*{box-sizing:border-box}
:root{--bg:#0E0E0E;--panel:#181818;--panel2:#202020;--gold:#E8B84A;--gold2:#F6D56A;--ink:#F7F1DE;--muted:#C9BBA0;--dim:#8E8372;--line:rgba(232,184,74,.22)}
html{scroll-behavior:smooth;overflow-x:hidden}body{margin:0;background:radial-gradient(circle at 50% -20%,#242014 0,#0E0E0E 38%,#0E0E0E 100%);color:var(--ink);font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.82;overflow-x:hidden}a{color:var(--gold);text-underline-offset:3px}a:hover{color:var(--gold2)}img{max-width:100%}
.site-header{position:sticky;top:0;z-index:9999;background:rgba(17,17,17,.97);border-bottom:1px solid rgba(232,184,74,.26);box-shadow:0 12px 34px rgba(0,0,0,.32);backdrop-filter:blur(10px)}.header-inner{max-width:1180px;min-height:68px;margin:auto;padding:0 18px;display:flex;align-items:center;gap:22px}.site-logo{display:flex;align-items:center;text-decoration:none;flex:0 0 auto}.site-logo img{height:38px;width:auto;max-width:158px;object-fit:contain}.logo-fallback{display:inline-flex;align-items:center;justify-content:center;height:38px;min-width:132px;padding:0 12px;border:1px solid var(--line);border-radius:9px;color:var(--gold);font-weight:800}.nav-core{display:flex;align-items:center;justify-content:center;gap:2px;flex:1}.nav-core a{position:relative;color:#F1E5C8;padding:9px 12px;text-decoration:none;font-weight:700;white-space:nowrap}.nav-core a:after{content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;background:transparent}.nav-core a.is-current,.nav-core a:hover{color:var(--gold)}.nav-core a.is-current:after,.nav-core a:hover:after{background:var(--gold)}
.main-btn{display:inline-flex;align-items:center;justify-content:center;height:40px;min-width:92px;padding:0 18px;border-radius:8px;background:linear-gradient(180deg,#F6D56A 0%,#E8B84A 55%,#C8962E 100%);color:#14110A;text-decoration:none;font-weight:800;box-shadow:0 8px 20px rgba(200,150,46,.22)}.main-btn:hover{color:#14110A;transform:translateY(-1px)}.menu-toggle{display:none;background:transparent;border:0;color:var(--gold);padding:6px 0;align-items:center;gap:3px;flex-direction:column}.menu-toggle span{display:block;width:20px;height:2px;background:var(--gold)}.menu-toggle b{font-size:11px;margin-top:2px}
.channel-bar{background:#181818;border-top:1px solid rgba(232,184,74,.08)}.channel-inner{max-width:1180px;margin:auto;padding:0 18px;display:flex;overflow-x:auto;scrollbar-width:thin}.channel-inner a{flex:0 0 auto;padding:10px 10px;color:#B9AE97;text-decoration:none;font-size:14px;white-space:nowrap}.channel-inner a:hover{color:var(--gold)}
.mobile-drawer,.drawer-mask{display:none}.site-main{max-width:1180px;margin:0 auto;padding:38px 74px 72px 18px}.content-shell{max-width:940px;margin:0 auto}.reading-shell{max-width:820px;margin:0 auto}.breadcrumb{display:flex;align-items:center;gap:8px;margin:0 0 20px;color:var(--dim);font-size:14px}.breadcrumb a{color:var(--muted);text-decoration:none}.breadcrumb:before{content:"";width:24px;height:1px;background:var(--gold)}
.page-head{padding:28px 0 22px;border-bottom:1px solid var(--line);margin-bottom:26px}.page-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--gold);font-size:13px;font-weight:800;letter-spacing:.14em;text-transform:uppercase}.page-kicker:before{content:"";width:26px;height:1px;background:var(--gold)}.page-head h1{font-size:clamp(31px,4.2vw,44px);line-height:1.2;margin:8px 0 12px;color:#F4D37C;letter-spacing:.01em}.page-head p{max-width:720px;margin:0;color:var(--muted);font-size:17px}
section{margin:36px 0}.section-title{font-size:25px;line-height:1.4;margin:0 0 12px;color:var(--gold)}.section-title .num{display:inline-grid;place-items:center;width:28px;height:28px;margin-right:9px;border:1px solid var(--gold);border-radius:50%;font-size:13px;vertical-align:3px}.text-panel,.notice-band,.index-tile,.fact-box,.qa-item,.route-card{background:linear-gradient(180deg,#1D1D1D,#171717);border:1px solid var(--line);border-radius:12px}.text-panel{padding:24px}.text-panel p:first-of-type{margin-top:0}.text-panel p:last-child{margin-bottom:0}.muted{color:var(--muted)}.small{color:var(--dim);font-size:14px}.notice-band{padding:18px 22px;border-left:4px solid var(--gold);color:#E8D9B8}.notice-band h2{margin:0 0 6px;color:var(--gold);font-size:20px}.notice-band p{margin:0}
.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:12px;background:#1C1C1C;aspect-ratio:16/9;border:1px solid rgba(232,184,74,.16)}.media>img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center;display:block}.media-placeholder{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:#191919;color:var(--dim);font-size:14px}.media.hero-media{height:210px;aspect-ratio:auto}.media.story-media{height:224px;aspect-ratio:auto}.media.slim-media{height:176px;aspect-ratio:auto}
.home-hero{margin-top:0}.hero-frame{max-width:1040px;margin:0 auto;padding:10px;border:1px solid var(--line);border-radius:18px;background:#141414;box-shadow:0 18px 48px rgba(0,0,0,.38)}.home-intro{max-width:880px;margin:26px auto 0;text-align:center}.home-intro .eyebrow{color:var(--gold);font-size:13px;font-weight:800;letter-spacing:.16em}.home-intro h1{font-size:clamp(30px,4.5vw,44px);line-height:1.18;margin:8px 0 10px;color:#F4D37C}.home-intro p{margin:0;color:var(--muted);font-size:17px}
.topic-strip{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden}.topic-strip a{min-height:92px;padding:16px 12px;background:#171717;text-decoration:none;color:var(--ink);display:flex;flex-direction:column;justify-content:center}.topic-strip strong{color:var(--gold);font-size:16px}.topic-strip span{margin-top:4px;color:var(--muted);font-size:13px;line-height:1.5}.topic-strip a:hover{background:#202020}
.home-note{display:grid;grid-template-columns:150px 1fr;gap:22px;align-items:center;padding:21px 24px;border-top:1px solid var(--gold);border-bottom:1px solid rgba(232,184,74,.36)}.home-note b{color:var(--gold);font-size:20px}.home-note p{margin:0;color:#E6D6B3}.story-stack{max-width:900px;margin-left:auto;margin-right:auto}.story-copy{margin-top:14px;padding:22px 24px;background:#171717;border:1px solid var(--line);border-radius:12px}.story-copy h2{margin:0 0 10px;color:var(--gold);font-size:24px}.story-copy p{margin:0 0 10px;color:#EADFC7}.story-copy p:last-child{margin-bottom:0}.home-app{display:grid;grid-template-columns:1.2fr .8fr;gap:18px;align-items:center;padding:22px;background:#171717;border:1px solid var(--line);border-radius:12px}.home-app h2{margin:0 0 8px;color:var(--gold)}.home-app p{margin:0 0 10px;color:var(--muted)}.home-app .media{height:170px;aspect-ratio:auto}
.feature-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:18px;align-items:start}.feature-grid.reverse{grid-template-columns:.94fr 1.06fr}.feature-grid.reverse .media{order:2}.feature-grid.reverse .text-panel{order:1}.pair-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.trio-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.fact-box{padding:20px}.fact-box strong{display:block;color:var(--gold);font-size:17px;margin-bottom:7px}.fact-box p{margin:0;color:var(--muted)}.route-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.route-card{display:block;padding:18px;text-decoration:none;color:var(--ink)}.route-card b{display:block;color:var(--gold);margin-bottom:5px}.route-card span{display:block;color:var(--muted);font-size:14px;line-height:1.55}.route-card:hover{background:#202020}.related{display:flex;flex-wrap:wrap;gap:9px}.related a{display:inline-flex;padding:8px 12px;border:1px solid var(--line);border-radius:8px;background:#181818;text-decoration:none}.steps{display:grid;gap:12px;counter-reset:steps}.step{position:relative;padding:18px 20px 18px 58px;background:#181818;border:1px solid var(--line);border-radius:12px}.step:before{counter-increment:steps;content:counter(steps);position:absolute;left:18px;top:18px;width:26px;height:26px;display:grid;place-items:center;border-radius:50%;background:var(--gold);color:#111;font-weight:900}.step strong{display:block;color:#F1D17A;margin-bottom:4px}.step p{margin:0;color:var(--muted)}
.topic-table{width:100%;border-collapse:collapse;background:#171717;border:1px solid var(--line);overflow:hidden;border-radius:12px}.topic-table th,.topic-table td{padding:13px 14px;border-bottom:1px solid rgba(232,184,74,.12);text-align:left;vertical-align:top}.topic-table th{color:var(--gold);font-size:14px}.topic-table td{color:#E7D8B8}.topic-table tr:last-child td{border-bottom:0}.qa-list{display:grid;gap:12px}.qa-item{padding:20px}.qa-item h2{font-size:18px;line-height:1.5;margin:0 0 7px;color:var(--gold)}.qa-item p{margin:0;color:#E3D7BC}
.side-float{position:fixed;right:10px;top:42%;z-index:9000;display:flex;flex-direction:column;gap:7px;width:94px}.side-float a{display:flex;min-height:38px;align-items:center;justify-content:center;padding:7px 8px;background:#111;border:1px solid var(--line);border-radius:8px;text-decoration:none;color:var(--gold);font-size:13px;text-align:center}.side-float .side-primary{background:var(--gold);color:#111;font-weight:800}
.site-footer{background:#070707;border-top:1px solid var(--gold);color:#E7D7B0}.footer-topline{max-width:1180px;margin:auto;padding:18px 18px 0;display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:14px}.footer-topline a{text-decoration:none}.footer-grid{max-width:1180px;margin:auto;padding:28px 18px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}.footer-grid strong{display:block;color:var(--gold);margin-bottom:8px}.footer-grid a{display:block;color:var(--muted);text-decoration:none;margin:5px 0}.footer-brand img{height:38px;width:auto;max-width:156px;object-fit:contain}.footer-brand p{color:var(--muted);margin:10px 0 0}.footer-bottom{max-width:1180px;margin:auto;padding:18px;border-top:1px solid rgba(232,184,74,.15);text-align:center;color:var(--dim);font-size:14px}.mobile-bottom{display:none}body.drawer-open{overflow:hidden}
@media(max-width:980px){.header-inner{min-height:60px;display:grid;grid-template-columns:68px 1fr 84px;gap:8px;padding:0 12px}.menu-toggle{display:flex;justify-self:start}.site-logo{justify-self:center}.site-logo img{height:34px;max-width:126px}.nav-core{display:none}.header-btn{justify-self:end;min-width:80px;height:38px;padding:0 11px}.channel-bar{display:none}.mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(84vw,320px);background:#161616;z-index:12000;transform:translateX(-105%);transition:transform .2s ease;box-shadow:18px 0 40px rgba(0,0,0,.45);overflow-y:auto;padding-bottom:30px}.mobile-drawer.is-open{transform:translateX(0)}.drawer-mask{display:none;position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:11000;opacity:0;pointer-events:none;transition:opacity .18s ease}.drawer-mask.is-visible{display:block;opacity:1;pointer-events:auto}.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:14px;border-bottom:1px solid var(--line)}.drawer-logo img{height:34px;width:auto;max-width:136px;object-fit:contain}.drawer-close{border:1px solid var(--line);background:#111;color:var(--gold);border-radius:8px;padding:8px 10px}.drawer-group{padding:14px;border-bottom:1px solid rgba(232,184,74,.12)}.drawer-group strong{display:block;color:var(--gold);margin-bottom:7px}.drawer-group a{display:block;padding:9px 0;color:#E7D7B0;text-decoration:none}.site-main{padding:28px 14px 94px}.side-float{display:none}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:9500;display:grid;grid-template-columns:repeat(4,1fr);background:#0C0C0C;border-top:1px solid var(--gold)}.mobile-bottom a{padding:11px 6px;text-align:center;color:#E7D7B0;text-decoration:none;font-size:14px}.topic-strip{grid-template-columns:repeat(2,minmax(0,1fr))}.home-note{grid-template-columns:1fr;gap:6px}.home-app{grid-template-columns:1fr}.home-app .media{order:-1;height:150px}.feature-grid,.feature-grid.reverse,.pair-grid{grid-template-columns:1fr}.feature-grid.reverse .media,.feature-grid.reverse .text-panel{order:initial}.trio-grid,.route-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.media.hero-media{height:142px}.media.story-media{height:200px}.page-head{padding-top:16px}.page-head h1{font-size:clamp(27px,8vw,34px)}}
@media(max-width:540px){.header-inner{grid-template-columns:62px 1fr 80px}.header-btn{font-size:14px;min-width:76px;padding:0 9px}.site-logo img{max-width:116px}.trio-grid,.route-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.topic-table{font-size:14px}.topic-table th,.topic-table td{padding:10px}.home-intro p,.page-head p{font-size:16px}.text-panel{padding:20px}.media.story-media{height:188px}}