:root{--bg:#07111A;--deep:#050B12;--panel:#0D1B2A;--panel2:#102538;--card:#132B3E;--text:#D7E2EA;--title:#F4F8FC;--muted:#9CB0C0;--sub:#748A9D;--blue:#2F80ED;--light:#56A8F5;--dark:#174A7E;--cyan:#2A9DAD;--line:rgba(86,168,245,.20);--line2:rgba(86,168,245,.16);--shadow:0 14px 36px rgba(0,0,0,.26);--r:14px;--max:1080px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.7 system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden;padding-top:104px;padding-bottom:0}body.is-locked{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.shell{width:min(calc(100% - 32px),var(--max));margin-inline:auto}.skip-link{position:fixed;left:16px;top:-60px;z-index:200;background:var(--title);color:var(--deep);padding:9px 14px;border-radius:8px}.skip-link:focus{top:8px}.topbar{position:fixed;z-index:90;left:0;right:0;top:0;height:20px;background:var(--deep);border-bottom:1px solid rgba(255,255,255,.03)}.topbar-inner{height:20px;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted)}.text-button{border:0;background:none;color:var(--text);padding:0 2px}.site-header{position:fixed;z-index:89;left:0;right:0;top:20px;height:54px;background:rgba(13,27,42,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}.brand-row{height:54px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;min-height:44px}.brand img,.menu-brand img,.footer-brand img{height:24px;width:auto;object-fit:contain;object-position:center}.brand-fallback{font-size:16px;font-weight:760;color:var(--title);letter-spacing:.02em}.brand-fallback small,.menu-brand small{font-size:11px;color:var(--muted);margin-left:8px;letter-spacing:.14em}.brand-actions{display:flex;align-items:center;gap:8px}.app-link,.icon-button{min-height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;padding:0 14px}.app-link{background:linear-gradient(135deg,#56A8F5 0%,#2F80ED 52%,#174A7E 100%);color:#fff;box-shadow:0 6px 16px rgba(47,128,237,.24)}.icon-button{border:1px solid var(--line);background:var(--panel2);color:var(--title)}.quick-nav{position:fixed;z-index:88;left:0;right:0;top:74px;height:30px;background:rgba(7,17,26,.97);border-bottom:1px solid rgba(86,168,245,.08)}.quick-nav-inner{height:30px;display:flex;align-items:center;gap:6px}.quick-nav a{font-size:13px;color:var(--muted);padding:4px 10px;border-radius:8px;line-height:1.2}.quick-nav a.is-current{background:linear-gradient(135deg,var(--dark),var(--blue));color:#fff;box-shadow:0 6px 16px rgba(47,128,237,.24)}
.site-main{min-height:60vh}.section{padding:58px 0;border-bottom:1px solid rgba(86,168,245,.08)}.section-tight{padding:38px 0}.hero{padding:68px 0 58px;background:radial-gradient(circle at 76% 20%,rgba(47,128,237,.16),transparent 34%),linear-gradient(180deg,rgba(16,37,56,.65),rgba(7,17,26,0))}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--light);font-size:13px;font-weight:700;letter-spacing:.08em;margin-bottom:14px}.eyebrow:before{content:"";width:26px;height:1px;background:var(--light)}h1,h2,h3{color:var(--title);line-height:1.3;margin:0 0 16px}h1{font-size:24px}h2{font-size:20px}h3{font-size:16px}p{margin:0 0 16px}.lead{font-size:17px;color:#e8f1f7;max-width:780px}.muted{color:var(--muted)}.hero-grid,.split,.content-aside,.app-layout{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(280px,.65fr);gap:28px;align-items:center}.hero-card,.card,.note,.info-block,.faq-item,.route-card{background:linear-gradient(180deg,rgba(19,43,62,.96),rgba(13,27,42,.96));border:1px solid var(--line2);border-radius:var(--r);box-shadow:var(--shadow)}.hero-card{padding:22px}.hero-card strong{display:block;color:var(--title);font-size:16px;margin-bottom:8px}.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0}.tag{padding:6px 10px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:13px;background:rgba(16,37,56,.7)}.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.btn{min-height:44px;padding:0 18px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;transition:filter .18s,box-shadow .18s,transform .18s}.btn-primary{background:linear-gradient(135deg,#56A8F5 0%,#2F80ED 52%,#174A7E 100%);color:#fff;box-shadow:0 6px 16px rgba(47,128,237,.24)}.btn-secondary{background:var(--panel);color:var(--text);border:1px solid var(--line)}.btn:hover,.app-link:hover{filter:brightness(1.08);box-shadow:0 0 0 3px rgba(86,168,245,.30),0 10px 24px rgba(47,128,237,.30)}.btn:active,.app-link:active{filter:brightness(1.12);box-shadow:0 0 0 4px rgba(86,168,245,.35),0 0 22px rgba(47,128,237,.48)}a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid #56A8F5;outline-offset:2px}.media-frame{min-height:220px;background:linear-gradient(145deg,var(--panel2),var(--panel));border:1px solid var(--line2);border-radius:var(--r);display:flex;align-items:center;justify-content:center;padding:18px;overflow:hidden}.media-frame img{display:block;max-width:100%;max-height:100%;width:100%;height:100%;object-fit:contain;object-position:center}.section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:24px}.section-head p{max-width:680px;color:var(--muted);margin:0}.feature-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:18px}.feature-grid .card{padding:22px}.feature-grid .card:nth-child(1){grid-column:span 7}.feature-grid .card:nth-child(2){grid-column:span 5}.feature-grid .card:nth-child(3){grid-column:span 5}.feature-grid .card:nth-child(4){grid-column:span 7}.card p{color:var(--muted)}.card-link{color:var(--light);font-weight:700}.cards-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.cards-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.card{padding:22px}.prose{width:min(100%,820px)}.prose p{color:var(--text)}.prose h2{margin-top:34px}.prose h3{margin-top:26px}.content-aside{align-items:start}.aside-stack{display:grid;gap:16px}.note{padding:20px}.note h2,.note h3{margin-bottom:10px}.route-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.route-card{padding:16px;min-height:122px}.route-card strong{display:block;color:var(--title);margin-bottom:7px}.route-card span{display:block;color:var(--muted);font-size:13px}.steps{counter-reset:step;display:grid;gap:14px}.step{counter-increment:step;display:grid;grid-template-columns:46px 1fr;gap:16px;align-items:start;padding:18px;background:var(--panel);border:1px solid var(--line2);border-radius:var(--r)}.step:before{content:counter(step);width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,var(--dark),var(--blue));display:grid;place-items:center;color:#fff;font-weight:800}.faq-list{display:grid;gap:14px}.faq-item{padding:20px}.faq-item h2{font-size:16px;margin-bottom:10px}.banner{height:200px;background:linear-gradient(135deg,var(--panel2),var(--panel));border:1px solid var(--line2);border-radius:var(--r);display:flex;align-items:center;justify-content:center;padding:20px;margin-bottom:28px}.banner img{width:100%;height:100%;object-fit:contain;object-position:center}.app-visual{width:240px;height:320px;max-width:100%;margin:auto;background:var(--panel2);border:1px solid var(--line2);border-radius:22px;display:flex;align-items:center;justify-content:center;padding:16px}.app-visual img{width:100%;height:100%;object-fit:contain;object-position:center}.mini-icon{width:48px;height:48px;object-fit:contain}.quote{border-left:3px solid var(--blue);padding:4px 0 4px 16px;color:#e7f1f8;margin:24px 0}.overlay{position:fixed;inset:0;z-index:110;background:rgba(0,0,0,.58);opacity:0;visibility:hidden;pointer-events:none;transition:.18s}.overlay.is-visible{opacity:1;visibility:visible;pointer-events:auto}.menu-panel{position:fixed;z-index:120;top:82px;right:max(16px,calc((100vw - 1080px)/2));width:min(440px,calc(100vw - 32px));max-height:68vh;overflow:auto;background:var(--deep);border:1px solid var(--line);border-radius:16px;box-shadow:0 24px 70px rgba(0,0,0,.5);padding:18px;opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-8px);transition:.18s}.menu-panel.is-visible{opacity:1;visibility:visible;pointer-events:auto;transform:none}.menu-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--line2)}.menu-brand{display:flex;align-items:center;gap:10px}.menu-brand span{font-weight:760;color:var(--title)}.menu-brand small{display:block;margin:0}.menu-groups{display:grid;gap:18px;padding-top:14px}.menu-groups h2{font-size:13px;color:var(--light);margin:0 0 8px}.menu-groups a{display:block;padding:10px;border-radius:10px}.menu-groups a:hover{background:var(--panel)}.menu-groups strong{display:block;font-size:14px;color:var(--title)}.menu-groups span{display:block;font-size:12px;color:var(--muted);margin-top:2px}.search-panel{position:fixed;z-index:125;left:50%;top:84px;transform:translateX(-50%) translateY(-8px);width:min(720px,calc(100vw - 32px));background:var(--deep);border:1px solid var(--line);border-radius:16px;box-shadow:0 24px 70px rgba(0,0,0,.5);padding:18px;opacity:0;visibility:hidden;pointer-events:none;transition:.18s}.search-panel.is-visible{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}.search-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}.search-head h2{margin:0}.search-box label{display:block;color:var(--muted);font-size:13px;margin-bottom:8px}.search-box input{width:100%;height:46px;border-radius:11px;border:1px solid var(--line);background:var(--panel);color:var(--title);padding:0 14px}.search-results{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-top:12px}.search-results a{padding:11px;border-radius:10px;background:var(--panel);border:1px solid var(--line2);color:var(--title)}.search-results span{display:block;color:var(--muted);font-size:12px}.site-footer{background:#040A10;border-top:1px solid var(--line);padding:42px 0 26px;margin-top:30px}.footer-grid{display:grid;grid-template-columns:1.2fr repeat(3,1fr);gap:28px}.footer-grid h2{font-size:13px;color:var(--light);margin-bottom:10px}.footer-grid a{display:block;color:var(--muted);font-size:13px;padding:4px 0}.footer-brand{display:flex;flex-direction:column;align-items:flex-start;gap:6px}.footer-brand strong{color:var(--title)}.footer-brand span{color:var(--muted);font-size:12px}.footer-note{border-top:1px solid var(--line2);margin-top:24px;padding-top:18px;font-size:13px;color:#C9D8E3}.mobile-bar{display:none}
@media(max-width:800px){body{padding-top:74px;padding-bottom:68px}.quick-nav{display:none}.hero{padding-top:46px}.hero-grid,.split,.content-aside,.app-layout{grid-template-columns:1fr}.feature-grid{grid-template-columns:1fr}.feature-grid .card:nth-child(n){grid-column:auto}.cards-3{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.mobile-bar{position:fixed;display:grid;grid-template-columns:repeat(4,1fr);z-index:85;left:0;right:0;bottom:0;min-height:52px;padding-bottom:env(safe-area-inset-bottom);background:rgba(4,10,16,.97);border-top:1px solid var(--line)}.mobile-bar a{min-height:52px;display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--muted)}.mobile-bar a.is-current{background:linear-gradient(180deg,rgba(47,128,237,.38),rgba(23,74,126,.36));color:#fff;box-shadow:0 -4px 16px rgba(47,128,237,.2)}.menu-panel{top:82px;max-height:calc(100vh - 110px)}.search-panel{inset:0;width:auto;border-radius:0;transform:none;padding:24px 16px;background:var(--deep)}.search-panel.is-visible{transform:none}.search-results{grid-template-columns:1fr}.site-footer{margin-bottom:0}.section{padding:44px 0}}
@media(max-width:560px){.shell{width:min(calc(100% - 32px),var(--max))}.app-link,.icon-button{padding:0 11px}.brand-fallback small{display:none}.cards-2,.route-list,.footer-grid{grid-template-columns:1fr}.section-head{align-items:start;flex-direction:column}.media-frame{min-height:180px}.hero-card{padding:18px}.topbar-inner{font-size:11px}.footer-grid{gap:18px}.banner{height:180px}}