:root{
  --bg:#EEF0F8;--deep:#E0E4F2;--content:#F7F8FD;--sub:#EBEEF8;--title:#1A1840;--text:#2C2A48;--muted:#5A5680;--soft:#7A76A0;--purple:#5B4BDB;--blue:#3A6BD4;--dark:#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)
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}body.overlay-open{overflow:hidden}a{color:inherit;text-decoration:none}button{font:inherit}.shell{width:min(1000px,calc(100% - 32px));margin:0 auto}.top-address{position:fixed;z-index:80;top:0;left:0;right:0;height:22px;background:var(--dark);color:#F7F8FD;font-size:12px}.top-address-inner{height:22px;display:flex;align-items:center;justify-content:space-between;gap:12px}.plain-trigger,.drawer-trigger,.icon-button{border:0;cursor:pointer}.plain-trigger{background:transparent;color:#F7F8FD;min-width:44px;height:22px;padding:0 8px}.window-header{position:fixed;z-index:79;top:22px;left:0;right:0;height:54px;background:var(--deep);border-bottom:1px solid var(--border-strong)}.window-header-inner{height:54px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px}.brand-link{justify-self:start;display:inline-flex;align-items:center;min-height:44px}.brand-logo{display:block;max-width:170px;height:24px;object-fit:contain;object-position:center}.brand-fallback{font-size:16px;font-weight:700;color:var(--title)}.app-link{justify-self:center;display:inline-flex;align-items:center;min-height:44px;padding:0 16px;border-radius:999px;border:1px solid var(--border-strong);color:var(--dark);background:var(--warm);font-size:14px}.drawer-trigger{justify-self:end;min-height:44px;padding:0 16px;border-radius:10px;background:linear-gradient(135deg,#8AA4E0 0%,#5B4BDB 55%,#3A6BD4 100%);color:#F7F8FD}.section-tabs{position:fixed;z-index:78;top:76px;left:0;right:0;min-height:42px;background:var(--warm);border-bottom:1px solid var(--border)}.section-tabs-inner{min-height:42px;display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;padding:4px 0}.section-tabs a{font-size:13px;display:inline-flex;align-items:center;min-height:32px;padding:0 14px;border:1px solid var(--border);border-radius:999px;color:var(--dark);background:#fff}.section-tabs a.active{background:var(--purple);color:#fff;border-color:var(--purple)}.site-main{padding-top:138px;padding-bottom:40px}.hero-section,.content-section{padding:30px 0}.content-section.tight{padding-top:14px}.surface{background:var(--content);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow)}.lead-card{padding:24px}.eyebrow{font-size:13px;color:var(--purple);font-weight:700;letter-spacing:.04em}.hero-section h1,.page-head h1{font-size:24px;line-height:1.3;color:var(--title);margin:8px 0 12px}.content-section h2,.surface h2,.page-copy h2{font-size:20px;line-height:1.4;color:var(--title);margin:0 0 12px}.content-section h3,.surface h3,.page-copy h3{font-size:16px;color:var(--title);margin:0 0 8px}p{margin:0 0 14px}.muted{color:var(--muted)}.media-slot{background:linear-gradient(180deg,#F7F8FD,#EBEEF8);border:1px solid var(--border);border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden}.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.slot-168{height:168px}.slot-176{height:176px}.slot-240{height:240px}.slot-320{height:320px;max-height:320px}.lead-stack{display:grid;gap:18px}.button-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.primary-btn,.secondary-btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 18px;border-radius:10px;font-size:14px;font-weight:700}.primary-btn{background:linear-gradient(135deg,#8AA4E0 0%,#5B4BDB 55%,#3A6BD4 100%);color:#F7F8FD}.secondary-btn{background:var(--warm);color:var(--dark);border:1px solid var(--border-strong)}a:hover{filter:brightness(.98)}a:focus-visible,button:focus-visible{outline:3px solid rgba(91,75,219,.28);outline-offset:2px}.long-copy{max-width:820px}.stair-list{display:grid;gap:14px;max-width:820px}.stair-card{padding:20px;background:var(--content);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow)}.stair-card.offset{margin-left:24px}.tag-wrap{display:flex;gap:10px;flex-wrap:wrap;margin:16px 0}.tag-wrap span,.tag-wrap a{display:inline-flex;align-items:center;min-height:36px;padding:0 14px;border-radius:999px;background:var(--deep);color:var(--dark);border:1px solid var(--border)}.split-compare{display:grid;grid-template-columns:1fr 1fr;gap:18px}.split-compare>.surface{padding:20px}.path-rail{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:18px 0}.path-rail span{display:inline-flex;align-items:center;min-height:40px;padding:0 16px;border-radius:10px;background:var(--deep);border:1px solid var(--border);color:var(--dark);font-weight:700}.path-rail i{font-style:normal;color:var(--soft)}.center-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;max-width:760px;margin:0 auto}.center-cards .surface{padding:22px;text-align:center}.product-card{max-width:760px;margin:0 auto;padding:24px;text-align:center}.product-icon{width:48px;height:48px;object-fit:contain;display:block;margin:0 auto 10px}.product-card .slot-320{max-width:420px;margin:0 auto 18px}.notes-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.notes-grid .surface{padding:20px}.faq-list{display:grid;gap:14px}.faq-item{padding:20px;background:var(--content);border:1px solid var(--border);border-radius:12px}.faq-item h2{font-size:17px}.page-head{padding:30px 0 16px}.page-head .surface{padding:22px}.page-copy{display:grid;gap:16px}.page-copy>.surface{padding:22px}.window-demo{border:1px solid var(--border-strong);border-radius:14px;background:var(--content);overflow:hidden;box-shadow:var(--shadow)}.window-demo-bar{height:34px;background:var(--deep);border-bottom:1px solid var(--border);display:flex;align-items:center;gap:7px;padding:0 12px}.window-demo-bar i{width:8px;height:8px;border-radius:50%;background:var(--lilac)}.window-demo-body{padding:22px}.tool-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.tool-item{padding:18px;border:1px solid var(--border);border-radius:12px;background:var(--content)}.term-sections{display:grid;gap:16px}.term-sections section{padding:20px;background:var(--content);border:1px solid var(--border);border-radius:12px}.brand-statement{padding:24px;background:linear-gradient(135deg,#1C1A3A,#2A2854);color:#F7F8FD;border-radius:14px}.brand-statement h1,.brand-statement h2,.brand-statement h3{color:#fff}.site-footer{background:var(--dark);color:#EEF0F8;border-top:1px solid var(--mist);padding:30px 0 24px}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:20px}.footer-grid h2{font-size:14px;margin:0 0 10px;color:#fff}.footer-grid a{display:block;font-size:13px;color:#EEF0F8;padding:3px 0}.footer-brand{display:flex;flex-direction:column;gap:6px;font-size:13px}.footer-note{border-top:1px solid rgba(138,164,224,.25);margin-top:22px;padding-top:18px;font-size:13px;color:#DDE2F5}.footer-note p:last-child{margin-bottom:0}.page-mask{position:fixed;z-index:90;inset:0;background:rgba(28,26,58,.38);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.page-mask.open{opacity:1;visibility:visible;pointer-events:auto}.tool-drawer{position:fixed;z-index:100;right:18px;bottom:18px;width:min(360px,calc(100% - 32px));max-height:70vh;overflow:auto;background:var(--content);border:1px solid var(--border-strong);border-radius:14px;box-shadow:0 22px 54px rgba(28,26,58,.2);transform:translateY(18px) scale(.98);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.tool-drawer.open{transform:none;opacity:1;visibility:visible;pointer-events:auto}.drawer-head{position:sticky;top:0;background:var(--content);display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border-bottom:1px solid var(--border)}.drawer-brand{display:flex;align-items:center;gap:10px}.icon-button{min-height:40px;padding:0 12px;border-radius:9px;background:var(--deep);color:var(--dark)}.drawer-groups{padding:12px}.drawer-groups section{padding:8px 0}.drawer-groups h2{font-size:14px;margin:0 0 8px;color:var(--purple)}.drawer-groups a{display:grid;grid-template-columns:90px 1fr;gap:10px;padding:10px;border-radius:10px}.drawer-groups a:hover{background:var(--sub)}.drawer-groups b{font-size:14px;color:var(--title)}.drawer-groups span{font-size:12px;color:var(--muted)}.search-layer{position:fixed;z-index:99;left:0;right:0;top:76px;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.search-layer.open{opacity:1;visibility:visible;pointer-events:auto}.search-card{width:min(760px,calc(100% - 32px));margin:0 auto;background:var(--deep);border:1px solid var(--border-strong);border-radius:0 0 14px 14px;box-shadow:var(--shadow);padding:18px}.search-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.search-head strong{font-size:18px;color:var(--title)}.search-head p{color:var(--muted);margin:2px 0 0}.search-presets{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}.search-presets a{display:inline-flex;align-items:center;min-height:40px;padding:0 14px;background:var(--warm);border:1px solid var(--border);border-radius:999px;color:var(--dark)}.mobile-bottom{display:none}.dense-list{padding-left:20px;margin:10px 0 0}.dense-list li{margin-bottom:8px}.notice{padding:16px 18px;border-left:4px solid var(--purple);background:var(--sub);border-radius:10px}.quote-panel{padding:20px;background:var(--deep);border-radius:12px;color:var(--dark)}
@media (max-width:760px){
  .section-tabs{display:none}.site-main{padding-top:92px;padding-bottom:74px}.window-header-inner{grid-template-columns:1fr auto auto;gap:8px}.app-link,.drawer-trigger{padding:0 12px}.brand-logo{max-width:120px}.split-compare,.center-cards,.notes-grid,.tool-list,.footer-grid{grid-template-columns:1fr}.stair-card.offset{margin-left:0}.hero-section,.content-section{padding:22px 0}.slot-240{height:210px}.product-card{padding:18px}.tool-drawer{right:4%;bottom:62px;width:92%;max-height:70vh}.search-layer{top:0;bottom:0;background:var(--dark);padding:22px 0;overflow:auto}.search-card{width:calc(100% - 32px);margin:0 auto;background:var(--dark);color:#F7F8FD;border-radius:14px}.search-head strong,.search-head p{color:#F7F8FD}.search-layer .icon-button{background:#F7F8FD}.search-presets a{background:#F7F8FD}.mobile-bottom{position:fixed;z-index:85;left:0;right:0;bottom:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--warm);border-top:1px solid var(--border);display:grid;grid-template-columns:repeat(4,1fr)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:48px;font-size:13px}.mobile-bottom a.active{background:var(--purple);color:#fff}.site-footer{padding-bottom:76px}.footer-grid{gap:14px}.footer-brand{padding-bottom:6px}.page-head{padding-top:24px}.lead-card{padding:18px}.drawer-groups a{grid-template-columns:78px 1fr}
}