:root {
  --canvas:#f4f0e7; --surface:#fbf9f4; --raised:#fff; --ink:#25231e; --muted:#716c62;
  --line:#ddd6c9; --line-strong:#bdb3a3; --accent:#d64b36; --accent-dark:#b83c2b;
  --accent-soft:#f7dfd9; --success:#35725a; --focus:#245fa8; --shadow:0 18px 48px rgba(63,53,39,.09);
  --r-sm:7px; --r-md:14px; --r-lg:22px;
  font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*{box-sizing:border-box} body{margin:0;min-width:320px;min-height:100vh;background:var(--canvas);color:var(--ink)}
button,input,textarea,select{font:inherit} button{color:inherit} :focus-visible{outline:3px solid rgba(36,95,168,.28);outline-offset:2px}
.sr-only{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
.skip-link{position:fixed;z-index:50;top:8px;left:8px;padding:10px;background:var(--ink);color:#fff;transform:translateY(-150%)}.skip-link:focus{transform:none}
.topbar{height:70px;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:0 26px;border-bottom:1px solid var(--line);background:rgba(244,240,231,.96)}
.brand{display:flex;align-items:center;gap:11px}.brand-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:50%;background:var(--ink);color:#fff1dd}.brand strong,.brand small{display:block}.brand strong{font-family:Georgia,"Songti SC",serif;font-size:17px}.brand small{margin-top:2px;color:var(--muted);font-size:10px;letter-spacing:.08em}
.top-actions{display:flex;align-items:center;gap:8px}.save-state{margin-right:5px;color:var(--muted);font-size:11px}.save-state i{display:inline-block;width:7px;height:7px;margin-right:5px;border-radius:50%;background:var(--success)}
.button{min-height:40px;padding:0 15px;border:0;border-radius:var(--r-sm);cursor:pointer;font-size:13px;font-weight:750;transition:150ms ease}.button:hover{transform:translateY(-1px)}.button.primary{background:var(--accent);color:#fff}.button.primary:hover{background:var(--accent-dark)}.button.secondary{border:1px solid var(--line-strong);background:var(--raised)}.button.secondary:hover{background:#eee9df}.button.full{width:100%;margin-top:8px}
.shell{display:grid;grid-template-columns:250px minmax(0,1fr);height:calc(100vh - 70px)}
.side-panel{display:flex;flex-direction:column;padding:28px 16px 20px;border-right:1px solid var(--line);background:rgba(251,249,244,.6)}
.eyebrow{margin:0 0 8px;color:var(--muted);font-size:10px;font-weight:800;letter-spacing:.14em;text-transform:uppercase}
.project-name{width:100%;padding:0 0 8px;border:0;border-bottom:1px solid var(--line);outline:0;background:transparent;font-family:Georgia,"Songti SC",serif;font-size:21px;font-weight:600}.project-name:focus{border-color:var(--accent)}
.steps{display:grid;gap:5px;margin-top:30px}.step{display:grid;grid-template-columns:28px 1fr;gap:10px;align-items:center;min-height:62px;padding:9px 11px;border:0;border-radius:var(--r-sm);background:transparent;color:var(--muted);cursor:pointer;text-align:left}.step:hover{background:#eee8dd;color:var(--ink)}.step.is-active{background:var(--ink);color:#fff}.step>b{font-family:Georgia,serif;font-size:11px;opacity:.55}.step span,.step strong,.step small{display:block}.step strong{font-size:12px}.step small{margin-top:3px;font-size:9px;opacity:.7}
.progress-card{margin-top:auto;padding:15px;border:1px solid var(--line);border-radius:var(--r-md);background:rgba(255,255,255,.5)}.progress-card>div:first-child{display:flex;align-items:end;justify-content:space-between;gap:10px}.progress-card span{color:var(--muted);font-size:9px}.progress-card strong{font-family:Georgia,serif;font-size:20px}.progress-bar{height:4px;margin:11px 0 8px;border-radius:4px;background:var(--line)}.progress-bar i{display:block;width:0;height:100%;border-radius:inherit;background:var(--accent);transition:width 200ms}.progress-card p{margin:0;color:var(--muted);font-size:9px;line-height:1.5}
.main-panel{overflow:auto;background:var(--raised)}.panel{display:none;max-width:1220px;margin:0 auto;padding:55px clamp(30px,6vw,84px) 90px}.panel.is-active{display:block}.panel-heading{margin-bottom:34px}.panel-heading.split{display:flex;align-items:end;justify-content:space-between;gap:24px}.panel-heading h1{margin:0;font-family:Georgia,"Songti SC",serif;font-size:34px;font-weight:600;letter-spacing:-.02em}.panel-heading>p:last-child,.panel-heading>div>p:last-child{margin:9px 0 0;color:var(--muted);font-size:13px;line-height:1.7}
.topic-layout{display:grid;grid-template-columns:minmax(0,1fr) 285px;gap:42px;align-items:start}.type-picker{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin:0 0 28px;padding:0;border:0}.type-picker legend{grid-column:1/-1;margin-bottom:8px;color:var(--muted);font-size:11px;font-weight:750}.type-card{display:grid;grid-template-columns:32px 1fr;column-gap:9px;min-height:78px;padding:12px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);cursor:pointer;text-align:left}.type-card:hover{border-color:var(--line-strong)}.type-card.is-active{border-color:var(--accent);background:var(--accent-soft)}.type-card>span{grid-row:1/3;display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--ink);color:#fff;font-family:Georgia,"Songti SC",serif}.type-card strong{font-size:11px}.type-card small{margin-top:3px;color:var(--muted);font-size:9px;line-height:1.4}
.field{position:relative;display:block;margin-bottom:22px}.field>span{display:block;margin-bottom:8px;color:var(--muted);font-size:11px;font-weight:750}.field input,.field textarea,.field select{width:100%;border:1px solid var(--line);border-radius:var(--r-sm);outline:0;background:var(--surface);color:var(--ink)}.field input,.field select{height:43px;padding:0 12px}.field textarea{display:block;padding:11px 12px;resize:vertical;line-height:1.65}.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--focus);box-shadow:0 0 0 3px rgba(36,95,168,.1)}.two-columns,.three-columns{display:grid;gap:14px}.two-columns{grid-template-columns:1fr 1fr}.three-columns{grid-template-columns:repeat(3,1fr)}
.source-action{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-top:-8px;padding:14px;border:1px solid var(--line);border-left:3px solid var(--accent);background:var(--surface)}.source-action strong,.source-action small{display:block}.source-action strong{font-size:11px}.source-action small{margin-top:4px;color:var(--muted);font-size:9px;line-height:1.5}.source-action .button{flex:0 0 auto}
.needs-card,.check-card{position:sticky;top:28px;padding:22px;border:1px solid var(--line);border-top:3px solid var(--ink);background:var(--surface)}.needs-card h2{margin:0 0 15px;font-family:Georgia,"Songti SC",serif;font-size:18px}.need{display:grid;grid-template-columns:18px 1fr;gap:9px;padding:9px 0;border-bottom:1px solid var(--line)}.need i{display:grid;place-items:center;width:18px;height:18px;border:1px solid var(--line-strong);border-radius:50%;color:transparent;font-style:normal;font-size:10px}.need.done i{border-color:var(--success);background:var(--success);color:#fff}.need strong,.need small{display:block}.need strong{font-size:11px}.need small{margin-top:3px;color:var(--muted);font-size:9px;line-height:1.45}.needs-note{margin:15px 0;color:var(--muted);font-size:10px;line-height:1.6}
.editor-layout{display:grid;grid-template-columns:minmax(0,1fr) 245px;gap:42px;align-items:start}.field.editorial>span{color:var(--ink);font-family:Georgia,"Songti SC",serif;font-size:16px}.field.editorial textarea{background:#fff}.body-field textarea{min-height:350px}.field>small{position:absolute;right:9px;bottom:7px;padding:2px 5px;background:var(--surface);color:var(--muted);font-size:9px}.check-card label{display:flex;align-items:center;gap:8px;padding:9px 0;font-size:11px}.check-card input{width:16px;height:16px;accent-color:var(--accent)}.check-card hr{margin:16px 0;border:0;border-top:1px solid var(--line)}
.image-layout{display:grid;grid-template-columns:minmax(0,1fr) 285px;gap:42px;align-items:start}.preview-card{padding:17px;border:1px solid var(--line);background:var(--surface)}.preview{aspect-ratio:3/4;display:flex;flex-direction:column;justify-content:space-between;padding:23px;background:var(--ink);color:#fff}.preview>span{color:#f0a393;font-family:Georgia,serif;font-size:27px}.preview small{display:block;margin-bottom:9px;color:#f0a393;font-size:9px;font-weight:800;letter-spacing:.1em}.preview strong{display:block;font-family:Georgia,"Songti SC",serif;font-size:25px;line-height:1.25}.preview i{color:rgba(255,255,255,.5);font-size:9px;font-style:normal}.preview-card>p{color:var(--muted);font-size:10px;line-height:1.6}
.toast{position:fixed;right:24px;bottom:24px;z-index:30;max-width:360px;padding:12px 16px;border-radius:var(--r-sm);background:var(--ink);color:#fff;box-shadow:var(--shadow);font-size:12px;opacity:0;pointer-events:none;transform:translateY(8px);transition:170ms}.toast.show{opacity:1;transform:none}
@media(max-width:960px){.topic-layout,.editor-layout,.image-layout{grid-template-columns:1fr}.needs-card,.check-card{position:static}.preview-card{max-width:340px}}
@media(max-width:720px){.topbar{height:auto;min-height:64px;padding:10px 14px}.brand small,.save-state,.top-actions>.button.secondary{display:none}.shell{display:block;height:auto}.side-panel{padding:18px 12px;border-right:0;border-bottom:1px solid var(--line)}.side-panel>div:first-child,.progress-card{display:none}.steps{display:flex;margin:0}.step{flex:1;min-height:48px;grid-template-columns:auto 1fr}.step small{display:none}.panel{padding:36px 18px 70px}.panel-heading.split,.source-action{display:block}.panel-heading.split .button,.source-action .button{margin-top:18px}.type-picker,.two-columns,.three-columns{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important}}