/* ================================================================
   策路通官网 — 共享样式
   设计语言源自小程序「策路通 Brand Design System v2」
   主色深海军蓝 | 强调青绿 | 冷灰中性色 | 卡片+竖线标记 | 状态彩点
   ================================================================ */
:root {
  --p50:#eef2f7; --p100:#d4dde9; --p200:#a9bbd3; --p300:#7e99bd;
  --p400:#5377a7; --p500:#2c5282; --p600:#244a6e; --p700:#1c3a56; --p800:#142b40; --p900:#0c1c2b;
  --n0:#ffffff; --n50:#f7f8fa; --n100:#eef0f4; --n200:#dde2ea; --n300:#c5cdd9;
  --n400:#9aa5b4; --n500:#717e90; --n600:#5a6577; --n700:#464f5e; --n800:#353c48; --n900:#242932;
  --success:#2d8a56; --success-light:#e6f4ec;
  --warning:#b87d1e; --warning-light:#fdf5e6;
  --error:#c53030; --error-light:#fde8e8;
  --info:#2b6cb0; --info-light:#ebf4ff;
  --teal:#2c7a7b; --teal-light:#e6fffa;
  --r-sm:8px; --r-md:16px; --r-lg:24px; --r-xl:32px;
  --shadow-sm:0 2px 8px rgba(20,43,64,0.04);
  --shadow-md:0 8px 24px rgba(20,43,64,0.08);
  --shadow-lg:0 24px 64px rgba(20,43,64,0.12);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Helvetica Neue",Helvetica,Arial,sans-serif;
}

* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior:auto; }
}
body {
  font-family:var(--font); background:var(--n50); color:var(--n900);
  line-height:1.7; -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
}
a { color:inherit; text-decoration:none; }
img { max-width:100%; display:block; }
.wrap { max-width:1160px; margin:0 auto; padding:0 24px; }
section { position:relative; }

/* ---------- 通用标题 ---------- */
.sec-head { text-align:center; margin-bottom:56px; }
.sec-kicker {
  display:inline-flex; align-items:center; gap:8px; font-size:13px; font-weight:600;
  letter-spacing:.08em; color:var(--teal); background:var(--teal-light);
  border-radius:999px; padding:6px 16px; margin-bottom:16px;
}
.sec-kicker::before { content:''; width:6px; height:6px; border-radius:50%; background:var(--teal); }
.sec-title { font-size:34px; font-weight:700; letter-spacing:-.02em; color:var(--n900); line-height:1.3; }
.sec-sub { margin-top:14px; font-size:17px; color:var(--n600); max-width:640px; margin-left:auto; margin-right:auto; }

/* ---------- 滚动淡入 ---------- */
.reveal { opacity:0; transition:opacity .65s ease; }
.reveal.in { opacity:1; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity:1; transition:none; } }

/* ---------- 按钮 ---------- */
.btn-primary {
  background:linear-gradient(135deg,#2c7a7b,#3a9e8a); color:#fff; font-size:16px; font-weight:700;
  padding:14px 30px; border-radius:14px; border:none; cursor:pointer;
  transition:.18s; display:inline-flex; align-items:center; justify-content:center;
  box-shadow:0 6px 18px rgba(44,122,123,.28);
}
.btn-primary:hover { background:linear-gradient(135deg,#226465,#2f8877); transform:translateY(-2px); box-shadow:0 10px 26px rgba(44,122,123,.34); }
.btn-ghost-light {
  background:transparent; color:#fff; font-size:15px; font-weight:600; padding:14px 26px;
  border-radius:14px; border:1px solid rgba(255,255,255,.35); cursor:pointer; transition:.18s;
}
.btn-ghost-light:hover { background:rgba(255,255,255,.1); }
.btn-ghost {
  background:var(--n0); color:var(--p600); font-size:15px; font-weight:600; padding:13px 26px;
  border-radius:14px; border:1px solid var(--n200); cursor:pointer; transition:.18s;
  display:inline-flex; align-items:center; justify-content:center;
}
.btn-ghost:hover { border-color:var(--p200); color:var(--p700); }

/* ---------- 顶部导航 ---------- */
/* 默认态：深色半透明毛玻璃 + 白色文字（无论下层颜色，白字始终清晰） */
.nav { position:sticky; top:0; z-index:100; background:rgba(16,32,48,.42); backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px); border-bottom:1px solid rgba(255,255,255,.08); transition:background .3s, border-color .3s; }
.brand-name { color:#fff; }
.brand-name small { color:rgba(255,255,255,.6); }
.nav-links a { color:rgba(255,255,255,.85); }
.nav-links a:hover { background:rgba(255,255,255,.14); color:#fff; }
.nav-links a.active { color:#fff; background:rgba(255,255,255,.18); }
.nav-burger span { background:#fff; }

/* 滚动到白色内容区：恢复浅灰背景 + 深色文字 */
.nav.nav-light { background:rgba(247,248,250,.92); backdrop-filter:blur(12px); border-bottom-color:var(--n100); }
.nav.nav-light .brand-name { color:var(--p700); }
.nav.nav-light .brand-name small { color:var(--n500); }
.nav.nav-light .nav-links a { color:var(--n700); }
.nav.nav-light .nav-links a:hover { background:var(--p50); color:var(--p600); }
.nav.nav-light .nav-links a.active { color:var(--p600); background:var(--p50); }
.nav.nav-light .nav-burger span { background:var(--p700); }
.nav.nav-light .nav-cta { background:linear-gradient(135deg,#2c7a7b,#3a9e8a); color:#fff; border:none; box-shadow:0 2px 8px rgba(44,122,123,.2); transform:none; }
/* 移动端展开菜单：始终白色面板 + 深色文字 */
.nav.menu-open { background:#fff; border-bottom-color:var(--n100); }
.nav.menu-open .brand-name { color:var(--p700); }
.nav.menu-open .brand-name small { color:var(--n500); }
.nav.menu-open .nav-links a { color:var(--n700); }
.nav.menu-open .nav-links a:hover { background:var(--p50); color:var(--p600); }
.nav.menu-open .nav-links a.active { color:var(--p600); background:var(--p50); }
.nav.menu-open .nav-burger span { background:var(--p700); }
.nav.menu-open .nav-cta { background:linear-gradient(135deg,#2c7a7b,#3a9e8a); color:#fff; border:none; box-shadow:0 2px 8px rgba(44,122,123,.2); }
.nav-inner { display:flex; align-items:center; height:72px; }
.brand { display:flex; align-items:center; gap:12px; }
.brand-mark { width:38px; height:38px; border-radius:11px; overflow:hidden; box-shadow:var(--shadow-sm); flex-shrink:0; }
.brand-mark img { width:100%; height:100%; object-fit:cover; }
.brand-name { font-size:20px; font-weight:700; letter-spacing:.01em; }
.brand-name small { font-weight:500; font-size:13px; margin-left:8px; }
.nav-links { margin-left:auto; display:flex; align-items:center; gap:6px; list-style:none; }
.nav-links li { display:flex; }
.nav-links a { font-size:15px; font-weight:500; padding:8px 14px; border-radius:10px; transition:.16s; }
.nav-cta { margin-left:14px; background:linear-gradient(135deg,#2c7a7b,#3a9e8a); color:#fff; font-size:15px; font-weight:600; padding:10px 20px; border-radius:12px; border:none; transition:.16s; white-space:nowrap; box-shadow:0 2px 10px rgba(0,0,0,.25); }
.nav-cta:hover { background:linear-gradient(135deg,#226465,#2f8877); box-shadow:0 4px 14px rgba(0,0,0,.32); transform:translateY(-1px); }
.nav-burger { display:none; margin-left:auto; background:none; border:none; cursor:pointer; padding:8px; }
.nav-burger span { display:block; width:22px; height:2px; border-radius:2px; margin:5px 0; }

/* ---------- 页内 Hero（次级页顶部） ---------- */
.page-hero {
  background:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(150deg,#244a6e 0%,#1c3a56 55%,#142b40 100%);
  background-size: 44px 44px, 44px 44px, auto;
  color:#fff; padding:76px 0 88px; position:relative; overflow:hidden;
}
.page-hero::before { content:''; position:absolute; top:0; left:0; right:0; height:120px; background:linear-gradient(180deg,rgba(255,255,255,.06),transparent); pointer-events:none; }
.page-hero::after { content:''; position:absolute; right:-120px; top:-90px; width:360px; height:360px; border-radius:50%; background:radial-gradient(circle,rgba(44,122,123,.3),transparent 70%); pointer-events:none; }
.page-hero .wrap { position:relative; z-index:1; }
.page-hero-crumb { font-size:13px; color:rgba(255,255,255,.6); margin-bottom:14px; }
.page-hero-crumb a { color:rgba(255,255,255,.75); }
.page-hero-crumb a:hover { color:#fff; }
.page-hero-title { font-size:40px; font-weight:700; letter-spacing:-.02em; line-height:1.25; }
.page-hero-title em { font-style:normal; color:#7fd0b8; }
.page-hero-desc { margin-top:14px; font-size:17px; color:rgba(255,255,255,.82); max-width:560px; }

/* ---------- 底部 CTA ---------- */
.bot-cta { padding:88px 0 0; }
.bot-card {
  max-width:820px; margin:0 auto; background:linear-gradient(150deg,#244a6e,#1c3a56 55%,#142b40);
  border-radius:var(--r-xl); padding:48px 44px; position:relative; overflow:hidden; text-align:center;
}
.bot-card::before { content:''; position:absolute; top:0; left:0; right:0; height:120px; background:linear-gradient(180deg,rgba(255,255,255,.06),transparent); }
.bot-title { position:relative; font-size:28px; font-weight:700; color:#fff; }
.bot-title em { font-style:normal; color:#7fd0b8; }
.bot-desc { position:relative; margin-top:14px; font-size:15px; color:rgba(255,255,255,.85); }
.bot-actions { position:relative; margin-top:30px; display:flex; gap:16px; justify-content:center; flex-wrap:wrap; }

/* ---------- 底部 ---------- */
.footer { background:var(--p800); color:rgba(255,255,255,.7); padding:56px 0 32px; margin-top:96px; }
.footer-grid { display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:32px; }
.footer-brand { display:flex; align-items:center; gap:12px; margin-bottom:16px; }
.footer-brand .brand-mark { width:40px; height:40px; border-radius:12px; overflow:hidden; }
.footer-brand .name { font-size:19px; font-weight:700; color:#fff; }
.footer-desc { font-size:14px; line-height:1.8; max-width:360px; }
.footer h4 { color:#fff; font-size:15px; font-weight:600; margin-bottom:16px; }
.footer-links a { display:block; font-size:14px; padding:6px 0; color:rgba(255,255,255,.7); transition:.16s; }
.footer-links a:hover { color:#fff; }
.footer-bottom { margin-top:40px; padding-top:24px; border-top:1px solid rgba(255,255,255,.1); display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px; font-size:13px; color:rgba(255,255,255,.5); }
.footer-bottom a { color:rgba(255,255,255,.6); transition:color .16s; white-space:nowrap; }
.footer-bottom a:hover { color:#fff; }

/* ---------- 响应式 ---------- */
@media (max-width:960px) {
  .page-hero-title { font-size:32px; }
  .footer-grid { grid-template-columns:1fr 1fr; }
  .nav-links { display:none; }
  .nav-burger { display:block; }
  /* 移动端展开菜单：白色下拉面板（由 common.js 切换 .menu-open） */
  .nav.menu-open .nav-links {
    display:flex; flex-direction:column; position:absolute; top:calc(100% + 6px);
    left:18px; right:18px; margin-left:0; background:#fff;
    border:1px solid var(--n100); border-radius:16px; padding:10px;
    box-shadow:var(--shadow-md); gap:2px; z-index:99;
  }
  .nav.menu-open .nav-links li { display:block; }
  .nav.menu-open .nav-links a { color:var(--n700); padding:12px 14px; border-radius:10px; }
  .nav.menu-open .nav-links a:hover { background:var(--p50); color:var(--p600); }
  .nav.menu-open .nav-links a.active { color:var(--p600); background:var(--p50); }
  .nav.menu-open .nav-links .nav-cta {
    margin-left:0; margin-top:6px; text-align:center;
    background:linear-gradient(135deg,#2c7a7b,#3a9e8a); color:#fff; border:none;
    box-shadow:0 2px 8px rgba(44,122,123,.2);
  }
}
@media (max-width:620px) {
  .wrap { padding:0 18px; }
  .sec-title { font-size:27px; }
  .page-hero { padding:56px 0; }
  .page-hero-title { font-size:28px; }
  .bot-card { padding:36px 24px; }
  .footer-grid { grid-template-columns:1fr; }
}

/* ---------- 小程序码（CTA 区） ---------- */
.qr-box { background:#fff; border-radius:16px; padding:14px; box-shadow:0 10px 30px rgba(20,43,64,.28); width:180px; }
.qr-img { display:block; width:152px; height:152px; border-radius:10px; }
.qr-fallback {
  width:152px; height:152px; display:flex; flex-direction:column; align-items:center;
  justify-content:center; background:#f8fafc; border-radius:10px;
  text-align:center; color:#374151; font-size:14px; line-height:1.7;
}
.qr-fallback-ico { width:34px; height:34px; margin-bottom:10px; border-radius:50%; background:linear-gradient(135deg,#2c7a7b,#3a9e8a); position:relative; }
.qr-fallback-ico::after { content:''; position:absolute; right:-7px; top:-7px; width:12px; height:12px; border:2px solid #fff; border-radius:50%; }
.qr-tip { margin-top:10px; font-size:13px; color:rgba(255,255,255,.7); line-height:1.7; }

/* ---------- 无 JS 兜底导航 ---------- */
.nojs-nav { background:rgba(16,32,48,.92); }
.nojs-nav .nav-links { display:flex; flex-wrap:wrap; gap:4px; margin:0; }
.nojs-nav .nav-links a { color:rgba(255,255,255,.85); padding:6px 12px; border-radius:8px; }
.nojs-footer { background:var(--p800); color:rgba(255,255,255,.7); padding:28px 0; text-align:center; font-size:13px; margin-top:96px; }
@media (max-width:960px) {
  .nojs-nav .nav-links { display:flex; flex-wrap:wrap; }
  .nojs-nav .nav-burger { display:none; }
}
/* ---------- 键盘焦点可见性 ---------- */
:focus-visible { outline:2px solid #2c7a7b; outline-offset:2px; border-radius:4px; }
@media (hover: none) { :focus-visible { outline:none; } }