@font-face{font-family:"Noto Serif SC";font-style:normal;font-weight:500;font-display:swap;src:url("/fonts/NotoSerifSC-500.woff2") format("woff2")}
@font-face{font-family:"Noto Serif SC";font-style:normal;font-weight:600;font-display:swap;src:url("/fonts/NotoSerifSC-600.woff2") format("woff2")}
@font-face{font-family:"Noto Serif SC";font-style:normal;font-weight:700;font-display:swap;src:url("/fonts/NotoSerifSC-700.woff2") format("woff2")}
@font-face{font-family:"Roboto Mono";font-style:normal;font-weight:100 700;font-display:swap;src:url("/fonts/RobotoMono.woff2") format("woff2")}
:root{
  --ink:#17203a;--text:#313b52;--muted:#667085;--paper:#f8f9fb;--white:#fff;
  --blue:#2349a6;--blue-soft:#eaf0ff;--line:#e6e9ef;
  --serif:"Noto Serif SC","Songti SC","STSong",serif;
  --mono:"Roboto Mono","SFMono-Regular",Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.shell{width:min(1160px,calc(100% - 48px));margin:auto}

/* ===== 顶部导航 ===== */
.site-header{height:84px;display:flex;align-items:center;border-bottom:1px solid var(--line);background:rgba(248,249,251,.92);backdrop-filter:blur(12px);position:sticky;top:0;z-index:10}
.nav{display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:13px;font-family:var(--serif);font-size:21px;font-weight:700;letter-spacing:.05em}
.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:9px;background:var(--ink);color:white;font-size:15px}
.links{display:flex;gap:32px;color:#4c5568;font-size:14px}
.links a{transition:.2s}
.links a:hover{color:var(--blue)}

/* ===== 首页 hero ===== */
.hero{padding:92px 0 76px;display:grid;grid-template-columns:minmax(0,1.4fr) minmax(280px,.6fr);gap:72px;align-items:end}
.eyebrow{display:flex;align-items:center;gap:12px;color:var(--blue);font-size:13px;font-weight:700;letter-spacing:.14em}
.eyebrow:before{content:"";width:34px;height:2px;background:var(--blue)}
h1.hero-title{margin:28px 0 24px;font-family:var(--serif);font-size:clamp(48px,7vw,86px);line-height:1.08;letter-spacing:-.035em;font-weight:700}
.lead{max-width:680px;margin:0;font-family:var(--serif);font-size:clamp(20px,2.2vw,28px);line-height:1.75;color:#45506a}
.profile-card{border-top:3px solid var(--blue);padding:25px 0 0}
.profile-card p{margin:0 0 22px;color:#5d667a;font-size:15px;line-height:1.9}
.profile-meta{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding-top:20px;border-top:1px solid var(--line)}
.meta-label{display:block;color:#9299a8;font-size:12px;margin-bottom:6px}
.meta-value{font-size:14px;font-weight:650}

/* ===== 最新文章 feature 卡片 ===== */
.feature{background:var(--ink);color:white;border-radius:4px;padding:50px;display:grid;grid-template-columns:160px 1fr 40px;gap:42px;align-items:center;transition:transform .25s ease,box-shadow .25s ease}
.feature:hover{transform:translateY(-3px);box-shadow:0 24px 50px rgba(23,32,58,.16)}
.date{font-family:var(--mono);font-size:13px;color:#aeb8d1;line-height:1.7}
.feature h2{margin:0;font-family:var(--serif);font-size:clamp(25px,3vw,38px);line-height:1.45;font-weight:600}
.round-arrow{width:40px;height:40px;border:1px solid #606a82;border-radius:50%;display:grid;place-items:center;font-size:19px;transition:.2s}
.feature:hover .round-arrow{background:white;color:var(--ink);border-color:white}

/* ===== 文章区块 ===== */
.section{padding:92px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;margin-bottom:30px}
.section-head h2{margin:0;font-family:var(--serif);font-size:35px}
.section-head a{font-size:14px;color:var(--blue);font-weight:650}
.articles{background:var(--white);border-top:1px solid var(--ink)}
.article{display:grid;grid-template-columns:150px 1fr 30px;gap:28px;align-items:center;padding:29px 6px;border-bottom:1px solid var(--line);transition:padding .2s,background .2s}
.article:hover{padding-left:18px;padding-right:18px;background:#fafbff}
.article time{font-family:var(--mono);font-size:13px;color:#7c8495}
.article h3{margin:0;font-family:var(--serif);font-size:19px;line-height:1.65;font-weight:600}
.article span{color:var(--blue);font-size:20px}

/* ===== 声明区 ===== */
.statement{margin-top:80px;padding:60px;border:1px solid #cfd5df;background:linear-gradient(135deg,#fff 0%,#f3f6ff 100%);display:grid;grid-template-columns:1fr 1fr;gap:70px}
.statement h2{font-family:var(--serif);font-size:35px;line-height:1.5;margin:0}
.statement p{margin:0;color:#566074;font-size:16px;line-height:2}
.quote-mark{display:block;color:var(--blue);font-family:Georgia,serif;font-size:58px;height:38px;line-height:1}

/* ===== 页脚 ===== */
footer{padding:38px 0 46px;border-top:1px solid var(--line);color:#7c8494;font-size:13px}
.footer-inner{display:flex;justify-content:space-between;gap:20px}
.backtop:hover{color:var(--blue)}

/* ===== 页面通用标题区（文章列表页/关于页） ===== */
.page-head{padding:76px 0 48px}
.page-head h1{margin:0;font-family:var(--serif);font-size:clamp(34px,5vw,52px);font-weight:700;letter-spacing:-.02em;line-height:1.2}
.page-head .eyebrow{margin-bottom:18px}

/* ===== 文章详情页 ===== */
.article-head{padding:74px 0 58px;border-bottom:1px solid var(--line)}
.back{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:14px;font-weight:650;margin-bottom:42px;transition:gap .2s}
.back:hover{gap:12px}
.category{font-size:13px;color:var(--blue);font-weight:700;letter-spacing:.12em;margin-bottom:20px}
.article-head h1{max-width:920px;margin:0;font-family:var(--serif);font-size:clamp(35px,5.3vw,60px);font-weight:700;line-height:1.42;letter-spacing:-.025em}
.meta{display:flex;gap:22px;align-items:center;margin-top:34px;color:var(--muted);font-size:14px}
.meta time{font-family:var(--mono);font-size:13px}
.dot{width:3px;height:3px;border-radius:50%;background:#a7adba}
.reading{display:grid;grid-template-columns:170px minmax(0,680px);gap:75px;padding:72px 0 92px}
.aside{font-size:13px;color:var(--muted);line-height:1.8}
.aside strong{display:block;color:var(--ink);font-family:var(--serif);font-size:16px;margin-bottom:8px}
.rule{height:2px;width:32px;background:var(--blue);margin-bottom:20px}
.content{font-family:var(--serif);font-size:19px;line-height:2.08;color:var(--text)}
.content p{margin:0 0 32px}
.content .lead{font-size:23px;line-height:1.95;color:var(--ink)}
.content blockquote{margin:48px 0;padding:30px 34px;border-left:3px solid var(--blue);background:var(--white);font-size:23px;line-height:1.8;color:var(--ink)}
.content h2{font-size:28px;color:var(--ink);margin:58px 0 24px;line-height:1.55}
.content img{max-width:100%;height:auto;border-radius:8px;margin:16px 0}
.content a{color:var(--blue);border-bottom:1px solid rgba(35,73,166,.25)}
.signature{margin-top:65px;padding-top:28px;border-top:1px solid var(--line);text-align:right;color:var(--muted);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC",sans-serif;font-size:14px;line-height:1.9}
.signature strong{font-family:var(--serif);font-size:18px;color:var(--ink)}
.more{border-top:1px solid var(--line);padding:62px 0 85px}
.more-label{font-size:13px;color:var(--blue);font-weight:700;letter-spacing:.12em;margin-bottom:22px}
.next{display:grid;grid-template-columns:1fr 48px;gap:25px;align-items:center;background:var(--ink);color:white;padding:38px 42px;transition:.2s}
.next:hover{transform:translateY(-2px);box-shadow:0 20px 40px rgba(23,32,58,.14)}
.next small{display:block;color:#aeb8d1;margin-bottom:10px}
.next h2{font-family:var(--serif);font-size:24px;line-height:1.6;margin:0}
.arrow{height:44px;width:44px;border:1px solid #5f6980;border-radius:50%;display:grid;place-items:center;font-size:20px}
.next:hover .arrow{background:white;color:var(--ink);border-color:white}

/* ===== 关于页 ===== */
.about-body{max-width:680px;font-size:16.5px;line-height:1.95;color:#2c3444}
.about-body p{margin:0 0 1.4em}
.about-body h2{font-family:var(--serif);font-size:24px;font-weight:700;margin:42px 0 16px}
.about-body a{color:var(--blue);border-bottom:1px solid rgba(35,73,166,.25)}
.about-body a:hover{border-bottom-color:var(--blue)}
.views-body{max-width:680px;margin:0 auto;font-family:var(--serif);font-size:19px;line-height:2.08;color:var(--text)}
.views-body p{margin:0 0 1.6em}
.views-body h2{font-family:var(--serif);font-size:26px;font-weight:700;margin:1.9em 0 0.9em;color:var(--ink);line-height:1.5}
.views-intro{font-family:var(--serif);font-size:20px;color:var(--ink);line-height:1.9;margin:0 0 1.6em;padding-bottom:1.4em;border-bottom:1px solid var(--line)}
.qr-figure{margin:26px 0;text-align:center}
.qr-figure img{border-radius:12px;box-shadow:0 6px 24px rgba(23,32,58,.1)}
.qr-figure figcaption{color:#7c8495;font-size:13px;margin-top:12px}

/* ===== 关于页（新设计） ===== */
.about-hero{padding:86px 0 70px;display:grid;grid-template-columns:250px 1fr;gap:95px}
.about-label{color:var(--blue);font-size:13px;font-weight:700;letter-spacing:.15em;padding-top:15px}
.about-hero h1{font-family:var(--serif);font-size:clamp(40px,5.5vw,64px);line-height:1.35;margin:0 0 34px;letter-spacing:-.025em}
.about-hero p{font-family:var(--serif);font-size:20px;line-height:2;color:#4d5870;margin:0}
.facts{background:var(--ink);color:white;display:grid;grid-template-columns:repeat(3,1fr);padding:44px 52px}
.fact{padding:0 34px;border-right:1px solid #3d465e}
.fact:first-child{padding-left:0}
.fact:last-child{border:0}
.fact b{display:block;font-family:var(--serif);font-size:29px;margin-bottom:12px}
.fact span{font-size:13px;color:#b7bfd0;line-height:1.7}
.about-main{padding:90px 0;display:grid;grid-template-columns:250px 1fr;gap:95px}
.about-main h2{font-family:var(--serif);font-size:27px;margin:0}
.prose p{font-size:17px;line-height:2.05;color:#4f596d;margin:0 0 27px}
.prose p:first-child{font-family:var(--serif);font-size:23px;color:var(--ink);line-height:1.9}
.principles{margin-top:55px;border-top:1px solid var(--ink)}
.principle{display:grid;grid-template-columns:60px 1fr;gap:28px;padding:26px 0;border-bottom:1px solid var(--line)}
.principle b{font-family:var(--serif);font-size:19px}
.principle span{color:var(--muted);line-height:1.8}
.principle strong{color:var(--ink)}
.projects{padding:0 0 90px;display:grid;grid-template-columns:250px 1fr;gap:95px}
.projects>h2{font-family:var(--serif);font-size:27px;margin:0}
.project-list{display:grid;gap:18px}
.project{display:block;padding:28px 32px;background:white;border:1px solid var(--line);transition:.2s}
.project:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(23,32,58,.08);border-color:transparent}
.project-name{display:block;font-family:var(--serif);font-size:20px;font-weight:700;color:var(--ink)}
.project-name .p-arrow{color:var(--blue);font-size:15px;margin-left:6px}
.project-desc{display:block;color:var(--muted);font-size:15px;line-height:1.8;margin-top:10px}
.cta{margin-bottom:90px;padding:48px 52px;background:white;border:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:30px}
.cta h2{font-family:var(--serif);font-size:28px;margin:0 0 10px}
.cta p{margin:0;color:var(--muted)}
.cta-actions{display:flex;gap:14px;align-items:center}
.button{background:var(--blue);color:white;padding:14px 22px;font-size:14px;white-space:nowrap;transition:.2s}
.button:hover{opacity:.85}
.button.ghost{background:transparent;color:var(--blue);border:1px solid var(--blue)}
.links .active{color:var(--blue)}

/* ===== 响应式 ===== */
@media(max-width:800px){
  .shell{width:min(100% - 32px,640px)}
  .site-header{height:68px}
  .links{gap:18px}
  .hero{padding:64px 0 54px;grid-template-columns:1fr;gap:48px}
  h1.hero-title{font-size:55px}
  .lead{font-size:20px}
  .feature{padding:32px;grid-template-columns:1fr 36px;gap:20px}
  .feature .date{grid-column:1/-1}
  .feature h2{font-size:25px}
  .round-arrow{width:36px;height:36px}
  .section{padding:68px 0}
  .section-head h2{font-size:29px}
  .article{grid-template-columns:1fr 24px;gap:10px;padding:24px 4px}
  .article time{grid-column:1/-1}
  .article h3{font-size:17px}
  .statement{margin-top:60px;padding:35px 28px;grid-template-columns:1fr;gap:28px}
  .statement h2{font-size:28px}
  .footer-inner{flex-direction:column}
  .article-head{padding:48px 0 42px}
  .back{margin-bottom:32px}
  .article-head h1{font-size:35px;line-height:1.5}
  .meta{flex-wrap:wrap;gap:12px}
  .reading{grid-template-columns:1fr;gap:36px;padding:52px 0 68px}
  .aside{padding-bottom:25px;border-bottom:1px solid var(--line)}
  .content{font-size:18px;line-height:2}
  .content .lead{font-size:20px}
  .content blockquote{margin:38px 0;padding:24px;font-size:20px}
  .content h2{font-size:25px}
  .next{padding:30px 25px;grid-template-columns:1fr 38px}
  .next h2{font-size:20px}
  .arrow{width:38px;height:38px}
  .about-hero,.about-main{padding:55px 0;grid-template-columns:1fr;gap:25px}
  .about-hero h1{font-size:43px}
  .about-hero p{font-size:18px}
  .facts{grid-template-columns:1fr;padding:15px 28px}
  .fact,.fact:first-child{padding:22px 0;border-right:0;border-bottom:1px solid #3d465e}
  .fact:last-child{border:0}
  .cta{padding:34px 28px;flex-direction:column;align-items:flex-start}
  .projects{padding:0 0 55px;grid-template-columns:1fr;gap:25px}
  .foot{flex-direction:column;gap:12px}
}
@media(max-width:460px){
  .brand{font-size:18px}
  .hero{padding-top:48px}
  h1.hero-title{font-size:48px}
  .feature{padding:28px 24px}
  .section-head a{font-size:13px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}