:root{--jade:#4C9A2A;--jade-deep:#35791B;--jade-dark:#1C2B16;--mint:#8BC34A;
--gold:#E8A33D;--foam:#F7F5EC;--foam-2:#F2EFE4;--card:#FDFCF8;--ink:#2B2B26;
--ink-soft:#6B6A5E;--line:#E6E1D3;--white:#fff}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
color:var(--ink);background:var(--foam);line-height:1.75;font-size:16px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1140px;margin:0 auto;padding:0 24px}
.accent{color:var(--jade)}
h1,h2,h3{line-height:1.25;font-weight:700}
h1{font-size:clamp(34px,5vw,54px)}
h2{font-size:clamp(24px,3.4vw,36px)}
h3{font-size:19px}

/* 顶部 */
.topstrip{background:var(--jade-dark);color:#F0EFE0;font-size:13px;padding:7px 0;text-align:center}
.topstrip-inner{opacity:.92}
.topbar{position:sticky;top:0;z-index:50;background:rgba(247,245,236,.9);backdrop-filter:blur(10px);
border-bottom:1px solid var(--line)}
.topbar-inner{display:flex;align-items:center;gap:28px;height:68px}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{flex:0 0 auto}
.brand-word{display:flex;flex-direction:column;line-height:1.1}
.brand-name{font-size:20px;font-weight:800;letter-spacing:.5px}
.brand-name em{font-style:normal;color:var(--jade)}
.brand-sub{font-size:11px;color:var(--ink-soft);letter-spacing:1px}
.nav-links{display:flex;gap:26px;margin-left:auto;align-items:center}
.nav-item{position:relative}
.nav-link{font-size:15px;color:var(--ink);opacity:.82;padding:6px 0;border-bottom:2px solid transparent;
display:inline-flex;align-items:center;gap:4px}
.nav-link:hover,.nav-link.on{color:var(--jade);opacity:1;border-color:var(--gold)}
.caret{font-size:11px;opacity:.6;transition:.2s}
.nav-item:hover .caret{transform:rotate(180deg)}
.dropdown{position:absolute;top:100%;left:50%;transform:translateX(-50%);min-width:180px;background:var(--card);
border:1px solid var(--line);border-radius:12px;box-shadow:0 16px 40px rgba(28,43,22,.16);padding:8px;
opacity:0;visibility:hidden;transition:.2s;margin-top:10px;z-index:70}
.nav-item:hover .dropdown{opacity:1;visibility:visible;margin-top:4px}
.dropdown a{display:block;padding:9px 16px;border-radius:8px;font-size:14px;color:var(--ink);white-space:nowrap}
.dropdown a:hover{background:#F2EFE4;color:var(--jade)}
.nav-cta{background:var(--jade);color:#fff;padding:9px 20px;border-radius:24px;font-size:14px;font-weight:600;white-space:nowrap}
.nav-cta:hover{background:var(--jade-deep)}

/* hero */
.hero{position:relative;background:
radial-gradient(circle at 84% 14%,rgba(139,195,74,.22),transparent 44%),
radial-gradient(circle at 6% 88%,rgba(76,154,42,.12),transparent 42%),
var(--foam);overflow:hidden;padding:84px 0 100px}
.hero-inner{position:relative;display:grid;grid-template-columns:1.06fr .94fr;gap:44px;align-items:center;
max-width:1180px;margin:0 auto;padding:0 24px}
.hero-copy{text-align:left}
.hero-photos{position:relative;height:460px}
.polaroid{position:absolute;background:#fff;padding:12px 12px 46px;border-radius:8px;
box-shadow:0 26px 54px rgba(28,43,22,.28);transition:.3s}
.polaroid img{width:100%;height:auto;display:block;border-radius:3px;object-fit:cover}
.polaroid span{position:absolute;left:0;right:0;bottom:12px;text-align:center;font-size:13px;
font-family:Georgia,"Songti SC","SimSun",serif;color:var(--ink-soft)}
.pol-main{width:300px;z-index:3;left:50%;top:50%;transform:translate(-50%,-50%) rotate(-4deg)}
.pol-main img{height:300px}
.pol-mid{width:210px;z-index:2;left:2%;top:6%;transform:rotate(7deg)}
.pol-mid img{height:210px}
.pol-back{width:190px;z-index:1;right:2%;top:10%;transform:rotate(-12deg)}
.pol-back img{height:190px}
.polaroid:hover{z-index:6}
.bamboo{display:block}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:3px;color:var(--gold);font-weight:600;
text-transform:uppercase;margin-bottom:14px}
.hero .eyebrow{color:var(--jade-deep)}
.hero h1{font-family:Georgia,"Songti SC","SimSun",serif;color:var(--ink);margin-bottom:10px}
.hero .accent{color:var(--jade)}
.hero-tag{font-size:22px;font-weight:700;letter-spacing:4px;color:var(--jade-deep);margin-bottom:20px}
.hero-sub{font-size:18px;color:var(--ink-soft);max-width:520px;margin:0 0 30px}
.hero-actions{display:flex;gap:14px;justify-content:flex-start;flex-wrap:wrap;margin-bottom:26px}
.btn{display:inline-block;padding:13px 28px;border-radius:28px;font-size:15px;font-weight:600;transition:.2s}
.btn-primary{background:var(--gold);color:#2B2B26}
.btn-primary:hover{background:#D28F2A;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--jade-deep);border:1px solid var(--jade)}
.btn-ghost:hover{border-color:var(--jade-deep);color:var(--jade)}
.hero-points{display:flex;gap:12px;justify-content:flex-start;flex-wrap:wrap}
.point{background:#fff;border:1px solid var(--line);color:var(--ink-soft);
padding:6px 16px;border-radius:20px;font-size:13px}
@media(max-width:860px){
.hero-inner{grid-template-columns:1fr;gap:36px}
.hero-copy{text-align:center}
.hero-actions,.hero-points{justify-content:center}
.hero-photos{height:340px}
.pol-main{width:220px}
.pol-main img{height:220px}
.pol-mid{width:150px}
.pol-mid img{height:150px}
.pol-back{width:130px}
.pol-back img{height:130px}
}

/* section */
.section{padding:72px 0}
.section.alt{background:var(--foam-2)}
.section-head{text-align:center;max-width:640px;margin:0 auto 44px}
.section-head .eyebrow{color:var(--jade)}
.section-head p{color:var(--ink-soft);margin-top:12px}
.section-foot{text-align:center;margin-top:36px}

/* 玻璃拟态通用 */
.glass{background:rgba(253,252,248,.86);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
border:1px solid rgba(255,255,255,.6);border-radius:18px;box-shadow:0 24px 60px rgba(28,43,22,.22)}
.glass-dark{background:rgba(28,43,22,.55);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
border:1px solid rgba(255,255,255,.14);border-radius:18px;color:#fff;box-shadow:0 24px 60px rgba(0,0,0,.3)}

/* 熊猫的足迹(横向滚动照片带) */
.footprint{padding:72px 0;background:var(--foam-2)}
.fp-track{display:flex;gap:18px;overflow-x:auto;padding:10px 24px 26px;scroll-snap-type:x mandatory;
-webkit-overflow-scrolling:touch}
.fp-track::-webkit-scrollbar{height:8px}
.fp-track::-webkit-scrollbar-thumb{background:var(--jade);border-radius:4px}
.fp-item{flex:0 0 240px;margin:0;border-radius:16px;overflow:hidden;position:relative;scroll-snap-align:center;
box-shadow:0 12px 30px rgba(28,43,22,.16)}
.fp-item img{width:100%;height:300px;object-fit:cover;display:block;transition:.4s}
.fp-item:hover img{transform:scale(1.07)}
.fp-item figcaption{position:absolute;left:0;right:0;bottom:0;padding:16px;
background:linear-gradient(transparent,rgba(28,43,22,.92));color:#fff}
.fp-item strong{display:block;font-size:17px}
.fp-item span{font-size:12px;color:rgba(255,255,255,.85)}

/* 竹海节点(虚化地图 + 玻璃卡) */
.seanode{position:relative;padding:96px 0;overflow:hidden}
.seanode-bg{position:absolute;inset:0;background-size:cover;background-position:center;
filter:blur(6px);transform:scale(1.08)}
.seanode-overlay{position:absolute;inset:0;background:linear-gradient(120deg,rgba(28,43,22,.86),rgba(28,43,22,.35))}
.seanode-inner{position:relative;display:flex;justify-content:flex-start}
.seanode-copy{max-width:520px;padding:40px 42px}
.seanode-copy .eyebrow{color:#F7E9C4}
.seanode-copy h2{margin-bottom:16px}
.seanode-copy p{color:rgba(255,255,255,.85);margin-bottom:14px}
.seanode-copy .checklist li{color:#fff}
.seanode-copy .checklist li::before{color:#8BC34A}
.seanode-copy .btn-primary{margin-top:8px}

/* 熊猫的一天(全屏虚化场景) */
.scene{display:block}
.scene-block{position:relative;min-height:420px;background-size:cover;background-position:center;
display:flex;align-items:center}
.scene-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(28,43,22,.72),transparent 65%)}
.scene-inner{position:relative;width:100%}
.scene-copy{max-width:460px;padding:34px 38px}
.scene-time{display:inline-block;font-size:13px;letter-spacing:2px;color:var(--jade);font-weight:700;margin-bottom:12px}
.scene-copy h3{font-size:24px;margin-bottom:10px}
.scene-copy p{color:var(--ink-soft);font-size:14px}
.scene-block:nth-child(even) .scene-shade{background:linear-gradient(-90deg,rgba(28,43,22,.72),transparent 65%)}
.scene-block:nth-child(even) .scene-inner{display:flex;justify-content:flex-end;text-align:right}

/* 破竹三步(竖向竹竿) */
.pole{display:flex;gap:56px;align-items:center;justify-content:center;max-width:820px;margin:0 auto}
.pole-visual{flex:0 0 auto}
.pole-visual .bamboo{width:110px;filter:drop-shadow(0 10px 26px rgba(53,121,27,.25))}
.pole-steps{flex:1;display:flex;flex-direction:column}
.pole-step{display:flex;gap:20px;align-items:flex-start;padding:18px 0;border-bottom:1px dashed var(--line)}
.pole-step:last-child{border-bottom:none}
.pole-step em{flex:0 0 38px;height:38px;border-radius:10px;background:var(--jade);color:#fff;font-style:normal;
display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px}
.pole-step:nth-child(2) em{background:var(--jade-deep)}
.pole-step:nth-child(3) em{background:var(--gold);color:#2B2B26}
.pole-step h3{margin-bottom:4px}
.pole-step p{color:var(--ink-soft);font-size:14px}

/* 竹简问答 */
.bamboo-faq{max-width:720px;margin:0 auto}
.bf-item{background:var(--card);border:1px solid var(--line);border-left:6px solid var(--jade);border-radius:10px;
margin-bottom:12px;overflow:hidden;box-shadow:0 4px 12px rgba(44,64,30,.05)}
.bf-item summary{padding:18px 22px;font-weight:600;cursor:pointer;list-style:none;position:relative}
.bf-item summary::before{content:"竹";margin-right:10px;font-size:14px;color:var(--jade);font-weight:800}
.bf-item summary::after{content:"+";position:absolute;right:22px;top:14px;font-size:22px;color:var(--jade);transition:.2s}
.bf-item[open] summary::after{transform:rotate(45deg)}
.bf-item p{padding:0 22px 20px;color:var(--ink-soft);font-size:14px}

/* stats */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:-40px}
.stat-card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:26px 18px;
text-align:center;box-shadow:0 6px 22px rgba(44,64,30,.06)}
.stat-num{font-size:30px;font-weight:800;color:var(--jade);font-family:Georgia,serif}
.stat-card p{font-size:13px;color:var(--ink-soft);margin-top:6px}

/* bento */
.bento{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.people-row{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
@media(max-width:820px){.people-row{grid-template-columns:repeat(2,1fr)}}
.bento-card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:28px 24px;transition:.2s}
.bento-card:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(44,64,30,.1);border-color:var(--jade)}
.bento-ico{font-size:30px;margin-bottom:12px}
.bento-card h3{margin-bottom:8px}
.bento-card p{font-size:14px;color:var(--ink-soft)}

/* split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split.rev .split-media{order:-1}
.split-copy .eyebrow{color:var(--jade)}
.split-copy h2{margin-bottom:16px}
.split-copy h3{margin:18px 0 6px}
.split-copy p{color:var(--ink-soft);margin-bottom:12px}
.checklist{list-style:none;margin:18px 0 22px}
.checklist li{padding:6px 0 6px 28px;position:relative;color:var(--ink)}
.checklist li::before{content:"✓";position:absolute;left:0;color:var(--jade);font-weight:700}
.media-frame{border-radius:16px;overflow:hidden;box-shadow:0 16px 40px rgba(44,64,30,.16)}
.media-frame img{width:100%;height:320px;object-fit:cover}
.route-frame{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px}
.route-frame .route{display:block;width:100%;height:auto}

/* steps */
.steps{max-width:640px;margin:0 auto;display:flex;flex-direction:column;gap:0}
.step{display:flex;gap:20px;position:relative;padding-bottom:32px}
.step:not(:last-child)::before{content:"";position:absolute;left:21px;top:48px;bottom:0;width:2px;background:var(--line)}
.step-num{flex:0 0 44px;height:44px;border-radius:50%;background:var(--jade);color:#fff;
display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px}
.step-body h3{margin-bottom:4px}
.step-body p{color:var(--ink-soft);font-size:14px}

/* faq */
.faq{max-width:760px;margin:0 auto}
.reviews-sec{background:var(--bg-2)}
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.review-card{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:0 12px 32px rgba(0,0,0,.35)}
.review-card .stars{color:#f5a623;font-size:16px;letter-spacing:2px;margin-bottom:12px}
.review-card p{color:var(--ink-soft);font-size:15px;line-height:1.7}
.rv-meta{margin-top:16px;display:flex;align-items:center;gap:10px}
.rv-meta strong{font-size:14px}
.rv-meta span{font-size:12px;color:var(--ink-soft);background:var(--bg-2);padding:3px 10px;border-radius:12px}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden}
.faq-item summary{padding:18px 22px;font-weight:600;cursor:pointer;list-style:none;position:relative}
.faq-item summary::after{content:"+";position:absolute;right:22px;top:14px;font-size:22px;color:var(--jade);transition:.2s}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{padding:0 22px 20px;color:var(--ink-soft);font-size:14px}

/* platform */
.platform-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.platform-card{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;display:block;transition:.2s}
.platform-card:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(44,64,30,.12)}
.platform-top{height:6px}
.platform-body{padding:22px 20px}
.platform-ico{font-size:26px}
.platform-body h3{margin:10px 0 4px}
.platform-body p{font-size:13px;color:var(--ink-soft);margin-bottom:12px}
.platform-link{color:var(--jade);font-size:13px;font-weight:600}

/* table */
.table-wrap{overflow-x:auto;background:var(--card);border:1px solid var(--line);border-radius:14px}
table{width:100%;border-collapse:collapse;font-size:14px;min-width:520px}
th,td{padding:13px 18px;text-align:left;border-bottom:1px solid var(--line)}
thead th{background:var(--jade);color:#fff;font-weight:600}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover{background:#F7F8F2}

/* tip/callout */
.tip{background:#F2EFE4;border-left:4px solid var(--gold);padding:16px 20px;border-radius:8px;
font-size:14px;color:var(--ink);margin-top:20px}

/* page-hero (inner pages) */
.page-hero{background:linear-gradient(180deg,var(--jade-deep),var(--jade));color:#fff;padding:56px 0 60px;text-align:center}
.page-hero .eyebrow{color:#F7E9C4}
.page-hero h1{font-family:Georgia,"Songti SC","SimSun",serif;margin:6px 0 14px}
.page-hero .accent{color:#F7E9C4}
.page-sub{font-size:16px;color:rgba(255,255,255,.9);max-width:640px;margin:0 auto}
.page-hero .hero-actions{margin:24px 0 0}
.page-hero .btn-ghost{color:#fff;border-color:rgba(255,255,255,.5)}
.page-hero .btn-ghost:hover{border-color:#fff}

/* breadcrumb */
.breadcrumb{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;font-size:13px;margin-bottom:20px;opacity:.85}
.crumb a{color:#F0EFE0;border-bottom:1px dotted rgba(255,255,255,.5)}
.crumb a:hover{color:#F7E9C4}
.crumb+.crumb::before{content:"/";margin-right:8px;opacity:.5}

/* article */
.article-hero{background:linear-gradient(180deg,var(--jade-deep),var(--jade));color:#fff;padding:56px 0 48px}
.article-hero h1{font-family:Georgia,"Songti SC","SimSun",serif;font-size:clamp(26px,3.6vw,40px);margin:10px 0 14px;max-width:820px}
.article-hero .accent{color:#F7E9C4}
.article-meta{font-size:13px;color:rgba(255,255,255,.85)}
.article-layout{display:grid;grid-template-columns:240px 1fr;gap:44px;padding:48px 0 64px;align-items:start}
.toc{position:sticky;top:88px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px}
.toc h4{font-size:13px;color:var(--ink-soft);letter-spacing:1px;margin-bottom:12px}
.toc a{display:block;font-size:13px;color:var(--ink);padding:6px 0;border-left:2px solid transparent;padding-left:12px}
.toc a:hover{color:var(--jade);border-color:var(--gold)}
.article-body{max-width:720px}
.article-body h2{font-size:24px;margin:34px 0 14px;padding-left:14px;border-left:4px solid var(--jade)}
.article-body h3{font-size:18px;margin:26px 0 10px}
.article-body p{margin-bottom:16px;color:var(--ink)}
.article-body ul,.article-body ol{margin:0 0 18px 24px}
.article-body li{margin-bottom:8px}
.article-body img{border-radius:12px;margin:20px 0}
.article-body .lead{font-size:18px;color:var(--jade-deep);font-weight:500}
.related{border-top:1px solid var(--line);margin-top:40px;padding-top:30px}
.related h3{margin-bottom:16px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.related-card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;font-size:14px}
.related-card:hover{border-color:var(--jade)}
.related-card span{color:var(--jade);font-weight:600}

/* search */
.search-box{max-width:520px;margin:26px auto 0;display:flex;gap:10px}
.search-input{flex:1;padding:13px 18px;border-radius:28px;border:1px solid var(--line);font-size:15px;outline:none}
.search-input:focus{border-color:var(--jade)}
.search-btn{background:var(--gold);color:#2B2B26;border:none;padding:0 26px;border-radius:28px;font-size:15px;font-weight:600;cursor:pointer}
.search-results{max-width:640px;margin:30px auto 0;text-align:left}
.search-results .hit{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:14px 18px;margin-bottom:10px}
.search-results .hit a{color:var(--jade);font-weight:600}

/* sitemap page */
.sitegroup{margin-bottom:34px}
.sitegroup h2{font-size:20px;margin-bottom:14px;color:var(--jade-deep)}
.sitegroup ul{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.sitegroup li a{color:var(--ink);font-size:14px;border-bottom:1px dotted var(--line);display:inline-block;padding-bottom:2px}
.sitegroup li a:hover{color:var(--jade)}

/* share */
.share{display:flex;gap:14px;align-items:center;font-size:13px;margin:24px 0 0;color:var(--ink-soft)}
.share a{color:var(--jade);border-bottom:1px dotted var(--jade)}

/* final cta */
.final-cta{position:relative;overflow:hidden;color:#fff;padding:100px 0}
.cta-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:blur(5px);transform:scale(1.08)}
.cta-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(28,43,22,.9),rgba(53,121,27,.55))}
.cta-inner{position:relative;display:flex;justify-content:center}
.cta-card{max-width:560px;padding:48px 52px;text-align:center}
.cta-card h2{font-family:Georgia,"Songti SC","SimSun",serif;margin-bottom:10px}
.cta-card .accent{color:#F7E9C4}
.cta-card p{color:rgba(255,255,255,.85);margin-bottom:26px}
.cta-card .btn-primary{background:#fff;color:var(--jade-deep)}

/* footer */
.sitefoot{background:var(--jade-dark);color:#CBD8B8;padding:56px 0 30px;font-size:14px}
.foot-top{display:flex;align-items:flex-start;justify-content:space-between;gap:30px;flex-wrap:wrap;margin-bottom:30px}
.foot-brand{display:flex;align-items:center;gap:10px;color:#fff}
.foot-info{color:#A8B89A;max-width:260px}
.foot-links{display:flex;gap:20px;flex-wrap:wrap}
.foot-links a{color:#CBD8B8}
.foot-links a:hover{color:#F7E9C4}
.foot-copy{border-top:1px solid rgba(255,255,255,.12);padding-top:22px;color:#96A98A;font-size:13px;text-align:center}

/* backtop */
.backtop{position:fixed;right:22px;bottom:26px;width:44px;height:44px;border-radius:50%;border:none;
background:var(--jade);color:#fff;font-size:20px;cursor:pointer;display:none;z-index:60;box-shadow:0 6px 18px rgba(0,0,0,.2)}
.backtop:hover{background:var(--jade-deep)}

@media(max-width:900px){
.nav-links{display:none}
.stat-grid{grid-template-columns:repeat(2,1fr);margin-top:0}
.bento{grid-template-columns:repeat(2,1fr)}
.platform-grid{grid-template-columns:repeat(2,1fr)}
.split,.split.rev{grid-template-columns:1fr;gap:30px}
.split.rev .split-media{order:0}
.article-layout{grid-template-columns:1fr}
.toc{position:static}
.related-grid{grid-template-columns:1fr}
.sitegroup ul{grid-template-columns:1fr}
.fp-item{flex-basis:200px}
.fp-item img{height:240px}
.seanode-copy{max-width:100%}
.scene-block{min-height:320px}
.pole{flex-direction:column;gap:24px}
.cta-card{padding:40px 28px}
}