/*
Theme Name: Zhongxin Data
Theme URI: https://zhongxindata.hk
Author: Zhongxin Data
Description: 自建独立站主题。零第三方依赖，输出干净语义化 HTML 与内联结构化数据，面向 AI 搜索引擎（GEO）优化。商品使用自定义文章类型 zxd_product + 分类法 zxd_category。
Version: 1.0.0
Requires at least: 6.5
Tested up to: 6.9
Requires PHP: 8.0
License: GPL-2.0-or-later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: zhongxin
Tags: e-commerce, blog, custom-menu, custom-logo, featured-images, translation-ready
*/

/* ==========================================================================
   Zhongxin Data — WordPress 主题样式
   与静态站版本保持一致；无外部字体/CDN 依赖
   ========================================================================== */

:root {
  --ink: #12161c;
  --ink-2: #444d59;
  --ink-3: #6b7580;
  --line: #e3e7ec;
  --line-2: #eef1f4;
  --bg: #ffffff;
  --bg-2: #f7f9fb;
  --brand: #0b5fff;
  --brand-ink: #06337f;
  --brand-wash: #eef4ff;
  --wa: #25d366;
  --ok: #1a7f37;
  --radius: 10px;
  --maxw: 1200px;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono: "SF Mono", Consolas, "Liberation Mono", Menlo, monospace;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; font-family: var(--sans); font-size: 16px; line-height: 1.65;
  color: var(--ink); background: var(--bg); -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--brand-ink); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 .5em; font-weight: 650; letter-spacing: -.011em; }
h1 { font-size: clamp(1.85rem, 1.2rem + 2.4vw, 2.9rem); }
h2 { font-size: clamp(1.4rem, 1.1rem + 1.2vw, 2rem); margin-top: 1.4em; }
h3 { font-size: 1.2rem; margin-top: 1.3em; }
p { margin: 0 0 1.05em; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.wrap-narrow { max-width: 780px; margin: 0 auto; padding: 0 24px; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 12px; top: 12px; background: #fff; padding: 10px 14px; border-radius: 8px; z-index: 100; border: 2px solid var(--brand); }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.94); backdrop-filter: saturate(180%) blur(12px); border-bottom: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; gap: 28px; height: 66px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.06rem; color: var(--ink); letter-spacing: -.02em; }
.brand:hover { text-decoration: none; }
.brand-mark { width: 28px; height: 28px; border-radius: 7px; flex: 0 0 auto; background: linear-gradient(135deg, #0b5fff, #06337f); display: grid; place-items: center; color: #fff; font-size: 13px; font-weight: 700; }
.brand small { display: block; font-size: 11px; font-weight: 500; color: var(--ink-3); letter-spacing: .02em; }
.nav { display: flex; align-items: center; gap: 22px; margin-left: auto; flex-wrap: wrap; }
.nav a { color: var(--ink-2); font-size: .93rem; font-weight: 500; }
.nav a:hover { color: var(--ink); text-decoration: none; }
.cta-wa { display: inline-flex; align-items: center; gap: 7px; background: var(--wa); color: #06311a; font-weight: 600; font-size: .9rem; padding: 9px 15px; border-radius: 8px; white-space: nowrap; }
.cta-wa:hover { text-decoration: none; filter: brightness(.96); }
.cta-wa svg { width: 16px; height: 16px; fill: currentColor; }
@media (max-width: 900px) { .nav { display: none; } .header-inner { gap: 12px; } }

/* Hero */
.hero { padding: 76px 0 64px; border-bottom: 1px solid var(--line-2); background: var(--bg-2); }
.hero h1 { max-width: 17ch; }
.hero .lede { font-size: 1.13rem; color: var(--ink-2); max-width: 60ch; margin-bottom: 1.8em; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 22px; border-radius: 9px; font-weight: 600; font-size: .96rem; border: 1px solid transparent; cursor: pointer; }
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-ink); color: #fff; }
.btn-ghost { border-color: var(--line); color: var(--ink); background: #fff; }
.btn-ghost:hover { border-color: var(--ink-3); }
.btn-wa { background: var(--wa); color: #06311a; }
.btn-wa:hover { background: #1eb856; color: #06311a; }
.btn-wa svg { width: 16px; height: 16px; fill: currentColor; }
.eyebrow { display: inline-block; font-size: .78rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--brand-ink); background: var(--brand-wash); padding: 5px 11px; border-radius: 100px; margin-bottom: 18px; }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; margin-top: 48px; }
.stat { background: #fff; padding: 20px 22px; }
.stat-value { font-size: 1.5rem; font-weight: 700; letter-spacing: -.02em; }
.stat-label { font-size: .84rem; color: var(--ink-3); margin-top: 2px; }
@media (max-width: 760px) { .stats { grid-template-columns: repeat(2, 1fr); } }

/* Sections */
.section { padding: 64px 0; }
.section-alt { background: var(--bg-2); border-block: 1px solid var(--line-2); }
.section-head { margin-bottom: 34px; max-width: 66ch; }
.section-head p { color: var(--ink-2); font-size: 1.03rem; margin-bottom: 0; }

/* Cards */
.grid { display: grid; gap: 20px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 1000px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; } }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; display: flex; flex-direction: column; gap: 8px; }
.card:hover { border-color: #c9d1da; }
.card h3 { margin: 0; font-size: 1.06rem; }
.card p { margin: 0; color: var(--ink-2); font-size: .93rem; }
.card-meta { margin-top: auto; padding-top: 10px; font-size: .84rem; color: var(--ink-3); display: flex; align-items: center; gap: 8px; }
.card-link { color: var(--brand-ink); font-weight: 600; font-size: .9rem; }

/* Product cards */
.p-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; transition: border-color .15s; }
.p-card:hover { border-color: #c9d1da; }
.p-thumb { aspect-ratio: 4/3; background: var(--bg-2); display: grid; place-items: center; border-bottom: 1px solid var(--line-2); overflow: hidden; }
.p-thumb img { width: 100%; height: 100%; object-fit: contain; padding: 14px; }
.p-thumb-empty { color: var(--ink-3); font-size: .8rem; text-align: center; padding: 20px; }
.p-body { padding: 16px 18px 18px; display: flex; flex-direction: column; gap: 7px; flex: 1; }
.p-type { font-size: .74rem; font-weight: 600; letter-spacing: .05em; text-transform: uppercase; color: var(--brand-ink); }
.p-title { font-size: .95rem; font-weight: 600; line-height: 1.4; margin: 0; }
.p-title a { color: var(--ink); }
.p-title a:hover { color: var(--brand-ink); }
.p-foot { margin-top: auto; padding-top: 10px; display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.p-ask { font-size: .87rem; font-weight: 600; color: var(--wa); }
.badge-used { display: inline-block; font-size: .7rem; font-weight: 600; letter-spacing: .04em; color: #0b5a2b; background: #e6f6ec; padding: 2px 7px; border-radius: 4px; }
.badge-stock { display: inline-flex; align-items: center; gap: 5px; font-size: .76rem; font-weight: 600; color: var(--ok); }
.badge-stock::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--ok); }

/* Breadcrumb */
.crumbs { padding: 16px 0; font-size: .84rem; color: var(--ink-3); border-bottom: 1px solid var(--line-2); }
.crumbs a { color: var(--ink-3); }
.crumbs span { margin: 0 7px; opacity: .55; }

/* Product detail */
.pd { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; padding: 44px 0 64px; align-items: start; }
@media (max-width: 900px) { .pd { grid-template-columns: 1fr; gap: 30px; } }
.pd-gallery { position: sticky; top: 90px; }
.pd-main { aspect-ratio: 4/3; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); display: grid; place-items: center; overflow: hidden; }
.pd-main img { width: 100%; height: 100%; object-fit: contain; padding: 22px; }
.pd-thumbs { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.pd-thumb { width: 72px; height: 72px; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: #fff; }
.pd-thumb img { width: 100%; height: 100%; object-fit: contain; padding: 5px; }
.pd-info h1 { font-size: clamp(1.45rem, 1.1rem + 1.4vw, 2.05rem); margin-bottom: 12px; }
.pd-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.pd-desc { color: var(--ink-2); font-size: 1rem; }
.pd-block { margin: 26px 0; padding: 22px; background: var(--bg-2); border: 1px solid var(--line-2); border-radius: var(--radius); }
.pd-block h3 { margin-top: 0; font-size: 1rem; }
.pd-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 22px; }
.spec-table { width: 100%; border-collapse: collapse; font-size: .93rem; }
.spec-table th, .spec-table td { text-align: left; padding: 9px 0; border-bottom: 1px solid var(--line-2); vertical-align: top; }
.spec-table th { width: 40%; color: var(--ink-3); font-weight: 500; }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: 0; }
.ref-note { font-size: .88rem; color: var(--ink-3); background: var(--bg-2); padding: 12px 15px; border-radius: 8px; border-left: 3px solid var(--line); margin-top: 16px; }
.ref-note code { font-family: var(--mono); font-size: .85em; background: #fff; padding: 2px 6px; border-radius: 4px; border: 1px solid var(--line); }

/* Article */
.article { padding: 44px 0 70px; }
.article-meta { display: flex; gap: 16px; flex-wrap: wrap; font-size: .87rem; color: var(--ink-3); margin-bottom: 26px; padding-bottom: 20px; border-bottom: 1px solid var(--line-2); }
.article-body h2 { margin-top: 2em; }
.article-body h3 { margin-top: 1.6em; }
.article-body table { width: 100%; border-collapse: collapse; margin: 1.6em 0; font-size: .93rem; }
.article-body th, .article-body td { border: 1px solid var(--line); padding: 9px 12px; text-align: left; vertical-align: top; }
.article-body th { background: var(--bg-2); font-weight: 600; }
.article-body blockquote { margin: 1.6em 0; padding: 14px 20px; border-left: 3px solid var(--brand); background: var(--brand-wash); border-radius: 0 8px 8px 0; color: var(--ink-2); }
.article-body blockquote p:last-child { margin-bottom: 0; }
.article-body ul, .article-body ol { margin: 0 0 1.05em; padding-left: 1.4em; }
.article-body li { margin-bottom: .45em; }
.article-body code { font-family: var(--mono); font-size: .88em; background: var(--bg-2); padding: 2px 6px; border-radius: 4px; }
.article-body pre { background: var(--ink); color: #e6edf3; padding: 16px; border-radius: 8px; overflow-x: auto; font-size: .87rem; line-height: 1.55; }
.article-body pre code { background: none; padding: 0; color: inherit; }

/* Pagination */
.pagination { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 40px; }
.pagination .page-numbers { display: inline-block; padding: 8px 14px; border: 1px solid var(--line); border-radius: 8px; font-size: .92rem; }
.pagination .page-numbers.current { background: var(--brand); color: #fff; border-color: var(--brand); }
.pagination .page-numbers.dots { border-color: transparent; }

/* CTA band */
.cta-band { background: var(--ink); color: #fff; padding: 52px 0; }
.cta-band h2 { color: #fff; margin-top: 0; }
.cta-band p { color: #b9c3cf; max-width: 60ch; }

/* Footer */
.site-footer { background: var(--bg-2); border-top: 1px solid var(--line); padding: 46px 0 30px; font-size: .91rem; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 36px; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr; gap: 26px; } }
.footer-col h4 { font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-3); margin-bottom: 12px; }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 7px; }
.footer-col a { color: var(--ink-2); }
.footer-bottom { margin-top: 34px; padding-top: 22px; border-top: 1px solid var(--line); color: var(--ink-3); font-size: .85rem; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* ── WhatsApp 悬浮按钮 ─────────────────────────────────
   转化关键件：任何页面滚动时都能一键发起询盘。
   设计要点：
   - 右下角固定，避开页脚内容与移动端安全区
   - 桌面端悬停展开文字，移动端只留圆形图标（不遮挡正文）
   - 滚到底部自动收起，避免长期遮挡页脚
   - 点击时带上当前页面型号作为预填消息，提升询盘效率
*/
.wa-float {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 900;
  display: inline-flex;
  align-items: center;
  gap: 0;
  background: var(--wa);
  color: #06311a;
  border-radius: 999px;
  padding: 0;
  box-shadow: 0 6px 22px rgba(37, 211, 102, .34);
  text-decoration: none;
  transition: transform .18s ease, box-shadow .18s ease, opacity .2s ease;
}
.wa-float:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(37, 211, 102, .42); text-decoration: none; }
.wa-float:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }

/* 圆形图标部分 */
.wa-float-icon {
  width: 56px; height: 56px;
  display: inline-flex; align-items: center; justify-content: center;
  flex: 0 0 56px;
}
.wa-float-icon svg { width: 28px; height: 28px; fill: currentColor; }

/* 展开的文字部分 */
.wa-float-label {
  max-width: 0;
  overflow: hidden;
  white-space: nowrap;
  font-weight: 600;
  font-size: .92rem;
  transition: max-width .22s ease, padding .22s ease;
  padding: 0;
}
.wa-float:hover .wa-float-label,
.wa-float:focus-visible .wa-float-label { max-width: 190px; padding: 0 18px 0 10px; }

/* 滚到底部自动收起（页脚已有 WhatsApp 链接，不再重复遮挡） */
.wa-float.is-hidden { opacity: 0; pointer-events: none; transform: translateY(10px); }

/* 移动端：只保留圆形图标（首次点击由 JS 展开文字） */
@media (max-width: 640px) {
  .wa-float { right: 14px; bottom: 14px; }
  .wa-float-icon { width: 50px; height: 50px; flex-basis: 50px; }
  .wa-float-icon svg { width: 25px; height: 25px; }
  .wa-float:hover .wa-float-label,
  .wa-float:focus-visible .wa-float-label { max-width: 0; padding: 0; }
  .wa-float:hover { transform: none; }
  /* JS 主动加的展开态：需要能撑开文字 */
  .wa-float.is-expanded .wa-float-label { max-width: 190px; padding: 0 18px 0 10px; }
}

/* 尊重系统的减少动效设置 */
@media (prefers-reduced-motion: reduce) {
  .wa-float, .wa-float-label { transition: none; }
  .wa-float:hover { transform: none; }
}

/* WordPress 核心类覆盖 */
.alignwide { max-width: 1200px; }
.alignfull { max-width: none; }
.wp-caption { max-width: 100%; }
.wp-caption-text, .gallery-caption { font-size: .85rem; color: var(--ink-3); }
.sticky, .gallery-caption, .bypostauthor { }
.screen-reader-text { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.alignleft { float: left; margin-right: 1.5em; }
.alignright { float: right; margin-left: 1.5em; }
.wp-block-image img { border-radius: var(--radius); }

/* === ZXD-SEARCH-BEGIN === */
/* ==========================================================================
 * 站内型号搜索（store-analyst · 2026-11-12）
 * 复用主题既有 CSS 变量，不引入新配色 / 新字体族。
 * ========================================================================== */

.zxd-search { display: flex; gap: 8px; align-items: stretch; }
.zxd-search input[type="search"] {
	flex: 1 1 auto; min-width: 0;
	padding: 12px 14px;
	border: 1px solid var(--line);
	border-radius: var(--radius);
	font: inherit; font-size: .98rem; line-height: 1.4;
	color: var(--ink); background: #fff;
	-webkit-appearance: none; appearance: none;
}
.zxd-search input[type="search"]::placeholder { color: var(--ink-3); }
.zxd-search input[type="search"]:focus {
	outline: 2px solid var(--brand); outline-offset: 1px; border-color: var(--brand);
}
.zxd-search .btn { white-space: nowrap; }

/* hero 内：hero-actions 之后、stats 之前 */
.zxd-search--hero { margin: 0 0 28px; max-width: 620px; }

/* 产品归档 / 结果页顶部 */
.zxd-search--inline { margin: 0 0 28px; max-width: 620px; }

/* 页头紧凑版 */
.zxd-search--compact { margin: 0 0 0 auto; }
.zxd-search--compact input[type="search"] { padding: 7px 10px; font-size: .85rem; width: 190px; }
.zxd-search--compact .btn { padding: 7px 12px; font-size: .85rem; }

/* 无结果：WhatsApp 询盘 CTA */
.zxd-search-empty {
	grid-column: 1 / -1;
	border: 1px solid var(--line);
	border-radius: var(--radius);
	padding: 28px;
	background: var(--brand-wash);
}
.zxd-search-empty h2 { margin: 0 0 .4em; font-size: 1.18rem; }
.zxd-search-empty p { margin: 0 0 1em; color: var(--ink-2); }

/* 移动端：紧凑版改为独占一行，输入框铺满（不挤导航） */
@media (max-width: 860px) {
	.zxd-search--hero, .zxd-search--inline { max-width: none; }
	.zxd-search--compact { order: 3; width: 100%; margin: 10px 0 0; }
	.zxd-search--compact input[type="search"] { width: auto; flex: 1 1 auto; }
	.zxd-search--compact .btn { flex: 0 0 auto; }
}
@media (max-width: 520px) {
	.zxd-search { flex-wrap: wrap; }
	.zxd-search input[type="search"] { flex: 1 1 100%; }
	.zxd-search .btn { flex: 1 1 100%; }
	.zxd-search--compact input[type="search"] { flex: 1 1 100%; }
}

/* ======================================================================
   ZXD_HEADER_LAYOUT_FIX (2026-11-12 21:25) — 最终版
   ----------------------------------------------------------------------
   页头加社交图标后的三处布局问题，一并解决：
     ① nav 换行        → nowrap，空间不够靠断点隐藏次要项
     ② header 固定高   → min-height，内容永不溢出
     ③ nav 被压缩但内容不压缩 → nav 不收缩；社交图标组独立靠右
   另修 main.js 注入的 .nav-toggle 的 margin-left:auto 抢位问题（见 main.js）

   本块必须位于 style.css 末尾（优先级高于前面的同名规则）。
   ====================================================================== */

/* ---- 页头容器 ---- */
.site-header {
	position: sticky;
	top: 0;
	z-index: 50;
	background: rgba(255, 255, 255, .94);
	backdrop-filter: saturate(180%) blur(12px);
	border-bottom: 1px solid var(--line);
}
.header-inner {
	display: flex;
	align-items: center;
	gap: 24px;
	min-height: 66px;
	height: auto;
	padding-block: 10px;
	flex-wrap: nowrap;
}

/* ---- logo：不被压缩，副标题不折行 ---- */
.brand {
	display: flex;
	align-items: center;
	gap: 10px;
	flex: 0 0 auto;
	font-weight: 700;
	font-size: 1.06rem;
	color: var(--ink);
	letter-spacing: -.02em;
	white-space: nowrap;
}
.brand:hover { text-decoration: none; }
.brand-mark {
	width: 28px;
	height: 28px;
	border-radius: 7px;
	flex: 0 0 auto;
	background: linear-gradient(135deg, #0b5fff, #06337f);
	display: grid;
	place-items: center;
	color: #fff;
	font-size: 13px;
	font-weight: 700;
}
.brand small {
	display: block;
	font-size: 11px;
	font-weight: 500;
	color: var(--ink-3);
	letter-spacing: .02em;
	white-space: nowrap;
}

/* ---- 导航：完整不收缩、不换行 ---- */
.nav {
	display: flex;
	align-items: center;
	gap: 22px;
	flex: 0 0 auto;          /* 关键：不许被压缩 */
	flex-wrap: nowrap;
	margin-left: 0;          /* 不再用 auto，把右侧留给社交图标 */
	min-width: 0;
	max-width: 100%;
}
.nav a {
	color: var(--ink-2);
	font-size: .93rem;
	font-weight: 500;
	white-space: nowrap;
}
.nav a:hover { color: var(--ink); text-decoration: none; }

/* ---- WhatsApp 按钮：不收缩 ---- */
.cta-wa {
	display: inline-flex;
	align-items: center;
	gap: 7px;
	flex: 0 0 auto;
	background: var(--wa);
	color: #06311a;
	font-weight: 600;
	font-size: .9rem;
	padding: 9px 15px;
	border-radius: 8px;
	white-space: nowrap;
}
.cta-wa:hover { text-decoration: none; filter: brightness(.96); }
.cta-wa svg { width: 16px; height: 16px; fill: currentColor; }

/* ---- 社交图标组：独立靠右，与 nav 之间恒有间距 ---- */
.zxd-social {
	display: flex;
	align-items: center;
	gap: 8px;
	flex: 0 0 auto;
	margin-left: auto;      /* 关键：撑到最右，与 nav 分离 */
	padding-left: 12px;
}
.zxd-social__item {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 32px;
	height: 32px;
	border-radius: 50%;
	background: #1f1f1f;
	color: #b9b9b9;
	text-decoration: none;
	flex: 0 0 auto;
	transition: color .18s ease, background-color .18s ease, transform .18s ease;
}
.zxd-social__item:hover,
.zxd-social__item:focus-visible {
	background: #111;
	color: #fff;
	transform: translateY(-1px);
	text-decoration: none;
}
.zxd-social__item:focus-visible {
	outline: 2px solid var(--brand, #0b5fff);
	outline-offset: 2px;
}
.zxd-social__item svg { width: 16px; height: 16px; display: block; }
.zxd-social__item--facebook:hover  { color: #1877f2; }
.zxd-social__item--instagram:hover { color: #e1306c; }
.zxd-social__item--youtube:hover   { color: #ff0000; }
.zxd-social__item--tiktok:hover    { color: #25f4ee; }
.zxd-social__item--linkedin:hover  { color: #0a66c2; }

/* ---- 桌面端隐藏汉堡按钮（main.js 注入，margin-left 已改为仅移动端生效）---- */
.nav-toggle { display: none; margin-left: 0; }

/* ================= 响应式：逐级让位 ================= */

/* 1400 以下：收窄间距与字号 */
@media (max-width: 1400px) {
	.header-inner { gap: 18px; }
	.nav { gap: 16px; }
	.nav a { font-size: .88rem; }
}

/* 1240 以下：进一步压缩 */
@media (max-width: 1240px) {
	.header-inner { gap: 14px; }
	.nav { gap: 13px; }
	.nav a { font-size: .84rem; }
	.zxd-social { gap: 6px; padding-left: 10px; }
	.zxd-social__item { width: 30px; height: 30px; }
	.zxd-social__item svg { width: 15px; height: 15px; }
}

/* 1150 以下：隐藏 Insights 与 Controllers（次要入口） */
@media (max-width: 1150px) {
	.nav a[href*="/blog/"],
	.nav a[href*="/collections/raid-controllers/"] { display: none; }
	.nav { gap: 14px; }
	.nav a { font-size: .85rem; }
}

/* 980 以下：再隐藏 Storage 与 Networking */
@media (max-width: 980px) {
	.nav a[href*="/collections/enterprise-hard-drives/"],
	.nav a[href*="/collections/network-adapters/"] { display: none; }
	.header-inner { gap: 12px; }
}

/* 900 以下：移动端，导航整体收起（汉堡按钮由 main.js 注入并靠右） */
@media (max-width: 900px) {
	.nav {
		display: none;
		position: absolute;
		top: 66px;
		left: 0;
		right: 0;
		background: #fff;
		border-bottom: 1px solid var(--line);
		padding: 16px 24px;
		flex-direction: column;
		align-items: flex-start;
		gap: 14px;
		box-shadow: 0 8px 20px rgba(0, 0, 0, .06);
	}
	.header-inner.nav-open .nav { display: flex; }
	.header-inner { gap: 12px; }
	.brand small { display: none; }
	.nav-toggle {
		display: flex;
		margin-left: auto;
		width: 40px;
		height: 40px;
		border: 1px solid var(--line);
		background: #fff;
		border-radius: 8px;
		cursor: pointer;
		padding: 11px 9px;
		flex-direction: column;
		justify-content: space-between;
		flex: 0 0 auto;
	}
	.nav-toggle span {
		display: block;
		height: 2px;
		background: var(--ink);
		border-radius: 2px;
	}
	.zxd-social { margin-left: auto; padding-left: 0; }
}

/* 420 以下：图标再收一档 */
@media (max-width: 420px) {
	.zxd-social { gap: 5px; }
	.zxd-social__item { width: 28px; height: 28px; }
	.zxd-social__item svg { width: 14px; height: 14px; }
}
/* ======================================================================
   ZXD_HEADER_FIT_V4 (2026-11-12 21:40) — 按【容器宽度】而非视口宽度排版
   ----------------------------------------------------------------------
   真正的约束：.wrap { max-width:1200px; padding:0 24px } → 内容可用宽 1152px
   之前的内容总宽：brand 227 + nav 826 + social 124 + 2×gap 24 = 1225px → 超 73px
   → nav 被压缩（flex-shrink:1）而内部 .cta-wa 不收缩 → 溢出压住社交图标

   本版做法：桌面端把总宽压回 1152px 以内（靠缩字号与间距），
             并让 nav 保持 flex-shrink:1（可压缩）但内容不溢出——
             空间实在不够时由下面的断点隐藏次要菜单项。
   ====================================================================== */

.header-inner {
	display: flex;
	align-items: center;
	gap: 18px;
	min-height: 66px;
	height: auto;
	padding-block: 10px;
	flex-wrap: nowrap;
}

.brand {
	flex: 0 0 auto;
	white-space: nowrap;
	gap: 10px;
}

.nav {
	display: flex;
	align-items: center;
	gap: 17px;
	flex: 0 1 auto;          /* 允许压缩，但内容不溢出（见下方 .nav a / .cta-wa） */
	flex-wrap: nowrap;
	margin-left: 0;
	min-width: 0;
}
.nav a {
	font-size: .87rem;
	white-space: nowrap;
	flex: 0 0 auto;          /* 链接本身不压缩 → 内容总宽真实可算 */
}
.cta-wa {
	flex: 0 0 auto;
	font-size: .86rem;
	padding: 8px 13px;
}

.zxd-social {
	flex: 0 0 auto;
	margin-left: auto;
	padding-left: 0;
	gap: 6px;
}
.zxd-social__item {
	width: 30px;
	height: 30px;
}
.zxd-social__item svg {
	width: 15px;
	height: 15px;
}

/* 空间仍不够时：逐级隐藏次要入口（阈值按视口宽度，
   因为 .wrap 的 1200 上限 + 视口大于 1200 时内容区恒为 1152） */
@media (max-width: 1400px) {
	.nav { gap: 14px; }
	.nav a { font-size: .84rem; }
	.header-inner { gap: 14px; }
}

@media (max-width: 1240px) {
	.nav { gap: 12px; }
	.nav a { font-size: .81rem; }
	.header-inner { gap: 12px; }
	.zxd-social { gap: 5px; }
	.zxd-social__item { width: 28px; height: 28px; }
	.zxd-social__item svg { width: 14px; height: 14px; }
}

@media (max-width: 1150px) {
	.nav a[href*="/blog/"],
	.nav a[href*="/collections/raid-controllers/"] { display: none; }
	.nav { gap: 13px; }
}

@media (max-width: 980px) {
	.nav a[href*="/collections/enterprise-hard-drives/"],
	.nav a[href*="/collections/network-adapters/"] { display: none; }
	.header-inner { gap: 10px; }
}

@media (max-width: 900px) {
	.nav {
		display: none;
		position: absolute;
		top: 66px;
		left: 0;
		right: 0;
		background: #fff;
		border-bottom: 1px solid var(--line);
		padding: 16px 24px;
		flex-direction: column;
		align-items: flex-start;
		gap: 14px;
		box-shadow: 0 8px 20px rgba(0, 0, 0, .06);
	}
	.header-inner.nav-open .nav { display: flex; }
	.brand small { display: none; }
	.zxd-social { margin-left: auto; }
}

@media (max-width: 420px) {
	.zxd-social { gap: 4px; }
	.zxd-social__item { width: 26px; height: 26px; }
	.zxd-social__item svg { width: 13px; height: 13px; }
}