:root{--bg:#0e0b09;--panel:rgba(255,255,255,.075);--line:rgba(255,202,149,.18);--text:#fff4e8;--muted:#b9a99c;--accent:#d99a5b;--accent2:#ffcb8a;--danger:#ff746d;--success:#7ef0bd;--shadow:0 30px 120px rgba(0,0,0,.45);--radius:28px}
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p{color:var(--muted);line-height:1.75}.workspace-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:22px;padding:64px 0 90px}.workspace-main{padding:30px}.workspace-heading{display:flex;justify-content:space-between;gap:22px;align-items:flex-start;margin-bottom:26px}.workspace-heading h1{font-size:clamp(36px,5vw,58px)}.balance-card{min-width:150px;padding:18px;border:1px solid var(--line);border-radius:22px;background:rgba(0,0,0,.18)}.balance-card span,.balance-card small{color:var(--muted);display:block}.balance-card strong{font-size:34px}.generation-form label,.auth-card label{display:block;margin:18px 0 8px;color:#ffe5c8;font-weight:800}.generation-form textarea,.generation-form select,.auth-card input{width:100%;color:var(--text);background:rgba(0,0,0,.22);border:1px solid rgba(255,255,255,.13);border-radius:18px;padding:15px 16px;outline:none}.generation-form textarea:focus,.generation-form select:focus,.auth-card 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var(--line);background:rgba(255,255,255,.09);text-align:center}.loader-ring{width:62px;height:62px;border-radius:50%;border:4px solid rgba(255,255,255,.14);border-top-color:var(--accent2);margin:0 auto 18px;animation:rotate 1s linear infinite}@keyframes rotate{to{transform:rotate(360deg)}}.task-grid{grid-template-columns:repeat(3,1fr);padding-bottom:80px}.task-card{border:1px solid var(--line);background:rgba(255,255,255,.055);border-radius:26px;overflow:hidden;transition:.25s ease}.task-thumb{height:240px;background:linear-gradient(135deg,#25140d,#d99a5b);display:grid;place-items:center}.task-thumb img{width:100%;height:100%;object-fit:cover}.empty-thumb{font-size:36px;font-weight:900;opacity:.7}.task-body{padding:18px}.task-body h3{min-height:48px}.status{display:inline-flex;padding:6px 10px;border-radius:999px;font-size:12px;font-weight:900;background:rgba(255,255,255,.10)}.status.succeeded{color:var(--success)}.status.failed{color:var(--danger)}.status.running{color:var(--accent2)}.detail-layout{display:grid;grid-template-columns:minmax(0,1fr) 420px;gap:24px;padding:64px 0 90px}.detail-gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;align-content:start}.result-image-card{border:1px solid var(--line);background:rgba(255,255,255,.055);border-radius:28px;overflow:hidden}.result-image-card img{width:100%;display:block}.result-image-card a{display:block;padding:14px 18px;color:var(--accent2);font-weight:800}.detail-panel{padding:28px;position:sticky;top:98px}.detail-panel h1{font-size:42px}.meta-row{display:flex;justify-content:space-between;gap:10px;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.08)}.meta-row span{color:var(--muted)}.prompt-box{padding:14px;border-radius:16px;background:rgba(0,0,0,.23);color:#ffe7cc;line-height:1.7;white-space:pre-wrap}.prompt-box.small{font-size:13px;color:var(--muted);max-height:230px;overflow:auto}.auth-shell{min-height:calc(100vh - 190px);display:grid;place-items:center;padding:70px 0}.auth-card{width:min(520px,100%);padding:34px}.auth-card h1{font-size:46px}.auth-card p{color:var(--muted);text-align:center}.auth-card p a{color:var(--accent2);font-weight:800}.form-error{margin:12px 0;padding:12px 14px;border-radius:14px;background:rgba(255,116,109,.12);color:#ffd1cd;border:1px solid rgba(255,116,109,.25)}.stats-grid{grid-template-columns:repeat(4,1fr);margin-bottom:24px}.stats-grid article span,.stats-grid article small{color:var(--muted);display:block}.stats-grid article strong{display:block;font-size:38px;margin:8px 0}.ledger-card{padding:24px}.ledger-list{display:grid;gap:12px}.ledger-list div{display:grid;grid-template-columns:150px 80px 1fr;gap:14px;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.08)}.ledger-list span,.ledger-list p{color:var(--muted);margin:0}.empty-state{padding:40px;text-align:center;color:var(--muted)}.message-stack{position:fixed;right:24px;top:86px;z-index:50;display:grid;gap:10px}.message{padding:14px 16px;border-radius:16px;border:1px solid var(--line);background:rgba(17,13,10,.9);box-shadow:var(--shadow)}.message.success{color:var(--success)}.message.error{color:#ffb7b2}.site-footer{border-top:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between;gap:22px;padding:36px 5vw;color:var(--muted)}.site-footer strong{color:var(--text)}.footer-links{display:flex;gap:16px}
@media (max-width:980px){.nav-links{display:none}.hero,.workspace-layout,.detail-layout{grid-template-columns:1fr}.style-grid,.pricing-grid,.task-grid,.stats-grid{grid-template-columns:1fr 1fr}.example-grid{grid-template-columns:1fr 1fr}.detail-panel{position:static}}
@media (max-width:640px){.site-header{flex-wrap:wrap}.header-actions{width:100%;justify-content:space-between}.hero{padding-top:54px}.hero-prompt div,.workspace-heading,.site-footer{flex-direction:column}.feature-strip,.style-grid,.example-grid,.pricing-grid,.task-grid,.stats-grid,.detail-gallery,.form-row{grid-template-columns:1fr}h1{font-size:42px}}

/* v4: 首页示例图兜底视觉，避免 seed_demo 未执行时 Gallery 空白 */
.art-card{position:relative;min-height:220px;display:flex;flex-direction:column;justify-content:flex-end;padding:20px;isolation:isolate;background:var(--grad);overflow:hidden}
.art-card:before{content:"";position:absolute;inset:-30%;z-index:-1;background:radial-gradient(circle at 30% 18%,rgba(255,255,255,.42),transparent 24%),radial-gradient(circle at 74% 34%,rgba(0,0,0,.28),transparent 32%),radial-gradient(circle at 30% 82%,rgba(255,255,255,.22),transparent 28%);animation:float 8s ease-in-out infinite}
.art-card:after{content:"";position:absolute;left:12%;right:12%;bottom:20%;height:36%;border-radius:32px;background:linear-gradient(135deg,rgba(255,255,255,.28),rgba(255,255,255,.06));border:1px solid rgba(255,255,255,.22);box-shadow:0 22px 60px rgba(0,0,0,.22);z-index:-1}
.art-card span{display:inline-flex;align-self:flex-start;padding:7px 11px;border-radius:999px;background:rgba(0,0,0,.24);color:#fff;font-size:11px;font-weight:900;letter-spacing:.12em;margin-bottom:auto}
.art-card strong{color:#fff;font-size:22px;line-height:1.15;text-shadow:0 8px 30px rgba(0,0,0,.35)}
.generation-form button[disabled]{opacity:.7;cursor:wait}
/* v6 gallery upgrade: make sample visuals look like a real portfolio, not placeholder cards. */
.example-grid{grid-template-columns:repeat(4,1fr);gap:22px}.example-card{min-height:420px;background:rgba(255,255,255,.055);border-color:rgba(255,211,168,.18);box-shadow:0 26px 70px rgba(0,0,0,.28);transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease}.example-card:hover{transform:translateY(-8px);border-color:rgba(255,216,178,.48);box-shadow:0 34px 88px rgba(0,0,0,.42)}.example-card img{height:285px;object-fit:cover;filter:saturate(1.06) contrast(1.04);transition:transform .6s ease,filter .3s ease}.example-card:hover img{transform:scale(1.045);filter:saturate(1.12) contrast(1.07)}.example-card div:last-child{min-height:135px;padding:22px;background:linear-gradient(180deg,rgba(0,0,0,.1),rgba(0,0,0,.48))}.example-card h3{font-size:21px;letter-spacing:-.03em}.example-card p{font-size:14px;color:rgba(255,244,231,.82)}.example-fallback.art-card{min-height:285px;background:var(--grad);display:flex;flex-direction:column;justify-content:flex-end;padding:24px}.example-fallback.art-card span{font-size:12px;letter-spacing:.16em;color:#ffe4bd;font-weight:900}.example-fallback.art-card strong{font-size:26px;color:#fff;margin-top:8px}
@media (max-width:980px){.example-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:640px){.example-grid{grid-template-columns:1fr}.example-card img{height:260px}}
/* v7: prompt quality hint, automatic model tier switching, and revised credit pricing. */
.prompt-quality-note{margin:6px 0 12px;color:#ffe0b7;background:rgba(217,154,91,.10);border:1px solid rgba(255,205,154,.18);border-radius:16px;padding:12px 14px;font-size:13px;line-height:1.65}.prompt-quality-note.compact{margin:10px 10px 2px;padding:9px 12px;background:rgba(0,0,0,.18)}.model-policy-card{display:grid;grid-template-columns:1fr auto;gap:18px;align-items:center;margin:0 0 24px;padding:18px;border:1px solid rgba(255,205,154,.20);border-radius:24px;background:linear-gradient(135deg,rgba(217,154,91,.16),rgba(255,255,255,.045))}.model-policy-card strong{display:block;font-size:20px;margin:4px 0;color:#fff2df}.model-policy-card p{margin:0;color:var(--muted);line-height:1.65;font-size:14px}.policy-kicker{color:var(--accent2);font-size:12px;font-weight:900;letter-spacing:.12em;text-transform:uppercase}.policy-price{min-width:120px;text-align:center;border-radius:22px;background:rgba(0,0,0,.22);border:1px solid rgba(255,255,255,.12);padding:14px}.policy-price span,.policy-price small{display:block;color:var(--muted);font-size:12px}.policy-price strong{font-size:36px;color:var(--accent2);margin:0}.side-note{color:var(--muted);line-height:1.75;margin:0}.pricing-note{max-width:820px;margin:10px auto 0;color:#ffe0b7!important;background:rgba(217,154,91,.10);border:1px solid rgba(255,205,154,.18);border-radius:18px;padding:12px 16px;font-size:14px}.price-card span{display:block;margin-top:6px}.generation-form select option{background:#17110d;color:#fff4e8}
@media (max-width:640px){.model-policy-card{grid-template-columns:1fr}.policy-price{text-align:left}}

/* v9 multilingual language selector */
.language-menu{position:relative;z-index:40}
.language-menu summary{list-style:none;cursor:pointer;border:1px solid rgba(255,213,165,.22);background:rgba(255,255,255,.07);border-radius:999px;padding:.62rem .95rem;color:#ffe9cf;font-weight:700;font-size:.9rem;white-space:nowrap}
.language-menu summary::-webkit-details-marker{display:none}
.language-list{position:absolute;right:0;top:calc(100% + 10px);display:grid;grid-template-columns:repeat(2,minmax(110px,1fr));gap:.25rem;min-width:260px;padding:.55rem;border:1px solid rgba(255,213,165,.18);background:rgba(15,10,8,.96);backdrop-filter:blur(18px);border-radius:18px;box-shadow:0 20px 60px rgba(0,0,0,.45)}
.language-list a{padding:.62rem .7rem;border-radius:12px;color:#ead8c6;text-decoration:none;font-size:.88rem}
.language-list a:hover,.language-list a.active{background:rgba(217,154,91,.18);color:#fff2df}
@media (max-width: 760px){.language-list{right:auto;left:0;grid-template-columns:1fr;min-width:190px}.header-actions{gap:.45rem}.language-menu summary{padding:.55rem .75rem}}

/* v10 PayPal pricing and paid-credit access */
.paypal-buy-form{margin-top:18px}.paypal-button{width:100%;display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:18px;padding:14px 18px;background:linear-gradient(135deg,#ffc439,#ffdf7e);color:#201407;font-weight:900;cursor:pointer;box-shadow:0 18px 44px rgba(255,196,57,.18);text-decoration:none;transition:transform .2s ease,filter .2s ease}.paypal-button:hover{transform:translateY(-2px);filter:brightness(1.05)}.paypal-button.secondary{background:rgba(255,255,255,.08);color:#fff0dd;border:1px solid rgba(255,255,255,.16);box-shadow:none}.link-button{margin-top:18px}.payment-explain-card{margin:34px auto 0;max-width:960px;border:1px solid rgba(255,213,165,.18);background:rgba(255,255,255,.055);border-radius:28px;padding:24px 28px;color:var(--muted);line-height:1.75}.payment-explain-card h2{color:#fff4e8;margin:0 0 8px}.tier-stat{font-size:30px!important}

.payment-actions{display:grid;gap:10px;margin-top:18px}.payment-actions form{margin:0}.paypay-buy-form{margin-top:18px}.paypay-button{width:100%;display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:18px;padding:14px 18px;background:linear-gradient(135deg,#ff0033,#ff6a6a);color:white;font-weight:900;cursor:pointer;box-shadow:0 18px 44px rgba(255,0,51,.18);text-decoration:none;transition:transform .2s ease,filter .2s ease}.paypay-button:hover{transform:translateY(-2px);filter:brightness(1.05)}.paypay-page{padding:72px 0 90px}.paypay-status-card{max-width:820px;margin:0 auto;border:1px solid rgba(255,213,165,.18);background:rgba(255,255,255,.055);border-radius:32px;padding:34px;box-shadow:var(--shadow)}.paypay-status-card h1{font-size:clamp(34px,5vw,58px);line-height:1.05;margin:0 0 18px}.paypay-lead{color:var(--muted);line-height:1.85;font-size:17px}.paypay-order-box{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:26px 0}.paypay-order-box div{border:1px solid rgba(255,255,255,.12);background:rgba(0,0,0,.18);border-radius:20px;padding:16px}.paypay-order-box span{display:block;color:var(--muted);font-size:12px;margin-bottom:8px}.paypay-order-box strong{font-size:20px;color:#fff4e8}.paypay-actions{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:20px}.paypay-cancel-form{margin-top:18px;text-align:center}.paypay-cancel-form button{border:0;background:transparent;color:var(--muted);cursor:pointer;text-decoration:underline}.paypay-small-note{color:var(--muted);font-size:13px;line-height:1.7;margin-top:18px}@media(max-width:760px){.paypay-order-box,.paypay-actions{grid-template-columns:1fr}.paypay-status-card{padding:24px}}

/* v12: admin premium users, selectable model tier, localized errors, and watermark notices */
.model-watermark-note{margin:14px 0 18px;padding:14px 16px;border:1px solid rgba(255,205,154,.18);background:rgba(217,154,91,.10);border-radius:18px;color:#ffe8c9;line-height:1.7}.model-watermark-note strong{display:block;color:#fff4e8;margin-bottom:4px}.model-watermark-note p{margin:0;color:#d9c6b7}.form-error ul{margin:0;padding-left:1.25rem}.form-error li{margin:.28rem 0}.generation-form select[name="model_tier"]{border-color:rgba(255,205,154,.28);background:rgba(217,154,91,.10);font-weight:800}.admin-premium-note{color:#ffe0b7;font-size:13px;line-height:1.65}

/* v13: stronger multilingual notices for model/watermark explanations */
.model-notice{margin:14px 0;padding:14px 16px;border:1px solid rgba(255,205,154,.22);background:rgba(217,154,91,.12);border-radius:18px;color:#ffe8c9;line-height:1.7}
.model-notice strong{display:block;color:#fff4e8;margin-bottom:6px}
.model-notice ul{margin:6px 0 0;padding-left:1.2rem}
.model-notice li{margin:4px 0;color:#f4d7bd}
.model-notice.compact{margin-top:12px;background:rgba(0,0,0,.18)}
.model-notice.compact small{display:block;margin-top:8px;color:#d9c6b7}
.model-notice.wide{max-width:1060px;margin:0 auto}
.model-notice-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:10px}
.model-notice-grid span{display:block;padding:10px 12px;border-radius:14px;background:rgba(0,0,0,.18);border:1px solid rgba(255,255,255,.08)}
.hero-model-notice{margin-top:18px}
.pricing-model-notice{max-width:820px;margin:14px auto 0;text-align:left}
@media(max-width:760px){.model-notice-grid{grid-template-columns:1fr}}