:root {
    --ink: #17211c;
    --forest: #174d36;
    --forest-dark: #0b3424;
    --leaf: #73a942;
    --orange: #f07928;
    --orange-dark: #c94f13;
    --paper: #f7f8f4;
    --white: #ffffff;
    --line: #dce2da;
    --muted: #68736d;
    --danger: #a53024;
    --shadow: 0 20px 55px rgba(13, 42, 29, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif; line-height: 1.65; letter-spacing: 0; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; letter-spacing: 0; }
button, a { -webkit-tap-highlight-color: transparent; }
img { max-width: 100%; display: block; }

.site-header { position: absolute; inset: 0 0 auto; z-index: 20; height: 88px; padding: 0 5vw; display: flex; align-items: center; justify-content: space-between; color: #fff; border-bottom: 1px solid rgba(255,255,255,.22); }
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-mark { width: 43px; height: 43px; display: grid; place-items: center; border: 1px solid currentColor; font: 700 18px/1 Georgia, serif; }
.brand > span:last-child { display: flex; flex-direction: column; line-height: 1.2; }
.brand strong { font-size: 16px; }
.brand small { margin-top: 4px; font-size: 10px; opacity: .7; }
.site-header nav { display: flex; gap: 32px; align-items: center; font-size: 14px; }
.site-header nav a { opacity: .84; }
.site-header nav a:hover { opacity: 1; }
.site-header .nav-cta { padding: 11px 18px; color: var(--forest-dark); background: #fff; opacity: 1; }
.light-header { position: relative; color: var(--ink); background: #fff; border-bottom-color: var(--line); }
.light-header .nav-cta { color: #fff; background: var(--forest); }

.hero { min-height: 780px; position: relative; overflow: hidden; color: #fff; background: var(--forest-dark); }
.hero-image { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-shade { position: absolute; inset: 0; background: rgba(6, 24, 16, .52); }
.hero-content { position: relative; z-index: 2; width: min(760px, 88vw); padding: 190px 0 170px 8vw; }
.eyebrow, .section-kicker { display: block; font-size: 12px; font-weight: 800; letter-spacing: 0; text-transform: uppercase; }
.hero .eyebrow { color: #cfe7b4; }
.hero h1 { max-width: 700px; margin: 24px 0; font-family: Georgia, "Songti SC", serif; font-size: 68px; font-weight: 500; line-height: 1.17; letter-spacing: 0; }
.hero-content > p { max-width: 620px; margin: 0; color: rgba(255,255,255,.84); font-size: 18px; }
.hero-actions { display: flex; gap: 12px; margin-top: 38px; }
.button { min-height: 48px; padding: 12px 22px; border: 1px solid transparent; border-radius: 4px; display: inline-flex; align-items: center; justify-content: center; color: var(--ink); background: #fff; cursor: pointer; font-weight: 800; transition: transform .2s ease, background .2s ease, border-color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button.primary { color: #fff; background: var(--orange); }
.button.primary:hover { background: var(--orange-dark); }
.button.glass { color: #fff; background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.48); }
.button.outline { color: var(--forest); background: transparent; border-color: #aebbb3; }
.button.outline:hover { color: #fff; background: var(--forest); border-color: var(--forest); }
.button.dark { color: #fff; background: var(--ink); }
.button.wide { width: 100%; }
.harvest-strip { position: absolute; z-index: 3; inset: auto 0 0; min-height: 88px; padding: 0 8vw; display: grid; grid-template-columns: repeat(3, 1fr); align-items: center; background: rgba(9, 38, 26, .9); border-top: 1px solid rgba(255,255,255,.2); }
.harvest-strip span { display: flex; align-items: center; gap: 14px; color: rgba(255,255,255,.78); font-size: 14px; }
.harvest-strip b { color: #d7eead; font: 400 20px/1 Georgia, serif; }

.origin-band { padding: 110px 8vw; display: grid; grid-template-columns: .8fr 1.3fr; gap: 60px 10vw; background: #eef3ec; }
.section-heading h2 { margin: 14px 0 0; font-family: Georgia, "Songti SC", serif; font-size: 44px; font-weight: 500; line-height: 1.3; letter-spacing: 0; }
.section-kicker { color: var(--orange-dark); }
.origin-copy { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; color: #4d5a53; font-size: 16px; }
.origin-copy p { margin: 0; }
.origin-metrics { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid #bdcabc; }
.origin-metrics div { padding: 34px 0; display: flex; align-items: baseline; gap: 14px; border-right: 1px solid #bdcabc; }
.origin-metrics div:last-child { border-right: 0; padding-left: 34px; }
.origin-metrics div:nth-child(2) { padding-left: 34px; }
.origin-metrics strong { color: var(--forest); font: 500 42px/1 Georgia, serif; }
.origin-metrics span { color: var(--muted); font-size: 13px; }

.product-section { padding: 110px 6vw 120px; }
.section-heading.centered { max-width: 760px; margin: 0 auto 58px; text-align: center; }
.section-heading.centered p { color: var(--muted); }
.product-grid { width: min(1180px, 100%); margin: 0 auto; display: grid; grid-template-columns: repeat(3, 1fr); align-items: stretch; }
.product-card { position: relative; min-height: 480px; padding: 36px; display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line); }
.product-card + .product-card { border-left: 0; }
.product-card.featured { margin: -16px 0; padding-top: 52px; background: var(--forest); color: #fff; border-color: var(--forest); box-shadow: var(--shadow); z-index: 2; }
.popular { position: absolute; inset: 0 0 auto; padding: 7px; color: var(--forest-dark); background: #d7eead; text-align: center; font-size: 11px; font-weight: 800; }
.product-number { color: #a6b0aa; font: 400 18px/1 Georgia, serif; }
.fruit-symbol { width: 110px; height: 110px; margin: 28px auto; position: relative; border-radius: 50%; background: var(--orange); box-shadow: inset -12px -10px 0 rgba(134, 50, 0, .16); }
.fruit-symbol::before { content: ""; position: absolute; width: 42px; height: 22px; left: 60px; top: -8px; border-radius: 100% 8px; background: var(--leaf); transform: rotate(-18deg); }
.fruit-symbol span { position: absolute; width: 6px; height: 11px; left: 52px; top: -4px; background: #41642f; }
.product-card h3 { margin: 0; font: 500 27px/1.3 Georgia, "Songti SC", serif; }
.product-card > p { min-height: 52px; color: var(--muted); }
.featured > p, .featured .spec-line span { color: rgba(255,255,255,.7); }
.spec-line { margin-top: auto; padding-top: 18px; display: flex; flex-direction: column; border-top: 1px solid currentColor; border-color: rgba(127,142,133,.4); }
.spec-line strong { font-size: 18px; }
.spec-line span { color: var(--muted); font-size: 12px; }
.price { margin: 18px 0 24px; color: var(--orange-dark); font: 600 34px/1 Georgia, serif; }
.featured .price { color: #ffb36b; }
.price small { margin-right: 3px; font-size: 16px; }
.price del { margin-left: 10px; color: #9aa69f; font: 400 13px/1 sans-serif; }
.featured .button.outline { color: #fff; border-color: rgba(255,255,255,.5); }
.featured .button.outline:hover { color: var(--forest-dark); background: #fff; }

.order-section { display: grid; grid-template-columns: .85fr 1.15fr; background: var(--paper); }
.order-aside { min-height: 820px; padding: 100px 7vw; color: #fff; background: var(--forest-dark); }
.order-aside .section-kicker { color: #afd57d; }
.order-aside h2 { margin: 20px 0; font: 500 44px/1.3 Georgia, "Songti SC", serif; }
.order-aside > p { color: rgba(255,255,255,.72); }
.order-assurance { margin-top: 68px; padding-top: 28px; display: grid; gap: 12px; border-top: 1px solid rgba(255,255,255,.25); color: #d8e4dd; font-size: 13px; }
.order-panel { padding: 85px 7vw; background: #fff; }
.form-heading { display: flex; gap: 22px; align-items: center; margin-bottom: 34px; }
.step-mark { width: 52px; height: 52px; flex: 0 0 auto; display: grid; place-items: center; color: var(--forest); border: 1px solid var(--forest); font: 500 18px/1 Georgia, serif; }
.form-heading h2 { margin: 4px 0 0; font: 500 28px/1.3 Georgia, "Songti SC", serif; }
.order-form, .stack-form { display: grid; gap: 20px; }
fieldset { padding: 0; margin: 0; border: 0; }
legend, label > span { display: block; margin-bottom: 8px; color: #47534c; font-size: 13px; font-weight: 800; }
label > span small { color: #89938d; font-weight: 400; }
.option-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.product-option { min-height: 90px; padding: 16px; display: grid; grid-template-columns: 18px 1fr; align-items: center; gap: 10px; border: 1px solid var(--line); cursor: pointer; }
.product-option input { position: absolute; opacity: 0; }
.radio-dot { width: 16px; height: 16px; border: 1px solid #8e9992; border-radius: 50%; }
.product-option input:checked ~ .radio-dot { border: 5px solid var(--forest); }
.product-option:has(input:checked) { border-color: var(--forest); background: #f0f6ef; }
.product-option > span:nth-of-type(2) { display: flex; flex-direction: column; }
.product-option strong { font-size: 14px; }
.product-option small { color: var(--muted); font-size: 11px; }
.product-option b { grid-column: 2; color: var(--orange-dark); font: 500 17px/1 Georgia, serif; }
.field-grid { display: grid; gap: 16px; }
.field-grid.two { grid-template-columns: 1fr 1fr; }
input, textarea, select { width: 100%; min-height: 49px; padding: 12px 13px; color: var(--ink); background: #fff; border: 1px solid #ccd4ce; border-radius: 3px; outline: none; }
textarea { min-height: 90px; resize: vertical; }
input:focus, textarea:focus, select:focus { border-color: var(--forest); box-shadow: 0 0 0 3px rgba(23,77,54,.1); }
.checkout-row { margin-top: 6px; padding-top: 22px; display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--line); }
.checkout-row > div { display: flex; flex-direction: column; }
.checkout-row span { color: var(--muted); font-size: 12px; }
.checkout-row strong { color: var(--orange-dark); font: 600 30px/1.2 Georgia, serif; }
.privacy-copy { margin: 0; color: #7f8983; font-size: 12px; }
.alert { padding: 14px 16px; border: 1px solid; border-radius: 4px; }
.alert p { margin: 0; }
.alert p + p { margin-top: 5px; }
.alert.error { color: var(--danger); background: #fff6f3; border-color: #eec7be; }
.success-panel { min-height: 620px; display: flex; flex-direction: column; align-items: flex-start; justify-content: center; }
.success-check { width: 60px; height: 60px; margin-bottom: 24px; display: grid; place-items: center; color: #fff; background: var(--forest); border-radius: 50%; font-size: 30px; }
.success-panel h2 { margin: 10px 0; font: 500 36px/1.3 Georgia, "Songti SC", serif; }
.order-number { width: 100%; margin: 26px 0 14px; padding: 18px; display: flex; align-items: center; justify-content: space-between; background: var(--paper); border-left: 3px solid var(--orange); }
.order-number span { color: var(--muted); font-size: 12px; }
.order-number strong { font: 500 18px/1 monospace; }
.success-panel .button { margin-top: 24px; }
.sold-out { min-height: 420px; display: grid; align-content: center; }

.track-callout { padding: 62px 8vw; display: flex; align-items: center; justify-content: space-between; gap: 30px; background: #ddecce; }
.track-callout h2 { margin: 10px 0 0; font: 500 31px/1.3 Georgia, "Songti SC", serif; }
footer { padding: 50px 6vw; display: flex; align-items: center; justify-content: space-between; gap: 24px; color: rgba(255,255,255,.74); background: #121d17; font-size: 12px; }
.footer-brand { display: flex; align-items: center; gap: 12px; color: #fff; }
.footer-brand > div { display: flex; flex-direction: column; }
.footer-brand small { color: rgba(255,255,255,.55); }

.track-page { background: var(--paper); }
.track-main { min-height: calc(100vh - 88px); padding: 90px 8vw 110px; display: grid; grid-template-columns: .75fr 1.25fr; gap: 8vw; }
.track-intro { padding-top: 35px; }
.track-intro .eyebrow { color: var(--orange-dark); }
.track-intro h1 { margin: 18px 0; color: var(--forest-dark); font: 500 50px/1.25 Georgia, "Songti SC", serif; }
.track-intro p { max-width: 520px; color: var(--muted); }
.track-panel { padding: 46px; background: #fff; box-shadow: var(--shadow); }
.track-form { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.track-form button { grid-column: 1 / -1; }
.track-panel .alert { margin-top: 20px; }
.empty-result { padding: 70px 20px 30px; text-align: center; }
.empty-result > span { width: 50px; height: 50px; margin: 0 auto; display: grid; place-items: center; color: var(--muted); border: 1px solid #b5beb8; border-radius: 50%; font: 500 24px/1 Georgia, serif; }
.empty-result h2 { font: 500 25px/1.3 Georgia, "Songti SC", serif; }
.empty-result p { color: var(--muted); }
.tracking-result { margin-top: 30px; padding-top: 28px; border-top: 1px solid var(--line); }
.tracking-top { display: flex; justify-content: space-between; gap: 20px; }
.tracking-top span { color: var(--muted); font-size: 12px; }
.tracking-top h2 { margin: 5px 0; font: 500 25px/1.3 Georgia, "Songti SC", serif; }
.status { height: 30px; padding: 4px 10px; border: 1px solid; border-radius: 3px; font-size: 12px; font-weight: 800; }
.status.success { color: #23633f; background: #ecf8ed; border-color: #aad1b2; }
.status.warning { color: #9a4c17; background: #fff5e9; border-color: #edc69d; }
.status.muted { color: #666f69; background: #f2f3f2; border-color: #d1d5d2; }
.timeline { margin: 34px 0; display: grid; grid-template-columns: repeat(4, 1fr); }
.timeline-step { position: relative; display: grid; justify-items: center; gap: 8px; color: #9ba39e; font-size: 11px; }
.timeline-step::before { content: ""; position: absolute; z-index: 0; width: 100%; height: 1px; right: 50%; top: 7px; background: #d8ded9; }
.timeline-step:first-child::before { display: none; }
.timeline-step i { position: relative; z-index: 1; width: 15px; height: 15px; background: #fff; border: 2px solid #bdc5c0; border-radius: 50%; }
.timeline-step.active { color: var(--forest); font-weight: 800; }
.timeline-step.active::before { background: var(--forest); }
.timeline-step.active i { background: var(--forest); border-color: var(--forest); }
.order-facts { margin: 0; display: grid; gap: 0; }
.order-facts div { padding: 12px 0; display: grid; grid-template-columns: 100px 1fr; border-bottom: 1px solid #edf0ed; }
.order-facts dt { color: var(--muted); font-size: 12px; }
.order-facts dd { margin: 0; font-size: 13px; font-weight: 700; }
.cancel-note { color: var(--danger); }
.simple-footer { padding-top: 30px; padding-bottom: 30px; }

.install-page { min-height: 100vh; color: #fff; background: var(--forest-dark); }
.install-shell { width: min(1120px, 90vw); min-height: 100vh; margin: 0 auto; padding: 70px 0; display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 8vw; }
.install-intro h1 { margin: 20px 0; font: 500 53px/1.22 Georgia, "Songti SC", serif; }
.install-intro p { color: rgba(255,255,255,.7); }
.install-note { margin-top: 30px; padding: 16px; border-left: 3px solid #afd57d; background: rgba(255,255,255,.07); font-size: 13px; }
.install-card { padding: 42px; color: var(--ink); background: #fff; box-shadow: 0 25px 60px rgba(0,0,0,.24); }
.install-card h2 { margin: 8px 0 25px; font: 500 29px/1.3 Georgia, "Songti SC", serif; }
.stack-form hr { width: 100%; margin: 5px 0; border: 0; border-top: 1px solid var(--line); }
.stack-form small { display: block; margin-top: 5px; color: var(--muted); font-size: 11px; }

@media (max-width: 900px) {
    .site-header { height: 72px; padding: 0 20px; }
    .site-header nav a:not(.nav-cta) { display: none; }
    .hero { min-height: 720px; }
    .hero-content { padding: 150px 24px 160px; width: 100%; }
    .hero h1 { font-size: 48px; }
    .origin-band { grid-template-columns: 1fr; padding: 80px 24px; }
    .origin-copy { grid-template-columns: 1fr; }
    .product-grid { grid-template-columns: 1fr; max-width: 540px; }
    .product-card + .product-card { border-left: 1px solid var(--line); border-top: 0; }
    .product-card.featured { margin: 0; }
    .order-section { grid-template-columns: 1fr; }
    .order-aside { min-height: auto; padding: 70px 24px; }
    .order-panel { padding: 65px 24px; }
    .track-main { grid-template-columns: 1fr; padding: 60px 24px 80px; }
    .track-intro { padding-top: 0; }
    .install-shell { grid-template-columns: 1fr; padding: 55px 0; }
}

@media (max-width: 620px) {
    .brand small { display: none; }
    .site-header .nav-cta { padding: 9px 12px; font-size: 12px; }
    .hero { min-height: 680px; }
    .hero h1 { font-size: 39px; }
    .hero-content > p { font-size: 15px; }
    .hero-actions { flex-direction: column; align-items: stretch; }
    .harvest-strip { padding: 0 14px; min-height: 74px; }
    .harvest-strip span { justify-content: center; font-size: 11px; gap: 5px; }
    .harvest-strip b { display: none; }
    .section-heading h2, .order-aside h2 { font-size: 34px; }
    .origin-metrics { grid-template-columns: 1fr; }
    .origin-metrics div, .origin-metrics div:nth-child(2), .origin-metrics div:last-child { padding: 20px 0; border-right: 0; border-bottom: 1px solid #bdcabc; }
    .product-section { padding: 75px 18px; }
    .product-card { min-height: 450px; padding: 30px; }
    .option-list { grid-template-columns: 1fr; }
    .product-option { min-height: 70px; grid-template-columns: 18px 1fr auto; }
    .product-option b { grid-column: 3; grid-row: 1; }
    .field-grid.two { grid-template-columns: 1fr; }
    .checkout-row { align-items: stretch; gap: 16px; flex-direction: column; }
    .track-callout { padding: 45px 24px; align-items: stretch; flex-direction: column; }
    footer { align-items: flex-start; flex-direction: column; }
    .track-intro h1 { font-size: 38px; }
    .track-panel { padding: 26px 20px; }
    .track-form { grid-template-columns: 1fr; }
    .order-facts div { grid-template-columns: 82px 1fr; }
    .install-intro h1 { font-size: 39px; }
    .install-card { padding: 28px 20px; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition: none !important; }
}