:root{--bg:#f7f8fa;--surface:#fff;--surface-soft:#f1f3f6;--text:#15171a;--muted:#69717d;--line:#e2e6eb;--accent:#e96d3f;--accent-soft:#fff0e9;--code:#171a1f;--code-text:#e6edf3;--shadow:0 14px 36px rgba(20,27,38,.08)}
[data-theme="dark"]{--bg:#101214;--surface:#171a1e;--surface-soft:#20242a;--text:#f2f4f7;--muted:#9ba4af;--line:#2b3139;--accent:#ff936d;--accent-soft:#35221b;--code:#0b0d0f;--code-text:#e6edf3;--shadow:0 18px 42px rgba(0,0,0,.2)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;transition:background .2s,color .2s}button,a{font:inherit}button{cursor:pointer}a{color:var(--accent);text-decoration:none}
.topbar{position:sticky;top:0;z-index:10;height:64px;border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(16px)}.topbar-inner{height:100%;max-width:1360px;margin:auto;padding:0 28px;display:flex;align-items:center;justify-content:space-between}.brand{border:0;background:none;color:var(--text);display:flex;gap:10px;align-items:center;font-weight:750;font-size:16px;padding:0}.brand-mark{display:grid;place-items:center;width:28px;height:28px;border-radius:9px;background:var(--text);color:var(--bg);font-weight:900;font-size:14px}.top-actions{display:flex;align-items:center;gap:10px}.search{width:220px;height:36px;display:flex;align-items:center;gap:6px;padding:0 10px;border:1px solid var(--line);border-radius:9px;background:var(--surface);color:var(--muted)}.search input{width:100%;border:0;outline:0;background:transparent;color:var(--text);font-size:13px}.icon-btn{border:1px solid var(--line);background:var(--surface);color:var(--text);height:36px;min-width:36px;border-radius:9px}.console-link{height:36px;padding:6px 13px;border-radius:9px;background:var(--text);color:var(--bg);font-weight:650;font-size:13px}.menu-btn{display:none}
.shell{max-width:1360px;margin:auto;display:flex}.sidebar{position:sticky;top:64px;align-self:flex-start;height:calc(100vh - 64px);width:250px;padding:35px 22px 24px;border-right:1px solid var(--line);display:flex;flex-direction:column}.sidebar-label,.nav-group{color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.12em;font-weight:700}.nav-list{display:flex;flex-direction:column;gap:3px;margin-top:14px}.nav-group{margin:24px 10px 5px}.nav-item{border:0;background:transparent;text-align:left;color:var(--muted);padding:9px 11px;border-radius:7px;font-size:14px}.nav-item:hover,.nav-item.active{background:var(--surface-soft);color:var(--text);font-weight:650}.nav-item.active{box-shadow:inset 2px 0 var(--accent)}.sidebar-foot{margin-top:auto;color:var(--muted);font-size:12px;padding:12px 8px;display:flex;gap:8px;align-items:center}.status-dot{width:7px;height:7px;border-radius:99px;background:#35b779;box-shadow:0 0 0 4px color-mix(in srgb,#35b779 18%,transparent)}
.content{width:100%;max-width:900px;padding:72px 70px 100px;margin:0 auto}.page{display:none;animation:fade .18s ease}.page.active{display:block}@keyframes fade{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}.eyebrow{font-size:11px;font-weight:750;color:var(--accent);letter-spacing:.14em;margin-bottom:13px}.page h1{font-size:42px;line-height:1.15;letter-spacing:-.02em;margin:0 0 18px}.lead{font-size:17px;line-height:1.8;color:var(--muted);max-width:760px;margin:0 0 26px}.page h2{font-size:20px;line-height:1.3;margin:42px 0 13px}.page p{color:var(--muted)}code{font:13px/1.6 "SFMono-Regular",Consolas,"Liberation Mono",monospace;background:var(--surface-soft);border-radius:4px;padding:2px 5px;color:var(--text)}pre code{padding:0;background:none;color:inherit}.hero-actions{display:flex;gap:10px;margin:28px 0}.primary,.secondary{height:42px;border-radius:8px;padding:0 17px;font-weight:650;text-decoration:none;display:inline-flex;align-items:center;gap:8px}.primary{border:1px solid var(--text);background:var(--text);color:var(--bg)}.secondary{border:1px solid var(--line);background:var(--surface);color:var(--text)}.endpoint-strip{display:flex;align-items:center;gap:13px;border:1px solid var(--line);border-radius:9px;padding:11px 14px;background:var(--surface);margin:28px 0 34px}.endpoint-label{font-size:11px;color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:.06em}.endpoint-strip code{margin-right:auto;background:none;padding:0}.copy-btn{border:0;background:transparent;color:var(--muted);font-size:12px;padding:3px 5px}.copy-btn:hover{color:var(--accent)}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.feature-card{min-height:142px;text-align:left;display:flex;align-items:flex-start;gap:12px;position:relative;border:1px solid var(--line);border-radius:10px;background:var(--surface);padding:17px;color:var(--text);box-shadow:var(--shadow);transition:.18s}.feature-card:hover{transform:translateY(-2px);border-color:var(--accent)}.feature-card strong{display:block;font-size:15px;margin:2px 0 7px}.feature-card small{display:block;color:var(--muted);line-height:1.55;font-size:12px}.feature-icon{width:32px;height:32px;display:grid;place-items:center;flex:0 0 auto;border-radius:8px;font-weight:800}.chat-icon{background:#e8f3ff;color:#2072c9}.image-icon{background:var(--accent-soft);color:var(--accent)}.model-icon{background:#eaf7f0;color:#259562}.card-arrow{position:absolute;right:15px;bottom:12px;color:var(--muted)}.callout{margin-top:28px;border:1px solid color-mix(in srgb,var(--accent) 28%,var(--line));background:var(--accent-soft);border-radius:9px;padding:13px 15px;display:flex;gap:10px;color:var(--muted);font-size:13px}.callout-mark{display:grid;place-items:center;flex:0 0 auto;width:19px;height:19px;border-radius:50%;background:var(--accent);color:#fff;font-size:11px;font-weight:800}
.code-block{margin:14px 0 25px;border-radius:9px;overflow:hidden;background:var(--code);box-shadow:var(--shadow)}.code-head{height:38px;padding:0 13px;display:flex;align-items:center;justify-content:space-between;color:#a7b0bc;border-bottom:1px solid #303640;font:12px monospace}.code-head .copy-btn{color:#b4bdc8}.code-block pre{overflow:auto;padding:17px 18px;margin:0;color:var(--code-text);font:13px/1.75 "SFMono-Regular",Consolas,"Liberation Mono",monospace}.code-tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-top:25px}.code-tab{border:0;background:transparent;color:var(--muted);padding:8px 12px;border-bottom:2px solid transparent}.code-tab.active{color:var(--text);border-color:var(--accent);font-weight:650}.tab-panel{display:none}.tab-panel.active{display:block}.method-line{display:flex;align-items:center;gap:12px;margin:26px 0 34px}.method-line code{font-size:14px;background:none;padding:0}.method{font:750 11px monospace;padding:4px 8px;border-radius:5px}.post{color:#087a50;background:#dcf8eb}.method-line .copy-btn{margin-left:auto}.param-table{border:1px solid var(--line);border-radius:9px;overflow:hidden}.param-row{display:grid;grid-template-columns:150px 110px 1fr;gap:15px;padding:12px 15px;border-top:1px solid var(--line);align-items:start}.param-row:first-child{border-top:0}.param-head{background:var(--surface-soft);color:var(--muted);font-size:12px;font-weight:700}.param-row span{color:var(--muted);font-size:13px}.param-row code{background:none;padding:0;color:var(--text)}
.model-section{margin-top:28px;border-top:1px solid var(--line);padding-top:24px}.section-title{display:flex;gap:12px;align-items:center}.section-title h2{margin:0 0 2px}.section-title p{margin:0;font-size:13px}.model-grid{display:flex;flex-wrap:wrap;gap:9px;margin:20px 0 34px}.model-chip{border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:7px;padding:8px 11px;font:13px monospace}.model-chip:hover{border-color:var(--accent);color:var(--accent)}.toast{position:fixed;left:50%;bottom:25px;transform:translate(-50%,15px);opacity:0;pointer-events:none;padding:8px 13px;border-radius:7px;background:var(--text);color:var(--bg);font-size:12px;transition:.2s}.toast.show{opacity:1;transform:translate(-50%,0)}
.content{min-width:0}.param-row>*{min-width:0;overflow-wrap:anywhere}.sidebar{flex-shrink:0}
@media(max-width:860px){.topbar-inner{padding:0 18px}.search{width:170px}.console-link{display:none}.sidebar{position:fixed;z-index:9;left:0;top:64px;transform:translateX(-100%);transition:transform .2s;background:var(--bg);width:260px;box-shadow:var(--shadow)}.sidebar.open{transform:none}.menu-btn{display:block}.content{padding:52px 34px 80px}.card-grid{grid-template-columns:1fr}.feature-card{min-height:100px}.page h1{font-size:36px}}
@media(max-width:540px){.topbar{height:58px}.topbar-inner{padding:0 14px}.top-actions{gap:6px}.search{width:130px;height:34px}.icon-btn{height:34px;min-width:34px}.shell .sidebar{top:58px;height:calc(100vh - 58px)}.content{padding:40px 18px 62px}.page h1{font-size:31px}.lead{font-size:15px}.endpoint-strip{align-items:flex-start;flex-wrap:wrap;gap:7px}.endpoint-strip code{width:100%;order:3;overflow:auto}.hero-actions{margin:22px 0}.param-row{grid-template-columns:1fr;gap:3px}.param-head{display:none}.param-row code{font-weight:700}.method-line{flex-wrap:wrap;gap:8px}.method-line .copy-btn{margin-left:0}.code-block pre{font-size:12px}.brand{font-size:14px}}