/* 一级保留概览；二级详情只在用户主动打开后显示。 */
[hidden]{display:none!important}
html{scrollbar-gutter:stable}
/* 锚点以板块标题为落点：抵消原有滚动预留和板块留白，导航下保留 32px，手机保留 24px。 */
#sales,#operations,#ai{scroll-margin-top:calc(94px + 32px - 108px - 112px)}
@media(max-width:1100px){#sales,#operations,#ai{scroll-margin-top:calc(94px + 32px - 108px - 86px)}}
@media(max-width:850px){#sales,#operations,#ai{scroll-margin-top:calc(78px + 24px - 108px - 86px)}}
@media(max-width:540px){#sales,#operations,#ai{scroll-margin-top:calc(78px + 24px - 94px - 68px)}}
body:has(dialog[open]){overflow:hidden}
button{cursor:pointer}
.nav-tool{border:1px solid #5e5e5e;border-radius:3px;color:var(--green);background:none;padding:9px 16px;min-height:44px;font-size:13px;white-space:nowrap}
.nav-tool:hover{border-color:var(--green);background:#55fa140e}
.desktop-nav{gap:25px}
.mobile-menu nav button{font:inherit;color:var(--green);background:none;border:0;border-bottom:1px solid #333;text-align:left;padding:15px 0;min-height:48px}
.about-detail{margin-top:22px;color:#414141}
.about-detail summary{cursor:pointer;min-height:44px;display:flex;align-items:center;gap:16px;font-size:14px;list-style:none}
.about-detail summary::after{content:'＋';font-size:20px}
.about-detail[open] summary::after{content:'−'}
.about-detail summary::-webkit-details-marker{display:none}
.about-detail p{font-size:15px;padding:14px 0;border-top:1px solid #ddd}
.product{padding:0;overflow:visible}
.product-trigger{display:block;width:100%;height:100%;padding:26px 22px 20px;text-align:left;color:#000;background:#fff;border:1px solid transparent;border-radius:4px;transition:border-color .18s,transform .18s}
.product-trigger:hover{border-color:#b2c4ab;transform:translateY(-4px)}
.product-trigger:focus-visible{outline-color:#246f0a}
.product-trigger .device{display:block}
.product-name{display:block;font-size:18px;font-weight:700;margin-top:24px;line-height:1.5}
.product-use{display:block;color:var(--gray);font-size:13px;line-height:1.75;margin-top:10px;min-height:46px}
.product-more{display:flex;justify-content:space-between;align-items:center;margin-top:18px;padding-top:15px;border-top:1px solid #ddd;font-size:13px}
.product-more>span{font-size:22px;line-height:1}
.product-trigger:hover .product-more{color:#246f0a}
.finance-entry{scroll-margin-top:115px;margin-top:36px;border:1px solid #ccc;background:#fff;padding:32px 36px;display:flex;justify-content:space-between;align-items:center;gap:28px;border-left:4px solid var(--green)}
.finance-entry .overline{font-size:12px;margin-bottom:10px}
.finance-entry .overline::before{display:none}
.finance-entry h3{font-size:25px}
.finance-entry p{font-size:14px;color:var(--gray);margin-top:10px}
.finance-entry .button{gap:24px;flex-shrink:0}
.finance-entry .button span{font-size:21px}
.interaction-hint{font-size:12px;color:#aaa;margin-top:42px}
.process{margin-top:18px;padding-top:0;border-top:0;gap:12px;align-items:start}
.process li::before{display:none}
.process details{border:1px solid #373737;border-radius:3px;padding:22px 18px;transition:border-color .18s}
.process details:hover,.process details[open]{border-color:#6b9958}
.process summary{cursor:pointer;list-style:none;position:relative;min-height:98px}
.process summary::-webkit-details-marker{display:none}
.step-number{display:block;font-size:12px;color:var(--green);margin-bottom:20px}
.step-title{display:block;font-size:18px;font-weight:700}
.step-short{display:block;font-size:12px;line-height:1.7;color:#aaa;margin-top:10px;padding-right:2px}
.step-mark{position:absolute;top:-5px;right:0;font-size:22px;font-weight:400;color:#aaa}
.process details[open] .step-mark{transform:rotate(45deg);color:var(--green)}
.process p{max-width:none;margin-top:18px;padding-top:16px;border-top:1px solid #3a3a3a;line-height:1.9}
.ai-grid{gap:80px}
.ai-content{min-width:0}
.ai-tabs{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid #d2d2d2;gap:8px}
.ai-tabs button{background:none;border:0;border-bottom:3px solid transparent;padding:12px 4px 17px;text-align:left;font-size:14px;color:#616161}
.ai-tabs button>span,.ai-tabs small{display:block}
.ai-tabs small{font-size:10px;font-weight:400;margin-top:6px;color:#777}
.ai-tabs button[aria-selected=true]{border-color:#55fa14;color:#000;font-weight:700}
.ai-tabs button:hover{color:#246f0a}
.ai-panel{padding:30px 0 0;min-height:260px}
.ai-panel .stage-label{display:block;margin-bottom:20px}
.ai-panel h3{font-size:26px;margin-bottom:20px}
.ai-panel p{font-size:15px;line-height:1.9;color:var(--gray)}
.ai-direction-list{font-size:12px;color:#616161;margin-top:24px}
/* 原生 dialog 负责模态语义。内容区独立滚动，关闭操作始终留在面板顶部。 */
.detail-dialog{padding:0;border:1px solid #d0d0d0;border-radius:8px;background:#fff;color:#000;width:calc(100% - 80px);max-width:1140px;max-height:calc(100dvh - 80px);overflow:hidden;box-shadow:0 24px 100px #0005}
.detail-dialog[open]{display:flex;flex-direction:column;animation:panel-arrival .2s ease-out}
.detail-dialog::backdrop{background:#0009;backdrop-filter:blur(5px)}
.dialog-head{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-shrink:0;padding:24px 32px;border-bottom:1px solid #dedede;background:#fff}
.dialog-eyebrow{font-size:12px;color:#616161;display:block}
.dialog-head h2{font-size:27px;margin-top:8px;letter-spacing:0}
.dialog-close{display:flex;align-items:center;justify-content:center;gap:12px;min-width:76px;min-height:44px;padding:8px 12px;border:1px solid #d0d0d0;border-radius:3px;background:#fff;color:#222;font-size:13px;flex-shrink:0}
.dialog-close span{font-size:24px;line-height:1}
.dialog-close:hover{background:#f4f4f4;border-color:#777}
.dialog-scroll{min-height:0;overflow:auto;overscroll-behavior:contain;padding:28px 32px 32px}
.detail-dialog [data-dialog-title]:focus{outline:none}
.detail-dialog :focus-visible{outline:2px solid #246f0a;outline-offset:4px}
.detail-dialog .calculator{grid-template-columns:1.1fr 1fr}
.detail-dialog .calc-inputs,.detail-dialog .calc-result{padding:28px}
.detail-dialog .calc-result{min-height:0}
.detail-dialog .monthly-value{font-size:44px}
.detail-dialog .formula{margin-top:24px}
.detail-dialog .formula h3{font-size:14px;font-weight:700;line-height:1.6}
.detail-dialog .formula p{font-size:12px;line-height:1.85;max-width:none}
.product-detail{display:grid;grid-template-columns:.9fr 1fr;gap:48px;align-items:center;padding-top:38px}
.product-detail-visual{background:#f5f5f5;padding:28px;min-width:0}
.product-detail-visual .product-art{height:360px}
.product-detail-visual>p{text-align:center;margin-top:24px;font-size:11px;color:#777}
.product-detail-copy{min-width:0}
.product-detail-copy h2{font-size:38px}
.product-detail-copy .overline{margin-bottom:16px}
.product-description{font-size:15px;color:#616161;margin-top:24px;line-height:1.9}
.product-specs{margin:28px 0 22px}
.product-specs>div{display:flex;gap:24px;justify-content:space-between;padding:13px 0;border-top:1px solid #ddd;font-size:14px}
.product-specs dt{color:#616161;flex-shrink:0}
.product-specs dd{margin:0;text-align:right;overflow-wrap:anywhere}
.product-contact{margin-top:28px;display:flex;flex-wrap:wrap;gap:4px 16px;background:#000;color:#fff}
.product-contact:hover{background:#292929}
@keyframes panel-arrival{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:1100px){.desktop-nav{gap:17px}.nav-tool{padding-inline:11px}.product-trigger{padding:22px 16px 18px}.product-name{font-size:16px}.ai-grid{gap:40px}.process details{padding-inline:14px}.step-title{font-size:16px}.detail-dialog{width:calc(100% - 48px);max-height:calc(100dvh - 48px)}.product-detail{gap:32px}.product-detail-copy h2{font-size:31px}.product-detail-visual .product-art{height:310px}}
@media(max-width:850px){.finance-entry{padding:28px}.ai-grid{grid-template-columns:1fr}.ai-orbit{width:290px;justify-self:center}.ai-panel{min-height:220px}.detail-dialog .calculator{grid-template-columns:1fr}.detail-dialog .calc-result{min-height:370px}.product-detail{grid-template-columns:.8fr 1fr;gap:24px}.product-detail-visual{padding:20px}.product-detail-visual .product-art{height:260px}.product-specs>div{gap:15px}.dialog-head,.dialog-scroll{padding-inline:24px}}
@media(max-width:600px){.detail-dialog{width:100%;max-width:none;height:100dvh;max-height:100dvh;margin:0;border:0;border-radius:0}.dialog-head{padding:16px max(20px,env(safe-area-inset-right)) 16px max(20px,env(safe-area-inset-left));gap:16px}.dialog-head h2{font-size:21px;margin-top:5px}.dialog-close{padding:7px 9px;gap:7px;min-width:68px}.dialog-scroll{padding:20px max(20px,env(safe-area-inset-right)) max(26px,env(safe-area-inset-bottom)) max(20px,env(safe-area-inset-left))}.detail-dialog .calc-inputs,.detail-dialog .calc-result{padding:23px 18px}.detail-dialog .monthly-value{font-size:37px}.product-detail{display:block;padding-top:20px}.product-detail-visual .product-art{height:265px}.product-detail-visual>p{margin-top:15px}.product-detail-copy{padding-top:28px}.product-detail-copy h2{font-size:30px}.product-detail-copy .overline{font-size:12px}.product-description{margin-top:18px}.product-specs{margin-top:22px}.product-contact{margin-top:23px}}
@media(max-width:540px){.product-trigger{padding:14px 12px 16px}.product-name{margin-top:17px;font-size:15px;line-height:1.6}.product-use{font-size:12px;min-height:43px}.product-more{font-size:12px;margin-top:14px;padding-top:12px}.product-more>span{font-size:20px}.finance-entry{padding:25px 22px;margin-top:30px;align-items:flex-start;flex-direction:column;gap:22px}.finance-entry h3{font-size:23px}.finance-entry p{font-size:13px}.process{grid-template-columns:1fr;gap:10px;margin-top:16px}.process li{display:block;padding:0;border:0}.process details{padding:19px 20px}.process summary{min-height:0;display:grid;grid-template-columns:28px 1fr 20px;gap:0 12px;align-items:center}.step-number{margin:0;grid-row:1/3;align-self:start;padding-top:3px}.step-title{font-size:17px}.step-short{grid-column:2;margin-top:5px}.step-mark{position:static;grid-column:3;grid-row:1/3}.process p{padding-top:16px;margin-top:16px}.ai-tabs{gap:4px}.ai-tabs button{font-size:13px}.ai-panel h3{font-size:23px}.ai-panel p{font-size:14px}.ai-panel{min-height:265px}.interaction-hint{margin-top:32px}.about-detail p{font-size:14px}}
@media(max-width:359px){.product-name{font-size:18px}.product-use{min-height:0}.detail-dialog .monthly-value{font-size:32px}.dialog-head h2{font-size:18px}.dialog-scroll{padding-inline:14px}.detail-dialog .calc-inputs,.detail-dialog .calc-result{padding-inline:16px}.ai-tabs{grid-template-columns:1fr 1fr}.ai-panel{min-height:285px}}
@media(prefers-reduced-motion:reduce){.detail-dialog[open]{animation:none}.product-trigger{transition:none}}

/* 开场沿用 VIS 的黑底与绿色柔光波浪，Logo 使用原始透明素材。 */
.brand-intro{display:none}
html.intro-active{overflow:hidden}
html.intro-active .brand-intro{position:fixed;inset:0;z-index:200;display:grid;place-items:center;overflow:hidden;background:#000;color:#fff;animation:intro-exit .8s ease 9.2s forwards}
.intro-wave{position:absolute;inset:auto;left:0;bottom:0;width:100%;height:clamp(160px,min(52svh,60vw),680px);animation:full-wave-arrival .65s ease-out both}
.crest-breathe,.wave-back,.wave-front{transform:none;animation:none}
.intro-brand{position:absolute;z-index:1;top:22%;width:clamp(260px,30vw,430px);max-width:74vw;margin:0;text-align:center;animation:intro-logo 1s ease-out .15s both}
.intro-brand img{width:100%;height:auto}
.intro-brand p{margin:28px auto 0;font-size:18px;letter-spacing:.24em;color:#ddd}
.intro-skip{position:absolute;z-index:2;right:var(--gutter);top:max(24px,env(safe-area-inset-top));border:1px solid #ffffff50;background:none;color:#eee;font-size:12px;min-height:44px;padding:10px 17px;display:flex;gap:22px;align-items:center;transition:background .2s,border-color .2s}
.intro-skip:hover{border-color:var(--green);color:var(--green)}
.product-more .product-plus{width:36px;height:36px;display:grid;place-items:center;border-radius:50%;border:1px solid #ccc;font-size:24px;transition:background .18s,border-color .18s}
.product-trigger:hover .product-plus{background:var(--green);border-color:var(--green);color:#000}
@keyframes full-wave-arrival{from{opacity:0}to{opacity:1}}
@keyframes intro-logo{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
@keyframes intro-exit{to{opacity:0;visibility:hidden}}
@media(max-width:600px){.intro-brand{top:22%;width:min(74vw,320px)}.intro-brand p{font-size:16px;margin-top:24px}.intro-skip{right:24px}.product-more .product-plus{width:30px;height:30px;font-size:21px}}
@media(max-height:500px){.intro-brand{top:18%;width:clamp(180px,32vw,250px)}.intro-brand p{margin-top:16px;font-size:14px}}
@media(prefers-reduced-motion:reduce){.intro-wave,.crest-breathe,.wave-back,.wave-front,.intro-brand{animation:none!important}html.intro-active .brand-intro{animation:intro-exit .01s linear 9.99s forwards}}

/* 同一系列按型号比较；手机将表格逐行排成规格卡片。 */
.product-dialog{max-width:1280px}
.product-detail{grid-template-columns:260px minmax(0,1fr);gap:42px;align-items:start}
.product-detail-visual{position:sticky;top:0;padding:24px}
.product-detail-visual .product-art{height:310px}
.product-detail-copy h2{font-size:34px}
.product-description{margin-top:16px}
.model-table-wrap{margin-top:28px;min-width:0}
.model-table{border-collapse:collapse;width:100%;font-size:13px;line-height:1.6;text-align:left}
.model-table caption{text-align:left;font-size:16px;font-weight:700;margin-bottom:16px}
.model-table th{font-size:12px;color:#616161;font-weight:400;padding:12px 10px;background:#f4f4f4;border-bottom:1px solid #ccc;white-space:nowrap}
.model-table td{padding:13px 10px;border-bottom:1px solid #e5e5e5;vertical-align:top}
.model-table td:first-child{font-weight:700;white-space:nowrap}
.model-table tbody tr:hover{background:#f6fbf4}
.model-family{display:block;font-size:11px;color:#616161;font-weight:400}
.product-technical{font-size:12px;color:#616161;margin-top:18px;line-height:1.9}
.product-technical p+p{margin-top:6px}
@media(max-width:1100px){.product-detail{grid-template-columns:210px minmax(0,1fr);gap:28px}.product-detail-visual .product-art{height:270px}.model-table{font-size:12px}.model-table td,.model-table th{padding-inline:7px}}
@media(max-width:850px){.product-detail{display:block}.product-detail-visual{position:static;max-width:320px;margin-inline:auto}.product-detail-visual .product-art{height:230px}.product-detail-copy{padding-top:28px}}
@media(max-width:600px){.product-detail-visual{width:100%;max-width:none;padding:18px}.product-detail-visual .product-art{height:230px}.model-table caption{display:block;width:100%}.model-table thead{display:none}.model-table,.model-table tbody{display:block}.model-table tr{display:grid;grid-template-columns:1fr 1fr;border:1px solid #ddd;margin-bottom:12px;padding:12px 15px;gap:10px 18px}.model-table td{display:block;border:0;padding:0;font-size:13px;overflow-wrap:anywhere}.model-table td:first-child{grid-column:1/-1;font-size:15px;padding-bottom:8px;border-bottom:1px solid #e5e5e5}.model-table td:not(:first-child)::before{content:attr(data-label);display:block;color:#777;font-size:11px;margin-bottom:4px}.product-technical{font-size:12px}.product-detail-copy h2{font-size:29px}}