/* Qingru growth overview and detailed sequence. Shared brand fonts and 400/600 weights.
   Navy: first purchase and result. Muted gold: post-purchase retention. */
.growth-summary,.growth-model-body{color:#536277}.growth-summary h3,.growth-summary h4,.growth-model-body h1,.growth-model-body h2,.growth-model-body h3{margin:0;color:var(--navy);font-weight:600;letter-spacing:-.02em}.growth-summary{scroll-margin-top:105px;margin-top:38px;padding-top:32px;border-top:1px solid #dce3ed}.growth-summary h3{font-size:32px;line-height:1.45}.growth-summary h3>span{display:inline-block;white-space:nowrap}.growth-summary-lead{font-size:17px;line-height:1.85;max-width:850px;margin-top:14px}.summary-example-label{font-size:12px;color:#6c7b91;line-height:1.8;margin-top:24px;scroll-margin-top:105px}.summary-path{display:grid;grid-template-columns:1.15fr 1fr 1fr;list-style:none;padding:0;margin:14px 0 0;border-block:1px solid #dce3ed}.summary-path>li{position:relative;min-width:0;padding:24px 24px 23px;border-right:1px solid #dce3ed;scroll-margin-top:105px}.summary-path>li:first-child{padding-left:0}.summary-path>li:last-child{border:0;padding-right:0}.summary-step{font-size:12px;color:#6c7b91;line-height:1.8;margin-bottom:14px}.summary-path h4{font-size:21px;line-height:1.5;min-height:63px}.summary-path h4>strong{font-size:27px;font-weight:600}.summary-work{display:grid;gap:15px;margin-top:14px}.summary-work p{font-size:14px;line-height:1.9}.summary-work a{display:block;font-size:15px;color:var(--blue);font-weight:600;margin-bottom:3px}.summary-work span{display:block}.summary-calculation{font-size:13px;line-height:1.9;color:#64758d;margin-top:12px}.summary-sales{margin-top:21px}.summary-sales>span{display:block;font-size:13px;line-height:1.8;color:#64758d}.summary-sales>strong{font-size:49px;line-height:1.3;letter-spacing:-.035em;color:var(--navy);font-weight:600}.summary-sales small{font-size:15px;letter-spacing:0;margin-left:5px;font-weight:400}.repeat-sales>strong{color:#866a38}.summary-result{display:flex;justify-content:space-between;align-items:center;gap:30px;margin-top:23px;scroll-margin-top:105px}.summary-result>div>p{font-size:13px;color:#64758d;line-height:1.8}.summary-profit{display:flex;align-items:baseline;gap:19px;color:var(--navy);margin-top:5px;white-space:nowrap;font-variant-numeric:tabular-nums}.summary-profit>span{font-size:14px;color:#64758d}.summary-profit b{font-size:27px;color:#64758d;font-weight:600;margin-inline:4px}.summary-profit i{font-style:normal;font-size:25px;color:#8b9bb0}.summary-profit>strong{font-size:54px;line-height:1.2;font-weight:600;letter-spacing:-.04em}.summary-profit small{font-size:16px;font-weight:400;letter-spacing:0;margin-left:6px}.summary-result>.text-link{font-size:15px;white-space:nowrap}.summary-scope{font-size:12px;line-height:1.9;margin-top:15px;color:#6c7b91;max-width:940px}.growth-summary a:focus-visible,.growth-model-body a:focus-visible,.model-disclosure summary:focus-visible,.model-table-scroll:focus-visible{outline:2px solid var(--blue);outline-offset:5px}
.growth-model-body{max-width:1120px}.model-hero{padding:48px 0 28px;border-bottom:1px solid #dce3ed}.model-hero .back-link{font-size:14px;color:#64758d;margin-bottom:23px;display:inline-block}.model-hero h1{font-size:48px;line-height:1.35}.model-hero>p{font-size:19px;line-height:1.9;max-width:900px;margin-top:21px}.model-index{display:flex;gap:28px;flex-wrap:wrap;margin-top:27px;font-size:15px;line-height:1.8}.model-index>a{color:var(--blue)}
.model-stage{padding:35px 0;border-bottom:1px solid #dce3ed;scroll-margin-top:105px}.model-stage-label{font-size:13px;color:#6c7b91;line-height:1.8;margin-bottom:13px}.model-stage h2,.model-methods>h2{font-size:29px;line-height:1.5}.model-stage>p:not(.model-stage-label):not(.model-note){font-size:17px;line-height:1.9;max-width:900px;margin-top:15px}.model-equation,.model-revenue-equation{display:flex;gap:19px;align-items:baseline;flex-wrap:wrap;font-size:21px;line-height:1.8;color:#263e55;margin-top:26px}.model-equation>strong,.model-revenue-equation>strong{font-size:27px;color:var(--navy);font-weight:600}.model-equation>i,.model-revenue-equation>i{font-size:22px;font-style:normal;color:#8b9bb0}.model-stage-total{margin-top:22px;display:grid;grid-template-columns:1fr auto;gap:8px 30px;align-items:center;max-width:800px}.model-stage-total>p{font-size:16px;line-height:1.8;grid-column:1;grid-row:1}.model-stage-total>strong{grid-column:2;grid-row:1 / 3;font-size:40px;line-height:1.4;color:var(--navy);font-weight:600;letter-spacing:-.035em}.model-stage-total small{font-size:16px;font-weight:400;letter-spacing:0;margin-left:5px}.model-stage-total>span{font-size:14px;color:#64758d;grid-column:1;grid-row:2;line-height:1.8}.model-note,.model-scope{font-size:13px;line-height:1.9;color:#6c7b91;margin-top:21px;max-width:950px}.model-repeat-stage .model-stage-label{color:#866a38}.model-repeat-stage .model-stage-total>strong{color:#866a38}.model-repeat-stage h2>span{display:inline-block;white-space:nowrap}.model-customer-base{display:inline-block;color:#866a38;font-size:15px;line-height:1.8;margin-top:20px;border-bottom:1px solid #cdbb96;padding-bottom:4px}.model-costs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));padding:0;margin:25px 0 0;gap:27px}.model-costs>div{padding:18px 0;border-top:1px solid #dce3ed}.model-costs dt{font-size:14px;line-height:1.8;color:#64758d}.model-costs dd{font-size:35px;line-height:1.4;color:var(--navy);font-weight:600;margin:13px 0 0;letter-spacing:-.025em;font-variant-numeric:tabular-nums}.model-costs dd>small{font-size:14px;font-weight:400;margin-left:6px;letter-spacing:0}.model-overall{display:flex;gap:40px;align-items:center;justify-content:space-between;margin-top:29px;padding-top:25px;border-top:1px solid #dce3ed;scroll-margin-top:105px}.model-overall>div>p,.model-overall>p>span{font-size:14px;line-height:1.8;color:#64758d}.model-profit-comparison{display:flex;align-items:baseline;gap:22px;font-variant-numeric:tabular-nums;white-space:nowrap;margin-top:9px}.model-profit-comparison>span{font-size:35px;color:#64758d}.model-profit-comparison small{font-size:16px;margin-left:5px;font-weight:400}.model-profit-comparison i{font-size:27px;color:#8b9bb0;font-style:normal}.model-profit-comparison>strong{font-size:67px;color:var(--navy);line-height:1.2;letter-spacing:-.04em;font-weight:600}.model-overall>p{display:flex;flex-direction:column;gap:8px}.model-overall>p>strong{font-size:43px;line-height:1.2;color:var(--navy);font-weight:600}.model-overall>p>strong>small{font-size:17px;font-weight:400;margin-left:6px}
.model-methods{padding-top:34px}.model-methods>h2{margin-bottom:17px}.model-disclosure{border-bottom:1px solid #dce3ed;scroll-margin-top:105px}.model-disclosure>summary{position:relative;list-style:none;display:flex;justify-content:space-between;gap:24px;padding:23px 29px 23px 0;font-size:17px;line-height:1.6;color:#263e55;cursor:pointer}.model-disclosure>summary::-webkit-details-marker{display:none}.model-disclosure>summary:after{content:'+';position:absolute;right:0;font-size:23px;color:#64758d;top:21px}.model-disclosure[open]>summary:after{content:'−'}.model-disclosure>summary>b{font-size:14px;white-space:nowrap;font-weight:400;color:var(--blue)}.model-disclosure-body{padding:2px 0 26px}.model-disclosure-body>p{font-size:16px;line-height:1.9;max-width:950px}.model-disclosure-body>p+p{margin-top:19px}.model-disclosure-body strong{font-weight:600;color:var(--navy)}.model-rate-comparison{display:grid;grid-template-columns:1fr 30px 1fr;gap:25px;align-items:center;margin:23px 0}.model-rate-comparison>div>span{display:block;font-size:14px;color:#64758d;line-height:1.8}.model-rate-comparison>div>strong{display:block;font-size:25px;line-height:1.5;margin-top:9px}.model-rate-comparison p{font-size:14px;line-height:1.8;margin-top:9px}.model-rate-comparison>span{text-align:center;color:#a38c5c;font-size:24px}.model-table-scroll{overflow-x:auto;margin-top:24px;scrollbar-width:thin;scrollbar-color:#bac8da transparent}.model-table{border-collapse:collapse;width:100%;font-size:15px;color:#536277;font-variant-numeric:tabular-nums}.model-table caption{text-align:left;font-size:15px;font-weight:600;line-height:1.8;margin-bottom:12px;color:#263e55}.model-table th,.model-table td{padding:12px 15px;text-align:right;border-bottom:1px solid #e4e9f1}.model-table th:first-child{text-align:left;padding-left:0}.model-table th{font-weight:400}.model-table thead{font-size:13px;color:#64758d}.model-table .table-profit>*{font-size:20px;color:var(--navy);font-weight:600;border:0;padding-top:19px}.model-scope{margin:28px 0 46px}
.retention-theory{display:grid;grid-template-columns:1fr 1fr;gap:35px;padding-top:12px}.retention-theory .eyebrow{font-size:12px;color:#866a38;margin-bottom:13px}.retention-theory h3{font-size:25px;line-height:1.5}.retention-theory>div>p:not(.eyebrow){font-size:16px;line-height:1.95;margin-top:17px}.loyalty-reference{padding:22px 25px;background:#faf8f3;border-left:1px solid #b59555;align-self:start}.loyalty-findings{display:grid;grid-template-columns:auto 25px 1fr;gap:12px;align-items:center;margin-top:22px}.loyalty-findings strong{font-size:43px;line-height:1.2;white-space:nowrap;color:var(--navy);font-weight:600;letter-spacing:-.04em}.loyalty-findings small{font-size:17px;margin-left:3px}.loyalty-findings>div>span{display:block;font-size:12px;line-height:1.8;color:#64758d;margin-top:8px}.reference-arrow{font-size:22px;color:#866a38}.loyalty-reference>p:not(.eyebrow){font-size:14px;line-height:1.9;margin-top:21px}.loyalty-reference>a{display:inline-block;font-size:13px;color:var(--blue);line-height:1.8;margin-top:15px}
.growth-work-map{margin-top:48px;scroll-margin-top:105px}
.work-map-heading{display:grid;grid-template-columns:.7fr 1fr;gap:48px;align-items:start}.work-map-heading h2{font-size:29px;line-height:1.5;font-weight:600;color:var(--navy)}.work-map-heading>p{font-size:17px;line-height:1.9;color:#536277}
.work-business-links{display:flex;align-items:center;gap:19px;flex-wrap:wrap;margin-top:22px;font-size:16px;line-height:1.8}.work-business-links>a{color:var(--navy);font-weight:600}.work-business-links>a:last-child{color:#866a38}.work-business-links>a>span{font-size:19px;font-weight:400;margin-left:10px}.work-business-links>span{font-size:21px;color:#8b9bb0}
.work-parameters{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));list-style:none;padding:0;margin:28px 0 0;border-block:1px solid #dce3ed}.work-parameters>li{display:flex;flex-direction:column;position:relative;min-width:0;padding:28px 22px 29px;border-right:1px solid #dce3ed}.work-parameters>li:first-child{padding-left:0}.work-parameters>li:last-child{border-right:0;padding-right:0}.work-parameter-icon{width:34px;height:34px;margin-bottom:21px;color:var(--navy)}.work-parameters>li:first-child .work-parameter-icon{color:#866a38}.work-parameter-icon svg,.work-feedback svg{display:block;width:100%;height:100%;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.work-business-label{font-size:12px;line-height:1.8;color:#6c7b91;margin-bottom:9px}.work-parameters h3{font-size:24px;line-height:1.4;font-weight:600;color:var(--navy)}.work-parameter-goal{font-size:15px;line-height:1.85;color:#263e55;margin-top:13px;min-height:56px}.work-parameters ul{margin:18px 0 0;padding-left:16px;color:#536277;font-size:15px;line-height:1.9}.work-parameters ul>li+li{margin-top:9px}.work-parameters ul>li::marker{font-size:9px;color:#8b9bb0}.work-parameters>li>a{display:inline-block;font-size:14px;line-height:1.8;color:var(--blue);margin-top:auto;padding-top:24px}.work-parameters>li>a>span{margin-left:5px}.work-parameters a:focus-visible,.work-business-links a:focus-visible{outline:2px solid var(--blue);outline-offset:5px;border-radius:2px}
.work-feedback{display:flex;align-items:flex-start;gap:17px;margin-top:23px;color:#866a38}.work-feedback>svg{width:25px;height:25px;flex:none;margin-top:2px}.work-feedback>p{font-size:15px;line-height:1.9;color:#64758d}.work-feedback strong{font-weight:600;color:var(--navy);margin-right:7px}
@media(max-width:1050px){.work-map-heading{gap:30px}.work-parameters{grid-template-columns:repeat(2,minmax(0,1fr))}.work-parameters>li:nth-child(2){border-right:0;padding-right:0}.work-parameters>li:nth-child(3){padding-left:0;border-top:1px solid #dce3ed}.work-parameters>li:nth-child(4){border-top:1px solid #dce3ed}.work-parameter-goal{min-height:0}.work-parameters ul{font-size:16px}.work-parameters>li>a{font-size:15px}}
@media(max-width:600px){.growth-work-map{margin-top:32px}.work-map-heading{grid-template-columns:1fr;gap:13px}.work-map-heading h2{font-size:26px}.work-map-heading>p{font-size:16px}.work-business-links{gap:14px;font-size:15px;margin-top:17px}.work-business-links>a>span{margin-left:4px}.work-parameters{grid-template-columns:1fr;margin-top:22px}.work-parameters>li,.work-parameters>li:first-child,.work-parameters>li:last-child,.work-parameters>li:nth-child(2),.work-parameters>li:nth-child(3){padding:23px 0 25px;border-right:0}.work-parameters>li+li{border-top:1px solid #dce3ed}.work-parameter-icon{position:absolute;right:0;top:23px;width:32px;height:32px;margin:0}.work-business-label{padding-right:48px;margin-bottom:7px}.work-parameters h3{font-size:23px;padding-right:48px}.work-parameter-goal{font-size:16px;margin-top:12px}.work-parameters ul{font-size:16px;margin-top:14px}.work-parameters ul>li+li{margin-top:6px}.work-parameters>li>a{margin-top:0;padding-top:17px}.work-feedback{gap:12px;margin-top:19px}.work-feedback>p{font-size:14px}.work-feedback strong{display:block;margin:0 0 4px}.work-feedback>svg{width:23px;height:23px}}
/* Responsive views retain the causal sequence rather than shrinking the text. */
@media(max-width:1050px){.summary-path{grid-template-columns:1fr 1fr}.summary-path>li:first-child{grid-column:1 / -1;border-right:0;padding:22px 0;border-bottom:1px solid #dce3ed}.summary-path>li:nth-child(2){padding-left:0}.summary-work{grid-template-columns:1fr 1fr;gap:30px;margin-top:12px}.summary-path h4{min-height:0}.summary-result{gap:20px}.retention-theory{grid-template-columns:1fr;gap:24px}.growth-model-body{max-width:1000px}.model-stage-total{max-width:none}}
@media(max-width:600px){.growth-summary{margin-top:29px;padding-top:25px}.growth-summary h3{font-size:27px}.growth-summary-lead{font-size:16px;margin-top:13px}.summary-example-label{margin-top:20px}.summary-path{grid-template-columns:1fr}.summary-path>li,.summary-path>li:first-child,.summary-path>li:nth-child(2),.summary-path>li:last-child{padding:21px 0;border-right:0;border-bottom:1px solid #dce3ed}.summary-path>li:last-child{border-bottom:0}.summary-step{margin-bottom:11px}.summary-path h4{font-size:21px}.summary-path h4>strong{font-size:25px}.summary-work{grid-template-columns:1fr;gap:12px}.summary-work p{font-size:15px}.summary-sales{margin-top:15px}.summary-sales>strong{font-size:43px}.summary-calculation{font-size:13px;margin-top:8px}.summary-result{align-items:flex-start;flex-direction:column;gap:18px;margin-top:20px}.summary-profit{gap:13px}.summary-profit b{font-size:24px}.summary-profit>strong{font-size:43px}.summary-profit>strong>small{font-size:14px}.summary-result>.text-link{font-size:15px}.summary-scope{font-size:12px;margin-top:16px}.model-hero{padding-top:31px}.model-hero h1{font-size:30px}.model-hero>p{font-size:17px;margin-top:17px}.model-index{font-size:14px;gap:13px 23px;margin-top:23px}.model-stage{padding:29px 0}.model-stage h2,.model-methods>h2{font-size:25px}.model-stage>p:not(.model-stage-label):not(.model-note){font-size:16px}.model-equation,.model-revenue-equation{gap:6px 11px;font-size:17px;line-height:1.9;margin-top:21px}.model-equation>strong,.model-revenue-equation>strong{font-size:23px;flex-basis:100%}.model-equation>i,.model-revenue-equation>i{font-size:18px}.model-stage-total{grid-template-columns:1fr;gap:8px;margin-top:20px}.model-stage-total>p{font-size:15px;grid-row:1}.model-stage-total>strong{grid-column:1;grid-row:2;font-size:34px}.model-stage-total>span{grid-row:3;font-size:14px}.model-note{font-size:12px;margin-top:17px}.model-customer-base{font-size:14px}.model-costs{grid-template-columns:1fr;gap:0;margin-top:21px}.model-costs>div{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:15px 0}.model-costs dt{font-size:14px}.model-costs dd{font-size:29px;margin:0}.model-costs dd>small{font-size:12px}.model-overall{flex-direction:column;align-items:flex-start;gap:20px;margin-top:23px;padding-top:22px}.model-overall>div>p{font-size:13px}.model-profit-comparison{gap:14px}.model-profit-comparison>span{font-size:29px}.model-profit-comparison>strong{font-size:48px}.model-profit-comparison small{font-size:14px}.model-overall>p>strong{font-size:36px}.model-overall>p>span{font-size:13px}.model-disclosure>summary{font-size:16px;flex-direction:column;gap:5px;padding-block:18px}.model-disclosure>summary:after{top:20px}.model-disclosure>summary>b{font-size:13px}.model-disclosure-body>p{font-size:15px}.model-rate-comparison{grid-template-columns:1fr;gap:14px}.model-rate-comparison>span{text-align:left}.model-rate-comparison>div>strong{font-size:23px;margin-top:5px}.model-table{min-width:530px;font-size:14px}.model-table th,.model-table td{padding:11px 12px}.model-scope{font-size:12px}.loyalty-reference{padding:21px 18px}.loyalty-findings{grid-template-columns:auto 19px 1fr;gap:9px}.loyalty-findings strong{font-size:36px}.loyalty-findings small{font-size:15px}.retention-theory h3{font-size:24px}}