:root{color-scheme:light;--bg: #f3ecdf;--ink: #13212f;--muted: #5f6d77;--line: rgba(19, 33, 47, .12);--panel: rgba(255, 255, 255, .8);--panel-strong: #fffdf8;--accent: #0d6373;--accent-soft: rgba(13, 99, 115, .12);--signal: #c86735;--shadow: 0 28px 80px rgba(19, 33, 47, .1);font-family:Avenir Next,PingFang SC,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0;min-height:100vh;color:var(--ink);background:radial-gradient(circle at top left,rgba(200,103,53,.16),transparent 26%),radial-gradient(circle at top right,rgba(13,99,115,.16),transparent 26%),linear-gradient(180deg,#f7f1e7,#efe4d3)}button,input,textarea,select{font:inherit}.page-shell{width:min(1320px,calc(100vw - 32px));margin:0 auto;padding:28px 0 80px}.hero-band,.spotlight-panel,.history-panel,.composer-panel,.guide-panel{border:1px solid var(--line);border-radius:28px;background:var(--panel);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px)}.hero-band{display:grid;grid-template-columns:1.45fr .95fr;gap:24px;padding:28px}.eyebrow,.guide-label{margin:0 0 10px;color:var(--accent);font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.16em}.hero-band h1{margin:0;font-size:clamp(40px,7vw,74px);line-height:.94}.hero-copy{max-width:760px;margin:18px 0 0;color:var(--muted);font-size:18px;line-height:1.75}.stats-cluster{display:grid;gap:16px}.stats-cluster article{padding:18px;border-radius:22px;border:1px solid var(--line);background:#ffffffb8}.stats-cluster span{display:block;color:var(--muted);font-size:13px}.stats-cluster strong{display:block;margin-top:8px;font-size:26px}.studio-layout{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(320px,.7fr);gap:20px;margin-top:24px}.composer-panel,.guide-panel,.spotlight-panel,.history-panel{padding:22px}.panel-head h2,.panel-head p,.guide-block h3,.guide-block p{margin:0}.panel-head{display:grid;gap:8px;margin-bottom:18px}.panel-head p,.guide-block p,.history-card p,.spotlight-summary,.empty-panel{color:var(--muted);line-height:1.65}.field-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.field{display:grid;gap:8px}.field-large{grid-column:1 / -1}.field span{font-size:13px;color:var(--muted)}.field input,.field textarea,.field select{width:100%;padding:14px 16px;border:1px solid var(--line);border-radius:16px;background:#ffffffd1;color:var(--ink)}.field textarea{resize:vertical;min-height:120px}.upload-bar{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:center;margin-top:16px}.upload-button{position:relative;display:inline-flex;align-items:center;justify-content:center;padding:14px 18px;border-radius:16px;background:var(--accent-soft);color:var(--accent);font-weight:700;cursor:pointer;overflow:hidden}.upload-button input{position:absolute;inset:0;opacity:0;cursor:pointer}.upload-meta{display:grid;gap:6px}.upload-meta strong{font-size:15px}.upload-meta span{color:var(--muted);font-size:13px}.error-banner{margin:16px 0 0;padding:12px 14px;border-radius:14px;background:#c867351f;color:#9b441f}.submit-button{margin-top:18px;padding:16px 20px;border:none;border-radius:18px;background:linear-gradient(135deg,var(--ink),#244357);color:#fff;font-size:16px;font-weight:700;cursor:pointer}.submit-button:disabled{opacity:.76;cursor:wait}.guide-panel{display:grid;gap:14px;align-content:start}.guide-block{display:grid;gap:10px;padding:18px;border-radius:22px;border:1px solid var(--line);background:#ffffffc2}.guide-block-contrast{background:linear-gradient(135deg,#13212ff5,#0d6373e6);color:#fff}.guide-block-contrast .guide-label,.guide-block-contrast p{color:#ffffffd1}.guide-list{margin:0;padding-left:18px;color:var(--muted)}.token-list{display:flex;flex-wrap:wrap;gap:8px}.token-list span{padding:7px 11px;border-radius:999px;background:#ffffff24;border:1px solid rgba(255,255,255,.16);font-size:12px}.spotlight-panel,.history-panel{margin-top:24px}.spotlight-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:18px;align-items:start}.spotlight-copy{display:grid;gap:12px}.spotlight-copy h3{margin:0;font-size:34px}.excerpt-block{margin:0;padding:16px;border-radius:18px;border:1px solid var(--line);background:#fffc;white-space:pre-wrap;color:var(--muted);line-height:1.65}.spotlight-image,.history-thumb{width:100%;border-radius:22px;border:1px solid var(--line);background:#fff;object-fit:cover;aspect-ratio:16 / 9}.placeholder,.empty-panel{display:grid;place-items:center;min-height:220px;border-radius:22px;border:1px dashed var(--line);background:#ffffff9e}.history-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:16px}.history-card{display:grid;gap:12px;padding:16px;text-align:left;border:1px solid var(--line);border-radius:22px;background:var(--panel-strong);cursor:pointer}.history-card h3{margin:0;font-size:22px}.card-topline{display:flex;justify-content:space-between;gap:8px;font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}.compact span{background:var(--accent-soft);border-color:transparent;color:var(--accent)}@media(max-width:1080px){.hero-band,.studio-layout,.spotlight-grid{grid-template-columns:1fr}}@media(max-width:760px){.page-shell{width:min(100vw - 20px,1320px)}.field-grid,.upload-bar{grid-template-columns:1fr}}