:root{--color-primary:#0f172a;--color-primary-700:#1e293b;--color-on-primary:#ffffff;--color-secondary:#334155;--color-accent:#0369a1;--color-accent-600:#0284c7;--color-accent-50:#eff6ff;--color-background:#f8fafc;--color-surface:#ffffff;--color-foreground:#020617;--color-muted:#e8ecf1;--color-muted-fg:#64748b;--color-border:#e2e8f0;--color-destructive:#dc2626;--color-success:#047857;--color-ring:#0369a1;--font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei","微软雅黑","Hiragino Sans GB","Source Han Sans SC","Noto Sans CJK SC","WenQuanYi Micro Hei",sans-serif;--font-mono:ui-monospace,"SFMono-Regular","Menlo","Consolas",monospace;--space-1:0.25rem;--space-2:0.5rem;--space-3:0.75rem;--space-4:1rem;--space-5:1.25rem;--space-6:1.5rem;--space-8:2rem;--space-12:3rem;--space-16:4rem;--space-20:5rem;--space-24:6rem;--radius-sm:6px;--radius:10px;--radius-lg:16px;--radius-xl:24px;--shadow-sm:0 1px 2px rgba(15,23,42,0.06);--shadow:0 4px 16px rgba(15,23,42,0.08);--shadow-lg:0 18px 48px rgba(15,23,42,0.12);--container:1200px;--transition:200ms cubic-bezier(0.4,0,0.2,1)}*,:after,:before{box-sizing:border-box}body,html{margin:0;padding:0}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{min-height:100dvh;font-family:var(--font-sans);font-size:16px;line-height:1.7;color:var(--color-foreground);background:var(--color-background);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation-duration:.01ms!important;transition-duration:.01ms!important}}img{max-width:100%;height:auto;display:block}a{color:var(--color-accent);text-decoration:none;transition:color var(--transition)}a:hover{color:var(--color-accent-600)}:focus-visible{outline:3px solid var(--color-ring);outline-offset:2px;border-radius:4px}h1,h2,h3,h4{color:var(--color-primary);line-height:1.3;margin:0 0 var(--space-4);font-weight:700;letter-spacing:-.01em}h1{font-size:clamp(1.85rem,4vw + .5rem,3rem)}h2{font-size:clamp(1.45rem,2.4vw + .5rem,2.1rem)}h3{font-size:clamp(1.15rem,1.2vw + .5rem,1.4rem)}p{margin:0 0 var(--space-4)}.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:var(--space-6)}.section{padding-block:clamp(var(--space-16),8vw,var(--space-24))}.section--tight{padding-block:var(--space-12)}.section--alt{background:var(--color-surface)}.section--dark{background:var(--color-primary);color:#cbd5e1}.section--dark h2,.section--dark h3{color:#fff}.eyebrow{display:inline-block;font-size:.82rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--color-accent);margin-bottom:var(--space-3)}.section-head{max-width:760px;margin-bottom:var(--space-12)}.section-head--center{margin-inline:auto;text-align:center}.lead{font-size:clamp(1.05rem,1.2vw + .6rem,1.25rem);color:var(--color-secondary)}.muted{color:var(--color-muted-fg)}.grid{display:grid;grid-gap:var(--space-6);gap:var(--space-6)}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}@media (max-width:960px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}@media (max-width:640px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);min-height:48px;padding:0 var(--space-6);border-radius:var(--radius);font-size:1rem;font-weight:600;cursor:pointer;border:1.5px solid transparent;transition:background var(--transition),transform var(--transition),box-shadow var(--transition),border-color var(--transition);text-align:center}.btn:active{transform:translateY(1px)}.btn-primary{background:var(--color-accent);color:#fff;box-shadow:var(--shadow-sm)}.btn-primary:hover{background:var(--color-accent-600);color:#fff;box-shadow:var(--shadow)}.btn-secondary{background:transparent;color:var(--color-primary);border-color:var(--color-border)}.btn-secondary:hover{border-color:var(--color-accent);color:var(--color-accent);background:var(--color-accent-50)}.btn-light{background:#fff;color:var(--color-primary)}.btn-light:hover{background:#fff;color:var(--color-accent)}.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}.btn-ghost-light:hover{color:#fff;border-color:#fff;background:rgba(255,255,255,.08)}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-8);box-shadow:var(--shadow-sm);transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);height:100%}.card--hover:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#cdd9e5}.card h3{margin-bottom:var(--space-3)}.card p{color:var(--color-secondary);margin-bottom:0}.card-icon{display:inline-flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:var(--radius);background:var(--color-accent-50);color:var(--color-accent);margin-bottom:var(--space-5)}.card-icon svg{width:26px;height:26px}.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:.8rem;font-weight:600;background:var(--color-accent-50);color:var(--color-accent);border:1px solid #d6e4f0}.stat-num{font-size:clamp(2rem,3vw + 1rem,2.8rem);font-weight:800;color:var(--color-primary);font-feature-settings:"tnum";font-variant-numeric:tabular-nums;line-height:1.1}.section--dark .stat-num{color:#fff}.stat-label{color:var(--color-muted-fg);font-size:.95rem}.tick-list{list-style:none;padding:0;margin:0;display:grid;grid-gap:var(--space-3);gap:var(--space-3)}.tick-list li{position:relative;padding-left:1.9rem;color:var(--color-secondary)}.tick-list li:before{content:"";position:absolute;left:0;top:.42em;width:1.1rem;height:1.1rem;background:var(--color-accent);-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='white'%3E%3Cpath fill-rule='evenodd' d='M16.7 5.3a1 1 0 010 1.4l-7.5 7.5a1 1 0 01-1.4 0L3.3 9.7a1 1 0 011.4-1.4l3.1 3.1 6.8-6.8a1 1 0 011.4 0z' clip-rule='evenodd'/%3E%3C/svg%3E") center /contain no-repeat;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='white'%3E%3Cpath fill-rule='evenodd' d='M16.7 5.3a1 1 0 010 1.4l-7.5 7.5a1 1 0 01-1.4 0L3.3 9.7a1 1 0 011.4-1.4l3.1 3.1 6.8-6.8a1 1 0 011.4 0z' clip-rule='evenodd'/%3E%3C/svg%3E") center /contain no-repeat}.site-header{position:-webkit-sticky;position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);-webkit-backdrop-filter:saturate(180%) blur(10px);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--color-border)}.site-header__inner{display:flex;align-items:center;justify-content:space-between;gap:var(--space-6);min-height:68px}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:1.2rem;letter-spacing:-.02em}.brand,.brand:hover{color:var(--color-primary)}.brand__mark{width:34px;height:34px;flex:none}.nav{display:flex;align-items:center;gap:var(--space-1)}.nav a{display:inline-block;padding:8px 14px;border-radius:var(--radius-sm);color:var(--color-secondary);font-weight:500;font-size:.97rem}.nav a:hover{color:var(--color-accent);background:var(--color-accent-50)}.header-cta{display:flex;align-items:center;gap:var(--space-3)}.mobile-menu,.nav-toggle{display:none}@media (max-width:1024px){.header-cta .btn,.nav{display:none}.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:#fff;cursor:pointer}.nav-toggle svg{width:24px;height:24px;color:var(--color-primary)}.mobile-menu{display:none;border-top:1px solid var(--color-border);background:#fff;padding:var(--space-4) 0}.nav-state:checked~.mobile-menu{display:block}.mobile-menu a{display:block;padding:12px var(--space-6);color:var(--color-secondary);font-weight:500;border-radius:var(--radius-sm)}.mobile-menu a:hover{background:var(--color-accent-50);color:var(--color-accent)}}.site-footer{background:var(--color-primary);color:#94a3b8;padding-block:var(--space-16) var(--space-8);font-size:.92rem}.site-footer h4{color:#fff;font-size:.98rem;margin-bottom:var(--space-4)}.site-footer a{color:#cbd5e1}.site-footer a:hover{color:#fff}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;grid-gap:var(--space-8);gap:var(--space-8);padding-bottom:var(--space-12);border-bottom:1px solid rgba(255,255,255,.1)}@media (max-width:860px){.footer-grid{grid-template-columns:1fr 1fr;gap:var(--space-8) var(--space-6)}}@media (max-width:480px){.footer-grid{grid-template-columns:1fr}}.footer-links{list-style:none;margin:0;padding:0;display:grid;grid-gap:var(--space-2);gap:var(--space-2)}.footer-bottom{gap:var(--space-3) var(--space-6);justify-content:space-between;padding-top:var(--space-6);font-size:.85rem;color:#64748b}.beian,.footer-bottom{display:flex;flex-wrap:wrap;align-items:center}.beian{gap:var(--space-2) var(--space-4)}.beian a{color:#94a3b8;display:inline-flex;align-items:center;gap:6px}.gongan-badge{width:16px;height:16px;display:inline-block;border-radius:3px;background:#475569;flex:none}.hero{position:relative;overflow:hidden;background:linear-gradient(160deg,#0f172a,#15294a 55%,#0b2447);color:#e2e8f0;padding-block:clamp(var(--space-20),12vw,7rem)}.hero:after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(56,130,200,.18) 1px,transparent 0);background-size:26px 26px;opacity:.5;pointer-events:none}.hero__inner{position:relative;max-width:820px}.hero h1{color:#fff}.hero .lead{color:#cbd5e1}.hero__actions{gap:var(--space-4)}.hero__actions,.hero__badges{display:flex;flex-wrap:wrap;margin-top:var(--space-8)}.hero__badges{gap:var(--space-2) var(--space-3)}.hero__badges .badge{background:rgba(255,255,255,.08);color:#cbd5e1;border-color:rgba(255,255,255,.16)}.prose{max-width:820px}.prose h2{margin-top:var(--space-12);padding-top:var(--space-2)}.prose h3{margin-top:var(--space-8)}.prose h3,.prose p{color:var(--color-secondary)}.prose p{font-size:1.02rem}.prose ul{padding-left:0;list-style:none;display:grid;grid-gap:var(--space-2);gap:var(--space-2);margin:0 0 var(--space-6)}.prose ul li{position:relative;padding-left:1.6rem;color:var(--color-secondary)}.prose ul li:before{content:"";position:absolute;left:.1rem;top:.65em;width:7px;height:7px;border-radius:2px;background:var(--color-accent)}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;grid-gap:var(--space-12);gap:var(--space-12);align-items:start}@media (max-width:1024px){.article-layout{grid-template-columns:1fr}}.toc{position:-webkit-sticky;position:sticky;top:92px;display:grid;grid-gap:var(--space-6);gap:var(--space-6)}@media (max-width:1024px){.toc{position:static}}.toc-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-6)}.toc-card h4{font-size:.95rem;margin-bottom:var(--space-4);color:var(--color-primary)}.toc-card ol{margin:0;padding-left:1.1rem;display:grid;grid-gap:var(--space-2);gap:var(--space-2);color:var(--color-secondary);font-size:.92rem}.faq-item{border:1px solid var(--color-border);border-radius:var(--radius);background:#fff;padding:var(--space-5) var(--space-6);margin-bottom:var(--space-4)}.faq-item h3{font-size:1.08rem;margin:0 0 var(--space-2);color:var(--color-primary)}.faq-item p{margin:0;color:var(--color-secondary)}.cta-band{background:linear-gradient(135deg,#0369a1,#0f172a);border-radius:var(--radius-xl);padding:clamp(var(--space-8),5vw,var(--space-16));text-align:center}.cta-band,.cta-band h2{color:#fff}.cta-band p{color:#dbeafe;max-width:620px;margin-inline:auto}.cta-band .hero__actions{justify-content:center}.breadcrumb{font-size:.88rem;margin-bottom:var(--space-6)}.breadcrumb,.breadcrumb a{color:var(--color-muted-fg)}.breadcrumb a:hover{color:var(--color-accent)}.field{display:grid;grid-gap:var(--space-2);gap:var(--space-2);margin-bottom:var(--space-5)}.field label{font-weight:600;font-size:.95rem;color:var(--color-primary)}.field .req{color:var(--color-destructive)}.field input,.field select,.field textarea{width:100%;min-height:48px;padding:var(--space-3) var(--space-4);border:1.5px solid var(--color-border);border-radius:var(--radius);font:inherit;font-size:1rem;color:var(--color-foreground);background:#fff;transition:border-color var(--transition),box-shadow var(--transition)}.field textarea{min-height:130px;resize:vertical}.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 3px rgba(3,105,161,.15)}.field .helper{font-size:.85rem;color:var(--color-muted-fg)}.field .error{font-size:.85rem;color:var(--color-destructive)}.form-note{font-size:.85rem;color:var(--color-muted-fg)}.form-success{border:1px solid #bbf7d0;background:#f0fdf4;color:var(--color-success);border-radius:var(--radius);padding:var(--space-4) var(--space-5);font-weight:600}.info-row{display:flex;gap:var(--space-4);align-items:flex-start;padding:var(--space-4) 0;border-bottom:1px solid var(--color-border)}.info-row:last-child{border-bottom:0}.info-row .card-icon{margin-bottom:0;width:44px;height:44px;flex:none}.info-row .card-icon svg{width:22px;height:22px}.map-placeholder{border:1px dashed var(--color-border);border-radius:var(--radius-lg);background:repeating-linear-gradient(45deg,#f1f5f9,#f1f5f9 12px,#e9eef5 0,#e9eef5 24px);min-height:260px;display:grid;place-items:center;color:var(--color-muted-fg);font-weight:600}.text-center{text-align:center}.mt-8{margin-top:var(--space-8)}.mt-12{margin-top:var(--space-12)}.flex-between{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4);flex-wrap:wrap}.skip-link{position:absolute;left:-9999px;top:0;background:var(--color-primary);color:#fff;padding:10px 16px;z-index:200;border-radius:0 0 var(--radius) 0}.skip-link:focus{left:0;color:#fff}