@keyframes ws-spin{to{transform:rotate(360deg)}}.ws-spin{width:18px;height:18px;border:2px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:ws-spin .8s linear infinite;flex-shrink:0}.ws-root{padding:16px 16px 40px;min-height:60vh}@media(min-width:860px){.ws-root{padding:24px 24px 48px}}.ws-toolbar{max-width:794px;margin:0 auto 16px;display:flex;align-items:center;gap:10px}.ws-paper{max-width:794px;margin:0 auto;background:var(--surface);box-shadow:var(--shadow-card);border:1px solid var(--border);padding:28px 20px 36px;display:flex;flex-direction:column;gap:16px}@media(min-width:600px){.ws-paper{padding:52px 60px 48px}}.ws-hero{display:flex;flex-direction:column;gap:14px}@media(min-width:600px){.ws-hero{flex-direction:row;justify-content:space-between;align-items:flex-start}}.ws-kicker{font-size:12px;font-weight:700;color:var(--primary);letter-spacing:.06em}.ws-title{font-family:Newsreader,Georgia,serif;font-size:28px;font-weight:500;line-height:1.15}.ws-meta{font-size:12.5px;color:var(--ink-soft)}.ws-score{display:flex;align-items:center;gap:14px;background:var(--report-header);color:#fff;border-radius:14px;padding:12px 16px;flex-shrink:0}.ws-score-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:2px 14px;font-size:12px;color:var(--report-fill);font-variant-numeric:tabular-nums}.ws-overview{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px}.ws-ov-card{border:1px solid var(--border);border-radius:12px;padding:12px 14px;display:flex;flex-direction:column;gap:4px}.ws-intro{font-size:12.5px;color:var(--ink-soft);line-height:1.6;background:var(--bg);border-radius:10px;padding:10px 14px}.ws-h2{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;flex-wrap:wrap}.ws-tag{font-size:11px;font-weight:700;color:#fff;border-radius:999px;padding:3px 9px;flex-shrink:0}.ws-tag-grammar{background:var(--grammar)}.ws-tag-vocabulary{background:var(--vocab)}.ws-tag-coherence{background:var(--coherence)}.ws-rule{font-size:14px;line-height:1.7;color:var(--ink)}.ws-lab{font-size:11px;font-weight:700;letter-spacing:.04em;color:var(--ink-faint);text-transform:uppercase}.ws-examples{display:grid;gap:10px}@media(min-width:600px){.ws-examples-2{grid-template-columns:repeat(2,minmax(0,1fr))}.ws-examples-3{grid-template-columns:repeat(3,minmax(0,1fr))}}.ws-ex{display:flex;flex-direction:column;gap:4px;border:1px solid var(--border);border-radius:10px;padding:10px 12px}.ws-ex-o{font-size:13.5px;line-height:1.55;color:var(--ink-soft);text-decoration:line-through}.ws-ex-n{font-size:13.5px;line-height:1.55;font-weight:700;text-decoration:underline;text-decoration-color:var(--success);text-underline-offset:3px}.ws-ex-w{font-size:12.5px;line-height:1.5;color:var(--ink-soft)}.ws-template{display:grid;gap:10px}@media(min-width:600px){.ws-template{grid-template-columns:repeat(3,minmax(0,1fr))}}.ws-template-card{border:1px dashed #c9d0da;border-radius:10px;padding:10px 12px;font-size:13px;line-height:1.55}.ws-q{display:flex;gap:10px;font-size:14px;line-height:1.7}.ws-q-n{width:20px;flex-shrink:0;font-weight:700;color:var(--ink-faint);font-variant-numeric:tabular-nums}.ws-line{border-bottom:1px solid #c9d0da;height:22px}.ws-section{display:flex;flex-direction:column;gap:12px}.ws-hr{height:1px;background:var(--border)}.ws-closing{background:var(--primary-soft);border-radius:12px;padding:12px 14px;font-size:13px;line-height:1.6;color:var(--ink)}.ws-answers{display:flex;flex-direction:column;gap:16px}.ws-ans-grid{display:grid;gap:20px 28px;font-size:13px;line-height:1.65}@media(min-width:600px){.ws-ans-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}.ws-ans-col{display:flex;flex-direction:column;gap:6px}.ws-print-foot{display:none}@media print{.app-header,.ws-toolbar,.ws-no-print{display:none!important}.app-shell,.app-body{background:#fff!important;max-width:none!important;min-height:0!important}.ws-root{padding:0}.ws-paper{box-shadow:none;border:none;max-width:none;padding:0}.ws-ex,.ws-q,.ws-template-card,.ws-ov-card{break-inside:avoid}.ws-title,.ws-lab{break-after:avoid}.ws-answers{break-before:page}.ws-print-foot{display:flex;position:fixed;left:0;right:0;bottom:8px;justify-content:space-between;font-size:11px;color:var(--ink-faint)}@page{size:A4;margin:16mm 14mm 18mm}}:root{--font-sans: Manrope, -apple-system, "PingFang SC", system-ui, sans-serif;--bg: #f7f9fc;--surface: #ffffff;--ink: #1a2233;--ink-soft: #5a6577;--ink-faint: #9aa4b2;--primary: #2b5ce6;--primary-soft: #eaf0fe;--border: #e6eaf0;--divider: #f0f2f6;--success: #23a26d;--report-header: #34528f;--report-card: rgba(255, 255, 255, .1);--report-track: rgba(255, 255, 255, .18);--report-fill: #dce6fa;--report-label: #c7d6f5;--report-faint: #c2cee6;--grammar: #d44040;--grammar-bg: rgba(212, 64, 64, .12);--vocab: #c87a1c;--vocab-bg: rgba(200, 122, 28, .12);--coherence: #2e6fb6;--coherence-bg: rgba(46, 111, 182, .12);--task: #7a4db3;--task-bg: rgba(122, 77, 179, .12);--r-btn: 14px;--r-card: 16px;--r-card-lg: 20px;--r-pill: 999px;--shadow-card: 0 4px 16px rgba(26, 34, 51, .04);--shadow-primary: 0 8px 20px rgba(43, 92, 230, .22)}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:var(--font-sans);background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}h1,h2,h3,h4,p{margin:0}button{font-family:inherit;cursor:pointer}input,textarea{font-family:inherit}a{color:var(--primary);text-decoration:none}img{max-width:100%}.num{font-family:Space Grotesk,Manrope,sans-serif;font-variant-numeric:tabular-nums}.serif{font-family:Newsreader,Georgia,serif}.desktop-only{display:none!important}@media(min-width:860px){.mobile-only{display:none!important}.desktop-only{display:block!important}}.app-shell{min-height:100dvh;background:var(--bg)}.app-body{width:100%;max-width:440px;margin:0 auto;min-height:100dvh;background:var(--bg);position:relative}@media(min-width:860px){.app-body{max-width:none;min-height:auto;background:transparent}}.app-header{display:none}@media(min-width:860px){.app-header{display:flex;align-items:center;gap:16px;height:64px;padding:0 40px;background:var(--surface);border-bottom:1px solid var(--border)}}.page{padding:8px 20px 32px}@media(min-width:860px){.page{max-width:1200px;margin:0 auto;padding:26px 40px 44px}}.wrap-narrow{width:100%}@media(min-width:860px){.wrap-narrow{max-width:760px;margin:0 auto}}.home-hero{display:grid;grid-template-columns:1fr;gap:24px;align-items:center}@media(min-width:860px){.home-hero{grid-template-columns:1fr 380px;gap:40px;margin-bottom:16px}}.hero-title{font-size:28px;font-weight:800;line-height:1.2;letter-spacing:-.01em;margin:0 0 14px}@media(min-width:860px){.hero-title{font-size:42px;line-height:1.15;margin-bottom:16px}}.history-grid{display:grid;grid-template-columns:1fr;gap:12px}@media(min-width:860px){.history-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}}.submit-grid{display:grid;grid-template-columns:1fr;gap:22px;align-items:start}@media(min-width:860px){.submit-grid{grid-template-columns:1fr 300px;gap:28px}}.submit-title,.submit-tips{display:none}@media(min-width:860px){.submit-title,.submit-tips{display:flex}}.report-hero-grid{display:grid;grid-template-columns:1fr;gap:28px;align-items:center}@media(min-width:860px){.report-hero-grid{grid-template-columns:300px 1fr;gap:36px}}.report-body{display:grid;grid-template-columns:1fr;gap:22px;align-items:start;margin-top:22px}.wb-page{height:calc(100dvh - 64px);box-sizing:border-box;padding:16px 24px 18px;display:flex;flex-direction:column;gap:14px}.wb-grid{display:grid;grid-template-columns:64px 340px minmax(0,1fr);gap:12px;flex:1;min-height:0}.wb-rail{background:var(--surface);border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow-card);display:flex;flex-direction:column;align-items:center;gap:6px;padding:10px 0}.wb-tab{position:relative;width:50px;height:54px;border:none;border-radius:12px;background:transparent;color:var(--ink-faint);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;font-size:10.5px;font-weight:700;padding:0;cursor:pointer}.wb-tab:hover{background:var(--divider);color:var(--ink-soft)}.wb-tab.on{background:var(--primary-soft);color:var(--primary)}.wb-badge{position:absolute;top:5px;right:5px;min-width:16px;height:16px;padding:0 4px;border-radius:8px;background:var(--ink-faint);color:#fff;font-size:10px;font-weight:800;display:flex;align-items:center;justify-content:center}.wb-tab.on .wb-badge{background:var(--primary)}.wb-col{background:var(--surface);border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow-card);display:flex;flex-direction:column;overflow:hidden;min-height:0}.wb-bar{height:50px;flex-shrink:0;padding:0 18px;border-bottom:1px solid var(--divider);background:#fbfcfe;display:flex;align-items:center;gap:10px}.wb-scroll{flex:1;min-height:0;overflow-y:auto}.ann-mark{-webkit-box-decoration-break:clone;box-decoration-break:clone}.ann-mark-on{animation:ann-ring .7s ease-out 1}@keyframes ann-ring{0%{box-shadow:0 0 0 1px var(--ann-ring),0 0 0 4px var(--ann-ring)}to{box-shadow:0 0 0 1px var(--ann-ring),0 0 0 14px #0000}}.ann-card{animation:ann-drop .22s cubic-bezier(.2,.7,.2,1) both;transform-origin:top}@keyframes ann-drop{0%{opacity:0;transform:translateY(-6px) scaleY(.96)}to{opacity:1;transform:none}}@media(prefers-reduced-motion:reduce){.ann-card,.ann-mark-on{animation:none}}