@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700;800&family=Noto+Sans+SC:wght@400;500;600;700;800;900&display=swap');

:root{color-scheme:dark;--bg:#10131a;--panel:#171c25;--panel2:#1d2631;--line:rgba(225,237,246,.16);--white:#f4f5f1;--muted:#b2bcc9;--mint:#99f0cb;--orange:#ffb47c;--blue:#a0caff;--page-pad:clamp(26px,4.3vw,90px)}
*{box-sizing:border-box}html,body{margin:0;min-width:320px;height:100%;background:var(--bg);color:var(--white);font-family:'DM Sans','Noto Sans SC','Microsoft YaHei',sans-serif}body{overflow:hidden}button,input{font:inherit}button{cursor:pointer}a{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid var(--mint);outline-offset:4px}::selection{background:var(--mint);color:var(--bg)}
.app{height:100dvh;min-height:480px;display:grid;grid-template-rows:62px minmax(0,1fr) 70px;position:relative;isolation:isolate;background:radial-gradient(ellipse at 82% 32%,rgba(31,67,72,.24),transparent 42%),radial-gradient(ellipse at 14% 88%,rgba(79,54,51,.2),transparent 40%),var(--bg)}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:0 var(--page-pad);position:relative;z-index:5;border-bottom:1px solid var(--line);background:rgba(12,16,22,.68);backdrop-filter:blur(14px)}.brand{display:flex;gap:13px;align-items:center;font-size:17px;font-weight:800;letter-spacing:.03em}.brand-mark{width:29px;height:29px;display:grid;place-items:center;background:var(--mint);color:#092a25;border-radius:8px;font:800 20px 'DM Sans',sans-serif;transform:rotate(-8deg)}.topbar-right{display:flex;align-items:center;gap:18px;color:var(--muted);font-size:15px;font-weight:700}.topbar-right .divider{height:16px;width:1px;background:var(--line)}#count{font-variant-numeric:tabular-nums;color:var(--mint)}
.stage{min-height:0;position:relative;overflow:hidden}.scene{position:absolute;inset:0;padding:clamp(28px,4.2vh,64px) var(--page-pad);overflow:auto;scrollbar-color:#48535b transparent;display:grid;align-items:center;align-content:center;gap:clamp(24px,3vh,42px);opacity:0;transform:translate3d(4%,0,0) scale(.985);transition:opacity .6s cubic-bezier(.21,.75,.27,1),transform .6s cubic-bezier(.21,.75,.27,1);pointer-events:none}.scene.from-left{transform:translate3d(-4%,0,0) scale(.985)}.scene.active{opacity:1;transform:translate3d(0,0,0) scale(1);pointer-events:auto;z-index:2}.scene.leaving{opacity:0;transform:translate3d(-3%,0,0) scale(.99);z-index:1}.scene.leaving.to-right{transform:translate3d(3%,0,0) scale(.99)}.scene:before{content:"";position:absolute;inset:0;pointer-events:none;z-index:-1;background:linear-gradient(130deg,rgba(10,15,23,.1),rgba(29,51,54,.14) 70%,rgba(9,13,19,.25))}.scene>*{width:100%;max-width:1720px;margin-left:auto;margin-right:auto}
.eyebrow{margin:0 0 18px;color:var(--mint);font-weight:800;font-size:clamp(15px,1vw,20px);letter-spacing:.12em;text-transform:uppercase}.scene h1,.scene h2,.scene h3,.scene p{margin-top:0}.scene h1,.scene h2{letter-spacing:-.055em;line-height:1.08;font-weight:900;text-wrap:balance}.scene h1{font-size:clamp(56px,6vw,118px);margin:0 0 28px}.scene h2{font-size:clamp(48px,4.35vw,90px);margin:0 0 25px}.scene h1 em,.scene h2 em{color:var(--mint);font-style:normal}.lead{font-size:clamp(21px,1.48vw,30px);font-weight:600;line-height:1.56;color:#d7dee6;max-width:1100px}.scene-head{text-align:left}.scene-head .lead{max-width:1040px}.scene-head h2{margin-bottom:22px}
.reveal{opacity:0;transform:translate3d(0,22px,0) scale(.985);filter:blur(4px);transition:opacity .48s ease,transform .6s cubic-bezier(.16,1,.3,1),filter .5s ease}.reveal.shown{opacity:1;transform:none;filter:none}.point{display:flex;gap:22px;align-items:flex-start;padding:24px 27px;border:1px solid var(--line);background:linear-gradient(120deg,rgba(27,37,48,.92),rgba(22,29,39,.75));border-radius:18px;min-width:0;box-shadow:0 16px 46px rgba(0,0,0,.13)}.point-index{flex:none;color:var(--mint);font-size:20px;font-weight:800;font-variant-numeric:tabular-nums;line-height:1.5}.point h3{font-size:clamp(24px,1.6vw,31px);letter-spacing:-.04em;line-height:1.28;margin:0 0 7px}.point p{font-size:clamp(18px,1.05vw,23px);font-weight:500;line-height:1.42;color:var(--muted);margin:0}
.cover{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);align-items:center;gap:2vw}.cover:before{background:radial-gradient(circle at 75% 45%,rgba(79,135,124,.18),transparent 40%)}.cover-content{position:relative;z-index:2;margin-right:0}.cover-content .lead{max-width:840px}.cover-glow{position:absolute!important;width:36vw!important;height:36vw;max-width:none!important;right:0;top:8%;border-radius:50%;background:radial-gradient(circle,rgba(104,196,170,.15),transparent 68%);filter:blur(14px);pointer-events:none}.cover-mosaic{height:min(63vh,690px);display:grid;grid-template-columns:1fr 1fr;gap:15px;transform:perspective(900px) rotateY(-9deg) rotateZ(2deg);mask-image:linear-gradient(90deg,transparent,black 9%,black 90%,transparent);overflow:hidden}.cover-mosaic img{width:100%;height:100%;min-height:0;object-fit:cover;object-position:27% 38%;border:1px solid rgba(181,243,214,.25);border-radius:15px;filter:brightness(.8) saturate(.85)}.cover-mosaic img:nth-child(even){transform:translateY(36px)}.cover-names{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px}.cover-names span{padding:11px 18px;border:1px solid rgba(153,240,203,.4);border-radius:99px;color:var(--mint);font-size:clamp(17px,1vw,21px);font-weight:700;background:rgba(10,24,25,.5)}
.method{grid-template-columns:.85fr 1.15fr;gap:5vw}.method .scene-head{margin-right:0}.question-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:stretch}.question-grid .point{min-height:180px}.question-grid .point h3{font-size:clamp(24px,1.6vw,34px)}.question-grid .point-index{font-size:16px}
.account{grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:3.6vw}.account-copy{margin-right:0}.account h2{font-size:clamp(48px,4.05vw,78px)}.account .lead{max-width:850px}.point-stack{display:grid;gap:12px;margin-top:27px}.point-stack .point{padding:18px 22px}.point-stack .point h3{font-size:clamp(22px,1.35vw,29px)}.point-stack .point p{font-size:clamp(17px,1vw,22px)}.point-stack .point-index{font-size:18px}.account-shot{margin:0;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:17px;background:#0b1016;border:1px solid rgba(165,227,207,.3);border-radius:18px;box-shadow:0 35px 90px rgba(0,0,0,.35);position:relative}.account-shot:before{content:"";position:absolute;inset:6px;border:1px solid rgba(255,255,255,.08);border-radius:13px;pointer-events:none}.account-shot img{display:block;width:100%;height:auto;max-height:min(69vh,700px);object-fit:contain;border-radius:8px}.account-shot figcaption{align-self:flex-start;color:#a9bbb9;font-size:14px;margin-top:11px;padding-left:3px}
.evidence{align-content:center}.evidence .scene-head h2{font-size:clamp(46px,4vw,78px)}.evidence-grid{display:grid;grid-template-columns:1fr .9fr;gap:clamp(25px,4vw,80px);align-items:start}.framework-chain{display:grid;gap:14px}.framework-chain .point{min-height:118px;align-items:center}.evidence-panel{padding:31px;border:1px solid rgba(153,240,203,.3);border-radius:22px;background:linear-gradient(135deg,rgba(27,48,49,.65),rgba(17,23,33,.86))}.evidence-panel h3{font-size:clamp(27px,1.8vw,36px);margin:0 0 12px}.evidence-panel>p{font-size:clamp(18px,1.07vw,23px);line-height:1.5;color:var(--muted);margin:0 0 24px}.video-links{display:grid;gap:10px}.video-links a{display:grid;grid-template-columns:38px 1fr 24px;align-items:center;gap:10px;min-height:62px;padding:10px 15px;text-decoration:none;border:1px solid var(--line);background:rgba(13,23,29,.7);border-radius:10px;font-size:clamp(17px,1.05vw,22px);font-weight:700;transition:background .2s,transform .2s}.video-links a:hover{background:rgba(66,117,108,.3);transform:translateX(5px)}.video-links a span{color:var(--mint);font-size:15px}.video-links a b{color:var(--mint)}
.compare .scene-head{text-align:center}.compare .scene-head h2{margin-bottom:4px}.compare-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.compare-grid .point{min-height:300px;display:flex;flex-direction:column;gap:25px}.compare-grid .point h3{font-size:clamp(24px,1.55vw,34px)}.compare-grid .point p{font-size:clamp(19px,1.14vw,24px)}.compare-grid .point-index{font-size:18px}
.template .scene-head{text-align:center}.template .scene-head .lead{margin-left:auto;margin-right:auto}.template-steps{display:grid;grid-template-columns:repeat(5,1fr);gap:13px}.template-steps .point{min-height:290px;display:flex;flex-direction:column;gap:20px;padding:28px 22px}.template-steps .point h3{font-size:clamp(24px,1.5vw,34px)}.template-steps .point-index{font-size:26px}
.workshop{grid-template-columns:.8fr 1.2fr;gap:5vw}.worksheet{display:grid;gap:20px}.worksheet label{display:grid;gap:9px;font-size:clamp(21px,1.45vw,29px);font-weight:800}.worksheet input{width:100%;min-height:68px;padding:17px 20px;color:var(--white);border:1px solid rgba(153,240,203,.35);border-radius:12px;background:rgba(18,28,35,.85);font-size:clamp(19px,1.2vw,25px)}.worksheet input::placeholder{color:#879496}
.toolbar{z-index:5;display:flex;justify-content:space-between;align-items:center;gap:25px;padding:0 var(--page-pad);background:rgba(10,15,20,.83);border-top:1px solid var(--line);backdrop-filter:blur(14px)}.toolbar-left{min-width:0;display:flex;align-items:center;gap:20px;color:#aab8c5;font-size:15px;font-weight:600}.progress{height:5px;width:clamp(80px,17vw,300px);border-radius:6px;background:#2f3a42;overflow:hidden}.progress span{height:100%;display:block;width:0;background:linear-gradient(90deg,var(--mint),#d9f8aa);transition:width .55s ease}.toolbar-actions{display:flex;align-items:center;gap:9px}.toolbar button{min-width:46px;height:46px;border:1px solid rgba(153,240,203,.25);background:#1c2730;color:var(--white);border-radius:12px;font-size:22px;font-weight:700}.toolbar #overview-btn{padding:0 15px;font-size:16px}.toolbar button:hover{border-color:var(--mint);background:#2c4542}.toolbar #next-btn{background:var(--mint);color:#0c2622;border-color:var(--mint)}.toolbar #next-btn:hover{background:#c2ffe4}
.overview{width:min(880px,calc(100% - 28px));max-height:min(770px,85dvh);border:1px solid rgba(153,240,203,.3);border-radius:20px;padding:30px;background:#141b23;color:var(--white);box-shadow:0 30px 100px rgba(0,0,0,.65)}.overview::backdrop{background:rgba(0,6,10,.72);backdrop-filter:blur(10px)}.overview-head{display:flex;justify-content:space-between;gap:20px;align-items:start;margin-bottom:23px}.overview-head h2{margin:0;font-size:36px}.overview-head .eyebrow{margin-bottom:6px;font-size:14px}.overview-head button{width:44px;height:44px;border:1px solid var(--line);border-radius:9px;background:#202e35;color:var(--white);font-size:26px}.overview-list{display:grid;grid-template-columns:1fr 1fr;gap:9px}.overview-list button{display:grid;grid-template-columns:32px 90px 1fr;text-align:left;align-items:center;gap:8px;min-height:64px;padding:9px 14px;background:#1d2730;border:1px solid var(--line);border-radius:9px;color:var(--white)}.overview-list button:hover{background:#2a4848;border-color:var(--mint)}.overview-list button span:first-child{color:var(--mint)}.overview-list button span:nth-child(2){color:var(--muted);font-size:14px}.overview-list button strong{font-size:16px}
@media(max-width:1300px){.account{gap:2vw}.point-stack .point{padding:13px 17px}.point-stack{gap:8px}.account .lead{font-size:20px}.evidence-grid{gap:28px}.template-steps .point{padding:20px 15px}.template-steps .point p{font-size:17px}}
@media(max-width:900px){.app{grid-template-rows:54px minmax(0,1fr) 64px}.brand{font-size:14px}.topbar-right{font-size:13px;gap:10px}.scene{display:block;padding:28px 22px 50px}.scene>*{margin-bottom:25px}.scene h1{font-size:clamp(48px,10vw,76px)}.scene h2,.account h2,.evidence .scene-head h2{font-size:clamp(40px,8vw,66px)}.lead{font-size:20px}.cover{display:flex;flex-direction:column;justify-content:center}.cover-mosaic{width:100%;height:25vh;min-height:160px;flex:none;transform:none;gap:6px}.cover-mosaic img{object-position:25% 45%}.cover-mosaic img:nth-child(even){transform:none}.cover-names{margin-top:22px}.method .question-grid{grid-template-columns:1fr 1fr}.question-grid .point{min-height:125px}.account-shot{width:100%}.account-shot img{max-height:none}.point-stack .point p,.point p{font-size:18px}.point h3{font-size:24px}.evidence-grid{display:grid;grid-template-columns:1fr}.compare-grid{grid-template-columns:1fr 1fr}.compare-grid .point{min-height:180px}.template-steps{grid-template-columns:1fr 1fr}.template-steps .point{min-height:160px}.workshop .worksheet{margin-top:28px}.toolbar-left .progress{width:80px}.toolbar-left #hint{display:none}}
@media(max-width:560px){.scene{padding:24px 18px 38px}.topbar{padding:0 16px}.brand span:last-child{max-width:160px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.brand-mark{width:25px;height:25px;font-size:16px}.topbar-right #chapter{display:none}.topbar-right .divider{display:none}.scene h1{font-size:clamp(43px,12vw,58px)}.scene h2,.account h2,.evidence .scene-head h2{font-size:clamp(39px,10vw,54px)}.eyebrow{font-size:13px;margin-bottom:12px}.lead{font-size:19px;line-height:1.48}.cover-mosaic{height:25vh;min-height:170px}.cover-names span{font-size:14px;padding:8px 10px}.question-grid,.method .question-grid{grid-template-columns:1fr;gap:10px}.question-grid .point{min-height:0}.point{padding:15px 16px;gap:14px}.point h3,.point-stack .point h3{font-size:22px}.point p,.point-stack .point p{font-size:17px}.account-shot{padding:8px}.account-shot figcaption{font-size:12px}.framework-chain .point{min-height:0}.evidence-panel{padding:19px}.video-links a{font-size:16px;min-height:58px}.compare-grid{grid-template-columns:1fr}.compare-grid .point{min-height:0;gap:9px}.template-steps{grid-template-columns:1fr}.template-steps .point{min-height:0;gap:8px}.worksheet label{font-size:19px}.worksheet input{font-size:17px;min-height:58px}.toolbar{padding:0 12px}.toolbar button{min-width:43px;height:43px}.toolbar #overview-btn{padding:0 9px}.overview{padding:18px}.overview-head h2{font-size:25px}.overview-list{grid-template-columns:1fr}.overview-list button{grid-template-columns:25px 65px 1fr}.overview-list button strong{font-size:14px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}.reveal{filter:none}}

/* 清爽的白色演讲主题 */
:root{color-scheme:light;--bg:#f6f7f9;--panel:#fff;--panel2:#f0f3f7;--line:#dfe4eb;--white:#181b20;--muted:#5e6875;--mint:#1769d2;--blue:#1769d2;--orange:#c76631}
html,body{background:var(--bg);color:var(--white);font-family:-apple-system,BlinkMacSystemFont,'SF Pro Display','PingFang SC','Noto Sans SC','Microsoft YaHei',sans-serif}
.app{background:radial-gradient(ellipse at 82% 23%,rgba(176,211,255,.43),transparent 40%),radial-gradient(ellipse at 5% 88%,rgba(226,234,246,.8),transparent 44%),#f7f8fa}
.topbar{background:rgba(255,255,255,.84);border-bottom-color:#e6e9ef;box-shadow:0 1px 14px rgba(23,40,62,.035)}
.brand{font-weight:700;letter-spacing:-.025em}.brand-mark{background:#1769d2;color:#fff;transform:none;border-radius:8px}.topbar-right{color:#69717a}.topbar-right .divider{background:#d4d9df}#count{color:#1769d2}
.scene{overflow-x:hidden}.scene:before{background:linear-gradient(128deg,rgba(255,255,255,.28),rgba(230,239,249,.18) 65%,rgba(249,250,252,.22))}
.scene h1,.scene h2{font-weight:800;letter-spacing:-.065em;line-height:1.1;color:#171a20}.scene h1 em,.scene h2 em{color:#1769d2}.eyebrow{color:#1769d2;letter-spacing:.07em;font-weight:700}.lead{color:#4f5965;font-weight:500;line-height:1.5}
.point{background:rgba(255,255,255,.86);border:1px solid #e5e8ee;box-shadow:0 12px 35px rgba(39,69,99,.055);border-radius:20px}.point-index{color:#1769d2}.point h3{color:#20242a;font-weight:750;letter-spacing:-.04em}.point p{color:#606a75}
.cover:before{background:radial-gradient(circle at 78% 48%,rgba(182,212,255,.34),transparent 46%)}.cover-glow{background:radial-gradient(circle,rgba(137,188,251,.28),transparent 66%)}.cover-mosaic{height:min(69vh,720px);transform:perspective(1100px) rotateY(-8deg) rotateZ(1.5deg) scale(1.15);transform-origin:58% 50%;gap:12px;filter:blur(1.6px) saturate(.8);opacity:.77;mask-image:linear-gradient(90deg,transparent,black 9%,black 84%,transparent)}.cover-mosaic img{border-color:rgba(255,255,255,.88);box-shadow:0 22px 50px rgba(44,71,108,.16);filter:brightness(1.06)}.cover-mosaic img:nth-child(even){transform:translateY(12px)}.cover-names span{color:#225080;background:rgba(255,255,255,.75);border-color:#d9e7f7;box-shadow:0 4px 18px rgba(26,75,130,.055)}
.account-shot{background:#fff;border-color:#e4e8ef;box-shadow:0 25px 65px rgba(39,69,99,.13);border-radius:20px;transition:opacity .5s ease,transform .6s ease}.account-shot:before{border-color:rgba(31,46,70,.05)}.account-shot img{border-radius:10px}
.account-copy{transition:opacity .5s ease,transform .6s ease}.account .point-stack .point{background:rgba(255,255,255,.84)}
.focus-view{position:absolute!important;inset:17px var(--page-pad) 17px;width:auto!important;max-width:none!important;margin:0!important;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;opacity:0;transform:translateX(11%) scale(.78);transform-origin:74% 48%;transition:opacity .6s cubic-bezier(.2,.7,.2,1),transform .75s cubic-bezier(.16,1,.3,1);pointer-events:none;z-index:4}.focus-view img{display:block;width:min(90vw,1480px);height:min(64vh,740px);object-fit:contain;background:#11151a;border-radius:20px;box-shadow:0 28px 70px rgba(34,62,91,.2)}.focus-question{width:min(88vw,1450px);display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;padding:12px;background:rgba(255,255,255,.72);border:1px solid rgba(255,255,255,.9);backdrop-filter:blur(26px);-webkit-backdrop-filter:blur(26px);box-shadow:0 16px 40px rgba(40,72,102,.14);border-radius:19px}.focus-question>div{display:flex;align-items:center;gap:12px;padding:14px 17px;background:rgba(255,255,255,.54);border:1px solid rgba(220,229,240,.8);border-radius:12px}.focus-question span{color:#1769d2;font-size:15px;font-weight:800}.focus-question strong{font-size:clamp(18px,1.2vw,24px);line-height:1.35;letter-spacing:-.025em;font-weight:700}.account.focus-mode .account-copy,.account.focus-mode .account-shot{opacity:0;transform:scale(.9);pointer-events:none}.account.focus-mode .focus-view{opacity:1;transform:none;pointer-events:auto}
.evidence-panel{background:linear-gradient(135deg,rgba(236,245,255,.93),rgba(255,255,255,.9));border-color:#d9e5f2;box-shadow:0 15px 45px rgba(35,74,112,.08)}.evidence-panel h3{color:#20252d}.evidence-panel>p{color:#626f7c}.video-links a{background:rgba(255,255,255,.85);border-color:#dfe6ef;color:#202630}.video-links a:hover{background:#e9f3ff}.video-links a span,.video-links a b{color:#1769d2}
.worksheet input{color:#1d2630;border-color:#cfdceb;background:#fff;box-shadow:0 7px 20px rgba(28,58,98,.05)}.worksheet input::placeholder{color:#8a96a3}
.toolbar{background:rgba(255,255,255,.9);border-top-color:#e1e5eb}.progress{background:#e1e7ef}.progress span{background:#1769d2}.toolbar button{background:#fff;color:#344354;border-color:#dce4ee}.toolbar button:hover{background:#edf5ff;border-color:#9fc5f0}.toolbar #next-btn{background:#1769d2;color:#fff;border-color:#1769d2}.toolbar #next-btn:hover{background:#0757bc}
.overview{background:#fff;color:#20242a;border-color:#dce5ee;box-shadow:0 30px 100px rgba(20,41,63,.23)}.overview::backdrop{background:rgba(40,58,80,.28)}.overview-head button{background:#f1f4f8;color:#2c3847;border-color:#dce3eb}.overview-list button{background:#f7f9fc;color:#28323c;border-color:#e2e7ed}.overview-list button:hover{background:#e9f3ff;border-color:#9fc5f0}.overview-list button span:first-child{color:#1769d2}.overview-list button span:nth-child(2){color:#717d89}
@media(max-width:900px){.cover-mosaic{height:28vh;transform:scale(1.09);filter:blur(1px);opacity:.7}.scene .reveal:not(.shown){display:none}.scene .reveal.shown{animation:mobile-reveal .42s ease both}@keyframes mobile-reveal{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}.focus-view{position:relative!important;inset:auto;width:100%!important;height:auto;display:none;transform:none}.account.focus-mode .account-copy,.account.focus-mode .account-shot{display:none}.account.focus-mode .focus-view{display:flex;opacity:1;pointer-events:auto;transform:none}.focus-view img{width:100%;height:auto;max-height:none}.focus-question{width:100%;grid-template-columns:1fr}.focus-question strong{font-size:18px}}
@media(max-width:560px){.cover-mosaic{height:23vh}.focus-question{padding:9px}.focus-question>div{padding:10px 12px}.focus-question strong{font-size:17px}}

/* 浅色底上的色彩过渡：每章保留自己的色调 */
:root{--bg:#f5f3ef;--panel:#fffaf7;--panel2:#f0eee9;--line:rgba(59,52,51,.13);--white:#242225;--muted:#625d61;--mint:#b55d52}
html,body{background:#f5f3ef;color:#242225}
.app{background:radial-gradient(ellipse at 4% 90%,rgba(254,198,174,.5),transparent 42%),radial-gradient(ellipse at 92% 11%,rgba(191,179,236,.48),transparent 44%),linear-gradient(125deg,#f8f5f0,#f3f4f4 56%,#f6f2f4)}
.scene{--accent:#b45c50;--wash:rgba(244,188,168,.55);--wash-2:rgba(198,189,229,.4);background:radial-gradient(ellipse at 89% 19%,var(--wash),transparent 44%),radial-gradient(ellipse at 4% 84%,var(--wash-2),transparent 42%),linear-gradient(130deg,#fbf9f6 8%,#f4f3f1 64%,#f6f3f2);overflow-x:hidden}
.scene.tone-sunset{--accent:#bd5f52;--wash:rgba(244,171,144,.58);--wash-2:rgba(193,181,232,.55)}
.scene.tone-sea{--accent:#247d81;--wash:rgba(142,209,205,.5);--wash-2:rgba(205,194,233,.43)}
.scene.tone-rose{--accent:#bc5c67;--wash:rgba(248,183,182,.57);--wash-2:rgba(228,197,215,.5)}
.scene.tone-violet{--accent:#795ba5;--wash:rgba(195,176,234,.5);--wash-2:rgba(246,202,181,.47)}
.scene.tone-gold{--accent:#a86d35;--wash:rgba(244,211,151,.58);--wash-2:rgba(173,209,198,.45)}
.scene:before{background:radial-gradient(circle at 74% 57%,rgba(255,255,255,.28),transparent 44%)}.scene.active{transform:none}
@media(min-width:901px){.scene.cover{overflow:hidden}}
.topbar{background:rgba(250,247,244,.77);border-bottom-color:rgba(78,65,64,.1);backdrop-filter:blur(20px)}.brand-mark{background:#29262a;color:#fff}.topbar-right #count{color:#975c59}
.scene h1,.scene h2{color:#222024;letter-spacing:-.07em}.scene h2{font-weight:750}.scene h1 em,.scene h2 em{color:var(--accent)}.scene.cover h1 em{background:linear-gradient(105deg,#bd5e4e 8%,#a35176 50%,#655fa5 96%);background-clip:text;-webkit-background-clip:text;color:transparent}.eyebrow{color:var(--accent);letter-spacing:.035em}.lead{color:#5e5960;font-weight:500}
.point{background:linear-gradient(145deg,rgba(255,255,255,.83),rgba(255,249,245,.57));border-color:rgba(113,85,84,.15);box-shadow:0 16px 34px rgba(83,61,61,.07)}.point-index{color:var(--accent)}.point h3{color:#28252a}.point p{color:#686169}
.cover:before{background:radial-gradient(ellipse at 80% 55%,rgba(255,214,190,.27),transparent 45%)}.cover-glow{background:radial-gradient(circle,rgba(232,179,211,.32),transparent 65%)}.cover-mosaic{filter:blur(2.1px) saturate(.92);opacity:.84;mask-image:linear-gradient(90deg,transparent,black 7%,black 86%,transparent)}.cover-mosaic img{box-shadow:0 22px 55px rgba(73,48,50,.2)}.cover-names span{background:rgba(255,255,255,.62);border-color:rgba(169,109,111,.29);color:#865456}.cover-names span:nth-child(2){border-color:rgba(105,128,178,.33);color:#546582}.cover-names span:nth-child(3){border-color:rgba(116,90,163,.3);color:#6b5594}.cover-names span:nth-child(4){border-color:rgba(176,131,70,.34);color:#876640}
.account-shot{background:rgba(255,255,255,.77);border-color:rgba(255,255,255,.95);box-shadow:0 28px 70px rgba(69,57,62,.17)}.account .account-copy{max-width:850px}.account .lead{font-size:clamp(23px,1.6vw,32px)}
.evidence-panel{background:linear-gradient(140deg,rgba(255,252,248,.84),rgba(255,255,255,.56));border-color:rgba(152,112,111,.2);box-shadow:0 20px 48px rgba(86,59,60,.09)}.video-links a{background:rgba(255,255,255,.58);border-color:rgba(118,96,98,.17)}.video-links a:hover{background:rgba(253,230,219,.84)}.video-links a span,.video-links a b{color:var(--accent)}
.toolbar{background:rgba(250,247,244,.79);border-top-color:rgba(78,65,64,.1);backdrop-filter:blur(20px)}.progress{background:#ded8d8}.progress span{background:linear-gradient(90deg,#cf6b58,#9863a6)}.toolbar button{background:rgba(255,255,255,.75);color:#423a40;border-color:rgba(99,75,79,.17)}.toolbar button:hover{background:#faebe5;border-color:#cd958c}.toolbar #next-btn{background:#343034;border-color:#343034;color:#fff}.toolbar #next-btn:hover{background:#a75d56;border-color:#a75d56}
.overview{background:#fcf9f5;border-color:#e2d8d4}.overview-head button{background:#f4ece8}.overview-list button{background:rgba(255,255,255,.78);border-color:#e6ddda}.overview-list button:hover{background:#f8ebe7;border-color:#d1a59e}.overview-list button span:first-child{color:#b55d52}

/* 账号页：首点放大主页，后续逐点讲解 */
.focus-view{position:fixed!important;inset:0!important;width:100vw!important;height:100dvh!important;max-width:none!important;margin:0!important;display:block!important;overflow:hidden;z-index:999;opacity:0;transform:translateX(15%) scale(.72);transform-origin:74% 46%;background:#19191c;pointer-events:none;transition:opacity .55s cubic-bezier(.2,.7,.2,1),transform .75s cubic-bezier(.16,1,.3,1)}
.focus-view:before{content:"";position:absolute;inset:-7%;background-image:var(--focus-image);background-position:center;background-size:cover;filter:blur(30px) brightness(.65) saturate(.88);transform:scale(1.12)}
.focus-view:after{content:"";position:absolute;inset:38% 0 0;background:linear-gradient(transparent,rgba(13,13,17,.58));pointer-events:none;z-index:1}
.focus-view img{position:absolute;inset:0;display:block;width:100%;height:100%;max-width:none;max-height:none;object-fit:contain;border-radius:0;background:transparent;box-shadow:none;z-index:1}
.app:has(.account.focus-mode) .stage{z-index:30;overflow:visible}
.account.focus-mode{overflow:visible}.account.focus-mode .account-copy,.account.focus-mode .account-shot{opacity:0;transform:scale(.94);pointer-events:none}.account.focus-mode .focus-view{opacity:1;transform:none;pointer-events:auto}
.focus-close{position:absolute;top:24px;right:28px;z-index:4;width:50px;height:50px;border-radius:50%;border:1px solid rgba(255,255,255,.44);background:rgba(25,25,29,.46);color:#fff;font-size:30px;line-height:1;backdrop-filter:blur(14px)}.focus-close:hover{background:rgba(25,25,29,.72)}
.focus-question{position:absolute;left:50%;bottom:clamp(24px,5vh,70px);transform:translate(-50%,25px);width:min(1120px,calc(100vw - 72px));min-height:190px;display:block;padding:28px 38px;background:rgba(253,248,244,.78);border:1px solid rgba(255,255,255,.78);border-radius:25px;backdrop-filter:blur(28px);-webkit-backdrop-filter:blur(28px);box-shadow:0 25px 65px rgba(6,7,11,.25);opacity:0;pointer-events:none;transition:opacity .45s ease,transform .55s cubic-bezier(.16,1,.3,1);z-index:3}.focus-question.has-insight{opacity:1;transform:translate(-50%,0);pointer-events:auto}.focus-point{display:none}.focus-point.shown{display:block;animation:insight-in .42s ease both}@keyframes insight-in{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}.focus-point span{display:block;color:#9b5d56;font-size:clamp(15px,1vw,19px);font-weight:750;letter-spacing:.02em;margin-bottom:10px}.focus-point h3{color:#242127;font-size:clamp(34px,2.8vw,55px);font-weight:800;line-height:1.15;letter-spacing:-.055em;margin:0 0 8px}.focus-point p{color:#554e56;font-size:clamp(21px,1.45vw,28px);font-weight:550;line-height:1.43;margin:0}
@media(max-width:900px){.scene.active{transform:none}.focus-view{position:fixed!important;inset:0!important;width:100vw!important;height:100dvh!important;display:block!important}.account.focus-mode .focus-view{display:block!important}.focus-view img{width:100%;height:100%;object-fit:contain}.focus-question{bottom:22px;width:calc(100vw - 28px);min-height:0;padding:20px 22px;border-radius:18px}.focus-point h3{font-size:clamp(28px,7vw,39px)}.focus-point p{font-size:clamp(17px,4.5vw,22px)}.focus-close{top:16px;right:16px}}
@media(max-height:800px) and (min-width:901px){.scene.evidence{padding-top:18px;padding-bottom:18px;gap:15px}.evidence .scene-head .eyebrow{margin-bottom:9px}.evidence .scene-head h2{font-size:clamp(43px,3.55vw,67px);margin-bottom:10px}.evidence .scene-head .lead{font-size:20px;line-height:1.35;margin-bottom:0}.evidence-panel{padding:22px}.evidence-panel h3{margin-bottom:7px;font-size:27px}.evidence-panel>p{font-size:17px;line-height:1.35;margin-bottom:14px}.video-links a{min-height:51px;font-size:17px;padding:8px 12px}.framework-chain .point{min-height:95px;padding:15px 18px}.framework-chain .point h3{font-size:25px}.framework-chain .point p{font-size:17px}}

/* 保持明亮底色，让章节色彩在整页自然过渡 */
.scene{--slide-mid:#eedfe5;--slide-end:#e2e9f3;background:radial-gradient(ellipse at 82% 17%,var(--wash) 0%,transparent 63%),radial-gradient(ellipse at 5% 85%,var(--wash-2) 0%,transparent 64%),linear-gradient(122deg,#fffaf6 0%,var(--slide-mid) 57%,var(--slide-end) 100%)}
.scene.tone-sunset{--wash:rgba(244,147,115,.78);--wash-2:rgba(182,149,223,.66);--slide-mid:#f9d9d2;--slide-end:#dfd9f6}
.scene.tone-sea{--wash:rgba(98,198,187,.72);--wash-2:rgba(146,181,227,.58);--slide-mid:#d6f0eb;--slide-end:#d9e5f7}
.scene.tone-rose{--wash:rgba(246,143,167,.73);--wash-2:rgba(176,151,227,.57);--slide-mid:#f7d9df;--slide-end:#e5dcf5}
.scene.tone-violet{--wash:rgba(170,143,227,.72);--wash-2:rgba(246,179,145,.6);--slide-mid:#e9dcfa;--slide-end:#f6dfd6}
.scene.tone-gold{--wash:rgba(247,192,103,.75);--wash-2:rgba(121,198,184,.59);--slide-mid:#f9e9cb;--slide-end:#dbf0e9}
.scene.cover{overflow:hidden!important;background:radial-gradient(ellipse at 82% 35%,rgba(226,147,192,.56),transparent 61%),radial-gradient(ellipse at 11% 85%,rgba(179,154,229,.55),transparent 60%),linear-gradient(118deg,#fffaf4 3%,#fbdccf 53%,#d9e2fb 100%)}
.scene h2 em{background:linear-gradient(98deg,var(--accent),#635ca8);background-clip:text;-webkit-background-clip:text;color:transparent}
.scene.cover h1 em{background:linear-gradient(95deg,#c95f4d 0%,#a44e7f 52%,#595db0 100%);background-clip:text;-webkit-background-clip:text;color:transparent}
.topbar,.toolbar{background:rgba(255,251,248,.76)}
@media(max-width:900px){.scene.cover{overflow-y:auto!important}}