:root{
  --pdf-ink:#172033;--pdf-muted:#6b7488;--pdf-line:#e7e9ef;--pdf-bg:#f7f8fc;--pdf-card:#fff;
  --pdf-red:#ff5a4e;--pdf-orange:#ff8b45;--pdf-green:#52b77b;--pdf-blue:#4d7df3;--pdf-purple:#8a63e9;--pdf-gold:#d9a72e;
  --pdf-shadow:0 18px 45px rgba(38,48,74,.09);--radius:18px
}
*{box-sizing:border-box}.pdf-page{background:linear-gradient(180deg,#fff 0,#f8f8fb 28%,#f6f7fb 100%);color:var(--pdf-ink)}
.pdf-topbar{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.94);backdrop-filter:blur(16px);border-bottom:1px solid #eceef3}
.pdf-topbar .wrap{display:flex;align-items:center;gap:26px;min-height:72px}.pdf-brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--pdf-ink);font-weight:900;font-size:22px;white-space:nowrap}.pdf-logo{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--pdf-red),var(--pdf-orange));display:grid;place-items:center;color:#fff;font-size:13px;box-shadow:0 8px 22px rgba(255,90,78,.28)}.pdf-brand small{display:block;font-size:9px;color:#9a6270;letter-spacing:.15em;margin-top:1px}
.pdf-nav{display:flex;align-items:center;gap:8px;flex:1}.pdf-nav button,.pdf-nav a{border:0;background:transparent;padding:10px 13px;border-radius:10px;color:#3b4354;font-size:14px;font-weight:750;cursor:pointer;text-decoration:none}.pdf-nav button:hover,.pdf-nav a:hover{background:#f4f5f8;color:#111827}.pdf-nav .all-btn{background:#1d2433;color:#fff}.pdf-nav .all-btn:hover{background:#111827;color:#fff}.pdf-back{margin-left:auto;border:1px solid #e0e3ea!important;background:#fff!important}
.pdf-hero{padding:62px 0 32px;background:radial-gradient(circle at 85% 15%,rgba(255,90,78,.10),transparent 30%),radial-gradient(circle at 10% 80%,rgba(111,91,214,.08),transparent 26%)}.pdf-hero .wrap{text-align:center}.pdf-kicker{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:#fff3f1;color:#d94138;font-size:12px;font-weight:900;letter-spacing:.04em}.pdf-hero h1{font-size:44px;line-height:1.12;margin:18px 0 13px;letter-spacing:-.03em}.pdf-hero p{font-size:17px;color:#697184;margin:0 auto;max-width:760px;line-height:1.85}.privacy-pill{display:inline-flex;align-items:center;gap:8px;margin-top:18px;padding:8px 12px;border:1px solid #dce9df;background:#f5fff7;border-radius:999px;color:#2d7750;font-size:12px;font-weight:800}
.pdf-categories{display:flex;justify-content:center;flex-wrap:wrap;gap:9px;margin:28px auto 0}.pdf-category{border:1px solid #dddfe7;background:#fff;padding:9px 15px;border-radius:999px;color:#5a6272;font-size:13px;font-weight:800;cursor:pointer}.pdf-category.active{background:#202634;border-color:#202634;color:#fff}.pdf-category:hover{border-color:#aeb4c0}
.pdf-tools-section{padding:10px 0 48px}.pdf-tool-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.pdf-tool-card{position:relative;min-height:178px;background:#fff;border:1px solid #e1e4eb;border-radius:16px;padding:22px;text-align:left;cursor:pointer;transition:.18s transform,.18s box-shadow,.18s border-color;overflow:hidden}.pdf-tool-card:hover{transform:translateY(-3px);box-shadow:var(--pdf-shadow);border-color:#d0d4df}.pdf-tool-card.active{border-color:var(--accent);box-shadow:0 14px 34px color-mix(in srgb,var(--accent) 18%,transparent)}.pdf-tool-icon{width:46px;height:46px;border-radius:13px;background:color-mix(in srgb,var(--accent) 13%,#fff);color:var(--accent);display:grid;place-items:center;font-size:22px;font-weight:900;margin-bottom:16px}.pdf-tool-card h3{font-size:19px;margin:0 0 8px}.pdf-tool-card p{font-size:13px;line-height:1.7;color:#777f90;margin:0}.pdf-tool-card .tag{position:absolute;right:14px;top:14px;padding:4px 7px;border-radius:999px;background:#f4f5f8;color:#8b91a0;font-size:10px;font-weight:800}.pdf-tool-card[data-cat="organize"]{--accent:var(--pdf-red)}.pdf-tool-card[data-cat="optimize"]{--accent:var(--pdf-green)}.pdf-tool-card[data-cat="convert"]{--accent:var(--pdf-gold)}.pdf-tool-card[data-cat="edit"]{--accent:var(--pdf-purple)}
.pdf-workbench-section{padding:8px 0 70px}.pdf-workbench{background:#fff;border:1px solid #e1e4eb;border-radius:24px;box-shadow:var(--pdf-shadow);overflow:hidden}.workbench-head{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;padding:28px 30px;border-bottom:1px solid #edf0f5;background:linear-gradient(135deg,#fff,#fbfbfd)}.workbench-head h2{font-size:28px;margin:0 0 6px}.workbench-head p{margin:0;color:#737c8e;line-height:1.7;font-size:14px}.workbench-badge{flex:none;padding:9px 12px;border-radius:999px;background:#f2fff5;color:#2f7c52;font-size:12px;font-weight:900}.workbench-body{display:grid;grid-template-columns:minmax(0,1fr) 330px;min-height:540px}.workspace{padding:28px 30px}.settings-panel{padding:26px 24px;background:#fafbfe;border-left:1px solid #edf0f5}.settings-panel h3{font-size:16px;margin:0 0 16px}.upload-zone{position:relative;border:2px dashed #d9dde7;border-radius:18px;background:#fafbfe;min-height:240px;display:grid;place-items:center;text-align:center;padding:30px;transition:.18s border,.18s background}.upload-zone.dragover{border-color:var(--pdf-red);background:#fff7f6}.upload-zone .upload-icon{width:68px;height:68px;border-radius:20px;background:linear-gradient(135deg,#fff0ee,#fff8ef);display:grid;place-items:center;font-size:28px;color:var(--pdf-red);margin:0 auto 15px}.upload-zone h3{font-size:23px;margin:0 0 7px}.upload-zone p{font-size:13px;color:#7b8291;margin:0 0 18px;line-height:1.7}.upload-zone input{position:absolute;inset:0;opacity:0;cursor:pointer}.primary-action,.secondary-action,.danger-action{border:0;border-radius:12px;padding:12px 18px;font-size:14px;font-weight:900;cursor:pointer;transition:.15s transform,.15s opacity}.primary-action{background:linear-gradient(135deg,var(--pdf-red),var(--pdf-orange));color:#fff;box-shadow:0 10px 24px rgba(255,90,78,.22)}.primary-action:hover{transform:translateY(-1px)}.secondary-action{background:#fff;border:1px solid #dfe3ea;color:#3b4352}.danger-action{background:#fff0ef;color:#c9362d}.primary-action:disabled,.secondary-action:disabled{opacity:.45;cursor:not-allowed;transform:none}
.file-summary{display:none;margin-top:18px}.file-summary.show{display:block}.file-list{display:grid;gap:10px}.file-row{display:flex;align-items:center;gap:12px;padding:13px 14px;border:1px solid #e5e8ef;background:#fff;border-radius:13px}.file-row .file-icon{width:38px;height:38px;border-radius:10px;background:#fff1ef;color:var(--pdf-red);display:grid;place-items:center;font-weight:900;font-size:11px}.file-row .file-info{min-width:0;flex:1}.file-row b{display:block;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-row span{display:block;font-size:11px;color:#9096a3;margin-top:2px}.file-row button{border:0;background:#f4f5f8;width:31px;height:31px;border-radius:9px;cursor:pointer;color:#687083}.file-row button:hover{background:#fff0ef;color:#c9362d}
.setting{margin-bottom:17px}.setting label{display:block;font-size:12px;font-weight:900;margin-bottom:7px;color:#495163}.setting small{display:block;font-size:11px;color:#9298a6;margin-top:5px;line-height:1.5}.setting input,.setting select,.setting textarea{width:100%;border:1px solid #dfe3ea;background:#fff;border-radius:10px;padding:11px 12px;font:inherit;font-size:13px;outline:none;color:#323a4a}.setting textarea{min-height:82px;resize:vertical}.setting input:focus,.setting select:focus,.setting textarea:focus{border-color:#9aa9e8;box-shadow:0 0 0 3px rgba(77,125,243,.08)}.setting-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}.setting-switch{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 12px;border:1px solid #e3e6ed;background:#fff;border-radius:10px;font-size:12px;font-weight:800}.setting-switch input{width:auto}
.page-toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0 0 15px}.page-toolbar .count{font-size:12px;color:#7b8290;margin-right:auto}.page-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(132px,1fr));gap:13px}.page-thumb{position:relative;background:#f4f5f8;border:2px solid transparent;border-radius:12px;padding:8px;cursor:pointer;transition:.15s border,.15s transform;user-select:none}.page-thumb:hover{transform:translateY(-2px)}.page-thumb.selected{border-color:var(--pdf-red);background:#fff5f4}.page-thumb.deleted{opacity:.3}.page-thumb.dragging{opacity:.35}.page-thumb canvas{display:block;width:100%;height:auto;background:#fff;box-shadow:0 4px 12px rgba(31,41,55,.12);border-radius:4px}.page-num{display:flex;justify-content:space-between;align-items:center;margin-top:7px;font-size:11px;color:#6f7787}.page-num b{color:#343c4b}.page-moves{display:flex;gap:5px;margin-top:6px}.page-moves button{flex:1;min-height:28px;border:1px solid #d7dbe5;border-radius:7px;background:#fff;color:#4a5363;cursor:pointer}.page-moves button:hover:not(:disabled){border-color:var(--pdf-red);color:var(--pdf-red)}.page-moves button:disabled{opacity:.35;cursor:not-allowed}.page-rotate{position:absolute;right:13px;top:13px;width:28px;height:28px;border:0;border-radius:8px;background:rgba(22,29,43,.80);color:#fff;cursor:pointer;display:grid;place-items:center}.page-check{position:absolute;left:13px;top:13px;width:22px;height:22px;border-radius:7px;background:#fff;border:1px solid #d7dbe5;display:grid;place-items:center;font-size:11px;font-weight:900}.page-thumb.selected .page-check{background:var(--pdf-red);border-color:var(--pdf-red);color:#fff}
.progress-wrap{display:none;margin-top:18px;border:1px solid #e3e6ed;background:#fafbfe;padding:16px;border-radius:13px}.progress-wrap.show{display:block}.progress-top{display:flex;justify-content:space-between;font-size:12px;font-weight:800;color:#555e6f;margin-bottom:8px}.progress-bar{height:8px;background:#e9ebf1;border-radius:99px;overflow:hidden}.progress-bar i{display:block;width:0;height:100%;background:linear-gradient(90deg,var(--pdf-red),var(--pdf-orange));transition:.15s width}.result-box{display:none;margin-top:18px;padding:18px;border:1px solid #dce9df;background:#f7fff9;border-radius:14px}.result-box.show{display:block}.result-box h3{margin:0 0 7px;color:#276a48}.result-box p{font-size:12px;color:#617367;line-height:1.7;margin:0 0 12px}.result-stats{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:12px}.result-stat{background:#fff;border:1px solid #dfe9e2;padding:9px 11px;border-radius:10px;font-size:11px}.result-stat b{display:block;font-size:16px;color:#264f39;margin-top:2px}.result-actions{display:flex;gap:8px;flex-wrap:wrap}
.info-note{padding:12px 13px;background:#fff9ed;border:1px solid #f1e2bc;border-radius:10px;font-size:11px;line-height:1.65;color:#7b642f;margin-bottom:15px}.privacy-note{padding:12px 13px;background:#f3fbf5;border:1px solid #dcecdf;border-radius:10px;font-size:11px;line-height:1.65;color:#477158;margin-bottom:15px}.hidden{display:none!important}
.pdf-future{padding:0 0 70px}.future-box{background:linear-gradient(135deg,#202634,#2c3140);color:#fff;border-radius:22px;padding:28px 30px;display:flex;gap:24px;align-items:center}.future-box>div:first-child{flex:1}.future-box h2{margin:0 0 7px;font-size:25px}.future-box p{margin:0;color:#c8cdd7;line-height:1.75;font-size:13px}.future-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.future-tags span{padding:7px 10px;border-radius:999px;background:rgba(255,255,255,.08);font-size:11px;color:#e6e9ef}.future-badge{width:96px;height:96px;border-radius:24px;background:linear-gradient(135deg,#ff5a4e,#8a63e9);display:grid;place-items:center;font-size:32px;font-weight:900;box-shadow:0 18px 40px rgba(0,0,0,.18)}
.pdf-faq{padding:0 0 80px}.pdf-faq .content{background:#fff;border:1px solid #e5e7ed;border-radius:18px;padding:28px}.pdf-faq h2{margin:0 0 16px}.pdf-faq details{border-top:1px solid #edf0f3;padding:14px 0}.pdf-faq details:first-of-type{border-top:0}.pdf-faq summary{cursor:pointer;font-weight:850;font-size:14px}.pdf-faq p{color:#70798a;line-height:1.75;font-size:13px;margin:9px 0 0}
@media(max-width:1100px){.pdf-tool-grid{grid-template-columns:repeat(3,1fr)}.workbench-body{grid-template-columns:1fr}.settings-panel{border-left:0;border-top:1px solid #edf0f5}.pdf-nav{overflow:auto}.pdf-nav button,.pdf-nav a{white-space:nowrap}}
@media(max-width:760px){.pdf-topbar .wrap{min-height:62px;gap:10px}.pdf-brand{font-size:18px}.pdf-logo{width:34px;height:34px}.pdf-nav{display:none}.pdf-back{margin-left:auto}.pdf-hero{padding:38px 0 24px}.pdf-hero h1{font-size:32px}.pdf-hero p{font-size:14px}.pdf-tool-grid{grid-template-columns:repeat(2,1fr);gap:10px}.pdf-tool-card{min-height:160px;padding:17px}.pdf-tool-card h3{font-size:16px}.pdf-tool-card p{font-size:12px}.workbench-head{padding:22px 18px;flex-direction:column}.workbench-head h2{font-size:23px}.workspace{padding:20px 16px}.settings-panel{padding:20px 16px}.page-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.future-box{padding:23px 20px}.future-badge{display:none}}
@media(max-width:480px){.pdf-tool-grid{grid-template-columns:1fr}.pdf-categories{justify-content:flex-start;overflow:auto;flex-wrap:nowrap;padding-bottom:5px}.pdf-category{white-space:nowrap}.setting-row{grid-template-columns:1fr}.page-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.editor-area{margin-top:18px}.editor-toolbar{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:8px;margin-bottom:14px}.editor-toolbar span{min-width:88px;text-align:center;font-size:13px;font-weight:900;color:#4b5565}.editor-stage{position:relative;margin:auto;max-width:100%;width:max-content;border:1px solid #dfe3ea;background:#e9ebf1;box-shadow:0 12px 30px rgba(26,34,52,.12);overflow:auto;touch-action:none}.editor-stage canvas{display:block;max-width:100%;height:auto}.editor-stage #editorOverlayCanvas{position:absolute;inset:0;cursor:default}.editor-stage.draw-mode #editorOverlayCanvas{cursor:crosshair}.editor-tip{text-align:center;color:#777f90;font-size:12px;line-height:1.65;margin:11px 0 0}.signature-pad{width:100%;height:130px;border:1px dashed #cbd1dc;border-radius:10px;background:#fff;touch-action:none}.editor-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:14px}.editor-actions button.active{border-color:var(--pdf-purple);color:var(--pdf-purple);background:#f7f3ff}