:root{color-scheme:light;--bg: #efe7d6;--paper: rgba(255, 251, 244, .9);--paper-strong: #fffdf8;--ink: #1f2d2a;--muted: #6a746e;--line: rgba(53, 72, 62, .14);--accent: #184c44;--accent-soft: #deeee8;--warn: #9f5a18;--warn-soft: #fff1df;--shadow: 0 24px 50px rgba(60, 44, 20, .12);--font-ui: "Aptos", "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--font-display: "Cambria", Georgia, "Times New Roman", serif;--font-reading: "Cambria", Georgia, "Times New Roman", serif;font-family:var(--font-ui);background:radial-gradient(circle at top left,rgba(214,131,43,.16),transparent 22%),radial-gradient(circle at top right,rgba(24,76,68,.16),transparent 24%),linear-gradient(180deg,#f8f2e8 0%,var(--bg) 100%);color:var(--ink)}*{box-sizing:border-box}html,body,#root{min-height:100%;margin:0}body{min-height:100vh}button{font:inherit}.app-shell{min-height:100vh;display:grid;grid-template-columns:340px minmax(0,1fr)}.sidebar{background:linear-gradient(180deg,#0c2521fa,#1c3c36fa 58%,#0c2521eb),#173c36;color:#f6f2e9;padding:24px 20px;border-right:1px solid rgba(251,244,230,.12);display:flex;flex-direction:column;gap:18px}.brand-block{display:flex;flex-direction:column;gap:8px}.brand-kicker{font-size:11px;letter-spacing:1.4px;text-transform:uppercase;color:#fbf1dfb8}.brand-block h1{margin:0;font-family:var(--font-display);font-size:32px;line-height:1}.brand-block p{margin:0;color:#f6f2e9cc;line-height:1.7;font-size:14px}.sidebar-section{display:flex;flex-direction:column;gap:10px}.sidebar-section-head{display:flex;align-items:center;justify-content:space-between;gap:10px}.sidebar-section-head h2{margin:0;font-size:14px;letter-spacing:.5px;text-transform:uppercase;color:#fbf1dfbd}.sidebar-section-head span{border-radius:999px;padding:5px 10px;background:#fff2df14;font-size:12px}.paper-list{display:flex;flex-direction:column;gap:9px}.paper-link{width:100%;text-align:left;padding:13px 14px;border-radius:18px;border:1px solid rgba(247,235,214,.14);background:#fffcf70d;color:inherit;display:flex;flex-direction:column;gap:4px;cursor:pointer;transition:transform .14s ease,background .14s ease,border-color .14s ease}.paper-link:hover,.paper-link.active{transform:translateY(-1px);background:#fff8e921;border-color:#efca9380}.paper-year{font-size:12px;font-weight:800;color:#f3c57f;letter-spacing:.6px}.paper-link strong{font-size:15px;line-height:1.45}.paper-link small{color:#f5efe4b8;line-height:1.45}.main-panel{padding:18px;display:flex;flex-direction:column;gap:14px}.hero-card,.card{border:1px solid var(--line);border-radius:26px;background:var(--paper);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.hero-card{padding:18px 20px;display:flex;justify-content:space-between;align-items:flex-start;gap:16px}.hero-kicker{color:var(--accent);font-size:11px;font-weight:800;letter-spacing:.8px;text-transform:uppercase}.hero-copy h2{margin:6px 0 0;font-family:var(--font-display);font-size:30px;line-height:1.08;max-width:780px}.hero-copy p{margin:8px 0 0;color:var(--muted);line-height:1.5;font-size:13px}.hero-badges{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}.hero-badges span,.status-pill{display:inline-flex;align-items:center;border-radius:999px;padding:6px 10px;font-size:11px;font-weight:800;white-space:nowrap}.hero-badges span,.status-pill.ready{background:var(--accent-soft);color:var(--accent);border:1px solid rgba(24,76,68,.14)}.status-pill.waiting{background:var(--warn-soft);color:var(--warn);border:1px solid rgba(159,90,24,.16)}.grid-top,.grid-bottom{display:grid;grid-template-columns:1fr;gap:14px}.grid-bottom{grid-template-columns:repeat(2,minmax(0,1fr))}.card{padding:22px 24px}.card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:16px}.card-head h3{margin:0;font-size:18px}.content-head-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end}.action-btn{border:1px solid rgba(24,76,68,.18);border-radius:999px;padding:9px 14px;background:#fff9f0;color:var(--accent);cursor:pointer;font-weight:700}.action-btn.copied{background:var(--accent-soft)}.prompt-intro{margin-bottom:14px;padding:14px 16px;border-radius:18px;background:#f9f3e6e6;color:#5e655f;line-height:1.7}.question-card{min-width:0;overflow:hidden}.prompt-text{margin:0;white-space:pre-wrap;font-family:var(--font-reading);font-size:21px;line-height:2;color:#24312f}.prompt-text.original-question{overflow-wrap:anywhere}.placeholder-card,.content-card{min-height:250px}.content-text{margin:0;white-space:pre-wrap;font-family:var(--font-reading);font-size:21px;line-height:2;color:#24312f}.content-line{min-height:1.85em}.content-line.empty{min-height:1.2em}.answer-fill{font-weight:800}.placeholder-copy{min-height:150px;padding:18px;border-radius:20px;border:1px dashed rgba(159,90,24,.26);background:linear-gradient(180deg,#fff1dfe6,#fff8eef0);color:#705c48;line-height:1.8;display:flex;align-items:center}.empty-state{min-height:100vh;display:grid;place-items:center;font-size:18px}@media (max-width: 1180px){.app-shell{grid-template-columns:1fr}.sidebar{border-right:0;border-bottom:1px solid rgba(251,244,230,.12)}.main-panel{padding:14px}.grid-top,.grid-bottom{grid-template-columns:1fr}}@media (max-width: 760px){.hero-card{padding:16px;flex-direction:column}.hero-copy h2{font-size:26px}.card{padding:18px}.card-head{flex-direction:column}.content-head-actions,.hero-badges{justify-content:flex-start}}