/* =========================================================
   中科春意 ZHONGKE CHUNYI · 得淼 DEAMAX — 设计系统
   主题色：ZKCY 紫 (#6450E4) — 取自 LOGO2.jpg 像素平均色
   配色：紫(主) + 珊瑚(强调) + 绿(数据) 三轴
   ========================================================= */

:root {
  /* 品牌主色 — ZKCY 紫 */
  --accent:        #6450E4;
  --accent-600:    #5040C9;
  --accent-700:    #4338CA;
  --accent-050:    #EFEBFF;
  --accent-100:    #DCD5FB;
  --accent-glow:   rgba(100, 80, 228, .35);
  --accent-soft:   rgba(100, 80, 228, .10);

  /* 辅助色 */
  --coral:    #FF4D2E;     /* 鸿蒙+ 强调 */
  --coral-050:#FFF0ED;
  --green:    #00B894;     /* 能源管理 */
  --green-600:#009E7F;
  --green-050:#E6FAF3;
  --blue:     #2C6BED;     /* 联系页图标 / 方案 CTA */
  --blue-050: #EAF1FE;

  /* 中性色 */
  --ink:    #0A1020;
  --ink-2:  #1A2233;
  --gray:   #5B6678;
  --gray-2: #8A94A6;
  --line:   #E6EAF2;
  --bg:     #FFFFFF;
  --bg-soft:#F6F8FC;
  --bg-dark:#0A1020;

  /* 排版 / 容器 / 圆角 / 阴影 */
  --maxw: 1200px;
  --radius:    16px;
  --radius-sm: 10px;
  --shadow:    0 10px 40px rgba(10, 16, 32, .08);
  --shadow-lg: 0 24px 60px rgba(10, 16, 32, .14);

  /* 字体：英文/数字 Inter，中文优先 Noto Sans SC，回退 TC，再退化 system-ui */
  --font: "Inter", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB",
          "Noto Sans SC", "Noto Sans TC", "Source Han Sans SC", system-ui,
          -apple-system, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--ink-2);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: 16px;
  font-feature-settings: "cv11", "ss01";
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { font-family: inherit; }
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- 标题 / 文字 ---------- */
h1, h2, h3, h4 { color: var(--ink); line-height: 1.25; font-weight: 800; letter-spacing: -.01em; }
.h-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 14px;
}
.h-eyebrow::before { content: ""; width: 26px; height: 3px; border-radius: 3px; background: var(--accent); }
.section-title { font-size: clamp(26px, 3.4vw, 40px); margin-bottom: 16px; }
.section-sub { color: var(--gray); font-size: 17px; max-width: 720px; }
.lead { font-size: 18px; color: var(--gray); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 26px; border-radius: 999px; font-weight: 700; font-size: 15px;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
  cursor: pointer; border: 1px solid transparent; letter-spacing: .01em;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-600));
  color: #fff; box-shadow: 0 8px 22px var(--accent-glow);
}
.btn-primary:hover { background: linear-gradient(135deg, var(--accent-600), var(--accent-700)); transform: translateY(-2px); box-shadow: 0 14px 32px var(--accent-glow); }
.btn-ghost { background: rgba(255,255,255,.12); color: #fff; border-color: rgba(255,255,255,.3); }
.btn-ghost:hover { background: rgba(255,255,255,.2); }
.btn-outline { background: #fff; color: var(--ink); border-color: var(--line); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); box-shadow: 0 8px 22px var(--accent-soft); }
.btn .arrow { transition: transform .2s ease; }
.btn:hover .arrow { transform: translateX(3px); }

/* ===========================================================
   顶部导航  v2 — 紫主色 + 菜单图标 + 下划线动画 + 语言切换
   =========================================================== */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  background: rgba(255,255,255,.78); backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid transparent; transition: border-color .3s, box-shadow .3s, background .3s;
}
.site-header.scrolled {
  border-color: var(--line);
  box-shadow: 0 6px 24px rgba(10,16,32,.06);
  background: rgba(255,255,255,.92);
}
.nav {
  display: flex; align-items: center; gap: 14px;
  height: 76px;
}

/* ---------- 品牌区（点击放大 + 动态发光）---------- */
.brand {
  position: relative;
  display: inline-flex; align-items: center; gap: 12px;
  padding: 4px 8px 4px 4px;
  border-radius: 14px;
  transition: transform .25s ease;
  flex: none;
}
.brand:hover { transform: translateY(-1px); }
.brand .brand-img {
  height: 40px; width: auto;
  border-radius: 6px;
  position: relative; z-index: 2;
  transition: filter .3s ease;
  filter: drop-shadow(0 2px 4px rgba(10,16,32,.08));
}
.site-header:not(.scrolled) .brand .brand-img {
  /* 透明背景下 LOGO 加白光晕 */
  filter: drop-shadow(0 0 12px rgba(255,255,255,.85)) drop-shadow(0 0 4px rgba(255,255,255,.5)) brightness(1.04);
}
.brand .brand-glow {
  position: absolute; inset: -4px;
  border-radius: 16px;
  background: radial-gradient(circle at 30% 50%, var(--accent-glow), transparent 70%);
  opacity: .55; z-index: 0;
  animation: brand-pulse 4.6s ease-in-out infinite;
  pointer-events: none;
}
.brand:hover .brand-glow { opacity: .9; animation-duration: 2.2s; }
.brand .brand-zoom {
  position: absolute; right: -8px; top: -8px;
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--accent); color: #fff;
  display: grid; place-items: center;
  opacity: 0; transform: scale(.6); transition: opacity .25s, transform .25s;
  z-index: 3;
  box-shadow: 0 4px 10px var(--accent-glow);
}
.brand .brand-zoom svg { width: 12px; height: 12px; }
.brand:hover .brand-zoom { opacity: 1; transform: scale(1); }

@keyframes brand-pulse {
  0%, 100% { transform: scale(1); opacity: .45; }
  50%      { transform: scale(1.12); opacity: .85; }
}

/* ---------- 菜单（图标 + 文字 + 下划线）---------- */
.nav-links {
  display: flex; align-items: center; gap: 2px;
  justify-content: flex-end;
  flex: 1 1 auto; min-width: 0;
  margin-right: 8px;
  /* 菜单项过多时横向滚动，绝不竖排换行 */
  overflow-x: auto; overflow-y: hidden;
  scrollbar-width: none; -ms-overflow-style: none;
}
.nav-links::-webkit-scrollbar { display: none; }
.nav-links > li { flex: none; }
.nav-links > li > a {
  position: relative;
  display: inline-flex; align-items: center; gap: 5px;
  padding: 8px 9px; border-radius: 9px;
  font-weight: 600; font-size: 13.5px; color: var(--ink-2);
  letter-spacing: .01em; white-space: nowrap;
  transition: color .2s ease, background .2s ease;
}
.nav-links > li > a .n-ico {
  display: inline-flex; width: 15px; height: 15px;
  color: var(--gray-2);
  transition: color .2s ease, transform .25s ease;
}
.nav-links > li > a .n-ico svg { width: 15px; height: 15px; }
.nav-links > li > a::after {
  content: ""; position: absolute;
  left: 12px; right: 12px; bottom: 4px;
  height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-100));
  transform: scaleX(0); transform-origin: left;
  transition: transform .28s ease;
}
.nav-links > li > a:hover {
  color: var(--accent);
  background: transparent;
}
.nav-links > li > a:hover .n-ico,
.nav-links > li > a.active .n-ico {
  color: var(--accent);
  transform: rotate(-6deg) scale(1.08);
}
.nav-links > li > a:hover::after,
.nav-links > li > a.active::after {
  transform: scaleX(1);
}
.nav-links > li > a.active {
  color: var(--accent);
  background: var(--accent-soft);
}

/* ---------- 顶部右侧工具区 ---------- */
.nav-tools { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; width: 42px; height: 42px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); margin: 5px auto; border-radius: 2px; transition: .25s; }

/* ---------- 语言切换器（三语下拉）---------- */
.lang-switch { position: relative; }
.lang-current {
  display: inline-flex; align-items: center; gap: 6px;
  height: 38px; padding: 0 12px;
  background: #fff; border: 1px solid var(--line);
  border-radius: 999px; color: var(--ink); font-weight: 600; font-size: 13.5px;
  cursor: pointer; transition: border-color .2s, color .2s, box-shadow .2s;
}
.lang-current svg { width: 16px; height: 16px; color: var(--accent); }
.lang-current .caret {
  width: 0; height: 0; border-left: 4px solid transparent; border-right: 4px solid transparent;
  border-top: 5px solid currentColor; margin-left: 2px; opacity: .55;
}
.lang-current:hover { border-color: var(--accent); color: var(--accent); box-shadow: 0 6px 18px var(--accent-soft); }
.lang-menu {
  position: absolute; top: calc(100% + 8px); right: 0;
  min-width: 168px; padding: 6px;
  background: #fff; border: 1px solid var(--line);
  border-radius: 12px; box-shadow: var(--shadow-lg);
  display: none;
  z-index: 110;
}
.lang-switch[data-open="1"] .lang-menu { display: block; animation: lang-pop .18s ease; }
@keyframes lang-pop {
  from { opacity: 0; transform: translateY(-4px) scale(.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.lang-menu button {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding: 9px 11px; border: 0; background: none;
  border-radius: 8px; cursor: pointer; color: var(--ink-2);
  font-size: 14px; text-align: left;
  transition: background .15s, color .15s;
}
.lang-menu button:hover { background: var(--accent-soft); color: var(--accent); }
.lang-menu button.active { background: var(--accent-soft); color: var(--accent); font-weight: 700; }
.lang-menu .lang-code {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 24px; border-radius: 6px;
  background: var(--bg-soft); font-weight: 800; font-size: 12px;
  color: var(--accent); letter-spacing: .04em;
}
.lang-menu button.active .lang-code { background: var(--accent); color: #fff; }
.lang-menu .lang-name { font-size: 13.5px; }

/* ===========================================================
   LOGO 灯箱（点击放大原图）
   =========================================================== */
.logo-lightbox {
  position: fixed; inset: 0; z-index: 200;
  display: none; align-items: center; justify-content: center;
  padding: 40px 24px;
}
.logo-lightbox.open { display: flex; }
.logo-lightbox .llb-backdrop {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, rgba(100,80,228,.45), rgba(10,16,32,.86) 70%);
  backdrop-filter: blur(10px);
  animation: llb-fade .25s ease;
}
@keyframes llb-fade { from { opacity: 0; } to { opacity: 1; } }
.logo-lightbox .llb-card {
  position: relative;
  max-width: min(92vw, 1200px);
  max-height: 88vh;
  background: #fff; border-radius: var(--radius);
  padding: 20px 20px 16px;
  box-shadow: 0 30px 80px rgba(10,16,32,.4);
  animation: llb-pop .28s cubic-bezier(.2, .9, .3, 1.3);
}
@keyframes llb-pop {
  from { opacity: 0; transform: scale(.86) translateY(20px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}
.logo-lightbox .llb-card img {
  display: block;
  max-width: 100%; max-height: 76vh;
  margin: 0 auto; border-radius: var(--radius-sm);
  background: #fff;
  /* 底色不是白色时给 LOGO 加亮白光晕 */
  filter: drop-shadow(0 0 24px rgba(255,255,255,.8)) drop-shadow(0 0 6px rgba(255,255,255,.4));
}
.logo-lightbox .llb-close {
  position: absolute; top: -14px; right: -14px;
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--accent); color: #fff; border: 0; cursor: pointer;
  display: grid; place-items: center;
  box-shadow: 0 8px 20px var(--accent-glow);
  transition: transform .2s ease, background .2s ease;
}
.logo-lightbox .llb-close:hover { transform: scale(1.08); background: var(--accent-700); }
.logo-lightbox .llb-close svg { width: 18px; height: 18px; }
.logo-lightbox .llb-cap {
  margin-top: 12px; text-align: center;
  color: var(--gray); font-size: 13.5px; font-weight: 600;
}

/* ===========================================================
   Hero
   =========================================================== */
.hero {
  position: relative; padding: 150px 0 90px; color: #fff; overflow: hidden;
  background:
    radial-gradient(1200px 600px at 85% -10%, rgba(162,155,254,.40), transparent 60%),
    radial-gradient(900px 500px at 0% 100%, rgba(255,77,46,.18), transparent 55%),
    linear-gradient(135deg, #1A0F4E 0%, #2D1B6E 50%, #4338CA 100%);
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(circle at 50% 40%, #000, transparent 75%);
  opacity: .55;
}
.hero .container { position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 9px; padding: 7px 15px; border-radius: 999px;
  background: rgba(255,255,255,.10); border: 1px solid rgba(255,255,255,.20); font-size: 13px; font-weight: 600; margin-bottom: 22px;
}
.hero-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: #A29BFE; box-shadow: 0 0 0 4px rgba(162,155,254,.30); }
.hero h1 { color: #fff; font-size: clamp(32px, 5.2vw, 60px); line-height: 1.12; margin-bottom: 20px; }
.hero h1 .grad { background: linear-gradient(90deg, #A29BFE, #5EEAD4); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { color: rgba(255,255,255,.85); max-width: 640px; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 56px; }
.hero-stat { background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.16); border-radius: var(--radius); padding: 20px 22px; }
.hero-stat .num { font-size: 30px; font-weight: 900; color: #fff; letter-spacing: -.02em; }
.hero-stat .num .unit { font-size: 16px; color: #A29BFE; margin-left: 3px; }
.hero-stat .lbl { font-size: 13px; color: rgba(255,255,255,.7); margin-top: 4px; }

/* ---------- 子页 Hero ---------- */
.subhero {
  background: linear-gradient(135deg, #1A0F4E 0%, #2D1B6E 55%, #4338CA 100%);
  color: #fff; padding: 132px 0 60px; position: relative; overflow: hidden;
}
.subhero::after { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px); background-size: 46px 46px; mask-image: radial-gradient(circle at 70% 20%, #000, transparent 70%); opacity: .55; }
.subhero .container { position: relative; z-index: 2; }
.subhero .h-eyebrow { color: #A29BFE; }
.subhero .h-eyebrow::before { background: #A29BFE; }
.subhero h1 { color: #fff; font-size: clamp(28px, 4vw, 46px); margin: 6px 0 14px; }
.subhero p { color: rgba(255,255,255,.85); max-width: 700px; }

/* ---------- 面包屑 ---------- */
.crumb { font-size: 13.5px; color: rgba(255,255,255,.6); margin-bottom: 14px; }
.crumb a:hover { color: #fff; }

/* ---------- 通用区块 ---------- */
section { padding: 84px 0; }
.section-head { margin-bottom: 46px; }
.section-head.center { text-align: center; }
.section-head.center .section-sub { margin-left: auto; margin-right: auto; }
.bg-soft { background: var(--bg-soft); }
.bg-dark { background: var(--bg-dark); color: #fff; }
.bg-dark h2, .bg-dark h3 { color: #fff; }
.bg-dark .section-sub { color: rgba(255,255,255,.7); }
.bg-dark .h-eyebrow { color: #A29BFE; }
.bg-dark .h-eyebrow::before { background: #A29BFE; }

/* ---------- 三大板块卡片 ---------- */
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.pillar {
  position: relative; border-radius: var(--radius); padding: 32px 28px; background: #fff; border: 1px solid var(--line);
  overflow: hidden; transition: transform .25s, box-shadow .25s;
}
.pillar:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.pillar .bar { position: absolute; top: 0; left: 0; right: 0; height: 5px; }
.pillar.b-accent .bar { background: linear-gradient(90deg, var(--accent), var(--accent-100)); }
.pillar.b-coral .bar { background: linear-gradient(90deg, var(--coral), #FF8A5C); }
.pillar.b-green .bar { background: linear-gradient(90deg, var(--green), #5BE0A0); }
.pillar .ic {
  width: 56px; height: 56px; border-radius: 14px; display: grid; place-items: center; font-size: 26px; margin-bottom: 18px;
}
.pillar.b-accent .ic { background: var(--accent-050); color: var(--accent); }
.pillar.b-coral .ic { background: var(--coral-050); color: var(--coral); }
.pillar.b-green .ic { background: var(--green-050); color: var(--green); }
.pillar h3 { font-size: 21px; margin-bottom: 10px; }
.pillar p { color: var(--gray); font-size: 15px; margin-bottom: 18px; }
.pillar .tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.pillar .tags span { font-size: 12.5px; padding: 5px 11px; border-radius: 999px; background: var(--bg-soft); color: var(--ink-2); font-weight: 600; }
.pillar .more { font-weight: 700; font-size: 14.5px; display: inline-flex; align-items: center; gap: 6px; }
.pillar.b-accent .more { color: var(--accent); }
.pillar.b-coral .more { color: var(--coral); }
.pillar.b-green .more { color: var(--green-600); }

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

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; transition: transform .2s, box-shadow .2s, border-color .2s;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: transparent; }
.card .ic { width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center; font-size: 22px; background: var(--accent-050); color: var(--accent); margin-bottom: 16px; }
.card h3 { font-size: 18px; margin-bottom: 8px; }
.card p { color: var(--gray); font-size: 14.5px; }

/* ---------- 项目 ---------- */
.projects { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.project { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: transform .2s, box-shadow .2s; }
.project:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.project .thumb { aspect-ratio: 4/3; display: grid; place-items: center; color: #fff; font-size: 56px; font-weight: 900; position: relative; }
.project .thumb.t1 { background: linear-gradient(135deg, #6450E4, #4338CA); }
.project .thumb.t2 { background: linear-gradient(135deg, #FF4D2E, #C73E1D); }
.project .thumb.t3 { background: linear-gradient(135deg, #00B894, #00866F); }
.project .thumb .tag { position: absolute; top: 12px; left: 12px; background: rgba(255,255,255,.18); backdrop-filter: blur(6px); padding: 4px 10px; border-radius: 999px; font-size: 12.5px; font-weight: 700; }
.project .body { padding: 18px 20px 22px; }
.project h3 { font-size: 17px; margin-bottom: 6px; }
.project .meta { font-size: 12.5px; color: var(--gray-2); margin-bottom: 8px; }
.project p { color: var(--gray); font-size: 14px; }
.project .tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.project .tags span { font-size: 11.5px; padding: 3px 9px; border-radius: 999px; background: var(--accent-050); color: var(--accent); font-weight: 600; }

/* ---------- 产品分类筛选 ---------- */
.pcats { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; }
.pcat {
  padding: 8px 18px; border-radius: 999px;
  background: #fff; border: 1px solid var(--line); color: var(--ink-2);
  font-weight: 600; font-size: 13.5px; cursor: pointer;
  transition: all .2s ease;
}
.pcat:hover { border-color: var(--accent); color: var(--accent); }
.pcat.active { background: var(--accent); color: #fff; border-color: var(--accent); box-shadow: 0 6px 18px var(--accent-soft); }

/* ---------- 报价表 ---------- */
.pricing-tool { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; margin-bottom: 22px; }
.pricing-tool input,
.pricing-tool select {
  height: 42px; padding: 0 16px; border: 1px solid var(--line); border-radius: 10px;
  font-family: inherit; font-size: 14px; color: var(--ink); background: #fff;
  transition: border-color .2s, box-shadow .2s;
}
.pricing-tool input { flex: 1; min-width: 240px; }
.pricing-tool input:focus,
.pricing-tool select:focus { outline: 0; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.pricing-tool .count {
  font-size: 13.5px; color: var(--gray); font-weight: 600;
  padding: 6px 14px; background: var(--accent-050); border-radius: 999px; color: var(--accent);
}
.price-table { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.price-table th { background: var(--bg-soft); font-weight: 700; color: var(--ink); text-align: left; padding: 14px 16px; font-size: 13.5px; letter-spacing: .04em; }
.price-table td { padding: 13px 16px; border-top: 1px solid var(--line); font-size: 14px; }
.price-table tr:hover td { background: var(--accent-soft); }
.price-table td.price { font-weight: 700; color: var(--accent); }

/* ---------- 团队 ---------- */
.team-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.member { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 24px; text-align: center; transition: transform .2s, box-shadow .2s; }
.member:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.member .m-ic {
  width: 84px; height: 84px; margin: 0 auto 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-050), var(--accent-100));
  color: var(--accent); display: grid; place-items: center; font-size: 36px;
}
.member h3 { font-size: 18px; margin-bottom: 4px; }
.member .m-role { color: var(--accent); font-size: 13px; font-weight: 700; margin-bottom: 12px; letter-spacing: .04em; }
.member p { color: var(--gray); font-size: 14px; margin-bottom: 14px; }
.member .tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; }
.member .tags span { font-size: 11.5px; padding: 3px 9px; border-radius: 999px; background: var(--bg-soft); color: var(--ink-2); font-weight: 600; }

/* ---------- 品牌双 LOGO 展示 ---------- */
.brand-showcase { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.brand-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 24px; text-align: center;
  transition: transform .2s, box-shadow .2s;
}
.brand-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.brand-card .bc-logo {
  background: linear-gradient(135deg, #1A0F4E, #4338CA);
  border-radius: var(--radius); padding: 24px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
  min-height: 120px;
}
.brand-card .bc-logo img {
  max-height: 80px; width: auto;
  filter: drop-shadow(0 0 12px rgba(255,255,255,.65)) drop-shadow(0 0 4px rgba(255,255,255,.4));
}
.brand-card h4 { font-size: 17px; margin-bottom: 6px; color: var(--ink); }
.brand-card p { color: var(--gray); font-size: 14px; margin-bottom: 8px; }
.brand-card small { color: var(--gray-2); font-size: 12.5px; }

/* ---------- 行业动态 ---------- */
.news-list { display: flex; flex-direction: column; gap: 10px; }
.nrow {
  display: grid; grid-template-columns: 110px 80px 1fr 1.2fr 110px;
  gap: 14px; align-items: center; padding: 16px 18px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.nrow:hover { transform: translateX(4px); border-color: var(--accent); box-shadow: 0 8px 24px var(--accent-soft); }
.nrow .n-date { color: var(--gray-2); font-size: 13px; font-weight: 600; }
.nrow .n-tag {
  font-size: 11.5px; font-weight: 700; padding: 3px 9px; border-radius: 999px;
  background: var(--accent-050); color: var(--accent); text-align: center;
}
.nrow .n-title { font-weight: 700; color: var(--ink); font-size: 14.5px; }
.nrow .n-sum { color: var(--gray); font-size: 13px; line-height: 1.5; }
.nrow .n-src { color: var(--gray-2); font-size: 12.5px; text-align: right; }

/* ---------- AI 对话浮窗 ---------- */
.chat-fab {
  position: fixed; right: 24px; bottom: 24px; z-index: 90;
  width: 56px; height: 56px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-700));
  color: #fff; border: 0; cursor: pointer;
  box-shadow: 0 14px 32px var(--accent-glow);
  transition: transform .2s ease, box-shadow .2s ease;
  display: grid; place-items: center;
}
.chat-fab svg { width: 22px; height: 22px; }
.chat-fab:hover { transform: translateY(-2px) scale(1.06); }
.chat-panel {
  position: fixed; right: 24px; bottom: 92px; z-index: 91;
  width: min(380px, 92vw); height: 520px; max-height: calc(100vh - 120px);
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  display: none; flex-direction: column; overflow: hidden;
  transform: translateY(8px); opacity: 0;
  transition: transform .25s ease, opacity .25s ease;
}
.chat-panel.open { display: flex; transform: translateY(0); opacity: 1; }
.chat-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; color: #fff; font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--accent-700));
}
.chat-head button { background: rgba(255,255,255,.18); border: 0; color: #fff; width: 28px; height: 28px; border-radius: 50%; cursor: pointer; display: grid; place-items: center; }
.chat-head button svg { width: 14px; height: 14px; }
.chat-log { flex: 1; padding: 14px; overflow-y: auto; display: flex; flex-direction: column; gap: 10px; background: var(--bg-soft); }
.chat-msg { max-width: 80%; padding: 10px 14px; border-radius: 14px; font-size: 14px; line-height: 1.5; }
.chat-msg.bot { background: #fff; color: var(--ink-2); border: 1px solid var(--line); align-self: flex-start; border-bottom-left-radius: 4px; }
.chat-msg.user { background: var(--accent); color: #fff; align-self: flex-end; border-bottom-right-radius: 4px; }
.chat-input {
  display: flex; gap: 8px; padding: 12px;
  border-top: 1px solid var(--line); background: #fff;
}
.chat-input input {
  flex: 1; height: 40px; padding: 0 14px; border-radius: 999px;
  border: 1px solid var(--line); font-family: inherit; font-size: 14px;
}
.chat-input input:focus { outline: 0; border-color: var(--accent); }
.chat-input button {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--accent); color: #fff; border: 0; cursor: pointer;
  display: grid; place-items: center; transition: background .2s ease;
}
.chat-input button:hover { background: var(--accent-700); }
.chat-input button svg { width: 18px; height: 18px; }

/* ---------- 页脚 ---------- */
.site-footer { background: #0A1020; color: rgba(255,255,255,.75); padding: 70px 0 30px; margin-top: 0; }
.site-footer h4 { color: #fff; font-size: 14.5px; margin-bottom: 18px; letter-spacing: .04em; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 36px; }
.footer-brand .brand { padding: 0; margin-bottom: 14px; }
.footer-brand .brand .brand-img { height: 44px; }
.footer-brand .brand .brand-glow { display: none; }
.footer-brand p { font-size: 13.5px; line-height: 1.7; margin-bottom: 10px; }
.footer-tm-note { font-size: 12.5px; opacity: .65; }
.footer-col a { display: block; padding: 5px 0; font-size: 13.5px; color: rgba(255,255,255,.7); transition: color .2s; }
.footer-col a:hover { color: var(--accent-100); }
.footer-bottom {
  margin-top: 50px; padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.1);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  font-size: 12.5px; color: rgba(255,255,255,.5);
}

/* ---------- 表单 / 按钮补充 ---------- */
.btn-block { width: 100%; justify-content: center; }

/* ---------- 入场动画 ---------- */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }

/* ===========================================================
   业务组件 — statbar / flow / arch / cta-band / form-grid 等
   （此前无样式，移动端需完整响应式）
   =========================================================== */

/* ---------- 统计条 statbar ---------- */
.statbar { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.stat {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 18px; text-align: center;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.stat:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: transparent; }
.stat .num { font-size: 34px; font-weight: 900; color: var(--accent); letter-spacing: -.02em; line-height: 1.1; }
.stat .lbl { font-size: 13.5px; color: var(--gray); margin-top: 6px; }

/* ---------- 流程 steps flow ---------- */
.flow { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 18px; }
.step {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 22px;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.step:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: transparent; }
.step .k {
  display: inline-grid; place-items: center; width: 44px; height: 44px; margin-bottom: 14px;
  border-radius: 13px; background: var(--accent-050); color: var(--accent);
  font-weight: 800; font-size: 18px;
}
.step h4 { font-size: 17px; margin-bottom: 6px; }
.step p { color: var(--gray); font-size: 14px; }

/* ---------- 架构层 arch ---------- */
.arch { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.layer {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px; position: relative; overflow: hidden;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.layer:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: transparent; }
.layer .lx {
  display: inline-block; font-size: 12px; font-weight: 800; letter-spacing: .08em;
  color: var(--accent); background: var(--accent-050); padding: 5px 12px; border-radius: 999px; margin-bottom: 12px;
}
.layer h3 { font-size: 19px; margin-bottom: 12px; }
.layer ul { display: flex; flex-direction: column; gap: 9px; }
.layer li { position: relative; padding-left: 18px; color: var(--gray); font-size: 14.5px; }
.layer li::before { content: ""; position: absolute; left: 0; top: 9px; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
.layer.l-device .lx { color: var(--accent); background: var(--accent-050); }
.layer.l-device li::before { background: var(--accent); }
.layer.l-edge .lx { color: var(--coral); background: var(--coral-050); }
.layer.l-edge li::before { background: var(--coral); }
.layer.l-cloud .lx { color: var(--green-600); background: var(--green-050); }
.layer.l-cloud li::before { background: var(--green); }

/* ---------- CTA 带 cta-band（默认紫底，内联渐变可覆盖）---------- */
.cta-band {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 38px 40px; border-radius: var(--radius);
  color: #fff; background: linear-gradient(135deg, var(--accent), var(--accent-700));
}
.cta-band h2 { color: #fff; font-size: clamp(22px, 2.6vw, 30px); margin-bottom: 8px; }
.cta-band p { color: rgba(255,255,255,.86); font-size: 15.5px; max-width: 640px; }
.cta-band > a, .cta-band > div:last-child { flex: none; }
.cta-band .btn-ghost { background: rgba(255,255,255,.14); color: #fff; border-color: rgba(255,255,255,.35); }

/* ---------- 产品分类条 products-bar ---------- */
.products-bar { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; }

/* ---------- 表单 form-grid ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-grid .field { display: flex; flex-direction: column; gap: 7px; }
.form-grid .field.full { grid-column: 1 / -1; }
.form-grid label { font-size: 13.5px; font-weight: 700; color: var(--ink-2); }
.form-grid input, .form-grid select, .form-grid textarea {
  width: 100%; padding: 11px 14px; border: 1px solid var(--line); border-radius: 10px;
  font-family: inherit; font-size: 14.5px; color: var(--ink); background: #fff;
  transition: border-color .2s, box-shadow .2s;
}
.form-grid input:focus, .form-grid select:focus, .form-grid textarea:focus { outline: 0; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.form-grid textarea { min-height: 110px; resize: vertical; }
.form-grid button { width: 100%; }

/* ---------- 报价表横向滚动容器 ---------- */
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: var(--radius); }
.price-table { min-width: 640px; }

/* ---------- 报价说明 ---------- */
.price-note { margin-top: 18px; font-size: 13.5px; color: var(--gray); line-height: 1.6; }
.price-note a { color: var(--accent); font-weight: 700; }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .pillars { grid-template-columns: 1fr; }
  .grid-3, .grid-4, .projects, .team-grid, .brand-showcase { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .statbar { grid-template-columns: repeat(2, 1fr); }
  .cta-band { flex-wrap: wrap; }
}
/* 中等屏幕：菜单折叠为汉堡，避免横向拥挤/竖排 */
@media (max-width: 1100px) {
  .nav-links { display: none; position: absolute; top: 76px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--line); flex-direction: column; padding: 14px 24px; gap: 4px; box-shadow: var(--shadow); overflow: visible; }
  .nav-links.open { display: flex; }
  .nav-links > li { width: 100%; }
  .nav-links > li > a { padding: 12px 8px; font-size: 15px; }
  .nav-links > li > a::after { display: none; }
  .nav-toggle { display: block; }
  .nav-tools { margin-left: auto; }
}
@media (max-width: 720px) {
  .grid-2, .grid-3, .grid-4, .projects, .team-grid, .brand-showcase { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
  .hero { padding: 100px 0 54px; }
  .subhero { padding: 104px 0 44px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .container { padding: 0 18px; }
  section { padding: 56px 0; }
  .nrow { grid-template-columns: 1fr; gap: 4px; padding: 14px; }
  .nrow .n-src { text-align: left; }
  .brand .brand-zoom { opacity: 1; transform: scale(1); }
  .statbar { grid-template-columns: repeat(2, 1fr); }
  .arch { grid-template-columns: 1fr; }
  .flow { grid-template-columns: 1fr; }
  .cta-band { flex-direction: column; align-items: flex-start; text-align: left; padding: 28px 22px; gap: 18px; }
  .form-grid { grid-template-columns: 1fr; }
  .pricing-tool input { min-width: 0; flex: 1 1 100%; }
  .pricing-tool select { flex: 1 1 100%; }
  .chat-panel { width: calc(100vw - 32px); right: 16px; bottom: 84px; }
}