/* ========= 云汀鹤影 · 二级页预览（沿用原站结构，换成极光配色） ========= */
*{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#070B16;
  --bg2:#0B1020;
  --surface:rgba(255,255,255,.045);
  --t1:#F4F7FF;
  --t2:#C5CCE3;
  --t3:#8B93B0;
  --acc:#7CF5E0;
  --acc2:#B79CFF;
  --acc3:#8FCBFF;
  --on:#061018;
  --border:rgba(255,255,255,.10);
  --radius:20px;
  --btnr:14px;
  --disp:'Fredoka','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
  --body:'Inter','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
}
html{scroll-behavior:smooth}
body{font-family:var(--body);background:var(--bg);color:var(--t2);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
::selection{background:var(--acc);color:var(--on)}
.wrap{width:min(1080px,100% - 40px);margin:0 auto}
section{padding:88px 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--acc);margin-bottom:12px}
.eyebrow::before,.eyebrow::after{content:"";width:22px;height:2px;background:linear-gradient(90deg,var(--acc),var(--acc2));border-radius:2px;opacity:.7}
.sect-head{max-width:680px;margin:0 auto 44px;text-align:center}
.sect-head h2{font-family:var(--disp);font-size:clamp(28px,4vw,40px);font-weight:700;color:var(--t1);line-height:1.25}
.sect-head p{color:var(--t3);margin-top:12px;font-size:15px}

/* 顶栏 */
nav{position:sticky;top:0;z-index:50;background:rgba(7,11,22,.88);border-bottom:1px solid var(--border)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--disp);font-weight:700;font-size:18px;color:var(--t1)}
.brand-logo{width:34px;height:34px;border-radius:10px;overflow:hidden;background:linear-gradient(135deg,#1a2744,#0e1528);display:grid;place-items:center;box-shadow:0 0 0 1px rgba(124,245,224,.25),0 6px 18px rgba(124,245,224,.15)}
.brand-logo img{width:100%;height:100%;object-fit:cover}
.nav-links{display:flex;align-items:center;gap:22px;font-size:14.5px;font-weight:600;color:var(--t2)}
.nav-links a{transition:color .2s}
.nav-links a:hover{color:var(--acc)}
.nav-cta{background:linear-gradient(120deg,var(--acc),var(--acc2));color:#061018!important;padding:9px 18px;border-radius:var(--btnr);font-weight:700}
.nav-back{border:1.5px solid var(--border);padding:8px 14px;border-radius:var(--btnr);font-size:13.5px;color:var(--t3)}
.nav-back:hover{border-color:var(--acc);color:var(--acc)}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;place-items:center;background:var(--surface);color:var(--t1);position:relative;z-index:80}

/* Hero */
.hero{position:relative;min-height:calc(100svh - 64px);display:flex;align-items:center;overflow:hidden;
  background:
    radial-gradient(700px 420px at 78% 30%,rgba(183,156,255,.18),transparent 60%),
    radial-gradient(560px 380px at 15% 75%,rgba(124,245,224,.12),transparent 55%),
    radial-gradient(480px 300px at 50% 0%,rgba(143,203,255,.10),transparent 50%),
    var(--bg2)}
.hero::after{content:"";position:absolute;inset:0;background-image:
  radial-gradient(1px 1px at 20% 30%,rgba(255,255,255,.45),transparent),
  radial-gradient(1px 1px at 70% 20%,rgba(255,255,255,.35),transparent),
  radial-gradient(1.5px 1.5px at 40% 70%,rgba(255,255,255,.3),transparent),
  radial-gradient(1px 1px at 85% 60%,rgba(255,255,255,.4),transparent),
  radial-gradient(1px 1px at 10% 80%,rgba(255,255,255,.25),transparent),
  radial-gradient(1.5px 1.5px at 55% 45%,rgba(255,255,255,.2),transparent);
  pointer-events:none;opacity:.9}
.hero-in{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;width:min(1080px,100% - 40px);margin:0 auto;padding:72px 0}
.hero-art{display:flex;flex-direction:column;align-items:center;gap:18px}
.logo-card{position:relative;width:min(360px,88%);aspect-ratio:1;border-radius:28px;overflow:hidden;
  background:linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.02));
  border:1px solid rgba(124,245,224,.28);
  box-shadow:0 30px 80px rgba(0,0,0,.45),0 0 60px rgba(124,245,224,.12)}
.logo-card img{width:100%;height:100%;object-fit:cover}
.logo-caption{font-size:13px;color:var(--t3);letter-spacing:.12em}
.pill{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;padding:8px 15px;border-radius:999px;background:rgba(124,245,224,.12);color:var(--acc);border:1px solid rgba(124,245,224,.22)}
.pill.violet{background:rgba(183,156,255,.12);color:#CBB6FF;border-color:rgba(183,156,255,.25)}
.hero h1{font-family:var(--disp);font-size:clamp(40px,6.5vw,68px);font-weight:700;line-height:1.08;color:var(--t1);margin-top:18px}
.hero h1 .grad{background:linear-gradient(105deg,var(--acc) 10%,var(--acc3) 50%,var(--acc2) 90%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-slogan{font-family:var(--disp);font-size:clamp(16px,2.2vw,21px);font-weight:600;color:var(--t2);margin:16px 0 10px;letter-spacing:.04em}
.hero-desc{color:var(--t3);max-width:520px;font-size:15.5px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.b-pri{display:inline-flex;align-items:center;gap:8px;background:linear-gradient(120deg,var(--acc),var(--acc3));color:var(--on);border-radius:var(--btnr);padding:13px 26px;font-weight:700;font-size:15px;transition:transform .2s,box-shadow .2s}
.b-pri:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(124,245,224,.28)}
.b-sec{display:inline-flex;align-items:center;gap:8px;background:transparent;color:var(--acc);border:1.5px solid rgba(124,245,224,.4);border-radius:var(--btnr);padding:13px 26px;font-weight:700;font-size:15px;transition:all .2s}
.b-sec:hover{background:rgba(124,245,224,.1);border-color:var(--acc)}

/* 卡片通用 */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:26px}
.about-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.about-ico{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;font-size:22px;background:linear-gradient(135deg,rgba(124,245,224,.18),rgba(183,156,255,.16));margin-bottom:16px;border:1px solid rgba(124,245,224,.2)}
.about-card h3{font-family:var(--disp);font-size:18px;color:var(--t1);margin-bottom:10px}
.about-card p{font-size:14.5px;color:var(--t3);line-height:1.75}

/* 合作方 */
.partner-grid{display:grid;grid-template-columns:1fr auto 1fr;gap:20px;align-items:stretch}
.partner-card{flex:1}
.partner-card .tag{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.08em;padding:4px 12px;border-radius:999px;margin-bottom:14px}
.tag-bls{background:rgba(135,206,235,.15);color:#8FD4F0;border:1px solid rgba(135,206,235,.3)}
.tag-aurora{background:rgba(183,156,255,.15);color:#CBB6FF;border:1px solid rgba(183,156,255,.35)}
.partner-card h3{font-family:var(--disp);font-size:22px;color:var(--t1);margin-bottom:8px}
.partner-card p{font-size:14.5px;color:var(--t3)}
.vs{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;min-width:72px}
.vs-dot{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;font-family:var(--disp);font-weight:700;font-size:14px;
  background:linear-gradient(135deg,var(--acc),var(--acc2));color:#061018;box-shadow:0 0 36px rgba(183,156,255,.35)}
.vs-line{flex:1;width:2px;background:linear-gradient(180deg,transparent,var(--border),transparent);min-height:24px}

/* 时间线 */
.timeline{position:relative;max-width:760px;margin:0 auto;padding-left:28px}
.timeline::before{content:"";position:absolute;left:6px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--acc),var(--acc2),var(--acc3))}
.tl-item{position:relative;padding:0 0 28px 22px}
.tl-item::before{content:"";position:absolute;left:-28px;top:6px;width:14px;height:14px;border-radius:50%;background:var(--bg2);border:2px solid var(--acc);box-shadow:0 0 0 4px rgba(124,245,224,.15)}
.tl-year{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.06em;padding:3px 10px;border-radius:999px;background:rgba(124,245,224,.12);color:var(--acc);margin-bottom:8px}
.tl-card h3{font-family:var(--disp);font-size:17px;color:var(--t1);margin-bottom:6px}
.tl-card p{font-size:14px;color:var(--t3)}

/* 成员档案 */
.members-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.member-card{position:relative;text-align:center;padding:28px 18px 24px;overflow:hidden;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  transition:transform .25s,border-color .25s,box-shadow .25s}
.member-card:hover{transform:translateY(-6px);border-color:rgba(124,245,224,.4);box-shadow:0 18px 40px rgba(0,0,0,.35)}
.member-card::before{content:"";position:absolute;inset:0 0 auto;height:3px;background:linear-gradient(90deg,transparent,var(--mc,#7CF5E0),transparent);opacity:.85}
.m-avatar{width:96px;height:132px;margin:0 auto 16px;display:grid;place-items:center;position:relative}
.m-avatar canvas{image-rendering:pixelated;display:block;max-width:100%;max-height:120px;filter:drop-shadow(0 8px 16px rgba(0,0,0,.4))}
.m-avatar .m-fallback{width:72px;height:72px;border-radius:16px;background:linear-gradient(135deg,var(--mc,#7CF5E0),rgba(183,156,255,.8));display:grid;place-items:center;font-family:var(--disp);font-size:26px;font-weight:700;color:#061018}
.member-card h3{font-family:var(--disp);font-size:19px;color:var(--t1)}
.m-en{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--t3);margin-top:2px}
.m-title{font-size:13.5px;color:var(--acc);font-weight:700;margin-top:8px}
.m-tags{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin-top:12px}
.m-tags .tag{font-size:11px;font-weight:600;padding:3px 10px;border-radius:999px;background:rgba(255,255,255,.06);border:1px solid var(--border);color:var(--t2)}
.m-more{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:13px;font-weight:700;color:var(--acc);opacity:.9}
.members-note{text-align:center;font-size:13px;color:var(--t3);margin-top:18px}

/* 成果展示 */
.gal{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.gal-item{margin:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:transform .25s,border-color .25s}
.gal-item:hover{transform:translateY(-4px);border-color:rgba(183,156,255,.4)}
.gal-media{aspect-ratio:16/10;background:
  linear-gradient(135deg,rgba(124,245,224,.12),rgba(183,156,255,.16),rgba(143,203,255,.1)),
  var(--bg2);
  display:grid;place-items:center;position:relative;overflow:hidden}
.gal-media::after{content:"";position:absolute;inset:0;background:
  radial-gradient(ellipse at 30% 40%,rgba(124,245,224,.15),transparent 50%),
  radial-gradient(ellipse at 70% 60%,rgba(183,156,255,.18),transparent 55%)}
.gal-ph{position:relative;z-index:1;font-size:42px;font-family:var(--disp);font-weight:700;
  background:linear-gradient(135deg,var(--acc),var(--acc2));-webkit-background-clip:text;background-clip:text;color:transparent}
.gal-cap{padding:18px 18px 20px}
.gal-cap h3{font-family:var(--disp);font-size:16px;color:var(--t1);margin-bottom:6px}
.gal-cap p{font-size:13.5px;color:var(--t3);line-height:1.65}

/* 成员弹窗 + 3D */
.modal{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;padding:20px}
.modal[hidden]{display:none}
.modal-backdrop{position:absolute;inset:0;background:rgba(4,6,14,.72);backdrop-filter:blur(6px)}
.modal-panel{position:relative;width:min(720px,100%);max-height:min(90vh,820px);overflow-y:auto;background:var(--bg2);border:1px solid var(--border);border-radius:24px;box-shadow:0 30px 80px rgba(0,0,0,.55)}
.modal-close{position:absolute;top:14px;right:14px;z-index:5;width:40px;height:40px;border-radius:13px;background:rgba(255,255,255,.92);border:1px solid var(--border);display:grid;place-items:center;color:#0B1020;font-size:18px}
.modal-top{display:grid;grid-template-columns:300px 1fr;background:linear-gradient(180deg,rgba(124,245,224,.10),transparent 70%)}
.skin3d-box{position:relative;aspect-ratio:1;min-height:300px;display:flex;align-items:center;justify-content:center;overflow:hidden;background:radial-gradient(280px 220px at 50% 35%,rgba(183,156,255,.22),transparent 70%),#0A0F1E}
#skin3d{display:block;width:100%;height:100%;touch-action:none;margin:0 auto}
.skin2d-note{position:absolute;left:0;right:0;bottom:12px;text-align:center;font-size:12px;color:var(--t3);z-index:2;pointer-events:none}
.skin3d-fallback{position:absolute;inset:0;margin:auto;max-width:58%;max-height:78%;image-rendering:pixelated;filter:drop-shadow(0 12px 24px rgba(0,0,0,.5))}
.modal-head{padding:28px 26px 22px;display:flex;flex-direction:column;gap:10px;min-width:0}
.modal-head h2{font-family:var(--disp);font-size:28px;color:var(--t1);line-height:1.2}
.modal-head .m-en{font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--t3)}
.mm-meta{display:flex;flex-wrap:wrap;gap:14px;font-size:13px;color:var(--t3);margin-top:4px}
.mm-meta b{color:var(--t1);font-weight:700}
.modal-body{padding:8px 26px 28px}
.modal-body h4{font-family:var(--disp);font-size:16px;color:var(--t1);margin:16px 0 8px}
.modal-body p{font-size:14.5px;color:var(--t2);line-height:1.8;white-space:pre-line}
@media(max-width:820px){
  .modal{padding:0;align-items:flex-end}
  .modal-panel{width:100%;max-height:94vh;border-radius:24px 24px 0 0}
  .modal-top{grid-template-columns:1fr}
  .skin3d-box{min-height:min(40vh,340px);max-height:46vh}
  .modal-head{padding:22px 20px 14px}
  .modal-body{padding:0 20px 26px}
}

/* 加入 */
.join-card{max-width:560px;margin:0 auto;text-align:center;padding:40px 32px;
  background:linear-gradient(160deg,rgba(124,245,224,.08),rgba(183,156,255,.08));
  border:1px solid rgba(124,245,224,.25);border-radius:24px}
.join-card h3{font-family:var(--disp);font-size:24px;color:var(--t1);margin-bottom:10px}
.join-card p{color:var(--t3);font-size:15px;margin-bottom:24px}

/* 页脚 */
footer{border-top:1px solid var(--border);padding:36px 0 48px;background:var(--bg2)}
.footer-in{display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center}
.foot-brand{font-family:var(--disp);font-weight:700;color:var(--t1);font-size:16px;display:flex;align-items:center;gap:10px}
.foot-links{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;font-size:13px;color:var(--t3)}
.foot-links a:hover{color:var(--acc)}
.foot-note{font-size:12.5px;color:var(--t3);opacity:.85}

/* 移动端 */
@media(max-width:820px){
  section{padding:64px 0}
  .nav-links{position:fixed;inset:0;background:rgba(7,11,22,.98);flex-direction:column;justify-content:center;gap:22px;font-size:18px;z-index:60;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .22s,visibility .22s}
  .nav-links.open{opacity:1;visibility:visible;pointer-events:auto}
  .nav-links a{padding:10px 18px;border-radius:12px;color:var(--t1)}
  .nav-toggle{display:grid}
  body.nav-open{overflow:hidden}
  .hero-in{grid-template-columns:1fr;gap:32px;padding:40px 0 56px;text-align:center}
  .hero-art{order:-1}
  .logo-card{width:min(260px,72%)}
  .hero-desc{margin:0 auto}
  .hero-badges,.hero-actions{justify-content:center}
  .about-grid{grid-template-columns:1fr}
  .members-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .gal{grid-template-columns:1fr}
  .partner-grid{grid-template-columns:1fr}
  .vs{flex-direction:row;padding:4px 0}
  .vs-line{display:none}
}

/* 成员形象：与主站一致的居中布局（服务端渲染图 + canvas 兜底） */
.m-avatar-wrap{
  position:relative;
  width:72px;
  height:136px;
  margin:0 auto 14px;
}
.m-avatar-wrap .m-avatar-img,
.m-avatar-wrap .m-avatar{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  margin:0 auto;
  object-fit:contain;
  image-rendering:pixelated;
  display:block;
}
.m-avatar-wrap .m-avatar-img{
  filter:drop-shadow(0 8px 16px rgba(0,0,0,.35));
}
.member-card .m-avatar-wrap{
  display:flex;
  align-items:flex-end;
  justify-content:center;
}