/* 小吕工坊 · 站点样式 v3（照班级站的设计语言：玻璃岛 / 大字宋体 / 立体卡片 / 光斑 / 可换色调） */
:root{
  /* 基础色 */
  --bg-a:#f7fbff; --bg-b:#e7effb; --bg-c:#f6f9fe;
  --ink:#152238; --ink-2:#47586f; --ink-3:#8c9aae;
  --line:rgba(21,34,56,.1); --line-2:rgba(21,34,56,.2);
  --glass:rgba(255,255,255,.7); --glass-2:rgba(255,255,255,.5);
  --shadow:0 18px 46px -30px rgba(24,44,84,.4);
  --shadow-hi:0 28px 60px -34px rgba(24,44,84,.5);
  /* 主色调（可在页面左下角调色盘里改，也可自定义） */
  --accent:#2f62e8; --accent-2:#5b86f5; --accent-soft:rgba(47,98,232,.09); --accent-ink:#22459e;
  --good:#1f8a5b;
  --font-serif:"Songti SC","STSong","SimSun","Noto Serif SC",serif;
  --font-sans:"PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  --ease:cubic-bezier(.2,.75,.28,1);
}
html[data-theme="dark"]{
  --bg-a:#080e17; --bg-b:#0c1421; --bg-c:#0a111b;
  --ink:#e8eff9; --ink-2:#a9b8cd; --ink-3:#74869d;
  --line:rgba(190,214,255,.11); --line-2:rgba(190,214,255,.24);
  --glass:rgba(19,29,45,.66); --glass-2:rgba(255,255,255,.05);
  --shadow:0 20px 50px -34px rgba(0,0,0,.9);
  --shadow-hi:0 30px 70px -40px rgba(0,0,0,.95);
  --accent:#6b93ff; --accent-2:#8dacff; --accent-soft:rgba(107,147,255,.14); --accent-ink:#b4c9ff;
  --good:#63d3a0;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;min-height:100vh;color:var(--ink);font-family:var(--font-sans);overflow-x:hidden;
  background:linear-gradient(176deg,var(--bg-a) 0%,var(--bg-b) 48%,var(--bg-c) 100%);
  -webkit-font-smoothing:antialiased;
}
/* 网格 + 三团漂浮光斑 */
.amb{position:fixed;inset:0;pointer-events:none;z-index:0;overflow:hidden}
.amb::before{
  content:"";position:absolute;inset:-10%;
  background-image:linear-gradient(to right,var(--line) 1px,transparent 1px),linear-gradient(to bottom,var(--line) 1px,transparent 1px);
  background-size:84px 84px;opacity:.55;
  -webkit-mask-image:radial-gradient(circle at 50% 12%,#000 0%,rgba(0,0,0,.4) 55%,transparent 92%);
  mask-image:radial-gradient(circle at 50% 12%,#000 0%,rgba(0,0,0,.4) 55%,transparent 92%);
}
.amb i{position:absolute;display:block;border-radius:50%;filter:blur(46px);opacity:.55}
.amb .b1{width:44vw;height:44vw;left:-8vw;top:-12vw;background:color-mix(in srgb,var(--accent) 26%,transparent);animation:driftA 26s ease-in-out infinite}
.amb .b2{width:38vw;height:38vw;right:-6vw;top:2vw;background:rgba(130,205,235,.28);animation:driftB 32s ease-in-out infinite}
.amb .b3{width:52vw;height:42vw;left:26vw;top:34vh;background:color-mix(in srgb,var(--accent-2) 14%,transparent);animation:driftC 38s ease-in-out infinite}
@keyframes driftA{0%,100%{transform:translate3d(0,0,0) scale(1)}50%{transform:translate3d(6vw,4vh,0) scale(1.08)}}
@keyframes driftB{0%,100%{transform:translate3d(0,0,0) scale(1)}50%{transform:translate3d(-5vw,6vh,0) scale(1.1)}}
@keyframes driftC{0%,100%{transform:translate3d(0,0,0) scale(1)}50%{transform:translate3d(4vw,-5vh,0) scale(.94)}}
.wrap{max-width:1120px;margin:0 auto;padding:0 28px;position:relative;z-index:1}
::selection{background:var(--accent-soft)}

/* 玻璃岛 */
.island{background:var(--glass);border:1px solid var(--line);border-radius:999px;box-shadow:var(--shadow);
  -webkit-backdrop-filter:blur(22px) saturate(170%);backdrop-filter:blur(22px) saturate(170%);
  transition:border-color .35s var(--ease),box-shadow .35s var(--ease),background .35s var(--ease)}
.island:hover{border-color:var(--line-2)}

/* 顶栏 */
.hdr{position:sticky;top:0;z-index:70;padding:16px 0 0}
.hdr-in{max-width:1120px;margin:0 auto;padding:0 28px;display:flex;align-items:center;gap:12px}
.brand{display:flex;align-items:center;gap:11px;padding:8px 18px 8px 11px;text-decoration:none;color:inherit;border-radius:999px}
.mark{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line-2);flex:0 0 auto;
  background:var(--accent-soft);transition:transform .5s var(--ease)}
.brand:hover .mark{transform:rotate(-12deg)}
.mark svg{width:15px;height:15px;stroke:var(--accent);stroke-width:1.5;fill:none}
.brand .bt{display:flex;flex-direction:column;line-height:1.15}
.brand .bt b{font:400 14px/1.2 var(--font-serif);letter-spacing:.18em}
.brand .bt i{font:400 8px/1 var(--font-mono);font-style:normal;letter-spacing:.24em;color:var(--ink-3);margin-top:4px}
.nav{display:flex;align-items:center;gap:2px;padding:5px;margin:0 auto}
.nav a{display:flex;align-items:center;height:34px;padding:0 17px;border-radius:999px;text-decoration:none;
  font:500 13px/1 var(--font-sans);color:var(--ink-2);letter-spacing:.05em;white-space:nowrap;
  transition:background .3s var(--ease),color .25s ease,transform .3s var(--ease)}
.nav a:hover{color:var(--ink);background:var(--glass-2);transform:translateY(-1px)}
.nav a.on{background:var(--accent);color:#fff;box-shadow:0 8px 20px -12px var(--accent)}
html[data-theme="dark"] .nav a.on{color:#0a111b}
.tools{display:flex;align-items:center;padding:5px;gap:1px}
.tools button{width:34px;height:34px;display:grid;place-items:center;border:0;border-radius:999px;background:transparent;color:var(--ink-2);cursor:pointer;
  transition:background .28s var(--ease),transform .28s var(--ease),color .25s ease}
.tools button:hover{background:var(--glass-2);color:var(--ink);transform:translateY(-1px)}
.tools svg{width:16px;height:16px;stroke:currentColor;stroke-width:1.6;fill:none}

/* 顶部主视觉 */
.hero{text-align:center;padding:clamp(44px,9vh,96px) 0 0;position:relative}
.hero .eb{font:400 10px/1 var(--font-mono);letter-spacing:.32em;color:var(--ink-3);text-transform:uppercase;
  opacity:0;animation:eyebrowIn .9s var(--ease) .1s forwards}
.hero h1{margin:20px 0 0;font:400 clamp(46px,7.4vw,92px)/1.06 var(--font-serif);letter-spacing:.14em}
.hero h1 span{display:inline-block;opacity:0;transform:translateY(18px);animation:charIn 1.1s var(--ease) forwards}
@keyframes charIn{to{opacity:1;transform:none}}
@keyframes eyebrowIn{to{opacity:1}}
.vcap{position:absolute;right:6px;top:clamp(56px,10vh,110px);writing-mode:vertical-rl;letter-spacing:.28em;
  font:400 11px/1.9 var(--font-serif);color:var(--ink-3);opacity:0;animation:eyebrowIn 1s var(--ease) .5s forwards}
.vcap::before{content:"";display:block;width:1px;height:56px;margin:0 auto 12px;background:var(--line-2)}
.hero .lede{margin:22px auto 0;max-width:520px;font-size:13.5px;line-height:2.05;color:var(--ink-2)}
.hero .lede b{font-weight:600;color:var(--accent-ink)}
.hero .rule{width:0;height:1px;background:var(--line-2);margin:26px auto 0;animation:ruleGrow 1.2s var(--ease) .5s forwards}
@keyframes ruleGrow{to{width:120px}}
.stats{display:flex;justify-content:center;gap:clamp(26px,5vw,64px);margin-top:26px}
.stats .st{opacity:0;animation:statLand .9s var(--ease) forwards}
.stats .st:nth-child(1){animation-delay:.55s}.stats .st:nth-child(2){animation-delay:.68s}.stats .st:nth-child(3){animation-delay:.81s}
.stats .v{font:400 clamp(26px,3.2vw,36px)/1 var(--font-serif);letter-spacing:.06em}
.stats .k{margin-top:9px;font:400 9px/1 var(--font-mono);letter-spacing:.2em;color:var(--ink-3);text-transform:uppercase}
@keyframes statLand{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

/* 按钮（带墨迹填充 hover） */
.acts{display:flex;justify-content:center;gap:10px;margin-top:30px;flex-wrap:wrap}
.btn{position:relative;display:inline-flex;align-items:center;gap:9px;height:42px;padding:0 22px;border-radius:999px;overflow:hidden;
  border:1px solid var(--line-2);background:var(--glass);color:var(--ink);text-decoration:none;cursor:pointer;
  font:500 12.5px/1 var(--font-sans);letter-spacing:.06em;
  transition:color .35s var(--ease),border-color .35s var(--ease),transform .35s var(--ease),box-shadow .35s var(--ease)}
.btn svg{width:14px;height:14px;stroke:currentColor;stroke-width:1.7;fill:none}
.btn::before{content:"";position:absolute;inset:0;background:var(--accent);transform:translateY(101%);transition:transform .42s var(--ease);z-index:-1}
.btn:hover{color:#fff;border-color:transparent;transform:translateY(-2px);box-shadow:0 16px 30px -18px var(--accent)}
.btn:hover::before{transform:translateY(0)}
html[data-theme="dark"] .btn:hover{color:#0a111b}
.btn.solid{background:var(--accent);color:#fff;border-color:transparent;box-shadow:0 14px 30px -18px var(--accent)}
html[data-theme="dark"] .btn.solid{color:#0a111b}
.btn.solid:hover{color:#fff}

/* 栏目卡片 */
.sec{margin-top:clamp(46px,8vh,86px)}
.sec-h{display:flex;align-items:flex-end;gap:14px;margin-bottom:18px}
.sec-h .i{font:400 9.5px/1 var(--font-mono);letter-spacing:.24em;color:var(--accent);text-transform:uppercase;padding-bottom:5px}
.sec-h h2{margin:0;font:400 clamp(19px,2.1vw,23px)/1.2 var(--font-serif);letter-spacing:.1em}
.sec-h .n{margin-left:auto;font:400 9.5px/1 var(--font-mono);letter-spacing:.16em;color:var(--ink-3);text-transform:uppercase;padding-bottom:4px}
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.card{position:relative;display:block;padding:24px 22px 22px;border-radius:16px;text-decoration:none;color:inherit;
  background:var(--glass);border:1px solid var(--line);box-shadow:var(--shadow);overflow:hidden;
  transform-style:preserve-3d;will-change:transform;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s var(--ease),background .4s var(--ease)}
.card::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity .45s var(--ease);
  background:radial-gradient(340px circle at var(--mx,50%) var(--my,50%),color-mix(in srgb,var(--accent) 16%,transparent),transparent 62%)}
.card:hover::after{opacity:1}
.card:hover{box-shadow:var(--shadow-hi);border-color:var(--line-2)}
.card .no{font:400 9px/1 var(--font-mono);letter-spacing:.2em;color:var(--ink-3)}
.card .ti{margin-top:14px;font:400 clamp(20px,2.2vw,25px)/1.3 var(--font-serif);letter-spacing:.08em}
.card .en{margin-top:8px;font:400 8.5px/1 var(--font-mono);letter-spacing:.22em;color:var(--ink-3);text-transform:uppercase}
.card .de{margin-top:12px;font-size:12px;line-height:1.95;color:var(--ink-2)}
.card .ft{display:flex;align-items:center;gap:8px;margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
  font:400 9.5px/1 var(--font-mono);letter-spacing:.14em;color:var(--ink-3)}
.card .ft .dot{width:5px;height:5px;border-radius:50%;background:var(--good)}
.card .go{margin-left:auto;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line-2);
  transition:background .35s var(--ease),border-color .35s var(--ease),transform .35s var(--ease)}
.card .go svg{width:12px;height:12px;stroke:var(--ink);stroke-width:1.8;fill:none}
.card:hover .go{background:var(--accent);border-color:transparent;transform:translateX(3px)}
.card:hover .go svg{stroke:#fff}

/* 游戏大卡 */
.gcards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.gcard{position:relative;display:flex;flex-direction:column;min-height:290px;padding:26px 24px;border-radius:18px;overflow:hidden;
  text-decoration:none;color:inherit;background:var(--glass);border:1px solid var(--line);box-shadow:var(--shadow);
  transform-style:preserve-3d;will-change:transform;
  transition:transform .45s var(--ease),box-shadow .45s var(--ease),border-color .45s var(--ease)}
.gcard::before{content:"";position:absolute;inset:-30% -10%;background:
  radial-gradient(60% 55% at 78% 8%,color-mix(in srgb,var(--accent) 20%,transparent),transparent 70%),
  radial-gradient(45% 40% at 8% 92%,rgba(132,204,235,.2),transparent 72%);
  opacity:.9;transition:transform .6s var(--ease)}
.gcard:hover::before{transform:scale(1.06)}
.gcard::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity .45s var(--ease);
  background:radial-gradient(420px circle at var(--mx,50%) var(--my,50%),rgba(255,255,255,.5),transparent 60%)}
html[data-theme="dark"] .gcard::after{background:radial-gradient(420px circle at var(--mx,50%) var(--my,50%),rgba(255,255,255,.14),transparent 60%)}
.gcard:hover::after{opacity:1}
.gcard:hover{box-shadow:var(--shadow-hi);border-color:var(--line-2)}
.gcard .tag{position:relative;display:inline-flex;align-items:center;gap:7px;align-self:flex-start;
  font:500 9px/1 var(--font-mono);letter-spacing:.16em;text-transform:uppercase;color:var(--accent-ink);
  padding:6px 10px;border-radius:999px;background:var(--accent-soft);border:1px solid var(--line)}
.gcard .nm{position:relative;margin-top:auto;font:400 clamp(26px,3.4vw,38px)/1.2 var(--font-serif);letter-spacing:.1em}
.gcard .nm em{display:block;font:400 9px/1 var(--font-mono);font-style:normal;letter-spacing:.26em;color:var(--ink-3);margin-top:10px;text-transform:uppercase}
.gcard .ds{position:relative;margin:14px 0 0;font-size:12.5px;line-height:1.95;color:var(--ink-2);max-width:44ch}
.gcard .ft{position:relative;display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:16px;border-top:1px solid var(--line)}
.gcard .likes{display:inline-flex;align-items:center;gap:6px;font:400 10px/1 var(--font-mono);letter-spacing:.1em;color:var(--ink-3)}
.gcard .likes svg{width:13px;height:13px;stroke:currentColor;stroke-width:1.6;fill:none}
.gcard .enter{margin-left:auto;display:inline-flex;align-items:center;gap:9px;font:400 10px/1 var(--font-mono);letter-spacing:.16em;color:var(--accent-ink)}
.gcard .enter .cir{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line-2);transition:background .35s var(--ease),transform .35s var(--ease),border-color .35s var(--ease)}
.gcard .enter .cir svg{width:13px;height:13px;stroke:var(--ink);stroke-width:1.8;fill:none}
.gcard:hover .enter .cir{background:var(--accent);border-color:transparent;transform:translateX(4px)}
.gcard:hover .enter .cir svg{stroke:#fff}

/* 滚动揭示 */
.section-fade{opacity:0;transform:translateY(18px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.section-fade.in{opacity:1;transform:none}

/* 页脚 */
.foot{margin-top:clamp(56px,9vh,100px);border-top:1px solid var(--line);padding:26px 0 46px}
.foot-in{max-width:1120px;margin:0 auto;padding:0 28px;display:flex;align-items:flex-end;gap:20px;flex-wrap:wrap}
.foot-in .l b{font:400 15px/1.3 var(--font-serif);letter-spacing:.16em}
.foot-in .l p{margin:8px 0 0;font:400 8.5px/1.7 var(--font-mono);letter-spacing:.18em;color:var(--ink-3);text-transform:uppercase}
.foot-in .r{margin-left:auto;display:flex;gap:18px;font:400 9px/1.7 var(--font-mono);letter-spacing:.14em;color:var(--ink-3);text-transform:uppercase}
.foot-in .r a{color:inherit;text-decoration:none;transition:color .25s}
.foot-in .r a:hover{color:var(--accent)}

/* 左下角色调坞 */
.dock{position:fixed;left:20px;bottom:20px;z-index:80;display:flex;align-items:center;gap:8px;
  padding:6px;border-radius:999px;background:var(--glass);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);box-shadow:var(--shadow)}
.dock button{width:30px;height:30px;border:0;border-radius:50%;background:transparent;cursor:pointer;display:grid;place-items:center;color:var(--ink-2);
  transition:background .25s var(--ease),transform .25s var(--ease)}
.dock button:hover{background:var(--glass-2);transform:translateY(-1px)}
.dock svg{width:15px;height:15px;stroke:currentColor;stroke-width:1.6;fill:none}
.dock .cur{width:14px;height:14px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 1px var(--line-2) inset,0 0 14px -4px var(--accent)}
.palette{position:fixed;left:20px;bottom:66px;z-index:80;width:252px;padding:16px;border-radius:16px;
  background:var(--glass);border:1px solid var(--line);-webkit-backdrop-filter:blur(22px);backdrop-filter:blur(22px);box-shadow:var(--shadow-hi);
  opacity:0;transform:translateY(8px) scale(.98);pointer-events:none;transition:opacity .3s var(--ease),transform .3s var(--ease)}
.palette.open{opacity:1;transform:none;pointer-events:auto}
.palette .lb{font:400 9px/1 var(--font-mono);letter-spacing:.2em;color:var(--ink-3);text-transform:uppercase}
.sw{display:flex;gap:9px;margin-top:12px}
.sw button{width:32px;height:32px;border-radius:9px;border:1px solid var(--line-2);cursor:pointer;transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.sw button:hover{transform:translateY(-2px);box-shadow:0 8px 18px -12px rgba(0,0,0,.6)}
.sw button.on{box-shadow:0 0 0 2px var(--ink) inset}
.palette .row{display:flex;align-items:center;gap:10px;margin-top:14px}
.palette input[type="color"]{width:32px;height:32px;padding:0;border:1px solid var(--line-2);border-radius:9px;background:none;cursor:pointer}
.palette .hint{margin-top:12px;font:400 9px/1.7 var(--font-mono);letter-spacing:.08em;color:var(--ink-3)}

/* 抽屉（评论） */
.sheet-mask{position:fixed;inset:0;z-index:90;background:rgba(8,14,24,.32);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);
  opacity:0;pointer-events:none;transition:opacity .35s var(--ease)}
.sheet-mask.open{opacity:1;pointer-events:auto}
.sheet{position:fixed;right:0;top:0;bottom:0;z-index:91;width:min(420px,92vw);display:flex;flex-direction:column;
  background:var(--glass);border-left:1px solid var(--line);-webkit-backdrop-filter:blur(26px) saturate(150%);backdrop-filter:blur(26px) saturate(150%);
  box-shadow:var(--shadow-hi);transform:translateX(102%);transition:transform .42s var(--ease)}
.sheet.open{transform:none}
.sheet .sh{display:flex;align-items:center;gap:10px;padding:18px 20px;border-bottom:1px solid var(--line)}
.sheet .sh b{font:400 15px/1.2 var(--font-serif);letter-spacing:.14em}
.sheet .sh .c{margin-left:auto;font:400 9px/1 var(--font-mono);letter-spacing:.14em;color:var(--ink-3)}
.sheet .sh button{width:28px;height:28px;border:0;border-radius:50%;background:transparent;cursor:pointer;color:var(--ink-2);display:grid;place-items:center}
.sheet .sh button:hover{background:var(--glass-2)}
.sheet .body{flex:1;overflow-y:auto;padding:16px 20px}
.sheet .empty{text-align:center;font-size:12px;line-height:2;color:var(--ink-3);padding:40px 4px}
.sheet .form{padding:14px 20px 18px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:9px}
.sheet .form input,.sheet .form textarea{width:100%;font:400 12.5px/1.7 var(--font-sans);color:var(--ink);background:var(--glass-2);
  border:1px solid var(--line);border-radius:10px;padding:10px 12px;outline:none;transition:border-color .25s}
.sheet .form input:focus,.sheet .form textarea:focus{border-color:var(--accent)}
.sheet .form textarea{resize:vertical;min-height:64px}
.sheet .form .bar{display:flex;align-items:center;gap:10px}
.sheet .form .tip{font:400 8.5px/1.6 var(--font-mono);letter-spacing:.1em;color:var(--ink-3)}
.sheet .form button{margin-left:auto;height:34px;padding:0 18px}
.cmt{padding:13px 0;border-bottom:1px dashed var(--line)}
.cmt .h{display:flex;align-items:center;gap:8px;font:400 10px/1 var(--font-mono);letter-spacing:.1em;color:var(--ink-3)}
.cmt .h b{color:var(--ink);font:500 12px/1 var(--font-sans);letter-spacing:.02em}
.cmt .h .x{margin-left:auto;cursor:pointer;opacity:.5;transition:opacity .25s}
.cmt .h .x:hover{opacity:1;color:#d4547a}
.cmt p{margin:9px 0 0;font-size:12.5px;line-height:1.9;color:var(--ink-2);white-space:pre-wrap}

/* 点赞（心形，可爆开） */
.like{display:inline-flex;align-items:center;gap:7px;height:34px;padding:0 13px;border-radius:999px;cursor:pointer;
  border:1px solid var(--line);background:var(--glass-2);color:var(--ink-2);
  font:500 11px/1 var(--font-mono);letter-spacing:.1em;transition:all .3s var(--ease)}
.like:hover{border-color:var(--line-2);transform:translateY(-1px)}
.like.on{color:#fff;background:var(--accent);border-color:transparent;box-shadow:0 10px 24px -16px var(--accent)}
html[data-theme="dark"] .like.on{color:#0a111b}
.like svg{width:14px;height:14px;stroke:currentColor;stroke-width:1.6;fill:none;transition:transform .3s var(--ease)}
.like.on svg{fill:currentColor;transform:scale(1.08)}
.like.pop svg{animation:tapRing .45s var(--ease)}
@keyframes tapRing{0%{transform:scale(1)}45%{transform:scale(1.34)}100%{transform:scale(1.08)}}

/* 提示条 */
.toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%,14px);z-index:95;padding:11px 18px;border-radius:999px;
  background:var(--glass);border:1px solid var(--line);box-shadow:var(--shadow-hi);font-size:12px;color:var(--ink);
  opacity:0;pointer-events:none;transition:opacity .3s var(--ease),transform .3s var(--ease)}
.toast.on{opacity:1;transform:translate(-50%,0)}

/* 游戏外壳 */
.play{position:fixed;inset:0;display:flex;flex-direction:column;background:#05080d}
.play .top{position:relative;z-index:3;display:flex;align-items:center;gap:10px;padding:12px 16px;background:rgba(9,14,22,.82);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-bottom:1px solid rgba(190,214,255,.12)}
.play .top .back{display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 15px;border-radius:999px;cursor:pointer;
  border:1px solid rgba(190,214,255,.22);background:rgba(255,255,255,.06);color:#e8eff9;text-decoration:none;
  font:500 11.5px/1 var(--font-mono);letter-spacing:.12em;transition:background .28s,border-color .28s,transform .28s}
.play .top .back:hover{background:rgba(255,255,255,.14);transform:translateX(-2px)}
.play .top .nm{font:400 17px/1 var(--font-serif);letter-spacing:.14em;color:#f2f6ff}
.play .top .nm em{font:400 8px/1 var(--font-mono);font-style:normal;letter-spacing:.24em;color:rgba(200,220,255,.6);margin-left:10px}
.play .top .sp{margin-left:auto;display:flex;align-items:center;gap:8px}
.play .top .like{background:rgba(255,255,255,.06);border-color:rgba(190,214,255,.22);color:#dce7f7}
.play .top .like.on{background:var(--accent);color:#fff;border-color:transparent}
.play .top button.ic{width:36px;height:36px;border-radius:50%;border:1px solid rgba(190,214,255,.22);background:rgba(255,255,255,.06);
  color:#dce7f7;cursor:pointer;display:grid;place-items:center;transition:background .28s,transform .28s}
.play .top button.ic:hover{background:rgba(255,255,255,.14);transform:translateY(-1px)}
.play .top .ic svg{width:15px;height:15px;stroke:currentColor;stroke-width:1.7;fill:none}
.play .stage{position:relative;flex:1;min-height:0}
.play iframe{position:absolute;inset:0;width:100%;height:100%;border:0;background:#05080d}

/* 响应式 */
@media(max-width:900px){
  .cards,.gcards{grid-template-columns:1fr}
  .hdr-in{flex-wrap:wrap;justify-content:center}
  .brand{margin:0}
  .nav{order:3;width:100%;justify-content:center;margin:0}
  .tools{order:2}
  .vcap{display:none}
}
@media(max-width:560px){
  .stats{gap:22px}
  .lede{font-size:12.5px}
  .hero h1{font-size:clamp(38px,10vw,56px)}
}
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001s!important;transition-duration:.001s!important}
  /* 入场动画被关掉时，直接给终态，避免元素停在 opacity:0 */
  .hero .eb,.hero h1 span,.vcap,.stats .st{opacity:1!important;transform:none!important}
  .hero .rule{width:120px!important}
  .section-fade{opacity:1!important;transform:none!important}
}