:root{--primary: #4f46e5;--primary-hover: #4338ca;--bg: #f6f7fb;--panel: rgba(255, 255, 255, .92);--border: rgba(148, 163, 184, .35);--shadow: 0 22px 60px rgba(15, 23, 42, .08);--shadow-sm: 0 14px 34px rgba(15, 23, 42, .06);--text-main: #0f172a;--text-muted: #64748b;--topbar-h: 64px;--radius-lg: 18px;--radius-xl: 24px;--hero-bg: radial-gradient(900px 520px at 50% 10%, rgba(79, 70, 229, .18), transparent 60%), radial-gradient(700px 420px at 10% 20%, rgba(14, 165, 233, .12), transparent 60%), radial-gradient(700px 420px at 90% 30%, rgba(168, 85, 247, .1), transparent 60%), linear-gradient(135deg, #f8fafc 0%, #eef2ff 45%, #ecfeff 100%)}html,body{margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:system-ui,Arial,sans-serif;background:var(--bg);color:var(--text-main);padding-top:var(--topbar-h)}main{display:block}h1,h2,h3,p{margin:0}p{line-height:1.65;color:var(--text-muted)}.muted{color:var(--text-muted)}.container{max-width:1000px;margin:0 auto;padding:0 2rem}.page{padding:3rem 0 4rem}.topbar{position:fixed;top:0;left:0;right:0;width:100%;z-index:9999;background:#f6f7fbb8;backdrop-filter:blur(12px);border-bottom:1px solid var(--border);box-shadow:0 8px 30px #0f172a0a}.topbar-inner{height:var(--topbar-h);display:grid;grid-template-columns:1fr auto 1fr;align-items:center;column-gap:54px}.nav{display:flex;align-items:center}.nav-left{justify-self:end}.topbar-right{display:flex;align-items:center;width:100%;gap:10px}.topbar-right .lang-switch{margin-left:auto}.nav-right{justify-self:center}.nav a{text-decoration:none;color:#475569;font-weight:800;font-size:.95rem;padding:7px 10px;border-radius:999px;border:1px solid transparent;transition:background .15s ease,color .15s ease,border-color .15s ease,transform .12s ease}.nav a:hover{background:#4f46e51f;border-color:#4f46e52e;color:var(--primary);transform:translateY(-1px)}.brand{justify-self:center;display:inline-flex;align-items:center;text-decoration:none}.brand-mark{width:36px;height:36px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,var(--primary),#6366f1);color:#fff;font-size:13px;font-weight:900;box-shadow:0 10px 28px #4f46e559}.topbar.is-compact .topbar-inner{height:56px}.topbar.is-compact .brand-mark{transform:scale(.96)}.panel{background:linear-gradient(180deg,#fffffff2,#ffffffe0);border-radius:var(--radius-xl);border:1px solid var(--border);box-shadow:var(--shadow-sm);padding:2.2rem}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:14px}.back-link{text-decoration:none;color:#475569;font-weight:900;padding:7px 10px;border-radius:999px;border:1px solid transparent;transition:background .15s ease,border-color .15s ease,color .15s ease,transform .12s ease}.back-link:hover{background:#4f46e51f;border-color:#4f46e52e;color:var(--primary);transform:translateY(-1px)}.page-title{font-size:2rem;font-weight:950;letter-spacing:-.6px;color:var(--text-main)}.page-subtitle{margin-top:8px}.primary-btn,button{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 16px;border-radius:14px;text-decoration:none;font-weight:900;background:linear-gradient(180deg,var(--primary) 0%,#3f37c9 100%);color:#fff;border:1px solid rgba(255,255,255,.22);box-shadow:0 14px 34px #4f46e538;cursor:pointer;transition:transform .15s ease,filter .15s ease}.primary-btn:hover,button:hover{filter:brightness(1.02);transform:translateY(-1px) scale(1.02)}button:disabled,.primary-btn[aria-disabled=true]{opacity:.65;cursor:not-allowed;transform:none!important;filter:none!important}select,input[type=text],input[type=number]{width:100%;max-width:420px;margin-top:8px;padding:10px 12px;border-radius:12px;border:1px solid rgba(148,163,184,.45);background:#fffffff2;font-size:14px;color:var(--text-main);outline:none}input[type=range]{width:min(520px,100%);accent-color:var(--primary)}.upload-state[hidden]{display:none!important}.upload-box{border-radius:18px;padding:34px 24px;text-align:center;box-shadow:0 16px 44px #0f172a0f;border:1px solid rgba(148,163,184,.35);background:#ffffffa6;transition:transform .18s ease,border-color .18s ease,background .18s ease}.upload-box.is-dragover{background:#eef6fff2;border-color:#4f46e58c;transform:translateY(-2px)}.upload-state{display:flex;flex-direction:column;align-items:center;gap:10px}.upload-icon{font-size:36px;color:#4f46e5b3}.upload-text{font-size:14px;color:#334155}.choose-link{color:var(--primary);cursor:pointer;text-decoration:none;font-weight:900}.choose-link:hover{color:var(--primary-hover)}.upload-spinner{width:28px;height:28px;border:3px solid rgba(199,210,254,.9);border-top-color:#2563eb;border-radius:50%;animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.upload-state.is-done .upload-text{color:#065f46}.upload-state.is-done b{color:#047857}.upload-state.is-done:before{content:"✓";display:inline-block;font-size:34px;color:#10b981;margin-bottom:8px}.preview-frame{margin-top:10px;width:100%;height:360px;border-radius:18px;border:1px solid rgba(148,163,184,.45);overflow:hidden;position:relative;display:block;background-image:linear-gradient(45deg,#e5e7eb 25%,transparent 25%),linear-gradient(-45deg,#e5e7eb 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#e5e7eb 75%),linear-gradient(-45deg,transparent 75%,#e5e7eb 75%);background-size:16px 16px;background-position:0 0,0 8px,8px -8px,-8px 0px}.preview-frame canvas{display:block;width:100%;height:100%}.mini-hero{position:relative;border-radius:18px;padding:18px 18px 16px;border:1px solid rgba(148,163,184,.35);background:radial-gradient(600px 260px at 20% 0%,rgba(79,70,229,.1),transparent 60%),radial-gradient(520px 240px at 90% 10%,rgba(14,165,233,.08),transparent 60%),linear-gradient(135deg,#f8fafce6,#eef2ffd9 60%,#ecfeffd9);overflow:hidden;opacity:0;transform:translateY(8px);transition:opacity .38s ease,transform .52s cubic-bezier(.22,.61,.36,1)}.mini-hero.is-entered{opacity:1;transform:translateY(0)}.badge{display:inline-block;background:#e0e7ffd9;color:var(--primary);padding:7px 12px;border-radius:999px;font-size:.78rem;font-weight:900;text-transform:uppercase;letter-spacing:.6px;border:1px solid rgba(79,70,229,.15)}.mini-hero .page-title{margin-top:10px}.mini-features{margin-top:10px;display:flex;gap:10px;flex-wrap:wrap;color:var(--text-muted);font-weight:850;font-size:.92rem}@keyframes successGlow{0%{box-shadow:0 0 #10b98100;transform:translateY(0)}35%{box-shadow:0 18px 55px #10b98140;transform:translateY(-1px)}to{box-shadow:0 0 #10b98100;transform:translateY(0)}}.success-glow{animation:successGlow .9s ease}.nav a.is-active{background:#4f46e51f;border-color:#4f46e538;color:var(--primary)}.breadcrumb{display:flex;align-items:center;gap:8px;font-size:.92rem;color:var(--text-muted);margin:6px 0 0;font-weight:800}.breadcrumb a{color:var(--text-muted);text-decoration:none;border-bottom:1px dashed rgba(100,116,139,.45)}.breadcrumb a:hover{color:var(--primary);border-bottom-color:#4f46e573}.breadcrumb .sep{opacity:.65}.lang-switch{display:inline-flex;gap:6px;padding:6px;border-radius:999px;border:1px solid var(--border);background:#ffffffb8;box-shadow:0 10px 26px #0f172a0f;backdrop-filter:blur(10px)}.lang-btn{appearance:none;border:1px solid transparent;background:transparent;color:#475569;font-weight:900;font-size:.85rem;padding:6px 10px;border-radius:999px;cursor:pointer;transition:background .15s ease,color .15s ease,border-color .15s ease,transform .12s ease}.lang-btn:hover{transform:translateY(-1px);background:#4f46e51a;border-color:#4f46e52e;color:var(--primary)}.lang-btn.is-active{background:linear-gradient(135deg,#4f46e52e,#6366f124);border-color:#4f46e559;color:var(--primary)}.hero-wrap{margin-top:18px}.hero-box{padding:4.5rem 0 3rem;text-align:center;background:var(--hero-bg);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:0 18px 50px #0f172a0f;position:relative}.hero-box:before{content:"";position:absolute;inset:-14px;background:#ffffff57;border:1px solid rgba(148,163,184,.25);border-radius:22px;box-shadow:0 14px 44px #0f172a14;backdrop-filter:blur(10px);z-index:0}.hero-box>*{position:relative;z-index:1}.footer-wrap{padding:18px 0 26px}.footer{background:transparent!important;border:0!important;box-shadow:none!important;padding:0!important}.footer-box{background:#ffffffbf;border:1px solid var(--border);border-radius:18px;padding:14px 16px}.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;color:var(--text-main);font-weight:850}@media(max-width:768px){.container{padding:0 1.2rem}.topbar-inner{column-gap:10px}.page-title{font-size:1.6rem}.hero-box{padding:3.2rem 1rem}}@media(max-width:560px){.topbar-inner{height:auto;grid-template-columns:1fr;row-gap:10px;padding:10px 0;justify-items:center}.nav-left,.nav-right{justify-self:center}.topbar-right{justify-self:center;justify-content:center}.lang-switch{justify-content:center}}@media(max-width:520px){.preview-frame{height:260px}}#tools,#roadmap{scroll-margin-top:calc(var(--topbar-h) + 18px)}.hero-box h1{font-size:3.3rem;font-weight:950;color:var(--text-main);margin-top:1.2rem;letter-spacing:-1px}.hero-box p{font-size:1.12rem;max-width:720px;margin:1rem auto 0}.hero-cta{margin-top:22px;display:flex;gap:12px;justify-content:center;align-items:center;flex-wrap:wrap}.hero-note{font-weight:800;font-size:.95rem}.section-head{margin-bottom:18px;text-align:left}.section-head h2{margin-bottom:6px;font-size:1.6rem;letter-spacing:-.5px;color:var(--text-main)}.tools-grid{padding:3.5rem 0}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.6rem}.tool-card{position:relative;background:linear-gradient(180deg,#fffffff2,#ffffffe0);padding:2.4rem;border-radius:var(--radius-xl);text-decoration:none;color:inherit;border:1px solid var(--border);box-shadow:var(--shadow-sm);display:flex;flex-direction:column;align-items:flex-start;transition:transform .25s cubic-bezier(.22,.61,.36,1),box-shadow .25s ease,border-color .25s ease;will-change:transform}.tool-card:hover{transform:translateY(-10px) scale(1.015);box-shadow:0 28px 70px #0f172a1f,0 0 0 1px #4f46e526;border-color:#4f46e573}.tool-card:before{content:"";position:absolute;inset:0;border-radius:inherit;background:linear-gradient(120deg,transparent 20%,rgba(255,255,255,.45),transparent 80%);opacity:0;transform:translate(-60%);transition:opacity .25s ease,transform .6s ease;pointer-events:none}.tool-card:hover:before{opacity:1;transform:translate(60%)}.tool-card h3{font-size:1.45rem;font-weight:950;margin-bottom:.65rem;letter-spacing:-.3px;color:var(--text-main)}.tool-card p{font-size:1rem;margin:0 0 1.2rem;line-height:1.6;color:#475569e6}.card-icon{padding:1rem;border-radius:16px;margin-bottom:1.2rem;border:1px solid rgba(148,163,184,.22)}.card-icon.blue{background:#3b82f61a;color:#2563eb}.card-icon.purple{background:#a855f71a;color:#7c3aed}.btn-text{font-weight:900;color:var(--primary);font-size:.95rem;display:inline-flex;align-items:center;gap:4px;transition:gap .18s ease,color .18s ease}.tool-card:hover .btn-text{gap:8px;color:var(--primary-hover)}.features-wrap{padding:1.8rem 0}.features-box{background:#ffffffb3;border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:0 14px 34px #0f172a0f;padding:16px 14px}.features-inner{display:flex;justify-content:center;gap:2.2rem;flex-wrap:wrap;color:var(--text-muted);font-size:.95rem;font-weight:850}.roadmap-wrap{padding:3rem 0 4rem}.roadmap-box{background:#ffffffa6;border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:0 14px 34px #0f172a0f;padding:22px 18px}.soon-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin-top:14px}.soon-card{border:1px dashed rgba(148,163,184,.6);border-radius:18px;padding:16px;background:#f8fafce6}.soon-title{font-weight:950;color:var(--text-main);margin-bottom:6px}.soon-desc{color:var(--text-muted);line-height:1.5;font-size:.95rem}@media(max-width:768px){.hero-box h1{font-size:2.4rem}}