/* 自托管字体（子集化，去 Google 依赖） */
@font-face{font-family:"Oswald";src:url(../fonts/oswald.woff2) format("woff2");font-weight:200 700;font-style:normal;font-display:swap}
@font-face{font-family:"Open Sans";src:url(../fonts/opensans.woff2) format("woff2");font-weight:300 800;font-style:normal;font-display:swap}
@font-face{font-family:"Noto Serif SC";src:url(../fonts/notoserifsc.woff2) format("woff2");font-weight:200 900;font-style:normal;font-display:swap}
/* 风精灵溪谷 — 主题样式（nirvana 结构 + logo 青碧配色） */
:root{
  --ink:#13343a; --teal:#0e5f6e; --teal-d:#0a3f49; --teal-dd:#0b2c33;
  --aqua:#1a84a0; --aqua-l:#46b6cc; --ice:#d9f3f7;
  --paper:#fff; --muted:#6c858b; --line:#e4edee;
  --sans:"Open Sans","PingFang SC","Microsoft YaHei",sans-serif;
  --disp:"Oswald","Noto Serif SC","PingFang SC",sans-serif;
  --serifcjk:"Noto Serif SC","Songti SC",serif;
  --waline-theme-color:#0e5f6e; --waline-active-color:#1a84a0;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--sans);line-height:1.8;color:#2b3b3e;
  background:
    radial-gradient(1200px 380px at 50% -60px,#d6ebee 0%,rgba(214,235,238,0) 70%),
    linear-gradient(#e9f0f0,#e2ebeb);
  background-attachment:fixed;min-height:100vh}
a{color:var(--aqua);text-decoration:none}a:hover{color:var(--aqua-l)}
img{max-width:100%;height:auto}
.wrap{max-width:1600px;margin:0 auto;padding:0 22px}
.topbar{height:5px;background:linear-gradient(90deg,var(--teal-dd),var(--teal),var(--aqua-l),var(--teal),var(--teal-dd))}
.box{background:var(--paper);box-shadow:0 2px 24px rgba(16,52,58,.12);border-radius:8px;margin:22px auto 30px;overflow:hidden}

/* 页头 */
.site-head{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:30px 36px 20px;
  background-image:linear-gradient(90deg,#fff 0%,rgba(255,255,255,.74) 34%,rgba(255,255,255,.22) 60%,rgba(255,255,255,.44) 100%),url(../img/banner.jpg);
  background-position:right center;background-size:cover;background-repeat:no-repeat}
.site-head .logo{height:188px;display:block}
.tagline{text-align:right;line-height:1.4;flex-shrink:0}
.tl-zh{display:block;font-family:var(--serifcjk);font-weight:600;font-size:1.2rem;color:var(--teal);letter-spacing:.16em;text-shadow:0 1px 6px rgba(255,255,255,.95),0 0 2px rgba(255,255,255,.95)}
.tl-en{display:block;font-family:var(--disp);font-weight:500;text-transform:uppercase;letter-spacing:.3em;font-size:.72rem;color:#55777e;margin-top:6px;text-shadow:0 1px 4px rgba(255,255,255,.95)}

/* 导航 */
nav.main{background:linear-gradient(var(--teal),var(--teal-d));box-shadow:inset 0 1px 0 rgba(255,255,255,.08);display:flex;flex-wrap:wrap;align-items:center;padding:0 18px}
nav.main ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap}
nav.main a{display:block;color:#eafafa;font-family:var(--serifcjk);font-weight:600;letter-spacing:.14em;
  font-size:.96rem;padding:13px 20px;transition:background .2s}
nav.main a:hover{background:rgba(255,255,255,.12);color:#fff}
nav.main a.active{background:var(--teal-dd);color:#fff;box-shadow:inset 0 -3px 0 var(--aqua-l)}
.nav-toggle{display:none;margin-left:auto;background:none;border:0;cursor:pointer;padding:13px 18px;flex-direction:column;gap:5px}
.nav-toggle span{display:block;width:22px;height:2px;background:#eafafa;border-radius:2px;transition:transform .25s,opacity .2s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.crumb{padding:10px 34px;color:var(--muted);font-size:.82rem;border-bottom:1px solid var(--line)}
.crumb a{color:var(--teal)}

/* 主体两栏 */
.body{display:flex;gap:34px;padding:26px 34px 36px;align-items:flex-start}
main{flex:1;min-width:0}
aside{width:272px;flex-shrink:0}
.page-title{font-family:var(--serifcjk);font-weight:700;color:var(--ink);font-size:1.7rem;margin:.2rem 0 1.1rem}

/* 文章卡（列表/首页） */
article.post{padding:0 0 22px;margin-bottom:24px;border-bottom:1px solid var(--line)}
article.post:last-child{border-bottom:0;margin-bottom:0}
.post h2{font-family:var(--serifcjk);font-weight:700;font-size:1.5rem;line-height:1.35;margin:.1rem 0 .5rem}
.post h2 a{color:var(--ink)}.post h2 a:hover{color:var(--teal)}
.post-head{display:flex;justify-content:space-between;align-items:baseline;gap:4px 16px;flex-wrap:wrap;margin-bottom:.5rem}
.post-head h2{margin:.1rem 0 0}
.ptags{display:flex;flex-wrap:wrap;gap:6px;justify-content:flex-end;flex-shrink:0;max-width:52%}
.ptag{font-size:.72rem;color:var(--muted);background:#eef5f6;border:1px solid #e1ecec;padding:1px 9px;border-radius:11px;white-space:nowrap;line-height:1.75}
.ptag::before{content:"#";opacity:.5;margin-right:1px}
.ptag:hover{background:var(--teal);color:#fff;border-color:var(--teal)}
.pmeta a.cat:hover{background:var(--teal);color:#fff}
.pmeta{display:flex;flex-wrap:wrap;gap:8px 15px;align-items:center;color:var(--muted);font-size:.82rem;margin-bottom:.6rem}
.pmeta .cat{display:inline-block;background:var(--ice);color:var(--teal);font-weight:700;font-size:.72rem;padding:2px 10px;border-radius:12px}
.excerpt{color:#45585c;margin:0 0 .85rem}
.post h2,.excerpt,.article-content,.widget li,.pmeta{overflow-wrap:anywhere}
.more{font-family:var(--disp);font-weight:500;text-transform:uppercase;letter-spacing:.05em;font-size:.82rem;color:var(--teal)}
.more:hover{color:var(--aqua-l)}.more::after{content:" →"}

/* 分页 */
.pager{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin-top:26px}
.pager a,.pager span{min-width:34px;text-align:center;padding:6px 11px;border-radius:6px;
  border:1px solid var(--line);font-family:var(--disp);font-size:.85rem;color:var(--teal)}
.pager .active,.pager .current{background:var(--teal);color:#fff;border-color:var(--teal)}

/* 文章内页 */
.article h1{font-family:var(--serifcjk);font-weight:700;color:var(--ink);font-size:1.9rem;line-height:1.3;margin:.2rem 0 .6rem}
.article .meta{color:var(--muted);font-size:.84rem;margin-bottom:1.3rem;padding-bottom:1rem;border-bottom:1px solid var(--line)}
.article-content{font-size:1.02rem}
.article-content h2,.article-content h3,.article-content h4{font-family:var(--serifcjk);color:var(--ink);line-height:1.4;margin:1.6rem 0 .6rem}
.article-content h2{font-size:1.4rem;padding-bottom:.3rem;border-bottom:2px solid var(--line)}
.article-content h3{font-size:1.18rem}
.article-content a{text-decoration:underline;text-underline-offset:2px}
.article-content blockquote{margin:1.2rem 0;padding:.5rem 1.1rem;border-left:4px solid var(--aqua-l);background:#f3fafb;color:#3d5257;border-radius:0 6px 6px 0}
.article-content pre{background:#0e2a30;color:#dff3f6;border-radius:8px;padding:1rem 1.1rem;overflow:auto;font-size:.9rem}
.article-content code{background:#eef5f6;color:#0d5663;border-radius:4px;padding:.1em .4em;font-size:.92em}
.article-content pre code{background:none;color:inherit;padding:0}
.article-content img{border-radius:6px}
.article-content table{border-collapse:collapse;width:100%;margin:1.2rem 0;font-size:.94rem}
.article-content th,.article-content td{border:1px solid var(--line);padding:.5rem .7rem}
.article-content th{background:#eef6f7;color:var(--ink)}
.article-content hr{border:0;border-top:1px solid var(--line);margin:1.6rem 0}

/* 评论区 */
.comments{margin-top:2.4rem}
.comments h3{font-family:var(--serifcjk);color:var(--ink);font-size:1.3rem;margin:0 0 1rem;
  padding-bottom:.5rem;border-bottom:2px solid var(--line);position:relative}
.comments h3::after{content:"";position:absolute;left:0;bottom:-2px;width:46px;height:3px;border-radius:2px;background:var(--aqua-l)}

/* 侧栏 widget */
.widget{margin-bottom:26px}
.widget h4{font-family:var(--serifcjk);letter-spacing:.1em;font-size:1rem;color:var(--ink);font-weight:700;
  margin:0 0 12px;padding-bottom:9px;position:relative}
.widget h4::before{content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;background:linear-gradient(90deg,var(--teal),rgba(14,95,110,0))}
.widget h4::after{content:"";position:absolute;left:0;bottom:-1px;width:42px;height:4px;border-radius:2px;background:var(--aqua-l)}
.widget ul{list-style:none;margin:0;padding:0}
.widget li{padding:6px 0;border-bottom:1px dashed #eaf1f1;font-size:.9rem}
.widget li a{color:#34565c}.widget li a:hover{color:var(--teal)}
.widget .meta{color:var(--muted);font-size:.78rem}
/* 标签云 */
.tagcloud{line-height:2.1}
.tagcloud a{display:inline-block;background:#f0f6f6;color:var(--teal);border:1px solid #dcebec;
  padding:2px 10px;border-radius:14px;margin:0 6px 7px 0;line-height:1.5}
.tagcloud a:hover{background:var(--teal);color:#fff;border-color:var(--teal)}
.tagcloud a .meta{color:inherit;opacity:.65;font-size:.72em}
/* 日历 */
#calendar .meta a{color:var(--teal);font-weight:700;padding:0 4px}
table.cal{border-collapse:collapse;width:100%;font-size:.8rem;margin-top:.2rem}
table.cal th{color:var(--muted);font-weight:600;padding:4px 0;font-size:.72rem}
table.cal td{text-align:center;padding:4px 0;color:#53686c}
table.cal td a{display:block;background:var(--ice);color:var(--teal);font-weight:700;border-radius:5px;text-decoration:none}
table.cal td a:hover{background:var(--aqua-l);color:#fff}
/* 近期评论 */
#recent-comments ul li a{font-weight:600;color:var(--teal)}
/* Pagefind 搜索框配色 */
#search{--pagefind-ui-primary:#0e5f6e;--pagefind-ui-text:#2b3b3e;--pagefind-ui-background:#fff;
  --pagefind-ui-border:#cfe2e4;--pagefind-ui-border-radius:8px;--pagefind-ui-font:var(--sans)}

/* 页脚 */
footer.site{background:linear-gradient(var(--teal-d),var(--teal-dd));color:#bfe0e4}
.foot-in{display:flex;gap:30px;align-items:center;justify-content:space-between;max-width:1600px;margin:0 auto;padding:26px 34px;flex-wrap:wrap}
.foot-brand{display:flex;align-items:center;gap:16px}
.foot-brand img{height:62px}
.foot-brand .t{font-family:var(--serifcjk);font-weight:700;font-size:1.12rem;color:#eafafa}
.foot-brand .s{font-family:var(--disp);letter-spacing:.14em;text-transform:uppercase;font-size:.72rem;color:#8fc4cb}
.foot-nav{display:flex;gap:22px;flex-wrap:wrap;font-family:var(--serifcjk);letter-spacing:.06em;font-size:.9rem}
.foot-nav a{color:#bfe0e4}.foot-nav a:hover{color:#fff}
.copy{text-align:center;color:#6f9aa1;font-size:.78rem;padding:12px;background:var(--teal-dd);border-top:1px solid rgba(255,255,255,.06)}
.wl-power{display:none!important}

@media(max-width:860px){
  .wrap{padding:0}
  .box{margin:0 0 14px;border-radius:0}
  .body{flex-direction:column;padding:16px}
  .crumb{padding:9px 16px}
  aside{width:auto;margin-top:10px}
  .site-head{flex-direction:column;align-items:center;padding:18px;
    background-image:linear-gradient(rgba(255,255,255,.8),rgba(255,255,255,.8)),url(../img/banner.jpg);
    background-position:center;background-size:cover}
  .site-head .logo{height:112px}
  .tagline{display:none}
  nav.main{flex-wrap:wrap;align-items:center;padding:0 0 0 8px}
  .nav-toggle{display:flex}
  nav.main .nav-more{flex-basis:100%;width:100%;flex-direction:column;display:none;
    background:var(--teal-d);border-top:1px solid rgba(255,255,255,.12)}
  nav.main .nav-more.open{display:flex}
  .nav-more li{width:100%}
  .nav-more a{padding:13px 22px;border-top:1px solid rgba(255,255,255,.06)}
  .foot-in{flex-direction:column;text-align:center;padding:22px 16px}
}