/* 观星旅游攻略 · 主站样式 v2（2026-09-26 改版）
   设计语言：星夜观星风
   - 首页（body.home）：深蓝夜空 + 星点 + 琥珀金强调色，品牌视觉化
   - 攻略内页：浅色纸白变体，夜空元素只出现在头部横幅与强调色上
   无框架、无外部依赖、无内联样式，系统字体栈，离线可用 */

:root {
  --night: #0b1128;
  --night-2: #121b3c;
  --night-line: #232d55;
  --star: #a9b2d4;
  --star-bright: #e9ebf5;
  --gold: #e8b84b;
  --gold-deep: #b07c10;
  --paper: #fbfaf7;
  --ink: #1d1c24;
  --muted: #6e6d7c;
  --line: #e9e7f0;
  --navy: #16224c;
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
}

body.home {
  background: var(--night);
  color: var(--star-bright);
}

a { color: inherit; text-decoration: none; }

/* ---------- 顶栏 ---------- */
.topbar {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  max-width: 1080px;
  margin: 0 auto;
  padding: 28px 24px 20px;
}
.brand {
  font-family: var(--serif);
  font-size: 18px;
  letter-spacing: 0.35em;
  font-weight: 600;
  color: var(--navy);
}
.topbar nav { display: flex; gap: 28px; font-size: 13px; color: var(--muted); letter-spacing: 0.2em; }
.topbar nav a:hover { color: var(--ink); }
body.home .brand { color: var(--star-bright); }
body.home .topbar nav { color: var(--star); }
body.home .topbar nav a:hover { color: var(--gold); }

/* ---------- 首页 Hero：星夜 ---------- */
.hero {
  position: relative;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}
.hero-sky {
  position: relative;
  overflow: hidden;
  background: radial-gradient(ellipse at 78% 18%, #17224a 0%, var(--night) 55%);
  border: 1px solid var(--night-line);
  border-radius: 18px;
  min-height: 460px;
  padding: 96px 56px 88px;
}
.moon {
  position: absolute;
  top: 64px;
  right: 72px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #f5e9c8;
  box-shadow: 0 0 0 10px rgba(245, 233, 200, 0.07), 0 0 46px 14px rgba(245, 233, 200, 0.18);
}
.stars, .stars2 {
  position: absolute;
  top: 0; left: 0;
  width: 2px; height: 2px;
  border-radius: 50%;
  background: transparent;
}
.stars {
  box-shadow:
    110px 70px 0 0 rgba(255,255,255,0.9), 240px 150px 0 0 rgba(255,255,255,0.55),
    360px 60px 0 0 rgba(255,255,255,0.75), 470px 180px 0 0 rgba(232,184,75,0.9),
    590px 90px 0 0 rgba(255,255,255,0.6), 660px 220px 0 0 rgba(255,255,255,0.85),
    760px 40px 0 0 rgba(255,255,255,0.5), 880px 160px 0 0 rgba(255,255,255,0.8),
    950px 260px 0 0 rgba(169,242,214,0.8), 180px 260px 0 0 rgba(255,255,255,0.5),
    60px 180px 0 0 rgba(255,255,255,0.7), 320px 320px 0 0 rgba(255,255,255,0.45),
    540px 300px 0 0 rgba(255,255,255,0.6), 830px 320px 0 0 rgba(255,255,255,0.5),
    1000px 120px 0 0 rgba(255,255,255,0.65), 420px 100px 0 0 rgba(255,255,255,0.4);
}
.stars2 {
  box-shadow:
    160px 120px 0 0 rgba(255,255,255,0.35), 280px 40px 0 0 rgba(255,255,255,0.3),
    400px 240px 0 0 rgba(255,255,255,0.3), 520px 140px 0 0 rgba(255,255,255,0.35),
    640px 60px 0 0 rgba(255,255,255,0.3), 720px 180px 0 0 rgba(255,255,255,0.35),
    840px 90px 0 0 rgba(255,255,255,0.3), 920px 210px 0 0 rgba(255,255,255,0.3),
    1000px 300px 0 0 rgba(255,255,255,0.3), 100px 300px 0 0 rgba(255,255,255,0.3),
    220px 340px 0 0 rgba(255,255,255,0.25), 700px 340px 0 0 rgba(255,255,255,0.25),
    60px 60px 0 0 rgba(255,255,255,0.4), 960px 50px 0 0 rgba(255,255,255,0.35);
}
.hero-text { position: relative; z-index: 1; max-width: 640px; }
.hero-kicker { font-size: 12px; letter-spacing: 0.5em; color: var(--gold); margin-bottom: 16px; }
.hero-title {
  font-family: var(--serif);
  font-size: clamp(30px, 4.6vw, 50px);
  font-weight: 600;
  line-height: 1.3;
  color: #fff;
}
.hero-sub { margin-top: 16px; font-size: 14.5px; color: var(--star); letter-spacing: 0.06em; }
.hero-cta { margin-top: 30px; display: flex; gap: 14px; flex-wrap: wrap; }
.btn-gold {
  display: inline-block;
  background: var(--gold);
  color: #171207;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 12px 30px;
  border-radius: 999px;
  transition: background 0.2s ease;
}
.btn-gold:hover { background: #f2c96a; }
.btn-ghost {
  display: inline-block;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--star-bright);
  font-size: 14.5px;
  letter-spacing: 0.08em;
  padding: 12px 30px;
  border-radius: 999px;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }

/* hero 内：示例方案 vs 小程序生成 对比 */
.hero-compare { margin-top: 28px; display: grid; gap: 10px; max-width: 640px; }
.cmp-row {
  display: flex; gap: 12px; align-items: baseline;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 10px;
  padding: 10px 16px;
  font-size: 13.5px; line-height: 1.7; color: var(--star);
}
.cmp-row.cmp-gold {
  border-color: rgba(232, 184, 75, 0.42);
  background: rgba(232, 184, 75, 0.08);
  color: var(--star-bright);
}
.cmp-tag { flex-shrink: 0; font-size: 12px; letter-spacing: 0.12em; color: var(--star); }
.cmp-gold .cmp-tag { color: var(--gold); font-weight: 600; }
@media (max-width: 640px) { .cmp-row { flex-direction: column; gap: 4px; } }

/* ---------- 通用段落 ---------- */
.section { max-width: 1080px; margin: 0 auto; padding: 84px 24px 0; }
.section-head { display: flex; align-items: baseline; gap: 18px; margin-bottom: 36px; }
.section-no { font-family: var(--serif); font-size: 14px; color: var(--gold-deep); letter-spacing: 0.3em; }
.section-title { font-family: var(--serif); font-size: 26px; font-weight: 600; letter-spacing: 0.12em; color: var(--navy); }
.section-lead { color: var(--muted); font-size: 14px; margin-left: auto; }
body.home .section-no { color: var(--gold); }
body.home .section-title { color: var(--star-bright); }
body.home .section-lead { color: var(--star); }

/* ---------- 攻略卡（首页深色卡片） ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px 22px;
}
.card {
  display: block;
  background: var(--night-2);
  border: 1px solid var(--night-line);
  border-radius: 14px;
  overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.card:hover { transform: translateY(-4px); border-color: rgba(232, 184, 75, 0.55); }
.card-img { height: 210px; overflow: hidden; background: #0e1530; }
.card-img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.6s ease; filter: saturate(0.96); }
.card:hover .card-img img { transform: scale(1.04); }
.card-meta { font-size: 12px; color: var(--gold); letter-spacing: 0.16em; margin: 18px 20px 0; }
.card-title { font-family: var(--serif); font-size: 19px; font-weight: 600; letter-spacing: 0.04em; color: #fff; margin: 0 20px; }
.card-desc { font-size: 13.5px; color: var(--star); margin: 8px 20px 20px; line-height: 1.8; }

/* ---------- 理念三栏 ---------- */
.principles { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 40px; }
.principle-no { font-family: var(--serif); font-size: 13px; color: var(--gold-deep); letter-spacing: 0.3em; margin-bottom: 12px; }
.principle h3 { font-family: var(--serif); font-size: 19px; font-weight: 600; margin-bottom: 10px; letter-spacing: 0.08em; color: var(--navy); }
.principle p { font-size: 14px; color: var(--muted); }
body.home .principle-no { color: var(--gold); }
body.home .principle h3 { color: var(--star-bright); }
body.home .principle p { color: var(--star); }

/* ---------- 小程序转化区块（首页） ---------- */
.qr-panel {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 48px;
  align-items: center;
  background: var(--night-2);
  border: 1px solid var(--night-line);
  border-radius: 18px;
  padding: 52px 56px;
}
.qr-kicker { font-size: 12px; letter-spacing: 0.45em; color: var(--gold); margin-bottom: 14px; }
.qr-panel h2 { font-family: var(--serif); font-size: clamp(24px, 3vw, 34px); font-weight: 600; color: #fff; letter-spacing: 0.06em; }
.qr-panel .qr-intro { margin-top: 14px; font-size: 14.5px; color: var(--star); max-width: 30em; }
.qr-steps { list-style: none; margin-top: 26px; }
.qr-steps li {
  display: flex;
  gap: 14px;
  align-items: baseline;
  padding: 10px 0;
  font-size: 14px;
  color: var(--star-bright);
}
.qr-steps .no {
  font-family: var(--serif);
  color: var(--gold);
  font-size: 14px;
  letter-spacing: 0.1em;
  flex-shrink: 0;
}
.qr-card {
  background: #fffdf8;
  border-radius: 14px;
  padding: 20px 20px 16px;
  text-align: center;
  justify-self: center;
}
.qr-card img { width: 176px; height: 176px; display: block; border-radius: 8px; }
.qr-card .qr-cap2 { font-size: 12.5px; color: var(--muted); margin-top: 10px; letter-spacing: 0.1em; }

/* ---------- 文章页 ---------- */
.guide-hero { position: relative; height: 56vh; min-height: 380px; overflow: hidden; }
.guide-hero img { width: 100%; height: 100%; object-fit: cover; display: block; filter: saturate(0.92); }
.guide-hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(8, 12, 30, 0.72), rgba(8, 12, 30, 0.08) 55%); }
.guide-hero-text { position: absolute; left: 0; right: 0; bottom: 40px; z-index: 1; color: #fff; text-align: center; padding: 0 24px; }
.guide-hero-text .kicker { font-size: 12px; letter-spacing: 0.5em; color: var(--gold); margin-bottom: 12px; }
.guide-hero-text h1 { font-family: var(--serif); font-size: clamp(28px, 4.5vw, 46px); font-weight: 600; letter-spacing: 0.1em; text-shadow: 0 1px 20px rgba(0, 0, 0, 0.45); }

.facts {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 40px;
  max-width: 1080px; margin: -1px auto 0; padding: 24px 24px;
  border-bottom: 1px solid var(--line);
  font-size: 13px; color: var(--muted); letter-spacing: 0.1em;
}
.facts b { color: var(--ink); font-weight: 600; }

article { max-width: 720px; margin: 0 auto; padding: 60px 24px 24px; }
article .lede { font-size: 17px; line-height: 2.1; }
.art-h {
  display: flex; align-items: baseline; gap: 16px;
  margin: 68px 0 26px; padding-top: 36px; border-top: 1px solid var(--line);
}
.art-h .no { font-family: var(--serif); font-size: 14px; color: var(--gold-deep); letter-spacing: 0.25em; }
.art-h h2 { font-family: var(--serif); font-size: 24px; font-weight: 600; letter-spacing: 0.1em; color: var(--navy); }
article p { margin-bottom: 18px; color: #33313d; }
figure { margin: 40px 0; }
figure img { width: 100%; display: block; }
figcaption { font-size: 12.5px; color: var(--muted); letter-spacing: 0.15em; margin-top: 10px; text-align: center; }
.spot { display: grid; grid-template-columns: 280px 1fr; gap: 26px; margin-bottom: 34px; align-items: start; }
.spot img { width: 100%; height: 190px; object-fit: cover; display: block; border-radius: 10px; }
.spot h3 { font-family: var(--serif); font-size: 18px; font-weight: 600; letter-spacing: 0.06em; margin-bottom: 6px; color: var(--ink); }
.spot p { font-size: 14px; color: var(--muted); margin: 0; }
ul.tips { list-style: none; }
ul.tips li { padding: 12px 0 12px 22px; border-bottom: 1px dashed var(--line); font-size: 14.5px; color: #33313d; position: relative; }
ul.tips li::before { content: ""; position: absolute; left: 2px; top: 24px; width: 7px; height: 7px; background: var(--gold); border-radius: 50%; }
.back { display: inline-block; font-size: 13px; color: var(--muted); letter-spacing: 0.2em; margin-bottom: 24px; }
.back:hover { color: var(--ink); }

/* ---------- 页脚 ---------- */
footer { margin-top: 110px; border-top: 1px solid var(--line); }
.foot-inner {
  max-width: 1080px; margin: 0 auto; padding: 52px 24px 68px;
  display: flex; flex-wrap: wrap; gap: 24px 60px; justify-content: space-between; align-items: flex-end;
}
.foot-brand { font-family: var(--serif); font-size: 17px; letter-spacing: 0.3em; margin-bottom: 8px; }
.foot-note { font-size: 13px; color: var(--muted); line-height: 2; }
.foot-legal { font-size: 12px; color: #a5a3ae; line-height: 2; }
.foot-legal a { color: inherit; border-bottom: 1px solid transparent; }
.foot-legal a:hover { border-bottom-color: #a5a3ae; }
/* 公安备案徽标（官方 ghs 图 36×40）：按高度等比缩放，基线微调对齐文字 */
.foot-legal .beian-img { height: 14px; width: auto; vertical-align: -3px; margin-right: 4px; }
body.home footer { border-top-color: var(--night-line); }
body.home .foot-brand { color: var(--star-bright); }
body.home .foot-note { color: var(--star); }
body.home .foot-legal { color: #5d6689; }
body.home .foot-legal a:hover { border-bottom-color: #5d6689; }

/* ---------- 右侧浮动小程序码 ---------- */
.qr-float {
  position: fixed; right: 22px; top: 50%; transform: translateY(-50%); z-index: 60;
  background: #fffdf9; border: 1px solid var(--line); border-radius: 12px;
  padding: 12px 12px 10px;
  box-shadow: 0 10px 30px rgba(30, 30, 60, 0.16);
  text-align: center;
}
.qr-float img { width: 118px; height: 118px; display: block; border-radius: 6px; }
.qr-cap { font-size: 12px; color: var(--muted); line-height: 1.6; margin-top: 8px; letter-spacing: 0.06em; }
body.home .qr-float {
  background: var(--night-2);
  border-color: var(--night-line);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
}
body.home .qr-cap { color: var(--star); }
@media (max-width: 900px) { .qr-float { display: none; } }

/* ---------- 响应式 ---------- */
@media (max-width: 760px) {
  .hero-sky { padding: 64px 28px 60px; min-height: 400px; }
  .moon { top: 36px; right: 32px; width: 44px; height: 44px; }
  .qr-panel { grid-template-columns: 1fr; gap: 32px; padding: 36px 28px; text-align: left; }
  .spot { grid-template-columns: 1fr; }
  .spot img { width: 100%; height: 200px; }
  .card-img { height: 190px; }
  .section { padding-top: 60px; }
  .topbar { flex-direction: column; gap: 10px; align-items: flex-start; }
}

.spot.no-img { grid-template-columns: 1fr; }