:root{
    --bg:#EEF0F8;--bg-deep:#E0E4F2;--card:#F7F8FD;--sub:#EBEEF8;--title:#1A1840;--text:#2C2A48;--muted:#5A5680;--soft:#7A76A0;--purple:#5B4BDB;--blue:#3A6BD4;--deep:#1C1A3A;--mist:#8AA4E0;--lilac:#8A6AD4;--warm:#F7F8FD;--border:rgba(58,107,212,.18);--border-strong:rgba(91,75,219,.42);--shadow:0 12px 28px rgba(28,26,58,.08);--top-offset:118px;--content:1000px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth;overflow-x:hidden}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}body.is-locked{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.skip-link{position:fixed;left:16px;top:-60px;z-index:9999;background:var(--warm);color:var(--deep);padding:10px 14px;border-radius:10px}.skip-link:focus{top:12px}.site-top{position:fixed;inset:0 0 auto 0;z-index:80;box-shadow:0 4px 18px rgba(28,26,58,.07)}.address-bar{height:22px;background:var(--deep);color:var(--warm);display:flex;align-items:center;justify-content:space-between;padding:0 max(16px,calc((100vw - var(--content))/2));font-size:12px}.brand-mini{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.text-button{border:0;background:transparent;color:var(--warm);min-height:22px;padding:0 0 0 16px}.window-bar{height:54px;background:var(--bg-deep);border-bottom:1px solid var(--border-strong);display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:14px;padding:0 max(16px,calc((100vw - var(--content))/2))}.window-logo{justify-self:start;display:flex;align-items:center;min-height:44px;font-weight:700;color:var(--title);font-size:16px}.window-logo img,.footer-brand img,.drawer-brand img{height:24px;width:auto;max-width:160px;object-fit:contain;object-position:center}.app-entry{justify-self:center;min-height:44px;display:flex;align-items:center;padding:0 18px;border-radius:999px;color:var(--deep);border:1px solid var(--border-strong);background:rgba(247,248,253,.65);font-size:14px;font-weight:700}.drawer-button{justify-self:end;min-height:44px;padding:0 16px;border-radius:999px;border:1px solid var(--border-strong);background:var(--card);color:var(--deep);font-weight:700}.tab-nav{height:42px;background:var(--warm);display:flex;align-items:center;justify-content:center;gap:8px;padding:4px 16px;border-bottom:1px solid var(--border);overflow:hidden}.tab-nav a{display:inline-flex;align-items:center;justify-content:center;min-height:34px;padding:0 14px;border-radius:999px;color:var(--deep);font-size:13px;border:1px solid transparent;white-space:nowrap}.tab-nav a:hover,.tab-nav a:focus-visible{border-color:var(--border-strong)}.tab-nav a.is-current{background:var(--purple);color:var(--warm)}.site-main{min-height:70vh;padding-top:calc(var(--top-offset) + 30px);padding-bottom:60px}.section,.page-shell{width:min(var(--content),calc(100% - 32px));margin:0 auto}.section{margin-bottom:34px}.hero-window,.content-panel,.step-card,.tag-panel,.compare-panel,.center-card,.legal-block,.faq-item,.path-card,.memo-card,.tool-row,.help-block{background:var(--card);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow)}.hero-window{padding:24px}.eyebrow{display:inline-flex;align-items:center;min-height:30px;padding:0 10px;border-radius:999px;background:var(--sub);color:var(--deep);font-size:12px;font-weight:700;letter-spacing:.04em}.media-slot{display:flex;align-items:center;justify-content:center;overflow:hidden;background:var(--sub);border:1px solid var(--border);border-radius:12px;padding:10px}.media-slot img{display:block;max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;object-position:center}.media-banner{height:168px;margin-bottom:20px}.media-wide{height:176px;margin:18px 0}.media-product{height:320px;max-width:440px;margin:0 auto}.media-brand{height:220px;margin:18px auto;max-width:620px}.media-empty{height:140px;background:linear-gradient(135deg,var(--sub),var(--bg-deep));position:relative}.media-empty:after{content:"";width:34%;height:10px;border-radius:999px;background:rgba(91,75,219,.18);box-shadow:0 18px 0 rgba(58,107,212,.13),0 -18px 0 rgba(138,164,224,.22)}h1,h2,h3{color:var(--title);line-height:1.3;margin-top:0}h1{font-size:24px;margin-bottom:12px}h2{font-size:20px;margin-bottom:12px}h3{font-size:16px;margin-bottom:8px}p{margin:0 0 14px}.lead{font-size:16px;color:var(--muted);max-width:780px}.muted{color:var(--muted)}.soft{color:var(--soft)}.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 18px;border-radius:10px;font-size:14px;font-weight:700;border:1px solid var(--border-strong);transition:transform .18s ease,box-shadow .18s ease,background .18s ease}.button.primary{background:linear-gradient(135deg,#8AA4E0 0%,#5B4BDB 55%,#3A6BD4 100%);color:var(--warm);border-color:transparent}.button.secondary{background:var(--card);color:var(--deep)}.button:hover{transform:translateY(-1px);box-shadow:0 8px 18px rgba(28,26,58,.12)}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(91,75,219,.28);outline-offset:2px}.content-panel{padding:22px}.long-copy{max-width:820px}.step-stack{display:grid;gap:14px}.step-card{padding:18px;display:grid;grid-template-columns:150px 1fr;gap:18px;align-items:center}.step-card:nth-child(2){transform:translateX(24px)}.step-card .media-slot{height:110px}.tag-wrap{display:flex;flex-wrap:wrap;gap:10px;margin:14px 0}.tag-wrap a,.tag-wrap span{display:inline-flex;align-items:center;min-height:40px;padding:0 14px;border-radius:999px;background:var(--sub);border:1px solid var(--border);color:var(--deep);font-weight:700}.tag-wrap a:hover{border-color:var(--border-strong)}.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.compare-panel{padding:20px}.compare-panel .media-slot{height:160px;margin-bottom:14px}.center-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;max-width:760px;margin:0 auto}.center-card{text-align:center;padding:22px}.center-card .media-slot{height:150px;margin-bottom:16px}.product-card{max-width:720px;margin:0 auto;background:var(--card);border:1px solid var(--border-strong);border-radius:14px;box-shadow:var(--shadow);padding:24px;text-align:center}.product-icon{width:48px;height:48px;object-fit:contain;border-radius:12px;margin:0 auto 12px}.note-strip{padding:16px 18px;border-left:4px solid var(--purple);background:var(--sub);border-radius:0 12px 12px 0}.kicker-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.help-block,.tool-row,.memo-card,.path-card{padding:18px}.tool-list,.memo-list,.path-list{display:grid;gap:12px}.tool-row{display:grid;grid-template-columns:130px 1fr;gap:14px;align-items:start}.path-list{grid-template-columns:repeat(3,minmax(0,1fr))}.path-card strong{display:block;color:var(--title);font-size:16px;margin-bottom:8px}.legal-stack{display:grid;gap:14px}.legal-block{padding:20px}.legal-block p:last-child{margin-bottom:0}.faq-list{display:grid;gap:12px}.faq-item{padding:20px}.faq-item h2{font-size:17px}.faq-item p:last-child{margin-bottom:0}.page-head{margin-bottom:22px}.page-head .lead{max-width:760px}.site-footer{background:var(--deep);color:var(--warm);border-top:1px solid rgba(138,164,224,.32);padding:34px 0 calc(34px + env(safe-area-inset-bottom))}.footer-inner{width:min(var(--content),calc(100% - 32px));margin:0 auto}.footer-brand-link{display:inline-flex;align-items:center;gap:12px}.footer-brand-link span{display:flex;flex-direction:column;line-height:1.35}.footer-brand-link small{color:#D9DCF0;font-size:12px}.footer-groups{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin:26px 0}.footer-groups section{display:flex;flex-direction:column;gap:6px}.footer-groups h2{color:var(--warm);font-size:14px;margin:0 0 4px}.footer-groups a,.footer-note,.copyright{font-size:13px;color:#E6E8F2}.footer-groups a:hover{text-decoration:underline}.footer-note{max-width:820px}.copyright{margin-bottom:0;color:#C8CCE2}.site-overlay{position:fixed;inset:0;z-index:120;background:rgba(28,26,58,.38);opacity:0;pointer-events:none;transition:opacity .2s ease}.site-overlay.is-open{opacity:1;pointer-events:auto}.tool-drawer{position:fixed;right:18px;bottom:18px;z-index:140;width:360px;max-height:70vh;background:var(--card);border:1px solid var(--border-strong);border-radius:16px;box-shadow:0 24px 60px rgba(28,26,58,.24);visibility:hidden;pointer-events:none;opacity:0;transform:translateY(18px) scale(.98);transition:.2s ease}.tool-drawer.is-open{visibility:visible;pointer-events:auto;opacity:1;transform:none}.drawer-head{height:58px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;border-bottom:1px solid var(--border)}.drawer-brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--title)}.icon-button{min-height:40px;padding:0 12px;border:1px solid var(--border-strong);border-radius:10px;background:var(--warm);color:var(--deep)}.drawer-scroll{max-height:calc(70vh - 58px);overflow:auto;padding:14px}.drawer-group{margin-bottom:18px}.drawer-group:last-child{margin-bottom:0}.drawer-group h2{font-size:14px;margin-bottom:8px}.drawer-group a{display:block;padding:10px 12px;border-radius:10px}.drawer-group a:hover{background:var(--sub)}.drawer-group strong{display:block;color:var(--title);font-size:14px}.drawer-group span{display:block;color:var(--muted);font-size:12px;line-height:1.55}.search-layer{position:fixed;z-index:130;left:0;right:0;top:76px;visibility:hidden;pointer-events:none;opacity:0;transform:translateY(-10px);transition:.18s ease}.search-layer.is-open{visibility:visible;pointer-events:auto;opacity:1;transform:none}.search-card{width:min(720px,calc(100% - 32px));margin:0 auto;background:var(--bg-deep);border:1px solid var(--border-strong);border-radius:0 0 16px 16px;box-shadow:var(--shadow);padding:18px}.search-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:14px}.search-head strong{display:block;color:var(--title)}.search-head span{display:block;color:var(--muted);font-size:13px}.search-box{display:block;color:var(--deep);font-size:13px;font-weight:700}.search-box input{width:100%;margin-top:6px;min-height:44px;border:1px solid var(--border-strong);border-radius:10px;background:var(--warm);color:var(--deep);padding:0 12px}.search-presets{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.search-presets a{display:inline-flex;align-items:center;min-height:40px;padding:0 13px;border-radius:999px;background:var(--card);border:1px solid var(--border);color:var(--deep)}.mobile-bottom{display:none}.window-frame-demo{background:var(--deep);border-radius:14px;padding:10px;box-shadow:var(--shadow)}.window-frame-demo .frame-top{height:28px;border-radius:8px 8px 0 0;background:#302D59;display:flex;align-items:center;gap:6px;padding:0 10px}.window-frame-demo .frame-top i{width:7px;height:7px;border-radius:50%;background:var(--mist)}.window-frame-demo .frame-body{background:var(--warm);padding:14px;border-radius:0 0 8px 8px}.window-frame-demo .media-slot{margin:0}.mini-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.mini-item{background:var(--sub);border:1px solid var(--border);border-radius:12px;padding:14px}.mini-item strong{display:block;color:var(--title);margin-bottom:6px}.two-col-text{columns:2;column-gap:32px}.two-col-text p{break-inside:avoid}.contact-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.contact-card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:20px}.contact-card h2{font-size:17px}.contact-card p:last-child{margin-bottom:0}.text-center{text-align:center}.lead-center{margin-left:auto;margin-right:auto}.actions-center{justify-content:center}
@media (max-width:760px){:root{--top-offset:76px}.tab-nav{display:none}.site-main{padding-top:calc(var(--top-offset) + 22px);padding-bottom:84px}.address-bar{padding-left:16px;padding-right:16px}.window-bar{padding:0 12px;gap:8px}.window-logo{min-width:0;max-width:38vw}.window-logo span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.window-logo img{max-width:34vw}.app-entry,.drawer-button{padding:0 12px;font-size:13px}.hero-window,.content-panel,.product-card{padding:18px}.step-card{grid-template-columns:1fr}.step-card:nth-child(2){transform:none}.compare-grid,.center-grid,.kicker-grid,.footer-groups,.contact-grid{grid-template-columns:1fr}.tool-row{grid-template-columns:1fr;gap:6px}.path-list{grid-template-columns:1fr}.two-col-text{columns:1}.tool-drawer{right:4%;bottom:calc(62px + env(safe-area-inset-bottom));width:92%;max-height:70vh}.search-layer{inset:0;top:0;background:var(--deep)}.search-card{width:100%;height:100%;border:0;border-radius:0;margin:0;background:var(--deep);color:var(--warm);padding:24px 16px}.search-head strong,.search-head span,.search-box{color:var(--warm)}.search-presets a{background:#2A2750;color:var(--warm);border-color:rgba(138,164,224,.28)}.mobile-bottom{position:fixed;z-index:90;left:0;right:0;bottom:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(4,1fr);background:var(--card);border-top:1px solid var(--border-strong);box-shadow:0 -8px 20px rgba(28,26,58,.08)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;font-size:13px;min-height:48px;color:var(--deep)}.mobile-bottom a.is-current{background:var(--purple);color:var(--warm)}.site-overlay{z-index:100}.site-footer{padding-bottom:calc(80px + env(safe-area-inset-bottom))}.media-product{height:280px}.mini-list{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}