/* ==========================================================
   A9 · GPAI义务判定 —— 「技术规格书」设计系统
   钢蓝白 + 深钢蓝 + 信号橙；等宽数值、规格表、对数刻度与阶梯条。
   ========================================================== */
.gpo-page, .gpo-modal, .gpo-toast {
    --gpo-bg: #f3f7fb;
    --gpo-card: #ffffff;
    --gpo-card2: #f7fafc;
    --gpo-ink: #10263a;
    --gpo-ink2: #4b6072;
    --gpo-ink3: #8598a8;
    --gpo-steel: #0c4a6e;
    --gpo-steel-soft: #e3eef7;
    --gpo-orange: #d1590c;
    --gpo-orange-soft: #fff0e3;
    --gpo-red: #b33030;
    --gpo-red-soft: #fbeaea;
    --gpo-green: #1d7658;
    --gpo-green-soft: #e3f3ed;
    --gpo-line: #cfdfeb;
    --gpo-line2: #e6eef5;
    --gpo-shadow: 0 1px 2px rgba(12, 74, 110, .07), 0 10px 26px rgba(12, 74, 110, .07);
    --gpo-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}
:root[data-theme="dark"] .gpo-page,
:root[data-theme="dark"] .gpo-modal,
:root[data-theme="dark"] .gpo-toast {
    --gpo-bg: #0b131c;
    --gpo-card: #141f2a;
    --gpo-card2: #1b2835;
    --gpo-ink: #e9f2f8;
    --gpo-ink2: #aabecd;
    --gpo-ink3: #7b93a5;
    --gpo-steel: #7bb8e8;
    --gpo-steel-soft: #1a3247;
    --gpo-orange: #f5a464;
    --gpo-orange-soft: #38261a;
    --gpo-red: #ff9292;
    --gpo-red-soft: #382020;
    --gpo-green: #6fc7a3;
    --gpo-green-soft: #17342a;
    --gpo-line: #2a3c4d;
    --gpo-line2: #213141;
    --gpo-shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 26px rgba(0, 0, 0, .34);
}

.gpo-page {
    background: var(--gpo-bg); color: var(--gpo-ink);
    font-family: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
    font-size: 14px; line-height: 1.8; padding: 26px 0 56px; min-height: 60vh;
}
.gpo-wrap { max-width: 1220px; margin: 0 auto; padding: 0 22px; }
.gpo-page b, .gpo-page strong { color: var(--gpo-steel); font-weight: 700; }
.gpo-page .detail-breadcrumb { background: transparent; margin-bottom: 20px; font-size: 12.5px; }

.gpo-hero { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 0; border: 1px solid var(--gpo-line); background: var(--gpo-card); box-shadow: var(--gpo-shadow); }
.gpo-hero-copy { padding: 27px 29px 21px; }
.gpo-kicker { display: inline-block; font: 600 10.5px/1.5 var(--gpo-mono); letter-spacing: .13em; color: var(--gpo-orange); border: 1px solid var(--gpo-line); border-left: 3px solid var(--gpo-orange); padding: 4px 10px; margin-bottom: 14px; }
.gpo-hero h1 { font-size: clamp(28px, 3.2vw, 39px); font-weight: 800; letter-spacing: -.03em; margin: 0 0 11px; }
.gpo-sub { font-size: 14px; line-height: 1.95; color: var(--gpo-ink2); margin: 0 0 19px; }
.gpo-hero-form { border-top: 1px solid var(--gpo-line2); padding-top: 14px; }
.gpo-form-line { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.gpo-label { flex: 0 0 132px; font-size: 11.5px; color: var(--gpo-ink3); font-weight: 700; }
.gpo-input { flex: 1 1 auto; min-width: 0; height: 38px; padding: 0 11px; border: 1px solid var(--gpo-line); border-radius: 2px; background: var(--gpo-card2); color: var(--gpo-ink); font: 13.5px inherit; font-family: inherit; outline: none; }
.gpo-input:focus { border-color: var(--gpo-steel); box-shadow: 0 0 0 3px var(--gpo-steel-soft); }
.gpo-input--mono { font-family: var(--gpo-mono); }
.gpo-form-note { min-height: 17px; margin: 0; font-size: 11.5px; color: var(--gpo-red); }
.gpo-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 34px; padding: 7px 15px; border: 1px solid var(--gpo-steel); border-radius: 2px; background: var(--gpo-card); color: var(--gpo-steel); font: 600 12.5px inherit; font-family: inherit; cursor: pointer; white-space: nowrap; transition: background .15s, transform .15s; }
.gpo-btn:hover { background: var(--gpo-steel-soft); transform: translateY(-1px); }
.gpo-btn--main { width: 100%; height: 40px; background: var(--gpo-steel); color: #fff; font-size: 14px; }
:root[data-theme="dark"] .gpo-btn--main { color: #08141f; }
.gpo-btn--ghost { border-color: var(--gpo-line); color: var(--gpo-ink2); background: transparent; }
.gpo-btn--sm { min-height: 27px; padding: 3px 10px; font-size: 11.5px; }
.gpo-hero-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 16px; border: 1px solid var(--gpo-line2); }
.gpo-fact { padding: 10px 11px; border-right: 1px solid var(--gpo-line2); min-width: 0; }
.gpo-fact:last-child { border-right: 0; }
.gpo-fact b { display: block; font: 700 18px/1.35 var(--gpo-mono); word-break: break-all; }
.gpo-fact span { font-size: 10.5px; color: var(--gpo-ink3); }
.gpo-fact--hot b { color: var(--gpo-orange); }

.gpo-scale-box { background: var(--gpo-card2); border-left: 1px solid var(--gpo-line); padding: 18px 18px 13px; display: flex; flex-direction: column; justify-content: center; }
.gpo-scale-head { display: flex; justify-content: space-between; align-items: baseline; border-bottom: 2px solid var(--gpo-steel); padding-bottom: 9px; }
.gpo-scale-head b { font-size: 13px; }
.gpo-scale-head span { font: 10.5px var(--gpo-mono); color: var(--gpo-ink3); }
.gpo-scale { padding: 24px 2px 12px; }
.gpo-scale-track { height: 14px; background: linear-gradient(90deg, var(--gpo-green-soft), var(--gpo-steel-soft), var(--gpo-orange-soft)); border: 1px solid var(--gpo-line); position: relative; }
.gpo-scale-seg { position: absolute; top: 0; bottom: 0; width: 1px; background: var(--gpo-line); }
.gpo-scale-cursor { position: absolute; top: -9px; width: 3px; height: 32px; background: var(--gpo-orange); transition: left .35s; }
.gpo-scale-cursor::after { content: attr(data-label); position: absolute; top: -21px; left: 50%; transform: translateX(-50%); font: 700 10px var(--gpo-mono); color: var(--gpo-orange); white-space: nowrap; }
.gpo-scale-marks { display: flex; justify-content: space-between; margin-top: 9px; font: 10px var(--gpo-mono); color: var(--gpo-ink3); }
.gpo-scale-levels { display: grid; gap: 6px; margin-top: 14px; }
.gpo-level { display: flex; align-items: center; gap: 9px; font-size: 11.5px; color: var(--gpo-ink2); }
.gpo-level i { width: 9px; height: 9px; border-radius: 50%; flex: 0 0 auto; }
.gpo-level.is-on { color: var(--gpo-ink); font-weight: 700; }
.gpo-scale-note { font-size: 10.5px; color: var(--gpo-ink3); line-height: 1.7; border-top: 1px solid var(--gpo-line); padding-top: 9px; }

.gpo-quick { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 16px 0 22px; padding: 11px 14px; background: var(--gpo-card); border: 1px solid var(--gpo-line); }
.gpo-quick-label { font-size: 12px; color: var(--gpo-ink3); font-weight: 700; }
.gpo-chip { border: 1px solid var(--gpo-line); background: var(--gpo-card2); color: var(--gpo-ink2); border-radius: 2px; padding: 5px 12px; font: 600 11.5px var(--gpo-mono); cursor: pointer; }
.gpo-chip:hover { border-color: var(--gpo-orange); color: var(--gpo-orange); }

.gpo-body { display: grid; grid-template-columns: minmax(0, 350px) minmax(0, 1fr); gap: 20px; align-items: start; }
.gpo-body > * { min-width: 0; }
.gpo-panel, .gpo-card, .gpo-verdict { background: var(--gpo-card); border: 1px solid var(--gpo-line); box-shadow: var(--gpo-shadow); }
.gpo-panel { padding: 18px 19px; position: sticky; top: 16px; }
.gpo-panel-head { display: flex; justify-content: space-between; align-items: baseline; border-bottom: 2px solid var(--gpo-steel); padding-bottom: 8px; margin-bottom: 10px; }
.gpo-panel-head--sub { margin-top: 20px; border-bottom-width: 1px; }
.gpo-panel-head h2 { font-size: 15.5px; margin: 0; }
.gpo-panel-head span { font: 10.5px var(--gpo-mono); color: var(--gpo-ink3); }
.gpo-hint { font-size: 11.5px; line-height: 1.8; color: var(--gpo-ink3); margin: 0 0 12px; }
.gpo-hint--tight { margin: 10px 0 0; }
.gpo-fields { display: grid; gap: 13px; }
.gpo-field-label { display: block; font-size: 12px; font-weight: 700; margin-bottom: 6px; }
.gpo-seg { display: grid; grid-template-columns: 1fr 1fr; gap: 5px; }
.gpo-seg button { border: 1px solid var(--gpo-line); background: var(--gpo-card2); color: var(--gpo-ink2); border-radius: 2px; padding: 7px 4px; font: 600 11.5px inherit; font-family: inherit; cursor: pointer; }
.gpo-seg button.is-on { background: var(--gpo-steel); border-color: var(--gpo-steel); color: #fff; }
:root[data-theme="dark"] .gpo-seg button.is-on { color: #08141f; }
.gpo-checks { display: grid; gap: 6px; }
.gpo-check { display: flex; align-items: flex-start; gap: 8px; font-size: 11.5px; color: var(--gpo-ink2); cursor: pointer; line-height: 1.7; }
.gpo-check input { margin: 4px 0 0; accent-color: var(--gpo-orange); }

.gpo-result { display: grid; gap: 15px; }
.gpo-verdict { display: flex; align-items: center; gap: 16px; padding: 16px 19px; border-left: 4px solid var(--gpo-line); }
.gpo-verdict.is-high { border-left-color: var(--gpo-red); }
.gpo-verdict.is-mid { border-left-color: var(--gpo-orange); }
.gpo-verdict.is-low { border-left-color: var(--gpo-green); }
.gpo-verdict-no { width: 56px; height: 56px; flex: 0 0 auto; display: grid; place-items: center; background: var(--gpo-steel-soft); color: var(--gpo-steel); font: 700 20px var(--gpo-mono); border: 1px solid var(--gpo-line); }
.gpo-verdict.is-high .gpo-verdict-no { background: var(--gpo-red-soft); color: var(--gpo-red); }
.gpo-verdict-copy { min-width: 0; }
.gpo-verdict-tag { display: inline-block; font: 600 11px var(--gpo-mono); color: var(--gpo-steel); background: var(--gpo-steel-soft); padding: 2px 9px; margin-bottom: 6px; }
.gpo-verdict-copy h2 { font-size: 16px; margin: 0 0 4px; }
.gpo-verdict-copy p { margin: 0; font-size: 12.5px; color: var(--gpo-ink2); line-height: 1.85; }
.gpo-card { padding: 16px 19px; }
.gpo-card-head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; border-bottom: 1px solid var(--gpo-line2); padding-bottom: 10px; margin-bottom: 12px; }
.gpo-card-head h2 { font-size: 15px; margin: 0; }
.gpo-mini { font: 10.5px var(--gpo-mono); color: var(--gpo-ink3); white-space: nowrap; }
.gpo-tiers { display: grid; gap: 9px; }
.gpo-tier { border: 1px solid var(--gpo-line); border-left: 4px solid var(--gpo-line); padding: 10px 12px; background: var(--gpo-card2); }
.gpo-tier.is-on { border-left-color: var(--gpo-steel); }
.gpo-tier.is-extra { border-left-color: var(--gpo-orange); }
.gpo-tier b { font-size: 12.5px; }
.gpo-tier span { float: right; font: 600 10.5px var(--gpo-mono); color: var(--gpo-ink3); }
.gpo-tier p { margin: 3px 0 0; font-size: 11.5px; color: var(--gpo-ink2); line-height: 1.75; }
.gpo-duties { display: grid; gap: 6px; }
.gpo-duty { display: flex; align-items: flex-start; gap: 9px; border: 1px solid var(--gpo-line); padding: 8px 10px; font-size: 12.5px; cursor: pointer; }
.gpo-duty input { margin: 4px 0 0; accent-color: var(--gpo-steel); }
.gpo-duty.is-done { background: var(--gpo-card2); color: var(--gpo-ink3); text-decoration: line-through; }
.gpo-duty small { display: block; color: var(--gpo-ink3); font-size: 10.5px; line-height: 1.7; }
.gpo-empty { font-size: 12.5px; color: var(--gpo-ink3); margin: 0; }
.gpo-table-scroll { overflow-x: auto; }
.gpo-table { width: 100%; border-collapse: collapse; font-size: 12px; }
.gpo-table th, .gpo-table td { text-align: left; padding: 8px 9px; border-bottom: 1px solid var(--gpo-line2); vertical-align: top; }
.gpo-table th { font-size: 11px; color: var(--gpo-ink3); white-space: nowrap; }
.gpo-table td { color: var(--gpo-ink2); line-height: 1.7; word-break: break-all; }
.gpo-table .num { text-align: right; font-family: var(--gpo-mono); color: var(--gpo-steel); }
.gpo-del { border: 0; background: transparent; color: var(--gpo-red); cursor: pointer; font-size: 12px; }
.gpo-toolbar { display: flex; flex-wrap: wrap; gap: 9px; }

.gpo-modal { position: fixed; inset: 0; z-index: 900; display: flex; align-items: center; justify-content: center; background: rgba(8, 22, 34, .62); padding: 20px; }
.gpo-modal[hidden] { display: none !important; }
.gpo-sheet { width: min(520px, 100%); background: var(--gpo-card); border: 1px solid var(--gpo-line); border-top: 4px solid var(--gpo-steel); padding: 23px 25px; box-shadow: var(--gpo-shadow); }
.gpo-sheet h3 { font-size: 17.5px; margin: 0 0 8px; }
.gpo-sheet p { font-size: 12.5px; color: var(--gpo-ink2); line-height: 1.85; margin: 0 0 14px; }
.gpo-sheet-code { display: block; word-break: break-all; background: var(--gpo-card2); border: 1px solid var(--gpo-line); padding: 10px 11px; font: 11px/1.7 var(--gpo-mono); color: var(--gpo-steel); max-height: 110px; overflow: auto; }
.gpo-sheet-actions { display: flex; gap: 9px; margin-top: 16px; }
.gpo-toast { position: fixed; left: 50%; bottom: 30px; transform: translate(-50%, 12px); z-index: 950; background: var(--gpo-steel); color: #fff; border-radius: 2px; padding: 9px 18px; font-size: 12.5px; opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; }
.gpo-toast.is-on { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 980px) {
    .gpo-hero, .gpo-body { grid-template-columns: minmax(0, 1fr); }
    .gpo-scale-box { border-left: 0; border-top: 1px solid var(--gpo-line); }
    .gpo-panel { position: static; }
}
@media (max-width: 600px) {
    .gpo-wrap { padding: 0 14px; }
    .gpo-hero-copy, .gpo-panel, .gpo-card, .gpo-verdict { padding: 15px 13px; }
    .gpo-hero h1 { font-size: 25px; }
    .gpo-sub { font-size: 13px; }
    .gpo-form-line { flex-direction: column; align-items: stretch; gap: 4px; }
    .gpo-label { flex: none; }
    .gpo-fact b { font-size: 13px; }
    .gpo-table { min-width: 0; font-size: 10.5px; }
    .gpo-table th, .gpo-table td { padding: 6px 4px; }
}
@media print {
    .gpo-page { background: #fff; }
    .gpo-hero-form, .gpo-quick, .gpo-toolbar, .gpo-modal, .gpo-toast, .tskb { display: none !important; }
    .gpo-body { grid-template-columns: 1fr; }
    .gpo-panel, .gpo-card, .gpo-verdict, .gpo-hero { box-shadow: none; break-inside: avoid; }
}