/* ============================================================
   智达恒通 · 统一设计系统 v2.0
   深紫动漫底 / 霓虹描边 / 电影级视觉
   解决：纯黑背景隐藏动漫效果 → 改用深紫渐变+动态光晕
   ============================================================ */

/* ---------- Design Tokens ---------- */
:root{
  --bg:#08061a;
  --bg-soft:#0e0b1f;
  --bg-subtle:#120e28;
  --surface:#ffffff;
  --surface-2:#f4f4f5;
  --ink:#0a0a0c;
  --ink-2:#16181d;
  --muted:#6b7280;
  --muted-2:#9ca3af;
  --border:#e6e7ea;
  --border-strong:#d4d6db;
  --on-bg:#e5e7eb;
  --on-bg-2:#a1a1aa;
  --on-bg-3:#9ca3af;
  --border-d:rgba(168,132,255,.12);
  --border-d-2:rgba(168,132,255,.18);
  --panel-d:#0d0a1e;
  --panel-d-2:#161230;
  --lime:#84cc16;
  --cyan:#34c8ff;
  --amber:#f59e0b;
  --accent:#a855f7;
  --accent-2:#6366f1;
  --accent-3:#ff6b9d;
  --grad:linear-gradient(135deg,#a855f7 0%,#6366f1 50%,#34c8ff 100%);
  --grad-amber:linear-gradient(135deg,#f59e0b 0%,#a855f7 100%);
  --accent-soft:rgba(168,85,247,.12);
  --accent-ink:rgba(168,132,255,.05);
  --success:#16a34a;
  --warn:#d97706;
  --danger:#ef4444;
  --radius:8px;
  --radius-lg:12px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(0,0,0,.4);
  --shadow:0 12px 34px -16px rgba(0,0,0,.65);
  --shadow-lg:0 36px 70px -28px rgba(0,0,0,.75);
  --maxw:1180px;
  --header-h:68px;
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Hiragino Sans GB','Microsoft YaHei','Noto Sans SC',sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,'Courier New',monospace;
  --ease:cubic-bezier(.4,0,.2,1);
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font);
  color:var(--on-bg);
  background:var(--bg);
  line-height:1.6;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

/* ===== Global anime background effect ===== */
body::before{
  content:"";
  position:fixed;inset:0;z-index:-1;
  background:
    radial-gradient(ellipse at 20% 20%,rgba(99,102,241,.08),transparent 40%),
    radial-gradient(ellipse at 80% 30%,rgba(168,85,247,.06),transparent 35%),
    radial-gradient(ellipse at 50% 80%,rgba(255,107,157,.04),transparent 40%),
    linear-gradient(180deg,#08061a 0%,#0a0720 50%,#08061a 100%);
  pointer-events:none;
}

img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input,textarea,select{font-family:inherit;font-size:16px}
ul{list-style:none}
h1,h2,h3,h4{line-height:1.18;font-weight:700;letter-spacing:-.02em;color:var(--on-bg)}
::selection{background:rgba(168,85,247,.22);color:#fff}

/* ---------- Layout ---------- */
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-sm{padding:64px 0}
.section-tight{padding:56px 0}
.center{text-align:center}
.lead{color:var(--on-bg-2);font-size:18px;line-height:1.7}
.muted{color:var(--on-bg-2)}
.maxw-2xl{max-width:720px;margin-left:auto;margin-right:auto}
.maxw-xl{max-width:560px;margin-left:auto;margin-right:auto}

/* ---------- Header / Nav ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:var(--header-h);
  display:flex;align-items:center;
  background:rgba(8,6,26,.82);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease),background .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.scrolled{border-bottom-color:var(--border-d);box-shadow:0 6px 24px -18px rgba(0,0,0,.8)}
.nav{display:flex;align-items:center;justify-content:space-between;width:100%}
.brand{display:flex;align-items:center;gap:11px;font-weight:700;font-size:17px;color:#fff}
.brand .logo{
  width:38px;height:38px;border-radius:10px;background:var(--grad);
  display:grid;place-items:center;color:#06121a;font-weight:800;font-size:14px;
  box-shadow:0 8px 20px -8px rgba(99,102,241,.6);
}
.brand .sub{font-size:11px;color:var(--on-bg-2);font-weight:500;letter-spacing:.04em;margin-top:-2px}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{
  padding:9px 14px;border-radius:10px;font-size:14.5px;font-weight:500;color:var(--on-bg-2);
  transition:color .2s,background .2s;
}
.nav-links a:hover{color:#fff;background:var(--accent-ink)}
.nav-links a.active{color:#fff;background:rgba(168,85,247,.14)}
.nav-cta{display:flex;align-items:center;gap:10px}
.nav-toggle{display:none;padding:8px;border-radius:10px;color:#fff}
.nav-toggle:hover{background:var(--accent-ink)}

/* mobile menu */
.mobile-menu{
  position:fixed;top:var(--header-h);left:0;right:0;z-index:99;
  background:rgba(8,6,26,.98);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border-d);
  padding:14px 20px 22px;display:none;flex-direction:column;gap:4px;
  box-shadow:var(--shadow);
}
.mobile-menu.open{display:flex}
.mobile-menu a{padding:12px 14px;border-radius:10px;color:var(--on-bg);font-weight:500}
.mobile-menu a:hover{background:var(--accent-ink);color:#fff}
.mobile-menu .mm-group{margin-bottom:4px}
.mobile-menu .mm-label{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--on-bg-3);padding:8px 14px 4px}

/* dropdown nav */
.nav-drop{position:relative}
.nav-drop::before{content:"";position:absolute;top:100%;left:0;right:0;height:14px;z-index:1}
.nav-drop>a{display:inline-flex;align-items:center;gap:4px;padding:9px 14px;border-radius:10px;font-size:14.5px;font-weight:500;color:var(--on-bg-2);transition:color .2s,background .2s}
.nav-drop>a:hover{color:#fff;background:var(--accent-ink)}
.nav-drop>a svg{transition:transform .2s var(--ease)}
.nav-drop:hover>a svg{transform:rotate(180deg)}
.drop-menu{position:absolute;top:100%;left:0;min-width:200px;padding:8px;margin-top:6px;background:rgba(13,10,30,.96);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--border-d);border-radius:14px;box-shadow:0 20px 60px -16px rgba(0,0,0,.8);opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity .22s var(--ease),transform .22s var(--ease),visibility 0s linear .25s;z-index:200;pointer-events:none}
.drop-menu a{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:10px;font-size:14px;color:var(--on-bg-2);transition:color .2s,background .2s;white-space:nowrap}
.drop-menu a:hover{color:#fff;background:var(--accent-ink)}
.drop-menu a .arrow-r{margin-left:auto;opacity:.4;font-size:11px;transition:opacity .2s,transform .2s}
.drop-menu a:hover .arrow-r{opacity:1;transform:translateX(2px)}

/* Theme / Language toggles */
.theme-btn,.lang-btn{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;color:var(--on-bg-2);background:transparent;transition:all .2s var(--ease);flex-shrink:0;border:1px solid transparent;cursor:pointer}
.theme-btn:hover,.lang-btn:hover{background:var(--accent-ink);color:#fff;border-color:var(--border-d)}

/* Light theme */
.light{--bg:#f5f5f7;--bg-soft:#eeeef0;--bg-subtle:#e8e8ea;--surface:#ffffff;--surface-2:#f4f4f5;--ink:#1d1d1f;--ink-2:#2d2d30;--muted:#6b6b72;--muted-2:#9ca3af;--border:#e6e7ea;--border-strong:#d4d6db;--on-bg:#1d1d1f;--on-bg-2:#374151;--on-bg-3:#6b7280;--border-d:rgba(0,0,0,.12);--border-d-2:rgba(0,0,0,.18);--panel-d:#eaeaec;--panel-d-2:#dfdfe1;--accent:#a855f7;--accent-2:#6366f1;--accent-3:#ff6b9d;--grad:linear-gradient(135deg,#a855f7,#6366f1,#34c8ff);--accent-soft:rgba(168,85,247,.12);--accent-ink:rgba(168,132,255,.05)}
.light .site-header{background:rgba(245,245,247,.92);border-bottom-color:rgba(0,0,0,.08);backdrop-filter:blur(20px)}
.light body::before{display:none}

/* Auth dropdown */
.auth-drop{position:relative}
.auth-drop .nav-trigger{display:inline-flex;align-items:center;gap:5px;padding:9px 16px;border-radius:10px;font-size:14.5px;font-weight:600;color:var(--on-bg-2);background:var(--accent-ink);border:1px solid var(--border-d);transition:all .2s var(--ease);white-space:nowrap;cursor:pointer}
.auth-drop:hover .nav-trigger,.auth-drop.open .nav-trigger{background:rgba(168,85,247,.14);border-color:rgba(168,85,247,.4);color:var(--accent)}
.auth-drop .drop-menu{right:0;left:auto;min-width:240px;padding:10px}
.auth-drop .drop-menu a{padding:11px 14px}

.s-dot{width:8px;height:8px;border-radius:50%;display:inline-block;flex-shrink:0}
.s-dot.cyan{background:var(--cyan);box-shadow:0 0 6px rgba(52,200,255,.6)}
.s-dot.lime{background:var(--lime);box-shadow:0 0 6px rgba(132,204,22,.6)}
.s-dot.amber{background:var(--amber);box-shadow:0 0 6px rgba(245,158,11,.6)}
.s-dot.purple{background:var(--accent);box-shadow:0 0 6px rgba(168,85,247,.6)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;border-radius:10px;font-weight:600;font-size:14.5px;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);white-space:nowrap;border:1px solid transparent}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 24px -6px rgba(168,85,247,.4)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 12px 32px -6px rgba(168,85,247,.5)}
.btn-ghost{background:transparent;color:var(--on-bg);border-color:var(--border-d)}
.btn-ghost:hover{border-color:var(--border-d-2);background:var(--accent-ink);transform:translateY(-1px)}
.btn-neon{background:var(--accent);color:#fff;box-shadow:0 0 22px -6px rgba(168,85,247,.6)}
.btn-neon:hover{background:#9333ea;transform:translateY(-1px);box-shadow:0 8px 26px -8px rgba(168,85,247,.7)}
.btn-lg{padding:14px 28px;font-size:16px;border-radius:12px}
.btn-block{width:100%}
.btn .arrow{transition:transform .15s var(--ease)}
.btn:hover .arrow{transform:translateX(4px)}

/* ---------- Pills ---------- */
.pill{display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:100px;font-size:13px;font-weight:600;background:rgba(168,85,247,.08);color:var(--on-bg);border:1px solid var(--border-d)}
.pill .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}

/* ---------- Section heads ---------- */
.eyebrow{font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:14px}
.h2{font-size:clamp(30px,4.3vw,46px);margin-bottom:16px;color:var(--on-bg)}
.section-head{max-width:720px;margin:0 auto 64px;text-align:center}
.section-head .lead{margin-top:6px}

/* ---------- Grids ---------- */
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

/* ---------- Card base ---------- */
.card{background:var(--panel-d);border:1px solid var(--border-d);border-radius:var(--radius-lg);padding:24px;transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease)}
.card:hover{transform:translateY(-3px);border-color:var(--border-d-2);box-shadow:var(--shadow)}

/* ---------- Reveal ---------- */
.reveal{opacity:1;transform:none}
.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .45s var(--ease),transform .45s var(--ease)}
.js .reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.06s}
.reveal.d2{transition-delay:.12s}
.reveal.d3{transition-delay:.18s}
.reveal.d4{transition-delay:.24s}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--border-d);padding:72px 0 30px;background:var(--bg-soft)}
.footer-grid{display:grid;grid-template-columns:1.8fr 1fr 1fr 1fr 1fr;gap:38px}
.footer-grid .brand{margin-bottom:16px}
.footer-grid .fdesc{color:var(--on-bg-2);font-size:14px;line-height:1.65;max-width:320px}
.footer-col h4{font-size:13.5px;margin-bottom:16px;color:var(--on-bg);letter-spacing:.02em}
.footer-col a{display:block;color:var(--on-bg-2);font-size:14px;padding:6px 0;transition:color .15s var(--ease)}
.footer-col a:hover{color:var(--on-bg)}
.footer-col .faddr{display:block;color:var(--on-bg-2);font-size:14px;padding:6px 0}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;border-top:1px solid var(--border-d);margin-top:52px;padding-top:22px;color:var(--on-bg-2);font-size:13px}
.footer-bottom .links{display:flex;gap:22px}
.footer-bottom .links a:hover{color:var(--on-bg)}

/* ---------- Anime-specific components ---------- */
.anime-hero{position:relative;min-height:680px;display:flex;align-items:center;justify-content:center;text-align:center;padding:120px 20px 100px;overflow:hidden}
.anime-hero .bg-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.62;z-index:0;filter:saturate(1.15) contrast(1.05)}
.anime-hero .bg-mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,6,26,.35),rgba(8,6,26,.75)),radial-gradient(ellipse at center top,transparent 0%,rgba(8,6,26,.55) 70%);z-index:1}
.hero-title{font-size:clamp(38px,6.5vw,72px);font-weight:900;background:linear-gradient(135deg,#e9a8ff,#ff6b9d,#ffd166);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:18px;text-shadow:0 0 60px rgba(168,85,247,.35)}
.hero-sub{color:var(--on-bg);font-size:clamp(15px,2.2vw,20px);max-width:720px;margin:0 auto;text-shadow:0 2px 12px rgba(0,0,0,.6)}

.tab-bar{display:flex;gap:2px;background:var(--panel-d);border-radius:16px;padding:4px;max-width:680px;margin:0 auto 40px;position:relative;z-index:10;border:1px solid var(--border-d)}
.tab-btn{flex:1;padding:14px 16px;border:none;background:transparent;color:var(--on-bg-2);font-size:15px;font-weight:600;cursor:pointer;border-radius:12px;transition:all .2s}
.tab-btn.active{background:linear-gradient(135deg,rgba(168,85,247,.3),rgba(255,107,157,.2));color:#fff;box-shadow:0 4px 24px rgba(168,85,247,.25)}
.tab-btn:hover:not(.active){color:#fff}
.anime-panel{display:none}
.anime-panel.active{display:block}

.gen-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:768px){.gen-grid{grid-template-columns:1fr}}

.chat-box{height:380px;overflow-y:auto;padding:16px;background:rgba(0,0,0,.22);border-radius:12px;margin-bottom:16px;display:flex;flex-direction:column;gap:12px}
.chat-msg{max-width:85%;padding:12px 16px;border-radius:14px;font-size:14px;line-height:1.7;animation:msgIn .3s ease}
@keyframes msgIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.chat-msg.user{background:linear-gradient(135deg,rgba(168,85,247,.3),rgba(255,107,157,.2));align-self:flex-end;border-bottom-right-radius:4px}
.chat-msg.bot{background:var(--panel-d-2);align-self:flex-start;border-bottom-left-radius:4px}
.chat-msg.bot.typing::after{content:'▍';animation:blink .8s infinite}
@keyframes blink{50%{opacity:0}}
.chat-input-row{display:flex;gap:12px}
.chat-input{flex:1;padding:14px 18px;border-radius:12px;border:1px solid var(--border-d);background:rgba(0,0,0,.35);color:var(--on-bg);font-size:14px;outline:none;transition:border .2s}
.chat-input:focus{border-color:var(--accent)}
.btn-anime{padding:14px 28px;border:none;border-radius:12px;font-size:15px;font-weight:600;cursor:pointer;transition:all .2s;background:linear-gradient(135deg,#6c3bff,#a855f7);color:#fff;white-space:nowrap}
.btn-anime:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(168,85,247,.35)}
.btn-anime:disabled{opacity:.5;cursor:not-allowed;transform:none}
.btn-anime.secondary{background:linear-gradient(135deg,#ff6b9d,#f472b6)}
.btn-anime.danger{background:linear-gradient(135deg,#ef4444,#f87171)}
select.anime-select{width:100%;padding:14px;border-radius:12px;border:1px solid var(--border-d);background:rgba(0,0,0,.35);color:var(--on-bg);font-size:14px;outline:none;cursor:pointer}
textarea.anime-input{width:100%;padding:14px;border-radius:12px;border:1px solid var(--border-d);background:rgba(0,0,0,.35);color:var(--on-bg);font-size:14px;outline:none;resize:vertical;min-height:100px;font-family:inherit;transition:border .2s}
textarea.anime-input:focus{border-color:var(--accent)}
.img-result{width:100%;min-height:220px;border-radius:12px;overflow:hidden;background:rgba(0,0,0,.25);display:flex;align-items:center;justify-content:center;margin-top:16px;position:relative}
.img-result img{max-width:100%;max-height:540px;border-radius:12px}
.img-placeholder{color:var(--on-bg-2);font-size:14px;text-align:center;padding:40px}

.theme-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px;margin-bottom:16px}
.theme-item{border-radius:12px;overflow:hidden;cursor:pointer;border:2px solid transparent;transition:all .2s;position:relative}
.theme-item:hover{border-color:var(--accent);transform:translateY(-2px)}
.theme-item.selected{border-color:var(--accent-3);box-shadow:0 0 24px rgba(255,107,157,.35)}
.theme-item img{width:100%;height:100px;object-fit:cover;display:block}
.theme-item .label{position:absolute;bottom:0;left:0;right:0;padding:4px 8px;background:linear-gradient(transparent,rgba(0,0,0,.85));font-size:12px;text-align:center}

.gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}
.gallery-item{border-radius:12px;overflow:hidden;border:1px solid var(--border-d);transition:all .2s;cursor:pointer}
.gallery-item:hover{transform:translateY(-4px);box-shadow:0 8px 30px rgba(168,85,247,.25);border-color:var(--accent)}
.gallery-item img{width:100%;height:150px;object-fit:cover;display:block}
.gallery-item .info{padding:10px 14px;font-size:13px;color:var(--on-bg-2)}
.theme-badge{display:inline-block;padding:8px 16px;border-radius:20px;font-size:13px;margin:4px;background:linear-gradient(135deg,rgba(168,85,247,.2),rgba(255,107,157,.15));border:1px solid var(--border-d);color:var(--on-bg)}

.video-player{position:relative;aspect-ratio:16/9;background:#000;border-radius:18px;overflow:hidden;border:1px solid var(--border-d);box-shadow:0 20px 60px rgba(0,0,0,.55)}
.video-player video{width:100%;height:100%;object-fit:cover;display:block}

.stage-4k{position:relative;border-radius:22px;overflow:hidden;border:1px solid rgba(168,85,247,.35);background:#000;box-shadow:0 30px 80px rgba(0,0,0,.65),0 0 60px rgba(168,85,247,.12)}
.stage-4k video{width:100%;height:auto;display:block;aspect-ratio:16/9;object-fit:cover}
.stage-4k .stage-overlay{position:absolute;inset:0;pointer-events:none;background:linear-gradient(transparent 60%,rgba(8,6,26,.85));z-index:2}
.stage-4k .stage-pill{position:absolute;top:22px;left:22px;z-index:4;display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:800;color:#fff;background:rgba(0,0,0,.65);border:1px solid rgba(168,85,247,.3);padding:8px 16px;border-radius:100px;backdrop-filter:blur(8px)}
.stage-4k .stage-pill i{width:8px;height:8px;border-radius:50%;background:#00ff88;box-shadow:0 0 12px #00ff88;animation:pulse 1.6s infinite}
.stage-4k .stage-meta{position:absolute;left:0;right:0;bottom:0;padding:26px 30px;z-index:3;display:flex;align-items:flex-end;justify-content:space-between;gap:14px;flex-wrap:wrap;pointer-events:none}
.stage-4k .stage-title{font-size:22px;font-weight:800;color:#fff;text-shadow:0 2px 12px rgba(0,0,0,.7)}
.stage-4k .stage-sub{font-size:14px;color:rgba(255,255,255,.8);margin-top:4px}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}

.workshop-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:24px;align-items:start}
@media(max-width:960px){.workshop-grid{grid-template-columns:1fr}}
.story-form{background:var(--panel-d);border:1px solid var(--border-d);border-radius:16px;padding:22px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
@media(max-width:560px){.form-row{grid-template-columns:1fr}}
.form-label{display:block;font-size:12px;font-weight:600;color:var(--on-bg-2);margin-bottom:6px;text-transform:uppercase;letter-spacing:.5px}
.gen-params{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.param-chip{cursor:pointer;padding:7px 13px;border-radius:20px;font-size:13px;border:1px solid var(--border-d);background:rgba(0,0,0,.25);color:var(--on-bg);transition:.15s}
.param-chip:hover{border-color:var(--accent)}
.param-chip.active{background:linear-gradient(135deg,rgba(168,85,247,.4),rgba(255,107,157,.3));border-color:var(--accent);color:#fff}
.story-steps{display:flex;gap:10px;margin:18px 0 8px;flex-wrap:wrap}
.step{flex:1;min-width:90px;text-align:center;padding:12px 8px;border-radius:12px;background:rgba(0,0,0,.25);border:1px solid var(--border-d);font-size:12px;color:var(--on-bg-2);transition:.2s}
.step.active{background:linear-gradient(135deg,rgba(168,85,247,.3),rgba(255,107,157,.2));border-color:var(--accent);color:#fff;font-weight:700}
.step.done{color:#a3e635;border-color:#a3e635}
.preview-canvas{aspect-ratio:16/9;background:#000;border-radius:14px;overflow:hidden;position:relative;border:1px solid var(--border-d)}
.preview-canvas img,.preview-canvas video{width:100%;height:100%;object-fit:cover;display:block}
.preview-status{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;background:rgba(0,0,0,.65);backdrop-filter:blur(4px)}
.spinner{width:44px;height:44px;border:3px solid rgba(255,255,255,.15);border-top-color:#a855f7;border-radius:50%;animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- Responsive ---------- */
@media(max-width:768px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr!important}
  .dev-grid{grid-template-columns:1fr!important}
  .stats{grid-template-columns:repeat(2,1fr)!important}
  .section{padding:64px 0}
}