/*
 Theme Name: 中东矿产贸易（深色版）
 Theme URI: https://example.com
 Description: 中东矿产（磷矿 / 碳酸钙 / 铁黄）跨境供应中国的中文企业站主题·深色专业商务风（可切换对照版），响应式，无支付功能，主打获客登记。
 Version: 1.1.1-dark
 Author: WorkBuddy
 Requires at least: 5.8
 Tested up to: 6.6
 Tags: dark, business, chinese, responsive, custom-colors
 Text Domain: mem-cn
*/

:root {
  /* 背景层 */
  --bg-900: #080b10;
  --bg-800: #0c1119;
  --bg-700: #0f1622;
  --bg-600: #141d2b;
  --surface: #121a26;
  --surface-2: #182233;
  --border: #1f2c3d;
  --border-soft: #16202e;

  /* 文字 */
  --text: #e9eef5;
  --text-soft: #aab7c6;
  --text-mut: #6f7f92;

  /* 强调色 —— 矿石琥珀金 + 贸易青 */
  --gold: #e0a94e;
  --gold-soft: #f1c878;
  --teal: #2bb3a3;
  --teal-soft: #56d3c4;
  --up: #34c08a;
  --down: #e0584f;

  /* 间距 / 圆角 / 阴影 */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 22px;
  --shadow: 0 18px 50px -22px rgba(0,0,0,.75);
  --shadow-glow: 0 0 0 1px rgba(224,169,78,.18), 0 20px 60px -28px rgba(224,169,78,.35);
  --maxw: 1180px;
  --nav-h: 68px;

  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Hiragino Sans GB", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

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

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 16px); }

body {
  font-family: var(--font);
  background: var(--bg-900);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* 背景纹理：细微的地质分层光感 */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: -1;
  background:
    radial-gradient(900px 500px at 78% -8%, rgba(224,169,78,.10), transparent 60%),
    radial-gradient(800px 520px at 10% 6%, rgba(43,179,163,.08), transparent 60%),
    linear-gradient(180deg, var(--bg-900), var(--bg-800));
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ---------- 布局容器 ---------- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
.section { padding: 84px 0; }
.section--tight { padding: 56px 0; }

/* 首页模块上下间距收紧（仅首页，不动产品/板块等内页） */
@media (min-width: 961px) {
  body.home .section { padding: 40px 0; }
  body.home .section--tight { padding: 32px 0; }
  body.home .hero { padding-bottom: 40px; }
  body.home .section-head { margin-bottom: 32px; }
}

/* ---------- 文字 ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--gold); font-weight: 600;
}
.eyebrow::before { content: ""; width: 26px; height: 1px; background: var(--gold); opacity: .7; }

h1, h2, h3, h4 { line-height: 1.25; font-weight: 700; letter-spacing: -.01em; }
h1 { font-size: clamp(30px, 5vw, 50px); }
h2 { font-size: clamp(26px, 3.4vw, 38px); }
h3 { font-size: 21px; }
.lead { color: var(--text-soft); font-size: 17px; max-width: 60ch; }
.about-company { margin-top: 12px; color: var(--text); font-size: 20px; font-weight: 600; }
/* 关于我们主标题：电脑端字号收小（桌面上限 50px → 38px），移动端保持 30px */
.hero__grid h1.about-title { font-size: clamp(30px, 3.4vw, 38px); line-height: 1.2; }
.muted { color: var(--text-mut); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 13px 26px; border-radius: 999px; font-weight: 600; font-size: 15px;
  border: 1px solid transparent; cursor: pointer; transition: .22s ease; white-space: nowrap;
}
.btn--primary {
  background: linear-gradient(135deg, var(--gold), var(--gold-soft));
  color: #1a1206; box-shadow: 0 14px 34px -16px rgba(224,169,78,.7);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 20px 44px -16px rgba(224,169,78,.85); }
.btn--ghost { border-color: var(--border); color: var(--text); background: rgba(255,255,255,.02); }
.btn--ghost:hover { border-color: var(--gold); color: var(--gold-soft); }
.btn--teal { background: linear-gradient(135deg, var(--teal), var(--teal-soft)); color: #04201c; }
.btn--teal:hover { transform: translateY(-2px); }

/* ---------- 导航 ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; height: var(--nav-h); z-index: 50;
  display: flex; align-items: center;
  background: rgba(10,14,20,.72); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-soft);
}
.nav__inner { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 22px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 11px; font-weight: 700; font-size: 17px; letter-spacing: .02em; }
.brand small { display: block; font-size: 11px; color: var(--text-mut); font-weight: 500; letter-spacing: .12em; }
.nav__links { display: flex; align-items: center; gap: 30px; }
.nav__links a { color: var(--text-soft); font-size: 15px; font-weight: 500; transition: .2s; position: relative; }
.nav__links a:hover, .nav__links a.is-active { color: var(--text); }
.nav__links > a.is-active::after { content: ""; position: absolute; left: 0; right: 0; bottom: -8px; height: 2px; background: var(--gold); border-radius: 2px; }
.nav__cta { display: flex; align-items: center; gap: 14px; }
/* 导航右上角「免费寄样 / 免费询价」按钮：统一压扁上下高度（桌面端） */
.nav__cta .btn { padding: 7px 20px; font-size: 14px; }
.nav__toggle { display: none; background: none; border: 1px solid var(--border); width: 42px; height: 42px; border-radius: 10px; cursor: pointer; }
.nav__toggle span { display: block; width: 18px; height: 2px; background: var(--text); margin: 3px auto; transition: .25s; }

/* 移动端菜单 */
.nav__links.is-open {
  display: flex; flex-direction: column; gap: 4px;
  position: absolute; top: var(--nav-h); left: 0; right: 0;
  background: var(--bg-800); border-bottom: 1px solid var(--border); padding: 14px 22px 22px;
}
.nav__links.is-open a { padding: 12px 4px; border-bottom: 1px solid var(--border-soft); }

/* ---------- 页脚 ---------- */
.footer { background: var(--bg-800); border-top: 1px solid var(--border-soft); padding: 56px 0 30px; }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr; gap: 36px; }
.footer h4 { font-size: 14px; letter-spacing: .1em; text-transform: uppercase; color: var(--text-soft); margin-bottom: 16px; }
.footer a { color: var(--text-mut); font-size: 14.5px; display: block; padding: 6px 0; transition: .2s; }
.footer a:hover { color: var(--gold-soft); }
.footer__bottom { margin-top: 40px; padding-top: 22px; border-top: 1px solid var(--border-soft); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; color: var(--text-mut); font-size: 13.5px; }
.footer__about p { color: var(--text-soft); font-size: 14.5px; margin-top: 14px; max-width: 34ch; }

/* ---------- 通用卡片 ---------- */
.card {
  background: linear-gradient(180deg, var(--surface), var(--bg-700));
  border: 1px solid var(--border); border-radius: var(--r-md);
  padding: 26px; transition: .25s ease;
}
.card:hover { border-color: rgba(224,169,78,.45); transform: translateY(-3px); box-shadow: var(--shadow); }
.card__icon { width: 50px; height: 50px; border-radius: 12px; display: grid; place-items: center; background: rgba(224,169,78,.12); color: var(--gold); margin-bottom: 16px; }

.grid { display: grid; gap: 22px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
/* 产品网格：桌面 3 列，平板/手机直接单列（避免窄屏 2 列拥挤） */
.grid--prod { grid-template-columns: repeat(3, 1fr); }

/* 区块头 */
.section-head { max-width: 64ch; margin-bottom: 44px; }
.section-head .lead { margin-top: 14px; }

/* 标签 / 徽章 */
.tag { display: inline-block; font-size: 12.5px; padding: 4px 11px; border-radius: 999px; background: rgba(43,179,163,.12); color: var(--teal-soft); border: 1px solid rgba(43,179,163,.25); font-weight: 600; }
.tag--gold { background: rgba(224,169,78,.12); color: var(--gold-soft); border-color: rgba(224,169,78,.25); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: calc(var(--nav-h) + 30px) 0 20px;
  overflow: hidden;
  color: #fff;
  background: linear-gradient(135deg, rgba(8,11,16,.86) 0%, rgba(8,11,16,.74) 55%, rgba(8,11,16,.68) 130%), url('assets/img/jordan-phosphate-mine-08.jpg') 70% 55%/cover no-repeat;
}
.hero__grid { display: grid; grid-template-columns: 1fr; gap: 0; align-items: center; }
.hero h1 { margin: 14px 0 18px; }
.hero h1 em { color: var(--gold); font-style: normal; }
.hero .lead { color: rgba(255,255,255,.86); }
.hero__cta { display: flex; gap: 14px; margin-top: 26px; flex-wrap: wrap; }
.hero__stats { display: flex; gap: 30px; margin-top: 30px; flex-wrap: wrap; }
.hero__stat b { font-size: 28px; color: #fff; display: block; }
.hero__stat span { font-size: 13px; color: rgba(255,255,255,.72); }
.hero__trust { list-style: none; display: flex; flex-wrap: wrap; gap: 22px; margin-top: 26px; justify-content: center; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); border-radius: var(--r-sm); padding: 18px 22px; }
.hero__trust li { display: inline-flex; align-items: center; gap: 10px; font-size: 17px; font-weight: 600; color: #fff; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14); border-radius: 999px; padding: 11px 22px; }
.hero__trust li .num { color: var(--teal-soft); font-weight: 700; letter-spacing: .5px; font-variant-numeric: tabular-nums; }
.hero__visual { display: none; }
.hero .btn--ghost { border-color: rgba(255,255,255,.35); color: #fff; background: rgba(255,255,255,.05); }
.hero .btn--ghost:hover { border-color: var(--gold); color: var(--gold-soft); background: rgba(255,255,255,.10); }
/* Hero 副标题下方两个 CTA：略缩小（上下内边距与字号），与副标题比例更协调 */
.hero__cta .btn { padding: 10px 22px; font-size: 14px; }

/* 主视觉容器 */
.visual-frame {
  border: 1px solid var(--border); border-radius: var(--r-lg);
  background: radial-gradient(120% 120% at 70% 10%, rgba(224,169,78,.10), transparent 60%), var(--surface);
  padding: 18px; box-shadow: var(--shadow);
}
.visual-frame svg { width: 100%; height: auto; border-radius: var(--r-md); }
.visual-frame img { width: 100%; height: auto; border-radius: var(--r-md); }

/* 产区直采图文块 */
.origin { align-items: center; gap: 40px; }
.origin__text .checks { list-style: none; margin: 20px 0 26px; padding: 0; display: grid; gap: 12px; }
.origin__text .checks li { position: relative; padding-left: 28px; color: var(--text-soft); font-size: 15px; }
.origin__text .checks li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--gold); font-weight: 700; }
.origin__media { align-self: center; }
.origin__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }

/* 产区实景轮播（堆叠淡入：所有 slide 贴在轮播框内，靠 opacity 切换，
   不存在「移出视口」导致 Safari 不加载图片的问题；无 JS 时纵向排列可见首图） */
.carousel { position: relative; border-radius: var(--r-md); overflow: hidden; background: #0f172a; aspect-ratio: 16 / 9; }
.carousel__track { position: absolute; inset: 0; }
.carousel__slide { position: relative; }
.carousel__slide img { width: 100%; height: auto; display: block; }
/* 有 JS 时：slide 绝对叠放，仅当前张 opacity:1，切换即淡入 */
.carousel.is-active .carousel__slide { position: absolute; inset: 0; opacity: 0; transition: opacity .5s ease; }
.carousel.is-active .carousel__slide.is-active { opacity: 1; }
.carousel.is-active .carousel__slide img { width: 100%; height: 100%; object-fit: cover; display: block; }
.carousel__cap { position: absolute; left: 0; right: 0; bottom: 0; padding: 28px 16px 14px; background: linear-gradient(transparent, rgba(15,23,42,.82)); color: #fff; font-size: 14px; line-height: 1.4; pointer-events: none; }
.carousel__btn { position: absolute; top: 50%; transform: translateY(-50%); width: 40px; height: 40px; border: 0; border-radius: 50%; background: rgba(15,23,42,.55); color: #fff; font-size: 22px; line-height: 1; cursor: pointer; display: grid; place-items: center; transition: background .2s, color .2s; }
.carousel__btn:hover, .carousel__btn:focus-visible { background: var(--gold); color: #0f172a; }
.carousel__btn--prev { left: 12px; }
.carousel__btn--next { right: 12px; }
.carousel__dots { position: absolute; top: 12px; right: 12px; display: flex; gap: 8px; }
.carousel__dot { width: 10px; height: 10px; padding: 0; border: 0; border-radius: 50%; background: rgba(255,255,255,.5); cursor: pointer; transition: background .2s, transform .2s; }
.carousel__dot.is-active { background: var(--gold); transform: scale(1.2); }
.carousel__dot:hover, .carousel__dot:focus-visible { background: #fff; }
/* 质检报告轮播：报告多为竖版/方版，用 contain 完整显示，避免裁切 */
.carousel--contain { aspect-ratio: 4 / 3; }
.carousel--contain .carousel__slide img,
.carousel.is-active.carousel--contain .carousel__slide img { object-fit: contain; background: #f4f6f9; }
@media (prefers-reduced-motion: reduce) { .carousel.is-active .carousel__slide { transition: none; } }

/* 质检报告轮播（采购知识页）：报告以完整比例展示，并做基础防下载 */
.qc-report { margin-top: 8px; }
.qc-report .carousel { aspect-ratio: 4 / 3; }
.qc-report .carousel.is-active .carousel__slide img { object-fit: contain; background: #f4f6f9; }
.qc-report .carousel__slide img { -webkit-user-drag: none; user-select: none; }
.qc-report .qc-slide__meta { position: absolute; left: 0; right: 0; bottom: 0; padding: 16px 16px 14px; background: linear-gradient(transparent, rgba(15,23,42,.85)); color: #fff; pointer-events: none; }
.qc-report .qc-slide__title { display: block; font-weight: 600; font-size: 15px; line-height: 1.4; }
.qc-report .qc-slide__date { display: block; font-size: 12px; opacity: .82; margin-top: 3px; }

/* 路线 / 流程 */
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: step; }
.flow__step { position: relative; padding: 24px 20px; border: 1px solid var(--border); border-radius: var(--r-md); background: var(--surface); }
.flow__step::before { counter-increment: step; content: "0" counter(step); font-size: 13px; font-weight: 700; color: var(--gold); }
.flow__step h4 { margin: 10px 0 6px; font-size: 16px; }
.flow__step p { font-size: 14px; color: var(--text-mut); }
.flow__step { cursor: pointer; text-decoration: none; color: inherit; display: block; }
.flow__go { display: inline-block; margin-top: 12px; font-size: 13.5px; font-weight: 700; color: var(--gold); letter-spacing: .3px; }
.flow__step:hover .flow__go { text-decoration: underline; }

/* 产品卡 */
.product {
  display: flex; flex-direction: column; gap: 14px;
  background: linear-gradient(180deg, var(--surface), var(--bg-700));
  border: 1px solid var(--border); border-radius: var(--r-md); padding: 24px; transition: .25s;
}
.product:hover { border-color: rgba(224,169,78,.5); transform: translateY(-3px); box-shadow: var(--shadow); }
.product__art { aspect-ratio: 1 / 1; border-radius: var(--r-sm); overflow: hidden; border: 1px solid var(--border-soft); background: var(--bg-800); display: grid; place-items: center; }
.product__art svg { width: 100%; height: 100%; }
.product__art img { width: 100%; height: 100%; object-fit: cover; padding: 0; }
.product__title { display: flex; align-items: center; justify-content: space-between; }
.product__title h3 { font-size: 19px; }
.product ul.spec { margin-top: 6px; display: grid; gap: 7px; }
.product ul.spec li { font-size: 14px; color: var(--text-soft); display: flex; gap: 9px; }
.product ul.spec li::before { content: "▹"; color: var(--gold); }

/* 列表文章（知识/新闻） */
.post { display: flex; align-items: center; gap: 18px; padding: 22px 0; border-bottom: 1px solid var(--border-soft); }
.post__date { flex: 0 0 92px; font-size: 13px; color: var(--text-mut); }
.post__date b { display: block; font-size: 26px; color: var(--gold); line-height: 1; }
.post__thumb { flex: 0 0 140px; aspect-ratio: 4 / 3; border-radius: 10px; overflow: hidden; background: var(--surface); }
.post__thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.post__main { flex: 1 1 auto; min-width: 0; }
.post h3 { font-size: 18.5px; }
.post h3 a:hover { color: var(--gold-soft); }
.post p { color: var(--text-mut); font-size: 14.5px; margin-top: 6px; }
.post__cat { font-size: 12.5px; color: var(--teal-soft); font-weight: 600; }

/* 采购知识页 FAQ（可见问答 + FAQPage 结构化数据，利于 AI/搜索引用） */
.faq { margin-top: 38px; }
.faq__item { border: 1px solid var(--border-soft); border-radius: var(--r-sm); padding: 0 18px; margin-bottom: 12px; background: var(--surface); }
.faq__item summary { cursor: pointer; padding: 16px 0; font-weight: 600; font-size: 16px; list-style: none; display: flex; justify-content: space-between; align-items: center; color: var(--text); }
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after { content: "+"; color: var(--teal); font-size: 22px; font-weight: 700; line-height: 1; }
.faq__item[open] summary::after { content: "\2212"; }
.faq__item p { padding: 0 0 16px; color: var(--text-soft); margin: 0; line-height: 1.7; }
@media (max-width: 560px) {
  .post { gap: 12px; }
  .post__date { flex-basis: 60px; }
  .post__date b { font-size: 20px; }
  .post__thumb { display: none; }
  .post__main p { display: none; }
}

/* 首页文章摘要卡片（动态调取真实文章 + 特色图） */
.home-posts .section-head { margin-bottom: 18px; }
.home-posts__list { display: grid; gap: 14px; }
.post-card { display: flex; gap: 14px; align-items: stretch; padding: 12px; border: 1px solid var(--border); border-radius: var(--r-md); background: var(--surface); text-decoration: none; color: inherit; transition: border-color .2s, transform .2s, background .2s; }
.post-card:hover, .post-card:focus-visible { border-color: var(--gold); transform: translateY(-2px); background: var(--bg-800); outline: none; }
.post-card__thumb { flex: 0 0 116px; aspect-ratio: 4 / 3; align-self: center; border-radius: 10px; overflow: hidden; background: var(--bg-800); display: block; }
.post-card__thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.post-card__body { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.post-card__cat { font-size: 12px; font-weight: 600; color: var(--gold-soft); letter-spacing: .03em; }
.post-card__title { font-size: 16px; line-height: 1.4; color: #f1f5f9; font-weight: 600; }
.post-card__excerpt { font-size: 13px; line-height: 1.5; color: var(--text-mut); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.home-posts__empty { color: var(--text-mut); font-size: 14px; }

/* ---------- 表单 ---------- */
.form { display: grid; gap: 18px; max-width: 640px; }
.field { display: grid; gap: 8px; }
.field label { font-size: 14px; color: var(--text-soft); font-weight: 500; }
.field label .req { color: var(--gold); }
.field input, .field select, .field textarea {
  background: var(--bg-700); border: 1px solid var(--border); color: var(--text);
  padding: 13px 15px; border-radius: var(--r-sm); font-size: 15px; font-family: inherit; transition: .2s; width: 100%;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--gold); box-shadow: 0 0 0 3px rgba(224,169,78,.14); }
.field textarea { min-height: 120px; resize: vertical; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form__note { font-size: 13px; color: var(--text-mut); }
.form__ok { display: none; padding: 16px 18px; border-radius: var(--r-sm); background: rgba(52,192,138,.12); border: 1px solid rgba(52,192,138,.3); color: var(--up); font-size: 14.5px; }
.form__ok.is-show { display: block; }

/* CTA 横幅 */
.cta-band {
  background: linear-gradient(135deg, rgba(224,169,78,.14), rgba(43,179,163,.10)), var(--surface);
  border: 1px solid var(--border); border-radius: var(--r-lg); padding: 48px;
  display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap;
}
/* 首页底部 CTA：居中 + 高清底图（仅首页，不影响内页） */
body.home .cta-band{
  display:block; text-align:center;
  background:linear-gradient(rgba(13,23,38,.74),rgba(13,23,38,.74)),url('assets/img/jordan-phosphate-mine-08.jpg') center/cover no-repeat;
  border-color:rgba(224,169,78,.35);
}
body.home .cta-band::before{display:none}
body.home .cta-band h2, body.home .cta-band .lead{color:#fff}
body.home .cta-band .btn{margin-top:22px}

/* 面包屑 */
.crumb { font-size: 13.5px; color: var(--text-mut); padding-top: calc(var(--nav-h) + 10px); }
/* 内页（非首页）：收窄顶部留白——crumb 已承担固定导航的补偿高度，section 顶部不必再留一大段空白 */
body:not(.home) .section--tight { padding-top: 22px; }
.crumb a:hover { color: var(--gold-soft); }

/* WordPress 基础兼容 */
.alignwide, .alignfull { max-width: none; }
.wp-caption { max-width: 100%; }
.screen-reader-text { position: absolute; width: 1px; height: 1px; overflow: hidden; }

/* ---------- 无障碍增强 ---------- */
/* 键盘焦点可见性：链接与按钮在键盘导航（Tab）时显示描边，鼠标点击不触发 */
a:focus-visible, button:focus-visible, .btn:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 6px;
}
/* 跳到主内容链接：默认移出视口，键盘聚焦时滑入可见 */
.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 100;
  background: var(--gold); color: #1a1206; padding: 11px 18px;
  border-radius: 8px; font-weight: 700; transition: top .2s ease;
}
.skip-link:focus { top: 12px; }

/* 内页主标题：语义用 h1，视觉沿用原 h2 字号，保持设计一致 */
.section-head h1, .hero__grid h1 { font-size: clamp(26px, 3.4vw, 38px); line-height: 1.2; }

/* 表单校验状态 */
.field input[aria-invalid="true"], .field select[aria-invalid="true"] { border-color: var(--down); }
.form__err { color: var(--down); font-size: 13.5px; margin-top: 4px; }

/* 动画 —— 默认可见，仅 JS 启用(html.js)才隐藏初始态，保证无 JS / 百度抓取时内容照常显示 */
.reveal { transition: .6s cubic-bezier(.22,.61,.36,1); }
html.js .reveal { opacity: 0; transform: translateY(18px); }
html.js .reveal.is-in { opacity: 1; transform: none; }

/* 卡片 / 产品悬浮光效（鼠标跟随径向光 + 边框发光），纯 CSS hover，JS 仅提供坐标 */
.card, .product { position: relative; overflow: hidden; }
.card::after, .product::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity .3s ease;
  background: radial-gradient(420px circle at var(--mx, 30%) var(--my, 0%), rgba(224,169,78,.14), transparent 42%);
}
.card:hover::after, .product:hover::after { opacity: 1; }

/* 按钮 hover 流光（纯 CSS，不遮挡文字、不影响点击） */
.btn { position: relative; overflow: hidden; isolation: isolate; }
.btn::before {
  content: ""; position: absolute; top: 0; left: -130%; width: 55%; height: 100%; z-index: -1;
  background: linear-gradient(120deg, transparent, rgba(255,255,255,.35), transparent);
  transform: skewX(-20deg); transition: left .55s ease; pointer-events: none;
}
.btn:hover::before { left: 130%; }

/* 导航滚动变色 */
.nav.is-scrolled { background: rgba(8,11,16,.92); box-shadow: 0 10px 30px -14px rgba(0,0,0,.6); }

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  /* 导航：宽度不足时收起为汉堡菜单（新增「实景展示」后共 6 项，需更多空间） */
  .nav__links { display: none; }
  .nav__toggle { display: block; }
  .nav__cta .btn--ghost { display: none; }
  /* 移动端：去掉页眉「免费询价」按钮（与收起导航一致，避免窄屏拥挤） */
  .nav__cta .btn--primary { display: none; }
  .hero__grid { grid-template-columns: 1fr; gap: 36px; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__about { grid-column: 1 / -1; }
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--prod { grid-template-columns: 1fr; }
  .flow { grid-template-columns: repeat(2, 1fr); }
  /* 产区直采：窄屏下文字在上、矿区轮播整宽在下（避免右栏窄列太小） */
  .origin { grid-template-columns: 1fr; gap: 28px; }
  /* 信任条：手机/平板改为 2x2 方阵，避免 3+1 别扭 */
  .hero__trust { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 12px; padding: 14px; }
  .hero__trust li { justify-content: center; font-size: 15px; padding: 10px 12px; }
  /* 平板：首页间距同步收紧，避免回落到默认 84px */
  body.home .section { padding: 40px 0; }
  body.home .section--tight { padding: 32px 0; }
  body.home .hero { padding-bottom: 16px; }
  body.home .section-head { margin-bottom: 28px; }
}
@media (max-width: 680px) {
  /* 收窄固定页眉：释放小屏浏览空间 */
  :root { --nav-h: 54px; }
  .nav__inner { padding: 0 16px; }
  .nav .brand { font-size: 16px; gap: 9px; }
  .nav .brand small { display: none; }
  /* 移动端：隐藏右下角企业微信浮动图标（避免遮挡内容） */
  .fab { display: none; }
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__about { grid-column: 1 / -1; }
  .form__row { grid-template-columns: 1fr; }
  .cta-band { padding: 30px; }
  .section { padding: 48px 0; }
  body.home .section { padding: 30px 0; }
  body.home .section--tight { padding: 26px 0; }
  body.home .hero { padding-bottom: 14px; }
  body.home .section-head { margin-bottom: 24px; }
  .hero { padding-top: calc(var(--nav-h) + 16px); }
  /* 移动端压缩文章封面高度，确保标题+正文首屏可见（避免客户误以为无正文） */
  .article__cover { max-width: 100%; margin: 4px auto 18px; }
  .article__cover img { max-height: 200px; object-fit: cover; }
  /* 移动端：首页主标题放大、统计文字稍小，主标题层级更突出（避免主标题比统计字还小） */
  .hero h1 { font-size: clamp(30px, 8vw, 38px); line-height: 1.18; }
  .hero__stat b { font-size: 22px; }
  .hero__stat span { font-size: 12.5px; }
}

/* ---------- 单篇文章（新闻 / 知识） ---------- */
.article { padding-bottom: 84px; }
.article__head { max-width: 760px; margin: 0 auto 26px; }
.article__head h1 { font-size: clamp(23px, 3vw, 30px); margin: 12px 0 14px; }
.article__meta { color: var(--text-mut); font-size: 14px; display: flex; gap: 10px; align-items: center; }
.article__meta .dot { opacity: .5; }
.article__cover { max-width: 720px; margin: 6px auto 28px; border-radius: var(--r-md); overflow: hidden; border: 1px solid var(--border); }
.article__cover img { width: 100%; height: auto; }
/* 平板/手机（≤900px）：封面与正文图片限高限宽，避免大图占满首屏或溢出（解决"正文第一张图太大"） */
@media (max-width: 900px) {
  .article__cover img { max-height: 200px; object-fit: cover; }
  .article__body img { max-width: 100%; height: auto; }
}
.article__body { max-width: 760px; margin: 0 auto; font-size: 17px; color: var(--text-soft); }
.article__inline-img { display: block; width: 100%; max-width: 100%; height: auto; margin: 28px auto; border-radius: 10px; }
.article__body h2 { font-size: 26px; color: var(--text); margin: 34px 0 12px; }
.article__body h3 { font-size: 21px; color: var(--text); margin: 26px 0 10px; }
.article__body p { margin: 0 0 18px; }
.article__body ul, .article__body ol { margin: 0 0 18px 22px; color: var(--text-soft); list-style: revert; }
.article__body li { margin: 6px 0; }
.article__body a { color: var(--gold-soft); text-decoration: underline; text-underline-offset: 3px; }
.article__body strong { color: var(--text); }
.article__body img { border-radius: var(--r-sm); margin: 10px 0; height: auto; }
.article__body blockquote { border-left: 3px solid var(--gold); padding-left: 16px; color: var(--text); margin: 0 0 18px; font-style: italic; }
.article__foot { max-width: 760px; margin: 40px auto 0; }

/* ---------- 通用页面（展示型：矿场 / 物流 / 质检） ---------- */
.hero--page .container { max-width: 900px; }
.hero--page h1 { font-size: clamp(28px, 4.4vw, 46px); margin: 8px 0 16px; }
.hero--page .lead { color: var(--text-soft); font-size: 18px; max-width: 70ch; }

.page-content { max-width: 1080px; margin: 0 auto; font-size: 16.5px; line-height: 1.75; color: var(--text-soft); }
.page-content > p:first-child { margin-top: 0; }

/* 古腾堡相册块 / 经典相册 shortcode 统一响应式网格 */
.wp-block-gallery, .gallery { display: grid !important; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 24px 0; padding: 0; }
.wp-block-gallery .wp-block-image, .gallery-item { margin: 0; }
.wp-block-gallery img, .gallery-item img, .gallery-icon img { width: 100%; height: auto; border-radius: var(--r-md); display: block; transition: transform .3s ease, box-shadow .3s ease; }
.wp-block-gallery figure:hover img, .gallery-item:hover img { transform: translateY(-3px); box-shadow: 0 16px 36px -16px rgba(0,0,0,.6); }
.wp-block-gallery figcaption, .gallery-item .wp-caption-text { font-size: 13px; color: var(--text-mut); margin-top: 8px; text-align: center; }
.gallery-item dt { padding: 0; }
@media (max-width: 900px) { .wp-block-gallery, .gallery { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .wp-block-gallery, .gallery { grid-template-columns: 1fr; } }

/* ---------- 导航下拉（实景展示） ---------- */
.nav__item { position: relative; }
.nav__submenu { position: absolute; top: 100%; left: 0; min-width: 168px; background: var(--bg-800); border: 1px solid var(--border); border-radius: var(--r-md); padding: 8px; display: none; flex-direction: column; gap: 2px; box-shadow: 0 18px 44px -18px rgba(0,0,0,.75); z-index: 60; }
.nav__item.has-children:hover .nav__submenu,
.nav__item.has-children:focus-within .nav__submenu { display: flex; }
.nav__submenu a { padding: 9px 12px; border-radius: 9px; white-space: nowrap; font-size: 14.5px; }
.nav__submenu a:hover, .nav__submenu a.is-active { background: rgba(255,255,255,.07); color: var(--text); }
/* 移动端：展开菜单里子项纵向平铺 */
.nav__links.is-open .nav__submenu { position: static; display: flex; box-shadow: none; border: 0; background: transparent; padding: 2px 0 2px 14px; }

/* ---------- 首页：物流 / 质检 单图展示模块 ---------- */
.home-showcase { gap: 24px; }
/* 物流与质检并排时两栏轮播框同高，避免左扁右方显得一大一小 */
.home-showcase .carousel { aspect-ratio: 4 / 3; }
.showcase-card { display: flex; flex-direction: column; background: var(--bg-800, #142033); border: 1px solid var(--border); border-radius: var(--r-md); overflow: hidden; text-decoration: none; color: inherit; transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.showcase-card:hover, .showcase-card:focus-visible { transform: translateY(-4px); box-shadow: 0 22px 50px -28px rgba(0,0,0,.8); border-color: var(--gold); }
.showcase-card__media { display: block; overflow: hidden; background: #0f172a; }
.showcase-card__media img { width: 100%; height: auto; display: block; transition: transform .4s ease; }
.showcase-card:hover .showcase-card__media img { transform: scale(1.04); }
.showcase-card__body { display: flex; flex-direction: column; gap: 8px; padding: 20px 22px 22px; }
.showcase-card__cat { align-self: flex-start; font-size: 12.5px; letter-spacing: .08em; color: var(--gold); border: 1px solid var(--gold); border-radius: 999px; padding: 3px 12px; }
.showcase-card__title { font-size: 20px; font-weight: 700; margin: 2px 0 0; }
.showcase-card__desc { color: var(--muted, #9fb0c3); font-size: 14.5px; line-height: 1.65; }
.showcase-card__more { margin-top: 4px; font-weight: 600; color: var(--gold); }
.showcase-card:hover .showcase-card__more { text-decoration: underline; }
.showcase-card__ports { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 2px; }
.showcase-card__ports > span { font-size: 13px; color: var(--text-soft, #c3d0de); background: rgba(255,255,255,.05); border: 1px solid var(--border); border-radius: 999px; padding: 4px 11px; }

/* 物流专门页：图片墙 */
.media-wall { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.media-wall__item { margin: 0; border-radius: var(--r-md); overflow: hidden; background: var(--bg-800, #142033); border: 1px solid var(--border); }
.media-wall__item img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; display: block; }
.media-wall__item figcaption { padding: 12px 14px; font-size: 13.5px; color: var(--muted, #9fb0c3); }
@media (max-width: 760px) { .media-wall { grid-template-columns: 1fr; } }

/* 物流专门页：视频占位 / 视频 */
.video-placeholder { position: relative; aspect-ratio: 16 / 9; border-radius: var(--r-md); overflow: hidden; display: grid; place-content: center; text-align: center; gap: 14px; padding: 24px; background: linear-gradient(135deg, #16202e, #0f172a); border: 1px dashed rgba(255,255,255,.2); }
.video-placeholder__icon { width: 72px; height: 72px; margin: 0 auto; border-radius: 50%; display: grid; place-items: center; font-size: 26px; color: #0f172a; background: var(--gold); box-shadow: 0 12px 30px -12px rgba(0,0,0,.6); }
.video-placeholder__text { font-size: 18px; font-weight: 700; color: #e7eef7; margin: 0; }
.video-placeholder__hint { font-size: 13.5px; color: #9fb0c3; max-width: 460px; margin: 0 auto; line-height: 1.6; }
.logi-video { width: 100%; aspect-ratio: 16 / 9; border-radius: var(--r-md); display: block; background: #000; }

/* 卡片序号（克制版，替代 emoji 图标） */
.card__num { font-size: 14px; font-weight: 700; letter-spacing: .06em; color: var(--gold); margin-bottom: 4px; }
@media (max-width: 760px) { .home-showcase { grid-template-columns: 1fr; } }

/* ---------- 矿种板块：视频占位（素材整理后替换为 <video> 或嵌入） ---------- */
.video-placeholder { display: grid; place-items: center; min-height: 170px; border: 1px dashed var(--border); border-radius: var(--r-md); background: var(--bg-800); color: var(--text-mut); font-size: 14px; padding: 24px; text-align: center; line-height: 1.6; }
.gallery-item .video-placeholder { min-height: 100%; width: 100%; }

/* ---------- 矿种板块：产品目录卡片（整卡可点击） ---------- */
.card.product-link { transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.card.product-link:hover { transform: translateY(-4px); box-shadow: 0 22px 50px -28px rgba(0,0,0,.8); border-color: var(--gold); }

/* ======================================================================
   美化增强版 (v2) —— 在母版基础上叠加，可整体删除还原
   设计意图：强化“金+青”高级质感，增加区块节奏与悬浮微交互
   ====================================================================== */

/* 1) 区块标题：金→青渐变点缀条，提升层级与精致度 */
.section-head { position: relative; }
.section-head h2 { position: relative; padding-bottom: 16px; }
.section-head h2::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 56px; height: 3px; border-radius: 3px;
  background: linear-gradient(90deg, var(--gold), var(--teal));
}
.section-head h2.about-title { font-size: clamp(18px, 2.1vw, 22px); line-height: 1.3; }
.section-head .eyebrow { margin-bottom: 14px; }

/* 2) Hero 主标题强调词：金→青渐变文字，更具高级感 */
.hero h1 em {
  background: linear-gradient(115deg, var(--gold-soft), var(--teal-soft));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

/* 3) 卡片 / 产品卡：悬浮金辉光 + 内层高光，质感升级 */
.card, .product, .card.product-link { box-shadow: 0 1px 0 rgba(255,255,255,.03) inset; }
.card:hover, .product:hover, .card.product-link:hover {
  border-color: rgba(224,169,78,.55);
  transform: translateY(-4px);
  box-shadow: var(--shadow), var(--shadow-glow);
}

/* 4) 卡片图标：渐变底 + 描边，更精致 */
.card__icon {
  background: linear-gradient(135deg, rgba(224,169,78,.20), rgba(43,179,163,.14));
  border: 1px solid rgba(224,169,78,.28);
}

/* 5) 产品图框：顶部微光，画面更通透 */
.product__art {
  background: radial-gradient(120% 90% at 50% 0%, rgba(224,169,78,.05), var(--bg-800));
}

/* 6) 流程步骤卡：悬浮上浮 + 金边 */
.flow__step { transition: .25s ease; }
.flow__step:hover { transform: translateY(-3px); border-color: rgba(224,169,78,.42); box-shadow: var(--shadow); }
.flow__step::before { color: var(--gold-soft); }

/* 7) CTA 横幅：静态金辉光 + 顶部流光，成为视觉收尾锚点 */
.cta-band { position: relative; overflow: hidden; border-color: rgba(224,169,78,.35); box-shadow: var(--shadow-glow); }
.cta-band::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(700px 240px at 12% -20%, rgba(224,169,78,.16), transparent 60%),
              radial-gradient(600px 240px at 92% 120%, rgba(43,179,163,.14), transparent 60%);
}

/* 8) 首页区块节奏：区块之间加一条居中渐隐分隔线，增强层次 */
body.home .section { position: relative; }
body.home .section + .section::before {
  content: ""; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: min(1100px, 92%); height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}

/* 9) 图片类卡片（物流/质检展示卡）悬浮也带金辉光，统一体验 */
.showcase-card:hover, .showcase-card:focus-visible {
  box-shadow: 0 22px 50px -28px rgba(0,0,0,.8), var(--shadow-glow);
}

/* 10) 文章摘要卡悬浮：金辉光一致化 */
.post-card:hover, .post-card:focus-visible {
  box-shadow: 0 16px 40px -22px rgba(0,0,0,.7), 0 0 0 1px rgba(224,169,78,.30);
}

/* ======================================================================
   联系入口：企业微信悬浮 + 页脚关注区 + 联系页二维码墙（占位版）
   待替换：企业微信活码 / 公众号二维码图片；抖音·小红书主页链接
   ====================================================================== */

/* 通用二维码占位（虚线框，未来替换为 <img src="...">） */
.qr-placeholder {
  display: grid; place-items: center; text-align: center; gap: 4px;
  border: 2px dashed var(--border); border-radius: var(--r-sm);
  background: var(--bg-800); color: var(--text-mut); padding: 12px; line-height: 1.4;
}
.qr-placeholder b { font-size: 13px; font-weight: 600; color: var(--text-soft); }
.qr-placeholder small { font-size: 11px; opacity: .85; }
.qr-placeholder--lg { width: 150px; height: 150px; }
.qr-placeholder--sm { width: 74px; height: 74px; }

/* 企业微信右下角悬浮按钮（<details> 原生折叠，零 JS） */
.fab { position: fixed; right: 22px; bottom: 22px; z-index: 80; }
.fab > summary {
  list-style: none; cursor: pointer; width: 56px; height: 56px; border-radius: 50%;
  display: grid; place-items: center; color: #fff; border: 0;
  background: linear-gradient(135deg, var(--teal), var(--teal-soft));
  box-shadow: 0 14px 30px -10px rgba(0,0,0,.45); transition: transform .2s ease;
}
.fab > summary::-webkit-details-marker { display: none; }
.fab > summary:hover { transform: translateY(-2px) scale(1.05); }
.fab > summary:focus-visible { outline: 2px solid var(--teal-soft); outline-offset: 3px; }
.fab__panel {
  position: absolute; right: 0; bottom: 70px; width: 260px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-md);
  padding: 16px; box-shadow: var(--shadow); display: none;
}
.fab[open] .fab__panel { display: block; }
.fab__panel-head { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; margin-bottom: 12px; }
.fab__panel-head strong { font-size: 15px; color: var(--text); }
.fab__panel-head span { font-size: 11px; color: var(--text-mut); }
.fab__cta {
  display: block; margin-top: 12px; padding: 10px 14px; border-radius: 8px;
  background: linear-gradient(135deg, var(--teal), var(--teal-soft)); color: #fff;
  text-align: center; font-size: 13.5px; font-weight: 500; text-decoration: none;
  transition: transform .15s ease;
}
.fab__cta:hover { transform: translateY(-1px); }
.fab__tip { margin-top: 10px; font-size: 12.5px; color: var(--text-mut); line-height: 1.6; }

/* 页脚「关注我们」区 */
.footer__social {
  margin-top: 34px; padding-top: 26px; border-top: 1px solid var(--border-soft);
  display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap;
}
.footer__social-intro { max-width: 320px; }
.footer__social-intro h4 { font-size: 15px; letter-spacing: .08em; color: var(--text); margin-bottom: 6px; }
.footer__social-intro p { font-size: 13.5px; color: var(--text-mut); line-height: 1.6; }
.footer__social-list { display: flex; gap: 14px; flex-wrap: wrap; }
.social-card {
  display: flex; align-items: center; gap: 12px; text-decoration: none; color: inherit;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-md);
  padding: 12px 16px; transition: border-color .2s ease, transform .2s ease;
}
.social-card:hover { border-color: var(--teal); transform: translateY(-2px); }
.social-card__icon { flex: 0 0 42px; width: 42px; height: 42px; border-radius: 11px; display: grid; place-items: center; color: #fff; }
.social-card__icon--wx { background: #07C160; }
.social-card__icon--dy { background: #161823; }
.social-card__icon--xhs { background: #FF2442; }
.social-card__body { display: flex; flex-direction: column; gap: 3px; }
.social-card__body strong { font-size: 14.5px; color: var(--text); }
.social-card__body small { font-size: 12px; color: var(--text-mut); }
.social-card__link { font-size: 12.5px; font-weight: 600; color: var(--teal); }

/* 页脚「产业链伙伴 / 行业重点企业」区 */
.footer__partners { margin-top: 30px; padding-top: 22px; border-top: 1px solid var(--border-soft); }
.footer__partners h4 { font-size: 14px; letter-spacing: .08em; color: var(--text); margin: 0 0 6px; }
.footer__partners-note { font-size: 12px; color: var(--text-mut); margin: 0 0 12px; }
.partner-links { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.partner-links a { font-size: 13.5px; color: var(--text-mut); text-decoration: none; transition: color .2s ease; }
.partner-links a:hover { color: var(--teal); }

/* 联系页二维码墙 */
.contact-qr { margin-top: 40px; }
.contact-qr h3 { font-size: 19px; margin-bottom: 18px; color: var(--text); }
.contact-qr__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.qr-card {
  display: flex; flex-direction: column; align-items: center; gap: 8px; text-align: center;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-md); padding: 18px;
  text-decoration: none; color: inherit; transition: border-color .2s ease, transform .2s ease;
}
.qr-card:hover { border-color: var(--teal); transform: translateY(-2px); }
.qr-card strong { font-size: 15px; color: var(--text); }
.qr-card small { font-size: 12.5px; color: var(--text-mut); }

/* 窄屏适配 */
@media (max-width: 680px) {
  .fab { right: 16px; bottom: 16px; }
  .fab > summary { width: 50px; height: 50px; }
  .fab__panel { width: 220px; }
  .footer__social { flex-direction: column; align-items: flex-start; }
  .contact-qr__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 420px) {
  .contact-qr__grid { grid-template-columns: 1fr; }
}

/* 类目页翻页导航（与商务蓝 .pager 协调） */
.pager { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin: 34px 0 8px; }
.pager a, .pager span { display: inline-flex; align-items: center; justify-content: center; min-width: 42px; height: 42px; padding: 0 14px; border-radius: var(--r-sm); border: 1px solid var(--border); color: var(--text-soft); font-weight: 600; font-size: 14px; text-decoration: none; transition: border-color .2s ease, color .2s ease; }
.pager a:hover { border-color: var(--gold); color: var(--gold); }
.pager .current { background: var(--gold); border-color: var(--gold); color: #0f172a; }
.pager .dots { border: 0; color: var(--text-mut); }