/*
Theme Name: 胜维 Corporate
Theme URI: https://example.com
Author: In-house Digital Team
Description: Lightweight, original corporate and product catalogue theme. No ecommerce dependencies.
Version: 1.0.0
Text Domain: modern-corporate
*/

:root {
  --brand-primary: #c6ff3a;
  --brand-dark: #121416;
  --text-main: #202326;
  --text-muted: #687078;
  --background-light: #f3f4f1;
  --line: #dfe2dd;
  --white: #fff;
  --max: 1400px;
  --copy: 1240px;
  --radius: 2px;
  --shadow: 0 20px 50px rgba(15, 20, 18, .08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--text-main); background: var(--white); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif; line-height: 1.6; }
body.menu-open { overflow: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
.container { width: min(calc(100% - 48px), var(--max)); margin: 0 auto; }
.copy { width: min(calc(100% - 48px), var(--copy)); margin: 0 auto; }
.eyebrow { margin: 0 0 16px; color: var(--text-muted); font-size: .74rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; }
.section { padding: clamp(72px, 9vw, 144px) 0; }
.section--muted { background: var(--background-light); }
.section-heading { display: flex; justify-content: space-between; gap: 32px; align-items: end; margin-bottom: 48px; }
.section-heading h2 { max-width: 700px; margin: 0; font-size: clamp(2rem, 4vw, 4.2rem); line-height: .98; letter-spacing: -.055em; font-weight: 620; }
.section-heading p { max-width: 360px; margin: 0; color: var(--text-muted); }
.display { margin: 0; font-size: clamp(3.2rem, 8vw, 8.5rem); line-height: .88; letter-spacing: -.08em; font-weight: 620; }
.lede { max-width: 590px; color: var(--text-muted); font-size: clamp(1rem, 1.6vw, 1.25rem); }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; gap: 14px; padding: 12px 18px; border: 1px solid var(--brand-dark); border-radius: var(--radius); background: var(--brand-dark); color: var(--white); font-weight: 700; transition: background .2s ease, color .2s ease, transform .2s ease; }
.button:hover, .button:focus-visible { background: var(--brand-primary); color: var(--brand-dark); transform: translateY(-2px); }
.button--light { background: var(--white); color: var(--brand-dark); border-color: var(--white); }
.button--ghost { background: transparent; color: var(--brand-dark); }
.button--ghost:hover, .button--ghost:focus-visible { background: var(--brand-dark); color: var(--white); }
.button--small { min-height: 42px; padding: 9px 13px; font-size: .88rem; }

.site-header { position: sticky; z-index: 20; top: 0; border-bottom: 1px solid rgba(32,35,38,.1); background: rgba(255,255,255,.94); backdrop-filter: blur(14px); }
.header-inner { min-height: 78px; display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 10px; margin-right: auto; font-weight: 800; letter-spacing: -.03em; }
.brand-mark { width: 26px; height: 26px; position: relative; display: inline-block; overflow: hidden; background: var(--brand-dark); }
.brand-mark::before, .brand-mark::after { content: ""; position: absolute; width: 15px; height: 15px; background: var(--brand-primary); transform: rotate(45deg); }
.brand-mark::before { top: -7px; left: -7px; }
.brand-mark::after { right: -7px; bottom: -7px; }
.brand-name { font-size: 1.08rem; }
.primary-nav ul { display: flex; gap: 25px; padding: 0; margin: 0; list-style: none; }
.primary-nav a { color: #4b5257; font-size: .88rem; font-weight: 600; }
.primary-nav a:hover, .primary-nav a:focus-visible { color: var(--brand-dark); }
.header-actions { display: flex; align-items: center; gap: 16px; margin-left: 20px; }
.header-search { width: 18px; height: 18px; position: relative; border: 1.5px solid var(--brand-dark); border-radius: 50%; }
.header-search::after { content: ""; position: absolute; width: 7px; height: 1.5px; right: -5px; bottom: -2px; transform: rotate(45deg); background: var(--brand-dark); }
.menu-toggle { display: none; border: 0; background: none; padding: 10px; }
.menu-toggle span { display: block; width: 22px; height: 2px; margin: 5px 0; background: var(--brand-dark); }

.hero { min-height: min(860px, 82vh); position: relative; overflow: hidden; display: flex; align-items: flex-end; background: var(--brand-dark); color: var(--white); }
.hero::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 75% 35%, rgba(198,255,58,.25), transparent 24%), linear-gradient(115deg, #121416 0 48%, #202723 48% 60%, #5c6d55 60% 100%); }
.hero::after { content: ""; position: absolute; width: 58vw; height: 58vw; max-width: 780px; max-height: 780px; right: -13vw; top: 7%; border: 1px solid rgba(255,255,255,.25); border-radius: 50%; box-shadow: 0 0 0 35px rgba(198,255,58,.05), 0 0 0 90px rgba(255,255,255,.03); }
.hero-grid { position: relative; z-index: 1; width: min(calc(100% - 48px), var(--max)); margin: 0 auto; padding: clamp(80px, 10vw, 150px) 0 70px; }
.hero-copy { max-width: 750px; }
.hero h1 { margin: 0 0 24px; max-width: 900px; font-size: clamp(3.3rem, 8.8vw, 9rem); line-height: .86; letter-spacing: -.09em; font-weight: 650; }
.hero .lede { color: rgba(255,255,255,.72); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.hero-note { display: flex; gap: 12px; align-items: center; margin-top: 100px; color: rgba(255,255,255,.6); font-size: .78rem; text-transform: uppercase; letter-spacing: .12em; }
.hero-note::before { content: ""; width: 44px; height: 1px; background: var(--brand-primary); }

.category-grid, .product-grid, .application-grid, .news-grid, .testimonial-grid, .cert-grid { display: grid; gap: 18px; }
.category-grid { grid-template-columns: repeat(4, 1fr); }
.product-grid { grid-template-columns: repeat(4, 1fr); }
.application-grid { grid-template-columns: repeat(4, 1fr); }
.news-grid { grid-template-columns: repeat(3, 1fr); }
.testimonial-grid { grid-template-columns: repeat(3, 1fr); }
.cert-grid { grid-template-columns: repeat(4, 1fr); }
.visual-card { aspect-ratio: 1.26; position: relative; overflow: hidden; background: #dfe5dc; }
.visual-card::before { content: ""; position: absolute; width: 58%; height: 76%; left: 20%; top: 12%; background: linear-gradient(135deg, #f7faf3, #9fb79c); transform: rotate(-12deg); box-shadow: 40px 20px 0 rgba(18,20,22,.18); transition: transform .35s ease; }
.visual-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(145deg, transparent 45%, rgba(18,20,22,.16)); }
.card:hover .visual-card::before, .card:focus-within .visual-card::before { transform: rotate(-8deg) scale(1.05); }
.visual-card--dark { background: #252a29; }
.visual-card--dark::before { background: linear-gradient(135deg, #eaf3e5, #758f7e); }
.visual-card--warm { background: #d8d1c2; }
.visual-card--warm::before { background: linear-gradient(135deg, #f5f1e8, #a99975); }
.visual-card--blue { background: #cad3d4; }
.visual-card--blue::before { background: linear-gradient(135deg, #f0f4f4, #789699); }
.card-copy { padding-top: 18px; }
.card-copy h3 { margin: 0 0 7px; font-size: 1.2rem; letter-spacing: -.03em; }
.card-copy p { margin: 0; color: var(--text-muted); font-size: .9rem; }
.card-link { display: inline-flex; gap: 9px; margin-top: 15px; font-size: .82rem; font-weight: 700; }
.card-link::after { content: "↗"; transition: transform .2s ease; }
.card-link:hover::after { transform: translate(3px, -3px); }
.product-card { position: relative; }
.product-card .visual-card { aspect-ratio: 1; }
.product-meta { display: flex; justify-content: space-between; gap: 10px; margin-bottom: 8px; color: var(--text-muted); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(36px, 8vw, 140px); align-items: center; }
.story-visual { min-height: 590px; position: relative; overflow: hidden; background: #d7ded5; }
.story-visual::before { content: ""; position: absolute; inset: 9% 17%; border: 1px solid rgba(18,20,22,.25); transform: rotate(8deg); }
.story-visual::after { content: ""; position: absolute; width: 56%; height: 78%; top: 11%; left: 21%; background: linear-gradient(140deg, #f4f6ef, #768b78); transform: rotate(-12deg); box-shadow: 38px 40px 0 rgba(18,20,22,.19); }
.story-copy h2 { max-width: 550px; margin: 0 0 24px; font-size: clamp(2.4rem, 5vw, 5.8rem); line-height: .92; letter-spacing: -.08em; }
.story-copy .button { margin-top: 24px; }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.stat { min-height: 170px; display: flex; flex-direction: column; justify-content: space-between; padding: 22px 22px 24px 0; border-right: 1px solid var(--line); }
.stat:not(:first-child) { padding-left: 22px; }
.stat:last-child { border-right: 0; }
.stat strong { font-size: clamp(2.4rem, 5vw, 5.2rem); line-height: .9; letter-spacing: -.08em; font-weight: 620; }
.stat span { color: var(--text-muted); font-size: .84rem; }
.timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--brand-dark); }
.milestone { position: relative; min-height: 250px; padding: 28px 22px 22px 0; border-right: 1px solid var(--line); }
.milestone:not(:first-child) { padding-left: 22px; }
.milestone::before { content: ""; position: absolute; top: -5px; left: 0; width: 9px; height: 9px; background: var(--brand-primary); border: 2px solid var(--brand-dark); border-radius: 50%; }
.milestone-year { margin-bottom: 30px; color: var(--text-muted); font-weight: 700; }
.milestone h3 { margin: 0 0 10px; font-size: 1.1rem; }
.milestone p { margin: 0; color: var(--text-muted); font-size: .88rem; }
.cert { min-height: 140px; display: grid; place-items: center; border: 1px solid var(--line); background: #fbfcfa; text-align: center; }
.cert strong { display: block; font-size: 1.3rem; }
.cert span { color: var(--text-muted); font-size: .72rem; }
.testimonial { min-height: 250px; display: flex; flex-direction: column; justify-content: space-between; padding: 24px; border: 1px solid var(--line); background: var(--white); }
.testimonial blockquote { margin: 0; font-size: 1.35rem; line-height: 1.2; letter-spacing: -.04em; }
.testimonial footer { color: var(--text-muted); font-size: .84rem; }
.testimonial footer strong { display: block; color: var(--text-main); }
.news-card { border-top: 1px solid var(--brand-dark); padding-top: 18px; }
.news-card .news-image { aspect-ratio: 1.55; margin-bottom: 18px; background: linear-gradient(135deg, #d6ddd7, #89968a); }
.news-card:nth-child(2) .news-image { background: linear-gradient(135deg, #d9d2c2, #a69b83); }
.news-card:nth-child(3) .news-image { background: linear-gradient(135deg, #ced8da, #7b9495); }
.news-card time { color: var(--text-muted); font-size: .73rem; text-transform: uppercase; letter-spacing: .1em; }
.news-card h3 { margin: 12px 0 8px; font-size: 1.35rem; letter-spacing: -.04em; }
.news-card p { margin: 0; color: var(--text-muted); }
.cta-band { padding: clamp(56px, 8vw, 110px) 0; background: var(--brand-primary); }
.cta-band .cta-inner { display: flex; justify-content: space-between; gap: 32px; align-items: center; }
.cta-band h2 { max-width: 730px; margin: 0; font-size: clamp(2.5rem, 6vw, 6rem); line-height: .9; letter-spacing: -.08em; }

.site-footer { padding: 56px 0 24px; background: var(--brand-dark); color: var(--white); }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(4, 1fr); gap: 32px; padding-bottom: 60px; }
.footer-col h3 { margin: 0 0 16px; color: rgba(255,255,255,.55); font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; }
.footer-col ul { padding: 0; margin: 0; list-style: none; }
.footer-col li { margin-bottom: 8px; color: rgba(255,255,255,.8); font-size: .9rem; }
.footer-col a:hover { color: var(--brand-primary); }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.15); color: rgba(255,255,255,.48); font-size: .75rem; }
.footer-bottom nav { display: flex; gap: 16px; }

.page-hero { padding: clamp(80px, 12vw, 170px) 0 72px; background: var(--background-light); }
.page-hero h1 { max-width: 950px; margin: 0; font-size: clamp(3rem, 7.5vw, 8rem); line-height: .88; letter-spacing: -.09em; }
.archive-intro { max-width: 600px; margin-top: 24px; color: var(--text-muted); font-size: 1.1rem; }
.filter-bar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 44px; }
.filter-bar a { padding: 10px 14px; border: 1px solid var(--line); color: var(--text-muted); font-size: .82rem; }
.filter-bar a.is-active, .filter-bar a:hover { border-color: var(--brand-dark); background: var(--brand-dark); color: var(--white); }
.pagination { display: flex; gap: 8px; margin-top: 54px; }
.pagination .page-numbers { display: grid; width: 42px; height: 42px; place-items: center; border: 1px solid var(--line); font-size: .85rem; }
.pagination .current, .pagination a:hover { background: var(--brand-dark); color: var(--white); }
.article { width: min(calc(100% - 48px), 900px); margin: 0 auto; padding: 90px 0 120px; }
.article h1 { margin: 0 0 24px; font-size: clamp(2.8rem, 6vw, 6.5rem); line-height: .92; letter-spacing: -.08em; }
.article-meta { color: var(--text-muted); font-size: .82rem; }
.article-content { margin-top: 55px; font-size: 1.08rem; }
.article-content h2 { margin-top: 2.4em; font-size: 2.1rem; line-height: 1; letter-spacing: -.05em; }
.article-content p, .article-content ul { max-width: 720px; }
.article-content img { margin: 32px 0; }
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(35px, 8vw, 120px); align-items: start; }
.detail-visual { min-height: 560px; position: sticky; top: 110px; background: linear-gradient(135deg, #dde6dc, #718476); }
.detail-visual::before { content: ""; position: absolute; width: 62%; height: 70%; top: 14%; left: 19%; background: linear-gradient(135deg, #fafbf7, #9cb09b); transform: rotate(-10deg); box-shadow: 48px 30px 0 rgba(18,20,22,.18); }
.detail-copy h1 { margin: 0 0 18px; font-size: clamp(3rem, 5.5vw, 6rem); line-height: .9; letter-spacing: -.08em; }
.detail-copy .lede { margin-bottom: 30px; }
.detail-copy h2 { margin: 48px 0 16px; font-size: 1.2rem; }
.feature-list { padding: 0; margin: 0; list-style: none; border-top: 1px solid var(--line); }
.feature-list li { padding: 14px 0; border-bottom: 1px solid var(--line); }
.spec-table { width: 100%; border-collapse: collapse; }
.spec-table td { padding: 11px 0; border-bottom: 1px solid var(--line); font-size: .9rem; }
.spec-table td:first-child { width: 42%; color: var(--text-muted); }
.application-detail .detail-visual { background: linear-gradient(135deg, #d8d0c2, #9e927c); }
.application-detail .detail-visual::before { background: linear-gradient(135deg, #fbf5e8, #b6a77e); }
.search-form { display: flex; gap: 10px; max-width: 760px; margin-top: 35px; }
.search-form input { min-height: 52px; flex: 1; border: 1px solid var(--line); padding: 12px 15px; }
.empty-state { padding: 60px 0; color: var(--text-muted); }

@media (max-width: 1100px) {
  .primary-nav ul { gap: 15px; }
  .category-grid, .product-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1.5fr repeat(2, 1fr); }
}
@media (max-width: 820px) {
  .container, .copy, .hero-grid, .article { width: min(calc(100% - 36px), var(--max)); }
  .menu-toggle { display: block; }
  .primary-nav { position: fixed; inset: 78px 0 0; display: none; padding: 24px 18px; background: var(--white); }
  .primary-nav.is-open { display: block; }
  .primary-nav ul { display: grid; gap: 0; }
  .primary-nav li { border-bottom: 1px solid var(--line); }
  .primary-nav a { display: block; padding: 16px 0; font-size: 1.1rem; }
  .header-actions { margin-left: 0; }
  .category-grid, .product-grid, .application-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid, .testimonial-grid { grid-template-columns: 1fr; }
  .split, .detail-grid { grid-template-columns: 1fr; }
  .story-visual { min-height: 420px; order: 2; }
  .detail-visual { min-height: 400px; position: static; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: 0; }
  .stat:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .timeline { grid-template-columns: 1fr; border-top: 0; border-left: 1px solid var(--brand-dark); }
  .milestone, .milestone:not(:first-child) { min-height: 0; padding: 20px 0 28px 24px; border-right: 0; border-bottom: 1px solid var(--line); }
  .milestone::before { top: 22px; left: -5px; }
  .milestone-year { margin-bottom: 12px; }
  .cta-band .cta-inner { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 520px) {
  .container, .copy, .hero-grid, .article { width: calc(100% - 28px); }
  .header-inner { min-height: 68px; }
  .primary-nav { inset: 68px 0 0; }
  .hero { min-height: 70vh; }
  .hero h1 { font-size: clamp(3rem, 16vw, 5.4rem); }
  .hero-note { margin-top: 70px; }
  .category-grid, .product-grid, .application-grid, .cert-grid { grid-template-columns: 1fr; }
  .section-heading { display: block; margin-bottom: 28px; }
  .section-heading p { margin-top: 18px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stat { min-height: 140px; padding: 18px 10px 18px 0; }
  .stat:not(:first-child) { padding-left: 10px; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 28px 18px; }
  .footer-grid .footer-col:first-child { grid-column: 1 / -1; }
  .footer-bottom { align-items: flex-start; flex-direction: column; }
  .search-form { flex-direction: column; }
}

/* 胜维 maker / materials storefront layer */
:root {
  --sw-green: #35b66f;
  --sw-green-dark: #13784a;
  --sw-ink: #13231b;
  --sw-cream: #f5f8f2;
  --sw-yellow: #eaff62;
  --sw-border: #dfe9e1;
}
.sw-topbar { background: var(--sw-ink); color: rgba(255,255,255,.78); font-size: 12px; }
.sw-topbar .container { min-height: 34px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.sw-topbar a { color: var(--sw-yellow); }
.sw-topbar-right { display: flex; gap: 10px; align-items: center; }
.sw-topbar-right b { color: rgba(255,255,255,.35); font-weight: 400; }
.site-header { position: sticky; top: 0; background: rgba(255,255,255,.96); border-bottom: 1px solid #edf1ed; }
.header-inner { min-height: 72px; }
.brand { gap: 9px; }
.brand-mark { width: 27px; height: 27px; background: var(--sw-green); border-radius: 7px; transform: rotate(-8deg); }
.brand-mark::before, .brand-mark::after { background: var(--sw-yellow); width: 16px; height: 7px; transform: rotate(-35deg); }
.brand-mark::before { top: 5px; left: -2px; }
.brand-mark::after { right: -2px; bottom: 5px; }
.brand-name { color: var(--sw-ink); font-size: 1.18rem; letter-spacing: -.045em; }
.primary-nav ul { gap: 30px; }
.primary-nav a { color: #31453a; font-size: .86rem; }
.primary-nav a:hover, .primary-nav a:focus-visible { color: var(--sw-green-dark); }
.header-actions { gap: 22px; }
.header-search { border-color: var(--sw-ink); }
.header-search::after { background: var(--sw-ink); }
.sw-header-cta { display: inline-flex; align-items: center; gap: 8px; color: var(--sw-green-dark); font-size: .83rem; font-weight: 700; white-space: nowrap; }
.sw-header-cta span { font-size: 1.2rem; transition: transform .2s ease; }
.sw-header-cta:hover span { transform: translateX(3px); }
.sw-promo-bar { background: var(--sw-yellow); color: var(--sw-ink); font-size: .78rem; font-weight: 700; }
.sw-promo-bar .container { min-height: 38px; display: flex; align-items: center; justify-content: center; gap: 12px; }
.sw-promo-bar a { margin-left: 10px; text-decoration: underline; text-underline-offset: 3px; }
.sw-promo-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--sw-green-dark); }
.sw-home { overflow: hidden; background: #fff; }
.sw-kicker { margin: 0 0 14px; color: var(--sw-green-dark); font-size: .7rem; font-weight: 800; letter-spacing: .17em; text-transform: uppercase; }
.sw-hero { position: relative; background: var(--sw-cream); }
.sw-hero-grid { min-height: 610px; display: grid; grid-template-columns: .92fr 1.08fr; align-items: center; gap: 45px; }
.sw-hero-copy { position: relative; z-index: 2; padding: 68px 0; }
.sw-hero h1 { max-width: 650px; margin: 0; color: var(--sw-ink); font-size: clamp(3.2rem, 6.6vw, 7rem); line-height: .98; letter-spacing: -.085em; font-weight: 780; }
.sw-hero h1 em, .sw-story-copy h2 em, .sw-trust h2 em, .sw-footer-cta h2 em { color: var(--sw-green); font-style: normal; }
.sw-hero-lede { max-width: 530px; margin: 27px 0 0; color: #607067; font-size: 1.05rem; line-height: 1.9; }
.sw-hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.sw-btn { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; gap: 13px; padding: 12px 20px; border: 1px solid transparent; border-radius: 3px; font-size: .86rem; font-weight: 800; transition: .2s ease; }
.sw-btn span { font-size: 1.15rem; transition: transform .2s ease; }
.sw-btn:hover span { transform: translateX(4px); }
.sw-btn--primary { background: var(--sw-green); color: #fff; }
.sw-btn--primary:hover { background: var(--sw-green-dark); color: #fff; transform: translateY(-2px); }
.sw-btn--outline { border-color: #bfd2c3; color: var(--sw-ink); background: transparent; }
.sw-btn--outline:hover { border-color: var(--sw-green); color: var(--sw-green-dark); }
.sw-btn--dark { background: var(--sw-ink); color: #fff; }
.sw-btn--dark:hover { background: var(--sw-green); color: #fff; }
.sw-hero-points { display: flex; gap: 22px; margin-top: 54px; color: #718178; font-size: .75rem; font-weight: 700; }
.sw-hero-points span::before { content: \"✓\"; display: inline-grid; width: 18px; height: 18px; margin-right: 6px; place-items: center; border-radius: 50%; background: #d9f1df; color: var(--sw-green-dark); }
.sw-hero-art { min-height: 580px; position: relative; align-self: stretch; overflow: hidden; background: linear-gradient(140deg, #d9f0df, #a7d9b9); }
.sw-art-glow { position: absolute; width: 65%; aspect-ratio: 1; top: 12%; left: 18%; border-radius: 50%; background: rgba(255,255,255,.48); filter: blur(12px); }
.sw-art-ring { position: absolute; border: 1px solid rgba(19,120,74,.3); border-radius: 50%; transform: rotate(18deg); }
.sw-art-ring--one { width: 86%; height: 45%; left: 7%; top: 37%; }
.sw-art-ring--two { width: 62%; height: 72%; left: 20%; top: 14%; }
.sw-spool { position: relative; width: 170px; height: 170px; border-radius: 50%; background: repeating-conic-gradient(from 12deg, #f2fff4 0 7deg, #c6e9cf 7deg 13deg); box-shadow: inset 0 0 0 10px rgba(255,255,255,.55), 18px 25px 0 rgba(19,120,74,.12), 0 25px 35px rgba(19,120,74,.22); }
.sw-spool::before, .sw-spool::after { content: \"\"; position: absolute; inset: 17%; border-radius: 50%; border: 8px solid rgba(19,120,74,.16); }
.sw-spool::after { inset: 34%; border: 7px solid rgba(19,120,74,.2); background: #fafff8; }
.sw-spool i, .sw-spool b, .sw-spool span { position: absolute; display: block; border-radius: 50%; }
.sw-spool i { width: 28%; height: 28%; left: 36%; top: 36%; border: 6px solid #a8d5b2; background: #f9fff9; z-index: 1; }
.sw-spool b { width: 12%; height: 12%; left: 44%; top: 44%; background: var(--sw-green); z-index: 2; }
.sw-spool span { width: 56%; height: 4px; right: -35%; top: 42%; background: var(--sw-green); transform: rotate(18deg); box-shadow: 35px 12px 0 var(--sw-green); }
.sw-spool--hero { position: absolute; width: min(40vw, 370px); height: min(40vw, 370px); top: 20%; left: 26%; transform: rotate(-13deg); background: repeating-conic-gradient(from 12deg, #fbfff9 0 7deg, #bce5c8 7deg 13deg); }
.sw-spool--hero::before { border-width: 18px; }
.sw-spool--hero::after { border-width: 12px; }
.sw-spool--hero i { border-width: 10px; }
.sw-spool--hero b { background: var(--sw-green-dark); }
.sw-art-label { position: absolute; right: 12%; top: 17%; display: grid; gap: 5px; color: var(--sw-green-dark); transform: rotate(12deg); }
.sw-art-label strong { font-size: 1.2rem; letter-spacing: .14em; }
.sw-art-label small { font-size: .61rem; font-weight: 800; letter-spacing: .16em; }
.sw-art-stripe { position: absolute; width: 200px; height: 18px; right: -45px; bottom: 18%; background: var(--sw-yellow); transform: rotate(-45deg); }
.sw-section { padding: clamp(72px, 9vw, 130px) 0; }
.sw-section--categories { background: #fff; }
.sw-section-head { display: flex; align-items: end; justify-content: space-between; gap: 34px; margin-bottom: 42px; }
.sw-section-head h2 { max-width: 650px; margin: 0; color: var(--sw-ink); font-size: clamp(2.1rem, 4vw, 4.3rem); line-height: 1.04; letter-spacing: -.075em; }
.sw-section-head > p { max-width: 370px; margin: 0; color: #6b7b71; line-height: 1.8; }
.sw-text-link { color: var(--sw-green-dark); font-size: .84rem; font-weight: 800; white-space: nowrap; }
.sw-text-link span { display: inline-block; margin-left: 8px; font-size: 1.2rem; transition: transform .2s ease; }
.sw-text-link:hover span { transform: translateX(4px); }
.sw-category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.sw-category-card { overflow: hidden; border: 1px solid var(--sw-border); background: #fff; transition: transform .25s ease, box-shadow .25s ease; }
.sw-category-card:hover { transform: translateY(-6px); box-shadow: 0 18px 34px rgba(19,120,74,.12); }
.sw-category-art { min-height: 260px; position: relative; overflow: hidden; display: grid; place-items: center; }
.sw-category-card--filament .sw-category-art { background: #e7f6ea; }
.sw-category-card--resin .sw-category-art { background: #eaf0ff; }
.sw-category-card--accessory .sw-category-art { background: #fff4d9; }
.sw-category-art .sw-spool { width: 145px; height: 145px; transform: rotate(-15deg); }
.sw-category-art .sw-spool span { background: var(--sw-green); }
.sw-resin-bottle { width: 108px; height: 165px; position: relative; border-radius: 15px 15px 24px 24px; background: linear-gradient(100deg, #202b42, #53668e 55%, #18233a); box-shadow: 20px 20px 0 rgba(39,64,126,.12); }
.sw-resin-bottle::after { content: \"胜维\"; position: absolute; inset: 48px 12px auto; padding: 12px 0; background: #f8fbff; color: #263b78; text-align: center; font-size: 1.1rem; font-weight: 900; letter-spacing: .1em; }
.sw-resin-bottle i { position: absolute; width: 72px; height: 30px; left: 18px; top: -22px; border-radius: 7px 7px 3px 3px; background: #16213b; }
.sw-resin-bottle b { position: absolute; width: 44px; height: 10px; left: 32px; top: -29px; border-radius: 5px 5px 0 0; background: #3c4c70; }
.sw-resin-drop { position: absolute; width: 22px; height: 30px; right: 25%; bottom: 18%; border-radius: 50% 50% 55% 0; background: #8eb8ff; transform: rotate(-45deg); }
.sw-dryer { width: 170px; height: 115px; position: relative; border: 10px solid #dd9b23; border-radius: 15px; background: #fff9e8; box-shadow: 16px 18px 0 rgba(194,123,7,.14); }
.sw-dryer::before { content: \"干燥\"; position: absolute; right: 13px; top: 15px; color: #d38d13; font-size: 1.3rem; font-weight: 900; }
.sw-dryer i { position: absolute; width: 48px; height: 48px; left: 18px; top: 22px; border: 7px solid #d9a03b; border-radius: 50%; }
.sw-dryer b { position: absolute; left: 34px; top: 38px; width: 16px; height: 16px; border-radius: 50%; background: #d9a03b; }
.sw-category-copy { padding: 24px 24px 26px; }
.sw-category-no { color: var(--sw-green-dark); font-size: .7rem; font-weight: 800; letter-spacing: .15em; }
.sw-category-copy h3 { margin: 11px 0 8px; color: var(--sw-ink); font-size: 1.45rem; letter-spacing: -.04em; }
.sw-category-copy p { min-height: 52px; margin: 0; color: #6b7b71; font-size: .9rem; line-height: 1.7; }
.sw-arrow-link { display: inline-flex; align-items: center; gap: 9px; margin-top: 18px; color: var(--sw-green-dark); font-size: .78rem; font-weight: 800; }
.sw-arrow-link b { font-size: 1.15rem; transition: transform .2s ease; }
.sw-category-card:hover .sw-arrow-link b, .sw-product-card:hover .sw-arrow-link b, .sw-application-card:hover .sw-arrow-link b { transform: translateX(4px); }
.sw-section--products { background: var(--sw-cream); }
.sw-product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.sw-product-card { border: 1px solid var(--sw-border); background: #fff; transition: transform .25s ease, box-shadow .25s ease; }
.sw-product-card:hover { transform: translateY(-5px); box-shadow: 0 17px 32px rgba(19,120,74,.11); }
.sw-product-media { min-height: 245px; position: relative; display: grid; place-items: center; overflow: hidden; }
.sw-product-media--0 { background: #e5f6ea; }
.sw-product-media--1 { background: #edf1ff; }
.sw-product-media--2 { background: #fff3d8; }
.sw-product-media--3 { background: #f3e8f5; }
.sw-product-badge { position: absolute; top: 14px; left: 14px; padding: 4px 8px; background: #fff; color: var(--sw-green-dark); font-size: .64rem; font-weight: 800; }
.sw-product-object { width: 125px; height: 125px; position: relative; border-radius: 50%; background: repeating-conic-gradient(#effff2 0 8deg, #bfe7c8 8deg 15deg); box-shadow: 12px 17px 0 rgba(19,120,74,.12); transform: rotate(-16deg); }
.sw-product-object::before, .sw-product-object::after { content: \"\"; position: absolute; border-radius: 50%; border: 8px solid rgba(19,120,74,.16); }
.sw-product-object::before { inset: 14%; }
.sw-product-object::after { inset: 32%; border-color: rgba(19,120,74,.2); background: #fff; }
.sw-product-object i { position: absolute; inset: 40%; z-index: 2; border-radius: 50%; background: var(--sw-green); }
.sw-product-media--1 .sw-product-object { border-radius: 15px; background: linear-gradient(135deg, #2b3a68, #87a5ef); transform: rotate(5deg); }
.sw-product-media--1 .sw-product-object::before, .sw-product-media--1 .sw-product-object::after { display: none; }
.sw-product-media--1 .sw-product-object::after { content: \"树脂\"; display: grid; inset: 25px 12px auto; height: 32px; border: 0; border-radius: 0; color: #263b78; background: #fff; font-size: .65rem; font-weight: 900; place-items: center; }
.sw-product-media--1 .sw-product-object i { display: none; }
.sw-product-media--2 .sw-product-object { width: 170px; height: 105px; border-radius: 14px; background: #fff4d7; border: 9px solid #dda02b; transform: rotate(-4deg); }
.sw-product-media--2 .sw-product-object::before { inset: 22px auto auto 20px; width: 40px; height: 40px; border: 6px solid #dda02b; }
.sw-product-media--2 .sw-product-object::after { display: none; }
.sw-product-media--3 .sw-product-object { background: repeating-conic-gradient(#f8eeff 0 8deg, #d7a9e2 8deg 15deg); }
.sw-product-body { padding: 18px 18px 22px; }
.sw-product-category { color: var(--sw-green-dark); font-size: .65rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.sw-product-body h3 { min-height: 45px; margin: 8px 0 7px; color: var(--sw-ink); font-size: 1.12rem; line-height: 1.2; letter-spacing: -.035em; }
.sw-product-body p { min-height: 44px; margin: 0; color: #718178; font-size: .8rem; line-height: 1.6; }
.sw-story { background: var(--sw-ink); color: #fff; }
.sw-story-grid { min-height: 580px; display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: clamp(50px, 9vw, 150px); }
.sw-story-art { min-height: 470px; position: relative; overflow: hidden; background: linear-gradient(145deg, #1d4935, #0d1913); }
.sw-story-orbit { position: absolute; width: 90%; height: 45%; top: 29%; left: 5%; border: 1px solid rgba(234,255,98,.36); border-radius: 50%; transform: rotate(-22deg); }
.sw-story-spool { position: absolute; width: 260px; height: 260px; top: 19%; left: 25%; border-radius: 50%; background: repeating-conic-gradient(#eafff0 0 8deg, #63c98a 8deg 15deg); transform: rotate(-20deg); box-shadow: 28px 32px 0 rgba(234,255,98,.13); }
.sw-story-spool::before, .sw-story-spool::after { content: \"\"; position: absolute; inset: 15%; border: 15px solid rgba(19,120,74,.34); border-radius: 50%; }
.sw-story-spool::after { inset: 36%; border-width: 9px; background: #173b29; }
.sw-story-spool i { position: absolute; inset: 44%; border-radius: 50%; background: var(--sw-yellow); }
.sw-story-art small { position: absolute; bottom: 25px; left: 28px; color: rgba(255,255,255,.62); font-size: .65rem; font-weight: 800; letter-spacing: .2em; line-height: 1.7; }
.sw-story-copy .sw-kicker { color: var(--sw-yellow); }
.sw-story-copy h2 { margin: 0 0 24px; color: #fff; font-size: clamp(2.5rem, 5vw, 5.4rem); line-height: 1.02; letter-spacing: -.08em; }
.sw-story-copy p { max-width: 520px; color: rgba(255,255,255,.68); line-height: 1.9; }
.sw-story-copy .sw-btn { margin-top: 18px; }
.sw-application-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.sw-application-card { display: flex; min-height: 360px; flex-direction: column; justify-content: space-between; padding: 0 20px 23px; border: 1px solid var(--sw-border); background: #fff; transition: transform .25s ease, box-shadow .25s ease; }
.sw-application-card:hover { transform: translateY(-5px); box-shadow: 0 16px 32px rgba(19,120,74,.1); }
.sw-application-art { height: 190px; position: relative; margin: 0 -20px 20px; overflow: hidden; background: #e4f4e9; }
.sw-application-art::before { content: \"\"; position: absolute; width: 160px; height: 110px; left: 20%; top: 26%; border: 12px solid rgba(19,120,74,.55); border-radius: 50%; transform: rotate(35deg); }
.sw-application-art::after { content: \"\"; position: absolute; width: 70px; height: 70px; right: 18%; top: 22%; background: var(--sw-yellow); transform: rotate(18deg); }
.sw-application-card--1 .sw-application-art { background: #edf0ff; }
.sw-application-card--1 .sw-application-art::before { border-color: #718de2; border-radius: 12px; transform: rotate(-12deg); }
.sw-application-card--1 .sw-application-art::after { background: #a7b9ff; border-radius: 50%; }
.sw-application-card--2 .sw-application-art { background: #fff3d7; }
.sw-application-card--2 .sw-application-art::before { border-color: #d59a2c; border-radius: 10px; }
.sw-application-card--2 .sw-application-art::after { background: #f7c86a; }
.sw-application-card--3 .sw-application-art { background: #f6eafb; }
.sw-application-card--3 .sw-application-art::before { border-color: #ae72bb; }
.sw-application-card--3 .sw-application-art::after { background: #e0a9e9; border-radius: 50%; }
.sw-application-art span { position: absolute; z-index: 1; right: 16px; top: 14px; color: rgba(19,35,27,.6); font-size: .68rem; font-weight: 800; letter-spacing: .13em; }
.sw-application-card h3 { margin: 0 0 8px; color: var(--sw-ink); font-size: 1.15rem; }
.sw-application-card p { min-height: 48px; margin: 0; color: #718178; font-size: .8rem; }
.sw-trust { padding: 100px 0; background: var(--sw-yellow); }
.sw-trust-head { display: flex; justify-content: space-between; align-items: end; gap: 40px; }
.sw-trust h2 { margin: 0; color: var(--sw-ink); font-size: clamp(2.7rem, 5.5vw, 5.8rem); line-height: .98; letter-spacing: -.08em; }
.sw-trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 70px; border-top: 1px solid rgba(19,35,27,.22); }
.sw-trust-grid > div { min-height: 190px; padding: 24px 28px 20px 0; border-right: 1px solid rgba(19,35,27,.22); }
.sw-trust-grid > div:not(:first-child) { padding-left: 28px; }
.sw-trust-grid > div:last-child { border-right: 0; }
.sw-trust-grid strong { color: var(--sw-green-dark); font-size: .72rem; letter-spacing: .15em; }
.sw-trust-grid h3 { margin: 28px 0 8px; color: var(--sw-ink); font-size: 1.25rem; }
.sw-trust-grid p { margin: 0; color: #4d6757; font-size: .86rem; line-height: 1.7; }
.sw-section--news { background: #fff; }
.sw-news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.sw-news-card { border: 1px solid var(--sw-border); background: #fff; }
.sw-news-card a { display: block; padding-bottom: 20px; }
.sw-news-art { min-height: 220px; display: flex; align-items: end; padding: 18px; background: linear-gradient(135deg, #e3f5e8, #83c89b); }
.sw-news-art--1 { background: linear-gradient(135deg, #edf0ff, #8ba1e6); }
.sw-news-art--2 { background: linear-gradient(135deg, #fff4d9, #dfa33b); }
.sw-news-art span { color: rgba(19,35,27,.56); font-size: .66rem; font-weight: 900; letter-spacing: .16em; line-height: 1.5; }
.sw-news-card time, .sw-news-card h3, .sw-news-card p { display: block; margin-left: 20px; margin-right: 20px; }
.sw-news-card time { margin-top: 19px; color: #718178; font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; }
.sw-news-card h3 { margin-top: 10px; margin-bottom: 8px; color: var(--sw-ink); font-size: 1.2rem; line-height: 1.25; }
.sw-news-card p { margin-bottom: 0; color: #718178; font-size: .85rem; }
.sw-footer-cta { padding: 90px 0; background: var(--sw-cream); }
.sw-footer-cta .container { display: flex; align-items: end; justify-content: space-between; gap: 30px; }
.sw-footer-cta h2 { margin: 0; color: var(--sw-ink); font-size: clamp(2.7rem, 6vw, 6rem); line-height: .97; letter-spacing: -.08em; }
.site-footer { padding: 64px 0 24px; background: var(--sw-ink); }
.sw-footer-grid { display: grid; grid-template-columns: 1.5fr repeat(4, 1fr); gap: 30px; padding-bottom: 55px; }
.sw-footer-brand p { max-width: 260px; margin-top: 22px; color: rgba(255,255,255,.6); font-size: .85rem; line-height: 1.8; }
.site-footer .brand-name { color: #fff; }
.site-footer .footer-col h3 { color: var(--sw-yellow); }
.site-footer .footer-col li { color: rgba(255,255,255,.68); font-size: .84rem; }
.site-footer .footer-col a:hover { color: var(--sw-yellow); }
.site-footer .footer-bottom { border-color: rgba(255,255,255,.15); }

@media (max-width: 1050px) {
  .primary-nav ul { gap: 17px; }
  .sw-hero-grid { grid-template-columns: 1fr 1fr; }
  .sw-product-grid { grid-template-columns: repeat(3, 1fr); }
  .sw-application-grid { grid-template-columns: repeat(2, 1fr); }
  .sw-footer-grid { grid-template-columns: 1.4fr repeat(2, 1fr); }
}
@media (max-width: 820px) {
  .sw-topbar-right { display: none; }
  .sw-hero-grid, .sw-story-grid { grid-template-columns: 1fr; }
  .sw-hero-copy { padding: 72px 0 35px; }
  .sw-hero-art { min-height: 440px; }
  .sw-spool--hero { width: 300px; height: 300px; left: calc(50% - 150px); top: 18%; }
  .sw-category-grid { grid-template-columns: 1fr; }
  .sw-category-art { min-height: 230px; }
  .sw-story-grid { padding-top: 72px; padding-bottom: 72px; }
  .sw-story-art { min-height: 380px; }
  .sw-story-spool { width: 210px; height: 210px; left: calc(50% - 105px); }
  .sw-trust-head { display: block; }
  .sw-trust-grid { grid-template-columns: 1fr; }
  .sw-trust-grid > div, .sw-trust-grid > div:not(:first-child) { min-height: 0; padding: 22px 0; border-right: 0; border-bottom: 1px solid rgba(19,35,27,.22); }
  .sw-trust-grid > div:last-child { border-bottom: 0; }
  .sw-footer-cta .container { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 600px) {
  .sw-promo-bar .container { justify-content: flex-start; font-size: .68rem; }
  .sw-promo-bar a { margin-left: auto; }
  .sw-hero h1 { font-size: clamp(3.1rem, 15vw, 5.5rem); }
  .sw-hero-points { flex-wrap: wrap; gap: 10px 16px; margin-top: 38px; }
  .sw-section-head { display: block; }
  .sw-section-head > p, .sw-text-link { display: inline-block; margin-top: 18px; }
  .sw-product-grid, .sw-application-grid, .sw-news-grid { grid-template-columns: 1fr 1fr; }
  .sw-product-media { min-height: 180px; }
  .sw-product-object { width: 92px; height: 92px; }
  .sw-product-body { padding: 14px 12px 17px; }
  .sw-product-body h3 { min-height: 0; font-size: .95rem; }
  .sw-product-body p { min-height: 0; font-size: .74rem; }
  .sw-application-card { min-height: 310px; padding: 0 14px 17px; }
  .sw-application-art { height: 150px; margin-left: -14px; margin-right: -14px; }
  .sw-application-card p { min-height: 0; }
  .sw-footer-grid { grid-template-columns: 1fr 1fr; gap: 28px 18px; }
  .sw-footer-brand { grid-column: 1 / -1; }
}

/* Mobile storefront refinements */
@media (max-width: 820px) {
  body.menu-open { overflow: hidden; }
  .site-header { z-index: 40; }
  .primary-nav {
    position: absolute;
    top: 100%;
    right: 0;
    bottom: auto;
    left: 0;
    z-index: 25;
    display: block;
    max-height: none;
    overflow: visible;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    pointer-events: none;
    transition: opacity .22s ease, transform .22s ease, visibility 0s linear .22s;
    box-shadow: 0 18px 35px rgba(19,35,27,.12);
  }
  .primary-nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
    transition-delay: 0s;
  }
  .primary-nav li {
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity .2s ease, transform .2s ease;
  }
  .primary-nav.is-open li {
    opacity: 1;
    transform: translateY(0);
  }
  .primary-nav.is-open li:nth-child(1) { transition-delay: .04s; }
  .primary-nav.is-open li:nth-child(2) { transition-delay: .08s; }
  .primary-nav.is-open li:nth-child(3) { transition-delay: .12s; }
  .primary-nav.is-open li:nth-child(4) { transition-delay: .16s; }
  .primary-nav.is-open li:nth-child(5) { transition-delay: .20s; }
  @media (prefers-reduced-motion: reduce) {
    .primary-nav, .primary-nav li, .menu-toggle span { transition: none !important; }
  }
  .header-search { display: block; width: 24px; height: 24px; }
  .menu-toggle { position: relative; width: 42px; height: 46px; padding: 10px; }
  .menu-toggle span { transition: transform .2s ease, opacity .2s ease; }
  .menu-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-toggle.is-open span:nth-child(2) { opacity: 0; }
  .menu-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

@media (max-width: 600px) {
  .sw-product-grid,
  .sw-application-grid,
  .sw-news-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sw-product-card,
  .sw-product-media,
  .sw-product-body,
  .sw-product-body h3,
  .sw-product-body p,
  .sw-application-card,
  .sw-news-card { min-width: 0; }
  .sw-product-category { display: block; overflow-wrap: anywhere; letter-spacing: .04em; }
  .sw-product-body h3,
  .sw-product-body p { overflow-wrap: anywhere; }
  .sw-product-media--2 .sw-product-object { width: 110px; height: 76px; border-width: 7px; }
}

@media (max-width: 360px) {
  .sw-product-grid,
  .sw-news-grid { grid-template-columns: 1fr; }
  .sw-product-media { min-height: 200px; }
  .sw-product-media--2 .sw-product-object { width: 150px; height: 92px; }
}