@keyframes wave{0%,to{transform:scaleY(.3)}50%{transform:scaleY(1)}}*{box-sizing:border-box}:root{--hc-bg:#08090c;--hc-bg-ink:#050608;--hc-bg-soft:#0d0f14;--hc-panel:#111217;--hc-panel-raised:#181a22;--hc-panel-elevated:#20222b;--hc-border:hsla(0,0%,100%,.1);--hc-border-strong:hsla(0,0%,100%,.16);--hc-line:hsla(0,0%,100%,.11);--hc-text:#f4f1ea;--hc-text-muted:#a8aaa3;--hc-text-weak:#70746c;--hc-muted:#a8aaa3;--hc-lime:#ceff35;--hc-coral:#ff5a3d;--hc-cyan:#52d6c6;--hc-violet:#8b5cf6;--hc-amber:#f5c542;--hc-warning:#f5c542;--hc-error:#ff5a5f;--hc-success:#5ce08a;--hc-radius:8px;--hc-radius-lg:14px;--hc-shadow:0 22px 70px rgba(0,0,0,.34);--hc-shadow-soft:0 14px 40px rgba(0,0,0,.22);--hc-glass:rgba(17,18,23,.76);--hc-font:"Aptos","PingFang SC","Microsoft YaHei",system-ui,sans-serif;--hc-font-display:"Aptos Display","PingFang SC","Microsoft YaHei",system-ui,sans-serif}html{background:var(--hc-bg)}body{margin:0;background:linear-gradient(180deg,rgba(82,214,198,.04),transparent 360px),radial-gradient(circle at 18% 0,rgba(255,90,61,.08),transparent 320px),var(--hc-bg);color:var(--hc-text);font-family:var(--hc-font);text-rendering:geometricPrecision;overflow-x:hidden}::selection{background:rgba(206,255,53,.28);color:var(--hc-text)}button,input,select,textarea{font:inherit}a,button{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--hc-lime);outline-offset:3px}.hc-shell{min-height:100vh;background:linear-gradient(180deg,rgba(82,214,198,.07),transparent 300px),radial-gradient(circle at 78% 8%,rgba(206,255,53,.12),transparent 300px),radial-gradient(circle at 8% 30%,rgba(255,90,61,.09),transparent 360px),var(--hc-bg)}.hc-container{width:min(1400px,calc(100% - 96px));margin:0 auto}.hc-button{min-height:42px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:0 20px;border:1px solid transparent;background:var(--hc-lime);color:#090a0d;font-size:14px;font-weight:800;line-height:1;text-decoration:none;cursor:pointer;transition:transform .16s ease,border-color .16s ease,background .16s ease,color .16s ease;box-shadow:0 10px 24px rgba(206,255,53,.12)}.hc-button:hover{transform:translateY(-1px);box-shadow:0 16px 34px rgba(206,255,53,.18)}.hc-button-secondary{background:hsla(0,0%,100%,.06);border-color:var(--hc-border);color:var(--hc-text);box-shadow:none}.hc-panel{border:1px solid var(--hc-border);border-radius:var(--hc-radius-lg);background:var(--hc-glass);box-shadow:var(--hc-shadow-soft)}.hc-section-title{margin:0;color:var(--hc-text);font-size:30px;line-height:1.12;font-weight:850;letter-spacing:0}.hc-section-kicker{margin:8px 0 0;color:var(--hc-text-muted);font-size:14px;line-height:1.6}@media (max-width:900px){.hc-container{width:min(100% - 40px,720px)}.hc-section-title{font-size:24px}}@media (max-width:520px){.hc-container{width:min(100% - 28px,720px)}}.demo-page{min-height:100vh;background:#07090d;color:var(--hc-text);font-size:13px}.demo-topbar{height:68px;display:flex;align-items:center;gap:28px;padding:0 32px;border-bottom:1px solid var(--hc-border);background:rgba(5,6,8,.92)}.demo-brand{color:var(--hc-text);text-decoration:none;font-weight:900;letter-spacing:.22em;white-space:nowrap}.brand-mark{display:inline-grid;place-items:center;width:25px;height:25px;margin-right:8px;border-radius:50%;background:linear-gradient(145deg,var(--hc-violet),var(--hc-lime));color:#08090c;font-size:17px;letter-spacing:0}.brand-slash{color:var(--hc-text-weak);margin-left:10px}.demo-brand em{color:var(--hc-lime);font-style:normal;letter-spacing:0}.demo-mode{display:flex;align-items:center;gap:12px;padding:9px 13px;border:1px solid var(--hc-border);border-radius:8px;margin-left:auto;color:var(--hc-text-muted)}.demo-mode strong{color:var(--hc-lime)}.demo-mode span{font-size:11px}.demo-top-actions{display:flex;align-items:center;gap:12px;color:var(--hc-text-muted);white-space:nowrap}.online-dot{width:7px;height:7px;border-radius:50%;background:var(--hc-success);box-shadow:0 0 12px var(--hc-success)}.outline-button,.provider-summary button,.section-head button,.text-button{border:1px solid var(--hc-border-strong);border-radius:999px;padding:8px 13px;background:transparent;color:var(--hc-text);cursor:pointer}.avatar{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:#252b38;color:var(--hc-text)}.demo-layout{display:grid;grid-template-columns:270px minmax(500px,1fr) 330px;min-height:calc(100vh - 68px)}.demo-sidebar,.result-panel{padding:28px 18px;border-right:1px solid var(--hc-border);background:#0a0d12}.result-panel{border-right:0;border-left:1px solid var(--hc-border)}.result-heading,.section-head,.side-title{display:flex;justify-content:space-between;align-items:center;gap:12px}.side-title{margin:0 4px 15px;font-size:15px}.side-title span{color:var(--hc-text-weak)}.file-button,.prompt-box textarea,.settings-grid select,.template-search{width:100%;border:1px solid var(--hc-border);border-radius:8px;background:#0e1219;color:var(--hc-text);outline:none}.template-search{padding:11px 12px}.prompt-box textarea:focus,.template-search:focus{border-color:var(--hc-lime)}.filter-row,.template-tabs{display:flex;gap:7px;margin:10px 0}.filter-row button,.filter-row select{flex:1 1;min-width:0;border:1px solid var(--hc-border);border-radius:6px;background:#10141b;color:var(--hc-text-muted);padding:7px 6px;font-size:11px}.filter-reset{cursor:pointer}.template-tabs{justify-content:space-between;margin:20px 3px 12px;color:var(--hc-text-muted);font-size:11px}.template-tabs button{border:0;padding:0 0 7px;color:inherit;background:transparent;cursor:pointer;font-size:inherit}.template-tabs button.active{color:var(--hc-lime);border-bottom:2px solid var(--hc-lime)}.template-tabs small{color:var(--hc-text-weak);font-size:9px}.template-note{color:var(--hc-warning);line-height:1.5;font-size:11px}.template-list{display:grid;grid-gap:7px;gap:7px}.template-item{display:grid;grid-template-columns:27px 1fr 1fr 38px;align-items:center;grid-gap:6px;gap:6px;min-height:69px;padding:10px;border:1px solid var(--hc-border);border-radius:8px;background:#10141b;color:var(--hc-text);text-align:left;cursor:pointer}.template-item.selected,.template-item:hover{border-color:var(--hc-lime);background:rgba(206,255,53,.07)}.play-dot{width:24px;height:24px;display:grid;place-items:center;border:1px solid var(--hc-border-strong);border-radius:50%;font-size:9px;color:var(--hc-text-muted)}.mini-wave{grid-column:2/-1;height:14px;background:repeating-linear-gradient(90deg,#8b5cf6 0 2px,transparent 2px 5px);opacity:.75}.wave-1{background:repeating-linear-gradient(90deg,var(--hc-cyan) 0 2px,transparent 2px 5px)}.wave-2{background:repeating-linear-gradient(90deg,#ff6da5 0 2px,transparent 2px 5px)}.wave-3{background:repeating-linear-gradient(90deg,#5c8dff 0 2px,transparent 2px 5px)}.template-copy{grid-column:2/4;display:grid;grid-gap:3px;gap:3px;min-width:0}.template-copy small,.template-copy strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.template-copy small{color:var(--hc-text-muted);font-size:10px}.template-more{display:grid;justify-items:center;align-content:center;grid-gap:1px;gap:1px;min-height:31px;border:1px solid transparent;border-radius:7px;color:var(--hc-text-weak);cursor:pointer;letter-spacing:0;font-size:15px;transition:color .18s ease,background .18s ease,border-color .18s ease,transform .18s ease}.template-more small{font-size:8px;line-height:1}.template-more:hover{color:var(--hc-lime);border-color:rgba(206,255,53,.35);background:rgba(206,255,53,.08);transform:translateY(-1px)}.template-more.is-favorite{color:var(--hc-lime);border-color:rgba(206,255,53,.5);background:rgba(206,255,53,.13);box-shadow:0 0 12px rgba(206,255,53,.12)}.template-empty{padding:28px 10px;color:var(--hc-text-muted);text-align:center;font-size:11px;line-height:1.8}.template-empty button{border:0;color:var(--hc-lime);background:transparent;cursor:pointer;font-size:11px}.pagination{display:flex;align-items:center;justify-content:center;gap:12px;padding-top:18px;color:var(--hc-text-muted);font-size:11px}.pagination button{width:24px;height:24px;border:1px solid var(--hc-border);border-radius:6px;color:var(--hc-text);background:#10141b;cursor:pointer}.pagination button:disabled{opacity:.35;cursor:not-allowed}.generate-confirm{display:grid;grid-gap:8px;gap:8px;margin-bottom:8px;padding:12px 14px;border:1px solid rgba(206,255,53,.45);border-radius:8px;background:rgba(206,255,53,.07);color:var(--hc-text);font-size:12px}.generate-confirm>span{color:var(--hc-text-muted);font-size:11px}.generate-confirm>div{display:flex;justify-content:flex-end;gap:8px}.generate-confirm button{border:1px solid var(--hc-border-strong);border-radius:6px;padding:6px 12px;color:var(--hc-text);background:#10141b;cursor:pointer}.generate-confirm .confirm-primary{border-color:var(--hc-lime);color:#0b0d10;background:var(--hc-lime);font-weight:700}.demo-workspace{padding:32px;max-width:840px;width:100%;margin:0 auto}.workspace-heading h1{margin:5px 0 0;font-size:25px}.eyebrow{color:var(--hc-lime);font-size:10px;letter-spacing:.16em;font-weight:900}.provider-grid{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:8px;gap:8px;margin-top:22px}.provider-card{display:flex;align-items:center;gap:9px;min-height:65px;padding:11px;border:1px solid var(--hc-border);border-radius:8px;background:#10141b;color:var(--hc-text);text-align:left;cursor:pointer}.provider-card.selected{border-color:var(--hc-lime);box-shadow:inset 0 0 0 1px var(--hc-lime)}.provider-icon{font-size:24px}.provider-card small,.provider-card strong{display:block}.provider-card small{margin-top:4px;color:var(--hc-text-muted);font-size:10px}.provider-summary{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-top:10px;padding:13px;border:1px solid var(--hc-border);border-radius:8px;color:var(--hc-text-muted)}.provider-summary strong{color:var(--hc-text)}.work-section{margin-top:25px}.section-head{margin-bottom:12px}.section-head h2{margin:0;font-size:15px}.section-head small{color:var(--hc-text-muted);font-size:11px;font-weight:400}.section-head button{border:0;color:var(--hc-text-muted);padding:3px 0}.info-row{display:flex;justify-content:space-between;gap:15px;padding:12px 13px;border:1px solid var(--hc-border);border-bottom:0;background:#10141b}.info-row:first-of-type{border-radius:8px 8px 0 0}.info-row span{color:var(--hc-text-muted)}.info-row strong{text-align:right}.prompt-box{position:relative;padding:12px 13px 8px;border:1px solid var(--hc-border);border-radius:0 0 8px 8px;background:#10141b}.prompt-box label{display:block;color:var(--hc-text-muted);font-size:11px;margin-bottom:7px}.prompt-box textarea{min-height:210px;padding:10px 10px 28px;resize:vertical;line-height:1.65}.prompt-box>span{position:absolute;right:22px;bottom:17px;padding-left:8px;color:var(--hc-text-weak);background:#10141b;font-size:10px}.settings-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:10px;gap:10px}.settings-grid label{display:grid;grid-gap:7px;gap:7px;color:var(--hc-text-muted);font-size:11px}.file-button,.settings-grid select{height:40px;padding:0 11px;text-align:left;font-size:12px}.file-button{cursor:pointer;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.setting-hint{display:grid;align-items:center;font-size:12px}.param-input,.param-textarea textarea,.setting-hint{min-height:40px;padding:0 11px;border:1px solid var(--hc-border);border-radius:8px;color:var(--hc-text);background:#0e1219}.param-input,.param-textarea textarea{width:100%;outline:none}.param-textarea{display:grid;grid-gap:7px;gap:7px;margin-top:12px;color:var(--hc-text-muted);font-size:11px}.param-textarea textarea{min-height:80px;padding:10px 11px;resize:vertical}.reference-row{display:grid;grid-gap:7px;gap:7px;margin-top:12px;color:var(--hc-text-muted);font-size:11px}.provider-unavailable{margin-top:12px;padding:12px;border:1px solid rgba(245,197,66,.34);border-radius:8px;color:var(--hc-warning);background:rgba(245,197,66,.06);line-height:1.5;font-size:12px}.reference-upload{display:grid;grid-gap:8px;gap:8px;padding:10px;border:1px dashed rgba(206,255,53,.36);border-radius:8px;background:rgba(206,255,53,.035)}.reference-upload .file-button{width:-moz-fit-content;width:fit-content;border-color:rgba(206,255,53,.45);color:var(--hc-lime)}.file-selected{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:9px 10px;border:1px solid var(--hc-border);border-radius:7px;background:#0b0f15}.file-selected span{display:grid;grid-gap:3px;gap:3px;min-width:0}.file-selected strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--hc-text);font-size:12px}.file-selected small,.template-audio-hint{color:var(--hc-text-muted);font-size:10px}.file-selected button{border:0;color:#ff969b;background:transparent;cursor:pointer;font-size:11px}.error-message{margin-top:18px;padding:12px;border:1px solid rgba(255,90,95,.4);border-radius:8px;color:#ff969b;background:rgba(255,90,95,.09)}.generate-button{width:100%;margin-top:24px;min-height:52px;border:0;border-radius:8px;background:var(--hc-lime);color:#08090c;font-weight:900;cursor:pointer}.generate-button:disabled{opacity:.5;cursor:not-allowed}.generate-button span{float:right;margin-right:15px;font-weight:500}.credit-note{color:var(--hc-text-weak);text-align:center;font-size:10px}.result-heading{margin-bottom:21px}.result-heading h2{margin:0;font-size:15px}.result-heading span{color:var(--hc-text-weak);font-size:10px}.result-empty{display:grid;place-items:center;min-height:260px;border:1px dashed var(--hc-border);border-radius:8px;color:var(--hc-text-muted);text-align:center}.result-empty strong{color:var(--hc-text)}.result-empty p{margin:0 25px;font-size:11px}.empty-symbol{color:var(--hc-text-weak);font-size:42px}.loading-wave,.result-wave{color:var(--hc-violet);letter-spacing:2px;font-size:22px}.track-result{min-width:0;overflow:hidden;padding:14px;border:1px solid var(--hc-border);border-radius:8px;background:#10141b}.track-result audio{display:block;width:100%;max-width:100%;margin:12px 0}.track-result a{color:var(--hc-lime);font-size:11px}@media (max-width:1100px){.demo-layout{grid-template-columns:240px minmax(480px,1fr)}.result-panel{grid-column:1/-1;border-left:0;border-top:1px solid var(--hc-border)}}@media (max-width:760px){.demo-topbar{padding:0 15px;gap:12px}.demo-mode,.demo-top-actions{display:none}.demo-layout{display:block}.demo-sidebar,.result-panel{border:0;border-bottom:1px solid var(--hc-border)}.demo-workspace{padding:24px 15px}.provider-grid,.settings-grid{grid-template-columns:repeat(2,1fr)}}.track-actions{display:flex;align-items:center;gap:12px}.track-actions button{border:1px solid rgba(206,255,53,.4);border-radius:999px;padding:6px 10px;color:var(--hc-lime);background:transparent;cursor:pointer;font-size:11px}.track-actions button:disabled{opacity:.55;cursor:not-allowed}.save-message{margin-bottom:12px;padding:9px 10px;border:1px solid rgba(82,214,198,.3);border-radius:7px;color:var(--hc-cyan);font-size:11px}.save-hint{color:var(--hc-text-weak);font-size:10px;line-height:1.5}.saved-history{display:grid;grid-gap:10px;gap:10px;margin-top:24px;padding-top:18px;border-top:1px solid var(--hc-border)}.history-heading{display:flex!important;align-items:center;justify-content:space-between}.saved-history h3{margin:0;color:var(--hc-text);font-size:12px}.history-heading>span{color:var(--hc-text-weak);font-size:10px}.history-tabs{display:flex;gap:5px;overflow-x:auto;padding-bottom:2px}.history-tabs button{flex:0 0 auto;border:1px solid var(--hc-border);border-radius:999px;padding:5px 8px;color:var(--hc-text-muted);background:transparent;cursor:pointer;font-size:10px}.history-tabs button.active{border-color:var(--hc-lime);color:#0b0d10;background:var(--hc-lime)}.saved-history article{display:grid;grid-gap:6px;gap:6px;padding:10px;border:1px solid var(--hc-border);border-radius:8px;background:#0e1219}.saved-history article div{display:grid;grid-gap:3px;gap:3px}.saved-history article small{color:var(--hc-text-weak);font-size:10px}.saved-history article audio{width:100%}.saved-history article a{color:var(--hc-lime);font-size:10px}.history-empty{margin:0;padding:12px 0;color:var(--hc-text-weak);font-size:10px}.demo-account-actions{display:flex;align-items:center;gap:12px}.demo-login-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:#08090c;color:var(--hc-text)}.demo-login-card{width:min(100%,410px);display:grid;grid-gap:14px;gap:14px;padding:30px;border:1px solid var(--hc-border);border-radius:14px;background:#10141b;box-shadow:0 24px 80px rgba(0,0,0,.35)}.demo-login-card h1{margin:0;font-size:26px}.demo-login-card p{margin:-4px 0 8px;color:var(--hc-text-muted);font-size:13px;line-height:1.6}.demo-login-card label{display:grid;grid-gap:7px;gap:7px;color:var(--hc-text-muted);font-size:12px}.demo-login-card input{min-height:42px;border:1px solid var(--hc-border);border-radius:8px;padding:0 11px;color:var(--hc-text);background:#0b0f15;outline:none}.demo-login-card>button[type=submit]{min-height:44px;border:0;border-radius:8px;color:#08090c;background:var(--hc-lime);font-weight:800;cursor:pointer}.demo-login-card>button:disabled{opacity:.6;cursor:not-allowed}.demo-login-card small{color:var(--hc-text-weak);font-size:10px;line-height:1.5}.demo-login-error{padding:9px 10px;border:1px solid rgba(255,90,95,.4);border-radius:7px;color:#ff969b;background:rgba(255,90,95,.09);font-size:11px}.demo-login-back{border:0;color:var(--hc-text-muted);background:transparent;cursor:pointer;font-size:11px}.demo-auth-loading{min-height:100vh;display:grid;place-items:center;color:var(--hc-text-muted);background:#08090c;font-size:12px}.demo-login-status{max-width:220px;overflow:hidden;color:var(--hc-lime);font-size:12px;text-overflow:ellipsis;white-space:nowrap}