/*
 * 奇多课堂视觉样式
 * @author Vic Chu
 */

:root{
  --bg:#F5FAF4;
  --paper:#FFFDF5;
  --surface:rgba(255,255,255,.78);
  --surface-strong:rgba(255,255,255,.92);
  --glass:rgba(255,255,255,.58);
  --mint:#71D7C1;
  --mint-2:#DFF7EF;
  --blue:#6AAFEF;
  --blue-2:#E7F3FF;
  --yellow:#FFE49C;
  --yellow-2:#FFF7DB;
  --orange:#F59A62;
  --orange-2:#FFEBDD;
  --purple:#A997E8;
  --purple-2:#F1EDFF;
  --ink:#173E52;
  --ink-2:#3E6476;
  --muted:#71909D;
  --line:rgba(128,161,171,.24);
  --line-strong:rgba(74,116,132,.18);
  --danger:#E86666;
  --success:#42AE89;
  --shadow:0 28px 70px rgba(48,96,112,.16);
  --shadow-soft:0 16px 38px rgba(48,96,112,.12);
  --shadow-tiny:0 8px 18px rgba(48,96,112,.10);
  --radius:30px;
  --radius-sm:18px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink);
  font-family:"HarmonyOS Sans SC","MiSans","Alibaba PuHuiTi","PingFang SC","Microsoft YaHei",sans-serif;
  background-color:var(--bg);
  background-image:
    linear-gradient(118deg,rgba(113,215,193,.18) 0 16%,transparent 16% 100%),
    linear-gradient(305deg,rgba(106,175,239,.16) 0 18%,transparent 18% 100%),
    repeating-linear-gradient(90deg,rgba(23,62,82,.035) 0 1px,transparent 1px 86px),
    repeating-linear-gradient(0deg,rgba(23,62,82,.028) 0 1px,transparent 1px 86px),
    linear-gradient(180deg,#FBFEF9 0%,#F3FAFF 46%,#FFFDF5 100%);
  min-height:100vh;
}

body:before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  opacity:.32;
  background-image:linear-gradient(rgba(255,255,255,.55) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.42) 1px,transparent 1px);
  background-size:28px 28px;
  mask-image:linear-gradient(180deg,black,transparent 72%);
}

a{color:inherit;text-decoration:none}
img,svg{max-width:100%;display:block}
button,input,select,textarea{font:inherit}
.container{width:min(1180px,calc(100% - 48px));margin:0 auto;position:relative;z-index:1}

.nav{
  position:sticky;
  top:0;
  z-index:50;
  backdrop-filter:blur(22px) saturate(1.18);
  background:rgba(247,251,246,.78);
  border-bottom:1px solid rgba(255,255,255,.68);
  box-shadow:0 10px 32px rgba(50,88,104,.08);
}
.nav-inner{height:82px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.library-nav-inner{justify-content:space-between}
.logo{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.logo img{width:214px;height:auto}
/* 头部使用上传品牌图，柔光底色与毛玻璃导航自然融合 */
.logo-brand{
  position:relative;
  min-height:62px;
  padding:7px 10px 8px 8px;
  border-radius:0;
  overflow:hidden;
  isolation:isolate;
  background:transparent;
  border:0;
  box-shadow:none;
}
.logo-brand:before{
  content:"";
  position:absolute;
  inset:4px 0;
  z-index:-1;
  border-radius:22px;
  background:radial-gradient(ellipse at 42% 50%,rgba(255,255,255,.44) 0%,rgba(247,251,246,.28) 45%,rgba(247,251,246,0) 76%);
  filter:blur(1px);
}
.logo-brand:after{
  content:none;
}
.logo-brand-picture{display:block}
.logo-brand img{
  width:278px;
  height:auto;
  max-width:none;
  filter:drop-shadow(0 4px 8px rgba(31,120,132,.10));
}
.nav-links{display:flex;align-items:center;gap:8px}
.nav-links a{
  position:relative;
  font-weight:900;
  font-size:15px;
  color:var(--ink-2);
  padding:12px 15px;
  border-radius:999px;
  transition:.18s ease;
}
.nav-links a:hover,.nav-links a.active{
  color:var(--ink);
  background:rgba(255,255,255,.68);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.74),var(--shadow-tiny);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;justify-content:flex-end}
.user-chip{
  min-height:42px;
  display:inline-flex;
  align-items:center;
  padding:0 14px;
  border-radius:999px;
  color:#1E715F;
  font-weight:950;
  background:rgba(223,247,239,.78);
  border:1px solid rgba(113,215,193,.42);
}
.user-menu{position:relative;display:inline-flex}
.user-chip-button{cursor:pointer}
.user-popover{
  position:absolute;
  right:0;
  top:calc(100% + 12px);
  z-index:80;
  width:220px;
  padding:16px;
  border-radius:18px;
  background:rgba(255,255,255,.96);
  border:1px solid rgba(124,156,166,.22);
  box-shadow:0 22px 54px rgba(48,96,112,.20);
  backdrop-filter:blur(18px);
}
.user-popover[hidden]{display:none}
.user-popover strong{display:block;font-size:18px;line-height:1.35;margin-bottom:4px}
.user-popover span{display:block;color:var(--muted);font-weight:900;margin-bottom:14px}
.user-popover .btn{width:100%;min-height:40px;border-radius:14px}
.btn{
  border:0;
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 20px;
  border-radius:20px;
  font-weight:950;
  font-size:15px;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{
  color:#fff;
  background:linear-gradient(135deg,#40BFA8 0%,#63AEEB 100%);
  box-shadow:0 16px 30px rgba(83,165,207,.24),inset 0 1px 0 rgba(255,255,255,.42);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 38px rgba(83,165,207,.30),inset 0 1px 0 rgba(255,255,255,.50)}
.nav-actions .btn-apply-beta{
  min-height:42px;
  height:42px;
  padding:0 15px;
  border-radius:999px;
  font-size:14px;
  box-shadow:0 10px 22px rgba(83,165,207,.18),inset 0 1px 0 rgba(255,255,255,.42);
}
.nav-actions .btn-apply-beta:hover{
  transform:translateY(-1px);
  box-shadow:0 13px 26px rgba(83,165,207,.22),inset 0 1px 0 rgba(255,255,255,.50);
}
.btn-ghost{
  color:var(--ink);
  background:rgba(255,255,255,.70);
  border:1px solid rgba(124,156,166,.26);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.72);
}
.btn-ghost:hover{transform:translateY(-1px);background:rgba(255,255,255,.92);box-shadow:var(--shadow-tiny)}
.btn-soft{
  color:#1B6F60;
  background:linear-gradient(135deg,#E7FBF4,#F8FFF7);
  border:1px solid rgba(113,215,193,.34);
}
.btn-dark{background:#173E52;color:white}

.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  border-radius:999px;
  padding:8px 13px;
  font-size:13px;
  font-weight:950;
  background:rgba(231,251,244,.82);
  color:#1D7464;
  border:1px solid rgba(113,215,193,.34);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.66);
}
.badge.yellow{background:rgba(255,247,219,.86);color:#85611E;border-color:rgba(255,204,92,.38)}
.badge.blue{background:rgba(231,243,255,.86);color:#255F92;border-color:rgba(106,175,239,.28)}
.badge.purple{background:rgba(241,237,255,.88);color:#6254A3;border-color:rgba(169,151,232,.30)}
.nowrap{white-space:nowrap}

.hero{padding:76px 0 52px}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;align-items:center;gap:48px}
.eyebrow{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
h1{
  font-size:64px;
  line-height:1.06;
  margin:0 0 22px;
  letter-spacing:0;
  color:var(--ink);
}
h1 .mark{
  color:transparent;
  background:linear-gradient(115deg,#218D7B 0%,#387FC7 56%,#8C74D9 100%);
  -webkit-background-clip:text;
  background-clip:text;
}
.hero h1{font-size:60px}
.hero h1 .mark{display:inline-block;font-size:.84em;white-space:nowrap}
.lead{font-size:20px;line-height:1.86;color:var(--ink-2);margin:0 0 30px;max-width:680px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;align-items:center;margin-bottom:32px}
.cta-wrap{position:relative;display:inline-flex;align-items:center}
.cta-arrow{
  position:absolute;
  right:calc(100% + 12px);
  width:58px;
  height:42px;
  display:grid;
  place-items:center;
  border-radius:999px;
  background:rgba(255,255,255,.56);
  border:1px solid rgba(255,255,255,.76);
  box-shadow:var(--shadow-tiny);
  backdrop-filter:blur(16px);
  animation:arrowFloat 1.45s ease-in-out infinite;
}
.cta-arrow svg{width:38px;height:26px}
.cta-arrow path{fill:none;stroke:#1F7B6B;stroke-width:4;stroke-linecap:round;stroke-linejoin:round}
@keyframes arrowFloat{
  0%,100%{transform:translateX(0)}
  50%{transform:translateX(9px)}
}
.hero-card{
  position:relative;
  border-radius:44px;
  background:linear-gradient(145deg,rgba(255,255,255,.72),rgba(255,255,255,.44));
  box-shadow:var(--shadow);
  border:1px solid rgba(255,255,255,.78);
  padding:18px;
  overflow:hidden;
  backdrop-filter:blur(18px);
}
.hero-card:before{
  content:"";
  position:absolute;
  inset:14px;
  border-radius:34px;
  border:1px solid rgba(255,255,255,.65);
  background:linear-gradient(135deg,rgba(113,215,193,.12),rgba(255,228,156,.10),rgba(106,175,239,.12));
}
/* 3D 展示区：无内描边，外框为半透明渐变玻璃 */
.hero-card:has(.hero-3d-stage):before{display:none}
.hero-card:has(.hero-3d-stage){
  padding:11px;
  border:1px solid rgba(255,255,255,.58);
  background:linear-gradient(
    148deg,
    rgba(113,215,193,.36) 0%,
    rgba(106,175,239,.30) 44%,
    rgba(231,243,255,.34) 72%,
    rgba(255,228,156,.26) 100%
  );
  backdrop-filter:blur(26px) saturate(1.22);
  -webkit-backdrop-filter:blur(26px) saturate(1.22);
  box-shadow:
    var(--shadow),
    inset 0 1px 1px rgba(255,255,255,.7),
    inset 0 -16px 32px rgba(106,175,239,.07);
}
.hero-card:has(.hero-3d-stage)::after{
  content:"";
  position:absolute;
  inset:0;
  border-radius:inherit;
  pointer-events:none;
  background:linear-gradient(
    155deg,
    rgba(255,255,255,.38) 0%,
    transparent 40%,
    transparent 58%,
    rgba(106,175,239,.09) 100%
  );
}
.hero-card img{position:relative;z-index:1}
.hero-3d-stage{
  position:relative;
  z-index:1;
  box-sizing:border-box;
  aspect-ratio:680 / 460;
  width:100%;
  min-height:280px;
  padding:0;
  border-radius:33px;
  overflow:hidden;
  background:transparent;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.22);
}
.hero-3d-stage canvas{
  width:100%;
  height:100%;
  display:block;
  border-radius:33px;
  background:linear-gradient(152deg,#e8f8f3 0%,#e3efff 46%,#f5f0e6 100%);
}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;max-width:680px}
.stat{
  background:rgba(255,255,255,.68);
  border:1px solid rgba(255,255,255,.78);
  border-radius:26px;
  padding:18px;
  box-shadow:var(--shadow-soft);
  backdrop-filter:blur(14px);
}
.stat strong{font-size:30px;display:block;color:var(--ink);line-height:1}
.stat span{font-size:13px;color:var(--muted);font-weight:900}
.reveal{animation:riseIn .62s ease both}
.delay-1{animation-delay:.08s}.delay-2{animation-delay:.16s}.delay-3{animation-delay:.24s}.delay-4{animation-delay:.32s}
@keyframes riseIn{
  from{opacity:0;transform:translateY(14px)}
  to{opacity:1;transform:translateY(0)}
}

.section{padding:62px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin:0 0 28px}
.section-title{max-width:760px}
.section-title h2{font-size:42px;line-height:1.18;margin:0 0 12px;letter-spacing:0}
.section-title p{font-size:17px;line-height:1.8;color:var(--ink-2);margin:0}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card,.panel{
  background:linear-gradient(145deg,rgba(255,255,255,.80),rgba(255,255,255,.56));
  border:1px solid rgba(255,255,255,.78);
  border-radius:var(--radius);
  box-shadow:var(--shadow-soft);
  backdrop-filter:blur(18px) saturate(1.08);
}
.card{padding:24px}
.panel{padding:24px}
.card h3{font-size:23px;margin:0 0 10px;line-height:1.25}
.card p,.panel p{color:var(--ink-2);line-height:1.75;margin:0}
.feature-icon{width:54px;height:54px;border-radius:18px;display:grid;place-items:center;margin-bottom:16px;font-size:26px;background:var(--mint-2)}
.capability-card{min-height:420px;position:relative;overflow:hidden}
.capability-card h2{font-size:36px;line-height:1.18;margin:18px 0 12px;letter-spacing:0}
.capability-card .card-actions{margin-top:22px}
.mini-board{
  position:relative;
  height:150px;
  margin:22px 0 6px;
  border-radius:26px;
  overflow:hidden;
  border:1px solid rgba(128,161,171,.18);
  background:linear-gradient(145deg,#F9FFFC,#EEF7FF);
}
.mini-triangle{
  position:absolute;
  left:44px;
  top:26px;
  width:145px;
  height:96px;
  clip-path:polygon(50% 0,100% 100%,0 100%);
  background:linear-gradient(135deg,#DFF7EF,#E7F3FF);
  border:3px solid #173E52;
}
.mini-height{position:absolute;left:116px;top:27px;width:5px;height:96px;background:var(--orange);border-radius:999px}
.mini-ruler{
  position:absolute;
  right:56px;
  top:58px;
  width:150px;
  height:24px;
  border-radius:9px;
  background:#CDEFE4;
  border:3px solid #173E52;
  transform:rotate(-18deg);
}
.mini-board.game .mini-stick{
  position:absolute;
  width:178px;
  height:22px;
  border-radius:999px;
  border:3px solid #173E52;
}
.mini-stick.one{left:48px;top:93px;background:var(--mint)}
.mini-stick.two{left:198px;top:93px;background:var(--blue)}
.mini-stick.three{left:137px;top:42px;background:var(--yellow);transform:rotate(34deg)}

.resource-card{
  display:flex;
  flex-direction:column;
  gap:16px;
  min-height:344px;
  position:relative;
  overflow:hidden;
}
.resource-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.resource-cover{
  min-height:138px;
  border-radius:26px;
  background:
    linear-gradient(135deg,rgba(223,247,239,.86),rgba(231,243,255,.86)),
    repeating-linear-gradient(45deg,rgba(23,62,82,.05) 0 1px,transparent 1px 16px);
  border:1px solid rgba(128,161,171,.18);
  padding:18px;
  position:relative;
  overflow:hidden;
  display:grid;
  place-items:center;
}
.resource-meta{display:flex;gap:8px;flex-wrap:wrap}
.tag{
  font-size:12px;
  font-weight:950;
  color:var(--ink-2);
  border:1px solid rgba(128,161,171,.22);
  background:rgba(255,255,255,.72);
  border-radius:999px;
  padding:6px 10px;
}
.tag.purple{color:#6254A3;background:var(--purple-2);border-color:rgba(169,151,232,.30)}
.tag.locked{color:#8A611D;background:var(--yellow-2);border-color:rgba(255,204,92,.42)}
.tag.unlocked{color:#1D7464;background:#E5FBF2;border-color:rgba(113,215,193,.38)}
.card-actions{margin-top:auto;display:flex;gap:10px;align-items:center;flex-wrap:wrap}

.library-panel .resource-card{
  min-height:218px;
  gap:11px;
  padding:18px 18px 16px;
  border-radius:18px;
  background:
    linear-gradient(180deg,rgba(255,255,255,.94),rgba(247,253,250,.76)),
    linear-gradient(135deg,rgba(223,247,239,.56),rgba(231,243,255,.42));
  border-color:rgba(91,128,140,.18);
}
.library-panel .resource-card:before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:4px;
  background:linear-gradient(90deg,#40BFA8,#63AEEB,#FFE49C);
  opacity:.72;
}
.library-panel .resource-card:hover{
  transform:translateY(-2px);
  border-color:rgba(64,191,168,.32);
  box-shadow:0 18px 40px rgba(48,96,112,.15);
}
.resource-card-head{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
}
.resource-type{
  color:#27695F;
  font-size:12px;
  font-weight:950;
  border-radius:999px;
  padding:5px 9px;
  background:rgba(223,247,239,.74);
  border:1px solid rgba(113,215,193,.30);
}
.resource-state{
  color:#255F92;
  font-size:12px;
  font-weight:950;
  border-radius:999px;
  padding:5px 9px;
  background:rgba(231,243,255,.72);
  border:1px solid rgba(106,175,239,.26);
}
.library-panel .resource-card h3{
  margin:0;
  font-size:19px;
  line-height:1.32;
}
.library-panel .resource-card h3 span{
  background:linear-gradient(180deg,transparent 64%,rgba(255,228,156,.46) 64%);
}
.library-panel .resource-card p{
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  font-size:14px;
  line-height:1.58;
}
.resource-line{
  color:var(--muted);
  font-size:12px;
  font-weight:900;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.library-panel .card-actions{
  gap:8px;
}
.library-panel .card-actions .btn{
  min-height:40px;
  border-radius:15px;
  padding:0 14px;
  font-size:13px;
}

.cover-icon{
  position:relative;
  width:112px;
  height:92px;
  display:block;
}
.cover-icon:before,.cover-icon:after{content:"";position:absolute;display:block}
.icon-height:before{
  left:12px;top:6px;width:88px;height:76px;
  clip-path:polygon(50% 0,100% 100%,0 100%);
  background:linear-gradient(135deg,#CDEFE4,#DCEEFF);
  border:5px solid var(--ink);
}
.icon-height:after{left:54px;top:8px;width:6px;height:73px;background:var(--orange);border-radius:999px}
.icon-sticks:before,.icon-sticks:after{
  width:94px;height:14px;border-radius:999px;border:4px solid var(--ink);background:var(--mint);
}
.icon-sticks:before{left:2px;top:58px;box-shadow:34px -36px 0 -2px var(--yellow);transform:rotate(0deg)}
.icon-sticks:after{left:28px;top:34px;background:var(--blue);transform:rotate(34deg)}
.icon-angle:before{
  left:10px;top:8px;width:90px;height:72px;
  background:conic-gradient(from 210deg,var(--yellow) 0 55deg,transparent 55deg 360deg);
  border-radius:50%;
  border:5px solid var(--ink);
}
.icon-angle:after{left:18px;bottom:12px;width:86px;height:6px;background:var(--ink);border-radius:999px}
.icon-detective:before{
  left:16px;top:10px;width:80px;height:80px;border:5px solid var(--ink);border-radius:50%;
  background:linear-gradient(135deg,#F7FFF9,#E7F3FF);
}
.icon-detective:after{right:0;bottom:3px;width:48px;height:8px;border-radius:999px;background:var(--orange);transform:rotate(42deg)}
.icon-classify:before{left:8px;top:14px;width:38px;height:38px;background:var(--mint);clip-path:polygon(50% 0,100% 100%,0 100%);box-shadow:54px 6px 0 var(--yellow)}
.icon-classify:after{left:36px;bottom:4px;width:44px;height:44px;border-radius:14px;background:var(--blue);border:4px solid var(--ink)}
.icon-factory:before{
  left:5px;bottom:5px;width:102px;height:60px;background:linear-gradient(135deg,#DFF7EF,#E7F3FF);
  clip-path:polygon(0 40%,18% 40%,18% 20%,36% 40%,52% 40%,52% 12%,70% 40%,100% 40%,100% 100%,0 100%);
  border:5px solid var(--ink);
}
.icon-factory:after{left:20px;bottom:18px;width:14px;height:18px;background:var(--orange);box-shadow:26px 0 0 var(--orange),52px 0 0 var(--orange)}
.icon-trapezoid:before{
  left:8px;top:22px;width:96px;height:54px;background:linear-gradient(135deg,#E7F3FF,#FFF7DB);
  clip-path:polygon(20% 0,100% 0,80% 100%,0 100%);
  border:5px solid var(--ink);
}
.icon-trapezoid:after{left:56px;top:22px;width:6px;height:55px;background:var(--orange);border-radius:999px}
.icon-puzzle:before{left:8px;top:14px;width:42px;height:42px;background:var(--mint);clip-path:polygon(0 0,100% 0,100% 100%,0 100%);box-shadow:44px 0 0 var(--yellow),22px 42px 0 var(--blue),66px 42px 0 var(--purple)}
.icon-puzzle:after{left:50px;top:35px;width:16px;height:16px;border-radius:50%;background:var(--paper)}
.icon-route:before{left:6px;top:16px;width:100px;height:56px;border:6px dashed var(--ink);border-top-color:transparent;border-left-color:transparent;border-radius:40px;transform:rotate(-8deg)}
.icon-route:after{right:8px;top:8px;width:20px;height:20px;border-radius:50%;background:var(--orange);box-shadow:-74px 50px 0 var(--mint)}
.icon-simulator:before{left:15px;top:18px;width:86px;height:54px;border-radius:20px;background:#F7FFF9;border:5px solid var(--ink)}
.icon-simulator:after{left:34px;top:39px;width:12px;height:12px;border-radius:50%;background:var(--mint);box-shadow:23px 0 0 var(--blue),46px 0 0 var(--yellow)}

.steps{counter-reset:step;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{position:relative}
.step:before{
  counter-increment:step;
  content:counter(step);
  width:40px;
  height:40px;
  border-radius:15px;
  background:linear-gradient(135deg,var(--yellow),#FFD070);
  display:grid;
  place-items:center;
  font-weight:950;
  color:#76520D;
  margin-bottom:12px;
  box-shadow:var(--shadow-tiny);
}

.footer{
  background:linear-gradient(135deg,#173E52,#255D6E);
  color:white;
  margin-top:70px;
  padding:44px 0;
  border-radius:42px 42px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:24px}
.footer-grid-compact{grid-template-columns:1.4fr 1fr 1fr}
.footer a,.footer p{color:rgba(255,255,255,.78);line-height:1.8}
.footer h4{margin:0 0 14px}
.footer-filing{
  margin-top:28px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.14);
}
.footer-filing a{
  width:max-content;
  max-width:100%;
  min-height:42px;
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:0 16px;
  border-radius:999px;
  color:rgba(255,255,255,.88);
  font-size:13px;
  font-weight:900;
  line-height:1.4;
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.16);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.12);
  transition:transform .18s ease,background .18s ease,border-color .18s ease;
}
.footer-filing a:hover{
  transform:translateY(-1px);
  background:rgba(255,255,255,.16);
  border-color:rgba(255,255,255,.26);
}
.footer-filing-mark{
  width:10px;
  height:10px;
  border-radius:50%;
  background:linear-gradient(135deg,var(--mint),var(--yellow));
  box-shadow:0 0 0 4px rgba(113,215,193,.13);
}

.mobile-home-showcase{display:none}

.page-hero{padding:52px 0 28px}
.page-hero h1{font-size:48px}
.breadcrumb{font-weight:900;color:var(--muted);margin-bottom:12px}
.filters{display:grid;grid-template-columns:1.2fr repeat(4,1fr);gap:12px;margin-bottom:22px}
.filters-with-search{grid-template-columns:minmax(260px,1.4fr) repeat(4,minmax(116px,1fr)) auto;align-items:center}
.library-search-bar{
  display:grid;
  grid-template-columns:minmax(260px,1fr) auto;
  gap:12px;
  align-items:center;
  margin-bottom:18px;
}
.input,.select,.textarea{
  width:100%;
  border:1px solid rgba(124,156,166,.28);
  border-radius:18px;
  background:rgba(255,255,255,.82);
  min-height:52px;
  padding:0 15px;
  font-size:15px;
  font-weight:800;
  color:var(--ink);
  outline:none;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.66);
}
.textarea{min-height:150px;padding:15px;resize:vertical;line-height:1.7}
.input:focus,.select:focus,.textarea:focus{border-color:#71D7C1;box-shadow:0 0 0 4px rgba(113,215,193,.18)}
.search-btn{min-width:92px}
.tabs{display:flex;gap:10px;flex-wrap:wrap;margin:0 0 22px}
.tab{
  border:1px solid rgba(124,156,166,.24);
  background:rgba(255,255,255,.70);
  border-radius:999px;
  padding:12px 18px;
  font-weight:950;
  color:var(--ink-2);
  cursor:pointer;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.72);
}
.tab.active{background:#173E52;color:white;border-color:#173E52;box-shadow:0 12px 28px rgba(23,62,82,.20)}

.knowledge-board{
  margin:0 0 20px;
  padding:18px;
  border-radius:22px;
  background:
    linear-gradient(135deg,rgba(255,255,255,.88),rgba(247,253,250,.66)),
    repeating-linear-gradient(135deg,rgba(23,62,82,.035) 0 1px,transparent 1px 18px);
  border:1px solid rgba(124,156,166,.22);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.72);
}
.knowledge-board-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:14px;
}
.knowledge-board-head strong{
  font-size:18px;
  font-weight:950;
}
.knowledge-clear{
  border:0;
  color:#23695F;
  background:transparent;
  font-weight:950;
  cursor:pointer;
  padding:8px 0;
}
.knowledge-major-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:12px;
}
.knowledge-major{
  position:relative;
  overflow:hidden;
  min-height:92px;
  border:1px solid rgba(124,156,166,.22);
  border-radius:16px;
  padding:15px;
  text-align:left;
  cursor:pointer;
  color:var(--ink);
  background:rgba(255,255,255,.76);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.72);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.knowledge-major:before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  bottom:0;
  width:5px;
  background:#40BFA8;
}
.knowledge-major.blue:before{background:#63AEEB}
.knowledge-major.yellow:before{background:#F2B84B}
.knowledge-major.coral:before{background:#F59A62}
.knowledge-major span{
  display:block;
  position:relative;
  font-size:18px;
  font-weight:950;
  margin-bottom:8px;
}
.knowledge-major em{
  display:block;
  position:relative;
  color:var(--muted);
  font-size:12px;
  font-style:normal;
  font-weight:900;
  line-height:1.55;
}
.knowledge-major:hover,
.knowledge-major.active{
  transform:translateY(-2px);
  border-color:rgba(64,191,168,.36);
  box-shadow:0 16px 34px rgba(48,96,112,.14);
}
.knowledge-major.active{
  background:linear-gradient(135deg,#173E52,#245E70);
  color:white;
}
.knowledge-major.active em{color:rgba(255,255,255,.76)}
.knowledge-minor-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  min-height:46px;
  margin-top:14px;
  align-items:center;
}
.knowledge-minor{
  min-height:40px;
  border:1px solid rgba(124,156,166,.24);
  border-radius:999px;
  padding:0 15px;
  color:var(--ink-2);
  background:rgba(255,255,255,.82);
  font-weight:950;
  cursor:pointer;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.72);
}
.knowledge-minor.active{
  color:#173E52;
  background:var(--yellow);
  border-color:rgba(242,184,75,.46);
  box-shadow:0 10px 22px rgba(242,184,75,.18);
}
.knowledge-placeholder{
  color:var(--muted);
  font-size:14px;
  font-weight:900;
}

.library-workbench{padding:46px 0 74px}
.library-hero-strip{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:24px;
  margin-bottom:22px;
}
.library-hero-strip h1{font-size:46px;margin:16px 0 10px}
.library-hero-strip p{max-width:760px;color:var(--ink-2);font-size:18px;line-height:1.75;margin:0}
.library-panel{padding:24px}
.library-meta-row{display:flex;justify-content:space-between;align-items:center;gap:16px;margin:0 0 18px}
.library-empty{
  grid-column:1 / -1;
  min-height:180px;
  display:grid;
  place-items:center;
  border:1px dashed rgba(124,156,166,.36);
  border-radius:18px;
  color:var(--muted);
  font-weight:950;
  background:rgba(255,255,255,.62);
}
.grid-3.loading{
  opacity:.62;
}
.member-hint{
  min-width:220px;
  padding:18px;
  border-radius:24px;
  background:rgba(255,247,219,.72);
  border:1px solid rgba(255,204,92,.32);
  box-shadow:var(--shadow-tiny);
}
.member-hint strong{display:block;font-size:20px;margin-bottom:6px}
.member-hint span{display:block;color:#806123;font-weight:850;line-height:1.5}
.member-hint.unlocked{background:rgba(223,247,239,.76);border-color:rgba(113,215,193,.34)}
.member-hint.unlocked span{color:#1D7464}
.modal-mask{
  position:fixed;
  inset:0;
  z-index:100;
  display:grid;
  place-items:center;
  padding:24px;
  background:rgba(23,62,82,.34);
  backdrop-filter:blur(16px);
  opacity:0;
  transition:opacity .16s ease;
}
.modal-mask.show{opacity:1}
.modal-mask[hidden]{display:none}
.modal-card{
  position:relative;
  width:min(520px,100%);
  padding:30px;
  border-radius:32px;
  background:linear-gradient(145deg,rgba(255,255,255,.95),rgba(255,255,255,.76));
  border:1px solid rgba(255,255,255,.82);
  box-shadow:0 32px 90px rgba(13,50,66,.28);
  transform:translateY(10px) scale(.98);
  transition:transform .16s ease;
}
.modal-mask.show .modal-card{transform:translateY(0) scale(1)}
.modal-card h2{font-size:32px;margin:16px 0 12px}
.modal-card p{font-size:17px;line-height:1.8;color:var(--ink-2);margin:0}
.modal-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
.modal-close{
  position:absolute;
  right:18px;
  top:16px;
  width:38px;
  height:38px;
  border-radius:50%;
  border:1px solid rgba(124,156,166,.28);
  background:rgba(255,255,255,.72);
  cursor:pointer;
  font-size:22px;
  color:var(--ink);
}

.member-dashboard{padding:54px 0 76px}
.dashboard-hero{
  display:grid;
  grid-template-columns:1fr 330px;
  gap:24px;
  align-items:stretch;
  padding:32px;
  border-radius:38px;
  background:linear-gradient(145deg,rgba(255,255,255,.78),rgba(255,255,255,.50));
  border:1px solid rgba(255,255,255,.78);
  box-shadow:var(--shadow);
  backdrop-filter:blur(18px);
}
.dashboard-hero h1{font-size:46px;line-height:1.16}
.dashboard-user-badge{
  margin-bottom:18px;
}
.member-card{
  border-radius:30px;
  padding:24px;
  background:linear-gradient(145deg,#173E52,#2B6574);
  color:white;
  box-shadow:var(--shadow-soft);
}
.member-card strong{display:block;font-size:38px;margin:18px 0 8px}
.member-card p{color:rgba(255,255,255,.78);line-height:1.7;margin:0 0 18px}
.invite-form{
  margin-top:22px;
}
.invite-form .invite-row{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:12px;
}
.invite-form-dark{
  margin-top:24px;
}
.invite-form-dark .form-label{
  color:rgba(255,255,255,.86);
  margin-bottom:5px;
}
.invite-dark-hint{
  margin:0 0 12px!important;
  color:rgba(255,255,255,.62)!important;
  font-size:13px;
  line-height:1.6!important;
}
.invite-form-dark .invite-row{
  gap:14px;
}
.invite-form-dark .btn{
  width:100%;
}
.account-invite-form{
  max-width:620px;
  margin:28px auto 0;
}
.invite-guidance{
  display:flex;
  align-items:flex-start;
  gap:12px;
  margin-bottom:16px;
  padding:14px 16px;
  border-radius:18px;
  background:rgba(239,248,250,.82);
  border:1px solid rgba(124,156,166,.18);
}
.invite-guidance.is-extension{
  background:linear-gradient(135deg,rgba(235,250,244,.96),rgba(241,249,253,.9));
  border-color:rgba(64,191,168,.24);
}
.invite-guidance-mark{
  display:grid;
  place-items:center;
  width:30px;
  height:30px;
  flex:0 0 auto;
  border-radius:10px;
  color:#fff;
  background:#2B6574;
  font-size:22px;
  font-weight:800;
  line-height:1;
}
.invite-guidance.is-extension .invite-guidance-mark{
  background:#2E9B83;
}
.invite-guidance strong{
  display:block;
  margin:1px 0 4px;
  color:var(--ink);
  font-size:16px;
}
.invite-guidance p{
  margin:0;
  color:var(--muted);
  font-size:13px;
  font-weight:800;
  line-height:1.65;
}
.account-invite-form .form-label{
  width:min(100%,calc(360px + 14px + 118px));
  margin:0 auto 10px;
  text-align:left;
}
.account-invite-form .invite-row{
  grid-template-columns:minmax(240px,360px) auto;
  justify-content:center;
  align-items:center;
  gap:14px;
}
.dashboard-kpis{margin:22px 0 56px}
.member-lower-head{margin-top:42px}
.favorite-row{
  display:grid;
  grid-template-columns:auto 1fr auto;
  gap:16px;
  align-items:center;
}
.favorite-row strong{font-size:20px}
.favorite-row p{margin:6px 0 0}
.cover-dot{
  width:54px;
  height:54px;
  border-radius:18px;
  background:linear-gradient(135deg,var(--mint),var(--blue));
  box-shadow:var(--shadow-tiny);
}
.cover-dot.purple{background:linear-gradient(135deg,var(--purple),var(--orange))}

.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.price-card{position:relative;overflow:hidden}
.price-card.featured{border-color:rgba(113,215,193,.70);transform:translateY(-8px)}
.price{font-size:46px;font-weight:950;margin:12px 0;color:var(--ink)}
.price small{font-size:16px;color:var(--muted)}
.list{display:grid;gap:12px;margin:20px 0}
.list div{display:flex;gap:10px;align-items:flex-start;color:var(--ink-2);font-weight:800;line-height:1.55}
.check{
  width:22px;
  height:22px;
  border-radius:8px;
  background:#E6F8F2;
  color:#1E7C66;
  display:grid;
  place-items:center;
  font-weight:950;
  flex:0 0 auto;
}
.tool-layout{display:grid;grid-template-columns:1fr 340px;gap:22px;align-items:start}
.stage{
  min-height:590px;
  border-radius:36px;
  background:linear-gradient(180deg,rgba(255,255,255,.82),rgba(243,250,255,.72));
  border:1px solid rgba(255,255,255,.78);
  box-shadow:var(--shadow);
  padding:22px;
  position:relative;
  overflow:hidden;
  backdrop-filter:blur(18px);
}
.stage-toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px}
.stage-title{font-size:22px;font-weight:950}
.canvas-board{
  min-height:470px;
  border-radius:28px;
  background:rgba(255,255,255,.82);
  border:1px solid rgba(124,156,166,.22);
  display:grid;
  place-items:center;
  padding:18px;
  position:relative;
}
.tipbox{background:rgba(231,251,244,.78);border:1px solid rgba(113,215,193,.28);border-radius:24px;padding:18px;color:#27586A;line-height:1.75;font-weight:800}
.mode-list{display:grid;gap:12px}
.mode-item{border:1px solid rgba(124,156,166,.22);border-radius:22px;padding:16px;background:rgba(255,255,255,.68);cursor:pointer}
.mode-item.active{background:rgba(231,251,244,.82);border-color:rgba(113,215,193,.52)}
.mode-item strong{display:block;margin-bottom:6px}
.progress{height:12px;background:rgba(233,242,245,.72);border-radius:999px;overflow:hidden}
.progress i{display:block;height:100%;width:58%;background:linear-gradient(90deg,var(--mint),var(--blue));border-radius:999px}

.login-page{
  min-height:100svh;
  display:flex;
  flex-direction:column;
  overflow-x:hidden;
}
.login-page .nav{
  position:relative;
}
.login-page main{
  min-height:min(720px,calc(100svh - 82px - 112px));
  display:grid;
  align-items:center;
  flex:1 0 auto;
}
.login-section{
  width:100%;
  padding:30px 0 34px;
}
.login-box{
  max-width:980px;
  margin:0 auto;
  display:grid;
  grid-template-columns:minmax(0,1fr) 400px;
  gap:72px;
  align-items:center;
}
.login-intro{
  position:relative;
  padding:12px 0;
}
.login-intro:after{
  content:"";
  position:absolute;
  z-index:-1;
  left:-150px;
  top:-80px;
  width:430px;
  height:430px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(113,215,193,.2),rgba(113,215,193,0) 68%);
  filter:blur(4px);
}
.login-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  color:#237A68;
  font-size:14px;
  font-weight:950;
  letter-spacing:.08em;
}
.login-eyebrow i{
  width:8px;
  height:8px;
  border-radius:50%;
  background:#40BFA8;
  box-shadow:0 0 0 6px rgba(64,191,168,.13);
}
.login-intro h1{
  margin:22px 0 16px;
  font-size:50px;
  line-height:1.12;
  letter-spacing:-.04em;
}
.login-intro h1 em{
  color:#278F7C;
  font-style:normal;
}
.login-intro-copy{
  max-width:370px;
  margin:0;
  color:var(--ink-2);
  font-size:15px;
  font-weight:800;
  line-height:1.75;
}
/* 左侧用三项核心能力补充登录价值，同时控制信息密度 */
.login-benefits{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:10px;
  max-width:490px;
  margin-top:28px;
}
.login-benefit{
  min-width:0;
  padding:14px 12px;
  border-radius:18px;
  background:rgba(255,255,255,.62);
  border:1px solid rgba(255,255,255,.84);
  box-shadow:0 10px 28px rgba(48,96,112,.07);
}
.login-benefit-icon{
  width:30px;
  height:30px;
  display:grid;
  place-items:center;
  margin-bottom:9px;
  border-radius:10px;
  color:#216956;
  background:rgba(113,215,193,.27);
  font-size:14px;
  font-weight:950;
}
.login-benefit-icon-clock{color:#2C638C;background:rgba(106,175,239,.22)}
.login-benefit-icon-book{color:#8A641E;background:rgba(255,228,156,.4)}
.login-benefit strong,.login-benefit small{display:block}
.login-benefit strong{font-size:14px;line-height:1.4}
.login-benefit small{
  margin-top:4px;
  color:var(--muted);
  font-size:11px;
  font-weight:800;
  line-height:1.55;
}
.login-safe-note{
  display:flex;
  align-items:center;
  gap:7px;
  margin:18px 0 0;
  color:var(--muted);
  font-size:12px;
  font-weight:800;
}
.login-safe-note span{
  width:18px;
  height:18px;
  display:grid;
  place-items:center;
  border-radius:50%;
  color:#278F7C;
  background:rgba(113,215,193,.18);
  font-size:11px;
}
.login-panel{
  position:relative;
  min-height:470px;
  display:grid;
  grid-template-rows:auto 1fr;
  padding:22px 24px 18px;
  overflow:hidden;
  border-radius:30px;
  background:
    radial-gradient(circle at 100% 0,rgba(113,215,193,.18),transparent 32%),
    rgba(255,255,255,.86);
  border:1px solid rgba(255,255,255,.9);
  box-shadow:0 24px 64px rgba(48,96,112,.14),0 4px 16px rgba(48,96,112,.07);
  backdrop-filter:blur(22px);
}
.login-panel:before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  border-radius:inherit;
  box-shadow:inset 0 0 0 1px rgba(124,156,166,.12);
}
.login-panel-heading{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:12px;
  padding-bottom:16px;
  text-align:left;
  border-bottom:1px solid rgba(124,156,166,.16);
}
.login-panel-heading h2{
  margin:0 0 3px;
  font-size:20px;
  letter-spacing:-.02em;
}
.login-panel-heading p{margin:0;color:var(--muted);font-size:12px;font-weight:800}
.wechat-mark{
  display:block;
  width:40px;
  height:40px;
  flex:0 0 auto;
  border-radius:12px;
  object-fit:cover;
  box-shadow:0 10px 20px rgba(40,178,127,.2);
}
.wechat-login{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:10px;
  min-height:0;
  padding-top:12px;
}
/* 缩放并居中微信官方组件，兼顾二维码和客户端快捷登录两种状态 */
.qr-shell{
  width:304px;
  max-width:100%;
  height:318px;
  overflow:hidden;
  border-radius:18px;
  background:#fff;
  border:1px solid rgba(124,156,166,.15);
  box-shadow:0 10px 28px rgba(48,96,112,.07);
}
.qr{
  width:100%;
  height:100%;
  display:flex;
  align-items:center;
  justify-content:center;
}
.qr iframe{
  display:block;
  width:300px!important;
  max-width:300px;
  height:330px!important;
  margin:0 auto;
  border:0;
  transform:translateY(6px) scale(.9);
  transform-origin:center center;
}
.login-refresh{
  min-height:38px;
  padding:0 15px;
  border-radius:12px;
  color:#326173;
  background:rgba(241,248,248,.82);
  border:1px solid rgba(124,156,166,.2);
  box-shadow:none;
  font-size:13px;
}
.login-refresh:hover{
  transform:translateY(-1px);
  background:#fff;
  box-shadow:0 8px 18px rgba(48,96,112,.1);
}
.login-refresh span{font-size:17px;font-weight:700}
/* 登录页使用紧凑页脚，保留网站信息但避免拉长中间登录区域 */
.login-footer{
  flex:0 0 auto;
  margin-top:0;
  padding:20px 0;
  border-radius:28px 28px 0 0;
}
.login-footer-inner{
  min-height:44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.login-footer p{
  display:flex;
  align-items:baseline;
  gap:12px;
  margin:0;
}
.login-footer strong{color:#fff;font-size:16px}
.login-footer p span{color:rgba(255,255,255,.66);font-size:12px;font-weight:800}
.login-footer nav{display:flex;align-items:center;gap:20px}
.login-footer nav a,.login-footer nav span{
  color:rgba(255,255,255,.72);
  font-size:12px;
  font-weight:800;
}
.login-footer nav a:hover{color:#fff}
.pay-options{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.pay-option{border:2px solid rgba(124,156,166,.24);border-radius:24px;background:rgba(255,255,255,.70);padding:20px;cursor:pointer}
.pay-option.active{border-color:#71D7C1;background:rgba(231,251,244,.82)}
.pay-qr{
  height:210px;
  width:min(210px,100%);
  margin:22px auto 0;
  border-radius:28px;
  border:16px solid rgba(255,255,255,.86);
  box-shadow:var(--shadow-soft);
  display:grid;
  place-items:center;
  color:var(--ink);
  font-weight:950;
  background:
    linear-gradient(90deg,#173E52 10px,transparent 10px) 0 0/34px 34px,
    linear-gradient(#173E52 10px,transparent 10px) 0 0/34px 34px,
    linear-gradient(135deg,#fff,#E7F3FF);
}
.pay-qr span{background:white;border-radius:16px;padding:10px 14px;box-shadow:var(--shadow-tiny)}
.feedback-hero{padding-bottom:12px}
.feedback-hero .lead{margin-bottom:8px}
.feedback-section{padding-top:14px}
.feedback-grid{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:22px;align-items:start}
.feedback-form-panel{
  padding:28px;
  background:
    linear-gradient(145deg,rgba(255,255,255,.92),rgba(255,255,255,.68)),
    linear-gradient(135deg,rgba(223,247,239,.52),rgba(231,243,255,.46));
}
.feedback-form-panel h2,
.feedback-aside h2{
  margin:0 0 8px;
  font-size:28px;
  line-height:1.22;
  letter-spacing:0;
}
.feedback-form-panel .panel-desc{
  margin:0 0 22px;
  color:var(--muted);
  font-size:15px;
  font-weight:800;
  line-height:1.65;
}
.feedback-form{
  gap:14px;
  height:auto;
  min-height:0;
}
.feedback-form .textarea{min-height:168px}
.feedback-submit{
  width:fit-content;
  min-width:160px;
  margin-top:4px;
}
.form-label-optional{
  margin-left:4px;
  color:var(--muted);
  font-weight:800;
}
.feedback-aside{
  padding:28px;
  background:
    radial-gradient(circle at 92% 13%,rgba(255,228,156,.42) 0 68px,transparent 69px),
    linear-gradient(145deg,rgba(255,255,255,.88),rgba(245,253,249,.62));
}
.feedback-aside .list{margin-top:8px}
.feedback-aside .tipbox{margin-top:18px}
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.kpi{background:rgba(255,255,255,.76);border:1px solid rgba(255,255,255,.76);border-radius:24px;padding:18px;box-shadow:var(--shadow-tiny)}
.kpi strong{font-size:28px;display:block}
.account-profile-panel{
  display:grid;
  gap:22px;
  min-height:100%;
}
.account-profile-head{
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  gap:18px;
  align-items:center;
}
.account-avatar{
  width:78px;
  height:78px;
  display:grid;
  place-items:center;
  border-radius:26px;
  color:white;
  font-size:36px;
  font-weight:950;
  background:linear-gradient(135deg,var(--mint),var(--blue));
  box-shadow:0 18px 34px rgba(83,165,207,.22);
}
.account-profile-main h2{
  margin:16px 0 8px;
  font-size:28px;
  line-height:1.2;
}
.account-profile-main{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
}
.account-profile-main .badge{
  align-self:flex-start;
}
.account-profile-main p{
  max-width:540px;
  font-weight:800;
}
.account-status-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  padding:14px 16px;
  border-radius:22px;
  background:linear-gradient(135deg,rgba(231,251,244,.78),rgba(231,243,255,.62));
  border:1px solid rgba(113,215,193,.24);
}
.account-status-row span,
.account-status-row em{
  color:var(--muted);
  font-style:normal;
  font-weight:850;
}
.account-status-row strong{
  color:#1D7464;
  font-weight:950;
}
.account-kpis{
  grid-template-columns:repeat(3,1fr);
}
.mobile-menu{display:none}

body[data-beta="false"] [data-beta-only]{display:none!important}

.beta-apply-page{
  min-height:100vh;
  display:flex;
  flex-direction:column;
}
.beta-apply-page .nav{
  flex:0 0 auto;
}
.beta-apply-logo-only{
  justify-content:flex-start;
}
.beta-apply-shell{
  flex:1 0 auto;
  min-height:calc(100vh - 82px - 292px);
  display:grid;
  place-items:center;
  padding:48px 24px;
}
.beta-apply-card{
  width:min(980px,100%);
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:28px;
  align-items:stretch;
  padding:30px;
  border-radius:34px;
  background:
    linear-gradient(145deg,rgba(255,255,255,.92),rgba(255,255,255,.66)),
    linear-gradient(135deg,rgba(223,247,239,.56),rgba(231,243,255,.42));
  border:1px solid rgba(255,255,255,.82);
  box-shadow:var(--shadow);
  backdrop-filter:blur(18px);
}
.beta-apply-copy{
  display:flex;
  flex-direction:column;
  justify-content:center;
  min-width:0;
  padding:14px 6px;
}
/* 申请页状态徽章保持紧凑，避免在纵向弹性容器中被拉伸 */
.beta-apply-status{
  align-self:flex-start;
  gap:8px;
  padding:7px 12px 7px 9px;
  background:linear-gradient(135deg,rgba(231,243,255,.94),rgba(238,250,247,.92));
  border-color:rgba(86,164,210,.28);
  box-shadow:0 8px 20px rgba(73,139,174,.12),inset 0 1px 0 rgba(255,255,255,.82);
  letter-spacing:.04em;
}
.beta-apply-status::before{
  content:"";
  width:8px;
  height:8px;
  flex:0 0 auto;
  border-radius:50%;
  background:#63AEEB;
  box-shadow:0 0 0 4px rgba(106,175,239,.16);
}
.beta-apply-copy h1{
  margin:18px 0 14px;
  font-size:48px;
  line-height:1.14;
  letter-spacing:0;
}
.beta-apply-lead{
  max-width:560px;
  margin:0;
  color:var(--ink-2);
  font-size:19px;
  font-weight:850;
  line-height:1.8;
}
.beta-apply-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:30px;
}
.beta-apply-qr-panel{
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:20px;
  min-height:330px;
  padding:26px 22px 28px;
  overflow:hidden;
  border-radius:28px;
  background:linear-gradient(155deg,rgba(255,255,255,.94),rgba(248,253,255,.78));
  border:1px solid rgba(122,163,174,.24);
  box-shadow:0 18px 42px rgba(55,104,122,.12),inset 0 1px 0 rgba(255,255,255,.92);
  text-align:center;
}
.beta-apply-qr-panel::before{
  content:"";
  position:absolute;
  top:-70px;
  right:-54px;
  width:170px;
  height:170px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(71,198,185,.15),rgba(71,198,185,0) 70%);
  pointer-events:none;
}
.beta-apply-qr-panel strong{
  position:relative;
  font-size:20px;
  line-height:1.35;
  letter-spacing:.04em;
}
.beta-apply-qr-frame{
  position:relative;
  width:min(232px,100%);
  aspect-ratio:1;
  padding:10px;
  border-radius:25px;
  background:#fff;
  border:1px solid rgba(116,157,169,.18);
  box-shadow:0 18px 38px rgba(38,91,108,.15),0 4px 12px rgba(38,91,108,.08);
}
.beta-apply-qr{
  display:block;
  width:100%;
  height:100%;
  border-radius:17px;
  object-fit:contain;
}
.beta-apply-qr-frame[hidden],
.beta-apply-qr[hidden]{
  display:none;
}

@media (max-width: 1100px){
  .filters-with-search{grid-template-columns:1fr 1fr 1fr}
  .knowledge-major-grid{grid-template-columns:1fr 1fr}
  .search-btn{width:100%}
  .login-box{grid-template-columns:.95fr 400px;gap:44px}
}
@media (max-width: 980px){
  .hero-grid,.grid-2,.grid-3,.grid-4,.pricing,.tool-layout,.login-box,.feedback-grid,.footer-grid,.dashboard-hero,.beta-apply-card{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  h1{font-size:46px}
  .section-title h2{font-size:34px}
  .filters{grid-template-columns:1fr 1fr}
  .filters-with-search{grid-template-columns:1fr 1fr}
  .nav-links{display:none}
  .mobile-menu{display:inline-flex}
  .mobile-nav-open .nav-links{display:flex;position:absolute;left:24px;right:24px;top:76px;padding:14px;border-radius:24px;background:rgba(255,255,255,.92);box-shadow:var(--shadow-soft);flex-wrap:wrap}
  .library-hero-strip{align-items:stretch;flex-direction:column}
  .login-box{max-width:440px}
  .login-intro{display:none}
  .login-panel{height:auto;min-height:auto}
  .login-page main{min-height:calc(100svh - 82px - 112px)}
  .beta-apply-card{max-width:680px}
  .beta-apply-qr-panel{min-height:auto}
}
@media (max-width: 640px){
  .container{width:min(100% - 28px,1180px)}
  .home-page{
    background:
      radial-gradient(circle at 18% 4%,rgba(255,228,156,.46),transparent 28%),
      radial-gradient(circle at 88% 10%,rgba(106,175,239,.35),transparent 30%),
      linear-gradient(180deg,#f8fff8 0%,#edf8ff 50%,#fffaf0 100%);
  }
  .home-page .hero,
  .home-page main > .section{display:none}
  .home-page .nav{
    background:rgba(250,255,250,.86);
    border-bottom:1px solid rgba(124,156,166,.16);
    box-shadow:0 10px 28px rgba(48,96,112,.09);
  }
  .home-page .nav-inner{
    min-height:76px;
    padding:10px 0;
  }
  .home-page .logo-brand{
    min-height:56px;
    padding:5px 0;
  }
  .home-page .logo-brand:before{
    inset:2px -6px;
    border-radius:20px;
    background:radial-gradient(ellipse at 46% 50%,rgba(255,255,255,.72) 0%,rgba(247,251,246,.30) 58%,rgba(247,251,246,0) 82%);
  }
  .home-page .logo-brand img{width:min(204px,55vw)}
  .home-page .nav-actions .btn-primary{
    min-height:38px;
    padding:0 12px;
    border-radius:14px;
    font-size:13px;
  }
  .home-page .mobile-menu{display:none}
  .mobile-home-showcase{
    display:block;
    min-height:calc(100svh - 76px);
    padding:16px 0 26px;
    overflow:hidden;
  }
  .mobile-home-shell{
    width:min(100% - 24px,430px);
    margin:0 auto;
  }
  .mobile-hero-copy{
    padding:6px 4px 14px;
  }
  .mobile-kicker{
    display:inline-flex;
    align-items:center;
    min-height:30px;
    padding:0 11px;
    border-radius:999px;
    color:#206f63;
    font-size:12px;
    font-weight:950;
    background:rgba(223,247,239,.82);
    border:1px solid rgba(113,215,193,.34);
  }
  .mobile-hero-copy h1{
    margin:14px 0 2px;
    color:#153e51;
    font-size:clamp(28px,8.1vw,31px);
    line-height:1.12;
    letter-spacing:0;
  }
  .mobile-hero-copy h1 span{
    white-space:nowrap;
    color:transparent;
    background:linear-gradient(110deg,#168a78 0%,#297ccc 58%,#8f73d5 100%);
    -webkit-background-clip:text;
    background-clip:text;
  }
  .mobile-tool-card{
    position:relative;
    padding:13px;
    border-radius:30px;
    overflow:hidden;
    touch-action:pan-y;
    background:
      linear-gradient(145deg,rgba(255,255,255,.86),rgba(255,255,255,.58)),
      linear-gradient(135deg,rgba(113,215,193,.20),rgba(106,175,239,.18),rgba(255,228,156,.22));
    border:1px solid rgba(255,255,255,.84);
    box-shadow:0 24px 54px rgba(48,96,112,.16),inset 0 1px 0 rgba(255,255,255,.86);
    backdrop-filter:blur(18px) saturate(1.1);
  }
  .mobile-tool-card:before{
    content:"";
    position:absolute;
    inset:0;
    pointer-events:none;
    background:
      linear-gradient(120deg,rgba(255,255,255,.48),transparent 38%),
      repeating-linear-gradient(90deg,rgba(23,62,82,.035) 0 1px,transparent 1px 34px);
  }
  .mobile-tool-head{
    position:relative;
    z-index:1;
    display:flex;
    align-items:flex-start;
    justify-content:space-between;
    gap:10px;
    padding:4px 4px 12px;
  }
  .mobile-tool-card.is-recommend .mobile-tool-head{display:none}
  .mobile-tool-head h2{
    margin:0;
    color:#173e52;
    font-size:19px;
    line-height:1.22;
    letter-spacing:0;
  }
  .mobile-swipe-hint{
    flex:0 0 auto;
    margin-top:2px;
    padding:6px 8px;
    border-radius:999px;
    color:#617d88;
    font-size:11px;
    font-weight:950;
    background:rgba(255,255,255,.66);
    border:1px solid rgba(124,156,166,.16);
  }
  .mobile-tool-stage{
    position:relative;
    z-index:1;
    min-height:392px;
    border-radius:24px;
    overflow:hidden;
    will-change:transform,opacity;
    background:linear-gradient(150deg,#fafffc 0%,#eef8ff 52%,#fff7dc 100%);
    border:1px solid rgba(124,156,166,.16);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.82);
    transition:transform .22s cubic-bezier(.2,.82,.22,1),opacity .18s ease;
  }
  .mobile-tool-stage[hidden]{display:none!important}
  .mobile-tool-card.is-dragging .mobile-tool-stage.is-active{
    transform:translate3d(var(--mobile-drag-x,0),0,0) scale(.992);
    transition:none;
  }
  .mobile-tool-card.slide-next .mobile-tool-stage.is-active{
    animation:mobileStageSlideNext .24s cubic-bezier(.2,.82,.22,1) both;
  }
  .mobile-tool-card.slide-prev .mobile-tool-stage.is-active{
    animation:mobileStageSlidePrev .24s cubic-bezier(.2,.82,.22,1) both;
  }
  @keyframes mobileStageSlideNext{
    from{opacity:.62;transform:translate3d(26px,0,0) scale(.985)}
    to{opacity:1;transform:translate3d(0,0,0) scale(1)}
  }
  @keyframes mobileStageSlidePrev{
    from{opacity:.62;transform:translate3d(-26px,0,0) scale(.985)}
    to{opacity:1;transform:translate3d(0,0,0) scale(1)}
  }
  .mobile-stage-caption{
    position:absolute;
    left:14px;
    right:14px;
    top:12px;
    z-index:3;
    min-height:34px;
    padding:8px 11px;
    border-radius:14px;
    color:#2d5f71;
    font-size:12px;
    font-weight:950;
    line-height:1.45;
    background:rgba(255,255,255,.76);
    border:1px solid rgba(255,255,255,.84);
    box-shadow:0 8px 18px rgba(48,96,112,.08);
    backdrop-filter:blur(10px);
  }
  .mobile-triangle-stage{
    width:100%;
    height:100%;
    min-height:392px;
    touch-action:none;
  }
  .mobile-base-line{
    stroke:#206174;
    stroke-width:9;
    stroke-linecap:round;
  }
  .mobile-height-line{
    stroke:#f47c38;
    stroke-width:7;
    stroke-linecap:round;
    stroke-dasharray:12 10;
  }
  .mobile-right-mark{
    fill:none;
    stroke:#173e52;
    stroke-width:4;
    stroke-linecap:round;
    stroke-linejoin:round;
  }
  .mobile-triangle-shape{
    fill:url(#mobileTriangleFill);
    stroke:#173e52;
    stroke-width:5;
    stroke-linejoin:round;
  }
  .mobile-svg-word{
    fill:#236174;
    font-size:20px;
    font-weight:950;
  }
  .mobile-svg-word.warm{fill:#e66c2d}
  .mobile-drag-point{
    fill:#fffdf5;
    stroke:#40bfa8;
    stroke-width:6;
    filter:drop-shadow(0 5px 8px rgba(48,96,112,.14));
    cursor:grab;
  }
  .mobile-painted-cube-stage{
    display:flex;
    align-items:center;
    justify-content:center;
    min-height:318px;
    padding:58px 0 62px;
    touch-action:none;
    perspective:760px;
  }
  .mobile-cube-scene{
    flex:1;
    width:100%;
    display:flex;
    align-items:center;
    justify-content:center;
    transform-style:preserve-3d;
  }
  .mobile-cube-stack{
    position:relative;
    width:0;
    height:0;
    transform-style:preserve-3d;
    transform:rotateX(var(--cube-x,-26deg)) rotateY(var(--cube-y,-34deg)) translate3d(var(--cube-shift-x,4px),var(--cube-shift-y,14px),0);
    transition:transform .08s linear;
  }
  .mobile-cubie{
    position:absolute;
    left:0;
    top:0;
    width:38px;
    height:38px;
    margin-left:-19px;
    margin-top:-19px;
    border-radius:9px;
    transform-style:preserve-3d;
    transform:translate3d(var(--x),var(--y),var(--z));
  }
  .mobile-cubie span{
    position:absolute;
    inset:0;
    border-radius:8px;
    border:1px solid rgba(23,62,82,.16);
    background:linear-gradient(145deg,var(--tone),rgba(255,255,255,.64));
    box-shadow:inset 0 1px 0 rgba(255,255,255,.82),0 8px 14px rgba(48,96,112,.10);
  }
  .mobile-cubie .front{transform:translateZ(19px)}
  .mobile-cubie .back{transform:rotateY(180deg) translateZ(19px)}
  .mobile-cubie .right{transform:rotateY(90deg) translateZ(19px)}
  .mobile-cubie .left{transform:rotateY(-90deg) translateZ(19px)}
  .mobile-cubie .top{transform:rotateX(90deg) translateZ(19px)}
  .mobile-cubie .bottom{transform:rotateX(-90deg) translateZ(19px)}
  .mobile-stage-controls{
    position:absolute;
    left:16px;
    right:16px;
    bottom:16px;
    z-index:4;
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:8px;
  }
  .mobile-stage-controls button,
  .mobile-showcase-dots button{
    border:0;
    cursor:pointer;
  }
  .mobile-stage-controls button{
    min-height:38px;
    border-radius:14px;
    color:#315e70;
    font-size:13px;
    font-weight:950;
    background:rgba(255,255,255,.72);
    border:1px solid rgba(124,156,166,.18);
  }
  .mobile-stage-controls button.active{
    color:white;
    background:linear-gradient(135deg,#40bfa8,#63aeeb);
    box-shadow:0 10px 20px rgba(83,165,207,.20);
  }
  .mobile-net-stage{
    display:grid;
    grid-template-rows:1fr auto;
    min-height:392px;
    padding:58px 18px 20px;
  }
  .mobile-fold-scene{
    display:grid;
    place-items:center;
    perspective:760px;
    transform-style:preserve-3d;
  }
  .mobile-fold-paper{
    position:relative;
    width:210px;
    height:240px;
    transform-style:preserve-3d;
    transform:rotateX(58deg) rotateZ(-20deg);
  }
  .mobile-net-face{
    position:absolute;
    width:54px;
    height:54px;
    display:grid;
    place-items:center;
    border-radius:10px;
    color:#173e52;
    font-size:18px;
    font-weight:950;
    background:linear-gradient(145deg,#fffdf5,#dff7ef);
    border:2px solid rgba(23,62,82,.24);
    box-shadow:0 8px 16px rgba(48,96,112,.10);
    transform-origin:50% 50%;
    transition:transform .08s linear,background .18s ease;
  }
  .mobile-net-face.face-a{left:78px;top:78px;background:linear-gradient(145deg,#ffe49c,#fff7db)}
  .mobile-net-face.face-b{left:24px;top:78px;transform-origin:100% 50%}
  .mobile-net-face.face-c{left:132px;top:78px;transform-origin:0 50%}
  .mobile-net-face.face-d{left:78px;top:24px;transform-origin:50% 100%}
  .mobile-net-face.face-e{
    left:78px;
    top:132px;
    transform-origin:50% 0;
    transform-style:preserve-3d;
    overflow:visible;
  }
  .mobile-net-face.face-f{
    left:0;
    top:100%;
    transform-origin:50% 0;
    transform-style:preserve-3d;
    backface-visibility:visible;
  }
  .mobile-fold-range{
    width:100%;
    accent-color:#40bfa8;
  }
  .mobile-recommend-stage{
    display:flex;
    flex-direction:column;
    align-items:flex-start;
    justify-content:center;
    gap:14px;
    min-height:442px;
    padding:30px 24px;
    background:
      linear-gradient(145deg,rgba(23,62,82,.96),rgba(37,93,110,.94)),
      radial-gradient(circle at 20% 20%,rgba(113,215,193,.36),transparent 34%);
  }
  .mobile-recommend-stage h2{
    margin:0;
    color:white;
    font-size:25px;
    line-height:1.24;
    letter-spacing:0;
  }
  .mobile-recommend-stage p{
    margin:0;
    color:rgba(255,255,255,.76);
    font-size:14px;
    font-weight:800;
    line-height:1.72;
  }
  .mobile-showcase-dots{
    position:relative;
    z-index:2;
    display:flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:14px 0 2px;
  }
  .mobile-showcase-dots button{
    width:8px;
    height:8px;
    padding:0;
    border-radius:999px;
    background:rgba(91,125,138,.26);
    transition:.2s ease;
  }
  .mobile-showcase-dots button.active{
    width:26px;
    background:#40bfa8;
  }
  .login-page .container{width:calc(100vw - 44px);max-width:calc(100vw - 44px)}
  .nav-inner{height:auto;min-height:72px;padding:12px 0;align-items:center}
  .logo img{width:174px}
  .logo-brand{min-height:48px;padding:6px 7px;border-radius:0}
  .logo-brand:before{inset:4px 0;border-radius:18px}
  .logo-brand img{width:128px}
  .nav-actions{gap:8px}
  .btn{padding:0 13px;min-height:44px}
  .hero{padding:42px 0}
  .hero-grid{gap:24px}
  h1{font-size:38px}
  .hero h1 .mark{font-size:1em;white-space:normal}
  .lead{font-size:17px}
  .stats,.steps,.filters,.filters-with-search,.pay-options,.kpi-grid{grid-template-columns:1fr}
  .library-search-bar,.knowledge-major-grid{grid-template-columns:1fr}
  .knowledge-board{padding:14px;border-radius:18px}
  .knowledge-board-head{align-items:flex-start;flex-direction:column}
  .page-hero h1,.library-hero-strip h1,.dashboard-hero h1{font-size:36px}
  .stage{min-height:auto}
  .canvas-board{min-height:360px}
  .cta-arrow{display:none}
  .favorite-row{grid-template-columns:1fr}
  .login-page main{min-height:auto}
  .login-section{padding:24px 0 30px}
  .login-box{min-width:0}
  .login-panel{min-width:0;max-width:100%;padding:20px 16px 18px;border-radius:24px}
  .login-panel-heading{padding:0 4px 14px}
  .qr-shell{width:292px;max-width:100%;height:306px;border-radius:16px}
  .qr iframe{max-width:100%}
  .login-page .nav-actions>a[href="login.html"]{display:none}
  .login-footer{padding:18px 0}
  .login-footer-inner,.login-footer p{align-items:center;flex-direction:column;text-align:center}
  .login-footer-inner{gap:12px}
  .login-footer p{gap:3px}
  .login-footer nav{gap:14px;flex-wrap:wrap;justify-content:center}
  .home-page .footer{
    margin-top:0;
    padding:28px 0 30px;
    border-radius:28px 28px 0 0;
  }
  .home-page .footer-grid{
    display:none;
  }
  .home-page .footer-filing{
    margin-top:0;
    padding-top:0;
    border-top:0;
    text-align:center;
  }
  .home-page .footer-filing a{
    width:100%;
    justify-content:center;
    white-space:normal;
  }
  .account-profile-head{grid-template-columns:1fr}
  .account-kpis{grid-template-columns:1fr}
  .account-invite-form .invite-row{grid-template-columns:1fr}
  .account-invite-form .form-label{width:100%}
  .account-invite-form .btn{width:100%}
  .beta-apply-shell{padding:24px 14px}
  .beta-apply-card{gap:20px;padding:20px;border-radius:26px}
  .beta-apply-copy{padding:0}
  .beta-apply-copy h1{font-size:34px}
  .beta-apply-lead{font-size:16px}
  .beta-apply-actions{display:grid;grid-template-columns:1fr;gap:10px;margin-top:22px}
  .beta-apply-actions .btn{width:100%}
  .beta-apply-qr-panel{min-height:300px;padding:22px 18px 24px;border-radius:22px}
  .beta-apply-qr-frame{width:min(220px,100%)}
}

.presentation-mode .nav,.presentation-mode .footer,.presentation-mode .side-panel{display:none!important}
.presentation-mode .container{width:100%;max-width:1440px}
.presentation-mode .stage{border-radius:0;min-height:100vh}