/* ===== 长沙文博导览 CSS ===== */
:root{
  --paper:#F5F0E6;
  --paper-2:#EDE4D3;
  --card:#FDFBF6;
  --ink:#262017;
  --ink-2:#4C4437;
  --ink-3:#7C7464;
  --line:rgba(38,32,23,.16);
  --line-soft:rgba(38,32,23,.1);
  --cinnabar:#9E3A26;
  --cinnabar-d:#7C2C1B;
  --cinnabar-soft:rgba(158,58,38,.12);
  --gold:#B0893F;
  --serif:"Noto Serif SC","Songti SC","SimSun",serif;
  --sans:"Noto Sans SC","Microsoft YaHei","PingFang SC",sans-serif;
  --nav-h:72px;
}

*,*::before,*::after{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; scroll-padding-top:calc(var(--nav-h) + 12px); }
body{
  font-family:var(--sans); font-weight:400; color:var(--ink);
  background:var(--paper); line-height:1.7;
  -webkit-font-smoothing:antialiased; overflow-x:hidden;
}
img{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }
ul,ol{ list-style:none; }
button{ font-family:inherit; background:none; border:none; cursor:pointer; }
::selection{ background:var(--cinnabar); color:#fff; }
:focus-visible{ outline:2px solid var(--cinnabar); outline-offset:3px; }

.wrap{ max-width:1200px; margin-inline:auto; padding-inline:clamp(20px,4.5vw,48px); }
.section{ padding:clamp(72px,9vw,116px) 0; }

.skip{
  position:absolute; width:1px; height:1px; margin:-1px; padding:0; overflow:hidden;
  clip:rect(0 0 0 0); clip-path:inset(50%); white-space:nowrap; border:0;
}
.skip:focus{
  width:auto; height:auto; margin:0; padding:12px 18px; overflow:visible;
  clip:auto; clip-path:none; white-space:normal; z-index:300;
  position:fixed; top:12px; left:12px;
  background:var(--cinnabar); color:#fff; font-size:14px;
}

.sec-head{ margin-bottom:clamp(36px,5vw,60px); }
.sec-eyebrow{
  display:flex; align-items:center; gap:14px;
  font-size:12px; letter-spacing:.34em; color:var(--gold); font-weight:500;
}
.sec-eyebrow::before{ content:""; width:36px; height:1px; background:var(--gold); flex:none; }
.sec-title{
  font-family:var(--serif); font-weight:900;
  font-size:clamp(28px,4.2vw,44px); line-height:1.25;
  margin-top:16px; color:var(--ink); letter-spacing:.04em;
}
.sec-sub{ margin-top:14px; max-width:720px; font-size:15px; color:var(--ink-2); }

/* 顶部导航 */
.site-header{
  position:fixed; inset:0 0 auto 0; z-index:100; height:var(--nav-h);
  display:flex; align-items:center; color:#F6F0E3;
  transition:background .35s ease,color .35s ease,box-shadow .35s ease,border-color .35s ease;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(245,240,230,.92);
  -webkit-backdrop-filter:blur(10px); backdrop-filter:blur(10px);
  color:var(--ink); border-bottom-color:var(--line-soft);
  box-shadow:0 1px 0 var(--line-soft);
}
.site-header .wrap{ width:100%; display:flex; align-items:center; justify-content:space-between; }
.logo{ display:flex; align-items:center; gap:12px; }
.logo-mark{ width:34px; height:34px; flex:none; }
.logo-name{ font-family:var(--serif); font-weight:700; font-size:19px; letter-spacing:.12em; line-height:1.1; }
.logo-en{ display:block; font-size:9px; letter-spacing:.42em; opacity:.66; margin-top:2px; }
.nav-links{ display:flex; align-items:center; gap:clamp(18px,3vw,38px); }
.nav-links a{
  position:relative; font-size:14.5px; letter-spacing:.08em; color:inherit; opacity:.82;
  padding:6px 2px; transition:opacity .25s;
}
.nav-links a::after{
  content:""; position:absolute; left:0; right:0; bottom:0; height:1px;
  background:var(--cinnabar); transform:scaleX(0); transform-origin:left; transition:transform .3s ease;
}
.nav-links a:hover{ opacity:1; }
.nav-links a:hover::after{ transform:scaleX(1); }
.nav-toggle{ display:none; flex-direction:column; gap:6px; padding:8px; }
.nav-toggle span{ width:24px; height:1.6px; background:currentColor; transition:transform .3s ease,opacity .3s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform:translateY(7.6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform:translateY(-7.6px) rotate(-45deg); }

/* Hero */
.hero{
  position:relative; min-height:100svh;
  display:flex; align-items:flex-end;
  background:#1C1712; overflow:hidden; color:#F6F0E3;
}
.hero-bg{
  position:absolute; inset:0;
  background:url("assets/hero.webp") center 30%/cover no-repeat;
}
.hero-bg::after{
  content:""; position:absolute; inset:0;
  background:
    linear-gradient(to top, rgba(20,15,10,.92) 0%, rgba(20,15,10,.38) 34%, rgba(20,15,10,.18) 62%, rgba(20,15,10,.42) 100%),
    linear-gradient(to right, rgba(20,15,10,.55) 0%, rgba(20,15,10,.08) 55%);
}
.hero-inner{ position:relative; z-index:2; width:100%; padding:170px 0 96px; }
.hero-kicker{
  display:inline-flex; align-items:center; gap:12px;
  font-size:12.5px; letter-spacing:.42em; color:#D9C49A; margin-bottom:22px;
}
.hero-kicker::before{ content:""; width:44px; height:1px; background:#D9C49A; }
.hero-title{
  font-family:var(--serif); font-weight:900;
  font-size:clamp(46px,8.5vw,100px); line-height:1.1;
  letter-spacing:.08em; text-shadow:0 2px 24px rgba(0,0,0,.35);
}
.hero-en{
  margin-top:18px; font-size:clamp(11px,1.4vw,14px); letter-spacing:.58em;
  color:#CBBFA4; font-weight:300;
}
.hero-sub{
  margin-top:26px; max-width:600px;
  font-size:clamp(14px,1.6vw,16px); line-height:1.95; color:rgba(246,240,227,.88);
}
.hero-chips{ display:flex; flex-wrap:wrap; gap:10px; margin-top:30px; }
.hero-chips span{
  font-size:12px; letter-spacing:.18em; padding:7px 16px;
  border:1px solid rgba(246,240,227,.4); border-radius:999px; color:#EFE6D2;
}
.cta-row{ display:flex; flex-wrap:wrap; gap:16px; margin-top:38px; }
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  padding:15px 34px; font-size:15px; font-weight:500; letter-spacing:.1em;
  border:1px solid transparent; transition:all .28s ease; border-radius:2px;
}
.btn-primary{ background:var(--cinnabar); border-color:var(--cinnabar); color:#FFF7EC; }
.btn-primary:hover{ background:var(--cinnabar-d); border-color:var(--cinnabar-d); transform:translateY(-1px); }
.btn-ghost{ border-color:rgba(246,240,227,.55); color:#F6F0E3; }
.btn-ghost:hover{ border-color:#F6F0E3; background:rgba(246,240,227,.1); }
.btn-ghost svg{ transition:transform .28s ease; }
.btn-ghost:hover svg{ transform:translateX(4px); }
.scroll-cue{
  position:absolute; z-index:2; bottom:34px; left:50%; transform:translateX(-50%);
  display:flex; flex-direction:column; align-items:center; gap:10px;
  font-size:10.5px; letter-spacing:.4em; color:rgba(246,240,227,.6);
}
.scroll-cue::after{
  content:""; width:1px; height:44px;
  background:linear-gradient(to bottom, rgba(246,240,227,.75), transparent);
  animation:cue 2s ease-in-out infinite;
}
@keyframes cue{ 0%,100%{ transform:scaleY(.6); transform-origin:top; } 50%{ transform:scaleY(1); } }

/* 数据条 */
.stats{
  display:grid; grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--ink); border-bottom:1px solid var(--ink);
}
.stat{ padding:26px 18px; text-align:center; border-left:1px solid var(--line-soft); }
.stat:first-child{ border-left:none; }
.stat b{
  display:block; font-family:var(--serif); font-weight:900;
  font-size:clamp(32px,4vw,50px); line-height:1.1; color:var(--cinnabar); letter-spacing:.02em;
}
.stat b small{ font-size:.5em; font-weight:700; margin-left:2px; color:var(--gold); }
.stat span{ display:block; margin-top:8px; font-size:13px; letter-spacing:.2em; color:var(--ink-3); }
.stats-note{
  margin-top:14px; text-align:right; font-size:11.5px; letter-spacing:.06em; color:var(--ink-3);
}
.ov-grid{
  margin-top:clamp(40px,5vw,60px);
  display:grid; grid-template-columns:1.05fr 1fr; gap:clamp(28px,4vw,56px);
  align-items:center; border-top:1px solid var(--line-soft); padding-top:clamp(40px,5vw,60px);
}
.ov-media{ overflow:hidden; aspect-ratio:16/10; background:#242018; }
.ov-media img{ width:100%; height:100%; object-fit:cover; }
.ov-body h3{ font-family:var(--serif); font-weight:900; font-size:clamp(22px,2.6vw,30px); line-height:1.4; letter-spacing:.04em; }
.ov-body p{ margin-top:16px; font-size:14.5px; line-height:2; color:var(--ink-2); }
.ov-body ul{ margin-top:20px; display:grid; gap:12px; }
.ov-body li{ display:flex; gap:12px; font-size:13.5px; line-height:1.8; color:var(--ink-2); }
.ov-body li::before{ content:""; flex:none; width:7px; height:7px; margin-top:9px; background:var(--cinnabar); transform:rotate(45deg); }

/* 一级馆巡礼 */
.tops{ background:var(--paper-2); }
.top-feature{
  display:grid; grid-template-columns:1.15fr 1fr;
  border:1px solid var(--line-soft); background:var(--card); margin-bottom:28px;
}
.top-feature .tf-media{ position:relative; min-height:300px; overflow:hidden; background:#1F1A14; }
.top-feature .tf-media img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; transition:transform 1s cubic-bezier(.2,.6,.2,1); }
.top-feature:hover .tf-media img{ transform:scale(1.04); }
.top-feature .tf-body{ padding:clamp(30px,4vw,54px); display:flex; flex-direction:column; justify-content:center; }
.tf-body .tf-tag{ align-self:flex-start; font-size:11.5px; letter-spacing:.24em; color:var(--gold); }
.tf-body h3{ margin-top:14px; font-family:var(--serif); font-weight:900; font-size:clamp(24px,3vw,34px); line-height:1.3; }
.tf-body .tf-en{ margin-top:8px; font-size:10.5px; letter-spacing:.34em; color:var(--ink-3); }
.tf-body p{ margin-top:18px; font-size:14.5px; line-height:2; color:var(--ink-2); }
.tf-facts{ margin-top:22px; display:grid; gap:10px; }
.tf-facts li{ display:flex; gap:12px; font-size:13.5px; color:var(--ink-2); line-height:1.7; }
.tf-facts li::before{ content:""; flex:none; width:7px; height:7px; margin-top:9px; background:var(--cinnabar); transform:rotate(45deg); }
.top-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(18px,2.4vw,28px); }
.top-card{
  border:1px solid var(--line-soft); background:var(--card);
  display:flex; flex-direction:column;
  transition:transform .35s ease,box-shadow .35s ease,border-color .35s ease;
}
.top-card:hover{ transform:translateY(-5px); box-shadow:0 22px 44px -28px rgba(38,32,23,.4); border-color:rgba(158,58,38,.35); }
.top-card .tc-media{ aspect-ratio:16/10; overflow:hidden; background:#242018; }
.top-card .tc-media img{ width:100%; height:100%; object-fit:cover; transition:transform .8s cubic-bezier(.2,.6,.2,1); }
.top-card:hover .tc-media img{ transform:scale(1.05); }
.top-card .tc-media.tc-block{
  background:linear-gradient(135deg, var(--cinnabar) 0%, var(--cinnabar-d) 100%);
  display:flex; align-items:center; justify-content:center; color:#F6F0E3;
}
.top-card .tc-media.tc-block .tc-letter{ font-family:var(--serif); font-weight:900; font-size:clamp(48px,5vw,64px); opacity:.92; letter-spacing:.1em; }
.top-card .tc-body{ padding:20px 22px 24px; display:flex; flex-direction:column; flex:1; }
.top-card h3{ font-family:var(--serif); font-weight:700; font-size:19px; line-height:1.4; }
.top-card p{ margin-top:8px; font-size:13px; line-height:1.8; color:var(--ink-2); flex:1; }
.top-card .tc-meta{ margin-top:12px; font-size:12px; color:var(--ink-3); letter-spacing:.03em; }
.tc-lvl{
  align-self:flex-start; font-size:11px; letter-spacing:.18em; color:var(--cinnabar);
  border:1px solid rgba(158,58,38,.4); padding:3px 10px; border-radius:2px; margin-bottom:10px;
}

/* 全城名录 */
.filter-bar{ display:flex; flex-wrap:wrap; gap:10px; margin-bottom:34px; }
.filter-bar button{
  font-size:13px; letter-spacing:.12em; padding:9px 20px;
  border:1px solid var(--line); background:var(--card); color:var(--ink-2);
  transition:all .25s ease;
}
.filter-bar button:hover{ border-color:var(--cinnabar); color:var(--cinnabar); }
.filter-bar button.active{ background:var(--cinnabar); border-color:var(--cinnabar); color:#FFF7EC; }
.m-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(18px,2.4vw,28px); }
.m-card{
  background:var(--card); border:1px solid var(--line-soft);
  display:flex; flex-direction:column;
  transition:transform .35s ease,box-shadow .35s ease,border-color .35s ease;
}
.m-card:hover{ transform:translateY(-5px); box-shadow:0 22px 44px -28px rgba(38,32,23,.4); border-color:rgba(158,58,38,.35); }
.m-card.hide{ display:none; }
.m-media{ aspect-ratio:16/10; overflow:hidden; background:#242018; }
.m-media img{ width:100%; height:100%; object-fit:cover; transition:transform .8s cubic-bezier(.2,.6,.2,1); }
.m-card:hover .m-media img{ transform:scale(1.05); }
.m-body{ padding:20px 22px 24px; display:flex; flex-direction:column; flex:1; }
.m-top{ display:flex; align-items:center; gap:8px; flex-wrap:wrap; }
.lvl{ font-size:10.5px; letter-spacing:.16em; padding:3px 9px; border-radius:2px; font-weight:500; }
.lvl-1{ color:#FFF7EC; background:var(--cinnabar); }
.lvl-2{ color:var(--cinnabar); border:1px solid rgba(158,58,38,.45); }
.lvl-3{ color:var(--gold); border:1px solid rgba(176,137,63,.45); }
.m-region{ font-size:11px; letter-spacing:.1em; color:var(--ink-3); }
.m-name{ margin-top:12px; font-family:var(--serif); font-weight:700; font-size:19px; line-height:1.4; }
.m-desc{ margin-top:8px; font-size:13px; line-height:1.8; color:var(--ink-2); flex:1; }
.m-facts{ margin-top:14px; border-top:1px dashed var(--line); padding-top:12px; display:grid; gap:7px; }
.m-facts div{ display:flex; gap:10px; font-size:12px; line-height:1.7; color:var(--ink-3); }
.m-facts dt{ flex:none; color:var(--gold); letter-spacing:.08em; }
.m-facts dd{ color:var(--ink-2); }
.m-card.m-text{ position:relative; overflow:hidden; }
.m-text .m-band{ position:absolute; inset:0 0 auto 0; height:86px; display:flex; align-items:center; gap:16px; padding:0 22px; background:var(--paper-2); border-bottom:1px solid var(--line-soft); }
.m-text .m-band .m-letter{
  width:46px; height:46px; flex:none; border:1px solid rgba(158,58,38,.5); color:var(--cinnabar);
  font-family:var(--serif); font-size:20px; display:flex; align-items:center; justify-content:center;
}
.m-text .m-band .m-titles h3{ font-family:var(--serif); font-weight:700; font-size:18px; line-height:1.35; }
.m-text .m-band .m-titles span{ font-size:11px; letter-spacing:.14em; color:var(--ink-3); }
.m-text .m-body{ padding-top:118px; }

/* 参观贴士 */
.tips{ background:var(--paper-2); }
.t-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:clamp(18px,2.4vw,28px); }
.t-card{ background:var(--card); border:1px solid var(--line-soft); padding:28px 26px; }
.t-icon{ width:40px; height:40px; border:1px solid rgba(158,58,38,.4); color:var(--cinnabar); display:flex; align-items:center; justify-content:center; }
.t-card h3{ margin-top:18px; font-family:var(--serif); font-weight:700; font-size:18px; }
.t-card p{ margin-top:12px; font-size:13.5px; line-height:1.95; color:var(--ink-2); }
.t-card p .hl{ color:var(--cinnabar); font-weight:500; }
.routes{ margin-top:clamp(40px,5vw,60px); }
.routes h3{ font-family:var(--serif); font-weight:900; font-size:clamp(20px,2.4vw,26px); letter-spacing:.05em; display:flex; align-items:center; gap:12px; }
.routes h3::before{ content:""; width:14px; height:14px; background:var(--cinnabar); transform:rotate(45deg); flex:none; }
.route-grid{ margin-top:24px; display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(18px,2.4vw,28px); }
.route{ border:1px solid var(--line-soft); background:var(--card); padding:26px; }
.route .r-name{ font-family:var(--serif); font-weight:700; font-size:16px; color:var(--cinnabar); letter-spacing:.06em; }
.route ul{ margin-top:14px; display:grid; gap:9px; }
.route li{ display:flex; gap:12px; font-size:13.5px; line-height:1.75; color:var(--ink-2); }
.route li::before{ content:""; flex:none; width:6px; height:6px; margin-top:9px; background:var(--gold); transform:rotate(45deg); }
.route .r-note{ margin-top:16px; font-size:12px; line-height:1.8; color:var(--ink-3); }
.more-wrap{ margin-top:clamp(40px,5vw,56px); border:1px solid var(--line-soft); background:var(--card); padding:clamp(24px,3.5vw,40px); }
.more-wrap h3{ font-family:var(--serif); font-weight:700; font-size:18px; letter-spacing:.08em; }
.more-wrap .more-list{ margin-top:16px; display:grid; grid-template-columns:repeat(2,1fr); gap:10px 30px; }
.more-wrap .more-list li{ display:flex; gap:10px; font-size:13px; line-height:1.8; color:var(--ink-2); }
.more-wrap .more-list li::before{ content:""; flex:none; width:5px; height:5px; margin-top:9px; background:var(--gold); border-radius:50%; }
.more-note{ margin-top:16px; font-size:12px; color:var(--ink-3); }

/* 页脚 */
.site-footer{ background:#211B13; color:#C9BFA6; }
.foot-main{ padding:64px 0 40px; display:grid; grid-template-columns:1.2fr 1fr 1fr; gap:40px; }
.foot-brand .logo{ color:#F6F0E3; }
.foot-brand p{ margin-top:20px; font-size:13px; line-height:1.95; color:rgba(201,191,166,.75); max-width:360px; }
.foot-col h5{ font-size:12.5px; letter-spacing:.3em; color:#D9C49A; font-weight:500; }
.foot-col ul{ margin-top:18px; display:grid; gap:11px; font-size:13.5px; }
.foot-col a{ color:rgba(201,191,166,.8); transition:color .25s; }
.foot-col a:hover{ color:#F6F0E3; }
.foot-bottom{
  border-top:1px solid rgba(201,191,166,.14); padding:22px 0;
  font-size:12px; letter-spacing:.06em; color:rgba(201,191,166,.55);
  display:flex; flex-wrap:wrap; gap:8px 28px; justify-content:space-between;
}

/* 滚动显现 / 回到顶部 */
.reveal{ opacity:0; transform:translateY(22px); transition:opacity .8s ease,transform .8s ease; transition-delay:var(--d,0s); }
.reveal.in{ opacity:1; transform:none; }
.to-top{
  position:fixed; right:24px; bottom:24px; z-index:90;
  width:44px; height:44px; border:1px solid var(--line); background:var(--card); color:var(--ink);
  display:flex; align-items:center; justify-content:center;
  opacity:0; visibility:hidden; transform:translateY(10px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease;
}
.to-top.show{ opacity:1; visibility:visible; transform:none; }
.to-top:hover{ color:var(--cinnabar); border-color:var(--cinnabar); }

/* 可点击卡片 */
.top-card,.top-feature,.m-card{ cursor:pointer; }
.top-feature{ cursor:default; }
.tf-media{ cursor:pointer; }

/* 二级详情弹层 */
.detail-overlay{ position:fixed; inset:0; z-index:200; visibility:hidden; }
.detail-overlay.open{ visibility:visible; }
.detail-backdrop{
  position:absolute; inset:0; background:rgba(20,15,10,.6);
  -webkit-backdrop-filter:blur(4px); backdrop-filter:blur(4px);
  opacity:0; transition:opacity .35s ease;
}
.detail-overlay.open .detail-backdrop{ opacity:1; }
.detail-panel{
  position:absolute; top:0; right:0; height:100%; width:min(560px, 100%);
  background:var(--paper); display:flex; flex-direction:column; overflow:hidden;
  transform:translateX(100%); transition:transform .45s cubic-bezier(.22,1,.36,1);
  box-shadow:-24px 0 60px -30px rgba(0,0,0,.5);
}
.detail-overlay.open .detail-panel{ transform:none; }
.detail-close{
  position:absolute; top:16px; right:16px; z-index:3;
  width:42px; height:42px; display:flex; align-items:center; justify-content:center;
  background:rgba(20,15,10,.5); color:#F6F0E3; border-radius:50%;
  transition:background .25s, transform .25s;
}
.detail-close:hover{ background:var(--cinnabar); transform:rotate(90deg); }
.detail-media{ position:relative; height:280px; flex:none; background:#242018; overflow:hidden; }
.detail-media img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }
.detail-media.dm-block{
  background:linear-gradient(135deg, var(--cinnabar) 0%, var(--cinnabar-d) 100%);
  display:flex; align-items:center; justify-content:center; color:#F6F0E3;
}
.detail-media.dm-block span{ font-family:var(--serif); font-weight:900; font-size:96px; opacity:.9; }
.detail-scroll{ overflow-y:auto; flex:1; }
.detail-body{ padding:clamp(26px,4vw,44px); }
.detail-badges{ display:flex; flex-wrap:wrap; gap:8px; }
.detail-body h3{
  margin-top:16px; font-family:var(--serif); font-weight:900;
  font-size:clamp(26px,3.4vw,36px); line-height:1.3; color:var(--ink);
}
.detail-desc{ margin-top:16px; font-size:15px; line-height:2; color:var(--ink-2); }
.detail-facts{ margin-top:24px; border-top:1px solid var(--line-soft); padding-top:18px; display:grid; gap:10px; }
.detail-facts div{ display:flex; gap:12px; font-size:13.5px; line-height:1.7; }
.detail-facts dt{ flex:none; width:48px; color:var(--gold); letter-spacing:.08em; }
.detail-facts dd{ color:var(--ink-2); }
.detail-back{
  margin-top:30px; display:inline-flex; align-items:center; gap:8px;
  font-size:13px; letter-spacing:.12em; color:var(--cinnabar);
  border:1px solid rgba(158,58,38,.45); padding:10px 20px; transition:all .25s;
}
.detail-back:hover{ background:var(--cinnabar); color:#FFF7EC; }

@media (prefers-reduced-motion:reduce){
  .detail-panel{ transition:none; }
}

/* 响应式 */
@media (max-width:1024px){
  .top-grid{ grid-template-columns:repeat(2,1fr); }
  .m-grid{ grid-template-columns:repeat(2,1fr); }
  .t-grid{ grid-template-columns:repeat(2,1fr); }
  .route-grid{ grid-template-columns:repeat(2,1fr); }
}
@media (max-width:860px){
  .top-feature{ grid-template-columns:1fr; }
  .top-feature .tf-media{ min-height:240px; aspect-ratio:16/9; }
  .top-feature .tf-media img{ position:static; height:100%; }
  .ov-grid{ grid-template-columns:1fr; }
  .foot-main{ grid-template-columns:1fr 1fr; }
  .foot-brand{ grid-column:1 / -1; }
}
@media (max-width:680px){
  .nav-links{
    position:fixed; top:var(--nav-h); left:0; right:0;
    flex-direction:column; align-items:flex-start; gap:0;
    background:rgba(245,240,230,.98); -webkit-backdrop-filter:blur(12px); backdrop-filter:blur(12px);
    border-bottom:1px solid var(--line-soft);
    padding:8px clamp(20px,4.5vw,48px) 18px;
    transform:translateY(-8px); opacity:0; visibility:hidden;
    transition:opacity .3s ease,transform .3s ease,visibility .3s ease;
    color:var(--ink);
  }
  .nav-links.open{ transform:none; opacity:1; visibility:visible; }
  .nav-links a{ display:block; width:100%; padding:13px 0; border-bottom:1px solid var(--line-soft); }
  .nav-links a:last-child{ border-bottom:none; }
  .nav-toggle{ display:flex; }
  .scroll-cue{ display:none; }
  .stats{ grid-template-columns:repeat(2,1fr); }
  .stat:nth-child(odd){ border-left:none; }
  .stat:nth-child(n+3){ border-top:1px solid var(--line-soft); }
  .top-grid{ grid-template-columns:1fr; }
  .m-grid{ grid-template-columns:1fr; }
  .t-grid{ grid-template-columns:1fr; }
  .route-grid{ grid-template-columns:1fr; }
  .more-wrap .more-list{ grid-template-columns:1fr; }
  .foot-main{ grid-template-columns:1fr; gap:28px; }
  .to-top{ right:16px; bottom:16px; }
}
@media (max-width:420px){
  .logo-en{ display:none; }
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{ animation-duration:.01ms !important; transition-duration:.01ms !important; }
  html{ scroll-behavior:auto; }
  .reveal{ opacity:1; transform:none; }
}