/* ================= 全站统一头部导航 brand:gnav ================= */
.gnav{position:sticky;top:0;z-index:200;background:rgba(247,245,240,.94);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:0 1px 0 rgba(47,74,62,.12);transition:background .35s,box-shadow .35s}
.gnav.scrolled{background:rgba(247,245,240,.98);box-shadow:0 12px 34px -26px rgba(43,43,40,.6)}
/* 首页：压在 Hero 之上，透明 → 滚动后实体 */
.gnav.over-hero{position:fixed;left:0;right:0;background:transparent;box-shadow:none}
.gnav.over-hero.scrolled{background:rgba(247,245,240,.96);box-shadow:0 1px 0 rgba(47,74,62,.12)}
.gnav .gin{position:relative;max-width:1680px;margin:0 auto;height:88px;
  padding:0 clamp(18px,3vw,64px);display:flex;align-items:center;justify-content:space-between;gap:18px}
/* ---------- 品牌区：徽标 + 中文字标 + 拼音对齐 ---------- */
.gnav .gbrand{display:inline-flex;align-items:center;gap:14px;flex:0 0 auto}
.gnav .gbrand .gmark{width:48px;height:48px;display:block;flex:0 0 auto;
  filter:drop-shadow(0 5px 11px rgba(47,74,62,.18));transition:width .3s,height .3s}
.gnav.scrolled .gbrand .gmark{width:42px;height:42px}
.gnav .gbrand .gtx{display:block;font-family:"Songti SC","STSong","SimSun","Noto Serif SC",serif;
  font-size:24px;font-weight:700;color:#2f4a3e;letter-spacing:.18em;margin-right:-.18em;
  line-height:1.05;transition:color .35s,font-size .3s}
.gnav .gbrand .gtx em{font-style:normal;display:block}
.gnav .gbrand .gtx small{display:flex;justify-content:space-between;align-items:baseline;
  font-family:"PingFang SC","Microsoft YaHei",sans-serif;font-size:10.5px;font-weight:400;
  letter-spacing:.08em;color:#9c6b4a;margin-top:5px}
.gnav .gbrand .gtx small b{font-weight:400;font-size:11px;opacity:.62}
.gnav.scrolled .gbrand .gtx{font-size:22px}
.gnav.over-hero .gbrand .gtx{color:#fff;text-shadow:0 2px 12px rgba(0,0,0,.4)}
.gnav.over-hero .gbrand .gtx small{color:rgba(255,255,255,.82)}
.gnav.over-hero.scrolled .gbrand .gtx{color:#2f4a3e;text-shadow:none}
.gnav.over-hero.scrolled .gbrand .gtx small{color:#9c6b4a}
.gnav .gtoggle{display:none;background:none;border:none;font-size:22px;line-height:1;cursor:pointer;
  color:#2f4a3e;padding:6px 8px}
.gnav.over-hero .gtoggle{color:#fff}
.gnav.over-hero.scrolled .gtoggle{color:#2f4a3e}
/* ---------- 右侧操作区：全站搜索入口 + 移动端菜单按钮 ---------- */
.gnav .gact{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.gnav .gsearch{width:38px;height:38px;display:flex;align-items:center;justify-content:center;
  background:none;border:1px solid transparent;border-radius:50%;cursor:pointer;padding:0;
  color:#3f3f39;transition:color .25s,border-color .25s,background .25s}
.gnav .gsearch svg{width:19px;height:19px;display:block}
.gnav .gsearch:hover{color:#2f4a3e;border-color:rgba(176,141,87,.62);background:rgba(176,141,87,.09)}
.gnav.over-hero .gsearch{color:#fff;text-shadow:0 2px 10px rgba(0,0,0,.35)}
.gnav.over-hero .gsearch:hover{color:#fff;background:rgba(255,255,255,.16);
  border-color:rgba(255,255,255,.5);text-shadow:none}
.gnav.over-hero.scrolled .gsearch{color:#3f3f39;text-shadow:none}
.gnav.over-hero.scrolled .gsearch:hover{color:#2f4a3e;background:rgba(176,141,87,.09);
  border-color:rgba(176,141,87,.62)}
.gnav .gmenu{display:flex;align-items:center;gap:clamp(6px,1.25vw,26px);list-style:none;margin:0;padding:0}
.gnav .gmenu > li{position:relative}
.gnav .gmenu > li.mega{position:static}
.gnav .gmenu > li > a{position:relative;display:inline-flex;align-items:center;gap:5px;
  padding:34px 3px;font-size:14.5px;letter-spacing:.1em;color:#3f3f39;white-space:nowrap;transition:color .25s}
.gnav .gmenu > li > a i{font-style:normal;font-size:9px;opacity:.5;transform:translateY(1px);transition:transform .25s}
.gnav .gmenu > li > a::after{content:"";position:absolute;left:0;right:0;bottom:28px;height:2px;
  background:#b08d57;transform:scaleX(0);transform-origin:center;transition:transform .3s}
.gnav .gmenu > li:hover > a,.gnav .gmenu > li.on > a{color:#2f4a3e}
.gnav .gmenu > li:hover > a::after,.gnav .gmenu > li.on > a::after{transform:scaleX(1)}
.gnav .gmenu > li:hover > a i{transform:translateY(1px) rotate(180deg)}
.gnav.over-hero .gmenu > li > a{color:rgba(255,255,255,.92);text-shadow:0 2px 10px rgba(0,0,0,.35)}
.gnav.over-hero .gmenu > li:hover > a,.gnav.over-hero .gmenu > li.on > a{color:#fff}
.gnav.over-hero.scrolled .gmenu > li > a{color:#3f3f39;text-shadow:none}
.gnav.over-hero.scrolled .gmenu > li:hover > a,.gnav.over-hero.scrolled .gmenu > li.on > a{color:#2f4a3e}
/* 二级面板：纯白底（无底纹），背景交由该栏目代表实景图承担 */
.gnav .gsub{position:absolute;top:100%;left:50%;transform:translate(-50%,12px);min-width:246px;
  background:#fff;border:1px solid rgba(47,74,62,.13);border-radius:14px;padding:12px;
  box-shadow:0 34px 64px -34px rgba(43,43,40,.55);opacity:0;visibility:hidden;
  transition:opacity .26s ease,transform .26s ease,visibility .26s;z-index:5}
.gnav .gmenu > li.mega > .gsub{left:0;right:0;min-width:0;transform:translateY(12px);padding:24px clamp(18px,3vw,64px)}
/* 面板背景：该栏目代表实景图，透明度 20%，由下往上渐显 */
.gnav .gsub::before{content:"";position:absolute;inset:0;border-radius:inherit;z-index:0;pointer-events:none;
  background-image:var(--subimg,none);background-size:cover;background-position:center bottom;
  background-repeat:no-repeat;opacity:.2;
  -webkit-mask-image:linear-gradient(to top,#000 0%,rgba(0,0,0,.62) 42%,rgba(0,0,0,0) 94%);
  mask-image:linear-gradient(to top,#000 0%,rgba(0,0,0,.62) 42%,rgba(0,0,0,0) 94%)}
.gnav .gsub > *{position:relative;z-index:1}
.gnav .gmenu > li:hover > .gsub,.gnav .gmenu > li:focus-within > .gsub{opacity:1;visibility:visible;transform:translate(-50%,0)}
.gnav .gmenu > li.mega:hover > .gsub,.gnav .gmenu > li.mega:focus-within > .gsub{transform:translateY(0)}
.gnav .gsub a{display:block;padding:9px 13px;border-radius:9px;transition:background .22s,color .22s}
.gnav .gsub a:hover{background:#f2f0ea}
.gnav .gsub a b{display:block;font-size:13.8px;font-weight:600;color:#2f4a3e;letter-spacing:.08em}
.gnav .gsub a span{display:block;margin-top:3px;font-size:11.5px;color:#83837a;letter-spacing:.02em}
.gnav .gsub a:hover b{color:#9c6b4a}
.gnav .gmega{display:grid;gap:4px 30px;max-width:1680px;margin:0 auto}
.gnav .gmega.c1{grid-template-columns:1fr}
.gnav .gmega.c2{grid-template-columns:repeat(2,1fr)}
.gnav .gmega.c3{grid-template-columns:repeat(3,1fr)}
.gnav .gcol .gch{font-size:11px;letter-spacing:.26em;color:#b08d57;padding:0 13px 8px;
  border-bottom:1px solid rgba(47,74,62,.13);margin-bottom:6px}
.gnav .gmega a{padding:7px 13px;font-size:13.5px;color:#42423c;letter-spacing:.05em}
.gnav .gmega a:hover{color:#2f4a3e}
.gnav .gcol + .gcol{border-left:1px solid rgba(47,74,62,.08);padding-left:30px}
/* 中屏压缩：9 个顶级项在 1080–1500px 之间不挤压 */
@media (max-width:1500px){
  .gnav .gin{height:84px}
  .gnav .gmenu{gap:clamp(5px,1.05vw,18px)}
  .gnav .gmenu > li > a{padding:32px 2px;font-size:13.7px;letter-spacing:.05em}
  .gnav .gmenu > li > a::after{bottom:26px}
  .gnav .gbrand .gmark{width:44px;height:44px}
  .gnav .gbrand .gtx{font-size:22px}
  .gnav .gbrand .gtx small{font-size:10px}
}
@media (max-width:1240px){
  .gnav .gbrand .gtx{font-size:20px}
  .gnav .gbrand .gmark{width:40px;height:40px}
  .gnav .gmenu > li > a{font-size:13.2px}
}
@media (max-width:1080px){
  .gnav{backdrop-filter:none;-webkit-backdrop-filter:none;background:rgba(247,245,240,.98)}
  .gnav.over-hero{background:transparent}
  .gnav.over-hero.scrolled{background:rgba(247,245,240,.98)}
  .gnav .gin{height:88px}
  .gnav .gbrand .gmark,.gnav.scrolled .gbrand .gmark{width:46px;height:46px}
  .gnav .gbrand .gtx,.gnav.scrolled .gbrand .gtx{font-size:23px}
  .gnav .gtoggle{display:block}
  .gnav .gmenu{position:fixed;top:88px;right:0;bottom:0;width:min(88vw,350px);z-index:210;
    flex-direction:column;align-items:stretch;gap:0;padding:12px 20px 70px;overflow-y:auto;
    background:#fbfaf7;box-shadow:-24px 0 60px -34px rgba(0,0,0,.5);
    transform:translateX(103%);transition:transform .36s ease}
  .gnav .gmenu.open{transform:none}
  .gnav .gmenu > li > a{justify-content:space-between;padding:14px 2px;font-size:14.5px;
    border-bottom:1px solid rgba(47,74,62,.1);color:#3f3f39 !important;text-shadow:none !important}
  .gnav .gmenu > li > a::after{display:none}
  .gnav .gsub,.gnav .gmenu > li.mega > .gsub{position:static;left:auto;right:auto;transform:none;
    min-width:0;opacity:1;visibility:visible;background:transparent;border:none;border-radius:0;
    box-shadow:none;padding:2px 0 10px 8px}
  .gnav .gsub::before{display:none}
  .gnav .gmenu>li:hover>.gsub,.gnav .gmenu>li:focus-within>.gsub,
  .gnav .gmenu>li.mega:hover>.gsub,.gnav .gmenu>li.mega:focus-within>.gsub{transform:none}
  .gnav .gmega.c1,.gnav .gmega.c2,.gnav .gmega.c3{grid-template-columns:1fr}
  .gnav .gcol + .gcol{border-left:none;padding-left:0;margin-top:8px}
  .gnav .gsub a:hover{background:rgba(47,74,62,.06)}
  /* 移动端：搜索按钮保持可见（菜单抽屉之外也能点） */
  .gnav .gact{gap:0}
  .gnav .gsearch{width:42px;height:42px}
  .gnav .gsearch svg{width:21px;height:21px}
}

.gnav .gmenu>li.g-about:hover>.gsub,.gnav .gmenu>li.g-about:focus-within>.gsub{--subimg:url("/images/real/chengshi-05.jpg")}
.gnav .gmenu>li.g-zisha:hover>.gsub,.gnav .gmenu>li.g-zisha:focus-within>.gsub{--subimg:url("/images/real/zisha-23.jpg")}
.gnav .gmenu>li.g-hiking:hover>.gsub,.gnav .gmenu>li.g-hiking:focus-within>.gsub{--subimg:url("/images/real/shanshui-12.jpg")}
.gnav .gmenu>li.g-spots:hover>.gsub,.gnav .gmenu>li.g-spots:focus-within>.gsub{--subimg:url("/images/real/shanshui-16.jpg")}
.gnav .gmenu>li.g-gallery:hover>.gsub,.gnav .gmenu>li.g-gallery:focus-within>.gsub{--subimg:url("/images/real/shanshui-26.jpg")}
.gnav .gmenu>li.g-towns:hover>.gsub,.gnav .gmenu>li.g-towns:focus-within>.gsub{--subimg:url("/images/real/xiangcun-04.jpg")}
.gnav .gmenu>li.g-taste:hover>.gsub,.gnav .gmenu>li.g-taste:focus-within>.gsub{--subimg:url("/images/real/meishi-02.jpg")}
.gnav .gmenu>li.g-service:hover>.gsub,.gnav .gmenu>li.g-service:focus-within>.gsub{--subimg:url("/images/real/chengshi-13.jpg")}