:root{
  --bg:#f4f7fb;--surface:#fff;--surface-2:#f8fafc;--text:#14213d;--muted:#667085;
  --line:#dfe5ef;--primary:#155eef;--primary-dark:#0f47bd;--soft:#eaf1ff;
  --success:#067647;--success-soft:#ecfdf3;--danger:#b42318;--danger-soft:#fef3f2;
  --warning:#b54708;--radius:18px;--shadow:0 16px 40px rgba(34,55,95,.09)
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);background:var(--bg);line-height:1.65}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}button{cursor:pointer}img{max-width:100%}.container{width:min(1160px,calc(100% - 36px));margin:auto}.narrow{width:min(850px,calc(100% - 36px));margin:auto}.skip-link{position:absolute;left:-9999px;top:10px;background:#000;color:#fff;padding:10px;z-index:99}.skip-link:focus{left:10px}
.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}.nav-wrap{min-height:72px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:10px;font-weight:800;white-space:nowrap}.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:var(--primary);color:#fff;font-size:13px}.site-header nav{display:flex;align-items:center;gap:21px;flex:1}.site-header nav a,.nav-actions>a{color:#344054;font-weight:650;font-size:14px}.site-header nav a:hover,.nav-actions>a:hover{color:var(--primary)}.nav-actions{display:flex;align-items:center;gap:12px}.mobile-nav-toggle{display:none;border:0;background:transparent;font-size:24px;margin-left:auto}.lang-link{padding:6px 9px;border-radius:8px;background:var(--surface-2)}
.button{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:1px solid transparent;border-radius:11px;padding:11px 17px;font-weight:750;line-height:1.2;transition:.18s}.button:hover{transform:translateY(-1px)}.button.primary{background:var(--primary);color:#fff}.button.primary:hover{background:var(--primary-dark)}.button.secondary{background:#fff;border-color:#bfc9da;color:#253858}.button.success{background:var(--success);color:#fff}.button.ghost{background:transparent;border-color:var(--line);color:#475467}.button.danger{background:var(--danger);color:#fff}.button.tiny{padding:7px 10px;font-size:13px;border-radius:8px}.button.large{padding:14px 21px;font-size:16px}.button.full,.full{width:100%}
.hero{padding:76px 0 62px;background:radial-gradient(circle at 80% 10%,#e9f1ff 0,transparent 34%),linear-gradient(180deg,#fff,#f4f7fb)}.hero-grid{display:grid;grid-template-columns:1.25fr .85fr;gap:54px;align-items:center}.hero h1,.page-hero h1{font-size:clamp(40px,6vw,68px);line-height:1.03;letter-spacing:-.045em;margin:13px 0 20px}.hero-copy>p{font-size:19px;max-width:720px;color:var(--muted)}.eyebrow{display:inline-block;font-size:12px;font-weight:850;letter-spacing:.14em;text-transform:uppercase;color:var(--primary)}.hero-actions{display:flex;gap:12px;margin:27px 0}.trust-row{display:flex;flex-wrap:wrap;gap:12px 24px;color:#475467;font-size:14px}.search-card{background:var(--surface);padding:26px;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow)}.search-card label{font-weight:800;display:block;margin:16px 0 8px}.search-card input{width:100%;border:1px solid #cbd5e1;border-radius:12px;padding:14px 15px;font-size:16px;outline:none}.search-card input:focus{border-color:var(--primary);box-shadow:0 0 0 4px var(--soft)}.search-results{min-height:24px;color:var(--primary);font-size:14px;margin-top:6px}.quick-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:18px}.quick-facts div{background:var(--surface-2);border-radius:12px;padding:12px;text-align:center}.quick-facts strong{display:block;font-size:20px}.quick-facts span{display:block;font-size:11px;color:var(--muted)}.quota-chip{display:inline-flex;border-radius:999px;padding:6px 10px;background:var(--soft);color:var(--primary-dark);font-size:12px;font-weight:700}.quota-chip.paid{background:var(--success-soft);color:var(--success)}
.section{padding:64px 0}.section-head{display:flex;justify-content:space-between;gap:40px;align-items:end;margin-bottom:25px}.section-head h2{font-size:32px;line-height:1.16;letter-spacing:-.025em;margin:6px 0 0}.section-head>p{max-width:520px;color:var(--muted);margin:0}.category-meta{color:var(--muted);font-size:14px;margin:-12px 0 22px}.tool-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.tool-grid.compact{grid-template-columns:repeat(3,minmax(0,1fr))}.tool-card{display:flex;align-items:flex-start;gap:14px;min-height:145px;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20px;transition:.18s}.tool-card:hover{border-color:#aebfe0;box-shadow:0 12px 32px rgba(22,54,105,.08);transform:translateY(-2px)}.tool-icon{flex:0 0 42px;height:42px;display:grid;place-items:center;background:var(--soft);color:var(--primary);font-weight:900;border-radius:12px}.tool-card-copy{min-width:0;flex:1}.tool-card-title{display:flex;align-items:center;flex-wrap:wrap;gap:8px}.tool-card h3{font-size:17px;line-height:1.3;margin:0}.tool-card p{font-size:13px;color:var(--muted);margin:8px 0 0}.tool-card .arrow{color:var(--primary);font-size:21px}.batch-badge{display:inline-flex;border-radius:999px;background:var(--success-soft);color:var(--success);padding:2px 7px;font-size:10px;font-weight:800}.category-section:nth-of-type(even){background:rgba(255,255,255,.54)}.privacy-band{background:#0f2447;color:#fff}.privacy-grid{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:50px}.privacy-grid p{color:#c9d5ea}.metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.metric-grid div{padding:21px;background:rgba(255,255,255,.08);border-radius:14px}.metric-grid strong,.metric-grid span{display:block}.metric-grid strong{font-size:24px}.metric-grid span{font-size:12px;color:#c9d5ea}
.page-hero{padding:58px 0 38px;background:#fff;border-bottom:1px solid var(--line)}.page-hero h1{font-size:clamp(34px,5vw,54px)}.page-hero p{font-size:18px;color:var(--muted);max-width:760px}.back-link{display:inline-block;color:var(--primary);font-size:14px;font-weight:700;margin-bottom:12px}.converter-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:24px;align-items:start}.converter-card,.side-card,.account-card,.checkout-card,.order-summary,.pricing-card,.auth-card{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}.converter-card{padding:25px}.quota-banner{display:flex;align-items:center;justify-content:space-between;gap:14px;background:var(--soft);border-radius:13px;padding:13px 15px;margin-bottom:18px}.quota-banner>div{display:flex;flex-direction:column}.quota-banner span{font-size:12px;color:var(--muted)}.quota-banner a{font-weight:800;color:var(--primary);white-space:nowrap}.quota-banner.paid{background:var(--success-soft)}.upload-zone{border:2px dashed #b7c4d9;border-radius:17px;padding:38px 20px;text-align:center;background:#fbfdff;transition:.18s;outline:none}.upload-zone.dragging,.upload-zone:focus{border-color:var(--primary);background:var(--soft)}.upload-symbol{font-size:32px;color:var(--primary)}.upload-zone h2{font-size:22px;margin:6px 0}.upload-zone p{margin:0 0 15px;color:var(--muted)}.limit-row{display:flex;justify-content:center;flex-wrap:wrap;gap:7px 14px;margin-top:17px;color:var(--muted);font-size:11px}.selection-panel{margin:18px 0}.selection-head{display:flex;justify-content:space-between;gap:15px;align-items:start;margin-bottom:10px}.selection-head small{display:block;color:var(--muted)}.selection-actions{display:flex;gap:12px}.text-button{border:0;background:transparent;padding:0;color:var(--primary);font-weight:700}.text-button.danger{color:var(--danger)}.selected-files{display:grid;gap:8px}.file-row{display:grid;grid-template-columns:34px minmax(0,1fr) auto auto;align-items:center;gap:10px;border:1px solid var(--line);border-radius:11px;padding:10px 12px;background:var(--surface-2)}.file-row.dragging{opacity:.55}.file-drag{border:0;background:transparent;color:#98a2b3;cursor:grab;font-size:17px}.file-info{min-width:0}.file-info strong{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:14px}.file-info small{color:var(--muted)}.file-controls{display:flex;gap:4px}.icon-button{width:29px;height:29px;display:grid;place-items:center;border:1px solid var(--line);border-radius:8px;background:#fff;color:#475467}.icon-button:hover{border-color:var(--primary);color:var(--primary)}.icon-button.remove:hover{border-color:var(--danger);color:var(--danger)}.file-error{grid-column:2/-1;color:var(--danger);font-size:12px}.soft-note{padding:10px 12px;border-radius:10px;background:var(--soft);color:#344054;font-size:13px}.option-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:20px 0}.option-grid label,.stack-form label,.form-grid label{font-weight:700;font-size:13px;color:#344054}.option-grid input:not([type=checkbox]):not([type=range]),.option-grid select,.stack-form input,.stack-form textarea,.stack-form select,.form-grid input:not([type=checkbox]),.form-grid textarea,.form-grid select,.admin-search input{display:block;width:100%;margin-top:6px;border:1px solid #cdd5df;border-radius:10px;padding:11px 12px;background:#fff;color:var(--text);outline:none}.option-grid input:focus,.option-grid 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.button{margin-right:8px}.quota-action{margin:10px 0}.quota-action a{font-weight:800;color:var(--primary)}.converter-sidebar{display:grid;gap:16px;position:sticky;top:94px}.side-card{padding:21px}.side-card h2{font-size:18px;margin:0 0 8px}.side-card p{font-size:14px;color:var(--muted);margin:0}.prose{background:#fff;border:1px solid var(--line);border-radius:18px;padding:35px}.prose h2{font-size:28px;margin:6px 0 18px}.steps{counter-reset:step;list-style:none;padding:0}.steps li{counter-increment:step;position:relative;padding:13px 15px 13px 50px;border:1px solid var(--line);border-radius:12px;margin:9px 0}.steps li:before{content:counter(step);position:absolute;left:14px;top:11px;width:26px;height:26px;display:grid;place-items:center;border-radius:50%;background:var(--primary);color:#fff;font-size:12px;font-weight:800}.faq-list details{border-bottom:1px solid var(--line);padding:14px 0}.faq-list summary{font-weight:750;cursor:pointer}.faq-list p,.reviewed{color:var(--muted)}.reviewed{font-size:12px;margin-top:28px}
.pricing-hero{text-align:center}.pricing-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;align-items:stretch}.pricing-card{position:relative;padding:27px;display:flex;flex-direction:column}.pricing-card.featured{border:2px solid var(--primary);transform:translateY(-8px)}.popular-ribbon{position:absolute;right:18px;top:15px;background:var(--primary);color:#fff;border-radius:999px;padding:4px 9px;font-size:11px;font-weight:800}.pricing-card h2{font-size:25px;margin:4px 0 8px}.pricing-card>p{color:var(--muted);min-height:52px}.plan-price{display:flex;align-items:baseline;gap:7px;margin:18px 0}.plan-price strong{font-size:28px}.plan-price span{color:var(--muted)}.pricing-card ul{list-style:none;padding:0;margin:0 0 24px;flex:1}.pricing-card li{padding:7px 0;border-bottom:1px solid var(--line);font-size:14px}.checkout-grid{display:grid;grid-template-columns:330px 1fr;gap:22px;align-items:start}.order-summary,.checkout-card{padding:25px}.gateway-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.gateway-option{border:1px solid var(--line);border-radius:12px;padding:13px;display:flex;flex-direction:column;gap:7px}.gateway-option:has(input:checked){border-color:var(--primary);background:var(--soft)}.gateway-option img{max-height:170px;object-fit:contain}.notice-box{background:var(--soft);border-radius:12px;padding:14px}
.auth-section{padding:70px 0}.auth-card{width:min(480px,calc(100% - 36px));margin:auto;padding:30px}.auth-card h1{font-size:32px;margin:0 0 8px}.auth-card>p{color:var(--muted)}.stack-form{display:grid;gap:14px}.auth-switch{text-align:center;margin-top:18px;color:var(--muted)}.auth-switch a{color:var(--primary);font-weight:800}
.account-grid{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:22px}.account-main,.account-side{display:grid;gap:18px;align-content:start}.account-card{padding:23px}.quota-card{display:flex;align-items:center;gap:20px}.quota-card>div:first-child{flex:1}.quota-card h2{margin:5px 0}.quota-numbers{display:flex;gap:22px}.quota-numbers div{text-align:center}.quota-numbers strong,.quota-numbers span{display:block}.quota-numbers strong{font-size:28px}.quota-numbers span{font-size:12px;color:var(--muted)}
.responsive-table{overflow:auto}.responsive-table table{width:100%;border-collapse:collapse;min-width:680px}.responsive-table th,.responsive-table td{text-align:left;padding:12px 10px;border-bottom:1px solid var(--line);vertical-align:middle}.responsive-table th{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}.responsive-table td{font-size:14px}.responsive-table td strong,.responsive-table td small{display:block}.status-pill{display:inline-flex;padding:4px 9px;border-radius:999px;font-size:11px;font-weight:800;background:#eef2f6;color:#475467}.status-pill.paid,.status-pill.completed{background:var(--success-soft);color:var(--success)}.status-pill.pending,.status-pill.queued,.status-pill.processing{background:#fff6e8;color:var(--warning)}.status-pill.rejected,.status-pill.failed,.status-pill.cancelled{background:var(--danger-soft);color:var(--danger)}
.alert,.success{padding:13px 15px;border-radius:11px;margin:0 0 16px}.alert{background:var(--danger-soft);border:1px solid #f7c5c1;color:#912018}.success{background:var(--success-soft);border:1px solid #a6f0c7;color:#05603a}.muted{color:var(--muted)}
.site-footer{background:#0d1c35;color:#d9e2f0;padding:44px 0 20px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px}.footer-grid p{color:#9fb0c8}.footer-grid>div:not(:first-child){display:grid;gap:7px;align-content:start}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:30px;padding-top:18px;color:#9fb0c8;font-size:12px}
.admin-body{background:#eef2f7}.admin-header{position:sticky;top:0;z-index:40;min-height:64px;display:flex;align-items:center;padding:0 24px;background:#10213d;color:#fff}.admin-brand{font-weight:850;margin-right:35px}.admin-header nav{display:flex;align-items:center;gap:17px;flex:1}.admin-header nav a,.admin-header .link-button{font-size:13px;color:#d6e0ee;border:0;background:none;padding:0}.admin-header form{margin-left:auto}.admin-menu-toggle{display:none;margin-left:auto}.admin-main{width:min(1360px,calc(100% - 34px));margin:28px auto 70px}.admin-page-head{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:20px}.admin-page-head h1{font-size:30px;margin:3px 0}.admin-page-head p{margin:0;color:var(--muted)}.admin-stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:18px}.admin-stat,.admin-card,.admin-plan-card{background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:0 8px 24px rgba(34,55,95,.05)}.admin-stat{padding:20px}.admin-stat span,.admin-stat strong{display:block}.admin-stat span{font-size:13px;color:var(--muted)}.admin-stat strong{font-size:27px;margin-top:6px}.admin-grid{display:grid;gap:16px;margin-bottom:18px}.admin-grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.admin-card{padding:21px;margin-bottom:18px}.admin-card h2{font-size:20px;margin:0 0 15px}.admin-card-head{display:flex;justify-content:space-between;gap:20px;align-items:start;margin-bottom:14px}.admin-card-head h2{margin-bottom:4px}.admin-card-head p,.admin-help{margin:0;color:var(--muted);font-size:13px}.admin-count{background:var(--soft);color:var(--primary);border-radius:999px;padding:5px 9px;font-size:12px;font-weight:800}.dependency-list{display:grid;gap:9px}.dependency-list>div{display:grid;grid-template-columns:1fr auto;gap:4px 12px;padding:10px 12px;background:var(--surface-2);border-radius:10px}.dependency-list small{grid-column:1/-1;color:var(--muted)}.ok{color:var(--success)}.bad{color:var(--danger)}.quick-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.quick-links a{padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:var(--surface-2);font-weight:700;font-size:13px}.actions{display:flex;flex-wrap:wrap;gap:7px}.actions form{display:inline}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.form-grid small,.stack-form small{display:block;color:var(--muted);font-weight:400;margin-top:4px}.admin-form textarea{resize:vertical}.sticky-save{position:sticky;bottom:15px;display:flex;justify-content:flex-end;padding:12px 0;z-index:8}.sticky-save .button{box-shadow:0 12px 30px rgba(21,94,239,.25)}.admin-search{display:flex;gap:9px;margin-bottom:15px}.admin-search input{max-width:420px;margin:0}.admin-plan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.admin-plan-card{padding:22px}.admin-plan-card.featured{border:2px solid var(--primary)}.admin-plan-top{display:flex;justify-content:space-between}.admin-plan-card h2{margin:10px 0 5px}.admin-plan-card p{color:var(--muted);min-height:50px}.admin-plan-price{display:block;font-size:26px;margin:15px 0}.admin-plan-card dl{margin:0 0 17px}.admin-plan-card dl div,.detail-list div{display:flex;justify-content:space-between;gap:20px;padding:9px 0;border-bottom:1px solid var(--line)}.admin-plan-card dt,.detail-list dt{color:var(--muted)}.admin-plan-card dd,.detail-list dd{margin:0;text-align:right}.filter-tabs{display:flex;gap:8px;margin-bottom:15px;overflow:auto}.filter-tabs a{padding:8px 13px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;font-weight:700}.filter-tabs a.active{background:var(--primary);color:#fff;border-color:var(--primary)}.proof-preview{display:flex;align-items:center;justify-content:center;min-height:160px;border:2px dashed var(--line);border-radius:12px;color:var(--primary);font-weight:800}.response-code{display:block;max-width:340px;white-space:normal;word-break:break-word;font-size:11px}.empty-cell{text-align:center!important;color:var(--muted);padding:30px!important}.admin-login-wrap{min-height:100vh;display:grid;place-items:center;padding:30px}.admin-login-card{width:min(440px,100%);background:#fff;border-radius:18px;padding:30px;box-shadow:var(--shadow)}
@media(max-width:1000px){.site-header nav{position:absolute;left:0;right:0;top:72px;display:none;flex-direction:column;align-items:stretch;background:#fff;border-bottom:1px solid var(--line);padding:16px 22px}.site-header nav.open{display:flex}.mobile-nav-toggle{display:block}.nav-actions{margin-left:auto}.hero-grid,.privacy-grid,.converter-layout,.account-grid,.checkout-grid{grid-template-columns:1fr}.converter-sidebar{position:static;grid-template-columns:repeat(2,1fr)}.tool-grid,.tool-grid.compact,.pricing-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.admin-stat-grid{grid-template-columns:repeat(2,1fr)}.admin-plan-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:720px){.container,.narrow{width:min(100% - 24px,1160px)}.nav-wrap{min-height:64px}.site-header nav{top:64px}.brand span:last-child{display:none}.nav-actions>a:not(.lang-link):not(.button){display:none}.hero{padding:52px 0 42px}.hero-grid{gap:28px}.hero h1,.page-hero h1{font-size:38px}.quick-facts,.metric-grid{grid-template-columns:1fr 1fr}.section{padding:43px 0}.section-head{display:block}.section-head>p{margin-top:10px}.tool-grid,.tool-grid.compact,.pricing-grid,.admin-plan-grid{grid-template-columns:1fr}.pricing-card.featured{transform:none}.option-grid,.form-grid,.admin-grid.two,.gateway-grid{grid-template-columns:1fr}.option-grid .full,.form-grid .full{grid-column:auto}.converter-card,.prose{padding:18px}.converter-sidebar{grid-template-columns:1fr}.selection-head,.quota-card,.quota-banner{align-items:stretch;flex-direction:column}.selection-actions{justify-content:space-between}.file-row{grid-template-columns:28px minmax(0,1fr) auto}.file-controls{grid-column:2/-1;justify-content:flex-end}.account-side{order:-1}.footer-grid{grid-template-columns:1fr}.admin-header{padding:0 14px}.admin-header nav{display:none;position:absolute;top:64px;left:0;right:0;background:#10213d;padding:15px;flex-direction:column;align-items:flex-start}.admin-header nav.open{display:flex}.admin-header nav form{margin:0}.admin-menu-toggle{display:block;background:transparent;color:#fff;border:1px solid #6c7d96;border-radius:8px;padding:6px 9px}.admin-main{width:calc(100% - 20px);margin-top:18px}.admin-page-head{align-items:flex-start;flex-direction:column}.admin-stat-grid{grid-template-columns:1fr 1fr}.quick-links{grid-template-columns:1fr}.admin-search{flex-wrap:wrap}.admin-search input{max-width:none;flex:1 1 100%}.responsive-table table{min-width:760px}}