:root{color-scheme:light;--bg:#fff;--panel:#f8f9fb;--text:#232326;--muted:#77767a;--line:#e5e7eb;--red:#e60012;--accent:#fff1f2;--shadow:0 18px 70px #30252006}
:root[data-theme=dark]{color-scheme:dark;--bg:#111113;--panel:#19191c;--text:#f1efeb;--muted:#aaa7ac;--line:#303035;--red:#ff6b76;--accent:#341b20;--shadow:0 18px 70px #0002}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,'Segoe UI','Microsoft YaHei',sans-serif;line-height:1.7}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}a:focus-visible,button:focus-visible{outline:2px solid var(--red);outline-offset:5px}.shell{width:min(1200px,calc(100% - 100px));margin:auto}.header{height:108px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:20px}.brand{display:flex;align-items:center;gap:12px;font-size:20px;font-weight:650}.brand img{object-fit:contain}.brand small{display:block;font-size:8px;letter-spacing:2.6px;font-weight:500;color:var(--muted)}nav{display:flex;gap:32px;align-items:center;font-size:13px}nav a:hover,.text-link:hover{color:var(--red)}.theme-toggle{border:1px solid var(--line);padding:9px 16px;border-radius:30px;background:var(--bg);color:var(--text);font-size:12px;white-space:nowrap}.hero{padding-top:94px;padding-bottom:85px;position:relative;overflow:hidden}.eyebrow{font-size:11px;letter-spacing:2px;color:var(--muted);display:flex;gap:12px;align-items:center}.eyebrow>span{width:6px;height:6px;background:var(--red);border-radius:50%}.hero h1{font-size:clamp(40px,4.9vw,66px);font-weight:550;letter-spacing:-2px;line-height:1.4;margin:24px 0}.hero h1>span{color:var(--red)}.hero p{font-size:15px;line-height:2;color:var(--muted)}.hero-link{display:inline-flex;gap:40px;font-size:13px;margin-top:25px;border-bottom:1px solid var(--line);padding-bottom:8px}.hero-link span{color:var(--red)}.hero-mark{position:absolute;right:50px;top:105px;width:260px;display:grid;justify-items:center;gap:20px;transform:rotate(-8deg)}.hero-mark img{width:240px;height:240px;object-fit:contain;filter:drop-shadow(0 22px 30px #e6001215)}.hero-mark span{font-size:10px;letter-spacing:9px;color:var(--muted)}.section-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px;color:var(--muted);font-size:12px;letter-spacing:1px}.section-head p{letter-spacing:0}.product-grid{display:grid;grid-template-columns:1fr 1fr;gap:25px}.product{padding:32px 38px;background:var(--panel);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);display:flex;flex-direction:column;align-items:flex-start}.product-top{display:flex;justify-content:space-between;align-items:center;gap:15px;width:100%}.number{font-size:10px;letter-spacing:1.4px;color:var(--muted)}.badge{font-size:10px;padding:4px 10px;border:1px solid var(--line);border-radius:20px;color:var(--muted)}.product-icon{background:var(--accent);color:var(--red);width:52px;height:52px;border-radius:14px;display:grid;place-items:center;font-size:30px;margin-top:35px}.product h2{font-size:30px;font-weight:600;letter-spacing:1px;margin:20px 0 6px}.subtitle{font-size:16px;margin:0 0 16px}.description{font-size:13px;color:var(--muted);line-height:1.9;margin:0;max-width:390px}.features{display:flex;flex-wrap:wrap;gap:18px;font-size:11px;color:var(--muted);margin:24px 0 32px}.features span:before{content:'·';color:var(--red);margin-right:6px}.product-actions{display:flex;align-items:center;gap:25px;margin-top:auto;width:100%}.button{background:#e60012;color:#fff;display:inline-flex;justify-content:space-between;align-items:center;gap:34px;padding:12px 18px;border-radius:7px;font-size:13px}.button:hover{background:#c90010}.text-link,.receive-tag{font-size:12px;color:var(--muted)}.mail-policy{font-size:11px;line-height:1.9;color:var(--muted);border-top:1px solid var(--line);padding-top:17px;margin:22px 0 0}.upload:after{content:'';height:62px}.closing{padding-top:90px;padding-bottom:80px;text-align:center}.closing .eyebrow{justify-content:center;font-size:9px}.closing h2{font-size:30px;font-weight:500;margin:18px 0 10px}.closing p{font-size:13px;color:var(--muted)}.footer{display:flex;justify-content:space-between;align-items:center;gap:25px;border-top:1px solid var(--line);padding-top:28px;padding-bottom:30px;font-size:11px;color:var(--muted)}.footer .brand{font-size:15px;color:var(--text)}.footer>span a{display:block;font-size:10px;margin-top:4px}.footer>span{text-align:center}
@media(max-width:900px){.shell{width:calc(100% - 48px)}.hero-mark{right:0;width:160px;top:150px;opacity:.7}.hero-mark img{width:160px;height:160px}.product{padding:25px}.hero h1{font-size:48px}.product-top{flex-wrap:wrap}.product-actions{gap:15px}.button{gap:15px}.upload:after{height:82px}}
@media(max-width:650px){.header{height:86px}.brand{font-size:17px}.brand img{width:32px;height:32px}.brand small{font-size:6px}nav{gap:12px}nav>a{display:none}.theme-toggle{padding:7px 11px}.hero{padding-top:55px;padding-bottom:45px}.hero h1{font-size:37px;letter-spacing:-1px}.hero p{font-size:13px}.hero-mark{right:-20px;top:160px;width:100px;opacity:.18}.hero-mark img{width:100px;height:100px}.hero-mark span{display:none}.eyebrow{font-size:9px;letter-spacing:1px}.product-grid{grid-template-columns:1fr}.section-head{font-size:10px}.product h2{font-size:28px}.product-icon{margin-top:25px}.upload:after{display:none}.closing{padding:60px 0}.closing h2{font-size:23px}.footer{flex-wrap:wrap;justify-content:space-between}.footer>span{order:3;width:100%;text-align:left}.product-actions{margin-top:0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}