/* 课鉴 · 样式
   版式：宣纸底 + 大留白，内容区 1120 宽；楷体做标题，正文无衬线；
   朱红只用在印章、选中态和小标记，墨绿做按钮与强调，水彩晕染只在头图和预览图里出现。 */
:root{
  --paper:#F6F1E6;      /* 米白 主色 */
  --paper-2:#EEE6D4;    /* 深一层纸色 */
  --card:#FBF8F1;       /* 卡片底 */
  --ink:#2B2A26;        /* 正文墨色 */
  --ink-2:#67625A;      /* 次要文字 */
  --ink-3:#9C968A;      /* 弱提示 */
  --green:#2F5D50;      /* 墨绿 辅色 */
  --green-2:#3E7465;
  --green-soft:#E2EAE3;
  --red:#C8442F;        /* 朱红 点缀 */
  --red-soft:#F6E3DC;
  --line:#E4DAC5;
  --shadow:0 1px 2px rgba(90,70,30,.05),0 8px 24px -12px rgba(90,70,30,.18);
  --kai:"KJ Kai","LXGW WenKai","霞鹜文楷","STKaiti","Kaiti SC",serif;
  --serif:"KJ Serif","Noto Serif SC","Source Han Serif SC","思源宋体","Songti SC",serif;
  --sans:"Noto Sans SC","Source Han Sans SC","思源黑体","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --radius:12px;
  color-scheme:light;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.75 var(--sans);-webkit-font-smoothing:antialiased;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .42 0 0 0 0 .35 0 0 0 0 .22 0 0 0 .06 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:25;background:var(--paper)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--green);outline-offset:2px;border-radius:4px}
[hidden]{display:none!important}
.wrap{max-width:1120px;margin:0 auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
@media (max-width:520px){.wrap{padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}}
h1,h2,h3{margin:0;color:var(--ink);text-wrap:balance}
h1,h2,.cat h3{font-synthesis:none}
h1{font-family:var(--serif);font-weight:600;font-size:clamp(26px,4.6vw,38px);line-height:1.35;letter-spacing:.04em}
h2{font-family:var(--serif);font-weight:600;font-size:21px;letter-spacing:.08em}
h3{font-size:16px;line-height:1.5;font-weight:600}
.muted{color:var(--ink-2)}
.small{font-size:13px}

/* ---------- 顶栏 ---------- */
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:rgba(246,241,230,.88);backdrop-filter:saturate(1.2) blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid rgba(228,218,197,.8)}
.top .wrap{display:flex;align-items:center;gap:24px;height:66px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand img{width:38px;height:38px;border-radius:9px;box-shadow:0 2px 6px rgba(200,68,47,.25)}
.brand b{font-family:var(--kai);font-size:26px;letter-spacing:.14em;font-weight:400}
.brand span{font-family:var(--kai);font-size:13px;color:var(--ink-3);letter-spacing:.3em}
.nav{display:flex;gap:2px}
.nav a{position:relative;padding:8px 14px;color:var(--ink-2);font-size:15px}
.nav a:hover{color:var(--ink)}
.nav a.on{color:var(--ink);font-weight:600}
.nav a.on::after{content:"";position:absolute;left:50%;bottom:0;width:16px;height:2px;margin-left:-8px;background:var(--red);border-radius:2px}
.top-search{margin-left:auto;display:flex;align-items:center;background:rgba(255,255,255,.55);border:1px solid var(--line);border-radius:20px;padding:0 4px 0 16px;height:38px;width:250px;transition:border-color .2s,background .2s}
.top-search:focus-within{border-color:var(--green);background:#fff}
.top-search input{border:0;background:none;outline:0;flex:1;min-width:0;font-size:14px}
.top-search button{border:0;background:none;cursor:pointer;color:var(--ink-2);padding:6px 8px;display:grid}
.top-user{flex-shrink:0;font-size:14px;color:#F6F1E6;background:var(--green);border-radius:20px;padding:7px 18px}
.top-user:hover{background:var(--green-2)}
.top-user.in{background:none;color:var(--ink);border:1px solid var(--line);padding:6px 16px}

.tabbar{display:none}
@media (max-width:820px){
  .nav,.top-search,.brand span{display:none}
  .top .wrap{height:58px}
  .top-user{margin-left:auto;padding:6px 16px}
  .tabbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:30;background:rgba(251,248,241,.94);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-top:1px solid var(--line);
    padding:7px max(8px,env(safe-area-inset-right,0px)) calc(7px + env(safe-area-inset-bottom,0px)) max(8px,env(safe-area-inset-left,0px))}
  .tabbar a{flex:1;text-align:center;font-size:11px;color:var(--ink-3);display:flex;flex-direction:column;align-items:center;gap:2px}
  .tabbar a svg{width:23px;height:23px}
  .tabbar a.on{color:var(--green);font-weight:600}
  body{padding-bottom:calc(66px + env(safe-area-inset-bottom,0px))}
}

/* ---------- 首页头图 ---------- */
.hero{position:relative;overflow:hidden;padding-block:64px 92px}
.hero .wash{position:absolute;inset:0;pointer-events:none}
.hero .wash i{position:absolute;border-radius:50%;filter:blur(40px)}
.hero .wash i:nth-child(1){width:46vw;max-width:560px;height:360px;right:-6%;top:-90px;background:rgba(127,163,143,.42)}
.hero .wash i:nth-child(2){width:300px;height:220px;right:22%;top:30px;background:rgba(217,160,122,.22)}
.hero .wash i:nth-child(3){width:360px;height:240px;left:-120px;bottom:-60px;background:rgba(201,185,138,.3)}
.hero .hills{position:absolute;left:0;right:0;bottom:0;width:100%;height:150px;pointer-events:none}
.hero .wrap{position:relative;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:40px;align-items:center}
.hero .eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--kai);color:var(--green);letter-spacing:.35em;font-size:15px}
.hero .eyebrow::before{content:"";width:28px;height:1px;background:var(--green)}
.hero h1{margin-top:14px;font-size:clamp(28px,4.8vw,44px);letter-spacing:.06em}
.hero h1 em{font-style:normal;color:var(--green);position:relative}
.hero h1 em::after{content:"";position:absolute;left:-2%;right:-2%;bottom:.08em;height:.32em;background:rgba(200,68,47,.14);z-index:-1;border-radius:2px}
.hero p{max-width:32em;color:var(--ink-2);margin:16px 0 0;font-size:16px}
.hero-search{margin-top:28px;display:flex;max-width:540px;background:#FFFDF8;border:1px solid var(--line);border-radius:30px;padding:6px;box-shadow:var(--shadow)}
.hero-search:focus-within{border-color:var(--green)}
.hero-search input{flex:1;min-width:0;border:0;background:none;outline:0;padding:8px 18px;font-size:15px}
.hero-search button{border:0;background:var(--green);color:#F6F1E6;border-radius:24px;padding:9px 26px;cursor:pointer;letter-spacing:.2em;font-size:15px}
.hero-search button:hover{background:var(--green-2)}
.hero .facts{display:flex;flex-wrap:wrap;gap:6px 22px;margin-top:20px;font-size:13px;color:var(--ink-2)}
.hero .facts b{font-family:var(--serif);font-weight:600;font-size:20px;color:var(--ink);margin-right:4px;font-variant-numeric:tabular-nums}
.hero .stamp{display:flex;gap:18px;align-items:flex-start}
.hero .stamp .seal-big{width:148px;height:148px;border-radius:26px;box-shadow:0 18px 40px -16px rgba(140,60,30,.45);transform:rotate(-5deg)}
.hero .stamp .vert{writing-mode:vertical-rl;font-family:var(--kai);font-size:22px;letter-spacing:.5em;color:var(--ink-2);margin-top:8px}
@media (max-width:820px){.hero{padding-block:36px 70px}.hero .wrap{grid-template-columns:1fr}.hero .stamp{display:none}.hero .hills{height:90px}}

/* ---------- 分区 ---------- */
.sec{padding-block:30px}
.sec-head{display:flex;align-items:baseline;gap:14px;margin-bottom:20px}
.sec-head h2{display:flex;align-items:center;gap:12px}
.sec-head h2::before{content:"";width:9px;height:9px;background:var(--red);border-radius:2px;transform:rotate(45deg);flex-shrink:0}
.sec-head .more{margin-left:auto;font-size:14px;color:var(--green)}
.sec-head .more:hover{text-decoration:underline;text-underline-offset:4px}
.sec-head .sub{font-size:13px;color:var(--ink-3)}

/* 品类入口 */
.cats{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px}
@media (max-width:1000px){.cats{grid-template-columns:repeat(6,minmax(0,1fr))}.cats .cat{grid-column:span 3}.cats .cat.soon{grid-column:span 2;min-height:0;padding:14px 12px}.cat.soon p{display:none}.cat.soon h3{font-size:16px}.cat.soon .glyph{width:36px;height:36px;font-size:19px}.cats .badge-soon{position:static;order:3;font-size:11px}}
@media (max-width:520px){.cats{gap:10px}}
.cat{position:relative;border-radius:var(--radius);padding:20px 18px 18px;display:flex;flex-direction:column;gap:6px;min-height:170px;overflow:hidden;
  background:linear-gradient(160deg,#FCFAF4 0%,#F7F1E4 100%);border:1px solid var(--line);box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}
.cat::after{content:"";position:absolute;right:-40px;top:-40px;width:140px;height:140px;border-radius:50%;background:radial-gradient(closest-side,rgba(127,163,143,.35),transparent);pointer-events:none}
.cat.c-banhui::after{background:radial-gradient(closest-side,rgba(217,160,122,.4),transparent)}
.cat:not(.soon):hover{transform:translateY(-3px);box-shadow:0 14px 30px -16px rgba(90,70,30,.35)}
.cat .glyph{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;font-family:var(--kai);font-size:25px;font-weight:400;color:#F6F1E6;background:var(--green);margin-bottom:6px;position:relative;z-index:1}
.cat.c-banhui .glyph{background:var(--red)}
.cat h3{font-family:var(--serif);font-size:19px;letter-spacing:.08em;font-weight:600}
.cat p{margin:0;font-size:13px;color:var(--ink-2);line-height:1.65}
.cat .subs{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:10px;position:relative;z-index:1}
.cat .subs a,.cat .subs span{font-size:12px;padding:2px 10px;border-radius:12px;background:var(--green-soft);color:var(--green)}
.cat .subs a:hover{background:var(--green);color:#F6F1E6}
.cat .subs span{background:transparent;border:1px dashed var(--line);color:var(--ink-3)}
.cat.soon{background:transparent;box-shadow:none;border-style:dashed}
.cat.soon::after{display:none}
.cat.soon .glyph{background:transparent;border:1px solid var(--line);color:var(--ink-3)}
.cat.soon h3{color:var(--ink-2)}
.cat.soon p{color:var(--ink-3)}
.badge-soon{position:absolute;top:16px;right:14px;font-size:11px;color:var(--ink-3);letter-spacing:.1em}

/* ---------- 资料卡 ---------- */
.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
@media (max-width:1000px){.grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (max-width:760px){.grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}}
.card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;min-width:0;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-3px);box-shadow:0 16px 32px -18px rgba(90,70,30,.4)}
.thumb{position:relative;aspect-ratio:16/10;background:var(--paper-2);overflow:hidden;max-width:100%;border-bottom:1px solid var(--line)}
.thumb.r34{aspect-ratio:3/4}
.thumb>img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.card:hover .thumb>img,.card:hover .ph>img{transform:scale(1.03)}
.flag{position:absolute;left:10px;bottom:10px;font-family:var(--kai);z-index:2;font-size:13px;padding:1px 10px;border-radius:4px;letter-spacing:.1em;background:var(--red);color:#F6F1E6}
.flag.free{background:var(--green)}
.card .body{padding:13px 15px 14px;display:flex;flex-direction:column;gap:6px;flex:1}
.card .eyebrow{font-size:12px;color:var(--green);letter-spacing:.04em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card h3{font-size:15.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:3em}
.meta{display:flex;flex-wrap:wrap;gap:6px}
.tag{font-size:12px;color:var(--ink-2);background:var(--paper-2);border-radius:4px;padding:0 8px;line-height:21px}
a.tag:hover{color:var(--green)}
.tag.g{background:var(--green-soft);color:var(--green)}
.card .foot{margin-top:auto;padding-top:8px;border-top:1px dashed var(--line);font-size:12px;color:var(--ink-3);display:flex;justify-content:space-between}
@media (max-width:520px){.card .body{padding:10px 11px 11px}.card h3{font-size:14px}.card .meta .tag:nth-child(n+2){display:none}}

/* 本月节点 */
.month{position:relative;overflow:hidden;border-radius:18px;padding:28px;display:grid;grid-template-columns:200px minmax(0,1fr);gap:26px;align-items:center;
  background:linear-gradient(135deg,#2F5D50 0%,#2A5246 60%,#244739 100%);color:#F6F1E6;box-shadow:0 20px 40px -24px rgba(30,60,50,.6)}
.month::before{content:"";position:absolute;right:-80px;top:-100px;width:360px;height:300px;border-radius:50%;background:radial-gradient(closest-side,rgba(246,241,230,.14),transparent)}
.month::after{content:"";position:absolute;left:0;right:0;bottom:0;height:60px;opacity:.18;
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 60' preserveAspectRatio='none'%3E%3Cpath d='M0 40 C150 10 260 30 400 18 S640 36 780 14 S1040 34 1200 20 V60 H0Z' fill='%23F6F1E6'/%3E%3C/svg%3E") center bottom/100% 100% no-repeat}
.month .m-title{font-family:var(--kai);font-size:54px;line-height:1;font-weight:400;letter-spacing:.06em}
.month .m-title small{display:block;font-size:14px;letter-spacing:.4em;margin-top:12px;opacity:.75;font-weight:400}
.nodes{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:12px;position:relative;z-index:1}
.node{background:rgba(246,241,230,.08);border:1px solid rgba(246,241,230,.2);border-radius:12px;padding:14px 16px;transition:background .2s}
.node:hover{background:rgba(246,241,230,.16)}
.node b{display:block;font-family:var(--serif);font-weight:600;font-size:16px;letter-spacing:.06em}
.node span{font-size:12px;opacity:.75}
@media (max-width:760px){.month{grid-template-columns:1fr;padding:22px;gap:16px}.month .m-title{font-size:36px}}

/* ---------- 列表页 ---------- */
.page-head{padding-block:30px 8px}
.crumb{font-size:13px;color:var(--ink-3);margin-bottom:12px}
.crumb a:hover{color:var(--green)}
.filters{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:6px 18px;margin:18px 0 22px;box-shadow:var(--shadow)}
.frow{display:flex;gap:14px;padding:10px 0;border-bottom:1px dashed var(--line);align-items:flex-start}
.frow:last-child{border-bottom:0}
.frow .fname{flex-shrink:0;width:66px;font-size:13px;color:var(--ink-3);padding-top:4px;white-space:nowrap}
.chips{display:flex;flex-wrap:wrap;gap:6px;min-width:0}
.chip{border:1px solid transparent;background:none;border-radius:16px;padding:3px 13px;font-size:14px;cursor:pointer;color:var(--ink);transition:background .15s}
.chip:hover{background:var(--paper-2)}
.chip.on{background:var(--green);color:#F6F1E6}
.chip.on .n{color:rgba(246,241,230,.7)}
.chip.soon{color:var(--ink-3);cursor:not-allowed;border:1px dashed var(--line)}
.chip.soon:hover{background:none}
.chip.soon::after{content:" · 即将上线";font-size:11px}
.chip .n{font-size:11px;color:var(--ink-3);margin-left:4px}
@media (max-width:760px){.filters{padding:4px 14px}.chips{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;margin-right:-14px;padding-right:14px}.chips::-webkit-scrollbar{display:none}.chip{white-space:nowrap}.frow .fname{width:58px}}
.list-bar{display:flex;align-items:center;gap:12px;margin-bottom:16px;font-size:13px;color:var(--ink-2)}
.list-bar select{margin-left:auto;background:var(--card);border:1px solid var(--line);border-radius:8px;padding:5px 10px}
.empty{text-align:center;color:var(--ink-3);padding:70px 0;font-family:var(--kai);font-size:20px}

/* ---------- 详情页 ---------- */
.detail{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);grid-template-areas:"g s" "i s";grid-template-rows:auto 1fr;gap:18px 32px;padding-block:10px 36px;align-items:start}
.detail>.gallery{grid-area:g;min-width:0}
.detail>.side{grid-area:s;min-width:0;position:sticky;top:calc(84px + env(safe-area-inset-top,0px))}
.detail>.intro-box{grid-area:i;min-width:0}
@media (max-width:900px){.detail{grid-template-columns:minmax(0,1fr);grid-template-areas:"g" "s" "i"}.detail>.side{position:static}}
.gallery .main{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--paper-2);aspect-ratio:16/9;max-width:100%;box-shadow:var(--shadow)}
.gallery .main.r34{aspect-ratio:3/4;max-width:480px}
.gallery .main>img{width:100%;height:100%;object-fit:contain}
.gallery .count{position:absolute;right:12px;bottom:12px;font-size:12px;background:rgba(43,42,38,.6);color:#F6F1E6;padding:2px 10px;border-radius:10px;z-index:2}
.wm{position:absolute;inset:0;pointer-events:none;z-index:2;background-image:url("../images/watermark.svg")}
.thumbs{display:flex;gap:10px;margin-top:12px;overflow-x:auto;padding-bottom:4px}
.thumbs button{flex:0 0 104px;border:2px solid transparent;border-radius:8px;padding:0;overflow:hidden;cursor:pointer;background:var(--paper-2);aspect-ratio:16/9;opacity:.7;transition:opacity .2s}
.thumbs.r34 button{flex-basis:72px;aspect-ratio:3/4}
.thumbs button>img{width:100%;height:100%;object-fit:cover}
.thumbs button:hover{opacity:1}
.thumbs button.on{border-color:var(--red);opacity:1}
.side{display:flex;flex-direction:column;gap:16px}
.box{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}
.box h2{font-size:18px;margin-bottom:12px}
.kv{display:grid;grid-template-columns:auto 1fr;gap:8px 18px;font-size:14px;margin:0}
.kv dt{color:var(--ink-3)}
.kv dd{margin:0}
.files{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.files li{display:flex;gap:10px;align-items:center;font-size:14px}
.files li i{font-style:normal;font-size:11px;font-weight:600;width:38px;text-align:center;border-radius:4px;padding:2px 0;background:var(--green-soft);color:var(--green);flex-shrink:0}
.files li i.ppt{background:var(--red-soft);color:var(--red)}
.howuse{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--ink-2)}
.howuse li{display:flex;gap:10px}
.howuse li::before{content:"";flex-shrink:0;width:6px;height:6px;margin-top:9px;border-radius:50%;background:var(--green)}
.dl-box{background:linear-gradient(170deg,#FCFAF4,#F4EDDD)}
.dl-title{font-family:var(--kai);font-size:16px;color:var(--ink-2);display:flex;justify-content:space-between;align-items:center}
.dl{display:flex;flex-direction:column;gap:10px}
.btn{display:inline-flex;justify-content:center;align-items:center;gap:6px;border:1px solid var(--green);background:var(--green);color:#F6F1E6;border-radius:10px;padding:12px 20px;cursor:pointer;font-size:16px;letter-spacing:.08em;text-align:center;transition:background .2s}
.btn:hover{background:var(--green-2)}
.btn.ghost{background:none;color:var(--green)}
.btn.ghost:hover{background:var(--green-soft)}
.btn.off{background:var(--paper-2);border-color:var(--line);color:var(--ink-3);cursor:not-allowed}
.btn.sm{padding:7px 16px;font-size:14px}
.dl .hint{font-size:13px;color:var(--ink-2);text-align:center}
.dl .hint a{color:var(--green);border-bottom:1px solid currentColor}
.fav{background:none;border:0;cursor:pointer;font-size:13px;color:var(--ink-2);padding:4px}
.fav:hover,.fav.on{color:var(--red)}
.intro{white-space:pre-line;margin:0;line-height:1.9}

/* ---------- 登录 / 账户 ---------- */
.narrow{max-width:480px;margin:0 auto;padding-block:40px}
.login-card{text-align:center;display:flex;flex-direction:column;gap:18px;align-items:center}
.qr{width:184px;height:184px;border:1px solid var(--line);border-radius:14px;background:#fff;padding:12px;box-shadow:var(--shadow)}
.qr img{width:100%;height:100%}
.steps{list-style:none;padding:0;margin:0;text-align:left;display:flex;flex-direction:column;gap:10px;font-size:14px;counter-reset:s}
.steps li{counter-increment:s;display:flex;gap:10px}
.steps li::before{content:counter(s);flex-shrink:0;width:22px;height:22px;border-radius:50%;background:var(--green);color:#F6F1E6;font-size:12px;display:grid;place-items:center;margin-top:2px}
.field{display:flex;gap:8px;width:100%}
.field input{flex:1;min-width:0;border:1px solid var(--line);background:#fff;border-radius:10px;padding:11px 14px;font-size:16px;letter-spacing:.2em;outline:0}
.field input:focus{border-color:var(--green)}
.msg{font-size:13px;min-height:1.5em}
.msg.err{color:var(--red)}
.msg.ok{color:var(--green)}
.acc-head{display:flex;align-items:center;gap:16px}
.avatar{width:58px;height:58px;border-radius:50%;background:var(--green);display:grid;place-items:center;font-family:var(--kai);font-size:24px;color:#F6F1E6}
.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}
.stat .k{font-size:12px;color:var(--ink-3);letter-spacing:.1em}
.stat .v{font-family:var(--serif);font-size:24px;font-weight:600;margin-top:2px;font-variant-numeric:tabular-nums}
.stat .s{font-size:12px;color:var(--ink-2)}
.stat.member{background:linear-gradient(140deg,#2F5D50,#264d42);color:#F6F1E6;border-color:transparent}
.stat.member .k,.stat.member .s{color:rgba(246,241,230,.75)}
.stat.member .v{color:#F6F1E6}
.stat.member a{color:#F6F1E6!important;text-decoration:underline}
@media (max-width:600px){.stats{grid-template-columns:1fr 1fr}.stats .stat:first-child{grid-column:1/-1}}
.tabs{display:flex;gap:22px;border-bottom:1px solid var(--line);margin-bottom:12px}
.tabs button{border:0;background:none;padding:8px 0;cursor:pointer;color:var(--ink-2);border-bottom:2px solid transparent;margin-bottom:-1px}
.tabs button.on{color:var(--ink);border-color:var(--red);font-weight:600}
.rows{list-style:none;padding:0;margin:0}
.rows li{display:flex;gap:12px;padding:11px 0;border-bottom:1px dashed var(--line);font-size:14px;align-items:center}
.rows li a{flex:1;min-width:0}
.rows li a:hover{color:var(--green)}
.rows li .t{color:var(--ink-3);font-size:12px;flex-shrink:0;font-variant-numeric:tabular-nums}
.demo{border:1px dashed #DDBBA9;background:#FBF1EA;border-radius:var(--radius);padding:14px 16px;font-size:13px;color:#7A4A3A}
.demo code{background:#fff;border-radius:4px;padding:1px 6px;font-size:12px;user-select:all;cursor:pointer}
.demo .btns{display:flex;flex-wrap:wrap;gap:8px 14px;margin-top:8px}

/* 获取方式 */
.rule{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
@media (max-width:600px){.rule{grid-template-columns:1fr}}
.rule .box h3{font-family:var(--serif);font-weight:600;font-size:18px;margin-bottom:6px;color:var(--green)}
.rule .box p{margin:0;font-size:14px;color:var(--ink-2)}

/* ---------- 页脚 ---------- */
.foot-site{margin-top:48px;padding-block:30px;font-size:13px;color:var(--ink-3);background:linear-gradient(180deg,transparent,rgba(238,230,212,.7));border-top:1px solid var(--line)}
.foot-site .wrap{display:flex;flex-wrap:wrap;gap:8px 22px;align-items:center}
.foot-site b{font-family:var(--kai);font-weight:400;color:var(--ink-2);font-size:18px;letter-spacing:.14em}
.foot-site a:hover{color:var(--green)}
.foot-site .r{margin-left:auto;display:flex;gap:18px;flex-wrap:wrap}
@media (max-width:820px){.foot-site .r{margin-left:0}}

.toast{position:fixed;left:50%;bottom:calc(92px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--ink);color:var(--paper);padding:11px 20px;border-radius:10px;font-size:14px;z-index:50;max-width:88vw;text-align:center;box-shadow:0 10px 30px -10px rgba(0,0,0,.4)}
.sheet-mask{position:fixed;inset:0;background:rgba(40,35,25,.38);z-index:40;display:grid;place-items:center;padding:16px}
.sheet{background:var(--card);border-radius:16px;padding:24px;max-width:380px;width:100%;display:flex;flex-direction:column;gap:16px;box-shadow:0 30px 60px -20px rgba(0,0,0,.4)}
.sheet .row{display:flex;gap:10px;justify-content:flex-end}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}

/* 示例预览图：文字叠在 SVG 底图上，用容器宽度做字号单位，缩略图和大图同比例 */
.ph{position:relative;width:100%;height:100%;container-type:inline-size;overflow:hidden}
.ph>img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s}
.ph-text{position:absolute;inset:0;padding:8cqw 8cqw;display:flex;flex-direction:column;align-items:flex-start;color:var(--ink)}
.ph.tall .ph-text{padding:10cqw 8cqw}
.ph-eb{font-family:var(--kai);font-size:2.6cqw;letter-spacing:.12em;color:var(--c);border-left:.6cqw solid var(--red);padding-left:2cqw;line-height:1.3;max-width:80%}
.ph-title{font-family:var(--kai);font-size:8.2cqw;line-height:1.2;margin-top:4cqw;letter-spacing:.04em;max-width:84%;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ph.tall .ph-title{font-size:11cqw}
.ph-sub{font-size:2.7cqw;color:var(--ink-2);margin-top:2.4cqw;letter-spacing:.06em}
.ph-seal{position:absolute;right:6cqw;top:7cqw;width:7cqw;height:7cqw;border-radius:1.4cqw}
.ph-page{font-family:var(--kai);font-size:4cqw;color:var(--c);margin-top:1cqw}
.ph-no{position:absolute;right:8cqw;top:9.4cqw;font-size:1.9cqw;color:var(--ink-3)}
.thumbs .ph-sub,.thumbs .ph-seal,.thumbs .ph-no{display:none}

/* 演示模式提示条 */
.demo-bar{background:#FBF1EA;color:#7A4A3A;border-bottom:1px dashed #DDBBA9;font-size:13px;text-align:center;padding:6px max(16px,env(safe-area-inset-right,0px)) 6px max(16px,env(safe-area-inset-left,0px))}
/* 登录注册切换 */
.seg{display:flex;background:var(--paper-2);border-radius:10px;padding:4px;width:100%}
.seg button{flex:1;border:0;background:none;padding:8px;border-radius:8px;cursor:pointer;color:var(--ink-2);font-size:15px}
.seg button.on{background:var(--card);color:var(--ink);font-weight:600;box-shadow:0 1px 3px rgba(90,70,30,.12)}
.form{display:flex;flex-direction:column;gap:12px;width:100%;text-align:left}
.form label{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--ink-2)}
.form input,.form select{border:1px solid var(--line);background:#fff;border-radius:10px;padding:11px 14px;font-size:16px;outline:0;width:100%}
.form input:focus,.form select:focus{border-color:var(--green)}
.form .row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:520px){.form .row2{grid-template-columns:1fr}}
.note{font-size:12px;color:var(--ink-3);line-height:1.6}
details.box summary{cursor:pointer;font-family:var(--serif);font-weight:600;font-size:16px}
details.box[open] summary{margin-bottom:14px}

/* 详情展示图（后台上传，从上往下展示） */
.showcase{display:flex;flex-direction:column;gap:10px;margin-top:12px}
.showcase .sc{position:relative;border-radius:10px;overflow:hidden;border:1px solid var(--line);background:var(--paper-2)}
.showcase .sc img{display:block;width:100%;height:auto}