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220px;gap:15px}.solution-layout{grid-template-columns:300px minmax(0,1fr)}}@media(max-width:980px){:root{--sidebar:180px}.brand{font-size:19px;gap:8px}.brand img{width:28px}.brand small{letter-spacing:1.4px}nav a{padding:11px 10px;font-size:12px}.side-intro{font-size:9px;letter-spacing:0}.source-note{padding:12px 10px}.source-note strong{font-size:11px}.small-label{font-size:8px}.hero-art{opacity:.5;width:47%;right:-5px;top:5px}.hero h1{font-size:29px}.hero form{max-width:100%}.hero-copy{max-width:100%}.hero-description{max-width:65%}.shortcuts{grid-template-columns:repeat(2,1fr)}.overview-grid{grid-template-columns:1fr}.scene-grid{grid-template-columns:repeat(3,1fr)}.hero{min-height:330px}.chat-side{display:none}.chat-layout{grid-template-columns:1fr}.solution-layout{grid-template-columns:1fr}.solution-form{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}.solution-form label:last-of-type{grid-column:1/-1}.solution-form .form-hint{grid-column:1/-1}.solution-placeholder{min-height:300px}.saved-solutions{grid-template-columns:repeat(2,1fr)}.comparison-notes{grid-template-columns:1fr}.header-actions{gap:15px}.mode-badge{font-size:10px}.account-button{padding-left:15px}footer{padding:20px 28px}.knowledge-grid{grid-template-columns:1fr}}@media(max-width:700px){:root{--sidebar:0px}#sidebar{width:228px;transform:translateX(-100%);transition:transform .2s;padding:27px 22px}body.menu-open #sidebar{transform:translateX(0);box-shadow:15px 0 70px #153c3460}.brand{font-size:23px}.brand img{width:33px}.brand small{letter-spacing:2px}.side-intro{font-size:11px}nav a{font-size:14px;padding:12px 15px}.menu-toggle{display:inline-grid!important;margin-left:-7px;margin-right:8px;flex-shrink:0}.breadcrumb{margin-right:auto;font-size:11px}.breadcrumb span{margin:0 8px}header{height:65px;padding:0 20px}.header-actions{gap:7px}.mode-badge{font-size:0;gap:0}.mode-badge i{width:7px;height:7px}.account-button{font-size:10px;border:0;padding-left:6px;gap:6px}.account-arrow{display:none}.avatar{width:27px;height:27px}main{padding:22px 20px 30px}.hero{padding-top:10px;min-height:420px}.eyebrow{font-size:9px;letter-spacing:1.4px}.hero h1{font-size:29px;line-height:1.5;margin:17px 0 12px;letter-spacing:0}.hero-description{max-width:80%;font-size:11px;margin-bottom:115px}.hero-art{height:190px;top:133px;right:-20px;width:70%;opacity:.85}.hero form{position:relative}.askbox{gap:8px;padding:8px 8px 8px 11px}.askbox input{font-size:11px}.send{width:34px;height:34px}.suggestions{gap:6px;margin-top:10px}.suggestions>span{display:none}.suggestions button{font-size:9px;padding:3px 8px}.shortcuts{margin:18px 0 26px;gap:10px}.shortcut{padding:15px 11px}.shortcut strong{font-size:12px}.shortcut .iconbox{width:31px;height:31px}.shortcut .icon{width:18px;height:18px}.shortcut small{font-size:8px}.shortcut .chevron{display:none}.panel{padding:18px}.scene-grid{grid-template-columns:repeat(2,1fr)}.section-head h2{font-size:16px}.section-head p{font-size:10px}.section-head a{font-size:10px}.scene-tile{min-height:109px}.page-heading{align-items:flex-start;margin-bottom:20px;gap:10px}.page-heading h1{font-size:25px}.page-heading p{font-size:11px}.page-heading>.tag{margin-top:15px;font-size:9px;white-space:nowrap}.page-heading>.secondary{font-size:10px;padding:8px 10px;white-space:nowrap}.search-field{min-width:100%;padding:10px 12px}.tabs{gap:1px}.tabs button{padding:7px 9px;font-size:11px}.knowledge-card{padding:19px}.knowledge-card h2{font-size:14px}.chat-messages{padding:24px 17px}.chat-top{padding:13px 15px}.chat-top select{font-size:10px;max-width:145px}.chat-welcome{padding:24px 0 18px}.chat-welcome h2{font-size:21px}.chat-welcome p{font-size:11px}.chat-compose{padding:14px 16px}.chat-window{min-height:620px}.message-question{margin-left:15px}.message-question p{max-width:100%;font-size:12px}.message-answer{gap:9px}.answer-mark{width:25px;height:25px}.answer-text{font-size:12px}.answer-meta{flex-wrap:wrap;font-size:9px}.source-box{padding:9px 10px}.source-box li{font-size:10px}.compose-footer>span{font-size:9px}.solution-form{display:block}.solution-result .summary-grid{gap:8px}.solution-result{padding:18px}.saved-solutions{grid-template-columns:1fr}.history-card{padding:16px 13px;gap:7px}.history-open strong{font-size:12px}.history-open small{font-size:9px}.history-card>.icon{width:18px}.notice{font-size:10px}.tech-picks{gap:7px}.tech-picks label{font-size:11px;padding:7px 10px}th,td{padding:14px 16px}footer{padding:17px 20px;flex-direction:column;gap:11px;font-size:9px}footer button{font-size:9px}.knowledge-row strong{font-size:11px}.knowledge-row small{font-size:9px}.page-chip{font-size:8px}.account-button #account-name{max-width:65px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}dialog{padding:22px}.empty{padding:45px 16px}.empty h2{font-size:18px}#toast{left:50%;font-size:11px;min-width:190px;text-align:center}}
/* 小屏让插画避开正文，短窗口允许完整滚动侧栏。 */
#sidebar{overflow-y:auto}
@media(max-width:700px){.hero-art{top:172px;height:155px}}

/* Visual refresh v2: match the approved image concept through real assets. */
:root{--forest:#073c31;--paper:#faf8f4;--line:#e8e3da;--mint:#e8f3ec;--orange:#f18a3f}
#sidebar{background-color:var(--forest);background-image:radial-gradient(ellipse at 10% 100%,#22604f 0,transparent 48%)}
.hero{min-height:375px;padding-top:20px;isolation:isolate}
.hero-art{width:64%;height:395px;right:-40px;top:-23px;object-fit:cover;object-position:center center;opacity:1;z-index:-2}
.hero:after{content:"";position:absolute;left:-3px;top:0;width:72%;height:100%;background:linear-gradient(90deg,var(--paper) 0%,var(--paper) 45%,#faf8f4d9 65%,#faf8f400 100%);pointer-events:none;z-index:-1}
.hero-copy{max-width:650px;z-index:1}
.hero h1{font-family:"Songti SC","STSong","Noto Serif CJK SC",serif;font-size:clamp(35px,3.25vw,49px);font-weight:750;line-height:1.38;letter-spacing:.5px;color:#0b352b;margin:16px 0 14px}
.hero h1 em{color:inherit}
.hero h1:after{content:"";display:block;width:47px;height:4px;border-radius:3px;background:var(--orange);margin-top:12px}
.hero-description{font-size:13px;line-height:1.9;color:#68756a;max-width:510px;margin-bottom:21px}
.hero form{max-width:750px;width:72%}
.askbox{border-color:#c8cbc1;box-shadow:0 6px 16px #5b533503}
.send{background:var(--orange)}
.suggestions button{background:#faf8f4;border-color:#e6e0d7}
.shortcuts{margin-top:14px;gap:16px}
.shortcut{background:#ffffffb3;padding:20px 16px}
.shortcut small{font-size:11px}
.overview-grid{grid-template-columns:1.25fr 1fr;gap:21px}
.overview-grid>.panel{background:#ffffffb3}
.scene-grid{gap:12px}
.scene-tile{padding:0;min-height:0;background:#fcfaf6;border-color:#e7e2d8;display:flex;flex-direction:column;border-radius:8px}
.scene-photo{display:block;width:100%;height:91px;object-fit:cover;object-position:center center;transition:transform .25s}
.scene-tile:hover .scene-photo{transform:scale(1.035)}
.scene-tile-content{display:block;padding:10px 10px 12px;position:relative;width:100%}
.scene-title{display:flex;align-items:center;gap:6px}
.scene-tile .icon{width:17px;height:17px;margin:0;color:#246c50}
.scene-tile strong{font-size:12px;line-height:1.5;color:#233c2e}
.scene-tile small{margin-top:5px;font-size:10px;line-height:1.6;color:#7c8677}
.knowledge-row{padding:18px 0}
.foundation{background:#f6f3e8;margin-top:18px}
@media(min-width:1500px){.hero{min-height:400px}.hero-art{height:435px;top:-26px}.hero-description{font-size:14px}.scene-photo{height:107px}.scene-tile strong{font-size:14px}.scene-tile small{font-size:11px}}
@media(max-width:1200px){.hero-art{right:-28px;top:-4px;width:65%;height:370px}.hero{min-height:369px}.hero h1{font-size:37px}.hero form{width:76%}.hero-description{font-size:12px;max-width:465px}.shortcut{padding:17px 12px}.shortcut small{font-size:9px}.shortcut .chevron{display:none}.scene-photo{height:82px}.scene-tile-content{padding:9px 8px 11px}.scene-tile strong{font-size:11px}.scene-tile small{font-size:9px}.overview-grid{grid-template-columns:1.18fr 1fr;gap:17px}}
@media(max-width:980px){.hero-art{width:65%;height:355px;right:-25px;top:4px;opacity:1}.hero h1{font-size:34px}.hero:after{width:88%;background:linear-gradient(90deg,var(--paper) 0%,var(--paper) 28%,#faf8f4d4 60%,transparent 100%)}.hero-description{max-width:75%}.hero form{width:100%}.overview-grid{grid-template-columns:1fr}.scene-photo{height:118px}.scene-tile strong{font-size:13px}.scene-tile small{font-size:10px}}
@media(max-width:700px){.hero{padding-top:8px;min-height:483px}.hero-copy{max-width:100%}.hero h1{font-size:32px;line-height:1.4;margin:15px 0 12px;letter-spacing:0}.hero h1:after{margin-top:10px;height:3px;width:35px}.hero-description{font-size:11px;max-width:100%;margin-bottom:169px}.hero-art{top:197px;right:-20px;width:83%;height:190px;object-fit:contain;object-position:right center;z-index:-2}.hero:after{width:100%;height:250px;background:linear-gradient(180deg,var(--paper) 0%,var(--paper) 66%,transparent 100%)}.hero form{width:100%}.shortcuts{gap:10px;margin-top:12px}.shortcut{padding:15px 11px}.shortcut small{font-size:8px}.scene-photo{height:95px}.scene-tile-content{padding:10px 9px 12px}.scene-tile strong{font-size:12px}.scene-tile small{font-size:9px}.knowledge-row{padding:15px 0}.overview-grid{gap:18px}}

/* 精简展示：只保留标题、操作和必要状态。 */
.hero-copy{min-height:245px}
.compose-footer{justify-content:flex-end}
.knowledge-card .card-bottom{justify-content:flex-end}
.chat-welcome h2{margin-bottom:25px}
.comparison-footnote{font-size:11px;color:var(--muted);margin:15px 0;line-height:1.7}
.text-button{padding:0;background:none;border:0;color:var(--teal);font-size:11px}
.page-heading{margin-bottom:22px}
.page-heading h1{font-size:28px}
@media(max-width:700px){.hero-copy{min-height:355px}.page-heading h1{font-size:25px}}

/* 备案产品全称：侧栏分两行完整展示。 */
.brand{font-size:19px;letter-spacing:0;gap:10px;line-height:1.45}.brand>span{min-width:0;white-space:nowrap}.brand img{flex-shrink:0;width:30px}.brand .brand-light{display:block;margin-left:0;font-size:15px;letter-spacing:3px}
@media(min-width:701px) and (max-width:980px){.brand{font-size:15px;gap:7px}.brand img{width:25px}.brand .brand-light{font-size:13px}}

.sms-code-row{display:flex;gap:10px;align-items:center}.sms-code-row input{min-width:0;flex:1}.sms-code-row button{flex-shrink:0}footer #icp-link{margin-left:12px}#modal-title{font-size:18px}#modal-content a{color:var(--teal)}

.shortcuts{grid-template-columns:repeat(2,minmax(0,1fr))}.answer-reference{font-size:11px;color:var(--muted);margin:12px 0;overflow-wrap:anywhere}.answer-text.markdown{white-space:normal}.markdown p{margin:0 0 12px}.markdown h1,.markdown h2,.markdown h3{font-size:17px;margin:18px 0 10px}.markdown pre{overflow:auto;padding:12px;background:var(--paper);border-radius:6px}.markdown code{font-size:12px}.markdown table{border-collapse:collapse;display:block;max-width:100%;overflow:auto}.markdown ul,.markdown ol{padding-left:22px}.markdown blockquote{margin:10px 0;padding-left:12px;border-left:3px solid #b9cfc1}.compose-footer .check-row{margin:0;display:flex;align-items:center;flex-wrap:wrap}.compose-footer .check-row button{border:0;background:transparent;padding:0;color:var(--teal)}.check-row button[data-inline-terms]{border:0;background:transparent;padding:0;color:var(--teal)}.answer-body{min-width:0;flex:1}