/* 城市漫游预览版：保留既有资料和交互，重排游客的阅读入口。 */
:root{--paper:#f6f2e9;--paper-deep:#e8e2d6;--river:#15394f;--river-soft:#e3eced;--seal:#a54632;--gold:#c7a56e;--ink:#17252b;--white:#fffdf8}
html{scroll-padding-top:76px}
section[id]{scroll-margin-top:76px}
.topbar{background:rgba(249,246,239,.92)}
.topnav a{font-weight:650;letter-spacing:.04em}
.tour-hero{position:relative;isolation:isolate;min-height:min(760px,calc(100svh - 72px));display:grid;grid-template-columns:minmax(0,1fr) minmax(240px,300px);align-items:end;gap:clamp(24px,5vw,80px);padding:clamp(55px,9vw,130px) clamp(18px,6vw,92px) 72px;color:#fff;background:#193f51 url("assets/scenic/zhangjian-memorial.webp") center 51%/cover no-repeat}
.tour-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,27,39,.84) 0%,rgba(9,35,48,.65) 48%,rgba(10,38,50,.25) 100%),linear-gradient(0deg,rgba(7,25,36,.67),transparent 54%);z-index:-1}
.tour-hero::after{content:"";position:absolute;inset:0;border:14px solid rgba(255,255,255,.09);pointer-events:none;z-index:-1}
.tour-hero-copy{max-width:790px}
.tour-hero .eyebrow{color:#e8d2a9}
.tour-hero h1{font-family:var(--serif);font-size:clamp(52px,7vw,106px);font-weight:600;line-height:1.16;letter-spacing:.045em;margin:27px 0 24px;text-wrap:balance;text-shadow:0 4px 28px rgba(0,0,0,.2)}
.tour-hero h1 em{font-style:normal;color:#f3dfbb}
.tour-hero-copy>p{font-family:var(--serif);font-size:clamp(18px,1.55vw,23px);line-height:1.85;max-width:650px;color:rgba(255,255,255,.88);margin:0 0 30px;text-wrap:pretty}
.tour-hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-primary,.hero-secondary{min-height:50px;display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:0 24px;text-decoration:none;font-weight:700;transition:background .2s,transform .2s}
.hero-primary{background:#f5ead5;color:#173448}.hero-primary:hover{background:#fff9ec;transform:translateY(-2px)}
.hero-secondary{border:1px solid rgba(255,255,255,.64);color:#fff;background:rgba(8,33,45,.2)}.hero-secondary:hover{background:rgba(255,255,255,.17)}
.tour-hero-aside{align-self:end;padding:24px 26px;border:1px solid rgba(255,255,255,.36);background:rgba(8,32,45,.32);backdrop-filter:blur(14px);border-radius:8px}
.tour-hero-aside span{display:block;font-size:12px;letter-spacing:.22em;color:#e5d3b6}
.tour-hero-aside strong{display:block;font-family:var(--serif);font-size:25px;line-height:1.35;margin:11px 0}
.tour-hero-aside p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.84);margin:0 0 18px}
.tour-hero-aside small{color:rgba(255,255,255,.68);font-size:11px}
.tour-scroll{position:absolute;left:clamp(18px,6vw,92px);bottom:24px;color:rgba(255,255,255,.78);font-size:12px;letter-spacing:.13em;text-decoration:none}.tour-scroll span{margin-left:14px;font-size:20px}

.seven-gates{padding:90px clamp(18px,5vw,80px) 100px;background:#f8f5ed;scroll-margin-top:76px}
.seven-gates-head{max-width:1280px;margin:0 auto 32px;display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,.7fr);gap:30px;align-items:end}
.seven-gates h2,.desk-section h2{font-family:var(--serif);font-weight:600;font-size:clamp(38px,4.3vw,62px);line-height:1.18;margin:15px 0 0}
.seven-gates-head p{margin:0;color:#536269;font-size:15px;max-width:530px}
.seven-gates-grid{max-width:1280px;margin:auto;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.seven-gates-grid a{position:relative;min-width:0;min-height:198px;display:flex;flex-direction:column;padding:22px 22px 19px;border:1px solid #d8d6cd;border-radius:7px;text-decoration:none;background:#fffdf8;box-shadow:0 10px 24px rgba(24,52,62,.04);transition:transform .2s,box-shadow .2s,border-color .2s}
.seven-gates-grid a::before{content:"";position:absolute;right:21px;top:22px;width:30px;height:30px;border:1px solid rgba(165,70,50,.35);border-radius:50%}
.seven-gates-grid a:hover{transform:translateY(-4px);box-shadow:0 16px 30px rgba(24,52,62,.12);border-color:#8ba9a5}
.seven-gates-grid span{color:var(--seal);font-size:11px;letter-spacing:.13em;font-weight:750}
.seven-gates-grid strong{display:block;font-family:var(--serif);font-size:clamp(25px,2.4vw,34px);line-height:1.3;margin:15px 0 5px}
.seven-gates-grid small{font-size:12px;color:#5d6b70;line-height:1.6}
.seven-gates-grid em{font-style:normal;margin-top:auto;padding-top:14px;font-size:12px;color:var(--river);font-weight:700}
.seven-gates-grid .seven-gates-finale{background:#e5eeeb;border-color:#bfd0c9}
.seven-gates-finale::after{content:"";position:absolute;right:21px;bottom:20px;width:54px;height:16px;border:2px solid rgba(21,57,79,.17);border-bottom-width:5px;transform:skew(-14deg)}
.desk-section{display:grid;grid-template-columns:minmax(250px,.85fr) minmax(0,1.15fr);gap:clamp(35px,7vw,115px);align-items:center;padding:90px clamp(18px,7vw,110px);background:#e5ece7;border-top:1px solid #cbd8d2;border-bottom:1px solid #cbd8d2;scroll-margin-top:76px}
.desk-illustration{position:relative;max-width:570px;min-height:390px;width:100%;margin:auto;border:1px solid #c1cfc8;border-radius:6px;background:radial-gradient(circle at 62% 25%,#f8f3e5 0%,#e1e9e3 62%,#d7e1db 100%);overflow:hidden}
.desk-illustration::before{content:"";position:absolute;left:7%;right:7%;bottom:15%;height:15px;background:#9a684c;box-shadow:0 9px 0 #724b38;border-radius:2px}
.desk-book{position:absolute;display:block;left:17%;bottom:20%;width:34%;height:23px;border-radius:3px;background:#294f56;transform:rotate(-9deg);box-shadow:4px 8px 15px rgba(32,54,49,.14)}
.desk-book-two{left:23%;bottom:27%;width:31%;height:20px;background:#a55c3e;transform:rotate(7deg)}
.desk-paper{position:absolute;display:grid;place-items:center;right:17%;top:17%;width:32%;height:45%;background:#fffaf0;color:#9c4a35;font-family:var(--serif);font-size:clamp(52px,8vw,95px);box-shadow:9px 12px 25px rgba(37,65,60,.15);transform:rotate(8deg)}
.desk-line{position:absolute;right:20%;bottom:22%;width:27%;height:2px;background:#46656a;transform:rotate(-34deg);transform-origin:right center}
.desk-copy{max-width:600px}.desk-copy p{color:#445b5f;font-size:16px;line-height:1.9;margin:23px 0 27px}.desk-links{display:flex;gap:10px;flex-wrap:wrap}.desk-links a{display:inline-flex;align-items:center;min-height:44px;padding:0 18px;border:1px solid #9bb2aa;border-radius:999px;background:#f9faf4;color:#204653;font-size:13px;font-weight:700;text-decoration:none}.desk-links a:hover{background:#fff}
@media(max-width:900px){.seven-gates-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.desk-section{grid-template-columns:1fr}.desk-illustration{min-height:300px;max-width:100%}}
@media(max-width:600px){.seven-gates{padding:70px 16px}.seven-gates-head{grid-template-columns:1fr;gap:15px}.seven-gates-grid{gap:9px}.seven-gates-grid a{padding:17px 14px;min-height:175px}.seven-gates-grid a::before{right:14px;top:16px;width:22px;height:22px}.seven-gates-grid strong{font-size:25px;margin:18px 0 5px}.seven-gates-grid small{font-size:11px}.seven-gates-grid em{font-size:11px}.desk-section{padding:68px 16px;gap:28px}.desk-illustration{min-height:230px}.desk-copy p{font-size:15px}.desk-links a{width:100%;justify-content:center}}

.explore-v2{background:#eae4da;padding-top:95px;padding-bottom:110px}
.guide-swipe-hint{display:none}
.guide-layout,.city-extensions{max-width:1280px;margin:auto}
.guide-layout{display:grid;grid-template-columns:minmax(220px,.32fr) minmax(0,1fr);gap:20px;align-items:stretch}
.guide-options{display:flex;flex-direction:column;gap:10px}
.guide-option{text-align:left;border:1px solid rgba(23,37,43,.16);border-radius:7px;padding:20px 22px;background:rgba(255,253,248,.55);min-height:146px;cursor:pointer;transition:background .2s,box-shadow .2s,border-color .2s}
.guide-option:hover{background:#fffdf8}
.guide-option.is-active{background:var(--river);color:white;border-color:var(--river);box-shadow:0 14px 30px rgba(18,45,61,.18)}
.guide-option span{display:block;font-size:11px;letter-spacing:.18em;font-weight:700;color:var(--seal)}
.guide-option strong{display:block;font-family:var(--serif);font-size:25px;margin:9px 0 4px}
.guide-option small{color:var(--muted);font-size:12px;line-height:1.6}
.guide-option.is-active span{color:#e8cd9e}.guide-option.is-active small{color:rgba(255,255,255,.75)}
.guide-panel{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);background:var(--white);border:1px solid var(--line);border-radius:7px;overflow:hidden;box-shadow:0 22px 50px rgba(25,43,53,.1);min-height:458px}
.guide-visual{position:relative;min-height:420px;margin:0;background:#b9c9ca;overflow:hidden}
.guide-visual img{width:100%;height:100%;display:block;object-fit:cover;transition:opacity .2s}
.guide-visual::after{content:"";position:absolute;inset:55% 0 0;background:linear-gradient(transparent,rgba(5,27,38,.55));pointer-events:none}
.guide-visual figcaption{position:absolute;z-index:1;left:22px;bottom:17px;color:white;font-size:12px;line-height:1.5}
.guide-image-fallback{position:absolute;inset:0;display:grid;place-items:center;padding:28px;color:var(--river);background:#e0e7e5;text-align:center}
.guide-copy{padding:clamp(24px,3.4vw,46px);display:flex;flex-direction:column;min-width:0}
.guide-kicker{display:inline-flex;align-self:flex-start;padding:5px 10px;background:#f3e5db;border-radius:999px;color:#87432d;font-size:12px;font-weight:700}
.guide-copy h3{font-family:var(--serif);font-weight:600;font-size:clamp(29px,3vw,43px);line-height:1.3;margin:17px 0 12px}
.guide-copy>p{font-size:15px;color:#4d5b60;margin:0;line-height:1.8}
.guide-steps{display:grid;gap:1px;margin:23px 0;background:var(--line);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.guide-step{display:grid;grid-template-columns:30px 1fr;gap:12px;align-items:center;padding:9px 2px;background:var(--white);font-size:13px}
.guide-step span{font-family:var(--serif);font-size:18px;color:var(--seal)}.guide-step b{font-weight:650}
.guide-copy .guide-caveat{font-size:12px;color:#6f7777;line-height:1.65;margin:0 0 18px}
.guide-copy .guide-credit{font-size:11px;color:#768083;margin:0 0 14px}.guide-credit a{color:var(--river);text-underline-offset:3px}
.guide-actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:auto}
.guide-actions button{min-height:44px}
.city-extensions{margin-top:42px;padding:29px 0 0;border-top:1px solid rgba(23,37,43,.16)}
.city-extensions-heading{display:grid;grid-template-columns:minmax(0,.7fr) minmax(0,1fr);gap:10px 35px;align-items:end}
.city-extensions-heading .eyebrow{grid-column:1/-1}
.city-extensions-heading h3{font-family:var(--serif);font-size:clamp(26px,2.5vw,36px);line-height:1.35;margin:0}
.city-extensions-heading p{font-size:13px;color:var(--muted);margin:0}
.city-extensions-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:20px}
.city-extensions-grid a{display:flex;flex-direction:column;min-height:140px;padding:20px 22px;border:1px solid var(--line);background:rgba(255,253,248,.72);border-radius:6px;text-decoration:none;transition:transform .2s,background .2s}
.city-extensions-grid a:hover{transform:translateY(-3px);background:var(--white)}
.city-extensions-grid span{font-size:12px;color:var(--seal);font-weight:700;letter-spacing:.08em}
.city-extensions-grid strong{font-family:var(--serif);font-size:24px;margin:8px 0}
.city-extensions-grid small{margin-top:auto;font-size:12px;color:var(--river)}

.stage{min-height:auto;padding-top:95px;padding-bottom:95px}
.stage-copy h2{font-family:var(--serif);font-size:clamp(44px,5vw,73px);font-weight:600;line-height:1.12;letter-spacing:.04em;margin:22px 0 20px}
.stage-copy h2 span{display:block;color:var(--river)}
.route-map{min-height:620px}
.archive{background:#f8f6f0}
.journey{background:linear-gradient(180deg,var(--river) 0,var(--river) 28%,transparent 28%,transparent 100%)}
.scenic-card.photo-unavailable{background:#27485a}
.scenic-photo-error{position:absolute;inset:0;display:grid;place-items:center;padding:30px;color:#fff;font-family:var(--serif);font-size:20px;text-align:center}

.passport-v2{background:radial-gradient(circle at 12% 4%,rgba(255,255,255,.7),transparent 28rem),linear-gradient(125deg,#dae8e8 0%,#edf0e9 52%,#e9e4d9 100%);color:var(--ink);padding-top:105px;padding-bottom:110px}
.passport-wrap{max-width:1280px;margin:auto;display:grid;grid-template-columns:minmax(260px,.34fr) minmax(0,1fr);gap:clamp(28px,5vw,72px);align-items:start}
.passport-v2 .eyebrow{color:var(--seal)}
.passport-intro h2{font-family:var(--serif);font-size:clamp(38px,4.2vw,59px);line-height:1.2;margin:20px 0}
.passport-intro p{color:#44575b;font-size:16px;line-height:1.9;margin:0 0 30px}
.passport-tallies{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:0 0 28px}
.passport-tallies div{border-top:1px solid rgba(37,69,75,.27);padding-top:12px}
.passport-tallies strong{display:block;font-family:var(--serif);font-size:42px;color:#174157;line-height:1.2}
.passport-tallies span{font-size:12px;color:#536469}
.passport-link{display:inline-flex;align-items:center;gap:12px;min-height:44px;padding:0 20px;border-radius:999px;background:#174157;color:#fffdf8;text-decoration:none;font-weight:700}
.passport-link:hover{background:#245970}
.passport-intro small{display:block;margin-top:17px;font-size:12px;line-height:1.7;color:#56696e}
.passport-book{min-width:0;background:#fffaf0;color:#223238;border-radius:6px;padding:clamp(20px,3vw,38px);box-shadow:0 22px 50px rgba(40,70,73,.12);border:1px solid #d1be9e}
.passport-book-top{display:flex;justify-content:space-between;gap:14px;border-bottom:1px solid #c7bca7;padding-bottom:13px;color:#8d563c;font-size:12px;font-weight:700;letter-spacing:.1em}
.passport-stamps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:25px 0 28px}
.passport-loading{grid-column:1/-1;color:#66757a;text-align:center}
.passport-stamp{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:150px;padding:12px 6px;border:1px solid #d7cbb6;border-radius:4px;background:#fffaf0;cursor:pointer;transition:transform .2s,border-color .2s;text-align:center}
.passport-stamp:hover{transform:translateY(-3px);border-color:#a34e37}
.passport-stamp-mark{width:76px;height:76px;border:2px dashed #c9bda9;border-radius:50%;display:grid;place-items:center;font-family:var(--serif);font-size:20px;color:#a6a59e;transform:rotate(-9deg)}
.passport-stamp.visited .passport-stamp-mark{border:3px double #a54834;color:#a54834;background:#fbefdf;box-shadow:inset 0 0 0 5px #f7f0e2}
.passport-stamp strong{font-family:var(--serif);font-size:16px;margin-top:8px}
.passport-stamp small{font-size:11px;color:#7a8586}
.passport-notes{border-top:1px solid #c7bca7;padding-top:18px}
.passport-notes h3{font-family:var(--serif);font-size:22px;margin:0 0 10px}
.passport-notes p{font-size:13px;color:#697577}
.passport-notes-list{display:grid;gap:8px}
.passport-note{display:block;width:100%;padding:11px 14px;border:1px solid #d5c9b6;border-radius:4px;background:#fffaf0;text-align:left;cursor:pointer}
.passport-note:hover{background:white}
.passport-note b{display:block;font-family:var(--serif);font-size:16px;color:#9b4732}
.passport-note span{display:block;color:#526065;font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

@media(max-width:1100px){
  .tour-hero{grid-template-columns:minmax(0,1fr) 240px}
  .guide-layout{grid-template-columns:210px minmax(0,1fr)}
  .guide-panel{grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr)}
  .passport-stamps{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media(max-width:900px){
  .tour-hero{grid-template-columns:1fr;min-height:680px}
  .tour-hero-aside{max-width:400px;justify-self:end}
  .guide-layout{grid-template-columns:1fr}
  .passport-title-break{display:none}
  .guide-options{flex-direction:row;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:5px}
  .guide-option{flex:1 0 210px;scroll-snap-align:start}
  .passport-wrap{grid-template-columns:1fr}
  .passport-intro{max-width:640px}
  .passport-stamps{grid-template-columns:repeat(4,minmax(0,1fr))}
}
@media(max-width:760px){
  .tour-hero{min-height:710px;padding:78px 20px 76px;background-position:56% 50%}
  .tour-hero::before{background:linear-gradient(90deg,rgba(7,27,39,.85),rgba(7,27,39,.45)),linear-gradient(0deg,rgba(7,25,36,.78),transparent 75%)}
  .tour-hero::after{border-width:7px}
  .tour-hero h1{font-size:clamp(43px,11vw,64px);margin-top:23px}
  .tour-hero-copy>p{font-size:17px}
  .tour-hero-aside{justify-self:stretch;max-width:none;padding:16px 18px}
  .tour-hero-aside strong{font-size:20px;margin:5px 0}
  .tour-hero-aside p{margin-bottom:5px;font-size:12px}
  .tour-scroll{left:20px;bottom:19px}
  .explore-v2{padding-top:72px;padding-bottom:80px}
  .guide-swipe-hint{display:block;max-width:1280px;margin:-10px auto 16px;color:#6f7777;font-size:12px}
  .guide-panel{display:flex;flex-direction:column}
  .guide-visual{min-height:0;aspect-ratio:4/3}
  .guide-copy{padding:25px 20px 27px}
  .guide-option{flex-basis:205px;min-height:132px;padding:15px}
  .guide-copy h3{font-size:32px}
  .city-extensions-heading{grid-template-columns:1fr}
  .city-extensions-grid{grid-template-columns:1fr}
  .city-extensions-grid a{min-height:110px}
  .stage{padding-top:72px;padding-bottom:75px}
  .stage-copy h2{font-size:46px}
  .route-map{min-height:540px}
  .passport-v2{padding-top:78px;padding-bottom:80px}
  .passport-book{padding:20px 14px}
  .passport-stamps{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .passport-stamp{min-height:132px}
}
@media(max-width:420px){
  .hero-primary,.hero-secondary{width:100%}
  .tour-hero{min-height:760px}
  .brand{font-size:12px;gap:8px}
  .passport-book-top{font-size:10px}
}
@media(prefers-reduced-motion:reduce){
  .hero-primary:hover,.city-extensions-grid a:hover,.passport-stamp:hover{transform:none}
}