:root{--bg:#EEF0F8;--deep:#E0E4F2;--card:#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);--strong-border: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","PingFang SC",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.top-stack{position:fixed;z-index:40;left:0;right:0;top:0}.address-bar{height:22px;background:var(--dark);color:var(--white);display:flex;align-items:center;justify-content:space-between;padding:0 max(16px,calc((100vw - 1000px)/2));font-size:12px}.plain-trigger{border:0;background:transparent;color:var(--white);height:22px;min-width:44px;cursor:pointer}.window-bar{height:54px;background:var(--secondary);border-bottom:1px solid var(--strong-border);display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 max(16px,calc((100vw - 1000px)/2));gap:12px}.brand-link{justify-self:start;min-width:130px;min-height:44px;display:flex;align-items:center}.logo-img{height:24px;width:auto;object-fit:contain;object-position:center}.brand-text{font-size:16px;font-weight:700;color:var(--title)}.app-jump{justify-self:center;min-height:44px;padding:0 16px;border-radius:10px;display:flex;align-items:center;color:var(--purple);font-size:14px;font-weight:700}.drawer-trigger{justify-self:end;border:1px solid var(--strong-border);background:var(--card);color:var(--dark);border-radius:10px;height:44px;padding:0 16px;cursor:pointer;font-size:14px}.quick-tabs{height:42px;background:var(--card);display:flex;align-items:center;justify-content:center;gap:8px;padding:0 16px;border-bottom:1px solid var(--border);flex-wrap:wrap;overflow:hidden}.quick-tabs a{font-size:13px;padding:5px 14px;border:1px solid var(--border);border-radius:999px;line-height:1.2}.quick-tabs a.active{background:var(--purple);border-color:var(--purple);color:var(--white)}.site-main{padding:142px 16px 70px;max-width:1032px;margin:0 auto}.hero-window,.section-card,.long-panel,.statement,.policy-block,.help-block,.faq-item,.contact-card,.product-card,.compare-cell,.step-card,.memo-item,.tool-item,.path-item{background:var(--card);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:12px}.hero-window{padding:18px;margin-bottom:24px}.visual-slot{background:linear-gradient(145deg,var(--secondary),var(--card));border:1px solid var(--border);border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden}.visual-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.banner-slot{height:168px}.wide-slot{height:176px}.app-slot{height:300px}.icon-48{width:48px;height:48px;object-fit:contain}.eyebrow{font-size:13px;color:var(--purple);font-weight:700;letter-spacing:.04em}h1,h2,h3{color:var(--title);margin-top:0}h1{font-size:24px;line-height:1.3;margin:18px 0 12px}h2{font-size:20px;margin-bottom:10px}h3{font-size:16px;margin-bottom:6px}p{margin:0 0 12px}.lead{font-size:16px;color:var(--muted);max-width:820px}.btn-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.btn-primary,.btn-secondary{height:42px;display:inline-flex;align-items:center;justify-content:center;padding:0 18px;border-radius:10px;font-size:14px;white-space:nowrap;min-width:112px}.btn-primary{background:linear-gradient(135deg,#8AA4E0 0%,#5B4BDB 55%,#3A6BD4 100%);color:var(--white);border:1px solid transparent}.btn-secondary{background:var(--card);color:var(--dark);border:1px solid var(--strong-border)}.btn-primary:hover,.btn-secondary:hover,.drawer-trigger:hover,.app-jump:hover,.quick-tabs a:hover{transform:translateY(-1px)}a:focus-visible,button:focus-visible{outline:3px solid rgba(91,75,219,.3);outline-offset:2px}.content-section{margin:24px 0}.long-panel{padding:22px}.long-panel .visual-slot{margin-bottom:16px}.stair-list{display:flex;flex-direction:column;gap:12px}.step-card{padding:18px;width:calc(100% - 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