:root{--content-width:1120px;--page-gutter:32px;--section-gap:28px;--container-width:min(var(--content-width),calc(100% - var(--page-gutter)));--surface:rgba(255,255,255,0.9);--text:#111318;--muted:#616b7e;--line:#dbe4f2;--brand:#2f80ed;--brand-dark:#1f67c6;--success:#1c8a5a;--danger:#c84848;--shadow:0 18px 45px rgba(47,78,138,0.12);--shadow-soft:0 10px 30px rgba(47,78,138,0.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;color:var(--text);background:radial-gradient(circle at left center,rgba(255,210,196,.45),transparent 24%),radial-gradient(circle at right top,rgba(196,225,255,.68),transparent 28%),linear-gradient(180deg,#fbfdff,#eef5ff);font-family:Manrope,Fira GO,sans-serif;overflow-x:hidden}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.ambient{position:fixed;width:34rem;height:34rem;border-radius:50%;filter:blur(70px);pointer-events:none;opacity:.55;z-index:0}.ambient-left{left:-10rem;top:18rem;background:rgba(255,206,192,.68)}.ambient-right{right:-10rem;top:6rem;background:rgba(189,223,255,.82)}.topbar{z-index:40;width:var(--container-width);margin:0 auto;padding:28px 0 10px;display:flex;justify-content:space-between;align-items:center;gap:24px}.topbar,main{position:relative}main{z-index:1}.brand{display:flex;align-items:center;gap:16px}.brand-mark-link{display:inline-flex;flex:0 0 auto}.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:62px;height:62px;flex:0 0 62px;filter:drop-shadow(0 16px 24px rgba(226,71,54,.18))}.brand-mark-svg{width:100%;height:100%;display:block}.brand-copy{display:flex;flex-direction:column;min-width:0}.brand-copy strong{font-size:1.9rem;line-height:.96;letter-spacing:-.04em}.brand-copy span{max-width:15rem;margin-top:6px;color:var(--muted);font-size:.98rem;line-height:1.35}.topbar-actions{position:relative;z-index:45}.nav-group,.topbar-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end;align-items:center}.nav-link{padding:12px 18px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.78);box-shadow:var(--shadow-soft);font-weight:600;transition:transform .18s ease,background .18s ease,border-color .18s ease,box-shadow .18s ease}.nav-link:hover{transform:translateY(-1px);border-color:#c4d7f6;box-shadow:0 14px 32px rgba(47,78,138,.11)}.nav-link.active{background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;border-color:transparent}.menu-trigger{display:none;width:54px;height:54px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.82);box-shadow:var(--shadow-soft);align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer}.menu-trigger span{display:block;width:22px;height:2px;border-radius:999px;background:#18263d;transition:transform .18s ease,opacity .18s ease}.menu-trigger.active span:first-child{transform:translateY(7px) rotate(45deg)}.menu-trigger.active span:nth-child(2){opacity:0}.menu-trigger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}.lang-switch{position:relative;min-width:96px}.lang-switch.open{z-index:80}.lang-option,.lang-trigger{border:1px solid var(--line);background:rgba(255,255,255,.82);box-shadow:var(--shadow-soft)}.lang-trigger{width:auto;min-width:96px;display:inline-flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 14px;border-radius:16px;cursor:pointer;color:var(--text);transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}.lang-trigger:hover{transform:translateY(-1px);border-color:#c4d7f6;box-shadow:0 14px 32px rgba(47,78,138,.11)}.lang-option,.lang-trigger-main{display:inline-flex;align-items:center;gap:10px}.lang-option-copy strong,.lang-trigger-main strong{font-size:.95rem;line-height:1}.lang-flag{display:inline-flex;align-items:center;justify-content:center;width:22px;font-size:1rem}.lang-flag-compact{width:18px;font-size:.95rem}.lang-caret{color:var(--muted);font-size:.8rem;transition:transform .18s ease}.lang-switch.open .lang-caret{transform:rotate(180deg)}.lang-menu{position:absolute;top:calc(100% + 10px);left:0;min-width:180px;padding:8px;border:1px solid rgba(214,226,244,.95);border-radius:18px;background:rgba(255,255,255,.96);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);opacity:0;pointer-events:none;transform:translateY(-6px);transition:opacity .18s ease,transform .18s ease;z-index:90}.lang-switch.open .lang-menu{opacity:1;pointer-events:auto;transform:translateY(0)}.lang-option{width:100%;padding:10px 12px;border-radius:14px;transition:background .18s ease,transform .18s ease}.lang-option+.lang-option{margin-top:8px}.lang-option:hover{transform:translateY(-1px)}.lang-option.active{background:linear-gradient(135deg,rgba(47,128,237,.12),rgba(31,103,198,.08));border-color:#b8d3f6}.lang-option.active .lang-option-copy strong{color:var(--brand-dark)}.lang-option-copy{display:flex;flex-direction:column;align-items:flex-start}.lang-option-copy span{margin-top:3px;color:var(--muted);font-size:.76rem;line-height:1.1}.hero-shell{min-height:calc(100vh - 86px);display:flex;align-items:center;justify-content:center;padding:32px 16px 48px}.hero-inner{width:var(--container-width);text-align:center}.eyebrow,.section-kicker{margin:0;color:var(--brand);font-size:.82rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase}h1,h2,h3{margin:0;line-height:1.04}h1{max-width:980px;margin:18px auto 0;font-size:clamp(3.25rem,7vw,6.1rem);font-weight:800;letter-spacing:-.06em}.hero-lead{max-width:860px;margin:24px auto 0;color:var(--muted);font-size:1.22rem;line-height:1.75}.hero-badges{display:flex;justify-content:center;flex-wrap:wrap;gap:12px;margin-top:26px}.hero-badges span,.mode-pills span{display:inline-flex;align-items:center;justify-content:center;padding:10px 16px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.72);color:#334157;font-size:.95rem;font-weight:600}.benefit-card,.faq-item,.info-panel,.metric-card,.upload-card{background:var(--surface);border:1px solid rgba(214,226,244,.95);box-shadow:var(--shadow)}.upload-card{width:100%;margin:38px auto 0;padding:26px;border-radius:28px;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.upload-head h2{font-size:1.5rem;font-weight:800}.upload-head p{margin:10px auto 0;max-width:620px;color:var(--muted);line-height:1.65}.dropzone{display:flex;flex-direction:column;align-items:center;gap:12px;margin-top:22px;padding:54px 28px 42px;border:2px dashed #bfd4f1;border-radius:24px;background:linear-gradient(180deg,rgba(255,255,255,.96),rgba(247,251,255,.96));cursor:pointer;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}.dropzone.dragover,.dropzone:hover{transform:translateY(-2px);border-color:#8cb7ee;box-shadow:0 18px 38px rgba(47,128,237,.12)}.dropzone input{display:none}.dropzone-icon{display:inline-flex;align-items:center;justify-content:center;width:74px;height:74px;border-radius:20px;background:#f4f9ff;color:var(--text)}.dropzone-icon svg{width:34px;height:34px}.dropzone-title{display:block;font-size:clamp(1.6rem,3vw,2.1rem);font-weight:800}.dropzone-subtitle{display:block;max-width:760px;color:var(--muted);font-size:1rem;line-height:1.6}.mode-pills{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;margin-top:20px}.file-list{display:grid;grid-gap:12px;gap:12px;margin-top:20px}.empty-state{margin:0;padding:18px 16px 4px;text-align:center;color:var(--muted)}.file-item{display:grid;grid-template-columns:1fr auto;grid-gap:16px;gap:16px;align-items:center;padding:16px 18px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.92)}.file-meta span,.file-meta strong{display:block}.file-meta strong{word-break:break-word;font-size:.98rem}.file-meta span{margin-top:6px;color:var(--muted);font-size:.9rem}.file-actions{display:flex;flex-wrap:wrap;gap:8px}.ghost-button,.primary-button{border:0;border-radius:14px;font:inherit;cursor:pointer}.ghost-button{padding:10px 13px;background:#eef4fd;color:#23436d;font-weight:700}.primary-button{width:min(620px,100%);margin:22px auto 0;display:inline-flex;align-items:center;justify-content:center;padding:18px 24px;background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;font-size:1.08rem;font-weight:800;box-shadow:0 18px 36px rgba(47,128,237,.24)}.primary-button:disabled{opacity:.78;cursor:progress}.status{min-height:24px;margin:14px auto 0;max-width:700px;color:var(--muted);line-height:1.5}.status.success{color:var(--success)}.status.error{color:var(--danger)}.benefit-grid,.section-grid,.seo-columns{width:var(--container-width);margin-left:auto;margin-right:auto}.metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:18px;gap:18px;width:100%;margin:var(--section-gap) 0 0}.metric-card{padding:24px 22px;border-radius:22px;text-align:left}.metric-card strong{display:block;font-size:1.8rem;font-weight:800}.metric-card span{display:block;margin-top:8px;color:var(--muted);line-height:1.55}.section-block{padding:var(--section-gap) 0 var(--section-gap)}.section-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:22px;gap:22px}.benefit-card,.info-panel{padding:28px;border-radius:26px}.info-panel h2,.section-heading h2{margin-top:14px;font-size:clamp(2rem,3.8vw,3.2rem);font-weight:800;letter-spacing:-.04em}.benefit-card p,.info-panel p,.seo-columns p{margin:16px 0 0;color:var(--muted);line-height:1.8;font-size:1rem}.benefit-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:18px;gap:18px}.benefit-card h3{font-size:1.25rem;font-weight:800}.faq-section,.seo-copy{width:var(--container-width);margin:0 auto}.section-heading{text-align:center;margin-bottom:22px}.faq-list{display:grid;grid-gap:16px;gap:16px}.faq-item{border-radius:22px;overflow:hidden}.faq-item summary{list-style:none;position:relative;padding:25px 68px 25px 28px;font-size:clamp(1.1rem,2vw,1.45rem);font-weight:700;cursor:pointer}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";position:absolute;right:28px;top:50%;transform:translateY(-50%);font-size:2rem;line-height:1;color:#1f2f47}.faq-item[open] summary:after{content:"-"}.faq-item p{margin:0;padding:0 28px 26px;color:var(--muted);line-height:1.8}.seo-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:22px;gap:22px}.footer-links-section{width:var(--container-width);margin:0 auto;padding-top:10px;padding-bottom:56px}.footer-links-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:18px;gap:18px}.footer-links-card{background:var(--surface);border:1px solid rgba(214,226,244,.95);box-shadow:var(--shadow);border-radius:24px;padding:24px 24px 22px}.footer-links-card h2{font-size:1.2rem;font-weight:800}.footer-links-list{display:grid;grid-gap:12px;gap:12px;margin-top:16px}.footer-links-list a{color:var(--brand-dark);line-height:1.55;font-weight:600}.footer-links-list a:hover{color:var(--brand)}.knowledge-article,.knowledge-section{width:var(--container-width);margin:0 auto}.knowledge-lead{max-width:780px;margin:14px auto 0;color:var(--muted);line-height:1.75}.knowledge-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:18px;gap:18px}.knowledge-article-block,.knowledge-card{background:var(--surface);border:1px solid rgba(214,226,244,.95);box-shadow:var(--shadow);border-radius:24px}.knowledge-card{padding:24px;display:flex;flex-direction:column;min-height:100%}.knowledge-article-block h2,.knowledge-card h3{font-size:1.4rem;font-weight:800}.knowledge-article-block p,.knowledge-card p{margin:14px 0 0;color:var(--muted);line-height:1.8}.knowledge-meta{display:flex;justify-content:space-between;gap:12px;margin-bottom:14px;color:var(--brand);font-size:.84rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.knowledge-link{display:inline-flex;margin-top:auto;padding-top:24px;color:var(--brand-dark);font-weight:700}.knowledge-footer{margin-top:20px;display:flex;justify-content:center}.knowledge-page .hero-shell{min-height:auto;padding-bottom:42px}.knowledge-hero .hero-inner{max-width:1040px}.knowledge-hero .hero-inner h1{font-size:clamp(2.75rem,6.4vw,5rem);line-height:.98;letter-spacing:-.05em}.knowledge-hero .hero-lead{max-width:980px;font-size:clamp(1.06rem,1.9vw,1.35rem);line-height:1.7}.knowledge-topbar{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:start;padding-bottom:0;grid-gap:18px 24px;gap:18px 24px}.knowledge-actions{display:inline-flex;flex-wrap:wrap;justify-content:flex-end;align-items:center;row-gap:12px}.knowledge-shortcuts{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}.knowledge-breadcrumbs{grid-column:1/-1;width:100%;margin:2px 0 0;display:flex;flex-wrap:wrap;align-items:center;gap:12px;padding:4px 0 0;color:#6c7689;font-size:.98rem;line-height:1.4}.knowledge-breadcrumbs a{color:#202733;font-weight:500;transition:color .18s ease}.knowledge-breadcrumbs a:hover{color:var(--brand-dark)}.knowledge-breadcrumbs span:last-child{color:#6c7689;font-weight:500}.knowledge-breadcrumb-separator{color:#9aa4b5;font-size:1.35rem;line-height:1;transform:translateY(-1px)}.knowledge-article{display:grid;grid-gap:22px;gap:22px;padding-bottom:52px}.knowledge-group+.knowledge-group,.knowledge-related{margin-top:26px}.knowledge-popular{margin-top:8px}.knowledge-group-heading{margin-bottom:18px}.knowledge-article-block{padding:34px}.knowledge-article-block h2{font-size:clamp(1.5rem,2vw,1.9rem);line-height:1.12}.knowledge-article-block p{font-size:1.08rem;line-height:1.9}@media (max-width:900px){:root{--page-gutter:20px}.topbar{align-items:flex-start;gap:16px}.topbar-actions{width:100%;justify-content:space-between}.brand{align-items:center}.brand-copy strong{font-size:1.55rem}.brand-copy span{max-width:12.5rem;font-size:.9rem}.knowledge-actions{width:100%;justify-content:space-between;align-items:flex-start}.knowledge-shortcuts{width:100%;justify-content:flex-start}.knowledge-shortcuts .nav-link{flex:1 1;text-align:center}.nav-group{position:absolute;top:calc(100% + 12px);left:0;right:0;display:grid;grid-gap:10px;gap:10px;padding:14px;border:1px solid rgba(214,226,244,.95);border-radius:24px;background:rgba(255,255,255,.97);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);opacity:0;pointer-events:none;transform:translateY(-8px);transition:opacity .18s ease,transform .18s ease;z-index:25}.nav-group.open{opacity:1;pointer-events:auto;transform:translateY(0)}.nav-link{text-align:center}.menu-trigger{display:inline-flex}.lang-switch{min-width:88px}.knowledge-breadcrumbs{margin-top:10px;font-size:.88rem;gap:8px}.knowledge-hero .hero-inner h1{font-size:clamp(2.2rem,10vw,3.4rem)}.knowledge-article-block{padding:24px}.knowledge-article-block p{font-size:1rem;line-height:1.82}.benefit-grid,.file-item,.footer-links-grid,.knowledge-grid,.metrics,.section-grid,.seo-columns{grid-template-columns:1fr}}@media (min-width:901px){.nav-group{display:flex!important}}