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@media(max-width:620px){.catalog-row .product-mini{display:none}}
@media(min-width:621px) and (max-width:750px){.insight{gap:25px}.insight h2{font-size:26px}.insight-copy>p{font-size:13px}.time-compare{gap:15px}.time-compare strong{font-size:26px}}
/* 对话内容占据更多空间，回答正文与头像左边缘对齐。 */
.table-scroll{height:120px;min-height:120px;max-height:120px}
.chat-demo{height:290px;padding-top:16px}
.assistant-message{display:grid;grid-template-columns:19px minmax(0,1fr);column-gap:8px;row-gap:7px;align-items:center}
.assistant-message>div{display:contents}
.assistant-message img{grid-column:1;grid-row:1}
.assistant-message strong{grid-column:2;grid-row:1}
.assistant-message p{grid-column:1/-1;grid-row:2;margin:0;min-width:0}
/* 标签、数值与箭头分别落在一致的行上。 */
.time-compare{display:grid;grid-template-columns:max-content max-content max-content;grid-template-rows:auto auto auto;column-gap:25px;row-gap:8px;align-items:center}
.time-compare>div{display:contents}
.time-compare small{grid-row:1;line-height:1.5}
.time-compare strong{grid-row:2;margin:0;line-height:1.15}
.time-compare span{grid-row:3;line-height:1.5}
.time-compare>div:first-child>*{grid-column:1}
.time-compare>div:last-child>*{grid-column:3}
.time-compare>b{grid-row:2;grid-column:2;line-height:1;align-self:center}
@media(max-width:900px){.time-compare{column-gap:18px}}
@media(min-width:621px) and (max-width:750px){.time-compare{column-gap:15px}}
@media(max-width:620px){.table-scroll{height:110px;min-height:110px;max-height:110px}.chat-demo{height:270px}.assistant-message{grid-template-columns:15px minmax(0,1fr);column-gap:5px;row-gap:7px}.time-compare{column-gap:18px}}
/* 流程图使用统一坐标，节点和连线随容器等比缩放。 */
.flow-grid>article{min-width:0}
.complex-flow{width:100%;max-width:480px;margin:20px auto 0}
.factory-diagram{display:block;width:100%;height:auto;overflow:visible;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif}
@media(max-width:620px){.complex-flow{max-width:480px;margin:22px auto 0}}
/* 千粒：随着浏览逐步开始工作的动效。 */
@keyframes halo-drift{from{transform:translate3d(-25px,8px,0) scale(.97)}to{transform:translate3d(35px,-22px,0) scale(1.07)}}
@keyframes gradient-shift{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}
@keyframes flow-draw{to{stroke-dashoffset:0}}
@keyframes node-light{0%{stroke:#d8e9ff;fill:white}45%{stroke:#2787ff;fill:#eaf5ff}100%{stroke:#a5d4ff;fill:#f7fbff}}
@keyframes bar-grow{from{transform:scaleY(.025)}to{transform:scaleY(1)}}
@keyframes product-arrive{from{opacity:0;transform:translate3d(-12px,6px,0) scale(.9)}to{opacity:1;transform:translate3d(0,0,0) scale(1)}}
@keyframes fade-label{from{opacity:0}to{opacity:1}}
.motion-ready .halo{animation:halo-drift 10s ease-in-out infinite alternate}
.motion-ready .halo-two{animation-delay:-5s}
.motion-ready .gradient{background-size:200% 100%;animation:gradient-shift 8s ease-in-out infinite}
.motion-ready .motion-reveal{opacity:0;transform:translate3d(0,22px,0);transition:opacity .65s ease var(--reveal-delay,0ms),transform .75s cubic-bezier(.22,1,.36,1) var(--reveal-delay,0ms)}
.motion-ready .motion-reveal.is-visible{opacity:1;transform:translate3d(0,0,0)}
.motion-ready .app-window{transform:translate3d(0,28px,0) scale(.985)}
.motion-ready .app-window.is-visible{transform:translate3d(0,0,0) scale(1)}
.flow-base{stroke:#e2edfc}
.motion-ready .flow-trace{stroke:#3690ff;stroke-dasharray:var(--path-length);stroke-dashoffset:var(--path-length)}
.motion-ready .flow-running .flow-trace{animation:flow-draw .65s cubic-bezier(.22,1,.36,1) var(--flow-delay) forwards}
.motion-ready .flow-running .flow-stage rect{animation:node-light 1s ease var(--stage-delay) both}
.motion-ready .simple-flow.flow-running .flow-node{animation:product-arrive .55s ease both}
.motion-ready .simple-flow.flow-running .flow-node:nth-of-type(2){animation-delay:.25s}
.motion-ready .simple-flow.flow-running .flow-node:nth-of-type(3){animation-delay:.5s}
.motion-ready .analysis-card:not(.chart-ready) .bar{transform:scaleY(.025)}
.motion-ready .chart-ready .bar{transform-origin:bottom;animation:bar-grow .85s cubic-bezier(.22,1,.36,1) both}
.motion-ready .chart-ready .bar-col:nth-child(2) .bar{animation-delay:.1s}
.motion-ready .chart-ready .bar-col:nth-child(3) .bar{animation-delay:.2s}
.motion-ready .chart-ready .bar-col:nth-child(4) .bar{animation-delay:.3s}
.motion-ready .chart-ready .bar-value{animation:fade-label .25s .7s both}
.motion-ready .showroom:not(.sync-running) .product-art img{opacity:0}
.motion-ready .sync-running .product-art img{animation:product-arrive .65s cubic-bezier(.22,1,.36,1) var(--product-delay) both}
.product-flight{position:absolute;left:0;top:0;object-fit:contain;pointer-events:none;z-index:5;filter:drop-shadow(0 8px 12px #3582cf25)}
.reading-progress{position:fixed;left:0;top:0;width:100%;height:2px;background:linear-gradient(90deg,#1679ff,#12d7cc);z-index:100;transform-origin:left;pointer-events:none}
.button{position:relative;overflow:hidden;transition:transform .25s,box-shadow .25s}
.button:after{content:"";position:absolute;inset:-40% auto -40% -70%;width:35%;background:linear-gradient(90deg,transparent,#fff4,transparent);transform:skewX(-22deg);transition:left .6s;pointer-events:none}
.button:hover:after{left:140%}
.button:active{transform:translateY(0) scale(.97)}
.product{transition:transform .3s,box-shadow .3s}
.product:hover{transform:translateY(-4px);box-shadow:0 8px 18px #247acb17}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}.motion-reveal{opacity:1!important;transform:none!important}.bar{transform:none!important}.product-art img{opacity:1!important}.flow-trace{stroke-dashoffset:0!important}.reading-progress,.product-flight{display:none!important}}
/* 飞入图片保持在展厅范围内，切换屏幕尺寸时不会撑宽页面。 */
.showroom{overflow:clip;overflow-clip-margin:16px}
.motion-ready .bar{transform-origin:bottom}
/* 对话先出现，再随滚动归位，内容在停留的画面中向前展开。 */
.scene-mode .scroll-scene{position:relative;width:100%;background:#fff}
.scene-mode .scene-viewport{position:sticky;top:0;height:var(--scene-height,100svh);overflow:clip;background:radial-gradient(ellipse at 50% 52%,#f5fbff 0,white 65%);isolation:isolate}
.scene-mode .scene-content{height:100%;display:flex;align-items:center;justify-content:center;width:100%;perspective:1200px}
.scene-mode .scene-surface.section{width:100%;flex-shrink:0;margin:0;padding-top:30px;padding-bottom:30px;transform-origin:center center}
.scene-mode .scene-prompt{position:relative;z-index:8;background:#fff;transform-origin:center;will-change:transform;transition:none}
.scene-mode .scene-piece{transform-origin:center;will-change:transform,opacity;transition:none}
.scene-hint{position:absolute;top:calc(47% + 56px);left:0;width:100%;text-align:center;font-size:11px;letter-spacing:1px;color:#8399b4;pointer-events:none}
.scene-mode .scene-surface .flow-trace{animation:none!important;stroke:#3690ff}
.scene-mode .scene-surface .flow-stage rect{animation:none!important}
.scene-mode .scene-surface .bar{animation:none!important;transform-origin:bottom}
.scene-mode .scene-surface .bar-value{animation:none!important}
.scene-mode .scene-surface .product-art img{animation:none!important;transition:none}
.scene-mode .scene-surface .showroom:not(.sync-running) .product-art img{opacity:1}
.scene-mode .scroll-scene.is-expanded{height:auto!important}
.scene-mode .is-expanded .scene-viewport{position:relative;height:auto;min-height:100svh;overflow:visible}
.scene-mode .is-expanded .scene-content{height:auto;min-height:100svh}
.scene-mode .is-expanded .scene-surface{transform:none!important}
@media(max-width:620px){.scene-mode .scene-surface.section{padding-top:20px;padding-bottom:20px}.scene-mode .scene-surface .flow-grid article{min-height:0;padding-top:18px;padding-bottom:18px}.scene-mode .scene-surface .simple-flow{margin-top:20px}.scene-mode .scene-surface.insight{gap:20px}.scene-mode .scene-surface .insight-copy>p{margin-top:12px}.scene-mode .scene-surface .time-compare{margin-top:18px}.scene-hint{font-size:10px}}
/* 向下展开这一幕时，柔和光晕与内容动效一起启动。 */
.scene-mode .scene-viewport:before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 18% 58%,#d9efff80,transparent 55%),radial-gradient(ellipse at 83% 40%,#d6f9f67a,transparent 50%);opacity:0;pointer-events:none;z-index:-1}
.scene-mode .scroll-scene[data-effect="playing"] .scene-viewport:before{opacity:1;animation:halo-drift 9s ease-in-out infinite alternate;transition:opacity .7s}
@media(prefers-reduced-motion:reduce){.scene-viewport:before{display:none}}
/* 工艺问答使用原料对照表与参数卡，而非柱状图。 */
.chart.process-view{display:block;height:auto;padding:12px;background:#f9fcff;border:1px solid #e4edf8}
.process-view h4{font-size:11px;color:#314e75;margin:0 0 6px}
.process-materials p{font-size:9px;color:#7b8ca2;line-height:1.7;overflow-wrap:anywhere}
.process-materials b{color:#567494;font-weight:600}
.process-table-wrap{overflow-x:auto;margin:10px 0 11px;border:1px solid #e1eafa;border-radius:5px}
.process-table{width:100%;font-size:9px;background:white}
.process-table caption{text-align:left;font-size:8px;color:#94a4b9;padding:6px 8px;background:#f5f9ff;caption-side:bottom}
.process-table td,.process-table th{padding:7px 6px;text-align:left;font-size:9px;position:static}
.process-table tbody th{background:#fbfdff;font-weight:500;color:#637a98}
.process-parameters dl{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:5px;margin:0}
.process-parameters dl>div{padding:7px 5px;background:#edf5ff;border-radius:4px;text-align:center;min-width:0}
.process-parameters dt{font-size:8px;color:#8a9bb2}
.process-parameters dd{font-size:10px;font-weight:600;color:#3179cb;margin:4px 0 0;white-space:nowrap}
.process-requirements{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:11px;border-top:1px solid #e5edf8;padding-top:10px}
.process-requirements h4{font-size:10px;margin-bottom:4px}
.process-requirements p{font-size:9px;line-height:1.75;color:#7488a1}
@media(max-width:620px){.chart.process-view{padding:9px}.process-table td,.process-table th{font-size:8px;padding:6px 4px}.process-materials p{font-size:8px}.process-parameters dl{gap:3px}.process-parameters dd{font-size:9px}.process-parameters dt{font-size:7px}.process-requirements p{font-size:8px}}
/* 两处登录入口与预约按钮并排，采用蓝色描边。 */
.hero-actions{display:flex;align-items:center;justify-content:center;gap:12px}
.button.button-secondary{background:#fff;color:#086dff;border:1px solid #b5d6ff;box-shadow:0 4px 12px #146cff0b}
.button.button-secondary:hover{background:#f2f8ff;border-color:#5ca2ff;box-shadow:0 7px 18px #146cff1c}
.hero-actions .button{min-height:42px;min-width:118px}
.nav .login-button{margin-left:-20px}
@media(max-width:620px){.nav nav{gap:12px}.nav .login-button{margin-left:-4px}.nav .button.small{padding:8px 10px}.hero-actions{gap:10px}.hero-actions .button{min-height:38px;min-width:104px}.nav nav>a[href="#stories"]{display:none}}
/* 登录入口：蓝青光环、玻璃底色与悬停流光。 */
@property --login-angle{syntax:'';initial-value:0deg;inherits:false}
@keyframes login-orbit{to{--login-angle:360deg}}
.button.login-button{--login-angle:0deg;gap:12px;border:1.5px solid transparent;color:#0764dd;background:linear-gradient(120deg,#f9fdff,#eafaff) padding-box,conic-gradient(from var(--login-angle),#1683ff,#54ddf1,#03bfc5,#2974ff,#1683ff) border-box;box-shadow:0 3px 12px #0987e51a,inset 0 1px 0 #ffffffb3;animation:login-orbit 5s linear infinite;font-weight:700;isolation:isolate;transition:transform .25s,box-shadow .25s,color .25s;white-space:nowrap}
.button.login-button:before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 10% 90%,#20cddd25,transparent 65%);z-index:-1;pointer-events:none}
.button.login-button:after{width:45%;background:linear-gradient(90deg,transparent,#fff9,transparent)}
.button.login-button:hover{color:#005ac9;background:linear-gradient(120deg,#f2fbff,#e0f9fc) padding-box,conic-gradient(from var(--login-angle),#1683ff,#54ddf1,#03bfc5,#2974ff,#1683ff) border-box;box-shadow:0 5px 22px #0ba3e530,0 0 8px #10c5d520;transform:translateY(-2px)}
.login-arrow{display:inline-block;color:#079bc5;font-size:15px;line-height:1;transition:transform .25s}
.login-button:hover .login-arrow{transform:translate(2px,-2px)}
.login-button:active{transform:translateY(0) scale(.97)}
.nav .login-button.small{padding:9px 16px;gap:8px}
.hero-actions .login-button{padding-left:26px;padding-right:26px}
@media(max-width:620px){.nav .login-button.small{padding:8px 11px;gap:6px}.hero-actions .login-button{padding-left:22px;padding-right:22px}.login-arrow{font-size:13px}}
@media(prefers-reduced-motion:reduce){.button.login-button{animation:none}.login-button:hover .login-arrow{transform:none}}
.login-orbit-icon{width:21px;height:21px;flex-shrink:0;transition:transform .35s}.login-button:hover .login-orbit-icon{transform:rotate(-12deg) scale(1.1)}.nav .login-orbit-icon{width:18px;height:18px}
@media(prefers-reduced-motion:reduce){.login-button:hover .login-orbit-icon{transform:none}}
/* 顶部登录保持普通描边样式，无图标或动效。 */
.nav .nav-login-button{margin-left:-20px;animation:none;transition:none;background:#fff;color:#076bff;box-shadow:none}
.nav .nav-login-button:before,.nav .nav-login-button:after{display:none}
.nav .nav-login-button:hover,.nav .nav-login-button:active{transform:none;box-shadow:none;background:#f4f8ff}
@media(max-width:620px){.nav .nav-login-button{margin-left:-4px}}