:root{--primary: #6d5dfc;--primary-dark: #5544e0;--primary-2: #2fb8ff;--accent: #f7b955;--danger: #e25577;--bg: #f3f1ff;--bg-deep: #eae7ff;--surface: #ffffff;--surface-soft: #f6f4ff;--surface-raised: rgba(255, 255, 255, .76);--text: #201c3f;--muted: #6d6893;--border: #e4e0f5;--border-strong: #cfc8ef;--aurora-a: rgba(109, 93, 252, .16);--aurora-b: rgba(47, 184, 255, .13);--star-bright: rgba(109, 93, 252, .42);--star-soft: rgba(109, 93, 252, .2);--warning-bg: #fff8e7;--warning-border: #f2dfae;--warning-text: #8a6420;--shadow: 0 4px 18px rgba(63, 50, 128, .07);--shadow-lg: 0 24px 60px rgba(53, 38, 120, .13);color-scheme:light}html.dark{--primary: #8f7dff;--primary-dark: #7462f0;--primary-2: #58dcff;--accent: #ffd166;--danger: #ff7a9c;--bg: #06060f;--bg-deep: #0a0918;--surface: #10101f;--surface-soft: #17162e;--surface-raised: rgba(12, 11, 28, .72);--text: #ecebff;--muted: #9c98c9;--border: #272544;--border-strong: #3b3768;--aurora-a: rgba(123, 92, 255, .28);--aurora-b: rgba(56, 189, 248, .16);--star-bright: rgba(255, 255, 255, .82);--star-soft: rgba(160, 220, 255, .5);--warning-bg: rgba(247, 185, 85, .1);--warning-border: rgba(247, 185, 85, .36);--warning-text: #ffd166;--shadow: 0 8px 28px rgba(0, 0, 0, .4);--shadow-lg: 0 26px 70px rgba(0, 0, 0, .55);color-scheme:dark}*{box-sizing:border-box}html{scroll-behavior:smooth}body{min-height:100vh;margin:0;padding-bottom:4rem;color:var(--text);background-color:var(--bg);background-image:radial-gradient(ellipse 95% 55% at 50% -12%,var(--aurora-a),transparent 68%),radial-gradient(ellipse 55% 45% at 106% 16%,var(--aurora-b),transparent 72%),linear-gradient(180deg,var(--bg) 0%,var(--bg-deep) 100%);background-attachment:fixed;font-family:PingFang SC,Microsoft YaHei,Helvetica Neue,Arial,sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}body:before{content:"";position:fixed;top:0;right:0;bottom:0;left:0;z-index:0;pointer-events:none;background-image:radial-gradient(circle at 22% 28%,var(--star-bright) 0 1px,transparent 1.7px),radial-gradient(circle at 68% 12%,var(--star-soft) 0 1.2px,transparent 1.9px),radial-gradient(circle at 84% 64%,var(--star-bright) 0 1px,transparent 1.6px),radial-gradient(circle at 38% 82%,var(--star-soft) 0 1.4px,transparent 2.1px),radial-gradient(circle at 8% 58%,var(--star-soft) 0 1px,transparent 1.6px);background-size:340px 340px,460px 460px,380px 380px,520px 520px,300px 300px;opacity:.72;animation:twinkle 7s ease-in-out infinite alternate}#root{position:relative;z-index:1}@keyframes twinkle{0%{opacity:.36}to{opacity:.8}}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button{cursor:pointer}h1,h2,h3,p{margin:0}:where(a,button,input,select,summary):focus-visible{outline:2px solid var(--primary-2);outline-offset:2px}.shell{width:min(100%,48rem);margin-inline:auto;padding-inline:1rem}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.site-header{position:sticky;top:.75rem;z-index:50;padding:0 1rem}.nav-shell{width:min(100%,48rem);height:3.7rem;margin:0 auto;padding:0 1rem;display:flex;align-items:center;justify-content:space-between;gap:1rem;border:1px solid var(--border);border-radius:999px;background:var(--surface-raised);box-shadow:var(--shadow),inset 0 1px #ffffff14;-webkit-backdrop-filter:blur(16px) saturate(1.25);backdrop-filter:blur(16px) saturate(1.25)}.brand{display:inline-flex;align-items:center;gap:.65rem;min-width:0;font-weight:800;white-space:nowrap}.brand-mark{width:2.05rem;height:2.05rem;flex:0 0 auto;background:linear-gradient(150deg,#ffe08a,#b29bff 46%,#62d8ff);clip-path:polygon(50% 0%,60.5% 39.5%,100% 50%,60.5% 60.5%,50% 100%,39.5% 60.5%,0% 50%,39.5% 39.5%);filter:drop-shadow(0 0 9px rgba(139,123,255,.65));transition:transform .35s ease;animation:star-pulse 5.5s ease-in-out infinite}.brand:hover .brand-mark{transform:rotate(72deg)}@keyframes star-pulse{0%,to{filter:drop-shadow(0 0 8px rgba(139,123,255,.5))}50%{filter:drop-shadow(0 0 14px rgba(111,214,255,.8))}}.brand-text{display:grid;gap:.12rem;line-height:1.05}.brand-text strong{font-size:1.02rem;letter-spacing:.02em}.brand-text small{color:var(--muted);font-size:.55rem;font-weight:700;letter-spacing:.18em}.nav-links{display:flex;align-items:center;gap:.25rem}.nav-link{padding:.5rem .95rem;border-radius:999px;color:var(--muted);font-size:.875rem;transition:color .16s,background .16s}.nav-link:hover{color:var(--primary);background:var(--surface-soft)}.nav-link.active{color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-2));box-shadow:0 6px 18px color-mix(in srgb,var(--primary) 35%,transparent)}.mobile-menu-button{display:none;width:2.25rem;height:2.25rem;align-items:center;justify-content:center;border:0;border-radius:999px;color:var(--muted);background:transparent}.mobile-menu-button:hover{color:var(--primary);background:var(--surface-soft)}.mobile-menu{display:none;width:min(calc(100% - 2rem),48rem);margin:.5rem auto 0;padding:.5rem;border:1px solid var(--border);border-radius:1rem;background:var(--surface-raised);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.mobile-menu.open{display:block}.mobile-menu a{display:block;padding:.65rem .75rem;border-radius:.75rem;color:var(--muted);font-size:.9rem}.mobile-menu a.active{color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-2))}.hero{position:relative;padding:3.1rem 0 1.6rem;text-align:center}.hero-inner{display:flex;flex-direction:column;align-items:center}.hero-badge{display:inline-flex;align-items:center;gap:.5rem;padding:.42rem .85rem;border:1px solid var(--border);border-radius:999px;color:var(--muted);background:var(--surface-raised);box-shadow:var(--shadow);font-size:.75rem;font-weight:650;letter-spacing:.02em;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.badge-star{width:.58rem;height:.58rem;background:linear-gradient(135deg,var(--accent),var(--primary-2));clip-path:polygon(50% 0%,61% 39%,100% 50%,61% 61%,50% 100%,39% 61%,0% 50%,39% 39%)}.hero h1{margin:1.1rem 0 .7rem;font-size:clamp(1.85rem,5vw,2.7rem);line-height:1.16;letter-spacing:.01em;background:linear-gradient(120deg,var(--text) 12%,var(--primary) 58%,var(--primary-2) 105%);-webkit-background-clip:text;background-clip:text;color:transparent}.subtitle{max-width:38rem;margin:0 auto;color:var(--muted);font-size:.96rem;line-height:1.7}.hero-meta{margin-top:1.15rem;display:flex;flex-wrap:wrap;justify-content:center;gap:.45rem}.hero-meta span{padding:.32rem .7rem;border:1px solid var(--border);border-radius:999px;color:var(--muted);background:color-mix(in srgb,var(--surface) 55%,transparent);font-size:.74rem}.tool{position:relative;padding:1.15rem;border:1px solid var(--border);border-radius:1.6rem;background:linear-gradient(180deg,var(--surface-raised),var(--surface) 26%);box-shadow:var(--shadow-lg),inset 0 1px #ffffff12;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);overflow:hidden}.tool:before{content:"";position:absolute;inset:0 0 auto;height:1px;background:linear-gradient(90deg,transparent,var(--primary),var(--primary-2),transparent);opacity:.75}.tool:after{content:"";position:absolute;top:-9rem;right:-8rem;width:20rem;height:20rem;border-radius:50%;background:radial-gradient(circle,var(--aurora-a),transparent 68%);pointer-events:none}.tool-head{position:relative;z-index:1;margin-bottom:.9rem;display:flex;align-items:center;justify-content:space-between;gap:.75rem}.mode-tabs{display:inline-flex;gap:.25rem;padding:.28rem;border:1px solid var(--border);border-radius:999px;background:color-mix(in srgb,var(--surface-soft) 82%,transparent)}.mode-tab{min-width:6.4rem;height:2.35rem;padding:0 1rem;display:inline-flex;align-items:center;justify-content:center;gap:.42rem;border:0;border-radius:999px;color:var(--muted);background:transparent;font-size:.85rem;font-weight:700;transition:color .16s,background .16s,box-shadow .16s}.mode-icon{display:inline-flex}.mode-tab:hover{color:var(--primary)}.mode-tab.active{color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-2));box-shadow:0 8px 20px color-mix(in srgb,var(--primary) 38%,transparent)}.tab-badge{padding:.1rem .3rem;border-radius:999px;color:#3b2a03;background:var(--accent);font-size:.55rem;font-weight:800;letter-spacing:.04em}.local-pill{display:inline-flex;align-items:center;gap:.4rem;padding:.42rem .72rem;border:1px solid var(--border);border-radius:999px;color:var(--muted);background:var(--surface-soft);font-size:.72rem;font-weight:650;white-space:nowrap}.local-dot{width:.42rem;height:.42rem;border-radius:50%;background:#46d39a;box-shadow:0 0 8px #46d39ae6}.tip{position:relative;z-index:1;margin-bottom:.9rem;padding:.78rem .9rem;border:1px solid var(--warning-border);border-radius:.8rem;color:var(--warning-text);background:var(--warning-bg);font-size:.82rem;line-height:1.65}.settings{position:relative;z-index:1;margin-bottom:.9rem;padding:.95rem;display:grid;grid-template-columns:minmax(12rem,1.2fr) minmax(11rem,1fr) 6.5rem;gap:.8rem;border:1px solid var(--border);border-radius:1rem;background:color-mix(in srgb,var(--surface-soft) 78%,transparent)}.field{display:grid;gap:.4rem;min-width:0}.field-label{display:inline-flex;align-items:center;gap:.42rem;color:var(--muted);font-size:.78rem;font-weight:700}.step-dot{width:1.1rem;height:1.1rem;display:grid;place-items:center;flex:0 0 auto;border:1px solid color-mix(in srgb,var(--primary) 35%,transparent);border-radius:50%;color:var(--primary);background:color-mix(in srgb,var(--primary) 12%,transparent);font-size:.6rem;font-style:normal;font-weight:800}.field select,.field input{width:100%;min-height:2.55rem;padding:0 .75rem;border:1px solid var(--border);border-radius:.75rem;color:var(--text);background:var(--surface);outline:none;transition:border-color .16s,box-shadow .16s}.field input::placeholder{color:color-mix(in srgb,var(--muted) 72%,transparent)}.field select:focus,.field input:focus{border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 18%,transparent)}.field select:disabled,.field input:disabled{opacity:.6}.mode-hint{grid-column:1 / -1;color:var(--muted);font-size:.78rem;line-height:1.55}.param-error{grid-column:1 / -1;color:var(--danger);font-size:.78rem;font-weight:700;line-height:1.5}.image-area{position:relative;z-index:1;margin-bottom:.9rem}.placeholder{position:relative;min-height:17.5rem;padding:2rem;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.8rem;border:1px dashed var(--border-strong);border-radius:1.05rem;color:var(--muted);background:radial-gradient(ellipse 60% 50% at 50% 0%,color-mix(in srgb,var(--primary) 9%,transparent),transparent 70%),var(--surface-soft);cursor:pointer;overflow:hidden;transition:border-color .18s,background .18s,transform .18s,box-shadow .18s}.placeholder:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background-image:radial-gradient(circle at 18% 24%,var(--star-soft) 0 1px,transparent 1.5px),radial-gradient(circle at 78% 66%,var(--star-soft) 0 1.2px,transparent 1.7px),radial-gradient(circle at 42% 82%,var(--star-bright) 0 1px,transparent 1.5px);background-size:180px 180px,240px 240px,210px 210px;opacity:.5;pointer-events:none}.placeholder:hover,.placeholder.dragging{border-color:var(--primary);background:radial-gradient(ellipse 65% 55% at 50% 0%,color-mix(in srgb,var(--primary) 16%,transparent),transparent 72%),var(--surface-soft);box-shadow:0 0 0 4px color-mix(in srgb,var(--primary) 10%,transparent);transform:translateY(-2px)}.placeholder-icon{width:3.6rem;height:3.6rem;display:grid;place-items:center;border:1px solid color-mix(in srgb,var(--primary) 30%,transparent);border-radius:50%;color:var(--primary);background:var(--surface);box-shadow:0 0 22px color-mix(in srgb,var(--primary) 20%,transparent)}.placeholder strong{color:var(--text);font-size:1rem}.placeholder small{max-width:26rem;text-align:center;line-height:1.55}.image-wrapper{border:1px solid var(--border);border-radius:1.05rem;overflow:hidden;background:var(--surface-soft);line-height:0;box-shadow:var(--shadow)}#preview{width:100%;max-height:31.25rem;display:block;object-fit:contain}.video-area{position:relative;z-index:1;margin-bottom:.9rem}.video-wrapper{border:1px solid var(--border);border-radius:1.05rem;overflow:hidden;background:#000;line-height:0;box-shadow:var(--shadow)}#video-preview{width:100%;max-height:31.25rem;display:block;background:#000}.video-progress{position:relative;z-index:1;margin-bottom:.9rem;display:grid;gap:.45rem}.progress-track{height:.5rem;border-radius:999px;background:var(--border);overflow:hidden}.progress-bar{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--primary),var(--primary-2));box-shadow:0 0 14px color-mix(in srgb,var(--primary-2) 55%,transparent);transition:width .2s ease}.video-progress span{color:var(--muted);font-size:.78rem}.loading{position:absolute;top:0;right:0;bottom:0;left:0;z-index:2;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.75rem;border-radius:1.05rem;color:var(--muted);background:color-mix(in srgb,var(--surface) 82%,transparent);font-size:.875rem;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.spinner{width:2.6rem;height:2.6rem;border-radius:50%;background:conic-gradient(from 0deg,transparent 0 62%,var(--primary) 84%,var(--primary-2));-webkit-mask:radial-gradient(farthest-side,transparent calc(100% - 4px),#000 calc(100% - 3px));mask:radial-gradient(farthest-side,transparent calc(100% - 4px),#000 calc(100% - 3px));animation:spin .95s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.controls{position:relative;z-index:1;display:flex;flex-wrap:wrap;align-items:center;gap:.625rem}.button{min-width:5.2rem;height:2.55rem;padding:0 1.05rem;display:inline-flex;align-items:center;justify-content:center;gap:.45rem;border:1px solid var(--border);border-radius:.8rem;color:var(--text);background:var(--surface);font-size:.875rem;font-weight:700;transition:background .16s,border-color .16s,color .16s,opacity .16s,transform .16s,box-shadow .16s}.button[hidden]{display:none}.button:hover:not(:disabled):not([aria-disabled=true]){border-color:color-mix(in srgb,var(--border) 35%,var(--primary) 65%);color:var(--primary);background:color-mix(in srgb,var(--surface) 86%,var(--primary) 14%);box-shadow:0 8px 20px color-mix(in srgb,var(--primary) 14%,transparent);transform:translateY(-1px)}.button:disabled,.button[aria-disabled=true]{opacity:.45;cursor:not-allowed;transform:none}.button.primary{margin-left:auto;border-color:transparent;color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-2));box-shadow:0 10px 24px color-mix(in srgb,var(--primary) 32%,transparent)}.button.primary:hover:not(:disabled):not([aria-disabled=true]){color:#fff;background:linear-gradient(135deg,var(--primary-dark),var(--primary-2));box-shadow:0 14px 30px color-mix(in srgb,var(--primary) 42%,transparent)}.button.danger{color:var(--danger)}.button.danger:hover:not(:disabled):not([aria-disabled=true]){border-color:color-mix(in srgb,var(--danger) 55%,transparent);color:var(--danger);background:color-mix(in srgb,var(--surface) 88%,var(--danger) 12%)}.audio-toggle{display:inline-flex;align-items:center;gap:.5rem;height:2.55rem;padding:0 .35rem;color:var(--text);font-size:.875rem;font-weight:700;cursor:pointer;-webkit-user-select:none;user-select:none}.audio-toggle input{-moz-appearance:none;appearance:none;-webkit-appearance:none;width:2.2rem;height:1.2rem;margin:0;flex:0 0 auto;border-radius:999px;background:var(--border-strong);position:relative;cursor:pointer;transition:background .16s,box-shadow .16s}.audio-toggle input:after{content:"";position:absolute;top:2px;left:2px;width:calc(1.2rem - 4px);height:calc(1.2rem - 4px);border-radius:50%;background:#fff;box-shadow:0 1px 4px #00000047;transition:transform .16s ease}.audio-toggle input:checked{background:linear-gradient(135deg,var(--primary),var(--primary-2));box-shadow:0 0 12px color-mix(in srgb,var(--primary) 35%,transparent)}.audio-toggle input:checked:after{transform:translate(1rem)}.audio-toggle:has(input:disabled){opacity:.5;cursor:not-allowed}.audio-toggle:has(input:disabled) input{cursor:not-allowed}.meta{position:relative;z-index:1;margin-top:.8rem;color:var(--muted);font-size:.78rem;line-height:1.6}.runtime-error{color:var(--danger);font-weight:700}.about-section{padding-top:2.75rem;padding-bottom:0}.about-card{position:relative;padding:2rem;border:1px solid var(--border);border-radius:1.4rem;background:linear-gradient(160deg,var(--surface),color-mix(in srgb,var(--surface-soft) 80%,var(--primary) 20%));box-shadow:var(--shadow);overflow:hidden}.about-card:before{content:"";position:absolute;top:-7rem;right:-5rem;width:18rem;height:18rem;border-radius:50%;background:radial-gradient(circle,color-mix(in srgb,var(--primary) 24%,transparent),transparent 68%);pointer-events:none}.about-kicker{position:relative;display:inline-flex;align-items:center;gap:.45rem;padding:.34rem .72rem;border:1px solid color-mix(in srgb,var(--primary) 30%,transparent);border-radius:999px;color:var(--primary);background:color-mix(in srgb,var(--primary) 10%,transparent);font-size:.72rem;font-weight:800;letter-spacing:.06em}.about-kicker:before{content:"";width:.52rem;height:.52rem;background:linear-gradient(135deg,var(--accent),var(--primary-2));clip-path:polygon(50% 0%,61% 39%,100% 50%,61% 61%,50% 100%,39% 61%,0% 50%,39% 39%)}.about-card h2{position:relative;margin:.9rem 0 .75rem;text-align:left;font-size:clamp(1.3rem,3.4vw,1.65rem)}.about-lead{position:relative;max-width:40rem;color:var(--text);font-size:.94rem;line-height:1.8}.about-list{position:relative;margin:1.2rem 0 0;padding:0;display:grid;gap:.62rem;list-style:none}.about-list li{position:relative;padding-left:1.35rem;color:var(--muted);font-size:.88rem;line-height:1.7}.about-list li:before{content:"";position:absolute;left:0;top:.58em;width:.48rem;height:.48rem;background:linear-gradient(135deg,var(--accent),var(--primary-2));clip-path:polygon(50% 0%,61% 39%,100% 50%,61% 61%,50% 100%,39% 61%,0% 50%,39% 39%)}.about-list strong{color:var(--text)}.about-note{position:relative;margin-top:1.2rem;padding-top:1rem;border-top:1px dashed var(--border-strong);color:var(--muted);font-size:.82rem;line-height:1.65}.section{padding:4rem 0;scroll-margin-top:5rem}.section h2{margin-bottom:1rem;text-align:center;font-size:clamp(1.45rem,4vw,1.9rem);line-height:1.25}.section-intro{max-width:42rem;margin:0 auto 2rem;color:var(--muted);text-align:center;line-height:1.7}.feature-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1rem}.feature{position:relative;min-height:11rem;padding:1.35rem;border:1px solid var(--border);border-radius:1rem;background:color-mix(in srgb,var(--surface) 92%,transparent);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);transition:transform .18s,border-color .18s,box-shadow .18s}.feature:hover{border-color:color-mix(in srgb,var(--border) 40%,var(--primary) 60%);box-shadow:0 16px 36px color-mix(in srgb,var(--primary) 13%,transparent);transform:translateY(-3px)}.feature-icon{width:2.5rem;height:2.5rem;margin-bottom:.8rem;display:grid;place-items:center;border-radius:.8rem;color:#fff;background:linear-gradient(145deg,var(--primary),var(--primary-2));box-shadow:0 8px 18px color-mix(in srgb,var(--primary) 26%,transparent);font-weight:800}.feature-badge{position:absolute;top:1rem;right:1rem;padding:.14rem .4rem;border-radius:999px;color:#3b2a03;background:var(--accent);font-size:.58rem;font-weight:800;letter-spacing:.04em}.feature h3{margin-bottom:.45rem;font-size:1rem}.feature p{color:var(--muted);font-size:.875rem;line-height:1.65}.faq-list{display:grid;gap:.75rem}details{border:1px solid var(--border);border-radius:1rem;background:color-mix(in srgb,var(--surface) 92%,transparent);box-shadow:var(--shadow);overflow:hidden;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}summary{min-height:4rem;padding:1rem 1.25rem;display:flex;align-items:center;justify-content:space-between;gap:1rem;cursor:pointer;list-style:none;font-weight:600}summary::-webkit-details-marker{display:none}summary:hover{background:var(--surface-soft)}.chevron{width:1.2rem;height:1.2rem;flex:0 0 auto;color:var(--primary);transition:transform .16s}details[open]{border-color:color-mix(in srgb,var(--border) 45%,var(--primary) 55%)}details[open] .chevron{transform:rotate(180deg)}.answer{padding:1rem 1.25rem 1.25rem;border-top:1px solid var(--border);color:var(--muted);line-height:1.75}.related-list{display:grid;gap:.75rem}.related-card{padding:1rem 1.2rem;display:flex;align-items:center;gap:1rem;border:1px solid var(--border);border-radius:1rem;background:color-mix(in srgb,var(--surface) 92%,transparent);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);transition:transform .18s,border-color .18s,box-shadow .18s}.related-card:hover{border-color:color-mix(in srgb,var(--border) 40%,var(--primary) 60%);box-shadow:0 16px 36px color-mix(in srgb,var(--primary) 13%,transparent);transform:translateY(-2px)}.related-thumb{width:4rem;height:4rem;flex:0 0 auto;display:grid;place-items:center;border-radius:.8rem;color:#fff;font-weight:800}.star-thumb{background:linear-gradient(90deg,rgba(255,255,255,.26) 1px,transparent 1px),linear-gradient(0deg,rgba(255,255,255,.2) 1px,transparent 1px),linear-gradient(145deg,#6d5dfc,#2fb8ff);background-size:9px 9px,9px 9px,auto;box-shadow:0 8px 20px #6d5dfc47}.tomato-thumb{background:radial-gradient(circle at 50% 26%,#52c46e 0 15%,transparent 16%),radial-gradient(circle at 38% 34%,#ff9a8a 0 12%,transparent 13%),radial-gradient(circle at 50% 58%,#ff7a6b 0,#ff7a6b 48%,#df4640 72%);box-shadow:0 8px 20px #df46403d}.related-card h3{margin-bottom:.25rem;font-size:1rem}.related-card p{color:var(--muted);font-size:.875rem;line-height:1.55}.site-footer{margin-top:4rem;border-top:1px solid var(--border);background:color-mix(in srgb,var(--surface-soft) 88%,transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.footer-grid{padding:3rem 1rem;display:grid;grid-template-columns:1.2fr 1.1fr .7fr;gap:2rem}.site-footer h3{margin-bottom:.75rem;font-size:1rem}.site-footer p,.site-footer li{color:var(--muted);font-size:.875rem;line-height:1.7}.site-footer ul{margin:0;padding:0;display:grid;gap:.45rem;list-style:none}.site-footer li a:hover{color:var(--primary)}.copyright{padding:1.2rem 0;border-top:1px solid var(--border);color:var(--muted);text-align:center;font-size:.875rem}.float-menu{position:fixed;right:1rem;bottom:1rem;z-index:40;display:flex;flex-direction:column;gap:.5rem}.float-button{width:2.5rem;height:2.5rem;display:grid;place-items:center;border:1px solid var(--border);border-radius:50%;color:var(--muted);background:var(--surface-raised);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);transition:color .16s,transform .16s,opacity .16s}.float-button:hover{color:var(--primary);transform:scale(1.08)}.float-button:not(.visible){opacity:0;pointer-events:none;transform:translateY(.8rem)}.notice{position:fixed;right:0;bottom:0;left:0;z-index:30;padding:.68rem 1rem;border-top:1px solid var(--border);color:var(--muted);background:var(--surface-raised);text-align:center;font-size:.8rem;line-height:1.5;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}@media (max-width: 760px){body{padding-bottom:4.6rem}.nav-links{display:none}.mobile-menu-button{display:inline-flex}.hero{padding-top:2.2rem}.tool{padding:1rem}.tool-head{align-items:stretch;flex-direction:column}.mode-tabs{width:100%}.mode-tab{flex:1 1 0;min-width:0}.local-pill{align-self:flex-start}.settings{grid-template-columns:1fr}.controls{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.5rem}.button{min-width:0;padding-inline:.5rem;font-size:.82rem}.button.primary{grid-column:span 3;margin-left:0}.audio-toggle{grid-column:span 2;height:2.4rem}#preview{max-height:22.5rem}.feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.about-card{padding:1.5rem}.footer-grid{grid-template-columns:1fr;gap:1.5rem}}@media (max-width: 460px){.shell{padding-inline:.8rem}.brand-text small{display:none}.mode-tab{padding-inline:.55rem;font-size:.8rem}.tab-badge{display:none}.placeholder{min-height:17rem;padding:1.35rem}.feature-grid{grid-template-columns:1fr}.related-card{align-items:flex-start}.notice{font-size:.74rem}}@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}body:before,.brand-mark,.spinner{animation:none}.button,.feature,.related-card,.placeholder,.brand-mark,.float-button{transition:none}}