/* 账明白官网 · 共享样式 */
:root {
  --g1: #12b886;
  --g2: #087f5b;
  --dark1: #0b3b2e;
  --dark2: #06281f;
  --yellow: #ffd43b;
  --ink: #212529;
  --muted: #868e96;
  --bg: #f6f8f7;
  --card: #ffffff;
  --line: #e6eae8;
  --radius: 18px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--g2); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* ---------- 导航 ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; gap: 12px; height: 60px; }
.nav .logo { width: 32px; height: 32px; border-radius: 8px; }
.nav .brand { font-size: 17px; font-weight: 700; color: var(--ink); }
.nav .spacer { flex: 1; }
.nav a.link { color: var(--ink); font-size: 15px; margin-left: 22px; }
.nav a.link:hover { color: var(--g2); text-decoration: none; }
.btn {
  display: inline-block; padding: 9px 20px; border-radius: 999px;
  font-size: 15px; font-weight: 600; border: none; cursor: pointer;
}
.btn:hover { text-decoration: none; }
.btn-green { background: linear-gradient(135deg, var(--g1), var(--g2)); color: #fff; }
.btn-yellow { background: var(--yellow); color: #3b2f00; }
.btn-ghost { border: 1px solid rgba(255, 255, 255, 0.5); color: #fff; }
.btn-sm { padding: 7px 16px; font-size: 14px; }

/* ---------- 首页 Hero ---------- */
.hero {
  background: linear-gradient(160deg, var(--dark1), var(--dark2));
  color: #fff; padding: 72px 0 64px; overflow: hidden;
}
.hero .wrap { display: flex; align-items: center; gap: 56px; }
.hero-text { flex: 1.15; min-width: 0; }
.hero-text .logo-row { display: flex; align-items: center; gap: 12px; margin-bottom: 22px; }
.hero-text .logo-row img { width: 44px; height: 44px; border-radius: 11px; }
.hero-text .logo-row span { font-size: 20px; font-weight: 700; }
.hero h1 { font-size: 42px; line-height: 1.3; font-weight: 800; letter-spacing: 0.5px; }
.hero h1 em { font-style: normal; color: var(--yellow); }
.hero .sub { margin-top: 16px; font-size: 17px; color: rgba(255, 255, 255, 0.78); }
.hero .cta { margin-top: 30px; display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.hero .note { margin-top: 14px; font-size: 13px; color: rgba(255, 255, 255, 0.55); }
.hero-shot { flex: 1; text-align: center; }
.hero-shot img {
  width: 300px; margin: 0 auto; border-radius: 28px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

/* ---------- 首页区块 ---------- */
.section { padding: 72px 0; }
.section.alt { background: #fff; }
.section h2 { font-size: 30px; font-weight: 800; text-align: center; }
.section .lead { text-align: center; color: var(--muted); margin: 12px auto 44px; max-width: 640px; }

.feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feat {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px 24px;
}
.feat .ico {
  width: 44px; height: 44px; border-radius: 12px; margin-bottom: 14px;
  background: linear-gradient(135deg, var(--g1), var(--g2));
  display: flex; align-items: center; justify-content: center;
}
.feat .ico svg { width: 24px; height: 24px; stroke: #fff; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.feat h3 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
.feat p { font-size: 14px; color: var(--muted); }

.shot-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.shot-grid figure { text-align: center; }
.shot-grid img {
  border-radius: 16px; border: 1px solid var(--line);
  box-shadow: 0 10px 26px rgba(9, 44, 33, 0.1);
}
.shot-grid figcaption { margin-top: 10px; font-size: 13px; color: var(--muted); }

.band {
  background: linear-gradient(135deg, var(--g1), var(--g2));
  color: #fff; border-radius: 24px; padding: 44px 40px;
  display: flex; align-items: center; gap: 32px;
}
.band h3 { font-size: 22px; font-weight: 800; margin-bottom: 8px; }
.band p { color: rgba(255, 255, 255, 0.85); font-size: 15px; }
.band .locks { display: flex; gap: 26px; flex-shrink: 0; }
.band .lock { text-align: center; font-size: 13px; color: rgba(255, 255, 255, 0.9); }
.band .lock b { display: block; font-size: 18px; }

.download { text-align: center; }
.download .cta { margin-top: 26px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- 法律/正文页 ---------- */
.page-head {
  background: linear-gradient(160deg, var(--dark1), var(--dark2));
  color: #fff; padding: 48px 0 40px;
}
.page-head h1 { font-size: 30px; font-weight: 800; }
.page-head .meta { margin-top: 8px; font-size: 14px; color: rgba(255, 255, 255, 0.65); }

.prose { max-width: 780px; margin: 0 auto; padding: 44px 20px 72px; }
.prose h2 { font-size: 19px; font-weight: 700; margin: 34px 0 10px; }
.prose h3 { font-size: 16px; font-weight: 700; margin: 20px 0 6px; }
.prose p, .prose li { font-size: 15px; color: #3e464d; }
.prose p { margin: 8px 0; }
.prose ul, .prose ol { padding-left: 22px; margin: 8px 0; }
.prose li { margin: 4px 0; }
.prose table {
  width: 100%; border-collapse: collapse; margin: 12px 0;
  font-size: 14px; background: #fff;
}
.prose th, .prose td { border: 1px solid var(--line); padding: 9px 12px; text-align: left; vertical-align: top; }
.prose th { background: #f0f4f2; font-weight: 700; }
.prose .hl {
  background: #fff8e1; border-left: 4px solid var(--yellow);
  padding: 12px 16px; border-radius: 0 10px 10px 0; margin: 14px 0;
}
.prose .ph { color: #c92a2a; font-weight: 700; }

/* ---------- 页脚 ---------- */
.footer { background: var(--dark2); color: rgba(255, 255, 255, 0.6); padding: 34px 0 40px; font-size: 13px; }
.footer .wrap { text-align: center; }
.footer .links { margin-bottom: 12px; }
.footer .links a { color: rgba(255, 255, 255, 0.85); margin: 0 10px; }
.footer .beian { margin-top: 6px; }
.footer .beian a { color: rgba(255, 255, 255, 0.45); }

/* ---------- 响应式 ---------- */
@media (max-width: 860px) {
  .hero .wrap { flex-direction: column; text-align: center; gap: 40px; }
  .hero .cta { justify-content: center; }
  .hero-text .logo-row { justify-content: center; }
  .hero h1 { font-size: 30px; }
  .feat-grid { grid-template-columns: 1fr; }
  .shot-grid { grid-template-columns: repeat(2, 1fr); }
  .shot-grid figure:last-child { grid-column: 1 / -1; max-width: 55%; margin: 0 auto; }
  .band { flex-direction: column; text-align: center; }
  .nav a.link { display: none; }
  .nav a.link.keep { display: inline; }
}