/* ==========================================================================
   合肥批智通科技有限公司 · 企业官网
   全站样式系统
   ========================================================================== */

/* ---------- 1. 设计变量 ---------- */
:root {
  /* 主色 · 深邃商务蓝 */
  --navy-900: #071c33;
  --navy-800: #0b2545;
  --navy-700: #103156;
  --navy-600: #17436f;

  /* 品牌蓝 */
  --brand-700: #0f4c9c;
  --brand-600: #155fc4;
  --brand-500: #1d6fe0;
  --brand-400: #4a90ea;
  --brand-100: #e5effc;
  --brand-50: #f2f7fe;

  /* 辅助点缀色 */
  --teal: #12b3a8;
  --teal-50: #e8f8f7;
  --gold: #d9952f;
  --gold-50: #fdf4e6;

  /* 中性色 */
  --ink: #0b1a2b;
  --text: #33475e;
  --text-soft: #6a7d92;
  --text-mute: #93a3b5;
  --line: #e4eaf2;
  --line-soft: #eef2f7;

  /* 背景 */
  --bg: #ffffff;
  --bg-soft: #f6f9fd;
  --bg-dark: #0b2545;

  /* 尺寸 */
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --shadow-xs: 0 1px 2px rgba(11, 37, 69, .05);
  --shadow-sm: 0 2px 8px rgba(11, 37, 69, .06);
  --shadow: 0 8px 28px rgba(11, 37, 69, .08);
  --shadow-lg: 0 20px 50px rgba(11, 37, 69, .12);
  --shadow-brand: 0 12px 30px rgba(29, 111, 224, .28);

  --maxw: 1200px;
  --header-h: 76px;

  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- 2. 基础重置 ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB",
               "Helvetica Neue", Arial, system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5 {
  margin: 0;
  color: var(--ink);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: -.02em;
}

p { margin: 0; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; border: 0; background: none; }

::selection { background: var(--brand-500); color: #fff; }

/* 滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-soft); }
::-webkit-scrollbar-thumb {
  background: #c3d1e2;
  border-radius: 10px;
  border: 2px solid var(--bg-soft);
}
::-webkit-scrollbar-thumb:hover { background: #a8bcd4; }

/* ---------- 3. 布局工具 ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 28px;
}

.section { padding: 104px 0; }
.section--soft { background: var(--bg-soft); }
.section--tight { padding: 76px 0; }
.section--dark {
  background: var(--bg-dark);
  color: rgba(255, 255, 255, .78);
}
.section--dark h2,
.section--dark h3,
.section--dark h4 { color: #fff; }

.grid { display: grid; gap: 26px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* ---------- 4. 区块标题 ---------- */
.section-head { max-width: 720px; margin-bottom: 58px; }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--brand-600);
  margin-bottom: 16px;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--brand-500);
  border-radius: 2px;
}
.section-head--center .eyebrow::after {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--brand-500);
  border-radius: 2px;
}

.section-title {
  font-size: clamp(27px, 3.2vw, 40px);
  margin-bottom: 18px;
}
.section-desc {
  font-size: 16.5px;
  color: var(--text-soft);
  line-height: 1.85;
}
.section--dark .section-desc { color: rgba(255, 255, 255, .68); }
.section--dark .eyebrow { color: #7cb6f5; }

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 14px 30px;
  font-size: 15.5px;
  font-weight: 600;
  border-radius: 100px;
  white-space: nowrap;
  transition: all .28s var(--ease);
  border: 1.5px solid transparent;
}
.btn svg { width: 17px; height: 17px; flex: none; }

.btn-primary {
  background: linear-gradient(135deg, var(--brand-600), var(--brand-500));
  color: #fff;
  box-shadow: var(--shadow-brand);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 38px rgba(29, 111, 224, .38);
}

.btn-ghost {
  border-color: var(--line);
  color: var(--ink);
  background: #fff;
}
.btn-ghost:hover {
  border-color: var(--brand-400);
  color: var(--brand-600);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.btn-light {
  background: rgba(255, 255, 255, .12);
  border-color: rgba(255, 255, 255, .28);
  color: #fff;
  backdrop-filter: blur(8px);
}
.btn-light:hover {
  background: rgba(255, 255, 255, .2);
  transform: translateY(-2px);
}

.btn-block { width: 100%; }
.btn-lg { padding: 17px 38px; font-size: 16.5px; }

/* ---------- 6. 顶部导航 ---------- */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h);
  z-index: 900;
  background: rgba(255, 255, 255, .82);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: all .3s var(--ease);
}
.header.is-scrolled {
  border-bottom-color: var(--line);
  box-shadow: 0 4px 24px rgba(11, 37, 69, .06);
}
.header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 11px;
  flex: none;
}
.logo__mark { width: 38px; height: 38px; flex: none; }
.logo__text { display: flex; flex-direction: column; line-height: 1.15; }
.logo__name {
  font-size: 17.5px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: .01em;
}
.logo__sub {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .16em;
  color: var(--text-mute);
  text-transform: uppercase;
}

/* 导航 */
.nav { display: flex; align-items: center; gap: 4px; }
.nav__link {
  position: relative;
  padding: 9px 17px;
  font-size: 15.5px;
  font-weight: 500;
  color: var(--text);
  border-radius: 100px;
  transition: color .22s, background .22s;
}
.nav__link:hover { color: var(--brand-600); background: var(--brand-50); }
.nav__link.is-active { color: var(--brand-600); font-weight: 600; }
.nav__link.is-active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 1px;
  transform: translateX(-50%);
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--brand-500);
}

.header__cta { display: flex; align-items: center; gap: 14px; flex: none; }
.header__phone {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink);
}
.header__phone svg { width: 16px; height: 16px; color: var(--brand-500); }

/* 汉堡按钮 */
.burger {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  background: #fff;
}
.burger span {
  position: relative;
  display: block;
  width: 18px;
  height: 1.8px;
  border-radius: 2px;
  background: var(--ink);
  transition: all .28s var(--ease);
}
.burger span::before,
.burger span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 1.8px;
  border-radius: 2px;
  background: var(--ink);
  transition: all .28s var(--ease);
}
.burger span::before { top: -6px; }
.burger span::after { top: 6px; }
.burger.is-open span { background: transparent; }
.burger.is-open span::before { top: 0; transform: rotate(45deg); }
.burger.is-open span::after { top: 0; transform: rotate(-45deg); }

/* 移动端抽屉 */
.mobile-menu {
  position: fixed;
  inset: var(--header-h) 0 auto 0;
  z-index: 890;
  background: #fff;
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow-lg);
  padding: 14px 24px 26px;
  transform: translateY(-14px);
  opacity: 0;
  visibility: hidden;
  transition: all .3s var(--ease);
}
.mobile-menu.is-open { transform: none; opacity: 1; visibility: visible; }
.mobile-menu a {
  display: block;
  padding: 14px 4px;
  font-size: 16.5px;
  font-weight: 500;
  color: var(--ink);
  border-bottom: 1px solid var(--line-soft);
}
.mobile-menu a:last-of-type { border-bottom: 0; }
.mobile-menu .btn { margin-top: 16px; }

/* ---------- 7. 首页 Hero ---------- */
.hero {
  position: relative;
  padding: calc(var(--header-h) + 84px) 0 96px;
  overflow: hidden;
  background:
    radial-gradient(900px 460px at 82% -8%, rgba(29, 111, 224, .13), transparent 62%),
    radial-gradient(700px 420px at 4% 12%, rgba(18, 179, 168, .09), transparent 60%),
    linear-gradient(180deg, #fbfdff 0%, #f4f8fd 100%);
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(11, 37, 69, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 37, 69, .035) 1px, transparent 1px);
  background-size: 62px 62px;
  mask-image: radial-gradient(ellipse 78% 62% at 50% 34%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 78% 62% at 50% 34%, #000 20%, transparent 78%);
  pointer-events: none;
}
.hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.06fr .94fr;
  gap: 62px;
  align-items: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 16px 7px 9px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 100px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text);
  box-shadow: var(--shadow-xs);
  margin-bottom: 26px;
}
.hero__badge b {
  padding: 3px 10px;
  border-radius: 100px;
  background: var(--brand-50);
  color: var(--brand-600);
  font-size: 12.5px;
  font-weight: 600;
}

.hero__title {
  font-size: clamp(34px, 4.6vw, 56px);
  line-height: 1.18;
  letter-spacing: -.03em;
  margin-bottom: 24px;
}
.hero__title em {
  font-style: normal;
  background: linear-gradient(120deg, var(--brand-600) 10%, var(--teal) 92%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero__desc {
  font-size: 17.5px;
  line-height: 1.9;
  color: var(--text-soft);
  max-width: 540px;
  margin-bottom: 36px;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 44px; }

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}
.hero__stat-num {
  font-size: 30px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -.02em;
  line-height: 1.2;
}
.hero__stat-num span { color: var(--brand-500); }
.hero__stat-label {
  font-size: 13.5px;
  color: var(--text-mute);
  margin-top: 3px;
}

/* Hero 视觉卡片 */
.hero__visual { position: relative; }
.hero-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: 26px;
  z-index: 2;
}
.hero-card__head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 18px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--line-soft);
}
.hero-card__dots { display: flex; gap: 6px; }
.hero-card__dots i {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--line);
}
.hero-card__dots i:nth-child(1) { background: #ff5f57; }
.hero-card__dots i:nth-child(2) { background: #febc2e; }
.hero-card__dots i:nth-child(3) { background: #28c840; }
.hero-card__title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-mute);
  margin-left: 4px;
}

.hero-metric {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 20px;
}
.hero-metric__label { font-size: 13px; color: var(--text-mute); margin-bottom: 4px; }
.hero-metric__value {
  font-size: 27px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.1;
}
.hero-metric__delta {
  font-size: 12.5px;
  font-weight: 600;
  color: #0f9d6b;
  background: #e9f9f2;
  padding: 4px 10px;
  border-radius: 100px;
}

.hero-bars {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  height: 108px;
  padding-top: 8px;
}
.hero-bars i {
  flex: 1;
  border-radius: 6px 6px 3px 3px;
  background: linear-gradient(180deg, var(--brand-400), var(--brand-600));
  opacity: .92;
  animation: barGrow 1.1s var(--ease) backwards;
}
.hero-bars i:nth-child(even) { background: linear-gradient(180deg, #7fd6d0, var(--teal)); }
.hero-bars i:nth-child(1) { height: 42%; animation-delay: .05s; }
.hero-bars i:nth-child(2) { height: 66%; animation-delay: .12s; }
.hero-bars i:nth-child(3) { height: 52%; animation-delay: .19s; }
.hero-bars i:nth-child(4) { height: 82%; animation-delay: .26s; }
.hero-bars i:nth-child(5) { height: 62%; animation-delay: .33s; }
.hero-bars i:nth-child(6) { height: 94%; animation-delay: .40s; }
.hero-bars i:nth-child(7) { height: 74%; animation-delay: .47s; }

@keyframes barGrow { from { height: 0 !important; opacity: 0; } }

.hero-float {
  position: absolute;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 13px 17px;
  display: flex;
  align-items: center;
  gap: 11px;
  z-index: 3;
}
.hero-float__icon {
  width: 36px; height: 36px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  flex: none;
}
.hero-float__icon svg { width: 19px; height: 19px; }
.hero-float__t { font-size: 13.5px; font-weight: 600; color: var(--ink); line-height: 1.35; }
.hero-float__s { font-size: 12px; color: var(--text-mute); line-height: 1.35; }

.hero-float--1 { top: -22px; right: -18px; animation: floatY 5s ease-in-out infinite; }
.hero-float--2 { bottom: -26px; left: -26px; animation: floatY 5.6s ease-in-out infinite .6s; }

@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-11px); }
}

/* ---------- 8. 卡片 ---------- */
.card {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all .32s var(--ease);
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand-500), var(--teal));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .38s var(--ease);
}
.card:hover {
  transform: translateY(-6px);
  border-color: #cfe0f5;
  box-shadow: var(--shadow-lg);
}
.card:hover::before { transform: scaleX(1); }

.card__icon {
  width: 52px;
  height: 52px;
  border-radius: 15px;
  display: grid;
  place-items: center;
  margin-bottom: 22px;
  background: var(--brand-50);
  color: var(--brand-600);
  transition: all .32s var(--ease);
}
.card__icon svg { width: 25px; height: 25px; }
.card:hover .card__icon {
  background: linear-gradient(135deg, var(--brand-600), var(--brand-500));
  color: #fff;
  transform: scale(1.05) rotate(-4deg);
  box-shadow: var(--shadow-brand);
}
.card__icon--teal { background: var(--teal-50); color: #0d8b83; }
.card:hover .card__icon--teal {
  background: linear-gradient(135deg, #0f9b92, var(--teal));
  box-shadow: 0 12px 30px rgba(18, 179, 168, .28);
}
.card__icon--gold { background: var(--gold-50); color: var(--gold); }
.card:hover .card__icon--gold {
  background: linear-gradient(135deg, #e0a03c, var(--gold));
  box-shadow: 0 12px 30px rgba(217, 149, 47, .28);
}

.card__title {
  font-size: 19px;
  margin-bottom: 11px;
}
.card__text {
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-soft);
}
.card__list { margin-top: 18px; display: grid; gap: 9px; }
.card__list li {
  position: relative;
  padding-left: 22px;
  font-size: 14.5px;
  color: var(--text-soft);
}
.card__list li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand-400);
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--brand-600);
}
.card__link svg { width: 15px; height: 15px; transition: transform .28s var(--ease); }
.card__link:hover svg { transform: translateX(4px); }

/* ---------- 9. 优势 / 特性列表 ---------- */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.feature-list { display: grid; gap: 30px; }
.feature-item { display: flex; gap: 18px; }
.feature-item__num {
  flex: none;
  width: 44px;
  height: 44px;
  border-radius: 13px;
  display: grid;
  place-items: center;
  background: #fff;
  border: 1px solid var(--line);
  font-size: 15px;
  font-weight: 700;
  color: var(--brand-600);
  box-shadow: var(--shadow-xs);
}
.feature-item__title { font-size: 17px; margin-bottom: 7px; }
.feature-item__text { font-size: 15px; color: var(--text-soft); line-height: 1.8; }

/* 能力条 */
.skill-panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  padding: 36px 34px;
  box-shadow: var(--shadow);
}
.skill-item { margin-bottom: 24px; }
.skill-item:last-child { margin-bottom: 0; }
.skill-item__top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 10px;
}
.skill-item__name { font-size: 15px; font-weight: 600; color: var(--ink); }
.skill-item__pct { font-size: 14px; font-weight: 600; color: var(--brand-600); }
.skill-bar {
  height: 7px;
  border-radius: 100px;
  background: var(--line-soft);
  overflow: hidden;
}
.skill-bar i {
  display: block;
  height: 100%;
  border-radius: 100px;
  background: linear-gradient(90deg, var(--brand-600), var(--brand-400));
  width: 0;
  transition: width 1.4s var(--ease);
}
.skill-bar i.teal { background: linear-gradient(90deg, #0f9b92, #4fd0c8); }

/* ---------- 10. 数据统计 ---------- */
.stats-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.stat-cell {
  background: #fff;
  padding: 38px 26px;
  text-align: center;
  transition: background .3s;
}
.stat-cell:hover { background: var(--brand-50); }
.stat-cell__num {
  font-size: 38px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -.03em;
  line-height: 1.15;
}
.stat-cell__num span { color: var(--brand-500); font-size: 24px; }
.stat-cell__label {
  font-size: 14px;
  color: var(--text-mute);
  margin-top: 6px;
}

/* ---------- 11. 流程步骤 ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
  position: relative;
}
.steps::before {
  content: "";
  position: absolute;
  top: 26px;
  left: 12%;
  right: 12%;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--line) 0 7px, transparent 7px 14px);
  z-index: 0;
}
.step { position: relative; z-index: 1; }
.step__num {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #fff;
  border: 1.5px solid var(--line);
  font-size: 16px;
  font-weight: 700;
  color: var(--brand-600);
  margin-bottom: 20px;
  transition: all .3s var(--ease);
}
.step:hover .step__num {
  background: var(--brand-600);
  border-color: var(--brand-600);
  color: #fff;
  box-shadow: var(--shadow-brand);
  transform: scale(1.06);
}
.step__title { font-size: 17px; margin-bottom: 9px; }
.step__text { font-size: 14.5px; color: var(--text-soft); line-height: 1.8; }

/* ---------- 12. 行业 / 标签 ---------- */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 12px; }
.tag {
  padding: 10px 20px;
  border-radius: 100px;
  background: #fff;
  border: 1px solid var(--line);
  font-size: 14.5px;
  font-weight: 500;
  color: var(--text);
  transition: all .26s var(--ease);
}
.tag:hover {
  border-color: var(--brand-400);
  color: var(--brand-600);
  background: var(--brand-50);
  transform: translateY(-2px);
}

/* ---------- 13. CTA 区块 ---------- */
.cta-band {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(760px 400px at 88% 8%, rgba(29, 111, 224, .34), transparent 62%),
    radial-gradient(560px 320px at 6% 92%, rgba(18, 179, 168, .22), transparent 60%),
    linear-gradient(135deg, var(--navy-900), var(--navy-700));
  border-radius: var(--radius-xl);
  padding: 62px 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  color: rgba(255, 255, 255, .76);
}
.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: radial-gradient(ellipse 70% 80% at 70% 50%, #000, transparent 76%);
  -webkit-mask-image: radial-gradient(ellipse 70% 80% at 70% 50%, #000, transparent 76%);
}
.cta-band__content { position: relative; z-index: 2; max-width: 620px; }
.cta-band__title {
  font-size: clamp(24px, 2.8vw, 33px);
  color: #fff;
  margin-bottom: 14px;
}
.cta-band__text { font-size: 16px; line-height: 1.8; }
.cta-band__actions {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* ---------- 14. 页面横幅 ---------- */
.page-hero {
  position: relative;
  padding: calc(var(--header-h) + 72px) 0 72px;
  background:
    radial-gradient(820px 400px at 78% -12%, rgba(29, 111, 224, .15), transparent 62%),
    linear-gradient(180deg, #fbfdff, #f4f8fd);
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(11, 37, 69, .03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 37, 69, .03) 1px, transparent 1px);
  background-size: 58px 58px;
  mask-image: radial-gradient(ellipse 70% 80% at 60% 40%, #000 10%, transparent 74%);
  -webkit-mask-image: radial-gradient(ellipse 70% 80% at 60% 40%, #000 10%, transparent 74%);
  pointer-events: none;
}
.page-hero__inner { position: relative; z-index: 2; max-width: 760px; }
.page-hero__title {
  font-size: clamp(30px, 3.8vw, 46px);
  letter-spacing: -.03em;
  margin-bottom: 18px;
}
.page-hero__desc {
  font-size: 17px;
  line-height: 1.88;
  color: var(--text-soft);
  max-width: 640px;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 13.5px;
  color: var(--text-mute);
  margin-bottom: 22px;
}
.breadcrumb a { color: var(--text-soft); transition: color .2s; }
.breadcrumb a:hover { color: var(--brand-600); }
.breadcrumb svg { width: 13px; height: 13px; opacity: .6; }
.breadcrumb__current { color: var(--brand-600); font-weight: 500; }

/* ---------- 15. 关于我们 ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  gap: 64px;
  align-items: center;
}
.about-copy p {
  font-size: 16px;
  line-height: 1.95;
  color: var(--text-soft);
  margin-bottom: 18px;
}
.about-copy p:last-child { margin-bottom: 0; }
.about-copy strong { color: var(--ink); font-weight: 600; }

.about-visual {
  position: relative;
  display: grid;
  gap: 18px;
}
.about-panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 26px;
  box-shadow: var(--shadow-sm);
}
.about-panel__k {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--brand-600);
  margin-bottom: 10px;
}
.about-panel__v {
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--text);
}
.about-panel--brand {
  background: linear-gradient(135deg, var(--navy-800), var(--navy-600));
  border-color: transparent;
  color: rgba(255, 255, 255, .8);
}
.about-panel--brand .about-panel__k { color: #7cb6f5; }
.about-panel--brand .about-panel__v { color: #fff; }

/* 时间轴 */
.timeline { position: relative; padding-left: 34px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--brand-500), var(--teal));
  border-radius: 2px;
  opacity: .35;
}
.timeline__item { position: relative; padding-bottom: 34px; }
.timeline__item:last-child { padding-bottom: 0; }
.timeline__item::before {
  content: "";
  position: absolute;
  left: -33px;
  top: 7px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #fff;
  border: 2.5px solid var(--brand-500);
  box-shadow: 0 0 0 4px rgba(29, 111, 224, .1);
}
.timeline__year {
  font-size: 14px;
  font-weight: 700;
  color: var(--brand-600);
  letter-spacing: .04em;
  margin-bottom: 5px;
}
.timeline__title { font-size: 17px; margin-bottom: 7px; }
.timeline__text { font-size: 14.5px; color: var(--text-soft); line-height: 1.8; }

/* 价值观卡 */
.value-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  transition: all .3s var(--ease);
  height: 100%;
}
.value-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
  border-color: #cfe0f5;
}
.value-card__mark {
  font-size: 13px;
  font-weight: 700;
  color: var(--brand-500);
  letter-spacing: .16em;
  margin-bottom: 14px;
}
.value-card__title { font-size: 18px; margin-bottom: 10px; }
.value-card__text { font-size: 14.5px; line-height: 1.85; color: var(--text-soft); }

/* ---------- 16. 产品服务 ---------- */
.service-block {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 56px;
  align-items: center;
  padding: 56px 0;
  border-bottom: 1px solid var(--line-soft);
}
.service-block:last-child { border-bottom: 0; padding-bottom: 0; }
.service-block:first-child { padding-top: 0; }
.service-block--reverse .service-block__media { order: -1; }

.service-block__tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 15px;
  border-radius: 100px;
  background: var(--brand-50);
  color: var(--brand-600);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 18px;
}
.service-block__title {
  font-size: clamp(23px, 2.5vw, 30px);
  margin-bottom: 16px;
}
.service-block__text {
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--text-soft);
  margin-bottom: 24px;
}

.service-list { display: grid; gap: 14px; }
.service-list__item {
  display: flex;
  gap: 14px;
  padding: 16px 18px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: all .28s var(--ease);
}
.service-list__item:hover {
  border-color: #cfe0f5;
  box-shadow: var(--shadow-sm);
  transform: translateX(5px);
}
.service-list__icon {
  flex: none;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: var(--brand-50);
  color: var(--brand-600);
}
.service-list__icon svg { width: 17px; height: 17px; }
.service-list__title { font-size: 15.5px; font-weight: 600; color: var(--ink); margin-bottom: 4px; }
.service-list__text { font-size: 14px; color: var(--text-soft); line-height: 1.75; }

/* 服务视觉块 */
.service-visual {
  position: relative;
  border-radius: var(--radius-xl);
  padding: 34px;
  background: linear-gradient(150deg, #f2f7fe, #e8f3ff);
  border: 1px solid #dbe9fa;
  overflow: hidden;
}
.service-visual::before {
  content: "";
  position: absolute;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  right: -80px;
  top: -90px;
  background: radial-gradient(circle, rgba(29, 111, 224, .16), transparent 70%);
}
.service-visual--teal {
  background: linear-gradient(150deg, #eafaf8, #dcf5f2);
  border-color: #cdeeea;
}
.service-visual--teal::before {
  background: radial-gradient(circle, rgba(18, 179, 168, .18), transparent 70%);
}
.service-visual__inner { position: relative; z-index: 2; }
.service-visual__label {
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--brand-600);
  margin-bottom: 18px;
}
.service-visual--teal .service-visual__label { color: #0d8b83; }

.mini-stat {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 16px;
}
.mini-stat__cell {
  background: rgba(255, 255, 255, .78);
  border-radius: var(--radius);
  padding: 18px;
  backdrop-filter: blur(6px);
}
.mini-stat__num {
  font-size: 24px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.2;
}
.mini-stat__label { font-size: 13px; color: var(--text-mute); margin-top: 3px; }

/* 技术标签 */
.tech-stack { display: flex; flex-wrap: wrap; gap: 10px; }
.tech-stack span {
  padding: 8px 16px;
  border-radius: 100px;
  background: rgba(255, 255, 255, .8);
  border: 1px solid rgba(255, 255, 255, .9);
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text);
  box-shadow: var(--shadow-xs);
}

/* 价格/套餐 */
.plan {
  position: relative;
  background: #fff;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 34px 30px;
  display: flex;
  flex-direction: column;
  transition: all .32s var(--ease);
}
.plan:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: #cfe0f5;
}
.plan--featured {
  border-color: var(--brand-500);
  box-shadow: 0 18px 44px rgba(29, 111, 224, .16);
}
.plan__flag {
  position: absolute;
  top: -13px;
  right: 26px;
  padding: 5px 15px;
  border-radius: 100px;
  background: linear-gradient(135deg, var(--brand-600), var(--brand-500));
  color: #fff;
  font-size: 12.5px;
  font-weight: 600;
  box-shadow: var(--shadow-brand);
}
.plan__name { font-size: 20px; margin-bottom: 8px; }
.plan__desc { font-size: 14.5px; color: var(--text-soft); line-height: 1.8; margin-bottom: 22px; }
.plan__price {
  padding: 20px 0;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: 24px;
}
.plan__price b {
  font-size: 30px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -.02em;
}
.plan__price small { font-size: 13.5px; color: var(--text-mute); display: block; margin-top: 4px; }
.plan__list { display: grid; gap: 12px; margin-bottom: 28px; flex: 1; }
.plan__list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 14.5px;
  color: var(--text-soft);
}
.plan__list svg {
  width: 17px;
  height: 17px;
  flex: none;
  margin-top: 4px;
  color: var(--brand-500);
}

/* ---------- 17. 联系我们 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 56px;
  align-items: start;
}

.contact-item {
  display: flex;
  gap: 16px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line-soft);
}
.contact-item:last-child { border-bottom: 0; }
.contact-item__icon {
  flex: none;
  width: 46px;
  height: 46px;
  border-radius: 13px;
  display: grid;
  place-items: center;
  background: var(--brand-50);
  color: var(--brand-600);
}
.contact-item__icon svg { width: 21px; height: 21px; }
.contact-item__label {
  font-size: 13px;
  color: var(--text-mute);
  margin-bottom: 5px;
  letter-spacing: .04em;
}
.contact-item__value {
  font-size: 16.5px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.6;
  word-break: break-all;
}
.contact-item__value a:hover { color: var(--brand-600); }
.contact-item__note { font-size: 13.5px; color: var(--text-soft); margin-top: 5px; font-weight: 400; }

/* 表单 */
.form-panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  padding: 40px 38px;
  box-shadow: var(--shadow);
}
.form-panel__title { font-size: 23px; margin-bottom: 9px; }
.form-panel__desc { font-size: 14.5px; color: var(--text-soft); margin-bottom: 28px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.form-group { margin-bottom: 18px; }
.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 8px;
}
.form-label .req { color: #e5484d; margin-left: 3px; }

.form-control {
  width: 100%;
  padding: 13px 16px;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
  font-size: 15px;
  transition: all .24s var(--ease);
  outline: none;
}
.form-control::placeholder { color: var(--text-mute); }
.form-control:hover { border-color: #cfdcea; }
.form-control:focus {
  border-color: var(--brand-500);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(29, 111, 224, .1);
}
textarea.form-control { resize: vertical; min-height: 122px; line-height: 1.7; }
select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236a7d92' stroke-width='2.5' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 15px center;
  background-size: 17px;
  padding-right: 44px;
  cursor: pointer;
}

.form-consent {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 13.5px;
  color: var(--text-soft);
  margin-bottom: 22px;
  line-height: 1.65;
}
.form-consent input {
  width: 17px;
  height: 17px;
  margin-top: 3px;
  flex: none;
  accent-color: var(--brand-600);
  cursor: pointer;
}

.form-note {
  font-size: 13px;
  color: var(--text-mute);
  margin-top: 14px;
  text-align: center;
}
.form-alert {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  background: #e9f9f2;
  border: 1px solid #b9ead6;
  color: #0b7a55;
  font-size: 14.5px;
  font-weight: 500;
  margin-bottom: 22px;
}
.form-alert.is-visible { display: flex; }
.form-alert svg { width: 19px; height: 19px; flex: none; }

/* 地图占位 */
.map-card {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--line);
  background: linear-gradient(150deg, #eef4fb, #e2edf9);
  height: 300px;
  display: grid;
  place-items: center;
}
.map-card__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(11, 37, 69, .06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 37, 69, .06) 1px, transparent 1px);
  background-size: 40px 40px;
}
.map-card__pin {
  position: relative;
  z-index: 2;
  text-align: center;
}
.map-card__pin-dot {
  width: 58px;
  height: 58px;
  margin: 0 auto 16px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #fff;
  color: var(--brand-600);
  box-shadow: var(--shadow-lg);
  animation: pulseRing 2.4s ease-out infinite;
}
.map-card__pin-dot svg { width: 26px; height: 26px; }
@keyframes pulseRing {
  0% { box-shadow: 0 0 0 0 rgba(29, 111, 224, .3), var(--shadow-lg); }
  70% { box-shadow: 0 0 0 22px rgba(29, 111, 224, 0), var(--shadow-lg); }
  100% { box-shadow: 0 0 0 0 rgba(29, 111, 224, 0), var(--shadow-lg); }
}
.map-card__title { font-size: 17px; font-weight: 600; color: var(--ink); margin-bottom: 5px; }
.map-card__addr { font-size: 14px; color: var(--text-soft); }

/* 常见问题 */
.faq { display: grid; gap: 12px; }
.faq__item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all .28s var(--ease);
}
.faq__item.is-open {
  border-color: #cfe0f5;
  box-shadow: var(--shadow-sm);
}
.faq__q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 20px 24px;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  transition: color .22s;
}
.faq__q:hover { color: var(--brand-600); }
.faq__q i {
  flex: none;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--brand-50);
  color: var(--brand-600);
  transition: all .3s var(--ease);
}
.faq__q svg { width: 15px; height: 15px; }
.faq__item.is-open .faq__q i {
  background: var(--brand-600);
  color: #fff;
  transform: rotate(45deg);
}
.faq__a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .36s var(--ease);
}
.faq__a-inner {
  padding: 0 24px 22px;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--text-soft);
}

/* ---------- 18. 页脚 ---------- */
.footer {
  background: var(--navy-900);
  color: rgba(255, 255, 255, .58);
  padding: 72px 0 0;
  font-size: 14.5px;
}
.footer__top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 44px;
  padding-bottom: 52px;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}
.footer .logo__name { color: #fff; }
.footer .logo__sub { color: rgba(255, 255, 255, .42); }
.footer__about {
  margin-top: 20px;
  line-height: 1.9;
  color: rgba(255, 255, 255, .52);
  max-width: 330px;
  font-size: 14px;
}
.footer__title {
  color: #fff;
  font-size: 15.5px;
  font-weight: 600;
  margin-bottom: 20px;
}
.footer__links { display: grid; gap: 12px; }
.footer__links a {
  color: rgba(255, 255, 255, .58);
  font-size: 14px;
  transition: color .22s, transform .22s;
  display: inline-block;
}
.footer__links a:hover { color: #fff; transform: translateX(4px); }

.footer__contact { display: grid; gap: 16px; }
.footer__contact-item { display: flex; gap: 11px; font-size: 14px; line-height: 1.7; }
.footer__contact-item svg {
  width: 17px;
  height: 17px;
  flex: none;
  margin-top: 3px;
  color: var(--brand-400);
}
.footer__contact-item a:hover { color: #fff; }

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding: 24px 0 30px;
  font-size: 13.5px;
  color: rgba(255, 255, 255, .42);
}
.footer__legal { display: flex; gap: 20px; flex-wrap: wrap; }
.footer__legal a:hover { color: #fff; }

/* ---------- 19. 返回顶部 ---------- */
.to-top {
  position: fixed;
  right: 26px;
  bottom: 26px;
  z-index: 800;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--brand-600);
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(14px);
  transition: all .3s var(--ease);
}
.to-top.is-visible { opacity: 1; visibility: visible; transform: none; }
.to-top:hover {
  background: var(--brand-600);
  border-color: var(--brand-600);
  color: #fff;
  box-shadow: var(--shadow-brand);
}
.to-top svg { width: 19px; height: 19px; }

/* ---------- 20. 滚动动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .72s var(--ease), transform .72s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: none; }

/* ---------- 21. 响应式 ---------- */
@media (max-width: 1080px) {
  .hero__inner { grid-template-columns: 1fr; gap: 56px; }
  .hero__desc { max-width: 100%; }
  .hero__visual { max-width: 520px; }
  .hero-float--1 { right: 0; }
  .hero-float--2 { left: 0; }
  .about-grid { grid-template-columns: 1fr; gap: 46px; }
  .feature-row { grid-template-columns: 1fr; gap: 44px; }
  .service-block { grid-template-columns: 1fr; gap: 34px; }
  .service-block--reverse .service-block__media { order: 0; }
  .contact-grid { grid-template-columns: 1fr; gap: 44px; }
  .footer__top { grid-template-columns: 1fr 1fr; gap: 38px; }
  .stats-band { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .steps::before { display: none; }
}

@media (max-width: 860px) {
  .nav, .header__phone { display: none; }
  .burger { display: flex; }
  .section { padding: 76px 0; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .cta-band { padding: 46px 32px; }
}

@media (max-width: 620px) {
  .container { padding: 0 20px; }
  :root { --header-h: 68px; }
  .hero { padding-top: calc(var(--header-h) + 52px); padding-bottom: 68px; }
  .hero__stats { gap: 26px 34px; }
  .hero__stat-num { font-size: 25px; }
  .hero-float { display: none; }
  .grid-4 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .stats-band { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .form-panel { padding: 30px 22px; }
  .cta-band { padding: 38px 24px; border-radius: var(--radius-lg); }
  .cta-band__actions { width: 100%; }
  .cta-band__actions .btn { flex: 1; }
  .footer__top { grid-template-columns: 1fr; gap: 34px; }
  .footer__bottom { flex-direction: column; align-items: flex-start; gap: 12px; }
  .card { padding: 26px 22px; }
  .section-head { margin-bottom: 40px; }
  .mini-stat { grid-template-columns: 1fr; }
  .hero-card { padding: 20px; }
  .to-top { right: 16px; bottom: 16px; }
}

/* ---------- 22. 打印 ---------- */
@media print {
  .header, .footer, .to-top, .mobile-menu { display: none !important; }
  .reveal { opacity: 1; transform: none; }
  body { font-size: 12pt; }
}