:root{--green:#29ac5c;--dark:#123c30;--ink:#182b26;--muted:#828b91;--line:#e2e8e7}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;color:var(--ink);font:15px/1.7 "PingFang SC","Microsoft YaHei",sans-serif;background:#fff}button,input,select,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{cursor:pointer}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #54bd86;outline-offset:4px}header{height:82px;padding:0 max(5%,calc((100vw - 1280px)/2));display:flex;align-items:center;justify-content:space-between;background:#fff;gap:25px}.brand{font:700 28px/1.2 "Songti SC",serif;letter-spacing:4px;color:var(--dark);white-space:nowrap}.brand small{display:block;font:9px/2.8 sans-serif;letter-spacing:5px;color:#899a91}nav{display:flex;gap:44px;align-items:center}header nav a{padding:24px 0;position:relative;font-size:14px}header nav a.active{color:var(--green)}header nav a.active:after{content:"";position:absolute;bottom:14px;left:0;width:100%;height:2px;background:var(--green)}.primary{border:0;background:var(--green);color:white;border-radius:5px;padding:13px 25px;font-size:14px;transition:background .2s,transform .2s}.primary:hover{background:#168c49;transform:translateY(-2px)}.primary span{margin-left:16px;font-size:20px;line-height:1}.photo{background-image:url('landscapes.png');background-repeat:no-repeat;background-size:200% 200%}.winter{background-position:left top}.summer{background-position:right top}.autumn{background-position:left bottom}.snow{background-position:right bottom}.hero{height:575px;position:relative;color:white;display:flex;align-items:center}.hero-content{margin-left:max(7%,calc((100vw - 1240px)/2));position:relative;text-shadow:0 2px 16px #11233780}.hero h1{font:600 56px/1.25 "Songti SC","STSong",serif;letter-spacing:3px;margin:0 0 20px}.hero p{letter-spacing:1px;margin:9px 0;font-size:17px}.hero .dest{font:600 23px/1.8 "Songti SC",serif}.hero .primary{margin-top:27px;padding:16px 32px;text-shadow:none}.hero-note{position:absolute;right:7%;bottom:40px;font:20px/1.7 "Songti SC",serif;letter-spacing:4px;transform:rotate(-8deg)}.wrap{max-width:1280px;margin:auto;padding:0 35px}.services{display:grid;grid-template-columns:repeat(3,1fr);padding-top:40px;padding-bottom:40px}.services article{display:flex;gap:24px;align-items:center;justify-content:center;position:relative}.services article+article:before{content:"";position:absolute;left:0;width:1px;height:60px;background:var(--line)}.services svg{width:44px;height:44px;fill:none;stroke:#198453;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.services h3{margin:0 0 6px;font:600 22px/1.5 "Songti SC",serif;letter-spacing:2px}.services p{margin:0;color:var(--muted);font-size:13px;line-height:1.8}.routes{background:#f3f6f8;padding:58px 0 42px}.section-heading{text-align:center;margin-bottom:28px}.section-heading h2{font:600 34px/1.5 "Songti SC",serif;letter-spacing:2px;margin:0 0 9px}.section-heading p{color:var(--muted);margin:0;font-size:14px;letter-spacing:.5px}.filters{display:flex;justify-content:center;gap:18px;margin:30px 0}.filters button{border:0;border-radius:30px;min-width:108px;padding:9px 20px;background:white;font-size:13px;color:#444}.filters .selected{background:var(--green);color:white}.route-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.route-card{padding:0;text-align:left;background:#fff;border:0;border-radius:6px;overflow:hidden;color:var(--ink);transition:transform .2s,box-shadow .2s}.route-card:hover{transform:translateY(-5px);box-shadow:0 12px 25px #183d3015}.route-card .photo{aspect-ratio:1.6}.card-body{padding:20px 22px;position:relative;min-height:100px}.card-body h3{font:600 19px/1.4 "Songti SC",serif;margin:0 12px 8px 0}.card-body p{font-size:12px;color:var(--muted);margin:0}.card-body>span{position:absolute;right:17px;top:23px;color:#617c70}.route-note{color:#8a959d;font-size:11px;text-align:center;margin:23px 0 0}.seasons{position:relative}.seasons>.section-heading{position:absolute;top:35px;width:100%;z-index:1;pointer-events:none;text-shadow:0 0 18px white}.seasons>.section-heading h2{color:#16372e}.seasons>.section-heading p{color:#465c62}.season-grid{display:grid;grid-template-columns:repeat(4,1fr)}.season-grid button{height:415px;border:0;color:white;position:relative;transition:filter .3s}.season-grid button:hover{filter:brightness(1.08)}.season-grid button:before{content:"";position:absolute;inset:0;background:linear-gradient(transparent 40%,#11263880)}.season-grid button>div{position:absolute;bottom:28px;left:0;right:0}.season-grid h3{font:600 36px/1.3 "Songti SC",serif;margin:0}.season-grid p{font-size:13px;letter-spacing:2px}.season-grid span{display:inline-grid;place-items:center;width:31px;height:31px;border:1px solid white;border-radius:50%}.guide{padding-top:60px;padding-bottom:60px}.guide-list{max-width:940px;margin:35px auto 0}details{border-bottom:1px solid var(--line)}summary{list-style:none;display:flex;gap:25px;padding:18px 0;cursor:pointer}summary::-webkit-details-marker{display:none}summary span{font-size:12px;color:#8eb59f}summary b{margin-left:auto;font-weight:400;color:var(--green)}details p{margin:0;padding:0 35px 22px;color:#697c73;font-size:14px}details[open] summary b{transform:rotate(45deg)}.cta{text-align:center;padding:50px 20px;background:#e8f0f4}.cta h2{font:600 29px/1.5 "Songti SC",serif;margin:0 0 8px}.cta p{color:#778992;font-size:14px;margin:0 0 24px}footer{background:#123c30;color:#c5d5cd}.footer-top{padding-top:40px;padding-bottom:40px;display:flex;align-items:center;justify-content:space-between}.footer-top .brand{color:white}.footer-top nav{font-size:12px;gap:36px}.footer-top p{font:20px/1.6 "Songti SC",serif;letter-spacing:3px}.footer-bottom{border-top:1px solid #ffffff25;display:flex;justify-content:space-between;padding-top:20px;padding-bottom:20px;font-size:11px;color:#8fa99c}dialog{border:0;border-radius:12px;padding:35px;max-width:550px;width:calc(100% - 32px);max-height:90vh;overflow:auto;box-shadow:0 20px 80px #001d2d40;color:var(--ink)}dialog::backdrop{background:#09282d99;backdrop-filter:blur(5px)}dialog h2{font:600 26px/1.5 "Songti SC",serif;margin:0 24px 12px 0}.close{position:absolute;right:15px;top:8px;border:0;background:transparent;font-size:28px;color:#75847d}.muted{color:#839089;font-size:13px}label{display:flex;flex-direction:column;font-size:13px;gap:6px;margin:14px 0}input,select,textarea{border:1px solid #d8e2dc;background:white;border-radius:5px;padding:10px;color:var(--ink);min-width:0}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.notice{font-size:11px}form .primary{width:100%}.timeline{padding-left:23px}.timeline li{padding:8px 0;color:#61766c}.dialog-photo{height:210px;margin:-35px -35px 25px}.saved{padding:15px;background:#eef7f0;border-radius:5px;white-space:pre-wrap;font-size:13px}[hidden]{display:none!important}@media(max-width:800px){header{height:76px;padding:0 20px;gap:15px}.brand{font-size:24px}header nav{gap:17px}header .primary{display:none}.hero{height:530px}.hero h1{font-size:44px}.hero-content{margin-left:6%}.services{padding:28px 20px;gap:16px}.services article{gap:12px}.services h3{font-size:18px}.services svg{width:30px;flex-shrink:0}.services p{font-size:11px}.section-heading h2{font-size:28px}.wrap{padding-left:25px;padding-right:25px}.card-body{padding:17px}.card-body h3{font-size:17px}.card-body p{font-size:11px}.season-grid button{height:360px}.footer-top nav{gap:20px}}@media(max-width:540px){header{flex-wrap:wrap;height:104px;padding:12px 20px;justify-content:center}.brand{font-size:23px;text-align:center}.brand small{line-height:1.8}header nav{width:100%;justify-content:space-between;gap:15px}header nav a{padding:0;font-size:12px}header nav a.active:after{bottom:-5px}.hero{height:490px}.hero h1{font-size:37px;letter-spacing:1px}.hero .dest{font-size:19px}.hero p{font-size:13px}.hero .primary{padding:13px 24px}.hero-note{font-size:15px;bottom:24px}.services{grid-template-columns:1fr;padding-top:26px;padding-bottom:26px;gap:23px}.services article{justify-content:flex-start;max-width:290px;width:100%;margin:auto;gap:20px}.services article+article:before{display:none}.services p br{display:none}.services h3{font-size:19px}.services p{font-size:12px}.services svg{width:35px;height:35px}.routes{padding-top:35px}.section-heading h2{font-size:25px;letter-spacing:0}.section-heading p{font-size:12px;padding:0 12px}.filters{gap:8px;margin:22px 0}.filters button{padding:8px 12px;min-width:0;font-size:12px}.route-grid{grid-template-columns:1fr;gap:20px}.card-body h3{font-size:21px}.card-body p{font-size:12px}.season-grid{grid-template-columns:1fr 1fr}.season-grid button{height:285px}.seasons>.section-heading{position:static;padding:30px 15px;margin:0}.season-grid h3{font-size:33px}.season-grid p{font-size:12px;letter-spacing:0}.guide{padding-top:38px;padding-bottom:38px}summary{gap:15px;font-size:14px}details p{padding-left:29px;font-size:13px}.cta h2{font-size:25px}.footer-top{flex-wrap:wrap;gap:20px}.footer-top nav{order:3;width:100%;justify-content:center}.footer-top p{font-size:16px}.footer-bottom{flex-direction:column;gap:8px;text-align:center}dialog{padding:27px}.dialog-photo{margin:-27px -27px 20px}.hero{background-size:auto 200%;background-position:15% top}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
/* Keep the seasonal introduction readable across all four photos. */
.seasons>.section-heading{position:static;padding:34px 20px 30px;margin:0;background:#fff;text-shadow:none}.spring{background-image:url('spring.png');background-size:cover;background-position:center}.cta{position:relative;background:linear-gradient(#e8f0f4db,#e8f0f4db),url('landscapes.png') right bottom/200% 200%}.cta h2,.cta p,.cta button{position:relative}