:root{--blue:#1478F2;--blue2:#2F8CFF;--deep:#075DC9;--ink:#172033;--text:#3E4859;--muted:#6F7A89;--soft:#98A1AF;--sub:#F7FAFF;--pale:#EDF5FF;--gray:#F5F6F8;--line:rgba(20,120,242,.12);--gline:rgba(30,50,70,.08);--shadow:0 14px 38px rgba(21,67,118,.08);--bshadow:0 16px 42px rgba(20,120,242,.15);--wrap:1280px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font:15px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--text);background:#fff;overflow-x:hidden}body.locked{overflow:hidden}a{text-decoration:none;color:inherit}button,input{font:inherit}.wrap{width:min(var(--wrap),calc(100% - 36px));margin:auto}.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.96);border-bottom:1px solid var(--gline);backdrop-filter:blur(12px)}.desktop-nav{height:74px;display:grid;grid-template-columns:minmax(220px,1fr) auto minmax(260px,1fr);align-items:center;gap:16px}.brand{display:flex;align-items:center;gap:9px;min-width:0}.brand img{max-width:145px;max-height:40px;object-fit:contain}.brand strong{font-size:23px;color:var(--blue);white-space:nowrap}.brand em{font-style:normal;font-size:12px;color:var(--deep);background:var(--pale);padding:4px 8px;border-radius:999px;white-space:nowrap}.main-nav,.nav-actions{display:flex;align-items:center;gap:4px;white-space:nowrap}.main-nav a,.nav-actions a,.nav-actions button{min-height:44px;display:flex;align-items:center;padding:0 10px;border:0;border-radius:12px;background:transparent;color:#506075;cursor:pointer}.main-nav a:hover,.main-nav a.is-active,.nav-actions a:hover,.nav-actions button:hover{background:var(--pale);color:var(--blue)}.nav-actions{justify-content:flex-end}.mobile-nav{display:none;height:62px;align-items:center;justify-content:space-between;padding:0 14px}.mobile-nav button,.mobile-nav>a:not(.mobile-brand){width:44px;height:44px;border:0;background:transparent;border-radius:12px;display:grid;place-items:center;font-size:22px}.mobile-brand{font-size:20px;font-weight:900;color:var(--blue)}.mobile-brand img{max-width:140px;max-height:36px;object-fit:contain}main{min-height:50vh}.hero{padding:62px 0 40px;background:linear-gradient(180deg,#fbfdff,#fff)}.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:end}.eyebrow,.label{display:inline-block;font-size:12px;font-weight:850;color:var(--blue);letter-spacing:.08em}.label{background:var(--pale);padding:5px 9px;border-radius:999px;letter-spacing:0}.hero h1{margin:10px 0 16px;color:var(--ink);font-size:clamp(36px,4.5vw,60px);line-height:1.1;letter-spacing:-.04em}.lead{font-size:18px;color:#536173;max-width:850px}.side-note{padding:22px;border-left:3px solid var(--blue);background:var(--sub);border-radius:0 16px 16px 0}.section{padding:68px 0}.section.alt{background:var(--sub)}.section.pale{background:var(--pale)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:26px}.section h2,.section h3{color:var(--ink);line-height:1.25;margin-top:0}.section h2{font-size:clamp(27px,3vw,38px)}.section h3{font-size:19px}.section-head p{max-width:660px;color:var(--muted)}.text-link{color:var(--blue);font-weight:750}.text-link:hover{text-decoration:underline}.primary{display:inline-flex;min-height:46px;align-items:center;justify-content:center;padding:0 18px;border-radius:13px;background:linear-gradient(135deg,#3A96FF 0%,#1478F2 55%,#0863D3 100%);color:#fff;font-weight:800;box-shadow:var(--bshadow)}.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.card-grid.two{grid-template-columns:repeat(2,1fr)}.card-grid.four{grid-template-columns:repeat(4,1fr)}.card{padding:22px;border:1px solid var(--gline);border-radius:18px;background:#fff;box-shadow:var(--shadow)}.card .tag{font-size:12px;color:var(--blue);font-weight:850}.card p:last-child{margin-bottom:0}.plain-list{border-top:1px solid var(--gline)}.plain{display:grid;grid-template-columns:minmax(170px,.35fr) 1fr;gap:20px;padding:22px 0;border-bottom:1px solid var(--gline)}.plain h3{margin:0}.topic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.topic{padding:26px;border:1px solid var(--gline);border-radius:20px;background:#fff}.boundary{margin-top:14px;padding-top:12px;border-top:1px dashed var(--line);font-size:13px;color:var(--muted)}.city-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:12px}.city-item{grid-column:span 4;padding:22px;border:1px solid var(--line);border-radius:18px;background:#fff}.city-item:nth-child(2),.city-item:nth-child(5){grid-column:span 5}.city-item:nth-child(3),.city-item:nth-child(6){grid-column:span 3}.masonry{columns:3 280px;column-gap:14px}.masonry .card{break-inside:avoid;margin:0 0 14px}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.step{padding:20px;border-top:3px solid #cfe4ff;background:#fff;border-radius:0 0 16px 16px}.chips{display:flex;flex-wrap:wrap;gap:12px}.chip{flex:1 1 220px;padding:22px;min-height:180px;border:1px solid var(--line);border-radius:20px;background:#fff}.chip:nth-child(3n+1){flex-basis:300px}.qa{display:grid;gap:10px}.qa-row{display:grid;grid-template-columns:50px 1fr;gap:14px;padding:19px 0;border-bottom:1px solid var(--gline)}.qno{width:44px;height:44px;border-radius:13px;background:var(--pale);color:var(--blue);font-weight:900;display:grid;place-items:center}.story-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:18px}.story-main{padding:32px;border-radius:22px;background:#172033;color:#dfe8f3}.story-main h2{color:#fff}.story-list{display:grid;gap:12px}.story-list .card{box-shadow:none}.guide-list{counter-reset:g;display:grid;gap:12px}.guide{counter-increment:g;display:grid;grid-template-columns:56px 1fr;gap:14px;padding:20px;border:1px solid var(--gline);border-radius:16px;background:#fff}.guide:before{content:counter(g,decimal-leading-zero);font-size:23px;font-weight:900;color:var(--blue)}.principles{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.notice-list{display:grid;gap:12px}.notice{display:grid;grid-template-columns:150px 1fr;gap:18px;padding:22px;border:1px solid var(--gline);border-radius:16px;background:#fff}.notice>strong{color:var(--blue)}.app-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:26px;align-items:center}.app-art{min-height:470px;border-radius:28px;background:linear-gradient(145deg,#eaf4ff,#1478f2);display:grid;place-items:center;padding:24px}.app-art img{max-width:100%;max-height:450px;object-fit:contain;border-radius:22px}.phone{width:min(260px,75%);aspect-ratio:.52;border:10px solid #fff;border-radius:38px;background:linear-gradient(#fff,#edf5ff);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;box-shadow:0 20px 45px rgba(3,50,110,.22)}.phone b{font-size:27px;color:var(--ink)}.risk-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.warning{padding:22px;border-radius:16px;background:#fff7ed;border:1px solid #fed7aa;color:#7c4a1a}.rules{display:grid;grid-template-columns:250px 1fr;gap:24px}.rule-nav{position:sticky;top:96px;align-self:start;padding:17px;border-radius:16px;background:var(--sub)}.rule-nav a{display:block;padding:8px 10px;border-radius:9px}.rule-nav a:hover{background:var(--pale);color:var(--blue)}.rule-body section{padding-bottom:24px;margin-bottom:24px;border-bottom:1px solid var(--gline)}.faq details{padding:18px 0;border-bottom:1px solid var(--gline)}.faq summary{cursor:pointer;font-size:17px;font-weight:800;color:var(--ink)}.brand-story{display:grid;grid-template-columns:.8fr 1.2fr;gap:26px}.quote{position:sticky;top:100px;padding:30px;border-radius:22px;background:var(--blue);color:#fff;font-size:24px}.channel-strip{border-top:1px solid var(--gline);border-bottom:1px solid var(--gline)}.channel-scroll{display:flex;justify-content:space-between;gap:8px;overflow-x:auto;scrollbar-width:none;padding:12px 0}.channel-scroll a{white-space:nowrap;padding:7px 11px;border-radius:999px}.channel-scroll a:before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--blue);margin-right:7px}.channel-scroll a:hover{background:var(--pale);color:var(--blue)}.home-editor{display:grid;grid-template-columns:.9fr 1.35fr .9fr;gap:16px}.home-box{padding:27px;border:1px solid var(--line);border-radius:22px;background:#fff;box-shadow:var(--shadow)}.home-box h1{font-size:clamp(32px,3.6vw,52px);margin:8px 0 15px;color:var(--ink);line-height:1.1}.home-banner{padding:0;overflow:hidden;min-height:400px}.home-banner img{width:100%;height:100%;object-fit:cover}.brand-visual{min-height:400px;padding:36px;display:flex;flex-direction:column;justify-content:flex-end;color:#fff;background:linear-gradient(135deg,#dceeff,#1478F2 65%,#075DC9)}.brand-visual b{font-size:42px}.home-side{display:grid;gap:10px}.home-side a{padding:14px;border-radius:14px;background:var(--sub);border:1px solid transparent}.home-side a:hover{border-color:var(--line);background:var(--pale)}.home-side b{display:block;color:var(--ink)}.home-side span{font-size:13px;color:var(--muted)}.split{display:grid;grid-template-columns:1fr 1fr;gap:16px}.split>article{padding:28px;border-radius:22px}.split .blue{color:#fff;background:linear-gradient(135deg,#1478F2,#075DC9)}.split .blue h2{color:#fff}.split .light{background:var(--pale);border:1px solid var(--line)}.declaration{padding:42px;border-radius:26px;background:#0B1F38;color:#EAF3FF}.declaration h2{color:#fff}.site-footer{padding:56px 0 105px;background:#0B1F38;color:#EAF3FF}.footer-grid{display:grid;grid-template-columns:1.1fr 2fr;gap:38px}.footer-logo{max-width:150px;max-height:42px;object-fit:contain}.footer-grid p{color:#bed1e6}.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.footer-links b{display:block;color:#fff;margin-bottom:8px}.footer-links a{display:block;color:#bad0e7;padding:4px 0}.footer-links a:hover{color:#fff}.footer-note{margin-top:34px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);color:#aac2dc;font-size:13px}.copy{margin-top:14px;color:#7796b8;font-size:12px}.overlay{position:fixed;inset:0;z-index:88;background:rgba(7,24,45,.42);opacity:0;visibility:hidden;pointer-events:none}.overlay.open{opacity:1;visibility:visible;pointer-events:auto}.channel-menu,.search-panel{position:fixed;left:0;right:0;top:74px;z-index:90;background:#fff;box-shadow:0 20px 50px rgba(7,40,80,.15);opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-12px);transition:.2s}.channel-menu.open,.search-panel.open{opacity:1;visibility:visible;pointer-events:auto;transform:none}.panel{padding-top:18px;padding-bottom:24px;max-height:calc(100vh - 88px);overflow:auto}.panel-head{display:flex;align-items:center;justify-content:space-between}.panel-head h2{margin:0;color:var(--ink)}.panel-head button{width:44px;height:44px;border:0;border-radius:13px;background:var(--gray);font-size:24px;cursor:pointer}.menu-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.menu-grid h3{color:var(--blue)}.menu-grid a{display:block;padding:9px 0;border-bottom:1px solid var(--gline)}.menu-grid b{display:block;color:var(--ink)}.menu-grid span{font-size:12px;color:var(--muted)}.search-box{display:flex;align-items:center;gap:8px;height:58px;padding:0 16px;border:1px solid var(--line);border-radius:15px;background:var(--sub)}.search-box input{width:100%;border:0;outline:0;background:transparent}.search-links{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.search-links a{padding:16px;border:1px solid var(--gline);border-radius:14px;background:#fff}.search-links a[hidden]{display:none}.mobile-bottom{display:none}:focus-visible{outline:3px solid rgba(20,120,242,.3);outline-offset:3px}
@media(max-width:1120px){.desktop-nav{grid-template-columns:220px auto 195px}.brand em,.nav-actions a,.nav-actions button{font-size:0}.nav-actions a,.nav-actions button{width:44px;justify-content:center}.home-editor{grid-template-columns:1fr 1.35fr}.home-side{grid-column:1/-1;grid-template-columns:repeat(4,1fr)}.card-grid.four{grid-template-columns:repeat(2,1fr)}.steps{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr}}
@media(max-width:820px){.desktop-nav{display:none}.mobile-nav{display:flex}.channel-menu,.search-panel{top:62px}.channel-menu{left:auto;width:min(92vw,420px);height:calc(100vh - 62px);transform:translateX(100%)}.channel-menu.open{transform:none}.panel{max-height:100%}.menu-grid{grid-template-columns:1fr}.search-panel{height:calc(100vh - 62px)}.search-links{grid-template-columns:1fr 1fr}.hero{padding-top:44px}.hero-grid,.home-editor,.story-layout,.app-layout,.rules,.brand-story,.split{grid-template-columns:1fr}.home-editor{display:flex;flex-direction:column}.home-box:first-child{order:1}.home-banner{order:2}.home-side{order:3;grid-template-columns:1fr 1fr}.card-grid,.card-grid.two,.topic-grid,.principles,.risk-grid{grid-template-columns:1fr}.city-grid{grid-template-columns:1fr}.city-item,.city-item:nth-child(2),.city-item:nth-child(3),.city-item:nth-child(5),.city-item:nth-child(6){grid-column:auto}.masonry{columns:1}.plain,.notice{grid-template-columns:1fr}.rule-nav,.quote{position:static}.footer-links{grid-template-columns:1fr 1fr}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:70;display:grid;grid-template-columns:repeat(5,1fr);background:rgba(255,255,255,.96);border-top:1px solid var(--gline);padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom a{min-height:58px;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:18px;color:#6c7786}.mobile-bottom span{font-size:11px}.mobile-bottom a.is-active{color:var(--blue);font-weight:800}}
@media(max-width:520px){.wrap{width:calc(100% - 30px)}.section{padding:48px 0}.home-side,.search-links,.steps{grid-template-columns:1fr}.footer-links{grid-template-columns:1fr 1fr}.declaration{padding:30px 22px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}