/* 汤悦云管家营销站（Spec 2026-10-15-marketing-site）：纯手写无构建，与 admin 设计语言同源
 * （墨玉茶室：墨绿 #256050 + 金 #b8863b + 米白纸底）。响应式断点对齐 admin（900/700）。 */

:root {
  --accent: #256050;
  --accent-deep: #1d4a3c;
  --side-deep: #14261f;
  --side: #1b3a2f;
  --gold: #b8863b;
  --gold-soft: rgba(184, 134, 59, 0.12);
  --bg: #f6f5f1;
  --surface: #fffefb;
  --fg: #22312b;
  --muted: #6b7a73;
  --border: #e4e4dd;
  --radius: 10px;
  --radius-lg: 16px;
  --radius-xl: 22px;
  --shadow-lg: 0 18px 50px -18px rgba(20, 38, 31, 0.25);
  --font-display: "Songti SC", "Noto Serif SC", "STSong", serif;
  --max-w: 1080px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; color: var(--fg); background: var(--bg);
  font: 15px/1.7 -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-family: var(--font-display); font-weight: 600; line-height: 1.35; color: var(--fg); }
a { color: var(--accent); text-decoration: none; }
img { max-width: 100%; display: block; }
.wrap { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

/* ============ 顶部导航 ============ */
.site-head {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 254, 251, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.site-head .wrap { display: flex; align-items: center; gap: 28px; height: 62px; }
.logo { display: flex; align-items: center; gap: 10px; color: var(--fg); font-family: var(--font-display); font-weight: 700; font-size: 17px; }
.logo-mark {
  width: 34px; height: 34px; border-radius: 10px; flex: none;
  background: linear-gradient(150deg, #d3a05c, var(--gold) 55%, #9c6f2e);
  color: #fff; display: grid; place-items: center; font-size: 17px;
  box-shadow: 0 4px 12px -4px rgba(184, 134, 59, 0.5);
}
.site-nav { display: flex; gap: 24px; margin-left: 8px; }
.site-nav a { color: var(--muted); font-size: 14.5px; font-weight: 500; }
.site-nav a:hover { color: var(--accent); }
.head-cta { margin-left: auto; display: flex; gap: 10px; align-items: center; }
.nav-toggle {
  display: none; margin-left: auto; border: 1px solid var(--border); background: var(--surface);
  border-radius: 8px; padding: 8px 12px; font-size: 14px; color: var(--fg); cursor: pointer;
}

/* ============ 按钮 ============ */
.btn {
  display: inline-block; border-radius: 999px; font-weight: 600; font-size: 15px;
  padding: 12px 28px; border: 1px solid transparent; cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(150deg, #2e6f5c, var(--accent) 55%, var(--accent-deep));
  color: #fff; box-shadow: 0 10px 24px -10px rgba(37, 96, 80, 0.6);
}
.btn-ghost { border-color: var(--border); color: var(--fg); background: var(--surface); }
.btn-sm { padding: 8px 18px; font-size: 13.5px; }
.btn-gold { background: linear-gradient(150deg, #d3a05c, var(--gold) 60%, #9c6f2e); color: #fff; }

/* ============ Hero ============ */
.hero {
  background:
    radial-gradient(680px 420px at 15% -10%, rgba(184, 134, 59, 0.16), transparent 60%),
    radial-gradient(760px 520px at 90% 110%, rgba(46, 104, 84, 0.5), transparent 65%),
    linear-gradient(160deg, var(--side-deep), var(--side) 55%, #1c4235);
  color: #e8f0ec;
  padding: 84px 0 0;
  overflow: hidden;
}
.hero .wrap { display: grid; grid-template-columns: 5fr 6fr; gap: 48px; align-items: center; }
.hero h1 { color: #f6f1e4; font-size: 40px; margin: 0 0 18px; letter-spacing: 1px; }
.hero h1 .gold { color: #dcb26b; }
.hero p.sub { color: #a9c0b5; font-size: 17px; margin: 0 0 30px; }
.hero .cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 34px; }
.hero .points { display: flex; gap: 22px; flex-wrap: wrap; color: #9db5aa; font-size: 13.5px; }
.hero .points span::before { content: "✓ "; color: var(--gold); }
.hero-shot {
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  box-shadow: 0 -18px 60px -20px rgba(0, 0, 0, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.14); border-bottom: none;
  margin-bottom: -1px;
}

/* ============ 通用区块 ============ */
.section { padding: 76px 0; }
.section.tint { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.kicker { color: var(--gold); font-size: 13.5px; font-weight: 600; letter-spacing: 2px; margin: 0 0 10px; }
.section h2 { font-size: 30px; margin: 0 0 14px; }
.section .lead { color: var(--muted); font-size: 16px; margin: 0 0 40px; max-width: 640px; }

/* 能力卡 */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 26px 22px; transition: transform 0.15s, box-shadow 0.15s;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.card .ico { font-size: 26px; margin-bottom: 12px; }
.card h3 { font-size: 17px; margin: 0 0 8px; }
.card p { color: var(--muted); font-size: 13.5px; margin: 0; }

/* 截图展示 */
.shot-block { margin-top: 28px; }
.shot-block img { border-radius: var(--radius-lg); border: 1px solid var(--border); box-shadow: var(--shadow-lg); width: 100%; }
.shot-block figcaption { text-align: center; color: var(--muted); font-size: 13px; margin-top: 12px; }
.shot-duo { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

/* 步骤 */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; counter-reset: step; }
.step { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 26px 22px; position: relative; }
.step::before {
  counter-increment: step; content: counter(step);
  width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center;
  background: var(--gold-soft); color: var(--gold); font-weight: 700; font-size: 16px;
  font-family: var(--font-display); margin-bottom: 14px;
}
.step h3 { font-size: 16.5px; margin: 0 0 8px; }
.step p { color: var(--muted); font-size: 13.5px; margin: 0; }

/* ============ 价格 ============ */
.pricing { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; align-items: stretch; }
.plan-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 26px 22px; display: flex; flex-direction: column; position: relative;
}
.plan-card.hot { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset, var(--shadow-lg); }
.plan-card .tag {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--gold); color: #fff; font-size: 12px; font-weight: 600;
  padding: 3px 14px; border-radius: 999px; white-space: nowrap;
}
.plan-card h3 { font-size: 18px; margin: 0; }
.plan-card .price { font-family: var(--font-display); font-size: 34px; font-weight: 700; margin: 14px 0 2px; }
.plan-card .price small { font-size: 13px; color: var(--muted); font-weight: 400; }
.plan-card .list-price { color: var(--muted); font-size: 13px; text-decoration: line-through; }
.plan-card ul { list-style: none; padding: 0; margin: 18px 0 22px; flex: 1; }
.plan-card li { font-size: 13.5px; padding: 5px 0; color: var(--fg); }
.plan-card li::before { content: "✓ "; color: var(--accent); font-weight: 700; }
.plan-card li.off { color: var(--muted); }
.plan-card li.off::before { content: "— "; color: var(--muted); }
.price-note { color: var(--muted); font-size: 12.5px; margin-top: 22px; text-align: center; }

/* ============ FAQ ============ */
.faq { max-width: 760px; }
.faq details { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 20px; margin-bottom: 12px; }
.faq summary { font-weight: 600; cursor: pointer; font-size: 15px; }
.faq details p { color: var(--muted); font-size: 14px; margin: 10px 0 0; }

/* ============ CTA 横幅 ============ */
.cta-band {
  background: linear-gradient(160deg, var(--side-deep), var(--side) 60%, #1c4235);
  color: #e8f0ec; text-align: center; padding: 70px 0;
}
.cta-band h2 { color: #f6f1e4; font-size: 30px; margin: 0 0 12px; }
.cta-band p { color: #a9c0b5; margin: 0 0 30px; }
.cta-band .cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ============ 页脚 ============ */
.site-foot { background: #101f19; color: #8ba398; padding: 48px 0 30px; font-size: 13.5px; }
.site-foot .cols { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 34px; }
.site-foot h4 { color: #cfdcd5; font-size: 14px; margin: 0 0 12px; }
.site-foot a { color: #8ba398; display: block; padding: 3px 0; }
.site-foot a:hover { color: #dcb26b; }
.site-foot .brand-line { display: flex; align-items: center; gap: 10px; color: #e8f0ec; font-family: var(--font-display); font-weight: 700; font-size: 16px; margin-bottom: 12px; }
.foot-base { border-top: 1px solid rgba(255, 255, 255, 0.08); padding-top: 22px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.foot-base a { display: inline; }

/* 微信二维码弹层 */
.wx-mask { display: none; position: fixed; inset: 0; z-index: 100; background: rgba(16, 32, 26, 0.55); place-items: center; }
.wx-mask.open { display: grid; }
.wx-pop { background: var(--surface); border-radius: var(--radius-lg); padding: 26px; text-align: center; max-width: 320px; }
.wx-pop img { width: 220px; height: 220px; object-fit: contain; border-radius: 8px; border: 1px solid var(--border); margin: 0 auto; }
.wx-pop p { color: var(--muted); font-size: 13px; margin: 12px 0 0; }
.wx-pop .close { margin-top: 14px; }

/* ============ 响应式 ============ */
@media (max-width: 900px) {
  .site-nav {
    display: none; position: absolute; top: 62px; left: 0; right: 0;
    background: var(--surface); border-bottom: 1px solid var(--border);
    flex-direction: column; gap: 0; padding: 8px 24px 16px;
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 10px 0; border-bottom: 1px dashed var(--border); }
  .nav-toggle { display: block; }
  .head-cta .btn-ghost { display: none; }
  .hero .wrap { grid-template-columns: 1fr; gap: 34px; }
  .hero { padding-top: 56px; }
  .hero h1 { font-size: 30px; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .pricing { grid-template-columns: repeat(2, 1fr); gap: 22px; }
  .steps { grid-template-columns: 1fr; }
  .site-foot .cols { grid-template-columns: 1fr 1fr; }
  .shot-duo { grid-template-columns: 1fr; }
}
@media (max-width: 700px) {
  .cards, .pricing { grid-template-columns: 1fr; }
  .section { padding: 54px 0; }
  .hero h1 { font-size: 26px; }
}