:root{color-scheme:dark;--page:#0d121c;--paper:#171e2c;--ink:#f3f6fc;--muted:#a3afc1;--subtle:#7d8aa0;--line:#ffffff13;--blue:#82bdff;--control:#1c2637;font-family:"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--page);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}h1,h2,h3,p{margin:0}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button{cursor:pointer}button,a,summary{touch-action:manipulation;-webkit-tap-highlight-color:transparent}img{display:block;max-width:100%}a,button,summary,input,textarea{outline-offset:5px}a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid #82bdff}[hidden]{display:none!important}
.poster-page{background:radial-gradient(ellipse 950px 650px at 50% 0,#17273e,transparent 85%),#0d121c;padding:30px 20px 50px}.poster{max-width:880px;margin:0 auto;background:var(--paper);box-shadow:0 18px 85px #0004;border:1px solid #ffffff08;border-radius:3px;overflow:hidden}.poster-cover{height:516px;position:relative;isolation:isolate;background:#141e2e}.cover-art{position:absolute;inset:0;object-fit:cover;object-position:center;width:100%;height:100%;z-index:-2}.poster-cover:after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,transparent 76%,#171e2c),linear-gradient(90deg,#15203544,transparent 50%);pointer-events:none}.cover-brand{position:absolute;top:32px;left:43px;display:flex;align-items:center;gap:9px;font-size:12px;color:#d6e3f7;letter-spacing:.05em;text-decoration:none}.cover-brand img{width:28px;height:28px;border-radius:7px}.cover-brand>span:last-child{color:#99aecb;font-size:11px}.cover-brand-line{width:1px;height:12px;background:#ffffff38;margin:0 4px}.cover-copy{position:absolute;left:56px;top:125px;z-index:1}.cover-label{color:#9cbce3;font-size:13px;letter-spacing:.25em;margin-bottom:14px}.cover-copy h1{font-size:65px;line-height:1.23;letter-spacing:.01em;font-weight:850}.cover-copy h1>span{color:#9bd3ff}.cover-slogan{font-size:16px;letter-spacing:.07em;color:#c5d5eb;margin-top:22px}.recruit-stamp{display:inline-block;color:#a9c8ec;border:1px solid #59769b;border-radius:5px;padding:3px 12px;font-size:11px;margin-top:24px;letter-spacing:.18em;background:#152d4b66}.cover-caption{position:absolute;bottom:25px;left:56px;color:#7f98b8;letter-spacing:.21em;font-size:9px}.poster-content{padding:0 52px}.poster-intro{text-align:center;padding:18px 0 43px}.poster h2{font-size:25px;line-height:1.5;letter-spacing:.025em;font-weight:650}.poster-intro>p{font-size:14px;color:var(--muted);line-height:1.95;margin-top:18px}.poster-intro>.intro-invitation{margin-top:12px;color:#c3cdde}.signup-button{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:13px 31px;min-height:50px;background:linear-gradient(110deg,#337ff3,#4668dd);border:1px solid #689cff55;border-radius:11px;color:#fff;font-size:15px;font-weight:650;box-shadow:0 6px 25px #2475ff25;transition:background .2s,box-shadow .2s}.signup-button:hover{background:linear-gradient(110deg,#438fff,#5678ed);box-shadow:0 7px 26px #2475ff40}.poster-intro .signup-button{margin-top:29px}.poster-intro>.signup-hint{font-size:11px;color:#8797ae;margin-top:10px;letter-spacing:.03em}
.poster-section{padding:35px 0 38px;text-align:center;border-top:1px solid var(--line)}.section-kicker{font-size:11px;color:#81aadd;letter-spacing:.13em;margin-bottom:7px}.section-description{font-size:13px;color:var(--muted);margin-top:9px}.contribution-grid{display:grid;grid-template-columns:repeat(3,1fr);margin-top:30px}.contribution-grid article{padding:0 13px}.contribution-grid article+article{border-left:1px solid var(--line)}.contribution-icon{display:block;color:#87b7ec;font-size:26px;line-height:1.5;font-weight:400}.contribution-grid h3{font-size:16px;font-weight:600;margin-top:8px}.contribution-grid p{font-size:12px;line-height:1.95;color:#a1afc3;margin-top:9px}.poster-callout{background:#24365055;border:1px solid #5a8ac722;padding:15px 20px;margin-top:28px;border-radius:9px;font-size:12px;color:#a4b9d3}.poster-callout strong{font-weight:500;color:#c6d9ef}.space-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:27px;align-items:stretch}.space-item{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:155px;padding:24px 12px;border:1px solid #6b84a638;background:#1c2636;border-radius:12px;text-align:center;transition:background .2s,border-color .2s}.space-item:hover{background:#22334b;border-color:#5a83b680}.space-icon{font-size:26px;line-height:1.4;display:block;margin-bottom:12px}.space-item h3{font-size:15px;font-weight:600}.space-item p{font-size:11px;color:#9eafc6;margin-top:7px}.poster-footer{text-align:center;border-top:1px solid var(--line);font-size:10px;letter-spacing:.04em;color:#8391a7;padding:22px 0 24px}
@media(max-width:720px){.poster-page{padding:0 0 22px}.poster{border:0;border-radius:0}.poster-cover{height:445px}.cover-brand{left:25px;top:24px;font-size:11px}.cover-brand>span:last-child{font-size:10px}.cover-copy{left:33px;top:123px}.cover-copy h1{font-size:clamp(39px,7.8vw,57px)}.cover-label{font-size:11px}.cover-slogan{font-size:12px;letter-spacing:.01em;max-width:210px;margin-top:20px}.recruit-stamp{font-size:10px;padding:2px 9px;margin-top:18px}.cover-caption{left:33px;font-size:8px;bottom:22px}.poster-content{padding:0 26px}.poster-intro{padding:13px 0 32px}.poster h2{font-size:22px}.poster-intro>p{font-size:13px}.poster-section{padding:30px 0}.contribution-grid{margin-top:25px}.contribution-grid article{padding:0 8px}.contribution-grid h3{font-size:14px}.contribution-grid p{font-size:11px}.contribution-grid p br{display:none}.poster-callout{padding:13px;font-size:12px}.space-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:24px}.space-item h3{font-size:15px}.space-icon{font-size:23px;margin-bottom:9px}}
@media(max-width:480px){.poster-cover{height:486px}.cover-art{top:auto;bottom:-12px;left:-5%;width:110%;max-width:none;height:auto;object-fit:contain}.poster-cover:after{background:linear-gradient(180deg,#151e2d 0%,transparent 50%,transparent 86%,#171e2c 100%)}.cover-brand{left:24px;top:21px}.cover-copy{left:28px;top:82px}.cover-label{font-size:10px;letter-spacing:.2em;margin-bottom:11px}.cover-copy h1{font-size:43px;line-height:1.25;letter-spacing:.04em}.cover-slogan{font-size:12px;max-width:155px;line-height:1.8;margin-top:14px}.recruit-stamp{font-size:9px;margin-top:15px}.cover-caption{bottom:15px;left:28px;font-size:7px;letter-spacing:.15em}.poster-content{padding-inline:23px}.poster-intro{padding-top:16px}.poster h2{font-size:20px;letter-spacing:0}.poster-intro>p{font-size:13px;line-height:1.95;margin-top:16px}.poster-intro p br{display:none}.poster-intro>.intro-invitation{margin-top:10px}.signup-button{font-size:14px;padding:12px 23px;min-height:48px;border-radius:9px}.poster-intro .signup-button{margin-top:23px}.poster-intro>.signup-hint{font-size:10px}.section-kicker{font-size:10px}.section-description{font-size:12px}.contribution-grid{grid-template-columns:1fr;gap:20px;text-align:left;margin-top:27px}.contribution-grid article{position:relative;padding-left:46px;min-height:49px}.contribution-grid article+article{border:0}.contribution-icon{position:absolute;left:4px;top:3px;width:28px;text-align:center;font-size:25px}.contribution-grid h3{margin:0;font-size:15px}.contribution-grid p{font-size:12px;line-height:1.8;margin-top:4px}.poster-callout{margin-top:24px;font-size:12px;line-height:1.9}.poster-callout strong{display:block}.space-item h3{font-size:14px}.poster-footer{font-size:10px;padding:20px 0}}
@media(max-width:360px){.poster-content{padding-inline:18px}.poster-cover{height:450px}.cover-copy h1{font-size:38px}.cover-slogan{max-width:140px}.cover-brand{gap:7px;left:21px}.cover-brand>span:last-child{font-size:9px}.poster h2{font-size:18px}.poster-intro>p{font-size:12px}.signup-button{font-size:13px;padding-inline:19px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}
.poster-cover{overflow:hidden}
@media(max-width:480px){.cover-art{mask-image:linear-gradient(180deg,transparent,#000 18%,#000 88%,transparent)}}


.official-resources { padding-top: 37px; padding-bottom: 40px; }
.official-resources h2 { font-size: 23px; }
.official-resources h2 > span { font-size: 20px; margin-right: 5px; }
.resource-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 28px; }
.resource-card { display: block; padding: 15px 15px 18px; border: 1px solid #6b84a638; border-radius: 15px; background: #1b2230; transition: border-color .2s, background .2s; }
.resource-card:hover { border-color: #5a83b680; background: #202c3e; }
.resource-card img { width: 100%; height: auto; aspect-ratio: 1; background: #fff; border-radius: 7px; }
.resource-card h3 { font-size: 13px; line-height: 1.6; font-weight: 600; color: #d0dbeb; margin-top: 17px; }
.resource-card p { color: #97a8c0; font-size: 10px; line-height: 1.8; margin-top: 5px; }
.community-page { min-height: 100vh; }
.community-paper { max-width: 800px; }
.community-header { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 25px 38px; border-bottom: 1px solid var(--line); }
.community-brand { display: flex; align-items: center; gap: 9px; font-size: 12px; color: #c6d7ed; }
.community-brand img { width: 28px; height: 28px; border-radius: 6px; }
.community-back { font-size: 12px; color: #a4bee1; text-decoration: underline; text-underline-offset: 5px; white-space: nowrap; }
.community-content { padding: 0 52px; }
.community-intro { padding: 44px 0 32px; text-align: center; }
.community-icon { display: block; font-size: 40px; line-height: 1.5; margin-bottom: 17px; }
.community-intro h1 { font-size: 31px; font-weight: 650; line-height: 1.5; margin-top: 10px; }
.community-intro > p:last-child { font-size: 14px; color: var(--muted); line-height: 1.95; margin-top: 17px; }
.community-notice { text-align: center; padding: 26px 30px; border: 1px solid #678fbd35; border-radius: 12px; background: #1d2b40; }
.community-status { display: inline-block; color: #a8c9f2; background: #2d46654d; padding: 3px 11px; border-radius: 5px; font-size: 11px; }
.community-notice h2 { font-size: 20px; line-height: 1.6; margin-top: 15px; }
.community-notice p { font-size: 13px; line-height: 1.9; color: #a6b9d2; margin-top: 11px; }
.community-list { margin-top: 26px; }
.community-list article { padding: 20px 0; display: grid; grid-template-columns: 110px 1fr; align-items: baseline; gap: 15px; border-bottom: 1px solid var(--line); }
.community-list h2 { font-size: 15px; font-weight: 600; }
.community-list p { color: var(--muted); font-size: 13px; line-height: 1.85; }
.community-note { text-align: center; font-size: 12px; line-height: 1.9; color: #91a8c4; padding: 25px 0 30px; }
@media (max-width: 720px) {
  .resource-card { padding: 12px 12px 16px; }
  .resource-card h3 { font-size: 12px; }
  .resource-grid { gap: 12px; }
  .community-header { padding: 21px 25px; }
  .community-content { padding: 0 30px; }
}
@media (max-width: 480px) {
  .space-grid { grid-template-columns: 1fr; gap: 10px; }
  .space-item { min-height: 88px; display: grid; grid-template-columns: 34px 1fr; grid-template-rows: auto auto; gap: 0 16px; justify-items: start; padding: 17px 21px; text-align: left; }
  .space-icon { grid-row: 1 / 3; margin: 0; align-self: center; font-size: 25px; }
  .space-item h3 { align-self: end; font-size: 15px; }
  .space-item p { align-self: start; font-size: 12px; margin-top: 3px; }
  .official-resources { padding: 30px 0; }
  .official-resources h2 { font-size: 20px; }
  .resource-grid { grid-template-columns: 1fr; gap: 12px; margin-top: 23px; }
  .resource-card { display: grid; grid-template-columns: 112px 1fr; grid-template-rows: 1fr 1fr; gap: 0 17px; padding: 13px; text-align: left; }
  .resource-card img { grid-row: 1 / 3; }
  .resource-card h3 { align-self: end; font-size: 13px; margin: 0; }
  .resource-card p { align-self: start; font-size: 11px; margin-top: 6px; }
  .community-header { padding: 20px; gap: 10px; }
  .community-brand { font-size: 11px; gap: 7px; }
  .community-back { font-size: 11px; }
  .community-content { padding: 0 23px; }
  .community-intro { padding: 32px 0 26px; }
  .community-intro h1 { font-size: 26px; }
  .community-intro > p:last-child { font-size: 13px; }
  .community-notice { padding: 24px 20px; }
  .community-notice h2 { font-size: 18px; }
  .community-list article { grid-template-columns: 1fr; gap: 6px; padding: 17px 0; }
}
@media (max-width: 360px) {
  .resource-card { grid-template-columns: 96px 1fr; gap: 0 12px; }
  .resource-card h3 { font-size: 12px; }
  .resource-card p { font-size: 10px; }
}
/* 与官网展示规范一致：宣传主体不使用投影，以细边框区分层级。 */
.poster{box-shadow:none!important;border-color:#ffffff18!important}