:root {
  --ink: #17211c;
  --muted: #677169;
  --paper: #f4f1e9;
  --cream: #fbfaf6;
  --line: #d9d5ca;
  --red: #9b2e29;
  --green: #173c30;
  --deep: #10281f;
  --gold: #c29a5b;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: Inter, "Microsoft YaHei", Arial, sans-serif; line-height: 1.6; }
img { max-width: 100%; display: block; }
a { color: inherit; }
button, input, textarea, select { font: inherit; }

.topbar { display: flex; justify-content: space-between; gap: 20px; padding: 7px clamp(20px, 5vw, 84px); color: #d5dfd9; background: var(--deep); font-size: 10px; letter-spacing: .04em; }
.topbar p { margin: 0; }
.topbar div { display: flex; gap: 18px; }
.topbar a { text-decoration: none; }
.site-header { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; justify-content: space-between; padding: 13px clamp(20px, 5vw, 84px); border-bottom: 1px solid rgba(217,213,202,.8); background: rgba(251,250,246,.95); backdrop-filter: blur(14px); }
.brand { display: flex; align-items: center; gap: 11px; text-decoration: none; letter-spacing: .13em; }
.brand-logo { width: 82px; height: 82px; object-fit: contain; background: #fff; }
.brand-mark { display: grid; place-items: center; width: 41px; height: 41px; color: #fff; background: var(--red); font-family: Georgia, serif; font-size: 25px; font-weight: 700; }
.brand strong, .brand small { display: block; line-height: 1.15; }
.brand small { margin-top: 4px; color: var(--muted); font-size: 8px; letter-spacing: .17em; }
nav { display: flex; gap: clamp(18px, 2.6vw, 38px); }
nav a { position: relative; font-size: 12px; font-weight: 800; text-decoration: none; }
nav a::after { content: ""; position: absolute; right: 0; bottom: -8px; left: 0; height: 1px; background: var(--red); transform: scaleX(0); transition: transform .2s ease; }
nav a:hover::after { transform: scaleX(1); }
.header-actions { display: flex; align-items: center; gap: 10px; }
.language { padding: 9px; border: 0; color: var(--green); background: transparent; font-weight: 900; cursor: pointer; }
.button { display: inline-flex; align-items: center; justify-content: center; padding: 13px 20px; border: 1px solid var(--green); background: var(--green); color: #fff; text-decoration: none; font-size: 12px; font-weight: 900; letter-spacing: .025em; cursor: pointer; transition: transform .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button.compact { padding: 9px 15px; }
.button.ghost { color: var(--green); background: transparent; }
.button.light { border-color: #f3e9d6; background: #f3e9d6; color: var(--deep); }
.button.outline-light { border-color: rgba(255,255,255,.65); background: rgba(255,255,255,.05); color: #fff; }

.hero { position: relative; min-height: 750px; display: flex; align-items: center; overflow: hidden; color: #fff; }
.hero-bg, .hero-shade { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-bg { object-fit: cover; object-position: center 47%; transform: scale(1.02); }
.hero-shade { background: linear-gradient(90deg, rgba(11,29,23,.92) 0%, rgba(11,29,23,.72) 46%, rgba(11,29,23,.13) 78%), linear-gradient(0deg, rgba(11,29,23,.55), transparent 45%); }
.hero-copy { position: relative; z-index: 2; width: min(720px, 90%); margin-left: clamp(20px, 8vw, 140px); padding: 80px 0 150px; }
.eyebrow, .section-kicker { margin: 0 0 16px; color: var(--red); font-size: 10px; font-weight: 900; letter-spacing: .22em; text-transform: uppercase; }
.hero .eyebrow { color: #e8c684; }
h1, h2 { margin: 0; font-family: Georgia, "Times New Roman", "Microsoft YaHei", serif; font-weight: 500; line-height: 1.05; letter-spacing: -.042em; }
h1 { font-size: clamp(54px, 7.2vw, 106px); }
h2 { font-size: clamp(38px, 5vw, 68px); }
.hero-text { max-width: 650px; margin: 25px 0 30px; color: #d7e1db; font-size: 17px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 11px; }
.hero-proof { position: absolute; z-index: 3; right: clamp(20px, 5vw, 84px); bottom: 0; display: grid; grid-template-columns: repeat(3, minmax(145px, 1fr)); width: min(620px, calc(100% - 40px)); color: var(--ink); background: var(--cream); }
.hero-proof div { padding: 25px 25px 22px; border-right: 1px solid var(--line); }
.hero-proof div:last-child { border-right: 0; }
.hero-proof strong { display: block; color: var(--red); font-family: Georgia, serif; font-size: 32px; line-height: 1; }
.hero-proof span { display: block; margin-top: 8px; color: var(--muted); font-size: 10px; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }

.trust-strip { display: grid; grid-template-columns: repeat(4, 1fr); padding: 0 clamp(20px, 5vw, 84px); border-bottom: 1px solid var(--line); background: var(--cream); }
.trust-strip > div { display: flex; gap: 14px; padding: 29px 22px; border-right: 1px solid var(--line); }
.trust-strip > div:first-child { border-left: 1px solid var(--line); }
.trust-strip b { color: var(--red); font-family: Georgia, serif; font-size: 20px; }
.trust-strip strong, .trust-strip small { display: block; }
.trust-strip strong { font-size: 12px; }
.trust-strip small { margin-top: 4px; color: var(--muted); font-size: 10px; line-height: 1.45; }

.section-pad { padding: clamp(80px, 9vw, 140px) clamp(20px, 7vw, 120px); }
.section-heading { display: grid; grid-template-columns: 1.35fr .65fr; align-items: end; gap: clamp(30px, 7vw, 110px); margin-bottom: 48px; }
.section-heading > p { max-width: 430px; margin: 0; color: var(--muted); font-size: 14px; }
.category-showcase { background: var(--paper); }
.category-mosaic { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 315px; gap: 12px; }
.category-card { position: relative; min-width: 0; overflow: hidden; background: var(--deep); }
.category-card.category-large { grid-column: span 2; grid-row: span 2; }
.category-card:nth-child(4) { grid-column: span 2; }
.category-card:nth-child(5), .category-card:nth-child(6) { grid-column: span 2; }
.category-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease, opacity .3s ease; }
.category-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(8,25,19,.87), transparent 67%); }
.category-card:hover img { transform: scale(1.04); opacity: .9; }
.catalog-action { display: flex; justify-content: center; margin-top: 35px; }
.card-overlay { position: absolute; z-index: 2; right: 0; bottom: 0; left: 0; padding: 25px; color: #fff; }
.card-overlay span { color: #e7c078; font-size: 8px; font-weight: 900; letter-spacing: .16em; }
.card-overlay h3 { margin: 8px 0; font-family: Georgia, "Microsoft YaHei", serif; font-size: clamp(23px, 2.3vw, 38px); font-weight: 500; line-height: 1.1; }
.card-overlay p { max-width: 480px; margin: 7px 0 15px; color: #d7dfda; font-size: 12px; }
.card-overlay a { color: #fff; font-size: 10px; font-weight: 900; text-underline-offset: 5px; }

.feature-story { display: grid; grid-template-columns: 1fr 1fr; background: #ded5c5; }
.feature-image img { width: 100%; height: 100%; min-height: 720px; object-fit: cover; }
.feature-copy { align-self: center; padding: clamp(60px, 9vw, 140px); }
.feature-copy > p:not(.section-kicker) { margin: 25px 0; color: #59635c; font-size: 15px; }
.feature-points { display: grid; grid-template-columns: 1fr 1fr; margin: 30px 0 35px; border-top: 1px solid #b9af9e; }
.feature-points div { padding: 17px 15px 17px 0; border-bottom: 1px solid #b9af9e; }
.feature-points span { display: block; color: var(--red); font-size: 9px; font-weight: 900; }
.feature-points strong { display: block; margin-top: 4px; font-size: 11px; line-height: 1.45; }

.buyer-solutions { color: #f3f4f1; background: var(--deep); }
.light-heading p { color: #b9c7c0; }
.buyer-solutions .section-kicker { color: #e1b769; }
.buyer-grid { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid rgba(255,255,255,.18); }
.buyer-grid article { padding: 40px; border-right: 1px solid rgba(255,255,255,.18); }
.buyer-grid article:last-child { border-right: 0; }
.buyer-grid b { color: #e1b769; font-family: Georgia, serif; font-size: 24px; }
.buyer-grid h3 { min-height: 62px; margin: 55px 0 14px; font-family: Georgia, "Microsoft YaHei", serif; font-size: 28px; font-weight: 500; line-height: 1.1; }
.buyer-grid p { min-height: 95px; color: #b9c7c0; font-size: 12px; }
.buyer-grid a { color: #fff; font-size: 10px; font-weight: 900; text-underline-offset: 5px; }

.custom { background: var(--cream); }
.process { display: grid; grid-template-columns: repeat(4, 1fr); margin: 55px 0 0; padding: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); list-style: none; }
.process li { min-height: 245px; padding: 28px; border-right: 1px solid var(--line); }
.process li:last-child { border-right: 0; }
.process b { color: var(--red); font-family: Georgia, serif; font-size: 26px; }
.process h3 { margin: 60px 0 8px; font-family: Georgia, "Microsoft YaHei", serif; font-size: 25px; font-weight: 500; line-height: 1.1; }
.process p { margin: 0; color: var(--muted); font-size: 11px; }

.about { display: grid; grid-template-columns: .9fr 1.1fr; color: #eef2ef; background: var(--green); }
.about-copy { align-self: center; padding: clamp(70px, 9vw, 140px); }
.about-copy .section-kicker { color: #e1b769; }
.about-copy > p:not(.section-kicker) { margin: 25px 0 35px; color: #bdcbc4; font-size: 14px; }
.about dl { display: grid; grid-template-columns: repeat(3, 1fr); margin: 0; border-top: 1px solid rgba(255,255,255,.2); }
.about dl div { padding: 20px 12px 0 0; }
.about dt { color: #9eb0a7; font-size: 8px; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.about dd { margin: 5px 0 0; font-family: Georgia, "Microsoft YaHei", serif; font-size: 17px; }
.about-gallery { position: relative; display: grid; grid-template-columns: 1fr 1fr; min-height: 680px; }
.about-gallery img { width: 100%; height: 100%; object-fit: cover; }
.about-gallery img:first-child { margin-top: 80px; height: calc(100% - 80px); }
.about-note { position: absolute; right: 30px; bottom: 30px; width: min(310px, calc(100% - 60px)); padding: 25px; color: var(--ink); background: #f1e7d4; }
.about-note strong, .about-note span { display: block; }
.about-note strong { font-family: Georgia, "Microsoft YaHei", serif; font-size: 22px; line-height: 1.15; }
.about-note span { margin-top: 8px; color: var(--muted); font-size: 10px; }

.faq { display: grid; grid-template-columns: .7fr 1.3fr; gap: clamp(40px, 9vw, 130px); background: var(--paper); }
.faq-list { border-top: 1px solid var(--line); }
details { padding: 22px 0; border-bottom: 1px solid var(--line); }
summary { cursor: pointer; font-size: 13px; font-weight: 900; }
details p { max-width: 720px; margin-bottom: 0; color: var(--muted); font-size: 12px; }

.inquiry { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(50px, 9vw, 130px); color: #fff; background: var(--red); }
.inquiry .section-kicker { color: #f0c77f; }
.inquiry-copy > p:not(.section-kicker) { max-width: 490px; color: #ead7d4; font-size: 13px; }
.contact-list { display: grid; gap: 7px; margin-top: 28px; }
.contact-list a, .contact-list > div { padding: 10px 13px; border-left: 2px solid #f0c77f; background: rgba(255,255,255,.06); color: #fff; font-size: 11px; text-decoration: none; overflow-wrap: anywhere; }
.contact-list span { display: block; color: #f0c77f; font-size: 8px; font-weight: 900; letter-spacing: .14em; text-transform: uppercase; }
form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
label span { display: block; margin-bottom: 5px; font-size: 9px; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; }
input, textarea, select { width: 100%; padding: 13px; border: 1px solid rgba(255,255,255,.4); border-radius: 0; outline: none; color: #fff; background: rgba(255,255,255,.08); }
input:focus, textarea:focus, select:focus { border-color: #f0c77f; }
select option { color: var(--ink); }
.wide { grid-column: 1 / -1; }
form .button { border-color: #f1d7ad; background: #f1d7ad; color: var(--red); }
output { display: none; padding: 15px; border: 1px solid rgba(255,255,255,.4); white-space: pre-wrap; font-size: 11px; }
output.visible { display: block; }
.inquiry-actions { display: none; grid-template-columns: 1fr 1fr; gap: 10px; }
.inquiry-actions.visible { display: grid; }
.inquiry-actions .whatsapp { border-color: #176a45; background: #176a45; color: #fff; }

footer { display: grid; grid-template-columns: 1.2fr .8fr 1fr .8fr; gap: 30px; align-items: start; padding: 42px clamp(20px, 5vw, 84px); color: #cdd7d2; background: #0c2019; font-size: 10px; }
.footer-brand .brand-mark { background: #d0a55f; color: #10281f; }
.footer-brand small { color: #93a69c; }
.footer-brand .brand-logo { width: 132px; height: 132px; }
.footer-links { display: grid; gap: 7px; }
.footer-links a, footer p a { text-decoration: none; }
footer p { margin: 0; }
footer p:last-child { text-align: right; }
.floating-whatsapp { position: fixed; z-index: 30; right: 20px; bottom: 20px; display: grid; place-items: center; width: 50px; height: 50px; border-radius: 50%; color: #fff; background: #176a45; box-shadow: 0 8px 25px rgba(0,0,0,.2); font-size: 11px; font-weight: 900; text-decoration: none; }

.page-hero { display: grid; grid-template-columns: .95fr 1.05fr; gap: clamp(38px, 7vw, 110px); align-items: center; padding: clamp(70px, 9vw, 135px) clamp(20px, 7vw, 120px); background: var(--cream); }
.page-hero-copy h1 { color: var(--green); font-size: clamp(48px, 6.6vw, 92px); }
.page-hero-copy p:not(.eyebrow) { max-width: 660px; color: var(--muted); font-size: 16px; }
.page-hero-media { position: relative; }
.page-hero-media img { width: 100%; aspect-ratio: 1.05; object-fit: cover; }
.page-badge { position: absolute; right: 18px; bottom: 18px; max-width: 280px; padding: 18px; color: #fff; background: var(--red); font-size: 11px; font-weight: 800; }
.breadcrumb { margin-bottom: 22px; color: var(--muted); font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.breadcrumb a { text-decoration: none; }
.content-grid { display: grid; grid-template-columns: .7fr 1.3fr; gap: clamp(36px, 8vw, 120px); padding: clamp(70px, 8vw, 120px) clamp(20px, 7vw, 120px); }
.content-grid.dark { color: #eef2ef; background: var(--deep); }
.content-grid.dark .section-kicker { color: #e1b769; }
.content-grid.dark p, .content-grid.dark li { color: #bdcbc4; }
.content-grid h2 { font-size: clamp(36px, 4.8vw, 62px); }
.copy-block { display: grid; gap: 22px; }
.copy-block p { margin: 0; color: var(--muted); }
.detail-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 0; padding: 0; list-style: none; }
.detail-list li { padding: 18px; border: 1px solid var(--line); background: rgba(255,255,255,.28); font-size: 13px; }
.dark .detail-list li { border-color: rgba(255,255,255,.18); background: rgba(255,255,255,.05); }
.page-cta { display: grid; grid-template-columns: 1fr auto; gap: 25px; align-items: center; padding: clamp(45px, 6vw, 80px) clamp(20px, 7vw, 120px); color: #fff; background: var(--red); }
.page-cta h2 { font-size: clamp(34px, 4vw, 56px); }
.page-cta p { margin: 14px 0 0; color: #ead7d4; }
.related-links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.related-links a { padding: 8px 11px; border: 1px solid var(--line); color: var(--green); font-size: 10px; font-weight: 900; text-decoration: none; }

.catalog-hero { padding: clamp(75px, 9vw, 140px) clamp(20px, 7vw, 120px); color: #fff; background: var(--deep); }
.catalog-hero .eyebrow { color: #e1b769; }
.catalog-hero h1 { max-width: 1000px; font-size: clamp(52px, 7vw, 100px); }
.catalog-hero p:last-child { max-width: 720px; color: #bdcbc4; }
.catalog-section { padding: 35px clamp(20px, 7vw, 120px) clamp(80px, 9vw, 140px); }
.catalog-filter { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 30px; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.catalog-filter span { margin-right: auto; color: var(--muted); font-size: 11px; font-weight: 900; text-transform: uppercase; }
.catalog-filter a { padding: 7px 10px; border: 1px solid var(--line); color: var(--green); font-size: 9px; font-weight: 900; text-decoration: none; }
.catalog-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 15px; }
.catalog-card { min-width: 0; border: 1px solid var(--line); background: var(--cream); }
.catalog-card img { width: 100%; aspect-ratio: 1 / .9; object-fit: contain; background: #fff; transition: transform .25s ease; }
.catalog-card:hover img { transform: scale(1.025); }
.catalog-card > div { padding: 18px; }
.catalog-card span { color: var(--red); font-size: 8px; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.catalog-card h3 { min-height: 48px; margin: 9px 0; font-family: Georgia, "Microsoft YaHei", serif; font-size: 21px; font-weight: 500; line-height: 1.15; }
.catalog-card h3 a { text-decoration: none; }
.catalog-card p { min-height: 68px; margin: 0 0 12px; color: var(--muted); font-size: 10px; }
.catalog-link { color: var(--green); font-size: 9px; font-weight: 900; text-underline-offset: 4px; }
.product-detail { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(38px, 8vw, 120px); align-items: center; padding: clamp(65px, 8vw, 120px) clamp(20px, 7vw, 120px); background: var(--cream); }
.product-detail-media img { width: 100%; max-height: 760px; object-fit: contain; background: #fff; }
.product-detail-copy h1 { color: var(--green); font-size: clamp(46px, 6vw, 86px); }
.product-code { margin: 17px 0; color: var(--red); font-size: 10px; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.product-lead { color: var(--muted); font-size: 15px; }
.product-specs { display: grid; grid-template-columns: 1fr 1fr; margin: 30px 0; border-top: 1px solid var(--line); }
.product-specs div { padding: 15px 12px 15px 0; border-bottom: 1px solid var(--line); }
.product-specs dt { color: var(--muted); font-size: 8px; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; }
.product-specs dd { margin: 4px 0 0; font-size: 11px; font-weight: 800; }
.related-products h2 { margin-bottom: 35px; }
.related-grid { grid-template-columns: repeat(3, 1fr); }
.featured-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.featured-card { display: grid; grid-template-columns: minmax(180px, .8fr) 1fr; min-width: 0; border: 1px solid var(--line); background: var(--cream); }
.featured-card img { width: 100%; height: 100%; min-height: 280px; object-fit: contain; background: #fff; }
.featured-card > div { display: flex; flex-direction: column; align-items: flex-start; padding: 28px; }
.featured-card span, .featured-card small { color: var(--red); font-size: 8px; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.featured-card h2 { margin: 14px 0; font-size: clamp(26px, 3vw, 40px); }
.featured-card h2 a { text-decoration: none; }
.featured-card p { color: var(--muted); font-size: 11px; }
.featured-card .catalog-link { margin-top: auto; padding-top: 18px; }
.seo-section { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 8vw, 120px); background: var(--cream); }
.seo-section h2 { color: var(--green); }
.seo-section p { color: var(--muted); }

@media (max-width: 1080px) {
  nav { display: none; }
  .trust-strip { grid-template-columns: repeat(2, 1fr); }
  .category-mosaic { grid-template-columns: repeat(2, 1fr); }
  .buyer-grid, .process { grid-template-columns: repeat(2, 1fr); }
  .catalog-grid { grid-template-columns: repeat(3, 1fr); }
  .featured-grid { grid-template-columns: 1fr; }
  .buyer-grid article:nth-child(2), .process li:nth-child(2) { border-right: 0; }
  .buyer-grid article:nth-child(-n+2), .process li:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,.18); }
  .process li:nth-child(-n+2) { border-bottom-color: var(--line); }
  footer { grid-template-columns: 1fr 1fr; }
  footer p:last-child { text-align: left; }
}

@media (max-width: 760px) {
  .topbar { display: none; }
  .site-header { padding: 10px 14px; }
  .header-actions .button { display: none; }
  .brand-logo { width: 68px; height: 68px; }
  .brand-mark { width: 36px; height: 36px; font-size: 21px; }
  .hero { min-height: 680px; }
  .hero-shade { background: linear-gradient(90deg, rgba(11,29,23,.9), rgba(11,29,23,.45)); }
  .hero-copy { margin-left: 20px; padding-bottom: 210px; }
  h1 { font-size: 51px; }
  .hero-proof { right: 20px; left: 20px; grid-template-columns: 1fr; width: auto; }
  .hero-proof div { padding: 10px 15px; border-right: 0; border-bottom: 1px solid var(--line); }
  .hero-proof strong { display: inline-block; width: 62px; font-size: 22px; }
  .hero-proof span { display: inline; }
  .trust-strip, .section-heading, .feature-story, .about, .faq, .inquiry { grid-template-columns: 1fr; }
  .page-hero, .content-grid, .page-cta, .seo-section { grid-template-columns: 1fr; }
  .product-detail { grid-template-columns: 1fr; }
  .catalog-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-strip > div { border-left: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .category-mosaic { grid-auto-rows: 300px; }
  .category-card.category-large, .category-card:nth-child(4) { grid-column: span 2; grid-row: span 1; }
  .feature-image img { min-height: 420px; }
  .about-gallery { min-height: 520px; }
}

@media (max-width: 540px) {
  .brand strong { font-size: 13px; }
  .category-mosaic, .buyer-grid, .process, .feature-points, form, footer, .catalog-grid, .related-grid, .product-specs { grid-template-columns: 1fr; }
  .detail-list { grid-template-columns: 1fr; }
  .featured-card { grid-template-columns: 1fr; }
  .category-card { grid-column: auto !important; grid-row: auto !important; }
  .buyer-grid article, .process li { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.18); }
  .process li { border-bottom-color: var(--line); }
  .wide { grid-column: auto; }
  .about dl { grid-template-columns: 1fr; }
  .about-gallery { grid-template-columns: 1fr 1fr; }
}