:root{--ink:#101114;--muted:#667184;--line:#dfe4eb;--soft:#f5f7fa;--blue:#2859e8;--blue-dark:#1745ce;--blue-pale:#eef3ff;--green:#16654e;--red:#ac3d3d;--amber:#8a6420}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;-webkit-font-smoothing:antialiased}
button,input,select,textarea{font:inherit}
button{cursor:pointer;color:inherit}
a{color:inherit;text-decoration:none}
:focus-visible{outline:3px solid #91abff;outline-offset:3px}
.site-header{max-width:1440px;height:94px;margin:auto;padding:0 5%;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:20px;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;width:max-content}
.brand-logo{display:inline-flex;align-items:center;gap:12px;flex:none}
.brand-logo-wisa{display:block;width:128px;height:46px;background:url('./wisa-logo.png') 0 0 / 128px auto no-repeat}
.brand-logo-name{display:block;width:180px;height:18px;background:url('./wisa-logo.png') -18px -88px / 215px auto no-repeat}
.header-center{font-size:13px;font-weight:750;white-space:nowrap}
.header-center:hover{color:var(--blue)}
.header-status{justify-self:end;color:var(--muted);font-size:12px}
main{max-width:1440px;margin:auto;padding:0 5% 96px}
.page-intro{display:flex;justify-content:space-between;gap:40px;padding:76px 0 64px}
.intro-main{max-width:820px}
.eyebrow{margin:0;color:#7f90ad;font-size:11px;font-weight:800;letter-spacing:.25em}
.page-intro h1{margin:19px 0 0;font-size:clamp(41px,5.1vw,67px);line-height:1.14;letter-spacing:-.058em}
.page-intro p:not(.eyebrow){max-width:700px;margin:24px 0 0;color:var(--muted);font-size:16px;line-height:1.8}
.intro-index{padding-top:4px;color:var(--blue);font:700 46px ui-monospace,SFMono-Regular,monospace;white-space:nowrap}
.intro-index span{color:#a2adbd;font-size:16px}
.mode-tabs{display:flex;gap:0;border-bottom:1px solid var(--ink)}
.mode-tab{min-width:190px;padding:18px 23px;border:0;background:#fff;color:#718096;font-size:14px;text-align:left;font-weight:650}
.mode-tab span{margin-right:20px;color:#a9b2c1;font:11px ui-monospace,SFMono-Regular,monospace}
.mode-tab.active{background:var(--ink);color:#fff}
.mode-tab.active span{color:#b8c8fa}
.mode-view{display:none}
.mode-view.active{display:block}
.learning-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:76px;padding-top:64px}
.lesson-nav{padding-right:28px;border-right:1px solid var(--line)}
.nav-title{display:flex;justify-content:space-between;align-items:baseline;gap:10px;margin-bottom:16px;font-size:14px;font-weight:800}
.nav-title strong{color:var(--muted);font-size:11px;font-weight:650;white-space:nowrap}
.lesson-buttons{border-top:1px solid var(--line)}
.lesson-button{width:100%;padding:17px 0;border:0;border-bottom:1px solid var(--line);background:#fff;display:grid;grid-template-columns:33px 1fr 17px;align-items:center;gap:8px;text-align:left;color:#6f7b8d;font-size:14px}
.lesson-button span{color:#a4afbe;font:11px ui-monospace,SFMono-Regular,monospace}
.lesson-button b{font-weight:650}
.lesson-button small{font-size:13px;color:var(--green)}
.lesson-button.active{color:var(--ink)}
.lesson-button.active span{color:var(--blue)}
.lesson-button.active b{font-weight:800}
.rubric-mini{margin-top:48px;padding:24px;background:var(--soft)}
.rubric-mini p{margin:0;font-size:13px;font-weight:750}
.rubric-mini strong{display:block;margin-top:16px;font-size:48px;line-height:1;letter-spacing:-.07em}
.rubric-mini strong span{font-size:14px;letter-spacing:0}
.rubric-mini small{display:block;margin-top:15px;color:var(--muted);font-size:12px;line-height:1.75}
.lesson-content{min-width:0;padding-bottom:36px}
.lesson-kicker{display:flex;justify-content:space-between;gap:20px;color:var(--blue);font:700 11px ui-monospace,SFMono-Regular,monospace;letter-spacing:.1em}
.lesson-kicker span:last-child{font-family:inherit;letter-spacing:0}
.lesson-content h2{margin:22px 0 0;font-size:clamp(34px,4.2vw,54px);letter-spacing:-.05em;line-height:1.17}
.lesson-intro{max-width:720px;margin:24px 0 0;color:var(--muted);font-size:16px;line-height:1.85}
.lesson-objective{margin-top:36px;padding:18px 22px;border-left:3px solid var(--blue);background:var(--blue-pale);display:grid;grid-template-columns:100px 1fr;gap:20px}
.lesson-objective span{font-size:13px;font-weight:800;color:var(--blue)}
.lesson-objective p{margin:0;font-size:14px;line-height:1.75}
.lesson-section{margin-top:52px}
.lesson-section h3{margin:0 0 22px;font-size:20px;letter-spacing:-.02em}
.lesson-section ol{margin:0;padding:0;list-style:none;counter-reset:lesson-rule;border-top:1px solid var(--line)}
.lesson-section li{counter-increment:lesson-rule;padding:19px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:45px 1fr;gap:14px;font-size:15px;line-height:1.75}
.lesson-section li::before{content:"0" counter(lesson-rule);color:#9aa7b9;font:11px ui-monospace,SFMono-Regular,monospace;padding-top:5px}
.example-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.example-grid>div{min-width:0;padding:23px;background:var(--soft)}
.example-grid>div:last-child{background:#eef3ff}
.example-label{font-size:12px;font-weight:800}
.example-label.not-good{color:var(--red)}
.example-label.good{color:var(--blue)}
.example-grid p{margin:16px 0 0;font-size:15px;line-height:1.8;overflow-wrap:anywhere}
.history-note{margin:12px 0 0;color:#8290a3;font-size:12px;line-height:1.65}
.quick-heading{display:flex;justify-content:space-between;gap:20px;align-items:baseline}
.quick-heading h3{margin-bottom:15px}
.quick-heading span{color:#8c98a9;font-size:12px}
.quick-check>p{font-size:15px;line-height:1.75}
.quiz-choices{display:grid;gap:10px;margin-top:20px}
.quiz-choice{padding:15px 18px;border:1px solid var(--line);background:#fff;text-align:left;font-size:14px;line-height:1.7}
.quiz-choice:hover{border-color:#91a6df}
.quiz-choice.correct{border-color:#92c4b3;background:#eff9f5;color:var(--green)}
.quiz-choice.incorrect{border-color:#e0abab;background:#fff3f3;color:var(--red)}
.quiz-feedback{display:none;margin-top:16px;padding:17px 20px;background:var(--blue-pale);border-left:3px solid var(--blue);font-size:14px;line-height:1.7}
.lesson-actions{display:flex;justify-content:space-between;gap:16px;margin-top:42px}
.outline-button{min-height:44px;padding:0 19px;border:1px solid #cbd4e2;background:#fff;font-size:13px;font-weight:750}
.outline-button:hover{border-color:var(--blue);color:var(--blue)}
.outline-button:disabled{opacity:.45;cursor:not-allowed}
.primary-button{min-height:48px;padding:0 23px;border:0;border-radius:2px;background:var(--blue);color:#fff;font-size:13px;font-weight:800;box-shadow:0 9px 20px #2859e829}
.primary-button:hover{background:var(--blue-dark)}
.primary-button span{margin-left:16px}
.review-intro{display:flex;justify-content:space-between;gap:36px;align-items:center;padding:64px 0 45px}
.review-intro h2{margin:16px 0 0;font-size:clamp(34px,4.2vw,52px);letter-spacing:-.05em;line-height:1.16}
.review-intro p:not(.eyebrow){max-width:700px;margin:21px 0 0;color:var(--muted);font-size:15px;line-height:1.8}
.privacy-badge{flex:0 0 auto;padding:17px 19px;border:1px solid #b6c8f5;color:var(--blue);font-size:12px;font-weight:750;line-height:1.8}
.review-layout{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:62px}
.review-main{min-width:0}
.form-section{padding:36px 0 43px;border-top:1px solid var(--line)}
.section-line{display:grid;grid-template-columns:42px 1fr;gap:16px}
.section-number{padding-top:6px;color:var(--blue);font:12px ui-monospace,SFMono-Regular,monospace}
.section-line h3,.review-submit h3{margin:0;font-size:22px;letter-spacing:-.025em}
.section-line p,.review-submit p{max-width:650px;margin:8px 0 0;color:var(--muted);font-size:13px;line-height:1.7}
.fact-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:32px 0 0 58px}
.fact-grid label{display:grid;gap:8px;font-size:13px;font-weight:750}
.fact-grid .full-field{grid-column:1/-1}
.fact-grid input,.fact-grid select{width:100%;height:44px;padding:0 13px;border:1px solid #c9d1dc;border-radius:2px;background:#fff;color:var(--ink);font-size:14px;font-weight:400;outline:none}
.fact-grid input:focus,.fact-grid select:focus,textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px var(--blue-pale)}
.request-fieldset{margin:29px 0 0 58px;padding:20px;border:1px solid var(--line)}
.request-fieldset legend{padding:0 6px;font-size:13px;font-weight:750}
.request-fieldset p{margin:0 0 15px;color:var(--muted);font-size:12px;line-height:1.6}
.request-options{display:flex;flex-wrap:wrap;gap:13px 24px}
.request-options label{display:flex;align-items:center;gap:7px;font-size:13px;white-space:nowrap}
.request-options input{accent-color:var(--blue);width:16px;height:16px}
.upload-line{margin:28px 0 24px 58px;display:flex;align-items:center;gap:17px;flex-wrap:wrap}
.upload-button{padding:12px 17px;border:1px solid #c9d1dc;font-size:13px;font-weight:750;cursor:pointer}
.upload-button:hover{border-color:var(--blue);color:var(--blue)}
.upload-button:focus-visible{outline:3px solid #91abff;outline-offset:3px}
#document-file{position:absolute;width:1px;height:1px;opacity:0;overflow:hidden}
#file-status{color:#758196;font-size:12px}
.draft-label{display:block;margin:0 0 11px 58px;font-size:13px;font-weight:750}
#document-text{display:block;width:calc(100% - 58px);min-height:330px;margin-left:58px;padding:18px 20px;border:1px solid #c7d0dc;border-radius:2px;outline:none;resize:vertical;font-size:15px;line-height:1.8}
.draft-actions{display:flex;justify-content:space-between;align-items:center;margin:13px 0 0 58px;color:#8c98a8;font-size:12px}
.text-button{padding:0;border:0;background:none;color:var(--blue);font-size:13px;font-weight:750}
.file-error{margin:13px 0 0 58px;color:var(--red);font-size:13px;line-height:1.6}
.review-submit{display:flex;align-items:center;justify-content:space-between;gap:25px}
.review-submit .primary-button{white-space:nowrap}
.rubric-panel{align-self:start;padding:28px 26px;background:var(--soft)}
.rubric-panel h3{margin:17px 0 22px;font-size:20px;line-height:1.35}
.rubric-row{display:flex;justify-content:space-between;gap:10px;padding:14px 0;border-top:1px solid #d8dee7;font-size:13px}
.rubric-row strong{font-size:15px}
.rubric-row.process{margin-top:8px;border-top:1px solid #aeb9cb}
.rubric-note{margin:18px 0 0;color:var(--muted);font-size:12px;line-height:1.8}
.results{margin-top:75px;padding-top:42px;border-top:1px solid var(--ink);scroll-margin-top:20px}
.results-heading{display:flex;justify-content:space-between;align-items:end;gap:25px}
.results-heading h2{margin:14px 0 0;font-size:clamp(32px,4vw,48px);letter-spacing:-.045em}
.results-heading p:not(.eyebrow){margin:16px 0 0;color:var(--muted);font-size:14px;line-height:1.75}
.result-counts{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:38px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.result-counts div{padding:20px 25px;border-right:1px solid var(--line)}
.result-counts div:first-child{padding-left:0}
.result-counts div:last-child{border-right:0}
.result-counts strong{display:block;font-size:32px;letter-spacing:-.05em}
.result-counts span{font-size:12px;color:var(--muted)}
.issue-list{display:grid;gap:0;margin-top:35px}
.issue-card{display:grid;grid-template-columns:138px minmax(0,1fr);gap:28px;padding:27px 0;border-bottom:1px solid var(--line)}
.issue-tag{width:max-content;height:max-content;padding:6px 8px;background:var(--soft);font-size:11px;font-weight:750;white-space:nowrap}
.issue-tag.fix{color:var(--red);background:#fff0f0}
.issue-tag.review{color:var(--amber);background:#fff7e8}
.issue-tag.unverified{color:#5d6c83;background:#eff2f6}
.issue-card h3{margin:0;font-size:17px}
.issue-card p{margin:10px 0 0;color:var(--muted);font-size:14px;line-height:1.7;overflow-wrap:anywhere}
.issue-evidence{margin-top:13px;padding:11px 13px;background:var(--soft);color:#424a59;font-size:13px;line-height:1.7;overflow-wrap:anywhere}
.issue-category{margin-top:11px;color:#8b98a8;font-size:11px}
.no-issues{padding:32px 0;font-size:15px;line-height:1.8}
.result-limit{margin-top:37px;padding:24px;background:var(--blue-pale);border-left:3px solid var(--blue)}
.result-limit b{font-size:14px}
.result-limit p{margin:10px 0 0;color:#526078;font-size:13px;line-height:1.8}
footer{max-width:1440px;margin:auto;padding:31px 5%;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:25px;color:#7e899a;font-size:11px;line-height:1.7}
@media(max-width:980px){.learning-layout{grid-template-columns:235px 1fr;gap:42px}.review-layout{grid-template-columns:1fr}.rubric-panel{order:-1}.rubric-panel h3{margin-bottom:15px}.rubric-row{display:inline-flex;width:48%;margin-right:1%;padding-right:18px}.rubric-row.process{margin-top:0}}
@media(max-width:720px){.site-header{height:76px;padding:0 22px;grid-template-columns:1fr auto}.header-status{display:none}main{padding:0 22px 70px}.page-intro{padding:62px 0 45px}.intro-index{display:none}.page-intro h1{font-size:43px}.mode-tab{min-width:0;flex:1}.learning-layout{grid-template-columns:1fr;gap:42px;padding-top:40px}.lesson-nav{border-right:0;padding-right:0}.lesson-buttons{display:grid;grid-template-columns:1fr 1fr}.lesson-button{padding-right:12px}.rubric-mini{display:none}.lesson-content h2{font-size:40px}.review-intro{padding:50px 0 38px;display:block}.privacy-badge{display:inline-block;margin-top:22px}.fact-grid,.request-fieldset,.upload-line,.draft-label,.draft-actions,.file-error{margin-left:0}#document-text{margin-left:0;width:100%}.review-submit{align-items:start;flex-direction:column}.results-heading{align-items:start;flex-direction:column}.issue-card{grid-template-columns:1fr;gap:12px}footer{padding:25px 22px;flex-direction:column}}
@media(max-width:520px){.brand-logo{gap:8px}.brand-logo-wisa{width:100px;height:36px;background-size:100px auto}.brand-logo-name{width:140px;height:14px;background-size:167px auto;background-position:-14px -68px}.site-header{grid-template-columns:1fr auto}.page-intro h1{font-size:39px}.page-intro p:not(.eyebrow){font-size:15px}.lesson-buttons{grid-template-columns:1fr}.lesson-objective{grid-template-columns:1fr;gap:7px}.example-grid{grid-template-columns:1fr}.fact-grid{grid-template-columns:1fr}.fact-grid .full-field{grid-column:auto}.rubric-row{width:100%;margin-right:0}.result-counts div{padding:18px 12px}.result-counts div:first-child{padding-left:0}.result-counts strong{font-size:27px}}
@media(max-width:400px){.site-header{padding:0 12px;gap:8px}.brand-logo{gap:6px}.brand-logo-wisa{width:70px;height:25px;background-size:70px auto}.brand-logo-name{width:100px;height:10px;background-size:119px auto;background-position:-10px -49px}.header-center{font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}