:root{color-scheme:light;--ink:#11161c;--muted:#5c6570;--paper:#f2f4ef;--sheet:#fffefa;--line:#d5d9d0;--teal:#0b6a70;--brick:#b5482c;--gold:#d7a638;--blue:#315c9b;--dark:#18242a}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;line-height:1.72}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}.case-top{position:sticky;top:0;z-index:20;display:grid;grid-template-columns:auto 1fr;gap:24px;align-items:center;padding:14px 42px;background:rgba(242,244,239,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}.case-brand{display:grid;grid-template-columns:42px auto;column-gap:10px;align-items:center;min-width:260px}.case-brand span{grid-row:1/3;display:grid;place-items:center;width:42px;height:42px;background:var(--dark);color:#fff;font-weight:900}.case-brand strong{line-height:1;font-size:18px}.case-brand em{font-style:normal;color:var(--muted);font-size:12px}.case-nav{display:flex;justify-content:end;gap:8px}.case-nav a{padding:9px 12px;border:1px solid transparent;color:#2f3740;font-weight:700;font-size:14px}.case-nav a:hover{border-color:var(--teal);color:var(--teal);background:#fff}.case-menu{display:none;border:0;background:transparent;color:var(--dark)}.case-menu i{display:block;width:24px;height:2px;margin:4px;background:var(--dark)}.case-menu b{font-size:12px}.case-hero{padding:30px 42px 26px;display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:24px;align-items:stretch}.case-labels{grid-column:1/-1;display:flex;gap:8px;flex-wrap:wrap}.case-labels span,.case-kicker{font-size:12px;font-weight:900;color:var(--brick);letter-spacing:0}.case-labels span{padding:6px 9px;border:1px solid var(--line);background:#fff}.case-title{padding:34px 0}.case-title h1,.manual-head h1,.case-article h1{margin:0;font-size:64px;line-height:1.02;letter-spacing:0;max-width:900px}.case-title p:not(.case-kicker),.manual-head p,.case-article header p{max-width:760px;color:var(--muted);font-size:18px}.case-brief{background:var(--dark);color:#eef4f0;padding:24px;align-self:start}.case-brief h2{margin:0 0 16px;font-size:22px}.case-brief dl{margin:0;display:grid;gap:12px}.case-brief div{border-top:1px solid rgba(255,255,255,.18);padding-top:10px}.case-brief dt{color:#aebec4;font-size:12px}.case-brief dd{margin:2px 0 0;font-weight:800}.case-brief a,.case-next a,.ledger-row a,.case-note a{display:inline-flex;margin-top:18px;background:var(--gold);color:#151719;padding:9px 12px;font-weight:900}.case-photo{grid-column:1/-1;margin:0;height:280px;overflow:hidden;border:1px solid var(--line);background:#11242b}.case-photo img{width:100%;height:100%;object-fit:cover;object-position:center 54%}.case-ledger,.case-split,.case-index,.case-faq,.manual-head,.manual-list,.case-next,.case-article,.case-article-list.full{margin:0 42px 42px}.case-ledger header,.case-index header{display:grid;grid-template-columns:240px 1fr;gap:20px;align-items:end;margin-bottom:12px}.case-ledger h2,.case-index h2,.case-sheet h2,.case-note h2,.case-faq h2,.manual-list h2,.case-article h2{font-size:30px;line-height:1.18;margin:0;letter-spacing:0}.ledger-row{display:grid;grid-template-columns:70px 210px minmax(0,1fr) auto;gap:18px;align-items:center;padding:18px 0;border-top:2px solid var(--ink)}.ledger-row b{color:var(--blue);font-size:22px}.ledger-row strong{font-size:22px}.ledger-row p{margin:0;color:var(--muted)}.ledger-row a{margin:0;background:var(--teal);color:#fff}.case-split{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(300px,.8fr);gap:22px}.case-sheet,.case-note,.manual-list article,.case-article,.case-faq details{background:var(--sheet);border:1px solid var(--line)}.case-sheet,.case-note{padding:24px}.case-sheet table{width:100%;border-collapse:collapse;margin-top:14px}.case-sheet th,.case-sheet td{border-top:1px solid var(--line);padding:12px;text-align:left;vertical-align:top}.case-sheet th{width:130px;color:var(--teal)}.case-note p{color:var(--muted)}.case-article-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.case-article-list a{background:var(--sheet);border:1px solid var(--line);padding:18px;min-height:190px;display:grid;align-content:start;gap:9px}.case-article-list small{color:var(--brick);font-weight:900}.case-article-list strong{font-size:20px;line-height:1.26}.case-article-list span{color:var(--muted);font-size:14px}.case-faq details{padding:16px 18px;margin-top:10px}.case-faq summary{cursor:pointer;font-weight:900}.manual-head{padding-top:44px}.manual-head h1{font-size:52px}.manual-list{display:grid;gap:12px}.manual-list article{display:grid;grid-template-columns:78px 1fr;padding:22px}.manual-list b{font-size:24px;color:var(--blue)}.manual-list p,.manual-list li,.case-article p{color:var(--muted)}.case-next{display:flex;gap:10px;align-items:center;flex-wrap:wrap;padding:18px;background:#fff;border:1px solid var(--line)}.case-next a{margin:0}.case-article{max-width:980px;padding:34px}.case-article nav{display:flex;gap:8px;flex-wrap:wrap;color:var(--muted);font-size:13px;margin-bottom:18px}.case-article header{padding-bottom:20px;border-bottom:2px solid var(--ink)}.case-article header div{display:flex;gap:16px;flex-wrap:wrap;color:var(--brick);font-size:14px}.case-article section{margin:30px 0}.case-article aside{display:flex;flex-wrap:wrap;gap:10px;border-top:1px solid var(--line);padding-top:18px}.case-article aside a{background:#e9f0ed;color:var(--teal);padding:8px 12px;font-weight:900}.case-footer{display:grid;grid-template-columns:minmax(260px,.7fr) 1fr;gap:28px;background:var(--dark);color:#eaf1ee;padding:30px 42px}.case-footer p{color:#acbbc1}.case-footer nav{display:flex;flex-wrap:wrap;gap:12px;align-content:start}.not-found{text-align:center}.not-found p{margin-left:auto;margin-right:auto}@media(max-width:900px){.case-top{grid-template-columns:1fr auto;padding:12px 20px}.case-brand{min-width:0}.case-menu{display:block}.case-nav{display:none;grid-column:1/-1;justify-content:start;flex-wrap:wrap}.case-nav.is-open{display:flex}.case-hero{grid-template-columns:1fr;padding:22px 20px}.case-title{padding:18px 0}.case-title h1,.manual-head h1,.case-article h1{font-size:38px}.case-brief{order:4}.case-photo{height:230px}.case-ledger,.case-split,.case-index,.case-faq,.manual-head,.manual-list,.case-next,.case-article,.case-article-list.full{margin-left:20px;margin-right:20px}.case-ledger header,.case-index header,.case-split,.case-footer{grid-template-columns:1fr}.ledger-row{grid-template-columns:44px 1fr;align-items:start}.ledger-row p,.ledger-row a{grid-column:2}.case-article-list{grid-template-columns:1fr}.manual-list article{grid-template-columns:52px 1fr}.case-footer{padding:26px 20px}}