:root{--blue-950:#0a1628;--blue-900:#0f1f3d;--blue-800:#1a3260;--blue-700:#1e4080;--blue-600:#2563eb;--blue-500:#3b82f6;--blue-400:#60a5fa;--blue-100:#dbeafe;--blue-50:#eff6ff;--accent:#0ea5e9;--green-700:#15803d;--green-600:#16a34a;--green-100:#dcfce7;--green-50:#f0fdf4;--wa-green:#25d366;--amber-600:#d97706;--amber-50:#fffbeb;--purple-600:#7c3aed;--surface:#f8faff;--white:#ffffff;--text-primary:#0a1628;--text-secondary:#4b5e7e;--text-muted:#8499b8;--border:#e2eaf8;--radius-sm:8px;--radius-md:12px;--radius-lg:20px;--radius-xl:28px;--radius-full:100px;--shadow-sm:0 1px 4px rgba(10,22,40,.07);--shadow-md:0 4px 20px rgba(37,99,235,.10);--shadow-lg:0 8px 40px rgba(37,99,235,.15);--shadow-blue:0 8px 32px rgba(37,99,235,.22)}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}body{font-family:'DM Sans',sans-serif;background:var(--white);color:var(--text-primary);overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}button{cursor:pointer;border:none;background:none;font-family:inherit}
.container{max-width:1100px;margin:0 auto;padding:0 24px}.container-sm{max-width:800px;margin:0 auto;padding:0 24px}
.section{padding:80px 0}.section-sm{padding:56px 0}
.tag{display:inline-flex;align-items:center;gap:6px;font-family:'Plus Jakarta Sans',sans-serif;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:5px 12px;border-radius:var(--radius-full);border:1px solid var(--blue-100);background:var(--blue-50);color:var(--blue-600)}
.highlight{color:var(--blue-600)}
.btn-primary{display:inline-flex;align-items:center;gap:8px;background:var(--blue-600);color:var(--white);font-family:'Plus Jakarta Sans',sans-serif;font-size:15px;font-weight:700;padding:13px 26px;border-radius:var(--radius-full);box-shadow:var(--shadow-blue);transition:all .2s;border:none}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 40px rgba(37,99,235,.35)}
.btn-white{display:inline-flex;align-items:center;gap:8px;background:var(--white);color:var(--blue-700);font-family:'Plus Jakarta Sans',sans-serif;font-size:15px;font-weight:700;padding:13px 26px;border-radius:var(--radius-full);box-shadow:0 4px 16px rgba(0,0,0,.1);transition:all .2s}
.btn-outline{display:inline-flex;align-items:center;gap:8px;background:transparent;color:var(--blue-600);font-family:'Plus Jakarta Sans',sans-serif;font-size:15px;font-weight:600;padding:12px 24px;border-radius:var(--radius-full);border:1.5px solid var(--blue-200);transition:all .2s}
.fade-up{opacity:0;transform:translateY(24px);transition:opacity .5s ease,transform .5s ease}
.fade-up.visible{opacity:1;transform:translateY(0)}
.d1{transition-delay:.1s}.d2{transition-delay:.2s}.d3{transition-delay:.3s}
.breadcrumb{background:var(--surface);padding:10px 0;border-bottom:1px solid var(--border);font-size:13px;color:var(--text-muted)}
.breadcrumb a{color:var(--text-secondary)}.breadcrumb-current{color:var(--blue-600);font-weight:600}
.section-headline{font-family:'Plus Jakarta Sans',sans-serif;font-weight:800;font-size:clamp(28px,4vw,44px);line-height:1.15;letter-spacing:-.02em;text-align:center}
.section-sub{font-size:17px;color:var(--text-secondary);max-width:600px;margin:14px auto 0;text-align:center;line-height:1.6}
.final-card{background:linear-gradient(135deg,var(--blue-900),var(--blue-800));border-radius:var(--radius-xl);padding:64px 48px;text-align:center;position:relative;overflow:hidden}
.final-card::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 50% 80% at 90% 50%,rgba(37,99,235,.15) 0%,transparent 60%)}
.final-card-content{position:relative;z-index:1}
.faq-list{display:flex;flex-direction:column;gap:10px;margin-top:48px}
.faq-item{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;padding:18px 22px;text-align:left;font-family:'Plus Jakarta Sans',sans-serif;font-size:15px;font-weight:600;color:var(--text-primary);cursor:pointer;transition:background .2s}
.faq-q:hover{background:var(--blue-50)}.faq-chevron{width:18px;height:18px;color:var(--text-muted);flex-shrink:0;transition:transform .3s}.faq-item.open .faq-chevron{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease,padding .35s;font-size:14px;color:var(--text-secondary);line-height:1.7;padding:0 22px}
.faq-item.open .faq-a{max-height:400px;padding:0 22px 18px}

#hero{background:var(--surface);padding:60px 0 0;background-image:radial-gradient(ellipse 60% 50% at 50% 0%,rgba(37,99,235,.06) 0%,transparent 70%)}
.hero-text{text-align:center;max-width:680px;margin:0 auto 48px}
.hero-h1{font-family:'Plus Jakarta Sans',sans-serif;font-weight:800;font-size:clamp(32px,5vw,56px);line-height:1.1;letter-spacing:-.03em;margin:14px 0 18px}
.free-badge{display:inline-flex;align-items:center;gap:6px;background:var(--green-50);color:var(--green-700);border:1px solid var(--green-100);border-radius:var(--radius-full);padding:5px 14px;font-size:13px;font-weight:700;margin-bottom:16px}

.tool-card{background:var(--white);border:1.5px solid var(--border);border-radius:var(--radius-xl);overflow:hidden;box-shadow:0 20px 60px rgba(37,99,235,.10);max-width:820px;margin:0 auto 64px}
.tc-header{background:var(--blue-950);padding:12px 20px;display:flex;align-items:center;gap:8px}
.tc-dots{display:flex;gap:5px}.tc-dot{width:10px;height:10px;border-radius:50%}
.tc-title{font-size:13px;font-weight:700;color:rgba(255,255,255,.5);margin-left:8px}
.tc-body{padding:32px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:20px}
.form-group{margin-bottom:20px}
.form-label{display:block;font-size:13px;font-weight:700;color:var(--text-primary);margin-bottom:7px}
.form-label span{color:var(--text-muted);font-weight:500}
.form-input{width:100%;background:var(--surface);border:1.5px solid var(--border);border-radius:var(--radius-md);padding:11px 14px;font-size:14px;color:var(--text-primary);outline:none;transition:border-color .2s;font-family:'DM Sans',sans-serif}
.form-input:focus{border-color:var(--blue-400);background:var(--white)}
.form-textarea{width:100%;background:var(--surface);border:1.5px solid var(--border);border-radius:var(--radius-md);padding:11px 14px;font-size:14px;color:var(--text-primary);outline:none;transition:border-color .2s;font-family:'DM Sans',sans-serif;resize:vertical;min-height:80px}
.form-textarea:focus{border-color:var(--blue-400);background:var(--white)}
.form-hint{font-size:11px;color:var(--text-muted);margin-top:5px}
.generate-btn{width:100%;padding:14px;font-size:16px;border-radius:var(--radius-full);font-family:'Plus Jakarta Sans',sans-serif;font-weight:800;background:var(--blue-600);color:#fff;border:none;cursor:pointer;transition:all .2s;box-shadow:var(--shadow-blue);margin-bottom:20px}
.generate-btn:hover{transform:translateY(-2px);box-shadow:0 12px 40px rgba(37,99,235,.35)}

.result-area{display:none;background:var(--surface);border:1.5px solid var(--border);border-radius:var(--radius-xl);padding:20px;margin-top:8px}
.result-area.show{display:block}
.result-label{font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin-bottom:8px}
.result-link-box{background:var(--white);border:1.5px solid var(--border);border-radius:var(--radius-md);padding:14px 16px;font-size:14px;color:var(--text-primary);word-break:break-all;font-family:monospace;margin-bottom:12px;cursor:text;transition:border-color .2s}
.result-link-box:hover{border-color:var(--blue-400)}
.result-actions{display:flex;gap:10px;flex-wrap:wrap}
.result-btn{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;border-radius:var(--radius-full);font-family:'Plus Jakarta Sans',sans-serif;font-weight:700;font-size:13px;cursor:pointer;transition:all .2s;border:none}
.rb-primary{background:var(--wa-green);color:#fff}.rb-primary:hover{filter:brightness(1.1);transform:translateY(-1px)}
.rb-secondary{background:var(--blue-600);color:#fff}.rb-secondary:hover{transform:translateY(-1px)}
.rb-outline{background:var(--white);color:var(--text-primary);border:1.5px solid var(--border)}.rb-outline:hover{border-color:var(--blue-400)}

.formats-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:48px}
.format-card{background:var(--white);border:1.5px solid var(--border);border-radius:var(--radius-xl);padding:24px}
.format-title{font-family:'Plus Jakarta Sans',sans-serif;font-weight:800;font-size:16px;color:var(--text-primary);margin-bottom:8px;display:flex;align-items:center;gap:8px}
.format-code{background:var(--blue-950);color:var(--blue-300);border-radius:var(--radius-md);padding:10px 14px;font-size:12px;font-family:monospace;word-break:break-all;margin:10px 0}
.format-desc{font-size:13px;color:var(--text-secondary);line-height:1.6}

.use-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:48px}
.use-card{background:var(--white);border:1.5px solid var(--border);border-radius:var(--radius-xl);padding:24px;transition:all .3s}
.use-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}
.use-icon{font-size:28px;margin-bottom:10px}
.use-title{font-family:'Plus Jakarta Sans',sans-serif;font-weight:800;font-size:15px;color:var(--text-primary);margin-bottom:6px}
.use-desc{font-size:13px;color:var(--text-secondary);line-height:1.6}
.use-example{margin-top:10px;background:var(--surface);border-radius:var(--radius-sm);padding:8px 10px;font-size:11px;color:var(--text-muted);font-style:italic}

.content-section{max-width:780px;margin:0 auto}
.content-section h2{font-family:'Plus Jakarta Sans',sans-serif;font-weight:800;font-size:26px;color:var(--text-primary);margin:40px 0 14px}
.content-section h3{font-family:'Plus Jakarta Sans',sans-serif;font-weight:700;font-size:19px;color:var(--text-primary);margin:28px 0 10px}
.content-section p{font-size:15px;color:var(--text-secondary);line-height:1.75;margin-bottom:14px}
.content-section ul li{font-size:15px;color:var(--text-secondary);line-height:1.75;padding:4px 0 4px 22px;position:relative}
.content-section ul li::before{content:'→';position:absolute;left:0;color:var(--blue-500);font-weight:700}
.content-table{width:100%;border-collapse:collapse;margin:20px 0;border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--border)}
.content-table th{background:var(--blue-950);color:#fff;font-family:'Plus Jakarta Sans',sans-serif;font-size:13px;font-weight:700;padding:12px 16px;text-align:left}
.content-table td{padding:11px 16px;font-size:13px;color:var(--text-secondary);border-bottom:1px solid var(--border)}
.content-table tr:last-child td{border-bottom:none}
.info-box{background:var(--blue-50);border:1px solid var(--blue-100);border-radius:var(--radius-md);padding:16px 20px;margin:20px 0;font-size:14px;color:var(--blue-700);line-height:1.65}

@media(max-width:768px){.form-row,.formats-grid{grid-template-columns:1fr}.use-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.use-grid{grid-template-columns:1fr}.final-card{padding:40px 24px}}