/* ========== 基础变量 & 重置 ========== */
:root{
  --teal:#0d9488; --teal-l:#2dd4bf; --sky:#0ea5e9; --sky-l:#38bdf8;
  --green:#16a34a; --green-l:#4ade80; --amber:#f59e0b;
  --ink:#0f2e2b; --ink-2:#3b5b57; --paper:#f3fbf9; --white:#ffffff;
  --shadow:0 18px 40px -18px rgba(13,148,136,.35);
  --shadow-lg:0 30px 70px -25px rgba(13,148,136,.45);
  --radius:22px; --radius-lg:30px;
  --serif:'Noto Serif SC',serif; --sans:'Noto Sans SC',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans); color:var(--ink); background:var(--paper);
  overflow-x:hidden; line-height:1.7; -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
::selection{background:var(--teal-l);color:#fff}

/* ========== 导航 ========== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:.4s; padding:18px 0;
}
.nav.scrolled{
  background:rgba(255,255,255,.82); backdrop-filter:blur(14px);
  box-shadow:0 8px 30px -12px rgba(13,148,136,.25); padding:12px 0;
}
.nav-inner{
  max-width:1200px;margin:0 auto;padding:0 28px;
  display:flex;align-items:center;justify-content:space-between;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;color:#fff;transition:.4s}
.nav.scrolled .brand{color:var(--ink)}
.brand-leaf{font-size:24px;animation:sway 3s ease-in-out infinite}
@keyframes sway{0%,100%{transform:rotate(-8deg)}50%{transform:rotate(8deg)}}
.nav-links{display:flex;gap:30px}
.nav-links a{position:relative;font-weight:500;font-size:15px;color:#fff;opacity:.92;transition:.3s}
.nav.scrolled .nav-links a{color:var(--ink-2)}
.nav-links a::after{
  content:'';position:absolute;left:0;bottom:-6px;width:0;height:2px;
  background:var(--teal);border-radius:2px;transition:.3s;
}
.nav-links a:hover{opacity:1}
.nav-links a:hover::after{width:100%}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.nav-toggle span{width:26px;height:2.5px;background:#fff;border-radius:2px;transition:.3s}
.nav.scrolled .nav-toggle span{background:var(--ink)}

/* ========== 英雄区 ========== */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;
  text-align:center;color:#fff;overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;z-index:-2;
  background:
    radial-gradient(ellipse at 20% 20%,rgba(94,234,212,.5),transparent 50%),
    radial-gradient(ellipse at 80% 30%,rgba(56,189,248,.45),transparent 50%),
    linear-gradient(160deg,#0d9488 0%,#0891b2 45%,#0369a1 100%);
}
.hero-bg::after{
  content:'';position:absolute;inset:0;
  background-image:radial-gradient(circle at 50% 50%,rgba(255,255,255,.08) 1px,transparent 1px);
  background-size:34px 34px;opacity:.6;
}
.hero-waves{position:absolute;bottom:-2px;left:0;right:0;z-index:-1;line-height:0}
.hero-waves svg{width:100%;height:160px}
.hero-waves path{fill:var(--paper)}
.floaty{position:absolute;font-size:42px;opacity:.85;filter:drop-shadow(0 8px 14px rgba(0,0,0,.2));z-index:-1}
.f1{top:22%;left:12%;animation:float 6s ease-in-out infinite}
.f2{top:35%;right:14%;font-size:36px;animation:float 5s ease-in-out infinite .8s}
.f3{bottom:30%;left:18%;font-size:30px;animation:float 7s ease-in-out infinite .4s}
.f4{top:18%;right:24%;font-size:38px;animation:float 6.5s ease-in-out infinite 1.2s}
@keyframes float{0%,100%{transform:translateY(0) rotate(-4deg)}50%{transform:translateY(-26px) rotate(6deg)}}
.hero-content{position:relative;z-index:2;padding:0 24px;max-width:880px;animation:rise 1s cubic-bezier(.2,.8,.2,1)}
@keyframes rise{from{opacity:0;transform:translateY(40px)}to{opacity:1;transform:translateY(0)}}
.hero-badge{
  display:inline-block;padding:8px 20px;border:1.5px solid rgba(255,255,255,.5);
  border-radius:50px;font-size:13px;letter-spacing:2px;backdrop-filter:blur(6px);
  background:rgba(255,255,255,.1);margin-bottom:26px;
}
.hero-title{font-family:var(--serif);font-weight:900;font-size:clamp(44px,8vw,92px);line-height:1.08;letter-spacing:2px;text-shadow:0 10px 40px rgba(0,0,0,.25)}
.grad{background:linear-gradient(120deg,#fef9c3,#a7f3d0,#bae6fd);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin:24px auto 0;font-size:clamp(15px,2vw,19px);font-weight:300;opacity:.95;max-width:560px}
.hero-actions{margin-top:38px;display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:15px 32px;border-radius:50px;
  font-weight:700;font-size:15px;cursor:pointer;border:0;transition:.35s;
}
.btn-primary{background:#fff;color:var(--teal);box-shadow:0 14px 30px -10px rgba(0,0,0,.35)}
.btn-primary span{transition:.3s}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 20px 40px -10px rgba(0,0,0,.4)}
.btn-primary:hover span{transform:translateX(5px)}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border:1.5px solid rgba(255,255,255,.5);backdrop-filter:blur(6px)}
.btn-ghost:hover{background:rgba(255,255,255,.26);transform:translateY(-3px)}
.hero-stats{margin-top:54px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.stat{
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);
  backdrop-filter:blur(8px);border-radius:18px;padding:16px 26px;min-width:118px;transition:.35s;
}
.stat:hover{background:rgba(255,255,255,.22);transform:translateY(-5px)}
.stat b{display:block;font-family:var(--serif);font-size:30px;font-weight:900}
.stat span{font-size:13px;opacity:.9}
.scroll-hint{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);width:26px;height:42px;border:2px solid rgba(255,255,255,.6);border-radius:14px;z-index:3}
.scroll-hint span{position:absolute;top:8px;left:50%;transform:translateX(-50%);width:4px;height:8px;background:#fff;border-radius:2px;animation:scrolldot 1.6s infinite}
@keyframes scrolldot{0%{opacity:0;top:8px}40%{opacity:1}80%{opacity:0;top:24px}}

/* ========== 通用 section ========== */
.section{max-width:1200px;margin:0 auto;padding:100px 28px}
.section-head{text-align:center;max-width:680px;margin:0 auto 56px}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:3px;color:var(--teal);background:rgba(45,212,191,.14);padding:6px 16px;border-radius:30px}
.section-title{font-family:var(--serif);font-weight:900;font-size:clamp(30px,5vw,46px);margin:18px 0 14px;letter-spacing:1px}
.section-desc{color:var(--ink-2);font-weight:300;font-size:16px}

/* reveal 动画 */
.reveal{opacity:0;transform:translateY(40px);transition:.8s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ========== 筛选 + 地点卡 ========== */
.filter-bar{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:42px}
.filter-btn{
  padding:10px 24px;border-radius:50px;border:1.5px solid rgba(13,148,136,.2);
  background:#fff;color:var(--ink-2);font-weight:500;font-size:14px;cursor:pointer;transition:.3s;
}
.filter-btn:hover{border-color:var(--teal);color:var(--teal)}
.filter-btn.active{background:var(--teal);color:#fff;border-color:var(--teal);box-shadow:var(--shadow)}
.spot-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:28px}
.spot-card{
  background:#fff;border-radius:var(--radius);overflow:hidden;cursor:pointer;
  box-shadow:var(--shadow);transition:.45s cubic-bezier(.2,.8,.2,1);position:relative;
}
.spot-card:hover{transform:translateY(-10px);box-shadow:var(--shadow-lg)}
.spot-cover{height:172px;position:relative;display:flex;align-items:center;justify-content:center;overflow:hidden}
.spot-cover::after{content:'';position:absolute;inset:0;background-image:radial-gradient(circle at 30% 30%,rgba(255,255,255,.25),transparent 40%);}
.spot-emoji{font-size:62px;filter:drop-shadow(0 10px 16px rgba(0,0,0,.2));transition:.5s;position:relative;z-index:1}
.spot-card:hover .spot-emoji{transform:scale(1.18) rotate(-8deg)}
.spot-tag{position:absolute;top:14px;left:14px;background:rgba(255,255,255,.92);color:var(--ink);font-size:12px;font-weight:700;padding:5px 13px;border-radius:30px;z-index:2}
.spot-level{position:absolute;top:14px;right:14px;font-size:11px;font-weight:700;padding:5px 12px;border-radius:30px;color:#fff;z-index:2}
.spot-level.easy{background:rgba(34,197,94,.92)}
.spot-level.mid{background:rgba(245,158,11,.95)}
.spot-body{padding:22px 22px 24px}
.spot-name{font-family:var(--serif);font-size:22px;font-weight:700;display:flex;align-items:center;gap:8px}
.spot-region{font-size:13px;color:var(--ink-2);margin:6px 0 12px;display:flex;align-items:center;gap:5px}
.spot-summary{font-size:14px;color:var(--ink-2);font-weight:300;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.spot-meta{margin-top:16px;display:flex;justify-content:space-between;align-items:center;border-top:1px dashed rgba(13,148,136,.18);padding-top:14px}
.score{font-size:13px;color:var(--ink-2)}
.score b{color:var(--amber);letter-spacing:1px}
.spot-more{color:var(--teal);font-weight:700;font-size:13px;display:flex;align-items:center;gap:4px;transition:.3s}
.spot-card:hover .spot-more{gap:9px}

/* ========== 地图 ========== */
.section-map{max-width:1280px}
.map-wrap{display:grid;grid-template-columns:330px 1fr;gap:22px;background:#fff;border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow-lg)}
.map-side{display:flex;flex-direction:column;gap:12px;max-height:560px;overflow-y:auto;padding-right:6px}
.map-side::-webkit-scrollbar{width:6px}
.map-side::-webkit-scrollbar-thumb{background:rgba(13,148,136,.3);border-radius:6px}
.map-item{
  display:flex;gap:13px;align-items:center;padding:14px;border-radius:16px;cursor:pointer;
  border:1.5px solid transparent;background:var(--paper);transition:.3s;
}
.map-item:hover{border-color:rgba(13,148,136,.3);transform:translateX(4px)}
.map-item.active{background:linear-gradient(120deg,#0d9488,#0891b2);color:#fff;box-shadow:var(--shadow)}
.map-item.active .mi-region{color:rgba(255,255,255,.85)}
.mi-emoji{font-size:30px;flex-shrink:0}
.mi-name{font-weight:700;font-size:15px}
.mi-region{font-size:12px;color:var(--ink-2)}
.map-canvas-wrap{position:relative;border-radius:var(--radius);overflow:hidden;min-height:560px}
#mapContainer{width:100%;height:100%;min-height:560px}
.map-legend{position:absolute;bottom:14px;left:14px;background:rgba(255,255,255,.92);backdrop-filter:blur(6px);border-radius:30px;padding:8px 16px;font-size:12px;font-weight:500;display:flex;align-items:center;gap:8px;box-shadow:var(--shadow);z-index:5}
.dot{width:11px;height:11px;border-radius:50%;display:inline-block;margin-left:6px}
.dot-easy{background:#22c55e}
.dot-mid{background:#f59e0b}
.spot-divicon{background:transparent!important;border:none!important}
.leaflet-popup-content{font-family:var(--sans)!important;margin:12px 14px}
.leaflet-popup-content-wrapper{border-radius:14px}
.leaflet-container{font-family:var(--sans);background:#dfeae6}
#mapContainer{z-index:1}
.map-legend{z-index:600!important}

/* ========== 物品清单 ========== */
.section-checklist{background:linear-gradient(180deg,transparent,rgba(45,212,191,.06),transparent)}
.progress-card{max-width:620px;margin:0 auto 48px;background:#fff;border-radius:var(--radius);padding:24px 28px;box-shadow:var(--shadow)}
.progress-info{display:flex;justify-content:space-between;margin-bottom:14px;font-size:15px}
.progress-info strong{font-family:var(--serif);color:var(--teal);font-size:18px}
.progress-track{height:14px;background:rgba(13,148,136,.12);border-radius:30px;overflow:hidden}
.progress-fill{height:100%;width:0;border-radius:30px;background:linear-gradient(90deg,#2dd4bf,#0ea5e9);transition:width .6s cubic-bezier(.2,.8,.2,1)}
.checklist-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:24px}
.check-card{background:#fff;border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);transition:.4s;border-top:5px solid var(--teal)}
.check-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.check-head{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.check-icon{width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:24px;color:#fff}
.check-title{font-family:var(--serif);font-size:19px;font-weight:700}
.check-list{list-style:none}
.check-list li{margin-bottom:11px}
.check-list label{display:flex;align-items:flex-start;gap:11px;cursor:pointer;font-size:14.5px;color:var(--ink-2);transition:.25s;user-select:none}
.check-list label:hover{color:var(--ink)}
.check-list input{display:none}
.cb{width:21px;height:21px;border-radius:7px;border:2px solid rgba(13,148,136,.4);flex-shrink:0;margin-top:1px;position:relative;transition:.25s}
.cb::after{content:'✓';position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:#fff;font-size:13px;font-weight:700;opacity:0;transform:scale(.4);transition:.25s}
.check-list input:checked + .cb{background:var(--teal);border-color:var(--teal)}
.check-list input:checked + .cb::after{opacity:1;transform:scale(1)}
.check-list input:checked ~ .cb-text{text-decoration:line-through;opacity:.5}

/* ========== 安全须知 ========== */
.safety-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:24px}
.safety-card{
  background:#fff;border-radius:var(--radius);padding:30px 26px;box-shadow:var(--shadow);
  position:relative;overflow:hidden;transition:.4s;
}
.safety-card::before{content:'';position:absolute;top:0;left:0;width:100%;height:4px;background:linear-gradient(90deg,#ef4444,#f59e0b)}
.safety-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.safety-ico{font-size:42px;margin-bottom:14px;display:block}
.safety-card h4{font-family:var(--serif);font-size:20px;margin-bottom:10px}
.safety-card p{font-size:14.5px;color:var(--ink-2);font-weight:300}
.safety-quote{
  margin-top:50px;text-align:center;background:linear-gradient(120deg,#0d9488,#0891b2);
  color:#fff;border-radius:var(--radius-lg);padding:48px 30px;box-shadow:var(--shadow-lg);position:relative;overflow:hidden;
}
.safety-quote::before{content:'"';position:absolute;top:-20px;left:30px;font-size:160px;font-family:var(--serif);opacity:.12}
.safety-quote p{font-family:var(--serif);font-size:clamp(18px,3vw,26px);font-weight:700;line-height:1.7;position:relative}
.safety-quote span{display:block;margin-top:16px;opacity:.85;font-size:14px}

/* ========== 行程时间线 ========== */
.timeline{max-width:920px;margin:0 auto;position:relative}
.timeline::before{content:'';position:absolute;left:32px;top:10px;bottom:10px;width:3px;background:linear-gradient(180deg,#2dd4bf,#0ea5e9,#d97706);border-radius:3px}
.tl-item{position:relative;padding-left:84px;margin-bottom:36px}
.tl-dot{position:absolute;left:14px;top:4px;width:38px;height:38px;border-radius:50%;background:#fff;border:3px solid var(--teal);display:flex;align-items:center;justify-content:center;font-size:16px;z-index:2;box-shadow:0 6px 16px -6px rgba(13,148,136,.5)}
.tl-card{background:#fff;border-radius:var(--radius);padding:26px 28px;box-shadow:var(--shadow);transition:.4s}
.tl-card:hover{transform:translateX(8px);box-shadow:var(--shadow-lg)}
.tl-head{display:flex;align-items:center;gap:12px;margin-bottom:16px;flex-wrap:wrap}
.tl-day{font-family:var(--serif);font-weight:900;font-size:22px;color:#fff;padding:5px 16px;border-radius:12px}
.tl-theme{font-weight:700;font-size:17px}
.tl-list{list-style:none}
.tl-list li{position:relative;padding-left:22px;margin-bottom:9px;font-size:14.5px;color:var(--ink-2)}
.tl-list li::before{content:'';position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%;background:var(--teal-l)}

/* ========== 页脚 ========== */
.footer{background:linear-gradient(160deg,#0f2e2b,#0d3b3a);color:#fff;padding:64px 28px 40px;text-align:center;margin-top:40px}
.footer-inner{max-width:680px;margin:0 auto}
.footer-brand{font-family:var(--serif);font-size:24px;font-weight:700;margin-bottom:16px}
.footer p{opacity:.78;font-weight:300;margin-bottom:22px}
.footer-tags{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:26px}
.footer-tags span{background:rgba(255,255,255,.1);padding:7px 16px;border-radius:30px;font-size:13px;transition:.3s}
.footer-tags span:hover{background:rgba(45,212,191,.3)}
.footer small{opacity:.5;font-size:12.5px}

/* ========== 弹窗 ========== */
.modal{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;padding:24px}
.modal.open{display:flex;animation:fadein .3s}
@keyframes fadein{from{opacity:0}to{opacity:1}}
.modal-mask{position:absolute;inset:0;background:rgba(8,40,38,.55);backdrop-filter:blur(6px)}
.modal-card{position:relative;background:#fff;border-radius:var(--radius-lg);max-width:560px;width:100%;max-height:88vh;overflow-y:auto;box-shadow:0 40px 90px -20px rgba(0,0,0,.5);animation:pop .4s cubic-bezier(.2,.9,.2,1)}
@keyframes pop{from{transform:scale(.9) translateY(20px);opacity:0}to{transform:none;opacity:1}}
.modal-cover{height:160px;display:flex;align-items:center;justify-content:center;position:relative}
.modal-cover .spot-emoji{font-size:72px}
.modal-close{position:absolute;top:16px;right:16px;width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.9);border:0;font-size:20px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.3s;z-index:3}
.modal-close:hover{transform:rotate(90deg);background:#fff}
.modal-body{padding:28px 30px 32px}
.modal-body h3{font-family:var(--serif);font-size:26px;margin-bottom:6px}
.modal-body .m-region{color:var(--ink-2);font-size:14px;margin-bottom:18px}
.modal-body .m-sum{color:var(--ink-2);font-size:15px;margin-bottom:22px;font-weight:300}
.m-sub{font-weight:700;font-size:15px;margin:18px 0 12px;display:flex;align-items:center;gap:7px}
.m-high{list-style:none;display:grid;gap:9px}
.m-high li{display:flex;gap:9px;align-items:flex-start;font-size:14px;color:var(--ink-2)}
.m-high li::before{content:'✦';color:var(--teal)}
.m-box{background:var(--paper);border-radius:16px;padding:16px 18px;font-size:14px;color:var(--ink-2);margin-top:8px;border-left:4px solid var(--amber)}
.m-best{margin-top:14px;display:inline-flex;align-items:center;gap:7px;background:rgba(45,212,191,.14);color:var(--teal);padding:8px 16px;border-radius:30px;font-size:13.5px;font-weight:500}
.m-mapbtn{margin-top:22px;width:100%;justify-content:center}

/* ========== 响应式 ========== */
@media(max-width:900px){
  .map-wrap{grid-template-columns:1fr}
  .map-side{flex-direction:row;max-height:none;overflow-x:auto;padding-bottom:8px}
  .map-item{min-width:200px}
}
@media(max-width:768px){
  .nav-links{
    position:absolute;top:100%;right:20px;flex-direction:column;background:#fff;
    padding:18px 22px;border-radius:18px;box-shadow:var(--shadow-lg);gap:16px;
    transform:translateY(-12px) scale(.96);opacity:0;pointer-events:none;transition:.3s;
  }
  .nav-links.show{transform:none;opacity:1;pointer-events:all}
  .nav-links a{color:var(--ink)!important}
  .nav-links a::after{display:none}
  .nav-toggle{display:flex}
  .section{padding:70px 20px}
  .hero-stats{gap:10px}
  .stat{min-width:90px;padding:12px 16px}
  .stat b{font-size:24px}
  .timeline::before{left:22px}
  .tl-item{padding-left:64px}
  .tl-dot{left:4px}
}