/* MoonBlog 主题：克制、留白、大标题。颜色全部走变量；主题色与明暗模式在设置里改。 */
:root{
  --bg:#fbfaf7;--bg2:#f2efe8;--surface:#fff;--ink:#14161a;--ink2:#4a4f58;--mut:#8b9099;--line:#e7e3da;
  --accent:#b5532a;--on-accent:#fff;--r:18px;--r-s:12px;
  --shadow:0 1px 2px rgba(20,20,20,.04),0 14px 34px -14px rgba(20,20,20,.16);
  --font:"Inter","SF Pro Display",-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei UI","Microsoft YaHei",sans-serif;
  --serif:"Source Han Serif SC","Noto Serif SC","Songti SC","STSong","Georgia","Times New Roman",serif;
  --head:var(--font);color-scheme:light;
}
:root[data-mode=dark]{--bg:#0d0e11;--bg2:#14161b;--surface:#171a20;--ink:#f3f1ed;--ink2:#b8bcc4;--mut:#7f8691;--line:#262a32;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 18px 40px -16px rgba(0,0,0,.6);color-scheme:dark}
@media(prefers-color-scheme:dark){:root[data-mode=auto]{--bg:#0d0e11;--bg2:#14161b;--surface:#171a20;--ink:#f3f1ed;--ink2:#b8bcc4;--mut:#7f8691;--line:#262a32;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 18px 40px -16px rgba(0,0,0,.6);color-scheme:dark}}
.serif{--head:var(--serif)}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;overflow-x:clip}
body{margin:0;overflow-x:clip;background:var(--bg);color:var(--ink);font:16px/1.7 var(--font);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
::selection{background:color-mix(in srgb,var(--accent) 28%,transparent)}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
h1,h2,h3{font-family:var(--head);letter-spacing:-.02em;line-height:1.15;margin:0}
.wrap{max-width:1200px;margin:0 auto;padding:0 28px}
.meta,.mut{color:var(--mut)}

/* 顶栏 */
.top{position:sticky;top:0;z-index:50;border-bottom:1px solid transparent;transition:background .25s,border-color .25s,backdrop-filter .25s}
.top.scrolled,.nav-open .top{background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:saturate(170%) blur(16px);-webkit-backdrop-filter:saturate(170%) blur(16px);border-color:var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{font-weight:750;font-size:1.25rem;letter-spacing:-.03em;display:inline-flex;align-items:center;gap:10px}
.brand img{height:30px;width:auto}
.top nav{display:flex;gap:6px;align-items:center}
.top nav a{padding:8px 14px;border-radius:999px;color:var(--ink2);font-size:.95rem;transition:color .2s,background .2s}
.top nav a:hover,.top nav a.on{color:var(--ink);background:color-mix(in srgb,var(--ink) 7%,transparent)}
.burger{display:none;width:42px;height:42px;border:0;background:none;color:var(--ink);cursor:pointer;border-radius:12px}
.burger i,.burger i::before,.burger i::after{display:block;width:20px;height:2px;background:currentColor;border-radius:2px;margin:auto;position:relative;transition:.25s}
.burger i::before,.burger i::after{content:"";position:absolute;left:0}.burger i::before{top:-6px}.burger i::after{top:6px}
.nav-open .burger i{background:transparent}.nav-open .burger i::before{top:0;transform:rotate(45deg)}.nav-open .burger i::after{top:0;transform:rotate(-45deg)}

/* 按钮 / 标签 */
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:999px;background:var(--accent);color:var(--on-accent);font-weight:600;font-size:.97rem;border:1px solid var(--accent);transition:transform .2s,box-shadow .2s,background .2s}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 24px -10px var(--accent)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn.ghost:hover{border-color:var(--ink);box-shadow:none}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 36px}
.chips a{padding:7px 16px;border-radius:999px;border:1px solid var(--line);color:var(--ink2);font-size:.9rem;transition:.2s}
.chips a:hover{border-color:var(--ink);color:var(--ink)}
.chips a.on{background:var(--ink);border-color:var(--ink);color:var(--bg)}
.kicker{font-size:.78rem;letter-spacing:.22em;text-transform:uppercase;color:var(--accent);font-weight:700;margin:0 0 18px}

/* 首页首屏 */
.hero{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding-top:72px;padding-bottom:88px}
.hero::before{content:"";position:absolute;top:-72px;left:50%;width:100vw;margin-left:-50vw;height:640px;z-index:-1;pointer-events:none;
  background:radial-gradient(48% 55% at 82% 8%,color-mix(in srgb,var(--accent) 24%,transparent),transparent 70%),radial-gradient(40% 50% at 8% 0%,color-mix(in srgb,var(--accent) 10%,transparent),transparent 70%)}
.hero h1{font-size:clamp(2.6rem,6.2vw,5.2rem);line-height:1.02;letter-spacing:-.045em;font-weight:780}
.lead{font-size:clamp(1.05rem,1.6vw,1.3rem);color:var(--ink2);max-width:34rem;margin:26px 0 0;line-height:1.75}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin:38px 0 0}
.hero-art{position:relative;display:block;border-radius:28px;overflow:hidden;background:var(--bg2);aspect-ratio:4/5;box-shadow:var(--shadow)}
.hero-art img{width:100%;height:100%;object-fit:cover;transition:transform .9s cubic-bezier(.2,.7,.2,1)}
.hero-art:hover img{transform:scale(1.05)}
.hero-art span{position:absolute;left:18px;bottom:18px;padding:9px 16px;border-radius:999px;background:color-mix(in srgb,var(--bg) 80%,transparent);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);font-size:.9rem;font-weight:600}
.hero.solo{grid-template-columns:1fr;text-align:center;padding-top:110px}.hero.solo .lead{margin-left:auto;margin-right:auto}.hero.solo .actions{justify-content:center}

/* 亮点条 */
.feats{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:0;border-block:1px solid var(--line);margin-bottom:96px}
.feats div{padding:34px 28px 34px 0}.feats div+div{padding-left:28px;border-left:1px solid var(--line)}
.feats b{display:block;font-size:.78rem;letter-spacing:.16em;color:var(--accent);margin-bottom:12px}
.feats h3{font-size:1.12rem;margin-bottom:6px;letter-spacing:-.01em}.feats p{margin:0;color:var(--ink2);font-size:.93rem}

/* 区块标题 */
.sec{margin-bottom:104px}
.sec-h{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px}
.sec-h h2{font-size:clamp(1.8rem,3.4vw,2.6rem);font-weight:760}
.more{color:var(--ink2);font-size:.95rem;white-space:nowrap;transition:color .2s}.more:hover{color:var(--accent)}
.page-head{padding:64px 0 36px}.page-head h1{font-size:clamp(2.2rem,5vw,3.6rem);font-weight:780;letter-spacing:-.04em;display:flex;align-items:baseline;gap:16px;flex-wrap:wrap}
.badge{font-size:.95rem;font-weight:600;color:var(--mut);letter-spacing:0;font-family:var(--font)}

/* 产品卡片 */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:30px 24px}
.card{display:block}
.card .ph{position:relative;border-radius:var(--r);overflow:hidden;background:var(--bg2);aspect-ratio:4/5;box-shadow:0 0 0 1px var(--line) inset;transition:box-shadow .35s,transform .35s}
.card .ph img{width:100%;height:100%;object-fit:cover;transition:transform .8s cubic-bezier(.2,.7,.2,1)}
.card:hover .ph{transform:translateY(-5px);box-shadow:var(--shadow)}.card:hover .ph img{transform:scale(1.06)}
.card .ph.noimg{display:grid;place-items:center;color:var(--accent);opacity:.55;font-size:3rem;font-weight:700;background:linear-gradient(135deg,var(--bg2),var(--bg))}
.card h3{font-size:1.04rem;font-weight:650;letter-spacing:-.01em;margin:16px 0 4px;line-height:1.35}
.card .meta{margin:0;font-size:.86rem}.card .price{margin:8px 0 0;font-weight:700;color:var(--accent)}

/* 文章卡片 */
.posts{display:grid;grid-template-columns:repeat(auto-fill,minmax(310px,1fr));gap:40px 30px}
.pcard{display:flex;flex-direction:column}
.pcard .pc{border-radius:var(--r);overflow:hidden;aspect-ratio:16/10;background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 22%,var(--bg2)),var(--bg2));box-shadow:0 0 0 1px var(--line) inset;display:grid;place-items:center;font:700 3rem var(--head);color:color-mix(in srgb,var(--accent) 55%,transparent);transition:transform .35s,box-shadow .35s}
.pcard .pc img{width:100%;height:100%;object-fit:cover;transition:transform .8s cubic-bezier(.2,.7,.2,1)}
.pcard:hover .pc{transform:translateY(-4px);box-shadow:var(--shadow)}.pcard:hover .pc img{transform:scale(1.05)}
.pcard .meta{font-size:.82rem;margin:18px 0 8px;letter-spacing:.02em}.pcard .meta b{color:var(--accent);font-weight:650}
.pcard h3{font-size:1.28rem;font-weight:700;line-height:1.35;letter-spacing:-.015em}
.pcard p.ex{margin:10px 0 0;color:var(--ink2);font-size:.95rem;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.pcard.big{grid-column:1/-1;flex-direction:row;gap:44px;align-items:center}
.pcard.big .pc{flex:1.25;aspect-ratio:16/10}.pcard.big .tx{flex:1}.pcard.big h3{font-size:clamp(1.7rem,3vw,2.4rem);letter-spacing:-.03em}
.pcard.big p.ex{font-size:1.05rem;-webkit-line-clamp:4}

/* 产品详情 */
.crumbs{font-size:.85rem;color:var(--mut);padding:28px 0 8px}.crumbs a:hover{color:var(--accent)}.crumbs span{color:var(--ink2)}
.product{display:grid;grid-template-columns:1.15fr .85fr;gap:64px;padding:24px 0 72px;align-items:start}
.gallery .stage{border-radius:var(--r);overflow:hidden;background:var(--bg2);box-shadow:0 0 0 1px var(--line) inset}
.gallery .stage img{width:100%;height:auto;aspect-ratio:1/1;object-fit:contain;mix-blend-mode:normal}
.thumbs{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}
.thumbs a{width:76px;height:76px;border-radius:12px;overflow:hidden;background:var(--bg2);box-shadow:0 0 0 1px var(--line) inset;opacity:.6;transition:.2s}
.thumbs a img{width:100%;height:100%;object-fit:cover}.thumbs a:hover,.thumbs a.on{opacity:1;box-shadow:0 0 0 2px var(--accent)}
.info{position:sticky;top:96px}
.info .cat{display:inline-block;font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);font-weight:700;margin-bottom:14px}
.info h1{font-size:clamp(1.9rem,3.4vw,2.8rem);font-weight:760;letter-spacing:-.035em}
.price.big{font-size:1.9rem;font-weight:760;color:var(--accent);margin:18px 0 6px}
.specs{width:100%;border-collapse:collapse;margin:26px 0}
.specs caption{text-align:left;font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:var(--mut);font-weight:700;padding-bottom:10px}
.specs th,.specs td{padding:13px 0;border-top:1px solid var(--line);text-align:left;font-weight:400;font-size:.95rem}
.specs th{color:var(--mut);width:34%}.specs tr:last-child th,.specs tr:last-child td{border-bottom:1px solid var(--line)}
.specs a{color:var(--accent)}
.detail{max-width:760px;margin:0}.detail-sec{margin-top:72px;margin-bottom:88px}

/* 文章页 */
.article{max-width:760px;margin:0 auto;padding:40px 0 96px}
.article .cat{display:inline-block;padding:5px 14px;border-radius:999px;background:color-mix(in srgb,var(--accent) 13%,transparent);color:var(--accent);font-size:.82rem;font-weight:650;margin-bottom:22px}
.article h1{font-size:clamp(2.1rem,4.8vw,3.4rem);font-weight:780;letter-spacing:-.04em;line-height:1.12}
.article .meta{margin:22px 0 0;font-size:.92rem}
.article .cover{width:min(1100px,calc(100vw - 56px));max-width:none;margin:44px 50% 0;transform:translateX(-50%);border-radius:var(--r);aspect-ratio:16/9;object-fit:cover}
.article .prose{margin-top:44px}.article .cover+.prose{margin-top:36px}
.prose{font-size:1.08rem;line-height:1.95;color:var(--ink)}
.prose>*:first-child{margin-top:0}
.prose p{margin:1.25em 0}
.prose h2{font-size:1.7rem;margin:2.3em 0 .6em;font-weight:740}.prose h3{font-size:1.3rem;margin:2em 0 .5em;font-weight:700}.prose h4,.prose h5{margin:1.6em 0 .4em}
.prose a{color:var(--accent);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.prose img{border-radius:var(--r-s);margin:2em auto}
.prose blockquote{margin:2em 0;padding:.3em 0 .3em 24px;border-left:3px solid var(--accent);color:var(--ink2);font-size:1.12rem}
.prose ul,.prose ol{padding-left:1.4em}.prose li{margin:.45em 0}.prose li::marker{color:var(--accent)}
.prose hr{border:0;border-top:1px solid var(--line);margin:3em 0}
.prose table{width:100%;border-collapse:collapse;margin:2em 0;font-size:.97rem;display:block;overflow-x:auto}
.prose th,.prose td{border:1px solid var(--line);padding:10px 14px;text-align:left}.prose th{background:var(--bg2)}
.prose pre,.prose code{font-family:ui-monospace,Consolas,monospace;font-size:.9em}.prose code{background:var(--bg2);padding:2px 6px;border-radius:6px}
.prose pre{background:var(--bg2);padding:18px 20px;border-radius:var(--r-s);overflow:auto}.prose pre code{background:none;padding:0}
.progress{position:fixed;left:0;right:0;top:0;height:3px;z-index:60;pointer-events:none}
.progress i{display:block;height:100%;background:var(--accent);transform:scaleX(0);transform-origin:0 50%;transition:transform .08s linear}
.postnav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:64px;padding-top:28px;border-top:1px solid var(--line)}
.pn{display:flex;flex-direction:column;gap:6px;padding:16px 18px;border-radius:var(--r-s);box-shadow:0 0 0 1px var(--line) inset;transition:box-shadow .25s,transform .25s}
.pn:hover{box-shadow:0 0 0 1px var(--accent) inset;transform:translateY(-2px)}
.pn small{color:var(--ink3,var(--ink2));font-size:.8rem}.pn span{font-weight:650;line-height:1.4}.pn.next{text-align:right}
.back{display:inline-block;margin-top:56px;color:var(--ink2)}.back:hover{color:var(--accent)}

/* 分页 */
.pager{display:flex;gap:6px;justify-content:center;align-items:center;margin:64px 0 24px;flex-wrap:wrap}
.pager a,.pager strong,.pager span{min-width:42px;height:42px;padding:0 14px;display:inline-flex;align-items:center;justify-content:center;border-radius:999px;font-size:.95rem}
.pager a{border:1px solid var(--line);color:var(--ink2);transition:.2s}.pager a:hover{border-color:var(--ink);color:var(--ink)}
.pager strong{background:var(--ink);color:var(--bg)}.pager span{color:var(--mut)}

/* 联系 / 行动区 / 页脚 */
.band{margin:0 0 96px;border-radius:32px;padding:clamp(40px,7vw,84px);background:var(--ink);color:var(--bg);position:relative;overflow:hidden}
.band::after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(closest-side,color-mix(in srgb,var(--accent) 55%,transparent),transparent)}
.band h2{font-size:clamp(1.9rem,4vw,3rem);max-width:18ch;position:relative;z-index:1}.band p{position:relative;z-index:1;margin:18px 0 30px;color:color-mix(in srgb,var(--bg) 70%,transparent);max-width:34rem}
.band .btn{position:relative;z-index:1}
main{padding-bottom:clamp(56px,9vw,120px)}
.foot{border-top:1px solid var(--line);background:var(--bg2);padding:64px 0 36px;font-size:.93rem;color:var(--ink2)}
.foot .cols{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;margin-bottom:48px}
.foot h4{margin:0 0 14px;font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:var(--mut)}
.foot .fb{font:750 1.3rem var(--font);letter-spacing:-.03em;color:var(--ink);margin:0 0 10px}.foot p{margin:0 0 8px}
.foot a:hover{color:var(--accent)}.foot ul{list-style:none;margin:0;padding:0}.foot li{margin:8px 0}
.foot .copy{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:26px;border-top:1px solid var(--line);color:var(--mut);font-size:.85rem}
.center{text-align:center;padding:140px 0 160px}.center h1{font-size:clamp(4rem,14vw,9rem);letter-spacing:-.06em;color:var(--accent)}

/* 进场动画（只有 JS 可用时才隐藏，爬虫和无 JS 都能看到全部内容） */
.js .rv{opacity:0;transform:translateY(22px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
.js .rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.js .rv{opacity:1;transform:none;transition:none}*{scroll-behavior:auto!important}}

@media(max-width:900px){
  .hero{grid-template-columns:1fr;gap:40px;padding-top:36px;padding-bottom:64px}.hero-art{aspect-ratio:16/11}
  .product{grid-template-columns:1fr;gap:32px}.info{position:static}
  .pcard.big{flex-direction:column;gap:20px}.foot .cols{grid-template-columns:1fr 1fr}.foot .cols>:first-child{grid-column:1/-1}
  .feats div+div{border-left:0;padding-left:0;border-top:1px solid var(--line)}.feats div{padding:22px 0}
}
@media(max-width:760px){
  .wrap{padding-left:20px;padding-right:20px}.hero.solo{padding-top:64px}.burger{display:block}
  .top nav{display:none;position:absolute;left:0;right:0;top:72px;flex-direction:column;align-items:stretch;padding:12px 20px 20px;background:var(--bg);border-bottom:1px solid var(--line)}
  .nav-open .top nav{display:flex}.top nav a{padding:14px 16px;font-size:1.05rem}
  .grid{grid-template-columns:repeat(2,1fr);gap:24px 14px}.sec{margin-bottom:72px}.sec-h{align-items:flex-start;flex-direction:column;gap:8px}
  .article{padding-top:16px}.postnav{grid-template-columns:1fr}.pn.next{text-align:left}
}