/* ============ NINGBO WONDEW PLASTICS CO., LTD ============ */
:root {
  --cream: #f5f7fa;
  --sand: #e8eef5;
  --white: #ffffff;
  --brown: #14273e;
  --brown-soft: #46586e;
  --accent: #1e5fa8;
  --accent-dark: #17497f;
  --line: #d9e2ec;
  --shadow: 0 12px 32px rgba(20, 39, 62, 0.10);
  --serif: "Playfair Display", Georgia, "Times New Roman", serif;
  --sans: "Inter", "Helvetica Neue", Arial, "PingFang SC", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--cream);
  color: var(--brown);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container { width: min(1120px, 92%); margin: 0 auto; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
  gap: 16px;
}

.brand { display: flex; flex-direction: column; line-height: 1.25; }
.brand .company {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.brand .tagline {
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
}

.main-nav { display: flex; gap: 28px; align-items: center; }
.main-nav a {
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brown-soft);
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color .2s, border-color .2s;
}
.main-nav a:hover { color: var(--accent-dark); }
.main-nav a.active { color: var(--accent-dark); border-color: var(--accent); }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--brown); margin: 5px 0; }

/* ---------- Hero ---------- */
.hero {
  padding: 96px 0 84px;
  background:
    radial-gradient(1100px 420px at 85% -10%, rgba(30, 95, 168, 0.10), transparent 60%),
    radial-gradient(900px 380px at -10% 110%, rgba(30, 95, 168, 0.08), transparent 60%);
  text-align: center;
}
.hero .eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(30, 95, 168, 0.35);
  border-radius: 999px;
  padding: 8px 20px;
  margin-bottom: 26px;
}
.hero h1 {
  font-family: var(--serif);
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.15;
  max-width: 760px;
  margin: 0 auto 20px;
}
.hero p {
  max-width: 620px;
  margin: 0 auto 34px;
  color: var(--brown-soft);
  font-size: 1.05rem;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 13px 34px;
  border-radius: 999px;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: transform .2s, box-shadow .2s, background .2s;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 8px 20px rgba(30, 95, 168, 0.35);
}
.btn-primary:hover { background: var(--accent-dark); transform: translateY(-2px); }
.btn-ghost {
  border: 1px solid var(--brown);
  color: var(--brown);
}
.btn-ghost:hover { background: var(--brown); color: var(--cream); transform: translateY(-2px); }

/* ---------- Sections ---------- */
.section { padding: 84px 0; }
.section-head { text-align: center; margin-bottom: 52px; }
.section-head .eyebrow {
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent);
}
.section-head h2 {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  margin-top: 12px;
}
.section-head p { color: var(--brown-soft); max-width: 560px; margin: 14px auto 0; }

/* ---------- Category grid (home) ---------- */
.category-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
}
.category-card {
  background: var(--white);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .25s ease, box-shadow .25s ease;
  display: flex;
  flex-direction: column;
}
.category-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 22px 44px rgba(20, 39, 62, 0.16);
}
.category-card .thumb {
  background: linear-gradient(160deg, var(--sand), #f8fafc);
  padding: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 400px;
}
.category-card .thumb svg { height: 130px; width: auto; }
.category-card .thumb img { max-height: 370px; max-width: 100%; width: auto; object-fit: contain; }
.category-card .info { padding: 18px 22px 22px; text-align: center; }
.category-card h3 {
  font-family: var(--serif);
  font-size: 1.18rem;
  margin-bottom: 4px;
}
.category-card p { font-size: 0.74rem; color: var(--brown-soft); margin-bottom: 12px; }
.category-card .view {
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-dark);
  font-weight: 600;
}
.category-card:hover .view { text-decoration: underline; }

/* ---------- Features strip ---------- */
.features {
  background: var(--brown);
  color: var(--cream);
}
.features .container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  padding: 56px 0;
}
.feature .num {
  font-family: var(--serif);
  font-size: 1.9rem;
  color: var(--accent);
  margin-bottom: 8px;
}
.feature h3 { font-size: 1rem; letter-spacing: 0.06em; margin-bottom: 8px; }
.feature p { font-size: 0.88rem; color: rgba(240, 245, 251, 0.75); }

/* ---------- About band ---------- */
.about-band {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: center;
}
.about-band h2 { font-family: var(--serif); font-size: clamp(1.7rem, 3vw, 2.3rem); margin-bottom: 18px; }
.about-band p { color: var(--brown-soft); margin-bottom: 14px; }
.about-visual {
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.about-visual img { width: 100%; height: auto; display: block; }
.about-visual svg { height: 220px; width: auto; }

/* ---------- Page banner (inner pages) ---------- */
.page-banner {
  background: linear-gradient(160deg, var(--sand), #f8fafc);
  padding: 64px 0;
  text-align: center;
}
.page-banner h1 { font-family: var(--serif); font-size: clamp(1.9rem, 4vw, 2.8rem); }
.breadcrumb {
  margin-top: 14px;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--brown-soft);
}
.breadcrumb a:hover { color: var(--accent-dark); }
.page-banner .lead { max-width: 640px; margin: 14px auto 0; color: var(--brown-soft); }

/* ---------- Product grid ---------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.product-card {
  background: var(--white);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .25s ease, box-shadow .25s ease;
  display: flex;
  flex-direction: column;
}
.product-card:hover { transform: translateY(-6px); box-shadow: 0 20px 40px rgba(20, 39, 62, 0.15); }
.product-card .thumb {
  height: 230px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.product-card .main-img {
  max-height: 190px;
  max-width: 100%;
  width: auto;
  object-fit: contain;
  cursor: zoom-in;
}
.thumbs-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.thumbs-row img {
  width: 46px;
  height: 46px;
  object-fit: cover;
  border: 2px solid var(--line);
  border-radius: 8px;
  cursor: pointer;
  background: #fff;
  padding: 2px;
}
.thumbs-row img.sel { border-color: var(--accent); }
.product-card .model {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent-dark);
  margin-bottom: 12px;
}
.product-card .info { padding: 20px 22px 24px; }
.product-card h3 { font-family: var(--serif); font-size: 1.08rem; margin-bottom: 6px; }
.product-card .spec { font-size: 0.83rem; color: var(--brown-soft); margin-bottom: 14px; }
.product-card .quote {
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-dark);
  font-weight: 600;
}
.product-card .quote:hover { text-decoration: underline; }

.bg-t1 { background: linear-gradient(160deg, #e9eff7, #f9fbfd); }
.bg-t2 { background: linear-gradient(160deg, #e3ebf3, #f8fafc); }
.bg-t3 { background: linear-gradient(160deg, #e6edf5, #f9fbfd); }

/* ---------- Catalog download band ---------- */
.catalog-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  background: linear-gradient(160deg, var(--sand), #f8fafc);
  border-radius: 24px;
  padding: 40px 48px;
}
.catalog-band .catalog-info { display: flex; align-items: center; gap: 24px; }
.catalog-band .pdf-icon {
  flex: 0 0 64px;
  height: 64px;
  border-radius: 16px;
  background: var(--brown);
  color: var(--cream);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.06em;
}
.catalog-band h3 { font-family: var(--serif); font-size: 1.4rem; margin-bottom: 4px; }
.catalog-band p { font-size: 0.88rem; color: var(--brown-soft); }

/* ---------- Contact page ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
  margin-bottom: 60px;
}
.contact-card {
  background: var(--white);
  border-radius: 18px;
  padding: 32px;
  box-shadow: var(--shadow);
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.contact-card .icon {
  flex: 0 0 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(160deg, var(--sand), #f8fafc);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}
.contact-card h3 { font-size: 0.8rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent-dark); margin-bottom: 8px; }
.contact-card p { font-size: 1rem; font-weight: 600; }
.contact-card small { display: block; font-size: 0.8rem; color: var(--brown-soft); font-weight: 400; margin-top: 4px; }

.contact-cta {
  background: var(--brown);
  color: var(--cream);
  border-radius: 24px;
  padding: 56px;
  text-align: center;
}
.contact-cta h2 { font-family: var(--serif); font-size: 1.9rem; margin-bottom: 12px; }
.contact-cta p { color: rgba(240, 245, 251, 0.75); max-width: 520px; margin: 0 auto 28px; }
.contact-cta .btn-primary { box-shadow: none; }

/* ---------- Footer ---------- */
.site-footer { background: var(--brown); color: rgba(240, 245, 251, 0.8); margin-top: 84px; }
.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 44px;
  padding: 60px 0 40px;
}
.footer-inner .company {
  font-family: var(--serif);
  font-size: 1.15rem;
  color: var(--cream);
  margin-bottom: 12px;
}
.footer-inner h4 {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.footer-inner ul { list-style: none; }
.footer-inner li { margin-bottom: 10px; font-size: 0.88rem; }
.footer-inner a:hover { color: var(--cream); }
.footer-bottom {
  border-top: 1px solid rgba(240, 245, 251, 0.15);
  padding: 20px 0;
  font-size: 0.78rem;
  text-align: center;
  color: rgba(240, 245, 251, 0.55);
}

/* ---------- New Arrivals carousel (hero) ---------- */
.hero-carousel {
  position: relative;
  max-width: 780px;
  margin: 0 auto 42px;
}
.carousel-label {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--accent-dark);
  margin-bottom: 14px;
}
.carousel-label::before,
.carousel-label::after {
  content: "—";
  margin: 0 10px;
  color: rgba(30, 95, 168, 0.4);
}
.carousel-window { position: relative; }
.carousel-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity .55s ease, visibility .55s ease;
  background: var(--white);
  border-radius: 22px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 26px 32px 30px;
  text-align: center;
}
.carousel-slide.active {
  opacity: 1;
  visibility: visible;
  position: relative;
}
.slide-thumb {
  width: 100%;
  height: 400px;
  background: linear-gradient(160deg, var(--sand), #f8fafc);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  overflow: hidden;
}
.slide-thumb img {
  max-height: 360px;
  max-width: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
}
.slide-info .badge-new {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  padding: 3px 10px;
  border-radius: 999px;
  font-weight: 700;
}
.slide-info h3 {
  font-family: var(--serif);
  font-size: 1.15rem;
  margin: 8px 0 2px;
}
.slide-info p { font-size: 0.78rem; color: var(--brown-soft); margin-bottom: 8px; }
.slide-info a {
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--accent-dark);
}
.slide-info a:hover { text-decoration: underline; }
.carousel-dots {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-top: 18px;
}
.carousel-dots button {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  border: none;
  background: #c2cedd;
  cursor: pointer;
  transition: width .25s, background .25s;
}
.carousel-dots button.active { background: var(--accent); width: 26px; }

/* ---------- Social links (footer) ---------- */
.footer-social {
  grid-column: 1 / -1;
  border-top: 1px solid rgba(240, 245, 251, 0.15);
  padding-top: 26px;
}
.social-links { display: flex; gap: 14px; flex-wrap: wrap; }
.social-links a {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(240, 245, 251, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .2s, transform .2s;
}
.social-links a:hover { background: var(--accent); transform: translateY(-3px); }
.social-links svg { width: 19px; height: 19px; fill: var(--cream); }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .about-band { grid-template-columns: 1fr; }
  .features .container { grid-template-columns: 1fr; gap: 28px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 18px 0 24px;
    border-bottom: 1px solid var(--line);
    gap: 16px;
  }
  .main-nav.open { display: flex; }
  .nav-toggle { display: block; }
  .category-grid, .product-grid, .contact-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .contact-cta { padding: 36px 24px; }
  .slide-thumb { height: 250px; padding: 14px; }
  .slide-thumb img { max-height: 225px; }
}