*{box-sizing:border-box}
body{
  margin:0;
  font-family:"SF Pro Display","SF Pro Text","PingFang SC","Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer}

.page-bg{
  position:fixed;
  inset:0;
  overflow:hidden;
  pointer-events:none;
  z-index:-2;
  background:var(--bg);
}
.page-bg-image{
  position:absolute;
  inset:0;
  background-image:var(--light-bg-image);
  background-position:center;
  background-size:cover;
  opacity:.12;
}
html[data-theme="dark"] .page-bg-image{background-image:var(--dark-bg-image);opacity:.14}
.page-gradient{
  position:absolute;
  border-radius:50%;
  opacity:.5;
}
.page-gradient-a{
  width:50vw;height:50vw;left:-10vw;top:-15vw;
  background:rgba(10,132,255,.15);
}
.page-gradient-b{
  width:45vw;height:45vw;right:-10vw;top:10vh;
  background:rgba(94,92,230,.1);
}

.site-frame{
  width:min(calc(100% - 32px), var(--content-max));
  margin:24px auto 32px;
}

.site-header-wrap{position:relative;z-index:100;width:min(calc(100% - 32px), var(--content-max));margin:0 auto}
.site-footer-wrap{width:min(calc(100% - 32px), var(--content-max));margin:0 auto}

.reading-progress{
  position:fixed;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg, var(--brand), rgba(255,255,255,.85));
  z-index:100;
  transform:scaleX(0);
  transform-origin:left center;
}

.glass-shell,
.glass-card{
  position:relative;
  background:var(--bg-elevated);
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
}
@supports (backdrop-filter:blur(1px)){
  .glass-shell{
    backdrop-filter:blur(var(--blur-md)) saturate(140%);
    -webkit-backdrop-filter:blur(var(--blur-md)) saturate(140%);
  }
}
.glass-shell{border-radius:var(--hero-radius, 32px)}
.glass-card{border-radius:var(--radius-lg)}
.compact-card{padding:14px 16px}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--brand);
  font-size:.86rem;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;
}
.hero-actions,.meta-row,.tag-row,.chip-row{display:flex;flex-wrap:wrap;gap:12px}
.meta-row{align-items:center}
.meta-pill,
.chip,
.tag-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:var(--bg-soft);
  color:var(--text);
}
.meta-pill.accent,.chip.is-active{background:var(--brand-soft);border-color:transparent;color:var(--brand)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:46px;padding:0 18px;border-radius:var(--radius-pill);
  border:1px solid transparent;font-weight:700;transition:.25s ease;
}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-soft)}
.btn-secondary{background:var(--bg-soft);border-color:var(--line)}

.section-head{display:flex;align-items:end;justify-content:space-between;gap:12px;margin-bottom:16px}
.section-head h2{margin:0;font-size:1.2rem}
.section-head span{color:var(--text-3);font-size:.92rem}
.section-head.compact h2{font-size:1rem}

.single-article{display:grid;gap:24px}
.hero-home,.hero-archive,.not-found{
  display:grid;grid-template-columns:1.2fr .9fr;gap:22px;
  padding:26px;
  min-height:260px;
}
.hero-copy{display:flex;flex-direction:column;justify-content:center;gap:16px}
.hero-copy h1{margin:0;font-size:clamp(2rem, 4vw, 4.6rem);line-height:1.02;letter-spacing:-.04em}
.hero-subtitle{margin:0;max-width:60ch;color:var(--text-2);font-size:1.06rem}
.hero-panel{display:grid;gap:14px;padding:18px}
.hero-stat{padding:16px;border-radius:var(--radius-md);background:var(--bg-soft);border:1px solid var(--line)}
.hero-stat .label{display:block;color:var(--text-3);font-size:.9rem;margin-bottom:6px}
.hero-stat strong{font-size:1.02rem}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:22px;align-items:start}
.hero-weather{
  display:grid;gap:18px;min-height:248px;overflow:hidden;isolation:isolate;
  background:linear-gradient(145deg, rgba(10,132,255,.12), rgba(255,255,255,.55) 58%, rgba(10,132,255,.08))
}
html[data-theme="dark"] .hero-weather{
  background:linear-gradient(145deg, rgba(41,151,255,.18), rgba(255,255,255,.08) 54%, rgba(41,151,255,.12))
}
.weather-card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.weather-location{display:block;font-size:1.18rem;line-height:1.2}
.weather-pill{
  display:inline-flex;align-items:center;min-height:32px;padding:0 12px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.52);color:var(--text-2);font-size:.85rem
}
html[data-theme="dark"] .weather-pill{background:rgba(255,255,255,.08)}
.weather-main{display:grid;grid-template-columns:minmax(0,1fr) 96px;gap:16px;align-items:center}
.weather-temp{
  display:flex;align-items:flex-start;gap:6px;
  font-size:clamp(2.8rem, 5vw, 3.8rem);font-weight:800;line-height:1;letter-spacing:-.08em
}
.weather-temp small{margin-top:.38rem;font-size:1rem;color:var(--text-3);letter-spacing:0}
.weather-summary{margin:12px 0 0;color:var(--text-2)}
.weather-visual{
  width:96px;height:96px;border-radius:28px;justify-self:end;
  display:grid;place-items:center;font-size:1.7rem;font-weight:700;letter-spacing:.08em;
  border:1px solid rgba(255,255,255,.28);color:#fff;
  background:linear-gradient(145deg, rgba(255,167,29,.92), rgba(255,109,0,.82));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.24)
}
.hero-weather[data-weather-kind="cloud"] .weather-visual{
  background:linear-gradient(145deg, rgba(104,126,154,.94), rgba(71,89,113,.84))
}
.hero-weather[data-weather-kind="rain"] .weather-visual{
  background:linear-gradient(145deg, rgba(51,154,240,.94), rgba(16,84,169,.84))
}
.hero-weather[data-weather-kind="storm"] .weather-visual{
  background:linear-gradient(145deg, rgba(74,57,167,.94), rgba(31,24,83,.88))
}
.hero-weather[data-weather-kind="snow"] .weather-visual{
  background:linear-gradient(145deg, rgba(157,210,255,.96), rgba(85,162,220,.84))
}
.hero-weather[data-weather-kind="fog"] .weather-visual{
  background:linear-gradient(145deg, rgba(136,146,160,.94), rgba(86,96,111,.84))
}
.hero-weather[data-weather-state="error"] .weather-visual{
  background:linear-gradient(145deg, rgba(255,159,10,.92), rgba(191,90,24,.84))
}
.weather-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.weather-metric{
  padding:14px;border-radius:18px;border:1px solid var(--line);
  background:rgba(255,255,255,.42)
}
html[data-theme="dark"] .weather-metric{background:rgba(255,255,255,.05)}
.weather-metric span{display:block;color:var(--text-3);font-size:.84rem;margin-bottom:6px}
.weather-metric strong{font-size:1rem}
.weather-meta{margin:0;color:var(--text-3);font-size:.9rem}

.content-grid{display:grid;grid-template-columns:minmax(0,1fr) var(--side-width);gap:24px;margin-top:24px}
.content-grid.no-sidebar{grid-template-columns:1fr}
.main-column{min-width:0}
.side-column{display:grid;gap:18px;align-self:start;position:sticky;top:14px;min-width:0;}
.sidebar-card{padding:18px}
.sidebar-list{margin:0;padding-left:18px;color:var(--text-2)}
.sidebar-list li+li{margin-top:8px}
.sidebar-chip-row .chip{font-size:.92rem;padding:8px 12px}

.post-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.post-card{overflow:hidden}
.post-card-link{display:block;height:100%}
.post-card-body{padding:14px 14px 16px}
.post-card h2{margin:6px 0 8px;font-size:1.2rem;line-height:1.18;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.post-card p{margin:0;color:var(--text-2)}
.post-card-foot{display:flex;justify-content:space-between;gap:12px;margin-top:10px;color:var(--text-3);font-size:.88rem}
.post-visual{position:relative;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg, rgba(10,132,255,.16), rgba(94,92,230,.12))}
.post-visual img{width:100%;height:100%;object-fit:cover}
.no-image{position:relative;overflow:hidden}
.orb{position:absolute;border-radius:50%;filter:blur(16px);contain:strict}
.orb-a{width:100px;height:100px;left:8%;top:12%;background:rgba(10,132,255,.25)}
.orb-b{width:130px;height:130px;right:6%;top:20%;background:rgba(94,92,230,.18)}
.orb-c{width:90px;height:90px;left:28%;bottom:12%;background:rgba(48,209,88,.12)}

/* 横条模式 */
.post-list{display:grid;gap:14px}
.post-list-item{overflow:hidden}
.post-list-link{display:flex;gap:18px;padding:16px;height:100%}
.post-list-cover{width:180px;height:120px;border-radius:14px;overflow:hidden;flex-shrink:0;background:linear-gradient(135deg, rgba(10,132,255,.16), rgba(94,92,230,.12))}
.post-list-cover img{width:100%;height:100%;object-fit:cover}
.post-list-body{flex:1;min-width:0;display:flex;flex-direction:column;justify-content:center;gap:8px}
.post-list-body h2{margin:0;font-size:1.15rem;line-height:1.3;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.post-list-body .post-desc{margin:0;-webkit-line-clamp:2;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}
.post-list-foot{display:flex;gap:16px;color:var(--text-3);font-size:.85rem}

@media (max-width: 640px){
  .post-list-link{flex-direction:column}
  .post-list-cover{width:100%;height:auto;aspect-ratio:16/9}
}

.pagination-wrap{margin-top:26px}
.pagination-wrap ul{display:flex;flex-wrap:wrap;gap:10px;list-style:none;margin:0;padding:0}
.pagination-wrap li{display:flex;align-items:center;justify-content:center;background:transparent;border:0;box-shadow:none}
.pagination-wrap li a,.pagination-wrap li span{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:42px;height:42px;padding:0 14px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:var(--bg-elevated)
}
.pagination-wrap li.is-current{background:transparent;border-color:transparent;box-shadow:none}
.pagination-wrap li.is-current > a,
.pagination-wrap li.is-current > span,
.pagination-wrap span.is-current,
.pagination-wrap a.is-current{
  background:var(--brand);border-color:transparent;color:#fff;
}

/* 加载更多 */
.load-more-wrap{display:flex;justify-content:center;margin-top:24px}
.load-more-btn{
  padding:12px 36px;border-radius:var(--radius-pill);
  background:var(--bg-elevated);border:1px solid var(--line);
  color:var(--text);font-size:.92rem;font-weight:500;cursor:pointer;
  transition:all .25s ease;position:relative;overflow:hidden
}
.load-more-btn:hover:not(:disabled){
  border-color:var(--brand);color:var(--brand);background:var(--brand-soft)
}
.load-more-btn:disabled{cursor:default;opacity:.55}
.load-more-btn.loading{pointer-events:none}
.load-more-btn.loading::after{
  content:'';display:inline-block;width:16px;height:16px;
  border:2px solid var(--text-3);border-top-color:var(--brand);
  border-radius:50%;animation:spin .6s linear infinite;
  vertical-align:middle;margin-left:8px
}
@keyframes spin{to{transform:rotate(360deg)}}

.single-article{display:grid;gap:24px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:22px;align-items:start}
.article-main{display:grid;gap:22px;min-width:0;max-width:100%}
.article-aside{position:sticky;top:104px;align-self:start}
.article-body{padding:24px;min-width:0;max-width:100%;overflow:hidden}
.entry-content img{cursor:zoom-in;transition:transform .2s ease}
.entry-content img:hover{transform:scale(1.02)}
.img-lightbox{position:fixed;inset:0;z-index:9999;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.88);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease}
.img-lightbox.is-active{opacity:1;visibility:visible}
.img-lightbox-img-wrap{position:relative;display:flex;align-items:center;justify-content:center;width:100%;height:100%}
.img-lightbox img{max-width:90vw;max-height:82vh;object-fit:contain;border-radius:8px;transform:scale(.92);transition:transform .25s ease;user-select:none;-webkit-user-drag:none}
.img-lightbox.is-active img{transform:scale(1)}
.img-lightbox-counter{position:absolute;top:16px;left:50%;transform:translateX(-50%);color:rgba(255,255,255,.7);font-size:.85rem;font-weight:500;pointer-events:none;user-select:none}
.img-lightbox-toolbar{position:absolute;bottom:0;left:0;right:0;display:flex;align-items:center;justify-content:center;gap:6px;padding:20px;background:linear-gradient(transparent,rgba(0,0,0,.6))}
.img-lightbox-btn{width:42px;height:42px;border-radius:50%;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.1);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:1.1rem;transition:background .2s,border-color .2s;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.img-lightbox-btn:hover{background:rgba(255,255,255,.25);border-color:rgba(255,255,255,.4)}
.img-lightbox-btn:disabled{opacity:.3;cursor:default}
.img-lightbox-close{position:absolute;top:16px;right:16px;width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.1);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:1.4rem;transition:background .2s;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.img-lightbox-close:hover{background:rgba(255,255,255,.25)}
.img-lightbox-toolbar .sep{width:1px;height:20px;background:rgba(255,255,255,.2);margin:0 4px}
@media(max-width:640px){
  .img-lightbox-toolbar{padding:14px;gap:5px}
  .img-lightbox-btn{width:38px;height:38px;font-size:1rem}
}
.entry-footer{margin-top:24px;padding-top:18px;border-top:1px solid var(--line)}
.nav-card{padding:18px;min-height:78px;display:flex;align-items:center}
.nav-card .muted{color:var(--text-3)}
.post-nav-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}

.site-header{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:var(--header-height);padding:12px 16px;margin-top:16px;
}
.site-brand{display:flex;align-items:center;gap:0;min-width:0}
.brand-mark{
  width:42px;height:42px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(135deg, var(--brand), rgba(255,255,255,.94));
  color:#fff;font-weight:800;font-size:1.1rem;
}
.logo{height:42px;object-fit:contain}
.logo-dark{display:none}
html[data-theme="dark"] .site-brand.has-dark-logo .logo-light{display:none}
html[data-theme="dark"] .site-brand.has-dark-logo .logo-dark{display:block}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-text strong{font-size:1rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-text small{color:var(--text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.site-nav{display:flex;align-items:center;gap:6px;flex:1;justify-content:center}
.nav-link{padding:10px 14px;border-radius:var(--radius-pill);color:var(--text-2);display:flex;align-items:center;gap:4px}
.nav-link:hover,.nav-link.is-active{background:var(--bg-soft);color:var(--text)}
.nav-arrow{transition:transform .2s}
.nav-has-child:hover .nav-arrow{transform:rotate(180deg)}

/* 导航下拉菜单 */
.nav-dropdown{position:relative}
.nav-dropdown{
  position:relative;z-index:1000
}
.nav-dropdown-menu{
  position:absolute;top:100%;left:50%;transform:translateX(-50%);
  min-width:160px;padding:8px 0;margin-top:4px;
  background:var(--bg-strong);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-float);opacity:0;visibility:hidden;
  transition:all .2s ease;z-index:1000
}
.nav-dropdown:hover .nav-dropdown-menu{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.nav-dropdown-item{
  display:block;padding:8px 16px;color:var(--text-2);font-size:0.9rem;
  white-space:nowrap;transition:all .15s
}
.nav-dropdown-item:hover{background:var(--bg-soft);color:var(--text)}

.header-actions{display:flex;align-items:center;gap:10px}
.search-mini input{
  width:180px;height:42px;padding:0 14px;border-radius:var(--radius-pill);
  background:var(--bg-soft);border:1px solid var(--line);outline:none
}
.icon-btn,.floating-backtop{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--line);
  padding:0;background:var(--bg-soft);display:grid;place-items:center;
  appearance:none;-webkit-appearance:none
}
.icon-wrap{display:inline-flex;align-items:center;justify-content:center;line-height:0}
.theme-toggle-icon{position:relative;width:20px;height:20px}
.theme-icon{position:absolute;inset:0;display:inline-flex;align-items:center;justify-content:center}
.theme-icon-sun{display:none}
html[data-theme="dark"] .theme-icon-sun{display:inline-flex}
html[data-theme="dark"] .theme-icon-moon{display:none}
.icon-wrap svg,.floating-backtop svg,.social-link svg{display:block;width:20px;height:20px;flex:none}
.mobile-only{display:none}

.category-strip{margin-top:18px}
.category-strip,.comments-section,.not-found-card{padding:22px}
.friend-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.friend-card{display:flex;align-items:center;gap:16px;padding:18px}
.friend-avatar{width:56px;height:56px;border-radius:18px;overflow:hidden;background:var(--bg-soft);display:grid;place-items:center;font-weight:800}
.friend-avatar img{width:100%;height:100%;object-fit:cover}
.friend-meta p{margin:6px 0 0;color:var(--text-2)}
.footer-main,.footer-meta{display:flex;align-items:center;justify-content:space-between;gap:14px}
.site-footer{padding:20px 22px;margin-bottom:30px}
.footer-main p{margin:.5rem 0 0;color:var(--text-2)}
.footer-meta{margin-top:18px;padding-top:14px;border-top:1px solid var(--line);flex-wrap:wrap;color:var(--text-3);font-size:.9rem}
.footer-social{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}
.social-link{display:inline-flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-pill);background:var(--bg-soft);border:1px solid var(--line)}

.floating-backtop{position:fixed;right:24px;bottom:24px;box-shadow:var(--shadow-float);opacity:0;transform:translateY(16px);pointer-events:none;transition:.25s ease;z-index:30}
.floating-backtop.is-visible{opacity:1;transform:none;pointer-events:auto}
.mtop-xl{margin-top:28px}
.comment-empty,.empty-state{color:var(--text-2)}
.empty-state{padding:28px}

@media (max-width: 900px){
  .content-grid,.article-layout{grid-template-columns:1fr}
  .side-column,.article-aside{position:static;display:none}
}
@media (min-width: 901px){
  .content-grid.no-sidebar .post-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .content-grid.no-sidebar .post-list{grid-template-columns:1fr}
}
@media (max-width: 900px){
  .content-grid,.article-layout{grid-template-columns:1fr}
  .side-column,.article-aside{position:static}
  .hero-home,.hero-archive,.not-found-shell{grid-template-columns:1fr}
  .post-grid,.friend-grid,.post-nav-grid{grid-template-columns:1fr}
  .site-header{flex-wrap:wrap;align-items:center;row-gap:0;transition:row-gap .38s cubic-bezier(.22, 1, .36, 1)}
  .site-header.has-open-nav{row-gap:14px}
  .site-brand{order:1;flex:1;min-width:0}
  .header-actions{order:2;flex-shrink:0}
  .site-nav{
    order:3;flex:0 0 100%;width:100%;
    padding:0 14px;max-height:0;opacity:0;overflow:hidden;
    border:1px solid transparent;border-radius:var(--radius-lg);
    background:transparent;box-shadow:none;transform:translateY(-12px);
    flex-direction:column;align-items:stretch;justify-content:flex-start;
    pointer-events:none;
    transition:max-height .38s cubic-bezier(.22, 1, .36, 1), opacity .24s ease, transform .38s cubic-bezier(.22, 1, .36, 1), padding .38s cubic-bezier(.22, 1, .36, 1), border-color .24s ease, background-color .24s ease, box-shadow .24s ease
  }
  .site-nav.is-open{
    padding:14px;max-height:70vh;opacity:1;transform:translateY(0);
    border-color:var(--line);background:var(--bg-strong);box-shadow:var(--shadow-float);
    pointer-events:auto
  }
  .site-nav .nav-link{display:block;width:100%;text-align:left}
  .nav-arrow{margin-left:auto}
  
  /* 移动端下拉菜单 */
  .nav-dropdown{width:100%}
  .nav-dropdown-menu{
    position:static;transform:none;opacity:1;visibility:visible;
    box-shadow:none;border:none;background:var(--bg-soft);
    margin-top:8px;border-radius:var(--radius-md);max-height:0;overflow:hidden;
    transition:max-height .3s ease
  }
  .nav-dropdown.is-open .nav-dropdown-menu{max-height:300px}
  .nav-dropdown-item{padding:10px 16px 10px 28px}
  
  .mobile-only{display:grid}
  .search-mini{display:none}
}
@media (max-width: 640px){
  .site-frame,.site-header-wrap,.site-footer-wrap{width:min(calc(100% - 20px), var(--content-max))}
  .hero-home,.hero-archive,.article-body,.site-footer,.category-strip,.comments-section,.not-found{padding:18px}
  .hero-copy h1{font-size:clamp(1.7rem, 10vw, 3rem)}
  .brand-text small{display:none}
  .weather-main{grid-template-columns:1fr}
  .weather-visual{justify-self:start;width:76px;height:76px;border-radius:24px;font-size:1.3rem}
}