:root{--color-fg: #1f2330;--color-fg-soft: #4a5160;--color-bg: #ffffff;--color-bg-soft: #fff8ec;--color-accent: #d97706;--color-accent-strong: #b45309;--color-accent-soft: #fef3c7;--color-border: #e7e5e0;--color-border-strong: #d6d3cb;--color-error: #c0392b;--color-success: #0e8a4f;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-pill: 999px;--shadow-sm: 0 1px 2px rgba(31, 35, 48, .05), 0 1px 4px rgba(31, 35, 48, .04);--shadow-md: 0 4px 12px -4px rgba(31, 35, 48, .1), 0 2px 4px -2px rgba(31, 35, 48, .06);--shadow-lg: 0 12px 32px -12px rgba(217, 119, 6, .18), 0 4px 8px -4px rgba(31, 35, 48, .06);--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 2rem;--space-xl: 4rem;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans SC", "Noto Sans Thai", "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", Tahoma, "宋体", sans-serif;--font-mono: "SF Mono", Monaco, Consolas, monospace;--max-width: 1200px}*,*:before,*:after{box-sizing:border-box}html{overflow-wrap:break-word;word-break:break-word}html,body{margin:0;padding:0;font-family:var(--font-sans);color:var(--color-fg);background:var(--color-bg);line-height:1.65;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1{font-size:2rem;margin:0 0 var(--space-md);letter-spacing:-.01em}h2{font-size:1.5rem;margin:var(--space-lg) 0 var(--space-sm);letter-spacing:-.005em}h3{font-size:1.25rem;margin:var(--space-md) 0 var(--space-sm)}a{color:var(--color-accent-strong);text-decoration:none;transition:color .15s ease}a:hover{color:var(--color-accent);text-decoration:underline;text-underline-offset:3px}button{font-family:inherit;font-size:1rem;padding:.6rem 1.1rem;border:1px solid var(--color-border-strong);background:var(--color-bg);color:var(--color-fg);cursor:pointer;border-radius:var(--radius-md);transition:all .15s ease;font-weight:500}button:hover:not(:disabled){border-color:var(--color-accent);color:var(--color-accent-strong);transform:translateY(-1px);box-shadow:var(--shadow-sm)}button:active:not(:disabled){transform:translateY(0)}button:disabled{opacity:.45;cursor:not-allowed}input,textarea,select{font-family:inherit;font-size:1rem;padding:.6rem .85rem;border:1px solid var(--color-border-strong);border-radius:var(--radius-md);width:100%;background:var(--color-bg);color:var(--color-fg);transition:border-color .15s ease,box-shadow .15s ease}input:hover,textarea:hover,select:hover{border-color:var(--color-accent)}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 3px var(--color-accent-soft)}.container{max-width:var(--max-width);margin:0 auto;padding:0 var(--space-md)}.site-header{border-bottom:1px solid var(--color-border);padding:var(--space-md) 0;background:var(--color-bg);position:sticky;top:0;z-index:30;backdrop-filter:saturate(180%) blur(8px);-webkit-backdrop-filter:saturate(180%) blur(8px);background:#ffffffd9}.site-header .container{display:flex;justify-content:space-between;align-items:center;gap:var(--space-md)}.site-header a.brand{font-weight:700;font-size:1.2rem;color:var(--color-fg);display:inline-flex;align-items:center;gap:.5rem}.site-header a.brand:before{content:"";display:inline-block;width:1.4rem;height:1.4rem;background:linear-gradient(135deg,var(--color-accent) 0%,var(--color-accent-strong) 100%);border-radius:4px;box-shadow:inset 0 0 0 2px #ffffffd9,0 1px 3px #d977064d;position:relative}.site-header a.brand:hover{text-decoration:none;color:var(--color-accent-strong)}.site-nav{display:flex;align-items:center;gap:var(--space-md)}.site-nav>a{font-size:.95rem;font-weight:500;color:var(--color-fg-soft);padding:.35rem .6rem;border-radius:var(--radius-sm)}.site-nav>a:hover{color:var(--color-accent-strong);background:var(--color-accent-soft);text-decoration:none}.locale-switcher{position:relative;margin-left:var(--space-sm)}.locale-switcher>summary{display:inline-flex;align-items:center;gap:.45rem;list-style:none;cursor:pointer;font-size:.875rem;padding:.45rem .9rem;border:1px solid var(--color-border-strong);border-radius:var(--radius-pill);background:var(--color-bg);color:var(--color-fg);user-select:none;font-weight:500;transition:border-color .15s ease,background-color .15s ease,box-shadow .15s ease}.locale-switcher>summary::-webkit-details-marker{display:none}.locale-switcher>summary::marker{content:""}.locale-switcher>summary:hover{border-color:var(--color-accent);background:var(--color-accent-soft)}.locale-switcher[open]>summary{border-color:var(--color-accent);background:var(--color-accent-soft);box-shadow:0 0 0 3px #d977062e}.locale-globe{font-size:1.05rem;line-height:1}.locale-caret{font-size:.7rem;color:var(--color-fg-soft);transition:transform .18s ease}.locale-switcher[open]>summary .locale-caret{transform:rotate(180deg)}.locale-menu{position:absolute;top:calc(100% + 8px);right:0;margin:0;padding:.4rem;min-width:200px;list-style:none;background:var(--color-bg);border:1px solid var(--color-border-strong);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);z-index:50}.locale-menu li{margin:0}.locale-menu a{display:flex;align-items:center;justify-content:space-between;gap:.75rem;padding:.55rem .75rem;font-size:.92rem;color:var(--color-fg);border-radius:var(--radius-sm);text-decoration:none;transition:background-color .12s ease}.locale-menu a:hover{background:var(--color-accent-soft);text-decoration:none}.locale-menu a.active{background:var(--color-accent-soft);color:var(--color-accent-strong);font-weight:600}.locale-code{font-size:.7rem;letter-spacing:.06em;color:#888;font-weight:500}.locale-menu a.active .locale-code{color:var(--color-accent)}.site-footer{border-top:1px solid var(--color-border);padding:var(--space-xl) 0 var(--space-lg);margin-top:var(--space-xl);font-size:.875rem;text-align:center;background:linear-gradient(180deg,var(--color-bg) 0%,var(--color-bg-soft) 100%);color:var(--color-fg-soft)}.site-footer p{margin:var(--space-xs) 0}.site-footer a{color:var(--color-fg-soft);font-weight:500}.site-footer a:hover{color:var(--color-accent-strong)}.site-footer .footer-tagline{font-size:.95rem;color:var(--color-fg);margin-bottom:var(--space-md)!important}.tool-page{padding:var(--space-xl) 0 var(--space-lg)}.tool-page h1{font-size:2.25rem;background:linear-gradient(135deg,var(--color-fg) 0%,var(--color-accent-strong) 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;display:inline-block}.tool-page .tool-subtitle{color:var(--color-fg-soft);font-size:1.05rem;margin-bottom:var(--space-lg)}.tool-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-lg);align-items:start}@media (max-width: 900px){.tool-grid{grid-template-columns:1fr}}.tool-section{border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-lg);background:var(--color-bg);box-shadow:var(--shadow-sm);transition:box-shadow .2s ease}.tool-section:hover{box-shadow:var(--shadow-md)}.preview-canvas-wrapper{display:flex;justify-content:center;align-items:center;padding:var(--space-lg);background:linear-gradient(135deg,#fffdf7 0%,var(--color-bg-soft) 100%);border:1px dashed var(--color-border-strong);border-radius:var(--radius-md);min-height:320px}.preview-canvas-wrapper canvas,.preview-canvas-wrapper svg{max-width:100%;height:auto;border-radius:var(--radius-sm);box-shadow:var(--shadow-md)}.type-picker{display:grid;grid-template-columns:repeat(auto-fill,minmax(96px,1fr));gap:var(--space-sm);margin-bottom:var(--space-lg)}.type-picker button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.35rem;padding:.7rem .5rem;min-height:72px;font-size:.875rem;font-weight:500;border-radius:var(--radius-md);border:1px solid var(--color-border-strong);background:var(--color-bg);color:var(--color-fg);position:relative}.type-picker button .type-icon{font-size:1.3rem;line-height:1}.type-picker button:hover:not(.is-active){border-color:var(--color-accent);background:var(--color-accent-soft);transform:translateY(-2px);box-shadow:var(--shadow-sm)}.type-picker button.is-active{background:linear-gradient(135deg,var(--color-accent) 0%,var(--color-accent-strong) 100%);color:#fff;border-color:var(--color-accent-strong);box-shadow:0 4px 12px -4px #d9770673}.type-picker button.is-active:hover{transform:translateY(-1px)}.input-form .field{margin-bottom:var(--space-md)}.input-form .field label{display:block;font-size:.875rem;font-weight:600;margin-bottom:var(--space-xs);color:var(--color-fg)}.input-form .field .error{color:var(--color-error);font-size:.78rem;margin-top:var(--space-xs);font-weight:500}.customization-panel{margin-top:var(--space-lg);padding-top:var(--space-lg);border-top:1px dashed var(--color-border-strong)}.customization-panel h3{margin-top:0}.customization-panel .row{display:grid;grid-template-columns:130px 1fr;gap:var(--space-sm);align-items:center;margin-bottom:var(--space-md)}.customization-panel .row label{font-size:.875rem;font-weight:500;color:var(--color-fg-soft)}.download-buttons{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-sm);margin-top:var(--space-lg)}.download-buttons button{font-weight:600;background:var(--color-accent-soft);border-color:var(--color-accent);color:var(--color-accent-strong)}.download-buttons button:hover:not(:disabled){background:linear-gradient(135deg,var(--color-accent) 0%,var(--color-accent-strong) 100%);color:#fff;border-color:var(--color-accent-strong)}@media (max-width: 480px){.download-buttons{grid-template-columns:1fr}}.tool-unsupported{padding:var(--space-md) var(--space-lg);background:#fef2f2;border:1px solid #fca5a5;color:var(--color-error);border-radius:var(--radius-md);font-weight:500}.tool-fix-errors{font-size:.78rem;color:var(--color-fg-soft);margin-top:var(--space-sm);text-align:center;font-style:italic}.logo-warning{font-size:.78rem;color:var(--color-accent-strong);background:var(--color-accent-soft);padding:var(--space-sm) var(--space-md);border-radius:var(--radius-md);margin-top:var(--space-sm);border-left:3px solid var(--color-accent)}.landing-hero{padding:var(--space-xl) 0 calc(var(--space-xl) * .85);text-align:center;background:radial-gradient(circle at 20% 10%,var(--color-accent-soft) 0%,transparent 40%),radial-gradient(circle at 80% 30%,#fff4e0 0%,transparent 35%),linear-gradient(180deg,#fffaf0 0%,var(--color-bg) 100%);border-radius:var(--radius-lg);margin:var(--space-lg) 0 var(--space-xl)}.landing-hero h1{font-size:clamp(1.85rem,3.5vw,2.6rem);margin-bottom:var(--space-md);background:linear-gradient(135deg,var(--color-fg) 0%,var(--color-accent-strong) 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;font-weight:800;letter-spacing:-.015em}.landing-hero p{font-size:1.125rem;color:var(--color-fg-soft);max-width:640px;margin:0 auto var(--space-lg);line-height:1.7}.landing-hero .cta{display:inline-block;background:linear-gradient(135deg,var(--color-accent) 0%,var(--color-accent-strong) 100%);color:#fff;padding:.85rem 2rem;border-radius:var(--radius-pill);font-weight:600;font-size:1.05rem;box-shadow:0 6px 20px -6px #d977068c;transition:transform .15s ease,box-shadow .15s ease}.landing-hero .cta:hover{color:#fff;text-decoration:none;transform:translateY(-2px);box-shadow:0 10px 28px -8px #d97706a6}.landing-howto{padding:var(--space-xl) 0}.landing-howto h2{text-align:center}.landing-howto ol{max-width:640px;margin:0 auto;padding-left:0;list-style:none;counter-reset:howto-step}.landing-howto ol li{counter-increment:howto-step;position:relative;padding:var(--space-md) var(--space-md) var(--space-md) 3.5rem;margin-bottom:var(--space-sm);border-radius:var(--radius-md);background:var(--color-bg);border:1px solid var(--color-border);transition:border-color .15s ease,box-shadow .15s ease}.landing-howto ol li:hover{border-color:var(--color-accent);box-shadow:var(--shadow-sm)}.landing-howto ol li:before{content:counter(howto-step);position:absolute;left:1rem;top:50%;transform:translateY(-50%);width:2rem;height:2rem;background:linear-gradient(135deg,var(--color-accent) 0%,var(--color-accent-strong) 100%);color:#fff;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:.95rem;box-shadow:0 2px 6px #d977064d}.landing-howto ol li code{background:var(--color-accent-soft);color:var(--color-accent-strong);padding:.1rem .4rem;border-radius:var(--radius-sm);font-size:.9em;font-weight:500}.landing-faq{padding:var(--space-xl) 0;background:linear-gradient(180deg,var(--color-bg) 0%,var(--color-bg-soft) 100%);border-radius:var(--radius-lg);margin:var(--space-xl) 0}.landing-faq h2{text-align:center}.landing-faq details{max-width:700px;margin:0 auto var(--space-sm);padding:var(--space-md) var(--space-lg);background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-md);transition:border-color .15s ease,box-shadow .15s ease}.landing-faq details:hover{border-color:var(--color-accent)}.landing-faq details[open]{border-color:var(--color-accent);box-shadow:var(--shadow-sm)}.landing-faq summary{cursor:pointer;font-weight:600;font-size:1.02rem;list-style:none;display:flex;justify-content:space-between;align-items:center}.landing-faq summary::-webkit-details-marker{display:none}.landing-faq summary:after{content:"+";font-size:1.4rem;color:var(--color-accent);font-weight:400;transition:transform .2s ease;flex-shrink:0;margin-left:var(--space-md)}.landing-faq details[open] summary:after{content:"−"}.landing-faq details[open] summary{margin-bottom:var(--space-sm)}.landing-related{padding:var(--space-xl) 0}.landing-related h2{text-align:center}.landing-related ul{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:var(--space-sm);list-style:none;padding:0;max-width:900px;margin:0 auto}.landing-related li a{display:block;padding:var(--space-md) var(--space-md);border:1px solid var(--color-border-strong);border-radius:var(--radius-md);font-weight:500;color:var(--color-fg);background:var(--color-bg);transition:all .15s ease}.landing-related li a:hover{border-color:var(--color-accent);background:var(--color-accent-soft);color:var(--color-accent-strong);text-decoration:none;transform:translateY(-2px);box-shadow:var(--shadow-sm)}