/* ══════════ Tea & Silk — 共享样式表 ══════════ */
:root{
  --ink:#1c2420;
  --ink-soft:#3d4a44;
  --tea:#6b4f2e;
  --tea-light:#9a7b4f;
  --silk:#f7f3ea;
  --silk-deep:#efe7d6;
  --jade:#2f5d50;
  --jade-bright:#3d7a68;
  --cinnabar:#b03a2e;
  --gold:#c9a227;
  --white:#fffdf8;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:Georgia,'Times New Roman',serif;
  color:var(--ink);
  background:var(--silk);
  line-height:1.65;
}
h1,h2,h3{font-weight:normal;letter-spacing:.01em;}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px;}
section{padding:88px 0;}
.eyebrow{
  font-family:-apple-system,'Segoe UI',Helvetica,Arial,sans-serif;
  text-transform:uppercase;letter-spacing:.28em;font-size:12px;
  color:var(--tea);margin-bottom:18px;display:block;
}
.btn{
  display:inline-block;font-family:-apple-system,'Segoe UI',Helvetica,Arial,sans-serif;
  font-size:15px;letter-spacing:.04em;padding:15px 34px;border-radius:2px;
  text-decoration:none;transition:all .25s ease;cursor:pointer;border:none;
}
.btn-primary{background:var(--jade);color:var(--white);}
.btn-primary:hover{background:var(--jade-bright);transform:translateY(-2px);}
.btn-outline{border:1px solid var(--jade);color:var(--jade);background:transparent;}
.btn-outline:hover{background:var(--jade);color:var(--white);}
.btn-outline-light{border:1px solid rgba(255,253,248,.55);color:var(--white);background:transparent;}
.btn-outline-light:hover{background:var(--white);color:var(--ink);}

/* ── Header ── */
header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  padding:22px 0;transition:background .3s ease, box-shadow .3s ease, padding .3s ease;
  background:linear-gradient(180deg,rgba(12,20,17,.62) 0%,rgba(12,20,17,.20) 70%,transparent 100%);
}
header.scrolled{
  background:rgba(247,243,234,.98);box-shadow:0 2px 18px rgba(28,36,32,.08);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);padding:14px 0;
}
header.scrolled .brand{color:var(--ink) !important;}
header.scrolled .brand small{color:rgba(28,36,32,.65) !important;}
header.scrolled .nav-center a{color:var(--ink) !important;}
header.scrolled .nav-center a:hover{color:var(--jade) !important;}
header.scrolled .nav-center a::after{background:var(--jade) !important;}
header.scrolled .btn-nav{
  border-color:var(--jade) !important;color:var(--jade) !important;background:transparent !important;
}
header.scrolled .btn-nav:hover{
  background:var(--jade) !important;color:var(--white) !important;
}
header.scrolled .mobile-menu-btn span{background:var(--ink) !important;}

.header-wrap{
  width:100%;max-width:1180px;
  margin:0 auto;
  padding:0 24px;
  display:flex;align-items:center;justify-content:space-between;
  position:relative;
}
.brand{
  font-size:24px;color:var(--white);text-decoration:none;letter-spacing:.04em;
  white-space:nowrap;flex-shrink:0;line-height:1.1;z-index:2;
}
.brand em{font-style:normal;color:var(--gold);}
.brand small{
  display:block;font-family:-apple-system,sans-serif;font-size:9.5px;
  letter-spacing:.28em;text-transform:uppercase;opacity:.8;margin-top:4px;
}

.nav-center{
  display:flex;gap:clamp(14px,1.8vw,28px);list-style:none;align-items:center;
  margin:0 auto;padding:0;
}
.nav-center a{
  color:rgba(255,253,248,.92);text-decoration:none;
  font-family:Georgia,'Times New Roman',serif;
  font-size:16px;letter-spacing:.01em;white-space:nowrap;
  transition:color .25s ease;position:relative;padding:6px 0;
}
.nav-center a:hover{color:var(--gold);}
.nav-center a::after{
  content:"";position:absolute;bottom:0;left:0;width:0;height:1.5px;
  background:var(--gold);transition:width .25s ease;
}
.nav-center a:hover::after{width:100%;}

.header-right{display:flex;align-items:center;gap:16px;flex-shrink:0;z-index:2;}
.header-right .btn-nav{
  font-family:-apple-system,sans-serif;font-size:11.5px;letter-spacing:.14em;
  text-transform:uppercase;padding:10px 22px;border-radius:2px;white-space:nowrap;
  border:1px solid rgba(201,162,39,.75);color:var(--gold);
  background:rgba(18,28,24,.35);backdrop-filter:blur(4px);
  transition:all .25s ease;text-decoration:none;display:inline-block;
}
.header-right .btn-nav:hover{
  background:var(--gold);color:var(--ink);border-color:var(--gold);transform:translateY(-1px);
}
.header-right .btn-nav::after{display:none;}
header.scrolled .btn-nav{
  border-color:var(--jade);color:var(--jade);background:transparent;
}
header.scrolled .btn-nav:hover{
  background:var(--jade);color:var(--white);
}

@media(max-width:1120px){
  .nav-center{display:none;}
  .mobile-menu-btn{display:flex;}
}

/* ── Footer ── */
footer{background:var(--ink);color:rgba(255,253,248,.6);padding:56px 0 40px;font-family:-apple-system,sans-serif;font-size:13px;}
.footer-grid{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;margin-bottom:36px;}
footer .brand{font-size:20px;}
footer h4{color:var(--white);font-size:12px;letter-spacing:.2em;text-transform:uppercase;margin-bottom:14px;}
footer a{color:rgba(255,253,248,.6);text-decoration:none;display:block;margin-bottom:8px;}
footer a:hover{color:var(--gold);}
.disclaimer{border-top:1px solid rgba(255,253,248,.12);padding-top:24px;font-size:12px;line-height:1.7;color:rgba(255,253,248,.4);}

/* ══════════ 线路详情页专用 ══════════ */
.tour-hero{
  min-height:78vh;display:flex;align-items:flex-end;position:relative;overflow:hidden;
  background:#15211d;color:var(--white);padding:0 0 64px;
}
.tour-hero .bg{position:absolute;inset:0;}
.tour-hero .bg img{width:100%;height:100%;object-fit:cover;filter:brightness(1.02);}
.tour-hero .bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(12,20,17,.72) 0%,rgba(12,20,17,.32) 55%,transparent 85%),
    linear-gradient(180deg,rgba(12,20,17,.55) 0%,rgba(12,20,17,.12) 30%,rgba(12,20,17,.80) 74%,rgba(12,20,17,.95) 100%);
}
.tour-hero .wrap{position:relative;z-index:2;width:100%;}
.breadcrumb{font-family:-apple-system,sans-serif;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:rgba(255,253,248,.7);margin-bottom:18px;}
.breadcrumb a{color:rgba(255,253,248,.7);text-decoration:none;}
.breadcrumb a:hover{color:var(--gold);}
.tour-hero h1{font-size:clamp(34px,5vw,58px);line-height:1.12;max-width:760px;margin-bottom:8px;}
.tour-hero .cn-sub{font-size:clamp(16px,1.8vw,22px);letter-spacing:.35em;color:rgba(255,253,248,.85);margin-bottom:20px;}
.tour-hero .hook{font-size:17px;color:rgba(255,253,248,.82);max-width:640px;margin-bottom:32px;}
.tour-meta{
  display:flex;gap:0;flex-wrap:wrap;border-top:1px solid rgba(255,253,248,.25);
  font-family:-apple-system,sans-serif;
}
.tour-meta>div{padding:18px 34px 0 0;margin-right:34px;border-right:1px solid rgba(255,253,248,.18);}
.tour-meta>div:last-child{border-right:none;}
.tour-meta .k{font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:rgba(255,253,248,.55);margin-bottom:4px;}
.tour-meta .v{font-size:17px;color:var(--white);}
.tour-meta .v.price{color:var(--gold);font-size:19px;}

/* 逐日时间线 */
.timeline{position:relative;padding-left:36px;}
.timeline::before{content:"";position:absolute;left:8px;top:8px;bottom:8px;width:2px;background:var(--silk-deep);}
.day{position:relative;padding:0 0 42px;}
.day:last-child{padding-bottom:0;}
.day::before{
  content:"";position:absolute;left:-34px;top:6px;width:14px;height:14px;border-radius:50%;
  background:var(--silk);border:3px solid var(--jade);
}
.day .d-num{font-family:-apple-system,sans-serif;font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--tea);margin-bottom:4px;}
.day h3{font-size:21px;margin-bottom:8px;line-height:1.35;}
.day p{color:var(--ink-soft);font-size:15.5px;max-width:680px;}
/* 主题日标签 */
.d-theme{
  display:inline-block;font-family:-apple-system,sans-serif;font-size:10.5px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--gold);border:1px solid rgba(201,162,39,.5);
  background:rgba(201,162,39,.08);padding:3px 12px;border-radius:20px;margin:2px 0 10px;
}
/* 匠人纪念品注记：included=行程内含 / optional=自愿选购 */
.day .keepsake{display:block;margin-top:10px;font-family:-apple-system,sans-serif;font-size:13px;color:var(--jade);max-width:680px;}
.day .keepsake i{font-style:normal;color:var(--gold);margin-right:6px;}

/* 亮点条 */
.highlights{background:var(--white);}
.hl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
@media(max-width:860px){.hl-grid{grid-template-columns:1fr;}}
.hl{border:1px solid var(--silk-deep);border-radius:6px;padding:28px 26px;background:var(--white);}
.hl .icon{font-size:22px;color:var(--gold);margin-bottom:12px;}
.hl h3{font-size:17px;margin-bottom:8px;}
.hl p{font-size:14px;color:var(--ink-soft);}

/* 含/不含 */
.incl{background:var(--white);}
.incl-grid{display:grid;grid-template-columns:1fr 1fr;gap:2px;background:var(--silk-deep);border:1px solid var(--silk-deep);border-radius:6px;overflow:hidden;}
@media(max-width:760px){.incl-grid{grid-template-columns:1fr;}}
.incl-col{padding:36px 32px;background:var(--white);}
.incl-col h3{font-family:-apple-system,sans-serif;font-size:13px;text-transform:uppercase;letter-spacing:.22em;margin-bottom:22px;}
.incl-col.yes h3{color:var(--jade);}
.incl-col.no h3{color:var(--cinnabar);}
.incl-col ul{list-style:none;}
.incl-col li{padding:10px 0 10px 28px;position:relative;font-size:14.5px;color:var(--ink-soft);border-bottom:1px solid var(--silk-deep);}
.incl-col li:last-child{border-bottom:none;}
.incl-col.yes li::before{content:"✓";position:absolute;left:0;color:var(--jade);}
.incl-col.no li::before{content:"✕";position:absolute;left:0;color:var(--cinnabar);}

/* FAQ */
.faq-item{border-bottom:1px solid var(--silk-deep);padding:26px 0;}
.faq-item h3{font-size:17px;margin-bottom:10px;color:var(--jade);}
.faq-item p{font-size:15px;color:var(--ink-soft);max-width:760px;}

/* 页内CTA */
.cta{
  background:linear-gradient(160deg,#1c2b26,#2f5d50);color:var(--white);text-align:center;
}
.cta h2{font-size:clamp(28px,4vw,46px);margin-bottom:18px;}
.cta p{color:rgba(255,253,248,.75);max-width:560px;margin:0 auto 40px;font-size:17px;}
.cta .hero-ctas{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}

.section-head{max-width:640px;margin-bottom:56px;}
.section-head h2{font-size:clamp(28px,3.6vw,42px);line-height:1.2;margin-bottom:16px;}
.section-head p{color:var(--ink-soft);font-size:17px;}

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

/* ══════════ 移动端适配 ══════════ */
@media(max-width:720px){
  .wrap{padding:0 18px;}
  section{padding:56px 0;}
  .section-head{margin-bottom:34px;}
  .section-head p{font-size:15.5px;}
  header{padding:14px 0;}
  .brand{font-size:19px;}
  .brand small{font-size:9px;letter-spacing:.22em;}
  .nav-links{gap:0;}
  .nav-links .btn{padding:9px 16px;font-size:11px;}

  /* 线路页首屏 */
  .tour-hero{min-height:auto;padding:118px 0 40px;}
  .tour-hero .bg::after{
    background:linear-gradient(180deg,rgba(12,20,17,.72) 0%,rgba(12,20,17,.42) 30%,rgba(12,20,17,.86) 72%,rgba(12,20,17,.97) 100%);
  }
  .tour-hero h1{font-size:clamp(28px,7.6vw,38px);}
  .tour-hero .cn-sub{font-size:15px;letter-spacing:.28em;margin-bottom:14px;}
  .tour-hero .hook{font-size:15.5px;margin-bottom:24px;color:rgba(255,253,248,.92);}
  .breadcrumb{font-size:10.5px;letter-spacing:.12em;margin-bottom:14px;color:rgba(255,253,248,.85);}

  /* 行程信息条：改成两列网格，去掉竖线 */
  .tour-meta{display:grid;grid-template-columns:1fr 1fr;gap:14px 12px;padding-top:16px;}
  .tour-meta>div{padding:0;margin:0;border-right:none;}
  .tour-meta .k{font-size:9.5px;letter-spacing:.16em;color:rgba(255,253,248,.7);}
  .tour-meta .v{font-size:15px;color:#fff;}
  .tour-meta .v.price{font-size:16px;}

  /* 时间线收窄 */
  .timeline{padding-left:26px;}
  .timeline::before{left:4px;}
  .day{padding-bottom:32px;}
  .day::before{left:-26px;width:11px;height:11px;border-width:2.5px;}
  .day h3{font-size:18px;}
  .day p{font-size:15px;}
  .day .keepsake{font-size:12.5px;}
  .d-theme{font-size:9.5px;letter-spacing:.12em;padding:3px 10px;}

  .hl{padding:24px 20px;}
  .incl-col{padding:26px 20px;}
  .incl-col li{font-size:14px;}
  .faq-item{padding:22px 0;}
  .faq-item h3{font-size:16px;}
  .faq-item p{font-size:14.5px;}
  .cta h2{font-size:26px;}
  .cta p{font-size:15.5px;margin-bottom:30px;}
  .cta .hero-ctas{flex-direction:column;}
  .cta .hero-ctas .btn{width:100%;text-align:center;}
  .footer-grid{gap:28px;margin-bottom:28px;}
}

/* ══════════ 移动端汉堡菜单与抽屉 ══════════ */
.mobile-menu-btn{
  display:none;background:transparent;border:none;cursor:pointer;padding:8px;
  flex-direction:column;gap:5px;z-index:110;
}
.mobile-menu-btn span{
  display:block;width:24px;height:2px;background:var(--white);
  transition:all .25s ease;
}
header.scrolled .mobile-menu-btn span{background:var(--ink);}
.mobile-menu-btn.active span:nth-child(1){transform:translateY(7px) rotate(45deg);background:var(--ink);}
.mobile-menu-btn.active span:nth-child(2){opacity:0;}
.mobile-menu-btn.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);background:var(--ink);}

.mobile-drawer{
  position:fixed;top:0;right:-100%;width:84%;max-width:360px;height:100vh;height:100svh;
  background:var(--silk);box-shadow:-12px 0 36px rgba(28,36,32,.18);
  z-index:105;transition:right .35s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:88px 30px 40px;overflow-y:auto;
}
.mobile-drawer.open{right:0;}
.mobile-drawer-overlay{
  position:fixed;inset:0;background:rgba(18,28,24,.45);backdrop-filter:blur(3px);
  z-index:104;opacity:0;pointer-events:none;transition:opacity .3s ease;
}
.mobile-drawer-overlay.open{opacity:1;pointer-events:auto;}
.mobile-drawer .drawer-links{list-style:none;display:flex;flex-direction:column;gap:20px;margin-bottom:32px;}
.mobile-drawer .drawer-links a{
  text-decoration:none;color:var(--ink);font-size:18px;letter-spacing:.04em;
  display:block;padding-bottom:10px;border-bottom:1px solid var(--silk-deep);
}
.mobile-drawer .drawer-links a:hover{color:var(--jade);}
.mobile-drawer .drawer-cta{display:flex;flex-direction:column;gap:12px;margin-top:auto;}
.mobile-drawer .drawer-cta .btn{text-align:center;padding:13px 20px;}

@media(max-width:1040px){
  .mobile-menu-btn{display:flex;}
  .nav-links li.nav-link-item{display:none;}
}

/* ══════════ 移动端常驻底部快捷咨询条 ══════════ */
.mobile-sticky-bar{
  display:none;position:fixed;bottom:0;left:0;right:0;z-index:90;
  background:rgba(255,253,248,.96);backdrop-filter:blur(10px);
  border-top:1px solid rgba(28,36,32,.08);padding:10px 16px;
  box-shadow:0 -6px 20px rgba(0,0,0,.06);
}
.mobile-sticky-inner{display:flex;gap:10px;max-width:480px;margin:0 auto;}
.mobile-sticky-inner .btn{
  flex:1;padding:12px 14px;font-size:13px;text-align:center;border-radius:3px;
  display:flex;align-items:center;justify-content:center;gap:6px;
}
.btn-whatsapp{background:#25D366;color:#fff;}
.btn-whatsapp:hover{background:#1EBE5D;}
@media(max-width:768px){
  .mobile-sticky-bar{display:block;}
  body{padding-bottom:66px;}
}