: 0; font-size: clamp(58px, 8vw, 112px); line-height: 1; font-weight: 900; }
.hero-lead { max-width: 690px; margin: 28px 0 0; font-size: clamp(20px, 2.3vw, 31px); line-height: 1.5; font-weight: 650; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; gap: 9px; padding: 0 20px; border: 1px solid transparent; border-radius: 7px; font-weight: 800; transition: transform .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button svg { width: 18px; height: 18px; }
.button.primary { color: #10231d; background: #f2c456; }
.button.secondary { color: var(--white); background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.65); }
.hero-status { position: absolute; z-index: 2; right: clamp(20px, 5vw, 72px); bottom: 30px; display: flex; align-items: center; gap: 9px; padding: 10px 14px; background: rgba(8,40,33,.82); border: 1px solid rgba(255,255,255,.25); border-radius: 7px; font-size: 13px; }
.status-dot { width: 9px; height: 9px; border-radius: 50%; background: #55d49e; box-shadow: 0 0 0 4px rgba(85,212,158,.15); }
.section { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.intro { padding: 94px 0 110px; }
.section-heading { max-width: 760px; margin-bottom: 66px; }
.section-heading h2, .company h2, .contact-band h2 { margin: 0; font-size: clamp(34px, 4vw, 55px); line-height: 1.18; }
.section-heading > p:last-child { margin: 22px 0 0; color: var(--muted); font-size: 18px; }
.product-row { display: grid; grid-template-columns: minmax(300px, .85fr) minmax(480px, 1.35fr); gap: clamp(38px, 6vw, 86px); align-items: center; padding: 52px 0 84px; border-top: 1px solid var(--line); }
.product-row.reverse { grid-template-columns: minmax(480px, 1.25fr) minmax(300px, .8fr); }
.product-row.reverse .product-copy { order: 2; }
.product-index { display: inline-flex; width: 42px; height: 42px; align-items: center; justify-content: center; color: var(--green); background: var(--mint); border-radius: 7px; font-weight: 900; }
.product-index.coral { color: var(--coral); background: #f4dedb; }
.product-index.blue { color: #245f91; background: #dceaf5; }
.product-label { margin: 18px 0 0 !important; color: var(--green) !important; font-size: 13px !important; font-weight: 900; }
.coral-label { color: var(--coral) !important; }
.blue-label { color: #245f91 !important; }
.product-copy h3 { margin: 7px 0 15px; font-size: clamp(29px, 3vw, 43px); line-height: 1.2; }
.product-copy > p { margin: 0; color: var(--muted); font-size: 17px; }
.feature-list { display: grid; gap: 12px; margin: 28px 0; padding: 0; list-style: none; }
.feature-list li { display: flex; align-items: center; gap: 12px; font-weight: 700; }
.feature-list svg { width: 20px; height: 20px; color: var(--green); flex: 0 0 auto; }
.availability { display: inline-flex; padding: 6px 10px; color: var(--green-dark); background: var(--gold-soft); border-radius: 5px; font-size: 13px; font-weight: 800; }
.coral-text { color: #782c26; background: #f4dedb; }
.blue-text { color: #174b74; background: #dceaf5; }
.product-media { margin: 0; overflow: hidden; background: var(--white); border: 1px solid var(--line); border-radius: 8px; box-shadow: 0 18px 45px rgba(17,48,39,.12); }
.product-media img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; object-position: left top; }
.product-media figcaption { padding: 13px 16px; color: var(--muted); font-size: 13px; border-top: 1px solid var(--line); }
.planner-visual { min-height: 430px; color: var(--white); background: #182e3a; border-radius: 8px; overflow: hidden; box-shadow: 0 18px 45px rgba(17,48,39,.14); }
.planner-toolbar { height: 64px; display: flex; align-items: center; justify-content: space-between; padding: 0 24px; background: #0d212b; font-weight: 800; }
.planner-toolbar svg { color: #f0bd45; }
.planner-body { display: grid; gap: 1px; padding: 24px; }
.planner-step { min-height: 75px; display: grid; grid-template-columns: 42px 1fr; grid-template-rows: auto auto; column-gap: 14px; align-items: center; padding: 12px 16px; border-bottom: 1px solid rgba(255,255,255,.12); }
.planner-step span { grid-row: 1 / 3; display: flex; width: 36px; height: 36px; align-items: center; justify-content: center; color: #17252c; background: #dce8e5; border-radius: 50%; font-weight: 900; }
.planner-step strong { font-size: 16px; }
.planner-step small { color: #9eb1b7; }
.planner-step.active { background: #224d55; border-radius: 6px; border-bottom-color: transparent; }
.planner-step.active span { background: #f0bd45; }
.capability-band { color: var(--white); background: var(--green-dark); }
.capability-inner { padding: 94px 0 100px; }
.section-heading.light { margin-bottom: 48px; }
.section-heading.light h2 { max-width: 900px; }
.capability-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid rgba(255,255,255,.22); border-bottom: 1px solid rgba(255,255,255,.22); }
.capability-grid > div { min-height: 255px; padding: 34px 26px; border-right: 1px solid rgba(255,255,255,.22); }
.capability-grid > div:last-child { border-right: 0; }
.capability-grid svg { width: 29px; height: 29px; color: #f0c45a; }
.capability-grid h3 { margin: 28px 0 10px; font-size: 20px; }
.capability-grid p { margin: 0; color: #c7d4d0; }
.company { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(40px, 8vw, 120px); padding: 110px 0; }
.company-copy { color: var(--muted); font-size: 19px; }
.company-copy p { margin: 0 0 24px; }
.contact-band { color: var(--ink); background: #f1c55e; }
.contact-inner { width: min(1180px, calc(100% - 40px)); min-height: 330px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.contact-inner .section-kicker { color: #714d00; }
.contact-inner h2 { max-width: 800px; }
.contact-inner p:last-child { margin: 18px 0 0; }
.contact-qr { flex: 0 0 120px; width: 120px; display: flex; flex-direction: column; align-items: center; gap: 7px; padding: 8px; color: var(--white); background: var(--green-dark); border-radius: 7px; font-size: 12px; font-weight: 800; text-align: center; }
.contact-qr img { display: block; width: 96px !important; height: 96px !important; max-width: 96px !important; object-fit: cover; background: var(--white); }
footer { color: #c7d4d0; background: #0a221c; }
.footer-main { width: min(1180px, calc(100% - 40px)); min-height: 160px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr auto; align-items: center; gap: 28px; }
.footer-brand { color: var(--white); }
.footer-main p { margin: 0; }
.footer-links { display: flex; gap: 22px; }
.footer-links a:hover { color: #f0c45a; }
.footer-legal { min-height: 56px; display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 20px 34px; padding: 12px 20px; border-top: 1px solid rgba(255,255,255,.12); font-size: 13px; }
.policy-page { background: var(--white); }
.back-link { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; }
.back-link svg { width: 18px; }
.policy-main { width: min(820px, calc(100% - 40px)); min-height: 70vh; margin: 0 auto; padding: 80px 0 100px; }
.policy-main h1 { margin: 0; font-size: clamp(38px, 5vw, 62px); line-height: 1.2; }
.policy-date { color: var(--muted); }
.policy-main section { padding: 28px 0; border-top: 1px solid var(--line); }
.policy-main section:first-of-type { margin-top: 52px; }
.policy-main h2 { margin: 0 0 10px; font-size: 22px; }
.policy-main section p { margin: 0; color: var(--muted); }

@media (max-width: 920px) {
  .desktop-nav { display: none; }
  .menu-button { display: inline-flex; }
  .product-row, .product-row.reverse { grid-template-columns: 1fr; }
  .product-row.reverse .product-copy { order: 0; }
  .capability-grid { grid-template-columns: 1fr 1fr; }
  .capability-grid > div:nth-child(2) { border-right: 0; }
  .capability-grid > div:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,.22); }
  .company { grid-template-columns: 1fr; }
  .contact-inner { align-items: flex-start; flex-direction: column; justify-content: center; }
  .footer-main { grid-template-columns: 1fr; padding: 38px 0; }
}

@media (max-width: 620px) {
  :root { --header-height: 62px; }
  .site-header { padding: 0 18px; }
  .brand { font-size: 18px; }
  .brand img { width: 33px; height: 33px; }
  .hero { min-height: 730px; align-items: flex-start; }
  .hero-content { width: calc(100% - 36px); margin: 0 18px; padding-top: 158px; }
  .hero h1 { font-size: 62px; }
  .hero-lead { font-size: 20px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .button { width: 100%; }
  .hero-status { left: 18px; right: 18px; bottom: 18px; }
  .section, .contact-inner, .footer-main { width: calc(100% - 36px); }
  .intro, .capability-inner { padding: 72px 0; }
  .section-heading { margin-bottom: 45px; }
  .product-row { gap: 32px; padding: 42px 0 64px; }
  .planner-visual { min-height: 390px; }
  .planner-body { padding: 15px; }
  .capability-grid { grid-template-columns: 1fr; }
  .capability-grid > div { min-height: 205px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.22); }
  .capability-grid > div:last-child { border-bottom: 0; }
  .company { padding: 76px 0; }
  .contact-inner { min-height: 390px; }
  .contact-qr { width: 120px; flex-basis: 120px; align-self: center; }
  .footer-links { flex-wrap: wrap; }
}