/* ============================================================
   中山瑞芯 · 企业官网全局样式
   设计关键词：简约、大气、专业
   ============================================================ */

/* ---------- 设计变量 ---------- */
:root {
  --brand: #2f62f5;
  --brand-2: #5b8cff;
  --brand-deep: #1b44c8;
  --brand-soft: #eaf1ff;
  --cyan: #23c5e8;

  --ink-900: #10203f;   /* 大标题 */
  --ink-700: #2a3550;   /* 正文主色 */
  --ink-500: #5d6b85;   /* 次要文字 */
  --ink-300: #98a4bd;   /* 弱文字 */

  --bg: #ffffff;
  --bg-soft: #f5f8fe;
  --bg-deep: #0b1733;

  --line: #e6ebf6;

  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 10px;

  --shadow-sm: 0 4px 14px rgba(16, 32, 63, 0.06);
  --shadow-md: 0 14px 40px rgba(16, 32, 63, 0.09);
  --shadow-brand: 0 14px 30px rgba(47, 98, 245, 0.24);

  --grad: linear-gradient(100deg, #2f62f5 0%, #4a7dff 55%, #23b5ec 130%);
  --grad-soft: linear-gradient(100deg, rgba(47, 98, 245, 0.08), rgba(35, 197, 232, 0.05));

  --font: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-700);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, p, figure, ul { margin: 0; }
ul { padding: 0; list-style: none; }
img, svg { display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
::selection { background: rgba(47, 98, 245, 0.18); }

/* 滚动入场动效（仅 JS 环境启用） */
.js .reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s cubic-bezier(.22,.61,.36,1); }
.js .reveal.in { opacity: 1; transform: none; }
.js .reveal.d1 { transition-delay: .08s; }
.js .reveal.d2 { transition-delay: .16s; }
.js .reveal.d3 { transition-delay: .24s; }
.js .reveal.d4 { transition-delay: .32s; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- 布局 ---------- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 28px; }
.section { padding: 104px 0; }
.section--alt { background: var(--bg-soft); }

.sec-head { max-width: 680px; margin: 0 auto 60px; text-align: center; }
.sec-head h2 { font-size: clamp(1.75rem, 3vw, 2.4rem); line-height: 1.3; color: var(--ink-900); letter-spacing: .5px; }
.sec-head p { margin-top: 16px; color: var(--ink-500); font-size: 1.02rem; }
.sec-head--left { margin-left: 0; text-align: left; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .78rem; font-weight: 700; letter-spacing: 2.5px;
  text-transform: uppercase; color: var(--brand);
  margin-bottom: 14px;
}
.eyebrow::before { content: ""; width: 22px; height: 2px; background: var(--grad); border-radius: 2px; }
.sec-head .eyebrow { justify-content: center; }
.sec-head .eyebrow::after { content: ""; width: 22px; height: 2px; background: var(--grad); border-radius: 2px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: .92rem 1.7rem; border-radius: 999px;
  font-size: .98rem; font-weight: 600; line-height: 1; white-space: nowrap;
  border: 1px solid transparent; transition: all .25s ease;
}
.btn svg { width: 17px; height: 17px; }
.btn-brand { background: var(--grad); color: #fff; box-shadow: var(--shadow-brand); }
.btn-brand:hover { transform: translateY(-2px); box-shadow: 0 18px 36px rgba(47, 98, 245, .32); }
.btn-outline { border-color: rgba(47, 98, 245, .4); color: var(--brand); background: #fff; }
.btn-outline:hover { border-color: var(--brand); background: var(--brand-soft); }
.btn-white { background: #fff; color: var(--brand); box-shadow: 0 10px 26px rgba(4, 18, 54, .28); }
.btn-white:hover { transform: translateY(-2px); }
.btn-glass { border-color: rgba(255, 255, 255, .55); color: #fff; background: rgba(255, 255, 255, .08); }
.btn-glass:hover { background: rgba(255, 255, 255, .16); border-color: #fff; }
.btn-sm { padding: .62rem 1.15rem; font-size: .9rem; }

/* ---------- 顶栏 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .3s ease;
}
.site-header.scrolled { box-shadow: 0 6px 24px rgba(16, 32, 63, .07); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 78px; }

.logo { display: inline-flex; align-items: center; gap: 12px; }
.logo-mark {
  width: 42px; height: 42px; border-radius: 12px; flex: none;
  background: var(--grad);
  display: grid; place-items: center;
  box-shadow: 0 8px 18px rgba(47, 98, 245, .28);
}
.logo-mark svg { width: 22px; height: 22px; color: #fff; }
.logo-txt { display: flex; flex-direction: column; line-height: 1.2; }
.logo-txt b { font-size: 1.22rem; font-weight: 800; color: var(--ink-900); letter-spacing: 1px; }
.logo-txt em { font-style: normal; font-size: .62rem; font-weight: 600; letter-spacing: 3.4px; color: var(--ink-300); margin-top: 3px; }

.nav { display: flex; align-items: center; gap: 38px; }
.nav-list { display: flex; align-items: center; gap: 34px; }
.nav-list a {
  position: relative; font-size: .98rem; font-weight: 500; color: var(--ink-700);
  padding: 6px 0; transition: color .2s ease;
}
.nav-list a::after {
  content: ""; position: absolute; left: 0; bottom: -2px;
  width: 0; height: 2.5px; border-radius: 3px;
  background: var(--grad); transition: width .25s ease;
}
.nav-list a:hover, .nav-list a.active { color: var(--brand); }
.nav-list a:hover::after, .nav-list a.active::after { width: 100%; }
.nav-cta { margin-left: 6px; }

/* 进入中台（外部入口） */
.nav-list a.nav-ext {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 14px; border-radius: 999px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, #f6f8fc 0%, #eef2f9 100%);
  color: var(--ink-900); font-weight: 600;
  transition: all .2s ease;
}
.nav-list a.nav-ext::after { display: none; }
.nav-list a.nav-ext .ext-ic {
  display: inline-flex; align-items: center; justify-content: center;
  width: 14px; height: 14px; color: var(--brand);
}
.nav-list a.nav-ext:hover {
  border-color: var(--brand);
  background: linear-gradient(180deg, var(--brand) 0%, var(--brand-2) 100%);
  color: #fff;
  box-shadow: 0 6px 18px -8px rgba(36,84,255,.55);
}
.nav-list a.nav-ext:hover .ext-ic { color: #fff; }

.burger {
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  width: 44px; height: 44px; padding: 0 9px; border: 1px solid var(--line);
  background: #fff; border-radius: 10px;
}
.burger span { height: 2px; border-radius: 2px; background: var(--ink-900); transition: all .3s ease; }
.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 首页 Hero ---------- */
.home-hero {
  position: relative; overflow: hidden;
  padding: 84px 0 0;
  background:
    radial-gradient(900px 460px at 8% -10%, rgba(47, 98, 245, .10), transparent 60%),
    radial-gradient(760px 420px at 100% 0%, rgba(35, 197, 232, .08), transparent 55%);
}
.home-hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image:
    linear-gradient(90deg, rgba(16, 32, 63, .045) 1px, transparent 1px),
    linear-gradient(rgba(16, 32, 63, .045) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(720px 420px at 30% 0%, #000 30%, transparent 75%);
          mask-image: radial-gradient(720px 420px at 30% 0%, #000 30%, transparent 75%);
}
.hero-grid {
  position: relative;
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px;
  align-items: center; padding-bottom: 70px;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 16px; border-radius: 999px;
  background: #fff; border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  font-size: .84rem; font-weight: 600; color: var(--ink-700);
  margin-bottom: 26px;
}
.hero-badge i { width: 8px; height: 8px; border-radius: 50%; background: #22c55e; box-shadow: 0 0 0 4px rgba(34,197,94,.15); }
.hero-title { font-size: clamp(2.15rem, 4.6vw, 3.4rem); line-height: 1.22; color: var(--ink-900); font-weight: 800; letter-spacing: .5px; }
.hero-title .grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-sub { margin: 22px 0 34px; max-width: 540px; font-size: 1.08rem; color: var(--ink-500); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-note { margin-top: 18px; font-size: .86rem; color: var(--ink-300); }

.trust-strip {
  position: relative; border-top: 1px solid var(--line);
  display: grid; grid-template-columns: repeat(4, 1fr);
}
.trust-item { padding: 26px 24px 30px; display: flex; align-items: baseline; gap: 12px; }
.trust-item + .trust-item { border-left: 1px solid var(--line); }
.trust-num { font-size: 2.05rem; font-weight: 800; line-height: 1; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; letter-spacing: .5px; }
.trust-label { color: var(--ink-500); font-size: .95rem; }

/* ---------- Hero 示意图 ---------- */
.hero-art { position: relative; padding: 18px 12px 46px 6px; }
.app-card {
  position: relative; z-index: 1;
  background: #fff; border-radius: var(--radius-lg);
  box-shadow: 0 34px 70px rgba(16, 32, 63, .14);
  border: 1px solid var(--line);
  overflow: hidden;
}
.app-card-bar {
  display: flex; align-items: center; gap: 6px;
  padding: 12px 16px; border-bottom: 1px solid var(--line); background: #fafcff;
}
.app-card-bar .dot { width: 9px; height: 9px; border-radius: 50%; background: #e2e8f4; }
.app-card-bar .dot:nth-child(1) { background: #ff8a8a; }
.app-card-bar .dot:nth-child(2) { background: #ffd166; }
.app-card-bar .dot:nth-child(3) { background: #6fd98c; }
.bar-url { margin-left: 10px; font-size: .72rem; color: var(--ink-300); background: var(--bg-soft); border-radius: 6px; padding: 3px 12px; }
.app-body { display: grid; grid-template-columns: 96px 1fr; }
.app-side { background: linear-gradient(180deg, #f7faff, #f1f6ff); border-right: 1px solid var(--line); padding: 18px 12px; display: flex; flex-direction: column; gap: 12px; }
.app-side span { height: 10px; border-radius: 6px; background: #e3eaf8; }
.app-side span:nth-child(1) { background: var(--brand); height: 30px; border-radius: 8px; }
.app-side span:nth-child(4) { width: 70%; }
.app-main { padding: 20px; }
.app-main .greet { height: 12px; width: 42%; background: #dfe7f6; border-radius: 6px; }
.kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 16px 0; }
.kpi { background: var(--bg-soft); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; }
.kpi em { font-style: normal; font-size: .7rem; color: var(--ink-500); display: block; }
.kpi strong { font-size: 1.02rem; font-weight: 800; color: var(--ink-900); }
.kpi small { font-size: .62rem; color: #2f9e57; font-weight: 600; }
.chart-wrap { background: var(--bg-soft); border: 1px solid var(--line); border-radius: 12px; padding: 14px; }
.chart-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.chart-head b { font-size: .78rem; color: var(--ink-700); font-weight: 600; }
.chart-head em { font-style: normal; font-size: .66rem; color: var(--ink-300); }
.bars { display: flex; align-items: flex-end; gap: 8px; height: 110px; }
.bars i {
  flex: 1; border-radius: 6px 6px 3px 3px; height: var(--h);
  background: linear-gradient(180deg, #7aa2ff, #2f62f5);
  opacity: .92; transform-origin: bottom; animation: growBar 1.1s cubic-bezier(.22,.61,.36,1) both;
}
.bars i:nth-child(2n) { background: linear-gradient(180deg, #54e0ff, #23c5e8); }
.bars i:nth-child(6), .bars i:nth-child(7) { background: linear-gradient(180deg, #c6d6ff, #8fb0ff); }
@keyframes growBar { from { transform: scaleY(0); } to { transform: scaleY(1); } }
.lines { margin-top: 14px; display: flex; flex-direction: column; gap: 8px; }
.lines span { height: 8px; border-radius: 5px; background: #edf2fc; }
.lines span:nth-child(1) { width: 96%; background: #dbe5f8; }
.lines span:nth-child(2) { width: 82%; }
.lines span:nth-child(3) { width: 66%; }

.phone-float {
  position: absolute; left: -16px; bottom: 2px; z-index: 2;
  width: 138px; border-radius: 20px; background: #fff;
  border: 1px solid var(--line); box-shadow: 0 20px 44px rgba(16, 32, 63, .2);
  padding: 10px 12px 14px; transform: rotate(-5deg);
}
.phone-float::before { content: ""; display: block; width: 44px; height: 5px; border-radius: 4px; background: #e5ebf7; margin: 0 auto 10px; }
.phone-float b { display: flex; align-items: center; gap: 6px; font-size: .7rem; color: var(--ink-900); margin-bottom: 9px; }
.phone-float b i { width: 7px; height: 7px; border-radius: 50%; background: var(--grad); }
.phone-float span { display: block; height: 8px; border-radius: 5px; background: #edf2fc; margin-bottom: 7px; }
.phone-float span:nth-of-type(1) { width: 88%; }
.phone-float span:nth-of-type(2) { width: 70%; }
.phone-float span:nth-of-type(3) { width: 92%; background: linear-gradient(90deg, #dbe5f8, #dbe5f8); }
.phone-float .pf-btn { height: 22px; border-radius: 7px; margin-top: 8px; background: var(--grad); }

.float-chip {
  position: absolute; z-index: 3; display: inline-flex; align-items: center; gap: 7px;
  background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-md);
  border-radius: 999px; padding: 9px 15px;
  font-size: .8rem; font-weight: 600; color: var(--ink-700);
  animation: floaty 5s ease-in-out infinite;
}
.float-chip::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: #22c55e; }
.float-chip.fc-a { top: 16px; right: -4px; }
.float-chip.fc-b { bottom: 168px; right: -14px; animation-delay: -2.4s; }
.float-chip.fc-b::before { background: var(--cyan); }
@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-9px); } }

/* ---------- 首页 核心业务 ---------- */
.pillars { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.pcard {
  position: relative; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: 34px 28px 30px;
  transition: all .3s ease; overflow: hidden;
}
.pcard::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: var(--grad); transform: scaleX(0); transform-origin: left; transition: transform .35s ease;
}
.pcard:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
.pcard:hover::before { transform: scaleX(1); }
.pcard-ic {
  width: 58px; height: 58px; border-radius: 16px; margin-bottom: 22px;
  display: grid; place-items: center; color: var(--brand);
  background: var(--brand-soft);
}
.pcard-ic svg { width: 27px; height: 27px; }
.pcard h3 { font-size: 1.14rem; color: var(--ink-900); margin-bottom: 10px; }
.pcard p { font-size: .93rem; color: var(--ink-500); line-height: 1.8; }
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.tag { font-size: .74rem; font-weight: 500; color: var(--ink-500); background: var(--bg-soft); border: 1px solid var(--line); border-radius: 999px; padding: 4px 12px; }
.pcard-more { display: inline-flex; align-items: center; gap: 6px; margin-top: 20px; font-size: .88rem; font-weight: 600; color: var(--brand); }
.pcard-more svg { width: 15px; height: 15px; transition: transform .25s ease; }
.pcard-more:hover svg { transform: translateX(4px); }

/* ---------- 为什么选择 ---------- */
.fgrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.fcard {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 30px 28px; transition: all .3s ease;
}
.section--alt .fcard { background: #fff; }
.fcard:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.fcard-ic { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.fcard-ic i { width: 44px; height: 44px; flex: none; border-radius: 12px; display: grid; place-items: center; color: var(--brand); background: var(--brand-soft); }
.fcard-ic i svg { width: 21px; height: 21px; }
.fcard-ic span { font-size: 1.02rem; font-weight: 700; color: var(--ink-900); line-height: 1.4; }
.fcard p { font-size: .93rem; color: var(--ink-500); }

/* ---------- 服务流程 ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.step {
  position: relative; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: 34px 26px 30px;
}
.step-no {
  font-size: 2.6rem; font-weight: 800; line-height: 1;
  background: var(--grad-soft);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  font-family: Georgia, serif;
  margin-bottom: 14px;
}
.step h3 { font-size: 1.08rem; color: var(--ink-900); margin-bottom: 8px; }
.step p { font-size: .9rem; color: var(--ink-500); }
.step::after {
  content: ""; position: absolute; top: 44px; right: -24px; width: 24px; height: 2px;
  background: repeating-linear-gradient(90deg, var(--ink-300) 0 6px, transparent 6px 12px);
}
.step:last-child::after { display: none; }

/* ---------- CTA 横幅 ---------- */
.cta { padding: 30px 0 110px; }
.cta-panel {
  position: relative; overflow: hidden;
  border-radius: 30px; padding: 74px 60px;
  background:
    radial-gradient(600px 300px at 85% -40%, rgba(84, 224, 255, .35), transparent 60%),
    radial-gradient(600px 320px at 0% 130%, rgba(120, 90, 255, .35), transparent 55%),
    linear-gradient(120deg, #12295e, #0b1733 70%);
  color: #fff; text-align: center;
}
.cta-panel::before {
  content: ""; position: absolute; inset: 0; opacity: .5; pointer-events: none;
  background-image:
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 40px 40px;
}
.cta-panel > * { position: relative; }
.cta-panel h2 { font-size: clamp(1.7rem, 3.2vw, 2.5rem); font-weight: 800; letter-spacing: 1px; }
.cta-panel p { margin: 14px auto 34px; max-width: 560px; color: rgba(255,255,255,.82); }
.cta-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 14px; }
.cta-tel { margin-top: 22px; font-size: .88rem; color: rgba(255,255,255,.6); }
.cta-tel b { color: #fff; font-weight: 700; letter-spacing: 1px; }

/* ---------- 内页 Banner ---------- */
.page-hero {
  position: relative; overflow: hidden; color: #fff;
  padding: 92px 0 78px;
  background:
    radial-gradient(720px 320px at 90% -20%, rgba(84, 224, 255, .28), transparent 60%),
    radial-gradient(640px 300px at -5% 120%, rgba(91, 140, 255, .35), transparent 55%),
    linear-gradient(120deg, #12295e, #0b1733 75%);
}
.page-hero::before {
  content: ""; position: absolute; inset: 0; opacity: .45; pointer-events: none;
  background-image:
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 44px 44px;
}
.page-hero .container { position: relative; }
.crumb { display: flex; align-items: center; gap: 10px; font-size: .86rem; color: rgba(255,255,255,.65); margin-bottom: 18px; }
.crumb a { transition: color .2s; }
.crumb a:hover { color: #fff; }
.crumb i { font-style: normal; opacity: .6; }
.page-hero h1 { font-size: clamp(2rem, 4vw, 2.9rem); font-weight: 800; letter-spacing: 1px; }
.page-hero .lead { margin-top: 14px; max-width: 620px; font-size: 1.04rem; color: rgba(255,255,255,.78); }

/* ---------- 关于我们 ---------- */
.story-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 60px; align-items: center; }
.story-txt p { color: var(--ink-500); font-size: 1.02rem; margin-bottom: 18px; }
.story-txt p strong { color: var(--ink-900); font-weight: 700; }
.story-txt .lead-p { font-size: 1.14rem; color: var(--ink-700); line-height: 2; }
.story-txt .lead-p strong { color: var(--brand); }
.highlight-card {
  background: var(--bg-deep); border-radius: var(--radius-lg); color: #fff;
  padding: 40px 34px; position: relative; overflow: hidden;
}
.highlight-card::before {
  content: ""; position: absolute; width: 240px; height: 240px; right: -80px; top: -80px;
  border-radius: 50%; background: radial-gradient(circle, rgba(84,224,255,.35), transparent 65%);
}
.highlight-card h3 { font-size: 1.25rem; font-weight: 700; margin-bottom: 10px; }
.highlight-card > p { color: rgba(255,255,255,.75); font-size: .96rem; margin-bottom: 26px; }
.hl-list { display: flex; flex-direction: column; gap: 18px; }
.hl-list li { display: flex; gap: 12px; align-items: flex-start; }
.hl-list svg { width: 20px; height: 20px; flex: none; color: #54e0ff; margin-top: 3px; }
.hl-list span { color: rgba(255,255,255,.92); font-size: .98rem; }
.hl-list span b { display: block; font-size: 1rem; color: #fff; font-weight: 700; margin-bottom: 2px; }

.vgrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.vcard { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 36px 30px; text-align: center; transition: all .3s ease; }
.vcard:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.vcard-ic {
  width: 62px; height: 62px; margin: 0 auto 20px; border-radius: 18px;
  display: grid; place-items: center; color: #fff; background: var(--grad);
  box-shadow: var(--shadow-brand);
}
.vcard-ic svg { width: 27px; height: 27px; }
.vcard h3 { font-size: 1.2rem; color: var(--ink-900); margin-bottom: 10px; }
.vcard p { font-size: .94rem; color: var(--ink-500); }

.commit-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.commit { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 30px 24px; display: flex; gap: 16px; align-items: flex-start; transition: all .3s; }
.commit:hover { box-shadow: var(--shadow-sm); border-color: #cfdbfa; }
.commit-ic { width: 46px; height: 46px; flex: none; border-radius: 13px; display: grid; place-items: center; color: var(--brand); background: var(--brand-soft); }
.commit-ic svg { width: 22px; height: 22px; }
.commit b { display: block; font-size: .96rem; color: var(--ink-900); margin-bottom: 5px; }
.commit p { font-size: .84rem; color: var(--ink-500); line-height: 1.7; }

/* ---------- 产品服务页 ---------- */
.anchor-chips { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  background: #fff; border: 1px solid var(--line); border-radius: 999px;
  padding: 10px 20px; font-size: .92rem; font-weight: 600; color: var(--ink-700);
  transition: all .25s ease;
}
.chip svg { width: 16px; height: 16px; color: var(--brand); }
.chip:hover { border-color: var(--brand); color: var(--brand); box-shadow: var(--shadow-sm); transform: translateY(-2px); }

.sgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.scard {
  background: #fff; border: 1px solid var(--line); border-radius: 26px;
  padding: 42px 38px; scroll-margin-top: 108px; position: relative; overflow: hidden;
  transition: box-shadow .3s ease;
}
.scard:hover { box-shadow: var(--shadow-md); }
.scard::before {
  content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 5px;
  background: var(--grad); opacity: .85;
}
.scard-head { display: flex; align-items: center; gap: 18px; margin-bottom: 18px; }
.scard-head .sc-ic { width: 62px; height: 62px; flex: none; border-radius: 18px; display: grid; place-items: center; color: #fff; background: var(--grad); box-shadow: 0 10px 22px rgba(47,98,245,.28); }
.scard-head .sc-ic svg { width: 28px; height: 28px; }
.scard-head h3 { font-size: 1.45rem; color: var(--ink-900); }
.scard-head p { font-size: .9rem; color: var(--ink-300); }
.scard > .sc-desc { color: var(--ink-500); margin-bottom: 20px; }
.sc-label { display: flex; align-items: center; gap: 8px; font-size: .82rem; font-weight: 700; letter-spacing: 2px; color: var(--brand); margin: 22px 0 12px; }
.sc-label::after { content: ""; height: 1px; flex: 1; background: var(--line); }
.slist { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 18px; }
.slist li { position: relative; padding-left: 26px; font-size: .94rem; color: var(--ink-700); }
.slist li::before { content: "✓"; position: absolute; left: 0; top: 0; width: 18px; height: 18px; border-radius: 50%; background: var(--brand-soft); color: var(--brand); font-size: .72rem; font-weight: 800; display: grid; place-items: center; margin-top: 4px; }
.sc-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }

.industry-wrap { text-align: center; }
.industry-list { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 36px; }
.industry {
  display: flex; align-items: center; gap: 10px;
  background: #fff; border: 1px solid var(--line); border-radius: 16px;
  padding: 16px 22px; min-width: 150px; transition: all .25s ease;
}
.industry:hover { border-color: var(--brand); box-shadow: var(--shadow-sm); transform: translateY(-3px); }
.industry svg { width: 20px; height: 20px; color: var(--brand); flex: none; }
.industry span { font-weight: 600; color: var(--ink-700); font-size: .94rem; }
.industry small { display: block; font-size: .72rem; color: var(--ink-300); font-weight: 400; }

/* ---------- 联系我们 ---------- */
.ccards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.ccard {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 30px 24px; text-align: center; transition: all .3s ease;
}
.ccard:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.ccard-ic { width: 54px; height: 54px; margin: 0 auto 16px; border-radius: 15px; display: grid; place-items: center; color: var(--brand); background: var(--brand-soft); }
.ccard-ic svg { width: 24px; height: 24px; }
.ccard b { display: block; font-size: .86rem; color: var(--ink-300); font-weight: 600; margin-bottom: 6px; letter-spacing: 1px; }
.ccard strong { font-size: 1rem; color: var(--ink-900); line-height: 1.5; }
.ccard a { color: var(--brand); }

.contact-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: start; }
.form-card {
  background: #fff; border: 1px solid var(--line); border-radius: 26px;
  padding: 46px 42px; box-shadow: var(--shadow-sm);
}
.form-card h3 { font-size: 1.5rem; color: var(--ink-900); margin-bottom: 6px; }
.form-card .fc-sub { color: var(--ink-500); font-size: .95rem; margin-bottom: 30px; }
.fgrid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field--full { grid-column: 1 / -1; }
.field label { font-size: .9rem; font-weight: 600; color: var(--ink-900); }
.field label i { color: #e5484d; font-style: normal; }
.field input, .field select, .field textarea {
  font-family: inherit; font-size: .96rem; color: var(--ink-900);
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 12px 15px; background: #fbfdff; transition: all .22s ease; outline: none;
}
.field textarea { resize: vertical; min-height: 130px; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--brand); background: #fff; box-shadow: 0 0 0 4px rgba(47,98,245,.12); }
.field ::placeholder { color: var(--ink-300); }
.form-ok {
  display: none; margin-top: 18px; align-items: flex-start; gap: 12px;
  background: #effaf3; border: 1px solid #bfe9cf; color: #1f7a44;
  border-radius: var(--radius-md); padding: 16px 18px; font-size: .93rem;
}
.form-ok.show { display: flex; }
.form-ok svg { width: 20px; height: 20px; flex: none; margin-top: 2px; }

.side-panel { display: flex; flex-direction: column; gap: 22px; }
.side-tip {
  border-radius: 22px; padding: 34px 30px; color: #fff; position: relative; overflow: hidden;
  background:
    radial-gradient(300px 160px at 90% -20%, rgba(84,224,255,.3), transparent 60%),
    linear-gradient(130deg, #14295c, #0b1733);
}
.side-tip h4 { font-size: 1.18rem; margin-bottom: 12px; }
.side-tip p { color: rgba(255,255,255,.8); font-size: .94rem; }
.side-tip ul { margin-top: 18px; display: flex; flex-direction: column; gap: 12px; }
.side-tip li { display: flex; gap: 10px; align-items: flex-start; font-size: .92rem; color: rgba(255,255,255,.9); }
.side-tip li svg { width: 18px; height: 18px; flex: none; color: #54e0ff; margin-top: 4px; }
.side-card { border: 1px solid var(--line); border-radius: 22px; padding: 30px; background: #fff; }
.side-card h4 { font-size: 1.08rem; color: var(--ink-900); margin-bottom: 18px; display: flex; align-items: center; gap: 10px; }
.side-card h4 svg { width: 20px; height: 20px; color: var(--brand); }
.visit-row { display: flex; align-items: flex-start; gap: 12px; padding: 14px 0; border-bottom: 1px dashed var(--line); }
.visit-row:last-child { border-bottom: 0; }
.visit-row:first-child { padding-top: 0; }
.visit-row svg { width: 18px; height: 18px; color: var(--brand); flex: none; margin-top: 4px; }
.visit-row b { display: block; font-size: .9rem; color: var(--ink-700); }
.visit-row b span { color: var(--ink-500); font-weight: 400; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--bg-deep); color: rgba(255,255,255,.72); }
.footer-top { padding: 76px 0 56px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1.2fr 1.3fr; gap: 48px; }
.footer-brand .logo-txt b { color: #fff; }
.footer-brand .logo-txt em { color: rgba(255,255,255,.4); }
.footer-brand p { font-size: .94rem; line-height: 1.9; margin-top: 20px; max-width: 320px; }
.footer-col h5 { color: #fff; font-size: 1rem; font-weight: 700; margin-bottom: 22px; letter-spacing: .5px; }
.footer-col ul { display: flex; flex-direction: column; gap: 13px; }
.footer-col ul a { font-size: .94rem; transition: color .2s ease; }
.footer-col ul a:hover { color: #fff; }
.f-col-contact li { display: flex; gap: 11px; align-items: flex-start; font-size: .93rem; line-height: 1.7; }
.f-col-contact svg { width: 17px; height: 17px; flex: none; color: #5b8cff; margin-top: 4px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.09); padding: 24px 0; }
.footer-bottom .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; font-size: .86rem; color: rgba(255,255,255,.5); }
.footer-bottom a { color: rgba(255,255,255,.5); transition: color .2s; }
.footer-bottom a:hover { color: #fff; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .pillars { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); row-gap: 48px; }
  .step:nth-child(2)::after { display: none; }
  .fgrid { grid-template-columns: repeat(2, 1fr); }
  .commit-grid { grid-template-columns: repeat(2, 1fr); }
  .ccards { grid-template-columns: repeat(2, 1fr); }
  .hero-grid { gap: 34px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}

@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; padding-bottom: 56px; }
  .hero-art { max-width: 560px; }
  .story-grid, .contact-grid { grid-template-columns: 1fr; gap: 44px; }
  .sgrid { grid-template-columns: 1fr; }
  .vgrid { grid-template-columns: 1fr; }
}

@media (max-width: 920px) {
  .section { padding: 80px 0; }
  .nav {
    position: fixed; top: 78px; right: 0; bottom: 0; z-index: 90;
    width: min(78vw, 340px); flex-direction: column; align-items: stretch; gap: 10px;
    background: #fff; padding: 30px 28px;
    border-left: 1px solid var(--line); box-shadow: -20px 0 50px rgba(16,32,63,.1);
    transform: translateX(105%); transition: transform .35s ease;
  }
  .nav.open { transform: translateX(0); }
  .nav-list { flex-direction: column; align-items: stretch; gap: 6px; }
  .nav-list a { padding: 12px 8px; font-size: 1.05rem; border-radius: 10px; }
  .nav-list a::after { display: none; }
.nav-list a:hover, .nav-list a.active { background: var(--brand-soft); color: var(--brand); }
.nav-list a.nav-ext { justify-content: space-between; padding: 12px 14px; }
.nav-list a.nav-ext:hover { background: linear-gradient(180deg, var(--brand) 0%, var(--brand-2) 100%); color: #fff; }
.nav-cta { margin: 14px 0 0; justify-content: center; }
  .burger { display: flex; }
  body.nav-lock { overflow: hidden; }
}

@media (max-width: 760px) {
  .container { padding: 0 20px; }
  .trust-strip { grid-template-columns: 1fr 1fr; }
  .trust-item { padding: 20px 12px 24px; flex-direction: column; gap: 6px; }
  .trust-item + .trust-item { border-left: 0; }
  .trust-item:nth-child(odd) { border-left: 0; }
  .trust-item:nth-child(3), .trust-item:nth-child(4) { border-top: 1px solid var(--line); }
  .trust-item:nth-child(even) { border-left: 1px solid var(--line); }
  .hero-actions .btn { width: 100%; }
  .float-chip.fc-a { right: 4px; }
  .float-chip.fc-b { right: 6px; bottom: 150px; }
  .phone-float { width: 118px; }
  .cta-panel { padding: 56px 24px; border-radius: 24px; }
  .form-card { padding: 34px 22px; }
  .fgrid2 { grid-template-columns: 1fr; }
  .scard { padding: 32px 24px; }
  .footer-top { padding: 60px 0 40px; }
  .footer-grid { grid-template-columns: 1fr; gap: 34px; }
  .footer-bottom .container { justify-content: center; text-align: center; }
}

@media (max-width: 560px) {
  .pillars { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .step::after { display: none; }
  .fgrid { grid-template-columns: 1fr; }
  .commit-grid { grid-template-columns: 1fr; }
  .ccards { grid-template-columns: 1fr; }
  .slist { grid-template-columns: 1fr; }
  .app-body { grid-template-columns: 64px 1fr; }
  .kpis { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .kpi { padding: 10px; }
  .page-hero { padding: 72px 0 60px; }
  .sec-head { margin-bottom: 44px; }
}