:root{--bg:#111314;--panel:#191c1e;--line:#303436;--text:#f1f0eb;--muted:#a0a6a5;--orange:#ffb078;font-family:Inter,"Microsoft YaHei",system-ui,sans-serif;color:var(--text);background:var(--bg);color-scheme:dark}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}button,input{font:inherit}a:focus-visible,button:focus-visible{outline:2px solid var(--orange);outline-offset:5px}header{max-width:1440px;margin:auto;display:flex;align-items:center;padding:27px 48px;gap:38px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;font-size:19px;font-weight:700;white-space:nowrap}.brand small{display:block;color:var(--muted);font-size:10px;letter-spacing:2px;margin-top:5px;font-weight:400}.logo{font-size:28px;background:var(--orange);color:#191611;border-radius:10px;padding:3px 9px;letter-spacing:-2px}.logo span{font-size:22px}nav{display:flex;gap:24px;margin-left:auto}nav a{font-size:13px;color:#bfc3c0}nav a:hover,.tabs a:hover{color:var(--orange)}.nav-search{font-size:13px;white-space:nowrap}main{max-width:1320px;padding:0 36px;margin:auto}.preview{font-size:11px;padding:11px 0;color:#a99e89;letter-spacing:1px}.hero{display:grid;grid-template-columns:1.4fr 1fr;align-items:center;min-height:445px;gap:50px}.eyebrow{font-size:10px;letter-spacing:1.8px;color:var(--muted);display:block}.dot{display:inline-block;width:6px;height:6px;background:var(--orange);border-radius:50%;margin-right:8px}h1{font-size:50px;line-height:1.35;letter-spacing:-2px;margin:24px 0}h1 span{color:var(--orange)}.hero p{color:var(--muted);font-size:14px;line-height:2}.button{display:inline-flex;align-items:center;padding:13px 20px;background:var(--orange);color:#282019;border-radius:5px;font-size:13px;font-weight:600;margin-top:13px}.hero-art{height:340px;position:relative;display:flex;align-items:center;justify-content:center;overflow:hidden;background:radial-gradient(ellipse,#343026 0%,transparent 67%)}.hero-art b{font-size:143px;letter-spacing:-12px;font-weight:600;z-index:1}.hero-art b span{color:var(--orange);font-size:100px}.orbit{position:absolute;border:1px solid #766044;border-radius:50%;width:360px;height:170px;transform:rotate(-32deg)}.orbit.two{transform:rotate(50deg);border-color:#484a40;width:300px;height:220px}.orb-label{position:absolute;top:15px;right:4px;font-size:9px;letter-spacing:3px;color:#9f998b}.hero-art small{position:absolute;bottom:12px;right:5px;letter-spacing:4px;font-size:10px;color:#a29d8e}.ad{background:#202423;border:1px solid #373e39;border-radius:8px;padding:25px;position:relative;overflow:hidden}.ad strong{display:block;font-size:18px;line-height:1.6;margin:14px 0 8px}.ad p{font-size:12px;color:var(--muted)}.ad a{color:var(--orange);font-size:12px}.ad img{width:100%;max-height:160px;object-fit:contain;margin-top:10px}.ad.top{margin:12px 0 36px;padding:22px 28px;background:linear-gradient(110deg,#242c29,#1e2421)}.ad.top strong{margin:9px 0 0;font-size:20px}.ad.top p{margin-bottom:0}.ad.top a{position:absolute;right:30px;top:53px}.search{display:flex;border:1px solid var(--line);border-radius:7px;background:#191c1d;padding:6px;max-width:100%;margin:24px 0 32px}.search input{background:none;border:0;color:var(--text);padding:11px 16px;flex:1;min-width:0;font-size:13px;outline:none}.search button{background:#303633;color:#ddd;border:0;border-radius:4px;padding:0 22px;cursor:pointer}.section-title{display:flex;align-items:center;justify-content:space-between;margin:24px 0}.section-title h2{font-size:21px;white-space:nowrap}.section-title small{color:var(--muted);font-size:11px;font-weight:400;margin-left:13px}.tabs{display:flex;gap:18px;font-size:12px;color:#a9afab}.tabs .active{color:var(--orange)}.content-grid,.reading-grid{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:28px}.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;align-content:start}.card{background:var(--panel);border:1px solid var(--line);border-radius:9px;overflow:hidden;transition:transform .2s}.card:hover{transform:translateY(-3px);border-color:#746149}.card-art{height:156px;position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:center;padding:25px;background:#343f3b;color:#d0ddd3}.card-art:after{content:'';width:180px;height:180px;border:1px solid currentColor;border-radius:50%;position:absolute;right:-25px;top:5px;opacity:.18;box-shadow:0 0 0 24px #ffffff08,0 0 0 48px #ffffff05}.card-art span{font-size:10px;letter-spacing:2px;margin-bottom:13px}.card-art b{font-size:32px;letter-spacing:-1px;font-weight:500}.card-art i{position:absolute;right:22px;bottom:20px;font-size:23px;font-style:normal}.card:nth-child(2n) .card-art{background:#39352e;color:#e4ceab}.art-news{background:#2c3844}.card-copy{padding:22px}.card h3{font-size:19px;line-height:1.6;margin:14px 0 10px}.card p{font-size:12px;line-height:1.9;color:var(--muted);min-height:46px}.card-foot{border-top:1px solid var(--line);padding-top:17px;margin-top:20px;font-size:10px;color:#89938f;display:flex;gap:12px;justify-content:space-between}.card-foot span{color:#d6b997;white-space:nowrap}.sidebar{display:flex;flex-direction:column;gap:22px}.note{border:1px solid var(--line);border-radius:8px;padding:26px;background:#1a1e1d}.note h3{font-size:23px;font-weight:500;line-height:1.6;margin:20px 0 14px}.note p{color:var(--muted);font-size:12px;line-height:1.9}.note a{display:inline-block;margin-top:12px;font-size:12px;color:var(--orange)}.quiet{background:transparent}.quiet h3{font-size:17px;margin-top:0}footer{max-width:1248px;margin:80px auto 0;border-top:1px solid var(--line);padding:35px 0 45px;display:flex;justify-content:space-between;color:#8a938e;font-size:11px;line-height:2}footer .brand{display:block;color:#d5dad5}footer a{margin-right:20px}.page-heading{padding:45px 0 10px}.page-heading h1{font-size:40px;margin:14px 0}.page-heading p{color:var(--muted);font-size:14px}.empty{grid-column:1/-1;border:1px dashed var(--line);padding:40px;border-radius:8px;min-height:270px}.empty p{font-size:13px;color:var(--muted)}.empty a{color:var(--orange);font-size:13px}.breadcrumbs{margin:35px 0;color:var(--muted);font-size:12px}.reading{max-width:820px}.reading h1{font-size:37px;letter-spacing:-1px;line-height:1.5;margin-top:18px}.lead{font-size:17px;color:#aeb7b1;line-height:1.8}.meta{font-size:11px;color:#849189;padding:20px 0;border-bottom:1px solid var(--line)}.prose{font-size:15px;line-height:2;color:#c8d0ca}.prose h2{font-size:22px;color:#edece4;margin:36px 0 15px}.prose p{margin:14px 0}.prose .listline{margin:5px 0}.prose pre{white-space:pre-wrap;overflow-wrap:anywhere;padding:25px;border:1px solid #363f37;background:#1b211d;border-radius:8px;font-size:13px;line-height:1.9}.source,.resource{margin:35px 0;padding:24px;background:#1b211e;border-radius:8px;border:1px solid var(--line);font-size:13px;line-height:1.9;overflow-wrap:anywhere}.source a{color:var(--orange)}.resource small{color:var(--muted)}.resource .button{margin:0}::selection{background:#694f32;color:white}@media(min-width:1400px){.hero{min-height:470px}}@media(max-width:1100px){header{padding:22px;gap:20px}nav{gap:14px}.nav-search{display:none}.content-grid,.reading-grid{grid-template-columns:1fr 230px}.tabs{gap:12px}footer{margin-left:36px;margin-right:36px}h1{font-size:42px}}@media(max-width:800px){header{flex-wrap:wrap}nav{width:100%;overflow:auto;margin:0;padding-top:5px;padding-bottom:4px;white-space:nowrap;gap:23px}main{padding:0 20px}.hero{grid-template-columns:1fr;gap:0;min-height:0;padding:30px 0}.hero-art{display:none}.hero h1{font-size:38px}.content-grid,.reading-grid{grid-template-columns:1fr}.sidebar{display:none}.section-title{display:block}.tabs{overflow:auto;white-space:nowrap;padding:12px 0}.ad.top a{position:static;display:block;margin-top:16px}.ad.top strong{font-size:17px}.cards{gap:14px}.card h3{font-size:16px}.card-copy{padding:16px}.card-art{height:130px;padding:18px}.card-art b{font-size:27px}.card-foot{display:none}footer{margin:50px 20px 0;display:block}.reading h1{font-size:29px}.page-heading h1{font-size:32px}}@media(max-width:470px){.cards{grid-template-columns:1fr}.card-art{height:150px}.card h3{font-size:19px}.hero h1{font-size:35px}.eyebrow{letter-spacing:1px}}

/* ---- 配图 ---- */
figure.article-img{margin:1.2rem 0;}
figure.article-img img{width:100%;border-radius:14px;display:block;box-shadow:0 4px 18px rgba(0,0,0,.08);}
/* ---- 步骤式教程 ---- */
.step{display:flex;gap:.9rem;margin:1.1rem 0;padding:1rem 1.1rem;background:rgba(99,102,241,.05);border-radius:14px;}
.step-no{flex:none;width:2.1rem;height:2.1rem;border-radius:50%;background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;font-weight:700;display:flex;align-items:center;justify-content:center;font-size:1rem;}
.step-body h2{margin-top:0;font-size:1.15rem;}
/* ---- 大下载按钮 ---- */
.btn-dl{display:inline-block;padding:.9rem 1.6rem;background:linear-gradient(135deg,#10b981,#059669);color:#fff!important;border-radius:12px;font-weight:700;font-size:1.02rem;text-decoration:none;box-shadow:0 4px 14px rgba(16,185,129,.35);}
.btn-dl:hover{filter:brightness(1.06);}
/* ---- 首页板块横幅 ---- */
.section-banner{max-width:1200px;margin:1.4rem auto .6rem;border-radius:16px;overflow:hidden;box-shadow:0 4px 18px rgba(0,0,0,.08);}
.section-banner img{width:100%;display:block;max-height:260px;object-fit:cover;}
/* ---- 卡片图片缩略 ---- */
.card-art.card-img{padding:0;}
.card-art.card-img img{width:100%;height:150px;object-fit:cover;display:block;}

/* ================= 首页 v2 美化（2026-09-24） ================= */
/* 柔和光晕背景，让深色页面更有层次 */
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
background:
 radial-gradient(900px 500px at 12% -8%,rgba(255,176,120,.16),transparent 62%),
 radial-gradient(760px 460px at 88% 4%,rgba(99,102,241,.15),transparent 60%),
 radial-gradient(700px 420px at 60% 100%,rgba(16,185,129,.10),transparent 65%);}
header,main,footer{position:relative;z-index:1}
/* 顶部导航：悬浮玻璃条 + 当前项高亮 */
header{position:sticky;top:0;z-index:20;background:rgba(17,19,20,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid rgba(48,52,54,.9)}
nav a{position:relative;padding:3px 0}
nav a::after{content:"";position:absolute;left:0;right:100%;bottom:-6px;height:2px;background:linear-gradient(90deg,var(--orange),#f0a35e);transition:right .25s}
nav a:hover::after{right:0}
.logo{box-shadow:0 6px 18px rgba(255,176,120,.28)}

/* 首屏 */
.hero.v2{gap:44px;padding:26px 0 8px}
.hero.v2 h1{background:linear-gradient(180deg,#fff 25%,#cfd2ce);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}
.button{background:linear-gradient(135deg,#ffb078,#f09553);color:#282019;border-radius:10px;padding:14px 22px;font-weight:700;box-shadow:0 8px 22px rgba(240,149,83,.28);transition:transform .2s,box-shadow .2s}
.button:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(240,149,83,.36)}
.button.ghost{background:transparent;color:var(--text);border:1px solid var(--line);box-shadow:none}
.button.ghost:hover{border-color:var(--orange);color:var(--orange)}
.hero-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin:30px 0 6px;max-width:620px}
.hero-stats b{display:block;font-size:26px;letter-spacing:-1px;background:linear-gradient(135deg,#fff,#ffc99b);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-stats small{color:var(--muted);font-size:11px;letter-spacing:.6px}
.hero-art.v2{background:radial-gradient(ellipse at center,#3a3527 0%,rgba(58,53,39,.25) 45%,transparent 72%);border-radius:24px}
.hero-art.v2 b{filter:drop-shadow(0 14px 32px rgba(255,176,120,.28))}

/* 快捷分类胶囊 */
.chips{display:flex;gap:10px;flex-wrap:wrap;margin:34px 0 4px}
.chips a{font-size:12.5px;padding:9px 15px;border-radius:999px;border:1px solid var(--line);background:rgba(25,28,30,.7);color:#cfd3cf;transition:.2s}
.chips a:hover{border-color:var(--orange);color:var(--orange);transform:translateY(-2px);background:rgba(255,176,120,.08)}

/* 板块标题：竖条 + 计数链接 */
.home-sec{margin-top:10px}
.home-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin:26px 0 18px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.home-head-title{display:flex;align-items:center;gap:12px}
.home-head-title .bar{width:4px;height:30px;border-radius:3px;background:linear-gradient(180deg,var(--orange),#8b5cf6)}
.home-head h2{margin:0;font-size:23px;letter-spacing:-.6px;display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.home-head h2 small{font-size:12px;font-weight:400;color:var(--muted);letter-spacing:.4px}
.home-head .more{font-size:12.5px;color:var(--muted);white-space:nowrap;padding:6px 12px;border:1px solid var(--line);border-radius:999px;transition:.2s}
.home-head .more:hover{color:var(--orange);border-color:var(--orange)}

/* 四列卡片网格（首页板块） */
.cards.grid4{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.cards.grid4 .card-art{height:132px}
.cards.grid4 .card-art.card-img img{height:132px}
.cards.grid4 .card-copy{padding:16px}
.cards.grid4 .card-copy h3{font-size:14.5px;line-height:1.5}
.cards.grid4 .card-copy p{font-size:12px;line-height:1.75}
.cards.grid4 .eyebrow{font-size:9.5px}
.cards.grid4 .card-foot{font-size:11px}

/* 卡片交互升级 */
.card:hover{transform:translateY(-5px);border-color:rgba(255,176,120,.5);box-shadow:0 18px 40px rgba(0,0,0,.45)}
.card-art.card-img img{transition:transform .5s}
.card:hover .card-art.card-img img{transform:scale(1.06)}

/* 下载专区 */
.dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.dl-item{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:18px;display:flex;flex-direction:column;gap:8px;transition:.22s}
.dl-item:hover{transform:translateY(-5px);border-color:rgba(16,185,129,.45);box-shadow:0 18px 40px rgba(0,0,0,.45)}
.dl-top{display:flex;justify-content:space-between;align-items:center}
.dl-tag{font-size:10px;padding:3px 9px;border-radius:999px;background:rgba(255,176,120,.14);color:var(--orange);letter-spacing:.5px}
.dl-size{font-size:11px;color:#7fd4ae;background:rgba(16,185,129,.12);padding:3px 9px;border-radius:999px}
.dl-item h3{margin:2px 0 0;font-size:14.5px;line-height:1.5;font-weight:700}
.dl-item p{margin:0;font-size:11.5px;color:var(--muted);line-height:1.7}
.dl-actions{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:10px;flex-wrap:wrap}
.btn-dl.sm{padding:.55rem 1rem;font-size:.85rem;border-radius:9px;box-shadow:0 4px 12px rgba(16,185,129,.3)}
.dl-more{font-size:11.5px;color:var(--muted)}
.dl-more:hover{color:var(--orange)}

/* 广告位与页脚微调 */
.ad.top{margin:44px 0 0;background:linear-gradient(135deg,#202423,#232a28);border-color:#3a423c}
footer{border-top:1px solid var(--line)}

/* 响应式 */
@media (max-width:1180px){
 .cards.grid4{grid-template-columns:repeat(3,minmax(0,1fr))}
 .dl-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
 .hero.v2{grid-template-columns:1fr;min-height:auto;gap:24px}
 .hero-art.v2{height:220px}
 .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
 h1{font-size:36px}
 .content-grid,.reading-grid{grid-template-columns:1fr}
 .cards.grid4{grid-template-columns:repeat(2,minmax(0,1fr))}
 .dl-grid{grid-template-columns:1fr}
 header{padding:18px 20px;gap:18px;flex-wrap:wrap}
 nav{width:100%;margin-left:0;gap:16px;overflow-x:auto}
 main{padding:0 20px}
}
@media (max-width:560px){
 .cards,.cards.grid4{grid-template-columns:1fr}
 .home-head{flex-direction:column;align-items:flex-start;gap:10px}
}

/* ================= 首页 v3 美化 + 广告 + 互动（2026-09-26） ================= */
/* 入场动画 */
@keyframes rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.hero.v2,.chips,.home-head,.cards.grid4 .card,.dl-grid .dl-item,.section-banner,.quote-strip{animation:rise .5s ease both}
.cards.grid4 .card:nth-child(2),.dl-grid .dl-item:nth-child(2){animation-delay:.06s}
.cards.grid4 .card:nth-child(3),.dl-grid .dl-item:nth-child(3){animation-delay:.12s}
.cards.grid4 .card:nth-child(4),.dl-grid .dl-item:nth-child(4){animation-delay:.18s}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* 今日一句 · 正能量引导条 */
.quote-strip{display:flex;align-items:center;gap:14px;max-width:1320px;margin:20px auto 0;padding:14px 20px;border:1px solid rgba(255,176,120,.28);border-radius:14px;background:linear-gradient(135deg,rgba(255,176,120,.10),rgba(139,92,246,.08));font-size:13.5px;color:#e8e3da}
.quote-strip .q-ico{flex:none;font-size:20px}
.quote-strip b{color:var(--orange)}
.quote-strip a{margin-left:auto;flex:none;font-size:12px;color:var(--muted);white-space:nowrap}
.quote-strip a:hover{color:var(--orange)}

/* 正能量广告横幅 */
.ad-banner{position:relative;display:block;border-radius:18px;overflow:hidden;margin:34px auto 6px;box-shadow:0 10px 30px rgba(0,0,0,.4)}
.ad-banner img{width:100%;height:280px;object-fit:cover;display:block;transition:transform .6s}
.ad-banner:hover img{transform:scale(1.04)}
.ad-banner .ad-mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,10,12,.72) 0%,rgba(10,10,12,.35) 46%,rgba(10,10,12,.05) 75%)}
.ad-banner .ad-copy{position:absolute;left:0;top:0;bottom:0;display:flex;flex-direction:column;justify-content:center;gap:10px;padding:26px 34px;max-width:62%}
.ad-banner .ad-tag{align-self:flex-start;font-size:10.5px;letter-spacing:1.5px;color:#ffb078;background:rgba(20,16,10,.72);border:1px solid rgba(255,176,120,.45);padding:5px 12px;border-radius:999px}
.ad-banner b{font-size:24px;line-height:1.5;letter-spacing:-.5px;color:#fff;text-shadow:0 2px 14px rgba(0,0,0,.5)}
.ad-banner small{font-size:13px;color:#f0e6da;text-shadow:0 1px 8px rgba(0,0,0,.5)}
.ad-banner:hover small{color:#ffcf9e}
.ad-banner .ad-dis{position:absolute;right:12px;bottom:8px;font-size:9.5px;letter-spacing:1px;color:rgba(255,255,255,.55)}

/* 文章页互动栏 */
.interact{margin:26px 0 0;padding:16px 18px;border:1px solid var(--line);border-radius:14px;background:var(--panel)}
.interact-stats{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.interact-stats .iv,.interact-stats .ic{font-size:12.5px;color:var(--muted)}
.interact-stats b{color:var(--text);font-size:14px;margin-right:4px}
.ilike,.ishare{cursor:pointer;font:inherit;font-size:12.5px;padding:7px 16px;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--text);transition:.2s}
.ilike:hover{border-color:rgba(255,176,120,.6);color:var(--orange)}
.ilike.on{background:linear-gradient(135deg,#ffb078,#f09553);color:#282019;border-color:transparent;font-weight:700}
.ishare:hover{border-color:rgba(139,92,246,.6);color:#c4b5fd}
.interact .c-note{margin:10px 0 0;font-size:11px;color:#7d8381}
/* 评论区 */
.comments{margin-top:18px;padding-top:16px;border-top:1px dashed var(--line)}
.comments h3{margin:0 0 12px;font-size:15px;display:flex;align-items:baseline;gap:10px}
.comments h3 small{font-size:11px;color:var(--muted);font-weight:400}
.clist{display:flex;flex-direction:column;gap:10px;margin-bottom:14px}
.c-empty{font-size:12.5px;color:var(--muted);padding:10px 0}
.c-item{background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:10px;padding:10px 14px}
.c-head{display:flex;align-items:center;gap:10px;font-size:12px}
.c-head b{color:var(--orange)}
.c-head small{color:var(--muted)}
.c-del{margin-left:auto;cursor:pointer;font:inherit;font-size:10.5px;background:none;border:none;color:#6f7573;padding:2px 6px;border-radius:6px}
.c-del:hover{color:#ff8f8f;background:rgba(255,120,120,.08)}
.c-item p{margin:6px 0 0;font-size:13px;line-height:1.7}
.cform{display:flex;flex-direction:column;gap:8px}
.cform input,.cform textarea{background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:9px;padding:9px 12px;color:var(--text);font-size:13px;resize:vertical;min-height:64px}
.cform input{min-height:0;width:200px}
.cform input:focus,.cform textarea:focus{outline:none;border-color:rgba(255,176,120,.55)}
.cform .c-send{align-self:flex-start;cursor:pointer;font:inherit;font-size:12.5px;font-weight:700;padding:9px 22px;border-radius:9px;border:none;background:linear-gradient(135deg,#ffb078,#f09553);color:#282019}

/* 卡片阅读量角标 */
.card-foot .c-views{color:#9aa19d;font-weight:400}
.cards.grid4 .card-copy .c-views,.content-grid .card .card-copy .c-views{font-size:11px;color:#9aa19d}
.card-copy>.c-views{display:block;margin-top:8px;font-size:11px;color:#9aa19d}

/* 返回顶部 */
.to-top{position:fixed;right:22px;bottom:26px;z-index:50;width:42px;height:42px;border-radius:50%;border:1px solid rgba(255,176,120,.5);background:rgba(20,22,23,.85);backdrop-filter:blur(8px);color:var(--orange);font-size:17px;cursor:pointer;opacity:0;pointer-events:none;transform:translateY(10px);transition:.25s}
.to-top.show{opacity:1;pointer-events:auto;transform:none}
.to-top:hover{background:var(--orange);color:#282019}

/* 侧栏竖版广告 */
.ad-banner.side{margin:0 0 16px}
.ad-banner.side img{height:190px}
.ad-banner.side .ad-copy{padding:16px 18px;max-width:88%}
.ad-banner.side b{font-size:15px}

@media (max-width:900px){
 .ad-banner img{height:210px}
 .ad-banner b{font-size:18px}
 .ad-banner .ad-copy{max-width:80%;padding:18px 20px}
 .quote-strip{flex-wrap:wrap}
 .quote-strip a{margin-left:0}
}