*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
:root{--navy:#1e3a5f;--navy-deep:#0f2744;--amber:#d97706;--amber-soft:#fef3c7;--sky:#e0f2fe;--ink:#0c4a6e;--text:#1e293b;--muted:#64748b;--line:#bae6fd;--bg:#f8fafc}
body{font-family:"Noto Sans SC",system-ui,sans-serif;background:#fff;color:var(--text);line-height:1.78;font-size:16px}
a{color:var(--ink);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}

.site-header{background:#fff;border-bottom:3px solid var(--navy);position:sticky;top:0;z-index:360;box-shadow:0 3px 14px rgba(30,58,95,.07)}
.header-inner{max-width:1180px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px;position:relative}
.brand{display:flex;align-items:center;gap:10px;color:#0f172a;font-weight:600;font-size:.93rem}
.brand:hover{text-decoration:none}
.brand img{border-radius:10px;border:2px solid var(--line)}
.brand em{font-style:normal;color:var(--navy);font-weight:700}
.site-nav ul{display:flex;flex-wrap:wrap;gap:6px 18px;list-style:none}
.site-nav a{color:var(--muted);font-size:.9rem;padding:4px 0}
.site-nav a.active,.site-nav a:hover{color:var(--amber);font-weight:600;border-bottom:2px solid var(--navy);text-decoration:none}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;flex-direction:column;gap:5px}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--navy);transition:.2s}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.ads-top-bar{background:var(--sky);border-bottom:1px solid var(--line);padding:10px 0}
.applist-title{font-size:.78rem;color:var(--navy);text-align:center;margin-bottom:6px}
#ads{display:flex;justify-content:center;flex-wrap:wrap;gap:12px}

.flow-grid{display:grid;grid-template-columns:minmax(0,1fr) 210px;gap:34px;max-width:1180px;margin:0 auto;padding:30px 20px 44px}
.flow-main{min-width:0}

.flow-hero{background:linear-gradient(118deg,var(--navy-deep) 0%,var(--navy) 55%,#2563eb 100%);border-radius:22px;padding:40px 34px 34px;margin-bottom:42px;color:#fff;scroll-margin-top:92px;position:relative;overflow:hidden}
.flow-hero::before{content:"";position:absolute;left:-60px;bottom:-60px;width:220px;height:220px;background:radial-gradient(circle,rgba(217,119,6,.35) 0%,transparent 70%);pointer-events:none}
.flow-hero .flow-badge{display:inline-block;font-size:.76rem;font-weight:700;color:var(--navy-deep);background:var(--amber-soft);padding:5px 15px;border-radius:999px;margin-bottom:14px}
.flow-hero h1{font-size:clamp(1.36rem,3.6vw,1.9rem);line-height:1.35;margin-bottom:14px;color:#fff}
.flow-hero .flow-lede{color:#dbeafe;font-size:.99rem;margin-bottom:10px;text-align:justify;max-width:860px}
.flow-hero .flow-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.flow-hero .flow-tags span{font-size:.77rem;padding:5px 13px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.28);color:#eff6ff}

.flow-track{list-style:none;position:relative;padding:6px 0 18px}
.flow-track::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:4px;background:linear-gradient(180deg,var(--amber) 0%,var(--navy) 50%,var(--line) 100%);transform:translateX(-50%);border-radius:4px}

.flow-node{position:relative;padding:0 0 44px;scroll-margin-top:92px}
.flow-node:last-child{padding-bottom:10px}
.flow-node__dot{position:absolute;left:50%;top:10px;transform:translateX(-50%);width:20px;height:20px;background:var(--amber);border:4px solid #fff;box-shadow:0 0 0 4px var(--navy);border-radius:50%;z-index:2}
.flow-node__card{width:calc(50% - 40px);background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px 26px;box-shadow:0 10px 30px rgba(30,58,95,.09);transition:transform .18s,box-shadow .18s}
.flow-node__card:hover{transform:translateY(-3px);box-shadow:0 14px 36px rgba(30,58,95,.13)}
.flow-node:nth-child(odd) .flow-node__card{margin-right:auto;margin-left:0}
.flow-node:nth-child(even) .flow-node__card{margin-left:auto;margin-right:0}
.flow-node__card h2{font-size:1.13rem;margin-bottom:12px;color:var(--navy);line-height:1.4;border-left:4px solid var(--amber);padding-left:12px}
.flow-node__card p{margin-bottom:10px;color:#334155;text-align:justify;font-size:.96rem}
.flow-node__card figure{margin:16px 0 4px;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:var(--bg)}
.flow-node__card figcaption{font-size:.83rem;color:var(--muted);padding:10px 14px;background:var(--sky)}
.flow-tip{background:var(--amber-soft);border-left:4px solid var(--amber);padding:13px 16px;margin:12px 0;border-radius:0 12px 12px 0;font-size:.93rem;color:#78350f}

.flow-faq{margin-top:24px;padding-top:30px;border-top:2px dashed var(--line);scroll-margin-top:92px}
.flow-faq>h2{font-size:1.12rem;margin-bottom:16px;color:var(--navy)}
.flow-faq details{border:1px solid var(--line);margin-bottom:10px;background:#fff;border-radius:14px;overflow:hidden}
.flow-faq summary{padding:14px 18px;cursor:pointer;font-weight:500;list-style:none;color:#334155}
.flow-faq summary::-webkit-details-marker{display:none}
.flow-faq details[open] summary{background:var(--sky);border-bottom:1px solid var(--line);color:var(--navy)}
.flow-faq details p{padding:14px 18px;color:#475569;font-size:.94rem}

.flow-rail{position:sticky;top:92px;align-self:start;background:#fff;border:2px solid var(--navy);border-radius:18px;padding:18px 14px;box-shadow:0 12px 32px rgba(30,58,95,.1)}
.flow-rail h2{font-size:.8rem;color:var(--navy);margin-bottom:12px;font-weight:700}
.flow-rail ol{list-style:none;counter-reset:flownav}
.flow-rail li{counter-increment:flownav;margin-bottom:9px}
.flow-rail a{font-size:.82rem;color:var(--ink);display:block;padding:3px 0;line-height:1.38}
.flow-rail a::before{content:counter(flownav);display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;margin-right:7px;font-size:.68rem;font-weight:700;color:#fff;background:var(--navy);border-radius:50%;vertical-align:middle}

.flow-links{max-width:1180px;margin:0 auto;padding:0 20px 46px}
.flow-links h2{font-size:1.02rem;margin-bottom:12px;color:var(--navy)}
.flow-links ul{list-style:none;display:flex;flex-wrap:wrap;gap:10px 20px}
.flow-links a{font-size:.91rem}

.site-footer{background:var(--bg);border-top:3px solid var(--navy);padding:28px 20px;text-align:center;font-size:.88rem;color:var(--muted)}
.footer-links{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 16px;margin-bottom:10px}
.footer-links a{color:#475569}
.footer-sub{font-size:.82rem;color:var(--navy);margin-top:6px}

.prose-page{max-width:780px;margin:0 auto;padding:32px 20px 48px}
.prose-page h1{font-size:1.4rem;margin-bottom:16px;color:var(--navy)}
.prose-page p{margin-bottom:12px;color:#475569}

.error-page{max-width:560px;margin:80px auto;padding:20px;text-align:center}
.error-page h1{font-size:3rem;color:var(--navy);margin-bottom:12px}

@media(max-width:920px){
.flow-grid{grid-template-columns:1fr}
.flow-rail{order:-1;position:static;margin-bottom:12px}
.flow-track::before{left:24px;transform:none}
.flow-node__dot{left:24px;transform:translateX(-50%)}
.flow-node__card{width:calc(100% - 56px);margin-left:56px!important;margin-right:0!important}
.nav-toggle{display:flex}
.site-nav{position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:12px 20px;display:none;box-shadow:0 6px 18px rgba(0,0,0,.07)}
.site-nav.is-open{display:block}
.site-nav ul{flex-direction:column;gap:10px}
.flow-hero{padding:30px 22px 28px}
}