/* ============================================================
   微开软件 WinkSoft 企业官网 · 全站样式
   纯 CSS3，无任何外部依赖
   ============================================================ */

/* ---------- 设计变量 ---------- */
:root {
  /* 主色：科技蓝 */
  --primary: #1E5EFF;
  --primary-light: #5B86FF;
  --deep-blue: #0B1E3F;

  /* 辅助色 */
  --success: #15803D;

  /* 中性色 */
  --text-main: #1B2437;
  --text-sub: #5A6478;
  --text-light: #6B7488;
  --bg-page: #F6F8FC;
  --bg-white: #FFFFFF;
  --line: #E5EAF3;

  /* 渐变 */
  --grad-hero: linear-gradient(135deg, #0B1E3F 0%, #14336B 45%, #1E5EFF 100%);
  --grad-card: linear-gradient(160deg, #FFFFFF 0%, #F2F6FF 100%);
  --grad-btn: linear-gradient(135deg, #1E5EFF 0%, #3B76FF 100%);
  --grad-band: linear-gradient(120deg, #0B1E3F 0%, #1449C7 100%);
  --grad-icon: linear-gradient(135deg, #1E5EFF 0%, #22D3EE 100%);

  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(11, 30, 63, 0.06);
  --shadow-md: 0 8px 24px rgba(11, 30, 63, 0.10);
  --shadow-lg: 0 16px 48px rgba(11, 30, 63, 0.14);
  --shadow-primary: 0 8px 24px rgba(30, 94, 255, 0.28);

  /* 圆角 */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-full: 999px;

  /* 字体：优先免费商用字体，不含任何商业字库文件（纯系统字体引用，无授权风险）
     · 开源/OFL：思源黑体 Source Han Sans SC、Noto Sans SC、MiSans
     · 厂商免费商用：HarmonyOS Sans（华为）、阿里巴巴普惠体 3.0
     · 系统自带兜底：PingFang SC（macOS/iOS）、微软雅黑（Windows）、system-ui
     如需全平台统一视觉，可为思源黑体做子集化 @font-face（约 150KB），启用前请确认授权文件随附。 */
  --font-family: "Source Han Sans SC", "Noto Sans SC", "HarmonyOS Sans SC",
    "HarmonyOS Sans", "Alibaba PuHuiTi 3", "Alibaba PuHuiTi", "MiSans",
    "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;

  /* 布局 */
  --container: 1180px;
  --header-h: 72px;
}

/* ---------- 基础重置 ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-family);
  color: var(--text-main);
  background: var(--bg-page);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; transition: color .25s ease; }

ul, ol { list-style: none; }

button { font-family: inherit; cursor: pointer; border: none; background: none; }

::selection { background: rgba(30, 94, 255, .18); }

/* 仅屏幕阅读器可见（保持标题层级语义完整） */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- 通用容器 / 排版 ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 96px 0; }
.section-tint { background: var(--bg-white); }

.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }

.section-kicker {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--primary);
  background: rgba(30, 94, 255, .08);
  border: 1px solid rgba(30, 94, 255, .18);
  padding: 4px 16px;
  border-radius: var(--radius-full);
  margin-bottom: 18px;
}

.section-title {
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--text-main);
}

.section-title .accent { color: var(--primary); }

.section-sub {
  margin-top: 14px;
  font-size: 16px;
  color: var(--text-sub);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-full);
  font-size: 16px;
  font-weight: 600;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--grad-btn);
  color: #fff;
  box-shadow: var(--shadow-primary);
}

.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 14px 32px rgba(30, 94, 255, .38); }

.btn-ghost {
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, .55);
  background: rgba(255, 255, 255, .06);
  backdrop-filter: blur(6px);
}

.btn-ghost:hover { background: rgba(255, 255, 255, .14); border-color: #fff; transform: translateY(-3px); }

.btn-outline {
  color: var(--primary);
  border: 1.5px solid rgba(30, 94, 255, .5);
  background: #fff;
}

.btn-outline:hover { background: rgba(30, 94, 255, .06); transform: translateY(-3px); }

.btn-sm { padding: 10px 24px; font-size: 14px; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, .82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .3s ease, border-color .3s ease;
}

.site-header.scrolled {
  border-bottom-color: var(--line);
  box-shadow: 0 4px 20px rgba(11, 30, 63, .08);
}

.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 21px;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--deep-blue);
  flex-shrink: 0;
}

.logo .logo-mark { width: 36px; height: 36px; }

.logo small {
  display: block;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 2px;
  color: var(--text-light);
  line-height: 1.2;
}

/* 导航链接 */
.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* 注意：排除 .nav-cta（按钮），否则灰色文字规则会覆盖 .btn-primary 的白字 */
.nav-links a:not(.nav-cta) {
  position: relative;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-sub);
  border-radius: var(--radius-sm);
}

.nav-links a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 2px;
  width: 0;
  height: 3px;
  border-radius: 2px;
  background: var(--grad-icon);
  transform: translateX(-50%);
  transition: width .3s ease;
}

.nav-links a:not(.nav-cta):hover { color: var(--primary); }

.nav-links a:not(.nav-cta).active { color: var(--primary); font-weight: 700; }

.nav-links a:not(.nav-cta).active::after { width: 22px; }

.nav-cta { margin-left: 12px; }

/* 汉堡菜单 */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  padding: 8px;
  border-radius: var(--radius-sm);
}

.hamburger span {
  display: block;
  height: 2.5px;
  width: 100%;
  background: var(--deep-blue);
  border-radius: 2px;
  transition: transform .3s ease, opacity .3s ease;
}

.hamburger.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ---------- Hero（首页） ---------- */
.hero {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  background: var(--grad-hero);
  color: #fff;
  overflow: hidden;
  padding: 110px 0 130px;
}

/* 几何装饰 */
.hero-deco { position: absolute; inset: 0; pointer-events: none; }

.hero-deco .circle {
  position: absolute;
  border-radius: 50%;
  filter: blur(2px);
  opacity: .5;
  background: radial-gradient(circle at 30% 30%, rgba(91, 134, 255, .55), rgba(34, 211, 238, .12));
}

.hero-deco .c1 { width: 420px; height: 420px; top: -140px; right: -80px; }
.hero-deco .c2 { width: 260px; height: 260px; bottom: -60px; left: -60px; opacity: .35; }
.hero-deco .c3 { width: 120px; height: 120px; top: 22%; left: 12%; opacity: .3; }

.hero-deco .grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at 50% 40%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 40%, #000 20%, transparent 75%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  align-items: center;
  gap: 48px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: 1px;
  color: #CFE0FF;
  background: rgba(255, 255, 255, .10);
  border: 1px solid rgba(255, 255, 255, .22);
  padding: 6px 18px;
  border-radius: var(--radius-full);
  margin-bottom: 26px;
  backdrop-filter: blur(6px);
}

.hero-title {
  font-size: clamp(32px, 5vw, 54px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: 1px;
}

.hero-title .gradient-text {
  background: linear-gradient(90deg, #6EA0FF 0%, #22D3EE 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.hero-sub {
  margin-top: 22px;
  max-width: 560px;
  font-size: 17px;
  line-height: 1.9;
  color: rgba(255, 255, 255, .78);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 40px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 44px;
}

.hero-tags span {
  font-size: 13px;
  color: rgba(255, 255, 255, .85);
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .16);
  padding: 5px 14px;
  border-radius: var(--radius-full);
}

/* Hero 右侧视觉：抽象产品卡片 */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.glass-card {
  width: 100%;
  max-width: 400px;
  background: rgba(255, 255, 255, .09);
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: var(--radius-lg);
  padding: 28px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-lg);
}

.glass-card .gc-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
}

.glass-card .gc-dot { width: 44px; height: 44px; border-radius: 12px; background: var(--grad-icon); display: flex; align-items: center; justify-content: center; }
.glass-card .gc-title { font-size: 16px; font-weight: 700; }
.glass-card .gc-title small { display: block; font-size: 12px; font-weight: 400; color: rgba(255, 255, 255, .6); }

.glass-card .gc-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 13px 0;
  font-size: 14px;
  color: rgba(255, 255, 255, .82);
  border-bottom: 1px dashed rgba(255, 255, 255, .1);
}

.glass-card .gc-row:last-child { border-bottom: none; }

.glass-card .gc-row .val { font-weight: 700; color: #7EE7F5; }

.hero-visual .float-chip {
  position: absolute;
  background: rgba(255, 255, 255, .92);
  color: var(--deep-blue);
  font-size: 13px;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 8px;
}

.float-chip.chip-a { top: -18px; right: 4px; animation: floatY 4s ease-in-out infinite; }
.float-chip.chip-b { bottom: -20px; left: 0; animation: floatY 4s ease-in-out 1.4s infinite; }

@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ---------- 页面内页 Hero（统一横幅） ---------- */
.page-hero {
  position: relative;
  background: var(--grad-hero);
  color: #fff;
  padding: 96px 0 84px;
  overflow: hidden;
  text-align: center;
}

.page-hero .hero-deco { opacity: .8; }

.page-hero .container { position: relative; z-index: 2; }

.page-hero .crumbs {
  font-size: 13px;
  color: rgba(255, 255, 255, .6);
  margin-bottom: 18px;
  letter-spacing: 1px;
}

.page-hero .crumbs a { color: rgba(255, 255, 255, .8); }
.page-hero .crumbs a:hover { color: #fff; }

.page-hero h1 {
  font-size: clamp(30px, 4.6vw, 46px);
  font-weight: 800;
  letter-spacing: 1px;
}

.page-hero p {
  margin: 16px auto 0;
  max-width: 640px;
  color: rgba(255, 255, 255, .75);
  font-size: 16px;
}

/* ---------- 卡片网格（核心业务等） ---------- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.biz-card {
  position: relative;
  background: var(--grad-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 34px 28px;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
  overflow: hidden;
}

.biz-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad-icon);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s ease;
}

.biz-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: rgba(30, 94, 255, .35); }
.biz-card:hover::before { transform: scaleX(1); }

.icon-wrap {
  width: 58px;
  height: 58px;
  border-radius: 16px;
  background: var(--grad-icon);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-primary);
  margin-bottom: 22px;
}

.icon-wrap svg { width: 28px; height: 28px; stroke: #fff; }

.biz-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; }

.biz-card p { font-size: 14.5px; color: var(--text-sub); line-height: 1.85; }

.biz-card .card-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}

.biz-card .card-more:hover { gap: 10px; }

/* 卡片跨列（5 卡布局：首行 3，次行 2 居中） */
.cards-grid.five { grid-template-columns: repeat(6, 1fr); }
.cards-grid.five .biz-card { grid-column: span 2; }
.cards-grid.five .biz-card:nth-child(4) { grid-column: 2 / span 2; }
.cards-grid.five .biz-card:nth-child(5) { grid-column: 4 / span 2; }

/* ---------- 数字统计条 ---------- */
.stats-band {
  position: relative;
  background: var(--grad-band);
  color: #fff;
  padding: 64px 0;
  overflow: hidden;
}

.stats-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
  background-size: 56px 56px;
}

.stats-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item .stat-num {
  font-size: clamp(34px, 4.5vw, 48px);
  font-weight: 800;
  letter-spacing: 1px;
  background: linear-gradient(90deg, #FFFFFF 0%, #8FBCFF 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  line-height: 1.2;
}

.stat-item .stat-label {
  margin-top: 10px;
  font-size: 15px;
  color: rgba(255, 255, 255, .72);
}

.stat-item .stat-label em {
  font-style: normal;
  display: block;
  font-size: 12px;
  color: rgba(255, 255, 255, .72);
  margin-top: 2px;
}

.stat-divider { border-left: 1px solid rgba(255, 255, 255, .14); }

/* ---------- 优势区 ---------- */
.adv-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
}

.adv-card {
  background: var(--bg-white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  text-align: center;
  transition: transform .3s ease, box-shadow .3s ease;
}

.adv-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }

.adv-card .adv-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: rgba(30, 94, 255, .08);
  display: flex;
  align-items: center;
  justify-content: center;
}

.adv-card .adv-icon svg { width: 30px; height: 30px; stroke: var(--primary); }

.adv-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }

.adv-card p { font-size: 14px; color: var(--text-sub); }

/* ---------- 服务流程 ---------- */
.process {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
  counter-reset: step;
  position: relative;
}

.step-item {
  position: relative;
  background: var(--bg-white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 30px 20px 26px;
  text-align: center;
  transition: transform .3s ease, box-shadow .3s ease;
}

.step-item:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }

.step-num {
  width: 46px;
  height: 46px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--grad-btn);
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-primary);
}

.step-item h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }

.step-item p { font-size: 13px; color: var(--text-sub); line-height: 1.75; }

.step-item:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 52px;
  right: -14px;
  width: 10px;
  height: 10px;
  border-top: 2.5px solid var(--primary);
  border-right: 2.5px solid var(--primary);
  transform: rotate(45deg);
  opacity: .5;
  z-index: 2;
}

/* ---------- FAQ 手风琴 ---------- */
.faq-list { max-width: 860px; margin: 0 auto; }

.faq-item {
  background: var(--bg-white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
  transition: border-color .3s ease, box-shadow .3s ease;
}

.faq-item.active { border-color: rgba(30, 94, 255, .4); box-shadow: var(--shadow-sm); }

.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  text-align: left;
}

.faq-q .faq-arrow {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(30, 94, 255, .08);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .3s ease, background .3s ease;
}

.faq-q .faq-arrow svg { width: 13px; height: 13px; stroke: var(--primary); transition: stroke .3s ease; }

.faq-item.active .faq-arrow { transform: rotate(180deg); background: var(--primary); }
.faq-item.active .faq-arrow svg { stroke: #fff; }

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease;
}

.faq-a p {
  padding: 0 24px 22px;
  font-size: 14.5px;
  color: var(--text-sub);
  line-height: 1.9;
}

/* ---------- 底部 CTA 横幅 ---------- */
.cta-band {
  position: relative;
  background: var(--grad-band);
  border-radius: var(--radius-lg);
  padding: 64px 48px;
  text-align: center;
  color: #fff;
  overflow: hidden;
}

.cta-band::before {
  content: "";
  position: absolute;
  width: 320px; height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34, 211, 238, .25), transparent 70%);
  top: -120px; right: -80px;
}

.cta-band::after {
  content: "";
  position: absolute;
  width: 260px; height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(91, 134, 255, .28), transparent 70%);
  bottom: -120px; left: -60px;
}

.cta-band h2 {
  position: relative;
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 800;
  z-index: 2;
}

.cta-band p {
  position: relative;
  margin: 14px 0 32px;
  color: rgba(255, 255, 255, .75);
  z-index: 2;
}

.cta-band .cta-actions { position: relative; display: flex; justify-content: center; flex-wrap: wrap; gap: 16px; z-index: 2; }

/* ---------- 关于我们：公司简介 ---------- */
.about-intro {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 56px;
  align-items: center;
}

.about-intro h2 { font-size: clamp(24px, 3.2vw, 34px); font-weight: 800; margin-bottom: 22px; }

.about-intro h2 .accent { color: var(--primary); }

.about-intro .lead { font-size: 16px; color: var(--text-sub); line-height: 2; margin-bottom: 16px; }

.about-points { margin-top: 26px; display: grid; gap: 14px; }

.about-points li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 15px;
  color: var(--text-main);
}

.about-points li .pt-ico {
  flex-shrink: 0;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: rgba(22, 163, 74, .12);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 3px;
}

.about-points li .pt-ico svg { width: 12px; height: 12px; stroke: var(--success); }

/* 装饰视觉卡（代替照片） */
.about-visual {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.deco-tile {
  border-radius: var(--radius-md);
  padding: 24px 20px;
  min-height: 150px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  color: #fff;
  font-weight: 700;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.deco-tile small { font-weight: 400; font-size: 12px; opacity: .8; margin-top: 4px; }

.deco-tile.t1 { background: var(--grad-hero); grid-row: span 2; min-height: 320px; }
.deco-tile.t2 { background: linear-gradient(135deg, #1E5EFF 0%, #22D3EE 100%); }
.deco-tile.t3 { background: linear-gradient(135deg, #0B1E3F 0%, #3B76FF 100%); }
.deco-tile.t4 { background: linear-gradient(135deg, #22D3EE 0%, #1449C7 100%); grid-column: span 2; min-height: 120px; }

.deco-tile::after {
  content: "";
  position: absolute;
  width: 140px; height: 140px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .08);
  top: -50px; right: -40px;
}

/* ---------- 时间线 ---------- */
.timeline { position: relative; max-width: 860px; margin: 0 auto; padding-left: 36px; }

.timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--primary), rgba(30, 94, 255, .1));
}

.tl-item { position: relative; padding-bottom: 36px; }

.tl-item:last-child { padding-bottom: 0; }

.tl-item::before {
  content: "";
  position: absolute;
  left: -35px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  border: 3.5px solid var(--primary);
  box-shadow: 0 0 0 4px rgba(30, 94, 255, .12);
}

.tl-year {
  display: inline-block;
  font-size: 14px;
  font-weight: 800;
  color: var(--primary);
  background: rgba(30, 94, 255, .08);
  padding: 3px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 10px;
}

.tl-item h3 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }

.tl-item p { font-size: 14.5px; color: var(--text-sub); max-width: 640px; }

/* ---------- 企业文化 ---------- */
.culture-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.culture-card {
  background: var(--bg-white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 34px 28px;
  transition: transform .3s ease, box-shadow .3s ease;
}

.culture-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }

.culture-card .cul-emoji {
  width: 54px; height: 54px;
  border-radius: 14px;
  background: rgba(30, 94, 255, .08);
  display: flex; align-items: center; justify-content: center;
  font-size: 26px;
  margin-bottom: 18px;
}

.culture-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.culture-card h3 span { color: var(--primary); }
.culture-card p { font-size: 14.5px; color: var(--text-sub); }

/* ---------- 产品方案页：图文交替板块 ---------- */
.prod-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  padding: 56px 0;
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.prod-block + .prod-block { border-top: 1px solid var(--line); }

.prod-block.reverse .prod-media { order: -1; }

.prod-media {
  border-radius: var(--radius-lg);
  background: var(--grad-hero);
  padding: 34px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.prod-media .media-tag {
  position: absolute;
  top: 20px; left: 20px;
  font-size: 12px;
  letter-spacing: 2px;
  color: rgba(255, 255, 255, .8);
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .2);
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

.prod-info h2 {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  margin-bottom: 14px;
}

.prod-info .prod-desc { font-size: 15px; color: var(--text-sub); line-height: 1.95; margin-bottom: 24px; }

.prod-info h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 1px;
  margin-bottom: 14px;
}

.feature-list { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 22px; margin-bottom: 26px; }

.feature-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 14.5px;
  color: var(--text-main);
}

.feature-list li .fi {
  flex-shrink: 0;
  width: 18px; height: 18px;
  margin-top: 4px;
  border-radius: 50%;
  background: rgba(30, 94, 255, .1);
  display: flex; align-items: center; justify-content: center;
}

.feature-list li .fi svg { width: 10px; height: 10px; stroke: var(--primary); }

.scene-box {
  background: rgba(30, 94, 255, .05);
  border: 1px dashed rgba(30, 94, 255, .3);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  font-size: 14px;
  color: var(--text-sub);
}

.scene-box strong { color: var(--primary); }

.prod-info .btn { margin-top: 26px; }

/* ---------- 案例页 ---------- */
.case-filter {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
}

.case-filter button {
  padding: 9px 24px;
  border-radius: var(--radius-full);
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text-sub);
  background: var(--bg-white);
  border: 1px solid var(--line);
  transition: all .25s ease;
}

.case-filter button:hover { color: var(--primary); border-color: rgba(30, 94, 255, .4); }

.case-filter button.active {
  color: #fff;
  background: var(--grad-btn);
  border-color: transparent;
  box-shadow: var(--shadow-primary);
}

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

.case-card {
  background: var(--bg-white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform .3s ease, box-shadow .3s ease;
  display: flex;
  flex-direction: column;
}

.case-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }

.case-card.hidden-card { display: none; }

.case-cover {
  height: 150px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.case-cover svg { width: 64px; height: 64px; opacity: .95; }

.case-cover .cover-tag {
  position: absolute;
  top: 14px; left: 14px;
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  background: rgba(255, 255, 255, .18);
  border: 1px solid rgba(255, 255, 255, .3);
  backdrop-filter: blur(4px);
  padding: 3px 12px;
  border-radius: var(--radius-full);
}

.cover-ecom { background: linear-gradient(135deg, #1E5EFF 0%, #22D3EE 100%); }
.cover-rental { background: linear-gradient(135deg, #0B1E3F 0%, #3B76FF 100%); }
.cover-finance { background: linear-gradient(135deg, #B8860B 0%, #F5A623 100%); }
.cover-drama { background: linear-gradient(135deg, #7C3AED 0%, #22D3EE 100%); }
.cover-social { background: linear-gradient(135deg, #1449C7 0%, #7C3AED 100%); }
.cover-custom { background: linear-gradient(135deg, #16A34A 0%, #22D3EE 100%); }

.case-body { padding: 24px 24px 26px; display: flex; flex-direction: column; flex: 1; }

.case-body h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }

.case-body p { font-size: 14px; color: var(--text-sub); flex: 1; }

.case-metrics {
  display: flex;
  gap: 22px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
}

.case-metrics div strong { display: block; font-size: 19px; font-weight: 800; color: var(--primary); }
.case-metrics div span { font-size: 12px; color: var(--text-light); }

/* ---------- 新闻页 ---------- */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.news-card {
  background: var(--bg-white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 28px 26px;
  display: flex;
  flex-direction: column;
  transition: transform .3s ease, box-shadow .3s ease;
}

.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }

.news-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }

.news-date {
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  background: rgba(30, 94, 255, .08);
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

.news-tag { font-size: 12px; color: var(--text-light); letter-spacing: 1px; }

.news-card h3 { font-size: 17px; font-weight: 700; line-height: 1.55; margin-bottom: 12px; }

.news-card p { font-size: 14px; color: var(--text-sub); flex: 1; }

.news-card .news-more {
  margin-top: 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.news-card .news-more:hover { gap: 10px; }

/* ---------- 联系我们 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 32px;
  align-items: stretch;
}

.info-stack { display: grid; gap: 20px; }

.info-card {
  background: var(--bg-white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 24px 26px;
  display: flex;
  gap: 18px;
  align-items: flex-start;
  transition: box-shadow .3s ease, transform .3s ease;
}

.info-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }

.info-card .info-ico {
  flex-shrink: 0;
  width: 48px; height: 48px;
  border-radius: 12px;
  background: rgba(30, 94, 255, .08);
  display: flex; align-items: center; justify-content: center;
}

.info-card .info-ico svg { width: 24px; height: 24px; stroke: var(--primary); }

.info-card h3 { font-size: 15px; font-weight: 700; margin-bottom: 4px; }

.info-card p { font-size: 14.5px; color: var(--text-sub); }

.info-card p small { display: block; font-size: 12.5px; color: var(--text-light); margin-top: 2px; }

/* 信息卡内的电话/邮箱/官网链接：继承正文颜色，hover 转为品牌主色 */
.info-card p a {
  color: inherit;
  border-bottom: 1px dashed rgba(30, 94, 255, .35);
  transition: color .25s ease, border-color .25s ease;
}

.info-card p a:hover {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

/* 表单 */
.form-card {
  background: var(--bg-white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 36px 34px;
  box-shadow: var(--shadow-sm);
}

.form-card h3 { font-size: 20px; font-weight: 800; margin-bottom: 6px; }

.form-card .form-tip { font-size: 13.5px; color: var(--text-light); margin-bottom: 26px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

.form-group { margin-bottom: 18px; }

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
}

.form-group label .req { color: #C7353A; margin-left: 3px; }

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 14.5px;
  font-family: inherit;
  color: var(--text-main);
  background: var(--bg-page);
  border: 1.5px solid var(--line);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color .25s ease, box-shadow .25s ease;
}

.form-group textarea { resize: vertical; min-height: 120px; }

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(30, 94, 255, .12);
  background: #fff;
}

.form-group input.invalid,
.form-group textarea.invalid,
.form-group select.invalid {
  border-color: #E5484D;
  box-shadow: 0 0 0 3px rgba(229, 72, 77, .1);
}

.form-error {
  display: none;
  font-size: 12.5px;
  color: #C7353A;
  margin-top: 6px;
}

.form-error.show { display: block; }

.form-submit { width: 100%; margin-top: 6px; }

.form-success {
  display: none;
  margin-top: 18px;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  background: rgba(22, 163, 74, .08);
  border: 1px solid rgba(22, 163, 74, .35);
  color: var(--success);
  font-size: 14px;
  font-weight: 600;
  text-align: center;
}

.form-success.show { display: block; animation: fadeInUp .4s ease; }

/* 地图占位 */
.map-placeholder {
  margin-top: 40px;
  border-radius: var(--radius-lg);
  height: 320px;
  background:
    linear-gradient(rgba(30, 94, 255, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 94, 255, .05) 1px, transparent 1px),
    linear-gradient(135deg, #EAF1FF 0%, #F6F8FC 100%);
  background-size: 40px 40px, 40px 40px, cover;
  border: 1px solid var(--line);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.map-placeholder .map-pin {
  text-align: center;
  color: var(--text-sub);
}

.map-placeholder .map-pin svg {
  width: 44px; height: 44px;
  margin: 0 auto 10px;
  stroke: var(--primary);
  animation: floatY 3s ease-in-out infinite;
}

.map-placeholder .map-pin strong { display: block; color: var(--text-main); font-size: 15px; }

.map-placeholder .map-fake-road {
  position: absolute;
  background: rgba(30, 94, 255, .12);
  border-radius: 4px;
}

.map-placeholder .r1 { width: 100%; height: 14px; top: 38%; transform: rotate(-6deg); }
.map-placeholder .r2 { width: 12px; height: 100%; left: 62%; transform: rotate(8deg); }
.map-placeholder .r3 { width: 8px; height: 70%; left: 26%; top: 10%; transform: rotate(20deg); opacity: .6; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--deep-blue);
  color: rgba(255, 255, 255, .68);
  margin-top: 0;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding: 72px 0 52px;
}

.footer-brand .logo { color: #fff; margin-bottom: 18px; }
.footer-brand .logo small { color: rgba(255, 255, 255, .55); }

.footer-brand p {
  font-size: 14px;
  line-height: 1.9;
  max-width: 300px;
}

.footer-col h4 {
  color: #fff;
  font-size: 15.5px;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: 1px;
  position: relative;
  padding-bottom: 12px;
}

.footer-col h4::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 24px; height: 2.5px;
  border-radius: 2px;
  background: var(--grad-icon);
}

.footer-col ul li { margin-bottom: 11px; }

.footer-col ul a {
  font-size: 14px;
  color: rgba(255, 255, 255, .62);
}

.footer-col ul a:hover { color: #fff; padding-left: 4px; }

.footer-contact li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 14px;
  margin-bottom: 13px;
}

.footer-contact li svg {
  flex-shrink: 0;
  width: 17px; height: 17px;
  stroke: var(--primary-light);
  margin-top: 4px;
}

/* 联系方式中的电话/邮箱链接：沿用 .footer-col ul a 配色，取消导航项的左侧位移 */
.footer-contact li a {
  color: inherit;
  transition: color .25s ease;
}

.footer-contact li a:hover { color: #fff; padding-left: 0; }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1);
  padding: 22px 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: rgba(255, 255, 255, .55);
}

.footer-bottom a { color: rgba(255, 255, 255, .55); }
.footer-bottom a:hover { color: #fff; }

/* 备案号 + 网址：保持底栏两栏结构，内部横向排列 */
.footer-legal {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.footer-legal-sep { color: rgba(255, 255, 255, .25); }

/* ---------- 滚动出现动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity .7s ease, transform .7s ease;
  will-change: opacity, transform;
}

.reveal.visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  /* 导航：1024px 及以下统一切换为汉堡菜单，避免 7 项导航折行 */
  .hamburger { display: flex; }

  .nav-links {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    background: rgba(255, 255, 255, .97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
    padding: 16px 24px 24px;
    box-shadow: var(--shadow-md);
    transform: translateY(-16px);
    opacity: 0;
    visibility: hidden;
    transition: transform .3s ease, opacity .3s ease, visibility .3s ease;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-links a { padding: 13px 12px; font-size: 16px; }
  .nav-links a.active::after { display: none; }
  .nav-links a.active { background: rgba(30, 94, 255, .07); border-radius: var(--radius-sm); }

  .nav-cta { margin: 12px 0 0; }

  .section { padding: 76px 0; }

  .hero-inner { grid-template-columns: 1fr; gap: 56px; }
  .hero-visual { max-width: 460px; margin: 0 auto; }

  .cards-grid, .cards-grid.five { grid-template-columns: repeat(2, 1fr); }
  .cards-grid.five .biz-card,
  .cards-grid.five .biz-card:nth-child(4),
  .cards-grid.five .biz-card:nth-child(5) { grid-column: span 1; }

  .adv-grid { grid-template-columns: repeat(2, 1fr); }

  .process { grid-template-columns: repeat(3, 1fr); row-gap: 32px; }
  .step-item:nth-child(3)::after { display: none; }

  .about-intro { grid-template-columns: 1fr; gap: 44px; }

  .prod-block { grid-template-columns: 1fr; gap: 36px; }
  .prod-block.reverse .prod-media { order: 0; }

  .case-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }

  .contact-grid { grid-template-columns: 1fr; }

  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root { --header-h: 64px; }

  /* 导航的汉堡菜单样式已上移至 1024px 断点统一处理 */
  .hero { padding: 76px 0 96px; min-height: auto; }
  .hero-actions .btn { flex: 1; }

  .section { padding: 60px 0; }
  .section-head { margin-bottom: 40px; }

  .cards-grid, .cards-grid.five, .adv-grid, .case-grid, .news-grid, .culture-grid { grid-template-columns: 1fr; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 34px 16px; }
  .stat-item.stat-divider { border-left: none; }

  .process { grid-template-columns: 1fr; }
  .step-item:not(:last-child)::after {
    display: none;
  }

  .cta-band { padding: 48px 26px; }
  .cta-band .cta-actions .btn { width: 100%; }

  .form-row { grid-template-columns: 1fr; }
  .form-card { padding: 28px 22px; }

  .footer-top { grid-template-columns: 1fr; gap: 36px; padding: 52px 0 40px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-legal { justify-content: center; }

  .about-visual { grid-template-columns: 1fr 1fr; }

  .prod-info .btn { width: 100%; }
}

/* ---------- 右侧悬浮拨号按钮 ---------- */
.call-fab {
  position: fixed;
  right: 22px;
  bottom: 104px;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  color: #fff;
  text-decoration: none;
  background: linear-gradient(135deg, #1E5EFF 0%, #22D3EE 100%);
  box-shadow: 0 10px 26px rgba(30, 94, 255, .42);
  transition: transform .28s ease, box-shadow .28s ease;
}

.call-fab:hover,
.call-fab:focus-visible {
  transform: translateY(-3px) scale(1.04);
  box-shadow: 0 16px 34px rgba(30, 94, 255, .5);
  color: #fff;
}

.call-fab:focus-visible { outline: 3px solid rgba(30, 94, 255, .45); outline-offset: 3px; }

.call-fab-icon {
  position: relative;
  z-index: 2;
  width: 26px;
  height: 26px;
}

.call-fab-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: rgba(30, 94, 255, .45);
  animation: callPulse 2.4s ease-out infinite;
}

@keyframes callPulse {
  0%   { transform: scale(1);   opacity: .55; }
  70%  { transform: scale(1.65); opacity: 0; }
  100% { transform: scale(1.65); opacity: 0; }
}

.call-fab-tip {
  position: absolute;
  right: calc(100% + 12px);
  padding: 7px 12px;
  border-radius: 8px;
  background: #0B1E3F;
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  transform: translateX(8px);
  pointer-events: none;
  transition: opacity .25s ease, transform .25s ease;
}

.call-fab:hover .call-fab-tip,
.call-fab:focus-visible .call-fab-tip { opacity: 1; transform: none; }

/* 桌面端点击后（复制号码）保持气泡可见，给出反馈 */
.call-fab.is-copied .call-fab-tip {
  opacity: 1;
  transform: none;
  background: #15803D;
}

@media (prefers-reduced-motion: reduce) {
  .call-fab-ring { animation: none; opacity: 0; }
}

@media (max-width: 768px) {
  .call-fab { right: 14px; bottom: 78px; width: 52px; height: 52px; }
  .call-fab-icon { width: 23px; height: 23px; }
  .call-fab-tip { display: none; }
}