/* GreenGrass 2.0.0 · www 站样式（顶栏/底栏为全站共同部分） */
:root{
  --blue:#0071e3;
  --text:#1d1d1f;
  --text-2:#6e6e73;
  --bg:#ffffff;
  --panel:#f5f5f7;
  --line:#d2d2d7;
  --bar-bg:rgba(251,251,253,.8);
  --bar-line:rgba(0,0,0,.1);
  --flyout-bg:#fafafc;
}
@media (prefers-color-scheme: dark){
  :root{
    --text:#f5f5f7;
    --text-2:#86868b;
    --bg:#000000;
    --panel:#161617;
    --line:#38383d;
    --bar-bg:rgba(29,29,31,.8);
    --bar-line:rgba(255,255,255,.12);
    --flyout-bg:#161617;
  }
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"SF Pro SC","PingFang SC","Helvetica Neue",Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--blue);text-decoration:none}

/* ================= 顶栏 ================= */
#nav{position:sticky;top:0;z-index:100;background:var(--bar-bg);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--bar-line)}

/* 顶栏颜色与页面第一个区块统一：深色页 body 加 nav-dark（柔和黑实色），浅灰页加 nav-panel（panel 灰），默认白色 */
body.nav-dark #nav{--text:#f5f5f7;--text-2:#86868b;--bar-bg:#1d1d1f;--bar-line:rgba(255,255,255,.14);--flyout-bg:#1d1d1f}
body.nav-panel #nav{--bar-bg:var(--panel);--bar-line:var(--line);--flyout-bg:var(--panel)}
body.nav-dark #nav,body.nav-panel #nav{border-bottom-color:transparent}
/* 同色无缝只在首屏：滚动后补回底线 */
body.scrolled #nav{border-bottom-color:var(--bar-line)}
/* 深色首页的第一个广告贴住顶栏，不留白缝 */
#nav + .promo{margin-top:0}

.nav-inner{position:relative;max-width:1024px;margin:0 auto;padding:0 22px;height:48px;display:flex;align-items:center}

.logo{display:flex;align-items:center;gap:7px;font-weight:700;font-size:16px;letter-spacing:-.02em;color:var(--text);white-space:nowrap}
.logo-img{width:20px;height:20px;border-radius:5px;object-fit:cover;display:block}

.links{position:absolute;left:50%;transform:translateX(-50%);display:flex;gap:2px}
.links a{font-size:12px;font-weight:400;letter-spacing:.01em;color:var(--text);opacity:.8;padding:5px 12px;border-radius:6px;white-space:nowrap;transition:opacity .15s}
.links a:hover{opacity:1}
.links a.on{opacity:1;font-weight:600}

.nav-right{margin-left:auto;display:flex;align-items:center}
.search-btn{width:28px;height:28px;border:0;background:none;color:var(--text);cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:.8}
.search-btn:hover{opacity:1}

.logo,.links{transition:opacity .22s ease,transform .22s ease}
#nav.searching .logo,#nav.searching .links{opacity:0;transform:scale(.96);pointer-events:none}

.expand{position:absolute;top:100%;left:0;right:0;overflow:hidden;max-height:0;opacity:0;background:var(--flyout-bg);border-bottom:1px solid transparent;transition:max-height .32s cubic-bezier(.4,0,.6,1),opacity .22s ease,border-color .32s ease}
#nav.expanded .expand{max-height:480px;opacity:1;border-bottom-color:var(--bar-line)}
.expand-inner{max-width:1024px;margin:0 auto;padding:44px 22px 84px}
.expand-title{font-size:12px;color:var(--text-2);margin-bottom:18px}

.expand-cols{display:flex;gap:88px}
.expand-big{display:flex;flex-direction:column}
.expand-big a{font-size:24px;font-weight:600;line-height:1.3;color:var(--text);padding:7px 0;opacity:0;transform:translateY(-8px);transition:opacity .32s cubic-bezier(.4,0,.6,1),transform .32s cubic-bezier(.4,0,.6,1)}
.expand-big a:hover{color:var(--blue)}
.expand-side{display:flex;gap:56px;flex-shrink:0}
.expand-group .t{font-size:12px;color:var(--text-2);margin-bottom:10px}
.expand-group a{display:block;font-size:12px;color:var(--text);padding:4px 0;opacity:0;transform:translateY(-8px);transition:opacity .32s cubic-bezier(.4,0,.6,1),transform .32s cubic-bezier(.4,0,.6,1)}
.expand-group a:hover{color:var(--blue)}
.expand-big sup{font-size:.5em;font-weight:400}
#nav.expanded .expand-big a,#nav.expanded .expand-group a{opacity:1;transform:none}
#nav.expanded .expand-big a:nth-child(1){transition-delay:.09s}
#nav.expanded .expand-big a:nth-child(2){transition-delay:.11s}
#nav.expanded .expand-big a:nth-child(3){transition-delay:.13s}
#nav.expanded .expand-big a:nth-child(4){transition-delay:.15s}
#nav.expanded .expand-big a:nth-child(5){transition-delay:.17s}
#nav.expanded .expand-big a:nth-child(6){transition-delay:.19s}
#nav.expanded .expand-big a:nth-child(7){transition-delay:.21s}
#nav.expanded .expand-group a{transition-delay:.13s}

.searchform{display:flex;align-items:center;gap:10px;margin:0 0 30px}
.searchform .sic{color:var(--text-2);display:flex;flex-shrink:0}
.searchform input{flex:1;border:0;background:transparent;font-size:28px;font-weight:500;color:var(--text);outline:none;padding:6px 0}
.searchform input::placeholder{color:var(--text-2)}
.searchform .sclose{border:0;background:none;color:var(--text-2);font-size:15px;cursor:pointer;padding:6px;flex-shrink:0}
.searchform .sclose:hover{color:var(--text)}
.quick-list{display:flex;flex-direction:column}
.quick-list a{font-size:12px;color:var(--text);padding:4px 0}
.quick-list a:hover{color:var(--blue)}

body.curtain::after{content:"";position:fixed;inset:0;z-index:90;background:rgba(0,0,0,.32);animation:fadeIn .25s ease}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}

/* ================= 底栏 ================= */
#footer{margin-top:64px;background:var(--panel);border-top:1px solid var(--line)}
.foot-cols{max-width:980px;margin:0 auto;padding:36px 22px 8px;display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:16px}
.foot-cols .t{font-size:12px;font-weight:600;color:var(--text-2);margin-bottom:8px}
.foot-cols a{display:block;font-size:13px;color:var(--text);opacity:.8;padding:3px 0}
.foot-cols a:hover{opacity:1;color:var(--blue)}
.foot-base{max-width:980px;margin:20px auto 0;padding:18px 22px 40px;color:var(--text-2);font-size:12.5px;border-top:1px solid var(--line)}

/* ================= 本页内容 ================= */
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* 宣传区块：一屏一个产品，大标题 + 链接 + 原创视觉 */
.promo{margin-top:12px;text-align:center;padding:72px 22px 0;overflow:hidden}
body > .promo:first-of-type{margin-top:0}/* 第一个广告贴住顶栏，连成一体 */
.promo h2{font-size:40px;font-weight:700;letter-spacing:-.8px}
.promo-sub{margin-top:10px;font-size:19px;opacity:.85}
.promo-links{margin-top:14px;display:flex;gap:28px;justify-content:center;font-size:17px}
.promo-links a:hover{text-decoration:underline}
.promo-dark{background:#1d1d1f;color:#f5f5f7}
.promo-dark a{color:#2997ff}
.promo-light{background:var(--panel);color:var(--text)}

/* ---- 原创 CSS 视觉（纯样式绘制，不用图片） ---- */
.art{max-width:760px;margin:44px auto 56px}

/* Pay 1：三张卡扇形叠放 */
.cards{position:relative;height:300px}
.pcard{position:absolute;left:50%;top:50%;width:300px;height:190px;border-radius:20px;padding:20px 22px;color:#fff;text-align:left;display:flex;flex-direction:column;box-shadow:0 18px 44px rgba(0,0,0,.35)}
.pcard b{font-size:15px;font-weight:600}
.chip{width:34px;height:25px;border-radius:6px;background:linear-gradient(135deg,#ecc96b,#c9a227);margin-top:16px}
.pcard-green{background:linear-gradient(135deg,#0f5c34,#15803d 55%,#22a35a);transform:translate(-96%,-50%) rotate(-8deg)}
.pcard-red{background:linear-gradient(135deg,#8c1d18,#c0392b 55%,#e05a3a);transform:translate(-50%,-58%) rotate(2deg)}
.pcard-purple{background:linear-gradient(135deg,#2b1a4e,#5b2a86 55%,#7c3aed);transform:translate(-4%,-44%) rotate(9deg)}

/* News+：资讯卡片骨架 */
.news{display:flex;gap:16px;justify-content:center}
.news-side{display:flex;flex-direction:column;gap:16px;width:240px}
.news-side .ncard{flex:1}
.ncard{background:var(--bg);border:1px solid var(--line);border-radius:18px;padding:20px;display:flex;flex-direction:column;gap:12px;justify-content:center}
.ncard-main{width:340px;justify-content:flex-start}
.nimg{display:block;height:140px;border-radius:12px;background:linear-gradient(135deg,#22a35a,#0f5c34);margin-bottom:6px}
.nline{display:block;height:10px;border-radius:5px;background:var(--line)}
.w70{width:70%}.w60{width:60%}.w55{width:55%}.w45{width:45%}.w40{width:40%}.w35{width:35%}

/* Account：登录卡 */
.account{display:flex;justify-content:center}
.lcard{width:300px;background:var(--bg);border:1px solid var(--line);border-radius:22px;padding:36px 28px;display:flex;flex-direction:column;align-items:center;gap:14px;box-shadow:0 12px 32px rgba(0,0,0,.06)}
.lcard-logo{width:52px;height:52px;border-radius:14px}
.lfield{width:100%;height:34px;border:1px solid var(--line);border-radius:9px}
.lbtn{width:100%;height:36px;border-radius:980px;background:var(--blue);color:#fff;font-size:13px;font-weight:600;display:flex;align-items:center;justify-content:center}

/* 宣传小格：两列，每格配视觉 */
.promo-grid{margin-top:12px;padding:0 12px;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.promo-sm{padding:64px 22px 48px;text-align:center}
.promo-sm h3{font-size:26px;font-weight:700;letter-spacing:-.4px}
/* 「即将推出」小胶囊 */
.tag{display:inline-block;margin-top:10px;padding:4px 12px;border-radius:980px;font-size:12.5px;font-weight:600;letter-spacing:.04em;border:1px solid currentColor;opacity:.75}
.ad-hero .tag{margin:0 0 14px}
.promo-sm a{display:inline-block;margin-top:12px;font-size:15px}
.art-sm{margin-top:26px;display:flex;justify-content:center;align-items:center;min-height:90px;color:var(--text)}
.promo-sm.promo-dark .art-sm{color:#f5f5f7}

/* Credit 小卡 */
.mcard{width:190px;height:120px;border-radius:14px;background:linear-gradient(135deg,#4a4a4c,#2c2c2e 55%,#101012);border:1px solid rgba(255,255,255,.18);color:#fff;padding:14px 16px;display:flex;flex-direction:column;text-align:left}
.mcard b{font-size:12px;font-weight:600}
.mcard .chip{width:26px;height:19px;margin-top:10px}

/* 脚注：底栏最上方，灰底小字，下方细分隔线 */
.foot-notes{max-width:980px;margin:0 auto;padding:20px 22px 14px;border-bottom:1px solid var(--line);font-size:14px;line-height:1.5;color:var(--text-2)}
.foot-notes ul{list-style:none}
.foot-notes li{margin-bottom:4px}

.wrap{max-width:980px;margin:0 auto;padding:0 22px}
.wrap h2{font-size:28px;margin:56px 0 20px}
.cta{display:inline-block;padding:10px 24px;border-radius:980px;font-size:15px;font-weight:600}
.cta.primary{background:var(--blue);color:#fff}


/* 汉堡菜单（窄屏） */
.menu-btn{display:none;width:28px;height:28px;border:0;background:none;color:var(--text);cursor:pointer;align-items:center;justify-content:center;opacity:.8;margin-left:2px}
.menu-btn:hover{opacity:1}
.menu-panel{display:none;position:absolute;top:100%;left:0;right:0;background:var(--flyout-bg);border-bottom:1px solid var(--bar-line);padding:6px 22px 16px;z-index:99}
#nav.menu-open .menu-panel{display:block}
.menu-panel a{display:block;font-size:15px;color:var(--text);padding:12px 0;border-bottom:1px solid var(--bar-line)}
.menu-panel a:last-child{border-bottom:none}
.menu-acc-btn{display:block;width:100%;text-align:left;font-size:15px;color:var(--text);background:none;border:0;border-bottom:1px solid var(--bar-line);padding:12px 0;cursor:pointer;font-family:inherit}
.menu-sub{display:none;padding-left:18px}
.menu-sub a{color:var(--text);opacity:.85}
#nav.acc-open .menu-sub{display:block}
@media(max-width:760px){
  .menu-btn{display:flex}
  .links{display:none}/* 窄屏导航收进汉堡 */
}
@media(max-width:760px){
  .logo span{display:none}/* 窄屏只留 logo 图标 */
  .expand-inner{padding:28px 20px 48px}
  .expand-cols{flex-direction:column;gap:24px}
  .expand-big a{font-size:20px}
  .searchform input{font-size:22px}
  .nav-inner{overflow-x:auto}
  .promo{padding:48px 18px 0}
  .promo h2{font-size:28px}
  .promo-sub{font-size:16px}
  .art{margin:32px auto 40px}
  .cards{height:250px;transform:scale(.78)}
  .news{flex-direction:column;align-items:center}
  .ncard-main{width:280px}
  .news-side{width:280px}
  .promo-grid{grid-template-columns:1fr}
  .promo-sm{padding:44px 18px 36px}
  .promo-sm h3{font-size:22px}
}

/* 滚动浮现 */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ===== 账户管理页（功能型，非推广页） ===== */
.acct{max-width:720px;padding-top:48px;padding-bottom:24px;min-height:52vh}

/* 未登录引导 */
.acct-guest{text-align:center;padding:56px 22px}
.acct-logo{width:64px;height:64px;border-radius:16px;display:block;margin:0 auto 18px}
.acct-guest h1{font-size:28px;font-weight:700;letter-spacing:-.3px}
.acct-guest p{margin-top:8px;font-size:15px;color:var(--text-2)}
.acct-guest .cta{display:inline-block;margin-top:26px;padding:11px 34px;border-radius:980px;font-size:16px}
.acct-create{display:block;margin-top:16px;font-size:14px;color:var(--blue)}
.acct-create:hover{text-decoration:underline}

/* 已登录头部 */
.acct-head{display:flex;align-items:center;gap:18px;padding:8px 0 26px}
.acct-avatar{width:64px;height:64px;border-radius:50%;background:var(--blue);color:#fff;font-size:26px;font-weight:600;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.acct-head h1{font-size:28px;font-weight:700;letter-spacing:-.3px}
.acct-sub{font-size:14px;color:var(--text-2);margin-top:2px}

/* 分组列表 */
.acct-sec{font-size:13px;font-weight:600;color:var(--text-2);margin:26px 0 8px;letter-spacing:.02em}
.acct-list{background:var(--bg);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.acct-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:15px 18px;font-size:15px;color:var(--text);border-bottom:1px solid var(--line)}
.acct-row:last-child{border-bottom:none}
a.acct-row:hover{background:var(--panel)}
.acct-meta{font-size:14px;color:var(--text-2);flex-shrink:0}
a.acct-row .acct-meta{color:var(--blue)}
.acct-row-off{opacity:.6}

/* 退出 */
.acct-out{margin-top:36px;padding:10px 26px;border-radius:980px;border:1px solid var(--line);background:none;color:#d70015;font-size:14px;font-weight:600;cursor:pointer;font-family:inherit}
.acct-out:hover{border-color:#d70015}

@media (max-width:734px){
  .acct{padding-top:32px}
  .acct-head h1{font-size:24px}
}