:root {
  --ink: #3d2a22;
  --muted: #705b4f;
  --primary: #a44a2b;
  --primary-dark: #843a21;
  --amber: #d28b3e;
  --paper: #fbf3e8;
  --line: #e8d9cb;
  --white: #fffcf8;
  --price: #a13c20;
  --night: #4b3026;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--white); font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif; line-height: 1.7; -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
a, button { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--price); outline-offset: 4px; }
.container { width: min(1200px, calc(100% - 48px)); margin-inline: auto; }
.section { padding-block: 80px; }
.section h2 { margin: 0; font-size: clamp(28px, 3vw, 38px); line-height: 1.35; letter-spacing: -.035em; }
.section-kicker { margin: 0 0 12px; color: var(--primary); font-size: 12px; font-weight: 800; letter-spacing: .09em; }
.section-heading > div { min-width: 0; max-width: 900px; }
.section-heading > .text-link { flex-shrink: 0; white-space: nowrap; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 30px; }
.section-heading > div > p:last-child:not(.section-kicker) { margin: 15px 0 0; color: var(--muted); font-size: 15px; }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; gap: 22px; padding: 10px 24px; border: 1px solid transparent; border-radius: 9px; font-size: 15px; font-weight: 700; transition: background-color .18s ease, border-color .18s ease, transform .18s ease; }
.button-primary { color: var(--white); background: var(--primary); box-shadow: 0 5px 12px rgba(164,74,43,.13); }
.button-primary:hover { background: var(--primary-dark); transform: translateY(-1px); }
.button-outline { color: var(--primary); border-color: #dec1a9; background: var(--white); }
.button-outline:hover { background: #fbecdc; border-color: var(--primary); }
.text-link { display: inline-flex; align-items: center; gap: 16px; min-height: 44px; color: var(--primary); font-size: 14px; font-weight: 700; }
.text-link:hover { text-decoration: underline; text-underline-offset: 5px; }

.site-header { position: relative; z-index: 20; background: var(--white); border-bottom: 1px solid var(--line); }
.utility-bar { color: #786354; background: #fbf2e7; border-bottom: 1px solid #f0e2d4; font-size: 12px; }
.utility-inner { min-height: 33px; display: flex; align-items: center; justify-content: space-between; gap: 15px; }
.header-main { min-height: 90px; display: flex; align-items: center; justify-content: space-between; gap: 25px; }
.brand { display: block; flex: 0 1 296px; width: 296px; }
.brand img { width: 100%; height: auto; }
.site-menu { display: flex; align-items: center; gap: 30px; font-size: 14px; font-weight: 700; }
.site-menu > a { display: inline-flex; min-height: 46px; align-items: center; justify-content: center; }
.site-menu > a:hover { color: var(--primary); }
.site-menu .nav-action { gap: 23px; padding-inline: 20px; color: var(--white); background: var(--primary); border-radius: 8px; }
.site-menu .nav-action:hover { color: var(--white); background: var(--primary-dark); }
.menu-toggle { display: none; flex: 0 0 46px; width: 46px; height: 46px; padding: 11px; background: var(--white); border: 1px solid var(--line); border-radius: 8px; }
.menu-toggle span { display: block; height: 2px; margin: 4px 0; background: var(--primary); }

.hero { position: relative; isolation: isolate; overflow: hidden; background: #fff7ec; border-bottom: 1px solid var(--line); }
.hero::before { position: absolute; z-index: -1; inset: 0; content: ""; background: radial-gradient(#e6d2b8 .8px, transparent .8px); background-size: 19px 19px; mask-image: linear-gradient(90deg, transparent 32%, #000 100%); }
.hero-layout { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .95fr); gap: 70px; align-items: center; padding-block: 60px 66px; }
.eyebrow { display: flex; align-items: center; gap: 9px; margin: 0 0 23px; color: var(--primary); font-size: 13px; font-weight: 700; }
.eyebrow > span { display: block; width: 7px; height: 7px; border-radius: 50%; background: var(--amber); box-shadow: 0 0 0 4px #f9e5c7; }
.hero h1 { margin: 0; font-size: clamp(33px, 3.7vw, 48px); line-height: 1.4; letter-spacing: -.04em; }
.hero h1 > span { color: var(--primary); }
.hero-lead { max-width: 570px; margin: 23px 0 0; color: var(--muted); font-size: 16px; line-height: 1.95; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 13px; margin-top: 29px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 11px 22px; margin: 25px 0 0; padding: 0; color: var(--muted); list-style: none; font-size: 12px; }
.hero-points li { display: flex; align-items: center; gap: 7px; }
.hero-points li > span { color: var(--primary); font-weight: 800; }
.signal-panel { position: relative; min-width: 0; overflow: hidden; color: var(--white); background: var(--night); border: 1px solid #795340; border-radius: 17px; box-shadow: 0 18px 35px rgba(75,48,38,.12); }
.signal-panel::before { position: absolute; right: -30px; top: 25px; width: 125px; height: 125px; content: ""; border: 1px solid #8c674c; border-radius: 50%; pointer-events: none; }
.panel-heading { position: relative; display: flex; align-items: center; justify-content: space-between; min-height: 53px; padding-inline: 27px; border-bottom: 1px solid #785744; color: #ead4bf; font-size: 11px; font-weight: 700; letter-spacing: .08em; }
.panel-heading > span:last-child { color: #f6cf99; font-size: 20px; }
.panel-body { position: relative; padding: 25px 28px 10px; }
.panel-body h2 { margin: 0; font-size: 26px; font-weight: 750; line-height: 1.4; }
.pathway { margin: 22px 0 0; padding: 0; list-style: none; }
.pathway li { position: relative; display: grid; grid-template-columns: 34px 1fr; gap: 14px; padding-block: 13px; }
.pathway li + li { border-top: 1px solid #785744; }
.path-number { display: grid; place-items: center; width: 30px; height: 30px; margin-top: 2px; color: #f6cf99; border: 1px solid #a77b52; border-radius: 8px; font-family: Arial, sans-serif; font-size: 12px; font-weight: 700; }
.pathway strong { display: block; font-size: 15px; }
.pathway p { margin: 3px 0 0; color: #ead4bf; font-size: 12px; line-height: 1.65; }
.panel-note { position: relative; margin: 0; padding: 14px 26px; color: #f0dfcd; background: #5a3b2d; border-top: 1px solid #8c634a; font-size: 11px; }

.products-section { background: var(--white); }
.sort-label { display: inline-flex; align-items: center; gap: 9px; padding: 8px 13px; color: var(--primary); background: #fff0df; border: 1px solid #eed9c0; border-radius: 22px; white-space: nowrap; font-size: 12px; font-weight: 700; }
.catalog-note { display: flex; align-items: center; gap: 10px; margin: 0 0 26px; padding: 13px 17px; color: var(--muted); border-left: 2px solid #be8359; border-radius: 0 7px 7px 0; background: var(--paper); font-size: 12px; }
.catalog-note > span { flex: 0 0 17px; display: grid; place-items: center; width: 17px; height: 17px; color: var(--primary); border: 1px solid #bb936e; border-radius: 50%; font-size: 11px; line-height: 1; }
.product-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 21px; }
.product-card { min-width: 0; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: 13px; background: var(--white); transition: border-color .18s ease, box-shadow .18s ease; }
.product-card:hover { border-color: #c58c64; box-shadow: 0 9px 25px rgba(164,74,43,.08); }
.product-image { position: relative; flex: 0 0 auto; width: 100%; aspect-ratio: 1; overflow: hidden; background: var(--white); border-bottom: 1px solid #f3e8dd; border-radius: 12px 12px 0 0; }
.product-image img { position: absolute; inset: 0; width: 100%; height: 100%; padding: 18px; object-fit: contain; }
.product-info { display: flex; flex: 1; flex-direction: column; padding: 18px 20px 20px; }
.product-info h3 { min-height: 50px; margin: 0 0 16px; font-size: 16px; font-weight: 700; line-height: 1.6; overflow-wrap: anywhere; }
.product-bottom { display: flex; align-items: end; justify-content: space-between; gap: 10px; margin-top: auto; }
.price { margin: 0; }
.price > span { display: block; margin-bottom: 4px; color: var(--muted); font-size: 12px; }
.price strong { display: block; color: var(--price); font-family: Arial, "Microsoft YaHei", sans-serif; font-size: 26px; font-weight: 700; line-height: 1.2; font-variant-numeric: tabular-nums; }
.product-arrow { display: grid; place-items: center; flex: 0 0 32px; width: 32px; height: 32px; color: var(--primary); border: 1px solid #ead7c4; border-radius: 50%; background: #fff3e5; font-size: 18px; }
.catalog-footer { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-top: 30px; padding-top: 26px; border-top: 1px solid var(--line); }
.catalog-footer p { margin: 0; color: var(--muted); font-size: 13px; }

.scenarios-section { background: var(--paper); }
.scenario-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.scenario-grid article { min-width: 0; padding: 26px 23px; border: 1px solid var(--line); border-radius: 12px; background: var(--white); }
.scenario-symbol { display: block; margin-bottom: 28px; color: var(--primary); font-family: Arial, sans-serif; font-size: 22px; font-weight: 700; line-height: 1; }
.scenario-grid h3 { margin: 0 0 10px; font-size: 20px; }
.scenario-grid p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.85; }

.process-section { color: var(--white); background: var(--night); }
.process-section .section-kicker { color: #f2c38b; }
.process-section .section-heading > div > p:last-child { color: #ead4bf; }
.process-section .text-link { color: #f7d7ad; }
.process-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; margin: 0; padding: 0; list-style: none; border-top: 1px solid #9b7458; }
.process-grid li { min-width: 0; padding: 28px 25px 0; }
.process-grid li:first-child { padding-left: 0; }
.process-grid li + li { border-left: 1px solid #7c5944; }
.step-number { display: block; margin-bottom: 21px; color: #f2c38b; font-family: Arial, sans-serif; font-size: 28px; font-weight: 700; line-height: 1; }
.process-grid h3 { margin: 0 0 11px; font-size: 18px; }
.process-grid p { margin: 0; color: #ecdbc8; font-size: 14px; line-height: 1.9; }

.selection-section { background: var(--white); }
.selection-layout { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.3fr); align-items: center; gap: 70px; }
.selection-intro > p:not(.section-kicker) { max-width: 330px; margin: 18px 0; color: var(--muted); font-size: 14px; line-height: 1.9; }
.checklist { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 15px; margin: 0; }
.checklist > div { min-width: 0; padding: 23px; border: 1px solid var(--line); border-radius: 12px; background: var(--paper); }
.checklist dt { display: flex; align-items: start; gap: 9px; font-size: 15px; font-weight: 700; }
.checklist dt > span { color: var(--primary); }
.checklist dd { margin: 13px 0 0; color: var(--muted); font-size: 14px; line-height: 1.85; }

.faq-section { background: var(--paper); }
.faq-layout { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.3fr); gap: 70px; }
.faq-intro > p:not(.section-kicker) { max-width: 340px; margin: 18px 0 26px; color: var(--muted); font-size: 14px; line-height: 1.9; }
.faq-list { padding: 0 25px; border: 1px solid var(--line); border-radius: 13px; background: var(--white); }
.faq-item + .faq-item { border-top: 1px solid var(--line); }
.faq-item summary { position: relative; display: flex; align-items: center; min-height: 70px; padding: 18px 30px 18px 0; font-size: 14px; font-weight: 700; list-style: none; cursor: pointer; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { position: absolute; right: 0; content: "+"; color: var(--primary); font-size: 23px; font-weight: 400; }
.faq-item[open] summary::after { content: "−"; }
.faq-item > p { margin: 0; padding: 0 20px 23px 0; color: var(--muted); font-size: 14px; line-height: 1.9; }

.site-footer { background: var(--white); border-top: 1px solid var(--line); }
.footer-layout { display: grid; grid-template-columns: 1.5fr .65fr 1fr; gap: 64px; padding-block: 46px 37px; }
.footer-brand img { width: min(285px, 100%); height: auto; }
.footer-brand p { max-width: 360px; margin: 14px 0 0; color: var(--muted); font-size: 13px; }
.footer-layout h2 { margin: 0 0 12px; font-size: 14px; }
.footer-links a { display: flex; align-items: center; gap: 12px; min-height: 44px; color: var(--muted); font-size: 13px; }
.footer-links a:hover { color: var(--primary); }
.footer-info p { margin: 8px 0 0; color: var(--muted); font-size: 12px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 15px; padding-block: 18px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.back-to-top { position: fixed; right: 21px; bottom: 21px; z-index: 25; width: 46px; height: 46px; color: var(--primary); border: 1px solid #d6b79a; border-radius: 10px; background: var(--white); box-shadow: 0 5px 15px rgba(75,48,38,.08); font-size: 23px; }
.back-to-top[hidden] { display: none; }

@media (max-width: 1050px) {
  .hero-layout { gap: 35px; }
  .hero h1 { font-size: 36px; }
  .site-menu { gap: 22px; }
  .selection-layout, .faq-layout { gap: 35px; }
  .footer-layout { gap: 35px; }
}
@media (max-width: 900px) {
  .hero-layout { grid-template-columns: 1fr; gap: 35px; padding-block: 50px; }
  .hero-copy { max-width: 660px; }
  .hero h1 { font-size: 42px; }
  .signal-panel { width: 100%; max-width: 650px; }
  .product-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
  .product-info { padding-inline: 16px; }
  .product-info h3 { font-size: 15px; }
  .scenario-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .process-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px 0; }
  .process-grid li:nth-child(3) { padding-left: 0; border-left: 0; }
  .selection-layout, .faq-layout { grid-template-columns: 1fr; gap: 28px; }
  .selection-intro > p:not(.section-kicker), .faq-intro > p:not(.section-kicker) { max-width: none; }
  .selection-intro h2 br { display: none; }
}
@media (max-width: 760px) {
  .header-main { min-height: 78px; gap: 15px; }
  .brand { flex: 0 1 275px; width: min(275px, calc(100% - 61px)); }
  .menu-toggle { display: block; }
  .site-menu { position: absolute; display: none; top: 100%; left: 24px; right: 24px; flex-direction: column; align-items: stretch; gap: 0; padding: 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--white); box-shadow: 0 12px 24px rgba(75,48,38,.11); }
  .site-menu.is-open { display: flex; }
  .site-menu > a { min-height: 48px; }
  .hero h1 { font-size: clamp(29px, 5.6vw, 40px); }
  .footer-layout { grid-template-columns: 1.3fr 1fr; gap: 28px; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 600px) {
  .container { width: calc(100% - 30px); }
  .utility-inner { min-height: 31px; justify-content: center; font-size: 11px; }
  .utility-inner > span:last-child { display: none; }
  .header-main { min-height: 75px; }
  .brand { flex-basis: 254px; }
  .hero-layout { padding-block: 40px 45px; gap: 32px; }
  .eyebrow { margin-bottom: 18px; font-size: 12px; }
  .hero h1 { font-size: clamp(28px, 8.1vw, 38px); }
  .hero-lead { margin-top: 18px; font-size: 14px; }
  .hero-actions { display: grid; grid-template-columns: 1.2fr 1fr; gap: 10px; margin-top: 24px; }
  .hero-actions .button { padding-inline: 12px; gap: 12px; font-size: 14px; }
  .hero-points { gap: 10px 14px; margin-top: 22px; font-size: 11px; }
  .signal-panel { border-radius: 13px; }
  .panel-heading { min-height: 49px; padding-inline: 21px; }
  .panel-body { padding: 22px 21px 8px; }
  .panel-body h2 { font-size: 24px; }
  .pathway { margin-top: 18px; }
  .pathway li { gap: 12px; padding-block: 12px; }
  .pathway strong { font-size: 14px; }
  .pathway p { font-size: 12px; }
  .panel-note { padding: 13px 20px; font-size: 11px; }
  .section { padding-block: 56px; }
  .section h2 { font-size: 27px; }
  .section-heading { flex-direction: column; align-items: start; gap: 17px; margin-bottom: 22px; }
  .section-heading > div > p:last-child:not(.section-kicker) { font-size: 14px; }
  .section-kicker { font-size: 11px; }
  .sort-label { padding: 6px 11px; font-size: 11px; }
  .catalog-note { align-items: start; padding: 12px; font-size: 11px; line-height: 1.85; }
  .catalog-note > span { margin-top: 2px; }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .product-card { border-radius: 10px; }
  .product-image { border-radius: 9px 9px 0 0; }
  .product-image img { padding: 11px; }
  .product-info { padding: 13px 12px 15px; }
  .product-info h3 { min-height: 46px; margin-bottom: 13px; font-size: 13px; line-height: 1.7; }
  .price > span { font-size: 11px; }
  .price strong { font-size: 23px; }
  .product-arrow { flex-basis: 26px; width: 26px; height: 26px; font-size: 16px; }
  .catalog-footer { flex-direction: column; align-items: stretch; gap: 16px; margin-top: 24px; padding-top: 22px; }
  .catalog-footer p { font-size: 12px; }
  .scenario-grid { grid-template-columns: 1fr; gap: 12px; }
  .scenario-grid article { padding: 22px 16px; border-radius: 10px; }
  .scenario-symbol { margin-bottom: 16px; font-size: 19px; }
  .scenario-grid h3 { font-size: 17px; }
  .scenario-grid p { font-size: 13px; }
  .process-grid { grid-template-columns: 1fr; gap: 0; }
  .process-grid li, .process-grid li:nth-child(3) { padding: 23px 0; }
  .process-grid li + li { border-left: 0; border-top: 1px solid #7c5944; }
  .step-number { margin-bottom: 15px; font-size: 25px; }
  .process-grid h3 { font-size: 17px; }
  .checklist { grid-template-columns: 1fr; gap: 12px; }
  .checklist > div { padding: 20px; border-radius: 10px; }
  .checklist dt { font-size: 14px; }
  .checklist dd { font-size: 13px; }
  .faq-list { padding-inline: 18px; }
  .faq-item summary { min-height: 67px; font-size: 14px; }
  .faq-item > p { padding-right: 12px; font-size: 13px; }
  .footer-layout { gap: 27px 20px; padding-block: 35px 29px; }
  .footer-brand img { width: 265px; }
  .footer-bottom { flex-direction: column; gap: 3px; font-size: 11px; }
  .back-to-top { right: 15px; bottom: 15px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}