/* ==========================================================
   思创软件 官方网站 - 全局样式
   设计基调：简约 / 大气 / 留白 / 科技蓝
   ========================================================== */

:root {
  --primary: #1a56db;
  --primary-dark: #1442ad;
  --primary-light: #e8f0fe;
  --accent: #0ea5e9;
  --dark: #0f172a;
  --text: #334155;
  --text-light: #64748b;
  --muted: #94a3b8;
  --border: #e2e8f0;
  --bg: #ffffff;
  --bg-soft: #f6f8fb;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 10px rgba(15, 23, 42, .05);
  --shadow: 0 10px 30px rgba(15, 23, 42, .07);
  --shadow-lg: 0 22px 55px rgba(15, 23, 42, .12);
  --max: 1200px;
  --nav-h: 74px;
  --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial,
    system-ui, -apple-system, "Segoe UI", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  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; transition: .25s; }
ul { list-style: none; }

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- 通用排版 ---------- */
.section { padding: 100px 0; }
.section--soft { background: var(--bg-soft); }

.sec-head { max-width: 720px; margin: 0 auto 60px; text-align: center; }
.sec-head.left { margin-left: 0; text-align: left; }

.eyebrow {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 14px;
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 26px;
  height: 2px;
  background: var(--primary);
  vertical-align: middle;
  margin-right: 10px;
  border-radius: 2px;
}

.sec-title {
  font-size: 38px;
  line-height: 1.35;
  font-weight: 700;
  color: var(--dark);
  letter-spacing: -.5px;
}
.sec-desc {
  margin-top: 18px;
  font-size: 17px;
  color: var(--text-light);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 50px;
  padding: 0 30px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: .28s cubic-bezier(.4, 0, .2, 1);
  white-space: nowrap;
}
.btn--primary { background: var(--primary); color: #fff; box-shadow: 0 8px 22px rgba(26, 86, 219, .28); }
.btn--primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 12px 28px rgba(26, 86, 219, .36); }
.btn--ghost { background: #fff; color: var(--dark); border-color: var(--border); }
.btn--ghost:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.btn--light { background: #fff; color: var(--primary); }
.btn--light:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(0, 0, 0, .18); }
.btn--outline-light { border-color: rgba(255, 255, 255, .45); color: #fff; }
.btn--outline-light:hover { background: rgba(255, 255, 255, .12); border-color: #fff; }
.btn--sm { height: 42px; padding: 0 22px; font-size: 14px; }

.link-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-weight: 600;
  font-size: 15px;
}
.link-more:hover { gap: 12px; }
.link-more svg { width: 16px; height: 16px; }

/* ==========================================================
   顶部导航
   ========================================================== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  background: rgba(255, 255, 255, .86);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: .3s;
}
.header.scrolled {
  background: #fff;
  border-bottom-color: var(--border);
  box-shadow: 0 4px 20px rgba(15, 23, 42, .05);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: var(--nav-h); }

.logo { display: flex; align-items: center; gap: 11px; }
.logo-mark {
  width: 38px; height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: grid; place-items: center;
  box-shadow: 0 6px 16px rgba(26, 86, 219, .3);
}
.logo-mark svg { width: 22px; height: 22px; }
.logo-text b { display: block; font-size: 19px; color: var(--dark); letter-spacing: 1px; line-height: 1.2; }
.logo-text span { display: block; font-size: 10px; letter-spacing: 2.4px; color: var(--muted); text-transform: uppercase; }

.menu { display: flex; align-items: center; gap: 38px; }
.menu a { font-size: 15.5px; color: var(--text); font-weight: 500; position: relative; padding: 6px 0; }
.menu a::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 0; height: 2px; background: var(--primary); border-radius: 2px; transition: .28s;
}
.menu a:hover { color: var(--primary); }
.menu a:hover::after, .menu a.active::after { width: 100%; }
.menu a.active { color: var(--primary); font-weight: 600; }

.nav-cta { display: flex; align-items: center; gap: 16px; }
.nav-phone { display: flex; align-items: center; gap: 7px; color: var(--dark); font-weight: 700; font-size: 16px; }
.nav-phone svg { width: 17px; height: 17px; color: var(--primary); }

.burger { display: none; width: 42px; height: 42px; background: none; border: 0; cursor: pointer; }
.burger span { display: block; width: 22px; height: 2px; background: var(--dark); margin: 5px auto; border-radius: 2px; transition: .3s; }
.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); }

/* 移动端抽屉 */
.drawer {
  position: fixed; inset: var(--nav-h) 0 0 0;
  background: #fff; z-index: 99;
  padding: 26px 24px 40px;
  transform: translateX(100%);
  transition: transform .34s cubic-bezier(.4, 0, .2, 1);
  overflow-y: auto;
}
.drawer.open { transform: none; }
.drawer a { display: block; padding: 16px 0; font-size: 18px; border-bottom: 1px solid var(--border); color: var(--dark); font-weight: 500; }
.drawer a.active { color: var(--primary); }
.drawer .btn { width: 100%; margin-top: 26px; }

/* ==========================================================
   Hero 首页主视觉
   ========================================================== */
.hero {
  position: relative;
  padding: calc(var(--nav-h) + 90px) 0 110px;
  background:
    radial-gradient(900px 480px at 88% 8%, rgba(14, 165, 233, .13), transparent 62%),
    radial-gradient(760px 460px at 8% 92%, rgba(26, 86, 219, .12), transparent 60%),
    #fff;
  overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; inset: auto 0 0 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 60px; align-items: center; }

.badge-pill {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 7px 16px 7px 8px;
  background: #fff; border: 1px solid var(--border);
  border-radius: 40px; font-size: 13.5px; color: var(--text-light);
  box-shadow: var(--shadow-sm);
}
.badge-pill i {
  font-style: normal; background: var(--primary-light); color: var(--primary);
  padding: 3px 10px; border-radius: 30px; font-size: 12.5px; font-weight: 700;
}

.hero h1 {
  margin-top: 26px;
  font-size: 54px;
  line-height: 1.22;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -1.2px;
}
.hero h1 em { font-style: normal; color: var(--primary); position: relative; }
.hero h1 em::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 4px; height: 10px;
  background: rgba(26, 86, 219, .14); border-radius: 4px; z-index: -1;
}
.hero-sub { margin-top: 24px; font-size: 18px; color: var(--text-light); max-width: 520px; }
.hero-actions { margin-top: 40px; display: flex; gap: 14px; flex-wrap: wrap; }

.hero-points { margin-top: 46px; display: flex; gap: 34px; flex-wrap: wrap; }
.hero-points li { display: flex; align-items: center; gap: 8px; font-size: 15px; color: var(--text); }
.hero-points svg { width: 18px; height: 18px; color: var(--primary); flex: none; }

/* Hero 右侧：抄表后台插画 */
.hero-visual { position: relative; }
.dash-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); padding: 22px; position: relative; z-index: 2;
}
.dash-top { display: flex; align-items: center; justify-content: space-between; padding-bottom: 16px; border-bottom: 1px solid var(--border); }
.dash-top b { font-size: 15px; color: var(--dark); }
.dot-row { display: flex; gap: 6px; }
.dot-row i { width: 9px; height: 9px; border-radius: 50%; background: #e2e8f0; display: block; }
.dot-row i:first-child { background: #f87171; }
.dot-row i:nth-child(2) { background: #fbbf24; }
.dot-row i:nth-child(3) { background: #34d399; }

.meter-list { margin-top: 16px; display: grid; gap: 12px; }
.meter {
  display: flex; align-items: center; gap: 14px;
  border: 1px solid var(--border); border-radius: 12px; padding: 13px 15px;
  background: var(--bg-soft);
}
.meter-ico { width: 40px; height: 40px; border-radius: 10px; background: var(--primary-light); display: grid; place-items: center; flex: none; }
.meter-ico svg { width: 20px; height: 20px; color: var(--primary); }
.meter-info { flex: 1; min-width: 0; }
.meter-info b { display: block; font-size: 14.5px; color: var(--dark); }
.meter-info span { font-size: 12.5px; color: var(--muted); }
.meter-num { text-align: right; }
.meter-num b { display: block; font-size: 17px; color: var(--dark); font-variant-numeric: tabular-nums; }
.meter-num span { font-size: 11.5px; color: #10b981; font-weight: 600; }
.bar { height: 5px; border-radius: 4px; background: #e2e8f0; margin-top: 7px; overflow: hidden; }
.bar i { display: block; height: 100%; border-radius: 4px; background: linear-gradient(90deg, var(--primary), var(--accent)); }

.float-card {
  position: absolute; background: #fff; border: 1px solid var(--border);
  border-radius: 14px; box-shadow: var(--shadow); padding: 14px 18px; z-index: 3;
}
.float-card--a { left: -46px; top: 22%; }
.float-card--b { right: -34px; bottom: 12%; }
.float-card b { display: block; font-size: 20px; color: var(--dark); }
.float-card span { font-size: 12.5px; color: var(--text-light); }
.float-tag {
  display: inline-flex; align-items: center; gap: 6px; font-size: 12px;
  color: #10b981; font-weight: 600; margin-bottom: 2px;
}

/* ==========================================================
   数据统计条
   ========================================================== */
.stats { padding: 0 0 96px; background: #fff; }
.stats-box {
  display: grid; grid-template-columns: repeat(4, 1fr);
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow); overflow: hidden;
}
.stat { padding: 34px 28px; text-align: center; border-right: 1px solid var(--border); }
.stat:last-child { border-right: 0; }
.stat b { display: block; font-size: 40px; font-weight: 800; color: var(--dark); line-height: 1.1; font-variant-numeric: tabular-nums; }
.stat b i { font-style: normal; font-size: 22px; color: var(--primary); margin-left: 2px; }
.stat span { display: block; margin-top: 8px; font-size: 14.5px; color: var(--text-light); }

/* ==========================================================
   核心业务 / 卡片
   ========================================================== */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

.card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 38px 32px; transition: .32s cubic-bezier(.4, 0, .2, 1);
  position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.card::before {
  content: ""; position: absolute; left: 0; top: 0; width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0); transform-origin: left; transition: .35s;
}
.card:hover::before { transform: scaleX(1); }

.card-ico {
  width: 56px; height: 56px; border-radius: 14px;
  background: linear-gradient(135deg, var(--primary-light), #dbeafe);
  display: grid; place-items: center; margin-bottom: 24px;
}
.card-ico svg { width: 27px; height: 27px; color: var(--primary); }
.card h3 { font-size: 21px; color: var(--dark); font-weight: 700; margin-bottom: 12px; }
.card p { font-size: 15px; color: var(--text-light); }
.card ul { margin-top: 20px; display: grid; gap: 10px; }
.card ul li { position: relative; padding-left: 20px; font-size: 14.5px; color: var(--text); }
.card ul li::before {
  content: ""; position: absolute; left: 0; top: 10px;
  width: 7px; height: 7px; border-radius: 50%; background: var(--accent);
}
.card .link-more { margin-top: 24px; }

.card--feature { padding: 30px 26px; }
.card--feature .card-ico { width: 48px; height: 48px; margin-bottom: 18px; border-radius: 12px; }
.card--feature .card-ico svg { width: 23px; height: 23px; }
.card--feature h3 { font-size: 18px; margin-bottom: 8px; }
.card--feature p { font-size: 14.5px; }

/* ==========================================================
   业务详解（图文交替）
   ========================================================== */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.split--reverse .split-visual { order: -1; }
.split-visual {
  background: linear-gradient(140deg, #f8fafc, #eef4ff);
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 40px; min-height: 380px; display: grid; place-items: center;
}
.split-body h3 { font-size: 32px; color: var(--dark); font-weight: 700; line-height: 1.35; }
.split-body > p { margin-top: 18px; color: var(--text-light); font-size: 16.5px; }
.feat-list { margin-top: 28px; display: grid; gap: 16px; }
.feat-list li { display: flex; gap: 14px; align-items: flex-start; }
.feat-list .tick {
  width: 24px; height: 24px; border-radius: 50%; flex: none;
  background: var(--primary-light); display: grid; place-items: center; margin-top: 3px;
}
.feat-list .tick svg { width: 13px; height: 13px; color: var(--primary); }
.feat-list b { display: block; font-size: 16px; color: var(--dark); }
.feat-list span { font-size: 14.5px; color: var(--text-light); }

/* 小图表组件 */
.chart-bars { display: flex; align-items: flex-end; gap: 14px; height: 190px; }
.chart-bars .cb { flex: 1; text-align: center; }
.chart-bars .cb i {
  display: block; border-radius: 8px 8px 4px 4px;
  background: linear-gradient(180deg, var(--accent), var(--primary));
  margin-bottom: 9px;
}
.chart-bars .cb span { font-size: 12px; color: var(--muted); }

/* ==========================================================
   客户评价
   ========================================================== */
.quote-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 34px 30px; height: 100%; display: flex; flex-direction: column;
}
.quote-card .stars { color: #f59e0b; font-size: 15px; letter-spacing: 2px; margin-bottom: 16px; }
.quote-card p { font-size: 15.5px; color: var(--text); flex: 1; }
.quote-user { display: flex; align-items: center; gap: 13px; margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--border); }
.avatar {
  width: 44px; height: 44px; border-radius: 50%; flex: none;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 15px;
}
.quote-user b { display: block; font-size: 15px; color: var(--dark); }
.quote-user span { font-size: 13px; color: var(--muted); }

/* 合作伙伴 */
.partners { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; }
.partners span {
  padding: 12px 26px; border: 1px solid var(--border); border-radius: 8px;
  background: #fff; color: var(--text-light); font-size: 15px; font-weight: 600;
  transition: .28s;
}
.partners span:hover { color: var(--primary); border-color: var(--primary); transform: translateY(-3px); box-shadow: var(--shadow-sm); }

/* ==========================================================
   行动号召
   ========================================================== */
.cta-band {
  position: relative; overflow: hidden;
  background: linear-gradient(120deg, #12307d 0%, #1a56db 48%, #0ea5e9 100%);
  border-radius: var(--radius-lg); padding: 66px 60px;
  display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap;
}
.cta-band::after {
  content: ""; position: absolute; right: -80px; top: -120px;
  width: 340px; height: 340px; border-radius: 50%;
  background: rgba(255, 255, 255, .09);
}
.cta-band::before {
  content: ""; position: absolute; left: 8%; bottom: -140px;
  width: 260px; height: 260px; border-radius: 50%;
  background: rgba(255, 255, 255, .07);
}
.cta-band h2 { font-size: 34px; color: #fff; font-weight: 700; line-height: 1.35; }
.cta-band p { margin-top: 14px; color: rgba(255, 255, 255, .82); font-size: 16.5px; }
.cta-band .btn { position: relative; z-index: 2; }

/* ==========================================================
   内页 Banner
   ========================================================== */
.page-banner {
  position: relative;
  padding: calc(var(--nav-h) + 76px) 0 76px;
  background:
    radial-gradient(700px 380px at 80% 20%, rgba(14, 165, 233, .16), transparent 60%),
    linear-gradient(120deg, #0f172a 0%, #1e3a8a 100%);
  color: #fff; overflow: hidden;
}
.page-banner h1 { font-size: 42px; font-weight: 800; letter-spacing: -.6px; line-height: 1.3; }
.page-banner p { margin-top: 16px; font-size: 17px; color: rgba(255, 255, 255, .75); max-width: 640px; }
.crumb { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255, 255, 255, .6); margin-bottom: 18px; }
.crumb a:hover { color: #fff; }
.crumb svg { width: 14px; height: 14px; }

/* ==========================================================
   关于我们
   ========================================================== */
.about-intro .split-body h3 { font-size: 30px; }
.about-tags { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 26px; }
.about-tags span {
  padding: 7px 16px; border-radius: 30px; background: var(--primary-light);
  color: var(--primary); font-size: 14px; font-weight: 600;
}

.timeline { position: relative; padding-left: 34px; }
.timeline::before {
  content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 2px;
  background: linear-gradient(180deg, var(--primary), var(--accent), transparent);
}
.tl-item { position: relative; padding-bottom: 40px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: ""; position: absolute; left: -34px; top: 6px;
  width: 16px; height: 16px; border-radius: 50%;
  background: #fff; border: 3px solid var(--primary);
}
.tl-item .year { font-size: 15px; font-weight: 800; color: var(--primary); letter-spacing: 1px; }
.tl-item h4 { font-size: 19px; color: var(--dark); margin: 6px 0 8px; }
.tl-item p { font-size: 15px; color: var(--text-light); }

.value-card {
  background: #fff; border-radius: var(--radius); padding: 32px 28px;
  border: 1px solid var(--border); height: 100%; transition: .3s;
}
.value-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.value-num {
  font-size: 34px; font-weight: 800; line-height: 1;
  color: transparent; -webkit-text-stroke: 1.5px rgba(26, 86, 219, .35);
  margin-bottom: 16px;
}
.value-card h4 { font-size: 19px; color: var(--dark); margin-bottom: 10px; }
.value-card p { font-size: 14.5px; color: var(--text-light); }

.honor {
  display: flex; align-items: center; gap: 16px; padding: 22px 24px;
  background: #fff; border: 1px solid var(--border); border-radius: 12px; transition: .3s;
}
.honor:hover { border-color: var(--primary); box-shadow: var(--shadow-sm); }
.honor-ico { width: 44px; height: 44px; border-radius: 11px; background: var(--primary-light); display: grid; place-items: center; flex: none; }
.honor-ico svg { width: 21px; height: 21px; color: var(--primary); }
.honor b { display: block; font-size: 15.5px; color: var(--dark); }
.honor span { font-size: 13.5px; color: var(--muted); }

.service-guard { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.guard {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px 26px; text-align: center; transition: .3s;
}
.guard:hover { border-color: transparent; box-shadow: var(--shadow); transform: translateY(-4px); }
.guard-ico { width: 54px; height: 54px; margin: 0 auto 18px; border-radius: 50%; background: var(--primary-light); display: grid; place-items: center; }
.guard-ico svg { width: 25px; height: 25px; color: var(--primary); }
.guard b { display: block; font-size: 17px; color: var(--dark); margin-bottom: 8px; }
.guard p { font-size: 14px; color: var(--text-light); }

/* ==========================================================
   产品服务
   ========================================================== */
.prod-block { display: grid; grid-template-columns: 1fr 1fr; gap: 66px; align-items: center; padding: 74px 0; border-bottom: 1px solid var(--border); }
.prod-block:first-child { padding-top: 0; }
.prod-block:last-child { border-bottom: 0; padding-bottom: 0; }
.prod-block--rev .prod-visual { order: -1; }

.prod-visual {
  border-radius: var(--radius-lg); padding: 38px; min-height: 340px;
  display: flex; flex-direction: column; justify-content: center;
}
.v-blue { background: linear-gradient(140deg, #eef4ff, #dbeafe); }
.v-sky { background: linear-gradient(140deg, #ecfeff, #cffafe); }
.v-slate { background: linear-gradient(140deg, #f1f5f9, #e2e8f0); }
.v-indigo { background: linear-gradient(140deg, #eef2ff, #e0e7ff); }

.prod-tag {
  display: inline-flex; align-items: center; gap: 8px; align-self: flex-start;
  background: #fff; border-radius: 30px; padding: 6px 14px;
  font-size: 13px; font-weight: 700; color: var(--primary); box-shadow: var(--shadow-sm);
}
.prod-visual h4 { font-size: 22px; color: var(--dark); margin: 20px 0 10px; }
.prod-visual p { font-size: 14.5px; color: var(--text-light); }

.mini-table { margin-top: 22px; background: #fff; border-radius: 12px; overflow: hidden; box-shadow: var(--shadow-sm); }
.mini-table .row { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; border-bottom: 1px solid var(--border); font-size: 14px; }
.mini-table .row:last-child { border-bottom: 0; }
.mini-table .row b { color: var(--dark); font-weight: 600; }
.mini-table .row span { color: var(--text-light); font-variant-numeric: tabular-nums; }
.mini-table .row .up { color: #ef4444; font-weight: 600; }

.prod-body h3 { font-size: 30px; color: var(--dark); font-weight: 700; line-height: 1.35; }
.prod-body > p { margin-top: 16px; font-size: 16px; color: var(--text-light); }
.prod-features { margin-top: 28px; display: grid; grid-template-columns: 1fr 1fr; gap: 18px 22px; }
.prod-features li { display: flex; gap: 11px; align-items: flex-start; }
.prod-features .n {
  width: 22px; height: 22px; border-radius: 6px; flex: none; margin-top: 3px;
  background: var(--primary); color: #fff; font-size: 11.5px; font-weight: 700;
  display: grid; place-items: center;
}
.prod-features b { display: block; font-size: 15px; color: var(--dark); }
.prod-features span { font-size: 13.5px; color: var(--text-light); }

/* 服务流程 */
.steps { display: grid; grid-template-columns: repeat(6, 1fr); gap: 18px; position: relative; }
.step { text-align: center; position: relative; }
.step::after {
  content: ""; position: absolute; right: -12px; top: 24px;
  width: 22px; height: 2px; background: var(--border);
}
.step:last-child::after { display: none; }
.step-n {
  width: 50px; height: 50px; margin: 0 auto 16px; border-radius: 50%;
  background: #fff; border: 2px solid var(--primary); color: var(--primary);
  font-weight: 800; font-size: 17px; display: grid; place-items: center; transition: .3s;
}
.step:hover .step-n { background: var(--primary); color: #fff; transform: scale(1.08); }
.step b { display: block; font-size: 16px; color: var(--dark); margin-bottom: 6px; }
.step span { font-size: 13.5px; color: var(--text-light); }

/* 部署方式 */
.deploy { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.deploy-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 32px 28px; transition: .3s; }
.deploy-item:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.deploy-item b { display: block; font-size: 18px; color: var(--dark); margin-bottom: 10px; }
.deploy-item p { font-size: 14.5px; color: var(--text-light); }
.deploy-item .price { margin-top: 18px; font-size: 14px; color: var(--primary); font-weight: 600; }

/* ==========================================================
   联系我们
   ========================================================== */
.contact-wrap { display: grid; grid-template-columns: .9fr 1.1fr; gap: 46px; align-items: start; }
.info-card {
  display: flex; gap: 18px; padding: 26px; background: #fff;
  border: 1px solid var(--border); border-radius: var(--radius); transition: .3s;
}
.info-card:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateY(-3px); }
.info-ico { width: 50px; height: 50px; border-radius: 13px; background: var(--primary-light); display: grid; place-items: center; flex: none; }
.info-ico svg { width: 23px; height: 23px; color: var(--primary); }
.info-card b { display: block; font-size: 13.5px; color: var(--muted); font-weight: 500; margin-bottom: 5px; }
.info-card strong { display: block; font-size: 19px; color: var(--dark); font-weight: 700; }
.info-card p { font-size: 14px; color: var(--text-light); margin-top: 4px; }

.form-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 44px; box-shadow: var(--shadow); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field { margin-bottom: 22px; }
.field label { display: block; font-size: 14.5px; color: var(--dark); font-weight: 600; margin-bottom: 9px; }
.field label i { color: #ef4444; font-style: normal; margin-left: 3px; }
.field input, .field select, .field textarea {
  width: 100%; border: 1px solid var(--border); border-radius: 10px;
  padding: 13px 15px; font-size: 15px; font-family: var(--font);
  color: var(--dark); background: #fff; transition: .25s; outline: none;
}
.field textarea { min-height: 122px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--primary); box-shadow: 0 0 0 4px rgba(26, 86, 219, .1);
}
.field input::placeholder, .field textarea::placeholder { color: var(--muted); }
.field .err { display: none; margin-top: 7px; font-size: 13px; color: #ef4444; }
.field.invalid input, .field.invalid textarea { border-color: #ef4444; }
.field.invalid .err { display: block; }

.check-line { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; color: var(--text-light); margin-bottom: 24px; }
.check-line input { width: 17px; height: 17px; margin-top: 3px; accent-color: var(--primary); flex: none; }
.form-note { margin-top: 18px; font-size: 13.5px; color: var(--muted); text-align: center; }
.form-ok {
  display: none; margin-top: 20px; padding: 16px 18px; border-radius: 10px;
  background: #ecfdf5; border: 1px solid #a7f3d0; color: #047857; font-size: 14.5px;
}
.form-ok.show { display: block; }

/* 蜜罐字段：对真人不可见，被填写即为机器人 */
.hp { position: absolute; left: -9999px; width: 0; height: 0; overflow: hidden; }

/* 算术验证码 */
.captcha-line { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.captcha-q {
  height: 48px; padding: 0 18px; min-width: 140px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--bg-soft); border: 1px solid var(--border); border-radius: 10px;
  font-weight: 700; color: var(--dark); font-size: 16.5px; letter-spacing: 1px;
  font-variant-numeric: tabular-nums;
}
.captcha-line input { flex: 1; min-width: 130px; }
.captcha-refresh {
  height: 48px; padding: 0 16px; cursor: pointer;
  border: 1px solid var(--border); background: #fff; border-radius: 10px;
  color: var(--primary); font-size: 14px; font-family: var(--font); transition: .25s;
}
.captcha-refresh:hover { border-color: var(--primary); background: var(--primary-light); }

/* 提交结果提示 */
.form-alert { display: none; padding: 14px 17px; border-radius: 10px; margin-bottom: 22px; font-size: 14.5px; line-height: 1.6; }
.form-alert.show { display: block; }
.form-alert--err { background: #fef2f2; border: 1px solid #fecaca; color: #b91c1c; }
.form-alert--ok { background: #ecfdf5; border: 1px solid #a7f3d0; color: #047857; }
.btn:disabled, .btn[disabled] { opacity: .55; cursor: not-allowed; transform: none !important; }

/* 法律条款正文 */
.legal { max-width: 880px; margin: 0 auto; }
.legal h2 {
  font-size: 21px; color: var(--dark); font-weight: 700;
  margin: 38px 0 14px; padding-left: 14px; border-left: 3px solid var(--primary);
}
.legal h2:first-child { margin-top: 0; }
.legal p { font-size: 15.5px; color: var(--text-light); line-height: 1.9; margin-bottom: 12px; }
.legal-meta { text-align: center; color: var(--muted); font-size: 13.5px; margin-bottom: 44px; }

/* 404 */
.nf-code { font-size: 130px; font-weight: 800; color: var(--primary); line-height: 1; letter-spacing: -4px; opacity: .16; }
.nf-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 34px; }

.map-box {
  margin-top: 28px; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; height: 260px; position: relative;
  background: linear-gradient(135deg, #eef4ff, #e0f2fe);
  display: grid; place-items: center;
}
.map-box .pin { text-align: center; }
.map-box .pin svg { width: 42px; height: 42px; color: var(--primary); margin: 0 auto 10px; }
.map-box .pin b { display: block; color: var(--dark); font-size: 16px; }
.map-box .pin span { font-size: 13.5px; color: var(--text-light); }

/* FAQ */
.faq { max-width: 860px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: 12px; margin-bottom: 14px; overflow: hidden; transition: .3s; }
.faq-item:hover { border-color: #cbd5e1; }
.faq-q { padding: 20px 24px; display: flex; align-items: center; justify-content: space-between; gap: 20px; cursor: pointer; }
.faq-q b { font-size: 16.5px; color: var(--dark); font-weight: 600; }
.faq-q i { font-style: normal; width: 26px; height: 26px; border-radius: 50%; background: var(--bg-soft); display: grid; place-items: center; color: var(--primary); font-size: 17px; flex: none; transition: .3s; }
.faq-item.open .faq-q i { background: var(--primary); color: #fff; transform: rotate(45deg); }
.faq-a { display: none; padding: 0 24px 22px; font-size: 15px; color: var(--text-light); }
.faq-item.open .faq-a { display: block; }

/* ==========================================================
   页脚
   ========================================================== */
.footer { background: var(--dark); color: #94a3b8; padding: 74px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 46px; padding-bottom: 54px; }
.footer .logo-text b { color: #fff; }
.footer .logo-text span { color: #64748b; }
.footer-about { margin-top: 20px; font-size: 14.5px; line-height: 1.9; max-width: 320px; }
.footer h5 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 20px; }
.footer ul { display: grid; gap: 12px; }
.footer ul a { font-size: 14.5px; color: #94a3b8; }
.footer ul a:hover { color: #fff; padding-left: 5px; }
.footer-contact li { display: flex; gap: 12px; font-size: 14.5px; margin-bottom: 16px; }
.footer-contact svg { width: 17px; height: 17px; color: var(--accent); flex: none; margin-top: 4px; }
.footer-contact strong { color: #fff; display: block; font-size: 17px; }
.qr { display: flex; gap: 14px; margin-top: 6px; }
.qr-box { width: 96px; text-align: center; }
.qr-img {
  width: 96px; height: 96px; border-radius: 10px; background: #fff; padding: 8px;
  display: grid; place-items: center;
}
.qr-img svg { width: 78px; height: 78px; color: var(--dark); }
.qr-img.qr-photo { padding: 0; object-fit: contain; }
.qr-box span { display: block; font-size: 12.5px; margin-top: 8px; color: #94a3b8; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .09); padding: 24px 0; display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; font-size: 13.5px; }
.footer-bottom a:hover { color: #fff; }

/* 友情链接 */
.friend-links { border-top: 1px solid rgba(255, 255, 255, .09); padding: 18px 0 4px; display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; font-size: 13.5px; color: #94a3b8; }
.friend-links .fl-label { color: #cbd5e1; font-weight: 600; }
.friend-links a { color: #cbd5e1; text-decoration: none; transition: color .2s; }
.friend-links a:hover { color: var(--primary); }
.friend-links a + a::before,
.friend-links .fl-label + a::before { content: ""; }

/* 返回顶部 */
.to-top {
  position: fixed; right: 26px; bottom: 30px; z-index: 90;
  width: 46px; height: 46px; border-radius: 50%;
  background: #fff; border: 1px solid var(--border); color: var(--primary);
  display: grid; place-items: center; cursor: pointer;
  box-shadow: var(--shadow); opacity: 0; visibility: hidden; transition: .3s;
}
.to-top.show { opacity: 1; visibility: visible; }
.to-top:hover { background: var(--primary); color: #fff; }
.to-top svg { width: 19px; height: 19px; }

/* 手机端悬浮电话按钮（与返回顶部同尺寸/同右偏移，上下堆叠） */
.call-fab {
  position: fixed; right: 26px; bottom: 84px; z-index: 90;
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--primary); color: #fff;
  display: none; place-items: center; cursor: pointer;
  box-shadow: 0 8px 22px rgba(37, 99, 235, .38);
  text-decoration: none;
}
.call-fab svg { width: 21px; height: 21px; }
.call-fab:hover { background: #1d4ed8; color: #fff; }
.call-fab::after {
  content: ""; position: absolute; inset: 0; border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(37, 99, 235, .5); animation: callPulse 2s infinite;
}
@keyframes callPulse {
  0%   { box-shadow: 0 0 0 0 rgba(37, 99, 235, .45); }
  70%  { box-shadow: 0 0 0 14px rgba(37, 99, 235, 0); }
  100% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0); }
}
/* 仅手机端显示；桌面端保持页面整洁不显示 */
@media (max-width: 768px) {
  .call-fab { display: grid; }
}

/* ==========================================================
   滚动动画
   ========================================================== */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s cubic-bezier(.4, 0, .2, 1), transform .7s cubic-bezier(.4, 0, .2, 1); }
.reveal.in { opacity: 1; transform: none; }

/* ==========================================================
   对比板块（传统台账 vs 思创设备视图）
   ========================================================== */
.compare { display: grid; grid-template-columns: 1fr 66px 1fr; align-items: stretch; }
.compare-col { border-radius: var(--radius-lg); padding: 26px; display: flex; flex-direction: column; }
.compare-old { background: #fff; border: 1px solid var(--border); overflow-x: auto; }
.compare-new { background: linear-gradient(140deg, #eef4ff, #e0f2fe); border: 1px solid #c7ddfb; }
.compare-mid { display: grid; place-items: center; }
.vs {
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--dark); color: #fff; font-weight: 800; font-size: 13px;
  display: grid; place-items: center; letter-spacing: .5px;
  box-shadow: var(--shadow);
}

.compare-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.compare-head b { font-size: 16px; color: var(--dark); }
.tag-old { padding: 3px 11px; border-radius: 20px; background: #f1f5f9; color: #64748b; font-size: 12px; font-weight: 700; }
.tag-new { padding: 3px 11px; border-radius: 20px; background: var(--primary); color: #fff; font-size: 12px; font-weight: 700; }

.tbl { width: 100%; border-collapse: collapse; font-size: 12.5px; margin-top: 16px; }
.tbl th {
  background: #f1f5f9; color: #64748b; font-weight: 600; padding: 8px 9px;
  text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap;
}
.tbl td { padding: 8px 9px; border-bottom: 1px solid var(--border); color: var(--text); white-space: nowrap; }
.tbl tr.hl td { background: #fef9c3; }
.tbl .mono { font-family: ui-monospace, Consolas, "Courier New", monospace; font-size: 11.5px; color: var(--text-light); }
.pill { display: inline-block; padding: 1px 7px; border-radius: 4px; background: #f1f5f9; color: #64748b; font-size: 11px; }
.pill--mail { background: #fef3c7; color: #b45309; }
.pill--auto { background: #dcfce7; color: #047857; }
.tbl-cap { margin-top: 12px; font-size: 12px; color: var(--muted); }

.pains, .wins { margin-top: 20px; display: grid; gap: 10px; }
.pains span, .wins span { display: flex; gap: 9px; align-items: flex-start; font-size: 13.5px; color: var(--text-light); line-height: 1.6; }
.pains .x { color: #ef4444; font-weight: 800; flex: none; font-style: normal; }
.wins .v { color: #10b981; font-weight: 800; flex: none; font-style: normal; }

/* 思创设备视图（右栏） */
.dv-card { background: #fff; border-radius: 14px; border: 1px solid #e2e8f0; padding: 18px; margin-top: 16px; box-shadow: var(--shadow-sm); }
.dv-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; padding-bottom: 14px; border-bottom: 1px solid var(--border); }
.dv-top b { font-size: 15px; color: var(--dark); display: block; }
.dv-top span { font-size: 12px; color: var(--muted); }
.dv-badge { padding: 3px 10px; border-radius: 20px; font-size: 11.5px; font-weight: 700; white-space: nowrap; flex: none; }
.b-online { background: #dcfce7; color: #047857; }
.b-warn { background: #fee2e2; color: #b91c1c; }

.dv-nums { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 16px 0; }
.dv-num { background: var(--bg-soft); border-radius: 10px; padding: 12px 8px; text-align: center; }
.dv-num b { display: block; font-size: 17px; color: var(--dark); font-variant-numeric: tabular-nums; }
.dv-num i { display: block; font-style: normal; font-size: 11.5px; color: #10b981; font-weight: 700; margin-top: 2px; }
.dv-num span { font-size: 11.5px; color: var(--muted); }

.dv-toner { display: grid; gap: 9px; }
.dv-toner-row { display: flex; align-items: center; gap: 10px; font-size: 12px; color: var(--text-light); }
.dv-toner-row .lb { width: 26px; flex: none; }
.dv-toner-row .bar { flex: 1; height: 6px; border-radius: 4px; background: #e2e8f0; overflow: hidden; }
.dv-toner-row .bar i { display: block; height: 100%; border-radius: 4px; }
.dv-toner-row .pv { width: 34px; text-align: right; flex: none; font-variant-numeric: tabular-nums; }

.dv-foot { margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.dv-foot .money { font-size: 19px; font-weight: 800; color: var(--primary); }
.dv-foot .money small { display: block; font-size: 11.5px; font-weight: 500; color: var(--muted); }
.dv-foot .btn { height: 38px; padding: 0 18px; font-size: 13.5px; }
.dv-alert {
  margin-top: 12px; padding: 9px 12px; border-radius: 9px;
  background: #fff7ed; border: 1px solid #fed7aa; font-size: 12.5px; color: #c2410c;
  display: flex; gap: 8px; align-items: flex-start; line-height: 1.6;
}
.dv-alert b { flex: none; }

/* 采集方式四级降级 */
.ladder { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.ladder-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px 22px; position: relative; transition: .3s; }
.ladder-item:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.ladder-item .lv { font-size: 12px; font-weight: 800; color: var(--primary); letter-spacing: 1px; margin-bottom: 10px; }
.ladder-item b { display: block; font-size: 17px; color: var(--dark); margin-bottom: 8px; }
.ladder-item p { font-size: 13.5px; color: var(--text-light); }
.ladder-item .rate { margin-top: 14px; font-size: 12.5px; color: var(--muted); padding-top: 12px; border-top: 1px dashed var(--border); }

/* 已适配品牌 */
.brand-wall { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }
.brand-wall span {
  padding: 13px 28px; background: #fff; border: 1px solid var(--border);
  border-radius: 10px; font-size: 15.5px; font-weight: 600; color: var(--text);
  transition: .28s;
}
.brand-wall span:hover { color: var(--primary); border-color: var(--primary); transform: translateY(-3px); box-shadow: var(--shadow-sm); }

/* ==========================================================
   响应式
   ========================================================== */
@media (max-width: 1080px) {
  .hero h1 { font-size: 44px; }
  .sec-title { font-size: 32px; }
  .stats-box { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: 0; }
  .stat:nth-child(1), .stat:nth-child(2) { border-bottom: 1px solid var(--border); }
  .steps { grid-template-columns: repeat(3, 1fr); gap: 26px; }
  .step::after { display: none; }
  .float-card--a { left: -18px; }
  .float-card--b { right: -14px; }
}

@media (max-width: 900px) {
  .menu, .nav-cta { display: none; }
  .burger { display: block; }
  .hero { padding-top: calc(var(--nav-h) + 56px); }
  .hero-grid, .split, .prod-block, .contact-wrap, .about-intro .split { grid-template-columns: 1fr; }
  .split, .prod-block { gap: 40px; }
  .split--reverse .split-visual, .prod-block--rev .prod-visual { order: 0; }
  .grid-3, .grid-2, .grid-4, .service-guard, .deploy { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .deploy { grid-template-columns: 1fr; }
  .compare { grid-template-columns: 1fr; }
  .compare-mid { padding: 20px 0; }
  .vs { transform: rotate(90deg); }
  .ladder { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 34px; }
  .cta-band { padding: 46px 32px; }
  .cta-band h2 { font-size: 27px; }
  .form-card { padding: 30px 24px; }
  .float-card--a, .float-card--b { display: none; }
}

@media (max-width: 640px) {
  .section { padding: 66px 0; }
  .hero { padding-bottom: 72px; }
  .hero h1 { font-size: 34px; letter-spacing: -.4px; }
  .hero-sub { font-size: 16px; }
  .hero-actions .btn { width: 100%; }
  .sec-title { font-size: 27px; }
  .page-banner h1 { font-size: 30px; }
  .page-banner { padding: calc(var(--nav-h) + 48px) 0 48px; }
  .stat b { font-size: 32px; }
  .grid-4 { grid-template-columns: 1fr; }
  .ladder { grid-template-columns: 1fr; }
  .dv-nums { grid-template-columns: 1fr; }
  .compare-col { padding: 20px 16px; }
  .tbl { font-size: 11.5px; }
  .tbl th, .tbl td { padding: 7px 6px; }
  .prod-features { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .cta-band { text-align: center; }
  .cta-band .btn { width: 100%; }
  .split-visual, .prod-visual { padding: 26px; min-height: auto; }
}