/* 小楠 PROMO 官网：墨色 + 溪金，宋体标题 + 系统黑体正文。
   不加载任何外部字体和脚本：国内访问海外服务器时，外部资源是最慢、最容易失败的部分。 */
:root{
  --page:#F4F1EA; --surface:#FFFDF9; --surface-2:#EEE8DC; --line:#E3DCCF;
  --ink:#221D17; --ink-7:#4A4238; --ink-5:#6E6455;
  --gold:#E8C07A; --gold-6:#C98B34; --gold-7:#8A5A17; --gold-1:#F7EBD3;
  --warn:#B8492A; --on-ink:#F4EEE3; --on-ink-2:#B5A993;
  --serif:"Songti SC","STSong","Noto Serif SC","Source Han Serif SC","SimSun",serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC","Hiragino Sans GB",system-ui,sans-serif;
  --sh:0 1px 2px rgba(34,29,23,.05),0 10px 30px -16px rgba(34,29,23,.22);
  --wrap:1080px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--page);color:var(--ink);font:16px/1.8 var(--sans)}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3{font-family:var(--serif);font-weight:900;line-height:1.3;margin:0;text-wrap:balance}
p{margin:0}
.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:20px}

/* 顶栏 */
.top{position:sticky;top:0;z-index:5;background:rgba(244,241,234,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:24px;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand img{width:34px;height:34px;border-radius:9px}
.brand b{font-family:var(--serif);font-size:19px;font-weight:900}
.brand small{display:block;font-size:10px;letter-spacing:.24em;color:var(--ink-5);line-height:1}
.nav{display:flex;gap:4px;margin-left:auto;flex-wrap:wrap}
.nav a{text-decoration:none;font-size:15px;padding:6px 12px;border-radius:8px;color:var(--ink-7)}
.nav a:hover{background:var(--surface-2)}
.nav a[aria-current="page"]{color:var(--ink);font-weight:700;background:var(--gold-1)}
.cta{display:inline-flex;align-items:center;gap:8px;background:var(--ink);color:var(--gold);text-decoration:none;font-weight:700;font-size:15px;padding:10px 18px;border-radius:10px}
.cta:hover{background:#000}
.cta.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.cta.ghost:hover{background:var(--surface)}
a:focus-visible{outline:2px solid var(--gold-6);outline-offset:3px;border-radius:6px}

/* 区块 */
main{display:flex;flex-direction:column;gap:88px;padding-block:56px 88px}
.eb{font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--gold-7)}
.sec{display:flex;flex-direction:column;gap:28px}
.sec-h{display:flex;flex-direction:column;gap:8px;max-width:none}
.sec-h h2{font-size:clamp(26px,3.6vw,36px)}
.sec-h p{color:var(--ink-5);font-size:17px}
.lead{font-size:18px;color:var(--ink-7);max-width:none}
.prose{max-width:none;display:flex;flex-direction:column;gap:16px;color:var(--ink-7);font-size:17px}
.prose b{color:var(--ink)}

/* 首屏 */
.hero{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:48px;align-items:center}
.hero h1{font-size:clamp(34px,5.4vw,58px);line-height:1.18}
.hero h1 em{font-style:normal;color:var(--gold-6)}
.hero .acts{display:flex;gap:12px;flex-wrap:wrap;margin-top:8px}
.hero-l{display:flex;flex-direction:column;gap:20px}
.panel{background:var(--ink);color:var(--on-ink);border-radius:22px;padding:30px;display:flex;flex-direction:column;gap:18px;
  background-image:radial-gradient(90% 120% at 0% 100%,rgba(232,192,122,.22),transparent 60%)}
.panel .lab{font-size:13px;color:var(--gold);letter-spacing:.06em}
.panel .num{display:flex;align-items:baseline;gap:10px}
.panel .num b{font:900 88px/.85 var(--serif);color:var(--gold)}
.panel .num span{font:700 20px var(--serif)}
.panel .rows{display:flex;flex-direction:column;gap:10px;border-top:1px solid rgba(244,238,227,.14);padding-top:16px}
.panel .row{display:flex;align-items:center;gap:14px;font-size:15px}
.panel .row b{width:84px;font-weight:500}
.panel small{color:var(--on-ink-2);font-size:12px}
.dots{display:flex;gap:6px}
.d{width:14px;height:14px;border-radius:50%;flex:none}
.d.hit{background:var(--gold-6)}
.d.miss{border:2px solid var(--on-ink-2)}

/* 卡片 */
.grid{display:grid;gap:16px}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.card{background:var(--surface);border-radius:18px;box-shadow:var(--sh);padding:24px;display:flex;flex-direction:column;gap:8px;min-width:0}
.card .n{font:900 34px/1 var(--serif);color:var(--gold-6)}
.card h3{font-size:20px}
.card p{color:var(--ink-7);font-size:15px}
.flat{background:var(--surface-2);box-shadow:none}

/* 示例截图 */
.shot{border-radius:16px;overflow:hidden;border:1px solid var(--line);background:var(--surface);box-shadow:var(--sh)}
.cap{font-size:13px;color:var(--ink-5)}
.show{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,.7fr);gap:24px;align-items:start}
.phone{width:230px;max-width:100%;padding:6px;border-radius:36px;background:#201e1c;box-shadow:inset 0 0 0 1px #66615b,0 12px 28px -18px rgba(34,29,23,.5);justify-self:center}
.phone-screen{position:relative;overflow:hidden;border-radius:30px;background:var(--page);display:flex;flex-direction:column;padding-bottom:18px}
.phone-status{height:35px;flex:none;position:relative;display:flex;align-items:center;justify-content:space-between;padding:0 20px;font:600 9px/1 var(--sans);color:var(--ink)}
.phone-island{position:absolute;left:50%;top:7px;transform:translateX(-50%);width:64px;height:19px;border-radius:20px;background:#080808}
.phone-island::after{content:"";position:absolute;right:7px;top:6px;width:6px;height:6px;border-radius:50%;background:#151c28;box-shadow:inset 0 0 0 1px #242a36}
.phone-battery{width:13px;height:7px;border:1px solid currentColor;border-radius:2px;position:relative}
.phone-battery::before{content:"";position:absolute;inset:1px;background:currentColor;border-radius:1px}
.phone-battery::after{content:"";position:absolute;right:-3px;top:1px;width:1px;height:3px;background:currentColor}
.phone-screen>img{width:100%;height:auto;flex:none}
.phone-screen::after{content:"";position:absolute;bottom:5px;left:50%;transform:translateX(-50%);width:70px;height:3px;background:#221d17;border-radius:3px}

/* 底线 */
.nots{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;width:100%}
.nots span{display:flex;align-items:center;justify-content:center;gap:4px;background:var(--surface);border:1px solid var(--line);border-radius:99px;padding:13px 10px;min-height:52px;font-size:14px;line-height:1.5;color:var(--ink-7)}
.nots span::before{content:"不 ";color:var(--warn);font-weight:700}
@media (min-width:641px) and (max-width:900px){.nots{grid-template-columns:repeat(6,minmax(0,1fr))}.nots span{grid-column:span 2}.nots span:nth-last-child(-n+2){grid-column:span 3}}
@media (max-width:640px){.nots{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.nots span{padding:12px 8px;font-size:13px;min-height:46px}.nots span:last-child{grid-column:1/-1}}

/* 表格式说明 */
.rows2{display:flex;flex-direction:column;background:var(--surface);border-radius:18px;box-shadow:var(--sh);overflow:hidden}
.rows2 > div{display:grid;grid-template-columns:200px minmax(0,1fr);gap:20px;padding:18px 24px;border-bottom:1px solid var(--line)}
.rows2 > div:last-child{border-bottom:0}
.rows2 b{font-family:var(--serif);font-size:17px}
.rows2 span{color:var(--ink-7)}
.ladder{display:flex;flex-direction:column;gap:10px}
.rung{display:flex;gap:16px;align-items:center;padding:14px 18px;border-radius:12px;background:var(--surface-2)}
.rung b{font-family:var(--serif);width:7.5em;flex:none}
.rung.hi{background:var(--gold-1)}
.rung.hi b{color:var(--gold-7)}

/* 问答 */
.qa{display:flex;flex-direction:column;gap:12px;max-width:none}
.qa details{background:var(--surface);border-radius:16px;box-shadow:var(--sh);padding:18px 24px}
.qa summary{cursor:pointer;font-family:var(--serif);font-weight:900;font-size:19px;list-style:none;display:flex;justify-content:space-between;gap:16px}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"+";color:var(--gold-6);font-family:var(--sans)}
.qa details[open] summary::after{content:"–"}
.qa details p{margin-top:10px;color:var(--ink-7)}
.qa summary:focus-visible{outline:2px solid var(--gold-6);outline-offset:4px;border-radius:6px}

/* 联系 */
.contact{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:32px;align-items:center;background:var(--surface);border-radius:22px;box-shadow:var(--sh);padding:32px}
.contact h2{font-size:clamp(24px,3vw,32px)}
.contact p{color:var(--ink-7)}
.qr{display:flex;flex-direction:column;align-items:center;gap:8px}
.qr img{width:200px;height:200px;border-radius:12px;border:1px solid var(--line)}
.qr span{font-size:13px;color:var(--ink-5)}

/* 页脚 */
footer{border-top:1px solid var(--line);padding-block:32px 40px;font-size:14px;color:var(--ink-5)}
footer .wrap{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
footer b{color:var(--ink-7);font-weight:500}
footer nav{display:flex;gap:16px;flex-wrap:wrap}
footer nav a{text-decoration:none}
footer nav a:hover{text-decoration:underline}
footer .icp{color:var(--ink-5);text-decoration:none;font-size:13px}
footer .icp:hover{text-decoration:underline}

.page-h{display:flex;flex-direction:column;gap:14px;max-width:none}
.page-h h1{font-size:clamp(32px,4.6vw,48px)}

@media (max-width:900px){
  .hero,.show{grid-template-columns:1fr}
  .g4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .g3{grid-template-columns:1fr}
  .contact{grid-template-columns:1fr;justify-items:start}
}
@media (max-width:640px){
  .top .wrap{flex-wrap:wrap;padding-block:10px;gap:8px}
  .nav{margin-left:0;width:100%;overflow-x:auto;flex-wrap:nowrap}
  .nav a{white-space:nowrap}
  .top .cta{display:none}
  .g4,.g2{grid-template-columns:1fr}
  .rows2 > div{grid-template-columns:1fr;gap:4px}
  main{gap:64px;padding-block:36px 64px}
  .wrap{padding-inline:16px}
  .panel .num b{font-size:68px}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto}}

/* 2026-10 展会版：报告要点、来源示例、方法表 */
.panel .row em{font-style:normal;font-size:12px;color:var(--on-ink-2);margin-left:auto}
.feats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--sh)}
.feats>div{background:var(--surface);padding:22px 24px;display:flex;flex-direction:column;gap:6px}
.feats b{font-family:var(--serif);font-size:18px;font-weight:900}
.feats b::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--gold-6);margin-right:10px;vertical-align:middle;position:relative;top:-2px}
.feats span{color:var(--ink-7);font-size:15px}
.show figure{margin:0;display:flex;flex-direction:column;gap:8px}
.show .ph-fig{align-items:center}
.bars{margin-top:16px;background:var(--surface);border-radius:16px;box-shadow:var(--sh);padding:20px 24px;display:flex;flex-direction:column;gap:10px}
.bars-h{display:flex;align-items:baseline;gap:12px;margin-bottom:4px}
.bars-h b{font-family:var(--serif);font-size:18px}
.bars-h span{margin-left:auto;font-size:13px;color:var(--ink-5)}
.bar{display:grid;grid-template-columns:minmax(0,170px) minmax(0,1fr) 32px;gap:12px;align-items:center;font-size:14px;color:var(--ink-7)}
.bar em{font-style:normal;font-size:11px;color:var(--ink-5);border:1px solid var(--line);border-radius:4px;padding:0 5px;margin-left:4px}
.bar i{height:8px;border-radius:4px;background:linear-gradient(90deg,#9c9283 var(--w),var(--surface-2) var(--w))}
.bar b{font:900 17px/1 var(--serif);text-align:right;color:var(--ink)}
.bar.own span{font-weight:700;color:var(--ink)}
.bar.own em{color:var(--gold-7);background:var(--gold-1);border-color:transparent}
.bar.own i{background:linear-gradient(90deg,var(--gold-6) var(--w),var(--surface-2) var(--w))}
.card .eb{font-size:12px}
.tbl{display:flex;flex-direction:column;background:var(--surface);border-radius:18px;box-shadow:var(--sh);overflow:hidden}
.tr{display:grid;grid-template-columns:140px 220px minmax(0,1fr);gap:20px;padding:16px 24px;border-bottom:1px solid var(--line);align-items:baseline}
.tr:last-child{border-bottom:0}
.tr.th{background:var(--surface-2);font-size:13px;color:var(--ink-5);padding-block:10px}
.tr b{font-family:var(--serif);font-size:17px}
.tr span{color:var(--ink-7)}
@media (max-width:900px){.feats{grid-template-columns:1fr 1fr}}
@media (max-width:640px){
  .feats{grid-template-columns:1fr}
  .tr{grid-template-columns:1fr;gap:2px}
  .tr.th{display:none}
  .bar{grid-template-columns:minmax(0,120px) minmax(0,1fr) 28px}
  .panel .row em{display:none}
}
.line-h{font-size:18px;margin:22px 0 12px}

/* 页脚与小屏排版：保持原有视觉层级。 */
.brand,.top .cta{flex-shrink:0}
#contact{scroll-margin-top:140px}
.qr span{text-align:center;font-size:12px;white-space:nowrap}
.footer-info{line-height:1.9}
.footer-brand{color:var(--ink-7)}
.footer-brand b{font-weight:700}
.footer-brand small{font-size:11px;color:var(--ink-5);display:inline-block}
.panel .num{flex-wrap:wrap}
@media (min-width:641px) and (max-width:900px){
  .top .wrap{gap:12px;flex-wrap:wrap;padding-block:10px}
  .top .nav{order:3;width:100%;margin-left:0;justify-content:center}
  .top .cta{margin-left:auto}
}
@media (max-width:640px){
  .nav{min-width:0}
  .panel{padding:24px}
  .panel .row{gap:8px;font-size:14px}
  .panel .row b{width:70px;flex:none}
  .panel .row em{display:block;font-size:10px;white-space:nowrap}
  .panel .dots{gap:4px}
  .panel .d{width:11px;height:11px}
  .contact{padding:24px}
  .bars-h{flex-wrap:wrap}
  .bars-h span{margin-left:0}
  .rung{flex-direction:column;align-items:flex-start;gap:4px}
  .footer-brand small{display:block}
}
/* 图示与正文共存，使用本地 SVG，不依赖外部脚本。 */
.line-icon{width:32px;height:32px;color:var(--gold-7);flex:none;display:block}
.step-mark{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.step-mark span{font:700 13px var(--sans);letter-spacing:.12em;color:var(--ink-5)}
.process-grid .card{position:relative}
.process-grid .card:not(:last-child)::after{content:'→';position:absolute;right:-15px;top:44px;z-index:1;color:var(--gold-7);font-size:20px}
.source-map{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;border:1px solid var(--line);background:var(--line);border-radius:18px;overflow:hidden}
.source-map>div{background:var(--surface);padding:26px;display:grid;grid-template-columns:36px 1fr;gap:8px 14px}
.source-map b{font:900 19px var(--serif);align-self:center}
.source-map span{grid-column:2;font-size:14px;color:var(--ink-7)}
.diagram{display:flex;border:1px solid var(--line);border-radius:18px;background:var(--surface);padding:28px;gap:40px}
.diagram-node{flex:1;min-width:0;position:relative;display:flex;flex-direction:column;gap:10px}
.diagram-node b{font:900 22px var(--serif)}
.diagram-node span{font-size:14px;color:var(--ink-5)}
.diagram-node:not(:last-child)::after{content:'→';position:absolute;right:-28px;top:25px;color:var(--gold-7);font-size:24px}
.method-detail{border-top:1px solid var(--line);padding-top:16px}
.method-detail summary{cursor:pointer;color:var(--ink-7);font-size:14px;text-underline-offset:5px}
.method-detail[open] .prose{margin-top:20px}
.language-link{font-size:13px;text-decoration:none;color:var(--ink-5);padding:6px;flex:none}
@media(max-width:900px){.source-map{grid-template-columns:repeat(2,minmax(0,1fr))}.process-grid .card::after{display:none}}
@media(max-width:640px){.source-map{grid-template-columns:1fr}.diagram{flex-direction:column;gap:32px;padding:24px}.diagram-node:not(:last-child)::after{content:'↓';top:auto;right:0;bottom:-26px}.source-map>div{padding:22px}.step-mark{margin-bottom:8px}.language-link{margin-left:auto}}
.english-page h1,.english-page h2,.english-page h3{text-wrap:initial}
.english-page h1{font-size:clamp(32px,4vw,50px)}
.english-page h2{font-size:clamp(26px,3vw,36px)}
.export-visual{background:var(--surface-2);padding:32px;border-radius:24px}
.export-doc{background:var(--surface);padding:24px;border:1px solid var(--line);border-radius:12px;box-shadow:var(--sh)}
.export-doc>span{font-size:11px;letter-spacing:.1em;color:var(--gold-7)}
.export-doc>b{display:block;font:900 34px/1.4 var(--serif);margin:8px 0}
.export-doc p{font-size:14px;color:var(--ink-5)}
.export-arrow{text-align:center;font-size:28px;color:var(--gold-7);line-height:1.5}
@media(max-width:640px){.export-visual{padding:20px}.english-page .brand b{font-size:16px}.english-page .brand small{font-size:8px}.english-page .top .language-link{margin-left:auto}}
/* 两列展示以完整截图为准，左侧卡片组跟随手机实际高度。 */
@media(min-width:901px){
  .show{grid-template-columns:minmax(0,1fr) 230px;align-items:stretch;margin-bottom:26px}
  .show>figure:first-child{min-height:0}
  .show>figure:first-child .bars{flex:1;margin-top:0;justify-content:space-between}
  .show .ph-fig{position:relative;align-self:start}
  .show .ph-fig figcaption{position:absolute;top:100%;margin-top:8px;white-space:nowrap}
}
button.cta{border:0;font-family:inherit;line-height:inherit;cursor:pointer}
.email-dialog{width:min(480px,calc(100% - 32px));max-height:calc(100% - 48px);overflow:auto;padding:32px;border:1px solid var(--line);border-radius:22px;background:var(--surface);color:var(--ink);box-shadow:0 24px 80px #0003}
.email-dialog::backdrop{background:rgba(34,29,23,.5)}
.email-dialog h2{font-size:28px;margin:8px 0 12px}
.email-dialog p{font-size:15px;color:var(--ink-7)}
.email-dialog label{display:block;margin-top:24px;font-size:13px;color:var(--ink-5)}
.email-dialog input{display:block;width:100%;min-width:0;padding:12px;margin:6px 0 16px;font:16px var(--sans);background:var(--page);color:var(--ink);border:1px solid var(--line);border-radius:8px}
.dialog-close{float:right;border:0;background:transparent;font:26px/1 var(--sans);color:var(--ink-5);cursor:pointer;padding:0 0 8px 12px}
#email-status{min-height:1.8em;margin-top:12px}
button:focus-visible,input:focus-visible{outline:2px solid var(--gold-6);outline-offset:3px}
@media(max-width:640px){.email-dialog{padding:24px}}