:root{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;--cp-primary: #00acc1;--cp-primary-deep: #0097a7;--cp-primary-soft: #e0f7fa;--cp-heading: #00695c;--cp-text: #546e7a;--cp-muted: #78909c;--cp-surface: rgba(255, 255, 255, .88);--cp-surface-strong: rgba(255, 255, 255, .96);--cp-border: rgba(255, 255, 255, .72);--cp-shadow: rgba(0, 172, 193, .16);--cp-shadow-strong: rgba(0, 151, 167, .24);--cp-success: #1f9d74;--cp-warning: #d97706;--cp-danger: #d64545;--cp-radius-xl: 24px;--cp-radius-lg: 18px;--cp-radius-md: 14px;--cp-pill: 999px;color:var(--cp-text);background:linear-gradient(135deg,#f0fdff,#e0f7fa)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;min-height:100vh;color:var(--cp-text);background:radial-gradient(circle at top right,rgba(255,255,255,.52) 0%,transparent 28%),radial-gradient(circle at bottom left,rgba(255,255,255,.38) 0%,transparent 24%),linear-gradient(135deg,#f0fdff,#e0f7fa);line-height:1.7;overflow-x:hidden}a{color:inherit;text-decoration:none}button,textarea,input,select{font:inherit}body:before,body:after{content:"";position:fixed;inset:auto;border-radius:50%;pointer-events:none;z-index:-1;background:radial-gradient(circle,rgba(255,255,255,.42) 0%,transparent 72%)}body:before{width:520px;height:520px;top:-180px;right:-140px}body:after{width:420px;height:420px;bottom:-120px;left:-140px}.shell{min-height:100vh;display:flex;flex-direction:column}.main-header{position:sticky;top:0;z-index:20;-webkit-backdrop-filter:saturate(180%) blur(14px);backdrop-filter:saturate(180%) blur(14px);background:#ffffffb8;border-bottom:1px solid var(--cp-border);box-shadow:0 0 5px #00000026}.header-container,.page-container,.footer-container{width:min(1240px,calc(100vw - 32px));margin:0 auto}.header-container{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:20px 0}.main-content{flex:1;padding:28px 0 40px}.main-footer{padding:52px 0 42px}.footer-container{display:flex;justify-content:center;text-align:center;color:var(--cp-muted);font-size:14px}.footer-shell{width:min(100%,1120px);display:grid;justify-items:center;gap:24px;padding:28px 20px 0;border-top:1px solid rgba(0,151,167,.16)}.footer-nav{display:flex;flex-wrap:wrap;justify-content:center;gap:16px 56px}.footer-nav-item{display:inline-flex;align-items:center;justify-content:center;padding:4px 0;color:#007d88;font-size:1.02rem;font-weight:400;letter-spacing:.03em}.footer-link{transition:color .2s ease,opacity .2s ease}.footer-link:hover{color:var(--cp-heading);opacity:.86}.footer-legal{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;color:#546e7ae6;font-size:1rem;line-height:1.8}.footer-legal-item{display:inline-flex;align-items:center;gap:10px}.footer-legal-item+.footer-legal-item:before{content:"|";margin:0 18px;color:#00695c4d}.footer-brand{color:var(--cp-heading);font-weight:400}.logo{display:flex;align-items:center;gap:12px}.logo-mark{width:46px;height:46px;display:grid;place-items:center;border-radius:16px;background:linear-gradient(135deg,#00acc129,#0097a714);box-shadow:0 10px 24px var(--cp-shadow)}.logo-badge{width:22px;height:22px;border-radius:50%;background:linear-gradient(135deg,var(--cp-primary),var(--cp-primary-deep));box-shadow:0 0 0 7px #00acc11f}.logo-image{width:28px;height:28px;object-fit:contain;display:block}.logo-copy{display:grid;gap:2px}.logo-title{font-size:21px;font-weight:700;color:var(--cp-heading);letter-spacing:.02em}.logo-subtitle{font-size:13px;color:var(--cp-muted)}.nav{display:flex;gap:18px;flex-wrap:wrap;align-items:center;justify-content:flex-end}.nav button,.primary,.ghost{border:0;border-radius:var(--cp-pill);padding:11px 18px;cursor:pointer;transition:transform .22s ease,box-shadow .22s ease,background .22s ease}.nav button{background:#ffffffeb;box-shadow:0 10px 24px #0000000d;color:var(--cp-text)}.nav-link{position:relative;display:inline-flex;align-items:center;padding:10px 6px 14px;color:var(--cp-text);font-weight:600;line-height:1.2;transition:color .22s ease,opacity .22s ease}.nav-link:after{content:"";position:absolute;left:6px;right:6px;bottom:0;height:5px;border-radius:var(--cp-pill);background:linear-gradient(135deg,var(--cp-primary),var(--cp-primary-deep));opacity:0;transform:scaleX(.62);transform-origin:center;transition:opacity .22s ease,transform .22s ease}.nav-link:hover,.nav-link.is-active{color:var(--cp-heading)}.nav-link.is-active:after{opacity:1;transform:scaleX(1)}.nav-user-menu{position:relative;width:fit-content}.nav-user-menu .nav-user-trigger{min-width:0;max-width:148px;display:inline-flex;align-items:center;justify-content:flex-start;gap:6px;text-align:left;padding:4px 6px 4px 4px;background:transparent;box-shadow:none;border:1px solid transparent;border-radius:8px}.nav-user-menu .nav-user-trigger.is-open{background:#e0f7fab8;border-color:#00acc129}.nav-user-menu .nav-user-trigger:hover{transform:none;background:#e0f7fa75}.nav-user-avatar{width:30px;height:30px;flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;overflow:hidden;background:linear-gradient(135deg,#00acc129,#0097a714);color:var(--cp-heading);box-shadow:inset 0 0 0 1px #00acc11f}.nav-user-avatar-image{width:100%;height:100%;object-fit:cover;display:block}.nav-user-avatar-icon{width:16px;height:16px}.nav-user-name{min-width:0;flex:1;color:var(--cp-heading);font-weight:700;font-size:14px;line-height:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.nav-user-chevron{flex-shrink:0;color:var(--cp-muted);font-size:8px;transition:transform .22s ease}.nav-user-trigger.is-open .nav-user-chevron{transform:rotate(180deg)}.nav-user-dropdown{position:absolute;top:calc(100% + 8px);right:0;min-width:116px;width:auto;padding:4px;display:grid;gap:2px;border-radius:4px;background:#f8fafcf5;border:1px solid rgba(203,213,225,.7);box-shadow:0 12px 24px #0f172a1a}.nav-user-menu .nav-user-dropdown-item{width:100%;border:0;border-radius:4px;padding:8px 10px;cursor:pointer;text-align:left;background:transparent;color:var(--cp-text);font-size:14px;line-height:1.2;transition:background .22s ease,transform .22s ease,color .22s ease}.nav-user-menu .nav-user-dropdown-item:hover{transform:none;background:#e0f7fadb}.nav-user-menu .nav-user-dropdown-item-danger{color:var(--cp-danger)}.nav button:hover,.primary:hover,.ghost:hover{transform:translateY(-2px)}.primary{background:linear-gradient(135deg,var(--cp-primary),var(--cp-primary-deep));color:#fff;box-shadow:0 16px 32px var(--cp-shadow-strong)}.ghost{background:#ffffffdb;color:var(--cp-heading);box-shadow:0 8px 20px #0000000d}.hero,.panel,.card,.modal-card,.feedback-item,.blank-field,.status{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.hero,.panel{background:var(--cp-surface);border:1px solid var(--cp-border);border-radius:var(--cp-radius-xl);box-shadow:0 24px 60px #0000000f}.hero{padding:42px;display:grid;gap:24px}.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:var(--cp-pill);background:#00acc11f;color:var(--cp-heading);font-weight:600;width:fit-content}.answer-context{display:flex;flex-wrap:wrap;gap:18px;color:var(--cp-muted);font-size:14px;line-height:1.5}.answer-context-item{display:inline-flex;align-items:baseline;gap:8px;min-width:0}.answer-context-label{color:#0b1f2b8a;font-weight:600}.answer-context-value{color:var(--cp-heading);font-weight:700}.hero h1,.panel h1,.panel h2,.panel h3{margin:0;color:var(--cp-heading)}.hero-title{max-width:820px;font-size:clamp(2.5rem,5vw,4rem);font-weight:800;line-height:1.15;margin:0;background:linear-gradient(135deg,#00838f,#00acc1);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-subtitle{max-width:780px;font-size:1.08rem;color:var(--cp-text)}.hero-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.stat-card{background:#ffffffe0;border:1px solid rgba(255,255,255,.72);border-radius:20px;padding:18px 20px;box-shadow:0 10px 28px #0000000a}.stat-label{display:block;color:var(--cp-muted);font-size:13px;margin-bottom:8px}.stat-value{color:var(--cp-heading);font-size:24px;font-weight:700}.hero-actions,.actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center;justify-content:center}.landing-stack{display:grid;gap:24px}.landing-section{padding:6rem 0}.landing-hero{background:transparent;border:0;box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;padding:64px 0 36px;justify-items:center;text-align:center}.landing-hero .page-title-copy{justify-items:center}.landing-hero .hero-subtitle{text-align:center}.landing-hero .hero-actions{justify-content:center}.landing-cta-wrap{padding-top:2px}.landing-btn{position:relative;overflow:hidden;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:.9rem 2.1rem;border-radius:var(--cp-pill);font-weight:700;letter-spacing:.3px;transition:transform .3s ease,box-shadow .3s ease,background .3s ease}.landing-btn:hover{transform:translateY(-3px) scale(1.02)}.landing-btn:before{content:"";position:absolute;inset:0 auto 0 -110%;width:40%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.36),transparent);transition:left .7s ease}.landing-btn:hover:before{left:120%}.landing-btn-primary{color:#fff;background:linear-gradient(135deg,var(--cp-primary) 0%,var(--cp-primary-deep) 100%);box-shadow:0 14px 32px #00acc13d}.landing-btn-primary:hover{box-shadow:0 20px 38px #00acc157}.landing-btn-secondary{color:#00838f;background:#ffffffe6;border:2px solid rgba(0,151,167,.7);box-shadow:0 8px 22px #0000000f}.landing-btn-secondary:hover{background:#fff;box-shadow:0 12px 28px #0000001a}.landing-btn-light{color:#00838f;background:#ffffffeb;box-shadow:0 8px 20px #0000001f}.landing-btn-light:hover{background:#fff;box-shadow:0 12px 30px #00000029}.section-title{margin:0;color:var(--cp-heading);font-size:2rem;text-align:center}.section-subtitle{margin:8px 0 0;color:var(--cp-muted);text-align:center}.features-grid{display:grid;gap:30px;margin:20px auto 0;grid-template-columns:repeat(3,minmax(0,1fr))}.feature-card{border-radius:20px;background:#ffffffe6;border:1px solid rgba(255,255,255,.8);padding:18px;box-shadow:0 10px 26px #0000000a}.feature-icon{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;color:var(--cp-heading);font-weight:700;background:#00acc124}.feature-title{margin:12px 0 8px;color:var(--cp-heading)}.cta-section{border-radius:24px;padding:4rem 2rem;background:linear-gradient(135deg,var(--cp-primary),var(--cp-primary-deep));color:#fff;box-shadow:0 20px 40px #00acc14d;text-align:center}.cta-title,.cta-subtitle{margin:0}.cta-subtitle{margin-top:8px;opacity:.92;margin-bottom:18px}.panel{padding:28px}.page-title-row{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:18px}.page-title-copy{display:grid;gap:26px}.dashboard-sidebar .page-title-copy{display:block;gap:0;margin-bottom:2px}.dashboard-sidebar .page-title-copy h2{margin-bottom:4px}.dashboard-sidebar .page-title-copy .panel-intro{font-size:12px;line-height:1.4}.page-title-copy p,.panel-intro{margin:0;color:var(--cp-muted)}.grid{display:grid;gap:20px}.grid.two{grid-template-columns:300px minmax(0,1fr)}.grid.dashboard-main{grid-template-columns:minmax(0,1fr)}.dashboard-grid{grid-template-columns:260px minmax(0,1fr)}.dashboard-layout{align-items:start;min-height:calc(100vh - 150px)}.dashboard-sidebar{gap:10px;padding:20px;display:flex;flex-direction:column;align-items:stretch}.dashboard-sidebar .page-title-copy{gap:6px}.subject-list{display:flex;flex-direction:column;gap:6px}.wallet-summary{display:grid;gap:8px;padding:16px 18px;border-radius:18px;background:linear-gradient(180deg,#e0f7faeb,#fffffff0);border:1px solid rgba(0,172,193,.14)}.wallet-summary-label{font-size:13px;color:var(--cp-muted);letter-spacing:.06em}.wallet-summary-main{display:flex;align-items:flex-end;justify-content:space-between;gap:12px}.wallet-summary-value{font-size:34px;line-height:1;color:var(--cp-heading)}.wallet-summary-action{flex-shrink:0}.subject-item{position:relative;width:100%;text-align:left;border:1px solid rgba(0,172,193,.14);background:#ffffffc7;border-radius:12px;padding:8px 16px 8px 10px;display:grid;gap:2px;cursor:pointer;transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease}.subject-item:hover{transform:translateY(-1px);border-color:#00acc157;box-shadow:0 8px 20px #00acc114}.subject-item.active{border-color:#00acc17a;box-shadow:0 0 0 1px #00acc13d,0 10px 22px #00acc124}.subject-item.active:after{content:"›";position:absolute;top:50%;right:12px;transform:translateY(-50%);font-size:22px;line-height:1;color:var(--cp-primary-deep);font-weight:700}.subject-name{font-weight:600;font-size:14px;color:var(--cp-heading)}.subject-alias{font-size:12px;color:var(--cp-muted);line-height:1.35}.paper-accordion{display:grid;gap:10px}.paper-item{border-radius:14px;border:1px solid rgba(0,172,193,.14);background:#ffffffdb;overflow:hidden}.paper-item.expanded{border-color:#00acc161;box-shadow:0 10px 24px #00acc11f}.paper-item.expanded .paper-head{background:linear-gradient(135deg,var(--cp-primary),var(--cp-primary-deep))}.paper-item.expanded .paper-head-main strong,.paper-item.expanded .paper-head .meta,.paper-item.expanded .paper-head .paper-chevron{color:#fff}.paper-item.expanded .paper-head .paper-badge{background:#ffffff2e;color:#fff}.paper-head{padding:12px 14px;display:flex;justify-content:space-between;align-items:center;gap:12px}.paper-head-toggle{flex:1;min-width:0;border:0;background:transparent;color:inherit;cursor:pointer;padding:0;display:flex;justify-content:space-between;align-items:center;gap:12px;text-align:left}.paper-item-locked{background:#f1f5f9fa;border-color:#94a3b86b;opacity:.62}.paper-item-locked .paper-head-main strong,.paper-item-locked .paper-head .meta,.paper-item-locked .paper-chevron{color:#64748b}.paper-item-locked .paper-badge{background:#94a3b824;color:#64748b}.paper-head-toggle:disabled{cursor:not-allowed}.paper-head-main{display:grid;gap:5px}.paper-head-main strong{color:var(--cp-heading)}.ellipsis-title{display:inline-block;max-width:min(780px,100%);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;vertical-align:bottom}.paper-badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;background:#00acc11a;color:#007d88;font-size:12px;font-weight:600}.paper-badge-free{background:#16a34a1f;color:#15803d}.paper-badge-lock{background:#94a3b829;color:#475569}.paper-chevron{font-size:12px;color:var(--cp-muted);white-space:nowrap}.paper-body{border-top:1px solid rgba(0,172,193,.14);padding:8px 10px 10px;display:grid;gap:8px}.scenario-row{display:flex;justify-content:space-between;align-items:center;gap:10px;border-radius:12px;border:1px solid rgba(0,172,193,.1);background:#ffffffd1;padding:10px 12px}.scenario-row .scenario-title{display:grid;gap:5px}.scenario-row .scenario-action{flex-shrink:0}.scenario-row-locked{background:#f1f5f9f5;border-color:#94a3b847;opacity:.7}.scenario-row-locked .scenario-title strong,.scenario-row-locked .meta{color:#64748b}.scenario-row-locked .paper-badge{background:#94a3b824;color:#64748b}.scenario-title strong{color:#234}.scenario-action .primary{padding:8px 14px;font-size:13px}.ghost.ghost-compact,.primary.primary-compact{padding:7px 12px;font-size:13px;border-radius:999px}.scenario-action-disabled{padding:8px 14px;font-size:13px;min-width:96px;cursor:not-allowed;opacity:1;color:#64748b;border-color:#94a3b852;background:#e2e8f0a6}.sidebar-card{position:sticky;top:106px;display:grid;gap:16px}.dashboard-grid .sidebar-card.dashboard-sidebar{display:flex;flex-direction:column;align-items:stretch;gap:8px;position:sticky;top:106px}.dashboard-grid .sidebar-card.dashboard-sidebar>.page-title-copy{flex:0 0 auto;margin:0}.dashboard-grid .sidebar-card.dashboard-sidebar>.subject-list{flex:0 0 auto}.dashboard-main-scroll{max-height:none;overflow:visible;padding-right:0}.list{display:grid;gap:14px}.card{border-radius:20px;background:#ffffffeb;border:1px solid rgba(255,255,255,.76);padding:18px;cursor:pointer;box-shadow:0 10px 26px #0000000a;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}.card:hover{transform:translateY(-3px);box-shadow:0 16px 32px #0000000f}.card.active{border-color:#00acc18c;box-shadow:0 0 0 1px #00acc14d,0 16px 32px #00acc124}.muted{color:var(--cp-muted)}.meta{display:flex;gap:10px;flex-wrap:wrap;color:var(--cp-muted);font-size:13px}.meta-pill,.admin-badge,.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:var(--cp-pill);background:#00acc11a;color:var(--cp-heading);font-size:12px;font-weight:600}.stack{display:grid;gap:18px}.answer-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:24px;align-items:start;max-width:1120px;margin:0 auto}.answer-main,.answer-side{display:grid;gap:18px}.answer-main img{max-width:100%;height:auto}.answer-side{position:sticky;top:106px;align-self:start;width:320px}.answer-side .panel{overflow:visible}.answer-hero-panel{position:relative;overflow:hidden;padding:22px 24px;background:radial-gradient(circle at top right,rgba(224,247,250,.96) 0%,rgba(224,247,250,.38) 26%,transparent 58%),linear-gradient(145deg,#fffffff7,#f2fbfce6)}.answer-hero-panel:before{content:"";position:absolute;inset:22px auto auto -46px;width:180px;height:180px;border-radius:50%;background:radial-gradient(circle,rgba(0,172,193,.12) 0%,transparent 72%);pointer-events:none}.answer-hero-copy{position:relative;z-index:1;gap:10px}.answer-hero-header{display:flex;align-items:center;gap:14px;flex-wrap:wrap}.answer-hero-title-group{min-width:0;display:grid;gap:2px}.answer-hero-eyebrow{flex-shrink:0;box-shadow:0 10px 24px #00acc11f}.answer-hero-context{gap:14px}.answer-hero-title{margin:0;color:var(--cp-heading);font-size:clamp(1.56rem,3vw,2.18rem);line-height:1.04;letter-spacing:-.02em}.answer-hero-subtitle{margin:0;max-width:min(760px,100%);color:var(--cp-heading);font-size:1rem;line-height:1.45;font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.answer-hero-intro{max-width:720px;font-size:.94rem;line-height:1.55}.answer-overview-label,.answer-side-summary-label,.answer-side-card-label,.answer-section-kicker{color:var(--cp-muted);font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.answer-overview-note,.answer-side-summary-note,.answer-stem-note,.answer-overview-inline-note{margin:0;color:var(--cp-muted);line-height:1.65}.answer-progress-track{position:relative;height:12px;border-radius:999px;background:#00acc11f;overflow:hidden}.answer-progress-track-fill{display:block;height:100%;border-radius:inherit;background:linear-gradient(135deg,var(--cp-primary),var(--cp-primary-deep));box-shadow:0 6px 16px #00acc13d}.answer-overview-grid{position:relative;z-index:1;margin-top:12px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.answer-overview-card{display:grid;gap:8px;padding:12px 14px;border-radius:18px;border:1px solid rgba(255,255,255,.82);background:#ffffffd1;box-shadow:0 10px 24px #0f172a0a}.answer-overview-inline{display:flex;align-items:baseline;flex-wrap:wrap;gap:8px 12px}.answer-overview-inline-note{font-size:.95rem}.answer-overview-value,.answer-side-summary-value{color:var(--cp-heading);font-size:1rem;line-height:1.4;font-weight:800}.answer-stem-panel{display:grid;gap:16px;padding:22px 24px;background:linear-gradient(180deg,#fffffff0,#f8fcfceb)}.answer-stem-head{padding-bottom:14px;border-bottom:1px solid rgba(0,172,193,.12)}.answer-stem-head-copy{display:grid;gap:8px}.answer-section-kicker{display:inline-flex;align-items:center;width:fit-content}.answer-stem-title{margin:0;color:var(--cp-heading);font-size:clamp(1.28rem,2.6vw,1.68rem);line-height:1.25}.answer-stem-content{color:var(--cp-text);font-size:.98rem}.answer-side-panel{display:grid;gap:12px;padding:20px 22px;background:linear-gradient(180deg,#fffffffa,#f6fcfcf0)}.answer-side-copy{gap:4px}.answer-side-status-card{display:grid;gap:0}.answer-side-status{padding:11px 14px;border-radius:15px;font-size:.94rem;line-height:1.45;font-weight:700}.answer-side-summary-grid{display:grid;gap:10px}.answer-side-summary-card{display:grid;gap:6px;padding:12px 14px;border-radius:16px;background:#ffffffeb;border:1px solid rgba(0,172,193,.12);box-shadow:0 12px 26px #0097a714}.answer-side-summary-head{display:flex;align-items:baseline;justify-content:space-between;gap:8px 12px;flex-wrap:wrap}.answer-side-progress-track{margin-top:2px;height:8px}.answer-side-summary-note{font-size:.93rem;line-height:1.55}.answer-side-actions{margin-top:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.answer-side-history-button{grid-column:1 / -1}.answer-block{display:grid;gap:12px;padding:18px 20px;border-radius:20px;background:#fffc;border:1px solid rgba(255,255,255,.7)}.answer-item-head{gap:10px}.answer-item-head h3{margin:0;line-height:1.28}.answer-item-head .panel-intro{font-size:.95rem;line-height:1.5}.answer-question-content{display:grid;gap:8px;min-width:0;color:var(--cp-text)}.answer-question-content>:is(h1,h2,h3,h4,h5,h6,p,div,table,ul,ol,blockquote,pre,figure,dl,hr){margin-top:0;margin-bottom:0;max-width:100%}.answer-question-content>:is(pre,figure){overflow-x:auto}.answer-question-content>:is(h1,h2,h3,h4,h5,h6,p,div,table,ul,ol,blockquote,pre,figure,dl,hr)+:is(h1,h2,h3,h4,h5,h6,p,div,table,ul,ol,blockquote,pre,figure,dl,hr){margin-top:8px}.answer-block textarea,.auth-card textarea,.admin-form textarea,.admin-form input,.admin-form select,input,textarea,select{width:100%;border-radius:14px;border:1px solid rgba(0,172,193,.24);background:#ffffffe0;padding:12px 14px;outline:none;transition:border-color .22s ease,box-shadow .22s ease,background .22s ease}input:focus,textarea:focus,select:focus{border-color:#00acc1cc;box-shadow:0 0 0 4px #00acc11a;background:#fff}.answer-block textarea{min-height:148px;resize:vertical}.calc-editor{font-family:Consolas,SFMono-Regular,Courier New,monospace;line-height:1.8}.inline-fill-blank{display:block;line-height:1.85;color:var(--cp-heading)}.inline-fill-blank>*{margin-top:0;margin-bottom:0}.inline-fill-blank>br{display:block;margin-bottom:16px}.inline-fill-blank>:is(p,div,table,ul,ol,blockquote)+:is(p,div,table,ul,ol,blockquote){margin-top:12px}.inline-fill-blank>:is(p,div,li):not(:has(.inline-fill-blank__slot))+:is(p,div,li):has(.inline-fill-blank__slot){margin-top:6px}.inline-fill-blank>:is(p,div,li):has(.inline-fill-blank__slot)+:is(p,div,li):not(:has(.inline-fill-blank__slot)),.inline-fill-blank>:is(p,div,li):has(.inline-fill-blank__slot)+:is(p,div,li):has(.inline-fill-blank__slot){margin-top:18px}.inline-fill-blank__slot{display:inline-flex;align-items:center;vertical-align:baseline;flex-wrap:nowrap;white-space:nowrap;max-width:100%;margin:4px}.inline-fill-blank__input{width:auto;min-width:10ch;max-width:min(100%,22ch);display:inline-block;padding:8px 12px;border-radius:12px;border:1px solid rgba(0,172,193,.34);background:#f7fdfff5;font-weight:700;color:var(--cp-heading);box-shadow:inset 0 1px #ffffffb3}.inline-fill-blank__slot.is-readonly .inline-fill-blank__input{cursor:default;background:#f1f5f9eb;border-color:#94a3b861}.inline-fill-blank__input::placeholder{color:#0b1f2b6b;font-weight:600}.inline-fill-blank table{width:100%}.inline-fill-blank td,.inline-fill-blank th{vertical-align:middle}.blank-grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.blank-field{gap:10px;padding:14px;border-radius:18px;background:#e0f7fa85;border:1px solid rgba(0,172,193,.15)}.blank-field span{color:var(--cp-heading);font-weight:700}.blank-field small{color:var(--cp-muted)}.status{padding:13px 15px;border-radius:16px;background:#e0f7fac7;color:#0b7285;border:1px solid rgba(0,172,193,.18)}.status.error{color:#b42318;background:#fee4e2e0;border-color:#f0443829}.status.success{color:#166534;background:#dcfce7e0;border-color:#22c55e29}.status-with-action{display:flex;justify-content:space-between;align-items:center;gap:12px}.feedback{display:grid;gap:12px}.feedback-item{border-radius:18px;background:#ffffffdb;border:1px solid rgba(255,255,255,.78);padding:16px}.attempt-feedback{display:grid;gap:12px;margin-top:10px}.feedback-scorebar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.feedback-message{margin:0;color:var(--cp-heading);line-height:1.7}.feedback-panel{display:grid;gap:10px;padding:14px 16px;border-radius:16px;background:#f5fbfcf0;border:1px solid rgba(0,172,193,.12)}.feedback-panel-emphasis{background:#e0f7fac7;border-color:#00acc12e}.feedback-panel-scoremap{gap:14px;padding:20px;background:radial-gradient(circle at top right,rgba(255,255,255,.62) 0%,transparent 34%),linear-gradient(180deg,#effcfff5,#e6f7faf0);border-color:#0097a72e;box-shadow:0 16px 36px #0097a714}.feedback-panel-title{color:var(--cp-heading);font-weight:700}.feedback-panel-content>*:first-child{margin-top:0}.feedback-panel-content>*:last-child{margin-bottom:0}.feedback-list{margin:0;padding-left:18px;display:grid;gap:8px;line-height:1.65}.feedback-list-compact{gap:6px}.feedback-chip-row{display:flex;gap:8px;flex-wrap:wrap}.feedback-chip{display:inline-flex;align-items:center;padding:5px 10px;border-radius:999px;background:#00acc11a;color:var(--cp-heading);font-size:12px;font-weight:700}.feedback-chip-status{border:1px solid transparent;box-shadow:inset 0 1px #ffffff80}.feedback-chip-status.is-matched{background:#dcfce7f5;color:#166534;border-color:#22c55e38}.feedback-chip-status.is-partial{background:#fff7edfa;color:#b45309;border-color:#f9731633}.feedback-chip-status.is-missed{background:#fff3e0fa;color:#c2410c;border-color:#ea580c33}.feedback-table-wrap{overflow-x:auto}.feedback-dimension-grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.feedback-dimension-card{display:grid;gap:10px;padding:18px 18px 16px;border-radius:18px;border:1px solid rgba(0,172,193,.12);border-left-width:4px;background:#ffffffd6;box-shadow:0 10px 24px #0097a714;transition:transform .2s ease,box-shadow .2s ease}.feedback-dimension-card:hover{transform:translateY(-2px);box-shadow:0 16px 30px #0097a71f}.feedback-dimension-card.is-matched{background:linear-gradient(180deg,#f0fdf4fa,#dcfce7db);border-color:#22c55e38;border-left-color:#22c55eb8}.feedback-dimension-card.is-partial{background:linear-gradient(180deg,#fffbebfa,#ffedd5e6);border-color:#f973162e;border-left-color:#f59e0bb8}.feedback-dimension-card.is-missed{background:linear-gradient(180deg,#fff7edfa,#fef3c7e0);border-color:#ea580c2e;border-left-color:#ea580cad}.feedback-dimension-head{display:grid;gap:8px}.feedback-dimension-title{color:var(--cp-heading);font-size:1.08rem;line-height:1.55}.feedback-dimension-title-note{margin:0;color:#6b7280;font-size:.84rem;line-height:1.45;font-weight:600}.feedback-dimension-title-detail{margin:0;color:var(--cp-muted);font-size:.92rem;line-height:1.6}.feedback-dimension-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.feedback-dimension-score{color:var(--cp-heading);font-size:20px;font-weight:800}.feedback-dimension-evidence{display:grid;gap:8px;padding-top:10px;border-top:1px dashed rgba(0,151,167,.16)}.feedback-dimension-evidence-head{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}.feedback-dimension-evidence-label{color:var(--cp-muted);font-size:12px;font-weight:700;letter-spacing:.03em}.feedback-chip-evidence.is-rule{background:#e0f7fafa;color:#0f766e;border:1px solid rgba(13,148,136,.18)}.feedback-chip-evidence.is-ai{background:#eff6fffa;color:#2563eb;border:1px solid rgba(59,130,246,.18)}.feedback-chip-evidence.is-summary{background:#fffbebfa;color:#b45309;border:1px solid rgba(245,158,11,.18)}.feedback-chip-evidence.is-neutral{background:#f1f5f9fa;color:#475569;border:1px solid rgba(148,163,184,.18)}.feedback-muted{margin:0;color:var(--cp-muted);font-size:13px}.feedback-item details{margin-top:10px}.feedback-item summary{cursor:pointer;color:var(--cp-heading);font-weight:600}.panel table,.answer-block table,.feedback-item table{width:100%;border-collapse:collapse;display:block;overflow-x:auto}.panel th,.panel td,.answer-block th,.answer-block td,.feedback-item th,.feedback-item td{padding:10px 12px;border:1px solid rgba(0,172,193,.12);text-align:left}.panel th,.answer-block th,.feedback-item th{background:#e0f7fa75;color:var(--cp-heading)}.auth-card{max-width:540px;margin:0 auto}.history-list{display:grid;gap:10px}.history-item{display:grid;gap:8px;cursor:default;padding:12px 14px}.history-item-head{display:flex;justify-content:space-between;align-items:center;gap:10px}.history-item-copy{display:grid;gap:2px}.history-paper-title{font-size:12px;font-weight:700;letter-spacing:.04em;color:var(--cp-muted);line-height:1.25}.history-item-title{color:var(--cp-heading);font-size:18px;line-height:1.2}.history-item-copy .meta{display:flex;align-items:center;gap:10px;margin-top:2px;font-size:12px;color:var(--cp-muted);line-height:1.2}.history-summary-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:8px}.history-summary-item{display:grid;gap:4px;padding:10px 12px;border-radius:12px;background:#f5fbfceb;border:1px solid rgba(0,172,193,.1)}.history-summary-item span{font-size:12px;color:var(--cp-muted)}.history-summary-item strong{color:var(--cp-heading);font-size:14px}.history-score-value{font-size:24px;font-weight:900;letter-spacing:.01em;line-height:1.1}.history-pagination{margin-top:12px;display:flex;align-items:center;justify-content:flex-end;gap:10px}.history-pagination-status{font-size:12px;color:var(--cp-muted)}.history-detail-summary{margin-bottom:4px}.history-question-block{padding:14px 16px;border-radius:14px;border:1px solid rgba(0,172,193,.18);background:linear-gradient(180deg,#f6fcfdf2,#f0f9fbe6);gap:12px}.history-question-head{display:flex;align-items:center;justify-content:space-between}@media(max-width:720px){.history-item-head{flex-direction:column;align-items:stretch}.history-item-title{font-size:17px}.history-item-copy .meta{flex-wrap:wrap;gap:6px}.history-pagination{justify-content:center}}.code-view{margin:0;padding:14px;border-radius:14px;background:#f5fbfc;border:1px solid rgba(0,172,193,.12);white-space:pre-wrap;word-break:break-word}.answer-content-view{font-size:16px;line-height:1.8}.overlay{position:fixed;inset:0;background:#0f172a6b;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);display:grid;place-items:center;padding:20px;z-index:50}.auth-global-overlay{z-index:120}.auth-global-loading{width:min(420px,100%);display:grid;gap:12px;place-items:center;text-align:center;padding:28px 24px}.auth-global-loading strong,.auth-global-loading p{margin:0}.auth-global-loading-spinner{width:46px;height:46px;border-radius:50%;border:3px solid rgba(0,172,193,.16);border-top-color:var(--cp-primary);animation:recharge-spin .88s linear infinite}.modal-card{width:min(760px,100%);max-height:min(80vh,860px);overflow:auto;border-radius:24px;background:var(--cp-surface-strong);border:1px solid var(--cp-border);box-shadow:0 28px 70px #00000029;padding:24px}.confirm-modal{width:min(520px,100%)}.confirm-modal-title{margin:0}.confirm-modal-message{margin-top:16px;white-space:pre-wrap}.confirm-modal-actions{margin-top:24px}.scoring-overlay{z-index:80}.scoring-overlay-card{width:min(760px,100%);padding:44px 36px;display:grid;gap:24px;justify-items:center;text-align:center;background:radial-gradient(circle at top,#e0f7faf5,#fffffffa 52%),#fffffffa}.scoring-overlay-spinner{width:72px;height:72px;border-radius:50%;border:6px solid rgba(0,172,193,.14);border-top-color:var(--cp-primary);border-right-color:var(--cp-primary-deep);animation:recharge-spin .9s linear infinite;box-shadow:0 0 0 18px #e0f7fae0}.scoring-overlay-copy{display:grid;gap:14px;max-width:560px}.scoring-overlay-copy h2,.scoring-overlay-copy p{margin:0}.scoring-overlay-copy h2{font-size:clamp(2rem,5vw,2.8rem);color:var(--cp-heading);line-height:1.2}.scoring-overlay-copy p{color:var(--cp-text);font-size:1.08rem;line-height:1.8}.scoring-overlay-pill{justify-self:center;display:inline-flex;align-items:center;padding:7px 14px;border-radius:999px;background:#00acc11f;color:var(--cp-heading);font-size:.95rem;font-weight:700;letter-spacing:.04em}.scoring-overlay-hint{color:var(--cp-muted)}.confirm-modal-trial{width:min(640px,100%);max-height:min(82vh,860px);padding:30px 34px 28px;text-align:center;position:relative;display:grid;gap:18px}.confirm-modal-close{position:absolute;top:18px;right:18px;width:40px;height:40px;border:none;border-radius:999px;background:transparent;color:#9ca3af;font-size:34px;line-height:1;cursor:pointer;transition:background-color .2s ease,color .2s ease}.confirm-modal-close:hover:not(:disabled){background:#94a3b81f;color:var(--cp-heading)}.confirm-modal-close:disabled{cursor:not-allowed;opacity:.6}.confirm-modal-icon{width:88px;height:88px;margin:0 auto;border-radius:50%;background:#fff8e8;display:flex;align-items:center;justify-content:center}.confirm-modal-icon-mark{width:0;height:0;border-left:18px solid transparent;border-right:18px solid transparent;border-bottom:34px solid #f59e0b;position:relative;transform:translateY(-2px)}.confirm-modal-icon-mark:after{content:"!";position:absolute;left:-4px;top:11px;color:#fff;font-size:18px;font-weight:800;line-height:1}.confirm-modal-content{display:grid;gap:12px}.confirm-modal-message-trial{display:grid;gap:8px;margin-top:0;color:#52637d;font-size:1.05rem}.confirm-modal-line{margin:0;line-height:1.6}.confirm-modal-line-secondary{color:var(--cp-muted);font-size:.96rem}.confirm-modal-line-highlight{color:var(--cp-heading);font-size:1.14rem;font-weight:700}.confirm-modal-actions-trial{justify-content:center;margin-top:0}.confirm-modal-actions-trial>button{min-width:148px}.confirm-modal-trial .primary{box-shadow:0 12px 28px #00acc138}.modal-header{display:flex;justify-content:space-between;align-items:center;gap:14px}.recharge-modal{width:min(720px,100%);max-height:min(86vh,900px);padding:0;overflow:hidden;display:grid;grid-template-rows:auto auto minmax(0,1fr) auto}.recharge-modal-header{align-items:flex-start;padding:24px 24px 0}.recharge-modal-header>button{flex-shrink:0}.recharge-modal-title{gap:12px}.recharge-modal-title h2{margin:0}.recharge-divider{margin:18px 24px 0}.recharge-modal-body{padding:20px 24px;overflow-y:auto;min-height:0}.recharge-modal-content{display:grid;gap:14px}.recharge-loading-state{min-height:280px;display:grid;place-items:center;gap:12px;text-align:center;padding:12px 0}.recharge-loading-state p,.recharge-loading-state strong{margin:0}.recharge-loading-spinner{width:44px;height:44px;border-radius:50%;border:3px solid rgba(0,172,193,.16);border-top-color:var(--cp-primary);animation:recharge-spin .88s linear infinite}.recharge-balance-card{display:grid;gap:6px;padding:11px 14px;border-radius:14px;background:linear-gradient(180deg,#e0f7faf0,#fffffffa);border:1px solid rgba(0,172,193,.16);box-shadow:0 8px 18px #00acc10f}.recharge-balance-label{font-size:12px;color:var(--cp-muted);letter-spacing:.06em}.recharge-balance-main{display:flex;justify-content:flex-start;align-items:flex-end;gap:6px;flex-wrap:wrap}.recharge-balance-value{font-size:26px;line-height:1;color:var(--cp-heading)}.recharge-balance-card p{margin:0;font-size:12px;line-height:1.35}.recharge-goods-grid{display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(156px,1fr))}.recharge-goods-card{border:1px solid rgba(0,172,193,.14);border-radius:16px;background:#fffffff0;padding:14px;text-align:left;cursor:pointer;display:grid;gap:10px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;box-shadow:0 10px 24px #0000000d}.recharge-goods-card:hover{transform:translateY(-2px);border-color:#00acc152;box-shadow:0 14px 28px #00acc11a}.recharge-goods-card.active{border-color:#00acc185;box-shadow:0 0 0 1px #00acc13d,0 14px 28px #00acc124;background:#f0fdfff5}.recharge-goods-card:disabled,.recharge-submit:disabled,.recharge-modal-header>button:disabled{cursor:not-allowed;opacity:.62;transform:none;box-shadow:none}.recharge-goods-card:disabled:hover,.recharge-submit:disabled:hover,.recharge-modal-header>button:disabled:hover{transform:none}.recharge-goods-top{display:flex;justify-content:space-between;gap:10px;align-items:flex-start}.recharge-goods-price{font-size:26px;line-height:1.1;color:var(--cp-heading);font-weight:700}.recharge-goods-meta{display:flex;gap:8px;flex-wrap:wrap;color:var(--cp-muted);font-size:12px}.recharge-pay-stage{min-height:320px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;text-align:center}.recharge-order-badge{font-size:13px}.recharge-pay-summary{display:flex;gap:10px;flex-wrap:wrap;align-items:center;justify-content:center}.recharge-pay-summary strong{color:var(--cp-heading);font-size:20px}.recharge-pay-image{width:min(240px,100%);border-radius:18px;border:1px solid rgba(0,172,193,.14);background:#fff;padding:12px;box-shadow:0 16px 32px #0000000f}.recharge-pay-link{display:inline-flex;align-items:center;justify-content:center}.recharge-pay-code,.recharge-pay-placeholder{width:min(520px,100%)}.recharge-pay-placeholder{text-align:left}.recharge-pay-placeholder p{margin-bottom:0}.recharge-pay-hint{margin:0;max-width:520px}.recharge-modal-footer{padding:0 24px 24px;display:grid;gap:14px}.recharge-status{margin:0}.recharge-status:empty{display:none}.recharge-submit{width:100%;display:inline-flex;align-items:center;justify-content:center}.recharge-modal-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.divider{height:1px;border:0;background:#00acc11f;margin:18px 0}@keyframes recharge-spin{to{transform:rotate(360deg)}}@media(max-width:1080px){.answer-layout{grid-template-columns:1fr}.answer-side,.sidebar-card{position:static}.answer-side{width:auto}.answer-side .panel{position:static}.answer-stem-head{padding-bottom:12px}}@media(max-width:960px){.grid.two,.hero-stats,.features-grid{grid-template-columns:1fr}.header-container{align-items:flex-start;flex-direction:column}.nav{justify-content:flex-start}.hero,.panel,.landing-section{padding:22px}.scenario-row,.paper-head{flex-direction:column;align-items:stretch}.ellipsis-title{max-width:100%}.dashboard-layout,.dashboard-main-scroll,.dashboard-grid .sidebar-card.dashboard-sidebar{min-height:auto;max-height:none;overflow:visible}.answer-overview-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:720px){.header-container,.page-container,.footer-container{width:min(100vw - 24px,1240px)}.main-content{padding-top:20px}.hero-title{font-size:2.2rem}.main-footer{padding:40px 0 30px}.footer-shell{gap:18px;padding:22px 8px 0}.footer-nav{gap:12px 28px}.footer-nav-item{font-size:.96rem}.footer-legal{flex-direction:column;gap:8px;font-size:.92rem;line-height:1.6}.footer-legal-item{justify-content:center;flex-wrap:wrap}.footer-legal-item+.footer-legal-item:before{content:none;margin:0}.answer-hero-title{font-size:1.82rem}.answer-hero-subtitle{font-size:.94rem}.answer-hero-header{gap:10px}.answer-overview-grid,.answer-side-actions{grid-template-columns:1fr}.answer-hero-panel,.answer-stem-panel,.answer-side-panel,.answer-overview-card,.answer-side-summary-card,.answer-block{padding-left:16px;padding-right:16px}.hero-actions,.actions,.status-with-action{flex-direction:column;align-items:stretch}.recharge-modal-header,.recharge-modal-body,.recharge-modal-footer{padding-left:18px;padding-right:18px}.recharge-divider{margin-left:18px;margin-right:18px}.recharge-balance-main,.recharge-goods-top{flex-direction:column;align-items:flex-start}.recharge-modal-actions{grid-template-columns:1fr}.recharge-goods-price{font-size:26px}.recharge-pay-stage{min-height:260px}.landing-btn{width:100%}.nav-user-menu{width:fit-content;max-width:100%}.nav-user-trigger{width:auto;min-width:0;max-width:min(148px,100%)}.nav-user-dropdown{position:static;margin-top:8px;min-width:0}.confirm-modal-trial{padding:24px 18px 22px;gap:16px}.confirm-modal-message-trial{font-size:.98rem}.confirm-modal-line-highlight{font-size:1.04rem}.confirm-modal-actions-trial>button{width:100%;min-width:0}.inline-fill-blank__slot{display:inline-flex;width:auto;margin:4px}.inline-fill-blank__input{width:auto;min-width:8ch;max-width:min(100%,20ch)}}
