:root{--paper:#f7f6f2;--ink:#20211e;--muted:#62675d;--orange:#bc4e1d;--line:#dddfd7;color-scheme:light}*{box-sizing:border-box}html{scroll-padding-top:94px;scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}h1,h2,h3,p{margin:0}h1,h2,h3{text-wrap:balance}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}a,button{touch-action:manipulation}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #27724b;outline-offset:5px}img{display:block;width:100%;height:auto}.wrap{width:min(1240px,calc(100% - 96px));margin:auto}.skip-link{position:fixed;top:-100px;left:20px;z-index:99;background:white;padding:15px}.skip-link:focus{top:10px}.company-bar{height:44px;background:#24291f;color:white}.company-bar>div{max-width:1336px;padding:0 48px;margin:auto;height:100%;display:flex;align-items:center;justify-content:space-between}.company-bar nav{display:flex;gap:24px;font-size:11px}.company-bar nav a{display:flex;align-items:center;min-height:40px}.company-bar a:focus-visible{outline-color:#fff}.product-header{position:sticky;top:0;background:#f7f6f2f5;backdrop-filter:blur(16px);border-bottom:1px solid var(--line);z-index:30}.product-header>.wrap{height:72px;display:flex;justify-content:space-between;align-items:center;gap:24px}.product-title{font-size:16px;display:flex;align-items:center;gap:10px;min-height:44px}.product-title strong{font-size:23px}.product-header nav{display:flex;align-items:center;gap:26px;font-size:12px}.product-header nav a{display:flex;align-items:center;min-height:44px}.product-header nav a:hover,a.text-link:hover{color:var(--orange)}.nav-download,.button{background:var(--ink);color:#fff;padding:13px 20px;border-radius:28px;display:inline-flex;align-items:center;justify-content:center;min-height:46px}.product-menu{display:none}.product-hero{padding:70px 0 40px}.eyebrow{font-size:12px;line-height:1.8;color:var(--muted)}h1{font-size:clamp(42px,5vw,68px);line-height:1.2;font-weight:550;letter-spacing:-.04em;margin:24px 0}h2{font-size:clamp(30px,3.7vw,46px);line-height:1.3;font-weight:550;letter-spacing:-.035em}h3{font-size:23px;font-weight:550}.intro{font-size:17px;line-height:1.9;max-width:660px;color:var(--muted)}.hero-actions{display:flex;align-items:center;gap:28px;margin:28px 0;font-size:13px}.hero-actions>a{min-height:44px;display:inline-flex;align-items:center}.concept-label{font-size:11px;color:var(--muted);margin:30px 0 14px}.image-board{position:relative;display:block;background:#eeede8;border:1px solid var(--line);padding:0;border-radius:12px;overflow:hidden;width:100%;text-align:left}.image-board img{aspect-ratio:3/2;object-fit:contain}.image-board span{display:block;font-size:12px;padding:14px 20px;background:var(--paper);border-top:1px solid var(--line);min-height:44px}.image-board:hover span{color:var(--orange)}.chapter{padding:64px 0;border-top:1px solid var(--line)}.chapter-heading{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:end;margin-bottom:36px}.chapter-heading p{font-size:15px;line-height:1.95;color:var(--muted);max-width:580px}.facts{margin:0;display:grid;grid-template-columns:1fr 1fr;gap:0 48px}.facts>div{padding:22px 0;border-top:1px solid var(--line)}dt{font-size:13px;font-weight:600}dd{margin:10px 0 0;font-size:14px;line-height:1.9;color:var(--muted)}.caption{font-size:11px;line-height:1.8;color:var(--muted);margin-top:14px}.questions details{border-top:1px solid var(--line);padding:0 4px}.questions details:last-child{border-bottom:1px solid var(--line)}summary{cursor:pointer;font-size:16px;font-weight:550;padding:23px 0;min-height:44px}.questions p{font-size:14px;line-height:1.9;color:var(--muted);padding:0 0 24px;max-width:850px}.related{display:grid;grid-template-columns:1.3fr 1fr;gap:60px;background:#eaece4;border-radius:12px;padding:40px;margin-block:20px 60px}.related h2{font-size:29px;margin-top:15px}.related h3{margin-top:15px}.related p:not(.eyebrow){font-size:14px;line-height:1.9;color:#59604f;margin-top:18px}.related a{display:inline-flex;align-items:center;min-height:44px;margin:15px 20px 0 0;font-size:13px;text-decoration:underline;text-underline-offset:5px}.closing{padding:64px 48px;background:#24291f;color:#fff;border-radius:12px;margin-bottom:64px}.closing p{margin-top:24px;color:#d0d8c6;font-size:13px}.closing a{display:block;width:max-content;max-width:100%;overflow-wrap:anywhere;font-size:19px;margin-top:18px;min-height:44px}.closing .button{display:inline-flex;background:#f3f4eb;color:#24291f;font-size:13px;margin-top:24px}.closing a:focus-visible{outline-color:#fff}footer{border-top:1px solid var(--line);padding:38px 0}footer p{font-size:12px;line-height:1.9;color:var(--muted)}footer nav{display:flex;gap:28px;font-size:12px;margin-top:24px;flex-wrap:wrap}footer nav a{min-height:44px;display:flex;align-items:center}.image-dialog{width:min(1400px,96vw);max-height:92vh;padding:20px;border:0;border-radius:12px;overscroll-behavior:contain}.image-dialog::backdrop{background:#171d16d9}.image-dialog>div{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:15px}.image-dialog h2{font-size:20px}.image-dialog button{padding:12px 16px;min-height:44px;border:1px solid var(--line);border-radius:20px;background:#f7f6f2}.image-dialog p{font-size:12px;line-height:1.8;margin-top:15px}.image-dialog img{height:auto}
@media(max-width:900px){.wrap{width:calc(100% - 48px)}.company-bar>div{padding-inline:24px}.product-header nav{gap:16px}.chapter-heading{gap:30px}.related{gap:35px;padding:30px}}
@media(max-width:700px){html{scroll-padding-top:80px}.wrap{width:calc(100% - 40px)}.company-bar>div{padding-inline:20px}.company-bar nav{font-size:10px;gap:14px}.product-header>.wrap{height:66px;gap:12px}.product-title{font-size:12px;gap:7px}.product-title strong{font-size:21px}.product-menu{display:block;border:0;border-radius:22px;background:#eaece4;padding:11px 13px;min-height:44px;font-size:12px;white-space:nowrap}.product-header nav{display:none;position:absolute;top:65px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);padding:16px 20px;flex-direction:column;align-items:stretch;gap:4px}.product-header nav.open{display:flex}.product-header nav a{padding:8px 12px}.product-hero{padding:42px 0 30px}h1{font-size:43px;margin:20px 0}.intro{font-size:15px}.hero-actions{font-size:12px;gap:18px;flex-wrap:wrap}.concept-label{margin-top:24px}.image-board{border-radius:8px}.chapter{padding-block:42px}.chapter-heading{display:block;margin-bottom:24px}.chapter-heading h2{font-size:33px}.chapter-heading p{font-size:14px;margin-top:20px}.facts{grid-template-columns:1fr}.facts>div{padding:18px 0}.related{grid-template-columns:1fr;gap:30px;padding:26px 23px;margin-bottom:42px}.related>div+div{border-top:1px solid #c9cdbf;padding-top:26px}.related h2{font-size:26px}.closing{padding:38px 24px;margin-bottom:42px}.closing h2{font-size:32px}.closing a{font-size:17px}summary{font-size:15px;line-height:1.7;padding-block:18px}.image-dialog{padding:12px}.image-dialog h2{font-size:16px}.image-dialog button{font-size:12px}.image-dialog p{font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.product-header nav .nav-download:hover{color:#fff;background:#3e4439}