:root{--ink:#111827;--text:#4b5563;--muted:#6b7280;--line:#e5e7eb;--bg:#f9fafb;--card:#ffffff;--brand:#2563eb;--brand-dark:#1d4ed8;--brand-deep:#1e40af;--brand-soft:#eff6ff;--danger:#dc2626;--ok:#059669;--shadow:0 10px 30px rgba(15,23,42,0.06);--shadow-lg:0 18px 50px rgba(30,64,175,0.16);--radius:16px;--max:1200px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--text);background:var(--bg);font-family:Inter,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;line-height:1.7}a{color:inherit;text-decoration:none}img{max-width:100%}button,input,select,textarea{font:inherit}.wrap{width:min(var(--max),calc(100% - 40px));margin:0 auto}.site-header{position:-webkit-sticky;position:sticky;top:0;z-index:40;background:#fff;border-bottom:1px solid #f3f4f6;box-shadow:0 1px 2px rgba(15,23,42,.04)}.header-inner{gap:28px;min-height:76px}.brand,.header-inner{display:flex;align-items:center}.brand{gap:12px;min-width:220px;color:var(--ink)}.brand-mark{width:42px;height:42px;border-radius:12px;flex:none;display:grid;place-items:center;background:var(--brand);color:white;box-shadow:0 8px 16px rgba(37,99,235,.28)}.brand strong{display:block;font-size:16px;line-height:1.2}.brand small{display:block;color:var(--muted);font-size:12px;line-height:1.3;margin-top:2px}.nav{display:flex;align-items:center;gap:4px;margin-left:auto}.nav-item{position:relative}.nav-label{display:inline-flex;align-items:center;gap:4px;background:none;border:0;color:#374151;font-weight:500;padding:10px 12px;cursor:pointer;border-radius:8px}.nav-item:hover>.nav-label,.nav-label.active,.nav-label:hover{color:var(--brand)}.caret{font-size:10px;color:#9ca3af}.nav-drop{display:none;position:absolute;top:calc(100% - 4px);left:0;min-width:260px;background:white;border:1px solid var(--line);border-radius:12px;box-shadow:0 16px 40px rgba(15,23,42,.12);padding:8px;z-index:50}.nav-item.open .nav-drop,.nav-item:focus-within .nav-drop,.nav-item:hover .nav-drop{display:block}.nav-drop a{display:block;padding:8px 12px;border-radius:8px;color:#374151;font-size:14px;font-weight:400}.nav-drop a:hover{background:var(--brand-soft);color:var(--brand)}.nav-drop .drop-label{padding:8px 12px 4px;color:#9ca3af;font-size:12px}.header-actions{gap:14px}.header-actions,.phone-link{display:flex;align-items:center}.phone-link{gap:8px;color:var(--ink)}.phone-link small{display:block;color:var(--muted);font-size:12px;line-height:1.1}.phone-link strong{display:block;font-size:15px;letter-spacing:.01em}.phone-icon{width:36px;height:36px;border-radius:999px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center}.menu-toggle{display:none}.btn,.btn-dark,.btn-ghost,.btn-primary,.btn-white{display:inline-flex;align-items:center;justify-content:center;gap:6px;border-radius:12px;padding:12px 18px;border:1px solid transparent;cursor:pointer;font-weight:650;line-height:1.2}.btn-primary{background:var(--brand);color:white;box-shadow:0 8px 18px rgba(37,99,235,.25)}.btn-primary:hover{background:var(--brand-dark)}.btn-white{background:white;color:var(--ink)}.btn-white:hover{background:#f8fafc}.btn-dark{background:var(--ink);color:white}.btn-ghost{background:white;border-color:var(--line);color:#374151}.btn-ghost:hover{border-color:#bfdbfe;color:var(--brand)}.btn-block{width:100%}.btn[disabled],button:disabled{opacity:.45;cursor:not-allowed}.hero-band{background:linear-gradient(135deg,#1e40af,#3b82f6);color:white;padding:88px 0 72px;text-align:center}.hero-copy{max-width:980px}.hero-band h1{color:white;font-size:clamp(36px,4.6vw,58px);line-height:1.22;font-weight:800;margin:0 auto 18px;letter-spacing:-.03em}.hero-band .lead{color:rgba(255,255,255,.92);font-size:20px;margin:0 auto;max-width:820px}.chip-row{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:28px}.chip{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.12);color:white;border-radius:999px;padding:8px 16px;font-size:14px}.chip:hover{background:rgba(255,255,255,.2)}.hero-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:14px;margin-top:28px}.feature-row{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:16px;gap:16px;margin-top:48px}.feature-card{background:white;color:var(--ink);border-radius:20px;padding:26px 16px 22px;box-shadow:var(--shadow-lg)}.feature-card b,.price{display:block;color:var(--brand);font-size:28px;margin-bottom:6px}.feature-card span{color:var(--muted);font-size:14px}.section{padding:76px 0}.section.alt{background:white}.section.soft{background:linear-gradient(180deg,#fff 0,var(--bg) 100%)}.section-title{text-align:center;max-width:760px;margin:0 auto 36px}.page-intro h1,.section-title h2,h1{color:var(--ink);font-weight:800;letter-spacing:-.03em;line-height:1.25}.section-title h2{font-size:clamp(30px,3vw,40px);margin:0 0 10px;display:inline-block;position:relative}.section-title h2:after{content:"";position:absolute;left:62%;bottom:2px;width:72px;height:4px;background:var(--brand);border-radius:99px}.lead,.section-title p{color:var(--muted);font-size:17px}.eyebrow{color:var(--brand);font-weight:700;font-size:14px;letter-spacing:.02em}.section-title .eyebrow{display:block;margin-bottom:-6px}.grid-2,.grid-3,.grid-4{display:grid;grid-gap:18px;gap:18px}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.card{background:var(--card);border:1px solid #e8eef7;border-radius:20px;box-shadow:var(--shadow);padding:24px}.card p{color:var(--text)}.card h2,.card h3{color:var(--ink);margin:8px 0}.service-card{display:flex;flex-direction:column;min-height:100%;padding:28px 26px 22px}.service-icon{width:52px;height:52px;border-radius:14px;background:var(--brand);color:white;display:grid;place-items:center;margin-bottom:16px;box-shadow:0 10px 18px rgba(37,99,235,.28)}.tag{display:inline-flex;border-radius:999px;background:var(--brand-soft);color:var(--brand);padding:2px 10px;font-size:12px;font-weight:700}.tag.amber{background:#fff7ed;color:#c2410c}.check-list{list-style:none;padding:0;margin:14px 0 0}.check-list li{position:relative;padding-left:26px;margin:10px 0;color:#4b5563}.check-list li:before{content:"✓";position:absolute;left:0;color:var(--brand);font-weight:800}.card-actions{margin-top:auto;padding-top:16px}.text-link{color:var(--brand);font-weight:650}.text-link:hover{color:var(--brand-dark)}.more-services{margin-top:22px}.more-services summary{list-style:none;cursor:pointer;width:-moz-fit-content;width:fit-content;margin:0 auto;border:1px solid var(--line);background:white;border-radius:12px;padding:12px 18px;font-weight:650;color:#374151}.more-services summary::-webkit-details-marker{display:none}.more-grid{margin-top:16px}.more-grid a{display:block}.more-grid a:hover h3{color:var(--brand)}.case-card h3,.reason-card h3{font-size:20px}.case-card h3{min-height:56px}.quote{font-size:16px}.quote p{color:#374151}.person{display:flex;gap:10px;align-items:center;margin-top:16px}.avatar{width:42px;height:42px;border-radius:50%;background:var(--brand);color:white;display:grid;place-items:center;font-weight:700;flex:none}.fit-grid{display:grid;grid-template-columns:1.2fr .8fr;grid-gap:18px;gap:18px}.fit-yes{border-top:4px solid var(--brand)}.fit-no{border-top:4px solid #f59e0b}.fit-no li strong,.fit-yes li strong{color:var(--ink);display:block}.steps{counter-reset:step}.step{position:relative;padding-top:8px}.step-no{width:36px;height:36px;border-radius:999px;background:var(--brand);color:white;display:grid;place-items:center;font-weight:800;margin-bottom:12px}.faq details{background:white;border:1px solid var(--line);border-radius:14px;margin-bottom:12px}.faq summary{list-style:none;cursor:pointer;font-weight:700;color:var(--ink);padding:16px 18px;display:flex;justify-content:space-between;gap:12px}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";color:var(--brand);font-size:22px;line-height:1}.faq details[open] summary:after{content:"–"}.faq details p{margin:0;padding:0 18px 16px;color:var(--text)}.topic-card .badge-emoji{font-size:28px}.article-card{display:block;height:100%}.article-card:hover h3,.case-card:hover h3{color:var(--brand)}.contact-layout{display:grid;grid-template-columns:1.35fr .75fr;grid-gap:18px;gap:18px;align-items:start}.contact-side{display:grid;grid-gap:14px;gap:14px}.wechat-id{margin-top:8px;background:var(--brand-soft);color:var(--brand-deep);border-radius:14px;padding:18px;text-align:center;font-size:22px;font-weight:800}.contact-line{display:block;padding:12px 0;border-top:1px solid var(--line);color:var(--ink)}.contact-line small{display:block;color:var(--muted);font-weight:500}.note{background:#fff7ed;color:#9a3412;border-radius:12px;padding:10px 12px;font-size:14px}.form-grid{display:grid;grid-gap:14px;gap:14px}.form-row{display:grid;grid-template-columns:1fr 1fr;grid-gap:12px;gap:12px}label{display:grid;grid-gap:6px;gap:6px;font-size:14px;font-weight:650;color:#374151}input,select,textarea{width:100%;border:1px solid #d1d5db;background:white;border-radius:12px;padding:11px 12px;color:var(--ink)}input:focus,select:focus,textarea:focus{outline:2px solid #bfdbfe;border-color:var(--brand)}textarea{min-height:120px;resize:vertical}.field-error{color:var(--danger);font-weight:500}.page-intro{max-width:760px;margin-bottom:28px}.page-intro h1{font-size:clamp(32px,4vw,44px);margin:6px 0 10px}.kicker{color:var(--brand);font-weight:700}.site-footer{background:#111827;color:#d1d5db;padding:56px 0 18px}.site-footer a:hover{color:white}.footer-brand{display:flex;gap:12px;align-items:center;margin-bottom:12px}.footer-grid{display:grid;grid-template-columns:1.3fr repeat(4,1fr);grid-gap:22px;gap:22px}.site-footer h3,.site-footer h4{color:white;margin:0 0 12px;font-size:15px}.site-footer ul{list-style:none;padding:0;margin:0}.site-footer li{margin:7px 0}.legal{border-top:1px solid #1f2937;margin-top:28px;padding-top:14px;color:#9ca3af;font-size:13px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}.legal nav{display:flex;gap:14px}.prose h2,.prose h3,.prose h4{color:var(--ink);margin-top:1.4em}.prose li,.prose p{color:#374151}.prose a{color:var(--brand)}.crumbs{color:var(--muted);font-size:14px;margin-bottom:12px}.crumbs a{color:var(--brand)}.filters{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 18px}.choice,.filters button,.option{border:1px solid var(--line);background:white;border-radius:999px;padding:8px 14px;cursor:pointer;color:#374151}.choice.active,.filters button.active,.option.active{background:var(--brand);color:white;border-color:var(--brand)}.article-list{display:grid;grid-gap:12px;gap:12px}.article-item{display:block}.meta{color:var(--muted);font-size:13px}.layout-article{display:grid;grid-template-columns:240px 1fr;grid-gap:22px;gap:22px}.toc{position:-webkit-sticky;position:sticky;top:96px;align-self:start}.toc a{display:block;color:var(--muted);font-size:14px;margin:6px 0}.toc a:hover{color:var(--brand)}.wizard{max-width:760px}.progress{height:8px;background:#e5e7eb;border-radius:99px;overflow:hidden;margin:12px 0}.progress span{display:block;height:100%;background:var(--brand)}.result{background:var(--brand-soft);border-radius:18px;padding:18px;color:var(--ink)}.split{display:grid;grid-template-columns:1.15fr .85fr;grid-gap:18px;gap:18px}.inline-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px}.band{background:linear-gradient(135deg,#1e40af,#3b82f6);border-radius:24px;padding:28px}.band,.band a,.band p{color:white}.admin-body{background:#f3f5f8}.admin-shell{display:grid;grid-template-columns:230px 1fr;min-height:100vh}.side{background:#111827;color:#d1d5db;padding:18px 12px}.side a{display:block;padding:9px 12px;border-radius:10px;color:#d1d5db}.side a.active,.side a:hover{background:#1f2937;color:white}.admin-main{padding:22px}.table{width:100%;border-collapse:collapse;background:white;border-radius:14px;overflow:hidden}.table td,.table th{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}.table th{background:#f8fafc;font-size:13px;color:#374151}.notice{background:var(--brand-soft);border-radius:12px;padding:10px 12px;color:var(--brand-deep)}.danger{color:var(--danger);background:none;border:0;cursor:pointer;padding:0}.row-actions{display:flex;gap:10px;align-items:center}@media (max-width:980px){.nav,.phone-link{display:none}.menu-toggle{display:inline-flex}.header-inner{position:relative}.nav.open{display:flex;flex-direction:column;align-items:stretch;position:absolute;top:76px;left:0;right:0;background:white;padding:12px 16px 18px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);max-height:calc(100vh - 76px);overflow:auto}.nav-drop{position:static;display:none;box-shadow:none;border:0;padding:0 0 8px 8px;min-width:0}.nav-item.open .nav-drop{display:block}.admin-shell,.contact-layout,.feature-row,.fit-grid,.footer-grid,.form-row,.grid-2,.grid-3,.grid-4,.layout-article,.split{grid-template-columns:1fr}.side{display:flex;gap:6px;overflow:auto}.side a{white-space:nowrap}.hero-band{padding:56px 0 48px;text-align:left}.chip-row,.hero-actions{justify-content:flex-start}.section{padding:48px 0}}