:root {
  --ink: #18283b;
  --ink-2: #31445a;
  --paper: #f6f1e7;
  --paper-2: #eee5d4;
  --card: #fffdf8;
  --bronze: #9a6837;
  --gold: #d8ae67;
  --red: #8f3b32;
  --green: #2f6d61;
  --blue: #2b5a82;
  --line: rgba(24,40,59,.14);
  --shadow: 0 18px 50px rgba(24,40,59,.12);
  --radius: 22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",system-ui,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
img{display:block;max-width:100%}
button,a{font:inherit}
a{color:inherit;text-decoration:none}
.topbar{position:sticky;top:0;z-index:80;height:72px;padding:0 max(20px,calc((100vw - 1200px)/2));display:flex;align-items:center;justify-content:space-between;background:rgba(246,241,231,.94);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:12px}.brand-mark{display:grid;place-items:center;width:44px;height:44px;border-radius:13px;background:var(--ink);color:white;font-weight:800}.brand strong{display:block;font-size:18px}.brand small{display:block;color:#6d7782;font-size:12px}.topnav{display:flex;align-items:center;gap:24px}.topnav a{font-weight:700;font-size:14px;color:#46576a}.topnav a:hover{color:var(--red)}.menu-toggle{display:none;border:0;background:transparent;font-size:26px;color:var(--ink)}
.hero{min-height:720px;position:relative;display:flex;align-items:flex-end;overflow:hidden;background:#0c1521}.hero>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,16,28,.91) 0%,rgba(8,16,28,.68) 44%,rgba(8,16,28,.18) 78%),linear-gradient(0deg,rgba(8,16,28,.75),transparent 55%)}.hero-content{position:relative;z-index:2;width:min(1200px,calc(100% - 40px));margin:0 auto;padding:110px 0 90px;color:white}.eyebrow{display:inline-block;padding:7px 12px;border:1px solid rgba(255,255,255,.3);border-radius:999px;font-size:13px;letter-spacing:.08em}.hero h1{font-family:STKaiti,KaiTi,serif;font-size:clamp(58px,8vw,106px);line-height:1;margin:32px 0 12px;letter-spacing:.06em}.hero-question{font-size:clamp(24px,3vw,38px);margin:0 0 20px;color:#f0d49e;font-weight:800}.hero-intro{max-width:680px;font-size:18px;color:rgba(255,255,255,.86)}.hero-actions{display:flex;gap:14px;margin-top:34px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 23px;border-radius:13px;font-weight:800}.btn.primary{background:#e4b86e;color:#17263a}.btn.ghost{border:1px solid rgba(255,255,255,.55);color:white}.art-note{margin-top:40px;font-size:12px;color:rgba(255,255,255,.62)}
.progress-strip{position:relative;z-index:5;margin:-32px auto 0;width:min(1080px,calc(100% - 40px));display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:22px;padding:22px 26px;background:white;border-radius:18px;box-shadow:var(--shadow)}.progress-strip>div:first-child{display:flex;gap:12px;align-items:baseline}.progress-strip span{color:#687585;font-size:13px}.progress-strip strong{font-size:24px}.progress-track{height:10px;border-radius:99px;background:#e7e2d8;overflow:hidden}.progress-track span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--bronze),var(--gold));transition:width .35s}.text-button{border:0;background:transparent;color:var(--red);cursor:pointer}
.section{width:min(1180px,calc(100% - 40px));margin:0 auto;padding:96px 0}.section.alt{width:100%;max-width:none;padding-left:max(20px,calc((100vw - 1180px)/2));padding-right:max(20px,calc((100vw - 1180px)/2));background:#efe7d9}.section-heading{display:flex;gap:20px;align-items:flex-start;margin-bottom:40px}.chapter{font-family:Georgia,serif;font-size:44px;color:#b7a78c;line-height:1}.kicker{margin:0 0 2px;text-transform:uppercase;letter-spacing:.15em;font-size:12px;font-weight:800;color:var(--bronze)}.section h2{font-size:clamp(32px,5vw,54px);line-height:1.18;margin:0}.section h3{line-height:1.3}.location-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.info-card{padding:24px;background:var(--card);border:1px solid var(--line);border-radius:18px}.info-card span{font-size:12px;color:var(--bronze);font-weight:800}.info-card strong{display:block;font-size:23px;margin:6px 0}.info-card p{margin:0;color:#66717d;font-size:14px}.map-panel{display:grid;grid-template-columns:.8fr 1.2fr;align-items:center;gap:30px;margin-top:28px;padding:28px 32px;background:#192b40;color:white;border-radius:var(--radius);overflow:hidden}.map-panel p{color:#cbd3dc}.map-panel .kicker{color:#e5bd75}.state-dot circle{fill:#9a493c;stroke:#ffd893;stroke-width:4}.state-dot text{fill:white;font-weight:900;font-size:24px;text-anchor:middle}.state-dot.muted circle{fill:#536477;stroke:#98a7b8}.state-dot.muted text{font-size:18px}.west-label{fill:#d8ae67;font-size:16px;font-weight:800}.core-question{margin-top:28px;padding:28px;border-left:6px solid var(--red);background:#fffaf1;border-radius:0 18px 18px 0}.core-question span{font-size:12px;font-weight:900;color:var(--red)}.core-question p{font-size:22px;font-weight:800;margin:5px 0 0}.complete-btn{display:block;margin:36px 0 0 auto;border:1px solid var(--ink);border-radius:999px;padding:10px 18px;background:transparent;color:var(--ink);font-weight:800;cursor:pointer}.complete-btn.done{background:var(--green);color:white;border-color:var(--green)}
.cause-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.cause-card{background:white;border-radius:18px;padding:24px;box-shadow:0 8px 24px rgba(32,42,50,.06);border-top:4px solid var(--gold)}.cause-card span{font-size:12px;background:#f0e5cf;padding:4px 8px;border-radius:999px;color:#73502c}.cause-card h3{font-size:20px;margin:15px 0 8px}.cause-card p{font-size:14px;color:#66717d;margin:0}.media-pair{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:28px}.media-pair figure{margin:0;border-radius:18px;overflow:hidden;background:white}.media-pair img{width:100%;aspect-ratio:16/9;object-fit:cover}.media-pair figcaption{padding:12px 16px;color:#596779;font-size:13px}.warning-card{margin-top:20px;padding:20px 24px;border-radius:14px;background:#fff4e7;border:1px solid #e3c49f;color:#65482d}
.people-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.person-card{display:grid;grid-template-columns:42% 58%;background:white;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}.person-card img{width:100%;height:100%;object-fit:cover}.person-copy{padding:28px}.person-copy .role{display:inline-block;padding:4px 9px;border-radius:999px;background:#e9dfcb;color:#744e2d;font-size:12px;font-weight:800}.person-copy h3{font-family:STKaiti,KaiTi,serif;font-size:36px;margin:14px 0 0}.person-copy small{color:#7a8490}.person-copy p{color:#566474}.detail-link{border:0;background:none;color:var(--red);font-weight:800;padding:0;cursor:pointer}.relation-line{margin-top:30px;display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap}.relation-node{min-width:190px;padding:16px 20px;text-align:center;background:#e8dfcf;border-radius:14px;font-weight:900}.relation-node small{display:block;font-weight:500;color:#63707c}.relation-node.accent{background:#8f3b32;color:white}.relation-node.accent small{color:#f4d7cf}.relation-arrow{font-size:30px;color:#a27548}
.filter-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:24px}.filter{padding:8px 15px;border-radius:999px;border:1px solid var(--line);background:white;color:#4c5b6c;cursor:pointer}.filter.active{background:var(--ink);color:white}.measure-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.measure-card{position:relative;background:white;border-radius:18px;overflow:hidden;border:1px solid var(--line);cursor:pointer;transition:.2s;min-height:390px}.measure-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.measure-card img{width:100%;height:180px;object-fit:cover}.measure-body{padding:18px}.category{display:inline-flex;padding:3px 8px;border-radius:99px;font-size:11px;font-weight:900}.category.政治{background:#e9e3f3;color:#593b82}.category.经济{background:#dceee7;color:#246152}.category.军事{background:#f2ded9;color:#8a352e}.measure-body h3{font-size:19px;margin:10px 0 7px}.measure-body p{margin:0;color:#627080;font-size:14px}.hint-box{margin-top:20px;text-align:center;color:#6e7985;font-size:13px}
.event-cover{position:relative;min-height:420px;border-radius:var(--radius);overflow:hidden;display:flex;align-items:flex-end}.event-cover img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.event-cover:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(9,16,27,.88),rgba(9,16,27,.1) 70%)}.event-cover div{position:relative;z-index:2;color:white;padding:40px;max-width:680px}.event-cover span{font-size:12px;letter-spacing:.13em;color:#edc889}.event-cover h3{font-size:44px;margin:8px 0}.event-cover p{color:#e1e6ec}.timeline{position:relative;margin-top:40px;padding-left:34px}.timeline:before{content:"";position:absolute;left:10px;top:0;bottom:0;width:3px;background:#c5b18f}.time-item{position:relative;display:grid;grid-template-columns:220px 1fr;gap:24px;margin-bottom:24px;background:white;border-radius:18px;padding:18px;border:1px solid var(--line)}.time-item:before{content:"";position:absolute;left:-31px;top:32px;width:17px;height:17px;border-radius:50%;background:var(--red);border:4px solid var(--paper)}.time-item img{width:220px;height:125px;object-fit:cover;border-radius:12px}.time-copy span{color:var(--bronze);font-weight:900;font-size:13px}.time-copy h3{margin:3px 0}.time-copy p{margin:0;color:#687585}
.impact-layout{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:stretch}.impact-image{border-radius:var(--radius);overflow:hidden}.impact-image img{width:100%;height:100%;object-fit:cover}.impact-copy{background:white;border-radius:var(--radius);padding:30px}.impact-copy>p{font-size:17px}.impact-copy .cost{padding:14px;background:#fff1ed;border-left:4px solid var(--red);font-size:14px}.impact-copy ol{padding-left:24px;color:#566474}.three-judgements{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:24px}.three-judgements article{padding:24px;border-radius:18px;background:white;border:1px solid var(--line)}.three-judgements span{font-size:12px;color:var(--bronze);font-weight:900}.three-judgements strong{display:block;font-size:22px;margin:7px 0}.three-judgements p{margin:0;color:#697584;font-size:14px}
.evidence-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:24px}.evidence-image{margin:0;border-radius:var(--radius);overflow:hidden;background:white}.evidence-image img{width:100%;height:100%;min-height:420px;object-fit:cover}.evidence-image figcaption{padding:10px 16px;font-size:12px;color:#7c8792}.source-card{padding:30px;border-radius:var(--radius);background:#18283b;color:white}.source-top{display:flex;justify-content:space-between;gap:20px;align-items:flex-start}.source-top span{font-size:11px;padding:5px 8px;border-radius:999px;background:#8c4b39}.source-top strong{font-size:20px}.source-card dt{font-size:11px;color:#d0aa6b;margin-top:16px}.source-card dd{margin:3px 0 0;color:#dbe2e9}.source-card>p{margin-top:24px;padding-top:20px;border-top:1px solid rgba(255,255,255,.16)}.proof-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:22px}.proof-grid article{padding:24px;border-radius:18px}.proof-grid .can{background:#e4f0e9}.proof-grid .cannot{background:#f5e5e2}.proof-grid li{margin-bottom:7px}.myth-list{margin-top:24px;display:grid;grid-template-columns:1fr 1fr;gap:14px}.myth-item{padding:18px;background:white;border-radius:14px;border:1px solid var(--line)}.myth-item strong{display:block;color:var(--red)}.myth-item p{margin:6px 0 0;color:#657282;font-size:14px}
.games-section{width:100%;max-width:none;background:#18283b;color:white;padding-left:max(20px,calc((100vw - 1180px)/2));padding-right:max(20px,calc((100vw - 1180px)/2))}.section-heading.light .chapter{color:#718198}.section-heading.light .kicker{color:#d8ae67}.games-lead{color:#bcc7d2;margin-top:-20px}.game-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.game-card{position:relative;min-height:300px;border-radius:20px;overflow:hidden;cursor:pointer;border:1px solid rgba(255,255,255,.12);background:#0f1b2a}.game-card img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}.game-card:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(8,15,24,.96),rgba(8,15,24,.08) 75%)}.game-card div{position:absolute;z-index:2;left:0;right:0;bottom:0;padding:24px}.game-card h3{font-size:24px;margin:0 0 5px}.game-card p{margin:0;color:#cad3dd;font-size:13px}.game-card .score-pill{position:absolute;z-index:3;top:14px;right:14px;padding:4px 9px;border-radius:999px;background:rgba(8,15,24,.75);font-size:12px}.light-btn{border-color:white;color:white}
.profile-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:18px}.profile-card{padding:26px;background:white;border-radius:18px;border:1px solid var(--line)}.profile-card span{font-size:12px;color:#748090}.profile-card strong{display:block;font-size:34px;margin:8px 0}.profile-card p{margin:0;color:#657282;font-size:13px}.main-score{background:#18283b;color:white}.main-score p,.main-score span{color:#c8d1dc}.dimension-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.dimension-card{padding:18px;background:#ebe4d7;border-radius:15px}.dimension-card span{font-size:13px;font-weight:900}.dimension-card .mini-track{height:7px;margin-top:12px;background:#d2c7b4;border-radius:99px;overflow:hidden}.dimension-card .mini-track i{display:block;height:100%;background:var(--green)}.subheading{margin-top:38px}.recall-card{padding:28px;border-radius:18px;background:#fffaf0;border:1px solid #e3d0ab}.recall-card li{margin:8px 0}
footer{padding:50px 20px 100px;text-align:center;background:#101d2c;color:white}.footer p{color:#cbd3dc}.footer small{color:#8f9cac}.bottom-nav{display:none}
.modal{position:fixed;inset:0;z-index:120;display:none;align-items:center;justify-content:center;padding:22px;background:rgba(6,12,20,.72);backdrop-filter:blur(8px)}.modal.open{display:flex}.modal-panel{position:relative;width:min(760px,100%);max-height:88vh;overflow:auto;background:var(--paper);border-radius:24px;padding:32px;box-shadow:0 30px 90px rgba(0,0,0,.35)}.modal-close{position:sticky;float:right;top:0;z-index:2;width:42px;height:42px;border-radius:50%;border:0;background:#18283b;color:white;font-size:25px;cursor:pointer}.detail-hero{display:grid;grid-template-columns:220px 1fr;gap:24px}.detail-hero img{width:220px;height:280px;object-fit:cover;border-radius:16px}.detail-hero h2{font-size:40px;margin:12px 0}.boundary{margin-top:20px;padding:16px;border-left:5px solid var(--red);background:#fff1ed}.game-panel{width:min(900px,100%)}.game-head{padding-right:50px}.game-head h2{font-size:38px;margin-bottom:6px}.game-head p{color:#66717d}.game-work{margin-top:24px}.drag-bank{display:flex;gap:10px;flex-wrap:wrap}.drag-item{padding:9px 12px;border-radius:11px;background:white;border:1px solid var(--line);cursor:grab;font-weight:700}.drop-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:20px}.drop-zone{min-height:160px;padding:14px;border:2px dashed #b9ad98;border-radius:14px;background:#f4eee2}.drop-zone h4{margin:0 0 10px}.drop-zone .drag-item{margin:6px 0}.game-actions{display:flex;gap:10px;margin-top:20px}.game-actions button{padding:10px 16px;border-radius:10px;border:0;background:var(--ink);color:white;cursor:pointer}.game-actions button.secondary{background:#d9cfbe;color:var(--ink)}.game-feedback{margin-top:16px;padding:14px;border-radius:12px;background:#e9e4d9}.order-list{display:grid;gap:10px}.order-card{padding:13px 16px;background:white;border-radius:12px;border:1px solid var(--line);cursor:grab}.choice-list{display:grid;gap:10px}.choice{padding:12px 14px;border:1px solid var(--line);border-radius:11px;background:white;text-align:left;cursor:pointer}.choice.selected{border-color:var(--red);background:#fff1ed}.quiz-question{margin-bottom:22px}.quiz-question h4{font-size:18px}.narrator-box textarea{width:100%;min-height:180px;padding:16px;border-radius:14px;border:1px solid var(--line);resize:vertical;font:inherit}.rubric-result{margin-top:16px;display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.rubric-result span{padding:10px;border-radius:10px;background:#e8e0d2;text-align:center;font-size:13px}.rubric-result span.hit{background:#dceee7;color:#205c4e}
@media(max-width:980px){.topnav{position:absolute;top:72px;left:0;right:0;display:none;padding:14px 20px;background:var(--paper);border-bottom:1px solid var(--line);flex-wrap:wrap}.topnav.open{display:flex}.menu-toggle{display:block}.location-grid,.cause-grid,.measure-grid{grid-template-columns:repeat(2,1fr)}.people-grid{grid-template-columns:1fr}.game-grid{grid-template-columns:repeat(2,1fr)}.profile-grid{grid-template-columns:1fr 1fr}.main-score{grid-column:1/-1}.dimension-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:720px){body{padding-bottom:64px}.topbar{height:62px}.brand small{display:none}.hero{min-height:690px}.hero-shade{background:linear-gradient(0deg,rgba(8,16,28,.93),rgba(8,16,28,.35))}.hero-content{padding-bottom:65px}.hero h1{font-size:64px}.hero-actions{flex-direction:column;align-items:flex-start}.progress-strip{grid-template-columns:1fr auto}.progress-track{grid-column:1/-1;grid-row:2}.section,.section.alt,.games-section{padding-top:72px;padding-bottom:72px}.section-heading{gap:12px}.chapter{font-size:32px}.location-grid,.cause-grid,.measure-grid,.game-grid,.profile-grid,.dimension-grid,.proof-grid,.myth-list{grid-template-columns:1fr}.map-panel,.impact-layout,.evidence-layout{grid-template-columns:1fr}.media-pair{grid-template-columns:1fr}.person-card{grid-template-columns:38% 62%}.measure-card{min-height:0}.time-item{grid-template-columns:1fr}.time-item img{width:100%;height:auto}.three-judgements{grid-template-columns:1fr}.event-cover{min-height:480px}.event-cover div{padding:28px}.event-cover h3{font-size:36px}.bottom-nav{position:fixed;display:grid;grid-template-columns:repeat(5,1fr);z-index:90;left:0;right:0;bottom:0;height:62px;background:#132236;color:white;border-top:1px solid rgba(255,255,255,.12)}.bottom-nav a{display:grid;place-items:center;font-size:12px}.modal{padding:8px}.modal-panel{padding:22px 18px;border-radius:18px}.detail-hero{grid-template-columns:1fr}.detail-hero img{width:100%;height:330px}.drop-grid{grid-template-columns:1fr}.rubric-result{grid-template-columns:1fr 1fr}}

/* V0.1.1 mobile stability and feedback improvements */
.topbar,
.modal {
  -webkit-backdrop-filter: blur(16px);
}
.modal {
  -webkit-backdrop-filter: blur(8px);
}
.topnav {
  gap: 16px;
}
.measure-progress {
  display: grid;
  grid-template-columns: auto minmax(160px, 1fr) auto;
  gap: 16px;
  align-items: center;
  margin: 0 0 22px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: rgba(255,255,255,.72);
}
.measure-progress > div:first-child {
  display: flex;
  gap: 10px;
  align-items: baseline;
}
.measure-progress span,
.measure-progress small {
  color: #687585;
}
.measure-progress strong {
  font-size: 20px;
}
.measure-progress .mini-track {
  height: 8px;
  overflow: hidden;
  border-radius: 99px;
  background: #ded5c5;
}
.measure-progress .mini-track i {
  display: block;
  width: 0;
  height: 100%;
  background: var(--green);
  transition: width .25s ease;
}
.measure-card {
  position: relative;
}
.measure-card.seen {
  border-color: rgba(47,109,97,.45);
  box-shadow: 0 12px 32px rgba(47,109,97,.1);
}
.seen-mark {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 2;
  padding: 3px 8px;
  border-radius: 999px;
  background: #dceee7;
  color: #205c4e;
  font-size: 11px;
  font-weight: 800;
}
.profile-grid {
  grid-template-columns: 1.3fr repeat(3,1fr);
}
.dimension-card small {
  display: block;
  min-height: 38px;
  margin-top: 9px;
  color: #697584;
  font-size: 11px;
  line-height: 1.45;
}
.drag-item,
.order-card,
.drop-target,
.order-controls button,
.choice {
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}
.drag-item,
.order-card {
  user-select: none;
  -webkit-user-select: none;
}
.drag-item.selected,
.order-card.selected {
  border-color: var(--blue);
  background: #e8f1f8;
  box-shadow: 0 0 0 3px rgba(43,90,130,.15);
}
.drop-target.target-ready {
  border-color: var(--blue);
  background: #edf5fb;
}
.drag-item.answer-correct,
.order-card.position-correct {
  border-color: #4d927e;
  background: #dceee7;
}
.drag-item.answer-wrong,
.order-card.position-wrong {
  border-color: #b35b50;
  background: #f7e2de;
}
.order-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.order-card > div:first-child {
  min-width: 0;
}
.order-card small {
  color: #7b8793;
}
.order-controls {
  display: flex;
  flex: 0 0 auto;
  gap: 6px;
}
.order-controls button {
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #f1eadf;
  color: var(--ink);
  cursor: pointer;
  font-weight: 900;
}
.choice.correct,
.choice.correct-answer {
  border-color: #4d927e;
  background: #dceee7;
  color: #205c4e;
}
.choice.incorrect {
  border-color: #b35b50;
  background: #f7e2de;
  color: #7a3028;
}
.question-feedback {
  margin: 10px 0 0;
  padding: 11px 13px;
  border-radius: 10px;
  font-size: 13px;
}
.question-feedback.is-correct {
  background: #dceee7;
  color: #205c4e;
}
.question-feedback.is-wrong {
  background: #fff0dc;
  color: #76501f;
}
@media(max-width:980px) {
  .topnav {
    max-height: calc(100vh - 72px);
    overflow-y: auto;
  }
  .profile-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media(max-width:720px) {
  body {
    padding-bottom: 70px;
  }
  .measure-progress {
    grid-template-columns: 1fr auto;
  }
  .measure-progress .mini-track,
  .measure-progress small {
    grid-column: 1 / -1;
  }
  .profile-grid {
    grid-template-columns: 1fr;
  }
  .main-score {
    grid-column: auto;
  }
  .bottom-nav {
    display: flex;
    align-items: stretch;
    height: 64px;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x proximity;
    scrollbar-width: none;
  }
  .bottom-nav::-webkit-scrollbar {
    display: none;
  }
  .bottom-nav a {
    display: grid;
    flex: 0 0 72px;
    min-width: 72px;
    place-items: center;
    padding: 0 6px;
    scroll-snap-align: start;
    font-size: 12px;
    white-space: nowrap;
  }
  .drag-bank {
    min-height: 68px;
    padding: 10px;
    border: 2px dashed #b9ad98;
    border-radius: 14px;
  }
  .drag-item {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }
  .drop-zone {
    min-height: 112px;
  }
  .order-card {
    min-height: 62px;
  }
  .game-actions {
    flex-wrap: wrap;
  }
  .game-actions button {
    min-height: 44px;
  }
}


/* V0.1.2 course audio system */
.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
.topbar-controls{display:flex;align-items:center;gap:10px;flex:0 0 auto}.sound-toggle{display:inline-flex;align-items:center;gap:7px;min-height:38px;padding:7px 11px;border:1px solid var(--line);border-radius:999px;background:#fffdf8;color:var(--ink);cursor:pointer;font-size:12px;font-weight:900}.sound-toggle:hover{border-color:rgba(143,59,50,.45)}.sound-toggle.is-off{background:#e8e2d8;color:#67727e}.sound-toggle-icon{font-size:15px;line-height:1}
.audio-button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;padding:9px 14px;border:1px solid rgba(24,40,59,.2);border-radius:999px;background:#fffdf8;color:var(--ink);cursor:pointer;font-weight:900;line-height:1.2;transition:transform .18s ease,border-color .18s ease,background .18s ease;touch-action:manipulation;-webkit-tap-highlight-color:transparent}.audio-button:hover:not(:disabled){transform:translateY(-1px);border-color:var(--bronze)}.audio-button:focus-visible,.sound-toggle:focus-visible{outline:3px solid rgba(43,90,130,.25);outline-offset:3px}.audio-button:disabled{cursor:not-allowed;opacity:.48}.audio-icon{display:grid;place-items:center;min-width:18px;font-size:16px}.audio-state{font-size:11px;color:#7a6651}.audio-button.is-playing{background:#173c36;border-color:#173c36;color:white}.audio-button.is-playing .audio-state{color:#cde7df}.audio-button.is-paused{background:#e8f1f8;border-color:#7ba1bf}.audio-button.is-loading{cursor:progress}.hero-audio{border-color:rgba(255,255,255,.55);background:rgba(10,20,32,.62);color:white}.hero-audio .audio-state{color:#ead5ae}.section-audio{margin-left:auto;align-self:center;flex:0 0 auto}.light-audio{border-color:rgba(255,255,255,.38);background:rgba(255,255,255,.08);color:white}.light-audio .audio-state{color:#d7dee5}.detail-audio{margin:2px 0 12px}.compact-audio{flex:0 0 auto}
.learning-guide{position:relative;width:min(1080px,calc(100% - 40px));margin:34px auto 0;display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:22px;align-items:center;padding:26px 28px;border:1px solid rgba(154,104,55,.22);border-radius:20px;background:linear-gradient(135deg,#fffdf8,#eee4d2);box-shadow:0 12px 34px rgba(24,40,59,.08)}.guide-mark{display:grid;place-items:center;width:56px;height:56px;border-radius:18px;background:var(--red);color:white;font-family:STKaiti,KaiTi,serif;font-size:28px;font-weight:900}.guide-copy h2{margin:0;font-size:28px}.guide-copy>p:last-of-type{margin:7px 0 12px;color:#596779}.guide-tags{display:flex;gap:8px;flex-wrap:wrap}.guide-tags span{padding:4px 9px;border-radius:999px;background:rgba(154,104,55,.11);color:#705033;font-size:12px;font-weight:800}
.inline-audio-card,.closing-audio-card{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-top:24px;padding:18px 20px;border-radius:16px;border:1px solid var(--line);background:#fffaf0}.inline-audio-card strong{display:block;font-size:18px}.inline-audio-card span{display:block;color:#6c7782;font-size:13px}.closing-audio-card{margin-top:24px;padding:24px;background:linear-gradient(135deg,#18283b,#2f465f);color:white;border:0}.closing-audio-card h3{margin:2px 0 6px;font-size:24px}.closing-audio-card p{margin:0;color:#d2dbe4}.closing-audio-card .kicker{color:#e5bd75}.closing-audio{border-color:rgba(255,255,255,.38);background:rgba(255,255,255,.1);color:white;flex:0 0 auto}.closing-audio .audio-state{color:#d6dee7}
@media(max-width:1180px){.topnav{gap:11px}.topnav a{font-size:13px}.sound-toggle-label{display:none}}
@media(max-width:980px){.topbar{justify-content:space-between}.topnav{right:0}.topbar-controls{margin-left:auto}.sound-toggle-label{display:inline}.learning-guide{grid-template-columns:auto minmax(0,1fr)}.guide-audio{grid-column:2;justify-self:start}}
@media(max-width:720px){.topbar{padding-left:14px;padding-right:14px}.brand{gap:8px}.brand-mark{width:40px;height:40px}.brand strong{font-size:16px}.sound-toggle{padding:7px 9px}.sound-toggle-label{display:none}.hero-actions{width:100%}.hero-actions .btn,.hero-actions .audio-button{width:min(280px,100%)}.learning-guide{grid-template-columns:1fr;gap:14px;padding:22px;margin-top:26px}.guide-mark{width:48px;height:48px}.guide-audio{grid-column:auto;justify-self:stretch}.section-heading{flex-wrap:wrap}.section-audio{margin-left:52px;align-self:auto}.inline-audio-card,.closing-audio-card{align-items:stretch;flex-direction:column}.compact-audio,.closing-audio{align-self:flex-start}.audio-button{min-height:44px}.detail-audio{width:100%}}

/* V0.4.0：接入天智清醒历史全站导航 */
.topbar { gap: 20px; }
.brand { margin-right: auto; min-width: 0; }
.brand-logo { width: 44px; height: 44px; flex: 0 0 auto; border-radius: 14px; box-shadow: 0 5px 18px rgba(20,35,56,.14); }
.brand > strong { color: var(--ink); font-size: 18px; letter-spacing: .05em; white-space: nowrap; }
.global-nav { display: flex; align-items: center; gap: 5px; }
.global-nav a { padding: 8px 11px; border-radius: 10px; color: #526172; font-size: 14px; font-weight: 800; }
.global-nav a:hover { color: var(--red); background: rgba(143,59,50,.06); }
.global-nav a.active { color: #fff; background: var(--ink); }
.topnav {
  position: sticky; top: 72px; z-index: 75; min-height: 46px; padding: 0 max(20px,calc((100vw - 1200px)/2));
  display: flex; align-items: center; justify-content: center; gap: 20px; flex-wrap: wrap;
  background: rgba(255,253,248,.96); border-bottom: 1px solid var(--line); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
}
.topnav a { padding: 11px 2px; font-size: 13px; }
.home-return { border-color: rgba(255,255,255,.44); }
.bottom-nav { grid-template-columns: repeat(4,1fr) !important; }
.bottom-nav a.active { color: #f1d18d; font-weight: 900; }

@media(max-width:1180px){
  .global-nav { gap: 2px; }
  .global-nav a { padding: 8px 8px; font-size: 13px; }
  .topnav { gap: 13px; }
}
@media(max-width:980px){
  .global-nav { display: none; }
  .topnav { position: fixed; top: 72px; left: 0; right: 0; z-index: 85; display: none; padding: 12px 18px; justify-content: flex-start; background: var(--paper); }
  .topnav.open { display: flex; }
  .menu-toggle { display: block; }
}
@media(max-width:720px){
  .brand-logo { width: 40px; height: 40px; border-radius: 12px; }
  .brand > strong { font-size: 16px; }
  .topnav { top: 62px; }
}