:root{color-scheme:dark;--bg: #0d0f0c;--surface: #171a14;--surface-2: #20251c;--text: #f4f2e8;--muted: #bbb8a8;--line: rgba(244, 242, 232, .16);--accent: #e2472f;--accent-2: #f6c451;--deep: #090a08;--radius: 8px;--display-font: "Segoe UI Variable Display", "Segoe UI", "Helvetica Neue", Arial, sans-serif;--body-font: "Segoe UI Variable Text", "Segoe UI", "Helvetica Neue", Arial, sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;background:linear-gradient(120deg,rgba(226,71,47,.08),transparent 28%),linear-gradient(180deg,#10120f,#0d0f0c 45%,#11140f);color:var(--text);font-family:var(--body-font);letter-spacing:0}body:before{position:fixed;top:0;right:0;bottom:0;left:0;z-index:-1;pointer-events:none;content:"";opacity:.16;background-image:linear-gradient(rgba(244,242,232,.1) 1px,transparent 1px),linear-gradient(90deg,rgba(244,242,232,.1) 1px,transparent 1px);background-size:44px 44px;-webkit-mask-image:linear-gradient(to bottom,black,transparent 80%);mask-image:linear-gradient(to bottom,black,transparent 80%)}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}.site-header{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px;padding:14px clamp(18px,4vw,56px);border-bottom:1px solid var(--line);background:#0d0f0cc7;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800}.brand-mark{position:relative;display:inline-grid;width:50px;height:40px;place-items:center;border:1px solid rgba(226,71,47,.6);border-radius:var(--radius);background:var(--surface);color:#fff7ed;overflow:hidden;font-size:.78rem;isolation:isolate;box-shadow:0 12px 34px #e2472f2e}.brand-mark img{position:absolute;top:0;right:0;bottom:0;left:0;z-index:-2;width:100%;height:100%;object-fit:cover;filter:saturate(1.16) contrast(1.08)}.brand-mark:after{position:absolute;top:0;right:0;bottom:0;left:0;z-index:-1;background:linear-gradient(135deg,#e2472f8a,#090a087a),#00000038;content:""}.brand-mark span{text-shadow:0 1px 8px rgba(0,0,0,.72)}nav{display:flex;align-items:center;gap:clamp(12px,2vw,28px);color:var(--muted);font-size:.94rem}nav a{transition:color .18s ease}nav a:hover{color:var(--text)}.hero-section{display:grid;grid-template-columns:minmax(0,.9fr) minmax(420px,1.1fr);gap:clamp(32px,6vw,88px);align-items:center;min-height:calc(100dvh - 72px);padding:clamp(36px,6vw,72px) clamp(18px,5vw,72px) 42px;overflow:hidden}.hero-copy{max-width:760px}.kicker{margin:0 0 16px;color:var(--accent-2);font-size:.78rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}h1,h2,h3,p{margin-top:0}h1{max-width:820px;margin-bottom:22px;font-family:var(--display-font);font-size:clamp(3.25rem,7.4vw,7rem);font-weight:820;line-height:.98;letter-spacing:0;text-wrap:balance}h2{margin-bottom:0;font-family:var(--display-font);font-size:clamp(2rem,4.6vw,4.4rem);font-weight:780;line-height:1;letter-spacing:0;text-wrap:balance}h3{margin-bottom:12px;font-size:1.2rem}.hero-lead{max-width:680px;color:var(--muted);font-size:clamp(1.05rem,1.6vw,1.35rem);line-height:1.55}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 20px;border:1px solid transparent;border-radius:var(--radius);font-weight:800;transition:transform .16s ease,border-color .16s ease,background .16s ease}.button:active{transform:translateY(1px)}.button.primary{background:var(--accent);color:#fff7ed}.button.secondary{border-color:var(--line);background:#f4f2e80d;color:var(--text)}.button.disabled{width:fit-content;margin-top:24px;border-color:#f6c45161;background:#f6c4511f;color:#ffe8a3;cursor:not-allowed}.hero-stage{position:relative;min-height:610px;perspective:1200px;transform-style:preserve-3d}.hero-artwork{position:absolute;inset:5% 3% auto auto;width:min(92%,760px);height:500px;object-fit:cover;border:1px solid rgba(244,242,232,.18);border-radius:var(--radius);filter:saturate(1.05) contrast(1.08);transform:rotateY(-12deg) rotateX(2deg) translateZ(80px);box-shadow:0 40px 130px #00000085;animation:hero-drift 9s ease-in-out infinite}.stage-floor{position:absolute;right:3%;bottom:6%;width:86%;height:44%;border:1px solid rgba(244,242,232,.16);background:linear-gradient(90deg,rgba(244,242,232,.1) 1px,transparent 1px),linear-gradient(rgba(244,242,232,.1) 1px,transparent 1px),#e2472f14;background-size:42px 42px;transform:rotateX(74deg) rotate(-8deg);transform-origin:center;box-shadow:0 80px 100px #00000073}.portrait-card,.social-panel,.evidence-tape{position:absolute;border:1px solid var(--line);border-radius:var(--radius);transform-style:preserve-3d;box-shadow:0 28px 90px #0000006b}.portrait-card{overflow:hidden;width:min(42vw,270px);background:#191b16}.portrait-card img{width:100%;height:310px;object-fit:cover;filter:grayscale(1) contrast(1.1)}.portrait-card span{display:block;padding:14px 16px;color:var(--text);font-weight:900}.marx-card{top:11%;left:5%;transform:rotateY(18deg) rotate(-4deg) translateZ(90px);animation:float-a 7s ease-in-out infinite}.lenin-card{top:25%;right:7%;transform:rotateY(-20deg) rotate(5deg) translateZ(140px);animation:float-b 8s ease-in-out infinite}.social-panel{width:250px;padding:18px;background:#20251ce6;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.social-panel strong,.social-panel span,.social-panel small{display:block}.social-panel strong{margin-bottom:10px;font-size:1.05rem}.social-panel span{color:var(--accent-2);font-weight:900}.social-panel small{margin-top:8px;color:var(--muted)}.panel-a{top:4%;right:24%;transform:rotateY(-16deg) translateZ(200px)}.panel-b{bottom:13%;left:22%;transform:rotateY(20deg) rotateX(5deg) translateZ(190px)}.evidence-tape{padding:10px 18px;background:var(--accent-2);color:#201407;font-size:.78rem;font-weight:1000;letter-spacing:.08em}.tape-one{left:2%;bottom:28%;transform:rotate(-10deg) translateZ(260px)}.tape-two{right:5%;bottom:2%;transform:rotate(7deg) translateZ(160px)}.brief-strip{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.ticker{overflow:hidden;border-top:1px solid rgba(246,196,81,.26);border-bottom:1px solid rgba(246,196,81,.26);background:#f6c45114}.compact-ticker{margin-block:0}.ticker-track{display:flex;width:max-content;animation:ticker-move 28s linear infinite}.ticker-track span{display:inline-flex;align-items:center;min-height:52px;padding-inline:28px;color:#ffe7a1;font-size:.86rem;font-weight:900;letter-spacing:.08em;text-transform:uppercase;white-space:nowrap}.ticker-track span:after{width:8px;height:8px;margin-left:28px;border-radius:50%;background:var(--accent);content:""}.brief-strip div{min-height:132px;padding:28px clamp(18px,4vw,46px);border-right:1px solid var(--line);color:var(--text);font-size:1.05rem;line-height:1.45}.brief-strip div:last-child{border-right:0}.brief-strip span{display:block;margin-bottom:10px;color:var(--accent-2);font-size:.76rem;font-weight:900;text-transform:uppercase}.section{padding:clamp(72px,9vw,128px) clamp(18px,5vw,72px)}.section-heading{max-width:1080px;margin-bottom:40px}.section-heading.compact{max-width:860px}.intro-section{border-bottom:1px solid var(--line)}.content-page{display:grid;grid-template-columns:120px minmax(0,1fr) minmax(300px,.46fr);gap:clamp(24px,5vw,64px);align-items:center;min-height:72dvh;border-bottom:1px solid var(--line)}.content-page:nth-of-type(2n){background:#f4f2e806}.page-number{position:sticky;top:96px;color:#f6c4516b;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:clamp(3rem,7vw,6.5rem);font-weight:900;line-height:.85}.content-copy{max-width:960px}.page-body{margin-top:28px;color:var(--muted);font-size:clamp(1.08rem,1.55vw,1.35rem);line-height:1.75}.page-visual{position:sticky;top:96px;min-height:500px;padding:28px;border:1px solid rgba(246,196,81,.3);border-radius:var(--radius);background:linear-gradient(135deg,rgba(246,196,81,.14),transparent 38%),linear-gradient(180deg,rgba(226,71,47,.14),transparent 70%),#171a14bd;overflow:hidden;box-shadow:0 34px 90px #00000047}.page-visual:before,.page-visual:after{position:absolute;border:1px solid rgba(246,196,81,.18);border-radius:999px;content:""}.page-visual:before{top:-80px;right:-70px;width:220px;height:220px;animation:slow-spin 18s linear infinite}.page-visual:after{right:34px;bottom:34px;width:90px;height:90px;border-color:#e2472f57}.visual-orbit{position:relative;width:112px;height:112px;margin-bottom:36px;display:grid;place-items:center;border:1px solid rgba(246,196,81,.36);border-radius:50%;background:#f6c45114}.visual-orbit:before{position:absolute;top:-12px;right:-12px;bottom:-12px;left:-12px;border:1px dashed rgba(246,196,81,.34);border-radius:inherit;content:"";animation:slow-spin 12s linear infinite reverse}.visual-orbit span{color:var(--accent-2);font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:2rem;font-weight:900}.page-visual strong{position:relative;display:block;color:var(--text);font-family:var(--display-font);font-size:clamp(1.5rem,2.2vw,2.15rem);line-height:1.08;text-wrap:balance}.visual-quote{position:relative;margin:18px 0 0;color:#ffe6a3;font-size:1rem;font-weight:750;line-height:1.5}.visual-demo{position:relative;height:128px;margin:28px 0 6px;border:1px solid rgba(244,242,232,.12);border-radius:var(--radius);background:linear-gradient(90deg,rgba(244,242,232,.08) 1px,transparent 1px),linear-gradient(rgba(244,242,232,.08) 1px,transparent 1px),#090a0857;background-size:26px 26px;overflow:hidden}.demo-line,.demo-node{position:absolute}.demo-line{left:18px;right:18px;height:2px;border-radius:999px;background:linear-gradient(90deg,transparent,rgba(246,196,81,.78),transparent);transform-origin:left}.demo-line-a{top:30px;animation:scan-line 3.2s ease-in-out infinite}.demo-line-b{top:64px;animation:scan-line 3.2s ease-in-out .5s infinite}.demo-line-c{top:98px;animation:scan-line 3.2s ease-in-out 1s infinite}.demo-node{width:16px;height:16px;border:2px solid var(--accent-2);border-radius:50%;background:var(--surface);box-shadow:0 0 24px #f6c4516b;animation:pulse-node 2.4s ease-in-out infinite}.demo-node-a{top:22px;left:24%}.demo-node-b{top:56px;left:58%;animation-delay:.35s}.demo-node-c{top:90px;left:40%;animation-delay:.7s}.visual-words{position:relative;display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}.visual-words span{padding:10px 12px;border:1px solid rgba(244,242,232,.16);border-radius:var(--radius);background:#f4f2e80f;color:var(--muted);font-weight:800}.visual-evidence{position:relative;margin:22px 0 0;padding-top:18px;border-top:1px solid rgba(244,242,232,.13);color:var(--muted);line-height:1.55}.motif-ad .visual-demo:before{position:absolute;inset:18px auto auto 18px;width:142px;height:80px;border:1px solid rgba(226,71,47,.55);border-radius:var(--radius);background:linear-gradient(180deg,rgba(226,71,47,.26),transparent),#20251ce0;content:"";animation:card-float 3.6s ease-in-out infinite}.motif-ad .visual-demo:after{position:absolute;right:18px;bottom:20px;padding:8px 12px;border-radius:var(--radius);background:var(--accent);color:#fff7ed;font-weight:900;content:"29.900.000đ";animation:blink-price 1.6s steps(2,jump-none) infinite}.motif-pressure .demo-line{left:24px;right:auto;height:14px;background:linear-gradient(90deg,var(--accent),var(--accent-2));animation:pressure-grow 3.8s ease-in-out infinite}.motif-pressure .demo-line-a{width:38%}.motif-pressure .demo-line-b{width:68%}.motif-pressure .demo-line-c{width:52%}.motif-chain .visual-demo{background:radial-gradient(circle at 24% 50%,rgba(246,196,81,.22),transparent 15%),radial-gradient(circle at 52% 50%,rgba(226,71,47,.22),transparent 15%),radial-gradient(circle at 78% 50%,rgba(246,196,81,.22),transparent 15%),#090a0857}.motif-chain .demo-line{top:64px;left:25%;right:auto;width:54%;animation:chain-flow 2.4s linear infinite}.motif-chain .demo-line-b,.motif-chain .demo-line-c{display:none}.motif-chain .demo-node-a{top:56px;left:21%}.motif-chain .demo-node-b{top:56px;left:50%}.motif-chain .demo-node-c{top:56px;left:76%}.motif-sleep .visual-demo{filter:saturate(.72)}.motif-sleep .demo-node{border-color:#f4f2e880;box-shadow:0 0 36px #f4f2e82e;animation:sleepy-drift 5s ease-in-out infinite}.motif-sleep .demo-line{background:linear-gradient(90deg,transparent,rgba(244,242,232,.42),transparent);animation-duration:5s}.motif-action .visual-demo:before{position:absolute;top:20px;right:26px;bottom:20px;left:26px;border-left:3px solid var(--accent-2);content:""}.motif-action .visual-demo:after{position:absolute;left:44px;top:22px;width:38px;height:86px;border-top:3px solid var(--accent-2);border-right:3px solid var(--accent-2);transform:rotate(38deg);content:"";animation:action-arrow 2.4s ease-in-out infinite}.motif-action .demo-node-a,.motif-action .demo-node-b,.motif-action .demo-node-c{left:auto;right:28px}.parts-section{border-bottom:1px solid var(--line)}.parts-list{display:grid;gap:14px}.part-card{overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(135deg,rgba(226,71,47,.1),transparent 32%),#171a14b8}.part-card summary{display:grid;grid-template-columns:108px minmax(180px,.55fr) minmax(240px,1fr) 42px;gap:18px;align-items:center;min-height:96px;padding:22px 26px;cursor:pointer;list-style:none}.part-card summary::-webkit-details-marker{display:none}.part-card summary:after{justify-self:end;width:36px;height:36px;display:grid;place-items:center;border:1px solid var(--line);border-radius:50%;color:var(--accent-2);content:"+";transition:transform .2s ease,background .2s ease}.part-card[open] summary:after{background:#f6c4511f;transform:rotate(45deg)}.part-speaker{color:var(--accent-2);font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-weight:900}.part-title{font-size:clamp(1.25rem,2vw,2rem);font-weight:900}.part-short{color:var(--muted);line-height:1.55}.part-body{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.8fr);gap:22px;padding:0 26px 28px;animation:reveal-content .24s ease both}.part-body h3{color:var(--accent-2);font-size:.9rem;text-transform:uppercase}.part-body ul{display:grid;gap:12px;margin:0;padding-left:20px;color:var(--muted);line-height:1.62}.theory-note{padding:22px;border:1px solid rgba(246,196,81,.26);border-radius:var(--radius);background:#f6c45114}.theory-note p{color:var(--muted);line-height:1.62}.theory-note strong{display:block;color:var(--text);line-height:1.5}.argument-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;max-width:1080px;color:var(--muted);font-size:1.15rem;line-height:1.7}.problem-section{display:grid;grid-template-columns:minmax(280px,.86fr) minmax(0,1.14fr);gap:clamp(32px,6vw,76px);align-items:center}.image-slab{overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);transform:rotate(-2deg)}.image-slab img{width:100%;min-height:460px;object-fit:cover;filter:grayscale(1) contrast(1.12)}.problem-copy h2{margin-bottom:32px}.pressure-list{display:grid;gap:14px}.pressure-item{display:grid;grid-template-columns:18px minmax(0,1fr);gap:14px;align-items:start;padding:18px 0;border-top:1px solid var(--line)}.pressure-item span{width:12px;height:12px;margin-top:8px;border-radius:50%;background:var(--accent)}.pressure-item p{margin-bottom:0;color:var(--muted);font-size:1.05rem;line-height:1.55}.theory-section{background:#f4f2e809;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.theory-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.theory-card{min-height:260px;padding:28px;border:1px solid var(--line);border-radius:var(--radius);background:#0d0f0c8a}.theory-card p,.mechanism-card p,.opium-copy p,.case-board p,.game-console p,.ai-grid p{color:var(--muted);line-height:1.65}.mechanism-track{display:grid;grid-template-columns:repeat(4,minmax(230px,1fr));gap:14px}.mechanism-card{min-height:300px;padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(180deg,#e2472f1f,#171a14b8)}.mechanism-card span{display:inline-block;margin-bottom:48px;color:var(--accent-2);font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-weight:900}.opium-section{display:grid;grid-template-columns:minmax(0,.95fr) minmax(320px,1.05fr);gap:clamp(28px,6vw,72px);align-items:start;border-top:1px solid var(--line)}.opium-copy p{max-width:740px;margin-top:28px;font-size:1.15rem}.opium-verdict{display:grid;gap:16px}.opium-verdict div{padding:28px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}.opium-verdict span{display:block;margin-bottom:12px;color:var(--accent-2);font-size:.78rem;font-weight:900;text-transform:uppercase}.opium-verdict strong{display:block;font-size:1.3rem;line-height:1.35}.game-section{min-height:78dvh;display:grid;place-items:center;background:linear-gradient(180deg,#f6c45114,#0d0f0c00),var(--deep)}.game-shell{width:min(100%,1180px);padding:clamp(28px,4vw,52px);border:1px solid rgba(246,196,81,.26);border-radius:14px;background:linear-gradient(135deg,rgba(246,196,81,.12),transparent 30%),linear-gradient(180deg,rgba(226,71,47,.1),transparent 65%),#0f120ee6;box-shadow:0 46px 120px #0000006b}.game-header,.console-top{display:flex;justify-content:space-between;gap:14px;align-items:end;margin-bottom:28px;color:var(--accent-2);font-family:ui-monospace,SFMono-Regular,Consolas,monospace}.game-status{display:grid;justify-items:end;gap:8px}.game-status span{color:var(--muted);font-family:var(--body-font);font-size:.92rem}.game-status strong{font-size:1.7rem}.quiz-progress{margin-bottom:26px}.quiz-progress-bar{height:10px;overflow:hidden;border-radius:999px;background:#f4f2e814}.quiz-progress-bar span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--accent),var(--accent-2));transition:width .22s ease}.quiz-progress-meta{display:flex;justify-content:space-between;gap:16px;margin-top:10px;color:var(--muted);font-size:.92rem}.quiz-layout,.result-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.42fr);gap:18px}.quiz-card,.quiz-sidepanel,.result-hero,.result-actions{padding:26px;border:1px solid rgba(244,242,232,.12);border-radius:12px;background:#f4f2e80a}.quiz-stage{margin-bottom:14px;color:var(--accent-2);font-size:.78rem;font-weight:900;letter-spacing:.08em;text-transform:uppercase}.quiz-card h3,.result-hero h3,.result-actions h3{margin-bottom:0;font-family:var(--display-font);font-size:clamp(1.5rem,2.2vw,2.2rem);line-height:1.15}.quiz-options{display:grid;gap:12px;margin-top:28px}.quiz-option{padding:18px;border:1px solid rgba(244,242,232,.14);border-radius:12px;background:#f4f2e808;color:var(--text);text-align:left;transition:transform .16s ease,border-color .16s ease,background .16s ease}.quiz-option:hover{border-color:#f6c45170;background:#f6c45114;transform:translateY(-1px)}.quiz-option.selected{border-color:#f6c451cc;background:linear-gradient(135deg,rgba(246,196,81,.16),transparent 44%),#f4f2e80d}.quiz-option strong{display:block;font-size:1rem;line-height:1.5}.quiz-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.quiz-actions .button[disabled]{opacity:.45;cursor:not-allowed}.quiz-sidepanel strong{display:block;margin-bottom:18px;font-size:1.14rem}.quiz-sidepanel p{color:var(--muted);line-height:1.65}.quiz-pills{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}.quiz-pills span{padding:10px 12px;border:1px solid rgba(244,242,232,.12);border-radius:999px;background:#f4f2e80a;color:var(--muted);font-size:.92rem;font-weight:700}.result-hero p,.result-actions p{color:var(--muted);line-height:1.65}.result-highlight{margin-top:24px;padding:18px;border:1px solid rgba(246,196,81,.22);border-radius:12px;background:#f6c45114}.result-highlight span{display:block;margin-bottom:10px;color:var(--accent-2);font-size:.76rem;font-weight:900;text-transform:uppercase}.result-highlight strong{line-height:1.55}.result-metrics{display:grid;gap:14px}.metric-card{padding:20px;border:1px solid rgba(244,242,232,.12);border-radius:12px;background:#f4f2e80a}.metric-card span,.metric-card strong{display:block}.metric-card span{color:var(--muted);font-size:.92rem}.metric-card strong{margin-top:8px;font-size:2rem;color:var(--text)}.metric-bar{height:10px;overflow:hidden;margin-top:14px;border-radius:999px;background:#f4f2e814}.metric-bar i{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--accent),var(--accent-2))}.risk-card .metric-bar i{background:linear-gradient(90deg,#f6c451,#ff6a3d)}.result-solution-list{display:grid;gap:10px;margin-top:22px}.result-subhead{margin-top:28px;margin-bottom:0;font-size:1.15rem}.result-solution-list div{padding:14px 16px;border-left:3px solid rgba(246,196,81,.7);background:#f4f2e80a;color:var(--muted);line-height:1.55}.adaptive-list div{border-left-color:#e2472fb8}.reference-section{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:linear-gradient(135deg,rgba(226,71,47,.12),transparent 32%),linear-gradient(180deg,rgba(246,196,81,.05),transparent 70%)}.reference-poster{position:relative;display:grid;grid-template-columns:minmax(280px,.9fr) minmax(0,1.1fr);gap:clamp(24px,5vw,72px);align-items:stretch;min-height:560px;overflow:hidden;border:1px solid rgba(246,196,81,.24);border-radius:14px;background:linear-gradient(135deg,rgba(246,196,81,.11),transparent 38%),#0f120ee0;box-shadow:0 44px 120px #00000061}.reference-poster:hover .reference-art img{transform:scale(1.06)}.reference-art{position:relative;min-height:420px;overflow:hidden;isolation:isolate}.reference-art img{width:100%;height:100%;object-fit:cover;filter:saturate(.9) contrast(1.08) brightness(.82);transition:transform .7s ease}.reference-art:after{position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(90deg,transparent,rgba(15,18,14,.9)),linear-gradient(180deg,#e2472f29,#090a0880);content:""}.thread{position:absolute;z-index:1;height:2px;border-radius:999px;background:linear-gradient(90deg,transparent,rgba(246,196,81,.85),transparent);transform-origin:left;animation:reference-thread 4.5s ease-in-out infinite}.thread-a{top:24%;left:8%;width:72%;transform:rotate(16deg)}.thread-b{top:54%;left:18%;width:64%;transform:rotate(-22deg);animation-delay:.6s}.thread-c{bottom:21%;left:4%;width:82%;transform:rotate(4deg);animation-delay:1.1s}.reference-copy{position:relative;z-index:2;display:flex;flex-direction:column;justify-content:center;padding:clamp(28px,5vw,64px)}.reference-copy h2{max-width:900px;margin-bottom:22px}.reference-copy .kicker{max-width:760px;line-height:1.45;letter-spacing:.02em;text-transform:none}.reference-copy p{max-width:760px;color:var(--muted);font-size:clamp(1.08rem,1.45vw,1.28rem);line-height:1.68}.reference-tags{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0}.reference-tags span{padding:10px 12px;border:1px solid rgba(244,242,232,.14);border-radius:var(--radius);background:#f4f2e80f;color:#ffe6a3;font-weight:800}.reference-copy strong{display:block;max-width:780px;color:var(--text);font-size:clamp(1.06rem,1.35vw,1.18rem);line-height:1.58}.reference-cta{display:inline-flex;width:fit-content;margin-top:28px;padding:13px 18px;border-radius:var(--radius);background:var(--accent);color:#fff7ed;font-weight:900}.ai-section{border-top:1px solid var(--line)}.ai-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.ai-grid article{min-height:240px;padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}.site-footer{display:flex;justify-content:space-between;gap:20px;padding:28px clamp(18px,5vw,72px);border-top:1px solid var(--line);color:var(--muted)}@keyframes float-a{0%,to{transform:rotateY(18deg) rotate(-4deg) translateZ(90px) translateY(0)}50%{transform:rotateY(22deg) rotate(-2deg) translateZ(120px) translateY(-18px)}}@keyframes float-b{0%,to{transform:rotateY(-20deg) rotate(5deg) translateZ(140px) translateY(0)}50%{transform:rotateY(-24deg) rotate(3deg) translateZ(170px) translateY(14px)}}@keyframes hero-drift{0%,to{transform:rotateY(-12deg) rotateX(2deg) translateZ(80px) translateY(0)}50%{transform:rotateY(-8deg) rotateX(4deg) translateZ(120px) translateY(-16px)}}@keyframes ticker-move{0%{transform:translate(0)}to{transform:translate(-33.33%)}}@keyframes reveal-content{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}@keyframes slow-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes scan-line{0%,to{opacity:.22;transform:scaleX(.35) translate(-10px)}50%{opacity:1;transform:scaleX(1) translate(10px)}}@keyframes pulse-node{0%,to{transform:scale(.88);opacity:.68}50%{transform:scale(1.16);opacity:1}}@keyframes card-float{0%,to{transform:translateY(0) rotate(-2deg)}50%{transform:translateY(-10px) rotate(2deg)}}@keyframes blink-price{0%,to{opacity:1}50%{opacity:.46}}@keyframes pressure-grow{0%,to{transform:scaleX(.55);opacity:.72}50%{transform:scaleX(1);opacity:1}}@keyframes chain-flow{0%{background-position:0 0}to{background-position:120px 0}}@keyframes sleepy-drift{0%,to{transform:translateY(0) scale(.9);opacity:.42}50%{transform:translateY(18px) scale(1);opacity:.82}}@keyframes action-arrow{0%,to{transform:translate(0) rotate(38deg);opacity:.7}50%{transform:translate(18px) rotate(38deg);opacity:1}}@keyframes reference-thread{0%,to{opacity:.28;filter:blur(0)}50%{opacity:1;filter:blur(1px)}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}@media (max-width: 1100px){.hero-section,.problem-section,.opium-section,.content-page,.quiz-layout,.result-layout,.reference-poster{grid-template-columns:1fr}.page-number,.page-visual{position:static}.page-visual{min-height:420px}.hero-stage{min-height:560px}.brief-strip,.theory-grid,.ai-grid{grid-template-columns:1fr}.part-card summary,.part-body{grid-template-columns:1fr}.part-card summary:after{justify-self:start}.brief-strip div{border-right:0;border-bottom:1px solid var(--line)}.mechanism-track{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width: 720px){.site-header{align-items:flex-start;flex-direction:column;gap:12px}nav{width:100%;overflow-x:auto;padding-bottom:4px;white-space:nowrap}.hero-section{padding-top:28px}h1{font-size:clamp(2.7rem,16vw,4.4rem)}.hero-stage{min-height:500px;margin-inline:-18px;overflow:hidden}.hero-artwork{inset:6% auto auto 4%;width:92%;height:390px;transform:rotateY(-8deg) translateZ(40px)}.portrait-card{width:205px}.portrait-card img{height:245px}.marx-card{left:4%}.lenin-card{right:2%;top:34%}.social-panel{width:210px}.panel-a{right:8%}.panel-b{left:8%;bottom:8%}.tape-one,.tape-two{display:none}.ticker-track span{min-height:46px;padding-inline:18px;font-size:.74rem}.argument-grid,.mechanism-track{grid-template-columns:1fr}.game-header,.quiz-progress-meta{align-items:start;flex-direction:column}.game-status{justify-items:start}.image-slab{transform:none}.image-slab img{min-height:320px}.site-footer{flex-direction:column}}