:root{--bg:#f5f6fb;--panel:#fff;--text:#171a2d;--muted:#697087;--line:#e4e6ef;--brand:#6264ea;--brand-dark:#4d4fcb;--soft:#eef0ff;--green:#0aa66f;--danger:#c43d57;--shadow:0 18px 55px rgba(35,39,91,.1);color-scheme:light}
*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;background:radial-gradient(circle at 12% 2%,#eceeff 0,transparent 28%),var(--bg);color:var(--text);font:15px/1.6 system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif}button,input,select,textarea{font:inherit}button,a{touch-action:manipulation}.topbar{position:sticky;top:0;z-index:10;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:14px max(18px,calc((100vw - 1180px)/2));background:rgba(255,255,255,.88);backdrop-filter:blur(18px);border-bottom:1px solid rgba(228,230,239,.9)}.brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none}.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:linear-gradient(145deg,#5e61ee,#7678ff);color:white;font-weight:900;box-shadow:0 8px 22px rgba(98,100,234,.28)}.brand strong,.brand small{display:block}.brand strong{font-size:15px}.brand small{font-size:10px;color:var(--muted);letter-spacing:.06em}.topbar nav{display:flex;align-items:center;gap:16px}.topbar nav a,.text-button{border:0;background:none;color:#4e5670;text-decoration:none;cursor:pointer;padding:5px 0}main{max-width:1180px;margin:0 auto;padding:36px 20px 70px}.auth-layout{min-height:calc(100vh - 150px);display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center}.auth-copy h1,.library-hero h1{font-size:clamp(38px,6vw,64px);line-height:1.06;letter-spacing:-2px;margin:12px 0 22px}.auth-copy p{max-width:650px;font-size:18px;color:var(--muted)}.eyebrow{color:var(--brand);font-size:12px;font-weight:850;letter-spacing:.12em;text-transform:uppercase}.source-pills{display:flex;gap:8px;flex-wrap:wrap}.source-pills span{padding:6px 10px;border-radius:999px;background:var(--soft);color:#5053ba;font-size:12px;font-weight:750}.auth-card{max-width:470px;width:100%;justify-self:end;padding:30px;border:1px solid var(--line);border-radius:24px;background:rgba(255,255,255,.96);box-shadow:var(--shadow)}.switch-row{display:grid;grid-template-columns:1fr 1fr;padding:4px;border-radius:13px;background:#f0f1f6}.switch{border:0;border-radius:10px;padding:9px;background:transparent;color:var(--muted);cursor:pointer;font-weight:750}.switch.active{background:white;color:var(--text);box-shadow:0 4px 14px rgba(26,30,67,.08)}.auth-heading{margin:24px 0 18px}.auth-heading h2{margin:3px 0;font-size:28px}form{display:grid;gap:15px}label{display:grid;gap:6px;color:#3f465d;font-weight:700;font-size:13px}input,select,textarea{width:100%;border:1px solid #d8dce8;border-radius:12px;background:#fff;color:var(--text);padding:12px 14px;outline:0;transition:.16s}input:focus,select:focus,textarea:focus{border-color:#8b8df2;box-shadow:0 0 0 3px rgba(98,100,234,.12)}textarea{resize:vertical}.code-row{display:grid;grid-template-columns:1fr auto;gap:8px}.primary-button,.secondary-button,.danger-button{border:0;border-radius:12px;padding:12px 17px;cursor:pointer;font-weight:800;text-decoration:none;text-align:center}.primary-button{background:linear-gradient(135deg,var(--brand),#7375f4);color:white;box-shadow:0 8px 20px rgba(98,100,234,.22)}.primary-button:hover{background:var(--brand-dark)}.secondary-button{background:#edf0f7;color:#32394e}.danger-button{background:#fff0f3;color:var(--danger)}button:disabled{opacity:.55;cursor:wait}.form-message{min-height:24px;margin:10px 0 0;color:var(--danger)}.form-message.success{color:var(--green)}.mode-line{text-align:center;color:var(--muted)}.mode-line .text-button{margin-left:6px;color:var(--brand);font-weight:800}.fine-print{color:var(--muted);font-size:12px}.library-hero{display:flex;justify-content:space-between;align-items:end;gap:24px;margin:12px 0 30px}.library-hero h1{font-size:clamp(34px,5vw,54px);margin-bottom:10px}.library-hero p{margin:0;color:var(--muted)}.hero-actions{display:flex;gap:10px;flex-wrap:wrap}.link-button{display:inline-block}.toolbar{display:grid;grid-template-columns:1fr 210px auto;gap:12px;align-items:end;padding:18px;background:rgba(255,255,255,.9);border:1px solid var(--line);border-radius:18px}.toolbar label span{font-size:11px;color:var(--muted)}.library-meta{display:flex;justify-content:space-between;gap:16px;padding:24px 2px 12px}.library-meta span{color:var(--muted)}.knowledge-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.knowledge-card{display:flex;flex-direction:column;min-height:218px;padding:20px;border:1px solid var(--line);border-radius:18px;background:var(--panel);box-shadow:0 7px 24px rgba(35,39,91,.04);cursor:pointer;transition:.18s}.knowledge-card:hover{transform:translateY(-2px);border-color:#cacdf2;box-shadow:var(--shadow)}.knowledge-card h2{font-size:18px;line-height:1.4;margin:12px 0 8px}.knowledge-card p{margin:0;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.card-meta{display:flex;justify-content:space-between;gap:10px;margin-top:auto;padding-top:18px;color:#8a90a3;font-size:11px}.source-badge{display:inline-flex;align-self:flex-start;border-radius:999px;padding:4px 9px;background:#f0f2f7;font-size:11px;font-weight:800}.source-badge.wechat-channels{background:#e8f8f1;color:#0a8c5e}.source-badge.douyin{background:#eff0f4;color:#242837}.source-badge.recording{background:#fff2e8;color:#bd681f}.empty-state{text-align:center;padding:70px 20px;color:var(--muted)}.empty-state h2{color:var(--text)}.empty-icon{display:grid;place-items:center;width:58px;height:58px;margin:0 auto;border-radius:18px;background:var(--soft);color:var(--brand);font-size:24px;font-weight:900}.modal{width:min(860px,calc(100vw - 28px));max-height:88vh;border:0;border-radius:22px;padding:26px;background:white;box-shadow:0 30px 90px rgba(16,19,48,.28)}.modal::backdrop{background:rgba(14,17,38,.48);backdrop-filter:blur(4px)}.compact-modal{width:min(600px,calc(100vw - 28px))}.modal-head{display:flex;justify-content:space-between;align-items:flex-start;gap:20px}.modal-head h2{font-size:28px;line-height:1.2;margin:5px 0 14px}.icon-button{display:grid;place-items:center;width:36px;height:36px;border:0;border-radius:50%;background:#f0f1f6;color:#565d73;font-size:24px;cursor:pointer}.detail-summary{font-size:17px;color:#424a60}.markdown{max-height:48vh;overflow:auto;padding:18px;border-radius:14px;background:#121625;color:#e9edfa;white-space:pre-wrap;word-break:break-word;font:13px/1.75 ui-monospace,SFMono-Regular,Consolas,monospace}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}.check-row{display:flex;align-items:flex-start;gap:10px}.check-row input{width:auto;margin-top:5px}
@media(max-width:850px){.auth-layout{grid-template-columns:1fr;gap:30px}.auth-copy{padding-top:20px}.auth-card{justify-self:stretch;max-width:none}.library-hero{align-items:flex-start;flex-direction:column}.knowledge-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:620px){.topbar{align-items:flex-start}.topbar nav a:first-child{display:none}.topbar nav{gap:12px}.auth-copy h1{font-size:38px;letter-spacing:-1px}.auth-card{padding:22px}.toolbar{grid-template-columns:1fr}.knowledge-grid{grid-template-columns:1fr}.library-meta{align-items:flex-start;flex-direction:column}.hero-actions{width:100%}.hero-actions>*{flex:1}.modal{padding:20px}.modal-actions{flex-direction:column}.code-row{grid-template-columns:1fr}.source-pills span{font-size:11px}}

/* Customer-facing knowledge prose: source Markdown stays available through Copy Markdown. */
.knowledge-prose{max-height:50vh;overflow:auto;margin-top:14px;padding:22px 24px;border:1px solid #e4e7ef;border-radius:16px;background:#fbfcff;color:#333b50;font-size:15px;line-height:1.82;overflow-wrap:anywhere}
.knowledge-prose h1,.knowledge-prose h2,.knowledge-prose h3,.knowledge-prose h4{color:#1d2335;line-height:1.35;margin:1.45em 0 .6em}
.knowledge-prose h1:first-child,.knowledge-prose h2:first-child,.knowledge-prose h3:first-child{margin-top:0}
.knowledge-prose h1{font-size:25px}.knowledge-prose h2{font-size:20px;padding-bottom:8px;border-bottom:1px solid #e4e7ef}.knowledge-prose h3{font-size:17px}.knowledge-prose h4{font-size:15px}
.knowledge-prose p{margin:.8em 0}.knowledge-prose ul,.knowledge-prose ol{margin:.8em 0;padding-left:1.5em}.knowledge-prose li{margin:.38em 0}
.knowledge-prose blockquote{margin:1em 0;padding:12px 15px;border-left:4px solid var(--brand);border-radius:0 10px 10px 0;background:#f0f1ff;color:#4e5670}
.knowledge-prose code{padding:2px 6px;border-radius:6px;background:#eceef4;color:#9b3d6d;font:13px/1.5 ui-monospace,SFMono-Regular,Consolas,monospace}
.knowledge-prose pre{margin:1em 0;padding:15px;overflow:auto;border:1px solid #dfe3ec;border-radius:12px;background:#f3f5f9}.knowledge-prose pre code{padding:0;background:transparent;color:#343b50}
.knowledge-prose a{color:#5053ba;text-decoration:none;border-bottom:1px solid #c8cbf4}.knowledge-prose hr{height:1px;border:0;background:#e1e5ed;margin:1.6em 0}
.markdown-table-wrap{overflow-x:auto;margin:1em 0}.knowledge-prose table{width:100%;border-collapse:collapse;font-size:13px}.knowledge-prose th,.knowledge-prose td{padding:9px 10px;border:1px solid #dfe3ec;text-align:left}.knowledge-prose th{background:#eef0f7}.markdown-empty{color:var(--muted)}
.knowledge-reading-presentation{display:grid;gap:16px}.knowledge-reading-front-section{padding:2px 2px 15px;border-bottom:1px solid #e4e7ef}.knowledge-reading-front-section h2{margin:0 0 10px;padding:0;border:0;font-size:18px}.knowledge-reading-front-section.is-conclusion{padding:18px 20px;border:1px solid #dfe1ff;border-radius:14px;background:linear-gradient(145deg,#f4f4ff,#fbfbff)}.knowledge-reading-front-section.is-conclusion h2{color:var(--brand);font-size:14px}.knowledge-reading-front-section.is-conclusion p{margin:0;color:#262d43;font-size:17px;font-weight:750;line-height:1.7}.knowledge-reading-front-section li>strong{font-size:15px}.knowledge-takeaway-detail{display:block;margin-top:3px;color:var(--muted);font-size:14px;line-height:1.65}.knowledge-complete-reading{overflow:hidden;border:1px solid #dfe3ec;border-radius:14px;background:#f6f7fb}.knowledge-complete-reading summary{position:relative;display:grid;gap:2px;padding:15px 46px 15px 17px;cursor:pointer;list-style:none}.knowledge-complete-reading summary::-webkit-details-marker{display:none}.knowledge-complete-reading summary::after{content:"＋";position:absolute;right:17px;top:50%;translate:0 -50%;color:var(--brand);font-size:20px}.knowledge-complete-reading[open] summary::after{content:"－"}.knowledge-complete-reading summary strong{font-size:15px}.knowledge-complete-reading summary small{color:var(--muted);font-size:12px}.knowledge-complete-reading-body{padding:2px 17px 16px;border-top:1px solid #dfe3ec}.knowledge-quote-card{padding:17px 19px;border:1px solid #e4dcfb;border-radius:14px;background:linear-gradient(145deg,#faf7ff,#fff)}.knowledge-quote-heading{display:grid;gap:2px}.knowledge-quote-heading strong{color:#7255a6;font-size:15px}.knowledge-quote-heading span{color:var(--muted);font-size:12px}.knowledge-quote-body{margin-top:10px}.knowledge-quote-body ul{margin:0;padding-left:1.4em}.knowledge-quote-body li{margin:.48em 0;line-height:1.72}
@media(max-width:620px){.knowledge-prose{max-height:56vh;padding:18px 16px;font-size:15px}.knowledge-prose h1{font-size:22px}.knowledge-prose h2{font-size:19px}}

/* One canonical brand image is reused by the website, apps and desktop UI. */
.brand .brand-mark{display:block;width:42px;height:42px;padding:0;border-radius:13px;object-fit:cover;background:none;box-shadow:0 8px 22px rgba(25,30,58,.22)}
.wechat-notice{display:grid;gap:4px;margin-bottom:18px;padding:13px 15px;border:1px solid #ccebdd;border-radius:14px;background:#f0fbf6;color:#176849}.wechat-notice strong{font-size:14px}.wechat-notice span{font-size:12px;line-height:1.55}.wechat-bind-mark{display:grid;place-items:center;width:58px;height:58px;margin-bottom:14px;border-radius:18px;background:linear-gradient(145deg,#12bb72,#08a45f);color:#fff;font-size:25px;font-weight:900;box-shadow:0 10px 24px rgba(10,166,111,.22)}.wechat-bind-copy h2{margin:5px 0 10px;font-size:28px}.wechat-bind-copy p{margin:0 0 12px;color:var(--muted)}.wechat-bind-copy strong{display:block;padding:10px 12px;border-radius:11px;background:#f3f5fa;color:#353c52}
.knowledge-category{display:block;margin-top:10px;color:#555fc1;font-size:12px;font-weight:800}.source-pills .effective-category{background:#e9ebff;color:#444fc2}

/* Mobile and WeChat H5 layout: compact first screen, native-sized controls and bottom sheets. */
html{min-height:100%;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent;scroll-behavior:smooth}
body{min-height:100dvh;padding-bottom:env(safe-area-inset-bottom);font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
.topbar{padding-top:max(14px,env(safe-area-inset-top))}
.brand{flex:0 0 auto;min-width:max-content;white-space:nowrap}.brand>span{min-width:max-content}.topbar nav{min-width:0}.topbar nav a,.topbar .text-button{display:inline-flex;align-items:center;min-height:42px;white-space:nowrap}
.primary-button,.secondary-button,.danger-button{min-height:46px}.icon-button{min-width:40px;min-height:40px}
.wechat-login-button{display:flex;align-items:center;justify-content:center;gap:10px;min-height:50px;margin-bottom:14px;border-radius:13px;background:linear-gradient(135deg,#16b96e,#08a35e);color:#fff;text-decoration:none;box-shadow:0 9px 22px rgba(10,166,111,.2)}
.wechat-login-button span{display:grid;place-items:center;width:26px;height:26px;border-radius:9px;background:rgba(255,255,255,.2);font-size:14px}.wechat-login-button strong{font-size:15px}
.wechat-login-divider{display:flex;align-items:center;gap:10px;margin:0 0 15px;color:#8a90a3;font-size:11px;text-align:center}.wechat-login-divider::before,.wechat-login-divider::after{content:"";height:1px;flex:1;background:#e5e7ef}.wechat-login-divider span{max-width:230px}

@media(max-width:620px){
  .topbar{align-items:center;gap:10px;padding-right:14px;padding-bottom:10px;padding-left:14px}.brand{gap:8px}.brand .brand-mark{width:38px;height:38px;border-radius:12px}.brand strong{font-size:14px}.topbar nav{max-width:48%;gap:10px;overflow-x:auto;scrollbar-width:none}.topbar nav::-webkit-scrollbar{display:none}.topbar nav a,.topbar .text-button{min-height:40px;font-size:13px}
  main{padding:18px 14px calc(82px + env(safe-area-inset-bottom))}.auth-layout{min-height:0;gap:18px}.auth-copy{padding-top:2px}.auth-copy h1{font-size:30px;line-height:1.12;letter-spacing:-.7px;margin:8px 0 10px}.auth-copy p{margin:0;font-size:14.5px;line-height:1.65}.auth-copy .source-pills{display:none}.eyebrow{font-size:11px;letter-spacing:.08em}
  .auth-card{padding:18px;border-radius:20px;box-shadow:0 12px 36px rgba(35,39,91,.09)}.auth-heading{margin:17px 0 14px}.auth-heading h2{font-size:24px}.switch{min-height:43px}form{gap:13px}input,select,textarea{min-height:49px;padding:12px 13px;font-size:16px}.code-row{grid-template-columns:minmax(0,1fr) 118px}.code-row .secondary-button{padding-inline:10px}.fine-print{line-height:1.55}
  .library-hero{gap:16px;margin:2px 0 18px}.library-hero h1{font-size:31px;letter-spacing:-.6px;margin:6px 0}.hero-actions{display:grid;grid-template-columns:1fr 1fr;gap:9px}.hero-actions>*{display:flex;align-items:center;justify-content:center;min-width:0;padding-inline:10px}
  .toolbar{grid-template-columns:minmax(0,1fr) auto;gap:10px;padding:13px;border-radius:16px}.toolbar .search-field{grid-column:1/-1}.toolbar #refresh{min-width:76px}.library-meta{gap:4px;padding:18px 2px 10px}.knowledge-grid{gap:11px}.knowledge-card{min-height:0;padding:17px;border-radius:16px}.knowledge-card h2{font-size:17px;margin:9px 0 6px}.knowledge-card p{-webkit-line-clamp:2}.card-meta{padding-top:14px}
  .modal{position:fixed;inset:auto 0 0;width:100%;max-width:none;max-height:calc(92dvh - env(safe-area-inset-top));margin:0;padding:20px 18px calc(18px + env(safe-area-inset-bottom));border-radius:22px 22px 0 0;animation:knowledge-sheet-up .2s ease-out}.modal-head h2{font-size:24px}.modal-actions{display:grid;grid-template-columns:1fr;margin-top:16px}.modal-actions>*{width:100%}.knowledge-prose{max-height:55dvh;padding:17px 15px;font-size:15px;line-height:1.78}.detail-summary{font-size:15px}.wechat-bind-mark{width:50px;height:50px;border-radius:16px}.wechat-bind-copy h2{font-size:24px}
}
@media(max-width:350px){.brand small{display:none}.topbar nav{max-width:44%}.code-row,.hero-actions{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.modal{animation:none}}
@keyframes knowledge-sheet-up{from{transform:translateY(24px);opacity:.5}to{transform:translateY(0);opacity:1}}
.billing-modal{width:min(920px,calc(100vw - 28px))}.billing-modal .modal-head p{margin:0;color:var(--muted);font-size:12px}.billing-entitlement{margin:0 0 13px;padding:16px;border-radius:17px;background:#f1f2ff}.billing-entitlement-head{display:flex;align-items:center;justify-content:space-between;gap:12px;font-weight:900}.billing-entitlement-progress{height:7px;margin:10px 0 8px;border-radius:99px;background:#fff;overflow:hidden}.billing-entitlement-progress i{display:block;height:100%;border-radius:inherit;background:var(--brand)}.billing-entitlement p{margin:6px 0 0;color:var(--muted);font-size:12px}.billing-plans{display:grid;grid-template-columns:1fr 1fr;gap:13px}.billing-plan{padding:18px;border:1px solid var(--line);border-radius:17px;background:#fbfcff}.billing-plan.plus{border-color:#bfc3f6;background:#f7f7ff}.billing-plan h3{margin:0;font-size:20px}.billing-price{margin:5px 0;color:var(--brand);font-size:27px;font-weight:900}.billing-plan p{min-height:44px;color:var(--muted);font-size:12px}.billing-buttons{display:flex;gap:8px}.billing-buttons button{flex:1}.billing-orders-head{display:flex;align-items:center;justify-content:space-between;margin-top:20px}.billing-orders-head h3{margin:0}.billing-order{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 2px;border-top:1px solid #eceef4;font-size:12px}.billing-order span{color:var(--muted)}.billing-paid{color:var(--green)!important;font-weight:800}
.billing-entitlement-progress.ai i{background:#8a91f5}.billing-entitlement-ai{margin-top:14px;padding-top:13px;border-top:1px solid rgba(90,98,183,.14)}
@media(max-width:620px){.billing-plans{grid-template-columns:1fr}.billing-plan p{min-height:0}.billing-buttons{display:grid;grid-template-columns:1fr}.billing-modal{inset:auto 10px max(8px,env(safe-area-inset-bottom));width:auto;max-width:none;max-height:calc(92dvh - env(safe-area-inset-top));margin:0;overflow:auto}}
.detail-transcript{max-height:35vh;overflow:auto;white-space:pre-wrap;margin:14px 0;padding:16px;border:1px solid #e3e6ef;border-radius:14px;background:#f7f8fc;color:#3d455b;font:13px/1.7 ui-monospace,SFMono-Regular,Consolas,monospace}.detail-chat{margin-top:14px;padding:16px;border:1px solid #e4e6ef;border-radius:16px;background:#fbfcff}.detail-chat-head{display:flex;justify-content:space-between;gap:10px}.detail-chat-head small{display:block;color:var(--muted);font-size:11px}.detail-chat form{display:grid;grid-template-columns:1fr auto;gap:9px;margin-top:10px}.chat-bubble{width:fit-content;max-width:88%;margin:8px 0;padding:9px 12px;border-radius:13px;background:#f0f2f7;font-size:13px;white-space:pre-wrap}.chat-bubble.user{margin-left:auto;background:#eceeff;color:#3f48a8}.detail-actions{flex-wrap:wrap}@media(max-width:620px){.detail-chat form{grid-template-columns:1fr}.detail-chat{padding:13px}.chat-bubble{max-width:95%}.detail-actions{display:grid;grid-template-columns:1fr 1fr}.detail-actions .danger-button{grid-column:1/-1}}
.detail-growth{margin-top:14px;padding:16px;border:1px solid #e4e6ef;border-radius:16px;background:#fff}.detail-growth-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.detail-growth-head small,.detail-growth-row small{display:block;color:var(--muted);font-size:11px}.detail-growth-head>span{color:var(--muted);font-size:11px}.detail-growth-row{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:start;padding:11px 0;border-bottom:1px solid #eff0f4}.detail-growth-row:last-child{border-bottom:0;padding-bottom:2px}.detail-growth-row strong{display:block;font-size:13px}.growth-status{padding:4px 8px;border-radius:999px;font-size:10px;font-weight:800;background:#f0f2f6;color:#626a7d}.growth-status.active{background:#eff1ff;color:#4e59bc}.growth-status.worked{background:#e9f8f1;color:#148a5b}.growth-status.partial{background:#fff5d9;color:#9a6a12}.growth-status.blocked{background:#ffecef;color:#c24a58}
.chat-bubble.assistant.markdown-answer{width:100%;white-space:normal}.chat-bubble.markdown-answer h1,.chat-bubble.markdown-answer h2,.chat-bubble.markdown-answer h3{margin:10px 0 6px;color:#252a40;line-height:1.35}.chat-bubble.markdown-answer h1{font-size:18px}.chat-bubble.markdown-answer h2{font-size:16px}.chat-bubble.markdown-answer h3{font-size:14px}.chat-bubble.markdown-answer p{margin:7px 0;line-height:1.65}.chat-bubble.markdown-answer ul,.chat-bubble.markdown-answer ol{margin:7px 0;padding-left:21px}.chat-bubble.markdown-answer blockquote{margin:8px 0;padding:8px 11px;border-left:3px solid var(--brand);border-radius:7px;background:#e9ebff;color:#535a72}.chat-bubble.markdown-answer code{padding:2px 4px;border-radius:4px;background:#e4e6ed;color:#9b3d6d}.chat-bubble.markdown-answer pre{overflow:auto;padding:10px;border-radius:9px;background:#171a28;color:#eef1ff}.check-row span small{display:block;margin-top:3px;color:var(--muted);font-weight:400}

/* Official Account H5: one light application, four clear destinations. */
.portal-navigation{position:sticky;top:72px;z-index:8;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:7px;margin:0 0 25px;padding:7px;border:1px solid rgba(220,223,235,.9);border-radius:17px;background:rgba(249,250,253,.92);box-shadow:0 10px 32px rgba(35,39,91,.07);backdrop-filter:blur(18px)}
.portal-navigation button{display:flex;align-items:center;justify-content:center;gap:8px;min-height:48px;border:0;border-radius:12px;background:transparent;color:#6d748b;font-weight:800;cursor:pointer}.portal-navigation button span{display:grid;place-items:center;width:25px;height:25px;border-radius:8px;background:#eceef7;color:#666fc6;font-size:12px}.portal-navigation button.active{background:#fff;color:#333951;box-shadow:0 5px 18px rgba(35,39,91,.1)}.portal-navigation button.active span{background:var(--brand);color:#fff}
.portal-section.active{display:block}.portal-heading{max-width:760px;margin:6px 0 28px}.portal-heading h1{margin:8px 0 10px;font-size:clamp(34px,5vw,52px);line-height:1.1;letter-spacing:-1.4px}.portal-heading p{margin:0;color:var(--muted);font-size:16px}.portal-muted{margin:0;color:var(--muted);font-size:12px}
.capture-source-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.capture-source-card{display:grid;justify-items:start;gap:5px;min-height:238px;padding:23px;border:1px solid var(--line);border-radius:22px;background:#fff;color:var(--text);text-align:left;text-decoration:none;box-shadow:0 9px 28px rgba(35,39,91,.05);cursor:pointer;transition:.18s}.capture-source-card:hover{transform:translateY(-2px);border-color:#c8cbf0;box-shadow:var(--shadow)}.capture-source-card .capture-source-icon{display:grid;place-items:center;width:52px;height:52px;margin-bottom:18px;border-radius:16px;background:#f4f1f7;color:#33384d;font-size:20px;font-weight:900}.capture-source-card.channels .capture-source-icon{background:#edf0ff;color:#5963e8}.capture-source-card.article .capture-source-icon{background:#eaf8f2;color:#099366}.capture-source-card strong{font-size:22px}.capture-source-card small{color:var(--muted);font-size:13px}.capture-source-card b{margin-top:auto;color:var(--brand);font-size:13px}.route-note{margin-top:18px;padding:20px 22px;border:1px solid #dfe3f1;border-radius:19px;background:linear-gradient(135deg,#f5f6ff,#fff)}.route-note>strong{font-size:16px}.route-note p{margin:5px 0 15px;color:var(--muted)}.route-note>div{display:flex;gap:10px;flex-wrap:wrap}
.growth-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-bottom:14px}.growth-stats article{display:grid;gap:2px;padding:18px 20px;border:1px solid var(--line);border-radius:18px;background:#fff}.growth-stats strong{font-size:28px;color:#4852c4}.growth-stats span{color:var(--muted);font-size:12px}.growth-columns{display:grid;grid-template-columns:1fr 1fr;gap:14px}.growth-panel{padding:20px;border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:0 7px 24px rgba(35,39,91,.04)}.growth-panel:first-child,.daily-review-panel{grid-column:1/-1}.growth-panel-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.growth-panel-head small{display:block;color:var(--brand);font-size:11px;font-weight:850}.growth-panel-head h2{margin:2px 0 0;font-size:20px}.growth-panel-head a{color:var(--brand);font-size:12px;text-decoration:none;font-weight:800}.growth-panel>p{margin:9px 0 0;color:var(--muted)}.growth-today-list{display:grid;gap:9px;margin-top:15px}.growth-today-row{display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center;padding:11px 12px;border-radius:13px;background:#f7f8fc}.growth-today-row button{width:28px;height:28px;border:1px solid #cfd4e2;border-radius:9px;background:#fff;color:#5963d6;cursor:pointer}.growth-today-row button.checked{border-color:#14a773;background:#14a773;color:#fff}.growth-today-row strong{display:block;font-size:13px}.growth-today-row small{color:var(--muted);font-size:10px}.growth-today-row>span{color:#757d94;font-size:10px}.daily-review-panel form{grid-template-columns:repeat(3,minmax(0,1fr));align-items:end;margin-top:15px}.daily-review-panel form button{min-height:49px}.daily-review-panel .form-message{grid-column:1/-1;margin:0}.app-upgrade-card{display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:center;margin-top:15px;padding:20px;border-radius:20px;background:linear-gradient(135deg,#22294a,#5964d3);color:#fff;text-decoration:none;box-shadow:0 16px 34px rgba(52,61,137,.22)}.app-upgrade-card>span{display:grid;place-items:center;width:48px;height:48px;border-radius:15px;background:#ffffff1d;font-weight:900}.app-upgrade-card strong,.app-upgrade-card small{display:block}.app-upgrade-card small{margin-top:3px;color:#dfe2ff}.app-upgrade-card>b{font-size:12px}
.account-action-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}.account-action-grid>a,.account-action-grid>button{display:grid;grid-template-columns:auto 1fr auto;gap:13px;align-items:center;min-height:95px;padding:17px 18px;border:1px solid var(--line);border-radius:18px;background:#fff;color:var(--text);text-align:left;text-decoration:none;cursor:pointer}.account-action-grid>a>span,.account-action-grid>button>span{display:grid;place-items:center;width:43px;height:43px;border-radius:14px;background:#eef0ff;color:#5961d2;font-weight:900}.account-action-grid strong,.account-action-grid small{display:block}.account-action-grid small{margin-top:3px;color:var(--muted);font-size:11px}.account-action-grid b{color:#a0a5b6;font-size:25px}

@media(max-width:760px){
  .portal-navigation{position:fixed;inset:auto 0 0;top:auto;z-index:20;margin:0;padding:7px 8px calc(7px + env(safe-area-inset-bottom));border-width:1px 0 0;border-radius:0;background:rgba(250,250,253,.96);box-shadow:0 -8px 30px rgba(28,32,67,.09)}.portal-navigation button{display:grid;justify-items:center;gap:1px;min-height:51px;padding:4px;font-size:10px}.portal-navigation button span{width:27px;height:27px}.portal-navigation button.active{background:#eef0ff;box-shadow:none;color:#333951}
  .portal-heading{margin:3px 0 20px}.portal-heading h1{font-size:30px;letter-spacing:-.7px}.portal-heading p{font-size:14px}.capture-source-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.capture-source-card{min-height:165px;padding:14px 10px;border-radius:17px}.capture-source-card .capture-source-icon{width:42px;height:42px;margin-bottom:9px;border-radius:14px;font-size:16px}.capture-source-card strong{font-size:16px}.capture-source-card small{font-size:10px;line-height:1.45}.capture-source-card b{font-size:10px}.route-note{padding:16px;border-radius:17px}.route-note>div{display:grid;grid-template-columns:1fr}.growth-stats{gap:7px}.growth-stats article{padding:14px 10px;border-radius:15px}.growth-stats strong{font-size:22px}.growth-columns{grid-template-columns:1fr;gap:10px}.growth-panel:first-child,.daily-review-panel{grid-column:auto}.growth-panel{padding:16px;border-radius:17px}.daily-review-panel form{grid-template-columns:1fr}.app-upgrade-card{grid-template-columns:auto 1fr;padding:16px}.app-upgrade-card>b{display:none}.account-action-grid{grid-template-columns:1fr}.account-action-grid>a,.account-action-grid>button{min-height:82px}.library-hero{margin-top:0}.library-hero h1{font-size:30px}.hero-actions{grid-template-columns:1fr}.topbar nav a{display:none}
}