@layer theme{:root,:host{--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring:where(:not(iframe)){outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.min-h-screen{min-height:100vh}}:root{--red:#ff2442;--ink:#171717;--muted:#737373;--line:#e9e7e3;--paper:#fbfaf7;--white:#fff}*{box-sizing:border-box}body{color:var(--ink);background:var(--paper);letter-spacing:0;margin:0;font-family:Microsoft YaHei UI,PingFang SC,system-ui,sans-serif}button,textarea{font:inherit}button{cursor:pointer}.topbar{border-bottom:1px solid var(--line);z-index:20;background:#fbfaf7f5;justify-content:space-between;align-items:center;height:68px;padding:0 30px;display:flex;position:sticky;top:0}.brand{align-items:center;gap:11px;font-size:17px;font-weight:800;display:flex}.brand-mark{background:var(--red);color:#fff;border-radius:8px 8px 8px 2px;place-items:center;width:34px;height:34px;font-size:17px;display:grid}.status{color:var(--muted);border:1px solid var(--line);background:#fff;border-radius:20px;align-items:center;gap:8px;padding:7px 11px;font-size:12px;display:flex}.status span{background:#20b26b;border-radius:50%;width:7px;height:7px;box-shadow:0 0 0 3px #dff5e9}.workspace{grid-template-columns:340px minmax(420px,1fr) 250px;max-width:1480px;min-height:calc(100vh - 68px);margin:auto;display:grid}.brief-panel,.creation-panel,.history-panel{padding:36px 28px}.brief-panel{border-right:1px solid var(--line)}.history-panel{border-left:1px solid var(--line);background:#f5f3ef}.step-label{color:var(--red);letter-spacing:.12em;text-transform:uppercase;margin-bottom:11px;font-size:11px;font-weight:800}h1{margin:0 0 14px;font-size:36px;font-weight:900;line-height:1.22}h1 em{color:var(--red);font-style:normal}.intro{color:var(--muted);margin:0 0 32px;font-size:13px;line-height:1.8}label{margin:20px 0 9px;font-size:13px;font-weight:800;display:block}textarea{resize:vertical;background:#fff;border:1px solid #d8d5cf;border-radius:6px;outline:none;width:100%;min-height:142px;padding:14px;line-height:1.7;transition:all .2s}textarea:focus{border-color:var(--ink);box-shadow:0 0 0 3px #1717170f}textarea::placeholder{color:#aaa6a0}.counter{text-align:right;color:#aaa;margin-top:5px;font-size:11px}.tone-grid{grid-template-columns:1fr 1fr;gap:8px;display:grid}.tone-grid button{border:1px solid var(--line);color:#555;background:#fff;border-radius:5px;height:37px;font-size:12px}.tone-grid button.active{border-color:var(--red);color:var(--red);background:#fff3f5;font-weight:800}.primary{background:var(--red);color:#fff;border:0;border-radius:6px;justify-content:center;align-items:center;gap:8px;width:100%;height:48px;margin-top:24px;font-weight:800;display:flex;box-shadow:0 8px 20px #ff24422e}.primary:hover{background:#e91d39;transform:translateY(-1px)}button:disabled{cursor:not-allowed;opacity:.65}.error{color:#b42318;word-break:break-word;background:#fff0ee;border-radius:5px;margin-top:12px;padding:10px;font-size:12px;line-height:1.5}.creation-panel{padding-left:44px;padding-right:44px}.section-head,.editor-head{justify-content:space-between;align-items:flex-start;gap:20px;display:flex}h2{margin:0;font-size:24px;line-height:1.4}.ghost,.icon-btn{border:1px solid var(--line);color:#555;background:#fff;border-radius:5px;justify-content:center;align-items:center;gap:6px;display:flex}.ghost{padding:8px 11px;font-size:12px}.icon-btn{flex:none;width:36px;height:36px}.empty-state{text-align:center;color:#b5b1aa;flex-direction:column;justify-content:center;align-items:center;min-height:440px;display:flex}.empty-state svg{color:var(--red);opacity:.45;margin-bottom:18px}.empty-state strong{color:#64615c;margin-bottom:8px}.empty-state span{max-width:330px;font-size:13px;line-height:1.7}.title-list{border-top:1px solid var(--line);margin-top:24px}.title-option{text-align:left;border:0;border-bottom:1px solid var(--line);background:0 0;grid-template-columns:45px 1fr 34px;align-items:center;width:100%;min-height:104px;padding:18px 10px;transition:all .18s;display:grid}.title-option:hover{background:#fff;padding-left:16px}.title-option.selected{background:#fff2f4}.title-number{color:#aaa;align-self:start;padding-top:4px;font:700 11px/1 ui-monospace,monospace}.title-body{flex-wrap:wrap;align-items:center;gap:7px 9px;display:flex}.style-tag{color:var(--red);border:1px solid #ffc5cd;border-radius:3px;padding:3px 5px;font-size:10px}.title-body strong{width:100%;font-size:16px;line-height:1.5}.title-body small{color:#999}.pick{color:#aaa;border-radius:50%;place-items:center;width:28px;height:28px;display:grid}.selected .pick{color:#fff;background:var(--red)}.copy-editor{border-top:3px solid var(--ink);margin-top:38px;padding-top:28px}.copy-editor h2{max-width:600px;font-size:20px}.writing{color:#888;flex-direction:column;justify-content:center;align-items:center;gap:12px;min-height:220px;font-size:13px;display:flex}.content-text{border-left:3px solid var(--red);white-space:pre-wrap;background:#fff;margin-top:22px;padding:22px;font-size:14px;line-height:1.9}.visual-studio{border-top:3px solid var(--ink);margin-top:42px;padding-top:30px}.visual-intro p{color:var(--muted);margin:8px 0 16px;font-size:13px}.render-spec{flex-wrap:wrap;gap:8px;display:flex}.render-spec span{border:1px solid var(--line);color:#888;background:#fff;border-radius:4px;padding:7px 9px;font-size:10px}.render-spec b{color:var(--ink);margin-left:4px}.image-tool{border-top:1px solid var(--line);margin-top:30px;padding-top:24px}.image-tool-head>div{grid-template-columns:28px 1fr;align-items:center;gap:2px 8px;display:grid}.tool-index{background:var(--ink);color:#fff;border-radius:3px;grid-row:1/3;place-items:center;width:25px;height:25px;font-size:11px;font-weight:900;display:grid}.image-tool-head strong{font-size:15px}.image-tool-head small{color:#999;font-size:11px}.style-picker{grid-template-columns:repeat(4,1fr);gap:7px;margin-top:16px;display:grid}.style-picker button{text-align:left;border:1px solid var(--line);background:#fff;border-radius:5px;min-height:62px;padding:9px}.style-picker button strong,.style-picker button span{display:block}.style-picker button strong{margin-bottom:5px;font-size:11px}.style-picker button span{color:#999;font-size:9px}.style-picker button.active{border-color:var(--red);color:var(--red);box-shadow:inset 0 0 0 1px var(--red);background:#fff3f5}.image-action{background:var(--red);color:#fff;border:0;border-radius:5px;justify-content:center;align-items:center;gap:7px;min-width:220px;height:42px;margin-top:13px;padding:0 16px;font-size:12px;font-weight:800;display:flex}.image-action.secondary{background:var(--ink)}.image-gallery{align-items:start;gap:12px;margin-top:18px;display:grid}.cover-gallery{grid-template-columns:minmax(0,4fr) minmax(0,3fr)}.body-gallery{grid-template-columns:minmax(180px,42%)}.generated-image{border:1px solid var(--line);background:#eee;border-radius:5px;margin:0;overflow:hidden}.generated-image img{object-fit:cover;width:100%;height:auto;display:block}.generated-image figcaption{color:#999;background:#fff;justify-content:space-between;align-items:center;gap:8px;min-height:38px;padding:7px 9px;font-size:9px;display:flex}.generated-image figcaption b{color:var(--ink)}.generated-image figcaption a{width:26px;height:26px;color:var(--ink);border:1px solid var(--line);border-radius:4px;place-items:center;display:grid}.history-title{align-items:center;gap:8px;margin-bottom:22px;font-size:13px;font-weight:800;display:flex}.history-title b{color:#999;margin-left:auto;font-size:11px}.history-empty{color:#aaa;padding:30px 4px;font-size:12px;line-height:1.7}.history-item{text-align:left;background:0 0;border:0;border-top:1px solid #dedbd5;width:100%;padding:15px 2px}.history-item strong{-webkit-line-clamp:2;-webkit-box-orient:vertical;margin-bottom:6px;font-size:12px;line-height:1.55;display:-webkit-box;overflow:hidden}.history-item span{color:#999;text-overflow:ellipsis;white-space:nowrap;font-size:10px;display:block;overflow:hidden}.spin{animation:1s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width:1000px){.workspace{grid-template-columns:310px 1fr}.history-panel{display:none}}@media (max-width:700px){.topbar{height:60px;padding:0 16px}.status{display:none}.workspace{display:block}.brief-panel{border-right:0;border-bottom:1px solid var(--line);padding:28px 20px}.creation-panel{padding:28px 20px 60px}h1{font-size:30px}.empty-state{min-height:280px}.title-option{grid-template-columns:38px 1fr 30px}.style-picker{grid-template-columns:1fr 1fr}.cover-gallery{grid-template-columns:1fr}.body-gallery{grid-template-columns:minmax(0,1fr)}.image-action{width:100%}}