*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --sun:#FF6B35;--rose:#FF4D94;--sky:#4ECDC4;--mint:#06D6A0;
  --grape:#A855F7;--blue:#3B82F6;--lemon:#FFE66D;
  --bg:#FFF8F2;--white:#FFFFFF;
  --ink:#1C1C2E;--ink2:#52526E;--ink3:#A0A0BC;
  --border:#EDE8F5;--shadow:0 2px 12px rgba(28,28,46,.07);
  --r:18px;--accent:var(--sun);--accent2:var(--rose);
}
html{scroll-behavior:smooth}
body{font-family:'Plus Jakarta Sans',sans-serif;background:var(--bg);color:var(--ink);line-height:1.7;font-size:15px}
a{color:var(--sun);text-decoration:none}
.blob{position:fixed;border-radius:50%;filter:blur(72px);opacity:.18;pointer-events:none;z-index:0;animation:flt 9s ease-in-out infinite}
.b1{width:480px;height:480px;background:var(--sun);top:-100px;right:-80px}
.b2{width:360px;height:360px;background:var(--sky);bottom:-80px;left:-60px;animation-delay:3.5s}
@keyframes flt{0%,100%{transform:translateY(0)}50%{transform:translateY(-26px)}}
.wrap{position:relative;z-index:1;max-width:900px;margin:0 auto;padding:0 20px}

/* Nav */
.navbar{position:sticky;top:0;z-index:100;background:rgba(255,248,242,.88);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1.5px solid var(--border);box-shadow:0 2px 20px rgba(28,28,46,.06)}
.nav-inner{max-width:1100px;margin:0 auto;padding:0 20px;height:62px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.logo-mark{width:38px;height:38px;background:linear-gradient(135deg,var(--sun),var(--rose));border-radius:11px;display:flex;align-items:center;justify-content:center;font-size:18px;box-shadow:0 3px 12px rgba(255,107,53,.32)}
.logo-text{font-family:'Nunito',sans-serif;font-size:20px;font-weight:900;letter-spacing:-.4px;color:var(--ink)}
.logo-text em{font-style:normal;background:linear-gradient(90deg,var(--sun),var(--rose));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-links a{padding:7px 11px;border-radius:10px;font-size:12.5px;font-weight:600;color:var(--ink2);transition:all .18s;white-space:nowrap}
.nav-links a:hover,.nav-links a.active{background:rgba(255,107,53,.08);color:var(--sun)}
.nav-right{display:flex;align-items:center;gap:8px}
.nav-badge{background:linear-gradient(135deg,var(--mint),var(--sky));color:#fff;font-size:11px;font-weight:700;padding:5px 12px;border-radius:20px;white-space:nowrap}
.nav-menu-btn{display:none;background:none;border:none;cursor:pointer;padding:6px;border-radius:9px;color:var(--ink2);font-size:22px}
@media(max-width:900px){.nav-links{display:none}.nav-menu-btn{display:flex}}
@media(max-width:400px){.nav-badge{display:none}}

/* Mega menu */
.nav-item{position:relative}
.nav-item:hover .mega-menu,.nav-item:focus-within .mega-menu{display:block}
.mega-trigger{cursor:pointer;display:flex;align-items:center;gap:4px}
.mega-menu{display:none;position:absolute;top:calc(100% + 8px);left:50%;transform:translateX(-50%);background:var(--white);border:1.5px solid var(--border);border-radius:16px;box-shadow:0 16px 48px rgba(28,28,46,.14);padding:16px;min-width:520px;z-index:200}
.mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.mega-col h4{font-size:11px;font-weight:800;color:var(--ink3);text-transform:uppercase;letter-spacing:.5px;margin-bottom:8px}
.mega-col a{display:block;font-size:12.5px;font-weight:600;color:var(--ink2);padding:5px 8px;border-radius:8px}
.mega-col a:hover{background:rgba(255,107,53,.07);color:var(--sun)}
.mega-all{margin-top:12px;padding-top:12px;border-top:1.5px solid var(--border);text-align:center}
.mega-all a{font-weight:800;font-size:13px}

/* Mobile menu */
.mobile-menu{display:none;position:fixed;top:62px;left:0;right:0;z-index:98;background:rgba(255,248,242,.97);backdrop-filter:blur(20px);border-bottom:1.5px solid var(--border);padding:10px 16px 16px;flex-direction:column;gap:3px;max-height:70vh;overflow-y:auto}
.mobile-menu.open{display:flex}
.mobile-menu a{padding:11px 14px;border-radius:10px;font-size:14px;font-weight:700;color:var(--ink2)}
.mobile-menu a:hover{color:var(--sun);background:rgba(255,107,53,.06)}
.mobile-menu .mob-section{font-size:11px;font-weight:800;color:var(--ink3);text-transform:uppercase;padding:10px 14px 4px}

/* Hero */
.hero{text-align:center;padding:40px 0 28px}
.breadcrumb{font-size:12.5px;color:var(--ink3);margin-bottom:10px}
.breadcrumb a{color:var(--ink3)}
.eyebrow{display:inline-flex;align-items:center;gap:6px;background:var(--white);border:2px solid var(--lemon);border-radius:30px;padding:5px 15px;font-size:12.5px;font-weight:700;color:var(--ink2);margin-bottom:14px;box-shadow:0 3px 10px rgba(255,230,109,.22)}
.hero h1{font-family:'Nunito',sans-serif;font-size:clamp(26px,5vw,48px);font-weight:900;line-height:1.1;letter-spacing:-1.5px;margin-bottom:12px}
.hero h1 .g{background:linear-gradient(90deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero p{font-size:16px;color:var(--ink2);max-width:560px;margin:0 auto 12px;line-height:1.75}
.updated-date{font-size:12px;color:var(--ink3);font-weight:600}

/* Sub nav */
.subnav{display:flex;gap:6px;justify-content:center;flex-wrap:wrap;margin:20px 0 8px}
.subnav a{font-size:12px;font-weight:700;color:var(--ink3);padding:6px 12px;border-radius:20px;border:1.5px solid var(--border);background:var(--white)}
.subnav a:hover{border-color:var(--sun);color:var(--sun)}

/* Converter */
.drop-zone{background:var(--white);border:2.5px dashed #D8D0F0;border-radius:24px;padding:42px 24px;text-align:center;cursor:pointer;transition:all .25s;box-shadow:var(--shadow)}
.drop-zone:hover,.drop-zone.dragover{border-color:var(--accent);box-shadow:0 10px 40px rgba(255,107,53,.13)}
.drop-zone input[type=file]{display:none}
.btn-browse{display:inline-flex;align-items:center;gap:7px;padding:12px 28px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;border-radius:40px;font-size:14px;font-weight:700;cursor:pointer;border:none;font-family:inherit;box-shadow:0 5px 16px rgba(255,107,53,.28)}
.drop-zone h2{font-family:'Nunito',sans-serif;font-size:18px;font-weight:800;margin-bottom:7px}
.drop-zone p{font-size:14px;color:var(--ink3);margin-bottom:16px}
.fmt-note{margin-top:10px;font-size:11.5px;color:var(--ink3);font-weight:600}
.server-notice{background:linear-gradient(135deg,#FFF8F0,#F8F0FF);border:1.5px solid rgba(168,85,247,.2);border-radius:16px;padding:20px;margin:16px 0;text-align:left}
.server-notice h3{font-size:15px;font-weight:800;margin-bottom:8px;color:var(--ink)}
.server-notice p{font-size:13.5px;color:var(--ink2);line-height:1.75;margin-bottom:10px}
.server-notice .alt-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.server-notice .alt-links a{font-size:12px;font-weight:700;padding:6px 12px;background:var(--white);border:1.5px solid var(--border);border-radius:20px}
.opts{display:flex;gap:11px;margin:16px 0;flex-wrap:wrap}
.opt-card{flex:1;min-width:160px;background:var(--white);border:1.5px solid var(--border);border-radius:14px;padding:12px 16px;box-shadow:var(--shadow)}
.opt-lbl{font-size:11px;font-weight:700;color:var(--ink3);text-transform:uppercase;letter-spacing:.5px;margin-bottom:5px}
.opt-card select{width:100%;background:transparent;border:none;color:var(--ink);font-size:14px;font-weight:700;font-family:inherit;cursor:pointer;outline:none}
.q-row{display:flex;align-items:center;gap:9px}
.q-row input{flex:1;accent-color:var(--accent)}
.q-val{font-size:19px;font-weight:900;color:var(--accent);min-width:38px}
.file-list{display:flex;flex-direction:column;gap:8px;margin:12px 0}
.file-item{display:flex;align-items:center;gap:12px;background:var(--white);border:1.5px solid var(--border);border-radius:14px;padding:10px 14px;box-shadow:var(--shadow)}
.file-item.done{border-color:rgba(6,214,160,.3);background:#F0FDF9}
.file-item.error{border-color:rgba(255,77,148,.3);background:#FFF0F5}
.thumb{width:44px;height:44px;border-radius:10px;background:#FFF0E8;display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0;overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:cover}
.finfo{flex:1;min-width:0}
.fname{font-size:13px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.fmeta{font-size:11px;color:var(--ink3);font-weight:600}
.pill{font-size:11px;font-weight:800;padding:3px 9px;border-radius:18px}
.pr{background:#EEF2FF;color:#6366F1}.pc{background:#FFF7ED;color:var(--sun)}.pd{background:#ECFDF5;color:var(--mint)}.pe{background:#FFF0F5;color:var(--rose)}
.btn-dl{padding:6px 12px;background:linear-gradient(135deg,var(--mint),var(--sky));color:#fff;border:none;border-radius:16px;font-size:11.5px;font-weight:700;cursor:pointer;font-family:inherit}
.btn-rm{background:none;border:none;color:var(--ink3);cursor:pointer;font-size:19px;padding:3px}
.prog-wrap{height:7px;background:#EDE8F5;border-radius:8px;margin:4px 0 16px;overflow:hidden;display:none}
.prog-bar{height:100%;background:linear-gradient(90deg,var(--accent),var(--accent2));border-radius:8px;transition:width .4s}
.act-row{display:none;gap:10px;margin:16px 0}
.btn-convert{flex:1;padding:15px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;border:none;border-radius:14px;font-family:'Nunito',sans-serif;font-size:15px;font-weight:900;cursor:pointer}
.btn-convert:disabled{opacity:.45;cursor:not-allowed}
.btn-clear{padding:15px 20px;background:var(--white);border:1.5px solid var(--border);color:var(--ink3);border-radius:14px;font-weight:700;cursor:pointer;font-family:inherit}
.btn-zip{width:100%;padding:13px;background:linear-gradient(135deg,var(--sky),var(--blue));color:#fff;border:none;border-radius:14px;font-family:'Nunito',sans-serif;font-size:14px;font-weight:900;cursor:pointer;display:none;margin-bottom:10px}
.priv-bar{text-align:center;padding:16px;background:linear-gradient(135deg,rgba(6,214,160,.07),rgba(78,205,196,.07));border-radius:14px;border:1.5px solid rgba(6,214,160,.18);margin:12px 0;font-size:13px;color:var(--ink2);font-weight:600}

/* Content sections */
.section{margin:48px 0;scroll-margin-top:80px}
.sec-tag{display:inline-block;background:linear-gradient(135deg,var(--lemon),#FFCF40);color:var(--ink);font-size:11px;font-weight:800;padding:4px 12px;border-radius:20px;text-transform:uppercase;letter-spacing:.6px;margin-bottom:10px}
.section h2{font-family:'Nunito',sans-serif;font-size:clamp(21px,3.5vw,30px);font-weight:900;letter-spacing:-.7px;margin-bottom:10px;line-height:1.2}
.section h2 .c{color:var(--accent)}
.body-text{font-size:15px;color:var(--ink2);line-height:1.85;margin-bottom:14px;max-width:700px}
.kw-tags{display:flex;flex-wrap:wrap;gap:6px;margin:14px 0}
.kw-tag{font-size:11px;font-weight:700;color:var(--ink3);background:var(--white);border:1.5px solid var(--border);padding:4px 10px;border-radius:20px}
.feat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px;margin-top:18px}
.feat-card{background:var(--white);border:1.5px solid var(--border);border-radius:16px;padding:18px;box-shadow:var(--shadow)}
.feat-icon{font-size:24px;margin-bottom:8px}
.feat-card h3{font-size:14px;font-weight:800;margin-bottom:5px}
.feat-card p{font-size:13px;color:var(--ink2);line-height:1.65}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(175px,1fr));gap:14px;margin-top:18px}
.step{background:linear-gradient(135deg,#FFF8F0,#F8F0FF);border-radius:16px;padding:18px;border:1.5px solid rgba(255,107,53,.09)}
.step-num{width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,var(--accent),var(--accent2));display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:900;color:#fff;margin-bottom:10px}
.step h3{font-size:14px;font-weight:800;margin-bottom:5px}
.step p{font-size:13px;color:var(--ink2);line-height:1.6}
.tbl-wrap{overflow-x:auto;margin-top:18px;border-radius:16px;border:1.5px solid var(--border);box-shadow:var(--shadow)}
.ctbl{width:100%;border-collapse:collapse;font-size:13.5px;background:var(--white)}
.ctbl th{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;padding:11px 15px;text-align:left;font-weight:800;font-size:12.5px}
.ctbl td{padding:11px 15px;border-bottom:1.5px solid #F5F0FF;color:var(--ink2);font-weight:600}
.ctbl tr:last-child td{border-bottom:none}
.ctbl tr:nth-child(even) td{background:#FAFAF8}
.faq-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.faq-item{background:var(--white);border:1.5px solid var(--border);border-radius:14px;overflow:hidden;box-shadow:var(--shadow)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;padding:16px 18px;background:none;border:none;font-family:inherit;font-size:14.5px;font-weight:700;color:var(--ink);cursor:pointer;text-align:left;gap:10px}
.faq-arrow{font-size:18px;color:var(--accent);transition:transform .28s;flex-shrink:0}
.faq-a{display:none;padding:0 18px 16px;font-size:13.5px;color:var(--ink2);line-height:1.8}
.faq-item.open .faq-a{display:block}
.faq-item.open .faq-arrow{transform:rotate(180deg)}
.faq-item.open .faq-q{color:var(--accent)}
.other-tools{display:grid;grid-template-columns:repeat(auto-fit,minmax(195px,1fr));gap:12px;margin-top:18px}
.tool-card{background:var(--white);border:1.5px solid var(--border);border-radius:14px;padding:16px;text-decoration:none;display:block;transition:all .2s;box-shadow:var(--shadow)}
.tool-card:hover{transform:translateY(-3px);border-color:rgba(255,107,53,.25)}
.tool-card h3{font-size:14px;font-weight:800;color:var(--ink);margin-bottom:4px}
.tool-card p{font-size:12.5px;color:var(--ink2);line-height:1.55}

/* Hub page */
.hub-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px;margin-top:20px}
.hub-link{display:block;background:var(--white);border:1.5px solid var(--border);border-radius:12px;padding:14px 16px;font-size:13.5px;font-weight:700;color:var(--ink);transition:all .18s;box-shadow:var(--shadow)}
.hub-link:hover{border-color:var(--sun);color:var(--sun);transform:translateY(-2px)}
.hub-link small{display:block;font-size:11.5px;font-weight:600;color:var(--ink3);margin-top:3px}
.hub-section{margin:36px 0}
.hub-section h3{font-family:'Nunito',sans-serif;font-size:18px;font-weight:900;margin-bottom:12px}

/* Footer */
.footer-converters{margin:32px 0;padding:24px;background:var(--white);border-radius:16px;border:1.5px solid var(--border)}
.footer-converters summary{font-weight:800;cursor:pointer;font-size:14px;color:var(--ink)}
.footer-converters .hub-grid{margin-top:14px}
footer{margin-top:40px;padding:26px 0;border-top:1.5px solid var(--border);text-align:center;font-size:12.5px;color:var(--ink3);font-weight:600;line-height:2.1}
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(90px);background:var(--ink);color:#fff;padding:11px 24px;border-radius:40px;font-size:13.5px;font-weight:700;transition:transform .38s;z-index:999;box-shadow:0 8px 28px rgba(0,0,0,.18)}
.toast.show{transform:translateX(-50%) translateY(0)}
@keyframes spn{to{transform:rotate(360deg)}}
.sp{display:inline-block;width:13px;height:13px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spn .7s linear infinite;margin-right:6px;vertical-align:middle}
@media(max-width:540px){.opts{flex-direction:column}.feat-grid,.steps,.mega-menu{grid-template-columns:1fr}.mega-menu{min-width:90vw;left:0;transform:none}}