/* ============================================================
   Vellygood Cable — 外贸独立站样式
   主色: #25D07A (浅绿) / 深海军蓝: #0B1F3A / 白色
   ============================================================ */
:root {
  --green: #25D07A;
  --green-dark: #17a95f;
  --green-light: #e8faf1;
  --navy: #0B1F3A;
  --navy-2: #12294d;
  --navy-3: #1d3a66;
  --text: #1e293b;
  --text-light: #64748b;
  --bg: #ffffff;
  --bg-gray: #f6f8fb;
  --border: #e5e9f0;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(11, 31, 58, 0.08);
  --shadow-lg: 0 20px 50px rgba(11, 31, 58, 0.14);
  --container: 1200px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Segoe UI", "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ---------- 顶部工具栏 ---------- */
.topbar {
  background: var(--navy);
  color: rgba(255, 255, 255, 0.85);
  font-size: 13px;
  padding: 8px 0;
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.topbar a { color: rgba(255, 255, 255, 0.85); }
.topbar a:hover { color: var(--green); }
.topbar .brands span { color: var(--green); font-weight: 600; }

/* ---------- 页眉导航 ---------- */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 74px; gap: 24px; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo img { height: 38px; width: auto; }
.logo .logo-text { font-size: 20px; font-weight: 800; color: var(--navy); letter-spacing: 0.5px; }
.logo .logo-text span { color: var(--green); }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { font-size: 15px; font-weight: 500; color: var(--text); position: relative; padding: 6px 0; }
.nav-links a:hover, .nav-links a.active { color: var(--green-dark); }
.nav-links a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 3px;
  background: var(--green); border-radius: 3px;
}
.nav-cta {
  background: var(--green); color: #06281a !important; font-weight: 700;
  padding: 10px 22px; border-radius: 999px; font-size: 14px;
  transition: background 0.2s;
}
.nav-cta:hover { background: var(--green-dark); color: #fff !important; }
.nav-toggle { display: none; background: none; border: none; font-size: 26px; color: var(--navy); cursor: pointer; }

/* ---------- 首页 Hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-3) 60%, #0e3b66 100%);
  color: #fff;
  padding: 90px 0 110px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; right: -140px; top: -140px; width: 480px; height: 480px;
  border-radius: 50%; background: radial-gradient(circle, rgba(37, 208, 122, 0.35), transparent 70%);
}
.hero::after {
  content: ""; position: absolute; left: -100px; bottom: -180px; width: 420px; height: 420px;
  border-radius: 50%; background: radial-gradient(circle, rgba(37, 208, 122, 0.22), transparent 70%);
}
.hero .container { position: relative; z-index: 2; display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; }
.hero-badge {
  display: inline-block; background: rgba(37, 208, 122, 0.15); border: 1px solid rgba(37, 208, 122, 0.4);
  color: var(--green); font-size: 13px; font-weight: 600; padding: 6px 16px; border-radius: 999px; margin-bottom: 20px;
}
.hero h1 { font-size: 46px; line-height: 1.2; font-weight: 800; margin-bottom: 20px; }
.hero h1 em { font-style: normal; color: var(--green); }
.hero p.lead { font-size: 17px; color: rgba(255, 255, 255, 0.82); max-width: 540px; margin-bottom: 32px; }
.hero-stats { display: flex; gap: 40px; margin-top: 36px; flex-wrap: wrap; }
.hero-stats .stat b { font-size: 30px; color: var(--green); display: block; }
.hero-stats .stat span { font-size: 13px; color: rgba(255, 255, 255, 0.65); }
.hero-media { position: relative; }
.hero-media .main-img { border-radius: var(--radius); box-shadow: var(--shadow-lg); }
.hero-media .float-card {
  position: absolute; background: #fff; color: var(--text); border-radius: 12px;
  padding: 14px 18px; box-shadow: var(--shadow-lg); font-size: 13px; display: flex; align-items: center; gap: 10px;
}
.hero-media .float-card b { color: var(--navy); display: block; font-size: 15px; }
.hero-media .fc-1 { top: -18px; left: -24px; }
.hero-media .fc-2 { bottom: -20px; right: -14px; }
.hero-media .fc-2 i { color: var(--green); font-size: 22px; }

/* ---------- 通用 Section ---------- */
.section { padding: 80px 0; }
.section.gray { background: var(--bg-gray); }
.section.navy { background: var(--navy); color: #fff; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 52px; }
.section-head .kicker {
  display: inline-block; color: var(--green-dark); font-weight: 700; font-size: 13px;
  text-transform: uppercase; letter-spacing: 2px; margin-bottom: 10px;
}
.section-head h2 { font-size: 34px; color: var(--navy); font-weight: 800; margin-bottom: 14px; }
.section.navy .section-head h2 { color: #fff; }
.section-head p { color: var(--text-light); font-size: 16px; }
.section.navy .section-head p { color: rgba(255, 255, 255, 0.7); }

/* ---------- 产品网格 ---------- */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.product-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; transition: transform 0.25s, box-shadow 0.25s; display: flex; flex-direction: column;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.product-card .thumb { aspect-ratio: 1/1; overflow: hidden; background: #f2f5f9; }
.product-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
.product-card:hover .thumb img { transform: scale(1.06); }
.product-card .body { padding: 20px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.product-card .cat { font-size: 12px; color: var(--green-dark); font-weight: 700; text-transform: uppercase; letter-spacing: 1px; }
.product-card h3 { font-size: 17px; color: var(--navy); margin: 6px 0 10px; line-height: 1.4; }
.product-card p { font-size: 13.5px; color: var(--text-light); flex: 1; }
.product-card .more { margin-top: 16px; color: var(--green-dark); font-weight: 600; font-size: 14px; display: inline-flex; align-items: center; gap: 6px; }
.product-card .more:hover { gap: 10px; }

/* ---------- 认证墙 ---------- */
.cert-wall { display: grid; grid-template-columns: repeat(5, 1fr); gap: 22px; }
.cert-item {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px 16px; text-align: center; transition: box-shadow 0.2s;
}
.cert-item:hover { box-shadow: var(--shadow); }
.cert-item .cert-icon { width: 52px; height: 52px; margin: 0 auto 12px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 22px; background: var(--green-light); color: var(--green-dark); }
.cert-item b { color: var(--navy); font-size: 15px; display: block; margin-bottom: 4px; }
.cert-item span { font-size: 12.5px; color: var(--text-light); }

/* ---------- 工厂 / 展会画廊 ---------- */
.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.gallery-grid img { border-radius: 10px; aspect-ratio: 4/3; object-fit: cover; width: 100%; transition: transform 0.3s; }
.gallery-grid a:hover img { transform: scale(1.03); }
.gallery-grid a { overflow: hidden; border-radius: 10px; display: block; }

/* ---------- 特点 ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.feature-item { background: #fff; border-radius: var(--radius); padding: 30px 26px; box-shadow: var(--shadow); }
.feature-item .fi-icon { width: 54px; height: 54px; border-radius: 14px; background: var(--green-light); color: var(--green-dark); display: flex; align-items: center; justify-content: center; font-size: 24px; margin-bottom: 16px; }
.feature-item h3 { font-size: 16px; color: var(--navy); margin-bottom: 8px; }
.feature-item p { font-size: 13.5px; color: var(--text-light); }

/* ---------- CTA 区 ---------- */
.cta-band {
  background: linear-gradient(120deg, var(--green) 0%, #35e08c 100%);
  border-radius: 20px; padding: 56px 48px; display: flex; align-items: center;
  justify-content: space-between; gap: 32px; flex-wrap: wrap;
}
.cta-band h2 { color: #06281a; font-size: 30px; font-weight: 800; margin-bottom: 8px; }
.cta-band p { color: rgba(6, 40, 26, 0.75); font-size: 16px; }
.cta-band .btn-white {
  background: var(--navy); color: #fff; padding: 14px 34px; border-radius: 999px;
  font-weight: 700; font-size: 15px; transition: transform 0.2s, box-shadow 0.2s;
}
.cta-band .btn-white:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--navy); color: rgba(255, 255, 255, 0.75); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; }
.footer-brand img { height: 34px; margin-bottom: 14px; }
.footer-brand p { font-size: 13.5px; line-height: 1.8; }
.footer-brand .brands-row { margin-top: 16px; display: flex; gap: 10px; flex-wrap: wrap; }
.footer-brand .brands-row span {
  border: 1px solid rgba(255, 255, 255, 0.25); border-radius: 999px; padding: 5px 14px;
  font-size: 12.5px; color: #fff;
}
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.footer-col li { margin-bottom: 10px; }
.footer-col a:hover { color: var(--green); }
.footer-col .contact li { display: flex; gap: 10px; align-items: flex-start; font-size: 13.5px; }
.footer-col .contact i { color: var(--green); margin-top: 3px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.12); padding: 18px 0; font-size: 12.5px; text-align: center; color: rgba(255, 255, 255, 0.45); }

/* ---------- 内页横幅 ---------- */
.page-hero { background: linear-gradient(135deg, var(--navy), var(--navy-3)); color: #fff; padding: 64px 0; }
.page-hero h1 { font-size: 36px; font-weight: 800; }
.page-hero .crumbs { font-size: 13px; color: rgba(255, 255, 255, 0.6); margin-top: 8px; }
.page-hero .crumbs a:hover { color: var(--green); }

/* ---------- 产品详情 ---------- */
.prod-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.prod-gallery { position: sticky; top: 96px; }
.prod-gallery .main-img { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); }
.prod-gallery .thumbs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 12px; }
.prod-gallery .thumbs img { border-radius: 8px; border: 1px solid var(--border); aspect-ratio: 1/1; object-fit: cover; cursor: pointer; }
.prod-gallery .thumbs img:hover, .prod-gallery .thumbs img.active { border-color: var(--green); }
.prod-info h1 { font-size: 30px; color: var(--navy); margin-bottom: 10px; }
.prod-info .prod-cat { color: var(--green-dark); font-weight: 700; font-size: 13px; text-transform: uppercase; letter-spacing: 1.5px; }
.prod-info .prod-desc { color: var(--text-light); margin: 16px 0 24px; }
.spec-table { width: 100%; border-collapse: collapse; margin-bottom: 28px; }
.spec-table tr { border-bottom: 1px solid var(--border); }
.spec-table th { text-align: left; padding: 12px 14px; font-size: 13px; color: var(--text-light); font-weight: 600; background: var(--bg-gray); width: 38%; border-radius: 6px 0 0 6px; }
.spec-table td { padding: 12px 14px; font-size: 14px; }
.btn-primary {
  display: inline-block; background: var(--green); color: #06281a; font-weight: 700;
  padding: 14px 34px; border-radius: 999px; font-size: 15px; transition: background 0.2s, transform 0.2s;
}
.btn-primary:hover { background: var(--green-dark); color: #fff; transform: translateY(-2px); }
.btn-ghost {
  display: inline-block; border: 2px solid var(--navy); color: var(--navy); font-weight: 700;
  padding: 12px 30px; border-radius: 999px; font-size: 15px; transition: all 0.2s;
}
.btn-ghost:hover { background: var(--navy); color: #fff; }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.contact-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; display: flex; gap: 18px; align-items: flex-start; }
.contact-card .cc-icon { width: 48px; height: 48px; flex-shrink: 0; border-radius: 12px; background: var(--green-light); color: var(--green-dark); display: flex; align-items: center; justify-content: center; font-size: 20px; }
.contact-card h3 { color: var(--navy); font-size: 16px; margin-bottom: 4px; }
.contact-card p { font-size: 14px; color: var(--text-light); }

/* ---------- 表单 ---------- */
.contact-form { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; }
.contact-form label { font-size: 13px; font-weight: 600; color: var(--navy); display: block; margin-bottom: 6px; }
.contact-form input, .contact-form textarea {
  width: 100%; border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px;
  font-size: 14px; font-family: inherit; margin-bottom: 18px; transition: border 0.2s;
}
.contact-form input:focus, .contact-form textarea:focus { outline: none; border-color: var(--green); }
.contact-form .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ---------- 时间线 ---------- */
.timeline { max-width: 760px; margin: 0 auto; }
.tl-item { display: flex; gap: 20px; position: relative; padding-bottom: 34px; }
.tl-item::before { content: ""; position: absolute; left: 15px; top: 40px; bottom: 0; width: 2px; background: var(--border); }
.tl-item:last-child::before { display: none; }
.tl-dot { width: 32px; height: 32px; border-radius: 50%; background: var(--green-light); color: var(--green-dark); display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 700; flex-shrink: 0; z-index: 1; }
.tl-body h3 { color: var(--navy); font-size: 16px; margin-bottom: 6px; }
.tl-body p { color: var(--text-light); font-size: 14px; }

/* ---------- 响应式 ---------- */
@media (max-width: 992px) {
  .hero .container { grid-template-columns: 1fr; gap: 40px; }
  .hero h1 { font-size: 34px; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .cert-wall { grid-template-columns: repeat(3, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .prod-detail, .contact-grid { grid-template-columns: 1fr; }
  .prod-gallery { position: static; }
  .nav-links {
    display: none; position: absolute; top: 74px; left: 0; right: 0; background: #fff;
    flex-direction: column; padding: 20px 24px; gap: 16px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow);
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
}
@media (max-width: 640px) {
  .product-grid { grid-template-columns: 1fr; }
  .cert-wall { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .section { padding: 56px 0; }
  .section-head h2 { font-size: 26px; }
  .cta-band { padding: 36px 28px; }
  .hero { padding: 60px 0 80px; }
}

/* ---------- Homepage new sections (2026-08 redesign) ---------- */
.trust-bar { background: var(--green-light); border-bottom: 1px solid rgba(37,208,122,.25); }
.trust-list { display: flex; justify-content: space-between; gap: 18px; padding: 18px 0; flex-wrap: wrap; }
.trust-item { display: flex; align-items: center; gap: 10px; font-size: 13.5px; font-weight: 600; color: var(--navy); }
.trust-item i { width: 34px; height: 34px; border-radius: 50%; background: var(--green); color: #06281a; display: flex; align-items: center; justify-content: center; font-size: 15px; font-style: normal; }

.stat-band { background: linear-gradient(120deg, var(--navy), var(--navy-3)); color: #fff; }
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; padding: 44px 0; text-align: center; }
.stat-grid .s-num { font-size: 40px; font-weight: 800; color: var(--green); }
.stat-grid .s-label { font-size: 13.5px; color: rgba(255,255,255,.7); margin-top: 4px; }

.about-split { display: grid; grid-template-columns: 1fr 1fr; gap: 52px; align-items: center; }
.about-split .about-img { border-radius: var(--radius); box-shadow: var(--shadow-lg); }
.about-points { margin-top: 20px; }
.about-points li { display: flex; gap: 12px; padding: 10px 0; border-bottom: 1px dashed var(--border); font-size: 14.5px; }
.about-points li:last-child { border-bottom: none; }
.about-points i { color: var(--green-dark); font-style: normal; font-weight: 700; }

.process-steps { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.process-step { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 22px 16px; text-align: center; position: relative; transition: box-shadow .2s; }
.process-step:hover { box-shadow: var(--shadow); }
.process-step .p-num { width: 40px; height: 40px; line-height: 40px; border-radius: 50%; background: var(--green-light); color: var(--green-dark); font-weight: 800; font-size: 16px; margin: 0 auto 12px; }
.process-step h4 { font-size: 14px; color: var(--navy); margin-bottom: 6px; }
.process-step p { font-size: 12px; color: var(--text-light); }
.process-step::after { content: "→"; position: absolute; right: -12px; top: 50%; transform: translateY(-50%); color: var(--green); font-weight: 800; font-size: 18px; z-index: 2; }
.process-step:last-child::after { display: none; }

.market-list { max-width: 720px; margin: 0 auto; }
.market-item { margin-bottom: 22px; }
.market-item .m-head { display: flex; justify-content: space-between; font-size: 14px; font-weight: 600; color: var(--navy); margin-bottom: 8px; }
.market-item .m-bar { height: 10px; border-radius: 99px; background: #e9eef5; overflow: hidden; }
.market-item .m-bar span { display: block; height: 100%; border-radius: 99px; background: linear-gradient(90deg, var(--green), #4ade90); }

.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.service-item { background: #fff; border-radius: var(--radius); padding: 28px 24px; box-shadow: var(--shadow); text-align: center; }
.service-item .sv-icon { width: 56px; height: 56px; border-radius: 14px; background: var(--green-light); color: var(--green-dark); display: flex; align-items: center; justify-content: center; font-size: 24px; margin: 0 auto 14px; }
.service-item h3 { font-size: 15.5px; color: var(--navy); margin-bottom: 6px; }
.service-item p { font-size: 13px; color: var(--text-light); }

.app-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.app-item { display: flex; gap: 16px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 22px 20px; align-items: flex-start; transition: box-shadow .2s; }
.app-item:hover { box-shadow: var(--shadow); }
.app-item .ap-icon { width: 46px; height: 46px; flex-shrink: 0; border-radius: 12px; background: var(--green-light); color: var(--green-dark); display: flex; align-items: center; justify-content: center; font-size: 20px; }
.app-item h4 { font-size: 15px; color: var(--navy); margin-bottom: 4px; }
.app-item p { font-size: 12.5px; color: var(--text-light); }

.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item { border: 1px solid var(--border); border-radius: 12px; margin-bottom: 12px; overflow: hidden; background: #fff; }
.faq-item summary { padding: 16px 20px; font-weight: 600; font-size: 15px; color: var(--navy); cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 20px; color: var(--green-dark); font-weight: 700; }
.faq-item[open] summary::after { content: "−"; }
.faq-item .faq-body { padding: 0 20px 16px; font-size: 14px; color: var(--text-light); }

.platform-preview { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.platform-mini { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px 22px; display: flex; align-items: center; gap: 16px; transition: transform .2s, box-shadow .2s; }
.platform-mini:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.platform-mini .pm-logo { width: 52px; height: 52px; flex-shrink: 0; border-radius: 50%; color: #fff; font-weight: 800; font-size: 17px; display: flex; align-items: center; justify-content: center; }
.platform-mini h4 { font-size: 15px; color: var(--navy); }
.platform-mini span { font-size: 12px; color: var(--text-light); display: block; margin-top: 2px; word-break: break-all; }

@media (max-width: 992px) {
  .about-split { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: repeat(3, 1fr); }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .app-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .platform-preview { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .service-grid, .app-grid { grid-template-columns: 1fr; }
  .stat-grid .s-num { font-size: 30px; }
}