/* ============ 内容创作工作台 · 设计系统（对照 ROTK 提取） ============ */
:root {
  color-scheme: dark;
  --bg: #080c17; --panel: #101625; --panel-2: #151c2e; --line: #252d43;
  --text: #f5f7fb; --muted: #8e98ad; --soft: #b9c1d1;
  --red: #ff536d; --cyan: #58e1e8; --amber: #ffbd59; --green: #66dfaa; --blue: #7398ff;
  --field: #0a0f1c; --hover: #182136; --selected: #202941;
  --sidebar-start: #0d1322; --sidebar-end: #090d18; --brand: #c93651;
  --radius: 16px; --shadow: 0 16px 48px rgba(0,0,0,.24);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg); color: var(--text);
  font: 14px/1.6 -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--cyan); text-decoration: none; }
button, input, select, textarea { font-family: inherit; }
h1,h2,h3,h4 { margin: 0; font-weight: 650; }
.muted { color: var(--muted); }
.subtle { color: var(--muted); font-size: 12.5px; margin: 6px 0 0; }
.hidden { display: none !important; }

/* ============ 布局 ============ */
.app { min-height: 100vh; display: grid; grid-template-columns: 248px minmax(0,1fr); }
.sidebar {
  position: sticky; top: 0; height: 100vh; padding: 22px 12px 14px;
  border-right: 1px solid var(--line);
  background: linear-gradient(180deg, var(--sidebar-start) 0%, var(--sidebar-end) 100%);
  display: flex; flex-direction: column; gap: 4px; overflow-y: auto; z-index: 20;
  scrollbar-width: thin; scrollbar-color: #2a3550 transparent;
}
.sidebar::-webkit-scrollbar { width: 6px; }
.sidebar::-webkit-scrollbar-thumb { background: #2a3550; border-radius: 6px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.brand { display: flex; align-items: center; gap: 11px; padding: 0 8px 14px; font-weight: 760; letter-spacing: .02em; }
.brand-mark {
  width: 42px; height: 42px; border-radius: 50%; display: grid; place-items: center; flex: none;
  background: radial-gradient(circle at 30% 25%, #2a3350, #101625);
  border: 1px solid #2f3a55; box-shadow: 0 8px 24px rgba(88,225,232,.18);
  font-size: 17px; font-weight: 800; color: var(--cyan); letter-spacing: -.5px;
}
.brand small { display: block; font-size: 11px; font-weight: 500; color: var(--muted); letter-spacing: .04em; margin-top: 2px; }
.seg { display: flex; gap: 4px; background: #0b111f; border: 1px solid var(--line); border-radius: 12px; padding: 4px; margin: 0 4px 10px; }
.seg button {
  flex: 1; border: 0; background: transparent; color: var(--muted); padding: 6px 0;
  border-radius: 9px; font-size: 12.5px; cursor: pointer; transition: .15s;
}
.seg button.active { background: var(--selected); color: var(--text); font-weight: 600; }
.nav { display: flex; flex-direction: column; gap: 1px; }
.nav button {
  display: flex; align-items: center; gap: 10px; width: 100%; text-align: left;
  background: transparent; border: 0; color: var(--soft); padding: 8px 12px;
  border-radius: 10px; font-size: 13.5px; cursor: pointer; transition: .15s; position: relative;
}
.nav button:hover { background: var(--hover); color: var(--text); }
.nav button.active { background: var(--selected); color: #fff; font-weight: 600; }
.nav button.active::before {
  content: ""; position: absolute; left: 0; top: 9px; bottom: 9px; width: 3px;
  border-radius: 3px; background: var(--red); box-shadow: 0 0 12px var(--red);
}
.nav button svg { width: 17px; height: 17px; flex: none; opacity: .82; }
.nav button.active svg { opacity: 1; color: var(--cyan); }
.nav-tools-heading { font-size: 11px; color: #5d6779; padding: 14px 12px 5px; letter-spacing: .12em; }
.side-foot { margin-top: auto; padding: 12px 10px 2px; border-top: 1px solid var(--line); font-size: 11.5px; color: var(--muted); display: flex; flex-direction: column; gap: 5px; }

.main { min-width: 0; padding: 26px 32px 60px; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
.topbar .who { display: flex; align-items: center; gap: 10px; font-size: 12.5px; color: var(--muted); }
.avatar { width: 30px; height: 30px; border-radius: 50%; background: linear-gradient(135deg, var(--brand), #6a2a49); display: grid; place-items: center; color: #fff; font-size: 12px; font-weight: 700; }

.page-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.page-head h2 { font-size: 26px; line-height: 1.35; letter-spacing: -.2px; }
.page-head p { margin: 6px 0 0; color: var(--muted); font-size: 13px; }
.heading-dot { color: var(--red); }

/* ============ 通用组件 ============ */
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px 20px; box-shadow: var(--shadow);
}
.card + .card { margin-top: 14px; }
.card h3 { font-size: 15.5px; margin-bottom: 4px; }
.grid { display: grid; gap: 14px; }
.g2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0,1fr)); }
.row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.spacer { flex: 1; }

.btn {
  border: 1px solid transparent; background: var(--brand); color: #fff; padding: 9px 16px;
  border-radius: 11px; font-size: 13px; font-weight: 600; cursor: pointer; transition: .15s;
  display: inline-flex; align-items: center; gap: 7px;
}
.btn:hover { background: #d93c57; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.ghost { background: transparent; border-color: var(--line); color: var(--soft); }
.btn.ghost:hover { background: var(--hover); color: var(--text); }
.btn.soft { background: var(--panel-2); border-color: var(--line); color: var(--text); }
.btn.soft:hover { background: var(--hover); }
.btn.cyan { background: transparent; border-color: rgba(88,225,232,.4); color: var(--cyan); }
.btn.cyan:hover { background: rgba(88,225,232,.1); }
.btn.sm { padding: 6px 11px; font-size: 12px; border-radius: 9px; }
.btn.danger { background: transparent; border-color: rgba(255,83,109,.4); color: var(--red); }
.btn.danger:hover { background: rgba(255,83,109,.12); }

label.fl { display: block; font-size: 12px; color: var(--muted); margin-bottom: 7px; letter-spacing: .02em; }
input[type=text], input[type=password], input[type=number], input[type=url], input[type=datetime-local], select, textarea {
  width: 100%; background: var(--field); border: 1px solid var(--line); color: var(--text);
  border-radius: 11px; padding: 10px 12px; font-size: 13.5px; outline: none; transition: .15s;
}
input:focus, select:focus, textarea:focus { border-color: #3a4a72; box-shadow: 0 0 0 3px rgba(115,152,255,.12); }
textarea { resize: vertical; line-height: 1.75; }
.field { margin-bottom: 14px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }

.chip {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px;
  font-size: 11.5px; border: 1px solid var(--line); color: var(--soft); background: var(--panel-2);
}
.chip.cy { color: var(--cyan); border-color: rgba(88,225,232,.32); background: rgba(88,225,232,.08); }
.chip.rd { color: var(--red); border-color: rgba(255,83,109,.32); background: rgba(255,83,109,.08); }
.chip.gn { color: var(--green); border-color: rgba(102,223,170,.32); background: rgba(102,223,170,.08); }
.chip.am { color: var(--amber); border-color: rgba(255,189,89,.32); background: rgba(255,189,89,.08); }

.plat-tabs { display: flex; gap: 8px; flex-wrap: wrap; }
.plat-tabs button {
  border: 1px solid var(--line); background: var(--panel-2); color: var(--soft);
  padding: 8px 14px; border-radius: 11px; font-size: 12.5px; cursor: pointer; transition: .15s;
}
.plat-tabs button.active { border-color: rgba(88,225,232,.45); color: var(--cyan); background: rgba(88,225,232,.09); font-weight: 600; }

.kpi { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; }
.kpi .lb { font-size: 12px; color: var(--muted); display: flex; align-items: center; gap: 7px; }
.kpi .vl { font-size: 27px; font-weight: 720; margin-top: 8px; letter-spacing: -.4px; font-variant-numeric: tabular-nums; }
.kpi .ft { font-size: 11.5px; color: var(--muted); margin-top: 4px; }

.list { display: flex; flex-direction: column; gap: 10px; }
.item {
  display: flex; gap: 14px; align-items: center; padding: 13px 15px; border-radius: 13px;
  border: 1px solid var(--line); background: var(--panel-2); transition: .15s;
}
.item:hover { border-color: #31405f; background: #182136; }
.item .main-col { min-width: 0; flex: 1; }
.item .ti { font-size: 13.5px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.item .meta { font-size: 11.5px; color: var(--muted); margin-top: 4px; display: flex; gap: 10px; flex-wrap: wrap; }
.item .acts { display: flex; gap: 7px; flex-shrink: 0; }

.empty { text-align: center; padding: 40px 20px; color: var(--muted); font-size: 13px; }
.empty b { display: block; color: var(--soft); font-size: 14px; margin-bottom: 6px; font-weight: 600; }

.bar { height: 6px; background: #0b111f; border-radius: 999px; overflow: hidden; margin-top: 8px; }
.bar i { display: block; height: 100%; border-radius: 999px; background: linear-gradient(90deg, var(--cyan), var(--blue)); }

/* 认证页 */
.auth-wrap { min-height: 100vh; display: grid; place-items: center; padding: 24px;
  background: radial-gradient(900px 500px at 50% -10%, #16203a 0%, var(--bg) 60%); }
.auth { width: 100%; max-width: 400px; background: var(--panel); border: 1px solid var(--line);
  border-radius: 22px; padding: 32px 30px; box-shadow: 0 30px 80px rgba(0,0,0,.5); }
.auth .brand { padding: 0 0 8px; }
.auth h1 { font-size: 21px; margin: 10px 0 6px; }
.auth .sub { color: var(--muted); font-size: 12.5px; margin-bottom: 22px; }
.auth .tabs { display: flex; gap: 4px; background: #0b111f; border: 1px solid var(--line); border-radius: 12px; padding: 4px; margin-bottom: 20px; }
.auth .tabs button { flex: 1; border: 0; background: transparent; color: var(--muted); padding: 8px 0; border-radius: 9px; font-size: 12.5px; cursor: pointer; }
.auth .tabs button.active { background: var(--selected); color: var(--text); font-weight: 600; }
.auth .btn { width: 100%; justify-content: center; margin-top: 6px; }
.auth .tip { margin-top: 16px; font-size: 11.5px; color: #5d6779; text-align: center; line-height: 1.7; }

/* 弹窗 */
.mask { position: fixed; inset: 0; background: rgba(4,7,14,.72); backdrop-filter: blur(4px); display: grid; place-items: center; z-index: 100; padding: 20px; }
.modal { width: 100%; max-width: 560px; background: var(--panel); border: 1px solid var(--line); border-radius: 18px; padding: 24px; max-height: 86vh; overflow-y: auto; box-shadow: 0 30px 80px rgba(0,0,0,.6); }
.modal h3 { font-size: 17px; margin-bottom: 4px; }
.modal .mh { margin-bottom: 18px; }
.modal .mf { display: flex; justify-content: flex-end; gap: 10px; margin-top: 20px; }

/* 提示 */
#toast { position: fixed; left: 50%; bottom: 32px; transform: translateX(-50%); z-index: 200; display: flex; flex-direction: column; gap: 8px; align-items: center; pointer-events: none; }
#toast .t { background: #1b2438; border: 1px solid #33405e; color: var(--text); padding: 10px 18px; border-radius: 11px; font-size: 13px; box-shadow: 0 12px 32px rgba(0,0,0,.4); animation: tin .22s ease; max-width: min(600px, 88vw); line-height: 1.6; text-align: left; pointer-events: auto; cursor: pointer; }
#toast .t.err { border-color: rgba(255,83,109,.5); color: #ffc2cb; }
#toast .t.ok { border-color: rgba(102,223,170,.45); color: #b8f5d8; }
@keyframes tin { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.spin { display: inline-block; width: 13px; height: 13px; border: 2px solid rgba(255,255,255,.25); border-top-color: #fff; border-radius: 50%; animation: sp .7s linear infinite; }
@keyframes sp { to { transform: rotate(360deg); } }

/* 编辑器 */
.studio { display: grid; grid-template-columns: minmax(0,1fr) 340px; gap: 16px; align-items: start; }
.studio .editor textarea { min-height: 260px; }
.title-cands { display: flex; flex-direction: column; gap: 8px; margin-top: 10px; }
.title-cands button {
  text-align: left; background: var(--panel-2); border: 1px solid var(--line); color: var(--soft);
  padding: 9px 12px; border-radius: 10px; font-size: 12.5px; cursor: pointer; transition: .15s;
}
.title-cands button:hover { border-color: rgba(88,225,232,.4); color: var(--text); background: var(--hover); }
.check-list { display: flex; flex-direction: column; gap: 8px; margin-top: 10px; }
.check-list li { list-style: none; font-size: 12.5px; color: var(--soft); display: flex; gap: 8px; }
.check-list li::before { content: "•"; color: var(--amber); }
ul.plain { margin: 0; padding: 0; }

table.tb { width: 100%; border-collapse: collapse; font-size: 12.5px; }
table.tb th { text-align: left; color: var(--muted); font-weight: 500; padding: 9px 10px; border-bottom: 1px solid var(--line); font-size: 11.5px; }
table.tb td { padding: 11px 10px; border-bottom: 1px solid #1b2334; color: var(--soft); }
table.tb tr:last-child td { border-bottom: 0; }
.num { font-variant-numeric: tabular-nums; }

.lesson { border: 1px solid var(--line); background: var(--panel-2); border-radius: 13px; padding: 15px 16px; }
.lesson h4 { font-size: 13.5px; margin-bottom: 6px; color: var(--text); }
.lesson p { margin: 0; font-size: 12.5px; color: var(--muted); line-height: 1.75; }

@media (max-width: 1080px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; }
  .studio { grid-template-columns: 1fr; }
  .g4 { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .g3 { grid-template-columns: 1fr; }
  .main { padding: 20px 16px 48px; }
}

/* ============ 封面缩略图 / 平台实时结果卡片 ============ */
.thumb {
  flex: 0 0 auto; border-radius: 9px; overflow: hidden; display: grid; place-items: center;
  background: var(--panel-2); border: 1px solid var(--line); color: var(--muted); font-size: 10px;
}
.thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.thumb.ph { background: repeating-linear-gradient(45deg, #0d1424, #0d1424 6px, #121a2e 6px, #121a2e 12px); }
.plat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(156px, 1fr)); gap: 12px; margin-top: 12px; }
/* 参考账号作品墙：列更宽、卡片不被同行拉高、按钮不换行 */
.cgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(178px, 1fr)); gap: 12px; margin-top: 10px; align-items: start; }
.pcard {
  background: var(--panel-2); border: 1px solid var(--line); border-radius: 12px; overflow: hidden;
  display: flex; flex-direction: column; transition: .15s; align-self: start;
}
.pcard:hover { border-color: #31405f; transform: translateY(-1px); }
.pcover { aspect-ratio: 3 / 4; background: #0d1424; display: grid; place-items: center; overflow: hidden; color: var(--muted); font-size: 11px; flex: none;
  background-image: repeating-linear-gradient(45deg, #0d1424, #0d1424 7px, #121a2e 7px, #121a2e 14px); }
.pcover img { width: 100%; height: 100%; object-fit: cover; display: block; position: relative; }
.pcover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.pbody { padding: 9px 10px 10px; display: flex; flex-direction: column; gap: 5px; }
.ptitle { font-size: 12.5px; font-weight: 600; line-height: 1.4; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; min-height: 35px; }
.pmeta { display: flex; gap: 8px; font-size: 11px; color: var(--muted); flex-wrap: wrap; }
.pacts { display: flex; gap: 6px; margin-top: 4px; }
.pacts .btn { flex: 1; justify-content: center; padding: 5px 4px; font-size: 11px; white-space: nowrap; min-width: 0; overflow: hidden; }

/* ---- AI 配图（生图） ---- */
.gen-styles { display: flex; gap: 7px; flex-wrap: wrap; }
.gen-styles button {
  padding: 6px 12px; border-radius: 999px; border: 1px solid var(--line);
  background: var(--panel-2); color: var(--soft); font-size: 12px; cursor: pointer;
  font-family: inherit; transition: .15s;
}
.gen-styles button:hover { border-color: #31405f; color: var(--text); }
.gen-styles button.active { background: rgba(34, 211, 238, .12); border-color: #22d3ee; color: #22d3ee; }
.rchip {
  padding: 6px 11px; border-radius: 999px; border: 1px solid rgba(255,189,89,.28);
  background: rgba(255,189,89,.07); color: var(--amber); font-size: 12px; cursor: pointer;
  font-family: inherit; transition: .15s; white-space: nowrap;
}
.rchip:hover { border-color: var(--amber); background: rgba(255,189,89,.14); }
.rchip.active { background: rgba(255,189,89,.2); border-color: var(--amber); color: #fff2d6; }
.rtip { margin: 7px 0 0; font-size: 11.5px; line-height: 1.65; color: var(--muted, #6b7c99); }
.rtip b { color: var(--soft, #9aa8c0); font-weight: 500; }
.gen-out { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; margin-top: 12px; }
.gen-out:empty { display: none; }
.gcard { background: var(--panel-2); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.gcard img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; display: block; }
.gacts { display: flex; gap: 6px; padding: 7px 8px 0; }
.gacts .btn { flex: 1; justify-content: center; padding: 5px 4px; font-size: 11px; white-space: nowrap; min-width: 0; }
.gmeta { padding: 6px 9px 8px; font-size: 10.5px; color: var(--muted); }
.gsent { padding-top: 0; line-height: 1.5; opacity: .75; }
.gen-tip {
  grid-column: 1 / -1; padding: 14px; border: 1px dashed var(--line); border-radius: 10px;
  color: var(--soft); font-size: 12.5px; text-align: center;
}