/* ============================================================
   江苏智康芯源科技有限公司 · 官网样式
   品牌色：深蓝 #16579E / 渐变 #1C74B9 → #1D86BE / 绿 #7AC143
   ============================================================ */

:root {
  --blue: #16579E;
  --blue-deep: #0E3E75;
  --blue-mid: #1C74B9;
  --blue-cyan: #1D86BE;
  --blue-soft: #E8F1FA;
  --blue-tint: #F4F8FC;
  --green: #7AC143;
  --green-deep: #5FA22F;
  --ink: #14212F;
  --ink-2: #3A4A5C;
  --gray: #6B7C8F;
  --line: #E2EAF3;
  --white: #FFFFFF;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 10px rgba(22, 87, 158, 0.06);
  --shadow: 0 12px 36px rgba(22, 87, 158, 0.10);
  --shadow-lg: 0 24px 64px rgba(14, 62, 117, 0.16);
  --max: 1240px;
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
table { border-collapse: collapse; width: 100%; }
::selection { background: var(--blue); color: #fff; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 32px; }

/* ============ 按钮 ============ */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 26px; border-radius: 100px;
  font-size: 15px; font-weight: 600; line-height: 1;
  transition: all .3s var(--ease); border: 1.5px solid transparent;
  cursor: pointer; white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(120deg, var(--blue-mid), var(--blue-cyan));
  color: #fff; box-shadow: 0 10px 26px rgba(28, 116, 185, .28);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 36px rgba(28, 116, 185, .36); }
.btn-primary .arrow { transition: transform .3s var(--ease); }
.btn-primary:hover .arrow { transform: translateX(4px); }
.btn-ghost { border-color: rgba(22, 87, 158, .22); color: var(--blue); background: rgba(255,255,255,.6); }
.btn-ghost:hover { border-color: var(--blue); background: #fff; }
.btn-green { background: var(--green); color: #0E2A12; box-shadow: 0 10px 26px rgba(122, 193, 67, .3); }
.btn-green:hover { background: #8AD155; transform: translateY(-2px); }
.btn-nav {
  padding: 10px 20px; font-size: 14px;
  background: var(--blue); color: #fff;
}
.btn-nav:hover { background: var(--blue-mid); }

/* ============ 导航 ============ */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: all .35s var(--ease);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(255, 255, 255, 0.94);
  border-bottom-color: var(--line);
  box-shadow: 0 4px 24px rgba(14, 62, 117, .06);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand { display: flex; align-items: center; }
.brand-logo { height: 40px; width: auto; }
.main-nav { display: flex; align-items: center; gap: 30px; }
.nav-link {
  font-size: 15px; color: var(--ink-2); font-weight: 500;
  position: relative; padding: 6px 0; transition: color .25s;
}
.nav-link::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 0; height: 2px; background: var(--green);
  transition: width .3s var(--ease);
}
.nav-link:hover, .nav-link.active { color: var(--blue); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: 0; padding: 8px; cursor: pointer;
}
.nav-toggle span {
  display: block; width: 24px; height: 2px; background: var(--blue);
  border-radius: 2px; transition: all .3s var(--ease);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============ 首屏 ============ */
.hero {
  position: relative; padding: 168px 0 110px; overflow: hidden;
  background: linear-gradient(150deg, #F7FAFE 0%, #EAF3FB 46%, #E4F0FA 100%);
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(22, 87, 158, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(22, 87, 158, .055) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 10%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 10%, transparent 75%);
}
.hero-glow { position: absolute; border-radius: 50%; filter: blur(80px); opacity: .5; }
.hero-glow.g1 { width: 520px; height: 520px; top: -160px; right: -80px; background: radial-gradient(circle, rgba(29,134,190,.5), transparent 70%); }
.hero-glow.g2 { width: 460px; height: 460px; bottom: -180px; left: -100px; background: radial-gradient(circle, rgba(122,193,67,.32), transparent 70%); }
.hero-wave { position: absolute; bottom: -1px; left: 0; width: 100%; height: 180px; display: none; }
.hero-inner { position: relative; display: grid; grid-template-columns: 1.08fr 0.92fr; gap: 64px; align-items: center; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 8px 16px; border-radius: 100px;
  background: rgba(255, 255, 255, .82); border: 1px solid rgba(22, 87, 158, .12);
  font-size: 13.5px; color: var(--blue); font-weight: 600;
  box-shadow: var(--shadow-sm); margin-bottom: 26px;
}
.pulse-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); position: relative; }
.pulse-dot::after {
  content: ""; position: absolute; inset: -4px; border-radius: 50%;
  border: 1.5px solid var(--green); opacity: .6;
  animation: pulse 2s infinite;
}
@keyframes pulse { 0% { transform: scale(.7); opacity: .8; } 100% { transform: scale(1.6); opacity: 0; } }

.hero-title {
  font-size: clamp(38px, 4.4vw, 62px);
  line-height: 1.24; letter-spacing: -0.5px;
  font-weight: 700; color: var(--ink);
  margin-bottom: 24px;
}
.grad-text {
  background: linear-gradient(100deg, var(--blue) 10%, var(--blue-cyan) 60%, #2FA3C8 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-sub { font-size: 17px; color: var(--ink-2); max-width: 560px; margin-bottom: 26px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 34px; }
.hero-tags span {
  font-size: 13px; color: var(--blue); padding: 6px 14px;
  background: rgba(255, 255, 255, .8); border: 1px solid rgba(22, 87, 158, .13);
  border-radius: 100px; font-weight: 500;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 46px; }

.hero-meta { display: flex; align-items: center; gap: 26px; }
.hero-meta div { display: flex; flex-direction: column; }
.hero-meta strong { font-size: 30px; font-weight: 700; color: var(--blue); line-height: 1.2; letter-spacing: -0.5px; }
.hero-meta span { font-size: 12.5px; color: var(--gray); margin-top: 2px; }
.hero-meta .divider { width: 1px; height: 36px; background: rgba(22, 87, 158, .15); }

/* 首屏仪表盘 */
.hero-visual { position: relative; }
.dash-card {
  position: relative; background: linear-gradient(160deg, #0F3F70, #16579E 55%, #1B6BA8);
  border-radius: 22px; padding: 24px; color: #fff;
  box-shadow: 0 30px 70px rgba(14, 62, 117, .32);
  border: 1px solid rgba(255, 255, 255, .12);
  overflow: hidden;
}
.dash-card::before {
  content: ""; position: absolute; width: 260px; height: 260px;
  top: -120px; right: -80px; border-radius: 50%;
  background: radial-gradient(circle, rgba(122, 193, 67, .28), transparent 70%);
}
.dash-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; position: relative; }
.dash-title { font-size: 14px; font-weight: 600; letter-spacing: .5px; }
.dash-live { display: flex; align-items: center; gap: 6px; font-size: 10.5px; letter-spacing: 1.2px; color: var(--green); font-weight: 700; }
.dash-live span { width: 6px; height: 6px; border-radius: 50%; background: var(--green); animation: blink 1.6s infinite; }
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: .25; } }

.dash-vitals { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 18px; }
.vital { background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .1); border-radius: 12px; padding: 12px 14px; }
.vital-label { font-size: 11px; color: rgba(220, 235, 248, .7); margin-bottom: 4px; }
.vital-value { font-size: 24px; font-weight: 700; letter-spacing: -0.5px; line-height: 1.2; font-variant-numeric: tabular-nums; }
.vital-value span { font-size: 11px; font-weight: 500; color: rgba(220, 235, 248, .6); margin-left: 3px; }
.vital-bar { height: 3px; background: rgba(255, 255, 255, .12); border-radius: 3px; margin-top: 8px; overflow: hidden; }
.vital-bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--green), #A8DF72); border-radius: 3px; }
.dash-chart { width: 100%; height: 96px; display: block; margin-bottom: 14px; }
.dash-foot { display: flex; align-items: center; gap: 8px; font-size: 11px; color: rgba(220, 235, 248, .7); }
.dot { width: 6px; height: 6px; border-radius: 50%; display: inline-block; }
.dot.blue { background: #6FC3EE; }
.dot.green { background: var(--green); }
.dash-time { margin-left: auto; font-variant-numeric: tabular-nums; }

.float-chip {
  position: absolute; padding: 9px 15px; border-radius: 100px;
  background: rgba(255, 255, 255, .96); color: var(--blue);
  font-size: 12.5px; font-weight: 600; box-shadow: var(--shadow);
  border: 1px solid rgba(22, 87, 158, .1);
  animation: float 5s ease-in-out infinite;
}
.chip-1 { top: 8%; left: -46px; animation-delay: 0s; }
.chip-2 { bottom: 22%; right: -38px; animation-delay: 1.1s; }
.chip-3 { bottom: -16px; left: 12%; animation-delay: 2.2s; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-9px); } }

/* ============ 通用 section ============ */
.section { padding: 104px 0; position: relative; }
.section-alt { background: linear-gradient(180deg, #F7FAFE 0%, #F1F7FC 100%); }
.section-dark {
  background: linear-gradient(150deg, #0E3E75 0%, #16579E 55%, #1A6BA9 100%);
  color: #fff; overflow: hidden;
}
.section-dark::before {
  content: ""; position: absolute; width: 620px; height: 620px;
  right: -220px; top: -260px; border-radius: 50%;
  background: radial-gradient(circle, rgba(122, 193, 67, .18), transparent 70%);
}
.section-head { max-width: 780px; margin-bottom: 56px; }
.section-head.reveal { will-change: transform, opacity; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 13px; font-weight: 700; letter-spacing: 1px;
  color: var(--blue); margin-bottom: 18px;
}
.eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--green); }
.eyebrow.light { color: rgba(255, 255, 255, .72); }
.section-title {
  font-size: clamp(28px, 3.1vw, 42px); line-height: 1.35;
  font-weight: 700; letter-spacing: -0.4px; color: var(--ink);
  margin-bottom: 18px;
}
.section-head.light .section-title { color: #fff; }
.section-desc { font-size: 16.5px; color: var(--gray); max-width: 680px; }
.section-head.light .section-desc { color: rgba(255, 255, 255, .72); }

/* ============ 公司概况 ============ */
.about-layout { display: grid; grid-template-columns: 0.95fr 1.05fr; gap: 30px; }
.info-card {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 12px 30px;
  box-shadow: var(--shadow-sm);
}
.info-row {
  display: grid; grid-template-columns: 96px 1fr; gap: 18px;
  padding: 16px 0; border-bottom: 1px dashed var(--line); align-items: start;
}
.info-row:last-child { border-bottom: 0; }
.info-row span { font-size: 13.5px; color: var(--gray); }
.info-row b { font-size: 15px; font-weight: 600; color: var(--ink); line-height: 1.6; }

.track-cards { display: flex; flex-direction: column; gap: 22px; }
.track-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 30px; position: relative; overflow: hidden;
  transition: all .35s var(--ease); box-shadow: var(--shadow-sm);
}
.track-card::after {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: linear-gradient(180deg, var(--blue-mid), var(--blue-cyan));
}
.track-card:nth-child(2)::after { background: linear-gradient(180deg, var(--green), #A8DF72); }
.track-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(22,87,158,.2); }
.track-icon {
  width: 46px; height: 46px; border-radius: 12px;
  background: var(--blue-soft); color: var(--blue);
  display: grid; place-items: center; margin-bottom: 16px;
}
.track-card:nth-child(2) .track-icon { background: #EEF8E5; color: var(--green-deep); }
.track-icon svg { width: 26px; height: 26px; }
.track-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 8px; color: var(--ink); }
.track-card p { font-size: 14.5px; color: var(--ink-2); line-height: 1.8; margin-bottom: 16px; }
.track-flow { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.track-flow span {
  font-size: 12px; font-weight: 600; color: var(--blue);
  background: var(--blue-tint); border: 1px solid var(--line);
  padding: 4px 12px; border-radius: 100px;
}
.track-flow i { font-style: normal; color: var(--green); font-size: 12px; font-weight: 700; }

/* ============ 愿景 ============ */
.vm-banner {
  display: grid; grid-template-columns: 1fr auto 1fr; gap: 36px; align-items: center;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 40px 44px; box-shadow: var(--shadow-sm); margin-bottom: 28px;
}
.vm-split { width: 1px; height: 62px; background: var(--line); }
.vm-label { font-size: 12.5px; font-weight: 700; letter-spacing: 1.5px; color: var(--gray); margin-bottom: 10px; }
.vm-label.green { color: var(--green-deep); }
.vm-text { font-size: clamp(18px, 1.9vw, 24px); font-weight: 700; line-height: 1.5; color: var(--blue); letter-spacing: -0.2px; }
.vm-block:last-child .vm-text { color: var(--ink); }

.values-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.value-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 28px 24px; position: relative; overflow: hidden;
  transition: all .35s var(--ease);
}
.value-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: rgba(122,193,67,.4); }
.value-no {
  font-size: 42px; font-weight: 800; line-height: 1;
  color: rgba(22, 87, 158, .09); margin-bottom: 6px; letter-spacing: -2px;
}
.value-card h3 { font-size: 17.5px; font-weight: 700; margin-bottom: 8px; color: var(--ink); }
.value-card p { font-size: 13.5px; color: var(--gray); line-height: 1.75; }

/* ============ 核心能力 ============ */
.cap-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 54px; }
.cap-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 26px; transition: all .35s var(--ease); box-shadow: var(--shadow-sm);
}
.cap-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: rgba(22,87,158,.22); }
.cap-icon {
  width: 52px; height: 52px; border-radius: 14px;
  background: linear-gradient(140deg, var(--blue-tint), var(--blue-soft));
  color: var(--blue); display: grid; place-items: center; margin-bottom: 20px;
}
.cap-icon svg { width: 30px; height: 30px; }
.cap-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.cap-card p { font-size: 13.5px; color: var(--gray); line-height: 1.75; margin-bottom: 18px; min-height: 44px; }
.cap-tag {
  display: inline-block; font-size: 11.5px; font-weight: 600; color: var(--green-deep);
  background: #F0F9E8; padding: 4px 12px; border-radius: 100px;
}

.arch {
  background: linear-gradient(150deg, #0F4278, #16579E 60%, #1B6BA8);
  border-radius: 22px; padding: 44px; color: #fff; position: relative; overflow: hidden;
}
.arch::before {
  content: ""; position: absolute; width: 480px; height: 480px; top: -220px; right: -140px;
  border-radius: 50%; background: radial-gradient(circle, rgba(122,193,67,.18), transparent 70%);
}
.arch-title { font-size: 12.5px; letter-spacing: 2px; color: rgba(255,255,255,.6); font-weight: 600; }
.arch-name { font-size: 26px; font-weight: 700; margin: 8px 0 32px; letter-spacing: 1px; }
.arch-row { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; gap: 16px; align-items: stretch; position: relative; }
.arch-node {
  background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 14px; padding: 22px;
}
.node-badge {
  display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: 1px;
  padding: 3px 10px; border-radius: 4px; background: var(--green); color: #0E2A12;
  margin-bottom: 10px;
}
.arch-node h4 { font-size: 17px; margin-bottom: 8px; }
.arch-node p { font-size: 13px; color: rgba(224, 238, 250, .78); line-height: 1.7; }
.arch-node ul li {
  font-size: 12.5px; color: rgba(224, 238, 250, .78); line-height: 1.8;
  padding-left: 12px; position: relative;
}
.arch-node ul li::before { content: ""; position: absolute; left: 0; top: 10px; width: 4px; height: 4px; border-radius: 50%; background: var(--green); }
.arch-node ul li b { color: #fff; font-weight: 600; }
.node-tags { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 12px; }
.node-tags span {
  font-size: 10.5px; padding: 2px 8px; border-radius: 4px;
  background: rgba(255, 255, 255, .1); color: rgba(224, 238, 250, .85);
}
.arch-arrow { display: grid; place-items: center; color: rgba(122, 193, 67, .8); font-size: 20px; }

/* ============ 战略 ============ */
.strategy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 46px; }
.strategy-card {
  background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .14);
  border-radius: var(--radius); padding: 30px 28px; transition: all .35s var(--ease);
  backdrop-filter: blur(4px);
}
.strategy-card:hover { background: rgba(255, 255, 255, .12); transform: translateY(-4px); }
.s-label { font-size: 12px; font-weight: 700; letter-spacing: 1.2px; color: var(--green); margin-bottom: 12px; }
.strategy-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; color: #fff; }
.strategy-card p { font-size: 13.5px; color: rgba(224, 238, 250, .76); line-height: 1.8; margin-bottom: 18px; }
.s-flow { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.s-flow span {
  font-size: 11.5px; font-weight: 600; color: #E6F4FF;
  background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .16);
  padding: 4px 10px; border-radius: 5px;
}
.s-flow i { font-style: normal; color: var(--green); font-size: 11px; }

.biz-table { background: rgba(255, 255, 255, .96); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); }
.biz-table table { font-size: 14.5px; color: var(--ink); }
.biz-table th {
  background: var(--blue-soft); color: var(--blue); font-weight: 700;
  text-align: left; padding: 16px 24px; font-size: 13.5px; letter-spacing: .5px;
}
.biz-table td { padding: 18px 24px; border-top: 1px solid var(--line); color: var(--ink-2); }
.biz-table td b { color: var(--ink); font-weight: 600; }
.biz-table tbody tr:hover { background: var(--blue-tint); }

/* ============ 产品 ============ */
.product-overview { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; margin-bottom: 40px; }
.po-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 22px; position: relative; cursor: pointer;
  transition: all .38s var(--ease); overflow: hidden;
}
.po-card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg, var(--blue-mid), var(--blue-cyan));
  transform: scaleX(0); transform-origin: left; transition: transform .38s var(--ease);
}
.po-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: rgba(22,87,158,.2); }
.po-card:hover::before { transform: scaleX(1); }
.po-no { font-size: 12px; font-weight: 700; color: rgba(22,87,158,.35); letter-spacing: 1px; margin-bottom: 10px; }
.po-scene {
  position: absolute; top: 22px; right: 18px;
  font-size: 10.5px; font-weight: 700; padding: 2px 8px; border-radius: 4px;
}
.po-scene.out { background: #EEF8E5; color: var(--green-deep); }
.po-scene.in { background: var(--blue-soft); color: var(--blue); }
.po-card h3 { font-size: 16.5px; font-weight: 700; line-height: 1.45; margin-bottom: 8px; color: var(--ink); }
.po-card p { font-size: 12.5px; color: var(--gray); line-height: 1.6; margin-bottom: 18px; min-height: 40px; }
.po-link { font-size: 12px; font-weight: 600; color: var(--blue); }

.synergy {
  background: var(--blue-tint); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px 32px; margin-bottom: 64px;
}
.synergy-title { font-size: 13px; font-weight: 700; color: var(--blue); letter-spacing: .5px; margin-bottom: 18px; }
.synergy-flow { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr; gap: 12px; align-items: center; }
.syn-node {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 14px 16px; display: flex; flex-direction: column; gap: 2px;
}
.syn-node b { font-size: 14px; color: var(--ink); }
.syn-node span { font-size: 11.5px; color: var(--gray); }
.synergy-flow i { font-style: normal; color: var(--green); font-weight: 700; font-size: 14px; }

/* 产品详情 */
.product-detail {
  display: grid; grid-template-columns: 320px 1fr; gap: 0;
  border: 1px solid var(--line); border-radius: 20px; overflow: hidden;
  background: #fff; margin-bottom: 28px; box-shadow: var(--shadow-sm);
  scroll-margin-top: 96px;
}
.product-detail.alt { background: #FCFDFF; }
.pd-aside {
  background: linear-gradient(165deg, #0F4278, #16579E 65%, #1A6BA9);
  padding: 38px 32px; color: #fff; position: relative; overflow: hidden;
}
.pd-aside::after {
  content: ""; position: absolute; width: 220px; height: 220px;
  bottom: -120px; right: -80px; border-radius: 50%;
  background: radial-gradient(circle, rgba(122,193,67,.24), transparent 70%);
}
.pd-no { font-size: 11.5px; letter-spacing: 2px; color: rgba(255,255,255,.55); font-weight: 600; margin-bottom: 12px; }
.pd-aside h3 { font-size: 26px; line-height: 1.35; font-weight: 700; margin-bottom: 12px; }
.pd-scene {
  display: inline-block; font-size: 11.5px; font-weight: 600;
  background: rgba(122, 193, 67, .18); color: #B7E88C;
  border: 1px solid rgba(122, 193, 67, .3);
  padding: 3px 11px; border-radius: 100px; margin-bottom: 20px;
}
.pd-desc { font-size: 13.5px; color: rgba(226, 240, 252, .86); line-height: 1.85; margin-bottom: 22px; position: relative; }
.pd-arch {
  font-size: 12px; color: rgba(226, 240, 252, .72); line-height: 1.75;
  border-left: 2px solid var(--green); padding-left: 12px;
}
.pd-main { padding: 34px 34px 30px; }

.pd-features { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 16px; }
.pd-features.three { grid-template-columns: repeat(3, 1fr); }
.feat {
  background: var(--blue-tint); border: 1px solid #E9F0F8; border-radius: var(--radius-sm);
  padding: 16px 18px; transition: all .3s var(--ease);
}
.feat:hover { background: #fff; border-color: rgba(22,87,158,.2); box-shadow: var(--shadow-sm); }
.feat h4 {
  font-size: 14px; font-weight: 700; color: var(--blue); margin-bottom: 6px;
  padding-left: 12px; position: relative;
}
.feat h4::before {
  content: ""; position: absolute; left: 0; top: 8px;
  width: 5px; height: 5px; border-radius: 50%; background: var(--green);
}
.feat p { font-size: 13px; color: var(--ink-2); line-height: 1.75; }

.pd-modules { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 16px; }
.mod { border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 15px 18px; background: #fff; }
.mod span { display: block; font-size: 13.5px; font-weight: 700; color: var(--ink); margin-bottom: 4px; }
.mod p { font-size: 12.5px; color: var(--gray); line-height: 1.7; }
.pd-note {
  background: #F4FAEE; border: 1px solid #E0F0CE; border-radius: var(--radius-sm);
  padding: 14px 18px; font-size: 13px; color: #3E6B18; line-height: 1.7;
  display: flex; gap: 8px;
}
.pd-note .star { color: var(--green-deep); flex-shrink: 0; }

/* MDT agents */
.agent-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 16px; }
.agent {
  border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden;
  background: #fff; transition: all .3s var(--ease);
}
.agent:hover { box-shadow: var(--shadow-sm); transform: translateY(-3px); border-color: rgba(22,87,158,.2); }
.agent-ico {
  height: 44px; display: grid; place-items: center; font-size: 17px;
  background: linear-gradient(120deg, var(--blue-soft), #F2F8FE); color: var(--blue);
}
.agent:nth-child(even) .agent-ico { background: linear-gradient(120deg, #EFF8E6, #F7FCF3); color: var(--green-deep); }
.agent h4 { font-size: 14px; font-weight: 700; padding: 12px 14px 0; color: var(--ink); }
.agent > span { display: block; font-size: 10px; color: var(--gray); letter-spacing: .5px; padding: 1px 14px 10px; }
.agent ul { padding: 0 14px 14px; }
.agent ul li {
  font-size: 12px; color: var(--ink-2); line-height: 1.9; padding-left: 10px; position: relative;
}
.agent ul li::before { content: ""; position: absolute; left: 0; top: 9px; width: 3px; height: 3px; border-radius: 50%; background: var(--green); }

.tech-stack { margin-top: 6px; border-top: 1px solid var(--line); }
.ts-row { display: grid; grid-template-columns: 96px 1fr; gap: 16px; padding: 11px 0; border-bottom: 1px dashed var(--line); }
.ts-row:last-child { border-bottom: 0; }
.ts-row span { font-size: 12.5px; font-weight: 700; color: var(--blue); }
.ts-row p { font-size: 13px; color: var(--ink-2); line-height: 1.7; }

/* ERAS */
.eras-phases { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 16px; }
.phase { border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 16px 18px; background: #fff; }
.phase-tag {
  display: inline-block; font-size: 11.5px; font-weight: 700; color: #fff;
  background: var(--blue); padding: 3px 12px; border-radius: 4px; margin-bottom: 10px;
}
.phase:nth-child(2) .phase-tag { background: var(--blue-cyan); }
.phase:nth-child(3) .phase-tag { background: var(--green); color: #0E2A12; }
.phase ul li { font-size: 12.5px; color: var(--ink-2); line-height: 1.95; padding-left: 12px; position: relative; }
.phase ul li::before { content: ""; position: absolute; left: 0; top: 10px; width: 4px; height: 4px; border-radius: 50%; background: rgba(22,87,158,.35); }

.metric-table { border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; margin-top: 4px; }
.mt-head, .mt-row { display: grid; grid-template-columns: 1.1fr 1fr 1.2fr 1fr; }
.mt-head { background: var(--blue-soft); }
.mt-head span { font-size: 12px; font-weight: 700; color: var(--blue); padding: 11px 16px; }
.mt-row { border-top: 1px solid var(--line); background: #fff; }
.mt-row span, .mt-row b { font-size: 12.5px; padding: 10px 16px; color: var(--ink-2); }
.mt-row b { color: var(--green-deep); font-weight: 700; background: #F7FCF2; }

/* 多参数 */
.param-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 16px; }
.param {
  border: 1px solid var(--line); border-left: 2.5px solid var(--blue-mid);
  border-radius: 8px; padding: 13px 16px; background: #fff;
}
.param:nth-child(3n+2) { border-left-color: var(--green); }
.param h4 { font-size: 13px; font-weight: 700; color: var(--ink); margin-bottom: 3px; }
.param p { font-size: 12.5px; color: var(--blue); font-weight: 600; margin-bottom: 3px; }
.param span { font-size: 11.5px; color: var(--gray); line-height: 1.6; }

/* 应激 */
.stress-table { border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; margin-bottom: 16px; }
.st-head, .st-row { display: grid; grid-template-columns: 1fr 1.5fr 1.3fr 1.5fr; }
.st-head { background: var(--blue-soft); }
.st-head span { font-size: 12px; font-weight: 700; color: var(--blue); padding: 11px 14px; }
.st-row { border-top: 1px solid var(--line); background: #fff; }
.st-row span, .st-row b { font-size: 12px; padding: 11px 14px; color: var(--ink-2); line-height: 1.6; }
.st-row span:first-child { font-weight: 700; color: var(--ink); }
.st-row b { color: var(--blue); font-weight: 600; }

/* ============ 价值成效 ============ */
.impact-strip {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 0;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; margin-bottom: 34px; box-shadow: var(--shadow-sm);
}
.impact {
  padding: 32px 20px; text-align: center; border-right: 1px solid var(--line);
  transition: background .3s;
}
.impact:last-child { border-right: 0; }
.impact:hover { background: var(--blue-tint); }
.impact strong {
  display: block; font-size: clamp(26px, 2.6vw, 34px); font-weight: 800;
  color: var(--blue); letter-spacing: -1px; line-height: 1.2;
}
.impact strong sup { font-size: .55em; color: var(--green-deep); }
.impact span { display: block; font-size: 12.5px; color: var(--gray); margin-top: 8px; }

.value5-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.v5 {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 24px 20px; position: relative; transition: all .35s var(--ease);
}
.v5::after {
  content: ""; position: absolute; left: 20px; bottom: 0; width: 28px; height: 3px;
  background: var(--green); border-radius: 3px 3px 0 0;
  transition: width .35s var(--ease);
}
.v5:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.v5:hover::after { width: calc(100% - 40px); }
.v5 h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; color: var(--ink); }
.v5 p { font-size: 13px; color: var(--ink-2); line-height: 1.7; margin-bottom: 8px; }
.v5 span { font-size: 11.5px; color: var(--gray); line-height: 1.6; display: block; }

/* ============ 时间线 ============ */
.timeline { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; margin-bottom: 56px; }
.tl-line {
  position: absolute; left: 0; right: 0; top: 34px; height: 2px;
  background: linear-gradient(90deg, rgba(22,87,158,.15), rgba(122,193,67,.45), rgba(22,87,158,.15));
}
.tl-item {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 46px 28px 28px; position: relative; box-shadow: var(--shadow-sm);
  transition: all .35s var(--ease);
}
.tl-item:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.tl-dot {
  position: absolute; top: 26px; left: 28px; width: 16px; height: 16px;
  border-radius: 50%; background: #fff; border: 4px solid var(--blue);
  box-shadow: 0 0 0 5px rgba(22, 87, 158, .1);
}
.tl-item:nth-child(3) .tl-dot { border-color: var(--blue-cyan); }
.tl-item:nth-child(4) .tl-dot { border-color: var(--green); box-shadow: 0 0 0 5px rgba(122,193,67,.14); }
.tl-time { font-size: 12.5px; font-weight: 700; color: var(--green-deep); letter-spacing: .5px; margin-bottom: 8px; }
.tl-item h3 { font-size: 18px; font-weight: 700; margin-bottom: 14px; color: var(--ink); }
.tl-item ul li {
  font-size: 13.5px; color: var(--ink-2); line-height: 1.8;
  padding-left: 16px; position: relative; margin-bottom: 4px;
}
.tl-item ul li::before {
  content: ""; position: absolute; left: 0; top: 9px; width: 5px; height: 5px;
  border-radius: 50%; background: rgba(22,87,158,.35);
}

.eco-quote {
  background: linear-gradient(150deg, #0F4278, #16579E 60%, #1B6BA8);
  border-radius: var(--radius); padding: 46px 52px; color: #fff;
  position: relative; overflow: hidden;
}
.eco-quote::before {
  content: ""; position: absolute; width: 320px; height: 320px; right: -100px; bottom: -160px;
  border-radius: 50%; background: radial-gradient(circle, rgba(122,193,67,.22), transparent 70%);
}
.quote-mark {
  font-size: 60px; line-height: .8; color: var(--green); opacity: .55;
  font-family: Georgia, serif; margin-bottom: 6px;
}
.eco-quote p { font-size: clamp(17px, 1.9vw, 22px); line-height: 1.8; font-weight: 500; position: relative; }

/* ============ 联系 ============ */
.contact {
  background: linear-gradient(150deg, #0C3868 0%, #16579E 55%, #1A6BA9 100%);
  color: #fff; padding: 96px 0; position: relative; overflow: hidden;
}
.contact::before {
  content: ""; position: absolute; width: 700px; height: 700px; top: -380px; left: -160px;
  border-radius: 50%; background: radial-gradient(circle, rgba(29,134,190,.4), transparent 68%);
}
.contact-inner { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 60px; align-items: center; position: relative; }
.contact-left h2 { font-size: clamp(28px, 3vw, 40px); line-height: 1.4; font-weight: 700; margin-bottom: 18px; letter-spacing: -0.3px; }
.contact-left p { font-size: 15.5px; color: rgba(226, 240, 252, .8); max-width: 460px; margin-bottom: 30px; line-height: 1.85; }
.contact-card {
  background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .15);
  border-radius: var(--radius); padding: 14px 30px; backdrop-filter: blur(8px);
}
.cc-row { display: grid; grid-template-columns: 88px 1fr; gap: 16px; padding: 16px 0; border-bottom: 1px solid rgba(255,255,255,.1); }
.cc-row:last-child { border-bottom: 0; }
.cc-row span { font-size: 12.5px; color: rgba(226, 240, 252, .62); }
.cc-row b { font-size: 14px; font-weight: 600; line-height: 1.6; color: #fff; word-break: break-all; }

/* ============ 页脚 ============ */
.site-footer { background: #08294C; color: rgba(226, 240, 252, .7); padding: 64px 0 0; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 44px; }
.footer-logo { height: 38px; width: auto; margin-bottom: 18px; }
.footer-brand p { font-size: 13px; line-height: 1.9; color: rgba(200, 220, 240, .6); }
.footer-col h4 { font-size: 13.5px; font-weight: 700; color: #fff; margin-bottom: 16px; letter-spacing: .5px; }
.footer-col a, .footer-col p {
  display: block; font-size: 13px; color: rgba(200, 220, 240, .62);
  line-height: 2.1; transition: color .25s;
}
.footer-col a:hover { color: var(--green); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding: 22px 32px; border-top: 1px solid rgba(255, 255, 255, .08);
  font-size: 12px; color: rgba(200, 220, 240, .45); flex-wrap: wrap; gap: 10px;
}

.to-top {
  position: fixed; right: 28px; bottom: 28px; width: 44px; height: 44px;
  border-radius: 50%; border: 0; cursor: pointer; z-index: 90;
  background: var(--blue); color: #fff; font-size: 18px;
  box-shadow: 0 10px 24px rgba(22, 87, 158, .3);
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: all .3s var(--ease);
}
.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { background: var(--blue-mid); }

/* ============ 动画 ============ */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .float-chip, .pulse-dot::after, .dash-live span { animation: none; }
}

/* ============ 响应式 ============ */
@media (max-width: 1100px) {
  .hero-inner { grid-template-columns: 1fr; gap: 56px; }
  .hero-visual { max-width: 560px; }
  .product-overview { grid-template-columns: repeat(3, 1fr); }
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .arch-row { grid-template-columns: 1fr; }
  .arch-arrow { transform: rotate(90deg); padding: 4px 0; }
}

@media (max-width: 900px) {
  .container { padding: 0 22px; }
  .section { padding: 76px 0; }
  .main-nav {
    position: fixed; top: 76px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    padding: 12px 22px 22px; box-shadow: 0 20px 40px rgba(14,62,117,.12);
    transform: translateY(-140%); transition: transform .4s var(--ease);
  }
  .main-nav.open { transform: translateY(0); }
  .nav-link { padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 16px; }
  .nav-link::after { display: none; }
  .btn-nav { margin-top: 14px; justify-content: center; padding: 13px; }
  .nav-toggle { display: flex; }

  .about-layout, .contact-inner { grid-template-columns: 1fr; gap: 28px; }
  .values-grid { grid-template-columns: 1fr 1fr; }
  .strategy-grid { grid-template-columns: 1fr; }
  .product-detail { grid-template-columns: 1fr; }
  .pd-aside { padding: 30px 26px; }
  .pd-main { padding: 26px 22px; }
  .agent-grid { grid-template-columns: 1fr 1fr; }
  .param-grid { grid-template-columns: 1fr 1fr; }
  .pd-features.three { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: 1fr; }
  .tl-line { display: none; }
  .impact-strip { grid-template-columns: 1fr 1fr; }
  .impact { border-bottom: 1px solid var(--line); }
  .impact:nth-child(2n) { border-right: 0; }
  .impact:last-child { border-bottom: 0; }
  .value5-grid { grid-template-columns: 1fr 1fr; }
  .synergy-flow { grid-template-columns: 1fr; }
  .synergy-flow i { transform: rotate(90deg); text-align: center; }
  .vm-banner { grid-template-columns: 1fr; gap: 24px; padding: 30px; }
  .vm-split { width: 100%; height: 1px; }
  .biz-table { overflow-x: auto; }
  .biz-table table { min-width: 640px; }
  .float-chip { display: none; }
  .eco-quote { padding: 34px 28px; }
}

@media (max-width: 620px) {
  .hero { padding: 128px 0 70px; }
  .hero-title { font-size: 34px; }
  .hero-sub { font-size: 15px; }
  .hero-meta { gap: 18px; }
  .hero-meta strong { font-size: 24px; }
  .hero-actions .btn { flex: 1; justify-content: center; }
  .values-grid, .product-overview, .cap-grid,
  .pd-features, .pd-modules, .agent-grid, .eras-phases,
  .param-grid, .value5-grid, .impact-strip { grid-template-columns: 1fr; }
  .impact { border-right: 0; }
  .mt-head, .mt-row { grid-template-columns: 1fr 1fr; }
  .mt-head span:nth-child(3), .mt-row span:nth-child(3) { display: none; }
  .st-head, .st-row { grid-template-columns: 1fr 1fr; }
  .st-head span:nth-child(3), .st-row span:nth-child(3) { display: none; }
  .info-row { grid-template-columns: 1fr; gap: 4px; }
  .cc-row { grid-template-columns: 1fr; gap: 4px; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .section-title { font-size: 26px; }
  .pc-only { display: none; }
  .logo-strip { flex-wrap: wrap; }
}