* { box-sizing: border-box; margin: 0; padding: 0; }
ul { list-style: none; }

:root {
    --primary: #0066cc;
    --primary-dark: #004da3;
    --primary-soft: #e8f1fb;
    --ink: #17233b;
    --muted: #5d6b82;
    --line: #d9e2ef;
    --bg: #f5f7fb;
    --success: #168a4a;
    --success-soft: #e8f7ee;
    --warning: #b7791f;
    --warning-soft: #fff5e5;
    --danger: #c53030;
    --shadow: 0 6px 18px rgba(23, 35, 59, .08);
}

html { scroll-behavior: smooth; }
body { min-width: 320px; color: var(--ink); background: var(--bg); font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif; line-height: 1.6; }
a { color: inherit; text-decoration: none; }
.container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.narrow { width: min(940px, calc(100% - 40px)); margin: 0 auto; }

.site-header { position: sticky; top: 0; z-index: 20; color: #fff; background: var(--primary); box-shadow: 0 2px 10px rgba(0,77,163,.22); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 76px; }
.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.brand-mark { display: grid; place-items: center; width: 42px; height: 42px; flex: 0 0 42px; border: 1px solid rgba(255,255,255,.42); border-radius: 8px; background: rgba(255,255,255,.14); font-size: 20px; font-weight: 700; }
.brand-text { min-width: 0; }
.brand-text strong { display: block; font-size: 18px; line-height: 1.3; }
.brand-text span { display: block; color: rgba(255,255,255,.82); font-size: 13px; white-space: nowrap; }
.main-nav { display: flex; align-items: center; justify-content: flex-end; gap: 6px; flex-wrap: wrap; }
.main-nav a { padding: 8px 12px; border-radius: 6px; color: rgba(255,255,255,.88); font-size: 15px; }
.main-nav a:hover, .main-nav a.active { color: #fff; background: rgba(255,255,255,.14); }

.page-main { padding: 42px 0 64px; }
.home-hero { color: #fff; background: linear-gradient(115deg, rgba(0,77,163,.96), rgba(0,102,204,.9)), repeating-linear-gradient(135deg, rgba(255,255,255,.08) 0 18px, transparent 18px 36px); }
.hero-grid { display: grid; grid-template-columns: minmax(0,1.15fr) minmax(340px,.85fr); gap: 44px; align-items: center; min-height: 430px; padding: 58px 0; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 16px; padding: 6px 12px; border: 1px solid rgba(255,255,255,.35); border-radius: 999px; background: rgba(255,255,255,.12); font-size: 13px; }
.home-hero h1 { max-width: 620px; font-size: clamp(34px,4vw,52px); line-height: 1.16; }
.home-hero .intro { max-width: 610px; margin-top: 18px; color: rgba(255,255,255,.9); font-size: 17px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.hero-metrics { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 18px; margin-top: 34px; }
.hero-metrics strong { display: block; font-size: 24px; }
.hero-metrics span { color: rgba(255,255,255,.78); font-size: 13px; }
.flow-panel { padding: 24px; border: 1px solid rgba(255,255,255,.3); border-radius: 8px; background: rgba(4,45,92,.38); }
.flow-panel h2 { margin-bottom: 6px; font-size: 20px; }
.flow-panel p { color: rgba(255,255,255,.78); font-size: 14px; }
.flow-steps { display: grid; gap: 14px; margin-top: 20px; }
.flow-step { display: grid; grid-template-columns: 34px minmax(0,1fr); gap: 12px; align-items: center; }
.flow-step i { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: #fff; color: var(--primary-dark); font-style: normal; font-weight: 700; }
.flow-step span { color: rgba(255,255,255,.76); font-size: 13px; }

.section { margin-top: 58px; }
.section-head { max-width: 740px; margin-bottom: 28px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.kicker { color: var(--primary); font-size: 14px; font-weight: 700; }
.section-head h2 { margin-top: 6px; font-size: clamp(27px,3vw,38px); line-height: 1.25; }
.section-head p { color: var(--muted); margin-top: 10px; }
.product-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 18px; }
.product-card { position: relative; display: flex; flex-direction: column; min-height: 390px; padding: 22px; border: 1px solid var(--line); border-radius: 8px; background: #fff; box-shadow: var(--shadow); transition: transform .2s, border-color .2s; }
.product-card:hover { border-color: #9dbde5; transform: translateY(-3px); }
.product-tag { position: absolute; top: 18px; right: 18px; padding: 4px 8px; border-radius: 4px; background: var(--primary-soft); color: var(--primary-dark); font-size: 12px; font-weight: 700; }
.product-card.hot .product-tag { background: #fff1e5; color: #b84d00; }
.product-card h3 { max-width: calc(100% - 72px); font-size: 21px; }
.product-note { min-height: 44px; margin-top: 6px; color: var(--muted); font-size: 14px; }
.feature-list { display: grid; gap: 10px; margin: 20px 0; }
.feature-list li { position: relative; padding-left: 20px; color: #40506a; font-size: 14px; }
.feature-list li::before { content: ""; position: absolute; top: 8px; left: 3px; width: 7px; height: 7px; border-radius: 50%; background: var(--primary); }
.price-row { margin-top: auto; }
.price { color: #d0342c; font-size: 30px; font-weight: 800; line-height: 1.2; }
.price span { color: var(--muted); margin-left: 8px; font-size: 14px; font-weight: 400; text-decoration: line-through; }
.price-unit { color: var(--muted); font-size: 13px; }

.button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 10px 20px; border: 0; border-radius: 6px; background: var(--primary); color: #fff; font: inherit; font-size: 15px; font-weight: 700; cursor: pointer; transition: background .2s, color .2s, border-color .2s; }
.button:hover { background: var(--primary-dark); }
.button.ghost { border: 1px solid rgba(255,255,255,.62); background: transparent; color: #fff; }
.button.ghost:hover { background: rgba(255,255,255,.12); }
.button.light { background: #fff; color: var(--primary-dark); }
.button.light:hover { background: #edf5ff; }
.button.secondary { border: 1px solid var(--primary); background: #fff; color: var(--primary); }
.button.secondary:hover { background: var(--primary-soft); }
.button.success { background: var(--success); }
.button.success:hover { background: #116c3c; }
.button.block { width: 100%; }
.button:disabled { cursor: not-allowed; opacity: .68; }

.about-band { padding: 44px 0; background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.about-grid { display: grid; grid-template-columns: minmax(0,1.2fr) minmax(300px,.8fr); gap: 40px; align-items: start; }
.about-grid p { color: var(--muted); margin-top: 14px; }
.about-points { display: grid; gap: 12px; }
.about-point { display: grid; grid-template-columns: 30px minmax(0,1fr); gap: 10px; align-items: start; padding: 14px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); }
.about-point i { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 6px; background: var(--primary-soft); color: var(--primary); font-style: normal; font-weight: 700; font-size: 13px; }
.contact-band { margin-top: 58px; padding: 44px 0; color: #fff; background: linear-gradient(120deg,#004da3,#0066cc); }
.contact-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 24px; }
.contact-item span { display: block; color: rgba(255,255,255,.76); font-size: 13px; }
.contact-item strong { display: block; margin-top: 6px; font-size: 17px; }

.page-head { padding: 34px 0; color: #fff; background: linear-gradient(120deg,#004da3,#0066cc); }
.page-head h1 { margin-top: 4px; font-size: clamp(30px,3vw,40px); }
.page-head p { max-width: 740px; margin-top: 10px; color: rgba(255,255,255,.82); font-size: 15px; }
.panel { padding: 24px; border: 1px solid var(--line); border-radius: 8px; background: #fff; box-shadow: var(--shadow); }
.panel + .panel { margin-top: 20px; }
.panel-title { margin-bottom: 18px; font-size: 20px; }
.form-grid { display: grid; gap: 18px; }
.field { display: grid; gap: 7px; }
.field label { font-size: 14px; font-weight: 700; }
.field input, .field select, .field textarea { width: 100%; min-height: 44px; padding: 10px 12px; border: 1px solid #bccbdd; border-radius: 6px; color: var(--ink); background: #fff; font: inherit; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--primary); outline: 2px solid rgba(0,102,204,.16); }
.field textarea { min-height: 92px; resize: vertical; }
.field-error { min-height: 20px; color: var(--danger); font-size: 13px; }
.check-field { display: grid; grid-template-columns: auto minmax(0,1fr); gap: 8px; align-items: start; color: var(--muted); font-size: 13px; }
.check-field input { width: 18px; height: 18px; margin-top: 2px; }
.confirm-grid, .cashier-grid, .result-layout { display: grid; grid-template-columns: minmax(0,1.35fr) minmax(300px,.65fr); gap: 20px; align-items: start; }
.summary-list div { display: flex; justify-content: space-between; gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.summary-list div:last-child { border-bottom: 0; }
.summary-list span { color: var(--muted); flex: 0 0 auto; }
.summary-list strong { text-align: right; }
.pay-total { margin-top: 10px; padding: 14px; border-radius: 6px; background: var(--primary-soft); color: var(--primary-dark); text-align: center; }
.pay-total strong { display: block; color: #d0342c; font-size: 28px; }
.status-pill { display: inline-flex; align-items: center; min-height: 26px; padding: 3px 10px; border-radius: 999px; background: var(--warning-soft); color: var(--warning); font-size: 13px; font-weight: 700; }
.status-pill.paying { background: var(--primary-soft); color: var(--primary-dark); }
.status-pill.paid, .status-pill.completed { background: var(--success-soft); color: var(--success); }
.stepper { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 8px; margin-bottom: 20px; }
.step { padding: 12px 10px; border: 1px solid var(--line); border-radius: 6px; background: #fff; color: var(--muted); text-align: center; font-size: 13px; }
.step.active { border-color: #94bde8; background: var(--primary-soft); color: var(--primary-dark); font-weight: 700; }
.step.done { border-color: #9bd7b5; background: var(--success-soft); color: var(--success); font-weight: 700; }
.pay-methods { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 12px; margin-top: 16px; }
.pay-method { position: relative; display: grid; gap: 5px; padding: 15px; border: 1px solid var(--line); border-radius: 8px; background: #fff; cursor: pointer; }
.pay-method input { position: absolute; top: 12px; right: 12px; }
.pay-method strong { font-size: 16px; }
.pay-method span { color: var(--muted); font-size: 13px; }
.pay-method:has(input:checked) { border-color: var(--primary); background: var(--primary-soft); }
.qr-zone { display: grid; justify-items: center; gap: 14px; padding: 20px; border: 1px dashed #9dbde5; border-radius: 8px; background: #f9fbff; text-align: center; }
.qr-box { position: relative; width: 184px; height: 184px; overflow: hidden; border: 8px solid #fff; border-radius: 6px; background: repeating-linear-gradient(90deg,#17233b 0 12px,#fff 12px 24px), repeating-linear-gradient(0deg,#17233b 0 12px,#fff 12px 24px); background-blend-mode: difference; box-shadow: 0 3px 12px rgba(23,35,59,.14); }
.qr-box::before, .qr-box::after { content: ""; position: absolute; width: 36px; height: 36px; background: #17233b; box-shadow: 0 0 0 8px #fff, 0 0 0 16px #17233b; }
.qr-box::before { top: 14px; left: 14px; }
.qr-box::after { right: 14px; bottom: 14px; }
.qr-note { color: var(--muted); font-size: 13px; }
.result-state { text-align: center; }
.result-icon { display: grid; place-items: center; width: 76px; height: 76px; margin: 4px auto 16px; border-radius: 50%; background: var(--success-soft); color: var(--success); font-size: 34px; font-weight: 800; }
.expiry-note { margin-top: 18px; padding: 14px; border-left: 4px solid var(--success); border-radius: 6px; background: var(--success-soft); color: #14563a; text-align: left; font-size: 14px; }
.order-tools { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 18px; }
.query-form { display: grid; grid-template-columns: minmax(220px,1fr) auto; gap: 12px; align-items: start; }
.order-list { display: grid; gap: 14px; }
.order-item { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 18px; padding: 18px; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.order-item h3 { font-size: 18px; }
.order-meta { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 8px; color: var(--muted); font-size: 13px; }
.order-amount { color: #d0342c; font-size: 22px; font-weight: 800; }
.order-actions { display: flex; align-items: center; justify-content: flex-end; gap: 10px; }
.empty-state { padding: 34px 20px; border: 1px dashed var(--line); border-radius: 8px; background: #fff; color: var(--muted); text-align: center; }
.empty-state strong { display: block; margin-bottom: 6px; color: var(--ink); }
.loading-overlay { position: fixed; inset: 0; z-index: 100; display: grid; place-content: center; justify-items: center; gap: 14px; color: #fff; background: rgba(23,35,59,.72); text-align: center; }
.spinner { width: 42px; height: 42px; border: 4px solid rgba(255,255,255,.32); border-top-color: #fff; border-radius: 50%; animation: spin .9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.modal-overlay { position: fixed; inset: 0; z-index: 110; display: grid; place-items: center; padding: 20px; background: rgba(23,35,59,.55); }
.modal { width: min(360px,100%); padding: 24px; border: 1px solid var(--line); border-radius: 8px; background: #fff; box-shadow: 0 16px 40px rgba(23,35,59,.22); text-align: center; }
.modal h2 { margin-bottom: 8px; font-size: 20px; }
.modal p { color: var(--muted); }
.modal-phone { margin-top: 6px; color: var(--primary-dark); font-weight: 700; }
.modal-phone a { color: var(--primary); }
.modal .button { margin-top: 18px; }
[hidden] { display: none !important; }
.site-footer { padding: 32px 0; color: #6d7b91; background: #eaeff6; font-size: 14px; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.footer-nav { display: flex; gap: 18px; flex-wrap: wrap; }
.footer-nav a:hover, .footer-copy a:hover { color: var(--primary); }
.footer-copy { margin-top: 14px; }

@media (max-width: 1000px) {
    .product-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
    .hero-grid, .confirm-grid, .cashier-grid, .result-layout, .about-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
    .header-inner { align-items: flex-start; flex-direction: column; gap: 10px; padding: 14px 0; }
    .main-nav { justify-content: flex-start; width: 100%; overflow-x: auto; padding-bottom: 3px; }
    .main-nav a { padding: 7px 10px; white-space: nowrap; }
    .hero-grid { min-height: 0; padding: 38px 0; }
    .hero-metrics, .product-grid, .contact-grid, .pay-methods, .stepper, .query-form, .order-item { grid-template-columns: 1fr; }
    .order-actions { justify-content: flex-start; }
    .panel { padding: 18px; }
    .price { font-size: 26px; }
}

@media (max-width: 480px) {
    .container, .narrow { width: min(100% - 24px, 940px); }
    .product-grid { grid-template-columns: 1fr; }
    .button, .hero-actions { width: 100%; }
    .hero-actions { flex-direction: column; }
    .footer-inner { flex-direction: column; align-items: flex-start; }
}