@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Playfair+Display:wght@700;800&display=swap');
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#fafafa;--white:#ffffff;--surface:#f4f4f6;
  --border:#e8e8ed;--border2:#d8d8e0;
  --blue:#1877f2;--blue2:#145dbf;--sky:#42a5f5;--accent:#00c6ff;
  --text:#0f0f14;--muted:#6b6b80;--light:#9898aa;
  --green:#16a34a;--green2:#15803d;--red:#dc2626;
  --r:14px;--rs:10px;--shadow:0 2px 16px rgba(0,0,0,.08);--shadow2:0 8px 40px rgba(0,0,0,.12);
}
html{scroll-behavior:smooth}
body{font-family:'Inter',sans-serif;background:var(--bg);color:var(--text);min-height:100vh}
a{color:inherit}

header{background:var(--white);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}
.header-inner{max-width:1100px;margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none}
.logo-ic{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--blue),var(--sky),var(--accent));display:flex;align-items:center;justify-content:center;font-size:18px}
.logo-tx{font-family:'Playfair Display',serif;font-weight:800;font-size:20px;color:var(--text)}
.logo-tx span{background:linear-gradient(90deg,var(--blue),var(--sky));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.nav{display:flex;align-items:center;gap:28px}
.nav a{font-size:14px;font-weight:500;color:var(--muted);text-decoration:none;transition:color .2s}
.nav a:hover,.nav a.active{color:var(--text)}
.nav-cta{background:linear-gradient(135deg,var(--blue),var(--sky));color:#fff !important;padding:8px 18px;border-radius:8px;font-size:13px !important}
.nav-cta:hover{opacity:.9}
.nav-toggle-input{position:absolute;opacity:0;pointer-events:none}
.nav-toggle{display:none;width:40px;height:40px;align-items:center;justify-content:center;cursor:pointer;position:relative;flex-shrink:0}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{content:'';position:absolute;width:22px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s,opacity .2s}
.nav-toggle span::before{transform:translateY(-7px)}
.nav-toggle span::after{transform:translateY(7px)}
.nav-toggle-input:checked+.nav-toggle span{background:transparent}
.nav-toggle-input:checked+.nav-toggle span::before{transform:translateY(0) rotate(45deg)}
.nav-toggle-input:checked+.nav-toggle span::after{transform:translateY(0) rotate(-45deg)}

.page{max-width:1100px;margin:0 auto;padding:0 24px}
.section{padding:56px 0}
.section-tag{display:inline-block;background:rgba(24,119,242,.08);border:1px solid rgba(24,119,242,.2);color:var(--blue);font-size:11px;font-weight:700;padding:5px 14px;border-radius:20px;letter-spacing:.8px;text-transform:uppercase;margin-bottom:16px}
.section-title{font-family:'Playfair Display',serif;font-weight:800;font-size:clamp(28px,3.5vw,40px);color:var(--text);margin-bottom:12px;line-height:1.2}
.section-sub{font-size:16px;color:var(--muted);line-height:1.7;max-width:600px}
.center{text-align:center;margin-left:auto;margin-right:auto}

.hero{padding:64px 0 40px;text-align:center;background:linear-gradient(180deg,#eef5ff 0%,var(--bg) 100%)}
.hero h1{font-family:'Playfair Display',serif;font-weight:800;font-size:clamp(30px,5vw,52px);line-height:1.15;max-width:820px;margin:0 auto 18px}
.hero h1 span{background:linear-gradient(90deg,var(--blue),var(--sky));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero p{font-size:17px;color:var(--muted);max-width:600px;margin:0 auto 36px;line-height:1.7}

.downloader{max-width:640px;margin:0 auto;background:var(--white);border:1px solid var(--border);border-radius:20px;padding:28px;box-shadow:var(--shadow2)}
.input-row{display:flex;gap:10px}
.input-row input{flex:1;padding:15px 18px;border:1.5px solid var(--border2);border-radius:12px;font-size:15px;font-family:inherit;outline:none;transition:border-color .2s}
.input-row input:focus{border-color:var(--blue)}
.btn{background:linear-gradient(135deg,var(--blue),var(--sky));color:#fff;border:none;padding:15px 26px;border-radius:12px;font-weight:700;font-size:15px;cursor:pointer;white-space:nowrap;transition:opacity .2s}
.btn:hover{opacity:.9}
.btn:disabled{opacity:.5;cursor:not-allowed}
.audio-toggle{display:flex;align-items:center;gap:8px;margin-top:16px;font-size:13px;color:var(--muted);justify-content:center}
.audio-toggle input{width:16px;height:16px;accent-color:var(--blue)}
.helper-text{font-size:12.5px;color:var(--light);margin-top:14px;text-align:center}
.error-box{margin-top:16px;padding:12px 16px;background:#fef2f2;border:1px solid #fecaca;color:var(--red);border-radius:10px;font-size:14px;display:none}
.result-box{margin-top:20px;display:none}
.result-thumb{width:100%;border-radius:12px;margin-bottom:16px;background:var(--surface);aspect-ratio:16/9;object-fit:cover;display:block}
.formats{display:flex;flex-direction:column;gap:10px}
.format-row{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border:1px solid var(--border);border-radius:10px;background:var(--surface)}
.format-row span{font-size:14px;font-weight:600}
.format-row a{background:var(--blue);color:#fff;padding:8px 16px;border-radius:8px;font-size:13px;font-weight:700;text-decoration:none}
.spinner{display:inline-block;width:16px;height:16px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;vertical-align:-3px;margin-right:6px}
@keyframes spin{to{transform:rotate(360deg)}}

.trust-row{display:flex;justify-content:center;gap:32px;margin-top:36px;flex-wrap:wrap}
.trust-item{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);font-weight:600}
.trust-item svg{width:18px;height:18px;color:var(--blue)}

.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:44px}
.step{background:var(--white);border:1px solid var(--border);border-radius:16px;padding:28px}
.step-num{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--blue),var(--sky));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;margin-bottom:16px}
.step h3{font-size:17px;margin-bottom:8px;font-weight:700}
.step p{font-size:14px;color:var(--muted);line-height:1.65}

.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;margin-top:44px}
.feature-card{background:var(--white);border:1px solid var(--border);border-radius:16px;padding:26px}
.feature-ic{width:40px;height:40px;border-radius:10px;background:rgba(24,119,242,.1);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:14px}
.feature-card h3{font-size:16px;margin-bottom:8px;font-weight:700}
.feature-card p{font-size:13.5px;color:var(--muted);line-height:1.6}

.faq-list{max-width:760px;margin:44px auto 0}
.faq-item{border:1px solid var(--border);border-radius:12px;margin-bottom:12px;overflow:hidden;background:var(--white)}
.faq-q{padding:18px 22px;font-weight:600;font-size:15px;cursor:pointer;display:flex;justify-content:space-between;align-items:center}
.faq-q::after{content:'+';font-size:20px;color:var(--blue);font-weight:400}
.faq-item.open .faq-q::after{content:'\2212'}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease;padding:0 22px}
.faq-item.open .faq-a{max-height:200px;padding-bottom:18px}
.faq-a p{font-size:14px;color:var(--muted);line-height:1.7}

.blog-preview-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px;margin-top:44px}
.blog-preview-card{background:var(--white);border:1px solid var(--border);border-radius:16px;overflow:hidden;text-decoration:none;color:var(--text);display:block;transition:all .2s}
.blog-preview-card:hover{border-color:var(--border2);box-shadow:var(--shadow2);transform:translateY(-3px)}
.blog-preview-card .thumb{width:100%;aspect-ratio:1200/630;object-fit:cover;display:block;background:var(--surface)}
.blog-preview-card .body{padding:18px 22px 22px}
.blog-preview-card .tag{font-size:11px;color:var(--blue);font-weight:700;text-transform:uppercase;letter-spacing:.4px;margin-bottom:8px}
.blog-preview-card h3{font-family:'Playfair Display',serif;font-size:17px;margin-bottom:8px;line-height:1.35}
.blog-preview-card p{font-size:13.5px;color:var(--muted);line-height:1.6}
.view-all-blog{display:inline-block;margin-top:28px;font-weight:700;color:var(--blue);text-decoration:none;font-size:14px}

.cta-band{background:linear-gradient(135deg,var(--blue),var(--sky));border-radius:20px;padding:48px;text-align:center;color:#fff;margin-top:20px}
.cta-band h2{font-family:'Playfair Display',serif;font-size:clamp(24px,3vw,32px);margin-bottom:12px}
.cta-band p{opacity:.9;margin-bottom:22px;font-size:15px}
.cta-band a{display:inline-block;background:#fff;color:var(--blue2);font-weight:700;padding:14px 30px;border-radius:12px;text-decoration:none;font-size:15px}

.disclaimer{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:20px 24px;font-size:13px;color:var(--muted);line-height:1.7;margin-top:24px}

.static-page{max-width:820px;margin:0 auto;padding:56px 24px 80px}
.static-page h1{font-family:'Playfair Display',serif;font-weight:800;font-size:clamp(28px,4vw,40px);margin-bottom:8px}
.static-page .updated{font-size:13px;color:var(--muted);margin-bottom:32px}
.static-page h2{font-family:'Playfair Display',serif;font-weight:700;font-size:22px;margin:32px 0 12px}
.static-page p{font-size:15px;color:#2b2b35;line-height:1.8;margin-bottom:16px}
.static-page ul{margin:0 0 16px 22px}
.static-page li{font-size:15px;color:#2b2b35;line-height:1.8;margin-bottom:8px}
.static-page a{color:var(--blue);text-decoration:underline}

.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-top:36px}
.contact-card{background:var(--white);border:1px solid var(--border);border-radius:16px;padding:26px}
.contact-card h3{font-size:16px;margin-bottom:10px;font-weight:700}
.contact-card p{font-size:14px;color:var(--muted);line-height:1.7}
.contact-card a{color:var(--blue);font-weight:600;text-decoration:none}
@media(max-width:700px){.contact-grid{grid-template-columns:1fr}}

footer{background:#0f0f14;color:#fff;padding:48px 0 0;margin-top:40px}
.footer-inner{max-width:1100px;margin:0 auto;padding:0 24px}
.footer-top{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;padding-bottom:36px}
.footer-brand{max-width:280px}
.footer-brand p{font-size:13px;color:rgba(255,255,255,.55);line-height:1.7;margin-top:10px}
.footer-links h4{font-size:13px;text-transform:uppercase;letter-spacing:.5px;color:rgba(255,255,255,.45);margin-bottom:14px}
.footer-links a{display:block;font-size:14px;color:rgba(255,255,255,.75);text-decoration:none;margin-bottom:10px}
.footer-links a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;max-width:1100px;margin:0 auto}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.35)}
.footer-bottom a{color:rgba(255,255,255,.5);text-decoration:none}

@media(max-width:700px){
  .nav-toggle{display:flex}
  .nav{
    display:none;position:absolute;top:64px;left:0;right:0;z-index:99;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--white);border-bottom:1px solid var(--border);box-shadow:var(--shadow2);
    padding:6px 24px 14px;
  }
  .nav-toggle-input:checked~.nav{display:flex}
  .nav a{padding:13px 0;border-bottom:1px solid var(--border);font-size:15px}
  .nav a:last-child{border-bottom:none}
  .nav-cta{margin-top:10px;text-align:center}
  .steps{grid-template-columns:1fr}
  .input-row{flex-direction:column}
  .footer-top{flex-direction:column}
  .downloader{padding:20px}
  .header-inner{padding:0 16px}
  .page{padding:0 16px}
}
@media(max-width:420px){
  .hero{padding:44px 0 28px}
  .section{padding:40px 0}
  .trust-row{gap:18px}
  .cta-band{padding:32px 22px}
}