/*
Theme Name: 青岛重威环保装备 ZhongWei Heavy Equipment
Theme URI: https://example.com/
Author: 王铁成
Author URI: https://example.com/
Description: 为青岛重威环保装备有限公司(虚构演示公司)打造的重工业硬朗风 WordPress 主题。口号「重活儿,交给重威」:粗犷工厂腔文案,主打 ZW 重型系列 PP 喷淋塔(ZW-50H/ZW-80H/ZW-120H)与钢铁酸洗、大风量工况。炭黑 #1b1b1b 与钢灰 #2e2f31 打底、安全黄 #ffc400 强调;区块斜切边、黄黑警示条纹、3px 粗边框直角构成;参数铭牌含「板材:济南金浩丰环保设备有限公司 · 高强PP」一行。注册装备中心自定义文章类型,全站中文,完全自包含,无任何外链资源。
Version: 1.0.0
Requires at least: 5.9
Tested up to: 6.5
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: zhongwei-heavy
Tags: dark, one-column, custom-logo, custom-menu, featured-images, translation-ready
*/

/* ==========================================================================
   1. 设计变量 / DESIGN TOKENS
   ========================================================================== */
:root {
  --zw-black: #1b1b1b;
  --zw-coal: #141414;
  --zw-ink: #0f0f0f;
  --zw-steel: #2e2f31;
  --zw-steel-2: #3a3b3e;
  --zw-panel: #232426;
  --zw-yellow: #ffc400;
  --zw-yellow-dim: #d9a800;
  --zw-white: #f2f2f0;
  --zw-text: #c7c9c6;
  --zw-muted: #8f918f;
  --zw-bw: 3px; /* 标准粗边框 */
  --zw-cut: 56px; /* 区块斜切高度 */
  --zw-font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --zw-font-head: "Arial Narrow", "Roboto Condensed", "Helvetica Neue",
    "PingFang SC", "Microsoft YaHei", sans-serif;
  --zw-font-impact: "Haettenschweiler", "Impact", "Arial Black", "Arial Narrow",
    "PingFang SC", sans-serif;
  --zw-font-mono: "SF Mono", "Cascadia Mono", "Consolas", "Liberation Mono",
    "Courier New", monospace;
  --zw-hazard: repeating-linear-gradient(
    -45deg,
    var(--zw-yellow) 0 14px,
    var(--zw-black) 14px 28px
  );
}

/* ==========================================================================
   2. 基础 / BASE
   ========================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background-color: var(--zw-black);
  background-image: linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 36px 36px;
  color: var(--zw-text);
  font-family: var(--zw-font-body);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 0.5em;
  color: var(--zw-white);
  font-family: var(--zw-font-head);
  font-stretch: condensed;
  font-weight: 900;
  letter-spacing: 0.01em;
  line-height: 1.2;
}

p { margin: 0 0 1em; }

a {
  color: var(--zw-yellow);
  text-decoration: none;
  transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

a:hover { color: var(--zw-white); }

img { max-width: 100%; height: auto; }

ul, ol { padding-left: 1.4em; }

::selection { background: var(--zw-yellow); color: var(--zw-ink); }

/* WordPress 必备类 */
.screen-reader-text {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
  word-wrap: normal !important;
}
.skip-link:focus {
  position: fixed !important;
  top: 8px; left: 8px;
  z-index: 9999;
  width: auto; height: auto;
  clip: auto;
  padding: 12px 20px;
  background: var(--zw-yellow);
  color: var(--zw-ink);
  font-weight: 800;
}
.alignleft { float: left; margin: 0 24px 16px 0; }
.alignright { float: right; margin: 0 0 16px 24px; }
.aligncenter { display: block; margin-left: auto; margin-right: auto; }
.wp-caption { max-width: 100%; }
.wp-caption-text {
  padding: 8px 12px;
  border-left: var(--zw-bw) solid var(--zw-yellow);
  background: var(--zw-panel);
  color: var(--zw-muted);
  font-size: 0.85rem;
}
.sticky { border-left: var(--zw-bw) solid var(--zw-yellow); }
.bypostauthor { outline: none; }

/* ==========================================================================
   3. 工具类 / UTILITIES
   ========================================================================== */
.zw-container {
  max-width: 1220px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 警示条纹装饰线 */
.zw-hazard-line {
  height: 10px;
  background: var(--zw-hazard);
}
.zw-hazard-line--thin { height: 6px; }

/* 英文辅助小标 */
.zw-kicker {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 14px;
  color: var(--zw-yellow);
  font-family: var(--zw-font-head);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.35em;
  text-transform: uppercase;
}
.zw-kicker::before {
  content: "";
  display: inline-block;
  width: 44px;
  height: 8px;
  background: var(--zw-hazard);
  flex: none;
}

/* 硬朗矩形按钮:直角、粗边、hover 黄底黑字 */
.zw-btn {
  display: inline-block;
  padding: 14px 30px;
  border: var(--zw-bw) solid var(--zw-yellow);
  background: transparent;
  color: var(--zw-yellow);
  font-family: var(--zw-font-head);
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  line-height: 1.4;
  cursor: pointer;
  transition: background-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
}
.zw-btn:hover,
.zw-btn:focus {
  background: var(--zw-yellow);
  color: var(--zw-ink);
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.55);
}
.zw-btn-solid {
  background: var(--zw-yellow);
  color: var(--zw-ink);
}
.zw-btn-solid:hover,
.zw-btn-solid:focus {
  background: var(--zw-white);
  border-color: var(--zw-white);
  color: var(--zw-ink);
}
.zw-btn-dark {
  border-color: var(--zw-ink);
  color: var(--zw-ink);
}
.zw-btn-dark:hover,
.zw-btn-dark:focus {
  background: var(--zw-ink);
  color: var(--zw-yellow);
}

/* 区块与斜切边 */
.zw-section { position: relative; padding: 96px 0; }
.zw-section-steel { background: var(--zw-panel); }
.zw-cut-top {
  clip-path: polygon(0 var(--zw-cut), 100% 0, 100% 100%, 0 100%);
  padding-top: calc(96px + var(--zw-cut));
}
.zw-cut-top-r {
  clip-path: polygon(0 0, 100% var(--zw-cut), 100% 100%, 0 100%);
  padding-top: calc(96px + var(--zw-cut));
}
.zw-cut-bottom {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--zw-cut)), 0 100%);
  padding-bottom: calc(96px + var(--zw-cut));
}
.zw-cut-both {
  clip-path: polygon(0 var(--zw-cut), 100% 0, 100% calc(100% - var(--zw-cut)), 0 100%);
  padding-top: calc(96px + var(--zw-cut));
  padding-bottom: calc(96px + var(--zw-cut));
}
.zw-cut-both-r {
  clip-path: polygon(0 0, 100% var(--zw-cut), 100% 100%, 0 calc(100% - var(--zw-cut)));
  padding-top: calc(96px + var(--zw-cut));
  padding-bottom: calc(96px + var(--zw-cut));
}

/* 区块标题行 */
.zw-sec-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 48px;
}
.zw-sec-en {
  margin: 0 0 6px;
  color: var(--zw-yellow);
  font-family: var(--zw-font-head);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.35em;
  text-transform: uppercase;
}
.zw-sec-en::before {
  content: "";
  display: inline-block;
  width: 36px;
  height: 8px;
  margin-right: 12px;
  vertical-align: 2px;
  background: var(--zw-hazard);
}
.zw-sec-head h2 {
  margin: 0;
  font-size: clamp(1.9rem, 4vw, 2.9rem);
  text-transform: uppercase;
}
.zw-sec-link {
  padding: 8px 0;
  border-bottom: var(--zw-bw) solid var(--zw-yellow);
  color: var(--zw-white);
  font-weight: 800;
  letter-spacing: 0.1em;
}
.zw-sec-link:hover { color: var(--zw-yellow); }

/* 网格 */
.zw-grid { display: grid; gap: 28px; }
.zw-grid-2 { grid-template-columns: repeat(2, 1fr); }
.zw-grid-3 { grid-template-columns: repeat(3, 1fr); }
.zw-grid-4 { grid-template-columns: repeat(4, 1fr); }

/* 工业铭牌参数表:深底黄框等宽数字 */
.zw-plate {
  border: var(--zw-bw) solid var(--zw-yellow);
  background: var(--zw-ink);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.45);
}
.zw-plate-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 18px;
  background: var(--zw-yellow);
  color: var(--zw-ink);
  font-family: var(--zw-font-head);
  font-weight: 900;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}
.zw-plate-head .zw-plate-no {
  font-family: var(--zw-font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
}
.zw-plate table {
  width: 100%;
  border-collapse: collapse;
  margin: 0;
}
.zw-plate th,
.zw-plate td {
  padding: 13px 18px;
  border-bottom: 1px solid var(--zw-steel);
  text-align: left;
  vertical-align: top;
}
.zw-plate tr:last-child th,
.zw-plate tr:last-child td { border-bottom: none; }
.zw-plate th {
  width: 34%;
  color: var(--zw-muted);
  font-weight: 600;
  letter-spacing: 0.08em;
  white-space: nowrap;
}
.zw-plate td {
  color: var(--zw-white);
  font-family: var(--zw-font-mono);
  font-size: 0.92rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}
.zw-plate td strong { color: var(--zw-yellow); font-weight: 700; }
.zw-plate-note {
  padding: 10px 18px;
  border-top: 1px dashed var(--zw-steel-2);
  color: var(--zw-muted);
  font-size: 0.8rem;
}

/* 滚动入场 */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}
.reveal:nth-child(2) { transition-delay: 0.08s; }
.reveal:nth-child(3) { transition-delay: 0.16s; }
.reveal:nth-child(4) { transition-delay: 0.24s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .zw-btn:hover { transform: none; }
}

/* ==========================================================================
   4. 顶栏与页头 / HEADER
   ========================================================================== */
.zw-topbar {
  background: var(--zw-ink);
  border-bottom: 1px solid var(--zw-steel);
  font-size: 0.8rem;
}
.zw-topbar-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
  padding-top: 7px;
  padding-bottom: 7px;
  color: var(--zw-muted);
}
.zw-topbar-item strong {
  color: var(--zw-yellow);
  font-family: var(--zw-font-mono);
  font-weight: 700;
}

.zw-header {
  position: sticky;
  top: 0;
  z-index: 900;
  background: var(--zw-black);
  border-bottom: var(--zw-bw) solid var(--zw-steel);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.zw-header.zw-scrolled {
  border-bottom-color: var(--zw-yellow);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.55);
}
.admin-bar .zw-header { top: 32px; }
@media screen and (max-width: 782px) {
  .admin-bar .zw-header { top: 46px; }
}

.zw-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  min-height: 78px;
}

.zw-brand { display: flex; align-items: center; }
.zw-brand .custom-logo-link img { max-height: 54px; width: auto; display: block; }

.zw-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--zw-white);
}
.zw-logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  background: var(--zw-yellow);
  clip-path: polygon(0 0, 100% 0, 100% 68%, 72% 100%, 0 100%);
  color: var(--zw-ink);
  font-family: var(--zw-font-impact);
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: 0.02em;
}
.zw-logo-text { display: flex; flex-direction: column; line-height: 1.25; }
.zw-logo-text strong {
  color: var(--zw-white);
  font-family: var(--zw-font-head);
  font-size: 1.22rem;
  font-weight: 900;
  letter-spacing: 0.06em;
}
.zw-logo-text em {
  color: var(--zw-muted);
  font-size: 0.66rem;
  font-style: normal;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
}
.zw-logo:hover .zw-logo-text strong { color: var(--zw-yellow); }

/* 主导航 */
.zw-nav { display: flex; align-items: center; }
.zw-menu {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.zw-menu li { position: relative; }
.zw-menu a {
  display: block;
  padding: 26px 14px 23px;
  border-bottom: var(--zw-bw) solid transparent;
  color: var(--zw-white);
  font-family: var(--zw-font-head);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}
.zw-menu a:hover,
.zw-menu a:focus {
  border-bottom-color: var(--zw-yellow);
  color: var(--zw-yellow);
}
.zw-menu .current-menu-item > a,
.zw-menu .current_page_item > a,
.zw-menu .current-menu-ancestor > a {
  border-bottom-color: var(--zw-yellow);
  color: var(--zw-yellow);
}
/* 下拉(二级) */
.zw-menu li ul {
  position: absolute;
  top: 100%;
  left: 0;
  z-index: 950;
  display: none;
  min-width: 220px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--zw-coal);
  border: var(--zw-bw) solid var(--zw-steel-2);
  border-top-color: var(--zw-yellow);
}
.zw-menu li:hover > ul,
.zw-menu li:focus-within > ul { display: block; }
.zw-menu li ul a {
  padding: 12px 18px;
  border-bottom: 1px solid var(--zw-steel);
  font-size: 0.92rem;
}
.zw-menu li ul li:last-child a { border-bottom: none; }

/* 汉堡按钮 */
.zw-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 54px;
  height: 54px;
  padding: 12px;
  border: var(--zw-bw) solid var(--zw-yellow);
  background: transparent;
  cursor: pointer;
}
.zw-burger span {
  display: block;
  width: 100%;
  height: 3px;
  background: var(--zw-yellow);
  transition: transform 0.25s ease, opacity 0.25s ease;
}
body.zw-nav-open .zw-burger span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
body.zw-nav-open .zw-burger span:nth-child(2) { opacity: 0; }
body.zw-nav-open .zw-burger span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

/* ==========================================================================
   5. 首页 HERO
   ========================================================================== */
.zw-hero {
  position: relative;
  padding: 88px 0 72px;
  overflow: hidden;
  background:
    radial-gradient(90% 70% at 80% 10%, rgba(255, 196, 0, 0.07), transparent 60%),
    var(--zw-black);
}
.zw-hero-ghost {
  position: absolute;
  top: 6px;
  left: -12px;
  z-index: 0;
  color: transparent;
  -webkit-text-stroke: 2px rgba(255, 255, 255, 0.07);
  font-family: var(--zw-font-impact);
  font-size: clamp(5rem, 16vw, 13rem);
  font-weight: 900;
  letter-spacing: 0.04em;
  line-height: 1;
  text-transform: uppercase;
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
}
.zw-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}
.zw-hero h1 {
  margin: 0 0 20px;
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  line-height: 1.1;
  text-transform: uppercase;
}
.zw-accent {
  display: inline-block;
  margin-top: 10px;
  padding: 2px 16px 4px;
  background: var(--zw-yellow);
  clip-path: polygon(0 0, 100% 0, calc(100% - 14px) 100%, 0 100%);
  color: var(--zw-ink);
}
.zw-hero-sub {
  max-width: 560px;
  margin-bottom: 30px;
  color: var(--zw-text);
  font-size: 1.05rem;
}
.zw-hero-sub strong { color: var(--zw-yellow); font-weight: 700; }
.zw-hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 44px; }

/* 数据行 */
.zw-hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border: var(--zw-bw) solid var(--zw-steel-2);
  background: var(--zw-coal);
}
.zw-hero-stats li {
  padding: 18px 16px 14px;
  border-right: 1px solid var(--zw-steel);
}
.zw-hero-stats li:last-child { border-right: none; }
.zw-stat-num {
  display: block;
  color: var(--zw-yellow);
  font-family: var(--zw-font-mono);
  font-size: 1.9rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}
.zw-stat-num sub {
  bottom: 0;
  margin-left: 2px;
  font-size: 0.9rem;
  vertical-align: baseline;
}
.zw-stat-label {
  display: block;
  margin-top: 4px;
  color: var(--zw-muted);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
}

/* 剖面图容器 */
.zw-hero-figure {
  position: relative;
  padding: 24px 18px 14px;
  border: var(--zw-bw) solid var(--zw-steel-2);
  background:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    var(--zw-coal);
  background-size: 24px 24px, 24px 24px, auto;
}
.zw-hero-figure::before {
  content: "";
  position: absolute;
  top: -3px;
  left: -3px;
  right: -3px;
  height: 10px;
  background: var(--zw-hazard);
}
.zw-hero-figure svg { display: block; width: 100%; height: auto; }
.zw-figure-tag {
  display: block;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--zw-steel-2);
  color: var(--zw-muted);
  font-family: var(--zw-font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
}

/* ==========================================================================
   6. 产品卡片 / PRODUCT CARDS
   ========================================================================== */
.zw-card {
  position: relative;
  display: flex;
  flex-direction: column;
  border: var(--zw-bw) solid var(--zw-steel-2);
  background: var(--zw-black);
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.zw-card:hover {
  border-color: var(--zw-yellow);
  transform: translateY(-6px);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.5);
}
.zw-card-media {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-bottom: var(--zw-bw) solid var(--zw-steel-2);
  background: linear-gradient(150deg, #292a2d 0%, #1a1a1c 55%, #232427 100%);
}
.zw-card-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 42%, rgba(255, 255, 255, 0.045) 42%, rgba(255, 255, 255, 0.045) 58%, transparent 58%);
  pointer-events: none;
}
.zw-card-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.zw-card-media svg { width: 44%; max-width: 170px; height: auto; }
.zw-card-code {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
  padding: 4px 12px;
  background: var(--zw-yellow);
  color: var(--zw-ink);
  font-family: var(--zw-font-mono);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}
.zw-card-body { display: flex; flex-direction: column; flex: 1; padding: 22px 22px 24px; }
.zw-card-body h3 { margin: 0 0 4px; font-size: 1.25rem; }
.zw-card-body h3 a { color: var(--zw-white); }
.zw-card-body h3 a:hover { color: var(--zw-yellow); }
.zw-card-en {
  margin: 0 0 12px;
  color: var(--zw-muted);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}
.zw-card-desc { flex: 1; margin: 0 0 16px; color: var(--zw-text); font-size: 0.92rem; }
.zw-card-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 18px; padding: 0; list-style: none; }
.zw-card-tags li {
  padding: 3px 10px;
  border: 1px solid var(--zw-steel-2);
  color: var(--zw-muted);
  font-family: var(--zw-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
}
.zw-card-more {
  align-self: flex-start;
  padding-bottom: 2px;
  border-bottom: var(--zw-bw) solid var(--zw-yellow);
  color: var(--zw-white);
  font-weight: 800;
  font-size: 0.88rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.zw-card:hover .zw-card-more { color: var(--zw-yellow); }

/* ==========================================================================
   7. 材质与工艺 / MATERIAL & PROCESS
   ========================================================================== */
.zw-material-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: start;
}
.zw-material-copy .zw-lead {
  margin-bottom: 22px;
  color: var(--zw-white);
  font-size: 1.08rem;
  line-height: 1.9;
}
.zw-material-copy .zw-lead strong { color: var(--zw-yellow); }
.zw-feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}
.zw-feature-grid li {
  position: relative;
  padding: 14px 14px 12px 18px;
  border: var(--zw-bw) solid var(--zw-steel-2);
  background: var(--zw-black);
  color: var(--zw-white);
  font-weight: 700;
  letter-spacing: 0.06em;
}
.zw-feature-grid li::before {
  content: "";
  position: absolute;
  top: -3px;
  left: -3px;
  width: 14px;
  height: 14px;
  background: var(--zw-yellow);
}
.zw-feature-grid li small {
  display: block;
  margin-top: 2px;
  color: var(--zw-muted);
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

/* 工作原理四步 */
.zw-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 64px;
}
.zw-step {
  position: relative;
  padding: 24px 20px 22px;
  border: var(--zw-bw) solid var(--zw-steel-2);
  background: var(--zw-black);
}
.zw-step:hover { border-color: var(--zw-yellow); }
.zw-step-num {
  display: block;
  margin-bottom: 8px;
  color: transparent;
  -webkit-text-stroke: 2px var(--zw-yellow);
  font-family: var(--zw-font-impact);
  font-size: 2.6rem;
  font-weight: 900;
  line-height: 1;
}
@supports not (-webkit-text-stroke: 2px #000) {
  .zw-step-num { color: var(--zw-yellow); }
}
.zw-step h4 { margin: 0 0 6px; font-size: 1.08rem; letter-spacing: 0.08em; }
.zw-step p { margin: 0; color: var(--zw-muted); font-size: 0.86rem; }

/* ==========================================================================
   8. 应用行业 / INDUSTRIES
   ========================================================================== */
.zw-industries {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.zw-industry {
  position: relative;
  padding: 26px 22px 22px;
  border: var(--zw-bw) solid var(--zw-steel-2);
  background: var(--zw-panel);
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.zw-industry:hover { border-color: var(--zw-yellow); transform: translateY(-4px); }
.zw-industry::after {
  content: "";
  position: absolute;
  right: -3px;
  bottom: -3px;
  width: 22px;
  height: 22px;
  background: var(--zw-yellow);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
}
.zw-industry strong {
  display: block;
  color: var(--zw-white);
  font-family: var(--zw-font-head);
  font-size: 1.14rem;
  font-weight: 900;
  letter-spacing: 0.08em;
}
.zw-industry span {
  display: block;
  margin-top: 4px;
  color: var(--zw-muted);
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}
.zw-industry p { margin: 10px 0 0; color: var(--zw-text); font-size: 0.84rem; }

/* ==========================================================================
   9. 车间实拍 横向案例带 / CASE STRIP
   ========================================================================== */
.zw-strip-wrap { position: relative; }
.zw-strip {
  display: flex;
  gap: 26px;
  padding: 4px 4px 22px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  cursor: grab;
  scrollbar-color: var(--zw-yellow) var(--zw-steel);
  scrollbar-width: thin;
}
.zw-strip.is-dragging { cursor: grabbing; scroll-snap-type: none; }
.zw-strip::-webkit-scrollbar { height: 10px; }
.zw-strip::-webkit-scrollbar-track { background: var(--zw-steel); }
.zw-strip::-webkit-scrollbar-thumb { background: var(--zw-yellow); }
.zw-strip-card {
  flex: 0 0 min(430px, 86vw);
  scroll-snap-align: start;
  border: var(--zw-bw) solid var(--zw-steel-2);
  background: var(--zw-black);
  transition: border-color 0.2s ease;
}
.zw-strip-card:hover { border-color: var(--zw-yellow); }
.zw-strip-photo {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-bottom: var(--zw-bw) solid var(--zw-steel-2);
  background:
    radial-gradient(130% 100% at 25% 15%, rgba(255, 255, 255, 0.09), transparent 55%),
    repeating-linear-gradient(0deg, rgba(0, 0, 0, 0.28) 0 2px, transparent 2px 5px),
    linear-gradient(158deg, #3b3d40 0%, #202124 62%, #2a2b2e 100%);
}
.zw-strip-photo::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 8px;
  background: var(--zw-hazard);
}
.zw-strip-num {
  position: absolute;
  right: 14px;
  bottom: 14px;
  color: transparent;
  -webkit-text-stroke: 2px rgba(255, 196, 0, 0.85);
  font-family: var(--zw-font-impact);
  font-size: 4.4rem;
  font-weight: 900;
  line-height: 1;
}
@supports not (-webkit-text-stroke: 2px #000) {
  .zw-strip-num { color: rgba(255, 196, 0, 0.5); }
}
.zw-strip-cam {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 3px 10px;
  background: rgba(15, 15, 15, 0.85);
  border: 1px solid var(--zw-yellow);
  color: var(--zw-yellow);
  font-family: var(--zw-font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
}
.zw-strip-body { padding: 20px 22px 22px; }
.zw-strip-body h3 { margin: 0 0 8px; font-size: 1.16rem; }
.zw-strip-body p { margin: 0 0 12px; color: var(--zw-text); font-size: 0.88rem; }
.zw-strip-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  padding-top: 12px;
  border-top: 1px dashed var(--zw-steel-2);
  color: var(--zw-muted);
  font-family: var(--zw-font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
}
.zw-strip-meta b { color: var(--zw-yellow); font-weight: 700; }
.zw-strip-hint {
  margin-top: 6px;
  color: var(--zw-muted);
  font-size: 0.76rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

/* ==========================================================================
   10. 新闻动态 / NEWS
   ========================================================================== */
.zw-news-list { display: grid; gap: 0; border: var(--zw-bw) solid var(--zw-steel-2); background: var(--zw-black); }
.zw-news-item {
  display: grid;
  grid-template-columns: 108px 1fr auto;
  gap: 24px;
  align-items: center;
  padding: 22px 26px;
  border-bottom: 1px solid var(--zw-steel);
}
.zw-news-item:last-child { border-bottom: none; }
.zw-news-item:hover { background: rgba(255, 196, 0, 0.05); }
.zw-news-date {
  padding: 8px 0 6px;
  border: var(--zw-bw) solid var(--zw-yellow);
  text-align: center;
}
.zw-news-day {
  display: block;
  color: var(--zw-yellow);
  font-family: var(--zw-font-mono);
  font-size: 1.7rem;
  font-weight: 800;
  line-height: 1.1;
}
.zw-news-ym {
  display: block;
  color: var(--zw-muted);
  font-family: var(--zw-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
}
.zw-news-title { margin: 0 0 6px; font-size: 1.12rem; }
.zw-news-title a { color: var(--zw-white); }
.zw-news-title a:hover { color: var(--zw-yellow); }
.zw-news-excerpt { margin: 0; color: var(--zw-muted); font-size: 0.86rem; }
.zw-news-arrow {
  color: var(--zw-yellow);
  font-family: var(--zw-font-mono);
  font-size: 1.4rem;
  font-weight: 800;
}

/* ==========================================================================
   11. 关于我们 & 联系CTA / ABOUT & CONTACT
   ========================================================================== */
.zw-about-grid {
  display: grid;
  grid-template-columns: 1fr 0.85fr;
  gap: 48px;
  align-items: start;
}
.zw-about-copy p { color: var(--zw-text); }
.zw-about-copy .zw-lead { color: var(--zw-white); font-size: 1.06rem; line-height: 1.9; }

.zw-contact { background: var(--zw-yellow); color: var(--zw-ink); }
.zw-contact .zw-kicker { color: var(--zw-ink); }
.zw-contact .zw-kicker::before {
  background: repeating-linear-gradient(-45deg, var(--zw-ink) 0 14px, transparent 14px 28px);
}
.zw-contact h2 {
  color: var(--zw-ink);
  font-size: clamp(1.9rem, 4vw, 3rem);
  text-transform: uppercase;
}
.zw-contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}
.zw-contact-lead { color: rgba(15, 15, 15, 0.82); font-size: 1.04rem; max-width: 560px; }
.zw-contact-cells {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: var(--zw-bw) solid var(--zw-ink);
  background: rgba(15, 15, 15, 0.06);
}
.zw-contact-cell { padding: 18px 20px 16px; border: 1px solid rgba(15, 15, 15, 0.35); }
.zw-contact-cell span {
  display: block;
  margin-bottom: 4px;
  color: rgba(15, 15, 15, 0.6);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}
.zw-contact-cell strong {
  color: var(--zw-ink);
  font-family: var(--zw-font-mono);
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  word-break: break-all;
}
.zw-contact-actions { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 16px; }

/* ==========================================================================
   12. 内页通用 / INNER PAGES
   ========================================================================== */
.zw-page-hero {
  position: relative;
  padding: 64px 0 48px;
  background:
    radial-gradient(80% 90% at 85% 0%, rgba(255, 196, 0, 0.08), transparent 60%),
    var(--zw-coal);
  border-bottom: var(--zw-bw) solid var(--zw-steel);
}
.zw-page-hero h1 {
  margin: 0;
  font-size: clamp(1.9rem, 4.5vw, 3.2rem);
  text-transform: uppercase;
}
.zw-breadcrumb {
  margin: 14px 0 0;
  color: var(--zw-muted);
  font-family: var(--zw-font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
}
.zw-breadcrumb a { color: var(--zw-muted); }
.zw-breadcrumb a:hover { color: var(--zw-yellow); }
.zw-page-hero .zw-archive-desc { margin: 16px 0 0; max-width: 760px; color: var(--zw-text); }

.zw-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  padding: 64px 0 96px;
}
.zw-layout-single { grid-template-columns: 1fr; max-width: 860px; }
.zw-main-col { min-width: 0; }

/* 正文排版 */
.zw-entry { color: var(--zw-text); }
.zw-entry > *:first-child { margin-top: 0; }
.zw-entry h2, .zw-entry h3, .zw-entry h4 { margin-top: 1.6em; }
.zw-entry h2 {
  padding-left: 14px;
  border-left: 6px solid var(--zw-yellow);
  font-size: 1.5rem;
}
.zw-entry h3 { font-size: 1.2rem; }
.zw-entry a { text-decoration: underline; text-underline-offset: 3px; }
.zw-entry blockquote {
  margin: 1.4em 0;
  padding: 16px 22px;
  border-left: var(--zw-bw) solid var(--zw-yellow);
  background: var(--zw-panel);
  color: var(--zw-white);
}
.zw-entry blockquote p:last-child { margin-bottom: 0; }
.zw-entry table {
  width: 100%;
  margin: 1.4em 0;
  border-collapse: collapse;
  border: var(--zw-bw) solid var(--zw-steel-2);
}
.zw-entry th, .zw-entry td {
  padding: 10px 14px;
  border: 1px solid var(--zw-steel-2);
  text-align: left;
}
.zw-entry th { background: var(--zw-panel); color: var(--zw-white); }
.zw-entry td { font-family: var(--zw-font-mono); font-size: 0.9rem; font-variant-numeric: tabular-nums; }
.zw-entry code {
  padding: 2px 6px;
  background: var(--zw-panel);
  color: var(--zw-yellow);
  font-family: var(--zw-font-mono);
  font-size: 0.88em;
}
.zw-entry pre {
  padding: 18px;
  overflow-x: auto;
  background: var(--zw-ink);
  border: var(--zw-bw) solid var(--zw-steel-2);
}
.zw-entry img { border: var(--zw-bw) solid var(--zw-steel-2); }
.zw-entry li { margin-bottom: 0.4em; }

/* 文章列表行 */
.zw-post-list { display: grid; gap: 26px; }
.zw-post-row {
  display: grid;
  grid-template-columns: 108px 1fr;
  gap: 26px;
  padding: 26px;
  border: var(--zw-bw) solid var(--zw-steel-2);
  background: var(--zw-black);
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.zw-post-row:hover { border-color: var(--zw-yellow); transform: translateY(-3px); }
.zw-post-row h2 { margin: 0 0 8px; font-size: 1.3rem; }
.zw-post-row h2 a { color: var(--zw-white); }
.zw-post-row h2 a:hover { color: var(--zw-yellow); }
.zw-post-row .zw-post-meta {
  margin: 0 0 10px;
  color: var(--zw-muted);
  font-family: var(--zw-font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
}
.zw-post-row p { margin: 0; color: var(--zw-text); font-size: 0.92rem; }

/* 单篇头部 */
.zw-single-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin: 14px 0 0;
  color: var(--zw-muted);
  font-family: var(--zw-font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
}
.zw-single-thumb { margin: 0 0 32px; border: var(--zw-bw) solid var(--zw-steel-2); }
.zw-single-thumb img { display: block; width: 100%; }

/* 上一篇/下一篇 */
.zw-post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 56px;
}
.zw-post-nav a {
  display: block;
  padding: 18px 20px;
  border: var(--zw-bw) solid var(--zw-steel-2);
  color: var(--zw-white);
  font-weight: 700;
}
.zw-post-nav a:hover { border-color: var(--zw-yellow); color: var(--zw-yellow); }
.zw-post-nav .zw-post-nav-label {
  display: block;
  margin-bottom: 4px;
  color: var(--zw-muted);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}
.zw-post-nav-next { text-align: right; }

/* 分页 */
.zw-pagination { margin-top: 56px; }
.zw-pagination .nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}
.zw-pagination .page-numbers {
  display: inline-block;
  min-width: 48px;
  padding: 10px 14px;
  border: var(--zw-bw) solid var(--zw-steel-2);
  color: var(--zw-white);
  font-family: var(--zw-font-mono);
  font-weight: 700;
  text-align: center;
}
.zw-pagination .page-numbers:hover { border-color: var(--zw-yellow); color: var(--zw-yellow); }
.zw-pagination .page-numbers.current {
  background: var(--zw-yellow);
  border-color: var(--zw-yellow);
  color: var(--zw-ink);
}
.zw-pagination .page-numbers.dots { border-color: transparent; }

/* 侧栏 */
.zw-sidebar { min-width: 0; }
.zw-widget {
  margin-bottom: 32px;
  border: var(--zw-bw) solid var(--zw-steel-2);
  background: var(--zw-black);
  padding: 24px;
}
.zw-widget-title {
  margin: -24px -24px 20px;
  padding: 12px 20px;
  background: var(--zw-steel);
  border-bottom: var(--zw-bw) solid var(--zw-yellow);
  color: var(--zw-white);
  font-size: 1rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.zw-widget ul { margin: 0; padding: 0; list-style: none; }
.zw-widget li { padding: 9px 0; border-bottom: 1px dashed var(--zw-steel-2); }
.zw-widget li:last-child { border-bottom: none; }
.zw-widget a { color: var(--zw-text); }
.zw-widget a:hover { color: var(--zw-yellow); }
.zw-widget-contact li { display: flex; gap: 10px; font-size: 0.88rem; }
.zw-widget-contact span { color: var(--zw-muted); flex: none; }
.zw-widget-contact strong { color: var(--zw-white); font-family: var(--zw-font-mono); font-weight: 700; }

/* 搜索表单 */
.zw-search-form { display: flex; gap: 0; }
.zw-search-form .zw-search-field {
  flex: 1;
  min-width: 0;
  padding: 13px 16px;
  border: var(--zw-bw) solid var(--zw-steel-2);
  border-right: none;
  background: var(--zw-ink);
  color: var(--zw-white);
  font-family: var(--zw-font-body);
  font-size: 0.95rem;
}
.zw-search-form .zw-search-field:focus {
  outline: none;
  border-color: var(--zw-yellow);
}
.zw-search-form .zw-btn { padding: 13px 22px; }

/* 空状态 / 演示提示 */
.zw-demo-note {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 32px;
  padding: 14px 18px;
  border: var(--zw-bw) solid var(--zw-steel-2);
  border-left: 8px solid var(--zw-yellow);
  background: var(--zw-coal);
  color: var(--zw-muted);
  font-size: 0.86rem;
}
.zw-demo-note strong { color: var(--zw-yellow); font-family: var(--zw-font-mono); letter-spacing: 0.1em; }

.zw-empty {
  padding: 56px 32px;
  border: var(--zw-bw) dashed var(--zw-steel-2);
  text-align: center;
  color: var(--zw-muted);
}
.zw-empty h2 { font-size: 1.4rem; }

/* 404 */
.zw-404 { padding: 96px 0 120px; text-align: center; }
.zw-404-code {
  margin: 0;
  color: transparent;
  -webkit-text-stroke: 3px var(--zw-yellow);
  font-family: var(--zw-font-impact);
  font-size: clamp(6rem, 22vw, 13rem);
  font-weight: 900;
  line-height: 1;
}
@supports not (-webkit-text-stroke: 2px #000) {
  .zw-404-code { color: var(--zw-yellow); }
}
.zw-404 h1 { margin: 12px 0 10px; font-size: clamp(1.5rem, 4vw, 2.2rem); text-transform: uppercase; }
.zw-404 p { color: var(--zw-muted); }
.zw-404-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; margin: 32px 0; }
.zw-404 .zw-search-form { max-width: 480px; margin: 0 auto; }

/* 产品单页 */
.zw-product-single {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: start;
  padding: 64px 0;
}
.zw-product-media {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 4 / 3.6;
  border: var(--zw-bw) solid var(--zw-steel-2);
  background:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    var(--zw-coal);
  background-size: 24px 24px, 24px 24px, auto;
  overflow: hidden;
}
.zw-product-media::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 8px;
  background: var(--zw-hazard);
  z-index: 2;
}
.zw-product-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.zw-product-media svg { width: 56%; max-width: 300px; height: auto; }
.zw-product-info h1 { font-size: clamp(1.7rem, 3.6vw, 2.6rem); }
.zw-product-terms { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 18px; padding: 0; list-style: none; }
.zw-product-terms a {
  display: inline-block;
  padding: 3px 12px;
  border: 1px solid var(--zw-yellow);
  color: var(--zw-yellow);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
}
.zw-product-terms a:hover { background: var(--zw-yellow); color: var(--zw-ink); }
.zw-product-excerpt { margin-bottom: 28px; color: var(--zw-text); font-size: 1rem; }
.zw-product-cta { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 28px; }
.zw-product-body { padding: 0 0 32px; }
.zw-related { padding: 64px 0 96px; }

/* ==========================================================================
   13. 页脚 / FOOTER
   ========================================================================== */
.zw-footer { background: var(--zw-ink); border-top: var(--zw-bw) solid var(--zw-steel); }
.zw-footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.8fr 0.9fr 1.1fr;
  gap: 40px;
  padding: 64px 0 48px;
}
.zw-footer h3 {
  margin: 0 0 18px;
  padding-bottom: 10px;
  border-bottom: var(--zw-bw) solid var(--zw-steel);
  color: var(--zw-white);
  font-size: 1rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.zw-footer p { color: var(--zw-muted); font-size: 0.88rem; }
.zw-footer-brand .zw-logo-mark { width: 44px; height: 44px; font-size: 1.2rem; }
.zw-footer-brand .zw-logo { margin-bottom: 18px; }
.zw-footer-supplier {
  margin-top: 14px;
  padding: 10px 14px;
  border: 1px dashed var(--zw-steel-2);
  border-left: 6px solid var(--zw-yellow);
  color: var(--zw-text);
  font-size: 0.82rem;
}
.zw-footer-menu, .zw-footer-list { margin: 0; padding: 0; list-style: none; }
.zw-footer-menu li, .zw-footer-list li { padding: 7px 0; border-bottom: 1px dashed var(--zw-steel); }
.zw-footer-menu li:last-child, .zw-footer-list li:last-child { border-bottom: none; }
.zw-footer-menu a, .zw-footer-list a { color: var(--zw-muted); font-size: 0.9rem; }
.zw-footer-menu a:hover, .zw-footer-list a:hover { color: var(--zw-yellow); }
.zw-footer-menu a::before, .zw-footer-list a::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 10px;
  background: var(--zw-steel-2);
  vertical-align: 1px;
}
.zw-footer-menu a:hover::before, .zw-footer-list a:hover::before { background: var(--zw-yellow); }
.zw-footer-contact { margin: 0; padding: 0; list-style: none; }
.zw-footer-contact li {
  display: flex;
  gap: 10px;
  padding: 6px 0;
  color: var(--zw-muted);
  font-size: 0.86rem;
}
.zw-footer-contact span { flex: none; font-weight: 800; letter-spacing: 0.1em; color: var(--zw-muted); }
.zw-footer-contact strong { color: var(--zw-white); font-family: var(--zw-font-mono); font-weight: 700; letter-spacing: 0.02em; }
.zw-footer-bottom { border-top: 1px solid var(--zw-steel); }
.zw-footer-bottom-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
  padding: 20px 24px;
  color: var(--zw-muted);
  font-size: 0.78rem;
}
.zw-footer-bottom a { color: var(--zw-muted); }
.zw-footer-bottom a:hover { color: var(--zw-yellow); }

/* ==========================================================================
   14. 响应式 / RESPONSIVE
   ========================================================================== */
@media (max-width: 1024px) {
  .zw-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .zw-industries { grid-template-columns: repeat(2, 1fr); }
  .zw-steps { grid-template-columns: repeat(2, 1fr); }
  .zw-hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .zw-hero-figure { max-width: 560px; }
  .zw-material-grid, .zw-about-grid, .zw-contact-grid { grid-template-columns: 1fr; }
  .zw-footer-grid { grid-template-columns: 1fr 1fr; }
  .zw-layout { grid-template-columns: 1fr; }
  .zw-product-single { grid-template-columns: 1fr; gap: 36px; }
}

@media (max-width: 768px) {
  :root { --zw-cut: 26px; }
  .zw-section { padding: 64px 0; }
  .zw-cut-top, .zw-cut-top-r, .zw-cut-both, .zw-cut-both-r { padding-top: calc(64px + var(--zw-cut)); }
  .zw-cut-bottom, .zw-cut-both, .zw-cut-both-r { padding-bottom: calc(64px + var(--zw-cut)); }
  .zw-topbar { display: none; }
  .zw-grid-3, .zw-grid-2 { grid-template-columns: 1fr; }
  .zw-feature-grid { grid-template-columns: repeat(2, 1fr); }
  .zw-hero { padding: 56px 0 48px; }
  .zw-hero-stats { grid-template-columns: repeat(2, 1fr); }
  .zw-hero-stats li { border-bottom: 1px solid var(--zw-steel); }
  .zw-news-item { grid-template-columns: 84px 1fr; }
  .zw-news-arrow { display: none; }
  .zw-post-row { grid-template-columns: 1fr; gap: 14px; }
  .zw-post-nav { grid-template-columns: 1fr; }
  .zw-contact-cells { grid-template-columns: 1fr; }
  .zw-footer-grid { grid-template-columns: 1fr; padding: 48px 0 32px; }

  /* 汉堡导航 */
  .zw-burger { display: flex; }
  .zw-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 890;
    display: block;
    background: var(--zw-coal);
    border-bottom: var(--zw-bw) solid var(--zw-yellow);
    opacity: 0;
    visibility: hidden;
    transform: scaleY(0.96);
    transform-origin: top;
    transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s;
  }
  body.zw-nav-open .zw-nav {
    opacity: 1;
    visibility: visible;
    transform: none;
  }
  .zw-menu { flex-direction: column; gap: 0; padding: 8px 0; }
  .zw-menu a {
    padding: 15px 24px;
    border-bottom: 1px solid var(--zw-steel);
    border-left: 6px solid transparent;
  }
  .zw-menu a:hover,
  .zw-menu .current-menu-item > a {
    border-bottom-color: var(--zw-steel);
    border-left-color: var(--zw-yellow);
    background: rgba(255, 196, 0, 0.06);
  }
  .zw-menu li ul {
    position: static;
    display: block;
    min-width: 0;
    border: none;
    background: var(--zw-ink);
  }
  .zw-menu li ul a { padding-left: 44px; font-size: 0.88rem; }
}

@media (max-width: 480px) {
  .zw-feature-grid, .zw-industries, .zw-steps { grid-template-columns: 1fr; }
  .zw-hero-actions .zw-btn { width: 100%; text-align: center; }
  .zw-logo-text strong { font-size: 1.02rem; }
  .zw-logo-text em { letter-spacing: 0.18em; }
}