:root{--ink:#101820;--muted:#6f7b84;--line:#dce2e5;--paper:#fff;--wash:#f4f6f6;--blue:#1474b8;--deep:#20282d;--orange:#c66d2e;--max:1440px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font:15px/1.65 Arial,"Microsoft YaHei",sans-serif;background:var(--paper)}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}.site-header{height:88px;display:flex;align-items:center;gap:42px;padding:0 max(24px,calc((100vw - var(--max))/2));border-bottom:1px solid var(--line);position:sticky;top:0;background:rgba(255,255,255,.96);backdrop-filter:blur(18px);z-index:20}.brand{display:flex;align-items:center;gap:18px;min-width:245px}.brand b{display:block;font-size:27px;line-height:1}.brand small{display:block;letter-spacing:5px;font-size:8px;margin-top:9px}.brand-mark{width:78px;height:38px;display:flex;align-items:flex-end;gap:4px}.brand-mark i{display:block;width:4px;background:var(--ink)}.brand-mark i:nth-child(1){height:20px}.brand-mark i:nth-child(2){height:29px}.brand-mark i:nth-child(3){height:36px}.brand-mark i:nth-child(4){height:31px}.brand-mark i:nth-child(5){height:25px}.brand-mark i:nth-child(6){height:19px}.brand-mark i:nth-child(7){height:13px}.brand-mark i:nth-child(8){height:8px}.top-search{height:44px;display:flex;flex:1;max-width:560px;border:1px solid var(--line);border-radius:24px;padding:0 12px 0 20px}.top-search input{border:0;outline:0;flex:1;background:transparent}.top-search button{border:0;background:none;color:var(--muted);font-size:20px}.account-nav{display:flex;align-items:center;gap:10px;margin-left:auto}.coin{border:1px solid var(--line);border-radius:22px;padding:8px 14px;color:var(--muted)}.coin b{color:var(--ink);margin-left:6px}.coin.bridge:before{content:"桥";display:inline-grid;place-items:center;width:19px;height:19px;border-radius:50%;background:#1c79b4;color:white;font-size:10px;margin-right:5px}.publish,.primary{border:0;background:var(--deep);color:white;padding:11px 21px;border-radius:3px;font-weight:bold;cursor:pointer}.avatar{width:40px;height:40px;border:2px solid var(--deep);border-radius:50%;display:grid;place-items:center}.text-button,.link-button{border:0;background:none;cursor:pointer}.messages{position:fixed;right:28px;top:102px;z-index:40}.message{background:var(--deep);color:white;padding:12px 18px;margin-bottom:8px;box-shadow:0 10px 30px #0002}.message.error{background:#8d312d}main{max-width:var(--max);margin:auto;padding:0 24px}.hero{min-height:370px;margin-top:20px;padding:66px 64px;background:#f0f2f2;display:grid;grid-template-columns:1.2fr .8fr;align-items:center;overflow:hidden}.eyebrow{font-size:11px;letter-spacing:5px;font-weight:bold;color:var(--blue)}.eyebrow.dark{color:var(--ink)}.hero h1{font-size:46px;line-height:1.22;letter-spacing:-2px;margin:20px 0 12px}.hero p{color:var(--muted)}.hero-art{height:230px;display:flex;align-items:flex-end;justify-content:flex-end;gap:13px;opacity:.14}.hero-art span{width:22px;background:var(--ink);height:40px}.hero-art span:nth-child(1){height:70px}.hero-art span:nth-child(2){height:145px}.hero-art span:nth-child(3){height:190px}.hero-art span:nth-child(4){height:160px}.hero-art span:nth-child(5){height:120px}.hero-art span:nth-child(6){height:88px}.hero-art span:nth-child(7){height:60px}.topic-section,.feed{padding:52px 0 30px}.section-head{display:flex;align-items:end;justify-content:space-between;margin-bottom:24px}.section-head h2{display:inline;font-size:28px;margin:0 12px 0 0}.section-head span{color:var(--muted);font-size:13px}.link-button{font-weight:bold}.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.topic-card{position:relative;border:1px solid var(--line);padding:24px;min-height:152px;transition:.25s}.topic-card:hover{transform:translateY(-4px);border-color:var(--ink);box-shadow:0 12px 32px #12202c12}.topic-card>span{letter-spacing:2px;font-size:11px;color:var(--muted)}.topic-card>i{position:absolute;right:20px;font-style:normal}.topic-card h3{font-size:20px;margin:10px 0 4px}.topic-card p{font-size:12px;color:var(--muted);margin:0}.topic-card>b{position:absolute;left:24px;right:24px;bottom:16px;height:2px;background:linear-gradient(90deg,var(--blue) 24%,var(--line) 24%)}.topic-extra{display:none}.topic-grid.expanded .topic-extra{display:block}.filters{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:16px 0}.filter-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.filter-row+ .filter-row{margin-top:4px}.filter-row>span{width:72px;color:#919aa0}.filter-row a{padding:8px 14px}.filter-row a.active{background:var(--deep);color:#fff;font-weight:bold}.sort{display:flex;gap:24px}.sort a{padding:8px;border-bottom:2px solid transparent;color:var(--muted)}.sort a.active{border-color:var(--blue);color:var(--blue);font-weight:bold}.post-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:58px 42px}.post-card .cover{height:330px;display:block;position:relative;overflow:hidden;background:#e8e7e3}.cover .type,.cover .price{position:absolute;top:18px;background:#fff;padding:7px 12px;font-size:12px;font-weight:bold}.cover .type{left:18px;background:#3c454a;color:#fff}.cover .price{right:18px;color:var(--blue)}.cover>div{position:absolute;left:13%;right:13%;top:27%;bottom:17%;background:#fff;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:30px;text-align:center;box-shadow:0 18px 45px #0e192419}.cover>div small{color:var(--muted)}.cover>div strong{font-size:23px;margin-top:10px}.tone-dark{background:#26312f!important}.tone-dark>div{background:transparent;color:#fff;box-shadow:none;border:1px solid #ffffff45}.tone-blue{background:#daeaf0!important}.tone-warm{background:#eee8df!important}.post-title{display:block;font-size:23px;font-weight:bold;margin-top:18px}.post-card>p{color:var(--muted);margin:5px 0}.tags{display:flex;gap:12px;color:#7f8990;font-size:12px}.card-meta{border-top:1px solid var(--line);margin-top:17px;padding-top:15px;display:flex;align-items:center;gap:8px;color:var(--muted);font-size:12px}.mini-avatar{width:27px;height:27px;border-radius:50%;background:#e6f1f6;color:var(--blue);display:grid;place-items:center}.grow{flex:1}.empty{grid-column:1/-1;padding:60px;text-align:center;background:var(--wash)}footer{max-width:var(--max);margin:70px auto 0;border-top:1px solid var(--line);padding:34px 24px 50px;display:flex;gap:26px;color:var(--muted)}footer b{color:var(--ink)}.detail-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:70px;padding:52px 5%}.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:32px}.pill{background:var(--deep);color:#fff;padding:7px 12px;font-size:12px}.article-head h1{font-size:48px;line-height:1.18;margin:24px 0 12px}.article-head>p{font-size:18px;color:var(--muted)}.author-line{display:flex;align-items:center;gap:12px;margin:28px 0 44px}.author-line span:last-child{display:flex;flex-direction:column}.author-line small{color:var(--muted)}.article-body{font-size:17px;line-height:2;max-width:840px}.attachments,.comments{border-top:1px solid var(--line);margin-top:46px;padding-top:28px}.attachments>a{display:block;background:var(--wash);padding:15px;margin:8px 0;color:var(--blue)}.locked{background:var(--wash);padding:26px;display:flex;align-items:center;gap:20px}.locked span{color:var(--muted);flex:1}.interactions{display:flex;gap:10px;margin-top:30px}.interactions button,.submission button{padding:9px 14px;background:#fff;border:1px solid var(--line);cursor:pointer}.comment{padding:18px 0;border-bottom:1px solid var(--line)}.comment small{color:var(--muted);margin-left:10px}.comments textarea,.side-card textarea{width:100%;border:1px solid var(--line);padding:14px;margin:12px 0}.detail-side{padding-top:52px}.side-card{border:1px solid var(--line);padding:25px;margin-bottom:20px}.side-card>span,.side-card>small{display:block;color:var(--muted)}.side-card>strong{display:block;font-size:28px;margin:8px 0 20px}.wide{width:100%}.submission{border-top:1px solid var(--line);padding:14px 0}.muted{color:var(--muted)}.form-page{max-width:1000px;margin:60px auto;display:grid;grid-template-columns:1fr 1.5fr;gap:80px}.form-page h1{font-size:40px;line-height:1.2}.form-page>div p{color:var(--muted)}.editor-form{border:1px solid var(--line);padding:34px}.editor-form label{display:block;margin-bottom:20px}.editor-form label>span{display:block;font-weight:bold;margin-bottom:6px}.editor-form input[type=text],.editor-form input[type=number],.editor-form select,.editor-form textarea{width:100%;border:1px solid var(--line);padding:11px}.editor-form ul{list-style:none;padding:0;columns:2}.errorlist,.error{color:#a52d29}.wallet-page{max-width:1000px;margin:50px auto}.wallet-hero{display:grid;grid-template-columns:1fr 1fr;gap:20px}.wallet-hero>div{background:var(--deep);color:#fff;padding:38px}.wallet-hero span,.wallet-hero small{display:block;color:#b8c1c5}.wallet-hero strong{display:block;font-size:52px}.ledger>div{display:grid;grid-template-columns:1fr 80px 80px 150px;align-items:center;border-bottom:1px solid var(--line);padding:16px 0}.ledger span:first-child{display:flex;flex-direction:column}.ledger a{font-size:12px;color:var(--blue)}.ledger .plus{color:#13804f}.login-page{min-height:650px;display:grid;place-items:center}.login-card{width:430px;border:1px solid var(--line);padding:42px}.login-card h1{font-size:36px}.login-card p{color:var(--muted)}.login-card input{width:100%;padding:12px;border:1px solid var(--line)}
@media(max-width:900px){.site-header{padding:0 16px}.top-search,.coin{display:none}.brand{min-width:0}.hero{grid-template-columns:1fr;padding:44px 28px}.hero h1{font-size:34px}.hero-art{display:none}.topic-grid,.post-grid{grid-template-columns:1fr}.topic-extra{display:none}.detail-layout,.form-page{grid-template-columns:1fr;gap:20px}.detail-side{padding:0}.article-head h1{font-size:36px}.wallet-hero{grid-template-columns:1fr}.post-card .cover{height:270px}.account-nav .bridge{display:none}}
.login-hint{margin-top:30px;padding:14px 18px;background:var(--wash);color:var(--muted)}.login-link{display:block;text-align:center;margin:14px 0}
.currency-rules{margin:34px 0;padding:26px;border:1px solid var(--line)}.currency-rules>div{display:grid;grid-template-columns:1fr 1fr;gap:30px}.currency-rules p{margin:0}.currency-rules b,.currency-rules span{display:block}.currency-rules span{color:var(--muted);margin-top:5px}
@media(max-width:900px){.currency-rules>div{grid-template-columns:1fr}}

/* 2026-09 brand refinement */
.site-header{height:92px;gap:48px;border-top:3px solid var(--ink);background:rgba(255,255,255,.97)}
.brand{gap:14px;min-width:270px}
.brand-mark{display:block;width:88px;height:38px;object-fit:contain;flex:none}
.brand-copy{display:block;padding-left:14px;border-left:1px solid #cbd2d6}
.brand b{font-size:29px;font-weight:800;letter-spacing:-1.8px;line-height:1}
.brand small{font-size:8px;font-weight:700;letter-spacing:3.5px;margin-top:10px}
.top-search{height:46px;max-width:590px}
.hero h1{font-size:48px;line-height:1.18;letter-spacing:-2.4px;margin-bottom:14px}
@media(max-width:900px){.site-header{height:78px}.brand{min-width:0;gap:9px}.brand-mark{width:58px;height:28px}.brand-copy{padding-left:9px}.brand b{font-size:23px}.brand small{font-size:6px;letter-spacing:2.5px;margin-top:7px}.hero h1{font-size:34px;letter-spacing:-1.4px}}

/* 2026-09 homepage editorial redesign */
.site-header{height:84px;border-top:0;padding-inline:max(24px,calc((100vw - 1060px)/2));gap:24px}
.brand{min-width:0;gap:24px;flex:0 1 auto}
.brand-mark{width:126px;height:52px;object-fit:contain;object-position:center}
.brand-slogan{padding-left:24px;border-left:1px solid var(--line);font-size:21px;font-weight:800;letter-spacing:-1px;white-space:nowrap}
.account-nav{margin-left:auto}
main{max-width:1108px}
.front-desk{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;padding:28px 0 30px}
.front-card{position:relative;min-height:260px;padding:27px 28px 24px;background:#222a2f;color:#fff;display:flex;flex-direction:column;overflow:hidden;transition:transform .25s ease,box-shadow .25s ease}
.front-card:before{content:"";position:absolute;inset:0;background:linear-gradient(150deg,transparent 36%,rgba(255,255,255,.08));pointer-events:none}
.front-card:hover{transform:translateY(-4px);box-shadow:0 18px 45px rgba(16,24,32,.16)}
.front-card:nth-child(2){background:#8c9193}
.front-card:nth-child(3){background:#e9ecec;color:var(--ink)}
.front-index{font-size:10px;letter-spacing:2.2px;opacity:.7}
.front-card h1{font-size:36px;line-height:1;margin:22px 0 auto;letter-spacing:-1.5px}
.front-card-copy{display:flex;flex-direction:column;gap:4px;position:relative;z-index:1}
.front-card-copy strong{font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.front-card-copy span{font-size:12px;line-height:1.5;opacity:.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.front-card i{font-style:normal;font-size:12px;margin-top:18px;opacity:.8}
.topic-section{padding-top:46px;border-top:1px solid var(--line)}
.feed{padding-top:50px;border-top:1px solid var(--line)}
@media(max-width:900px){.site-header{height:72px;padding-inline:18px}.brand{gap:12px}.brand-mark{width:91px;height:40px}.brand-slogan{font-size:15px;padding-left:12px;letter-spacing:-.5px}.front-desk{grid-template-columns:1fr;padding-top:18px}.front-card{min-height:190px}.topic-section{padding-top:38px}}
@media(max-width:560px){.brand-slogan{display:none}.front-card{min-height:174px;padding:22px}.front-card h1{font-size:31px}.section-head{align-items:flex-start;gap:12px}.section-head>div span{display:block;margin-top:4px}.sort{gap:6px}.sort a{font-size:12px}}

/* Reward rules */
.wallet-page{max-width:1100px;margin:52px auto}
.wallet-title{margin-bottom:30px;max-width:720px}
.wallet-title>span{font-size:10px;letter-spacing:3px;color:var(--blue);font-weight:700}
.wallet-title h1{font-size:42px;letter-spacing:-2px;margin:8px 0 6px}
.wallet-title p{margin:0;color:var(--muted);font-size:16px}
.rule-highlight{margin:22px 0 50px;padding:28px 34px;border-left:5px solid var(--blue);background:#edf3f6;display:grid;grid-template-columns:120px 1fr;column-gap:24px;align-items:center}
.rule-highlight>span{grid-row:1/3;color:var(--blue);font-weight:700;letter-spacing:2px}
.rule-highlight strong{font-size:25px;letter-spacing:-.8px}
.rule-highlight p{margin:4px 0 0;color:var(--muted)}
.rule-section{border-top:1px solid var(--line);padding:38px 0 46px}
.rule-heading{display:flex;gap:20px;align-items:flex-start;margin-bottom:24px}
.rule-heading>span{display:grid;place-items:center;width:38px;height:38px;border:1px solid var(--ink);border-radius:50%;font-size:12px}
.rule-heading h2{font-size:27px;margin:-2px 0 1px}
.rule-heading p{color:var(--muted);margin:0}
.rule-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.rule-grid article{border:1px solid var(--line);padding:25px;min-height:176px;display:flex;flex-direction:column}
.rule-grid article>b{color:var(--muted);font-size:13px}
.rule-grid article>strong{font-size:21px;margin:12px 0 auto}
.rule-grid article>p{font-size:13px;color:var(--muted);margin:18px 0 0}
.reward-table{border-top:2px solid var(--ink)}
.reward-row{display:grid;grid-template-columns:1.1fr .9fr 1fr 1.7fr;gap:20px;align-items:center;min-height:64px;padding:12px 16px;border-bottom:1px solid var(--line)}
.reward-row span:last-child{color:var(--muted);font-size:13px}
.reward-row strong{color:var(--blue);font-size:16px}
.reward-head{min-height:46px;background:var(--wash);font-size:12px;color:var(--muted);font-weight:700}
.reward-row.featured{background:#edf3f6}
.rule-note{padding:22px 25px;border:1px solid var(--line);display:flex;gap:28px}
.rule-note p{margin:0;color:var(--muted)}
.ledger-title{margin-top:52px}
@media(max-width:760px){.wallet-page{margin-top:30px}.wallet-title h1{font-size:34px}.rule-highlight{grid-template-columns:1fr;padding:24px}.rule-highlight>span{grid-row:auto;margin-bottom:8px}.rule-grid{grid-template-columns:1fr}.reward-row{grid-template-columns:1fr 1fr;gap:5px 14px}.reward-head{display:none}.reward-row span:last-child{grid-column:1/-1}.rule-note{flex-direction:column;gap:6px}.ledger>div{grid-template-columns:1fr 60px 60px}.ledger small{display:none}}

/* Publishing, covers and profiles */
.form-page{max-width:1120px;grid-template-columns:400px minmax(0,1fr);gap:48px;margin-top:52px;align-items:start}
.form-intro{position:sticky;top:125px}
.form-page .form-intro h1{font-size:31px;line-height:1.15;letter-spacing:-1.4px;white-space:nowrap;margin:24px 0 14px}
.cover-tip{margin-top:42px;padding:22px;border-left:3px solid var(--blue);background:var(--wash);display:flex;flex-direction:column;gap:5px}
.cover-tip span,.editor-form small{color:var(--muted);font-size:12px}
.editor-form input[type=file]{width:100%;padding:13px;border:1px dashed #aab4ba;background:var(--wash)}
.field-cover{padding:16px;background:#f7f9f9;border:1px solid var(--line)}
.cover.has-cover{background:#dfe4e6}
.cover.has-cover img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.cover.has-cover:hover img{transform:scale(1.025)}
.cover .type,.cover .price{z-index:3;box-shadow:0 5px 18px rgba(16,24,32,.10)}
.article-cover{display:block;width:100%;max-height:560px;object-fit:cover;margin:0 0 38px}
.author-link:hover,.author-line:hover b{text-decoration:underline}
.profile-page{max-width:1120px;margin:54px auto}
.profile-head{display:flex;align-items:center;gap:24px;padding:36px 0 42px;border-bottom:1px solid var(--line)}
.profile-avatar{width:86px;height:86px;border-radius:50%;background:var(--deep);color:#fff;display:grid;place-items:center;font-size:32px;font-weight:700}
.profile-head>div:nth-child(2){flex:1}.profile-head span{font-size:11px;letter-spacing:3px;color:var(--blue);font-weight:700}.profile-head h1{font-size:36px;line-height:1.1;margin:8px 0}.profile-head p{margin:0;color:var(--muted)}.profile-head>a{font-size:13px;font-weight:700}
.profile-stats{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--line)}
.profile-stats>div{padding:28px 20px;border-right:1px solid var(--line);display:flex;flex-direction:column}.profile-stats>div:last-child{border:0}.profile-stats span{color:var(--muted);font-size:12px}.profile-stats strong{font-size:30px;margin-top:6px}
.profile-section{padding-top:46px}.profile-list{border-top:2px solid var(--ink)}.profile-list>a{display:grid;grid-template-columns:100px 1fr auto;align-items:center;gap:16px;padding:17px 12px;border-bottom:1px solid var(--line);transition:background .2s}.profile-list>a:hover{background:var(--wash)}.profile-list>a>span{font-size:12px;color:var(--blue)}.profile-list>a>small{color:var(--muted)}.profile-columns{display:grid;grid-template-columns:1fr 1fr;gap:42px}.profile-list.compact>a{grid-template-columns:90px 1fr}
@media(max-width:900px){.form-page{grid-template-columns:1fr;margin-top:30px}.form-intro{position:static}.profile-stats{grid-template-columns:1fr 1fr}.profile-columns{grid-template-columns:1fr}.profile-head{align-items:flex-start;flex-wrap:wrap}.profile-list>a{grid-template-columns:70px 1fr}.profile-list>a>small{grid-column:2}.article-cover{max-height:420px}}
@media(max-width:560px){.form-page .form-intro h1{font-size:25px;white-space:normal}.profile-stats{grid-template-columns:1fr 1fr}.profile-avatar{width:64px;height:64px}.profile-head h1{font-size:29px}}