/* ============================================================
   烯康集团 XIKANG GROUP · 官网 UI 设计稿
   Design System v1.0 — 石墨烯科技 × 东方温养
   主色: 深海蓝 Navy / 科技青 Teal / 暖橙 Amber(温度/CTA)
   视觉母题: 石墨烯六边形晶格
   ============================================================ */

:root {
  /* 色彩系统 */
  --ink: #0B1B33;            /* 主文字 · 石墨蓝黑 */
  --ink-2: #3D4F66;          /* 次级文字 */
  --muted: #7C8BA1;          /* 弱化文字 */
  --line: #E3EAF3;           /* 分割线 */
  --bg: #F5F8FC;             /* 浅色板块背景 */
  --white: #FFFFFF;

  --navy-900: #061629;       /* 石墨深空 */
  --navy-800: #0A2240;
  --navy-700: #10315A;

  --blue: #0B63CE;           /* 品牌蓝 */
  --blue-deep: #0848A0;
  --teal: #14D3C3;           /* 科技青(石墨烯) */
  --teal-soft: #E4FAF7;
  --cyan-glow: #4FE3FF;

  --amber: #FF8A3D;          /* 暖感 · 温度 */
  --amber-deep: #F26B1D;
  --amber-soft: #FFF3E9;

  --grad-brand: linear-gradient(135deg, #0B63CE 0%, #14D3C3 100%);
  --grad-warm: linear-gradient(135deg, #FF8A3D 0%, #FFB35C 100%);
  --grad-deep: linear-gradient(160deg, #0A2240 0%, #061629 60%, #04101F 100%);

  /* 字体 */
  --font: "PingFang SC", "HarmonyOS Sans SC", "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-num: "DIN Alternate", "Barlow", "Avenir Next", "PingFang SC", sans-serif;

  /* 圆角 / 阴影 */
  --r-lg: 22px;
  --r-md: 16px;
  --r-sm: 10px;
  --shadow-card: 0 6px 24px rgba(11, 27, 51, .07);
  --shadow-lift: 0 18px 44px rgba(11, 27, 51, .14);
  --shadow-glow-teal: 0 10px 34px rgba(20, 211, 195, .32);
  --shadow-glow-amber: 0 10px 30px rgba(255, 138, 61, .32);

  --container: 1280px;
  --header-h: 76px;
}

/* ============ Reset ============ */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; }
::selection { background: rgba(20, 211, 195, .28); }

/* ============ 工具类 ============ */
.container { max-width: var(--container); margin: 0 auto; padding: 0 32px; }
.section { padding: 96px 0; position: relative; }
.section-tight { padding: 72px 0; }
.bg-light { background: var(--bg); }
.bg-deep { background: var(--grad-deep); color: #DCE8F5; }
.grad-text { background: var(--grad-brand); -webkit-background-clip: text; background-clip: text; color: transparent; }
.num { font-family: var(--font-num); font-variant-numeric: tabular-nums; }

/* 板块标题组 */
.sec-head { max-width: 760px; margin: 0 auto 56px; text-align: center; }
.sec-head.left { text-align: left; margin-left: 0; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 14px; font-weight: 600; letter-spacing: 4px;
  color: var(--blue); text-transform: uppercase;
}
.eyebrow::before, .eyebrow::after {
  content: ""; width: 9px; height: 10px; flex: none;
  background: var(--grad-brand);
  clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
}
.eyebrow.left::after { display: none; }
.bg-deep .eyebrow { color: var(--teal); }
.bg-deep .eyebrow::before, .bg-deep .eyebrow::after { background: var(--teal); }
.sec-title { font-size: 40px; font-weight: 700; line-height: 1.3; margin: 14px 0 12px; letter-spacing: 1px; }
.sec-title .hl { color: var(--blue); position: relative; }
.bg-deep .sec-title .hl { color: var(--teal); }
.sec-desc { color: var(--muted); font-size: 17px; }
.bg-deep .sec-desc { color: #93A9C4; }

/* ============ 按钮 ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 14px 32px; border-radius: 999px;
  font-size: 16px; font-weight: 600; cursor: pointer;
  transition: all .3s cubic-bezier(.4, 0, .2, 1);
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; }
.btn-primary { background: var(--grad-brand); color: #fff; box-shadow: var(--shadow-glow-teal); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 16px 40px rgba(11, 99, 206, .38); }
.btn-warm { background: var(--grad-warm); color: #fff; box-shadow: var(--shadow-glow-amber); }
.btn-warm:hover { transform: translateY(-3px); }
.btn-ghost { background: transparent; color: #fff; border: 1.5px solid rgba(255, 255, 255, .45); }
.btn-ghost:hover { border-color: var(--teal); color: var(--teal); background: rgba(20, 211, 195, .06); }
.btn-outline { background: #fff; color: var(--blue); border: 1.5px solid var(--blue); }
.btn-outline:hover { background: var(--blue); color: #fff; }
.btn-lg { padding: 17px 42px; font-size: 17px; }
.btn-sm { padding: 9px 22px; font-size: 14px; }

/* ============ 顶部 TopBar ============ */
.topbar { background: var(--navy-900); color: #9FB4CC; font-size: 13px; }
.topbar-in { display: flex; justify-content: space-between; align-items: center; height: 38px; }
.topbar .slogan { display: flex; align-items: center; gap: 8px; letter-spacing: 2px; }
.topbar .slogan i { width: 8px; height: 9px; background: var(--teal); display: inline-block;
  clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%); }
.topbar-links { display: flex; gap: 26px; align-items: center; }
.topbar-links a { transition: color .25s; }
.topbar-links a:hover { color: var(--teal); }
.topbar .tel { color: #fff; font-weight: 600; font-family: var(--font-num); letter-spacing: 1px; }

/* ============ 主导航 Header ============ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(227, 234, 243, .8);
  transition: box-shadow .3s;
}
.site-header.scrolled { box-shadow: 0 8px 30px rgba(11, 27, 51, .08); }
.nav-in { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); }

/* Logo */
.logo { display: flex; align-items: center; gap: 13px; }
.logo-mark { width: 44px; height: 48px; position: relative; flex: none; }
.logo-mark .hex-a { position: absolute; inset: 0; fill: url(#logoGrad); }
.logo-mark .hex-b { position: absolute; inset: 7px 7px 13px 7px; fill: rgba(255,255,255,.92); }
.logo-mark .core { position: absolute; left: 50%; top: 52%; width: 7px; height: 7px; transform: translate(-50%,-50%);
  background: var(--amber); clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%); }
.logo-name { font-size: 22px; font-weight: 800; letter-spacing: 3px; color: var(--ink); line-height: 1.2; }
.logo-name small { display: block; font-size: 10.5px; font-weight: 600; letter-spacing: 3.2px; color: var(--muted); }

/* 主菜单 */
.main-nav { display: flex; align-items: center; gap: 8px; }
.main-nav > li { position: relative; }
.main-nav > li > a {
  display: block; padding: 10px 20px; font-size: 16.5px; font-weight: 500;
  color: var(--ink-2); border-radius: 10px; transition: all .25s;
}
.main-nav > li > a:hover, .main-nav > li.active > a { color: var(--blue); background: rgba(11, 99, 206, .06); }
.main-nav > li.active > a { font-weight: 700; }
.main-nav > li > a .arr { font-size: 11px; margin-left: 5px; transition: transform .25s; }
.main-nav > li.has-sub:hover .arr { transform: rotate(180deg); }

/* 下拉子菜单 */
.submenu {
  position: absolute; top: calc(100% + 14px); left: 50%; transform: translateX(-50%) translateY(8px);
  background: #fff; border-radius: var(--r-md); box-shadow: var(--shadow-lift);
  padding: 10px; min-width: 172px; opacity: 0; visibility: hidden;
  transition: all .28s cubic-bezier(.4, 0, .2, 1); border: 1px solid var(--line);
}
.main-nav > li.has-sub:hover .submenu { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.submenu::before { content: ""; position: absolute; top: -14px; left: 0; right: 0; height: 14px; }
.submenu a { display: block; padding: 10px 18px; border-radius: 9px; font-size: 15px; color: var(--ink-2); transition: all .2s; }
.submenu a:hover { background: var(--teal-soft); color: var(--blue-deep); font-weight: 600; }

.nav-cta { display: flex; align-items: center; gap: 16px; }
.nav-cta .consult {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--grad-brand); color: #fff; font-weight: 600;
  padding: 11px 24px; border-radius: 999px; font-size: 15px;
  box-shadow: var(--shadow-glow-teal); transition: all .3s; cursor: pointer;
}
.nav-cta .consult:hover { transform: translateY(-2px); }
.nav-cta .consult .dot { width: 8px; height: 8px; border-radius: 50%; background: #B6FF5C; box-shadow: 0 0 0 0 rgba(182,255,92,.7); animation: pulse 2s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 9px rgba(182,255,92,0); } 100% { box-shadow: 0 0 0 0 rgba(182,255,92,0); } }

/* 汉堡菜单按钮(移动端) */
.menu-toggle { display: none; width: 44px; height: 44px; border-radius: 12px; background: var(--bg); cursor: pointer; position: relative; }
.menu-toggle span { position: absolute; left: 12px; right: 12px; height: 2px; background: var(--ink); border-radius: 2px; transition: all .3s; }
.menu-toggle span:nth-child(1) { top: 16px; } .menu-toggle span:nth-child(2) { top: 21px; } .menu-toggle span:nth-child(3) { top: 26px; }
.menu-toggle.open span:nth-child(1) { top: 21px; transform: rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { top: 21px; transform: rotate(-45deg); }

/* ============ 页面 Hero(内页) ============ */
.page-hero {
  position: relative; overflow: hidden;
  background: var(--grad-deep);
  padding: 88px 0 96px; color: #fff;
}
.page-hero .crumbs { font-size: 14px; color: #8FA6C2; margin-bottom: 18px; display: flex; align-items: center; gap: 8px; }
.page-hero .crumbs a:hover { color: var(--teal); }
.page-hero .crumbs .sep { opacity: .5; }
.page-hero h1 { font-size: 46px; font-weight: 800; letter-spacing: 2px; line-height: 1.25; }
.page-hero .sub { margin-top: 14px; color: #9DB2CD; font-size: 17px; max-width: 640px; }
.page-hero .hex-deco { position: absolute; right: -60px; top: 50%; transform: translateY(-50%); width: 520px; opacity: .5; pointer-events: none; }

/* ============ 视觉占位(产品图位) ============ */
.visual {
  position: relative; overflow: hidden; border-radius: var(--r-md);
  display: flex; align-items: center; justify-content: center;
}
.visual .ph-icon { width: 44%; height: auto; opacity: .95; filter: drop-shadow(0 12px 24px rgba(4, 18, 34, .18)); }
.visual .ph-tag {
  position: absolute; left: 12px; bottom: 10px; font-size: 11px; letter-spacing: 1.5px;
  color: rgba(255,255,255,.75); border: 1px solid rgba(255,255,255,.35);
  padding: 2px 9px; border-radius: 999px; backdrop-filter: blur(4px);
}
.v-blue { background: linear-gradient(145deg, #DCEBFF 0%, #B9D6F8 55%, #9CC4F2 100%); }
.v-teal { background: linear-gradient(145deg, #DDF7F4 0%, #B5EDE6 55%, #98E4DB 100%); }
.v-amber { background: linear-gradient(145deg, #FFEEDD 0%, #FFD9B4 55%, #FFC795 100%); }
.v-navy { background: linear-gradient(145deg, #16314F 0%, #0C2140 55%, #081A33 100%); }
.v-mist { background: linear-gradient(145deg, #EEF3F9 0%, #DFE9F4 60%, #D3E1F0 100%); }

/* 六边形晶格纹理层 */
.hexlayer {
  position: absolute; inset: 0; opacity: .16; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='97' viewBox='0 0 56 97'%3E%3Cpath d='M28 0 56 16.17v32.33L28 64.67 0 48.5V16.17zM28 64.67 56 80.83v16.17M28 64.67 0 80.83v16.17' fill='none' stroke='%23ffffff' stroke-width='1.4'/%3E%3C/svg%3E");
  background-size: 56px 97px;
}
.hexlayer.dark { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='97' viewBox='0 0 56 97'%3E%3Cpath d='M28 0 56 16.17v32.33L28 64.67 0 48.5V16.17zM28 64.67 56 80.83v16.17M28 64.67 0 80.83v16.17' fill='none' stroke='%230B63CE' stroke-width='1.4'/%3E%3C/svg%3E"); }

/* ============ 首页 Banner 轮播 ============ */
.hero { position: relative; height: 660px; overflow: hidden; background: var(--navy-900); }
.hero-slide {
  position: absolute; inset: 0; display: flex; align-items: center;
  opacity: 0; visibility: hidden; transition: opacity .9s ease, visibility .9s;
  color: #fff;
}
.hero-slide.active { opacity: 1; visibility: visible; }
.hero-bg { position: absolute; inset: 0; }
.hero-bg-1 { background: radial-gradient(1100px 600px at 78% 30%, rgba(20, 211, 195, .25), transparent 60%), radial-gradient(900px 560px at 12% 78%, rgba(11, 99, 206, .38), transparent 55%), linear-gradient(160deg, #0A2240, #061629 65%); }
.hero-bg-2 { background: radial-gradient(1000px 620px at 20% 30%, rgba(255, 138, 61, .16), transparent 58%), radial-gradient(1000px 600px at 85% 75%, rgba(20, 211, 195, .28), transparent 55%), linear-gradient(160deg, #08203C, #061629 60%); }
.hero-bg-3 { background: radial-gradient(1100px 640px at 70% 70%, rgba(79, 227, 255, .18), transparent 55%), radial-gradient(800px 500px at 15% 25%, rgba(11, 99, 206, .4), transparent 55%), linear-gradient(160deg, #0A2240, #04101F 62%); }
.hero-in { position: relative; z-index: 2; display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
.hero-kicker {
  display: inline-flex; align-items: center; gap: 10px; font-size: 14.5px; letter-spacing: 3px;
  color: var(--teal); border: 1px solid rgba(20, 211, 195, .4); background: rgba(20, 211, 195, .08);
  padding: 7px 18px; border-radius: 999px; margin-bottom: 26px;
}
.hero-kicker .live { width: 7px; height: 7px; border-radius: 50%; background: var(--teal); animation: pulse2 2s infinite; }
@keyframes pulse2 { 50% { opacity: .3; } }
.hero-title { font-size: 58px; font-weight: 800; line-height: 1.22; letter-spacing: 1px; }
.hero-title .line2 { background: linear-gradient(90deg, #4FE3FF, #14D3C3); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-desc { margin: 24px 0 38px; color: #A9BDD8; font-size: 18px; max-width: 520px; }
.hero-actions { display: flex; gap: 18px; flex-wrap: wrap; }
.hero-visual { position: relative; height: 480px; }
.hero-visual .orb { position: absolute; border-radius: 50%; filter: blur(2px); }
.hero-visual .panel {
  position: absolute; background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .14);
  backdrop-filter: blur(14px); border-radius: 18px; color: #EAF3FB;
}
.hero-dots { position: absolute; left: 50%; transform: translateX(-50%); bottom: 30px; display: flex; gap: 12px; z-index: 5; }
.hero-dots button { width: 34px; height: 5px; border-radius: 99px; background: rgba(255,255,255,.28); cursor: pointer; transition: all .35s; }
.hero-dots button.active { background: var(--grad-brand); width: 52px; }
.hero-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 5;
  width: 52px; height: 52px; border-radius: 50%; cursor: pointer;
  background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.18);
  color: #fff; font-size: 20px; display: flex; align-items: center; justify-content: center;
  transition: all .3s; backdrop-filter: blur(8px);
}
.hero-arrow:hover { background: var(--teal); border-color: var(--teal); }
.hero-arrow.prev { left: 26px; } .hero-arrow.next { right: 26px; }
.hero-slide .float-chip { position: absolute; z-index: 3; }

/* ============ 数据统计条 ============ */
.stats-band { background: var(--navy-800); border-top: 1px solid rgba(255,255,255,.06); color: #fff; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat-cell { padding: 44px 20px; text-align: center; position: relative; }
.stat-cell + .stat-cell::before { content: ""; position: absolute; left: 0; top: 28%; bottom: 28%; width: 1px; background: rgba(255,255,255,.1); }
.stat-num { font-size: 44px; font-weight: 700; font-family: var(--font-num); line-height: 1.15; }
.stat-num .unit { font-size: 20px; margin-left: 3px; color: var(--teal); }
.stat-label { color: #9DB2CD; font-size: 15px; margin-top: 6px; letter-spacing: 2px; }

/* ============ 通用卡片 ============ */
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  box-shadow: var(--shadow-card); transition: all .35s cubic-bezier(.4,0,.2,1);
}
.card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lift); border-color: rgba(20, 211, 195, .45); }

/* 品牌理念 */
.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.value-card { padding: 42px 34px; position: relative; overflow: hidden; }
.value-card .hexbadge {
  width: 64px; height: 70px; display: flex; align-items: center; justify-content: center; margin-bottom: 24px;
  color: #fff; position: relative;
  clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
}
.value-card:nth-child(1) .hexbadge { background: var(--grad-brand); }
.value-card:nth-child(2) .hexbadge { background: var(--grad-warm); }
.value-card:nth-child(3) .hexbadge { background: linear-gradient(135deg, #16314F, #0A2240); }
.value-card .hexbadge svg { width: 30px; height: 30px; }
.value-card h3 { font-size: 22px; font-weight: 700; margin-bottom: 12px; }
.value-card p { color: var(--muted); font-size: 15.5px; }
.value-card .ghost-num {
  position: absolute; right: 18px; top: 6px; font-family: var(--font-num); font-size: 84px; font-weight: 800;
  color: transparent; -webkit-text-stroke: 1.5px rgba(11, 27, 51, .07); line-height: 1;
}

/* 产业赛道 */
.track-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.track-card { border-radius: var(--r-lg); overflow: hidden; position: relative; min-height: 480px; display: flex; align-items: flex-end; color: #fff; }
.track-card .tk-bg { position: absolute; inset: 0; }
.track-card.tk-health .tk-bg { background: linear-gradient(200deg, rgba(10,34,64,.15) 20%, rgba(6,22,41,.88)), linear-gradient(145deg, #B5EDE6, #6FD8CB); }
.track-card.tk-medical .tk-bg { background: linear-gradient(200deg, rgba(10,34,64,.15) 20%, rgba(6,22,41,.88)), linear-gradient(145deg, #B9D6F8, #7FA9EC); }
.track-card .hexlayer { opacity: .1; }
.tk-body { position: relative; z-index: 2; padding: 44px; width: 100%; }
.tk-tag { display: inline-block; font-size: 13px; letter-spacing: 3px; border: 1px solid rgba(255,255,255,.4); padding: 5px 14px; border-radius: 999px; margin-bottom: 16px; }
.tk-body h3 { font-size: 32px; font-weight: 800; }
.tk-body p { color: #C4D6E9; margin: 12px 0 22px; font-size: 15.5px; }
.tk-points { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 26px; }
.tk-points span { font-size: 13.5px; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.16); padding: 6px 14px; border-radius: 999px; backdrop-filter: blur(6px); }
.tk-link { color: var(--teal); font-weight: 600; font-size: 15px; display: inline-flex; align-items: center; gap: 7px; }
.tk-link:hover { gap: 12px; }

/* 产品卡 */
.prod-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.prod-card { overflow: hidden; cursor: pointer; }
.prod-card .visual { height: 250px; }
.prod-body { padding: 24px 24px 26px; }
.prod-cat { font-size: 12.5px; color: var(--teal); font-weight: 700; letter-spacing: 2px; }
.prod-body h3 { font-size: 19px; font-weight: 700; margin: 7px 0 10px; }
.prod-body p { color: var(--muted); font-size: 14px; line-height: 1.65; min-height: 46px; }
.prod-foot { display: flex; justify-content: space-between; align-items: center; margin-top: 18px; padding-top: 16px; border-top: 1px dashed var(--line); }
.prod-foot .hot { font-size: 13px; color: var(--amber-deep); background: var(--amber-soft); padding: 4px 12px; border-radius: 999px; font-weight: 600; }
.prod-foot .more { font-size: 14px; color: var(--blue); font-weight: 600; }

/* 技术原理 */
.tech-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.tech-diagram { position: relative; aspect-ratio: 1; display: flex; align-items: center; justify-content: center; }
.tech-ring { position: absolute; border-radius: 50%; border: 1px dashed rgba(79, 227, 255, .3); }
.tech-ring.r1 { inset: 0; animation: spin 40s linear infinite; }
.tech-ring.r2 { inset: 11%; border-color: rgba(20, 211, 195, .35); animation: spin 28s linear infinite reverse; }
.tech-ring.r3 { inset: 22%; border-color: rgba(255, 138, 61, .3); animation: spin 20s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.tech-core {
  width: 46%; aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle at 34% 30%, rgba(79,227,255,.5), rgba(11,99,206,.55) 45%, rgba(6,22,41,.9));
  box-shadow: 0 0 90px rgba(20, 211, 195, .35), inset 0 0 60px rgba(79, 227, 255, .3);
  display: flex; align-items: center; justify-content: center; position: relative;
}
.tech-core svg { width: 56%; }
.tech-list .tech-item { display: flex; gap: 20px; padding: 24px 0; border-bottom: 1px solid rgba(255,255,255,.09); }
.tech-list .tech-item:first-child { padding-top: 0; }
.tech-idx { font-family: var(--font-num); font-size: 15px; font-weight: 700; color: var(--teal); border: 1px solid rgba(20,211,195,.4); width: 44px; height: 44px; border-radius: 13px; display: flex; align-items: center; justify-content: center; flex: none; }
.tech-list h4 { color: #fff; font-size: 19px; font-weight: 700; margin-bottom: 6px; }
.tech-list p { color: #93A9C4; font-size: 14.5px; }

/* 荣誉资质 */
.honor-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.honor-card { padding: 34px 26px; text-align: center; position: relative; }
.honor-card .h-ico { width: 66px; height: 66px; margin: 0 auto 18px; border-radius: 18px; display: flex; align-items: center; justify-content: center;
  background: var(--teal-soft); color: var(--blue); }
.honor-card:nth-child(even) .h-ico { background: var(--amber-soft); color: var(--amber-deep); }
.honor-card .h-ico svg { width: 32px; height: 32px; }
.honor-card h4 { font-size: 17.5px; font-weight: 700; }
.honor-card p { color: var(--muted); font-size: 13.5px; margin-top: 8px; }
.honor-card .vline { position: absolute; top: 26px; bottom: 26px; right: -12px; width: 1px; background: var(--line); }
.honor-grid .honor-card:nth-child(4n) .vline { display: none; }

/* 健康科普 / 新闻卡 */
.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.article-card { overflow: hidden; }
.article-card .visual, .article-card .pic { height: 200px; position: relative; overflow: hidden; }
.article-card .pic img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.article-card:hover .pic img { transform: scale(1.06); }
.article-body { padding: 24px; }
.a-meta { display: flex; gap: 12px; font-size: 13px; color: var(--muted); margin-bottom: 10px; align-items: center; }
.a-tag { font-size: 12px; padding: 3px 11px; border-radius: 999px; font-weight: 600; }
.a-tag.t1 { color: var(--blue); background: rgba(11,99,206,.08); }
.a-tag.t2 { color: var(--teal); background: rgba(20,211,195,.1); }
.a-tag.t3 { color: var(--amber-deep); background: var(--amber-soft); }
.article-body h3 { font-size: 18.5px; font-weight: 700; line-height: 1.5; margin-bottom: 10px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.article-body p { color: var(--muted); font-size: 14.5px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* 新闻列表 */
.news-list-card { padding: 36px; display: grid; grid-template-columns: 210px 1fr; gap: 28px; align-items: center; }
.news-list-card .visual { height: 140px; }
.news-list-card h3 { font-size: 20px; font-weight: 700; margin: 8px 0 10px; }
.news-list-card p { color: var(--muted); font-size: 14.5px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-date { font-family: var(--font-num); color: var(--muted); font-size: 14px; display: flex; align-items: center; gap: 8px; }

/* 转化 CTA */
.cta-band { position: relative; overflow: hidden; border-radius: 28px; padding: 64px 72px;
  background: var(--grad-deep); color: #fff; display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.cta-band h3 { font-size: 34px; font-weight: 800; letter-spacing: 1px; }
.cta-band p { color: #9DB2CD; margin-top: 12px; font-size: 16.5px; }
.cta-actions { display: flex; gap: 16px; flex-wrap: wrap; flex: none; }

/* ============ 页脚 ============ */
.site-footer { background: #04101F; color: #93A9C4; font-size: 14.5px; }
.footer-main { display: grid; grid-template-columns: 1.35fr 1fr 1fr 1.25fr; gap: 44px; padding: 70px 0 54px; }
.footer-brand .logo-name { color: #fff; }
.footer-brand .logo-name small { color: #6E86A3; }
.footer-brand p { margin: 20px 0 24px; line-height: 1.85; }
.f-title { color: #fff; font-size: 16.5px; font-weight: 700; margin-bottom: 22px; letter-spacing: 1px; position: relative; padding-left: 14px; }
.f-title::before { content: ""; position: absolute; left: 0; top: 6px; bottom: 6px; width: 4px; border-radius: 2px; background: var(--grad-brand); }
.footer-col li { margin-bottom: 12px; }
.footer-col a { transition: all .25s; }
.footer-col a:hover { color: var(--teal); padding-left: 4px; }
.f-contact li { display: flex; gap: 11px; margin-bottom: 15px; line-height: 1.6; }
.f-contact svg { width: 17px; height: 17px; flex: none; margin-top: 4px; color: var(--teal); }
.footer-qrcode { width: 118px; height: 118px; border-radius: 14px; background: #fff; padding: 9px; margin-top: 4px; }
.footer-qrcode svg { width: 100%; height: 100%; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 24px 0; }
.footer-bottom .fb-in { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; font-size: 13.5px; color: #6E86A3; }
.footer-bottom a { color: #8FA6C2; } .footer-bottom a:hover { color: var(--teal); }
.footer-disclaimer { margin-top: 10px; font-size: 12.5px; color: #586E8A; line-height: 1.8; }

/* 悬浮工具条 */
.float-bar { position: fixed; right: 22px; bottom: 88px; z-index: 90; display: flex; flex-direction: column; gap: 12px; }
.float-btn { width: 54px; height: 54px; border-radius: 16px; display: flex; align-items: center; justify-content: center; cursor: pointer;
  background: #fff; box-shadow: var(--shadow-lift); color: var(--blue); transition: all .3s; border: 1px solid var(--line); }
.float-btn:hover { transform: translateY(-4px); }
.float-btn.tel { background: var(--grad-warm); color: #fff; border: none; }
.float-btn.top { opacity: 0; visibility: hidden; }
.float-btn.top.show { opacity: 1; visibility: visible; }
.float-btn svg { width: 24px; height: 24px; }

/* ============ 表单 ============ */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.form-field label { display: block; font-weight: 600; font-size: 15px; margin-bottom: 9px; }
.form-field label .req { color: #E5484D; margin-left: 3px; }
.form-field input, .form-field select, .form-field textarea {
  width: 100%; padding: 14px 18px; border-radius: 13px; border: 1.5px solid var(--line);
  background: #FAFCFE; transition: all .25s; font-size: 15.5px; color: var(--ink);
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  border-color: var(--teal); background: #fff; box-shadow: 0 0 0 4px rgba(20, 211, 195, .12);
}
.form-field.full { grid-column: 1 / -1; }
.form-field select { appearance: none; -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='9' viewBox='0 0 14 9'%3E%3Cpath d='M1 1l6 6 6-6' fill='none' stroke='%237C8BA1' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 18px center; }
.form-privacy { grid-column: 1 / -1; font-size: 13px; color: var(--muted); display: flex; gap: 8px; align-items: flex-start; line-height: 1.7; }
.form-privacy input { margin-top: 4px; accent-color: var(--teal); width: 15px; height: 15px; flex: none; }
.form-privacy a { color: var(--blue); }

/* ============ 标签页 Tabs ============ */
.tabs { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 48px; }
.tab-btn {
  padding: 12px 30px; border-radius: 999px; font-size: 15.5px; font-weight: 600; cursor: pointer;
  background: #fff; color: var(--ink-2); border: 1.5px solid var(--line); transition: all .3s;
}
.tab-btn:hover { border-color: var(--teal); color: var(--blue); }
.tab-btn.active { background: var(--grad-brand); color: #fff; border-color: transparent; box-shadow: var(--shadow-glow-teal); }

/* ============ 时间轴(发展历程) ============ */
.timeline { position: relative; padding: 10px 0; }
.timeline::before { content: ""; position: absolute; left: 50%; top: 0; bottom: 0; width: 2px; transform: translateX(-50%);
  background: linear-gradient(180deg, transparent, var(--line) 8%, var(--line) 92%, transparent); }
.tl-item { position: relative; width: 50%; padding: 0 52px 52px 0; }
.tl-item:nth-child(even) { margin-left: 50%; padding: 0 0 52px 52px; }
.tl-item .tl-dot { position: absolute; top: 6px; right: -8px; width: 16px; height: 16px; border-radius: 50%;
  background: #fff; border: 4px solid var(--teal); box-shadow: 0 0 0 5px rgba(20,211,195,.15); }
.tl-item:nth-child(even) .tl-dot { right: auto; left: -8px; }
.tl-year { font-family: var(--font-num); font-size: 30px; font-weight: 800; color: var(--blue); }
.tl-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-md); padding: 22px 26px; margin-top: 10px; box-shadow: var(--shadow-card); }
.tl-card h4 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
.tl-card p { font-size: 14px; color: var(--muted); }

/* ============ 产品详情 ============ */
.detail-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.detail-gallery .main-view { height: 480px; border-radius: var(--r-lg); }
.detail-thumbs { display: flex; gap: 14px; margin-top: 16px; }
.detail-thumbs .visual { width: 104px; height: 88px; cursor: pointer; border: 2px solid transparent; transition: all .25s; }
.detail-thumbs .visual.active, .detail-thumbs .visual:hover { border-color: var(--teal); }
.detail-info .d-cat { color: var(--teal); font-weight: 700; letter-spacing: 3px; font-size: 14px; }
.detail-info h1 { font-size: 38px; font-weight: 800; line-height: 1.3; margin: 10px 0 16px; }
.detail-info .d-sub { color: var(--muted); font-size: 16.5px; }
.d-points { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; margin: 30px 0; }
.d-points li { display: flex; align-items: center; gap: 10px; font-size: 15px; color: var(--ink-2); }
.d-points li::before { content: ""; width: 8px; height: 9px; flex: none; background: var(--grad-brand);
  clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%); }
.d-actions { display: flex; gap: 16px; margin-top: 34px; flex-wrap: wrap; }
.d-hotline { margin-top: 26px; padding: 18px 22px; background: var(--teal-soft); border-radius: 14px; display: flex; align-items: center; gap: 14px; font-size: 14.5px; color: var(--ink-2); }
.d-hotline b { font-family: var(--font-num); font-size: 22px; color: var(--blue); }

/* 详情锚点导航 */
.detail-anchor { position: sticky; top: var(--header-h); z-index: 60; background: rgba(255,255,255,.94); backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
.detail-anchor .container { display: flex; gap: 6px; overflow-x: auto; }
.detail-anchor a { padding: 16px 20px; font-size: 15.5px; font-weight: 600; color: var(--ink-2); position: relative; white-space: nowrap; }
.detail-anchor a:hover, .detail-anchor a.active { color: var(--blue); }
.detail-anchor a.active::after { content: ""; position: absolute; left: 20px; right: 20px; bottom: 0; height: 3px; border-radius: 3px 3px 0 0; background: var(--grad-brand); }

/* 参数表 */
.spec-table { width: 100%; border-collapse: collapse; font-size: 15px; }
.spec-table th { text-align: left; font-weight: 700; color: var(--ink-2); background: var(--bg); padding: 16px 22px; border: 1px solid var(--line); }
.spec-table td { padding: 16px 22px; border: 1px solid var(--line); color: var(--ink); }
.spec-table tr td:first-child { color: var(--muted); width: 200px; }

/* FAQ 手风琴 */
.faq-item { border: 1px solid var(--line); border-radius: var(--r-md); margin-bottom: 16px; overflow: hidden; background: #fff; transition: box-shadow .3s; }
.faq-item.open { box-shadow: var(--shadow-card); border-color: rgba(20,211,195,.5); }
.faq-q { padding: 22px 26px; display: flex; justify-content: space-between; align-items: center; gap: 18px; cursor: pointer; font-weight: 700; font-size: 16.5px; }
.faq-q .faq-ico { width: 30px; height: 30px; border-radius: 10px; background: var(--teal-soft); color: var(--blue); display: flex; align-items: center; justify-content: center; flex: none; transition: all .35s; font-size: 18px; }
.faq-item.open .faq-ico { background: var(--grad-brand); color: #fff; transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .45s ease; }
.faq-a p { padding: 0 26px 24px; color: var(--muted); font-size: 15px; }

/* 检测报告卡 */
.report-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.report-card { text-align: center; padding: 40px 28px; }
.report-card .r-badge { width: 74px; height: 82px; margin: 0 auto 20px; display: flex; align-items: center; justify-content: center; color: #fff;
  clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%); background: var(--grad-brand); }
.report-card:nth-child(2) .r-badge { background: linear-gradient(135deg, #16314F, #0A2240); }
.report-card:nth-child(3) .r-badge { background: var(--grad-warm); }
.report-card .r-badge svg { width: 34px; height: 34px; }
.report-card h4 { font-size: 18px; font-weight: 700; }
.report-card p { color: var(--muted); font-size: 13.5px; margin: 8px 0 16px; }
.report-card .r-view { font-size: 14px; color: var(--blue); font-weight: 600; }

/* 案例卡 */
.case-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.case-card { overflow: hidden; }
.case-card .pic, .case-card .visual { height: 250px; position: relative; }
.case-card .pic img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.case-card:hover .pic img { transform: scale(1.05); }
.case-body { padding: 28px 30px; }
.case-body .a-meta { margin-bottom: 8px; }
.case-body h3 { font-size: 21px; font-weight: 700; margin-bottom: 10px; }
.case-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 18px; }
.case-tags span { font-size: 12.5px; color: var(--ink-2); background: var(--bg); border: 1px solid var(--line); padding: 4px 12px; border-radius: 999px; }

/* 留言/联系 */
.contact-layout { display: grid; grid-template-columns: 1fr 1.25fr; gap: 34px; align-items: stretch; }
.contact-info-card { background: var(--grad-deep); border-radius: var(--r-lg); color: #fff; padding: 46px 42px; position: relative; overflow: hidden; }
.contact-info-card h3 { font-size: 25px; font-weight: 800; margin-bottom: 30px; }
.ci-item { display: flex; gap: 16px; padding: 17px 0; border-bottom: 1px solid rgba(255,255,255,.1); }
.ci-item:last-child { border: none; }
.ci-item .ci-ico { width: 42px; height: 42px; border-radius: 13px; background: rgba(20,211,195,.14); border: 1px solid rgba(20,211,195,.3); display: flex; align-items: center; justify-content: center; color: var(--teal); flex: none; }
.ci-item .ci-ico svg { width: 20px; height: 20px; }
.ci-item b { display: block; font-size: 13px; color: #9DB2CD; font-weight: 500; letter-spacing: 1px; }
.ci-item span { font-size: 16px; }
.map-visual { height: 260px; border-radius: var(--r-md); margin-top: 26px; position: relative; overflow: hidden;
  background: linear-gradient(145deg, #10305A, #0A2240); border: 1px solid rgba(79,227,255,.2); }

/* 设计稿徽标(角标提示) */
.mockup-flag { position: fixed; left: 18px; bottom: 20px; z-index: 95; font-size: 12px; letter-spacing: 1.5px;
  color: #7C8BA1; background: rgba(255,255,255,.9); border: 1px solid var(--line); padding: 7px 14px; border-radius: 999px; backdrop-filter: blur(8px); }
.mockup-flag b { color: var(--blue); }

/* ============ 滚动显现动画 ============ */
.reveal { opacity: 0; transform: translateY(34px); transition: opacity .8s cubic-bezier(.2,.6,.2,1), transform .8s cubic-bezier(.2,.6,.2,1); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .12s; }
.reveal[data-delay="2"] { transition-delay: .24s; }
.reveal[data-delay="3"] { transition-delay: .36s; }

/* ============ 响应式 ============ */
@media (max-width: 1080px) {
  .sec-title { font-size: 33px; }
  .hero { height: auto; padding: 70px 0 90px; }
  .hero-slide { position: relative; }
  .hero-in { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .hero-title { font-size: 44px; }
  .prod-grid, .honor-grid { grid-template-columns: repeat(2, 1fr); }
  .honor-card .vline { display: none; }
  .article-grid, .report-grid { grid-template-columns: 1fr 1fr; }
  .tech-wrap { grid-template-columns: 1fr; gap: 40px; }
  .tech-diagram { max-width: 420px; margin: 0 auto; }
  .value-grid { grid-template-columns: 1fr; }
  .track-grid { grid-template-columns: 1fr; }
  .detail-layout { grid-template-columns: 1fr; gap: 36px; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .case-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-cell:nth-child(3)::before { display: none; }
  .cta-band { flex-direction: column; text-align: center; padding: 52px 36px; }
}

@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .topbar-links .hide-m { display: none; }
  .topbar-in { justify-content: center; }
  .menu-toggle { display: block; }
  .main-nav {
    position: fixed; top: calc(var(--header-h) + 38px); left: 0; right: 0; z-index: 99;
    background: #fff; flex-direction: column; align-items: stretch; gap: 2px;
    padding: 18px 20px 26px; box-shadow: var(--shadow-lift); border-top: 1px solid var(--line);
    max-height: calc(100vh - 120px); overflow-y: auto;
    transform: translateY(-16px); opacity: 0; visibility: hidden; transition: all .35s;
  }
  .main-nav.open { transform: none; opacity: 1; visibility: visible; }
  .main-nav > li > a { padding: 13px 16px; font-size: 16px; }
  .submenu { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: none; padding: 0 0 6px 16px; min-width: 0; }
  .nav-cta .consult span.t { display: none; }
  .nav-cta .consult { padding: 11px 15px; }
  .hero-title { font-size: 34px; }
  .hero-desc { font-size: 16px; }
  .section { padding: 64px 0; }
  .sec-title { font-size: 27px; }
  .sec-head { margin-bottom: 38px; }
  .prod-grid, .honor-grid, .article-grid, .report-grid, .form-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-num { font-size: 32px; }
  .news-list-card { grid-template-columns: 1fr; padding: 24px; }
  .news-list-card .visual { height: 170px; }
  .timeline::before { left: 8px; }
  .tl-item, .tl-item:nth-child(even) { width: 100%; margin: 0; padding: 0 0 40px 36px; }
  .tl-item .tl-dot, .tl-item:nth-child(even) .tl-dot { left: 1px; right: auto; }
  .d-points { grid-template-columns: 1fr; }
  .page-hero h1 { font-size: 31px; }
  .page-hero .hex-deco { opacity: .2; }
  .float-bar { right: 14px; bottom: 70px; }
  .mockup-flag { display: none; }
  .hero-arrow { display: none; }
  .footer-main { grid-template-columns: 1fr; gap: 36px; padding: 54px 0 40px; }
  .detail-gallery .main-view { height: 320px; }
  .cta-band h3 { font-size: 25px; }
  .spec-table th, .spec-table td { padding: 12px 12px; font-size: 13.5px; }
  .spec-table tr td:first-child { width: 110px; }
}