:root{
  --bg:#070c17;
  --card:#111a2c;
  --card2:#182f44;
  --ink:#eef3ff;
  --muted:#93a1ba;
  --line:rgba(255,255,255,.09);
  --green:#2fd98a;
  --green-dark:#148c55;
  --blue:#5b8cff;
  --amber:#f2b45c;
  --red:#ff6b6b;
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html,body{height:100%}
body{background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;font-size:15px;-webkit-user-select:none;user-select:none;overflow-x:hidden}
button{font:inherit;border:0;background:none;color:inherit;cursor:pointer}
img,video{display:block}
.hidden{display:none!important}

/* ---------- Home ---------- */
.home-view{min-height:100%;max-width:620px;margin:0 auto;padding:calc(24px + env(safe-area-inset-top)) 22px calc(36px + env(safe-area-inset-bottom))}
.home-header{position:relative;overflow:hidden;border-radius:26px;padding:24px 22px 20px;background:radial-gradient(120% 90% at 90% 0%,rgba(91,140,255,.25),transparent 55%),linear-gradient(160deg,#0c1730,#0a1022)}
.home-header:after{content:"";position:absolute;right:-70px;bottom:-70px;width:190px;height:190px;border-radius:50%;background:radial-gradient(circle,rgba(47,217,138,.12),transparent 65%)}
.home-brand{display:flex;align-items:center;gap:12px;margin-bottom:22px}
.logo{width:46px;height:46px;border-radius:15px;display:grid;place-items:center;font-size:23px;font-weight:800;background:linear-gradient(135deg,#5b8cff,#2fd98a);color:#06121b;box-shadow:0 8px 24px rgba(91,140,255,.35)}
.home-brand strong{display:block;font-size:21px;letter-spacing:.02em}
.home-brand small{display:block;color:#8b9bbd;font-size:11px;margin-top:3px}
.home-header p{color:#c9d5ea;line-height:1.75;font-size:14.5px;position:relative;z-index:1}
.bank-pill{display:inline-flex;align-items:baseline;gap:8px;margin-top:20px;padding:11px 16px;border:1px solid rgba(47,217,138,.25);border-radius:999px;background:rgba(47,217,138,.08);position:relative;z-index:1}
.bank-pill b{font-size:24px;color:var(--green)}
.bank-pill span{color:#9fdcc0;font-size:12px}
.home-body{padding:22px 2px 0;display:grid;gap:12px}
.action-btn{width:100%;border-radius:18px;padding:17px 18px;font-size:16px;font-weight:700;display:flex;align-items:center;justify-content:center;gap:9px}
.action-btn.primary{background:linear-gradient(135deg,#2fd98a,#19b97b);color:#04150d;box-shadow:0 12px 30px rgba(47,217,138,.28)}
.action-btn.primary:active{transform:scale(.98)}
.action-btn.secondary{background:#13203a;border:1px solid rgba(255,255,255,.12);color:#c8d7f0}
.mode-row{background:#0f1a2e;border:1px solid var(--line);border-radius:18px;padding:14px 15px}
.mode-row-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.mode-row-top span{font-weight:700;font-size:14.5px}
.mode-row-top small{color:#8fb0ff;font-size:12px}
.seg-control{display:flex;background:#0a1222;border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:4px;gap:4px}
.seg-btn{flex:1;padding:11px 8px;border-radius:9px;color:#93a1ba;font-size:14px;font-weight:700;background:transparent}
.seg-btn.active{background:linear-gradient(135deg,#2fd98a,#1bbf7b);color:#04150d}
.mode-row p{margin:9px 2px 0;color:var(--muted);font-size:12px;line-height:1.6}
.secure-note{background:#fff2df;border:1px solid #f2d5a5;color:#6c4c1b;border-radius:14px;padding:13px 15px;font-size:13px;line-height:1.6}
.steps{display:grid;gap:10px;margin-top:10px}
.step{display:flex;align-items:center;gap:13px;background:#0f1a2e;border:1px solid var(--line);border-radius:18px;padding:15px 14px}
.step>b{width:30px;height:30px;flex:none;border-radius:50%;display:grid;place-items:center;background:#1b2c4d;color:#8fb0ff;font-size:14px}
.step strong{display:block;font-size:14.5px;margin-bottom:4px}
.step span{color:var(--muted);font-size:12.5px;line-height:1.5}
.tips{margin-top:12px;border:1px solid var(--line);border-radius:16px;background:#0c1425;padding:0 16px}
.tips summary{list-style:none;padding:14px 0;color:#aebcd6;font-weight:600;cursor:pointer}
.tips summary:before{content:"?";display:inline-grid;place-items:center;width:18px;height:18px;border-radius:50%;background:#22345a;color:#7f9be0;font-size:11px;margin-right:8px}
.tips p{color:var(--muted);font-size:13px;line-height:1.7;padding:0 2px 16px}

/* ---------- Camera ---------- */
.camera-view{position:fixed;inset:0;z-index:30;background:#000}
#video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.viewport-frame{position:absolute;left:7%;right:7%;top:22%;height:44%;border:2px solid rgba(47,217,138,.75);border-radius:18px;box-shadow:0 0 0 999px rgba(3,8,18,.32);pointer-events:none}
.viewport-frame:before,.viewport-frame:after{content:"";position:absolute;width:24px;height:24px}
.viewport-frame:before{top:-2px;left:-2px;border-top:4px solid var(--green);border-left:4px solid var(--green);border-top-left-radius:18px}
.viewport-frame:after{bottom:-2px;right:-2px;border-bottom:4px solid var(--green);border-right:4px solid var(--green);border-bottom-right-radius:18px}
.top-pill{position:absolute;top:calc(16px + env(safe-area-inset-top));left:50%;transform:translateX(-50%);background:rgba(8,14,26,.86);border:1px solid rgba(255,255,255,.14);padding:10px 18px;border-radius:999px;font-size:13px;white-space:nowrap;max-width:80%;overflow:hidden;text-overflow:ellipsis;color:#dce7ff;backdrop-filter:blur(8px);z-index:4}
.top-pill.loading{color:#ffd9a0}
.top-pill.ok{color:#9bffce;border-color:rgba(47,217,138,.4)}
.back-btn{position:absolute;top:calc(16px + env(safe-area-inset-top));left:16px;z-index:4}
.camera-actions{position:absolute;left:0;right:0;bottom:calc(34px + env(safe-area-inset-bottom));display:flex;align-items:center;justify-content:space-evenly;z-index:4}
.round-btn{min-width:54px;padding:12px 14px;border-radius:999px;background:rgba(10,17,31,.82);border:1px solid rgba(255,255,255,.15);color:#dce7ff;font-size:13px;font-weight:600;backdrop-filter:blur(8px)}
.round-btn:active{transform:scale(.96)}
.shutter-btn{width:76px;height:76px;border-radius:50%;background:rgba(255,255,255,.12);border:3px solid #fff;display:grid;place-items:center}
.shutter-btn span{width:58px;height:58px;border-radius:50%;background:#fff;box-shadow:0 2px 14px rgba(0,0,0,.4)}
.shutter-btn:active span{background:#cfe8ff;transform:scale(.94)}
.camera-hint{position:absolute;bottom:calc(130px + env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);width:88%;text-align:center;color:#d6e0f2;font-size:13.5px;line-height:1.6;background:rgba(8,14,26,.7);padding:10px 14px;border-radius:14px;backdrop-filter:blur(6px);z-index:3}

@media (orientation:landscape){
  .viewport-frame{left:6%;right:6%;top:10%;height:58%}
  .camera-hint{bottom:calc(118px + env(safe-area-inset-bottom))}
}

/* ---------- Image mode ---------- */
.image-view{position:fixed;inset:0;z-index:30;background:#050a14;display:flex;flex-direction:column}
.image-topbar{display:flex;align-items:center;justify-content:space-between;padding:calc(14px + env(safe-area-inset-top)) 16px 12px;color:#c3cfe4}
.image-topbar span{font-size:13.5px}
.image-stage{flex:1;display:grid;place-items:center;padding:10px 12px calc(14px + env(safe-area-inset-bottom));overflow:auto}
#previewImg{max-width:100%;max-height:100%;border-radius:16px;box-shadow:0 14px 44px rgba(0,0,0,.45)}

/* ---------- Result ---------- */
.result-panel{position:fixed;z-index:50;left:0;right:0;bottom:0;border-radius:26px 26px 0 0;background:#f7f9ff;color:#111c33;max-height:78vh;max-height:min(78dvh,760px);display:flex;flex-direction:column;box-shadow:0 -18px 60px rgba(0,0,0,.45);animation:sheetUp .22s ease-out}
@keyframes sheetUp{from{transform:translateY(30px);opacity:0}to{transform:none;opacity:1}}
.res-handle{width:42px;height:5px;border-radius:99px;background:#cdd6e6;margin:10px auto 0}
#resultBody{padding:12px 20px calc(20px + env(safe-area-inset-bottom));overflow-y:auto;overscroll-behavior:contain}
.res-title{display:flex;align-items:center;gap:9px;margin:2px 0 12px}
.type-badge{font-size:11px;font-weight:700;padding:5px 9px;border-radius:7px;background:#e7edff;color:#3f5fd0}
.confidence{margin-left:auto;font-size:12px;font-weight:800}
.confidence.high{color:#0c9c5e}
.confidence.mid{color:#c47a16}
.confidence.low{color:#c24b4b}
.res-answer{display:flex;align-items:flex-start;gap:10px;background:linear-gradient(135deg,#0e2c46,#103a2c);border-radius:18px;color:#eafdff;padding:17px 18px;margin-bottom:13px;box-shadow:0 12px 28px rgba(13,40,60,.2)}
.res-answer .tag{flex:none;font-size:12px;font-weight:800;margin-top:2px;color:#8df4c3}
.res-answer strong{display:block;font-size:23px;line-height:1.4;letter-spacing:.01em;color:#fff}
.res-answer .option-copy{margin-left:auto;flex:none;border:1px solid rgba(255,255,255,.22);border-radius:9px;padding:6px 10px;font-size:12px;color:#d6ffe9}
.res-answer .res-screen-badge{display:inline-block;margin-bottom:9px;padding:7px 12px;border-radius:11px;background:#ffd66b;color:#2a2000;font-size:17px;font-weight:800;letter-spacing:.02em}
.res-question{background:#fff;border:1px solid #e5eaf3;border-radius:16px;padding:15px 16px;margin-bottom:11px}
.res-question small{display:block;color:#8996ab;font-size:11px;margin-bottom:7px;letter-spacing:.08em}
.res-question p{font-size:15px;line-height:1.7;color:#1c2942}
.res-options{list-style:none;background:#fff;border:1px solid #e5eaf3;border-radius:16px;padding:10px;margin-bottom:12px}
.res-options li{display:flex;gap:10px;align-items:flex-start;border-radius:11px;padding:10px 11px;font-size:13.5px;line-height:1.55;color:#34405a}
.res-options b{flex:none;width:22px;height:22px;border-radius:7px;display:grid;place-items:center;background:#eef1f6;color:#66718a;font-size:11px}
.res-options li.right{background:#e9faf1}
.res-options li.right b{background:#2fd98a;color:#07331f}
.res-options li.wrong{background:#fff0ec}
.res-options li.wrong b{background:#ff8a80;color:#61100a}
.candidate-block{margin-top:12px;border-top:1px dashed #dce2ed;padding-top:11px}
.candidate-block summary{list-style:none;color:#56637a;font-size:13px;font-weight:700;cursor:pointer;display:flex;align-items:center;gap:8px}
.candidate-block summary:after{content:"▾";margin-left:auto;color:#9aa6ba}
.candidate-block[open] summary:after{content:"▴"}
.candidate-list{display:grid;gap:8px;margin-top:12px}
.candidate-btn{width:100%;text-align:left;background:#fff;border:1px solid #e1e6f0;border-radius:13px;padding:12px 13px}
.candidate-btn.current{border-color:#4d7bff;background:#f2f5ff}
.candidate-btn small{display:flex;justify-content:space-between;color:#7b88a0;font-size:11px;margin-bottom:5px}
.candidate-btn small b{color:#3557d0}
.candidate-btn p{font-size:13px;line-height:1.5;color:#26344e;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.no-match{padding:20px 4px;color:#8a93a5;line-height:1.7;font-size:14px}
.ocr-raw{margin-top:12px;background:#fff;border:1px solid #e1e6f0;border-radius:14px;padding:13px}
.ocr-raw small{display:block;color:#8a97aa;font-size:11px;margin-bottom:7px}
.ocr-raw textarea{width:100%;min-height:84px;border:1px solid #d9dfea;border-radius:10px;padding:10px;font:13px/1.6 inherit;resize:vertical;color:#22304a;background:#fbfcfe;outline:0}
.ocr-raw textarea:focus{border-color:#5b8cff}
.res-actions{display:flex;gap:9px;margin-top:14px}
.res-actions button{flex:1;border-radius:13px;padding:14px;font-weight:700;font-size:14px}
.btn-next{background:linear-gradient(135deg,#2fd98a,#1bbf7b);color:#04150d}
.btn-copy{background:#eef2fa;color:#2a3953;border:1px solid #dbe2ee}
.btn-close{background:#fff;color:#56627a;border:1px solid #dbe2ee}

/* ---------- Toast ---------- */
#toast{position:fixed;top:calc(18px + env(safe-area-inset-top));left:50%;transform:translateX(-50%) translateY(-16px);background:rgba(10,16,30,.92);color:#e8eefb;padding:11px 18px;border-radius:12px;font-size:13px;opacity:0;pointer-events:none;transition:.25s;z-index:99;max-width:88%;text-align:center;backdrop-filter:blur(8px)}
#toast.show{opacity:1;transform:translateX(-50%) translateY(0)}