:root{--bg:#101916;--panel:#1b2a23;--panel2:#23362b;--line:#3b5647;--text:#f6f2e9;--muted:#acb9ac;--gold:#edb474;--red:#ed735c;--blue:#9ac5ca;--max:1120px}
    *{box-sizing:border-box}[hidden]{display:none!important}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:"Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;line-height:1.65}
    body:before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background:repeating-linear-gradient(75deg,transparent 0 128px,#1a2a21 129px 130px),repeating-linear-gradient(0deg,transparent 0 129px,#1a2a21 130px 131px);opacity:.55}
    a{color:inherit}.wrap{width:min(calc(100% - 40px),var(--max));margin:auto}.eyebrow{color:var(--gold);font-size:.83rem;letter-spacing:.17em;font-weight:800;text-transform:uppercase}.section{padding:70px 0}.section h2{font-size:clamp(2rem,5vw,3.8rem);line-height:1.16;letter-spacing:-.04em;margin:.45rem 0 1.1rem}.section-lede{color:var(--muted);max-width:48rem;font-size:1.05rem}
    header{border-bottom:1px solid var(--line);background:#102019ea;position:sticky;top:0;z-index:20;backdrop-filter:blur(16px)}.nav{min-height:66px;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{font-size:.95rem;font-weight:900;letter-spacing:.03em;text-decoration:none}.navlinks{display:flex;gap:20px;color:var(--muted);font-size:.85rem}.navlinks a{text-decoration:none}.navlinks a:hover{color:var(--text)}
    .hero{padding:94px 0 68px;overflow:hidden}.hero-inner{display:grid;grid-template-columns:1.25fr .75fr;gap:34px;align-items:end}.hero h1{font-size:clamp(3rem,8.3vw,6.7rem);line-height:1.05;letter-spacing:-.065em;margin:18px 0 28px}.hero h1 span{color:var(--gold)}.hero p{font-size:1.1rem;color:var(--muted);max-width:40rem}.meta{display:flex;flex-wrap:wrap;gap:10px;margin:30px 0}.pill{background:var(--panel2);border:1px solid var(--line);border-radius:999px;padding:9px 16px;font-size:.91rem}.cta{display:inline-flex;align-items:center;gap:10px;padding:14px 22px;background:var(--gold);color:#17231a;text-decoration:none;border-radius:12px;font-weight:900}.hero-art{position:relative;min-height:390px;border:1px solid var(--line);border-radius:24px;background:radial-gradient(circle at 75% 22%,#507050 0,transparent 27%),radial-gradient(circle at 38% 72%,#2b4a36 0,transparent 39%),#1c2c24;overflow:hidden;box-shadow:0 28px 90px #0004}.hero-art:before,.hero-art:after{content:"";position:absolute;inset:0;opacity:.5}.hero-art:before{background:repeating-linear-gradient(45deg,transparent 0 49px,#a3bf9b22 50px 51px)}.route{position:absolute;left:29%;top:13%;height:76%;border-left:3px dashed #edb474aa;transform:rotate(-17deg)}.route i{position:absolute;left:-15px;width:28px;height:28px;border:5px solid var(--gold);background:#1b2c21;border-radius:50%}.route i:nth-child(1){top:0}.route i:nth-child(2){top:25%}.route i:nth-child(3){top:50%}.route i:nth-child(4){top:75%;background:var(--red);border-color:var(--red)}.route i:nth-child(5){top:100%;background:var(--red);border-color:var(--red)}.art-label{position:absolute;right:25px;bottom:23px;background:#142018d9;border:1px solid var(--line);padding:14px 18px;border-radius:12px;font-size:.82rem;color:var(--muted);letter-spacing:.1em}.notice{margin-top:28px;padding:17px 21px;border-left:3px solid var(--gold);background:#24372a;color:#e2e6d9;font-size:.95rem}
    .flow{border-top:1px solid var(--line)}.flow-line{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-top:34px}.flow-card{position:relative;min-height:190px;background:var(--panel);border:1px solid var(--line);padding:22px;border-radius:17px}.flow-card:after{content:"→";position:absolute;right:-16px;top:66px;color:var(--gold);font-size:1.8rem;z-index:2}.flow-card:last-child:after{display:none}.flow-card b{display:block;font-size:2.7rem;line-height:1;color:var(--gold);font-variant-numeric:tabular-nums}.flow-card.dual b{color:var(--red)}.flow-card h3{font-size:1.13rem;line-height:1.35;margin:21px 0 8px}.flow-card p{font-size:.82rem;color:var(--muted);margin:0}.callout{margin-top:24px;background:#372e25;border:1px solid #8f6443;color:#ffe2be;padding:16px 20px;border-radius:12px;font-weight:750}
    .rules{background:#142119;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.rule-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:30px}.rule{border:1px solid var(--line);background:var(--panel);padding:26px;border-radius:16px}.rule .num{color:var(--gold);font-size:.81rem;font-weight:900;letter-spacing:.15em}.rule h3{font-size:1.3rem;margin:8px 0}.rule p{color:var(--muted);margin:0;font-size:.94rem}
    .stage-head{display:flex;justify-content:space-between;align-items:end;gap:24px}.stage-tabs{display:flex;gap:8px;overflow-x:auto;padding:3px 1px 13px;margin:26px 0 0;scrollbar-width:thin}.stage-tabs button{border:1px solid var(--line);background:var(--panel);color:var(--muted);border-radius:10px;padding:11px 19px;min-width:94px;font:inherit;font-weight:850;cursor:pointer;white-space:nowrap}.stage-tabs button[aria-selected="true"]{background:var(--gold);border-color:var(--gold);color:#132016}.stage-tabs button:focus-visible,.map-button:focus-visible,.cta:focus-visible,a:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
    .stage-panel{display:grid;grid-template-columns:380px minmax(0,1fr);gap:17px;align-items:stretch}.stage-copy{background:var(--panel);border:1px solid var(--line);border-radius:17px;padding:30px}.stage-copy .phase{font-size:.79rem;color:var(--gold);font-weight:900;letter-spacing:.17em}.stage-copy h3{font-size:2rem;line-height:1.25;margin:16px 0}.stage-copy .task{font-size:1.2rem;font-weight:850;color:var(--text);padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.stage-copy dl{margin:20px 0 0}.stage-copy dt{font-size:.8rem;color:var(--muted);letter-spacing:.07em;margin-top:18px}.stage-copy dd{font-size:1rem;margin:2px 0 0}.stage-copy .hint{margin:26px 0 0;color:var(--blue);font-size:.86rem}.map-button{display:block;border:1px solid var(--line);background:#19271f;border-radius:17px;padding:0;overflow:hidden;cursor:zoom-in;position:relative;min-height:480px}.map-button img{display:block;width:100%;height:100%;object-fit:cover;object-position:center 34%}.map-button span{position:absolute;right:14px;bottom:14px;background:#101916de;color:#fff;border:1px solid #fff5;border-radius:9px;padding:8px 12px;font-size:.84rem}.map-legend{color:var(--muted);font-size:.86rem;margin-top:12px}
    .faq{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:17px 0}summary{cursor:pointer;font-size:1.06rem;font-weight:750;list-style:none;display:flex;justify-content:space-between;gap:12px}summary:after{content:"+";color:var(--gold);font-size:1.35rem;line-height:1}details[open] summary:after{content:"−"}details p{color:var(--muted);max-width:44rem;margin:10px 0 5px}footer{padding:37px 0 55px;color:var(--muted);border-top:1px solid var(--line);font-size:.82rem}
    dialog{border:0;padding:0;background:#0a100d;max-width:min(96vw,1300px);max-height:94vh;color:var(--text);border-radius:12px}dialog::backdrop{background:#000d}.dialog-bar{position:sticky;top:0;background:#101916;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:10px 15px;border-bottom:1px solid var(--line)}.dialog-bar button{background:var(--panel2);color:var(--text);border:1px solid var(--line);padding:7px 13px;border-radius:8px;cursor:pointer}dialog img{display:block;width:100%;height:auto;max-height:calc(94vh - 52px);object-fit:contain}
    @media(max-width:780px){.wrap{width:min(calc(100% - 30px),var(--max))}.navlinks{gap:12px;font-size:.75rem}.hero{padding:48px 0 52px}.hero-inner{grid-template-columns:1fr}.hero h1{font-size:clamp(3rem,12vw,5rem)}.hero-art{min-height:235px}.section{padding:55px 0}.flow-line{display:flex;flex-direction:column}.flow-card{min-height:0;padding:18px 20px}.flow-card:after{content:"↓";right:28px;top:auto;bottom:-27px}.flow-card b{font-size:1.8rem}.flow-card h3{margin:9px 0 4px}.rule-grid{grid-template-columns:1fr}.stage-head{display:block}.stage-panel{grid-template-columns:1fr}.stage-copy{padding:23px}.map-button{min-height:0;aspect-ratio:1/1}.map-button img{object-fit:cover}.nav{min-height:58px}.stage-copy h3{font-size:1.7rem}}
    @media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

    /* Keep the complete map visible at every viewport width. */
    section[id]{scroll-margin-top:82px}
    .stage-panel{align-items:start}
    .map-button{min-height:0;aspect-ratio:1707/1920;max-height:82vh}
    .map-button img{width:100%;height:100%;object-fit:contain;object-position:center}
    .map-button span{min-height:44px;display:flex;align-items:center}
    .stage-tabs button{min-height:48px}
    .cta{min-height:48px}
    dialog{width:min(96vw,1300px);height:min(94vh,1100px);overflow:auto}
    dialog img{width:100%;height:auto;max-height:none;object-fit:contain}
    @media(max-width:780px){
      .map-button{aspect-ratio:1707/1920;max-height:none}
      .map-button img{height:100%;object-fit:contain}
      dialog{width:100vw;max-width:100vw;height:100dvh;max-height:100dvh;border-radius:0}
      .dialog-bar{z-index:2}
    }
    @media(max-width:420px){
      .wrap{width:calc(100% - 28px)}
      .brand{font-size:.83rem;white-space:nowrap}
      .navlinks{gap:9px;font-size:.73rem}
      .navlinks a{white-space:nowrap}
      .hero h1{font-size:clamp(2.65rem,12vw,3.5rem)}
      .hero-art{min-height:205px}
      .stage-copy{padding:20px}
    }

    .base-rules{border-top:1px solid var(--line);background:#15231b}
    .draft-note{padding:13px 16px;border-radius:10px;border:1px solid #8f6443;background:#372e25;color:#ffe2be;margin:22px 0 0}
    .base-highlights{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:30px 0 42px}
    .base-box{background:var(--panel);border:1px solid var(--line);border-radius:17px;padding:27px}
    .base-box h3,#topic-box h3{font-size:1.45rem;line-height:1.25;margin:0 0 20px}
    .base-box ol,.base-box ul{margin:0;padding-left:1.35rem}
    .base-box li{padding:9px 0 9px 5px}
    .base-box li+li{border-top:1px solid var(--line)}
    .base-box li strong{display:block;font-size:1rem}
    .base-box li span{display:block;color:var(--muted);font-size:.9rem;margin-top:4px}
    .prohibitions{background:#30231f;border-color:#915346}
    .prohibitions h3{color:#ffad9d}
    .prohibitions li+li{border-color:#6e463a}
    .rules-search-label{display:block;color:var(--muted);font-size:.83rem;margin-bottom:7px}
    #rules-search{display:block;width:100%;min-height:50px;padding:11px 14px;border:1px solid var(--line);border-radius:11px;background:#0f1914;color:var(--text);font:inherit}
    #rules-search:focus-visible{outline:3px solid var(--blue);outline-offset:2px}
    .topic-list{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:20px}
    .topic-list details{border:1px solid var(--line);border-radius:12px;background:var(--panel);padding:17px 20px;align-self:start}
    .topic-list details[open]{border-color:#69816e}
    .topic-list .topic-summary{margin:11px 0;color:var(--muted)}
    .topic-list ul{margin:8px 0 0;padding-left:1.25rem;color:var(--text)}
    .topic-list li{padding:3px 0}
    .no-results{color:var(--muted)}
    @media(max-width:780px){.base-highlights,.topic-list{grid-template-columns:1fr}.base-box{padding:22px}}

    .hero-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
    .secondary-link{display:inline-flex;align-items:center;min-height:48px;padding:11px 17px;border:1px solid var(--line);border-radius:12px;color:var(--text);font-weight:800;text-decoration:none;background:var(--panel)}
    .secondary-link:hover{border-color:var(--gold);color:var(--gold)}
    .secondary-link:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
    .back-link{font-size:.85rem;color:var(--muted);text-decoration:none}
    .back-link:hover{color:var(--text)}
    .rules-bridge{border-top:1px solid var(--line);background:#142119}
    .rules-bridge h2{font-size:clamp(1.75rem,4vw,2.8rem)}
    .rules-bridge p{color:var(--muted);margin:0 0 22px}
    .draft-label{display:inline-block;margin-top:13px;padding:5px 10px;border:1px solid #8f6443;border-radius:7px;color:#ffe2be;background:#372e25;font-size:.78rem;font-weight:800}
    .arrival{border-top:1px solid var(--line);background:#18271f}
    .arrival-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px;margin-top:28px}
    .arrival-card{min-height:150px;padding:23px;border:1px solid var(--line);border-radius:15px;background:var(--panel)}
    .arrival-card.pending{border-style:dashed;opacity:.82}
    .arrival-card h3{font-size:1.16rem;margin:0 0 9px}
    .arrival-card p{color:var(--muted);margin:0;font-size:.94rem}
    .arrival-action{display:inline-flex;min-height:44px;align-items:center;margin-top:12px;color:var(--gold);font-weight:800;text-decoration:none}
    .directory-rules{display:flex;flex-direction:column;align-items:flex-start;gap:4px;width:min(100%,440px);margin-top:32px;padding:21px 24px;border:1px solid #9c764a;border-radius:16px;background:#2e3025;text-decoration:none}
    .directory-rules span{font-size:.75rem;letter-spacing:.12em;color:var(--gold);font-weight:900}
    .directory-rules strong{font-size:1.3rem}
    .directory-rules small{font-size:.86rem;color:var(--muted)}
    .directory-rules:hover{border-color:var(--gold)}
    .directory-rules:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
    .rules-hero{padding:78px 0 65px;background:radial-gradient(circle at 78% 27%,#324936 0,transparent 34%),#15231b;border-bottom:1px solid var(--line)}
    .rules-hero h1{font-size:clamp(3.7rem,10vw,7rem);line-height:1.03;letter-spacing:-.06em;margin:15px 0 20px}
    .rules-hero h1 span{color:var(--gold)}
    .rules-hero p:not(.draft-note){font-size:1.08rem;color:var(--muted);max-width:38rem;margin:0 0 28px}
    .rules-hero .draft-note{max-width:47rem;margin-top:24px}
    .base-rules .quick-only{margin-top:29px;max-width:900px}
    .base-rules .quick-only ol{display:grid;grid-template-columns:1fr 1fr;column-gap:30px;counter-reset:rule}
    .base-rules .quick-only li:nth-child(2){border-top:0}
    .forbidden-section{background:#221d1b;border-top:1px solid #6e463a;border-bottom:1px solid #6e463a}
    .forbidden-section .base-box{max-width:900px;margin-top:29px}
    .forbidden-section .base-box ul{display:grid;grid-template-columns:1fr 1fr;column-gap:30px}
    .forbidden-section .base-box li:nth-child(2){border-top:0}
    .scenario-section{background:#15231b}
    .scenario-section #rules-search{max-width:900px}
    .scenario-section .topic-list{max-width:900px}
    @media(max-width:780px){
      .rules-hero{padding:52px 0 48px}
      .base-rules .quick-only ol,.forbidden-section .base-box ul{grid-template-columns:1fr}
      .base-rules .quick-only li:nth-child(2),.forbidden-section .base-box li:nth-child(2){border-top:1px solid var(--line)}
      .hero-actions{align-items:stretch}
      .arrival-grid{grid-template-columns:1fr}
      .arrival-card{min-height:0}
    }
    @media(max-width:420px){
      .nav{flex-wrap:wrap;justify-content:flex-start;padding:8px 0;gap:4px}
      .navlinks{width:100%;justify-content:space-between;gap:6px;font-size:.78rem}
      section[id]{scroll-margin-top:112px}
    }
    @media(max-width:360px){.navlinks{font-size:.74rem}.brand{font-size:.81rem}}