:root{--paper:#FFFFFF;--surface:#FFFFFF;--wash:#F4F4F4;--ink:#0B0B0B;--ink-2:#5A5A5A;--ink-3:#8E8E8E;--rule:#E3E3E3;--rule-bold:#0B0B0B;--orange:#FF4B12;--orange-ink:#C93400;--orange-wash:#FFEDE6;--blue:#1B4DFF;--blue-ink:#0B3FD9;--blue-wash:#E8EDFF;--display:"Archivo","Helvetica Neue",Arial,sans-serif;--body:"Noto Sans JP","Hiragino Sans","Yu Gothic",system-ui,sans-serif;color-scheme:light}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--paper);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}:focus-visible{outline:3px solid var(--blue);outline-offset:2px}.wrap{max-width:68rem;margin-inline:auto;padding-inline:max(20px,4vw)}.eyebrow,.footer-credit,.mock-bar,.review-meta,.row-side .n,.scorebox .k,.site-header .brand-credit,.stat dt,thead th{font-family:var(--display);font-weight:600;font-size:.6875rem;letter-spacing:.14em;text-transform:uppercase;line-height:1.4}.big,.num,.scorebox .v,.stat dd .figure{font-family:var(--display);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1,"tnum"}.site-header{background:var(--paper);border-bottom:2px solid var(--rule-bold);position:-webkit-sticky;position:sticky;top:0;z-index:20}.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:14px}.brand{display:block;min-width:0}.brand-name{display:block;font-weight:900;font-size:1.25rem;letter-spacing:-.02em;line-height:1.2}.brand-name em{font-family:var(--display);font-style:normal;font-weight:900;letter-spacing:0}.brand-credit{display:block;color:var(--ink-3);margin-top:2px;font-size:.625rem}.btn{display:inline-block;background:var(--ink);color:var(--paper);border:2px solid var(--ink);border-radius:999px;padding:13px 30px;font-family:var(--body);font-weight:900;font-size:.9375rem;line-height:1.2;cursor:pointer;text-align:center}.btn:hover{background:var(--orange);border-color:var(--orange);color:#fff}.btn:disabled{opacity:.35;cursor:not-allowed}.btn:disabled:hover{background:var(--ink);border-color:var(--ink)}.btn-sm{padding:9px 20px;font-size:.8125rem;white-space:nowrap}.btn-ghost{background:transparent;color:var(--ink)}.btn-ghost:hover{background:var(--ink);border-color:var(--ink);color:var(--paper)}.notice{border-left:5px solid var(--orange);background:var(--orange-wash);color:var(--ink);padding:14px 18px;font-size:.875rem;line-height:1.7;margin-bottom:30px}.hero{padding-block:clamp(44px,9vw,96px) 12px}.hero h1{font-weight:900;font-size:clamp(2rem,7vw,4.25rem);line-height:1.12;letter-spacing:-.035em;margin:0 0 20px;max-width:16em;text-wrap:balance}.hero p{color:var(--ink-2);margin:0 0 32px;max-width:32rem;font-size:1.0625rem}.search{display:flex;gap:12px;max-width:40rem;flex-wrap:wrap;align-items:stretch}.search input{flex:1 1 18rem;min-width:0;font-family:var(--body);font-size:1.0625rem;font-weight:700;padding:12px 2px;border:none;border-bottom:3px solid var(--ink);border-radius:0;background:transparent;color:var(--ink)}.search input::placeholder{color:var(--ink-3);font-weight:400}.search input:focus-visible{outline:none;border-bottom-color:var(--orange)}section{padding-block:clamp(36px,6vw,60px)}h2{font-weight:900;font-size:clamp(1.25rem,3vw,1.75rem);letter-spacing:-.02em;margin:0 0 2px}.sub{color:var(--ink-3);font-size:.8125rem;margin:0 0 4px}.rows{display:block;border-top:2px solid var(--rule-bold)}.row{display:grid;grid-template-columns:210px minmax(0,1fr) auto;grid-gap:18px;gap:18px;align-items:center;padding:20px 0;border-bottom:1px solid var(--rule)}.row:hover .row-name{color:var(--orange-ink)}.row-main{min-width:0}.row-name{font-weight:900;font-size:1.125rem;letter-spacing:-.015em;line-height:1.35}.row-meta{color:var(--ink-3);font-size:.8125rem;line-height:1.5}.row-side{text-align:right;white-space:nowrap;display:grid;grid-gap:6px;gap:6px;justify-items:end}.row-side .n{color:var(--ink-3)}.scorebox{text-align:left;line-height:1}.scorebox .v{display:block;font-size:2.25rem;font-weight:900;letter-spacing:-.045em}.scorebox .k{display:block;color:var(--ink-3);margin-top:5px}.tone-good .v{color:var(--blue-ink)}.tone-mid .v{color:var(--ink)}.tone-bad .v{color:var(--orange-ink)}.tone-none .v{color:var(--ink-3)}.pill{display:inline-block;font-family:var(--display);font-weight:800;font-size:.6875rem;letter-spacing:.1em;text-transform:uppercase;padding:6px 13px;border-radius:999px;border:2px solid var(--rule);color:var(--ink-2);white-space:nowrap;line-height:1.2}.pill-good{background:var(--blue);border-color:var(--blue);color:#fff}.pill-mid{background:transparent;border-color:var(--ink);color:var(--ink)}.pill-bad{background:var(--orange);border-color:var(--orange);color:#fff}.prof-head{border-top:2px solid var(--rule-bold);border-bottom:1px solid var(--rule);padding-block:clamp(26px,4vw,40px);display:grid;grid-gap:26px;gap:26px;margin-bottom:0}@media (min-width:720px){.prof-head{grid-template-columns:minmax(0,1fr) 260px;align-items:start}}.prof-hero-score{order:-1}@media (min-width:720px){.prof-hero-score{order:1;text-align:right}}.prof-hero-score .big{display:block;font-size:clamp(4.5rem,14vw,7.5rem);font-weight:900;line-height:.85;letter-spacing:-.055em;color:var(--ink)}.prof-hero-score .of{display:block;font-family:var(--display);font-weight:600;font-size:.6875rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);margin-top:12px}.prof-name{font-weight:900;font-size:clamp(1.75rem,5vw,2.75rem);letter-spacing:-.035em;line-height:1.1;margin:0 0 6px}.prof-dept{color:var(--ink-3);font-size:.875rem;margin:0 0 22px}.pills{display:flex;flex-wrap:wrap;gap:9px}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));grid-gap:0;gap:0;border-top:2px solid var(--rule-bold);margin:0 0 12px}.stat{padding:18px 20px 18px 0;border-bottom:1px solid var(--rule)}.stat dt{color:var(--ink-3);margin:0 0 6px}.stat dd{margin:0;font-weight:900;font-size:1.0625rem;letter-spacing:-.01em;line-height:1.4}.review{display:grid;grid-gap:16px;gap:16px;padding:24px 0;border-bottom:1px solid var(--rule)}@media (min-width:640px){.review{grid-template-columns:150px minmax(0,1fr)}}.review-scores{display:grid;grid-template-columns:1fr 1fr;grid-gap:14px;gap:14px;align-content:start}.review-scores .scorebox .v{font-size:1.625rem}.review-body p{margin:0 0 12px;font-size:1rem;line-height:1.85}.review-meta{display:flex;flex-wrap:wrap;gap:6px 16px;color:var(--ink-3)}.scroll{overflow-x:auto}table{border-collapse:collapse;width:100%;min-width:44rem;font-size:.9375rem}thead th{color:var(--ink-3);text-align:left;padding:0 18px 10px 0;border-bottom:2px solid var(--rule-bold);white-space:nowrap}td{padding:18px 18px 18px 0;border-bottom:1px solid var(--rule);vertical-align:middle}td.num{font-weight:900;font-size:1.125rem;letter-spacing:-.02em}tbody tr:hover td{background:var(--wash)}tbody a{font-weight:900}tbody a:hover{color:var(--orange-ink)}.form{max-width:42rem}.fieldset{border:none;padding:0;margin:0 0 44px}.fieldset legend{font-weight:900;font-size:1.375rem;letter-spacing:-.025em;padding:0;margin-bottom:4px}.fieldset .hint{color:var(--ink-3);font-size:.875rem;margin:0 0 22px}.field{margin-bottom:30px}.field .q,.field>label{display:block;font-weight:900;font-size:1rem;letter-spacing:-.01em;margin-bottom:12px}.field .note{color:var(--ink-3);font-weight:400;font-size:.8125rem}.choices{display:flex;flex-wrap:wrap;gap:10px}.choice{position:relative;display:inline-flex}.choice input{position:absolute;inset:0;opacity:0;width:100%;height:100%;margin:0;cursor:pointer}.choice span{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:10px 20px;border:2px solid var(--rule);border-radius:999px;background:transparent;font-size:.9375rem;font-weight:700;cursor:pointer;white-space:nowrap;line-height:1.2}.choice input:checked+span{border-color:var(--ink);background:var(--ink);color:var(--paper);font-weight:900}.choice input:focus-visible+span{outline:3px solid var(--blue);outline-offset:2px}.field .choices .choice input[type=radio][id*=easiness]+span,.field .choices .choice input[type=radio][id*=listening]+span,.field .choices .choice input[type=radio][id*=overall]+span{min-width:58px;padding-inline:0;font-family:var(--display);font-size:1.125rem;font-weight:800}.scale-label{color:var(--ink-3);font-size:.8125rem}select,textarea{font-family:var(--body);font-size:1rem;font-weight:700;width:100%;padding:13px 2px;border:none;border-bottom:3px solid var(--ink);border-radius:0;background:transparent;color:var(--ink)}select:focus-visible,textarea:focus-visible{outline:none;border-bottom-color:var(--orange)}textarea{resize:vertical;min-height:130px;line-height:1.85;font-weight:400;border:2px solid var(--rule);padding:14px 16px}textarea:focus-visible{border-color:var(--ink)}.counter{text-align:right;font-size:.75rem;color:var(--ink-3);margin-top:6px}.guideline{border-left:5px solid var(--blue);background:var(--blue-wash);padding:16px 20px;font-size:.875rem;line-height:1.8;margin-bottom:26px}.form-error{background:var(--orange);color:#fff;padding:14px 20px;font-size:.9375rem;font-weight:700;margin-bottom:22px}.empty{border:2px dashed var(--rule);padding:44px 24px;text-align:center;color:var(--ink-3);font-size:.9375rem;line-height:1.8}.crumb{padding-top:26px}.back{display:inline-flex;align-items:center;gap:10px;padding:11px 22px 11px 18px;border:2px solid var(--ink);border-radius:999px;font-weight:900;font-size:.9375rem;line-height:1.2;color:var(--ink)}.back span{font-family:var(--display);font-size:1.125rem;line-height:1;transform:translateY(-1px)}.back:hover{background:var(--ink);border-color:var(--ink);color:var(--paper);text-decoration:none}.mock-bar{color:var(--ink-3);padding-bottom:12px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}.site-footer{border-top:2px solid var(--rule-bold);margin-top:60px;padding-block:30px 56px;color:var(--ink-3);font-size:.8125rem;line-height:1.8}.site-footer p{margin:0 0 10px;max-width:46rem}@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}.combo{position:relative}.combo-input{font-family:var(--body);font-size:1rem;font-weight:700;width:100%;padding:13px 2px;border:none;border-bottom:3px solid var(--ink);border-radius:0;background:transparent;color:var(--ink)}.combo-input::placeholder{color:var(--ink-3);font-weight:400}.combo-input:focus-visible{outline:none;border-bottom-color:var(--orange)}.combo-input:disabled{border-bottom-color:var(--rule);color:var(--ink-3)}.combo-list{position:absolute;z-index:30;left:0;right:0;margin:0;padding:0;list-style:none;max-height:19rem;overflow-y:auto;background:var(--surface);border:2px solid var(--ink);border-top:none}.combo-option{display:block;width:100%;text-align:left;border:none;background:transparent;font:inherit;padding:11px 16px;cursor:pointer;border-bottom:1px solid var(--rule)}.combo-list li:last-child .combo-option{border-bottom:none}.combo-option.is-active{background:var(--ink);color:var(--paper)}.combo-option-main{display:block;font-weight:900;font-size:.9375rem;line-height:1.4}.combo-option-sub{display:block;font-size:.75rem;color:var(--ink-3);line-height:1.5}.combo-option.is-active .combo-option-sub{color:rgba(255,255,255,.72)}.combo-none{padding:16px;color:var(--ink-3);font-size:.875rem;line-height:1.7}.combo-selected{display:flex;align-items:baseline;flex-wrap:wrap;gap:4px 12px;padding:11px 0;border-bottom:3px solid var(--ink)}.combo-selected-main{font-weight:900;font-size:1.0625rem;letter-spacing:-.015em}.combo-selected-sub{color:var(--ink-3);font-size:.8125rem}.combo-clear{margin-left:auto;border:2px solid var(--rule);background:transparent;border-radius:999px;padding:4px 14px;font-family:var(--display);font-weight:800;font-size:.6875rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2);cursor:pointer}.combo-clear:hover{border-color:var(--ink);color:var(--ink)}.review-date{font-family:var(--display);font-weight:600;font-size:.6875rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);margin:0 0 8px}.row-scores{display:grid;grid-template-columns:1fr 1fr;grid-gap:16px;gap:16px}.row-scores .scorebox .v{font-size:1.875rem}.row-scores .scorebox .k{letter-spacing:.02em;white-space:nowrap}.row-count{font-weight:900;font-size:1.0625rem;letter-spacing:-.01em;color:var(--ink)}@media (max-width:640px){.row{grid-template-columns:1fr auto;row-gap:14px}.row-scores{grid-column:1/-1;order:2;max-width:14rem}.row-main{order:1}.row-side{order:1;align-self:start}}.footer-meta{display:grid;grid-template-columns:auto 1fr;grid-gap:6px 20px;gap:6px 20px;margin:0 0 22px;align-items:baseline}.footer-meta dt{font-family:var(--display);font-weight:600;font-size:.6875rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);white-space:nowrap}.footer-meta dd{margin:0;font-weight:900;font-size:.9375rem;color:var(--ink)}.footer-meta a{border-bottom:2px solid var(--orange);padding-bottom:1px}.footer-meta a:hover{color:var(--orange-ink);text-decoration:none}.form-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}.review-answers{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));grid-gap:14px 20px;gap:14px 20px;margin:18px 0 0;padding-top:16px;border-top:1px solid var(--rule)}.review-answers dt{font-family:var(--display);font-weight:600;font-size:.625rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3);margin-bottom:3px}.review-answers dd{margin:0;font-weight:700;font-size:.875rem;line-height:1.5}.row-course{grid-template-columns:minmax(0,1fr)}.section-head{justify-content:space-between;align-items:flex-end;gap:14px 24px;margin-bottom:16px}.section-head,.sorts{display:flex;flex-wrap:wrap}.sorts{gap:8px}.sort{border:2px solid var(--rule);background:transparent;border-radius:999px;padding:7px 16px;font-family:var(--body);font-weight:700;font-size:.8125rem;color:var(--ink-2);cursor:pointer;line-height:1.2}.sort:hover{border-color:var(--ink);color:var(--ink)}.sort.is-on{background:var(--ink);border-color:var(--ink);color:var(--paper);font-weight:900}.review-scores .scorebox .k{letter-spacing:.02em;white-space:nowrap}.cta{border-top:2px solid var(--rule-bold);border-bottom:2px solid var(--rule-bold);padding-block:clamp(32px,5vw,48px);margin-top:clamp(28px,5vw,44px)}.cta-lead{font-weight:900;font-size:clamp(1.25rem,3.4vw,1.875rem);letter-spacing:-.03em;line-height:1.4;margin:0 0 16px;max-width:24em;text-wrap:balance}.cta-body{color:var(--ink-2);margin:0 0 14px;max-width:34rem;line-height:1.9}.cta-meta{font-family:var(--display);font-weight:600;font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin:0 0 24px}.header-cta{display:flex;align-items:center;gap:16px}.header-nudge{display:grid;grid-gap:1px;gap:1px;text-align:right;font-family:var(--display);font-size:.625rem;font-weight:600;letter-spacing:.12em;line-height:1.5;color:var(--ink-3);white-space:nowrap}.header-nudge b{font-weight:800;color:var(--orange-ink);letter-spacing:.08em}@media (max-width:680px){.header-nudge{display:none}}.login{padding-block:clamp(44px,9vw,96px) 24px;max-width:36rem}.login h1{font-weight:900;font-size:clamp(1.75rem,5.5vw,2.75rem);letter-spacing:-.04em;line-height:1.25;margin:0 0 18px}.login-body{color:var(--ink-2);line-height:1.9;margin:0 0 28px}.btn-google{display:inline-flex;align-items:center;gap:12px}.btn-google svg{background:#fff;border-radius:50%;padding:2px;box-sizing:content-box}.login-steps{margin:36px 0 0;padding:0;list-style:none;counter-reset:step;border-top:2px solid var(--rule-bold)}.login-steps li{counter-increment:step;position:relative;padding:16px 0 16px 44px;border-bottom:1px solid var(--rule);font-size:.9375rem;line-height:1.8}.login-steps li:before{content:counter(step);position:absolute;left:0;top:14px;font-family:var(--display);font-weight:900;font-size:1.5rem;line-height:1.2}.login-note{color:var(--ink-3);font-size:.8125rem;line-height:1.8;margin-top:18px}.account{display:flex;align-items:center;gap:12px}.account form{margin:0}.account-link{background:none;border:none;padding:0;font:inherit;font-size:.75rem;font-weight:700;color:var(--ink-3);cursor:pointer;white-space:nowrap}.account-link:hover{color:var(--orange-ink)}.unlock{border:2px solid var(--ink);padding:clamp(20px,4vw,30px);margin-bottom:30px}.unlock-lead{font-weight:900;font-size:clamp(1.0625rem,2.6vw,1.375rem);letter-spacing:-.02em;line-height:1.5;margin:0 0 18px;text-wrap:balance}.unlock-steps{display:flex;gap:10px;list-style:none;padding:0;margin:0 0 18px}.unlock-steps li{min-width:64px;padding:8px 12px;border:2px solid var(--rule);border-radius:999px;text-align:center;font-family:var(--display);font-weight:800;font-size:.8125rem;color:var(--ink-3)}.unlock-steps li.is-done{background:var(--blue);border-color:var(--blue);color:#fff}.unlock-steps li.is-pending{border-color:var(--orange);color:var(--orange-ink)}.unlock-body{color:var(--ink-2);font-size:.9375rem;line-height:1.9;margin:0 0 12px;max-width:38rem}.unlock-body b{color:var(--ink)}.unlock-note{display:block;color:var(--ink-3);font-size:.8125rem}.unlock-meta{font-family:var(--display);font-weight:800;font-size:.75rem;letter-spacing:.1em;color:var(--orange-ink);margin:18px 0 14px}.row-locked .row-name{color:var(--ink-2)}.admin-item{border-bottom:1px solid var(--rule);padding:18px 0}.admin-head{display:flex;flex-wrap:wrap;gap:8px 16px;align-items:baseline;margin-bottom:6px}.admin-head b{font-size:1rem}.admin-meta{color:var(--ink-3);font-size:.8125rem}.admin-comment{margin:6px 0 12px;white-space:pre-wrap;font-size:.9375rem}.admin-actions{display:flex;gap:10px}.unlock-until{font-size:.9375rem;line-height:1.8;margin:-8px 0 18px}.unlock-until b{color:var(--blue-ink)}.access-until{font-family:var(--display);font-weight:700;font-size:.75rem;letter-spacing:.08em;color:var(--ink-3);margin:0 0 18px}.article,.privacy{max-width:42rem}.article h1,.privacy h1{font-size:1.5rem;margin:18px 0 4px}.article h2,.privacy h2{font-size:1.0625rem;margin:32px 0 8px}.article li,.article p,.privacy li,.privacy p{font-size:.9375rem;line-height:1.9;color:var(--ink-2)}.article ol,.article ul,.privacy ul{padding-left:1.2em;margin:0 0 8px}.article a,.privacy a{text-decoration:underline}.ad-slot{margin-block:36px;padding-top:12px;border-top:1px solid var(--rule)}.ad-slot .ad-label{display:block;margin-bottom:6px;font-size:11px;color:var(--ink-3)}.rows>.ad-slot{margin-block:0;padding-block:14px;border-top:0;border-bottom:1px solid var(--rule)}.header-nav{display:flex;gap:14px;margin-left:auto;font-size:.8125rem;font-weight:700;white-space:nowrap}.header-nav a:hover{color:var(--orange-ink)}.read-next{max-width:100%}.toc{margin:24px 0 8px;padding:14px 18px;background:var(--wash)}.toc ul{margin:0;padding:0;list-style:none}.toc li{font-size:.875rem;line-height:1.9}.toc a{text-decoration:none}.toc a:hover{color:var(--orange-ink)}.article h2{scroll-margin-top:90px}.article code{font-size:.875em;padding:1px 5px}.article code,.mail{background:var(--wash)}.mail{white-space:pre-wrap;word-break:break-word;font-size:.8125rem;line-height:1.7;border-left:3px solid var(--orange);padding:14px 16px;margin:12px 0 8px}.pairs{width:100%}.pairs td:first-child{font-weight:600}.review-meta a{text-decoration:underline}@media (max-width:680px){.site-header .wrap{flex-wrap:wrap;row-gap:8px}.header-nav{order:3;width:100%;margin-left:0;gap:18px;font-size:.75rem}}.ad-preview{display:grid;place-items:center;height:250px;background:repeating-linear-gradient(45deg,var(--wash),var(--wash) 12px,#EAEAEA 12px,#EAEAEA 24px);color:var(--ink-3);font-size:.8125rem;font-weight:700}@media (max-width:680px){.ad-preview{height:280px}}.row-ranked{grid-template-columns:44px 210px minmax(0,1fr) auto}.row-rank{font-family:var(--display);font-weight:900;font-size:1.5rem;color:var(--ink-3)}.row-ranked:nth-child(-n+3 of .row-ranked) .row-rank{color:var(--orange-ink)}@media (max-width:640px){.row-ranked{grid-template-columns:32px minmax(0,1fr) auto}.row-ranked .row-rank{order:0;font-size:1.25rem}.row-ranked .row-scores{grid-column:2/-1}}