/* 省心行旅游规划 官网样式（移动优先，桌面自适应） */
:root {
  --brand: #2f7d6d;
  --brand-dark: #235f53;
  --brand-light: #e8f4f1;
  --ink: #1f2a30;
  --ink-2: #4a5a63;
  --ink-3: #7b8a92;
  --line: #e3e9ec;
  --bg: #fbfcfc;
  --radius: 14px;
  --maxw: 1080px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  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;
  font-size: 16px;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--brand); text-decoration: none; }

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

/* 顶部导航 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 60px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  font-weight: 700;
  font-size: 18px;
  color: var(--ink);
  white-space: nowrap;
}

.brand-dot {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--brand), #59b39f);
  display: inline-block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
}

.nav-links::-webkit-scrollbar { display: none; }

.nav-links a {
  display: inline-block;
  padding: 10px 12px;
  min-height: 40px;
  line-height: 20px;
  color: var(--ink-2);
  font-size: 15px;
  white-space: nowrap;
  border-radius: 8px;
}

.nav-links a:hover { background: var(--brand-light); color: var(--brand-dark); }

.nav-links a.active { color: var(--brand); font-weight: 600; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  background: var(--brand);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  border: 0;
  cursor: pointer;
}

.btn:hover { background: var(--brand-dark); }

.btn-ghost {
  background: #fff;
  color: var(--brand);
  border: 1px solid var(--brand);
}

.btn-ghost:hover { background: var(--brand-light); }

/* 首屏 */
.hero {
  padding: 56px 0 40px;
  background: linear-gradient(180deg, #eff8f6 0%, var(--bg) 100%);
}

.hero h1 {
  font-size: 32px;
  line-height: 1.35;
  margin: 0 0 14px;
  letter-spacing: -0.5px;
}

.hero p.lead {
  font-size: 17px;
  color: var(--ink-2);
  margin: 0 0 26px;
  max-width: 640px;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }

.hero-note {
  margin-top: 18px;
  font-size: 13px;
  color: var(--ink-3);
}

/* 通用区块 */
section.block { padding: 44px 0; }

.section-title {
  font-size: 24px;
  margin: 0 0 8px;
}

.section-sub {
  color: var(--ink-3);
  margin: 0 0 28px;
  font-size: 15px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}

.card h3 { margin: 0 0 8px; font-size: 17px; }

.card p { margin: 0; color: var(--ink-2); font-size: 15px; }

.step {
  display: flex;
  gap: 14px;
  margin-bottom: 22px;
}

.step-num {
  flex: none;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step h3 { margin: 2px 0 6px; font-size: 17px; }

.step p { margin: 0; color: var(--ink-2); font-size: 15px; }

/* 正文页 */
.article { padding: 36px 0 56px; }

.article h1 { font-size: 28px; margin: 0 0 6px; }

.article .meta { color: var(--ink-3); font-size: 13px; margin-bottom: 24px; }

.article h2 { font-size: 19px; margin: 30px 0 10px; }

.article p, .article li { color: var(--ink-2); font-size: 15.5px; }

.article ul { padding-left: 20px; }

.article .box {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}

.article .box a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
}

/* 页脚 */
.site-footer {
  border-top: 1px solid var(--line);
  background: #fff;
  padding: 34px 0 calc(28px + env(safe-area-inset-bottom));
  font-size: 14px;
  color: var(--ink-3);
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: space-between;
}

.footer-links { display: flex; flex-wrap: wrap; gap: 8px 18px; }

.footer-links a { color: var(--ink-2); min-height: 40px; display: inline-flex; align-items: center; }

.footer-bottom {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  font-size: 13px;
}

/* 分享落地页 */
.share-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 24px;
  margin-top: 24px;
}

.share-head { font-size: 20px; font-weight: 700; margin-bottom: 6px; }

.share-meta { color: var(--ink-3); font-size: 14px; margin-bottom: 18px; }

.share-list { margin: 0; padding: 0; list-style: none; }

.share-list li {
  padding: 12px 0;
  border-top: 1px dashed var(--line);
  font-size: 15px;
  color: var(--ink-2);
}

.share-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }

.share-tip {
  background: var(--brand-light);
  color: var(--brand-dark);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 14px;
  margin-top: 18px;
}

.link-btn {
  background: none;
  border: 0;
  padding: 12px 0;
  min-height: 40px;
  color: var(--ink-3);
  font-size: 14px;
  text-decoration: underline;
  cursor: pointer;
}

/* 响应式 */
@media (max-width: 900px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .hero { padding: 36px 0 28px; }
  .hero h1 { font-size: 25px; }
  .hero p.lead { font-size: 16px; }
  .grid { grid-template-columns: 1fr; }
  .nav { height: auto; flex-wrap: wrap; padding: 10px 0 6px; row-gap: 2px; }
  .nav-links { width: 100%; justify-content: flex-start; }
  .nav-links a { padding: 10px 8px; font-size: 14px; }
  .section-title { font-size: 21px; }
  .article h1 { font-size: 23px; }
}

/* iPad 竖屏（768）与横屏（1024）保持内容宽度，避免卡片被拉稀 */
@media (min-width: 768px) {
  .wrap { padding: 0 32px; }
  .hero h1 { font-size: 36px; }
  .grid { gap: 22px; }
  .article .box, .share-card { padding: 28px; }
}