:root {
            --corp-blue: #19337d;
            --action-blue: #2563eb;
            --action-hover: #1d4ed8;
            --page-bg: #f1f5f9;
            --panel-bg: #ffffff;
            --text-main: #0f172a;
            --text-muted: #64748b;
            --border: #dbe3ee;
        }

        * { box-sizing: border-box; }
        html { min-height: 100%; background: var(--page-bg); }
        body {
            min-height: 100vh;
            margin: 0;
            color: var(--text-main);
            background: var(--page-bg);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
                         "Microsoft YaHei", sans-serif;
            -webkit-font-smoothing: antialiased;
        }

        .page-shell { min-height: 100vh; display: flex; flex-direction: column; }
        .corp-header {
            color: #fff;
            background: var(--corp-blue);
            box-shadow: 0 2px 8px rgba(15, 23, 42, 0.18);
        }
        .corp-header-content {
            width: min(100%, 760px);
            min-height: 64px;
            margin: 0 auto;
            padding: 12px 18px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .corp-logo {
            width: 36px;
            height: 36px;
            display: grid;
            flex: 0 0 auto;
            place-items: center;
            border: 1px solid rgba(255, 255, 255, 0.45);
            border-radius: 9px;
            background: rgba(255, 255, 255, 0.12);
            font-size: 17px;
            font-weight: 700;
        }
        .corp-title { min-width: 0; }
        .corp-title { flex: 1; }
        .home-link { color: #fff; text-decoration: none; font-size: 13px; padding: 7px 10px; border-radius: 7px; background: rgba(255,255,255,.12); }
        .corp-title h1 { margin: 0; font-size: 18px; line-height: 1.35; }
        .corp-title p {
            margin: 3px 0 0;
            color: rgba(255, 255, 255, 0.72);
            font-size: 12px;
        }
        .container {
            width: min(100%, 760px);
            margin: 0 auto;
            padding: 18px 14px 28px;
            flex: 1;
        }
        .panel {
            overflow: hidden;
            border: 1px solid var(--border);
            border-radius: 14px;
            background: #fff;
            box-shadow: 0 5px 18px rgba(15, 23, 42, 0.06);
        }
        .panel-head {
            padding: 18px 18px 15px;
            border-bottom: 1px solid #e8edf4;
            background: #f8fbff;
        }
        .panel-head h2 { margin: 0; font-size: 17px; }
        .panel-head p {
            margin: 7px 0 0;
            color: var(--text-muted);
            font-size: 13px;
            line-height: 1.6;
        }
        .panel-body { padding: 18px; }
        .report-form { display: grid; gap: 18px; }
        .form-field { min-width: 0; display: grid; gap: 8px; }
        label { font-size: 14px; font-weight: 600; }
        .required { margin-left: 3px; color: #dc2626; }
        select, textarea {
            width: 100%;
            border: 1px solid #cbd5e1;
            border-radius: 9px;
            color: var(--text-main);
            background: #fff;
            font: inherit;
            font-size: 16px;
            outline: none;
            transition: border-color 0.16s ease, box-shadow 0.16s ease;
        }
        select { height: 44px; padding: 0 11px; }
        textarea {
            min-height: 132px;
            padding: 11px;
            resize: vertical;
            line-height: 1.65;
        }
        select:focus, textarea:focus {
            border-color: var(--action-blue);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
        }
        textarea::placeholder { color: #94a3b8; }
        .field-help {
            color: var(--text-muted);
            font-size: 12px;
            line-height: 1.5;
        }
        .field-label-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
        }
        .ai-icon-btn {
            position: relative;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 5px;
            flex: 0 0 auto;
            width: auto;
            min-width: 58px;
            height: 36px;
            padding: 0 11px;
            overflow: hidden;
            border: 1px solid #93b4ed;
            border-radius: 9px;
            color: #1d4ed8;
            background: #eff6ff;
            font: inherit;
            font-size: 14px;
            font-weight: 700;
            line-height: 1;
            cursor: pointer;
        }
        .ai-icon-btn:hover { background: #dbeafe; }
        .ai-icon-btn:focus-visible { outline: 3px solid #bfdbfe; outline-offset: 2px; }
        .ai-icon-btn:disabled { cursor: wait; opacity: 0.5; }
        .ai-spark { font-size: 18px; }
        .project-block {
            display: grid;
            gap: 12px;
            padding: 14px;
            border: 1px solid #dbe3ee;
            border-radius: 12px;
            background: #f8fafc;
        }
        .project-block.other { border-style: dashed; }
        .project-block + .project-block { margin-top: 4px; }
        .project-title {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
        }
        .project-title strong { font-size: 15px; }
        .project-fields { display: grid; gap: 10px; }
        .project-fields label { font-size: 13px; font-weight: 600; }
        .project-fields textarea { min-height: 82px; }
        .form-hint-block {
            padding: 22px 14px;
            border: 1px dashed #cbd5e1;
            border-radius: 12px;
            color: var(--text-muted);
            text-align: center;
            font-size: 13px;
            line-height: 1.6;
        }
        .checkbox-field {
            padding: 12px 13px;
            border: 1px solid #dbe3ee;
            border-radius: 9px;
            background: #f8fafc;
        }
        .checkbox-label {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            cursor: pointer;
        }
        .checkbox-label input {
            width: 18px;
            height: 18px;
            margin: 1px 0 0;
            flex: 0 0 auto;
            accent-color: var(--action-blue);
        }
        .checkbox-copy {
            min-width: 0;
            display: grid;
            gap: 4px;
        }
        .checkbox-title {
            color: var(--text-main);
            font-size: 14px;
            font-weight: 600;
            line-height: 1.4;
        }
        .checkbox-description {
            color: var(--text-muted);
            font-size: 12px;
            font-weight: 400;
            line-height: 1.5;
        }
        .panel-actions {
            display: flex;
            align-items: center;
            justify-content: flex-end;
            gap: 12px;
            padding-top: 2px;
        }
        .action-btn {
            min-width: 132px;
            min-height: 42px;
            padding: 9px 20px;
            border: 0;
            border-radius: 9px;
            color: #fff;
            background: var(--action-blue);
            font: inherit;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.16s ease, opacity 0.16s ease;
        }
        .action-btn:hover { background: var(--action-hover); }
        .action-btn:disabled { cursor: not-allowed; opacity: 0.62; }
        .ghost-btn {
            min-width: 132px;
            min-height: 42px;
            padding: 9px 20px;
            border: 1px solid #93b4ed;
            border-radius: 9px;
            color: #1d4ed8;
            background: #eff6ff;
            font: inherit;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: border-color 0.16s ease, background 0.16s ease;
        }
        .ghost-btn:hover {
            border-color: var(--action-blue);
            background: #dbeafe;
        }
        .ghost-btn:disabled { cursor: not-allowed; opacity: 0.62; }
        .status-box {
            display: none;
            padding: 11px 13px;
            border-radius: 9px;
            font-size: 13px;
            line-height: 1.55;
            overflow-wrap: anywhere;
        }
        .status-box.show { display: block; }
        .status-box.success { color: #047857; background: #ecfdf5; }
        .status-box.warning { color: #c2410c; background: #fff7ed; }
        .status-box.error { color: #b91c1c; background: #fef2f2; }
        .status-box.info { color: #1d4ed8; background: #eff6ff; }
        .corp-footer {
            padding: 0 16px 20px;
            color: var(--text-muted);
            text-align: center;
            font-size: 12px;
        }

        @media (max-width: 520px) {
            .ai-icon-btn::after {
                content: "";
                position: absolute;
                inset: -25%;
                background: linear-gradient(110deg, transparent 32%, rgba(255,255,255,.85) 48%, transparent 64%);
                transform: translateX(-145%);
                pointer-events: none;
                animation: ai-mobile-hint 1s ease-out .35s 1;
            }
            .corp-header-content { min-height: 58px; padding: 10px 14px; }
            .corp-title h1 { font-size: 17px; }
            .container { padding: 12px 10px 22px; }
            .panel { border-radius: 12px; }
            .panel-head, .panel-body { padding: 15px 14px; }
            .report-form { gap: 16px; }
            textarea { min-height: 122px; }
            .panel-actions, .action-btn { width: 100%; }
            .panel-actions { flex-direction: column; }
            .action-btn { min-height: 46px; }
        }
        @keyframes ai-mobile-hint { to { transform: translateX(145%); } }
        @media (prefers-reduced-motion: reduce) {
            .ai-icon-btn::after { animation: none; }
        }