:root{--bg: #f4f5f7;--card: #ffffff;--text: #17181a;--text-2: #5f6368;--text-3: #9aa0a6;--line: #ececec;--primary: #d8262c;--primary-dark: #b71c22;--ok: #0a8f3c;--warn: #d97706;--radius: 16px;--shadow: 0 1px 3px rgba(20, 24, 33, .06), 0 4px 14px rgba(20, 24, 33, .05)}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Helvetica Neue,Microsoft YaHei,sans-serif;-webkit-font-smoothing:antialiased}.container{max-width:560px;margin:0 auto;padding:0 16px 40px}.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:4px;margin:0 -16px 8px;padding:10px 12px;background:#f4f5f7eb;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}.topbar .back{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border:none;border-radius:50%;background:transparent;color:var(--text);font-size:22px;cursor:pointer;flex-shrink:0}.topbar .back:active{background:#0000000f}.topbar .title{font-size:17px;font-weight:600;display:flex;align-items:center;gap:8px;min-width:0}.topbar .title .t-text{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.topbar .right{margin-left:auto;flex-shrink:0}.hero{padding:28px 4px 18px}.hero h1{margin:0;font-size:26px;letter-spacing:.5px}.hero p{margin:8px 0 0;color:var(--text-2);font-size:15px}.section-label{margin:18px 4px 10px;font-size:13px;color:var(--text-3);letter-spacing:1px}.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}.list-item{display:flex;align-items:center;gap:12px;padding:15px 16px;color:var(--text);text-decoration:none;font-size:17px;border-bottom:1px solid var(--line);background:var(--card);transition:background .15s}.list-item:last-child{border-bottom:none}.list-item:active{background:#f7f7f8}.list-item .chevron{margin-left:auto;color:var(--text-3);font-size:15px}.list-item .sub{color:var(--text-3);font-size:13px;margin-left:auto;padding-left:8px;flex-shrink:0}.line-badge{display:inline-flex;align-items:center;justify-content:center;min-width:28px;height:28px;padding:0 6px;border-radius:14px;color:#fff;font-size:14px;font-weight:700;flex-shrink:0;letter-spacing:0}.line-badge.sm{min-width:22px;height:22px;font-size:12px;border-radius:11px}.search-input{width:100%;padding:13px 16px;font-size:16px;border:none;border-radius:12px;background:var(--card);box-shadow:var(--shadow);outline:none;color:var(--text);margin:4px 0 14px}.search-input::placeholder{color:var(--text-3)}.search-input:focus{box-shadow:0 0 0 2px #d8262c40,var(--shadow)}.station-hero{padding:10px 4px 16px;display:flex;align-items:center;gap:10px}.station-hero h1{margin:0;font-size:26px}.direction-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px 18px 16px;margin-bottom:14px;border-top:4px solid var(--line-color, #999)}.direction-card .dir{font-size:14px;color:var(--text-2)}.direction-card .dir b{color:var(--text);font-size:15px}.direction-card .door{margin:8px 0 4px;font-size:44px;font-weight:800;line-height:1.1}.direction-card .door small{font-size:18px;font-weight:600;color:var(--text-2);margin-left:4px}.direction-card .guide{font-size:15px;color:var(--text-2);margin-top:6px;display:flex;gap:6px;align-items:baseline}.direction-card .empty{font-size:15px;color:var(--text-3);margin-top:10px}.tip{color:var(--text-3);font-size:13px;text-align:center;margin-top:18px}.empty-state{text-align:center;color:var(--text-3);padding:48px 0;font-size:15px}.btn{border:none;border-radius:12px;padding:12px 18px;font-size:15px;font-weight:600;cursor:pointer;background:var(--primary);color:#fff;transition:opacity .15s}.btn:disabled{opacity:.4;cursor:default}.btn:active:not(:disabled){background:var(--primary-dark)}.btn.ghost{background:transparent;color:var(--text-2);font-weight:500;padding:8px 12px}.btn.sm{padding:8px 14px;font-size:14px;border-radius:10px}.input{width:100%;padding:13px 14px;font-size:16px;border:1px solid var(--line);border-radius:12px;background:var(--card);color:var(--text);outline:none}.input:focus{border-color:var(--primary)}.login-card{margin-top:24px;padding:24px 20px;display:flex;flex-direction:column;gap:12px}.login-card h1{margin:0 0 6px;font-size:22px}.form-error{color:var(--primary);font-size:14px;margin:0}.admin-form{padding:16px;display:flex;flex-wrap:wrap;gap:10px;align-items:center}.admin-form .input{width:auto;flex:1 1 130px;padding:10px 12px;font-size:15px}.admin-form select.input{flex:0 1 120px}.station-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:14px 16px;margin-bottom:12px}.station-card .st-name{font-size:17px;font-weight:700}.door-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:12px}.door-row .dir-chip{font-size:13px;padding:4px 10px;border-radius:999px;flex-shrink:0}.dir-chip.done{background:#0a8f3c1a;color:var(--ok)}.dir-chip.todo{background:#d977061f;color:var(--warn)}.door-row .input.door{flex:0 1 88px;padding:9px 12px;font-size:15px}.door-row .input.guide{flex:1 1 150px;padding:9px 12px;font-size:15px}.door-row .status-ok{color:var(--ok);font-size:13px}.door-row .status-err{color:var(--primary);font-size:13px}.collapse{margin:22px 0;color:var(--text-3);font-size:14px}.collapse summary{cursor:pointer}.collapse .inner{display:flex;gap:10px;margin-top:12px}.footer-link{display:block;text-align:center;color:var(--text-3);font-size:13px;margin-top:36px;text-decoration:none}