:root{
  --cinnabar:#b03a2e; --cinnabar-dark:#8e2b21; --cinnabar-soft:#f5e6e3;
  --indigo:#1a5276; --indigo-deep:#143d59; --indigo-soft:#e8eff5;
  --rice:#f7f3ea; --paper:#fffdf8; --ink:#2c3e50; --ink-soft:#5d6d7e;
  --line:#e5dcc8; --bronze:#9c6b3f; --gold:#c9a063;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif;background:var(--rice);color:var(--ink);line-height:1.75;font-size:16px}
a{color:var(--cinnabar);text-decoration:none}
a:hover{color:var(--cinnabar-dark)}
img{max-width:100%;height:auto}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
h1,h2,h3,h4{font-family:"Noto Serif SC","Songti SC","SimSun",serif;color:var(--indigo);line-height:1.4}

/* ── 页头 ── */
.site-header{position:sticky;top:0;z-index:100;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:0 1px 6px rgba(20,61,89,.06)}
.header-inner{display:flex;align-items:center;gap:28px;height:66px}
.logo{display:flex;align-items:center;gap:10px;color:var(--indigo)}
.seal{width:42px;height:42px;background:var(--cinnabar);color:#fff;border-radius:8px;display:flex;align-items:center;justify-content:center;font-family:"Noto Serif SC","SimSun",serif;font-size:24px;font-weight:700;box-shadow:inset 0 0 0 2px rgba(255,255,255,.25)}
.logo-text strong{display:block;font-size:17px;font-family:"Noto Serif SC","SimSun",serif;letter-spacing:1px}
.logo-text small{display:block;font-size:11px;color:var(--bronze);letter-spacing:2px}
.pc-nav{display:flex;gap:22px;flex:1}
.pc-nav a{color:var(--ink);font-size:15px;padding:4px 0;border-bottom:2px solid transparent}
.pc-nav a:hover,.pc-nav a.on{color:var(--cinnabar);border-bottom-color:var(--cinnabar)}
.tel-pill{background:var(--cinnabar);color:#fff;border-radius:24px;padding:8px 18px;font-size:15px;font-weight:600;white-space:nowrap}
.tel-pill small{display:block;font-size:11px;font-weight:400;opacity:.85;text-align:center}
.menu-toggle{display:none;background:none;border:1px solid var(--line);border-radius:6px;padding:8px 10px;cursor:pointer}
.menu-toggle span{display:block;width:20px;height:2px;background:var(--indigo);margin:4px 0}
.mobile-nav{display:none;background:var(--paper);border-top:1px solid var(--line);padding:10px 20px 16px}
.mobile-nav a{display:block;padding:10px 0;color:var(--ink);border-bottom:1px solid var(--rice)}
.mobile-nav .m-tel{margin-top:10px}
.mobile-nav .m-tel a{color:var(--cinnabar);font-weight:600;border:none}

/* ── 首屏 ── */
.hero{background:linear-gradient(150deg,var(--indigo-deep) 0%,var(--indigo) 62%,#2a6a9e 100%);color:#fff;padding:64px 0 56px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-90px;top:-90px;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,rgba(176,58,46,.35),transparent 68%)}
.hero::before{content:"";position:absolute;left:-60px;bottom:-110px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(201,160,99,.22),transparent 70%)}
.hero .container{position:relative;z-index:2}
.hero-eyebrow{display:inline-block;border:1px solid rgba(255,255,255,.45);border-radius:20px;padding:4px 16px;font-size:13px;letter-spacing:3px;margin-bottom:18px;color:#f3e9d8}
.hero h1{color:#fff;font-size:2.5rem;letter-spacing:2px;margin-bottom:14px}
.hero-sub{font-size:1.05rem;color:#e8e2d4;max-width:760px;margin-bottom:30px}
.hero-sub b{color:#fff}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px}
.btn{display:inline-block;background:var(--cinnabar);color:#fff;border-radius:8px;padding:13px 30px;font-size:16px;font-weight:600;border:2px solid var(--cinnabar)}
.btn:hover{background:var(--cinnabar-dark);border-color:var(--cinnabar-dark);color:#fff}
.btn-ghost{background:transparent;border:2px solid rgba(255,255,255,.6);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.hero-note{font-size:13px;color:#c9d4de}
.hero-stats{display:flex;gap:36px;flex-wrap:wrap;margin-top:34px;padding-top:26px;border-top:1px solid rgba(255,255,255,.18)}
.hstat b{display:block;font-size:1.7rem;font-family:"Noto Serif SC","SimSun",serif;color:#f3d9c8}
.hstat span{font-size:13px;color:#c9d4de}

/* ── 通用区块 ── */
.section{padding:52px 0}
.section.alt{background:var(--paper)}
.section-head{margin-bottom:30px}
.section-head h2{font-size:1.55rem;padding-left:14px;border-left:5px solid var(--cinnabar);margin-bottom:8px}
.section-head p{color:var(--ink-soft);font-size:15px;padding-left:19px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.center-more{text-align:center;margin-top:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.card{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:24px;transition:box-shadow .2s,transform .2s}
.section.alt .card{background:var(--rice)}
.card:hover{box-shadow:0 8px 22px rgba(20,61,89,.10);transform:translateY(-2px)}
.card .ico{font-size:30px;margin-bottom:12px}
.card h3{font-size:1.08rem;margin-bottom:8px}
.card p{font-size:14px;color:var(--ink-soft);margin-bottom:12px}
.card .more{font-size:14px;font-weight:600}
.why-num{font-family:"Noto Serif SC","SimSun",serif;font-size:1.5rem;color:var(--bronze);margin-bottom:6px}

/* ── CTA 带 ── */
.cta-band{background:var(--cinnabar);color:#fff;padding:44px 0;text-align:center}
.cta-band h2{color:#fff;font-size:1.5rem;margin-bottom:10px}
.cta-band p{color:#f7e3df;margin-bottom:22px;font-size:15px}
.cta-band .btn{background:#fff;color:var(--cinnabar);border-color:#fff}
.cta-band .btn:hover{background:var(--rice);color:var(--cinnabar-dark)}
.cta-phones{display:flex;gap:26px;justify-content:center;flex-wrap:wrap;margin-top:20px;font-size:15px}
.cta-phones b{font-size:1.15rem}

/* ── 面包屑+横幅 ── */
.breadcrumb{background:var(--paper);border-bottom:1px solid var(--line);font-size:13px;padding:10px 0}
.breadcrumb a{color:var(--ink-soft)}
.breadcrumb .sep{margin:0 8px;color:var(--line)}
.breadcrumb .current{color:var(--cinnabar);font-weight:600}
.page-banner{background:linear-gradient(140deg,var(--indigo-deep),var(--indigo));color:#fff;padding:38px 0 34px}
.page-banner h2{color:#fff;font-size:1.7rem;margin-bottom:8px}
.page-banner p{color:#dfe7ee;font-size:15px}
.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.tag{background:var(--cinnabar-soft);color:var(--cinnabar-dark);border-radius:16px;padding:2px 12px;font-size:12px;font-weight:600}
.tag.indigo{background:var(--indigo-soft);color:var(--indigo)}

/* ── 正文排版 ── */
.article{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:36px 40px;margin:28px auto}
.article h1{font-size:1.65rem;margin-bottom:18px;padding-bottom:14px;border-bottom:2px solid var(--rice)}
.article h2{font-size:1.25rem;margin:34px 0 12px;padding-left:12px;border-left:4px solid var(--cinnabar)}
.article h3{font-size:1.05rem;margin:22px 0 8px;color:var(--bronze)}
.article p{margin-bottom:14px;font-size:15.5px}
.article ul,.article ol{margin:0 0 16px 22px}
.article li{margin-bottom:8px;font-size:15.5px}
.article strong{color:var(--indigo)}
.article blockquote{background:var(--rice);border-left:4px solid var(--bronze);border-radius:0 8px 8px 0;padding:14px 18px;margin:16px 0;color:var(--ink-soft);font-size:15px}
.article code{background:var(--rice);border:1px solid var(--line);border-radius:4px;padding:1px 6px;font-size:14px;color:var(--cinnabar-dark)}
.table-wrap{overflow-x:auto;margin:16px 0}
.article table{width:100%;border-collapse:collapse;font-size:14.5px;background:#fff}
.article th{background:var(--indigo);color:#fff;padding:10px 12px;text-align:left;font-weight:600;white-space:nowrap}
.article td{border:1px solid var(--line);padding:9px 12px;vertical-align:top}
.article tr:nth-child(even) td{background:var(--rice)}
.article .cta-box{background:var(--indigo-soft);border:1px solid #c8d8e6;border-radius:10px;padding:18px 22px;margin-top:26px}
.article .cta-box p{margin-bottom:6px;font-size:15px}
.article .cta-box .tel-line{font-weight:700;color:var(--cinnabar);font-size:17px}

/* ── 线路总览：锚点导航（明显可点击） ── */
.route-toc{background:var(--rice);border:1px solid var(--line);border-radius:14px;padding:18px 22px;margin:20px 0 12px}
.route-toc .toc-hint{font-size:14px;color:var(--ink-soft);margin-bottom:14px;line-height:1.7}
.route-toc .toc-hint b{color:var(--cinnabar)}
.route-toc .toc-group{margin-bottom:14px}
.route-toc .toc-group:last-child{margin-bottom:0}
.route-toc .toc-label{display:inline-block;font-size:13px;font-weight:700;color:var(--indigo);background:var(--indigo-soft);border-radius:14px;padding:3px 12px;margin:0 12px 10px 0;vertical-align:middle}
.route-toc .toc-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:2px}
.toc-chip{display:inline-block;background:#fff;border:1.5px solid var(--cinnabar);color:var(--cinnabar);border-radius:22px;padding:7px 16px;font-size:14.5px;font-weight:600;cursor:pointer;transition:background .18s,color .18s,box-shadow .18s;box-shadow:0 1px 4px rgba(176,58,46,.08)}
.toc-chip:hover{background:var(--cinnabar);color:#fff;box-shadow:0 3px 12px rgba(176,58,46,.24)}
.article h2[id],.article h3[id]{scroll-margin-top:84px}
.article th:last-child,.article td:last-child{text-align:center}

/* ── 线路海报画廊（带二维码，供游客长按识别） ── */
.route-gallery{margin-top:30px;border-top:1px dashed var(--line);padding-top:24px}
.route-gallery .g-title{font-size:1.05rem;color:var(--bronze);margin-bottom:14px;padding-left:12px;border-left:4px solid var(--cinnabar)}
.route-gallery .g-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:14px}
.route-gallery .g-item{display:block;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--rice);transition:transform .2s,box-shadow .2s}
.route-gallery .g-item:hover{transform:translateY(-3px);box-shadow:0 6px 18px rgba(20,61,89,.18)}
.route-gallery .g-item img{width:100%;height:auto;display:block}
.route-gallery .g-tip{margin-top:12px;font-size:13.5px;color:var(--ink-soft)}

/* ── FAQ ── */
.faq-item{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:20px 24px;margin-bottom:14px}
.faq-item h3{color:var(--cinnabar-dark);font-size:1.02rem;margin-bottom:8px}
.faq-item p{font-size:15px;color:var(--ink)}
.faq-item p:last-child{margin-bottom:0}

/* ── 一键返回顶部 ── */
.back-top{position:fixed;right:20px;bottom:24px;width:46px;height:46px;border:none;border-radius:50%;
  background:var(--cinnabar);color:#fff;font-size:22px;line-height:46px;text-align:center;cursor:pointer;
  box-shadow:0 4px 14px rgba(176,58,46,.35);opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s,transform .2s;z-index:200}
.back-top.show{opacity:1;visibility:visible}
.back-top:hover{background:var(--cinnabar-dark);transform:translateY(-2px)}
@media (max-width:768px){.back-top{right:14px;bottom:16px;width:42px;height:42px;font-size:20px;line-height:42px}}

/* ── 线路页 FAQ / 相关线路（SEO·GEO） ── */
.route-faq{margin-top:30px;border-top:1px dashed var(--line);padding-top:22px}
.route-faq h2{font-size:1.2rem;margin-bottom:14px;padding-left:12px;border-left:4px solid var(--cinnabar)}
.route-related{margin-top:30px;border-top:1px dashed var(--line);padding-top:22px}
.route-related h2{font-size:1.2rem;margin-bottom:14px;padding-left:12px;border-left:4px solid var(--cinnabar)}
.route-related .rel-list{list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:10px 22px}
.route-related .rel-list li{padding:6px 0;border-bottom:1px dashed var(--line)}
.route-related .rel-list a{font-size:15px}
@media (max-width:768px){.route-related .rel-list{grid-template-columns:1fr}}

/* ── hub 页（dest/guides/services）线路板块 ── */
.hub-block{margin-top:26px;border-top:1px dashed var(--line);padding-top:18px}
.hub-block h2{font-size:1.15rem;margin-bottom:8px;padding-left:12px;border-left:4px solid var(--cinnabar)}
.hub-block .hub-intro{font-size:14.5px;color:#555;margin-bottom:10px}
.hub-block .hub-guide{font-size:14px;margin-bottom:10px}
.hub-count{display:inline-block;margin-left:10px;font-size:13px;color:#888;font-weight:normal}
.route-mini{list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:6px 22px}
.route-mini li{padding:5px 0;border-bottom:1px dashed var(--line);display:flex;justify-content:space-between;gap:12px;align-items:baseline}
.route-mini a{font-size:14.5px}
.route-mini .rm-price{font-size:13px;color:var(--cinnabar);white-space:nowrap}
@media (max-width:768px){.route-mini{grid-template-columns:1fr}}

/* ── 页脚 ── */
.site-footer{background:var(--indigo-deep);color:#c8d4de;padding:44px 0 0;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:34px;padding-bottom:30px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px;padding-bottom:8px;border-bottom:2px solid var(--cinnabar);display:inline-block;font-family:"Noto Serif SC","SimSun",serif}
.footer-col ul{list-style:none}
.footer-col li{padding:5px 0;font-size:14px}
.footer-col a{color:#c8d4de}
.footer-col a:hover{color:#fff}
.footer-contact p{margin:7px 0;font-size:14px}
.footer-contact b{color:#f3d9c8}
.footer-beian{border-top:1px solid rgba(255,255,255,.12);padding:18px 0 22px;text-align:center;font-size:13px;color:#8fa3b3}
.footer-beian a{color:#8fa3b3}
.footer-beian .fb-brand{color:#c8d4de;margin-bottom:4px}

/* ── 响应式 ── */
@media (max-width:960px){.grid-3{grid-template-columns:1fr 1fr}}
@media (max-width:768px){
  .pc-nav,.tel-pill{display:none}
  .menu-toggle{display:block;margin-left:auto}
  .mobile-nav.open{display:block}
  .hero h1{font-size:1.8rem}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .article{padding:24px 20px}
  .footer-grid{grid-template-columns:1fr}
  .hero-stats{gap:22px}
}

/* 2026-10-25 配图上线：hero 背景 + 卡片配图 + 署名 */
.hero{background-image:linear-gradient(150deg,rgba(12,34,55,.90) 0%,rgba(20,61,89,.83) 55%,rgba(42,106,158,.74) 100%),url("/images/hero-longmen.jpg");background-size:cover;background-position:center 45%;background-repeat:no-repeat}
.card .photo{position:relative;margin:-24px -24px 16px}
.card .photo img{width:100%;height:168px;object-fit:cover;display:block;border-radius:11px 11px 0 0}
.card .photo .credit{position:absolute;right:0;bottom:0;background:rgba(8,22,36,.66);color:#e6ecf2;font-size:11px;line-height:1.7;padding:1px 8px;border-radius:4px 0 0 0}
.credit-note{font-size:12px;color:var(--ink-soft);margin:0 0 16px;line-height:1.7}
@media(max-width:640px){.card .photo img{height:132px}}