:root{--blue:#3769bd;--blue2:#2155a4;--blue-pale:#eaf1fc;--ink:#152945;--soft:#677a91;--line:#e3eaf3;--bg:#f6f8fd;--white:#fff;--green:#247b61;--shadow:0 16px 50px rgba(38,68,112,.06)}
*{box-sizing:border-box}html{font-family:Inter,-apple-system,BlinkMacSystemFont,"Noto Sans CJK SC","Microsoft Yahei",Arial,sans-serif;color:var(--ink);background:var(--bg);font-size:15px}body{margin:0;min-height:100vh}button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled{opacity:.55;cursor:not-allowed}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #a9cbff;outline-offset:2px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.app-shell{width:min(1160px,calc(100% - 44px));margin:auto}.topbar{display:flex;align-items:center;justify-content:space-between;padding:26px 0 20px;border-bottom:1px solid var(--line);gap:16px}.brand{display:flex;align-items:center;gap:12px}.brand-mark{width:45px;height:45px;border-radius:13px;background:linear-gradient(135deg,#3b73d6,#2456a6);color:white;font-size:26px;display:grid;place-items:center;font-weight:700;box-shadow:0 6px 18px #3b73d633}.brand-name{font-size:19px;font-weight:800;letter-spacing:.025em}.brand-name span{font-size:12px;letter-spacing:.12em;color:#8094b2;margin-left:3px}.brand-sub{font-size:12px;color:#8a99ac;margin-top:1px}.top-actions{display:flex;align-items:center;gap:14px}.network-status{font-size:12px;color:var(--soft);display:inline-flex;gap:8px;align-items:center}.network-status:before{content:"";width:7px;height:7px;background:#29a67a;display:inline-block;border-radius:100%}.network-status.offline:before{background:#e49b42}.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:1px solid transparent;border-radius:10px;font-weight:700;min-height:41px;padding:10px 16px;white-space:nowrap;transition:background .15s ease,transform .15s ease}.btn:hover{transform:translateY(-1px)}.btn-primary{background:var(--blue);color:white;box-shadow:0 5px 12px #3769bd20}.btn-primary:hover{background:var(--blue2)}.btn-quiet{background:#eef2f8;color:#385573}.btn-quiet:hover{background:#e3ebf6}.btn-dark{background:#17345b;color:white}.btn-dark:hover{background:#274e7e}.btn-blue-outline{background:#f1f6ff;color:var(--blue2);border-color:#cbdcf6}.intro{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;padding:43px 0 27px}.eyebrow{font-size:10px;font-weight:800;letter-spacing:.22em;color:#5680c1}.intro h1{font-size:clamp(28px,3vw,36px);letter-spacing:-.04em;margin:10px 0 10px}.intro p{margin:0;color:var(--soft);font-size:14px}.btn-add{min-width:138px;font-size:14px;margin-bottom:2px}.btn-add span{font-size:21px;line-height:13px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:25px}.stat{background:white;padding:18px 22px 15px;border:1px solid var(--line);border-radius:13px;min-height:112px;box-shadow:var(--shadow)}.stat span{display:block;font-size:12px;color:var(--soft)}.stat strong{font-size:31px;font-weight:800;display:inline-block;line-height:1.5;letter-spacing:-.04em;margin-top:3px}.stat small{font-size:11px;color:#96a5b7;margin-left:7px}.stat.accent{border-color:#c1d6f7;background:linear-gradient(110deg,#ecf4ff,#fff)}.stat.accent strong{color:var(--blue)}.panel{background:white;box-shadow:var(--shadow);border:1px solid var(--line);border-radius:14px;overflow:hidden}.toolbar{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:18px 20px}.tabs{display:flex;gap:5px;flex-wrap:wrap}.tab{border:0;background:none;padding:9px 13px;color:#71829a;border-radius:8px;font-weight:700}.tab.active{background:#eaf1fd;color:#2b5dab}.pill{font-size:11px;border-radius:5px;padding:2px 6px;background:#edf0f5;margin-left:3px}.active .pill{background:#d7e5fc}.toolbar-right{display:flex;align-items:center;gap:12px}.search-wrap{display:flex;align-items:center;gap:7px;border:1px solid var(--line);background:#fbfcff;padding:0 12px;color:#91a2b8;border-radius:9px;min-height:41px}.search-wrap input{width:240px;background:none;border:0;outline:none;color:var(--ink);font-size:13px}.search-wrap input:focus-visible{outline:none}.column-controls{background:#f8faff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:13px 20px;display:flex;align-items:center;gap:15px;flex-wrap:wrap}.control-title{font-size:12px;color:#8a9aaf;white-space:nowrap}.switch-group{display:flex;gap:8px;flex-wrap:wrap;margin-right:auto}.switch{background:white;border:1px solid #dbe5f2;color:#596c85;border-radius:7px;padding:7px 11px;display:inline-flex;align-items:center;gap:7px;font-size:12px;min-height:30px}.switch .dot{width:8px;height:8px;border-radius:50%;background:#bdc7d2}.switch.on{border-color:#b5cff4;background:#eaf2ff;color:#2b5dac}.switch.on .dot{background:#3c78d6}.text-button{border:0;background:transparent;color:#5574a2;font-size:12px;padding:4px 3px}.text-button:hover{text-decoration:underline}.table-scroll{overflow-x:auto}.word-table{width:100%;border-collapse:separate;border-spacing:0;table-layout:fixed}.col-kana{width:21%}.col-word{width:23%}.col-meaning{width:34%}.col-pos{width:14%}.col-actions{width:8%}.word-table th{background:#4074c7;color:white;text-align:left;padding:14px 21px;font-size:13px;letter-spacing:.02em}.word-table th+th{border-left:1px solid #86a7dd}.word-table th span{font-size:10px;color:#cadeff;font-weight:400;margin-left:5px}.word-table td{padding:0 12px 0 20px;height:67px;border-bottom:1px solid #e8edf4;vertical-align:middle}.word-table tbody tr:nth-child(even){background:#f7f9fe}.word-table tbody tr:hover{background:#f0f5fd}.cell-btn{border:0;background:transparent;padding:12px 0;display:block;max-width:100%;overflow:hidden;text-overflow:ellipsis;text-align:left;color:#1d3555;font-size:17px;font-weight:600;word-break:break-word;white-space:normal}.cell-btn:hover{color:#3769bd}.cell-btn.meaning{font-size:15px;font-weight:500}.cell-btn.pos{font-size:12px;color:#4e6b90}.cell-btn.masked{background:linear-gradient(90deg,#e8edf5,#dbe4f0);color:#6682ac;border-radius:6px;padding:7px 12px;margin:6px 0;font-size:12px;letter-spacing:.03em;white-space:nowrap;font-weight:500}.word-cell{display:flex;align-items:center;gap:9px}.word-cell .cell-btn{flex:0 1 auto}.speaker{border:0;background:#eaf1fc;color:#386bb4;border-radius:7px;flex-shrink:0;width:28px;height:28px;display:grid;place-items:center;font-size:10px}.speaker:hover{background:#cfdef6}.actions-menu{display:flex;align-items:center;justify-content:center;gap:3px}.row-menu-btn{border:0;color:#8498b3;background:transparent;width:31px;height:34px;border-radius:8px;font-size:21px;display:grid;place-items:center}.row-menu-btn:hover{background:#e4edfa;color:#2055a7}.row-menu{position:relative}.row-menu details{position:relative}.row-menu summary{list-style:none}.row-menu summary::-webkit-details-marker{display:none}.row-menu-content{position:absolute;z-index:6;right:0;top:35px;min-width:115px;background:#fff;border:1px solid #d5e2f3;border-radius:9px;box-shadow:0 12px 30px #15294528;padding:4px}.row-menu-content button{border:0;background:none;display:block;text-align:left;width:100%;padding:9px 12px;border-radius:5px;font-size:13px}.row-menu-content button:hover{background:#edf3fc}.row-menu-content .danger{color:#b4434d}.table-foot{display:flex;justify-content:space-between;gap:16px;padding:16px 21px;color:#95a4b6;font-size:12px}.table-foot b{color:#3769bd}.empty-state{text-align:center;padding:47px 20px}.empty-illustration{width:60px;height:60px;border-radius:20px;background:#e9f1fb;color:#4777c0;display:grid;place-items:center;font-size:29px;font-weight:800;margin:0 auto 16px}.empty-state h3{font-size:17px;margin:0 0 5px}.empty-state p{font-size:13px;color:#95a4b6;margin:0}.hint-line{text-align:center;font-size:11px;color:#acb7c5;margin:24px 0 45px}.hint-line span{margin:0 8px}
dialog{border:0;padding:0;max-height:min(90vh,980px);border-radius:16px;box-shadow:0 28px 90px #15294552;color:var(--ink);background:#fff}dialog::backdrop{background:#101f36a8;backdrop-filter:blur(3px)}.modal{width:min(700px,calc(100% - 28px))}.modal-inner{padding:26px 30px;overflow:auto;max-height:90vh}.modal-head,.review-top{display:flex;justify-content:space-between;align-items:start;margin-bottom:19px}.modal-head h2,.review-top h2{font-size:23px;margin:5px 0}.icon-btn{border:0;background:#f2f5fa;color:#6c819c;border-radius:8px;width:34px;height:34px;font-size:23px}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:12px 0}.field{display:flex;flex-direction:column;gap:7px;min-width:0}.field>span{font-size:13px;font-weight:700}.field em{font-style:normal;color:#c7505b}.field input,.field select,.field textarea{background:#fafcff;border:1px solid #d8e4f1;border-radius:9px;width:100%;padding:11px 12px;resize:vertical;color:var(--ink);min-height:44px}.lookup-line{display:flex;align-items:center;gap:10px;margin:13px 0 4px}.lookup-line small{font-size:11px;color:#97a4b6;line-height:1.5}.lookup-status{font-size:12px;color:#6480a6;margin:8px 0;min-height:14px}.suggestions{border:1px solid #d5e5f8;border-radius:10px;max-height:208px;overflow:auto;background:#fbfdff;margin:8px 0 15px}.suggestion{padding:12px 13px;border:0;border-bottom:1px solid #e5eef9;display:flex;gap:12px;text-align:left;background:transparent;width:100%;align-items:center}.suggestion:hover{background:#e8f1fc}.suggestion:last-child{border:0}.suggestion strong{font-size:17px;color:#213e69}.suggestion .reading{color:#6884ab;font-size:12px;margin-left:5px}.suggestion .en{color:#8a9cad;font-size:12px;line-height:1.5}.suggestion .pos-label{font-size:11px;color:#456aaa;background:#e8f0fa;padding:3px 6px;border-radius:5px;margin-left:auto;white-space:nowrap}.form-tip{margin:15px 0;font-size:12px;color:#8796a8;line-height:1.6}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}.review-modal{width:min(650px,calc(100% - 28px))}.progress-row{display:flex;justify-content:space-between;color:#8194ac;font-size:12px;margin-top:7px}.progress-track{height:5px;border-radius:99px;background:#e8eef7;margin:10px 0 24px;overflow:hidden}.progress-track>div{height:100%;background:#427bcf;width:0;transition:width .3s}.review-card{text-align:center;padding:36px 18px 26px;border:1px solid #e2eafa;border-radius:14px;background:linear-gradient(160deg,#f8fbff,#ecf3fd);min-height:285px}.review-label{color:#8da0ba;font-size:12px}.review-word{font-size:clamp(32px,5vw,55px);font-weight:800;line-height:1.5;margin:12px 0 8px}.speaker-main{border:0;background:white;color:#4776b9;border-radius:20px;font-size:12px;padding:8px 12px;box-shadow:0 2px 10px #92afe129}.review-answer{border-top:1px dashed #ccdaeb;display:grid;gap:8px;padding:18px 0 0;margin:20px auto 0;max-width:380px}.review-answer[hidden]{display:none}.review-answer .kana{font-size:22px;font-weight:700;color:#3b65a2}.review-answer .meaning{font-size:19px;font-weight:700}.review-answer .pos{font-size:12px;color:#8699b0}.reveal-btn{margin-top:22px}.reveal-btn span{background:#648bd0;border-radius:4px;font-size:11px;padding:2px 5px;margin-left:6px}.grading{text-align:center;margin-top:23px}.grading p{font-size:13px;color:#7389a3}.grade-buttons{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}.grade{padding:12px 7px;border-radius:9px;background:white;border:1px solid #d8e2ed;color:var(--ink);display:grid;gap:4px}.grade strong{font-size:14px}.grade small{font-size:11px;color:#8496ad}.grade-again{background:#fff5f5;border-color:#f3cccc;color:#bd505a}.grade-hard{background:#fffaf0;border-color:#f3dfb6;color:#926b1d}.grade-good{background:#edf9f3;border-color:#b9e3cc;color:#23835c}.review-shortcuts{font-size:11px;color:#abb5c3;text-align:center;margin-top:20px}.done{text-align:center;padding:18px 0 5px}.done-icon{width:65px;height:65px;display:grid;place-items:center;margin:auto;border-radius:50%;background:#daf2e5;color:#269166;font-size:34px}.done h3{font-size:22px}.done p{color:#8291a4;font-size:13px}.done button{margin:12px auto}.backup-explain{color:#708198;font-size:13px;line-height:1.7}.backup-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}.file-label{cursor:pointer}.import-mode{display:flex;align-items:center;gap:8px;margin:20px 0 8px;font-size:13px}.toast{position:fixed;z-index:100;bottom:24px;left:50%;transform:translate(-50%,100px);opacity:0;background:#203752;color:white;border-radius:10px;padding:12px 18px;font-size:13px;box-shadow:0 9px 24px #15294533;pointer-events:none;transition:opacity .2s,transform .2s;max-width:min(90vw,560px);text-align:center}.toast.show{opacity:1;transform:translate(-50%,0)}
@media(max-width:850px){.toolbar{align-items:stretch;flex-direction:column}.toolbar-right{justify-content:space-between}.search-wrap{flex:1}.search-wrap input{width:100%}.table-foot{font-size:11px}.word-table td{padding-left:14px;padding-right:7px}.word-table th{padding:14px}}
@media(max-width:600px){.app-shell{width:calc(100% - 24px)}.topbar{padding:17px 0}.brand-mark{width:39px;height:39px}.brand-name{font-size:16px}.brand-name span{display:none}.brand-sub{font-size:10px}.top-actions{gap:6px}.network-status{display:none}.top-actions .btn{font-size:11px;padding:8px 10px}.intro{padding:25px 0 19px;align-items:center}.intro h1{font-size:27px}.intro p{font-size:12px;line-height:1.65;max-width:280px}.btn-add{min-width:auto;padding:9px 12px;font-size:12px}.stats{gap:8px;grid-template-columns:repeat(2,1fr);margin-bottom:14px}.stat{padding:12px 15px;min-height:86px}.stat strong{font-size:25px}.toolbar{padding:12px}.toolbar-right{gap:8px}.toolbar-right .btn{padding:10px;font-size:12px}.tab{font-size:12px;padding:9px 10px}.column-controls{padding:11px 12px;gap:7px}.control-title{width:100%}.switch-group{width:100%;gap:5px}.switch{padding:6px 8px;font-size:11px}.word-table{min-width:590px}.word-table th{padding:12px 11px}.word-table td{height:58px;padding-left:11px;padding-right:4px}.word-table .col-kana{width:22%}.word-table .col-word{width:22%}.word-table .col-meaning{width:32%}.word-table .col-pos{width:15%}.word-table .col-actions{width:9%}.cell-btn{font-size:16px}.cell-btn.meaning{font-size:14px}.table-foot{padding:12px}.table-foot span:last-child{display:none}.modal-inner{padding:22px 18px}.field-grid{grid-template-columns:1fr;gap:12px}.lookup-line{align-items:flex-start;flex-direction:column}.review-card{padding:32px 12px}.review-shortcuts{font-size:10px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important}}

.eye-button{border:0;background:transparent;color:#91a4be;border-radius:5px;font-size:18px;width:19px;min-width:19px;padding:0}.eye-button:hover{color:#3769bd}.word-cell{gap:5px}.action-icon{background:transparent;border:0;color:#7c91af;font-size:19px;width:26px;height:30px;border-radius:5px}.action-icon:hover{background:#dfecfa;color:#2f61ab}.action-icon.danger:hover{color:#ba5262;background:#ffeaed}

.mobile-scroll-hint{display:none}
@media(max-width:600px){.mobile-scroll-hint{display:block;padding:10px 12px;font-size:11px;color:#6284b6;background:#edf4ff;border-bottom:1px solid #dce8f8}.table-scroll{scrollbar-width:thin;scrollbar-color:#97afe0 #edf4ff}}

/* V2 cloud-sync controls */
.sync-indicator{font-size:11px;font-weight:650;color:#2e8b66;border-radius:999px;background:#e9f7ef;border:1px solid #c7ead7;padding:6px 10px;white-space:nowrap}
.sync-indicator[data-state="pending"]{color:#95651c;background:#fff6e7;border-color:#f2e0bc}
.sync-indicator[data-state="error"]{color:#b64451;background:#fff0f2;border-color:#f4cfd3}
.sync-indicator[data-state="off"]{color:#8090a5;background:#f2f5f8;border-color:#e2e6ec}
.sync-panel{background:#f3f8ff;border:1px solid #dbe9fa;border-radius:11px;padding:13px 16px;margin:16px 0 19px}
.sync-panel-head{font-weight:750;font-size:12px;color:#4172b9}
.sync-panel p{font-size:13px;margin:6px 0;line-height:1.6;overflow-wrap:anywhere}
.sync-panel .sync-help{font-size:11px;color:#8697ab}
.sync-panel .sync-error{color:#bb4a54}
.sync-button-line{display:flex;gap:9px;flex-wrap:wrap;align-items:center;margin:12px 0}
.sync-button-line .btn{font-size:12px}
@media(max-width:600px){.sync-indicator{font-size:10px;padding:5px 7px}.top-actions #sync-open{font-size:11px;padding:7px 8px}.top-actions #backup-btn{display:none}.sync-button-line .btn{flex:1}}