:root{--blue:#2563a8;--blue-dark:#153f70;--green:#3fa34d;--green-dark:#267535;--ink:#10243b;--muted:#56697f;--line:#dce7f1;--paper:#f5f9fc;--white:#fff;--shadow:0 18px 46px rgba(16,36,59,.10);--radius:20px;--max:1160px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;color:var(--ink);background:var(--paper);line-height:1.72;-webkit-font-smoothing:antialiased}a{color:inherit}.wrap{width:min(var(--max),calc(100% - 40px));margin:auto}.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:12px;z-index:99;background:#fff;padding:10px;border-radius:8px}.site-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(220,231,241,.9)}.nav{min-height:70px;display:flex;align-items:center;justify-content:space-between;gap:22px}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;font-weight:800;letter-spacing:-.02em}.mark{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,var(--blue),var(--green));box-shadow:0 8px 20px rgba(37,99,168,.22)}.links{display:flex;align-items:center;gap:25px}.links a{text-decoration:none;color:var(--muted);font-size:.94rem;font-weight:650}.links a:hover{color:var(--blue)}.ask{border:0;border-radius:999px;padding:11px 18px;color:#fff!important;background:var(--green);cursor:pointer;font:700 .93rem inherit}.menu{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;padding:9px 12px;font-weight:700}.hero{position:relative;overflow:hidden;color:#fff;background:linear-gradient(120deg,#0c2744 0%,var(--blue-dark) 52%,#2563a8 100%);padding:92px 0 82px}.hero:after{content:"";position:absolute;width:520px;height:520px;border-radius:50%;right:-140px;top:-180px;background:radial-gradient(circle,rgba(63,163,77,.36),transparent 68%)}.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.3fr .7fr;gap:68px;align-items:center}.kicker{display:inline-flex;gap:8px;align-items:center;padding:7px 13px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);font-weight:700;font-size:.84rem}.hero h1{font-size:clamp(2.45rem,6vw,4.65rem);line-height:1.08;letter-spacing:-.045em;margin:23px 0 20px}.hero p{font-size:1.14rem;color:rgba(255,255,255,.85);max-width:710px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;border-radius:999px;padding:0 21px;text-decoration:none;font-weight:800;border:1px solid transparent;cursor:pointer;font:800 1rem inherit}.btn.primary{background:var(--green);color:#fff}.btn.secondary{border-color:rgba(255,255,255,.35);color:#fff;background:rgba(255,255,255,.08)}.source-card{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.22);border-radius:24px;padding:27px}.source-card strong{font-size:1.1rem}.source-card ul{padding-left:19px;margin:16px 0 0;color:rgba(255,255,255,.82)}.section{padding:76px 0}.section.white{background:#fff}.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:31px}.eyebrow{color:var(--green-dark);font-size:.78rem;font-weight:900;letter-spacing:.14em;text-transform:uppercase}.section h2,.article h1{letter-spacing:-.035em;line-height:1.18}.section h2{font-size:clamp(1.9rem,4vw,3rem);margin:7px 0 0}.section-head p{max-width:530px;color:var(--muted);margin:0}.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.card{display:flex;flex-direction:column;min-height:242px;padding:24px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);box-shadow:0 3px 12px rgba(16,36,59,.035);text-decoration:none;transition:.22s}.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#bed3e6}.flag{font-size:1.75rem}.card h3{font-size:1.12rem;margin:16px 0 4px}.card .label{font-size:.82rem;color:var(--blue);font-weight:800}.card p{font-size:.91rem;color:var(--muted);margin:11px 0 20px}.more{margin-top:auto;color:var(--green-dark);font-weight:800;font-size:.9rem}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.step{padding:25px;border-radius:18px;background:linear-gradient(180deg,#fff,#f7fbfe);border:1px solid var(--line)}.num{width:36px;height:36px;border-radius:11px;display:grid;place-items:center;color:#fff;background:var(--blue);font-weight:900}.step h3{margin:18px 0 8px}.step p{margin:0;color:var(--muted);font-size:.94rem}.notice{background:#eef7ef;border:1px solid #cde6d1;border-left:4px solid var(--green);border-radius:14px;padding:18px 20px;color:#294f31}.article-hero{background:linear-gradient(135deg,#e9f2fa,#eef8ef);padding:64px 0 54px;border-bottom:1px solid var(--line)}.crumb{font-size:.88rem;color:var(--muted);margin-bottom:22px}.article h1{font-size:clamp(2.2rem,5vw,3.8rem);max-width:850px;margin:0 0 18px}.lead{font-size:1.12rem;color:var(--muted);max-width:780px}.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:44px;align-items:start}.article-body{background:#fff;border:1px solid var(--line);border-radius:22px;padding:34px}.article-body h2{font-size:1.55rem;margin:36px 0 12px}.article-body h2:first-child{margin-top:0}.article-body p,.article-body li{color:#344b62}.checklist{padding-left:0;list-style:none}.checklist li{position:relative;padding:12px 0 12px 34px;border-bottom:1px solid var(--line)}.checklist li:before{content:"✓";position:absolute;left:0;top:11px;color:var(--green-dark);font-weight:900}.sidebar{position:sticky;top:94px;display:grid;gap:16px}.side-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px}.side-card h2{font-size:1.08rem;margin:0 0 10px}.side-card p{font-size:.9rem;color:var(--muted)}.official{display:block;background:var(--blue);color:#fff;text-decoration:none;border-radius:12px;padding:12px 14px;text-align:center;font-weight:800}.source-list{display:grid;gap:14px}.source{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;display:grid;grid-template-columns:1fr auto;gap:20px}.source h2{font-size:1.08rem;margin:0}.source p{color:var(--muted);margin:5px 0 0}.source a{align-self:center;color:var(--blue);font-weight:800}.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:0 20px}.faq details+details{margin-top:10px}.faq summary{cursor:pointer;font-weight:800;padding:17px 0}.faq p{color:var(--muted);margin:0 0 18px}.footer{background:#0b2036;color:rgba(255,255,255,.72);padding:54px 0 30px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px}.footer .brand{color:#fff}.footer a{color:rgba(255,255,255,.72);text-decoration:none}.footer a:hover{color:#fff}.footer-links{display:grid;gap:8px}.fine{border-top:1px solid rgba(255,255,255,.12);margin-top:35px;padding-top:22px;font-size:.82rem}.notfound{text-align:center;padding:100px 0}.notfound .mark{margin:auto;width:64px;height:64px;font-size:1.3rem}.notfound h1{font-size:clamp(2.5rem,7vw,5rem);margin:24px 0 8px}@media(max-width:960px){.grid,.steps{grid-template-columns:repeat(2,1fr)}.hero-grid,.article-grid{grid-template-columns:1fr}.source-card{max-width:520px}.sidebar{position:static}.footer-grid{grid-template-columns:1fr 1fr}}@media(max-width:720px){.wrap{width:min(100% - 28px,var(--max))}.menu{display:block}.links{display:none;position:absolute;top:70px;left:0;right:0;background:#fff;padding:18px 20px 24px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.links.open{display:flex}.links .ask{width:100%}.hero{padding:68px 0}.hero h1{font-size:2.6rem}.section{padding:58px 0}.section-head{align-items:start;flex-direction:column}.grid,.steps{grid-template-columns:1fr}.article-body{padding:24px 19px}.source{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.nav{min-height:64px}.links{top:64px}}