/* ==========================================================================
   刘刘家看世界 · 全站样式
   移动优先 · 响应式 · 自然色系（草原绿 / 海洋蓝 / 暖沙）
   ========================================================================== */

:root {
  --c-primary: #2e7d5b;        /* 草原绿 */
  --c-primary-dark: #1f5c42;
  --c-primary-soft: #e8f2ec;
  --c-ocean: #1b6e8e;          /* 海洋蓝 */
  --c-ocean-soft: #e6f1f6;
  --c-accent: #e8843c;         /* 暖橙（CTA） */
  --c-accent-dark: #c96a24;
  --c-sand: #f7f1e6;           /* 暖沙背景 */
  --c-ink: #24313a;            /* 主文字 */
  --c-muted: #66757f;          /* 次要文字 */
  --c-line: #e6e1d6;
  --c-white: #ffffff;

  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 4px 20px rgba(36, 49, 58, 0.08);
  --shadow-sm: 0 2px 8px rgba(36, 49, 58, 0.06);

  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, "Helvetica Neue", system-ui, sans-serif;
  --maxw: 1120px;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font);
  color: var(--c-ink);
  background: var(--c-white);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--c-primary); text-decoration: none; }
a:hover { color: var(--c-primary-dark); }
ul, ol { padding-left: 1.4em; }
h1, h2, h3, h4 { line-height: 1.3; font-weight: 700; color: var(--c-ink); }
h1 { font-size: 1.85rem; }
h2 { font-size: 1.45rem; margin: 1.6em 0 .6em; }
h3 { font-size: 1.15rem; margin: 1.4em 0 .4em; }
p { margin: .7em 0; }
strong { color: var(--c-ink); }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

.skip-link {
  position: absolute; left: -9999px; top: 0; background: var(--c-primary);
  color: #fff; padding: 8px 16px; z-index: 1000; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; color: #fff; }

/* ---------- 顶栏 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.96); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--c-line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.15rem; color: var(--c-ink); }
.brand:hover { color: var(--c-primary); }
.brand-logo {
  width: 34px; height: 34px; border-radius: 50%; flex: 0 0 34px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-ocean));
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-size: 1.05rem; font-weight: 800;
}
.brand small { display: block; font-size: .72rem; color: var(--c-muted); font-weight: 500; line-height: 1.1; }

.nav-list { display: flex; gap: 2px; list-style: none; padding: 0; align-items: center; }
.nav-list a {
  display: block; padding: 8px 12px; border-radius: var(--radius-sm);
  color: var(--c-ink); font-weight: 600; font-size: .95rem;
}
.nav-list a:hover { background: var(--c-primary-soft); color: var(--c-primary-dark); }
.nav-list a.active { color: var(--c-primary); }

.menu-toggle {
  display: none; background: none; border: 0; cursor: pointer;
  width: 42px; height: 42px; flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.menu-toggle span { display: block; width: 22px; height: 2px; background: var(--c-ink); border-radius: 2px; transition: .2s; }

/* ---------- Hero ---------- */
.hero {
  position: relative; color: #fff; overflow: hidden;
  background: linear-gradient(135deg, #1f5c42, #1b6e8e);
}
.hero-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .55; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,.15), rgba(0,0,0,.55)); }
.hero-inner { position: relative; z-index: 2; padding: 72px 20px 64px; max-width: var(--maxw); margin: 0 auto; }
.hero h1 { color: #fff; font-size: 2.1rem; margin: 0 0 14px; max-width: 640px; }
.hero p { color: rgba(255,255,255,.92); font-size: 1.08rem; max-width: 560px; margin: 0 0 22px; }
.hero .tagline { color: rgba(255,255,255,.8); font-size: .9rem; margin-bottom: 18px; }
.btn {
  display: inline-block; padding: 11px 22px; border-radius: 999px;
  background: var(--c-accent); color: #fff; font-weight: 700; font-size: .95rem;
  border: 0; cursor: pointer; transition: .2s;
}
.btn:hover { background: var(--c-accent-dark); color: #fff; transform: translateY(-1px); }
.btn.outline { background: transparent; border: 1.5px solid rgba(255,255,255,.8); color: #fff; }
.btn.outline:hover { background: rgba(255,255,255,.15); }
.btn.green { background: var(--c-primary); }
.btn.green:hover { background: var(--c-primary-dark); }

/* ---------- 区块 ---------- */
.section { padding: 48px 0; }
.section.alt { background: var(--c-sand); }
.section-head { margin-bottom: 26px; }
.section-head h2 { margin: 0 0 6px; }
.section-head p { color: var(--c-muted); margin: 0; }
.eyebrow { display: inline-block; color: var(--c-accent); font-weight: 700; font-size: .82rem; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 6px; }

/* ---------- 卡片 ---------- */
.card-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
.card {
  background: #fff; border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow); border: 1px solid var(--c-line);
  display: flex; flex-direction: column; transition: transform .2s, box-shadow .2s;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 10px 28px rgba(36,49,58,.13); }
.card-img { aspect-ratio: 16/9; width: 100%; object-fit: cover; background: var(--c-primary-soft); }
.card-body { padding: 18px 20px 20px; display: flex; flex-direction: column; flex: 1; }
.card-body h3 { margin: 0 0 8px; font-size: 1.08rem; }
.card-body h3 a { color: var(--c-ink); }
.card-body h3 a:hover { color: var(--c-primary); }
.card-body p { color: var(--c-muted); font-size: .92rem; margin: 0 0 14px; flex: 1; }
.card-meta { display: flex; gap: 12px; align-items: center; color: var(--c-muted); font-size: .8rem; }
.tag {
  display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: .74rem; font-weight: 700;
  background: var(--c-primary-soft); color: var(--c-primary-dark);
}
.tag.ocean { background: var(--c-ocean-soft); color: var(--c-ocean); }
.tag.accent { background: #fbeadd; color: var(--c-accent-dark); }

/* ---------- 目的地/住宿 Tab ---------- */
.pill-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 24px; }
.pill {
  display: inline-block; padding: 8px 16px; border-radius: 999px; border: 1px solid var(--c-line);
  color: var(--c-ink); font-weight: 600; font-size: .88rem; background: #fff;
}
.pill:hover { border-color: var(--c-primary); color: var(--c-primary); }
.pill.active { background: var(--c-primary); border-color: var(--c-primary); color: #fff; }

/* ---------- 文章页 ---------- */
.article-hero {
  background: var(--c-sand); border-bottom: 1px solid var(--c-line);
}
.article-hero .container { padding-top: 40px; padding-bottom: 36px; }
.breadcrumb { font-size: .84rem; color: var(--c-muted); margin-bottom: 16px; }
.breadcrumb a { color: var(--c-muted); }
.breadcrumb a:hover { color: var(--c-primary); }
.article-hero h1 { max-width: 760px; }
.article-meta { display: flex; flex-wrap: wrap; gap: 16px; color: var(--c-muted); font-size: .85rem; margin-top: 12px; }

.article-body { max-width: 780px; margin: 0 auto; padding: 32px 20px 56px; }
.article-body > p { font-size: 1.02rem; }
.lead { font-size: 1.12rem !important; color: #3a4a55; }
.article-body figure { margin: 24px 0; }
.article-body figcaption { font-size: .82rem; color: var(--c-muted); text-align: center; margin-top: 8px; }
.article-body img { border-radius: var(--radius); }
.real-photo-grid { display: grid; grid-template-columns: 1fr; gap: 12px; margin: 24px 0 8px; }
.real-photo-grid img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.source-note {
  border-top: 1px solid var(--c-line); margin-top: 30px; padding-top: 18px;
  color: var(--c-muted); font-size: .88rem;
}
.source-note a { font-weight: 600; }

/* 目录 */
.toc {
  background: var(--c-sand); border: 1px solid var(--c-line); border-radius: var(--radius);
  padding: 18px 22px; margin: 24px 0;
}
.toc h2 { margin: 0 0 10px; font-size: 1rem; }
.toc ol { margin: 0; padding-left: 1.3em; font-size: .92rem; }
.toc li { margin: 4px 0; }

/* 信息表 */
.info-table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: .94rem; }
.info-table th, .info-table td { border: 1px solid var(--c-line); padding: 11px 14px; text-align: left; }
.info-table th { background: var(--c-primary-soft); color: var(--c-primary-dark); width: 120px; font-weight: 700; }
.info-table td { color: var(--c-ink); }

/* 提示框 */
.callout {
  border-radius: var(--radius); padding: 16px 18px; margin: 20px 0; font-size: .95rem;
  border-left: 4px solid var(--c-accent); background: #fbeadd;
}
.callout.green { border-left-color: var(--c-primary); background: var(--c-primary-soft); }
.callout.ocean { border-left-color: var(--c-ocean); background: var(--c-ocean-soft); }
.callout strong { display: block; margin-bottom: 4px; }

/* 文章推荐卡 */
.booking-card {
  border: 1.5px solid var(--c-primary); border-radius: var(--radius); padding: 20px 22px;
  margin: 26px 0; background: linear-gradient(180deg, #f2f9f5, #fff);
  display: flex; flex-wrap: wrap; align-items: center; gap: 16px; justify-content: space-between;
}
.booking-card h3 { margin: 0 0 4px; }
.booking-card p { margin: 0; color: var(--c-muted); font-size: .88rem; }
.booking-card .btn { flex-shrink: 0; }

/* FAQ */
.faq-item { border-bottom: 1px solid var(--c-line); padding: 16px 0; }
.faq-item:last-child { border-bottom: 0; }
.faq-q { font-weight: 700; margin: 0 0 6px; color: var(--c-ink); }
.faq-a { margin: 0; color: #43515a; font-size: .95rem; }

/* ---------- 页脚 ---------- */
.site-footer { background: #1c2a33; color: #cfd9df; padding: 48px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 1fr; gap: 28px; }
.site-footer h4 { color: #fff; font-size: .98rem; margin-bottom: 12px; }
.site-footer a { color: #cfd9df; }
.site-footer a:hover { color: #fff; }
.site-footer ul { list-style: none; padding: 0; }
.site-footer ul li { margin: 6px 0; font-size: .9rem; }
.footer-disclosure {
  margin-top: 32px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.12);
  font-size: .8rem; color: #93a3ad; line-height: 1.6;
}
.footer-brand { font-size: .9rem; color: #93a3ad; }

/* ---------- 表单 ---------- */
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 6px; font-size: .9rem; }
.form-group input, .form-group textarea {
  width: 100%; padding: 11px 14px; border: 1px solid var(--c-line); border-radius: var(--radius-sm);
  font-family: var(--font); font-size: .95rem; color: var(--c-ink);
}
.form-group input:focus, .form-group textarea:focus { outline: 2px solid var(--c-primary); border-color: var(--c-primary); }
.form-group textarea { min-height: 130px; resize: vertical; }

/* ---------- 响应式断点 ---------- */
@media (min-width: 640px) {
  .card-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
  .real-photo-grid { grid-template-columns: repeat(2, 1fr); }
  .real-photo-grid.three { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 900px) {
  h1 { font-size: 2.2rem; }
  h2 { font-size: 1.6rem; }
  .hero-inner { padding: 96px 20px 84px; }
  .hero h1 { font-size: 2.6rem; }
  .card-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
  .card-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
}

/* 移动端导航 */
@media (max-width: 899px) {
  .menu-toggle { display: flex; }
  .nav-list {
    position: absolute; top: 64px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--c-line);
    max-height: 0; overflow: hidden; transition: max-height .3s ease;
    box-shadow: var(--shadow);
  }
  .nav-list.open { max-height: 480px; }
  .nav-list a { padding: 14px 20px; border-bottom: 1px solid var(--c-line); }
}