:root{
  --bg:#f7f6f3; --paper:#ffffff; --ink:#17181b; --muted:#77787d;
  --line:#e7e6e4; --accent:#df2341; --accent-soft:#fff0f1;
  --max:1160px; --radius:20px;
  --shadow:0 18px 50px rgba(17,18,22,.06);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;background:var(--bg);color:var(--ink);line-height:1.65;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans CJK SC","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%}
button{font:inherit}

/* 顶栏 */
.site-header{position:sticky;top:0;z-index:30;display:flex;align-items:center;justify-content:space-between;
  max-width:none;padding:0 32px;height:68px;background:rgba(255,255,255,.86);
  backdrop-filter:saturate(160%) blur(12px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:9px;font-size:16px;font-weight:800;letter-spacing:-.01em}
.brand::before{content:"乐";display:grid;place-items:center;width:28px;height:28px;border-radius:8px;
  background:var(--accent);color:#fff;font-size:14px;font-weight:700}
.brand small{color:var(--muted);font-size:10px;font-weight:600;letter-spacing:.14em}
#site-nav{display:flex;gap:26px;font-size:13.5px;font-weight:600;color:#3c3d42}
#site-nav a{padding:6px 0;border-bottom:2px solid transparent}
#site-nav a:hover{color:var(--accent)}
#site-nav a.active{color:var(--accent);border-bottom-color:var(--accent)}

#app{max-width:var(--max);margin:0 auto;padding:0 32px}

/* 通用 */
.eyebrow{margin:0 0 18px;font-size:11.5px;font-weight:800;letter-spacing:.18em;text-transform:uppercase;
  color:var(--accent);display:flex;align-items:center;gap:10px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);display:inline-block}
.button{display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 20px;border-radius:10px;
  background:var(--accent);color:#fff;font-size:13.5px;font-weight:700;border:1px solid var(--accent)}
.button:hover{filter:brightness(1.06)}
.text-link{font-size:13.5px;font-weight:700;border-bottom:1px solid var(--ink);padding-bottom:2px}
.text-link:hover{color:var(--accent);border-color:var(--accent)}
.more{display:inline-flex;align-items:center;gap:6px;margin-top:26px;font-size:13px;font-weight:700;
  border-bottom:1px solid var(--ink);padding-bottom:2px}
.more:hover{color:var(--accent);border-color:var(--accent)}

/* 首屏 */
.hero{padding:92px 0 84px;max-width:920px}
.hero h1{font-size:clamp(40px,5.2vw,64px);line-height:1.1;letter-spacing:-.045em;font-weight:800;margin:0 0 24px}
.hero .lead{max-width:640px;margin:0;color:#4b4c52;font-size:18px;line-height:1.8}
.hero .question{max-width:760px;margin:36px 0 32px;font-size:clamp(20px,2.2vw,26px);line-height:1.55;
  font-weight:600;letter-spacing:-.02em;color:#2a2b30}
.hero-actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap}

/* 区块 */
.section{padding:var(--section-gap,72px) 0;border-top:1px solid var(--line)}
.section-head{display:grid;grid-template-columns:1fr 380px;gap:40px;align-items:end;margin-bottom:34px}
.section-head h2{margin:0;font-size:clamp(28px,3.4vw,38px);line-height:1.2;letter-spacing:-.035em;font-weight:800}
.section-note{margin:0;color:var(--muted);font-size:13.5px;line-height:1.8}

/* NOW */
.now-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.now-item{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:24px;
  box-shadow:var(--shadow);display:flex;flex-direction:column;min-height:190px}
.now-no{font-size:11px;font-weight:800;letter-spacing:.12em;color:var(--accent)}
.now-item h4{margin:10px 0 8px;font-size:19px;letter-spacing:-.02em}
.now-item p{margin:0 0 16px;color:var(--muted);font-size:13px;line-height:1.8}
.now-item a{margin-top:auto;font-size:12.5px;font-weight:700;color:var(--ink)}
.now-item a:hover{color:var(--accent)}

/* 项目 */
.project-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.project-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow);display:flex;flex-direction:column;min-height:230px;
  transition:transform .2s,box-shadow .2s}
.project-card:hover{transform:translateY(-2px);box-shadow:0 24px 60px rgba(17,18,22,.09)}
.status{display:inline-flex;align-items:center;height:22px;padding:0 9px;border-radius:999px;
  background:var(--accent-soft);color:var(--accent);font-size:10.5px;font-weight:800;letter-spacing:.06em}
.project-card h3{margin:14px 0 10px;font-size:24px;letter-spacing:-.03em;line-height:1.25}
.project-card h3 a:hover{color:var(--accent)}
.project-card p{margin:0 0 14px;color:var(--muted);font-size:13.5px;line-height:1.8}
.pc-host{font-family:ui-monospace,Menlo,monospace;font-size:11px;color:#9a9ba1;margin:0 0 16px}
.pc-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto}
.card-link{display:inline-flex;align-items:center;height:34px;padding:0 14px;border-radius:8px;
  background:var(--ink);color:#fff;font-size:12.5px;font-weight:700}
.card-link:hover{background:var(--accent)}
.pc-archive{font-size:12px;color:var(--muted)}
.pc-archive:hover{color:var(--accent)}

/* 文章列表 */
.post-list{display:grid;gap:12px}
.post-row{display:block;background:var(--paper);border:1px solid var(--line);border-radius:16px;
  padding:22px 24px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}
.post-row:hover{transform:translateY(-2px);box-shadow:0 24px 60px rgba(17,18,22,.09)}
.pr-meta{display:flex;gap:12px;font-size:11.5px;color:var(--muted)}
.pr-meta span{color:var(--accent);font-weight:700}
.post-row h3{margin:8px 0 6px;font-size:20px;letter-spacing:-.02em}
.post-row:hover h3{color:var(--accent)}
.post-row p{margin:0;color:var(--muted);font-size:13px;line-height:1.75;max-width:760px}

/* 内页头部 */
.page-intro{position:relative;padding:84px 0 36px;border-bottom:1px solid var(--line)}
.page-intro h1{font-size:clamp(36px,4.6vw,56px);line-height:1.12;letter-spacing:-.04em;font-weight:800;margin:12px 0 18px}
.page-intro .lead{max-width:640px;color:#4b4c52;font-size:16px;line-height:1.8}
.page-meta{position:absolute;right:0;bottom:40px;text-align:right;font-size:11.5px;color:var(--muted);line-height:1.9}
.project-hero{padding:76px 0 36px;max-width:900px}
.project-hero h1{font-size:clamp(38px,5vw,60px);letter-spacing:-.04em;font-weight:800;margin:12px 0 16px}
.project-hero .lead{color:#4b4c52;font-size:17px;max-width:640px}

/* 正文 */
.article{max-width:780px;margin:56px auto 0;background:var(--paper);border:1px solid var(--line);
  border-radius:24px;padding:52px 56px;box-shadow:var(--shadow)}
.article-header h1{font-size:clamp(30px,3.6vw,44px);line-height:1.2;letter-spacing:-.035em;font-weight:800;margin:10px 0 14px}
.article-header .lead{color:var(--muted);font-size:15px;line-height:1.8}
.article-body{font-size:16px;line-height:1.95;color:#2c2d33;padding:26px 0 10px}
.article-body h2{font-size:22px;letter-spacing:-.02em;margin:32px 0 12px}
.article-body p{margin:0 0 18px}
.article-body blockquote{margin:22px 0;padding:14px 18px;border-left:3px solid var(--accent);
  background:var(--accent-soft);border-radius:0 10px 10px 0;color:#5a4a4c}
.article-body img{border-radius:12px}
.article-foot{display:flex;justify-content:space-between;padding:22px 56px 0;margin:0 -56px;
  border-top:1px solid var(--line)}
.block{max-width:780px;padding:8px 0 32px}
.block h2{font-size:22px;letter-spacing:-.02em;margin:26px 0 10px}
.block p{margin:0;color:#3c3d42;font-size:16px;line-height:1.95}
.about-text{font-size:17px;line-height:2}

footer{display:flex;justify-content:space-between;max-width:var(--max);margin:0 auto;
  padding:26px 32px 46px;color:var(--muted);font-size:12px;border-top:1px solid var(--line)}

@media (max-width:900px){
  .site-header{padding:0 18px;height:60px}
  #site-nav{gap:16px;font-size:12.5px}
  #app{padding:0 18px}
  .hero{padding:56px 0 48px}
  .section{padding:48px 0}
  .section-head{grid-template-columns:1fr;gap:12px}
  .now-grid{grid-template-columns:1fr}
  .project-grid{grid-template-columns:1fr}
  .page-intro{padding:52px 0 26px}
  .page-meta{position:static;text-align:left;margin-top:12px}
  .project-hero{padding:48px 0 24px}
  .article{margin-top:28px;padding:28px 22px;border-radius:18px}
  .article-foot{margin:0 -22px;padding:18px 22px 0}
  .brand small{display:none}
}

/* 修正区块标题位置 */
.section-head{display:grid;grid-template-columns:minmax(0,1fr) 360px;grid-template-areas:"eyebrow note" "title note";column-gap:48px;align-items:end}
.section-head .eyebrow{grid-area:eyebrow;margin-bottom:12px}
.section-head h2{grid-area:title}
.section-note{grid-area:note;align-self:end;padding-bottom:4px}
@media (max-width:900px){
  .section-head{grid-template-columns:1fr;grid-template-areas:"eyebrow" "title" "note";row-gap:10px}
}

.hl{color:var(--accent)}

/* 两条路 */
.offer-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.offer-card{background:#17181b;color:#fff;border-radius:20px;padding:30px;display:flex;flex-direction:column;min-height:230px}
.offer-card:nth-child(2){background:#fff;color:var(--ink);border:1px solid var(--line)}
.offer-label{font-size:11px;font-weight:800;letter-spacing:.16em;color:var(--accent)}
.offer-card h3{font-size:27px;margin:12px 0 10px;letter-spacing:-.035em}
.offer-card p{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.66);margin:0 0 20px}
.offer-card:nth-child(2) p{color:var(--muted)}
.offer-cta{margin-top:auto;align-self:flex-start;display:inline-flex;align-items:center;height:38px;padding:0 16px;
  border-radius:8px;background:var(--accent);color:#fff;font-size:13px;font-weight:700}
.offer-card:nth-child(2) .offer-cta{background:var(--ink)}
.offer-cta:hover{filter:brightness(1.08)}
@media (max-width:900px){.offer-grid{grid-template-columns:1fr}}

.hero .eyebrow:empty{display:none}

/* 服务 */
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.service-card{background:var(--paper);border:1px solid var(--line);border-radius:20px;padding:26px;
  box-shadow:var(--shadow);display:flex;flex-direction:column;min-height:260px}
.service-top{display:flex;justify-content:space-between;align-items:center}
.service-no{font-size:11px;font-weight:800;letter-spacing:.14em;color:var(--accent)}
.service-sub{font-size:11px;color:var(--muted)}
.service-card h3{font-size:23px;margin:14px 0 10px;letter-spacing:-.03em}
.service-card p{font-size:13.5px;color:var(--muted);line-height:1.85;margin:0 0 14px}
.service-meta{font-size:11.5px;color:#9a9ba1;margin-bottom:16px}
.service-cta{margin-top:auto;align-self:flex-start;display:inline-flex;align-items:center;height:34px;padding:0 14px;
  border-radius:8px;background:var(--ink);color:#fff;font-size:12.5px;font-weight:700}
.service-cta:hover{background:var(--accent)}
.service-extra{margin-top:18px;font-size:12.5px;color:var(--muted)}
@media (max-width:900px){.service-grid{grid-template-columns:1fr}}

.service-grid{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.service-card{min-height:280px}
.service-card h3{font-size:26px}

/* 介绍区 */
.intro-block{display:grid;grid-template-columns:1fr 1fr;gap:56px;padding:36px 0 60px;border-top:1px solid var(--line)}
.intro-row{display:grid;grid-template-columns:86px 1fr;gap:18px;padding:16px 0;border-bottom:1px solid var(--line)}
.intro-row:first-child{padding-top:0}
.intro-label{font-size:11.5px;font-weight:800;letter-spacing:.12em;color:var(--accent);padding-top:4px}
.intro-row p{margin:0;font-size:14.5px;line-height:1.85;color:#2c2d33}
.intro-para{margin:0;font-size:15.5px;line-height:2;color:#3c3d42}
.intro-note{margin:18px 0 0;font-size:11.5px;color:var(--muted);letter-spacing:.04em}
@media (max-width:900px){.intro-block{grid-template-columns:1fr;gap:24px;padding:24px 0 44px}}

.intro-block.single{grid-template-columns:1fr}
@media (max-width:900px){.intro-block.single{grid-template-columns:1fr}}

/* 首屏重排：宋体名字 + 数字 */
.hero{padding:76px 0 64px}
.hero h1{font-family:"Songti SC","STSong",Georgia,serif;font-weight:700;font-size:clamp(56px,7vw,92px);letter-spacing:-.02em;line-height:1.05}
.hero .lead{margin-top:18px;font-size:15.5px;color:#4b4c52;letter-spacing:.02em}
.hero-stats{display:flex;gap:64px;margin-top:44px;padding-top:28px;border-top:1px solid var(--line);max-width:720px}
.hero-stats .stat b{font-family:Georgia,"Songti SC",serif;font-size:44px;font-weight:600;letter-spacing:-.03em;line-height:1}
.hero-stats .stat span{display:block;margin-top:8px;font-size:12px;color:var(--muted);letter-spacing:.06em}
.intro-block{padding-top:26px}
.intro-row{padding:14px 0}
@media (max-width:900px){.hero-stats{gap:32px}.hero-stats .stat b{font-size:34px}}

/* 数字移到右侧竖排 */
.hero{position:relative;padding-right:320px}
.hero-stats{position:absolute;right:0;bottom:66px;display:grid;gap:24px;text-align:right;
  border-top:0;padding-top:0;margin:0;max-width:none}
.hero-stats .stat b{font-size:46px}
.hero-stats .stat span{font-size:11.5px;letter-spacing:.08em}
@media (max-width:900px){
  .hero{padding-right:0}
  .hero-stats{position:static;display:flex;gap:32px;text-align:left;margin-top:32px;padding-top:20px;border-top:1px solid var(--line)}
  .hero-stats .stat b{font-size:30px}
}

/* 左右两栏：左边名字，右边数字 */
.hero{display:flex;justify-content:space-between;align-items:flex-end;gap:56px;padding:76px 0 64px}
.hero-main{min-width:0;max-width:760px}
.hero-stats{position:static;display:grid;gap:20px;text-align:right;margin:0;padding:0;border:0;max-width:none}
@media (max-width:900px){
  .hero{flex-direction:column;align-items:flex-start;gap:8px}
  .hero-stats{display:flex;gap:28px;text-align:left;margin-top:24px;padding-top:18px;border-top:1px solid var(--line)}
}

/* 顶栏微调 */
#site-nav{gap:22px;font-size:13px;letter-spacing:.02em}
#site-nav a{padding:4px 0}
.site-header{height:64px}

.project-grid{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
@media (max-width:900px){.project-grid{grid-template-columns:1fr}}

.project-grid.wide{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
@media (max-width:900px){.project-grid.wide{grid-template-columns:1fr}}

/* 4 个项目时用两列更稳 */
.project-grid.wide{grid-template-columns:repeat(2,1fr)}
@media (max-width:900px){.project-grid.wide{grid-template-columns:1fr}}

/* 评论 */
.comments{max-width:780px;margin:36px auto 0;padding:0 4px}
.c-title{font-size:16px;letter-spacing:-.01em;margin:0 0 16px}
.c-list{border-top:1px solid var(--line)}
.c-item{padding:16px 0;border-bottom:1px solid var(--line)}
.c-head{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);margin-bottom:6px}
.c-head b{color:var(--ink);font-weight:600}
.c-item p{margin:0;font-size:14.5px;line-height:1.8;color:#2c2d33}
.c-empty{color:var(--muted);font-size:13px;padding:16px 0}
.c-form{margin-top:18px}
.c-form textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:12px;font:inherit;resize:vertical}
.c-form button{margin-top:10px;height:38px;padding:0 18px;border:0;border-radius:9px;background:var(--accent);color:#fff;font-weight:700;cursor:pointer}
.c-login{font-size:13px;color:var(--muted)}
.c-login a{color:var(--accent)}