:root{--night-950: #f1f4f9;--night-900: #f5f7fb;--night-800: #e8eef7;--hero-blue: #0a66d8;--hero-blue-soft: #eaf3ff;--hero-red: #d9495b;--hero-red-deep: #b62e43;--cream: #ffffff;--paper: #ffffff;--ink: #1d2433;--ink-muted: #697386;--success: #238468;--success-soft: #e8f7f1;--warning: #0a66d8;--danger-soft: #fff0f2;--page: #f5f7fb;--surface-subtle: #f0f4f9;--line: #dfe5ee;--lake-900: var(--ink);--lake-700: var(--night-800);--lake-500: #64748b;--mint-100: #eef5fb;--mint-200: var(--hero-blue-soft);--saffron: var(--warning);--coral: var(--hero-red);--ink-soft: #778195;--shadow: 0 1px 2px rgba(20, 35, 60, .04), 0 18px 48px rgba(20, 35, 60, .08);--shadow-soft: 0 1px 2px rgba(20, 35, 60, .04), 0 10px 28px rgba(20, 35, 60, .06);--radius-lg: 24px;--radius-md: 17px;--radius-sm: 13px;--safe-bottom: env(safe-area-inset-bottom, 0px);--nav-h: calc(64px + var(--safe-bottom));--font-cn: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Noto Sans SC", sans-serif;--font-en: "Bricolage 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solid rgba(101,117,139,.13);border-radius:var(--radius-lg);box-shadow:var(--shadow)}.btn{min-height:48px;flex-shrink:0;border:none;border-radius:14px;padding:0 20px;display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:650;white-space:nowrap;transition:transform .16s ease,background .16s ease,opacity .16s ease}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:var(--hero-blue);color:#fff;box-shadow:0 8px 20px #0a66d833}.btn-primary:hover:not(:disabled){background:#0758bb}.btn-secondary{background:var(--hero-blue-soft);color:#0758bb}.btn-ghost{background:#f0f3f7;color:var(--ink);border:1px solid rgba(101,117,139,.1)}.btn-danger{background:var(--danger-soft);color:#a82437}.confirm-backdrop{position:fixed;inset:0;z-index:100;padding:16px 16px calc(16px + var(--safe-bottom));display:grid;align-items:end;background:#141f3175;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.confirm-dialog{width:min(460px,100%);margin:0 auto;padding:20px;display:grid;grid-template-columns:44px minmax(0,1fr);gap:14px;border:1px solid rgba(101,117,139,.16);border-radius:24px;background:var(--paper);box-shadow:0 28px 80px #141f313d}.confirm-dialog__icon{width:44px;height:44px;display:grid;place-items:center;border-radius:14px;color:#a82437;background:var(--danger-soft)}.confirm-dialog h2,.confirm-dialog p{margin:0}.confirm-dialog .confirm-dialog__error{margin-top:10px;padding:10px 12px;border-radius:12px;color:#a82437;background:var(--danger-soft)}.confirm-dialog h2{font-size:1.16rem}.confirm-dialog p{margin-top:7px;color:var(--ink-muted);font-size:.88rem;line-height:1.55}.confirm-dialog__actions{grid-column:1 / -1;display:grid;grid-template-columns:1fr 1fr;gap:10px}.field{display:flex;flex-direction:column;gap:8px}.field 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.btn{flex:none}.muted{color:var(--ink-soft)}.surface .muted,.surface .page-sub{color:var(--ink-muted)}.bottom-nav{position:fixed;left:50%;transform:translate(-50%);bottom:0;width:min(720px,100%);display:grid;grid-template-columns:repeat(3,1fr);gap:4px;padding:8px 12px calc(8px + var(--safe-bottom));background:#ffffffeb;-webkit-backdrop-filter:blur(18px) saturate(160%);backdrop-filter:blur(18px) saturate(160%);border-top:1px solid rgba(30,41,59,.08);z-index:40}.bottom-nav a{min-height:48px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;border-radius:14px;color:#7b8494;font-size:.78rem;font-weight:500}.bottom-nav a.active{background:var(--hero-blue-soft);color:#0758bb}.nav-ico{flex:none}.syllable-track{width:fit-content;max-width:100%;display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}button.syllable-track{padding:0;border:0;color:inherit;background:transparent;text-align:left}.syllable-track.is-interactive:hover 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12px;border-radius:999px;background:#edf2f8;color:var(--ink-muted);font-size:.82rem}.checkbox-row.is-disabled{color:var(--ink-soft);cursor:not-allowed;opacity:.62}.word-card{padding:18px;box-shadow:none;border-color:#e3e8ef}.word-card__heading{justify-content:space-between}.word-filters{padding:18px;box-shadow:var(--shadow-soft)}.word-filters label,.word-filters label>span{display:flex;align-items:center;gap:6px}.word-filter-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:14px}.word-filters .field>span,.word-filters .field>label{color:var(--ink-muted);font-size:.78rem;font-weight:650}.word-filter-grid select{min-height:48px;padding:0 12px;border:1px solid var(--line);border-radius:13px;color:var(--ink);background:#f7f9fc}.word-list{display:flex;flex-direction:column;gap:12px}.word-list-item{overflow:hidden;box-shadow:var(--shadow-soft)}.word-list-summary{min-height:76px;padding-right:12px;display:grid;grid-template-columns:minmax(0,1fr) 48px;align-items:center;gap:4px}.word-summary-toggle{min-width:0;min-height:76px;padding:12px 0 12px 16px;display:grid;grid-template-columns:minmax(0,1fr) auto 48px;align-items:center;gap:10px;border:0;color:inherit;background:transparent;text-align:left;border-radius:18px}.word-summary-toggle:hover{background:#f8fafc}.word-list-copy{min-width:0}.word-list-title{display:block;overflow:hidden;font-family:var(--font-en);font-size:1.25rem;line-height:1.2;text-overflow:ellipsis;white-space:nowrap}.word-list-meta{display:block;margin-top:4px;overflow:hidden;color:var(--ink-muted);font-size:.82rem;text-overflow:ellipsis;white-space:nowrap}.word-list-meta b{color:var(--ink);font-weight:650}.status-pill{padding:6px 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#dce4ed;border-radius:var(--radius-md);background:#f8fafc}.word-library-fieldset{margin:0;padding:12px;border:1px solid #dce4ed;border-radius:12px}.word-library-fieldset legend{padding:0 6px;color:var(--ink-muted);font-size:.82rem;font-weight:700}.word-edit-actions .btn{flex:1}.parent-weak-action{width:100%;margin-top:14px}.workflow-steps{margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:8px;list-style:none}.workflow-steps li{min-width:0;display:flex;align-items:center;gap:7px;color:var(--ink-muted);font-size:.76rem}.workflow-steps li>span{width:28px;height:28px;flex:none;display:grid;place-items:center;border:1px solid #cfd7e3;border-radius:999px;font-family:var(--font-en);font-weight:700}.workflow-steps li strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.workflow-steps li.is-active,.workflow-steps li.is-done{color:var(--ink)}.workflow-steps li.is-active>span{border-color:var(--hero-blue);background:var(--hero-blue);color:#fff}.workflow-steps li.is-done>span{border-color:var(--hero-blue);background:var(--hero-blue-soft);color:#0758bb}.draft-item{padding:8px 0;border-top:1px solid #e4e9ef}.draft-summary-row{display:grid;grid-template-columns:48px minmax(0,1fr);align-items:stretch;gap:6px}.draft-checkbox{min-height:48px;display:grid;place-items:center}.draft-checkbox input{width:21px;height:21px}.draft-expand{min-width:0;min-height:48px;padding:8px 10px;display:flex;align-items:center;justify-content:space-between;gap:10px;border:0;border-radius:12px;color:var(--ink);background:#f1f5f9;text-align:left}.draft-expand>span{min-width:0;display:flex;align-items:baseline;gap:8px}.draft-expand strong,.draft-expand small{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.draft-expand small{color:var(--ink-muted)}.draft-expand svg{flex:none;transition:transform .16s ease}.draft-expand[aria-expanded=true] svg{transform:rotate(180deg)}.word-spelling{font-family:var(--font-en);font-size:1.8rem;font-weight:700;letter-spacing:-.03em;margin:0}.ipa{font-family:var(--font-mono);color:var(--lake-500);font-size:.92rem;margin:6px 0 0}.dual-entry{display:grid;grid-template-columns:1fr 1fr;gap:12px}.mission-card{position:relative;overflow:hidden;padding:22px;border:1px solid rgba(10,102,216,.12);border-radius:var(--radius-lg);color:var(--ink);background:#fff;box-shadow:var(--shadow)}.mission-card__topline,.mission-card__title,.section-heading,.quiz-header__topline,.quiz-scoreline{display:flex;align-items:center;justify-content:space-between;gap:16px}.mission-card__topline{color:var(--ink-muted);font-size:.78rem}.mission-badge{display:inline-flex;align-items:center;gap:6px;color:#0758bb;font-weight:700}.mission-card__title{margin-top:20px;align-items:flex-start}.mission-card__title h2{margin:0;font-family:var(--font-cn);font-size:clamp(2rem,7vw,3rem);letter-spacing:-.05em}.mission-card__title p:last-child{margin:7px 0 0;color:var(--ink-muted)}.mission-card__title>svg{flex:none;color:var(--hero-blue);padding:9px;border-radius:15px;background:var(--hero-blue-soft)}.mission-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;margin:22px 0 16px;overflow:hidden;border-radius:var(--radius-md);border:1px solid rgba(10,102,216,.1);background:#dde9f8}.mission-stats div{padding:13px 8px;display:grid;gap:2px;text-align:center;background:#f1f6fd}.mission-stats strong{font-family:var(--font-en);font-size:1.35rem}.mission-stats span{color:var(--ink-muted);font-size:.74rem}.library-picker{margin:8px 0 0;padding:8px 12px 4px;border:0;border-top:1px solid var(--line)}.library-picker legend{margin-bottom:5px;color:var(--ink-muted);font-size:.74rem;font-weight:600}.library-picker .checkbox-row{padding:0 3px;color:var(--ink)}.library-picker .checkbox-row.is-disabled{color:var(--ink-soft)}.library-picker .checkbox-row>span:last-child{color:var(--ink-muted);font-size:.78rem}.library-picker input{width:18px;height:18px;accent-color:var(--hero-blue)}.scope-disclosure{overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-md);background:#f8fafc}.scope-disclosure__toggle{width:100%;min-height:58px;padding:9px 12px;display:flex;align-items:center;justify-content:space-between;gap:12px;border:0;color:inherit;background:transparent;text-align:left}.scope-disclosure__copy{min-width:0;display:grid;gap:2px}.scope-disclosure__copy small{color:var(--ink-muted);font-size:.72rem}.scope-disclosure__copy strong{overflow:hidden;font-size:.9rem;text-overflow:ellipsis;white-space:nowrap}.scope-disclosure__action{flex:none;display:inline-flex;align-items:center;gap:4px;color:var(--hero-blue);font-size:.82rem;font-weight:700}.scope-disclosure__action svg{transition:transform .16s ease}.scope-disclosure__toggle[aria-expanded=true] .scope-disclosure__action svg{transform:rotate(180deg)}.mission-start{width:100%;margin-top:14px;min-height:56px;font-size:1.02rem}.parent-tools{padding-top:4px}.section-heading{align-items:flex-end;margin-bottom:12px}.section-heading h2{margin:0;font-family:var(--font-en);font-size:1.35rem}.section-heading>span{color:var(--ink-soft);font-size:.78rem}.entry-card{padding:18px 14px;text-align:left;min-height:128px;display:flex;flex-direction:column;justify-content:space-between;border:none;border-radius:var(--radius-md);color:var(--ink);background:var(--paper);border:1px solid rgba(101,117,139,.13);box-shadow:var(--shadow-soft);transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}.entry-card:first-child{border-top:3px solid var(--hero-blue)}.entry-card:last-child{border-top:3px solid #7e8fa8}.entry-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.entry-card strong{font-size:1.05rem}.entry-card span{color:var(--ink-muted);font-size:.86rem;line-height:1.45}.entry-card>svg{width:42px;height:42px;padding:10px;border-radius:13px;color:#0758bb;background:var(--hero-blue-soft)}.entry-card:last-child>svg{color:#53657c;background:#eff2f6}.profile-grid{display:grid;gap:14px}.profile-card{position:relative;padding:22px 58px 22px 18px;text-align:left;border:1px solid rgba(101,117,139,.13);border-radius:var(--radius-lg);color:var(--ink);background:var(--paper);box-shadow:var(--shadow);min-height:108px;display:grid;grid-template-columns:56px 1fr;align-items:center;gap:14px;overflow:hidden;transition:transform .18s ease,box-shadow .18s ease}.profile-card:before{content:"";position:absolute;inset:0 auto 0 0;width:6px;background:var(--hero-blue)}.profile-card--sister:before{background:#d9495b}.profile-card:hover{transform:translateY(-2px);box-shadow:0 22px 54px #14233c1f}.profile-card__icon{width:56px;height:56px;border-radius:18px;display:grid;place-items:center;color:#0758bb;background:var(--hero-blue-soft)}.profile-card--sister .profile-card__icon{color:#b62e43;background:#fff0f2}.profile-card__copy{min-width:0}.profile-card__copy small{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.09em;color:var(--ink-muted)}.profile-card__copy p{margin:0;color:var(--ink-muted);font-size:.88rem}.profile-card__arrow{position:absolute;right:20px;color:var(--ink-muted)}.profile-card h2{margin:2px 0 4px;font-family:var(--font-en);font-size:1.5rem}.login-panel{width:min(430px,calc(100% - 32px));padding:30px 26px;margin:0 auto;box-shadow:0 24px 68px #14233c21}.hero-brand{font-family:var(--font-en);font-size:2.2rem;font-weight:700;letter-spacing:-.04em;margin:0 0 8px;color:var(--hero-red)}.quiz-stage{padding:24px 18px;min-height:320px}.quiz-header{padding:4px 2px 2px}.quiz-header__topline{align-items:flex-start}.quiz-header .btn{min-height:48px}.quiz-header .page-title[tabindex="-1"]:focus{outline:none}.quiz-progress-wrap{margin-top:18px}.quiz-progress{height:10px;overflow:hidden;border-radius:999px;background:#e2e8f1}.quiz-progress span{display:block;height:100%;border-radius:inherit;background:var(--hero-blue);transition:width .24s ease}.quiz-scoreline{margin-top:9px;color:var(--ink-muted);font-size:.8rem}.quiz-scoreline span{display:inline-flex;align-items:center;gap:5px}.quiz-prompt{margin:4px 0 0;color:var(--ink-muted);font-size:.95rem;font-weight:600}.quiz-options{display:grid;grid-template-columns:1fr 1fr;gap:10px}.quiz-option{min-height:64px;padding:10px 14px;border-radius:var(--radius-md);border:1px solid var(--line);background:#fff;color:var(--lake-900);font-size:1.05rem;font-weight:600;line-height:1.35;display:inline-flex;align-items:center;justify-content:center;gap:6px;text-align:center;box-shadow:0 1px 2px #14233c08;transition:transform .16s ease,border-color .16s ease,background .16s 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