/* ==========================================================================
   倍杰智能 · 企业官网前台样式
   设计语言：工业控制柜 / 设备铭牌 / 信号指示
   ========================================================================== */

/* --------------------------------------------------------------- 设计变量 */
:root {
  /* 色板：取自控制柜面板、指示灯与钢制机箱 */
  --ink:        #0C1520;
  --ink-2:      #132231;
  --ink-3:      #1D3145;
  --steel:      #42566A;
  --steel-2:    #6B7F92;
  --steel-3:    #97A7B6;
  --signal:     #00B37E;
  --signal-d:   #00996B;
  --signal-l:   #E6F7F1;
  --amber:      #E0A33C;
  --panel:      #F1F3F5;
  --panel-2:    #E7EBEF;
  --paper:      #FFFFFF;
  --line:       #DCE2E8;
  --line-2:     #C7D0D9;
  --line-ink:   rgba(255, 255, 255, .13);

  --danger:     #D64545;

  /* 字体：中文用系统无衬线，型号/参数/日期用等宽 —— 设备铭牌的语言 */
  --font-sans: "MiSans", "HarmonyOS Sans SC", "PingFang SC", "Hiragino Sans GB",
               "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Mono", Menlo,
               Consolas, "Liberation Mono", "Courier New", monospace;

  --wrap: 1200px;
  --radius: 3px;
  --radius-lg: 5px;

  --shadow-sm: 0 1px 2px rgba(12, 21, 32, .06);
  --shadow:    0 6px 20px -8px rgba(12, 21, 32, .18);
  --shadow-lg: 0 22px 48px -20px rgba(12, 21, 32, .34);

  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ------------------------------------------------------------------ 基础 */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

body.no-scroll { overflow: hidden; }

h1, h2, h3, h4, h5 { margin: 0; font-weight: 700; line-height: 1.25; letter-spacing: -.02em; }
p { margin: 0; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }
ul, ol { margin: 0; padding: 0; list-style: none; }
table { border-collapse: collapse; width: 100%; }
hr { border: 0; border-top: 1px solid var(--line); margin: 0; }

:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
  border-radius: 2px;
}

::selection { background: var(--signal); color: #fff; }

/* 等宽数字：型号、参数、日期、统计 */
.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -.01em;
}

/* ------------------------------------------------------------- 布局容器 */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 96px 0; }
.section--tight { padding: 68px 0; }
.section--panel { background: var(--panel); }
.section--ink { background: var(--ink); color: #fff; }
.section--ink h1, .section--ink h2, .section--ink h3 { color: #fff; }

/* 章节抬头：等宽小标 + 信号绿短杠 */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--signal-d);
  margin-bottom: 18px;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--signal);
  flex: none;
}
.section--ink .eyebrow { color: var(--signal); }

.head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 48px;
}
.head--center {
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0;
}
.head--center .eyebrow { justify-content: center; }

.head__title {
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 800;
  letter-spacing: -.03em;
  max-width: 22em;
}
.head__desc {
  margin-top: 14px;
  color: var(--steel);
  font-size: 15px;
  max-width: 46em;
}
.section--ink .head__desc { color: var(--steel-3); }
.head--center .head__desc { margin-inline: auto; }

.head__more {
  flex: none;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--steel);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--line-2);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.head__more:hover { color: var(--signal-d); border-color: var(--signal); }
.head__more::after { content: "→"; transition: transform .2s var(--ease); }
.head__more:hover::after { transform: translateX(3px); }

/* ------------------------------------------------------------------ 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 0 26px;
  height: 46px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
  transition: background .2s var(--ease), color .2s var(--ease),
              border-color .2s var(--ease), transform .2s var(--ease);
}
.btn:active { transform: translateY(1px); }
.btn[disabled] { opacity: .55; pointer-events: none; }

.btn--primary { background: var(--signal); color: #fff; }
.btn--primary:hover { background: var(--signal-d); }

.btn--ink { background: var(--ink); color: #fff; }
.btn--ink:hover { background: var(--ink-3); }

.btn--ghost { border-color: var(--line-2); color: var(--ink); background: transparent; }
.btn--ghost:hover { border-color: var(--ink); }

.btn--ghost-light { border-color: var(--line-ink); color: #fff; background: transparent; }
.btn--ghost-light:hover { border-color: #fff; background: rgba(255, 255, 255, .08); }

.btn--sm { height: 38px; padding: 0 18px; font-size: 14px; }
.btn--block { width: 100%; }

/* ------------------------------------------------------------------ 页头 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.site-header--over {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  background: transparent;
  backdrop-filter: none;
  border-bottom-color: var(--line-ink);
  color: #fff;
}
.site-header--over .nav__link { color: rgba(255, 255, 255, .82); }
.site-header--over .nav__link:hover,
.site-header--over .nav__link.is-active { color: #fff; }
.site-header--over .brand__name { color: #fff; }
.site-header--over .brand__en { color: var(--steel-3); }
.site-header--over .burger span { background: #fff; }

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  height: 74px;
}

.brand { display: flex; align-items: center; gap: 12px; }
.brand__mark {
  width: 34px; height: 34px;
  flex: none;
  display: grid;
  place-items: center;
  background: var(--signal);
  border-radius: var(--radius);
  color: #fff;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 15px;
}
.brand__text { display: flex; flex-direction: column; line-height: 1.15; }
.brand__name { font-size: 17px; font-weight: 800; letter-spacing: -.01em; }
.brand__en {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .12em;
  color: var(--steel-3);
  text-transform: uppercase;
}

.nav { display: flex; align-items: center; gap: 4px; }
.nav__item { position: relative; }
.nav__link {
  display: block;
  padding: 10px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--steel);
  border-radius: var(--radius);
  transition: color .18s var(--ease);
}
.nav__link:hover, .nav__link.is-active { color: var(--ink); }
.nav__link.is-active { font-weight: 600; }
.nav__link.is-active::after {
  content: "";
  display: block;
  height: 2px;
  margin-top: 6px;
  background: var(--signal);
  border-radius: 2px;
}

.nav__drop {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 168px;
  padding: 6px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity .18s var(--ease), transform .18s var(--ease), visibility .18s;
}
.nav__item:hover .nav__drop,
.nav__item:focus-within .nav__drop {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.nav__drop a {
  display: block;
  padding: 9px 12px;
  font-size: 14px;
  color: var(--steel);
  border-radius: var(--radius);
}
.nav__drop a:hover { background: var(--panel); color: var(--ink); }

.header__side { display: flex; align-items: center; gap: 18px; }
.header__tel {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
  text-align: right;
}
.header__tel small {
  font-size: 11px;
  color: var(--steel-3);
  letter-spacing: .06em;
}
.header__tel b {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
}
.site-header--over .header__tel small { color: var(--steel-3); }

.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px; height: 42px;
  background: none;
  border: 0;
  padding: 0 9px;
}
.burger span {
  display: block;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform .22s var(--ease), opacity .22s var(--ease);
}
.burger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.is-open span:nth-child(2) { opacity: 0; }
.burger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 移动端抽屉 */
.drawer {
  position: fixed;
  inset: 74px 0 0;
  z-index: 55;
  background: #fff;
  padding: 20px 24px 40px;
  overflow-y: auto;
  animation: drawer-in .22s var(--ease);
}
@keyframes drawer-in { from { opacity: 0; transform: translateY(-8px); } }
.drawer__group { border-bottom: 1px solid var(--line); }
.drawer__link {
  display: block;
  padding: 15px 0;
  font-size: 16px;
  font-weight: 600;
}
.drawer__sub { padding: 0 0 12px; }
.drawer__sub a {
  display: block;
  padding: 8px 0 8px 16px;
  font-size: 14px;
  color: var(--steel);
  border-left: 2px solid var(--line);
}
.drawer__sub a:hover { border-color: var(--signal); color: var(--signal-d); }

/* ------------------------------------------------------------------ Hero */
.hero {
  position: relative;
  background: var(--ink);
  color: #fff;
  overflow: hidden;
  isolation: isolate;
}
/* 机柜网格底纹 + 信号光晕 */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 80% at 70% 30%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 70% 30%, #000 20%, transparent 75%);
}
.hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  top: -30%; right: -12%;
  width: 62%; aspect-ratio: 1;
  background: radial-gradient(circle, rgba(0, 179, 126, .2), transparent 62%);
  pointer-events: none;
}

.hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
  align-items: center;
  gap: 64px;
  padding: 168px 0 72px;
}

.hero__tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px 6px 10px;
  border: 1px solid var(--line-ink);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--steel-3);
  margin-bottom: 30px;
}
.hero__tag i {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 0 rgba(0, 179, 126, .6);
  animation: pulse 2.4s infinite;
  flex: none;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(0, 179, 126, .55); }
  70%  { box-shadow: 0 0 0 9px rgba(0, 179, 126, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 179, 126, 0); }
}

.hero__title {
  font-size: clamp(34px, 4.9vw, 60px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -.035em;
}
.hero__title em {
  font-style: normal;
  color: var(--signal);
}
.hero__sub {
  margin-top: 24px;
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .68);
  max-width: 32em;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 38px; }

/* 签名元素：铭牌条 —— 用设备铭牌的结构呈现关键数据 */
.datastrip {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin-top: 64px;
  border-top: 1px solid var(--line-ink);
  padding-top: 26px;
}
.datastrip__cell {
  flex: 1 1 0;
  min-width: 128px;
  padding-right: 28px;
  position: relative;
}
.datastrip__cell + .datastrip__cell { padding-left: 28px; }
.datastrip__cell + .datastrip__cell::before {
  content: "";
  position: absolute;
  left: 0; top: 4px;
  width: 1px; height: 30px;
  background: var(--line-ink);
}
.datastrip__num {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -.03em;
  display: flex;
  align-items: baseline;
  gap: 3px;
}
.datastrip__num i {
  font-style: normal;
  font-size: 14px;
  color: var(--signal);
  font-weight: 500;
}
.datastrip__label {
  margin-top: 6px;
  font-size: 12.5px;
  color: var(--steel-3);
  letter-spacing: .04em;
}

/* Hero 右侧：网关实时面板 */
.panel {
  background: linear-gradient(165deg, var(--ink-2), var(--ink-3));
  border: 1px solid var(--line-ink);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.panel__bar {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line-ink);
  background: rgba(0, 0, 0, .18);
}
.panel__dot { width: 8px; height: 8px; border-radius: 50%; flex: none; }
.panel__title {
  margin-left: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--steel-3);
}
.panel__live {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--signal);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.panel__live i {
  width: 6px; height: 6px; border-radius: 50%; background: var(--signal);
  animation: pulse 2.4s infinite;
}
.panel__body { padding: 20px 16px 8px; }

.panel__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 0;
  border-bottom: 1px dashed rgba(255, 255, 255, .09);
}
.panel__row:last-child { border-bottom: 0; }
.panel__key {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 13.5px;
  color: rgba(255, 255, 255, .72);
}
.panel__key i {
  width: 3px; height: 15px;
  border-radius: 2px;
  background: var(--signal);
  flex: none;
}
.panel__row:nth-child(3n+2) .panel__key i { background: var(--amber); }
.panel__row:nth-child(3n) .panel__key i { background: var(--steel-2); }
.panel__val {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.panel__val span {
  font-size: 11px;
  color: var(--steel-3);
  margin-left: 4px;
  font-weight: 400;
}

/* 迷你波形 */
.panel__wave { padding: 14px 16px 18px; border-top: 1px solid var(--line-ink); }
.panel__wave svg { display: block; width: 100%; height: 54px; }
.panel__wave path {
  fill: none;
  stroke: var(--signal);
  stroke-width: 1.6;
  stroke-linejoin: round;
  stroke-dasharray: 620;
  stroke-dashoffset: 620;
  animation: draw 2.2s .35s var(--ease) forwards;
}
@keyframes draw { to { stroke-dashoffset: 0; } }
.panel__wave .grid-line { stroke: rgba(255, 255, 255, .07); stroke-width: 1; stroke-dasharray: none; }

/* 轮播 */
.hero__slider { position: relative; }
.hero__dots { display: flex; gap: 8px; margin-top: 20px; }
.hero__dot {
  width: 34px; height: 3px;
  border: 0; padding: 0;
  background: rgba(255, 255, 255, .2);
  border-radius: 2px;
  transition: background .25s var(--ease), width .25s var(--ease);
}
.hero__dot.is-active { background: var(--signal); width: 48px; }

/* ------------------------------------------------------------------ 卡片 */
.grid { display: grid; gap: 24px; }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color .22s var(--ease), box-shadow .22s var(--ease),
              transform .22s var(--ease);
}
.card:hover {
  border-color: var(--line-2);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

/* 能力卡 */
.ability { padding: 30px 26px; height: 100%; }
.ability__icon {
  width: 44px; height: 44px;
  display: grid;
  place-items: center;
  background: var(--signal-l);
  border-radius: var(--radius);
  color: var(--signal-d);
  margin-bottom: 20px;
}
.ability__icon svg { width: 22px; height: 22px; }
.ability__title { font-size: 17px; font-weight: 700; }
.ability__desc { margin-top: 10px; font-size: 14px; color: var(--steel); line-height: 1.75; }

/* 产品卡 */
.pcard { display: flex; flex-direction: column; height: 100%; }
.pcard__media {
  position: relative;
  aspect-ratio: 16 / 10;
  background: var(--panel);
  overflow: hidden;
}
.pcard__media img { width: 100%; height: 100%; object-fit: cover; }
.pcard__model {
  position: absolute;
  left: 12px; bottom: 12px;
  padding: 4px 9px;
  background: rgba(12, 21, 32, .86);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  border-radius: var(--radius);
  backdrop-filter: blur(4px);
}
.pcard__body {
  padding: 20px 22px 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.pcard__cat {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--signal-d);
}
.pcard__name { margin-top: 8px; font-size: 17px; font-weight: 700; }
.pcard__desc {
  margin-top: 9px;
  font-size: 13.5px;
  color: var(--steel);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.pcard__foot {
  margin-top: auto;
  padding-top: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--steel-3);
}
.pcard__foot span { transition: color .2s var(--ease); }
.card:hover .pcard__foot span { color: var(--signal-d); }

/* 新闻卡 */
.ncard { display: flex; flex-direction: column; height: 100%; }
.ncard__media { aspect-ratio: 16 / 9; background: var(--panel); overflow: hidden; }
.ncard__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease); }
.card:hover .ncard__media img { transform: scale(1.04); }
.ncard__body { padding: 20px 22px 22px; display: flex; flex-direction: column; flex: 1; }
.ncard__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--steel-3);
}
.ncard__cat { color: var(--signal-d); }
.ncard__title {
  margin-top: 12px;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.ncard__desc {
  margin-top: 10px;
  font-size: 13.5px;
  color: var(--steel);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.ncard__foot {
  margin-top: auto;
  padding-top: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--steel-3);
}

/* 新闻列表（行式，工业文档感） */
.nlist { border-top: 1px solid var(--line); }
.nlist__item {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
  padding: 22px 4px;
  border-bottom: 1px solid var(--line);
  transition: background .2s var(--ease);
}
.nlist__item:hover { background: var(--panel); }
.nlist__date {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--steel-3);
  line-height: 1.4;
}
.nlist__date b { display: block; font-size: 19px; color: var(--ink); font-weight: 600; }
.nlist__title {
  font-size: 16.5px;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.nlist__item:hover .nlist__title { color: var(--signal-d); }
.nlist__cat {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--steel-3);
  padding: 3px 10px;
  border: 1px solid var(--line);
  border-radius: 100px;
  white-space: nowrap;
}

/* 案例卡 */
.ccard { position: relative; height: 100%; }
.ccard__media { position: relative; aspect-ratio: 4 / 3; background: var(--panel); overflow: hidden; }
.ccard__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease); }
.card:hover .ccard__media img { transform: scale(1.05); }
.ccard__year {
  position: absolute;
  top: 12px; right: 12px;
  padding: 4px 9px;
  background: rgba(12, 21, 32, .86);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 11.5px;
  border-radius: var(--radius);
}
.ccard__body { padding: 20px 22px 24px; }
.ccard__industry {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--signal-d);
}
.ccard__title { margin-top: 8px; font-size: 16.5px; font-weight: 700; line-height: 1.5; }
.ccard__desc {
  margin-top: 10px;
  font-size: 13.5px;
  color: var(--steel);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.ccard__result {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--line-2);
  font-size: 13px;
  color: var(--steel);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.ccard__result b { color: var(--signal-d); font-weight: 600; }

/* 合作伙伴 */
.wall {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.wall__item {
  display: grid;
  place-items: center;
  min-height: 104px;
  padding: 22px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #fff;
  transition: background .2s var(--ease);
}
.wall__item:hover { background: var(--panel); }
.wall__item img { max-height: 44px; width: auto; filter: grayscale(1); opacity: .62; transition: filter .24s var(--ease), opacity .24s var(--ease); }
.wall__item:hover img { filter: none; opacity: 1; }
.wall__item span { font-size: 13.5px; color: var(--steel); text-align: center; }

/* ------------------------------------------------------------------ 内页 */
.page-head {
  position: relative;
  background: var(--ink);
  color: #fff;
  padding: 148px 0 56px;
  overflow: hidden;
  isolation: isolate;
}
.page-head::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, #000, transparent);
  -webkit-mask-image: linear-gradient(to bottom, #000, transparent);
}
.page-head__title {
  font-size: clamp(28px, 3.4vw, 42px);
  font-weight: 800;
  letter-spacing: -.03em;
  padding-left: 20px;
  position: relative;
}
.page-head__title::before {
  content: "";
  position: absolute;
  left: 0; top: .16em;
  width: 4px;
  height: .95em;
  background: var(--signal);
  border-radius: 2px;
}
.page-head__en {
  margin-top: 12px;
  padding-left: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--steel-3);
}
.page-head__desc {
  margin-top: 18px;
  padding-left: 20px;
  max-width: 52em;
  color: rgba(255, 255, 255, .66);
  font-size: 15px;
}

.crumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--steel-3);
  margin-bottom: 22px;
}
.crumb a:hover { color: var(--signal); }
.crumb span.sep { opacity: .5; }

/* 富文本正文 */
.prose { font-size: 15.5px; line-height: 1.95; color: #2A3947; }
.prose > * + * { margin-top: 18px; }
.prose h3 {
  font-size: 19px;
  font-weight: 700;
  margin-top: 40px;
  padding-left: 14px;
  position: relative;
  color: var(--ink);
}
.prose h3::before {
  content: "";
  position: absolute;
  left: 0; top: .2em;
  width: 3px; height: .85em;
  background: var(--signal);
  border-radius: 2px;
}
.prose h4 { font-size: 16.5px; margin-top: 30px; color: var(--ink); }
.prose strong { font-weight: 700; color: var(--ink); }
.prose a { color: var(--signal-d); text-decoration: underline; text-underline-offset: 3px; }
.prose ul, .prose ol { padding-left: 22px; }
.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }
.prose li + li { margin-top: 8px; }
.prose img { border-radius: var(--radius); }
.prose blockquote {
  padding: 14px 20px;
  border-left: 3px solid var(--signal);
  background: var(--panel);
  color: var(--steel);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.prose table { font-size: 14.5px; margin-top: 24px; }
.prose th, .prose td { border: 1px solid var(--line); padding: 11px 14px; text-align: left; }
.prose th { background: var(--panel); font-weight: 600; }

/* 两栏图文 */
.split {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  gap: 64px;
  align-items: start;
}
.split--rev { grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr); }

/* 数据条（浅色版，用于内页） */
.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #fff;
}
.stats__cell { padding: 28px 24px; border-right: 1px solid var(--line); }
.stats__cell:last-child { border-right: 0; }
.stats__num {
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 600;
  letter-spacing: -.03em;
  line-height: 1.1;
  color: var(--ink);
}
.stats__num i { font-style: normal; font-size: 14px; color: var(--signal-d); margin-left: 2px; }
.stats__label { margin-top: 7px; font-size: 13px; color: var(--steel); }

/* 发展历程 */
.timeline { position: relative; padding-left: 34px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 6px; top: 10px; bottom: 10px;
  width: 1px;
  background: var(--line-2);
}
.timeline__item { position: relative; padding-bottom: 40px; }
.timeline__item:last-child { padding-bottom: 0; }
.timeline__item::before {
  content: "";
  position: absolute;
  left: -34px; top: 7px;
  width: 13px; height: 13px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--signal);
}
.timeline__year {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--signal-d);
  letter-spacing: .04em;
}
.timeline__title { margin-top: 6px; font-size: 16.5px; font-weight: 700; }
.timeline__desc { margin-top: 8px; font-size: 14px; color: var(--steel); line-height: 1.75; }

/* 荣誉墙 */
.honor { text-align: center; padding: 26px 18px; height: 100%; }
.honor__media { aspect-ratio: 4 / 3; display: grid; place-items: center; background: var(--panel); border-radius: var(--radius); overflow: hidden; }
.honor__media img { max-height: 80%; width: auto; object-fit: contain; }
.honor__title { margin-top: 16px; font-size: 15px; font-weight: 600; }
.honor__year { margin-top: 5px; font-family: var(--font-mono); font-size: 12px; color: var(--steel-3); }

/* 筛选栏 */
.filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 34px;
}
.chip {
  padding: 8px 18px;
  border: 1px solid var(--line);
  border-radius: 100px;
  font-size: 14px;
  color: var(--steel);
  background: #fff;
  transition: all .2s var(--ease);
}
.chip:hover { border-color: var(--steel-3); color: var(--ink); }
.chip.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
  font-weight: 600;
}
.filters__search {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0 6px 0 14px;
  background: #fff;
  height: 42px;
  min-width: 240px;
}
.filters__search input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: 0;
  font: inherit;
  font-size: 14px;
  background: none;
}

/* 分页 */
.pager { display: flex; justify-content: center; align-items: center; gap: 8px; margin-top: 52px; }
.pager__btn {
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--steel);
  transition: all .2s var(--ease);
}
.pager__btn:hover { border-color: var(--ink); color: var(--ink); }
.pager__btn.is-active { background: var(--ink); border-color: var(--ink); color: #fff; }
.pager__btn[disabled] { opacity: .4; pointer-events: none; }

/* 产品详情 */
.pd { display: grid; grid-template-columns: minmax(0, 1.04fr) minmax(0, .96fr); gap: 56px; align-items: start; }
.pd__media {
  aspect-ratio: 4 / 3;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.pd__media img { width: 100%; height: 100%; object-fit: cover; }
.pd__model {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--signal-d);
  padding: 4px 10px;
  border: 1px solid var(--signal);
  border-radius: var(--radius);
  margin-bottom: 16px;
}
.pd__title { font-size: clamp(24px, 2.6vw, 32px); font-weight: 800; letter-spacing: -.03em; }
.pd__sub { margin-top: 12px; color: var(--steel); font-size: 15.5px; }
.pd__summary {
  margin-top: 24px;
  padding-left: 16px;
  border-left: 3px solid var(--signal);
  color: #2A3947;
  font-size: 15px;
  line-height: 1.9;
}
.pd__tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.pd__tags span {
  font-size: 12.5px;
  color: var(--steel);
  background: var(--panel);
  padding: 5px 12px;
  border-radius: 100px;
}
.pd__actions { display: flex; gap: 12px; margin-top: 32px; }

/* 参数表：设备铭牌式的规格清单 */
.spec { border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.spec__row { display: grid; grid-template-columns: 190px minmax(0, 1fr); }
.spec__row + .spec__row { border-top: 1px solid var(--line); }
.spec__key {
  padding: 14px 20px;
  background: var(--panel);
  font-size: 14px;
  color: var(--steel);
  border-right: 1px solid var(--line);
}
.spec__val {
  padding: 14px 20px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--ink);
}

/* 招聘 */
.job { border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff; overflow: hidden; }
.job + .job { margin-top: 14px; }
.job__head {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 22px 26px;
  cursor: pointer;
  transition: background .2s var(--ease);
}
.job__head:hover { background: var(--panel); }
.job__title { font-size: 17px; font-weight: 700; flex: 1; min-width: 0; }
.job__meta {
  display: flex;
  gap: 26px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--steel);
}
.job__salary { color: var(--signal-d); font-weight: 600; }
.job__toggle {
  width: 26px; height: 26px;
  flex: none;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  font-size: 17px;
  line-height: 1;
  color: var(--steel);
  transition: transform .25s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}
.job.is-open .job__toggle { transform: rotate(45deg); border-color: var(--signal); color: var(--signal-d); }
.job__body { padding: 4px 26px 28px; border-top: 1px solid var(--line); }
.job__sec { margin-top: 22px; }
.job__sec h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 10px;
  padding-left: 12px;
  position: relative;
}
.job__sec h4::before {
  content: "";
  position: absolute;
  left: 0; top: .22em;
  width: 3px; height: .8em;
  background: var(--signal);
  border-radius: 2px;
}

/* --------------------------------------------------------------- 表单 */
.form { display: grid; gap: 18px; }
.form--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.field { display: flex; flex-direction: column; gap: 8px; }
.field--full { grid-column: 1 / -1; }
.field label { font-size: 13.5px; font-weight: 600; color: var(--ink); }
.field label i { color: var(--danger); font-style: normal; margin-left: 3px; }
.field input, .field textarea, .field select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font: inherit;
  font-size: 14.5px;
  color: var(--ink);
  background: #fff;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: 0;
  border-color: var(--signal);
  box-shadow: 0 0 0 3px rgba(0, 179, 126, .12);
}
.field textarea { resize: vertical; min-height: 118px; line-height: 1.7; }
.field__hint { font-size: 12.5px; color: var(--steel-3); }
.field__error { font-size: 12.5px; color: var(--danger); }
.field.has-error input, .field.has-error textarea { border-color: var(--danger); }

/* 留言区 */
.contact-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: 56px; align-items: start; }
.info-list { display: grid; gap: 22px; }
.info {
  display: flex;
  gap: 16px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}
.info:last-child { border-bottom: 0; padding-bottom: 0; }
.info__icon {
  width: 40px; height: 40px;
  flex: none;
  display: grid;
  place-items: center;
  background: var(--panel);
  border-radius: var(--radius);
  color: var(--signal-d);
}
.info__icon svg { width: 19px; height: 19px; }
.info__label { font-size: 12.5px; color: var(--steel-3); letter-spacing: .04em; }
.info__value { margin-top: 4px; font-size: 15.5px; font-weight: 600; word-break: break-all; }
.info__value.mono { font-weight: 500; }

.form-panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 34px;
  box-shadow: var(--shadow-sm);
}

/* 会员/提示条 */
.notice {
  display: flex;
  gap: 12px;
  padding: 14px 18px;
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.7;
}
.notice--ok { background: var(--signal-l); color: var(--signal-d); }
.notice--warn { background: #FDF4E4; color: #9A6A15; }
.notice--err { background: #FCEDED; color: #A93226; }

/* CTA 条 */
.cta {
  position: relative;
  background: var(--ink);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 52px 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  overflow: hidden;
  isolation: isolate;
}
.cta::before {
  content: "";
  position: absolute;
  z-index: -1;
  right: -8%; top: -70%;
  width: 46%; aspect-ratio: 1;
  background: radial-gradient(circle, rgba(0, 179, 126, .26), transparent 65%);
}
.cta__title { font-size: clamp(22px, 2.4vw, 30px); font-weight: 800; letter-spacing: -.03em; }
.cta__desc { margin-top: 12px; color: rgba(255, 255, 255, .66); font-size: 15px; }
.cta__actions { display: flex; gap: 12px; flex: none; }

/* ------------------------------------------------------------------ 页脚 */
.site-footer { background: var(--ink); color: rgba(255, 255, 255, .62); padding: 72px 0 0; font-size: 14px; }
.footer__top {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, minmax(0, 1fr));
  gap: 48px;
  padding-bottom: 52px;
}
.footer__brand { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.footer__brand .brand__name { color: #fff; }
.footer__desc { line-height: 1.85; max-width: 34em; }
.footer__col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 18px;
}
.footer__col li + li { margin-top: 11px; }
.footer__col a { transition: color .18s var(--ease); }
.footer__col a:hover { color: var(--signal); }
.footer__contact li { display: flex; gap: 10px; line-height: 1.7; }
.footer__contact b { color: #fff; font-family: var(--font-mono); font-weight: 600; }
.footer__bottom {
  border-top: 1px solid var(--line-ink);
  padding: 24px 0 30px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 13px;
}
.footer__bottom .mono { color: var(--steel-3); }
.footer__links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer__links a:hover { color: var(--signal); }

/* 返回顶部 */
.to-top {
  position: fixed;
  right: 26px; bottom: 26px;
  z-index: 50;
  width: 44px; height: 44px;
  display: grid;
  place-items: center;
  background: var(--ink);
  color: #fff;
  border: 0;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all .24s var(--ease);
}
.to-top.is-show { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { background: var(--signal); }

/* ------------------------------------------------------------------ 提示 */
.toast-wrap {
  position: fixed;
  top: 22px; left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  display: grid;
  gap: 10px;
  pointer-events: none;
}
.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  background: var(--ink);
  color: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  font-size: 14px;
  animation: toast-in .24s var(--ease);
}
.toast--ok { background: var(--signal-d); }
.toast--err { background: var(--danger); }
@keyframes toast-in { from { opacity: 0; transform: translateY(-10px); } }

/* 加载骨架 */
.skeleton {
  background: linear-gradient(90deg, var(--panel) 25%, var(--panel-2) 37%, var(--panel) 63%);
  background-size: 400% 100%;
  animation: shimmer 1.4s infinite linear;
  border-radius: var(--radius);
}
@keyframes shimmer { from { background-position: 100% 50%; } to { background-position: 0 50%; } }
.sk-card { height: 268px; }
.sk-line { height: 15px; margin-bottom: 12px; }

/* 空状态 */
.empty { text-align: center; padding: 76px 20px; color: var(--steel-3); }
.empty__icon { font-size: 40px; opacity: .35; margin-bottom: 14px; }
.empty__text { font-size: 15px; }

/* 滚动入场 */
.reveal { opacity: 0; transform: translateY(18px); }
.reveal.is-in {
  opacity: 1;
  transform: none;
  transition: opacity .62s var(--ease), transform .62s var(--ease);
}

/* ------------------------------------------------------------------ 响应式 */
@media (max-width: 1080px) {
  .hero__inner { grid-template-columns: 1fr; gap: 52px; padding: 140px 0 64px; }
  .hero__panel { max-width: 560px; }
  .nav { display: none; }
  .burger { display: flex; }
  .header__tel { display: none; }
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .wall { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats__cell:nth-child(2) { border-right: 0; }
  .stats__cell:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .split, .split--rev { grid-template-columns: 1fr; gap: 40px; }
  .pd { grid-template-columns: 1fr; gap: 36px; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer__top { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 40px; }
}

@media (max-width: 720px) {
  .section { padding: 68px 0; }
  .section--tight { padding: 52px 0; }
  .wrap { padding: 0 18px; }
  .head { flex-direction: column; align-items: flex-start; gap: 20px; margin-bottom: 34px; }
  .grid { gap: 16px; }
  .grid--4, .grid--3, .grid--2 { grid-template-columns: 1fr; }
  .wall { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .datastrip { gap: 22px 0; }
  .datastrip__cell { flex: 1 1 42%; padding-right: 0; }
  .datastrip__cell + .datastrip__cell { padding-left: 0; }
  .datastrip__cell + .datastrip__cell::before { display: none; }
  .datastrip__num { font-size: 25px; }
  .cta { flex-direction: column; align-items: flex-start; padding: 38px 26px; }
  .cta__actions { width: 100%; }
  .cta__actions .btn { flex: 1; }
  .form--2 { grid-template-columns: 1fr; }
  .form-panel { padding: 24px 20px; }
  .nlist__item { grid-template-columns: 64px minmax(0, 1fr); gap: 16px; }
  .nlist__cat { display: none; }
  .nlist__title { white-space: normal; font-size: 15.5px; }
  .job__head { flex-wrap: wrap; gap: 12px 20px; padding: 18px 20px; }
  .job__title { flex: 1 1 100%; font-size: 16px; }
  .job__meta { gap: 18px; font-size: 12.5px; }
  .job__body { padding: 4px 20px 24px; }
  .spec__row { grid-template-columns: 118px minmax(0, 1fr); }
  .spec__key, .spec__val { padding: 12px 14px; font-size: 13px; }
  .footer__top { grid-template-columns: 1fr; gap: 32px; padding-bottom: 36px; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
  .page-head { padding: 116px 0 42px; }
  .hero__inner { padding: 122px 0 56px; }
  .pd__actions .btn { flex: 1; }
}

/* 尊重系统的减弱动效设置 */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .panel__wave path { stroke-dashoffset: 0; }
}