.ds{--bg:#f4f7f6;--surface:#fff;--subtle:#fafcfb;--line:#e6e8e7;--line-strong:#d2d6d4;--ink:#1d1f1f;--ink2:#4f5554;--muted:#6e7473;--faint:#9aa09f;--act:#2c4a5e;--act-deep:#1f3848;--on-act:#fff;--act-soft:#e7eef1;--cel:#2f7d6f;--cel-light:#eaf4f0;--cel-bg:#f3f8f5;--gold:#b08a3e;--gold-soft:#fbf4e6;--amber:#9a6a2f;--ok:#2e8f5b;--ok-bg:#eaf7ef;--bad:#c93a32;--bad-bg:#fff0ef;--night:#15201d;--night-ink:#dce5e2;--display:"CSCA Brand Serif", "Noto Serif SC", "Songti SC", "SimSun", Georgia, serif;--sans:-apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Roboto, sans-serif;--shadow:0 1px 2px #1428230a, 0 12px 32px #1428230f}.ds *{box-sizing:border-box}.ds [hidden]{display:none!important}.ds{scroll-behavior:smooth;background:var(--bg);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;margin:0;font-size:15px;line-height:1.7}.ds button,.ds input,.ds select,.ds textarea{font:inherit;color:inherit}.ds button{cursor:pointer}.ds a{color:var(--act)}.ds img{max-width:100%;display:block}.ds :focus-visible{outline:2px solid var(--cel);outline-offset:2px;border-radius:8px}.ds h1,.ds h2,.ds h3{text-wrap:balance;margin:0}.ds p{margin:0}.ds .wrap{max-width:1160px;padding-inline:max(20px, env(safe-area-inset-left,0px));margin:0 auto}.ds .narrow{max-width:760px;margin-inline:auto}.ds .site-logo{color:#3a3f44;white-space:nowrap;-webkit-user-select:none;user-select:none;align-items:baseline;font-size:21px;line-height:1;text-decoration:none;display:inline-flex}.ds .site-logo-csca{letter-spacing:.01em;font-family:CSCA Brand Serif,Georgia,serif;font-weight:500}.ds .site-logo-pro{color:var(--cel);font-family:"CSCA Brand Tech", var(--sans);letter-spacing:-.02em;align-items:baseline;font-size:.9em;font-weight:800;display:inline-flex}.ds .site-logo-dot{background:var(--gold);border-radius:50%;align-self:baseline;width:.26em;height:.26em;margin:0 .05em 0 .12em;transform:translateY(-.2em)}.ds .top{z-index:40;background:color-mix(in srgb, var(--bg) 88%, transparent);-webkit-backdrop-filter:saturate(1.4)blur(10px);backdrop-filter:saturate(1.4)blur(10px);position:sticky;top:0}.ds .top .wrap{align-items:center;gap:18px;height:60px;display:flex}.ds .top nav{scrollbar-width:none;gap:2px;display:flex;overflow-x:auto}.ds .top nav a{color:var(--ink2);white-space:nowrap;border-radius:999px;padding:6px 12px;font-size:14px;font-weight:600;text-decoration:none}.ds .top nav a:hover{background:var(--surface)}.ds .top nav a.on{background:var(--surface);color:var(--ink);box-shadow:0 0 0 1px var(--line)}.ds .top .sp{flex:1}.ds .top select{border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:4px 10px;font-size:13px}@media (max-width:820px){.ds .top .hide-m{display:none}}.ds .menu-btn{border:1px solid var(--line);background:var(--surface);border-radius:999px;width:38px;height:38px;display:none}@media (max-width:820px){.ds .menu-btn{place-items:center;display:inline-grid}.ds .top nav.pub{display:none}}.ds .drawer-m{background:var(--surface);border-bottom:1px solid var(--line);z-index:39;gap:4px;padding:10px 20px 18px;display:grid;position:fixed;inset:60px 0 auto}.ds .drawer-m a{color:var(--ink);border-bottom:1px solid var(--line);padding:10px 4px;font-weight:600;text-decoration:none}.ds .btn{border:1px solid var(--line-strong);background:var(--surface);min-height:44px;color:var(--ink);white-space:nowrap;border-radius:999px;justify-content:center;align-items:center;gap:8px;padding:0 20px;font-weight:650;text-decoration:none;transition:transform .12s,background .15s,border-color .15s;display:inline-flex}.ds .btn:hover{border-color:var(--ink2)}.ds .btn:active{transform:scale(.98)}.ds .btn.primary{background:var(--act);border-color:var(--act);color:var(--on-act)}.ds .btn.primary:hover{background:var(--act-deep)}.ds .btn.ghost{background:0 0;border-color:#0000}.ds .btn.sm{min-height:36px;padding:0 14px;font-size:13.5px}.ds .btn:disabled{opacity:.45;cursor:default}.ds .pill{white-space:nowrap;border-radius:999px;align-items:center;gap:4px;padding:1px 10px;font-size:12px;font-weight:650;display:inline-flex}.ds .pill.cel{background:var(--cel-light);color:var(--cel)}.ds .pill.gold{background:var(--gold-soft);color:var(--amber)}.ds .pill.ok{background:var(--ok-bg);color:var(--ok)}.ds .pill.bad{background:var(--bad-bg);color:var(--bad)}.ds .pill.act{background:var(--act-soft);color:var(--act-deep)}.ds .pill.line{border:1px solid var(--line);color:var(--muted);font-weight:600}.ds .card{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:26px 28px}@media (max-width:640px){.ds .card{border-radius:18px;padding:20px 18px}}.ds .muted{color:var(--muted);font-size:13.5px}.ds .eyebrow{letter-spacing:.08em;text-transform:uppercase;color:var(--cel);font-size:12px;font-weight:700}.ds .display{font-family:var(--display);letter-spacing:-.01em;font-weight:500}.ds section.blk{padding-block:56px}.ds .blk-head{max-width:720px;margin-bottom:26px}.ds .blk-head h2{font-family:var(--display);font-size:36px;font-weight:500;line-height:1.2}@media (max-width:640px){.ds .blk-head h2{font-size:28px}}.ds .blk-head p{color:var(--ink2);margin-top:10px;font-size:16px}.ds .composer{background:linear-gradient(120deg, var(--cel-light), var(--line), var(--gold-soft), var(--cel-light));box-shadow:var(--shadow);background-size:300% 300%;border-radius:26px;padding:2px;animation:9s infinite ds-aura;position:relative}@keyframes ds-aura{0%,to{background-position:0%}50%{background-position:100%}}@media (prefers-reduced-motion:reduce){.ds .composer{animation:none}}.ds .composer-in{background:var(--surface);border-radius:24px;padding:14px 14px 10px 18px}.ds .composer textarea{resize:none;background:0 0;border:0;outline:0;width:100%;min-height:52px;font-size:16px;line-height:1.6}.ds .composer-bar{align-items:center;gap:8px;display:flex}.ds .composer-bar .tool{border:1px solid var(--line);background:var(--surface);width:34px;height:34px;color:var(--muted);border-radius:50%;place-items:center;display:grid}.ds .composer-bar .ctx{color:var(--muted);white-space:nowrap;align-items:center;gap:6px;font-size:12.5px;display:flex;overflow:hidden}.ds .composer-bar .send{background:var(--act);width:38px;height:38px;color:var(--on-act);border:0;border-radius:50%;flex:none;place-items:center;margin-left:auto;font-size:17px;display:grid}.ds .composer-bar .send:disabled{background:var(--line-strong)}.ds .chips{flex-wrap:wrap;justify-content:center;gap:8px;margin-top:14px;display:flex}.ds .chips button{border:1px solid var(--line);background:var(--surface);min-height:36px;color:var(--ink2);border-radius:999px;align-items:center;gap:6px;padding:6px 14px;font-size:13.5px;display:inline-flex}.ds .chips button:hover{border-color:var(--ink2);color:var(--ink)}.ds .chips .ic{color:var(--cel);font-size:14px}.ds .agent{border:1px solid var(--line);background:var(--surface);text-align:left;border-radius:20px;overflow:hidden}.ds .agent-h{border-bottom:1px solid var(--line);background:var(--subtle);align-items:center;gap:10px;padding:12px 16px;font-size:13.5px;display:flex}.ds .agent-h .orb{background:radial-gradient(circle at 30% 30%, #8fd1c2, var(--cel) 60%, #1f5a50);width:22px;height:22px;box-shadow:0 0 0 4px var(--cel-light);border-radius:50%;flex:none}.ds .agent-h .orb.busy{animation:1.2s ease-in-out infinite ds-pulse}@keyframes ds-pulse{50%{transform:scale(.92);box-shadow:0 0 0 8px #0000}}.ds .agent-h b{flex:1}.ds .agent ol{gap:10px;margin:0;padding:12px 16px 4px;list-style:none;display:grid}.ds .agent li{color:var(--muted);opacity:.45;grid-template-columns:22px minmax(0,1fr);gap:10px;font-size:14px;transition:opacity .25s;display:grid}.ds .agent li.on,.ds .agent li.done{opacity:1;color:var(--ink)}.ds .agent li .st{border:2px solid var(--line-strong);border-radius:50%;width:18px;height:18px;margin-top:3px}.ds .agent li.on .st{border-color:var(--cel);border-top-color:#0000;animation:.8s linear infinite ds-spin}.ds .agent li.done .st{border-color:var(--ok);background:var(--ok);position:relative}.ds .agent li.done .st:after{content:"";border:2px solid #fff;border-width:0 2px 2px 0;width:5px;height:9px;position:absolute;top:1px;left:4px;transform:rotate(45deg)}@keyframes ds-spin{to{transform:rotate(360deg)}}.ds .src{background:var(--gold-soft);color:var(--amber);border-radius:8px;align-items:center;gap:5px;margin:4px 6px 0 0;padding:1px 9px;font-size:12px;font-weight:600;display:inline-flex}.ds .src:before{content:"";border:1.5px solid;border-radius:2px;width:9px;height:11px}.ds .agent-out{padding:6px 16px 16px}.ds .agent-out .ans{background:var(--cel-bg);border:1px solid var(--cel-light);color:var(--ink);border-radius:14px;padding:14px 16px;font-size:14.5px}.ds .agent-out .warn{color:var(--faint);margin-top:8px;font-size:12px}.ds footer.night{background:var(--night);color:var(--night-ink);margin-top:40px;padding-block:56px 36px}.ds footer.night .tag{font-family:var(--display);color:#fff;font-size:34px;font-style:italic;line-height:1.25}.ds footer.night .cols{grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;margin-top:36px;font-size:13.5px;display:grid}@media (max-width:760px){.ds footer.night .cols{grid-template-columns:repeat(2,minmax(0,1fr))}}.ds footer.night h4{color:#fff;margin:0 0 8px;font-size:13.5px}.ds footer.night a{color:var(--night-ink);opacity:.8;padding:2px 0;text-decoration:none;display:block}.ds footer.night a:hover{opacity:1}.ds footer.night .legal{opacity:.6;margin-top:36px;font-size:12.5px}.ds .toast{background:var(--ink);color:var(--bg);z-index:90;border-radius:999px;max-width:calc(100vw - 32px);padding:10px 18px;font-size:14px;position:fixed;bottom:24px;left:50%;transform:translate(-50%)}.ds .ring{--p:60;--c:var(--cel);background:conic-gradient(var(--c) calc(var(--p) * 1%), var(--line) 0);border-radius:50%;flex:none;place-items:center;width:132px;height:132px;display:grid}.ds .ring>div{background:var(--surface);text-align:center;border-radius:50%;place-items:center;width:104px;height:104px;line-height:1.1;display:grid}.ds .ring b{font-family:var(--display);font-size:38px;font-weight:500}.ds .ring small{color:var(--muted);font-size:12px}