:root{--brand-start:#a917f3;--brand-mid:#ef0a72;--brand-end:#ff4e00;--ink:#17223a;--muted:#657187;--soft:#f7f9fc;--line:#e5e9f0;--dash:#d4dbe6;--purple:#ad43f6;--pink:#e95aa9;--orange:#ff954f;--shadow:0 14px 34px rgba(42,23,89,.14)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#fff;font-family:Microsoft YaHei,PingFang SC,Noto Sans SC,Arial,sans-serif}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{cursor:pointer}img{max-width:100%;display:block}.brand-header,.workspace-header{height:80px;background:linear-gradient(100deg,var(--brand-start) 0,var(--brand-mid) 57%,var(--brand-end) 100%);color:#fff}.brand-header__inner,.workspace-header__inner{height:100%;margin:0 auto;display:flex;align-items:center;justify-content:space-between}.brand-header__inner{width:min(1400px,calc(100vw - 48px))}.brand-logo,.workspace-logo{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:30px;font-weight:800;letter-spacing:0;white-space:nowrap}.brand-logo__flame{font-size:25px;line-height:1}.brand-tabs,.workspace-tabs{display:flex;align-items:center;gap:10px}.brand-tab,.workspace-tab{position:relative;min-width:91px;height:42px;padding:0 24px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;color:hsla(0,0%,100%,.65);background:hsla(0,0%,100%,.15);font-size:18px;line-height:1;white-space:nowrap}.brand-tab--active,.workspace-tab--active{color:#9b28e8;background:#fff;box-shadow:0 8px 24px rgba(99,31,126,.12)}.brand-tab b,.workspace-tab b{position:absolute;top:-13px;right:-10px;padding:3px 9px;border-radius:999px;color:#fff;background:var(--orange);font-size:12px;line-height:16px;font-weight:700}.landing-page{min-height:100vh;background:#fff}.landing-hero{min-height:682px;padding:84px 24px 80px;background:linear-gradient(110deg,#fbf5ff,#fff6fb 51%,#fff5eb)}.landing-hero__inner{width:min(1326px,100%);margin:0 auto;text-align:center}.landing-hero h1{margin:0;color:transparent;background:linear-gradient(95deg,#bb27dd 18%,#f00972 70%);background-clip:text;-webkit-background-clip:text;font-size:54px;line-height:1.2;font-weight:500;letter-spacing:0}.landing-hero p{margin:12px 0 0;color:#314055;font-size:24px;line-height:1.55}.hero-card-row{width:min(1326px,100%);margin:52px auto 0;display:grid;grid-template-columns:repeat(3,414px);justify-content:center;grid-gap:27px;gap:27px}.hero-card-image{width:414px;height:288px;object-fit:cover;border-radius:14px;box-shadow:0 12px 22px rgba(39,27,60,.18)}.advantages-section{padding:70px 24px 76px;background:#fff}.advantages-section h2{margin:0 0 54px;color:#0f1f35;text-align:center;font-size:34px;line-height:1.2;font-weight:400}.advantage-grid{width:min(1326px,100%);margin:0 auto;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-gap:36px;gap:36px}.advantage-card{min-height:218px;padding:26px 27px;border:1px solid #dfe4ec;border-radius:12px;background:#fff}.advantage-icon{width:56px;height:56px;margin-bottom:22px;border-radius:50%;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,#b343f4,#ec3ba4);font-size:30px;font-weight:700}.advantage-card h3{margin:0 0 12px;color:#14223a;font-size:22px;line-height:1.3;font-weight:400}.advantage-card p{margin:0;color:#34445d;font-size:16px;line-height:1.65}.workspace-page{min-height:100vh;background:#fff}.workspace-header{position:-webkit-sticky;position:sticky;top:0;z-index:20}.workspace-header__inner{width:1392px;max-width:calc(100vw - 48px)}.workspace-logo{margin-left:4px;font-size:29px}.workspace-logo strong{font-weight:800}.workspace-layout{display:grid;grid-template-columns:344px 1fr;min-height:calc(100vh - 80px)}.tool-sidebar{position:relative;display:flex;flex-direction:column;border-right:1px solid var(--line);background:#f8fafc}.tool-sidebar__heading{padding:27px 24px 28px;border-bottom:1px solid var(--line)}.tool-sidebar__heading h2{margin:0 0 8px;color:#1d2a44;font-size:26px;line-height:1.25;font-weight:500}.tool-sidebar__heading p{margin:0;color:#536077;font-size:16px;line-height:1.45}.tool-list{padding:18px 16px;display:grid;grid-gap:8px;gap:8px}.tool-card{position:relative;min-height:114px;padding:20px 18px;border-radius:11px;display:grid;grid-template-columns:44px 1fr;grid-gap:12px;gap:12px;align-items:start;border:1px solid transparent;background:#fff}.tool-card--active{border:2px solid var(--purple);box-shadow:0 7px 18px rgba(173,67,246,.12)}.tool-card--disabled{color:#a7afbd;background:#f4f6f9;opacity:.76}.tool-card__icon{width:44px;height:44px;border-radius:10px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,#af43f6,#a646ef);font-size:26px;line-height:1}.tool-card--disabled .tool-card__icon{background:#bfc6d1}.tool-card h3{margin:0 0 8px;color:#1c2942;font-size:20px;line-height:1.35;font-weight:500}.tool-card p{margin:0;color:#4b5a72;font-size:14px;line-height:1.55}.tool-card--disabled h3,.tool-card--disabled p{color:#a8b0bd}.soon-badge{position:absolute;top:-10px;right:-8px;padding:3px 9px;border-radius:999px;color:#fff;background:var(--orange);font-size:12px;line-height:16px;font-weight:700}.quick-tip{margin:auto 16px 20px;padding:19px 20px;border-radius:9px;color:#28364f;background:#fff5ff}.quick-tip strong{display:block;margin-bottom:14px;font-size:16px;font-weight:400}.quick-tip p{margin:0;font-size:14px;line-height:1.7}.workspace-main{display:flex;flex-direction:column;min-width:0;background:#fff}.workspace-title{padding:25px 34px 27px;border-bottom:1px solid var(--line)}.workspace-title h1{margin:0 0 8px;color:#1b2841;font-size:28px;line-height:1.25;font-weight:500}.workspace-title p{margin:0;color:#526078;font-size:16px;line-height:1.45}.cutout-workbench{position:relative;min-height:calc(100vh - 201px);padding:36px 24px 114px 34px;background:#fff}.workbench-grid{max-width:1648px;display:grid;grid-template-columns:minmax(420px,1fr) minmax(420px,1fr);grid-gap:26px;gap:26px}.workbench-column h2{margin:0 0 13px;color:#1f2d46;font-size:18px;line-height:1.3;font-weight:400}.drop-zone,.result-zone{height:min(63vh,714px);min-height:520px;border:2px dashed var(--dash);border-radius:10px;background:#fff;display:grid;place-items:center}.drop-zone{cursor:pointer}.drop-zone input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}.drop-zone__empty,.result-zone__empty,.result-zone__success{display:grid;justify-items:center;text-align:center}.round-icon{width:70px;height:70px;margin-bottom:19px;border-radius:50%;display:grid;place-items:center;color:#aab2c0;background:#f2f4f8;font-size:38px;line-height:1;font-weight:300}.round-icon--success{color:#fff;background:linear-gradient(135deg,var(--purple),var(--pink))}.drop-zone__empty strong{margin-bottom:10px;color:#27344e;font-size:18px;line-height:1.4;font-weight:400}.drop-zone__empty p,.result-zone__empty p,.result-zone__success p{margin:0;color:#7a8597;font-size:16px;line-height:1.7}.choose-file{margin-top:15px;padding:10px 27px;border:1px solid #d9dee7;border-radius:9px;color:#27344e;background:#fff;font-size:16px;line-height:1.3}.preview-image{max-width:calc(100% - 48px);max-height:calc(100% - 48px);object-fit:contain;border-radius:8px;box-shadow:var(--shadow)}.result-zone__success strong{margin-bottom:8px;color:#26344c;font-size:18px;font-weight:500}.detection-results{width:100%;height:100%;padding:24px;overflow:auto}.detection-summary{margin-bottom:18px;display:flex;align-items:center;justify-content:space-between;gap:16px;color:#26344c}.detection-summary strong{font-size:18px;font-weight:500}.detection-summary span{color:#7a8597;font-size:14px}.detection-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));grid-gap:16px;gap:16px}.detection-card{margin:0;overflow:hidden;border:1px solid var(--line);border-radius:12px;background:#fff;box-shadow:0 8px 18px rgba(42,23,89,.08)}.detection-card img{width:100%;aspect-ratio:1/1;object-fit:contain;background:#f8fafc}.detection-card figcaption{padding:10px 12px;display:flex;align-items:center;justify-content:space-between;gap:10px;color:#526078;font-size:13px}.action-bar{position:fixed;right:24px;bottom:19px;z-index:25;display:flex;align-items:center;gap:18px}.primary-action,.secondary-action{height:54px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;gap:9px;border:0;font-size:18px;line-height:1}.primary-action{width:170px;color:#fff;background:linear-gradient(100deg,#b45cf2,#e963b0)}.primary-action:disabled{opacity:.72}.secondary-action{width:170px;color:#a0a8b6;background:#fff;border:1px solid var(--line)}.secondary-action:disabled{cursor:not-allowed;opacity:.62}.help-button{position:fixed;right:14px;bottom:6px;z-index:26;width:38px;height:38px;border:0;border-radius:50%;color:#4a5568;background:#fff;box-shadow:0 3px 12px rgba(31,41,55,.18);font-size:22px}@media (max-width:1180px){.hero-card-row{grid-template-columns:1fr;justify-items:center}.advantage-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.workspace-layout{grid-template-columns:1fr}.tool-sidebar{display:none}.workbench-grid{grid-template-columns:1fr}.drop-zone,.result-zone{height:auto}}@media (max-width:720px){.brand-header__inner,.workspace-header__inner{width:calc(100vw - 24px)}.brand-tabs,.workspace-tabs{gap:6px}.brand-tab,.workspace-tab{min-width:0;padding:0 12px;font-size:14px}.brand-logo,.workspace-logo{font-size:22px}.landing-hero h1{font-size:38px}.landing-hero p{font-size:18px}.hero-card-image{width:min(414px,100%);height:auto}.advantage-grid{grid-template-columns:1fr}.cutout-workbench{padding:24px 16px 120px}}