@charset "utf-8";
/* ==========================================================================
   ATLAS INDUSTRIAL — main.css
   浅色极简编辑风 · 工业自动化 / 电气传动 / 智能配电
   骨架：暖纸底色 + 墨黑 + 松绿点缀 + 发丝线栅格 + 等宽标签 + 衬线斜体数字
   命名空间：z-（与旧模板零复用，整站重构）
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root {
  --paper: #F4F2EB;
  --paper-2: #EBE8DF;
  --paper-3: #E3DFD3;
  --white: #FFFFFF;
  --ink: #17180F;
  --ink-2: #2E3028;
  --muted: #767870;
  --muted-2: #9A9C93;
  --line: #D4D0C3;
  --line-2: #E3DFD4;
  --accent: #0E5B45;
  --accent-2: #0A3E2F;
  --accent-soft: #E4EDE8;
  --danger: #B4472B;

  --ff-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --ff-serif: Georgia, "Times New Roman", "Songti SC", "Source Han Serif SC", serif;
  --ff-mono: "IBM Plex Mono", "JetBrains Mono", "SFMono-Regular", Consolas,
    "Liberation Mono", "Courier New", monospace;

  --wrap: 1360px;
  --gut: clamp(18px, 4.4vw, 56px);
  --sp-sec: clamp(64px, 8.5vw, 132px);
  --head-h: 78px;

  --ease: cubic-bezier(.22, .61, .36, 1);
  --t: .38s var(--ease);

  --btn-h: 52px;
  --radius: 2px;
}

/* ---------- 2. 基础重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--ff-sans);
  font-size: 16px;
  line-height: 1.72;
  letter-spacing: .002em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
body.z-lock { overflow: hidden; }
img, svg, video, iframe { max-width: 100%; vertical-align: middle; }
img { height: auto; border: 0; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3, h4, h5, p, figure, blockquote, ul, ol, dl { margin: 0; }
ul, ol { padding: 0; list-style: none; }
table { border-collapse: collapse; width: 100%; }
hr { border: 0; height: 1px; background: var(--line); margin: 0; }
::selection { background: var(--accent); color: #fff; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.z-skip {
  position: fixed; top: 8px; left: 8px; z-index: 999;
  padding: 10px 18px; background: var(--ink); color: #fff;
  font-size: 13px; transform: translateY(-160%); transition: transform .2s;
}
.z-skip:focus { transform: none; }
.z-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- 3. 版心与栅格 ---------- */
.z-wrap {
  width: 100%; max-width: var(--wrap); margin: 0 auto;
  padding-left: var(--gut); padding-right: var(--gut);
}
.z-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: clamp(16px, 2vw, 28px); }

/* ---------- 4. 排版原子 ---------- */
.z-mono {
  font-family: var(--ff-mono); font-size: 11px; font-weight: 400;
  letter-spacing: .14em; text-transform: uppercase; line-height: 1.6;
  color: var(--muted);
}
.z-serif { font-family: var(--ff-serif); font-style: italic; font-weight: 400; }
.z-h1 { font-size: clamp(38px, 5.2vw, 72px); line-height: 1.08; letter-spacing: -.035em; font-weight: 600; margin: 0; text-wrap: balance; }
.z-h2 { font-size: clamp(27px, 3.4vw, 50px); line-height: 1.14; letter-spacing: -.03em; font-weight: 600; margin: 0; text-wrap: balance; }
.z-h3 { font-size: clamp(19px, 1.5vw, 24px); line-height: 1.3; letter-spacing: -.02em; font-weight: 600; }
.z-lead { font-size: clamp(15px, 1.12vw, 17.5px); line-height: 1.85; color: var(--muted); }
.z-ink { color: var(--ink); }
.z-accent { color: var(--accent); }

.z-rule { display: flex; align-items: center; gap: 16px; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.z-rule-k { flex: none; }
.z-rule-l { flex: 1 1 auto; height: 1px; background: var(--line); }
.z-rule-v { flex: none; }

/* ---------- 5. 按钮与文字链 ---------- */
.z-btn {
  position: relative; display: inline-flex; align-items: center; justify-content: center;
  gap: 12px; height: var(--btn-h); padding: 0 26px;
  border: 1px solid var(--ink); border-radius: var(--radius);
  background: transparent; color: var(--ink);
  font-size: 13.5px; font-weight: 600; letter-spacing: .04em;
  transition: background var(--t), color var(--t), border-color var(--t);
  white-space: nowrap;
}
.z-btn svg { width: 22px; height: 10px; transition: transform var(--t); }
.z-btn:hover { background: var(--ink); color: var(--paper); }
.z-btn:hover svg { transform: translateX(4px); }
.z-btn--solid { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.z-btn--solid:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.z-btn--accent { background: var(--accent); border-color: var(--accent); color: #fff; }
.z-btn--accent:hover { background: var(--accent-2); border-color: var(--accent-2); color: #fff; }
.z-btn--ghost { border-color: var(--line); color: var(--ink-2); }
.z-btn--ghost:hover { border-color: var(--ink); background: transparent; color: var(--ink); }
.z-btn--sm { height: 42px; padding: 0 18px; font-size: 12.5px; }
.z-btn--block { width: 100%; }

.z-link {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12.5px; font-weight: 600; letter-spacing: .06em;
  padding-bottom: 6px; border-bottom: 1px solid var(--ink);
  transition: color var(--t), border-color var(--t), gap var(--t);
}
.z-link svg { width: 20px; height: 9px; }
.z-link:hover { color: var(--accent); border-color: var(--accent); gap: 16px; }

/* ---------- 6. 顶部工具条 ---------- */
.z-util { background: var(--ink); color: #CFD2C7; font-size: 12px; letter-spacing: .02em; }
.z-util-in { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 38px; }
.z-util-l { display: flex; align-items: center; gap: 10px; min-width: 0; }
.z-util-l .z-dot { width: 5px; height: 5px; border-radius: 50%; background: #7BE3B4; flex: none; box-shadow: 0 0 0 3px rgba(123, 227, 180, .18); }
.z-util-k {
  font-family: var(--ff-mono); font-size: 10.5px; letter-spacing: .16em;
  text-transform: uppercase; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  color: #B9BDB1;
}
.z-util-r { display: flex; align-items: center; gap: 14px; flex: none; }
.z-util-r a { display: inline-flex; align-items: center; gap: 7px; color: #DDE0D5; transition: color var(--t); white-space: nowrap; }
.z-util-r a:hover { color: #fff; }
.z-util-r svg { width: 13px; height: 13px; opacity: .7; flex: none; }
.z-util-sep { width: 1px; height: 12px; background: rgba(255, 255, 255, .18); }

.z-lang { position: relative; }
.z-lang-btn {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--ff-mono); font-size: 10.5px; letter-spacing: .14em;
  text-transform: uppercase; color: #DDE0D5; transition: color var(--t);
}
.z-lang-btn:hover { color: #fff; }
.z-lang-btn .zz { width: 6px; height: 6px; border-right: 1px solid currentColor; border-bottom: 1px solid currentColor; transform: translateY(-2px) rotate(45deg); transition: transform var(--t); }
.z-lang.is-open .z-lang-btn .zz { transform: translateY(1px) rotate(-135deg); }
.z-lang-menu {
  position: absolute; right: 0; top: calc(100% + 12px); z-index: 120;
  min-width: 168px; background: var(--white); color: var(--ink);
  border: 1px solid var(--line); box-shadow: 0 24px 48px -28px rgba(0, 0, 0, .45);
  padding: 6px; opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity .22s var(--ease), transform .22s var(--ease), visibility .22s;
}
.z-lang.is-open .z-lang-menu { opacity: 1; visibility: visible; transform: none; }
.z-lang-menu a { display: flex; align-items: center; gap: 10px; padding: 9px 12px; font-size: 13px; color: var(--ink); transition: background .2s; }
.z-lang-menu a:hover, .z-lang-menu a:focus-visible { background: var(--accent-soft); color: var(--accent-2); }
.z-lang-menu a.is-on { color: var(--accent); font-weight: 600; }
.z-lang-menu img { width: 18px; height: 12px; object-fit: cover; border: 1px solid var(--line-2); }

/* ---------- 7. 主导航 ---------- */
.z-head {
  position: sticky; top: 0; z-index: 90;
  background: rgba(244, 242, 235, .94);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow var(--t), background var(--t);
}
.z-head.is-stuck { box-shadow: 0 18px 40px -34px rgba(0, 0, 0, .55); background: rgba(255, 255, 255, .96); }
.z-head-in { display: flex; align-items: center; gap: clamp(14px, 2vw, 38px); min-height: var(--head-h); }
.z-brand { display: inline-flex; align-items: center; gap: 12px; flex: none; }
.z-brand img { height: clamp(28px, 2.8vw, 36px); width: auto; max-width: 180px; object-fit: contain; }

.z-nav { flex: 1 1 auto; min-width: 0; }
.z-nav-ul { display: flex; align-items: center; gap: clamp(0px, .9vw, 12px); justify-content: flex-end; }
.z-nav-li { position: relative; }
.z-nav-li > a {
  position: relative; display: inline-flex; align-items: center; gap: 6px;
  padding: 26px 10px; font-size: 14px; font-weight: 500; letter-spacing: .01em;
  color: var(--ink-2); transition: color var(--t); white-space: nowrap;
}
.z-nav-li > a::after {
  content: ""; position: absolute; left: 10px; right: 10px; bottom: 18px; height: 1px;
  background: var(--accent); transform: scaleX(0); transform-origin: left;
  transition: transform .34s var(--ease);
}
.z-nav-li:hover > a, .z-nav-li.is-on > a { color: var(--accent); }
.z-nav-li:hover > a::after, .z-nav-li.is-on > a::after { transform: scaleX(1); }
.z-caret { width: 5px; height: 5px; border-right: 1px solid currentColor; border-bottom: 1px solid currentColor; transform: translateY(-2px) rotate(45deg); opacity: .5; }

.z-mega {
  position: absolute; left: 50%; top: 100%; transform: translate(calc(-50% + var(--mx, 0px)), 8px);
  width: min(1060px, calc(100vw - 32px));
  background: var(--white); border: 1px solid var(--line);
  box-shadow: 0 40px 80px -60px rgba(0, 0, 0, .6);
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: opacity .26s var(--ease), transform .26s var(--ease), visibility .26s;
}
.z-nav-li:hover .z-mega, .z-nav-li:focus-within .z-mega { opacity: 1; visibility: visible; transform: translate(calc(-50% + var(--mx, 0px)), 0); pointer-events: auto; }
.z-mega-in { display: grid; grid-template-columns: minmax(0, 1fr) 290px; }
.z-mega-main { padding: 32px 36px; }
.z-mega-k { display: block; margin-bottom: 16px; }
.z-mega-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 32px; }
.z-mega-list > li { border-top: 1px solid var(--line-2); }
.z-mega-list > li:first-child, .z-mega-list > li:nth-child(2) { border-top: 0; }
.z-mega-list > li > a { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; padding: 11px 0; font-size: 14.5px; font-weight: 500; transition: color .2s; }
.z-mega-list > li > a em { font-family: var(--ff-mono); font-style: normal; font-size: 10px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 50%; }
.z-mega-list > li > a:hover { color: var(--accent); }
.z-mega-sub { padding: 0 0 10px; display: flex; flex-wrap: wrap; gap: 4px 14px; }
.z-mega-sub a { font-size: 12.5px; color: var(--muted); transition: color .2s; }
.z-mega-sub a:hover { color: var(--accent); }
.z-mega-side { border-left: 1px solid var(--line); padding: 32px 26px; background: var(--paper); display: flex; flex-direction: column; gap: 14px; }
.z-mega-side figcaption { font-size: 12.5px; color: var(--muted); }
.z-mega-thumb { display: block; aspect-ratio: 4/3; overflow: hidden; background: var(--paper-2); }
.z-mega-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.z-mega-thumb:hover img { transform: scale(1.05); }

.z-head-act { display: flex; align-items: center; gap: 8px; flex: none; margin-left: auto; }
.z-icon-btn { width: 42px; height: 42px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid transparent; border-radius: 50%; color: var(--ink-2); transition: background var(--t), color var(--t), border-color var(--t); }
.z-icon-btn:hover { background: var(--paper-2); border-color: var(--line); }
.z-icon-btn svg { width: 19px; height: 19px; }

.z-burger { display: none; width: 44px; height: 44px; align-items: center; justify-content: center; }
.z-burger i { display: block; width: 22px; height: 1px; background: var(--ink); position: relative; transition: transform .3s var(--ease), background .2s; }
.z-burger i::before, .z-burger i::after { content: ""; position: absolute; left: 0; width: 22px; height: 1px; background: var(--ink); transition: transform .3s var(--ease), opacity .2s; }
.z-burger i::before { top: -7px; }
.z-burger i::after { top: 7px; }
.z-burger.is-on i { background: transparent; }
.z-burger.is-on i::before { transform: translateY(7px) rotate(45deg); }
.z-burger.is-on i::after { transform: translateY(-7px) rotate(-45deg); }

/* 导航溢出时自动收进抽屉 */
.z-head.nav-hide .z-nav { display: none; }
.z-head.nav-hide .z-burger { display: inline-flex; }

/* 视频弹层 */
.z-video-box {
  position: fixed; inset: 0; z-index: 130; display: none; align-items: center; justify-content: center;
  background: rgba(15, 16, 10, .86); padding: 4vw;
}
.z-video-box.is-on { display: flex; }
.z-video-in { position: relative; width: min(980px, 100%); background: #000; }
.z-video-in iframe { display: block; width: 100%; aspect-ratio: 16/9; border: 0; }
.z-video-x {
  position: absolute; right: -8px; top: -44px; color: #fff;
  display: inline-flex; align-items: center; gap: 8px; font-size: 12px; letter-spacing: .1em;
}
.z-video-x svg { width: 16px; height: 16px; }

/* ---------- 8. 移动抽屉 ---------- */
.z-mask { position: fixed; inset: 0; z-index: 95; background: rgba(23, 24, 15, .5); opacity: 0; visibility: hidden; transition: opacity .3s, visibility .3s; backdrop-filter: blur(2px); }
.z-mask.is-on { opacity: 1; visibility: visible; }
.z-drawer {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 96;
  width: min(420px, 90vw); background: var(--paper);
  display: flex; flex-direction: column;
  transform: translateX(100%); transition: transform .42s var(--ease);
  overflow-y: auto; overscroll-behavior: contain;
}
.z-drawer.is-on { transform: none; }
.z-drawer-hd { display: flex; align-items: center; justify-content: space-between; padding: 18px var(--gut); border-bottom: 1px solid var(--line); flex: none; }
.z-drawer-hd img { height: 30px; width: auto; }
.z-drawer-x { width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center; }
.z-drawer-x svg { width: 18px; height: 18px; }
.z-dr-nav { padding: 8px var(--gut) 0; }
.z-dr-item { border-bottom: 1px solid var(--line-2); }
.z-dr-item > a, .z-dr-item > button { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 16px 0; font-size: 16px; font-weight: 500; text-align: left; }
.z-dr-item .z-n { font-family: var(--ff-mono); font-size: 10px; color: var(--muted-2); margin-right: 12px; }
.z-dr-item .z-plus { position: relative; width: 12px; height: 12px; flex: none; }
.z-dr-item .z-plus::before, .z-dr-item .z-plus::after { content: ""; position: absolute; background: var(--muted); transition: transform .3s var(--ease); }
.z-dr-item .z-plus::before { left: 0; top: 5.5px; width: 12px; height: 1px; }
.z-dr-item .z-plus::after { left: 5.5px; top: 0; width: 1px; height: 12px; }
.z-dr-item.is-open .z-plus::after { transform: scaleY(0); }
.z-dr-sub { display: none; padding: 0 0 16px 24px; }
.z-dr-item.is-open .z-dr-sub { display: block; }
.z-dr-sub > a { display: block; padding: 8px 0; font-size: 14px; color: var(--ink-2); }
.z-dr-sub2 { display: flex; flex-wrap: wrap; gap: 6px 16px; padding: 2px 0 8px 12px; }
.z-dr-sub2 a { font-size: 12.5px; color: var(--muted); padding: 2px 0; }
.z-drawer-ft { margin-top: auto; padding: 22px var(--gut) 30px; border-top: 1px solid var(--line); display: grid; gap: 14px; }
.z-dr-lang { display: flex; flex-wrap: wrap; gap: 8px; }
.z-dr-lang a { display: inline-flex; align-items: center; gap: 7px; padding: 7px 12px; border: 1px solid var(--line); font-size: 12.5px; }
.z-dr-lang a.is-on { border-color: var(--accent); color: var(--accent); }
.z-dr-lang img { width: 16px; height: 11px; object-fit: cover; }
.z-dr-meta { font-size: 13px; color: var(--muted); line-height: 1.9; }
.z-dr-meta b { color: var(--ink); font-family: var(--ff-mono); font-size: 14px; letter-spacing: .02em; }

/* ---------- 9. 搜索浮层 ---------- */
.z-search { position: fixed; inset: 0; z-index: 110; background: var(--paper); display: flex; flex-direction: column; opacity: 0; visibility: hidden; transition: opacity .3s, visibility .3s; }
.z-search.is-on { opacity: 1; visibility: visible; }
.z-search-hd { display: flex; justify-content: space-between; align-items: center; padding: 22px var(--gut); border-bottom: 1px solid var(--line); }
.z-search-x { display: inline-flex; align-items: center; gap: 9px; font-size: 12.5px; letter-spacing: .08em; }
.z-search-x svg { width: 15px; height: 15px; }
.z-search-body { flex: 1 1 auto; display: flex; align-items: center; }
.z-search-form { width: 100%; max-width: 980px; margin: 0 auto; padding: 0 var(--gut); }
.z-search-form > .z-mono { display: block; margin-bottom: 22px; }
.z-search-row { display: flex; align-items: center; gap: 18px; border-bottom: 1px solid var(--ink); padding-bottom: 16px; transition: border-color .24s; }
.z-search-row:focus-within { border-bottom-color: var(--accent); }
.z-search-row input { flex: 1 1 auto; min-width: 0; border: 0; background: transparent; font-size: clamp(22px, 4vw, 44px); letter-spacing: -.02em; padding: 6px 0; }
.z-search-row input:focus, .z-search-row input:focus-visible { outline: 0; }
.z-search-row input::placeholder { color: var(--muted-2); }
.z-search-row button { width: 54px; height: 54px; display: inline-flex; align-items: center; justify-content: center; border-radius: 50%; background: var(--ink); color: var(--paper); flex: none; transition: background var(--t); }
.z-search-row button:hover { background: var(--accent); }
.z-search-row button svg { width: 21px; height: 21px; }
.z-search-hot { margin-top: 26px; display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.z-search-hot .z-mono { margin-right: 6px; }
.z-search-hot a { padding: 6px 13px; border: 1px solid var(--line); font-size: 12.5px; color: var(--ink-2); transition: all .22s; }
.z-search-hot a:hover { border-color: var(--ink); background: var(--ink); color: var(--paper); }

/* ---------- 10. 首页首屏 ---------- */
.z-hero { padding: clamp(30px, 4.4vw, 58px) 0 clamp(28px, 3.6vw, 48px); }
.z-hero-in { display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr); gap: clamp(26px, 4.4vw, 68px); align-items: center; }
.z-hero-l { min-width: 0; }
.z-hero-top { display: flex; align-items: center; gap: 14px; margin-bottom: clamp(18px, 2.4vw, 30px); }
.z-hero-top .z-linek { flex: 1 1 auto; height: 1px; background: var(--line); max-width: 110px; }
.z-hero h1, .z-hero .z-h1 { margin: clamp(14px, 1.8vw, 24px) 0 0; }
.z-hero h1 em, .z-hero .z-h1 em { display: block; text-wrap: balance; font-family: var(--ff-serif); font-style: italic; font-weight: 400; letter-spacing: -.02em; color: var(--accent); }
.z-hero-lead { margin-top: clamp(16px, 2vw, 26px); max-width: 46ch; }
.z-hero-acts { display: flex; flex-wrap: wrap; gap: 12px; margin-top: clamp(22px, 2.8vw, 36px); }
.z-hero-r { position: relative; min-width: 0; }
.z-fig { position: relative; background: var(--paper-2); overflow: hidden; }
.z-fig img { width: 100%; height: 100%; object-fit: cover; display: block; }
.z-hero-fig { aspect-ratio: 5/5.6; }
.z-hero-fig::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(25, 20, 10, .04), rgba(25, 20, 10, .22)); pointer-events: none; }
.z-hero-fig-tag { position: absolute; left: 20px; top: 20px; z-index: 2; background: rgba(255, 255, 255, .92); padding: 7px 12px; font-family: var(--ff-mono); font-size: 10px; letter-spacing: .14em; text-transform: uppercase; color: var(--ink); backdrop-filter: blur(6px); }
.z-hero-fig-cap { position: absolute; left: 0; right: 0; bottom: 0; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 16px 20px; background: linear-gradient(0deg, rgba(10, 12, 8, .62), rgba(10, 12, 8, 0)); color: #fff; font-size: 12px; letter-spacing: .02em; }
.z-hero-fig-cap span:last-child { font-family: var(--ff-mono); font-size: 10.5px; letter-spacing: .14em; opacity: .8; }

/* 首屏图片轮播 */
.z-hero-slides { position: absolute; inset: 0; z-index: 0; touch-action: pan-y; }
.z-hero-slide { position: absolute; inset: 0; opacity: 0; transition: opacity .55s ease; }
.z-hero-slide.is-on { opacity: 1; }
.z-hero-fig:not(.is-slider) .z-hero-slide:first-child { opacity: 1; }
.z-hero-fig:not(.is-slider) .z-hero-nav { display: none; }
.z-hero-fig.is-slider .z-hero-slides { cursor: grab; }
.z-hero-fig.is-slider .z-hero-slides:active { cursor: grabbing; }
.z-hero-fig.is-slider img { user-select: none; -webkit-user-select: none; }
.z-hero-nav { position: absolute; top: 50%; z-index: 3; width: 38px; height: 38px; margin-top: -19px; padding: 0; display: inline-flex; align-items: center; justify-content: center; border: 1px solid rgba(255, 255, 255, .5); background: rgba(12, 16, 10, .2); color: #fff; backdrop-filter: blur(6px); cursor: pointer; opacity: .72; transition: opacity .24s, background .24s, color .24s, border-color .24s; }
.z-hero-nav:hover, .z-hero-nav:focus-visible, .z-hero-fig.is-slider:hover .z-hero-nav { opacity: 1; }
.z-hero-nav--prev { left: 14px; }
.z-hero-nav--next { right: 14px; }
.z-hero-nav:hover { background: #fff; border-color: #fff; color: var(--ink); }
.z-hero-nav svg { width: 15px; height: 15px; }

.z-spec { margin-top: clamp(32px, 4.2vw, 58px); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.z-spec > div { padding: 22px 26px; border-left: 1px solid var(--line); }
.z-spec > div:first-child { border-left: 0; padding-left: 0; }
.z-spec b { display: block; font-family: var(--ff-serif); font-style: italic; font-weight: 400; font-size: clamp(26px, 2.6vw, 38px); line-height: 1; letter-spacing: -.02em; color: var(--ink); }
.z-spec b i { font-family: var(--ff-sans); font-style: normal; font-size: 12px; letter-spacing: .04em; color: var(--muted); margin-left: 4px; }
.z-spec span { display: block; margin-top: 9px; font-size: 12.5px; color: var(--muted); letter-spacing: .01em; }

/* ---------- 11. 通用区块 ---------- */
.z-sec { padding: var(--sp-sec) 0; border-top: 1px solid var(--line); }
.z-sec--paper { background: var(--paper-2); }
.z-sec--white { background: var(--white); }
.z-sec--tight { padding: clamp(48px, 6vw, 88px) 0; }
.z-sec-hd { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 20px 32px; margin-bottom: clamp(28px, 3.4vw, 52px); }
.z-sec-hd-l { display: flex; align-items: flex-start; gap: clamp(14px, 2vw, 24px); min-width: 0; }
.z-sec-idx { font-family: var(--ff-serif); font-style: italic; font-size: clamp(13px, 1.1vw, 15px); color: var(--accent); padding-top: 8px; flex: none; letter-spacing: .02em; }
.z-sec-hd h2 { margin: 0 0 10px; }
.z-sec-sub { font-size: 13px; color: var(--muted); letter-spacing: .01em; }
.z-sec-hd .z-link { margin-bottom: 6px; }

/* ---------- 12. 产品体系：索引列表 ---------- */
.z-index { border-top: 1px solid var(--ink); }
.z-index-row { position: relative; display: grid; grid-template-columns: 56px minmax(0, 1fr) minmax(0, .9fr) 40px; align-items: center; gap: 18px; padding: 22px 0; border-bottom: 1px solid var(--line); transition: padding-left .34s var(--ease), color .3s; }
.z-index-row::before { content: ""; position: absolute; left: 0; bottom: -1px; height: 1px; width: 0; background: var(--accent); transition: width .42s var(--ease); }
.z-index-row:hover::before { width: 100%; }
.z-index-row:hover { padding-left: 14px; }
.z-index-n { font-family: var(--ff-mono); font-size: 11px; letter-spacing: .12em; color: var(--muted-2); }
.z-index-t { font-size: clamp(19px, 1.9vw, 27px); font-weight: 600; letter-spacing: -.02em; line-height: 1.25; transition: color .3s; }
.z-index-row:hover .z-index-t { color: var(--accent); }
.z-index-e { font-family: var(--ff-mono); font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted-2); text-align: right; }
.z-index-ar { display: inline-flex; justify-content: flex-end; color: var(--muted); transition: transform .34s var(--ease), color .3s; }
.z-index-ar svg { width: 22px; height: 10px; }
.z-index-row:hover .z-index-ar { transform: translateX(6px); color: var(--accent); }
.z-index-thumb { position: absolute; right: 8%; top: 50%; z-index: 3; width: 250px; aspect-ratio: 4/3; transform: translateY(-50%) scale(.94); opacity: 0; pointer-events: none; overflow: hidden; background: var(--paper-2); box-shadow: 0 30px 60px -40px rgba(0, 0, 0, .6); transition: opacity .3s, transform .4s var(--ease); }
.z-index-thumb img { width: 100%; height: 100%; object-fit: cover; }
.z-index-row:hover .z-index-thumb { opacity: 1; transform: translateY(-50%) scale(1); }
.z-index-row:last-child { border-bottom-color: var(--ink); }

/* ---------- 13. 主推产品：马赛克 ---------- */
.z-mosaic { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: clamp(14px, 1.6vw, 22px); }
.z-pcard { position: relative; display: flex; flex-direction: column; background: var(--white); border: 1px solid var(--line-2); overflow: hidden; transition: border-color .3s; }
.z-pcard:hover { border-color: var(--ink); }
.z-pcard-fig { position: relative; overflow: hidden; background: var(--paper-2); }
.z-pcard-fig img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease), filter .5s; }
.z-pcard:hover .z-pcard-fig img { transform: scale(1.045); }
.z-pcard-sku { position: absolute; left: 12px; top: 12px; z-index: 2; background: rgba(255, 255, 255, .94); padding: 5px 9px; font-family: var(--ff-mono); font-size: 9.5px; letter-spacing: .1em; text-transform: uppercase; }
.z-pcard-body { padding: 18px 20px 20px; display: flex; flex-direction: column; gap: 10px; flex: 1 1 auto; }
.z-pcard-t { font-size: 15.5px; font-weight: 600; line-height: 1.45; letter-spacing: -.01em; }
.z-pcard-t a { transition: color .22s; }
.z-pcard:hover .z-pcard-t a { color: var(--accent); }
.z-pcard-meta { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: auto; padding-top: 12px; border-top: 1px solid var(--line-2); }
.z-pcard-meta span { font-family: var(--ff-mono); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted-2); }
.z-pcard-ar { color: var(--muted); transition: transform .3s var(--ease), color .3s; }
.z-pcard-ar svg { width: 20px; height: 9px; }
.z-pcard:hover .z-pcard-ar { transform: translateX(4px); color: var(--accent); }

.z-mosaic .z-pcard--lead { grid-column: span 6; }
.z-mosaic .z-pcard--lead .z-pcard-fig { aspect-ratio: 4/3; }
.z-mosaic .z-pcard--lead .z-pcard-t { font-size: clamp(19px, 1.7vw, 24px); }
.z-mosaic .z-pcard--half { grid-column: span 3; }
.z-mosaic .z-pcard--half .z-pcard-fig { aspect-ratio: 4/4.4; }
/* 首行两张半卡与左侧大卡同高，用描述文字补齐高度差 */
.z-pcard-d { display: none; }
.z-mosaic > .z-pcard--half:nth-child(2) .z-pcard-d,
.z-mosaic > .z-pcard--half:nth-child(3) .z-pcard-d {
  display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 7; overflow: hidden;
  flex: 1 1 auto; margin: 0; font-size: 13px; line-height: 1.75; color: var(--muted);
}
.z-mosaic-list { grid-column: span 6; display: flex; flex-direction: column; justify-content: space-between; border-top: 1px solid var(--ink); }
.z-mosaic-list a { display: grid; grid-template-columns: 40px minmax(0, 1fr) 20px; align-items: center; gap: 12px; padding: 15px 0; border-bottom: 1px solid var(--line); }
.z-mosaic-list a:last-child { border-bottom: 0; }
.z-mosaic-list .z-n { font-family: var(--ff-mono); font-size: 10px; color: var(--muted-2); letter-spacing: .1em; }
.z-mosaic-list .z-t { font-size: 14px; font-weight: 500; line-height: 1.5; transition: color .22s; }
.z-mosaic-list a:hover .z-t { color: var(--accent); }
.z-mosaic-list .z-a { color: var(--muted-2); display: inline-flex; justify-content: flex-end; }
.z-mosaic-list .z-a svg { width: 18px; height: 8px; }

/* ---------- 14. 数据带 ---------- */
.z-nums { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--ink); }
.z-num { padding: 30px 26px 26px; border-left: 1px solid var(--line); }
.z-num:first-child { border-left: 0; padding-left: 0; }
.z-num b { display: block; font-family: var(--ff-serif); font-style: italic; font-weight: 400; font-size: clamp(38px, 4.6vw, 64px); line-height: 1; letter-spacing: -.03em; }
.z-num b i { font-family: var(--ff-sans); font-style: normal; font-size: 13px; letter-spacing: .02em; color: var(--accent); margin-left: 5px; }
.z-num span { display: block; margin-top: 14px; font-size: 13px; color: var(--muted); line-height: 1.7; }

/* ---------- 15. 能力矩阵 ---------- */
.z-cap { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--ink); }
.z-cap-item { position: relative; padding: 30px 30px 34px 0; border-bottom: 1px solid var(--line); }
.z-cap-item:not(:nth-child(3n+1)) { padding-left: 30px; border-left: 1px solid var(--line); }
.z-cap-n { font-family: var(--ff-serif); font-style: italic; font-size: 13px; color: var(--accent); }
.z-cap-item h3 { margin: 14px 0 10px; font-size: 17px; font-weight: 600; letter-spacing: -.01em; line-height: 1.4; }
.z-cap-item p { font-size: 13.5px; line-height: 1.85; color: var(--muted); }
.z-cap-ico { position: absolute; right: 26px; top: 28px; width: 30px; height: 30px; opacity: .28; }
.z-cap-ico svg { width: 100%; height: 100%; stroke: var(--ink); fill: none; stroke-width: 1.2; }

/* ---------- 16. 分栏叙事 ---------- */
.z-split { display: grid; grid-template-columns: minmax(0, .92fr) minmax(0, 1fr); gap: clamp(26px, 4.6vw, 72px); align-items: center; }
.z-split--rev .z-split-l { order: 2; }
.z-split-fig { position: relative; }
.z-split-fig .z-fig { aspect-ratio: 4/4.6; }
.z-split-cap { position: absolute; left: 0; bottom: 0; right: 0; display: flex; justify-content: space-between; gap: 12px; padding: 14px 18px; background: var(--white); border-top: 1px solid var(--line); font-family: var(--ff-mono); font-size: 10px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.z-quote { margin-top: 26px; padding: 22px 0 22px 24px; border-left: 2px solid var(--accent); font-family: var(--ff-serif); font-style: italic; font-size: clamp(17px, 1.5vw, 21px); line-height: 1.6; color: var(--ink-2); }
.z-mini { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-top: 30px; border-top: 1px solid var(--line); padding-top: 22px; }
.z-mini b { display: block; font-family: var(--ff-serif); font-style: italic; font-weight: 400; font-size: 26px; line-height: 1; }
.z-mini span { display: block; margin-top: 8px; font-size: 12px; color: var(--muted); }

/* ---------- 17. 应用场景 ---------- */
.z-cases { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(14px, 1.8vw, 24px); }
.z-case { position: relative; display: block; overflow: hidden; background: var(--paper-3); }
.z-case-fig { aspect-ratio: 16/11; overflow: hidden; }
.z-case-fig img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(.5) contrast(1.02); transition: transform .8s var(--ease), filter .6s; }
.z-case:hover .z-case-fig img { transform: scale(1.05); filter: none; }
.z-case-body { position: relative; padding: 20px 22px 22px; background: var(--white); border-top: 1px solid var(--line-2); display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.z-case-k { font-family: var(--ff-mono); font-size: 10px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted-2); display: block; margin-bottom: 8px; }
.z-case-t { font-size: 16.5px; font-weight: 600; line-height: 1.45; letter-spacing: -.01em; }
.z-case-d { margin-top: 8px; font-size: 13px; color: var(--muted); line-height: 1.75; }
.z-case-ar { flex: none; width: 34px; height: 34px; border: 1px solid var(--line); border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; color: var(--muted); transition: all .3s; margin-top: 4px; }
.z-case-ar svg { width: 16px; height: 7px; }
.z-case:hover .z-case-ar { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ---------- 18. 认证墙 ---------- */
.z-certs { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.z-cert { border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 22px 18px; display: flex; flex-direction: column; align-items: center; gap: 12px; transition: background .3s; }
.z-cert:hover { background: var(--white); }
.z-cert img { height: 74px; width: auto; max-width: 100%; object-fit: contain; filter: grayscale(1); opacity: .72; transition: filter .4s, opacity .4s; }
.z-cert:hover img { filter: none; opacity: 1; }
.z-cert span { font-size: 11.5px; color: var(--muted); text-align: center; line-height: 1.5; }

/* ---------- 19. 资讯 ---------- */
.z-news { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: clamp(24px, 3.4vw, 54px); }
.z-news-feat { display: flex; flex-direction: column; }
.z-news-feat .z-fig { aspect-ratio: 16/10; }
.z-news-feat .z-mono { display: block; margin: 18px 0 10px; }
.z-news-feat h3 { font-size: clamp(19px, 1.9vw, 26px); line-height: 1.32; letter-spacing: -.02em; font-weight: 600; }
.z-news-feat h3 a:hover { color: var(--accent); }
.z-news-feat p { margin-top: 12px; font-size: 14px; line-height: 1.8; color: var(--muted); }
.z-nlist { border-top: 1px solid var(--ink); }
.z-nrow { display: grid; grid-template-columns: 74px minmax(0, 1fr) 20px; align-items: center; gap: 16px; padding: 17px 0; border-bottom: 1px solid var(--line); }
.z-nrow time { font-family: var(--ff-mono); font-size: 10.5px; letter-spacing: .06em; color: var(--muted-2); }
.z-nrow h3 { font-size: 14.5px; font-weight: 500; line-height: 1.55; transition: color .22s; }
.z-nrow:hover h3 { color: var(--accent); }
.z-nrow .z-a { color: var(--muted-2); display: inline-flex; justify-content: flex-end; }
.z-nrow .z-a svg { width: 18px; height: 8px; }

/* ---------- 20. FAQ ---------- */
.z-faq-wrap { display: grid; grid-template-columns: minmax(0, .62fr) minmax(0, 1fr); gap: clamp(26px, 4.6vw, 68px); align-items: start; }
.z-faq-intro { position: sticky; top: calc(var(--head-h) + 26px); }
.z-faq-intro .z-h2 { margin: 16px 0 18px; }
.z-faq-intro .z-link { margin-top: 24px; }
.z-faq { border-top: 1px solid var(--ink); }
.z-faq-row { border-bottom: 1px solid var(--line); }
.z-faq-q { width: 100%; display: grid; grid-template-columns: 46px minmax(0, 1fr) 24px; align-items: start; gap: 14px; padding: 20px 0; cursor: pointer; text-align: left; }
.z-faq-q .z-qn { font-family: var(--ff-mono); font-size: 10.5px; color: var(--muted-2); letter-spacing: .1em; padding-top: 4px; }
.z-faq-q h3 { font-size: clamp(15px, 1.28vw, 17.5px); font-weight: 600; line-height: 1.55; letter-spacing: -.01em; transition: color .22s; }
.z-faq-row:hover .z-faq-q h3, .z-faq-row.is-open .z-faq-q h3 { color: var(--accent); }
.z-faq-ic { position: relative; width: 14px; height: 14px; margin-top: 5px; justify-self: end; }
.z-faq-ic::before, .z-faq-ic::after { content: ""; position: absolute; background: var(--muted); transition: transform .3s var(--ease), background .2s; }
.z-faq-ic::before { left: 0; top: 6.5px; width: 14px; height: 1px; }
.z-faq-ic::after { left: 6.5px; top: 0; width: 1px; height: 14px; }
.z-faq-row.is-open .z-faq-ic::after { transform: scaleY(0); }
.z-faq-row.is-open .z-faq-ic::before { background: var(--accent); }
.z-faq-a { display: none; padding: 0 40px 24px 60px; font-size: 14px; line-height: 1.9; color: var(--muted); }
.z-faq-a > div > *:first-child { margin-top: 0; }
.z-faq-a > div > *:last-child { margin-bottom: 0; }

/* ---------- 21. 行动区 ---------- */
.z-cta { border-top: 1px solid var(--ink); background: var(--paper-2); padding: clamp(48px, 6.4vw, 92px) 0; }
.z-cta-in { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr); gap: clamp(26px, 4vw, 60px); align-items: end; }
.z-cta h2 { font-size: clamp(26px, 3.2vw, 46px); line-height: 1.16; letter-spacing: -.03em; font-weight: 600; margin: 16px 0 0; }
.z-cta h2 em { font-family: var(--ff-serif); font-style: italic; font-weight: 400; color: var(--accent); }
.z-cta p { margin-top: 18px; max-width: 52ch; font-size: 14.5px; line-height: 1.85; color: var(--muted); }
.z-cta-tel { display: flex; align-items: baseline; gap: 14px; margin-top: 24px; flex-wrap: wrap; }
.z-cta-tel span { font-family: var(--ff-mono); font-size: 10.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.z-cta-tel b { font-family: var(--ff-mono); font-size: clamp(20px, 2vw, 26px); letter-spacing: .01em; }
.z-cta-acts { display: grid; gap: 10px; }

/* ---------- 22. 页脚 ---------- */
.z-foot { background: var(--paper); border-top: 1px solid var(--line); }
.z-foot-top { display: grid; grid-template-columns: minmax(0, 1.1fr) repeat(3, minmax(0, .62fr)); gap: clamp(24px, 3vw, 46px); padding: clamp(46px, 5.2vw, 74px) 0 clamp(32px, 3.8vw, 52px); }
.z-foot-brand img { height: 32px; width: auto; max-width: 180px; object-fit: contain; }
.z-foot-brand p { margin-top: 18px; font-size: 13.5px; line-height: 1.9; color: var(--muted); max-width: 40ch; }
.z-foot-soc { display: flex; gap: 8px; margin-top: 22px; }
.z-foot-soc a { width: 38px; height: 38px; border: 1px solid var(--line); border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; color: var(--ink-2); transition: all .26s; }
.z-foot-soc a:hover { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.z-foot-soc svg { width: 15px; height: 15px; }
.z-foot-col h3 { font-family: var(--ff-mono); font-size: 10.5px; letter-spacing: .16em; text-transform: uppercase; color: var(--muted-2); font-weight: 400; padding-bottom: 13px; border-bottom: 1px solid var(--line); margin-bottom: 14px; }
.z-foot-col li { margin-bottom: 9px; }
.z-foot-col a { font-size: 13.5px; color: var(--ink-2); transition: color .2s; }
.z-foot-col a:hover { color: var(--accent); }
.z-foot-contact li { display: flex; gap: 10px; font-size: 13px; color: var(--muted); line-height: 1.75; margin-bottom: 12px; }
.z-foot-contact svg { width: 14px; height: 14px; flex: none; margin-top: 5px; opacity: .6; }
.z-foot-contact b { font-family: var(--ff-mono); font-size: 14px; color: var(--ink); font-weight: 500; }

.z-wordmark { display: block; padding: 0 0 clamp(16px, 2.2vw, 28px); font-size: clamp(44px, 12vw, 182px); line-height: .84; letter-spacing: -.045em; font-weight: 600; color: transparent; -webkit-text-stroke: 1px var(--line); white-space: nowrap; overflow: hidden; user-select: none; transition: -webkit-text-stroke-color .4s; }
.z-wordmark:hover { -webkit-text-stroke-color: var(--accent); }

.z-foot-links { display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: center; padding: 18px 0; border-top: 1px solid var(--line); }
.z-foot-links .z-mono { margin-right: 4px; }
.z-foot-links a { font-size: 12px; color: var(--muted); transition: color .2s; }
.z-foot-links a:hover { color: var(--ink); }
.z-foot-bot { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; padding: 16px 0 22px; border-top: 1px solid var(--line); font-size: 12px; color: var(--muted-2); }
.z-foot-bot .z-mono { font-size: 10px; letter-spacing: .1em; }
.z-foot-bot a { color: var(--muted); }
.z-foot-bot a:hover { color: var(--ink); }

/* ---------- 23. 浮标 ---------- */
.z-float { position: fixed; right: 18px; bottom: 22px; z-index: 80; display: flex; flex-direction: column; gap: 8px; }
.z-float a, .z-float button { width: 46px; height: 46px; border-radius: 50%; background: var(--white); border: 1px solid var(--line); display: inline-flex; align-items: center; justify-content: center; color: var(--ink-2); box-shadow: 0 16px 30px -22px rgba(0, 0, 0, .55); transition: all .26s; }
.z-float a:hover, .z-float button:hover { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.z-float svg { width: 18px; height: 18px; }
.z-float .z-back { opacity: 0; visibility: hidden; transform: translateY(8px); }
.z-float .z-back.is-on { opacity: 1; visibility: visible; transform: none; }

/* ---------- 24. 滚动揭示 ---------- */
.z-rv { opacity: 0; transform: translateY(20px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.z-rv.is-in { opacity: 1; transform: none; }
.z-rv-d1 { transition-delay: .08s; }
.z-rv-d2 { transition-delay: .16s; }
.z-rv-d3 { transition-delay: .24s; }
@media (prefers-reduced-motion: reduce) {
  .z-rv { opacity: 1 !important; transform: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

/* ---------- 25. 富文本 ---------- */
.rich { font-size: 15.5px; line-height: 1.95; color: var(--ink-2); }
.rich h2, .rich h3, .rich h4 { color: var(--ink); font-weight: 600; letter-spacing: -.02em; margin: 40px 0 14px; line-height: 1.35; }
.rich h2 { font-size: 25px; }
.rich h3 { font-size: 19px; }
.rich h4 { font-size: 16px; }
.rich p { margin: 0 0 18px; }
.rich a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.rich ul, .rich ol { margin: 0 0 20px; }
.rich ul li, .rich ol li { position: relative; padding-left: 20px; margin-bottom: 9px; }
.rich ul li::before { content: ""; position: absolute; left: 0; top: .85em; width: 7px; height: 1px; background: var(--accent); }
.rich ol { counter-reset: zli; }
.rich ol li { counter-increment: zli; }
.rich ol li::before { content: counter(zli, decimal-leading-zero); position: absolute; left: 0; top: 0; font-family: var(--ff-mono); font-size: 11px; color: var(--accent); }
.rich img { margin: 24px 0; height: auto; }
.rich table { margin: 24px 0; font-size: 13.5px; }
.rich th, .rich td { border: 1px solid var(--line); padding: 11px 14px; text-align: left; vertical-align: top; }
.rich th { background: var(--paper-2); font-weight: 600; }
.rich blockquote { margin: 26px 0; padding: 20px 24px; border-left: 2px solid var(--accent); background: var(--paper-2); color: var(--ink-2); }
.rich blockquote p:last-child { margin-bottom: 0; }
.rich iframe { width: 100%; border: 0; }
.rich > *:first-child { margin-top: 0; }

/* ---------- 26. 分页 ---------- */
#fengye { margin-top: clamp(34px, 4vw, 56px); padding-top: 26px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; align-items: center; gap: 6px; font-size: 12.5px; color: var(--muted); }
#fengye > a { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-width: 42px; height: 42px; padding: 0 14px; border: 1px solid var(--line); color: var(--ink-2); font-family: var(--ff-mono); font-size: 11.5px; letter-spacing: .06em; transition: all .24s; }
#fengye > a[href]:hover { border-color: var(--ink); color: var(--ink); background: var(--white); }
#fengye > a.pnnum1 { background: var(--ink); border-color: var(--ink); color: var(--paper); pointer-events: none; }
#fengye > a:not([href]):not(.pnnum1) { opacity: .3; pointer-events: none; }
#fengye > a:nth-child(2)::before, #fengye > a:nth-last-child(2)::before { content: ""; flex: none; width: 5px; height: 5px; border-top: 1px solid currentColor; border-right: 1px solid currentColor; }
#fengye > a:nth-child(2)::before { transform: rotate(-135deg); }
#fengye > a:nth-last-child(2)::before { transform: rotate(45deg); }

/* ---------- 27. 响应式 ---------- */
@media (max-width: 1240px) {
  .z-mega { width: min(900px, calc(100vw - 28px)); }
  .z-mega-in { grid-template-columns: minmax(0, 1fr) 250px; }
  .z-mega-side { padding: 24px 20px; }
  .z-mosaic .z-pcard--lead, .z-mosaic-list { grid-column: span 12; }
  .z-mosaic .z-pcard--half { grid-column: span 6; }
  /* 大卡独占一行后不再有高度差，收起描述 */
  .z-mosaic > .z-pcard--half:nth-child(2) .z-pcard-d,
  .z-mosaic > .z-pcard--half:nth-child(3) .z-pcard-d { display: none; }
}

@media (max-width: 1080px) {
  :root { --head-h: 66px; }
  .z-nav { display: none; }
  .z-burger { display: inline-flex; }
  .z-head-act > .z-btn { display: none; }
  .z-hero-in { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .z-hero-fig { aspect-ratio: 16/11; }
  .z-split { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .z-split--rev .z-split-l { order: 0; }
  .z-faq-wrap { grid-template-columns: minmax(0, 1fr); gap: 26px; }
  .z-faq-intro { position: static; }
  .z-cta-in { grid-template-columns: minmax(0, 1fr); }
  .z-news { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .z-cap { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .z-cap-item:nth-child(3n+1) { padding-left: 0; border-left: 0; }
  .z-cap-item:nth-child(2n) { padding-left: 26px; border-left: 1px solid var(--line); }
  .z-certs { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .z-foot-top { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .z-foot-brand { grid-column: span 2; }
}

@media (max-width: 860px) {
  .z-util-l { display: none; }
  .z-util-in { justify-content: flex-end; }
  .z-spec { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .z-spec > div:nth-child(3) { border-left: 0; padding-left: 0; }
  .z-spec > div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .z-nums { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .z-num:nth-child(3) { border-left: 0; padding-left: 0; }
  .z-num:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .z-cases { grid-template-columns: minmax(0, 1fr); }
  .z-index-row { grid-template-columns: 34px minmax(0, 1fr) 20px; gap: 12px; padding: 16px 0; }
  .z-index-e { display: none; }
  .z-index-thumb { display: none; }
  .z-sec-hd { grid-template-columns: minmax(0, 1fr); align-items: start; }
  .z-sec-hd .z-link { justify-self: start; }
}

@media (max-width: 640px) {
  body { font-size: 15px; }
  :root { --btn-h: 48px; }
  .z-mosaic { grid-template-columns: minmax(0, 1fr); }
  .z-mosaic .z-pcard--half, .z-mosaic .z-pcard--lead { grid-column: span 1; }
  .z-mosaic .z-pcard--half .z-pcard-fig, .z-mosaic .z-pcard--lead .z-pcard-fig { aspect-ratio: 4/3; }
  .z-cap { grid-template-columns: minmax(0, 1fr); }
  .z-cap-item { padding: 24px 0 !important; border-left: 0 !important; }
  .z-certs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .z-mini { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
  .z-hero h1, .z-hero .z-h1 { font-size: clamp(32px, 9vw, 46px); }
  .z-nrow { grid-template-columns: minmax(0, 1fr) 18px; gap: 10px; }
  .z-nrow time { grid-column: 1 / -1; }
  .z-faq-a { padding: 0 10px 20px 26px; }
  .z-faq-q { grid-template-columns: 32px minmax(0, 1fr) 20px; }
  .z-foot-top { grid-template-columns: minmax(0, 1fr); }
  .z-foot-brand { grid-column: span 1; }
  .z-float { right: 12px; bottom: 14px; }
  .z-float a, .z-float button { width: 42px; height: 42px; }
  .z-search-row button { width: 46px; height: 46px; }
}

@media print {
  .z-util, .z-head, .z-drawer, .z-mask, .z-search, .z-float, .z-foot-links { display: none !important; }
}