:root{
  --aif-bg:#f7f4ff;
  --aif-panel:rgba(255,255,255,.72);
  --aif-panel-strong:#fff;
  --aif-text:#172033;
  --aif-muted:#738099;
  --aif-soft:#eef2ff;
  --aif-line:#dde3f1;
  --aif-purple:#7434ff;
  --aif-purple-2:#9b6cff;
  --aif-blue:#18b7ff;
  --aif-green:#16c784;
  --aif-orange:#f59e0b;
  --aif-shadow:0 22px 70px rgba(68,42,148,.16);
  --aif-radius:24px;
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body.aif-ai-page{
  margin:0;
  min-height:100svh;
  color:var(--aif-text);
  font-family:"Inter","Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  background:
    radial-gradient(circle at 14% 12%, rgba(116,52,255,.18), transparent 32rem),
    radial-gradient(circle at 90% 18%, rgba(24,183,255,.14), transparent 32rem),
    linear-gradient(115deg,#fbfbff 0%,#f7f3ff 42%,#fdfdff 100%);
  overflow-x:hidden;
}
body.aif-ai-page::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background-image:linear-gradient(rgba(116,52,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(116,52,255,.045) 1px,transparent 1px);
  background-size:36px 36px;
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.45),transparent 70%);
}
button,a,input,textarea,select{font:inherit}
button,a{touch-action:manipulation}
button{cursor:pointer}
a{color:inherit;text-decoration:none}
.aif-shell{display:grid;grid-template-columns:260px minmax(0,1fr);min-height:100svh;position:relative;z-index:1}
.aif-sidebar{
  position:sticky;top:0;height:100svh;padding:18px 14px;
  background:linear-gradient(180deg,#6f2cff,#7c3fff 45%,rgba(255,255,255,.68));
  color:#fff;border-right:1px solid rgba(255,255,255,.48);box-shadow:12px 0 44px rgba(73,40,146,.14);
  overflow-y:auto;
}
.aif-brand{display:flex;align-items:center;gap:12px;margin-bottom:22px;padding:10px 12px;border-radius:20px;background:rgba(255,255,255,.13)}
.aif-brand-mark{width:46px;height:46px;display:grid;place-items:center;border-radius:16px;background:#fff;color:var(--aif-purple);box-shadow:0 14px 26px rgba(39,18,92,.2)}
.aif-brand strong{display:block;font-size:20px;letter-spacing:.02em}
.aif-brand small{display:block;color:rgba(255,255,255,.72);font-size:12px;margin-top:2px}
.aif-nav-title{margin:18px 12px 8px;color:rgba(255,255,255,.64);font-size:12px;font-weight:800;letter-spacing:.08em}
.aif-nav-item{
  width:100%;display:flex;align-items:center;gap:12px;min-height:48px;margin:3px 0;padding:0 14px;border:0;border-radius:14px;
  color:rgba(255,255,255,.86);background:transparent;text-align:left;font-weight:700;transition:.18s ease;
}
.aif-nav-item:hover,.aif-nav-item.is-active{color:#fff;background:rgba(255,255,255,.18);box-shadow:inset 0 0 0 1px rgba(255,255,255,.12);transform:translateX(2px)}
.aif-nav-item i{width:18px;text-align:center}
.aif-sidebar-card{margin:24px 4px 0;padding:16px;border-radius:20px;background:rgba(255,255,255,.15);box-shadow:inset 0 0 0 1px rgba(255,255,255,.14)}
.aif-sidebar-card b{display:block;font-size:15px}
.aif-sidebar-card p{margin:8px 0 14px;color:rgba(255,255,255,.72);font-size:13px;line-height:1.6}
.aif-soft-btn,.aif-sidebar-card button{width:100%;border:0;min-height:40px;border-radius:14px;color:var(--aif-purple);background:#fff;font-weight:900}
.aif-main{min-width:0;padding:16px 24px 28px}
.aif-topbar{
  position:sticky;top:12px;z-index:20;display:flex;align-items:center;gap:14px;min-height:62px;padding:10px 14px;
  border:1px solid rgba(215,221,237,.85);border-radius:22px;background:rgba(255,255,255,.74);
  backdrop-filter:blur(24px) saturate(1.2);-webkit-backdrop-filter:blur(24px) saturate(1.2);box-shadow:var(--aif-shadow)
}
.aif-icon-btn,.aif-avatar{display:inline-grid;place-items:center;border:1px solid var(--aif-line);background:#fff;border-radius:16px;color:var(--aif-purple)}
.aif-icon-btn{width:42px;height:42px}.aif-menu{display:none}.aif-avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,#fff,#efe8ff)}
.aif-title{min-width:0;flex:1}.aif-title span{display:block;color:var(--aif-muted);font-size:13px;font-weight:700}.aif-title strong{display:block;font-size:20px;letter-spacing:-.02em}
.aif-top-actions{display:flex;align-items:center;gap:10px}
.aif-chip{
  display:inline-flex;align-items:center;gap:8px;min-height:40px;padding:0 14px;border:1px solid var(--aif-line);border-radius:999px;
  color:#38445c;background:#fff;font-weight:800;box-shadow:0 10px 28px rgba(47,48,100,.08)
}
.aif-chip:hover{border-color:#cab8ff;color:var(--aif-purple)}
.aif-provider-strip{display:flex;gap:10px;overflow:auto;padding:16px 0 12px;scrollbar-width:none}
.aif-provider-strip::-webkit-scrollbar{display:none}
.aif-provider-strip button{
  flex:0 0 auto;border:1px solid var(--aif-line);background:rgba(255,255,255,.72);min-height:40px;padding:0 16px;border-radius:999px;
  color:#55627a;font-weight:800;box-shadow:0 10px 28px rgba(47,48,100,.06)
}
.aif-provider-strip button.is-active{color:#fff;border-color:transparent;background:linear-gradient(135deg,var(--aif-purple),var(--aif-purple-2))}
.aif-layout{display:grid;grid-template-columns:minmax(250px,320px) minmax(0,1fr);gap:18px;align-items:start}
.aif-control-panel,.aif-chat-card,.aif-model-board,.aif-token-board,.aif-console-panel,.aif-console-card{
  border:1px solid rgba(217,223,240,.86);border-radius:var(--aif-radius);background:var(--aif-panel);
  backdrop-filter:blur(20px) saturate(1.15);-webkit-backdrop-filter:blur(20px) saturate(1.15);box-shadow:var(--aif-shadow)
}
.aif-control-panel{position:sticky;top:94px;padding:16px;display:grid;gap:16px}
.aif-field{display:grid;gap:8px;color:#46536a;font-weight:800}
.aif-field select,.aif-model-search input,.aif-composer textarea{
  width:100%;border:1px solid #d5dced;border-radius:14px;background:rgba(255,255,255,.78);color:var(--aif-text);outline:none
}
.aif-field select{height:44px;padding:0 12px}
.aif-model-search{position:relative}.aif-model-search i{position:absolute;left:13px;top:50%;transform:translateY(-50%);color:#9aa6bd}.aif-model-search input{height:42px;padding:0 12px 0 36px}
.aif-range-row{display:grid;gap:8px}.aif-range-row label{display:flex;align-items:center;justify-content:space-between;color:#46536a;font-weight:800}.aif-range-row output{color:var(--aif-purple)}
.aif-range-row input{width:100%;accent-color:var(--aif-purple)}
.aif-meter-card{padding:14px;border-radius:18px;background:linear-gradient(135deg,#fff,#f0eaff);border:1px solid #e0d7ff}.aif-meter-card span{display:block;color:var(--aif-muted);font-size:12px;font-weight:800}.aif-meter-card strong{display:block;font-size:26px;margin-top:4px}.aif-meter-card small{display:block;color:#7b6ba8;margin-top:4px}
.aif-mini-actions{display:grid;grid-template-columns:1fr;gap:10px}.aif-mini-actions button,.aif-token-card button,.aif-token-card a,.aif-console-buttons button,.aif-console-buttons a{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;border:0;border-radius:15px;color:#fff;background:linear-gradient(135deg,var(--aif-purple),var(--aif-purple-2));font-weight:900;box-shadow:0 14px 30px rgba(116,52,255,.22)
}
.aif-chat-card{min-height:calc(100svh - 150px);display:grid;grid-template-rows:auto minmax(360px,1fr) auto;overflow:hidden}
.aif-billing-banner{display:flex;align-items:center;gap:10px;margin:14px 14px 0;padding:10px 14px;border-radius:14px;background:#eee8ff;color:#4f3d88;font-weight:800}
.aif-messages{padding:18px;overflow:auto;min-height:420px}.aif-welcome{max-width:860px;margin:64px auto;text-align:center}.aif-welcome-orb{width:82px;height:82px;margin:0 auto 16px;display:grid;place-items:center;border-radius:28px;color:#fff;background:linear-gradient(135deg,var(--aif-purple),var(--aif-blue));box-shadow:0 24px 64px rgba(116,52,255,.28);font-size:32px}.aif-welcome h1{font-size:clamp(30px,5vw,52px);margin:0;letter-spacing:-.05em}.aif-welcome p{max-width:680px;margin:14px auto 22px;color:#66738d;line-height:1.8}
.aif-prompt-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.aif-prompt-grid button{min-height:42px;border:1px solid var(--aif-line);border-radius:14px;background:#fff;color:#536078;font-weight:800}
.aif-msg{display:flex;gap:12px;margin:0 0 16px}.aif-msg.is-user{justify-content:flex-end}.aif-msg-bubble{max-width:min(780px,88%);padding:13px 15px;border-radius:18px;background:#fff;box-shadow:0 12px 30px rgba(47,48,100,.08);line-height:1.75;white-space:pre-wrap}.aif-msg.is-user .aif-msg-bubble{color:#fff;background:linear-gradient(135deg,var(--aif-purple),var(--aif-purple-2))}
.aif-composer{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;margin:0 14px 14px;padding:10px;border:1px solid #dde3f1;border-radius:20px;background:#fff}.aif-composer textarea{resize:vertical;min-height:74px;max-height:220px;padding:12px;border:0;background:transparent}.aif-composer-actions{display:grid;gap:8px;align-content:end}.aif-composer-actions button{border:0;border-radius:16px}.aif-composer-actions button[type=submit]{width:54px;height:44px;color:#fff;background:linear-gradient(135deg,var(--aif-purple),var(--aif-purple-2))}.aif-ghost{height:38px;padding:0 14px;color:#69758d;background:#eef2ff}
.aif-model-board,.aif-token-board{padding:18px;min-height:calc(100svh - 150px)}
.aif-section-head{display:flex;justify-content:space-between;gap:12px;margin-bottom:16px}.aif-section-head span{color:var(--aif-muted);font-weight:900}.aif-section-head strong{font-size:20px}
.aif-model-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}.aif-model-card{padding:16px;border:1px solid var(--aif-line);border-radius:20px;background:rgba(255,255,255,.74);box-shadow:0 12px 30px rgba(47,48,100,.06)}.aif-model-card span{display:inline-flex;padding:4px 9px;border-radius:999px;background:#eee8ff;color:var(--aif-purple);font-size:12px;font-weight:900}.aif-model-card h3{margin:10px 0 6px}.aif-model-card p{margin:0;color:#6a768e;line-height:1.6;font-size:13px}.aif-model-card button{margin-top:12px;border:0;border-radius:13px;min-height:36px;padding:0 12px;color:#fff;background:var(--aif-purple);font-weight:900}
.aif-token-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.aif-token-card{padding:18px;border:1px solid var(--aif-line);border-radius:22px;background:#fff}.aif-token-card i{font-size:26px;color:var(--aif-purple)}.aif-token-card p{color:#66738d;line-height:1.7}
.aif-key-box,.aif-docs-code{white-space:pre-wrap;word-break:break-word;margin-top:16px;padding:16px;border:1px solid #d6deef;border-radius:18px;background:#0f172a;color:#e2e8f0;overflow:auto}
.aif-backdrop{display:none}
.aif-console{position:relative;z-index:1;width:min(1160px,calc(100vw - 28px));margin:0 auto;padding:28px 0 48px}.aif-console-hero{padding:26px;border-radius:30px;color:#fff;background:linear-gradient(135deg,#6f2cff,#9b6cff 58%,#18b7ff);box-shadow:var(--aif-shadow)}.aif-console-hero h1{font-size:clamp(34px,5vw,58px);margin:20px 0 8px;letter-spacing:-.05em}.aif-console-hero p{max-width:720px;line-height:1.8;color:rgba(255,255,255,.82)}.aif-back-link,.aif-console-actions a,.aif-console-actions button{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(255,255,255,.22);border-radius:999px;min-height:40px;padding:0 14px;background:rgba(255,255,255,.14);color:#fff;font-weight:900}.aif-console-actions{display:flex;gap:10px;flex-wrap:wrap}.aif-console-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:18px 0}.aif-console-card{padding:18px}.aif-console-card span{color:var(--aif-muted);font-weight:900}.aif-console-card strong{display:block;margin-top:8px;font-size:24px}.aif-console-card p{color:#66738d}.aif-console-panel{padding:18px;margin-top:16px}.aif-console-buttons{display:flex;gap:10px;flex-wrap:wrap}.aif-list{display:grid;gap:10px}.aif-list-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px;border:1px solid var(--aif-line);border-radius:16px;background:#fff}.aif-list-row small{color:#7a879d}
@media(max-width:1080px){.aif-shell{grid-template-columns:220px minmax(0,1fr)}.aif-layout{grid-template-columns:1fr}.aif-control-panel{position:relative;top:auto;grid-template-columns:repeat(2,minmax(0,1fr))}.aif-token-grid,.aif-console-grid{grid-template-columns:1fr 1fr}.aif-prompt-grid{grid-template-columns:1fr 1fr}}
@media(max-width:820px){.aif-shell{display:block}.aif-sidebar{position:fixed;z-index:60;left:0;top:0;width:min(86vw,330px);transform:translateX(-105%);transition:.22s ease}.aif-nav-open .aif-sidebar{transform:translateX(0)}.aif-backdrop{display:block;position:fixed;inset:0;background:rgba(15,23,42,.35);z-index:50;opacity:0;pointer-events:none;transition:.2s ease}.aif-nav-open .aif-backdrop{opacity:1;pointer-events:auto}.aif-main{padding:10px}.aif-menu{display:inline-grid}.aif-topbar{top:8px;border-radius:20px}.aif-top-actions .aif-chip span,.aif-chip:nth-child(1){display:none}.aif-layout{gap:12px}.aif-control-panel{grid-template-columns:1fr}.aif-chat-card{min-height:calc(100svh - 148px)}.aif-prompt-grid,.aif-token-grid,.aif-console-grid{grid-template-columns:1fr}.aif-welcome{margin:28px auto}.aif-composer{grid-template-columns:1fr}.aif-composer-actions{display:flex;justify-content:space-between}.aif-composer-actions button[type=submit]{width:64px}.aif-console{padding:12px 0 36px}.aif-console-hero{border-radius:24px}.aif-msg-bubble{max-width:94%}}
@media(max-width:520px){.aif-title strong{font-size:17px}.aif-provider-strip{padding-top:12px}.aif-control-panel,.aif-chat-card,.aif-model-board,.aif-token-board{border-radius:20px}.aif-messages{padding:12px}.aif-billing-banner{font-size:12px}.aif-welcome h1{font-size:30px}.aif-section-head{display:block}.aif-model-grid{grid-template-columns:1fr}.aif-console-buttons>*{width:100%}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important}}


.aif-plan-board{padding:18px;min-height:calc(100svh - 150px);border:1px solid rgba(217,223,240,.86);border-radius:var(--aif-radius);background:var(--aif-panel);backdrop-filter:blur(20px) saturate(1.15);-webkit-backdrop-filter:blur(20px) saturate(1.15);box-shadow:var(--aif-shadow)}
.aif-plan-tabs{display:flex;gap:10px;flex-wrap:wrap;margin:0 0 16px}
.aif-plan-tabs button{min-height:38px;padding:0 14px;border:1px solid var(--aif-line);border-radius:999px;background:#fff;color:#536078;font-weight:900}
.aif-plan-tabs button.is-active{border-color:transparent;color:#fff;background:linear-gradient(135deg,var(--aif-purple),var(--aif-purple-2))}
.aif-plan-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px}
.aif-plan-grid-compact{margin-top:12px}
.aif-plan-grid-compact .aif-plan-card{padding:14px}
.aif-token-subtitle{margin-top:18px;color:var(--aif-muted);font-weight:900}
.aif-plan-card{position:relative;display:flex;flex-direction:column;gap:10px;padding:18px;border:1px solid #dfe4f4;border-radius:24px;background:linear-gradient(180deg,#fff,rgba(255,255,255,.74));box-shadow:0 14px 38px rgba(47,48,100,.08);overflow:hidden}
.aif-plan-card.is-recommended{border-color:#b9a5ff;box-shadow:0 18px 48px rgba(116,52,255,.18)}
.aif-plan-card.is-recommended::before{content:"";position:absolute;inset:0 0 auto;height:5px;background:linear-gradient(90deg,var(--aif-purple),var(--aif-blue))}
.aif-plan-badge{align-self:flex-start;display:inline-flex;align-items:center;min-height:26px;padding:0 10px;border-radius:999px;background:#efe8ff;color:var(--aif-purple);font-size:12px;font-weight:900}
.aif-plan-card h3{margin:0;font-size:20px}
.aif-plan-card p{margin:0;color:#65728a;line-height:1.65;font-size:13px}
.aif-plan-price{font-size:30px;font-weight:950;letter-spacing:-.04em;color:#1f2937}
.aif-plan-tokens{color:var(--aif-purple);font-weight:900}
.aif-plan-card ul{margin:0;padding:0;list-style:none;display:grid;gap:7px}
.aif-plan-card li{color:#5d6a82;font-size:13px}
.aif-plan-card li::before{content:"✓";display:inline-grid;place-items:center;width:18px;height:18px;margin-right:7px;border-radius:50%;background:#ecfdf5;color:#16a34a;font-size:11px;font-weight:900}
.aif-plan-card button{margin-top:auto;min-height:42px;border:0;border-radius:15px;color:#fff;background:linear-gradient(135deg,var(--aif-purple),var(--aif-purple-2));font-weight:950;box-shadow:0 14px 30px rgba(116,52,255,.2)}
.aif-plan-note{margin:14px 0 0;color:#7b879d;line-height:1.7}
@media(max-width:820px){.aif-plan-board{border-radius:20px}.aif-plan-grid{grid-template-columns:1fr}}


/* Panel switching fix: author display rules must not override the hidden attribute. */
.aif-ai-page [hidden],
.aif-layout [hidden],
[data-view-panel][hidden] {
  display: none !important;
}

/* Active panels get predictable layout after being shown by JS. */
[data-view-panel="chat"]:not([hidden]) {
  display: grid;
}

[data-view-panel="models"]:not([hidden]),
[data-view-panel="tokens"]:not([hidden]),
[data-view-panel="plans"]:not([hidden]) {
  display: block;
}

/* Keep non-chat panels in the main content column instead of stacking under the left control panel. */
.aif-layout > [data-view-panel]:not([data-view-panel="chat"]) {
  grid-column: 2;
}

.aif-layout.aif-wide-view {
  grid-template-columns: minmax(0, 1fr);
}

.aif-layout.aif-wide-view .aif-control-panel {
  display: none;
}

.aif-layout.aif-wide-view > [data-view-panel] {
  grid-column: 1;
}

@media (max-width: 1080px) {
  .aif-layout > [data-view-panel]:not([data-view-panel="chat"]) {
    grid-column: 1;
  }
}