/* ============================================================
   佛山市南海区拓全管理咨询有限公司 · 官网样式
   风格：简约大气（留白 / 深墨蓝 + 暖金点缀 / 克制的动效）
   ============================================================ */

:root {
  /* 主色：深墨蓝，沉稳、可信（咨询+科技） */
  --ink: #11263f;
  --ink-2: #1c3a5e;
  --ink-soft: #2a4a72;
  /* 点缀：暖金，提升质感与“大气” */
  --accent: #c9a24b;
  --accent-deep: #a8842f;
  --accent-soft: #f2e9d4;

  --bg: #ffffff;
  --bg-alt: #f6f8fb;
  --bg-dark: #0c1d31;

  --text: #2a3548;
  --muted: #6b7689;
  --line: #e6eaf0;

  --radius: 14px;
  --shadow-sm: 0 4px 18px rgba(17, 38, 63, 0.06);
  --shadow-md: 0 12px 40px rgba(17, 38, 63, 0.10);
  --shadow-lg: 0 24px 60px rgba(17, 38, 63, 0.14);

  --maxw: 1180px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);

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

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

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

/* ---------- 通用排版 ---------- */
.section { padding: 96px 0; }
.section--alt { background: var(--bg-alt); }
.section--dark {
  background: linear-gradient(160deg, var(--bg-dark), var(--ink) 70%);
  color: #eaf0f7;
}

.eyebrow {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent-deep);
  font-weight: 700;
  margin-bottom: 14px;
}
.section--dark .eyebrow { color: var(--accent); }

.section-title {
  font-size: 34px;
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--ink);
  margin-bottom: 16px;
}
.section--dark .section-title { color: #fff; }

.section-sub {
  color: var(--muted);
  max-width: 640px;
  font-size: 16px;
}
.section--dark .section-sub { color: #b9c6d6; }

.lead {
  font-size: 18px;
  color: var(--ink-soft);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.5px;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: all 0.3s var(--ease);
  white-space: nowrap;
}
.btn--primary {
  background: var(--accent);
  color: #2a210a;
  box-shadow: 0 8px 22px rgba(201, 162, 75, 0.32);
}
.btn--primary:hover {
  background: var(--accent-deep);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(168, 132, 47, 0.4);
}
.btn--ghost {
  border-color: rgba(255, 255, 255, 0.4);
  color: #fff;
}
.btn--ghost:hover { background: rgba(255, 255, 255, 0.12); border-color: #fff; }
.btn--outline {
  border-color: var(--ink);
  color: var(--ink);
}
.btn--outline:hover { background: var(--ink); color: #fff; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.3s var(--ease);
}
.site-header.scrolled { box-shadow: var(--shadow-sm); }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: 0.5px;
}
.brand .logo {
  display: block;
  width: auto; height: 40px;
  background: none;
  box-shadow: none;
  border-radius: 0;
  font-size: 0;
}
.brand .brand-text small {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
}
.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  position: relative;
  padding: 6px 0;
  transition: color 0.25s;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 2px;
  background: var(--accent);
  transition: width 0.3s var(--ease);
}
.nav-links a:hover,
.nav-links a.active { color: var(--ink); }
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

.nav-cta { display: flex; align-items: center; gap: 14px; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.hamburger span {
  width: 24px; height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: all 0.3s var(--ease);
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--bg-dark);
  color: #c4d0de;
  padding: 64px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand .logo {
  display: block;
  width: auto; height: 44px;
  background: none;
  box-shadow: none;
  border-radius: 0;
  font-size: 0;
  margin-bottom: 16px;
}
.brand .logo img,
.footer-brand .logo img { height: 100%; width: auto; display: block; }
.footer-brand p { color: #9fb0c4; font-size: 14px; max-width: 300px; }
.footer-col h4 {
  color: #fff;
  font-size: 15px;
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.footer-col a, .footer-col li {
  display: block;
  color: #9fb0c4;
  font-size: 14px;
  margin-bottom: 10px;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--accent); }
.footer-contact li { display: flex; gap: 10px; align-items: flex-start; }
.footer-bottom {
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13px;
  color: #7d8ca0;
}

/* 备案号：页脚最底部居中 */
.beian {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  text-align: center;
}
.beian a {
  color: #9fb0c3;
  font-size: 13px;
  text-decoration: none;
  letter-spacing: 0.3px;
  transition: color 0.2s ease;
}
.beian a:hover {
  color: var(--accent);
}

/* ---------- Hero（首页） ---------- */
.hero {
  position: relative;
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(201,162,75,0.16), transparent 60%),
    linear-gradient(160deg, var(--ink) 0%, var(--bg-dark) 100%);
  color: #eaf0f7;
  padding: 110px 0 120px;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at 70% 30%, black, transparent 75%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 2; }
.hero h1 {
  font-size: 52px;
  line-height: 1.22;
  font-weight: 800;
  letter-spacing: 1px;
  margin: 18px 0 22px;
  max-width: 780px;
}
.hero h1 .hl { color: var(--accent); }
.hero p.lead {
  color: #c2cfde;
  font-size: 19px;
  max-width: 620px;
  margin-bottom: 36px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats {
  display: flex;
  gap: 36px;
  margin-top: 64px;
  flex-wrap: wrap;
}
.hero-stats .stat {
  text-align: center;
  min-width: 92px;
}
.hero-stats .stat .num {
  font-size: 28px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 1px;
}
.hero-stats .stat .num span { color: var(--accent); }
.hero-stats .stat .label {
  color: #9fb0c4;
  font-size: 14px;
  margin-top: 6px;
  line-height: 1.35;
}

/* ---------- 业务卡片 ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px 30px;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.card .icon {
  width: 54px; height: 54px;
  border-radius: 13px;
  display: grid; place-items: center;
  background: var(--accent-soft);
  color: var(--accent-deep);
  font-size: 26px;
  margin-bottom: 20px;
}
.card h3 { font-size: 19px; color: var(--ink); margin-bottom: 10px; letter-spacing: 0.5px; }
.card p { color: var(--muted); font-size: 15px; }

/* ---------- 优势列表 ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-top: 48px;
}
.feature {
  display: flex;
  gap: 18px;
  padding: 26px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
}
.feature .fnum {
  font-size: 26px; font-weight: 800; color: var(--accent);
  min-width: 44px;
}
.feature h4 { color: #fff; font-size: 17px; margin-bottom: 6px; }
.feature p { color: #b9c6d6; font-size: 14.5px; }

/* ---------- 数据条 ---------- */
.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 10px;
}
.metric {
  text-align: center;
  padding: 30px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}
.metric .n { font-size: 40px; font-weight: 800; color: var(--ink); }
.metric .n span { color: var(--accent-deep); }
.metric .t { color: var(--muted); font-size: 14px; margin-top: 6px; }

/* ---------- 双栏（关于/联系） ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.split .visual {
  border-radius: 18px;
  min-height: 360px;
  background: linear-gradient(150deg, var(--ink-2), var(--ink));
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.split .visual::before {
  content: "拓全";
  position: absolute;
  right: -10px; top: 50%;
  transform: translateY(-50%);
  font-size: 180px;
  font-weight: 800;
  color: rgba(255,255,255,0.05);
  letter-spacing: 4px;
}
.split .visual .tag {
  position: absolute;
  left: 28px; bottom: 28px;
  color: #fff;
  font-size: 15px;
  letter-spacing: 2px;
}
.checklist li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line);
  color: var(--text);
}
.checklist li:last-child { border-bottom: none; }
.checklist .tick {
  color: var(--accent-deep);
  font-weight: 800;
  flex-shrink: 0;
}

/* ---------- 时间线（关于） ---------- */
.timeline { margin-top: 20px; position: relative; padding-left: 28px; }
.timeline::before {
  content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px;
  width: 2px; background: var(--line);
}
.timeline li { position: relative; padding: 0 0 26px 0; }
.timeline li::before {
  content: ""; position: absolute; left: -28px; top: 6px;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--accent); border: 3px solid #fff;
  box-shadow: 0 0 0 2px var(--accent);
}
.timeline .yr { font-weight: 800; color: var(--ink); }
.timeline p { color: var(--muted); font-size: 15px; }

/* ---------- 服务分组 ---------- */
.svc-group { margin-bottom: 54px; }
.svc-group:last-child { margin-bottom: 0; }
.svc-group .sg-head {
  display: flex; align-items: center; gap: 14px; margin-bottom: 24px;
}
.svc-group .sg-head .sg-ico {
  width: 46px; height: 46px; border-radius: 12px;
  background: var(--ink); color: var(--accent);
  display: grid; place-items: center; font-size: 22px;
}
.svc-group .sg-head h3 { font-size: 22px; color: var(--ink); letter-spacing: 0.5px; }
.svc-group .sg-head small { display:block; color: var(--muted); font-size: 13px; font-weight: 400; }
.svc-list { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; }
.svc-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px;
  transition: all 0.3s var(--ease);
  background: #fff;
}
.svc-item:hover { border-color: var(--accent); box-shadow: var(--shadow-sm); }
.svc-item h4 { color: var(--ink); font-size: 16.5px; margin-bottom: 6px; }
.svc-item p { color: var(--muted); font-size: 14px; }

/* ---------- 联系 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 48px;
  align-items: start;
}
.contact-info .ci {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 18px 0; border-bottom: 1px solid var(--line);
}
.contact-info .ci .ci-ico {
  width: 44px; height: 44px; border-radius: 11px;
  background: var(--accent-soft); color: var(--accent-deep);
  display: grid; place-items: center; font-size: 20px; flex-shrink: 0;
}
.contact-info .ci h5 { font-size: 15px; color: var(--ink); margin-bottom: 2px; }
.contact-info .ci p { color: var(--muted); font-size: 14.5px; }

.form {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 34px;
  box-shadow: var(--shadow-sm);
}
.form h3 { color: var(--ink); margin-bottom: 6px; font-size: 20px; }
.form .form-sub { color: var(--muted); font-size: 14px; margin-bottom: 22px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 14px; color: var(--text); margin-bottom: 7px; font-weight: 600; }
.field input, .field textarea, .field select {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  font-size: 15px;
  font-family: inherit;
  color: var(--text);
  background: #fbfcfe;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(201,162,75,0.15);
  background: #fff;
}
.field textarea { resize: vertical; min-height: 110px; }
.field .err { color: #c0392b; font-size: 13px; margin-top: 6px; display: none; }
.field.invalid input, .field.invalid textarea { border-color: #c0392b; }
.field.invalid .err { display: block; }

.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-note { font-size: 13px; color: var(--muted); margin-top: 6px; }
.form-success {
  display: none;
  background: #eafaf1;
  border: 1px solid #b7e4c7;
  color: #1d7a45;
  padding: 14px 16px;
  border-radius: 10px;
  font-size: 14px;
  margin-bottom: 18px;
}
.form-success.show { display: block; }

.map {
  margin-top: 56px;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--line);
  min-height: 320px;
  background:
    linear-gradient(135deg, #e8eef5, #dde7f1);
  position: relative;
  display: grid; place-items: center;
  color: var(--muted);
}
.map .map-pin {
  text-align: center;
}
.map .map-pin .pin {
  width: 54px; height: 54px; border-radius: 50% 50% 50% 0;
  background: var(--accent); transform: rotate(-45deg);
  margin: 0 auto 16px; box-shadow: var(--shadow-sm);
}
.map .map-pin .pin::after {
  content: ""; display: block; width: 18px; height: 18px; border-radius: 50%;
  background: #fff; position: relative; top: 18px; left: 18px;
}

/* ---------- 面包屑 ---------- */
.page-hero {
  background: linear-gradient(160deg, var(--ink), var(--bg-dark));
  color: #eaf0f7;
  padding: 76px 0 64px;
}
.page-hero .crumb { font-size: 13px; color: #9fb0c4; margin-bottom: 14px; letter-spacing: 1px; }
.page-hero .crumb a:hover { color: var(--accent); }
.page-hero h1 { font-size: 40px; font-weight: 800; letter-spacing: 1px; }
.page-hero p { color: #c2cfde; margin-top: 12px; max-width: 640px; }

/* ---------- CTA 横幅 ---------- */
.cta-band {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  border-radius: 20px;
  padding: 56px 48px;
  color: #2a210a;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
  box-shadow: var(--shadow-md);
}
.cta-band h2 { font-size: 28px; color: #2a210a; font-weight: 800; }
.cta-band p { color: #5a4818; margin-top: 8px; max-width: 520px; }

/* ---------- 滚动揭示动画 ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .split, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .feature-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .svc-list { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .section { padding: 64px 0; }
  .nav-links, .nav-cta .btn--outline { display: none; }
  .hamburger { display: flex; }
  .nav-links.open {
    display: flex;
    position: absolute;
    top: 72px; left: 0; right: 0;
    flex-direction: column;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    padding: 8px 0;
  }
  .nav-links.open a { padding: 14px 24px; }
  .hero h1 { font-size: 34px; }
  .hero { padding: 70px 0 80px; }
  .hero-stats { gap: 24px; justify-content: center; }
  .hero-stats .stat { min-width: 78px; }
  .hero-stats .stat .num { font-size: 24px; }
  .section-title { font-size: 26px; }
  .cards { grid-template-columns: 1fr; }
  .metrics { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .cta-band { padding: 36px 28px; }
  .cta-band h2 { font-size: 22px; }
  .form .row { grid-template-columns: 1fr; }
  .page-hero h1 { font-size: 30px; }
}