/* 远方旅行官网 · 全站样式（design tokens 见 /DESIGN.md） */
:root{
  --bg:#F7FAFC; --surface:#FFFFFF; --surface-alt:#EEF4F8;
  --ink:#16283C; --ink-soft:#3D5166; --muted:#5A7184;
  --border:#DCE6EE; --accent:#0E7490; --accent-soft:rgba(14,116,144,.08);
  --gold:#B8860B; --success:#1A7A4A; --warn:#B7791F; --danger:#C0392B;
  --display:'Noto Serif SC',Georgia,serif;
  --body:'Noto Sans SC',-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;
  --mono:'JetBrains Mono',ui-monospace,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--body);background:var(--bg);color:var(--ink);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.wrap.narrow{max-width:860px}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{font-family:var(--display);line-height:1.25;letter-spacing:-0.01em}
img{max-width:100%;display:block}

/* ---------- header ---------- */
.site-header{background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:50}
.header-in{display:flex;align-items:center;gap:32px;height:64px}
.logo{font-family:var(--display);font-weight:700;font-size:21px;color:var(--ink);letter-spacing:.02em}
.logo::before{content:'◆ ';color:var(--accent);font-size:14px}
.main-nav{display:flex;gap:26px;margin-left:auto}
.main-nav a{color:var(--ink-soft);font-size:15px;padding:6px 2px;border-bottom:2px solid transparent}
.main-nav a:hover{color:var(--accent);text-decoration:none;border-bottom-color:var(--accent)}
.header-phone{display:flex;align-items:center;gap:6px;font-family:var(--mono);font-size:14px;color:var(--accent);white-space:nowrap}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);margin:4px 0;transition:transform .2s}

/* ---------- buttons ---------- */
.btn{display:inline-block;font:inherit;cursor:pointer;padding:11px 22px;border-radius:8px;font-size:15px;font-weight:500;border:1px solid transparent;transition:all .15s;text-align:center}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{opacity:.9;text-decoration:none}
.btn-ghost{background:var(--surface);color:var(--accent);border-color:var(--border)}
.btn-ghost:hover{border-color:var(--accent);text-decoration:none}
.btn-light{background:#fff;color:var(--ink);font-weight:600}
.btn-light:hover{opacity:.92;text-decoration:none}
.btn-danger{background:var(--danger);color:#fff}
.btn-block{width:100%}
.btn:disabled{opacity:.4;cursor:not-allowed}

/* ---------- hero banner ---------- */
.hero-banner{position:relative;height:62vh;min-height:420px;overflow:hidden}
.banner-slide{position:absolute;inset:0;opacity:0;transition:opacity .8s;display:flex;align-items:center}
.banner-slide.active{opacity:1}
.banner-in{width:100%}
.banner-in h2{font-family:var(--display);color:#fff;font-size:clamp(30px,4.5vw,52px);line-height:1.2;margin-bottom:22px;max-width:16ch;text-shadow:0 1px 14px rgba(10,30,50,.45)}
.banner-dots{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);display:flex;gap:10px}
.b-dot{width:26px;height:4px;border:none;border-radius:2px;background:rgba(255,255,255,.4);cursor:pointer;transition:background .2s}
.b-dot.on{background:#fff}

/* ---------- sections ---------- */
.sec{padding:88px 0}
.sec-alt{background:var(--surface-alt)}
.sec-head{margin-bottom:48px;max-width:640px}
.eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.sec-head h1,.sec-head h2{font-size:clamp(26px,3.2vw,36px);margin:10px 0 12px}
.sec-head p{color:var(--ink-soft)}
.sec-sub{font-size:22px;margin:36px 0 16px}
.page-head{padding:56px 0 8px}
.page-head h1{font-size:clamp(28px,3.5vw,40px)}
.page-head p{color:var(--ink-soft);margin-top:8px}
.sec-more{margin-top:32px;text-align:center}
.link-more{font-weight:500}
.result-count{color:var(--muted);font-size:14px;margin-bottom:20px}

/* ---------- product cards ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.prod-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;overflow:hidden;transition:box-shadow .2s,transform .2s;display:flex;flex-direction:column}
.prod-card:hover{box-shadow:0 2px 16px rgba(22,40,60,.1);transform:translateY(-2px)}
.card-img{position:relative;display:block;aspect-ratio:4/3;overflow:hidden}
.ph-img{width:100%;height:100%;display:flex;align-items:flex-end;justify-content:center}
.ph-img svg{width:70%;height:auto;opacity:.9}
.gold-tag{position:absolute;top:12px;left:12px;background:var(--gold);color:#fff;font-size:12px;padding:3px 10px;border-radius:4px;letter-spacing:.05em}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.card-tags{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:10px}
.card-tags span{font-size:12px;color:var(--accent);background:var(--accent-soft);padding:2px 9px;border-radius:4px}
.gold-tag-inline{font-size:12px;color:var(--gold);border:1px solid var(--gold);padding:2px 9px;border-radius:4px;display:inline-block}
.card-body h3{font-size:18px;line-height:1.4;margin-bottom:6px}
.card-body h3 a{color:var(--ink)}
.card-body h3 a:hover{color:var(--accent);text-decoration:none}
.card-meta{font-size:13px;color:var(--muted);margin-bottom:10px}
.card-sum{font-size:14px;color:var(--ink-soft);flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:16px}
.price{font-family:var(--mono);color:var(--gold);font-size:24px;font-weight:500;font-variant-numeric:tabular-nums}
.price em{font-style:normal;font-size:14px;margin-right:2px}
.price small{font-size:12px;color:var(--muted);margin-left:2px}
.price.big{font-size:38px}

/* ---------- category panel ---------- */
.cat-panel{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:28px 32px}
.cat-row{display:flex;gap:20px;padding:14px 0;border-bottom:1px dashed var(--border)}
.cat-row:last-child{border-bottom:none}
.cat-parent{flex:0 0 110px;font-weight:700;color:var(--ink)}
.cat-names{display:flex;flex-wrap:wrap;gap:8px 22px}
.cat-names a{color:var(--ink-soft);font-size:15px}
.cat-names a:hover{color:var(--accent)}

/* ---------- why grid ---------- */
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.why-item h3{font-size:18px;margin-bottom:8px;color:var(--ink)}
.why-item p{font-size:14px;color:var(--ink-soft)}

/* ---------- reviews ---------- */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:26px}
.review-stars{color:var(--gold);letter-spacing:3px;font-size:14px;margin-bottom:12px}
.review-card p{font-size:14px;color:var(--ink-soft);margin-bottom:14px}
.review-who{font-size:13px;color:var(--muted)}

/* ---------- two col / posts ---------- */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:48px}
.post-item{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--border)}
.post-item h3,.post-item h4{font-size:17px;margin-bottom:4px;font-family:var(--body);font-weight:700}
.post-item h3 a,.post-item h4 a{color:var(--ink)}
.post-item h3 a:hover,.post-item h4 a:hover{color:var(--accent);text-decoration:none}
.post-item p{font-size:14px;color:var(--ink-soft);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-item.big{padding:22px 0}
.post-item.big h3{font-size:20px}
.post-type{flex:0 0 auto;font-size:12px;height:fit-content;padding:3px 10px;border-radius:4px;background:var(--accent-soft);color:var(--accent)}
.post-type.t-避坑{background:#FDF0E7;color:var(--warn)}
.post-type.t-游记{background:#EAF5EE;color:var(--success)}
.post-date{font-size:12px;color:var(--muted);font-family:var(--mono)}
.case-item{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:24px 26px;margin-bottom:16px}
.case-item h3,.case-item h4{font-size:17px;margin-bottom:8px}
.case-item h3 a,.case-item h4 a{color:var(--ink)}
.case-item p{font-size:14px;color:var(--ink-soft);margin-bottom:10px}

/* ---------- filter ---------- */
.filter-bar{display:flex;gap:16px;align-items:flex-end;flex-wrap:wrap;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:18px 22px;margin-bottom:8px}
.filter-bar label{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted)}
.filter-bar select{font:inherit;font-size:14px;padding:8px 12px;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--ink);min-width:130px}

/* ---------- product detail ---------- */
.product-cover{aspect-ratio:21/7;border-radius:12px;overflow:hidden;border:1px solid var(--border)}
.product-layout{display:grid;grid-template-columns:1fr 360px;gap:48px;align-items:start}
.product-main h1{font-size:clamp(24px,3vw,32px);margin:14px 0 8px}
.product-summary{color:var(--ink-soft);font-size:16px;margin:14px 0 8px}
.itinerary{display:flex;flex-direction:column;gap:0}
.it-day{display:flex;gap:16px;padding:16px 0;border-bottom:1px dashed var(--border)}
.it-day:last-child{border-bottom:none}
.it-badge{flex:0 0 64px;height:fit-content;font-family:var(--mono);font-size:12px;text-align:center;color:#fff;background:var(--accent);border-radius:6px;padding:5px 0}
.it-day p{font-size:15px;color:var(--ink-soft)}
.fee-grid{margin-top:12px}
.fee-box{background:var(--surface-alt);border-radius:10px;padding:20px 22px}
.fee-box h3{font-size:16px;margin-bottom:10px;color:var(--ink)}
.fee-box p{font-size:14px;color:var(--ink-soft)}
.notices{font-size:14px;color:var(--warn);background:#FDF8EE;border:1px solid #F0E2C8;border-radius:10px;padding:16px 20px}

/* ---------- side card & forms ---------- */
.product-side{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:26px}
.form-title{font-size:19px;margin-bottom:16px}
.book-form label{display:flex;flex-direction:column;gap:6px;font-size:14px;font-weight:500;color:var(--ink);margin-bottom:14px}
.book-form input,.book-form select,.book-form textarea{font:inherit;font-size:15px;padding:10px 14px;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--ink);width:100%}
.book-form input:focus,.book-form select:focus,.book-form textarea:focus{outline:2px solid var(--accent-soft);border-color:var(--accent)}
.book-form input.invalid{border-color:var(--danger)}
.field-err{color:var(--danger);font-size:12px;margin-top:2px}
.form-tip{font-size:12px;color:var(--muted);margin-top:12px;text-align:center}
.form-success{text-align:center;padding:32px 8px}
.form-success .ok-icon{width:52px;height:52px;border-radius:50%;background:#EAF5EE;color:var(--success);display:flex;align-items:center;justify-content:center;margin:0 auto 16px}
.form-success h3{font-size:20px;margin-bottom:8px}
.form-success p{color:var(--ink-soft);font-size:14px;margin-bottom:20px}
.contact-mini{font-size:14px;color:var(--ink-soft)}
.contact-mini p{margin-bottom:6px}
.contact-line{margin-bottom:12px;font-size:15px}
.map-ph{margin-top:16px;height:170px;border:1px dashed var(--border);border-radius:10px;background:var(--surface-alt);display:flex;flex-direction:column;gap:8px;align-items:center;justify-content:center;color:var(--muted);font-size:13px}

/* ---------- article ---------- */
.article h1{font-size:clamp(24px,3vw,32px);margin:12px 0 8px}
.article-body{font-size:16px;color:var(--ink-soft);line-height:1.85;margin:20px 0}
.article-cta{background:var(--surface-alt);border-radius:10px;padding:18px 22px;font-size:15px;color:var(--ink-soft);margin-top:28px}

/* ---------- certs ---------- */
.cert-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:18px 0 10px}
.cert-item{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:22px;text-align:center;font-size:13px;color:var(--ink-soft)}
.cert-icon{width:52px;height:52px;border-radius:50%;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center;margin:0 auto 12px}
.cert-no{font-family:var(--mono);font-size:11px;color:var(--muted)}
.cert-note{font-size:13px;color:var(--muted);margin-bottom:10px}

/* ---------- empty / error ---------- */
.empty-state{text-align:center;padding:64px 24px;background:var(--surface);border:1px solid var(--border);border-radius:12px;grid-column:1/-1}
.empty-state h3{font-size:20px;margin-bottom:8px}
.empty-state p{color:var(--ink-soft);font-size:14px;margin-bottom:20px}

/* ---------- footer ---------- */
.site-footer{background:#122536;color:#B9C8D4;margin-top:40px}
.footer-in{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:40px;padding:52px 24px 40px}
.footer-logo{font-family:var(--display);font-size:20px;color:#fff;margin-bottom:8px}
.footer-logo::before{content:'◆ ';color:#4FA3BC;font-size:13px}
.footer-slogan{font-size:13px;color:#7E93A5}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:12px;font-weight:500}
.footer-col p{font-size:13px;margin-bottom:8px;color:#8FA3B3}
.footer-col a{color:#8FA3B3}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:16px 24px;display:flex;justify-content:space-between;font-size:12px;color:#6B7F90;flex-wrap:wrap;gap:8px}
.footer-note{opacity:.75}

/* ---------- float bar ---------- */
.float-bar{position:fixed;right:18px;bottom:18px;display:flex;flex-direction:column;gap:10px;z-index:60}
.float-btn{display:flex;flex-direction:column;align-items:center;gap:2px;width:54px;height:54px;border-radius:12px;background:var(--surface);border:1px solid var(--border);color:var(--accent);font-size:11px;cursor:pointer;box-shadow:0 2px 10px rgba(22,40,60,.1);justify-content:center}
.float-btn:hover{border-color:var(--accent);text-decoration:none}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .why-grid,.review-grid,.cert-row{grid-template-columns:repeat(2,1fr)}
  .product-layout{grid-template-columns:1fr;gap:32px}
  .product-side{position:static}
}
@media (max-width:720px){
  .sec{padding:52px 0}
  .header-in{gap:14px}
  .header-phone{display:none}
  .nav-toggle{display:block;margin-left:auto}
  .main-nav{display:none;position:absolute;top:64px;left:0;right:0;background:var(--surface);flex-direction:column;gap:0;padding:8px 24px 16px;border-bottom:1px solid var(--border)}
  .main-nav.open{display:flex}
  .main-nav a{padding:12px 0;border-bottom:1px solid var(--border);font-size:16px}
  .main-nav a:last-child{border-bottom:none}
  .prod-grid,.why-grid,.review-grid,.two-col,.cert-row,.fee-grid{grid-template-columns:1fr}
  .hero-banner{height:52vh;min-height:360px}
  .footer-in{grid-template-columns:1fr;gap:24px;padding:40px 24px 28px}
  .cat-row{flex-direction:column;gap:8px}
  .filter-bar{align-items:stretch}
  .filter-bar label{flex:1}
  .float-bar{right:12px;bottom:12px}
}
@media (prefers-reduced-motion: reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}