/* =========================================================
   AI 图片视频创作系统 · 前台样式
   ========================================================= */
:root{
  --bg:#050816;
  --bg-soft:#070b13;
  --panel:rgba(255,255,255,.035);
  --panel-2:rgba(255,255,255,.06);
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --text:#e8edf7;
  --text-dim:#aab3c5;
  --muted:#7d879c;
  --accent:#6366f1;
  --accent-2:#22d3ee;
  --accent-3:#a855f7;
  --gold:#f5c76b;
  --green:#34d399;
  --red:#f87171;
  --radius:16px;
  --shadow:0 24px 60px rgba(0,0,0,.45);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body.app-body{
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:14px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;display:flex;flex-direction:column;
}
body.app-body::before{
  content:"";position:fixed;inset:0;z-index:-1;
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(99,102,241,.20), transparent 60%),
    radial-gradient(800px 480px at 88% 4%, rgba(34,211,238,.12), transparent 62%),
    linear-gradient(180deg,#050816 0%,#060a17 45%,#04060f 100%);
}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
img{max-width:100%;display:block}
h1,h2,h3,h4,h5{margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0}
::selection{background:rgba(99,102,241,.4)}

/* ── 通用 ─────────────────────────────────────────── */
.muted{color:var(--muted)}
.small{font-size:12px}
.mono{font-family:"JetBrains Mono",Consolas,Monaco,monospace;font-size:12.5px}
.text-green{color:var(--green)}
.text-red{color:var(--red)}
.text-gold{color:var(--gold)}
.link{color:#9db4ff;font-size:13px}
.link:hover{color:#c7d5ff}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  height:38px;padding:0 18px;border-radius:10px;border:1px solid transparent;
  font-size:13.5px;font-weight:600;cursor:pointer;transition:.18s ease;
  background:transparent;color:var(--text);white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#6366f1 0%,#7c8bff 45%,#22d3ee 130%);
  color:#fff;border:none;box-shadow:0 10px 26px rgba(99,102,241,.35);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 14px 32px rgba(99,102,241,.45)}
.btn-ghost{border-color:var(--line);background:rgba(255,255,255,.02);color:var(--text-dim)}
.btn-ghost:hover{border-color:var(--line-strong);color:#fff;background:rgba(255,255,255,.05)}
.btn-lg{height:46px;padding:0 26px;font-size:15px;border-radius:12px}
.btn-sm{height:31px;padding:0 12px;font-size:12.5px;border-radius:8px}
.btn-block{width:100%}
.btn.danger{color:#ff9d9d}
.btn.danger:hover{border-color:rgba(248,113,113,.5);background:rgba(248,113,113,.08)}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}

.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px 18px 20px;backdrop-filter:blur(14px)}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}
.panel-head h3{font-size:14px}
.panel-wide{grid-column:1/-1}

.alert{padding:12px 16px;border-radius:10px;font-size:13px;margin-bottom:16px;border:1px solid}
.alert-error{background:rgba(248,113,113,.08);border-color:rgba(248,113,113,.35);color:#ffc9c9}
.alert-success{background:rgba(52,211,153,.08);border-color:rgba(52,211,153,.32);color:#b6f3d8}
.flash{position:fixed;top:78px;left:50%;transform:translateX(-50%);z-index:60;padding:11px 22px;border-radius:999px;font-size:13px;backdrop-filter:blur(10px);animation:fadeIn .3s ease}
.flash-success{background:rgba(52,211,153,.14);border:1px solid rgba(52,211,153,.4);color:#c9ffe9}
.flash-error{background:rgba(248,113,113,.14);border:1px solid rgba(248,113,113,.4);color:#ffd4d4}
@keyframes fadeIn{from{opacity:0;transform:translate(-50%,-8px)}to{opacity:1;transform:translate(-50%,0)}}

.empty-state{padding:56px 24px;text-align:center;border:1px dashed var(--line);border-radius:var(--radius);color:var(--text-dim)}
.empty-state h3{font-size:17px;margin-bottom:8px}
.empty-state p{margin-bottom:18px;color:var(--muted)}
.empty-state.large{padding:80px 24px}

.spinner{width:18px;height:18px;border-radius:50%;border:2px solid rgba(255,255,255,.2);border-top-color:#9aa8ff;display:inline-block;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.pager{display:flex;align-items:center;justify-content:center;gap:14px;padding:18px 0 4px}
.pager-link{height:32px;padding:0 14px;border:1px solid var(--line);border-radius:8px;display:inline-flex;align-items:center;font-size:12.5px;color:var(--text-dim)}
.pager-link:hover{border-color:var(--line-strong);color:#fff}
.pager-link.disabled{opacity:.4;pointer-events:none}
.pager-info{font-size:12.5px;color:var(--muted)}
.pagination-wrap{margin-top:6px}

/* ── 顶栏 ─────────────────────────────────────────── */
.site-header{position:sticky;top:0;z-index:50;backdrop-filter:blur(18px);background:rgba(5,8,22,.72);border-bottom:1px solid rgba(255,255,255,.06)}
.header-inner{max-width:1500px;margin:0 auto;height:64px;padding:0 24px;display:flex;align-items:center;gap:32px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700}
.brand-mark{
  width:32px;height:32px;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(135deg,#6366f1,#22d3ee);color:#fff;font-size:12.5px;font-weight:800;letter-spacing:.5px;
  box-shadow:0 6px 18px rgba(99,102,241,.45);
}
.brand-text{font-size:15px;letter-spacing:.01em}
.site-nav{display:flex;gap:26px;margin-left:8px}
.site-nav a{font-size:13.5px;color:var(--text-dim);padding:6px 0;position:relative;transition:.16s}
.site-nav a:hover{color:#fff}
.site-nav a.active{color:#fff}
.site-nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--accent),var(--accent-2))}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.credits-pill{
  display:inline-flex;align-items:center;gap:7px;height:32px;padding:0 13px;border-radius:999px;
  border:1px solid rgba(245,199,107,.3);background:rgba(245,199,107,.08);color:#ffe3a8;font-size:12.5px;font-weight:600;
}
.credits-pill .dot{width:6px;height:6px;border-radius:50%;background:var(--gold);box-shadow:0 0 10px var(--gold)}
.user-menu{position:relative}
.avatar-btn{display:flex;align-items:center;gap:8px;height:34px;padding:0 10px 0 4px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--text);cursor:pointer}
.avatar{width:26px;height:26px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,#7c8bff,#22d3ee);color:#fff;font-size:12px;font-weight:700}
.avatar-name{font-size:12.5px;color:var(--text-dim);max-width:110px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.dropdown{position:absolute;right:0;top:calc(100% + 8px);min-width:170px;padding:6px;border-radius:12px;background:#0b1020;border:1px solid var(--line);box-shadow:var(--shadow);display:none}
.dropdown.open{display:block}
.dropdown a,.dropdown button{display:block;width:100%;text-align:left;padding:9px 12px;border-radius:8px;font-size:13px;color:var(--text-dim);background:none;border:none;cursor:pointer}
.dropdown a:hover,.dropdown button:hover{background:rgba(255,255,255,.06);color:#fff}

.site-main{flex:1}
/* ── 首页 Hero ────────────────────────────────────── */
.hero{position:relative;overflow:hidden;padding:88px 24px 64px}
.hero-bg{position:absolute;inset:0;z-index:0;overflow:hidden}
.orb{position:absolute;border-radius:50%;filter:blur(70px);opacity:.55}
.orb-1{width:520px;height:520px;left:-120px;top:-160px;background:radial-gradient(circle,rgba(99,102,241,.65),transparent 62%)}
.orb-2{width:460px;height:460px;right:-90px;top:30px;background:radial-gradient(circle,rgba(34,211,238,.4),transparent 64%)}
.grid-lines{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:64px 64px;mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 72%)}
.hero-inner{position:relative;z-index:1;max-width:960px;margin:0 auto;text-align:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;border:1px solid rgba(124,139,255,.35);background:rgba(99,102,241,.1);color:#c3ccff;font-size:11.5px;letter-spacing:.16em;font-weight:600}
.hero-badge .pulse{width:6px;height:6px;border-radius:50%;background:#7c8bff;box-shadow:0 0 0 0 rgba(124,139,255,.6);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 8px rgba(124,139,255,0)}100%{box-shadow:0 0 0 0 rgba(124,139,255,0)}}
.hero-title{margin:22px 0 16px;font-size:clamp(34px,5vw,58px);line-height:1.15;letter-spacing:-.03em}
.gradient-text{background:linear-gradient(100deg,#7c8bff 0%,#22d3ee 50%,#c084fc 100%);-webkit-background-clip:text;background-clip:text;color:transparent;display:inline-block}
.hero-sub{max-width:640px;margin:0 auto;color:var(--text-dim);font-size:15.5px}
.hero-actions{display:flex;justify-content:center;gap:14px;margin-top:30px;flex-wrap:wrap}
.hero-stats{display:flex;justify-content:center;gap:64px;margin-top:52px}
.hero-stats>div{display:flex;flex-direction:column;align-items:center;gap:4px}
.hero-stats strong{font-size:30px;font-weight:800;letter-spacing:-.02em}
.hero-stats strong span{color:#7c8bff}
.hero-stats em{font-style:normal;font-size:12.5px;color:var(--muted);letter-spacing:.08em}

/* ── 区块 ─────────────────────────────────────────── */
.section{max-width:1200px;margin:0 auto;padding:64px 24px}
.section-alt{max-width:none;background:rgba(255,255,255,.015);border-top:1px solid rgba(255,255,255,.05);border-bottom:1px solid rgba(255,255,255,.05)}
.section-alt>*{max-width:1200px;margin-left:auto;margin-right:auto}
.section-head{text-align:center;margin-bottom:38px}
.section-eyebrow{font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;color:#8b9bff;font-weight:700}
.section-head h2{font-size:clamp(24px,3vw,34px);margin:10px 0 8px;letter-spacing:-.02em}
.section-head p{color:var(--muted);font-size:14px}

.cap-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.cap-card{position:relative;padding:24px 22px;border-radius:var(--radius);border:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.015));transition:.2s;overflow:hidden}
.cap-card:hover{transform:translateY(-4px);border-color:rgba(124,139,255,.4);box-shadow:0 20px 50px rgba(0,0,0,.35)}
.cap-card.muted{opacity:.72}
.cap-icon{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:rgba(99,102,241,.14);border:1px solid rgba(124,139,255,.28);color:#a8b6ff;margin-bottom:16px}
.cap-icon svg{width:21px;height:21px}
.cap-card h3{font-size:15px;margin-bottom:8px}
.cap-card p{color:var(--muted);font-size:13px;line-height:1.7}
.cap-link{display:inline-block;margin-top:16px;font-size:12.5px;color:#9db4ff}

.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.flow-card{padding:22px;border-radius:var(--radius);border:1px solid var(--line);background:rgba(255,255,255,.025)}
.flow-num{font-size:12px;font-weight:800;color:#7c8bff;letter-spacing:.14em}
.flow-card h4{margin:10px 0 8px;font-size:14.5px}
.flow-card p{color:var(--muted);font-size:12.8px;line-height:1.7}

.model-marquee{display:flex;flex-direction:column;gap:16px}
.model-group{display:flex;gap:16px;align-items:flex-start;padding:16px 18px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.02)}
.model-group-name{flex:0 0 54px;font-size:12px;color:#9db4ff;font-weight:700;padding-top:4px}
.model-chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{padding:5px 12px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.035);font-size:12px;color:var(--text-dim)}
.chip em{font-style:normal;color:var(--muted);font-size:11px;margin-left:4px}

.showcase-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.showcase-card{margin:0;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:rgba(255,255,255,.025);cursor:zoom-in;transition:.2s}
.showcase-card:hover{transform:translateY(-3px);border-color:rgba(124,139,255,.35)}
.showcase-media{position:relative;aspect-ratio:3/4;background:#0a0f1e;overflow:hidden}
.showcase-media img,.showcase-media video{width:100%;height:100%;object-fit:cover;transition:.4s}
.showcase-card:hover .showcase-media img{transform:scale(1.04)}
.showcase-type{position:absolute;left:10px;top:10px;padding:3px 9px;border-radius:999px;background:rgba(0,0,0,.55);font-size:11px;color:#dfe6ff;backdrop-filter:blur(6px)}
.showcase-card figcaption{padding:12px 13px 14px}
.showcase-model{font-size:11.5px;color:#9db4ff;margin-bottom:4px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.showcase-card figcaption p{font-size:12px;color:var(--muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

.cta-band{padding:24px}
.cta-inner{max-width:1000px;margin:0 auto;text-align:center;padding:56px 32px;border-radius:24px;border:1px solid rgba(124,139,255,.25);background:radial-gradient(600px 240px at 50% 0%,rgba(99,102,241,.28),transparent 70%),rgba(255,255,255,.03)}
.cta-inner h2{font-size:clamp(22px,3vw,30px);margin-bottom:10px}
.cta-inner p{color:var(--text-dim);margin-bottom:24px}

/* ── 页脚 ─────────────────────────────────────────── */
.site-footer{border-top:1px solid rgba(255,255,255,.07);background:rgba(3,6,16,.6);padding:44px 24px 22px}
.footer-inner{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap}
.footer-brand{display:flex;gap:12px;max-width:340px}
.footer-title{font-weight:700;margin-bottom:6px}
.footer-desc{font-size:12.5px;color:var(--muted);line-height:1.7}
.footer-links{display:flex;gap:56px;flex-wrap:wrap}
.footer-links h5{font-size:12px;color:#c3cadd;margin-bottom:12px;letter-spacing:.06em}
.footer-links a,.footer-links span{display:block;font-size:12.5px;color:var(--muted);margin-bottom:8px}
.footer-links a:hover{color:#fff}
.footer-bottom{max-width:1200px;margin:28px auto 0;padding-top:18px;border-top:1px solid rgba(255,255,255,.05);font-size:12px;color:#5f6879;text-align:center}

/* ── 创作页 ───────────────────────────────────────── */
.studio-topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}
.studio-tabs{display:inline-flex;padding:4px;border-radius:12px;background:rgba(255,255,255,.04);border:1px solid var(--line)}
.studio-tab{padding:8px 20px;border-radius:9px;font-size:13.5px;color:var(--text-dim);font-weight:600}
.studio-tab.active{background:linear-gradient(135deg,rgba(99,102,241,.9),rgba(34,211,238,.75));color:#fff;box-shadow:0 6px 18px rgba(99,102,241,.3)}
.studio-topbar-right{display:flex;align-items:center;gap:10px}
.studio-grid{display:grid;grid-template-columns:262px minmax(0,1fr) 340px;gap:16px;align-items:start}
.studio-side{border:1px solid var(--line);border-radius:var(--radius);background:rgba(255,255,255,.025);padding:14px;position:sticky;top:82px}
.side-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.side-head h3{font-size:13.5px}
.model-list{display:flex;flex-direction:column;gap:7px;max-height:calc(100vh - 190px);overflow:auto}
.model-list::-webkit-scrollbar{width:5px}
.model-list::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:3px}
.model-item{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:11px;border:1px solid transparent;background:transparent;cursor:pointer;text-align:left;transition:.16s;width:100%}
.model-item:hover{background:rgba(255,255,255,.045)}
.model-item.active{border-color:rgba(124,139,255,.45);background:rgba(99,102,241,.12)}
.model-item-cover{flex:0 0 32px;width:32px;height:32px;border-radius:9px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(99,102,241,.5),rgba(34,211,238,.35));color:#fff;font-size:13px;font-weight:700;text-transform:uppercase}
.model-item-info{min-width:0;display:flex;flex-direction:column;gap:2px}
.model-item-name{font-size:12.8px;font-weight:600;color:var(--text);display:flex;align-items:center;gap:6px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.model-item-meta{font-size:11px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tag-new{font-style:normal;font-size:9px;padding:1px 5px;border-radius:4px;background:rgba(34,211,238,.18);color:#7de8ff;font-weight:700;letter-spacing:.04em}
.studio-main{display:flex;flex-direction:column;gap:16px;min-width:0}
.prompt-input{width:100%;min-height:132px;resize:vertical;padding:14px 15px;border-radius:12px;border:1px solid var(--line);background:rgba(0,0,0,.25);color:var(--text);font-size:13.5px;line-height:1.75;outline:none;transition:.16s}
.prompt-input:focus{border-color:rgba(124,139,255,.55);box-shadow:0 0 0 3px rgba(99,102,241,.12)}
.prompt-input::placeholder{color:#5d6678}
.prompt-tools{display:flex;align-items:center;justify-content:space-between;margin-top:10px}
.field-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.field-item{display:flex;flex-direction:column;gap:6px}
.field-item.span-2{grid-column:1/-1}
.field-item>span{font-size:12.5px;color:var(--text-dim);display:flex;align-items:center;gap:6px}
.field-item>span em{font-style:normal;color:#ff8e8e;font-size:11px}
.field-item input[type=text],.field-item input[type=number],.field-item select,.field-item textarea{
  width:100%;height:38px;padding:0 12px;border-radius:9px;border:1px solid var(--line);
  background:rgba(0,0,0,.22);color:var(--text);font-size:13px;outline:none;transition:.16s;
}
.field-item textarea{height:auto;padding:10px 12px;line-height:1.7;resize:vertical}
.field-item input:focus,.field-item select:focus,.field-item textarea:focus{border-color:rgba(124,139,255,.5)}
.field-help{font-size:11px;color:var(--muted)}
.field-toggle{display:flex;align-items:center;gap:8px;height:38px}
.dropzone{position:relative;border:1px dashed rgba(255,255,255,.18);border-radius:12px;padding:18px;background:rgba(255,255,255,.015);transition:.16s;cursor:pointer}
.dropzone.dragging{border-color:rgba(124,139,255,.6);background:rgba(99,102,241,.08)}
.dropzone-inner{display:flex;flex-direction:column;align-items:center;gap:6px;color:var(--muted);text-align:center}
.dropzone-inner p{font-size:13px;color:var(--text-dim)}
.dropzone-inner em{font-style:normal;font-size:11.5px;color:var(--muted)}
.thumbs{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.thumb-item{position:relative;width:78px;height:78px;border-radius:10px;overflow:hidden;border:1px solid var(--line)}
.thumb-item img{width:100%;height:100%;object-fit:cover}
.thumb-item button{position:absolute;right:3px;top:3px;width:18px;height:18px;border-radius:50%;border:none;background:rgba(0,0,0,.6);color:#fff;font-size:12px;line-height:1;cursor:pointer}
.generate-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 18px;border-radius:14px;border:1px solid var(--line);background:linear-gradient(90deg,rgba(99,102,241,.1),rgba(255,255,255,.02))}
.cost{display:flex;align-items:baseline;gap:6px;color:var(--text-dim);font-size:12.5px}
.cost strong{font-size:20px;color:var(--gold);font-weight:800}
.cost em{font-style:normal;color:var(--muted);font-size:11.5px}
.studio-result{display:flex;flex-direction:column;gap:16px;position:sticky;top:82px}
.result-stage{min-height:320px;display:grid;place-items:center;border-radius:12px;background:radial-gradient(circle at 50% 0%,rgba(99,102,241,.12),transparent 70%),rgba(0,0,0,.2);border:1px solid rgba(255,255,255,.05);overflow:hidden}
.result-empty{text-align:center;color:var(--muted);padding:24px}
.result-empty-icon{font-size:26px;color:#7c8bff;margin-bottom:10px}
.result-empty p{font-size:13px;color:var(--text-dim);margin-bottom:4px}
.result-empty em{font-style:normal;font-size:11.5px}
.result-stage img,.result-stage video{width:100%;height:auto;max-height:520px;object-fit:contain;background:#000}
.result-loading{display:flex;flex-direction:column;align-items:center;gap:10px;color:var(--text-dim);padding:30px}
.result-loading .spinner{width:26px;height:26px;border-width:3px}
.result-actions{display:flex;gap:8px;justify-content:center;padding:10px 0 0}
.recent-list{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.recent-item{aspect-ratio:1;border-radius:9px;overflow:hidden;border:1px solid var(--line);background:rgba(0,0,0,.25);cursor:pointer;padding:0;display:grid;place-items:center}
.recent-item img,.recent-item video{width:100%;height:100%;object-fit:cover}
.recent-pending{font-size:10.5px;color:var(--muted)}
.recent-panel{position:relative}

/* ── 对话页 ───────────────────────────────────────── */
.chat-grid{display:grid;grid-template-columns:260px minmax(0,1fr);gap:16px;height:calc(100% - 60px)}
.chat-side{border:1px solid var(--line);border-radius:var(--radius);background:rgba(255,255,255,.025);padding:12px;display:flex;flex-direction:column;gap:10px;overflow:hidden}
.conv-list{display:flex;flex-direction:column;gap:5px;overflow:auto;flex:1}
.conv-item{text-align:left;padding:9px 10px;border-radius:9px;border:1px solid transparent;background:none;cursor:pointer;display:flex;flex-direction:column;gap:2px}
.conv-item:hover{background:rgba(255,255,255,.045)}
.conv-item.active{border-color:rgba(124,139,255,.4);background:rgba(99,102,241,.12)}
.conv-title{font-size:12.8px;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.conv-meta{font-size:10.5px;color:var(--muted)}
.chat-main{border:1px solid var(--line);border-radius:var(--radius);background:rgba(255,255,255,.02);display:flex;flex-direction:column;overflow:hidden}
.chat-head{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--line);gap:12px}
.chat-model-select select{height:34px;padding:0 12px;border-radius:9px;background:rgba(0,0,0,.3);border:1px solid var(--line);color:var(--text);font-size:12.5px;outline:none}
.chat-messages{flex:1;overflow:auto;padding:22px 26px;display:flex;flex-direction:column;gap:16px}
.chat-welcome{max-width:520px;margin:auto;text-align:center;color:var(--muted);padding:30px 0}
.chat-welcome-icon{font-size:26px;color:#7c8bff;margin-bottom:10px}
.chat-welcome h3{font-size:19px;color:var(--text);margin-bottom:6px}
.chat-welcome p{font-size:13px;margin-bottom:18px}
.chat-suggest{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.chat-suggest button{padding:8px 13px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--text-dim);font-size:12px;cursor:pointer}
.chat-suggest button:hover{border-color:rgba(124,139,255,.45);color:#fff}
.msg{display:flex;gap:10px;max-width:88%}
.msg-user{margin-left:auto;flex-direction:row-reverse}
.msg-avatar{flex:0 0 28px;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;font-size:11px;font-weight:700;background:rgba(255,255,255,.1);color:#dfe6ff}
.msg-assistant .msg-avatar{background:linear-gradient(135deg,#6366f1,#22d3ee);color:#fff}
.msg-bubble{padding:11px 14px;border-radius:13px;background:rgba(255,255,255,.055);border:1px solid var(--line);font-size:13.5px;line-height:1.75;white-space:pre-wrap;word-break:break-word}
.msg-user .msg-bubble{background:linear-gradient(135deg,rgba(99,102,241,.32),rgba(34,211,238,.18));border-color:rgba(124,139,255,.35)}
.msg-time{font-size:10.5px;color:var(--muted);margin-top:5px}
.chat-composer{border-top:1px solid var(--line);padding:12px 16px 14px;background:rgba(0,0,0,.18)}
.chat-composer textarea{width:100%;border:none;background:transparent;color:var(--text);font-size:13.5px;line-height:1.7;resize:none;outline:none;min-height:44px;max-height:180px}
.composer-tools{display:flex;align-items:center;gap:10px;margin-top:6px}
.composer-tools .small{margin-right:auto}
.icon-btn{width:28px;height:28px;border-radius:8px;border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--text-dim);cursor:pointer}

/* ── 通用页面 ─────────────────────────────────────── */
.page-shell{max-width:1280px;margin:0 auto;padding:32px 24px 64px}
.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:22px;flex-wrap:wrap}
.page-head h1{font-size:26px;letter-spacing:-.02em;margin-bottom:6px}
.page-head p{font-size:13px}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:20px}
.stat-card{padding:16px 18px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.03);display:flex;flex-direction:column;gap:4px}
.stat-card span{font-size:12px;color:var(--muted)}
.stat-card strong{font-size:24px;font-weight:800}
.filter-tabs{display:flex;gap:6px;margin-bottom:18px;flex-wrap:wrap}
.filter-tabs a{padding:7px 14px;border-radius:9px;border:1px solid transparent;font-size:12.5px;color:var(--text-dim);background:rgba(255,255,255,.03)}
.filter-tabs a.active{background:rgba(99,102,241,.16);border-color:rgba(124,139,255,.4);color:#fff}

.history-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.history-card{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:rgba(255,255,255,.025);display:flex;flex-direction:column}
.history-media{position:relative;aspect-ratio:1;background:#0a0f1e;display:grid;place-items:center;overflow:hidden}
.history-media img,.history-media video{width:100%;height:100%;object-fit:cover}
.history-placeholder{display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--muted);font-size:12px}
.status-badge{position:absolute;left:9px;top:9px;padding:3px 9px;border-radius:999px;font-size:10.5px;backdrop-filter:blur(6px);background:rgba(0,0,0,.55);color:#dfe6ff}
.status-completed{background:rgba(52,211,153,.25);color:#b8ffe4}
.status-failed{background:rgba(248,113,113,.28);color:#ffd0d0}
.status-processing,.status-queued{background:rgba(99,102,241,.3);color:#d6ddff}
.history-body{padding:12px 13px 14px;display:flex;flex-direction:column;gap:7px;flex:1}
.history-model{font-size:11.5px;color:#9db4ff;display:flex;justify-content:space-between;gap:8px}
.history-model em{font-style:normal;color:var(--muted);font-size:10.5px}
.history-prompt{font-size:12.5px;color:var(--text-dim);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.history-foot{display:flex;justify-content:space-between;font-size:11px;color:var(--muted)}
.history-actions{display:flex;gap:6px}
.history-actions form{margin:0}
.history-error{font-size:11px;color:#ff9d9d;border-top:1px dashed rgba(248,113,113,.25);padding-top:6px}

.user-grid{display:grid;grid-template-columns:340px minmax(0,1fr);gap:16px;align-items:start}
.profile-card{display:flex;flex-direction:column;gap:16px}
.profile-top{display:flex;align-items:center;gap:12px}
.profile-avatar{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;background:linear-gradient(135deg,#6366f1,#22d3ee);color:#fff;font-size:20px;font-weight:800}
.profile-top h3{font-size:16px}
.tag-admin{display:inline-block;margin-top:4px;font-size:10.5px;padding:1px 7px;border-radius:5px;background:rgba(245,199,107,.16);color:#ffe3a8}
.profile-credits{padding:14px;border-radius:12px;background:linear-gradient(135deg,rgba(99,102,241,.16),rgba(34,211,238,.08));border:1px solid rgba(124,139,255,.28);display:flex;flex-direction:column;gap:2px}
.profile-credits span{font-size:11.5px;color:var(--text-dim)}
.profile-credits strong{font-size:28px;font-weight:800;color:#fff}
.profile-credits em{font-style:normal;font-size:11px;color:var(--muted);margin-top:4px}
.profile-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;text-align:center}
.profile-stats strong{display:block;font-size:16px}
.profile-stats span{font-size:11px;color:var(--muted)}

.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.form-grid.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.form-grid.cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.form-grid label{display:flex;flex-direction:column;gap:6px;font-size:12.5px;color:var(--text-dim)}
.form-grid label.span-2{grid-column:span 2}
.form-grid input,.form-grid select,.form-grid textarea{width:100%;height:38px;padding:0 12px;border-radius:9px;border:1px solid var(--line);background:rgba(0,0,0,.22);color:var(--text);font-size:13px;outline:none}
.form-grid textarea{height:auto;padding:10px 12px;line-height:1.7}
.form-grid input:focus,.form-grid select:focus,.form-grid textarea:focus{border-color:rgba(124,139,255,.5)}
.form-actions{grid-column:1/-1;display:flex;align-items:center;gap:12px}

.table-wrap{overflow:auto;margin:0 -4px}
.table{width:100%;border-collapse:collapse;font-size:12.8px}
.table th{text-align:left;padding:10px 12px;font-weight:600;color:var(--muted);font-size:11.5px;letter-spacing:.04em;border-bottom:1px solid var(--line);white-space:nowrap}
.table td{padding:11px 12px;border-bottom:1px solid rgba(255,255,255,.05);vertical-align:middle}
.table tr:last-child td{border-bottom:none}
.table tbody tr:hover{background:rgba(255,255,255,.02)}
.badge{display:inline-block;padding:2px 8px;border-radius:6px;font-size:11px;background:rgba(255,255,255,.07);color:var(--text-dim)}
.badge-completed{background:rgba(52,211,153,.16);color:#a9f6d8}
.badge-failed{background:rgba(248,113,113,.16);color:#ffc2c2}
.badge-processing,.badge-queued{background:rgba(99,102,241,.2);color:#cfd7ff}
.badge-admin{background:rgba(245,199,107,.16);color:#ffe3a8}
.badge-image{background:rgba(34,211,238,.16);color:#a8f0ff}
.badge-video{background:rgba(168,85,247,.18);color:#e3c8ff}
.badge-chat{background:rgba(99,102,241,.18);color:#d2d9ff}
.badge-system{background:rgba(255,255,255,.08);color:#b9c2d6}
.kv{display:grid;grid-template-columns:1fr;gap:10px;margin-top:14px}
.kv.cols-2{grid-template-columns:repeat(2,1fr)}
.kv.cols-3{grid-template-columns:repeat(3,1fr)}
.kv>div{display:flex;flex-direction:column;gap:2px}
.kv span{font-size:11.5px;color:var(--muted)}
.kv strong{font-size:13px;font-weight:600}

/* ── 灯箱 ─────────────────────────────────────────── */
.lightbox{position:fixed;inset:0;z-index:90;background:rgba(2,4,12,.92);display:grid;place-items:center;padding:40px}
.lightbox[hidden]{display:none}
.lightbox-close{position:absolute;right:22px;top:18px;width:38px;height:38px;border-radius:50%;border:1px solid var(--line);background:rgba(255,255,255,.06);color:#fff;font-size:20px;cursor:pointer}
.lightbox-body img,.lightbox-body video{max-width:88vw;max-height:82vh;border-radius:10px}

@media (max-width:1400px){
  .studio-grid{grid-template-columns:230px minmax(0,1fr) 300px}
}
@media (max-width:1200px){
  .cap-grid,.flow-grid{grid-template-columns:repeat(2,1fr)}
  .showcase-grid,.history-grid{grid-template-columns:repeat(3,1fr)}
  .studio-grid{grid-template-columns:1fr;gap:14px}
  .studio-side,.studio-result{position:static;max-height:none}
  .model-list{max-height:260px}
  .user-grid{grid-template-columns:1fr}
}
@media (max-width:860px){
  .site-nav{display:none}
  .header-inner{gap:14px;padding:0 16px}
  .hero{padding:64px 18px 44px}
  .hero-stats{gap:32px}
  .showcase-grid,.history-grid{grid-template-columns:repeat(2,1fr)}
  .cap-grid,.flow-grid{grid-template-columns:1fr}
  .chat-grid{grid-template-columns:1fr;height:auto}
  .chat-side{max-height:220px}
  .field-grid,.form-grid,.form-grid.cols-3,.form-grid.cols-4{grid-template-columns:1fr}
  .stat-row{grid-template-columns:1fr}
}