/* 纸面、明确状态与单题阅读；不引入字体、3D或装饰动画。 */
.decision-page { --ds-soft:#eeeade; --ds-accent:#edc84c; }
.ds-shell { padding-top:42px; padding-bottom:40px; }
.ds-header-links { display:flex; gap:24px; font-size:13px; }
.ds-header-links a { min-height:44px; display:inline-flex; align-items:center; }
.ds-kicker { color:var(--muted); font-size:12px; letter-spacing:.08em; margin-bottom:16px; }
.ds-intro { display:grid; grid-template-columns:1.1fr 1fr; gap:32px 64px; align-items:center; }
.ds-intro h1 { font-size:clamp(34px,4vw,52px); line-height:1.25; margin-bottom:22px; }
.ds-deck { font-size:17px; max-width:27em; color:var(--muted); }
.ds-facts { display:flex; flex-wrap:wrap; gap:24px 32px; margin:28px 0; }
.ds-facts div { padding-right:24px; border-right:1px solid var(--line); }
.ds-facts div:last-child { border:0; padding-right:0; }
.ds-facts dt { font-size:22px; font-weight:800; line-height:1.5; }.ds-facts dd { margin:0; font-size:12px; color:var(--muted); }
.ds-button,.ds-outline { border:1px solid var(--ink); border-radius:0; min-height:48px; padding:11px 22px; display:inline-flex; gap:24px; justify-content:center; align-items:center; cursor:pointer; font:inherit; font-size:14px; font-weight:700; text-decoration:none; }
.ds-button { color:var(--ink); background:var(--ds-accent); }.ds-outline { color:var(--ink); background:transparent; }
.ds-button:hover:not(:disabled),.ds-outline:hover:not(:disabled) { background:var(--ink); color:var(--paper); text-decoration:none; }
.ds-button:disabled,.ds-outline:disabled { opacity:.5; cursor:default; }
.ds-small { font-size:12px; color:var(--muted); margin:16px 0 0; }
.ds-illustration { margin:0; text-align:center; }.ds-illustration img { width:100%; max-width:400px; height:auto; aspect-ratio:1; object-fit:contain; }
.ds-illustration figcaption { font-size:12px; color:var(--muted); margin-top:4px; }
.ds-intro-foot { grid-column:1/-1; border-top:1px solid var(--line); padding-top:20px; font-size:13px; color:var(--muted); }
.ds-intro-foot > p { margin-bottom:12px; max-width:65em; }
.ds-details summary { cursor:pointer; min-height:44px; display:list-item; padding:8px 0; font-weight:600; color:var(--ink); }
.ds-details p { max-width:65em; line-height:1.8; }.ds-details > div { padding:12px 0; }
.ds-local { border-top:1px solid var(--line); margin-top:28px; padding-top:18px; font-size:13px; }
.ds-local label { display:inline-flex; gap:10px; align-items:center; min-height:44px; }.ds-local input { width:19px; height:19px; accent-color:var(--ink); flex-shrink:0; }
.ds-local p { margin:0; color:var(--muted); font-size:12px; }
.ds-notice { font-size:13px; margin:12px 0 0; min-height:1.7em; overflow-wrap:anywhere; }
.ds-quiz { max-width:800px; margin:auto; }.ds-progress-line { display:flex; justify-content:space-between; gap:20px; font-size:13px; color:var(--muted); margin-bottom:10px; }
.ds-progress { display:block; height:5px; width:100%; border:0; background:var(--ds-soft); accent-color:var(--ink); }
.ds-progress::-webkit-progress-bar { background:var(--ds-soft); }.ds-progress::-webkit-progress-value { background:var(--ink); }.ds-progress::-moz-progress-bar { background:var(--ink); }
.ds-question-form fieldset { margin:32px 0 0; padding:0; border:0; min-width:0; width:100%; }
.ds-question-form legend { display:block; width:100%; padding:0; font-size:clamp(22px,3vw,31px); font-weight:700; line-height:1.5; }
.ds-question-form legend small { display:block; font-size:12px; color:var(--muted); font-weight:400; margin-bottom:12px; }
.ds-endpoints { display:grid; grid-template-columns:1fr 1fr; gap:36px; margin:24px 0 22px; font-size:15px; line-height:1.8; }
.ds-endpoints p { margin:0; padding:16px 0; border-top:1px solid var(--line); }.ds-endpoints p:last-child { text-align:right; }
.ds-endpoints b { display:block; font-size:11px; letter-spacing:.06em; color:var(--muted); margin-bottom:4px; }
.ds-options { display:grid; grid-template-columns:repeat(5,minmax(0,1fr)); gap:12px; }
.ds-choice { position:relative; min-height:106px; display:flex; align-items:center; justify-content:center; flex-direction:column; gap:9px; border:1px solid var(--line); padding:16px 5px; cursor:pointer; text-align:center; }
.ds-choice input { margin:0; width:24px; height:24px; accent-color:var(--ink); }.ds-choice span { font-size:12px; }.ds-choice.is-selected { background:var(--ds-accent); border-color:var(--ink); }
.ds-choice:focus-within { outline:2px solid var(--ink); outline-offset:3px; }.ds-choice:hover { border-color:var(--ink); }
.ds-controls { display:flex; justify-content:space-between; gap:12px; margin-top:28px; flex-wrap:wrap; }
.ds-question-nav { display:flex; flex-wrap:wrap; gap:6px; margin-top:32px; }
.ds-question-nav button { width:36px; height:36px; border:1px solid var(--line); background:transparent; color:var(--muted); cursor:pointer; font:inherit; font-size:12px; }
.ds-question-nav .is-answered { background:var(--ds-soft); color:var(--ink); }.ds-question-nav [aria-current] { border:2px solid var(--ink); font-weight:700; }
.ds-result-header { display:grid; grid-template-columns:minmax(0,1fr) 300px; gap:30px; padding-bottom:30px; border-bottom:1px solid var(--ink); }
.ds-result-header h1 { margin-bottom:16px; font-size:clamp(31px,4vw,43px); }.ds-result-header p { max-width:39em; }
.ds-result-code { display:flex; flex-wrap:wrap; gap:6px; margin:18px 0; }.ds-result-code span { display:flex; width:48px; height:52px; align-items:center; justify-content:center; border:1px solid var(--ink); font-size:28px; font-weight:800; }
.ds-result-header img { width:100%; max-width:280px; height:auto; margin:auto; align-self:center; }
.ds-result-layout { display:grid; grid-template-columns:minmax(0,1fr) minmax(0,1fr); gap:40px 56px; margin-top:30px; }
.ds-result-layout h2,.ds-contribute h2 { font-size:22px; margin-bottom:16px; }
.ds-dimension { padding:16px 0; border-bottom:1px solid var(--line); }.ds-dimension:first-of-type { padding-top:0; }
.ds-dimension-heading { display:flex; justify-content:space-between; gap:16px; font-size:13px; }.ds-dimension-heading strong { font-weight:600; }.ds-dimension-heading span { color:var(--muted); text-align:right; }
.ds-meter { height:8px; background:var(--ds-soft); display:flex; margin:12px 0 8px; }.ds-meter span { background:var(--ink); }.ds-meter span:last-child { background:var(--ds-accent); }
.ds-meter-labels { display:flex; justify-content:space-between; gap:12px; font-size:12px; color:var(--muted); }
.ds-advice { padding:0 0 0 20px; font-size:14px; }.ds-advice li { padding:0 0 16px 6px; }.ds-training-link { display:block; border-top:1px solid var(--line); padding:16px 0; font-weight:700; font-size:14px; }
.ds-actions { display:flex; flex-wrap:wrap; gap:10px; margin:24px 0 18px; }.ds-actions .ds-outline { font-weight:500; }
.ds-extra-entry { grid-column:1/-1; display:flex; justify-content:space-between; align-items:center; gap:24px; border-top:1px solid var(--line); padding-top:20px; }
.ds-extra-entry p { font-size:11px; color:var(--muted); margin:0 0 7px; }.ds-extra-entry h2 { font-size:20px; margin:0 0 6px; }.ds-extra-entry span { font-size:12px; color:var(--muted); }
.ds-extra-entry>a { min-height:44px; display:inline-flex; align-items:center; font-size:13px; font-weight:700; text-decoration:underline; white-space:nowrap; }
@media(max-width:620px) { .ds-extra-entry { align-items:flex-start; flex-direction:column; gap:10px; } }
.ds-share-box { padding:18px; border:1px solid var(--line); margin:16px 0; }.ds-share-box input { display:block; width:100%; min-height:44px; background:var(--paper); color:var(--ink); border:1px solid var(--line); padding:10px; font:inherit; font-size:12px; }
.ds-contribute { border-top:1px solid var(--ink); margin-top:32px; padding-top:24px; }.ds-contribute > p { font-size:14px; color:var(--muted); max-width:65em; }
.ds-form-fields { display:grid; grid-template-columns:1fr 1fr; gap:18px; margin:22px 0 12px; }.ds-form-fields label { font-size:13px; }
.ds-form-fields input { display:block; width:100%; min-height:46px; border:1px solid var(--line); padding:10px 12px; margin-top:6px; font:inherit; font-size:14px; color:var(--ink); background:transparent; border-radius:0; }
.ds-form-fields input:disabled { background:var(--ds-soft); }.ds-consent { display:flex; align-items:flex-start; gap:10px; font-size:13px; margin:18px 0; line-height:1.8; }
.ds-consent input { width:19px; height:19px; margin-top:3px; accent-color:var(--ink); flex-shrink:0; }
.ds-receipts { border-top:1px solid var(--line); margin-top:24px; padding-top:18px; }.ds-receipts summary { cursor:pointer; min-height:44px; padding:8px 0; font-size:14px; }
.ds-receipt { padding:18px 0; border-bottom:1px solid var(--line); }.ds-receipt p { font-size:13px; margin-bottom:10px; }.ds-receipt .ds-outline { min-height:44px; padding:7px 13px; margin:0 8px 8px 0; font-size:12px; }
.ds-answer-review { margin:0; padding-left:20px; }.ds-answer-review li { padding:8px 0; font-size:13px; }.ds-answer-review button { border:0; border-bottom:1px solid var(--ink); background:transparent; color:var(--ink); font:inherit; min-height:44px; cursor:pointer; margin-left:12px; }
.ds-shared-preview { border-left:3px solid var(--ds-accent); padding:12px 18px; margin-top:12px; color:var(--ink); }
@media(max-width:820px) { .ds-intro { gap:24px 28px; }.ds-result-header { grid-template-columns:minmax(0,1fr) 190px; }.ds-result-layout { gap:32px; }.ds-header-links { gap:18px; } }
@media(max-width:560px) {
 .ds-shell { padding-top:26px; }.ds-intro { grid-template-columns:1fr; gap:24px; }.ds-intro h1 { font-size:36px; }.ds-illustration img { max-width:260px; }.ds-intro-foot { grid-column:1; }
 .ds-facts { gap:16px; }.ds-facts div { padding-right:16px; }.ds-facts dt { font-size:19px; }.ds-header-links { gap:14px; font-size:12px; }.ds-header-links a:last-child { display:none; }
 .ds-result-header { grid-template-columns:1fr; gap:12px; }.ds-result-header img { max-width:180px; }.ds-result-layout,.ds-form-fields { grid-template-columns:1fr; gap:26px; }
 .ds-options { gap:5px; }.ds-choice { padding:14px 2px; min-height:102px; }.ds-choice span { font-size:11px; max-width:3em; }.ds-endpoints { gap:20px; font-size:14px; }
 .ds-controls .ds-button,.ds-controls .ds-outline { padding:10px 16px; }.ds-result-code span { width:43px; height:48px; }
 .ds-question-nav { gap:5px; }.ds-question-nav button { width:44px; height:44px; }
}
@media(prefers-reduced-motion:reduce) { .decision-page * { scroll-behavior:auto; } }

/* M2 校园调查：双入口、同步状态与身份标记（沿用纸面/炭黑/警示黄，无渐变） */
.ds-entry-actions { display:flex; flex-wrap:wrap; gap:12px; margin:4px 0 0; }
.ds-entry-actions .ds-button,.ds-entry-actions .ds-outline { flex:1 1 240px; }
.ds-survey-consent { margin-top:14px; }
.ds-survey-note { margin-top:8px; }
.rp-sync { margin:22px 0 0; padding:10px 14px; border:1px solid var(--line); font-size:12px; color:var(--muted); }
.rp-sync b { color:var(--ink); }
.rp-sync-pending { border-color:var(--ink); }
.rp-sync-saved { border-left:4px solid var(--ds-accent); }
.rp-sync-failed { border-left:4px solid var(--ink); background:var(--ds-soft); }
.rp-card { border-top:1px solid var(--ink); margin-top:30px; padding-top:22px; }
.rp-card h2 { font-size:20px; margin-bottom:12px; }
.rp-card form { margin-top:8px; }
.rp-card .ds-outline { min-height:44px; padding:8px 16px; font-size:13px; }
.rp-badge { display:inline-block; border:1px solid var(--ink); padding:2px 10px; font-size:12px; font-weight:700; }
.rp-badge-verified { background:var(--ds-accent); }
.rp-badge-pending,.rp-badge-self_declared { background:var(--ds-soft); }
#rp-nick { display:block; width:100%; max-width:320px; min-height:44px; border:1px solid var(--line); padding:10px; margin:8px 0 12px; font:inherit; font-size:14px; color:var(--ink); background:var(--paper); }
@media(max-width:560px) { .ds-entry-actions { flex-direction:column; } }