@charset "UTF-8";
:root{--ink:#19332e;--deep:#102926;--night:#0c2421;--paper:#f4f0e6;--paper2:#e9e2d5;--gold:#d5ad68;--ochre:#aa8047;--green:#588c70;--muted:#6b756d;--line:#cfc8b9;--serif:"Songti SC","STSong","Noto Serif CJK SC","Source Han Serif SC",serif;--sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased}img{display:block;max-width:100%}a{color:inherit;text-decoration:none}button{font:inherit}::selection{background:#b9ccb8;color:var(--deep)}:focus-visible{outline:2px solid var(--gold);outline-offset:4px}.shell{width:min(100% - 88px,1440px);margin-inline:auto}.skip-link{position:absolute;left:20px;top:-80px;z-index:100;padding:12px 18px;background:#fff;color:#152d29}.skip-link:focus{top:10px}
.site-header{position:relative;z-index:10;background:var(--deep);color:#f3efe2;border-bottom:1px solid #355047;height:80px}.header-inner{height:100%;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:11px;white-space:nowrap}.brand-seal{display:grid;place-items:center;width:36px;height:36px;border:1px solid var(--gold);color:var(--gold);font:600 22px/1 var(--serif);transform:rotate(-4deg)}.brand-name{font:600 20px/1.1 var(--serif);letter-spacing:.12em}.brand-name small{display:block;margin-top:5px;color:#a6b4a8;font:500 8px/1 var(--sans);letter-spacing:.25em}.site-nav{display:flex;gap:42px;margin-left:auto}.site-nav a{font-size:13px;letter-spacing:.12em;color:#d7dfd5;transition:color .2s}.site-nav a:hover,.header-link:hover{color:var(--gold)}.header-link{display:flex;align-items:center;gap:28px;padding-bottom:7px;border-bottom:1px solid var(--gold);font-size:13px;letter-spacing:.1em;white-space:nowrap}.header-link span{font-size:18px}
.hero{position:relative;min-height:770px;overflow:hidden;background:radial-gradient(circle at 22% 35%,#1e4039 0%,var(--deep) 45%,#0b201e 100%);color:#f2eee2}.hero-map-panel{position:absolute;inset:0 0 0 44%;overflow:hidden;background:#bec9ad}.hero-map-panel:before{content:"";position:absolute;inset:0;z-index:2;background:linear-gradient(90deg,var(--deep) 0%,rgba(16,41,38,.95) 6%,rgba(16,41,38,.42) 34%,rgba(16,41,38,0) 70%),linear-gradient(0deg,rgba(12,36,33,.7),transparent 24%);pointer-events:none}.hero-map-panel img{width:100%;height:112%;object-fit:cover;object-position:center 49%;filter:saturate(.83) contrast(1.04)}.hero-inner{position:relative;z-index:3;min-height:590px;display:flex;align-items:center;justify-content:space-between;gap:35px;padding-top:24px;padding-bottom:32px}.hero-content{width:min(58%,690px);padding:35px 0}.hero-overline{display:flex;align-items:center;gap:12px;margin:0;color:var(--gold);font-size:11px;font-weight:600;letter-spacing:.25em}.hero-overline span{width:24px;height:1px;background:var(--gold)}.hero-period{margin:39px 0 17px;color:#d8ddcc;font-size:13px;letter-spacing:.28em}.hero h1{margin:0}.hero h1 img{width:min(100%,555px);max-height:160px;object-fit:contain;object-position:left center;filter:drop-shadow(0 3px 16px rgba(11,28,25,.45))}.hero-heading{margin:0;font:400 clamp(43px,4vw,67px)/1.38 var(--serif);letter-spacing:.045em}.hero-heading em{font-style:normal;color:var(--gold)}.hero-description{max-width:520px;margin:25px 0 0;color:#c2cec1;font-size:15px;line-height:2.05;letter-spacing:.03em}.hero-actions{display:flex;align-items:center;gap:28px;margin-top:34px}.button-gold{display:inline-flex;align-items:center;justify-content:space-between;gap:46px;min-height:54px;padding:0 20px;background:var(--gold);color:#17312b;font-size:13px;font-weight:700;letter-spacing:.13em;transition:background .2s,transform .2s}.button-gold:hover{background:#e7c488;transform:translateY(-2px)}.button-gold span{font-size:20px}.hero-secondary{padding-bottom:7px;border-bottom:1px solid #b3bfae;color:#e0e4d8;font-size:12px;letter-spacing:.1em}.hero-secondary:hover{color:var(--gold);border-color:var(--gold)}.hero-map-note{align-self:end;margin:0 0 6px auto;min-width:235px;padding:16px 18px;background:rgba(12,36,33,.9);border-left:2px solid var(--gold);display:flex;flex-direction:column;gap:7px}.hero-map-note span{color:var(--gold);font-size:9px;letter-spacing:.18em}.hero-map-note strong{font:500 18px/1.4 var(--serif);letter-spacing:.05em}.hero-map-note small{color:#abb9ac;font-size:10px}.hero-route{position:relative;z-index:3;min-height:115px;display:grid;grid-template-columns:140px 1fr 35px;gap:28px;align-items:center;border-top:1px solid #4e6357}.hero-route-lead{display:flex;flex-direction:column;gap:5px}.hero-route-lead span{font-size:12px;letter-spacing:.14em}.hero-route-lead small{color:#9aad9d;font-size:10px;letter-spacing:.08em}.hero-route ol{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;list-style:none;margin:0;padding:0;position:relative}.hero-route ol:before{content:"";position:absolute;left:5px;right:5px;top:5px;height:2px;background:linear-gradient(90deg,var(--green) 0 78%,var(--ochre) 78%)}.hero-route li{position:relative;padding-top:23px}.hero-route li:before{content:"";position:absolute;top:0;left:0;width:11px;height:11px;border-radius:50%;background:var(--deep);border:2px solid var(--green)}.hero-route li.gold-stop:before{border-color:var(--ochre)}.hero-route li span{display:block;color:#9aad9d;font-size:9px;letter-spacing:.1em}.hero-route li strong{font:500 16px/1.3 var(--serif);white-space:nowrap}.hero-route>a{font-size:23px;text-align:right;color:var(--gold)}
.journey{position:relative;color:#f3eee2;background:var(--night)}.journey-stage{position:sticky;top:0;height:100vh;min-height:610px;z-index:0;overflow:hidden;isolation:isolate;background:#132e29}.journey-map{position:absolute;inset:0;overflow:hidden}.journey-map img{position:absolute;inset:0;width:70%;height:100%;max-width:none;object-fit:cover;object-position:center var(--map-y,25%);filter:saturate(.8) contrast(1.04) brightness(.96);transition:object-position .85s ease,filter .85s ease}.journey-map-vignette{position:absolute;inset:0;background:linear-gradient(90deg,rgba(12,36,33,.12) 0%,rgba(12,36,33,.06) 46%,#102926 73%,#102926 100%),linear-gradient(0deg,rgba(12,36,33,.85) 0%,transparent 19%,transparent 72%,rgba(12,36,33,.92) 100%)}.journey-stage[data-focus="origin"]{--map-y:31%}.journey-stage[data-focus="lake"]{--map-y:40%}.journey-stage[data-focus="shengle"]{--map-y:56%}.journey-stage[data-focus="pingcheng"]{--map-y:68%}.journey-stage[data-focus="luoyang"]{--map-y:87%}.journey-stage-top,.journey-stage-bottom{position:relative;z-index:1;display:flex;align-items:start;justify-content:space-between;gap:35px}.journey-stage-top{padding-top:39px}.stage-kicker{color:var(--gold);font-size:10px;font-weight:700;letter-spacing:.2em}.journey-stage h2{margin:10px 0 0;font:500 29px/1.2 var(--serif);letter-spacing:.11em}.journey-stage-top>a{padding-bottom:6px;border-bottom:1px solid #8b9d8d;color:#e0e4d8;font-size:11px;letter-spacing:.1em}.journey-stage-top>a:hover{color:var(--gold)}.journey-stage-bottom{position:absolute;left:50%;bottom:28px;transform:translateX(-50%);align-items:end}.stage-view{display:flex;flex-direction:column;gap:5px}.stage-view span{color:var(--gold);font-size:10px;letter-spacing:.2em}.stage-view strong{font:500 23px/1.3 var(--serif)}.stage-view small{color:#d3ddcf;font-size:10px}.route-progress{width:280px;display:flex;align-items:center;gap:20px;color:#c7d1c3;font:500 13px/1 var(--serif);white-space:nowrap}.route-progress b{color:var(--gold);font-size:19px;font-weight:500}.route-progress-line{display:block;flex:1;height:2px;background:#567266}.route-progress-line i{display:block;width:0;height:100%;background:var(--gold);transition:width .4s ease}
.journey-steps{position:relative;z-index:1;margin-top:-100vh;pointer-events:none}.journey-step{height:100vh;min-height:610px;scroll-margin-top:0}.step-inner{height:100%;display:flex;justify-content:flex-end;align-items:center}.journey-card{width:min(430px,38%);min-height:422px;padding:30px 34px 27px;background:#f5f0e4;color:var(--ink);box-shadow:0 26px 70px rgba(0,0,0,.2);pointer-events:auto}.card-meta{display:flex;justify-content:space-between;gap:20px;color:#8d9185;font-size:10px;letter-spacing:.1em}.card-meta span:first-child{color:#9d7a4e;font-weight:700}.card-color{display:block;width:45px;height:3px;margin-top:40px}.card-color.green{background:var(--green)}.card-color.gold{background:var(--ochre)}.card-kicker{margin:19px 0 4px!important;color:#7b8a7b!important;font-size:11px!important;letter-spacing:.14em}.journey-card h3{margin:0 0 22px;font:500 clamp(37px,3.5vw,51px)/1.25 var(--serif);letter-spacing:.04em}.journey-card p:not(.card-kicker){margin:0;color:#5c695e;font-size:14px;line-height:1.95}.journey-card a{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:26px;padding-bottom:9px;border-bottom:1px solid #9ba79b;font-size:12px;letter-spacing:.07em}.journey-card a:hover{color:var(--ochre);border-color:var(--ochre)}.journey-card a span{font-size:16px}.journey-card>small{display:block;margin-top:12px;color:#999e92;font-size:10px}
@media(max-width:1100px){.shell{width:min(100% - 56px,1440px)}.hero-content{width:61%}.hero-map-panel{left:42%}.hero-map-note{display:none}.premise-inner{grid-template-columns:20% 1fr;gap:32px}.premise-legend{grid-column:2;flex-direction:row;align-items:center;flex-wrap:wrap;margin:0;padding:15px 0}.journey-card{width:min(430px,46%)}.after-route-inner{grid-template-columns:1fr 260px}.after-route a{grid-column:2}}
@media(max-width:740px){.shell{width:min(100% - 34px,1440px)}.site-header{height:66px}.brand-seal{width:31px;height:31px;font-size:19px}.brand-name{font-size:17px}.brand-name small{font-size:7px}.site-nav{gap:13px}.site-nav a{font-size:10px;letter-spacing:0}.header-link{display:none}.hero{min-height:auto}.hero-map-panel{inset:0 0 110px 30%;opacity:.55}.hero-map-panel:before{background:linear-gradient(90deg,var(--deep) 0%,rgba(16,41,38,.6) 40%,rgba(16,41,38,.15) 100%),linear-gradient(0deg,var(--deep),transparent 45%)}.hero-map-panel img{object-position:48% 38%}.hero-inner{min-height:630px;align-items:center;padding:45px 0 50px}.hero-content{width:100%;padding:15px 0}.hero-period{margin-top:58px;font-size:11px}.hero h1 img{width:min(100%,430px)}.hero-heading{font-size:clamp(42px,8.9vw,60px)}.hero-description{max-width:440px;font-size:14px;line-height:1.95}.hero-actions{gap:18px;flex-wrap:wrap}.button-gold{min-height:50px;gap:26px;font-size:12px}.hero-secondary{font-size:11px}.hero-route{min-height:110px;grid-template-columns:1fr 25px;gap:12px;padding:16px 0}.hero-route-lead{grid-column:1;flex-direction:row;gap:13px;align-items:center}.hero-route ol{grid-column:1;grid-row:2}.hero-route li strong{font-size:12px}.hero-route li span{font-size:8px}.hero-route>a{grid-column:2;grid-row:2}.premise{padding:72px 0}.premise-inner{display:block}.premise h2{margin-top:29px;font-size:clamp(42px,8vw,60px)}.premise p:not(.section-label){font-size:14px}.premise-legend{margin-top:32px;gap:12px;font-size:10px}.journey-stage,.journey-step{min-height:660px}.journey-map img{width:100%;height:72%;object-position:center var(--map-y,20%)}.journey-map-vignette{background:linear-gradient(0deg,#102926 0%,rgba(16,41,38,.87) 23%,transparent 62%),linear-gradient(90deg,rgba(12,36,33,.08),rgba(12,36,33,.08))}.journey-stage-top{padding-top:23px}.journey-stage h2{font-size:23px}.journey-stage-top>a{font-size:9px}.journey-stage-bottom{bottom:auto;top:107px;align-items:start}.stage-view strong{font-size:19px}.stage-view small{font-size:9px}.route-progress{width:100px;gap:7px;font-size:10px}.route-progress b{font-size:14px}.step-inner{align-items:flex-end;padding-bottom:36px}.journey-card{width:100%;min-height:0;padding:22px 23px 19px}.card-color{margin-top:21px}.card-kicker{margin-top:11px!important}.journey-card h3{font-size:37px;margin-bottom:11px}.journey-card p:not(.card-kicker){font-size:12px;line-height:1.7}.journey-card a{margin-top:15px;font-size:11px}.journey-card>small{margin-top:8px;font-size:9px}.after-route{padding:69px 0}.after-route-inner{display:block}.after-route h2{font-size:clamp(37px,8vw,54px)}.after-route p:not(.section-label){margin:25px 0;font-size:13px}.after-route a{display:inline-block}.sources,.works{padding:72px 0}.sources-head,.works-head{display:block;margin-bottom:34px}.sources h2,.works h2{margin-top:23px;font-size:clamp(38px,8vw,52px)}.sources-head>p,.works-head>p{margin-top:18px;font-size:13px}.source-grid{display:block}.source-card,.source-card:first-child{min-height:0;border-left:1px solid #afa995;border-right:1px solid #afa995;border-bottom:1px solid #afa995;padding:22px}.source-card:last-child{border-bottom:0}.source-card strong{margin-top:25px;font-size:26px}.source-card p{margin:12px 0 24px}.source-foot{display:block}.source-foot p{margin-top:10px}.work-grid{grid-template-columns:1fr;gap:16px}.work-image{height:225px}.work-info strong{font-size:29px}.footer-main{min-height:185px}.footer-main img{width:160px}.footer-main p{font-size:11px}.footer-meta{flex-wrap:wrap;justify-content:flex-start;gap:5px 20px;padding-top:18px;padding-bottom:20px}}
@media(max-width:390px){.site-nav{gap:8px}.site-nav a{font-size:9px}.hero-inner{min-height:605px}.hero-heading{font-size:40px}.hero-route li strong{font-size:10px}.journey-card{padding:18px}.journey-card h3{font-size:33px}.journey-card p:not(.card-kicker){font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}