:root{--bg:#EEF0F8;--deep:#E0E4F2;--content:#F7F8FD;--secondary:#EBEEF8;--title:#1A1840;--text:#2C2A48;--muted:#5A5680;--soft:#7A76A0;--purple:#5B4BDB;--blue:#3A6BD4;--dark:#1C1A3A;--mist:#8AA4E0;--lilac:#8A6AD4;--white:#F7F8FD;--border:rgba(58,107,212,.18);--border-strong:rgba(91,75,219,.42);--shadow:0 12px 28px rgba(28,26,58,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}a{color:inherit;text-decoration:none}button{font:inherit}img{max-width:100%;display:block}.skip-link{position:fixed;left:12px;top:-60px;z-index:9999;background:var(--white);padding:8px 12px;border-radius:8px}.skip-link:focus{top:8px}.address-bar{position:fixed;z-index:1000;top:0;left:0;right:0;height:22px;background:var(--dark);color:#EEF0F8;display:flex;align-items:center;justify-content:space-between;padding:0 16px;font-size:12px}.address-brand{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.address-search{border:0;background:transparent;color:#EEF0F8;cursor:pointer;min-height:22px;padding:0 4px}.window-header{position:fixed;z-index:999;top:22px;left:0;right:0;height:54px;background:#EBEEF8;border-bottom:1px solid var(--border-strong);display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 max(16px,calc((100vw - 1000px)/2))}.brand-mark{justify-self:start;display:flex;align-items:center;min-height:44px;font-size:16px;font-weight:800;color:var(--title)}.brand-mark img,.drawer-brand img,.footer-brand img{height:24px;width:auto;object-fit:contain}.app-link{justify-self:center;min-height:44px;display:flex;align-items:center;font-size:14px;color:var(--purple);font-weight:700}.drawer-button{justify-self:end;min-width:74px;height:40px;border:1px solid var(--border-strong);border-radius:10px;background:var(--content);color:var(--title);cursor:pointer}.tab-strip{position:fixed;z-index:998;top:76px;left:0;right:0;min-height:42px;background:var(--content);display:flex;justify-content:center;align-items:center;gap:8px;padding:6px 16px;border-bottom:1px solid var(--border);flex-wrap:wrap}.tab-strip a{font-size:13px;padding:6px 14px;border-radius:999px;border:1px solid var(--border);background:#fff;min-height:30px;display:flex;align-items:center}.tab-strip a.active{background:var(--purple);color:#fff;border-color:var(--purple)}.site-main{max-width:1000px;margin:0 auto;padding:146px 16px 70px}.page-title{margin:0 0 10px;font-size:24px;line-height:1.3;color:var(--title)}h2{font-size:20px;line-height:1.4;color:var(--title);margin:0 0 12px}h3{font-size:16px;line-height:1.45;color:var(--title);margin:0 0 8px}p{margin:0 0 14px}.lead{font-size:16px;color:var(--muted)}.eyebrow{font-size:12px;letter-spacing:.12em;color:var(--purple);font-weight:800;margin-bottom:8px}.section{margin:0 0 28px;padding:24px;background:var(--content);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow)}.section-soft{background:var(--secondary)}.section-dark{background:var(--dark);color:#F7F8FD}.section-dark h1,.section-dark h2,.section-dark h3{color:#F7F8FD}.media-slot{background:linear-gradient(145deg,#EBEEF8,#F7F8FD);border:1px solid var(--border);border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden;padding:10px}.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.media-empty{min-height:92px}.slot-banner{height:168px}.slot-wide{height:176px}.slot-app{height:320px}.slot-small{height:150px}.btn-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.btn{height:42px;padding:0 18px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;min-width:116px}.btn-primary{color:#F7F8FD;background:linear-gradient(135deg,#8AA4E0 0%,#5B4BDB 55%,#3A6BD4 100%)}.btn-secondary{background:#F7F8FD;color:var(--dark);border:1px solid var(--border-strong)}a:focus-visible,button:focus-visible{outline:3px solid rgba(91,75,219,.35);outline-offset:2px}.btn:hover,.tab-strip a:hover,.footer-columns a:hover,.drawer-scroll a:hover{transform:translateY(-1px)}.window-demo{padding:10px;border:1px solid var(--border-strong);border-radius:14px;background:var(--deep);margin-bottom:18px}.window-demo-head{height:26px;background:var(--dark);border-radius:8px 8px 0 0;display:flex;gap:6px;align-items:center;padding:0 9px}.window-demo-head i{display:block;width:7px;height:7px;border-radius:50%;background:#EEF0F8;opacity:.75}.window-demo-body{background:var(--content);padding:12px;border-radius:0 0 8px 8px}.step-stack{display:grid;gap:12px}.step-card{background:var(--content);border:1px solid var(--border);border-radius:12px;padding:18px;max-width:860px}.step-card:nth-child(2){margin-left:24px}.tag-wrap{display:flex;flex-wrap:wrap;gap:10px;margin:14px 0}.tag-wrap span,.tag-wrap a{padding:8px 13px;background:#E0E4F2;border:1px solid var(--border-strong);border-radius:999px;color:var(--dark)}.compare{display:grid;grid-template-columns:1fr 1fr;gap:16px}.compare>article{background:var(--content);border:1px solid var(--border);border-radius:14px;padding:20px}.path-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.path-row span{padding:8px 14px;border-radius:10px;background:#E0E4F2;border:1px solid var(--border);color:var(--dark)}.path-row b{color:var(--purple)}.center-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;max-width:760px;margin:0 auto}.center-cards article{padding:20px;text-align:center;border:1px solid var(--border);border-radius:14px;background:var(--content)}.product-card{max-width:720px;margin:0 auto;text-align:center;background:var(--content);border:1px solid var(--border-strong);border-radius:14px;padding:24px;box-shadow:var(--shadow)}.icon-spot{width:64px;height:64px;margin:0 auto 12px;padding:8px;border-radius:14px;background:var(--secondary);display:flex;align-items:center;justify-content:center}.icon-spot img{width:48px;height:48px;object-fit:contain}.fact-list,.tool-list,.memo-list{display:grid;gap:10px}.fact-list article,.tool-list article,.memo-list article{padding:16px;border:1px solid var(--border);background:var(--content);border-radius:12px}.tool-list{grid-template-columns:repeat(2,minmax(0,1fr))}.memo-list article:nth-child(even){background:var(--secondary)}.clauses{display:grid;gap:16px}.clauses section{padding:20px;border-left:4px solid var(--purple);background:var(--content);border-radius:0 12px 12px 0}.faq-list{display:grid;gap:12px}.faq-item{background:var(--content);border:1px solid var(--border);border-radius:12px;padding:18px}.faq-item h2{font-size:16px}.plain-list{padding-left:20px}.plain-list li{margin:8px 0}.home-intro{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:18px;align-items:center}.home-long{padding:26px}.home-long .media-slot{margin:14px 0}.home-duo{display:grid;grid-template-columns:1fr 1fr;gap:16px}.home-app{display:grid;grid-template-columns:260px 1fr;gap:22px;align-items:center}.brand-block{padding:28px;border-radius:14px;background:linear-gradient(145deg,#E0E4F2,#F7F8FD);border:1px solid var(--border)}.notice-box{padding:16px 18px;border-radius:12px;background:#E0E4F2;color:var(--dark);border:1px solid var(--border)}.site-footer{background:var(--dark);color:#EEF0F8;border-top:1px solid var(--mist);font-size:13px;padding:34px 16px 72px}.footer-inner{max-width:1000px;margin:0 auto}.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:22px}.footer-brand div{display:flex;flex-direction:column}.footer-brand strong{font-size:16px}.footer-brand span{color:#c7d4f1}.footer-columns{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}.footer-columns h2{font-size:14px;color:#EEF0F8;margin-bottom:8px}.footer-columns a{display:block;color:#d8def1;margin:5px 0}.footer-note{margin-top:22px;color:#c8cce0}.copyright{color:#aeb4cf}.overlay{position:fixed;inset:0;background:rgba(28,26,58,.38);z-index:1190;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.overlay.open{opacity:1;visibility:visible;pointer-events:auto}.tool-drawer{position:fixed;z-index:1200;right:18px;bottom:18px;width:360px;max-height:70vh;background:var(--content);border:1px solid var(--border-strong);border-radius:16px;box-shadow:0 24px 60px rgba(28,26,58,.25);transform:translateY(24px);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.tool-drawer.open{transform:none;opacity:1;visibility:visible;pointer-events:auto}.drawer-head{height:58px;display:flex;align-items:center;justify-content:space-between;padding:0 14px;border-bottom:1px solid var(--border)}.drawer-brand{display:flex;align-items:center;gap:10px}.drawer-head button,.search-top button{height:36px;border:1px solid var(--border-strong);background:#fff;border-radius:9px;color:var(--dark);cursor:pointer}.drawer-scroll{overflow:auto;max-height:calc(70vh - 58px);padding:12px}.drawer-scroll section{margin-bottom:12px}.drawer-scroll h2{font-size:14px;margin:4px 0 7px}.drawer-scroll a{display:grid;grid-template-columns:92px 1fr;gap:8px;padding:9px;border-radius:9px}.drawer-scroll a:hover{background:var(--secondary)}.drawer-scroll span{font-weight:700;color:var(--title)}.drawer-scroll small{color:var(--muted);font-size:12px}.search-layer{position:fixed;z-index:1210;top:76px;left:0;right:0;visibility:hidden;pointer-events:none;opacity:0;transition:.2s}.search-layer.open{visibility:visible;pointer-events:auto;opacity:1}.search-card{max-width:800px;margin:10px auto;padding:20px;background:var(--secondary);border:1px solid var(--border-strong);border-radius:14px;box-shadow:var(--shadow)}.search-top{display:flex;align-items:center;justify-content:space-between}.search-presets{display:flex;flex-wrap:wrap;gap:10px}.search-presets a{padding:9px 14px;border-radius:999px;background:#fff;border:1px solid var(--border);color:var(--dark)}.ui-locked{overflow:hidden}.mobile-bottom{display:none}.compact-hero{padding:24px 26px;border-radius:14px;background:var(--secondary);border:1px solid var(--border);margin-bottom:20px}.split-lines{display:grid;grid-template-columns:1fr 1fr;gap:18px}.split-lines>div{padding:18px;border-top:3px solid var(--blue);background:var(--content);border-radius:10px}.center-note{text-align:center;max-width:780px;margin:0 auto 24px}.route-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.route-grid article{padding:18px;background:var(--content);border:1px solid var(--border);border-radius:12px}.about-hero{display:grid;gap:16px}.about-hero .media-slot{height:220px}.contact-band{padding:22px;background:var(--dark);color:#F7F8FD;border-radius:14px}.contact-band h2{color:#F7F8FD}.install-flow{counter-reset:flow;display:grid;gap:12px}.install-flow article{position:relative;padding:18px 18px 18px 62px;background:var(--content);border:1px solid var(--border);border-radius:12px}.install-flow article:before{counter-increment:flow;content:counter(flow);position:absolute;left:18px;top:18px;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:var(--purple);color:#fff;font-weight:800}
@media (max-width:760px){.window-header{padding:0 16px;grid-template-columns:1fr auto auto;gap:8px}.brand-mark img{max-width:128px}.tab-strip{display:none}.site-main{padding:98px 16px 88px}.address-bar{padding:0 12px}.section{padding:18px}.home-intro,.home-duo,.compare,.home-app,.split-lines{grid-template-columns:1fr}.home-app{gap:14px}.home-app .media-slot{max-width:300px;margin:0 auto}.step-card:nth-child(2){margin-left:0}.center-cards,.tool-list,.route-grid{grid-template-columns:1fr}.footer-columns{grid-template-columns:1fr 1fr}.tool-drawer{right:4%;bottom:58px;width:92%;max-height:78vh}.drawer-scroll{max-height:calc(78vh - 58px)}.search-layer{top:0;bottom:0;background:var(--dark);color:#F7F8FD}.search-card{margin:0;max-width:none;height:100%;border:0;border-radius:0;background:var(--dark);color:#F7F8FD;padding:84px 18px 24px}.search-card h2{color:#F7F8FD}.search-presets a{background:#EBEEF8}.mobile-bottom{position:fixed;z-index:1100;display:grid;grid-template-columns:repeat(4,1fr);left:0;right:0;bottom:0;min-height:48px;padding-bottom:env(safe-area-inset-bottom);background:var(--content);border-top:1px solid var(--border-strong)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;font-size:13px;min-height:48px}.mobile-bottom a.active{background:var(--purple);color:#fff}.site-footer{padding-bottom:92px}.slot-app{height:280px}.home-intro{align-items:stretch}.footer-columns{gap:14px}.drawer-scroll a{grid-template-columns:84px 1fr}}
@media (max-width:420px){.footer-columns{grid-template-columns:1fr}.app-link{font-size:13px}.drawer-button{min-width:66px}.home-intro .section{padding:16px}.slot-banner{height:150px}.slot-wide{height:160px}}

.space-top{margin-top:18px}