/* ============================================================
   碰场企业站共享设计系统 · company.css
   浅色商务风 —— 色板映射 App color_tokens.dart（黑白灰主体 + 暖橘点缀），
   与深色产品站「同宗不同调」：共享 mono 小标签 / reveal 动画 / 圆角词汇。
   ============================================================ */

/* ============ 设计变量 ============ */
:root {
  /* 品牌点缀（小面积） */
  --brand: #E8833A;
  --brand-deep: #C96A24;
  --brand-bg: #FBF4EC;
  --brand-sand: #F5E6D3;
  /* 黑白灰主体 */
  --page-bg: #F3F4F6;
  --surface: #FFFFFF;
  --element-bg: #F9FAFB;
  --divider: #F0F1F3;
  --border: #E5E7EB;
  --text-1: #111827;
  --text-2: #4B5563;
  --text-3: #6B7280;
  --text-4: #9CA3AF;
  /* 语义 */
  --success: #10B981;
  --info: #3B82F6;
  /* 血统（与产品站一致） */
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Noto Sans SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;
  --shadow-card: 0 1px 3px rgba(17, 24, 39, .05);
  --shadow-lift: 0 14px 34px -12px rgba(17, 24, 39, .14);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body {
  background: var(--page-bg);
  color: var(--text-1);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  line-height: 1.6;
}
::selection { background: rgba(232, 131, 58, .22); }
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--page-bg); }
::-webkit-scrollbar-thumb { background: var(--brand-sand); border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: var(--brand); }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

/* ============ 导航 ============ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px clamp(20px, 5vw, 56px);
  transition: background .45s ease, backdrop-filter .45s ease, padding .45s ease, border-color .45s ease, box-shadow .45s ease;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  padding: 10px clamp(20px, 5vw, 56px);
  background: rgba(255, 255, 255, .78);
  backdrop-filter: blur(18px) saturate(1.5);
  -webkit-backdrop-filter: blur(18px) saturate(1.5);
  border-bottom-color: var(--divider);
  box-shadow: 0 1px 12px rgba(17, 24, 39, .04);
}
.nav-logo { display: flex; align-items: center; gap: 10px; }
.nav-logo img { height: 32px; width: 32px; }
.nav-logo span {
  font-family: var(--mono); font-size: 10px; letter-spacing: .3em;
  color: var(--text-3); text-transform: uppercase;
  border-left: 1px solid var(--border); padding-left: 10px;
}
.nav-links { display: flex; align-items: center; gap: clamp(16px, 2.6vw, 34px); }
.nav-links a {
  font-size: 14px; color: var(--text-2); letter-spacing: .06em;
  position: relative; transition: color .3s;
  padding: 4px 0;
}
.nav-links a::after {
  content: ""; position: absolute; left: 50%; bottom: -2px;
  width: 18px; height: 2px; border-radius: 2px; background: var(--brand);
  transform: translateX(-50%) scaleX(0); transition: transform .4s var(--ease-out);
}
.nav-links a:hover { color: var(--text-1); }
.nav-links a:hover::after { transform: translateX(-50%) scaleX(1); }
.nav-links a.active { color: var(--text-1); font-weight: 600; }
.nav-links a.active::after { transform: translateX(-50%) scaleX(1); }
.nav-cta {
  font-size: 13px; padding: 9px 20px; border-radius: 99px;
  background: var(--brand); color: #FFF7F0; letter-spacing: .06em;
  transition: transform .35s var(--ease-out), box-shadow .35s, background .3s;
  box-shadow: 0 4px 14px -4px rgba(232, 131, 58, .5);
  white-space: nowrap;
}
.nav-cta:hover { background: var(--brand-deep); transform: translateY(-1px); box-shadow: 0 8px 20px -6px rgba(232, 131, 58, .55); }

/* ============ Hero（首页） ============ */
.hero {
  position: relative;
  padding: clamp(150px, 20vw, 210px) clamp(20px, 6vw, 72px) clamp(70px, 9vw, 110px);
  background:
    radial-gradient(ellipse 70% 50% at 50% -10%, var(--brand-bg), transparent 70%),
    var(--page-bg);
  overflow: hidden;
}
.hero .wrap { position: relative; }
.hero-tag {
  font-family: var(--mono); font-size: 11px; letter-spacing: .4em;
  color: var(--text-3); text-transform: uppercase;
  display: flex; align-items: center; gap: 14px;
}
.hero-tag::before { content: ""; width: 34px; height: 1px; background: var(--brand); }
.hero h1 {
  margin-top: 26px;
  font-size: clamp(34px, 6vw, 62px); font-weight: 700; letter-spacing: .03em; line-height: 1.2;
}
.hero-slogan {
  margin-top: 18px;
  font-size: clamp(20px, 3.2vw, 32px); font-weight: 600; letter-spacing: .05em;
  color: var(--brand);
}
.hero-sub {
  margin-top: 18px; max-width: 620px;
  color: var(--text-2); font-size: 15.5px; letter-spacing: .03em;
}
.hero-actions { margin-top: 36px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero-facts {
  margin-top: clamp(44px, 6vw, 64px);
  display: flex; flex-wrap: wrap; gap: 0;
  border-top: 1px solid var(--border);
}
.hero-facts .hf {
  padding: 20px 28px 4px 0; margin-right: 28px;
  display: flex; flex-direction: column; gap: 2px;
}
.hero-facts .hf b { font-size: 16px; letter-spacing: .04em; }
.hero-facts .hf span { font-family: var(--mono); font-size: 10.5px; letter-spacing: .22em; color: var(--text-4); text-transform: uppercase; }

/* ============ 子页页头 ============ */
.page-head {
  padding: clamp(140px, 18vw, 180px) clamp(20px, 6vw, 72px) clamp(40px, 6vw, 60px);
  background:
    radial-gradient(ellipse 70% 50% at 50% -20%, var(--brand-bg), transparent 70%),
    var(--page-bg);
}
.page-head h1 { margin-top: 22px; font-size: clamp(30px, 5vw, 48px); font-weight: 700; letter-spacing: .04em; }
.page-head .sub { margin-top: 14px; color: var(--text-2); font-size: 15px; max-width: 640px; letter-spacing: .04em; }

/* ============ 通用 Section ============ */
section { padding: clamp(64px, 9vw, 110px) clamp(20px, 6vw, 72px); position: relative; }
.wrap { max-width: 1180px; margin: 0 auto; }
.sec-label {
  font-family: var(--mono); font-size: 11px; letter-spacing: .45em; color: var(--text-3);
  text-transform: uppercase; display: flex; align-items: center; gap: 14px; margin-bottom: 20px;
}
.sec-label::before { content: ""; width: 34px; height: 1px; background: var(--brand); }
.sec-title { font-size: clamp(26px, 4.2vw, 42px); font-weight: 700; letter-spacing: .04em; line-height: 1.3; }
.sec-title em { font-style: normal; color: var(--brand); }
.sec-sub { margin-top: 14px; color: var(--text-2); font-size: 15px; max-width: 600px; letter-spacing: .04em; }

/* 滚动 reveal（与产品站同一段逻辑） */
.reveal { opacity: 0; transform: translateY(38px); transition: opacity 1s var(--ease-out), transform 1s var(--ease-out); transition-delay: var(--d, 0s); }
.reveal.in { opacity: 1; transform: none; }

/* ============ 卡片 ============ */
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 20px;
  box-shadow: var(--shadow-card);
  transition: transform .5s var(--ease-out), box-shadow .5s, border-color .5s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); border-color: var(--brand-sand); }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }

/* ============ 事实条目（fact-grid） ============ */
.fact-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.fact {
  background: var(--surface); border: 1px solid var(--border); border-radius: 16px;
  padding: 20px 22px; box-shadow: var(--shadow-card);
  transition: border-color .4s, transform .5s var(--ease-out);
}
.fact:hover { border-color: var(--brand-sand); transform: translateY(-2px); }
.fact .k { font-family: var(--mono); font-size: 10.5px; letter-spacing: .24em; color: var(--text-4); text-transform: uppercase; }
.fact .v { margin-top: 8px; font-size: 16px; font-weight: 600; letter-spacing: .03em; color: var(--text-1); word-break: break-all; }
.fact .v small { display: block; margin-top: 3px; font-size: 12px; font-weight: 400; color: var(--text-3); letter-spacing: .04em; }

/* ============ 状态徽章 ============ */
.badge {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 12px; letter-spacing: .1em; padding: 5px 13px; border-radius: 99px;
  white-space: nowrap;
}
.badge::before { content: ""; width: 7px; height: 7px; border-radius: 50%; }
.badge-ok { background: rgba(16, 185, 129, .08); color: #0B8A63; border: 1px solid rgba(16, 185, 129, .22); }
.badge-ok::before { background: var(--success); }
.badge-pending { background: var(--element-bg); color: var(--text-3); border: 1px solid var(--border); }
.badge-pending::before { background: var(--text-4); }

/* ============ 按钮 ============ */
.btn-primary, .btn-ghost {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; letter-spacing: .08em; padding: 13px 30px; border-radius: 99px;
  transition: transform .4s var(--ease-out), box-shadow .4s, background .3s, border-color .3s;
}
.btn-primary {
  background: var(--brand); color: #FFF7F0;
  box-shadow: 0 6px 18px -6px rgba(232, 131, 58, .55);
}
.btn-primary:hover { background: var(--brand-deep); transform: translateY(-2px); box-shadow: 0 12px 26px -8px rgba(232, 131, 58, .6); }
.btn-ghost { border: 1px solid var(--border); color: var(--text-1); background: var(--surface); }
.btn-ghost:hover { border-color: var(--brand); color: var(--brand); transform: translateY(-2px); }

/* ============ 词条 chips ============ */
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  font-size: 13px; letter-spacing: .06em; color: var(--text-2);
  background: var(--surface); border: 1px solid var(--border); border-radius: 99px;
  padding: 8px 18px;
  transition: border-color .3s, color .3s, transform .4s var(--ease-out);
}
.chip:hover { border-color: var(--brand); color: var(--brand); transform: translateY(-2px); }

/* ============ 提示条（NOTE） ============ */
.note {
  background: var(--brand-bg); border: 1px solid var(--brand-sand); border-radius: 16px;
  padding: 20px 24px; color: var(--text-2); font-size: 13.5px; letter-spacing: .03em;
  display: flex; gap: 12px; align-items: flex-start;
}
.note::before { content: "i"; flex: none; width: 20px; height: 20px; border-radius: 50%; background: var(--brand); color: #FFF7F0; font-family: var(--mono); font-size: 12px; display: flex; align-items: center; justify-content: center; margin-top: 1px; }

/* ============ 页脚 ============ */
.footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  padding: clamp(40px, 6vw, 64px) clamp(20px, 6vw, 72px) 40px;
  text-align: center;
}
.footer .f-brand { display: flex; align-items: center; justify-content: center; gap: 10px; }
.footer .f-brand img { height: 28px; width: 28px; }
.footer .f-brand b { font-size: 16px; letter-spacing: .18em; font-weight: 700; color: var(--text-1); }
.footer .f-links {
  margin-top: 22px;
  display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 26px;
}
.footer .f-links a { font-size: 13px; color: var(--text-2); letter-spacing: .05em; transition: color .3s; }
.footer .f-links a:hover { color: var(--brand); }
.footer .f-sep { color: var(--border); user-select: none; }
.footer .f-legal {
  margin-top: 20px; font-size: 12.5px; color: var(--text-3); letter-spacing: .04em;
}
.footer .f-legal .mono { font-family: var(--mono); letter-spacing: .08em; }
.footer .f-lic {
  margin-top: 8px; font-size: 12px; color: var(--text-4); letter-spacing: .04em;
}
.footer .f-cr {
  margin-top: 18px;
  display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 6px 14px;
  font-size: 12px; color: var(--text-4); letter-spacing: .08em;
}
/* 公安备案：图标+编号同一锚点内联成组，字号/颜色/字距完全继承 f-cr */
.footer .f-cr a {
  display: inline-flex; align-items: center; gap: 5px; white-space: nowrap;
  color: inherit; font-size: inherit; letter-spacing: inherit; text-decoration: none;
  transition: color .3s;
}
.footer .f-cr a:hover { color: var(--text-2); }
.footer .f-cr a img { height: 13px; width: auto; display: block; }

/* ============ 响应式 ============ */
@media (max-width: 960px) {
  .nav-links { display: none; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4, .fact-grid { grid-template-columns: 1fr; }
  .hero-facts .hf { padding-right: 18px; margin-right: 18px; }
  .nav-logo span { display: none; }
}

/* ============ 减少动态 ============ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}