/* =====================================================
   新能科技 · 智慧教育服务商官网 样式表
   主色：教育蓝 #1e5fbf / 成长绿 #18b98a / 阳光橙 #ff9f1c
   ===================================================== */
:root {
  --primary: #1e5fbf;
  --primary-d: #164a95;
  --primary-l: #3d82e0;
  --accent: #18b98a;
  --accent-d: #12996f;
  --sun: #ff9f1c;
  --dark: #0f2036;
  --text: #38445a;
  --muted: #6c7a90;
  --bg: #f5f8fd;
  --line: #e4ecf7;
  --radius: 16px;
  --shadow: 0 8px 26px rgba(20, 60, 120, .07);
  --shadow-lg: 0 18px 46px rgba(20, 60, 120, .14);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  color: var(--text); background: #fff; line-height: 1.78; font-size: 15px;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
.container { width: min(1180px, 92%); margin: 0 auto; }

/* ---------- 顶栏 ---------- */
.topbar {
  background: linear-gradient(90deg, #0d2a55, #17407e);
  color: #b8cdea; font-size: 13px;
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 9px 0; flex-wrap: wrap; }
.topbar b { color: #fff; font-weight: 600; }

/* ---------- 导航 ---------- */
.navbar {
  position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.96);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--line);
}
.navbar .container { display: flex; justify-content: space-between; align-items: center; gap: 18px; padding: 13px 0; }
.logo { display: flex; align-items: center; gap: 11px; }
.logo-mark {
  width: 42px; height: 42px; border-radius: 12px; flex: none; color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center; font-size: 20px; font-weight: 700;
}
.logo-text strong { display: block; font-size: 16px; color: var(--dark); line-height: 1.35; }
.logo-text span { font-size: 11.5px; color: var(--muted); letter-spacing: .5px; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
  padding: 9px 15px; border-radius: 9px; font-size: 14.5px; color: #3c4a60; transition: all .2s; white-space: nowrap;
}
.nav-links a:hover { background: #eef4ff; color: var(--primary); }
.nav-links a.active { color: var(--primary); font-weight: 600; background: #eef4ff; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 12px 26px; border-radius: 11px;
  font-size: 14.5px; font-weight: 600; border: none; cursor: pointer; font-family: inherit; transition: all .25s;
}
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-l)); color: #fff; box-shadow: 0 8px 20px rgba(30,95,191,.28); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgba(30,95,191,.34); }
.btn-accent { background: linear-gradient(135deg, var(--accent), #2ed3a0); color: #fff; box-shadow: 0 8px 20px rgba(24,185,138,.28); }
.btn-accent:hover { transform: translateY(-2px); }
.btn-ghost { background: rgba(255,255,255,.14); color: #fff; border: 1.5px solid rgba(255,255,255,.5); }
.btn-ghost:hover { background: rgba(255,255,255,.24); }
.btn-outline { background: #fff; color: var(--primary); border: 1.5px solid #c9dcf7; }
.btn-outline:hover { border-color: var(--primary); background: #f6faff; }
.nav-toggle { display: none; background: none; border: none; font-size: 24px; color: var(--primary); cursor: pointer; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden; color: #fff; padding: 84px 0 92px;
  background:
    radial-gradient(760px 380px at 84% -8%, rgba(24,185,138,.34), transparent 62%),
    radial-gradient(620px 420px at 4% 108%, rgba(255,159,28,.22), transparent 62%),
    linear-gradient(150deg, #0a2450 0%, #14417f 58%, #1e5fbf 100%);
}
.hero .kicker { color: #9fd7c6; font-size: 13px; font-weight: 700; letter-spacing: 4px; margin-bottom: 16px; }
.hero h1 { font-size: clamp(30px, 4.4vw, 50px); line-height: 1.32; letter-spacing: -.5px; }
.hero h1 em { font-style: normal; background: linear-gradient(90deg, #7fe6c2, #ffd88a); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.desc { margin: 22px 0 0; max-width: 660px; color: #c3d6ee; font-size: 16.5px; }
.hero-actions { display: flex; gap: 14px; margin-top: 32px; flex-wrap: wrap; }
.hero-tags { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 34px; }
.hero-tags span {
  font-size: 13px; padding: 7px 15px; border-radius: 999px;
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.22); color: #dbe9fb;
}

/* ---------- 通用区块 ---------- */
.section { padding: 76px 0; }
.section.soft { background: var(--bg); }
.section.dark { background: linear-gradient(150deg, #0b2549, #164279); color: #d6e4f7; }
.section-head { text-align: center; max-width: 760px; margin: 0 auto 46px; }
.section-head .kicker { color: var(--accent); font-size: 13px; font-weight: 700; letter-spacing: 4px; text-transform: uppercase; }
.section-head h2 { font-size: clamp(24px, 3vw, 34px); color: var(--dark); margin: 12px 0 14px; line-height: 1.4; }
.section-head p { color: var(--muted); font-size: 15.5px; }
.section.dark .section-head h2 { color: #fff; }
.section.dark .section-head p { color: #a9c1de; }

/* ---------- 卡片网格 ---------- */
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 26px; box-shadow: var(--shadow); transition: all .3s;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: #cfe0f8; }
.card .ic {
  width: 52px; height: 52px; border-radius: 14px; font-size: 24px; margin-bottom: 16px;
  background: linear-gradient(135deg, #e9f1ff, #eefbf6);
  display: flex; align-items: center; justify-content: center;
}
.card h3 { font-size: 18px; color: var(--dark); margin-bottom: 10px; }
.card p { font-size: 14px; color: var(--muted); }
.card .tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 14px; }
.card .tags span {
  font-size: 12px; color: #33517a; background: #eef4ff; border: 1px solid #dbe8fb;
  border-radius: 6px; padding: 4px 10px;
}
.card .more { display: inline-block; margin-top: 14px; color: var(--primary); font-size: 13.5px; font-weight: 600; }

/* ---------- 数据背书 ---------- */
.stats { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.stat.span-full { grid-column: span 1; }
.stat { text-align: center; padding: 24px 16px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.14); border-radius: 14px; }
.stat .num { font-size: 38px; font-weight: 700; color: #fff; line-height: 1.2; }
.stat .num small { font-size: 15px; font-weight: 500; color: #8fe3c8; }
.stat .lbl { font-size: 13.5px; color: #a9c1de; margin-top: 6px; }

/* ---------- 服务清单（services 页） ---------- */
.svc-block { margin-bottom: 54px; }
.svc-title { display: flex; align-items: center; gap: 14px; margin-bottom: 22px; }
.svc-title .no {
  width: 46px; height: 46px; border-radius: 13px; flex: none; font-size: 17px; font-weight: 700; color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
}
.svc-title h3 { font-size: 22px; color: var(--dark); }
.svc-title span { font-size: 13px; color: var(--muted); display: block; font-weight: 400; }
.svc-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.svc-item {
  display: flex; gap: 12px; padding: 18px 20px; border: 1px solid var(--line);
  border-radius: 13px; background: #fff; transition: all .25s;
}
.svc-item:hover { border-color: #bcd6f7; background: #f9fcff; transform: translateX(4px); }
.svc-item .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); margin-top: 10px; flex: none; }
.svc-item strong { font-size: 15px; color: var(--dark); display: block; margin-bottom: 3px; }
.svc-item p { font-size: 13.5px; color: var(--muted); }

/* ---------- 流程 ---------- */
.flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.flow-step { position: relative; text-align: center; padding: 26px 14px; background: #fff; border: 1px solid var(--line); border-radius: 14px; }
.flow-step .n {
  width: 38px; height: 38px; margin: 0 auto 12px; border-radius: 50%; color: #fff; font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--primary-l));
  display: flex; align-items: center; justify-content: center;
}
.flow-step h4 { font-size: 15px; color: var(--dark); margin-bottom: 6px; }
.flow-step p { font-size: 12.8px; color: var(--muted); }

/* ---------- 解决方案 ---------- */
.sol-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 28px; box-shadow: var(--shadow); transition: all .3s;
}
.sol-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.sol-card .head { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.sol-card .head .emoji { font-size: 30px; }
.sol-card .head h3 { font-size: 19px; color: var(--dark); }
.sol-card .head span { font-size: 12px; color: var(--accent); font-weight: 700; letter-spacing: 1.5px; display: block; }
.sol-card .pain { font-size: 13.5px; color: #8a6a2a; background: #fff8ec; border-left: 3px solid var(--sun); padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; }
.sol-card ul li { font-size: 14px; color: var(--text); padding: 5px 0 5px 22px; position: relative; }
.sol-card ul li::before { content: "▸"; position: absolute; left: 4px; color: var(--primary); }

/* ---------- 案例 ---------- */
.case { display: flex; gap: 20px; padding: 22px; background: #fff; border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); }
.case .badge {
  width: 96px; height: 96px; border-radius: 14px; flex: none; color: #fff; text-align: center;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; flex-direction: column; align-items: center; justify-content: center; font-weight: 700;
}
.case .badge b { font-size: 24px; }
.case .badge small { font-size: 11.5px; font-weight: 400; opacity: .9; }
.case h4 { font-size: 16.5px; color: var(--dark); margin-bottom: 6px; }
.case p { font-size: 13.8px; color: var(--muted); }

/* ---------- 特色/为什么 ---------- */
.why { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.why-item { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.14); border-radius: 14px; padding: 26px 22px; }
.why-item .e { font-size: 28px; margin-bottom: 10px; }
.why-item h4 { font-size: 16.5px; color: #fff; margin-bottom: 8px; }
.why-item p { font-size: 13.8px; color: #a9c1de; }

/* ---------- 品牌墙 ---------- */
.brands { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.brands span {
  padding: 11px 22px; border-radius: 11px; background: #fff; border: 1px solid var(--line);
  font-size: 14px; color: #3c4a60; box-shadow: var(--shadow);
}

/* ---------- CTA ---------- */
.cta {
  padding: 66px 0; text-align: center; color: #fff;
  background:
    radial-gradient(600px 300px at 80% 0%, rgba(24,185,138,.3), transparent 60%),
    linear-gradient(135deg, #0d2a55, #1a4d92);
}
.cta h2 { font-size: clamp(24px, 3vw, 32px); margin-bottom: 14px; }
.cta p { color: #b8cdea; max-width: 620px; margin: 0 auto 28px; }
.cta .hero-actions { justify-content: center; }

/* ---------- 表单 ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { margin-bottom: 4px; }
.field label { display: block; font-size: 13.5px; font-weight: 600; color: var(--dark); margin-bottom: 7px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 15px; border-radius: 10px; border: 1.5px solid #d5e1f2;
  font-size: 14px; font-family: inherit; background: #fbfdff; color: var(--text);
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--primary); background: #fff; }
.field.full { grid-column: 1 / -1; }

/* ---------- 联系信息 ---------- */
.info-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); display: flex; gap: 15px; }
.info-card .e { font-size: 26px; }
.info-card h4 { font-size: 15.5px; color: var(--dark); margin-bottom: 5px; }
.info-card p { font-size: 14px; color: var(--muted); }

/* ---------- FAQ ---------- */
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: 13px; padding: 20px 24px; margin-bottom: 12px; }
.faq-item h4 { font-size: 15.5px; color: var(--dark); margin-bottom: 7px; }
.faq-item p { font-size: 14px; color: var(--muted); }

/* ---------- 页脚 ---------- */
footer { background: #0a1f3d; color: #93a8c6; padding: 54px 0 26px; font-size: 14px; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 30px; }
footer h4 { color: #fff; font-size: 15px; margin-bottom: 14px; }
footer a:hover { color: #fff; }
footer li { margin-bottom: 8px; font-size: 13.5px; }
.foot-bottom { border-top: 1px solid #17324f; margin-top: 34px; padding-top: 20px; display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; font-size: 13px; color: #6f88a8; }

/* ---------- 首页滚动大图 ---------- */
.slider-section { padding: 62px 0 0; background: #fff; }
.slider-mask { position: relative; overflow: hidden; background: #0b2549; }
.slider-track { display: flex; transition: transform .8s cubic-bezier(.45,.05,.2,1); will-change: transform; }
.slide { position: relative; flex: 0 0 100%; height: clamp(340px, 46vw, 560px); overflow: hidden; }
.slide img { width: 100%; height: 100%; object-fit: cover; object-position: center; transform: scale(1.02); }
.slide-veil {
  position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(180deg, rgba(4,16,36,0) 52%, rgba(4,16,36,.62) 100%),
    linear-gradient(100deg, rgba(4,16,36,.94) 0%, rgba(6,22,46,.84) 30%, rgba(8,28,58,.46) 56%, rgba(8,28,58,.06) 82%, rgba(8,28,58,0) 100%);
}
.slide-body { position: absolute; inset: 0; display: flex; align-items: center; }
.slide-inner { max-width: 580px; color: #fff; }
.slide-tag {
  display: inline-block; font-size: 12.5px; font-weight: 700; letter-spacing: 1.4px;
  padding: 6px 15px; border-radius: 999px; margin-bottom: 15px;
  color: #9df0d2; background: rgba(24,185,138,.18); border: 1px solid rgba(24,185,138,.5);
}
.slide-inner h3 { font-size: clamp(21px, 2.6vw, 33px); line-height: 1.34; letter-spacing: -.3px; }
.slide-inner p { font-size: 15px; color: #cfe0f6; margin: 14px 0 22px; }
.slide-link {
  display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: #fff;
  padding-bottom: 4px; border-bottom: 2px solid rgba(255,255,255,.4); transition: all .25s;
}
.slide-link:hover { color: #9df0d2; border-color: var(--accent); }

.slider-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 6;
  width: 46px; height: 46px; padding: 0; border-radius: 50%; cursor: pointer; font-family: inherit;
  font-size: 25px; line-height: 1; color: #fff; border: 1px solid rgba(255,255,255,.34);
  background: rgba(8,26,52,.44); backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center; transition: all .25s;
}
.slider-arrow:hover { background: var(--primary); border-color: var(--primary); transform: translateY(-50%) scale(1.06); }
.slider-arrow.prev { left: 22px; }
.slider-arrow.next { right: 22px; }

.slider-dots { position: absolute; left: 0; right: 0; bottom: 22px; z-index: 6; display: flex; justify-content: center; gap: 10px; }
.slider-dots button {
  width: 10px; height: 10px; padding: 0; border: none; border-radius: 999px; cursor: pointer;
  background: rgba(255,255,255,.45); transition: all .35s;
}
.slider-dots button:hover { background: rgba(255,255,255,.75); }
.slider-dots button.on { width: 32px; background: linear-gradient(90deg, var(--accent), #7fe6c2); }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .grid-3, .grid-4, .why, .svc-list, .stats { grid-template-columns: repeat(2, 1fr); }
  .flow { grid-template-columns: repeat(2, 1fr); }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .nav-links {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; background: #fff; padding: 12px;
    border-bottom: 1px solid var(--line); box-shadow: 0 12px 30px rgba(10,40,100,.1);
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  /* 轮播：改为底部压字，避免遮挡画面主体 */
  .slide { height: clamp(370px, 62vw, 500px); }
  .slide-veil {
    background: linear-gradient(180deg, rgba(4,16,36,.10) 0%, rgba(4,16,36,.70) 44%, rgba(4,16,36,.95) 100%);
  }
  .slide-body { align-items: flex-end; padding-bottom: 62px; }
  .slide-inner { max-width: 100%; }
  .slide-inner p { margin: 12px 0 18px; font-size: 14.5px; }
  .slider-arrow.prev { left: 12px; }
  .slider-arrow.next { right: 12px; }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4, .why, .svc-list, .stats, .flow, .form-grid, .foot-grid { grid-template-columns: 1fr; }
  .section { padding: 54px 0; }
  .hero { padding: 60px 0 66px; }
  .case { flex-direction: column; }
  .topbar .container { justify-content: center; text-align: center; }
  .slider-section { padding: 46px 0 0; }
  .slide { height: 440px; }
  .slide-body { padding-bottom: 54px; }
  .slide-tag { font-size: 11.5px; padding: 5px 12px; }
  .slide-inner p { font-size: 13.6px; }
  .slider-arrow { width: 36px; height: 36px; font-size: 20px; }
  .slider-dots { bottom: 16px; }
}