/* ============================================================
   RICE 商城 · 共用玻璃设计系统
   质感参考 Apple Liquid Glass / LumaGlass：
     · 极清透 —— 背后有极光，玻璃只是"折射"它
     · 一条锐利的顶部高光棱（最关键的一条，玻璃靠它才有边界）
     · 边框要亮，靠亮度而不是靠模糊来区分层次
   ============================================================ */
:root{
  --accent:#07c160;
  --accent-lo:#05a14e;
  --accent-hi:#45e59a;
  --accent-soft:rgba(7,193,96,.14);
  --accent-line:rgba(7,193,96,.4);

  --page:#05060a;
  --text:#f4f5f8;
  --text-2:rgba(244,245,248,.66);
  --text-3:rgba(244,245,248,.38);

  /* 玻璃本体：斜向渐变，左上亮右下暗，模拟光从左上打过来 */
  --glass:linear-gradient(152deg,rgba(255,255,255,.155),rgba(255,255,255,.042) 46%,rgba(255,255,255,.082));
  --glass-hi:linear-gradient(152deg,rgba(255,255,255,.21),rgba(255,255,255,.065) 46%,rgba(255,255,255,.115));
  --glass-dim:linear-gradient(152deg,rgba(255,255,255,.088),rgba(255,255,255,.028));
  --stroke:rgba(255,255,255,.2);
  --stroke-hi:rgba(255,255,255,.3);
  /* 提高饱和度和亮度 —— 玻璃后面那层极光会显得更"透亮" */
  --blur:blur(18px) saturate(200%) brightness(1.12);

  /* 四条内棱：顶部最亮最锐，右边最弱（光源在左上） */
  --sheen:
    inset 0 1px 0 rgba(224,241,255,.46),
    inset 1px 0 0 rgba(255,255,255,.15),
    inset 0 -1px 0 rgba(255,255,255,.055),
    inset -1px 0 0 rgba(255,255,255,.04);
  --lift:0 22px 48px -20px rgba(0,0,0,.85), 0 3px 12px -4px rgba(0,0,0,.6);
  --lift-sm:0 10px 26px -14px rgba(0,0,0,.78), 0 1px 4px -1px rgba(0,0,0,.5);

  --r-xs:8px; --r-sm:11px; --r-md:15px; --r-lg:20px; --r-xl:26px; --r-full:999px;
  --ease:cubic-bezier(.22,1,.36,1);
  --nav-h:72px;
}

*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{background:var(--page);-webkit-text-size-adjust:100%}
body{
  margin:0;padding:0;background:transparent;color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Segoe UI",Roboto,sans-serif;
  font-size:14px;line-height:1.55;min-height:100vh;
  font-feature-settings:"tnum" 1;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
img{display:block}
::selection{background:rgba(7,193,96,.32)}
:focus-visible{outline:2px solid var(--accent-line);outline-offset:2px}
.hidden{display:none!important}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:99px}
::-webkit-scrollbar-track{background:transparent}

/* ---------- 极光：玻璃的"折射源" ---------- */
.aurora{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none;background:var(--page)}
.aurora i{position:absolute;display:block;border-radius:50%;filter:blur(62px);opacity:.6;will-change:transform}
.aurora i:nth-child(1){width:56vw;height:56vw;left:-14vw;top:-16vw;background:radial-gradient(circle,#1a6bff,transparent 68%);animation:drift1 26s ease-in-out infinite}
.aurora i:nth-child(2){width:48vw;height:48vw;right:-12vw;top:6vh;background:radial-gradient(circle,#07c160,transparent 68%);opacity:.48;animation:drift2 32s ease-in-out infinite}
.aurora i:nth-child(3){width:52vw;height:52vw;left:16vw;bottom:-22vw;background:radial-gradient(circle,#7c3aed,transparent 68%);opacity:.54;animation:drift3 38s ease-in-out infinite}
.aurora i:nth-child(4){width:34vw;height:34vw;right:8vw;bottom:-8vw;background:radial-gradient(circle,#06b6d4,transparent 70%);opacity:.38;animation:drift1 30s ease-in-out infinite reverse}
.aurora::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,6,10,.5),rgba(5,6,10,.12) 34%,rgba(5,6,10,.44))}
@keyframes drift1{0%,100%{transform:translate3d(0,0,0) scale(1)}50%{transform:translate3d(6vw,5vh,0) scale(1.14)}}
@keyframes drift2{0%,100%{transform:translate3d(0,0,0) scale(1.06)}50%{transform:translate3d(-7vw,7vh,0) scale(.94)}}
@keyframes drift3{0%,100%{transform:translate3d(0,0,0) scale(.96)}50%{transform:translate3d(5vw,-6vh,0) scale(1.12)}}

/* ---------- 页面切换过渡 ----------
   ⚠️ 千万别在 body 上动 transform / filter / backdrop-filter / will-change：
   这些属性会让 body 变成 position:fixed 子元素的"包含块"，
   底部导航的 fixed 会因此退化成"相对 body 定位"，跟着页面一起滚走 ——
   表现就是"必须滑到最底下才看得到导航栏"。
   所以：body 只做透明度，位移交给 .wrap（它不是导航的祖先）。 */
body.page-enter{animation:pageIn .42s var(--ease) both}
@keyframes pageIn{from{opacity:0}to{opacity:1}}
body.page-enter .wrap{animation:contentIn .5s var(--ease) both}
@keyframes contentIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
body.leaving{animation:pageOut .19s cubic-bezier(.5,0,.9,.4) both;pointer-events:none}
@keyframes pageOut{to{opacity:0}}

/* 进入 / 离开动效（新版）：class 加在 <html> 上，脚本一执行就生效，
   不用等 DOMContentLoaded，所以首屏不会"先白闪一下再淡入"。
   同样遵守上面的规矩：<html>/<body> 只动 opacity，位移都给 .wrap 等子元素。 */
@keyframes pgIn{from{opacity:0}to{opacity:1}}
@keyframes pgRise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
@keyframes pgTopIn{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:none}}
@keyframes pgNavIn{from{opacity:0;transform:translateY(18px) scale(.97)}to{opacity:1;transform:none}}
@keyframes pgOut{to{opacity:0;transform:translateY(-8px) scale(.997)}}
html.pg-in body{animation:pgIn .30s var(--ease) both}
html.pg-in .wrap{animation:pgRise .46s var(--ease) both}
html.pg-in .topbar{animation:pgTopIn .48s var(--ease) both}
html.pg-in .navwrap{animation:pgNavIn .54s var(--ease) both}
html.pg-leaving body{animation:pgOut .20s cubic-bezier(.55,0,.85,.35) both;pointer-events:none}
html.pg-leaving{pointer-events:none}

@media (prefers-reduced-motion:reduce){
  body.page-enter,body.leaving,body.page-enter .wrap{animation:none!important}
  html.pg-in body,html.pg-in .wrap,html.pg-in .topbar,html.pg-in .navwrap,
  html.pg-leaving body{animation:none!important}
  .tabbar,.help-fab,.navwrap{animation:none!important}
}

/* ---------- 玻璃面板 ---------- */
.glass,.card,.modal,.banner,.mine-item,.toast,.help-fab button,.help-fab a{
  background:var(--glass);
  -webkit-backdrop-filter:var(--blur);backdrop-filter:var(--blur);
  border:1px solid var(--stroke);
  box-shadow:var(--sheen),var(--lift);
}

/* ---------- 按钮 ---------- */
.btn{
  position:relative;color:var(--text);padding:9px 16px;border-radius:var(--r-sm);
  font-size:13px;font-weight:500;font-family:inherit;
  border:1px solid var(--stroke-hi);background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(180%);backdrop-filter:blur(14px) saturate(180%);
  box-shadow:var(--sheen),var(--lift-sm);
  transition:transform .22s var(--ease),border-color .22s,background .22s,box-shadow .22s,color .22s;
}
.btn:hover{transform:translateY(-1px);color:#fff;background:var(--glass-hi);border-color:var(--stroke-hi)}
.btn:active{transform:translateY(0) scale(.985)}
.btn.primary{
  background:linear-gradient(180deg,var(--accent-hi),var(--accent));border-color:rgba(255,255,255,.28);
  color:#04150c;font-weight:650;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.46),0 10px 26px -10px rgba(7,193,96,.65),0 2px 6px -2px rgba(0,0,0,.5);
}
.btn.primary:hover{background:linear-gradient(180deg,#54eea5,var(--accent));color:#04150c}
.btn.ghost{background:rgba(255,255,255,.035)}
.btn.ghost:hover{background:rgba(255,255,255,.085)}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}

/* ---------- 表单 ---------- */
.field{margin-bottom:12px}
.field label{display:block;font-size:12px;color:var(--text-2);margin-bottom:6px;letter-spacing:.01em}
.input,textarea.input{
  width:100%;padding:11px 13px;border-radius:var(--r-sm);color:var(--text);font-size:14px;outline:none;
  border:1px solid var(--stroke);background:rgba(255,255,255,.05);font-family:inherit;
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  transition:border-color .22s,background .22s,box-shadow .22s;
}
.input::placeholder{color:var(--text-3)}
.input:focus{border-color:var(--accent-line);background:rgba(255,255,255,.085);box-shadow:0 0 0 3px rgba(7,193,96,.12)}
select.input{appearance:none;
  background-image:linear-gradient(45deg,transparent 50%,var(--text-2) 50%),linear-gradient(135deg,var(--text-2) 50%,transparent 50%);
  background-position:calc(100% - 17px) 50%,calc(100% - 12px) 50%;
  background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.tip{color:var(--text-3);font-size:12px;text-align:center;margin-top:11px;line-height:1.6}
.checks{display:flex;flex-wrap:wrap;gap:14px;margin-top:6px}
.check{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--text-2);cursor:pointer}
.check input[type=checkbox]{appearance:none;width:17px;height:17px;flex:0 0 17px;border-radius:5px;
  border:1px solid var(--stroke-hi);background:rgba(255,255,255,.06);position:relative;cursor:pointer;
  transition:all .2s var(--ease)}
.check input[type=checkbox]:checked{background:linear-gradient(180deg,var(--accent-hi),var(--accent));border-color:transparent}
.check input[type=checkbox]:checked::after{content:'';position:absolute;left:5.5px;top:2px;width:4px;height:8px;
  border:solid #04150c;border-width:0 2px 2px 0;transform:rotate(45deg)}

/* ---------- 标签页 ---------- */
.tabs{display:flex;gap:8px;justify-content:center;margin-bottom:16px;flex-wrap:wrap}
/* 标签变多（消息、公告…）后手机上会挤成两行，小屏改成可以横向滑 */
@media (max-width:600px){
  .tabs{justify-content:flex-start;flex-wrap:nowrap;overflow-x:auto;overflow-y:hidden;
    -webkit-overflow-scrolling:touch;padding-bottom:4px;scrollbar-width:none}
  .tabs::-webkit-scrollbar{display:none}
  .tabs .tab{flex:none;white-space:nowrap;padding:8px 13px;font-size:12.5px}
}
.tab{
  border:1px solid var(--stroke);background:rgba(255,255,255,.05);color:var(--text-2);
  padding:8px 17px;border-radius:var(--r-full);font-size:13px;font-weight:500;font-family:inherit;
  -webkit-backdrop-filter:blur(12px) saturate(180%);backdrop-filter:blur(12px) saturate(180%);
  box-shadow:var(--sheen);transition:all .24s var(--ease);cursor:pointer;
}
.tab:hover{color:#fff;border-color:var(--stroke-hi)}
.tab.on{
  background:linear-gradient(180deg,var(--accent-hi),var(--accent));
  border-color:rgba(255,255,255,.28);color:#04150c;font-weight:650;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.46),0 8px 22px -8px rgba(7,193,96,.6);
}

/* ---------- 弹窗 ---------- */
.mask{
  position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;
  padding:18px 18px calc(var(--nav-h) + 30px);
  background:rgba(4,5,8,.55);
  -webkit-backdrop-filter:blur(10px) saturate(150%);backdrop-filter:blur(10px) saturate(150%);
  animation:fadeIn .22s var(--ease);
}
.mask.open{display:flex}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.modal{
  position:relative;border-radius:var(--r-xl);width:100%;max-width:432px;
  max-height:calc(100vh - var(--nav-h) - 60px);overflow-y:auto;padding:22px;
  animation:pop .3s var(--ease);
}
.modal.wide{max-width:530px}
@keyframes pop{from{transform:scale(.965) translateY(8px);opacity:0}to{transform:scale(1) translateY(0);opacity:1}}
.modal h2{margin:0 0 16px;font-size:17px;text-align:center;font-weight:600;letter-spacing:.01em}
/* 只命中弹窗的「直接子级」按钮行。以前写 .modal .row，会连交付说明里的
   文字行一起命中 —— 每行文字被变成 flex 容器还拉开 18px 间距，整块散架。 */
.modal > .row{display:flex;gap:10px;margin-top:16px}
.modal > .row > .btn{flex:1;padding:11px;text-align:center}

/* ---------- 通用小件 ---------- */
.tag{font-size:11px;padding:2px 9px;border-radius:var(--r-full);border:1px solid var(--stroke-hi);
  color:var(--text-2);flex:0 0 auto;height:20px;line-height:16px;font-weight:500;background:rgba(255,255,255,.05)}
.tag.ok{color:var(--accent-hi);border-color:var(--accent-line);background:var(--accent-soft)}
.tag.wait{color:#ffc978;border-color:rgba(255,183,77,.36);background:rgba(255,183,77,.1)}
.code{color:var(--accent-hi);word-break:break-all;font-size:13px;margin-top:8px;
  background:rgba(7,193,96,.1);border:1px dashed var(--accent-line);border-radius:var(--r-sm);padding:9px 11px;
  font-variant-numeric:tabular-nums}
.code .cp{float:right;font-size:11px;color:var(--accent-hi);border:1px solid var(--accent-line);
  background:rgba(255,255,255,.06);border-radius:var(--r-xs);padding:2px 9px;cursor:pointer;margin-left:8px;
  transition:all .2s var(--ease)}
.code .cp:hover{background:var(--accent);color:#04150c;border-color:transparent}
/* 交付说明：和 .detail-desc 用同一套干净玻璃底，只有小标题是绿的。
   以前整块是绿的，和上面灰色的「商品介绍」摆一起像两种东西，很杂。 */
.deliver{border-radius:var(--r-md);padding:14px;margin-top:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--stroke)}
.deliver h4{margin:0 0 9px;font-size:12.5px;color:var(--accent-hi);letter-spacing:.02em;font-weight:600;
  display:flex;align-items:center;gap:6px}
.deliver .row{font-size:13px;line-height:1.75;color:rgba(244,245,248,.86);word-break:break-all}
.deliver .row + .row{margin-top:3px}
/* 付款前锁住的交付说明：只给一句提示，链接和提取码不发出去 */
.deliver .locked{font-size:12.5px;line-height:1.8;color:rgba(244,245,248,.62);
  padding:11px 13px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.035);border:1px dashed rgba(255,255,255,.16);
  text-align:center}
.deliver .locked b{color:var(--accent-hi)}
.deliver a{color:var(--accent-hi);text-decoration:underline;text-underline-offset:2px;word-break:break-all}
.deliver a.qgroup{display:inline-block;background:linear-gradient(180deg,var(--accent-hi),var(--accent));color:#04150c;
  text-decoration:none;padding:6px 14px;border-radius:var(--r-sm);margin:4px 0;font-size:12.5px;font-weight:600;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.44),0 6px 16px -6px rgba(7,193,96,.6)}
.deliver .more{color:var(--text-3);font-size:11.5px;margin-top:8px}
.empty{color:var(--text-3);text-align:center;padding:52px 0;font-size:13px;letter-spacing:.01em}
/* 优惠券卡片 */
.cp-card{border:1px solid var(--stroke);border-radius:12px;padding:13px 14px;margin-bottom:10px;
  display:flex;justify-content:space-between;align-items:center;gap:10px;background:rgba(255,255,255,.03)}
.cp-card.used,.cp-card.expired{opacity:.45}
.cp-card .cp-main{display:flex;align-items:center;gap:12px;min-width:0}
.cp-card .cp-value{font-size:22px;font-weight:800;color:#ffb74d;white-space:nowrap}
.cp-card .cp-name{font-size:13.5px;font-weight:600}
.cp-card .cp-sub{font-size:11.5px;color:var(--text-3);margin-top:2px}
.cp-card .cp-state{font-size:12px;color:var(--text-3);white-space:nowrap}
.mine-item{border-radius:var(--r-md);padding:13px 14px;margin-bottom:10px}
.mine-item .r1{display:flex;justify-content:space-between;gap:8px;font-size:13.5px;font-weight:500}
.mine-item .t{color:var(--text-3);font-size:11.5px;margin-top:6px;word-break:break-all;letter-spacing:.01em}
.row-line{display:flex;justify-content:space-between;gap:10px;font-size:12.5px;padding:7px 0;
  border-bottom:1px solid rgba(255,255,255,.06)}
.row-line:last-of-type{border-bottom:0}
.row-line span{color:var(--text-3)}
.row-line b{font-weight:500;color:var(--text)}
.section-title{margin:26px 2px 14px;font-size:15px;font-weight:600;display:flex;align-items:center;gap:9px;letter-spacing:.01em}
.section-title::before{content:'';width:3px;height:15px;border-radius:2px;
  background:linear-gradient(180deg,var(--accent-hi),var(--accent));box-shadow:0 0 12px var(--accent-line)}
.skeleton{background:linear-gradient(90deg,rgba(255,255,255,.04),rgba(255,255,255,.095),rgba(255,255,255,.04));
  background-size:200% 100%;animation:sk 1.4s ease-in-out infinite;border-radius:var(--r-md)}
@keyframes sk{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* ---------- Toast ---------- */
.toast{
  position:fixed;left:50%;bottom:calc(var(--nav-h) + 34px);
  transform:translateX(-50%) translateY(16px) scale(.97);
  color:#fff;padding:12px 20px;border-radius:var(--r-md);font-size:13px;z-index:999;
  max-width:min(88vw,420px);text-align:center;line-height:1.55;pointer-events:none;
  opacity:0;transition:opacity .3s var(--ease),transform .3s var(--ease);
}
.toast.on{opacity:1;transform:translateX(-50%) translateY(0) scale(1)}

/* ---------- 右下角客服 ---------- */
.help-fab{position:fixed;right:18px;bottom:calc(var(--nav-h) + 26px);z-index:80;
  display:flex;flex-direction:column;gap:10px;align-items:flex-end}
.help-fab button,.help-fab a{
  border-radius:var(--r-full);padding:10px 16px;font-size:13px;cursor:pointer;text-decoration:none;
  color:var(--text);display:flex;align-items:center;gap:7px;font-weight:500;
  transition:transform .24s var(--ease),box-shadow .24s,border-color .24s,background .24s;
}
.help-fab button:hover,.help-fab a:hover{transform:translateY(-2px);border-color:var(--stroke-hi);color:#fff;background:var(--glass-hi)}
.help-fab a.qq{background:linear-gradient(180deg,var(--accent-hi),var(--accent));
  border-color:rgba(255,255,255,.28);color:#04150c;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.46),0 10px 26px -10px rgba(7,193,96,.65)}

/* ---------- 底部胶囊导航 ----------
   外层 .navwrap 固定悬浮在视口底部（离底边留一段距离，不贴死），
   里面是胶囊 + 一个收起/展开的小圆球。 */
.navwrap{
  position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom,0px));
  transform:translateX(-50%);z-index:210;
  display:flex;align-items:center;
  animation:tabIn .55s var(--ease) both;
}
@keyframes tabIn{from{transform:translateX(-50%) translateY(24px)}to{transform:translateX(-50%) translateY(0)}}
.tabbar{
  position:relative;transform:none;padding:6px;overflow:hidden;
  width:min(430px,calc(100vw - 96px));
  display:grid;grid-template-columns:repeat(var(--tb-n,3),1fr);gap:0;
  border-radius:var(--r-full);
  background:linear-gradient(152deg,rgba(255,255,255,.19),rgba(255,255,255,.06) 46%,rgba(255,255,255,.12));
  -webkit-backdrop-filter:blur(24px) saturate(200%) brightness(1.15);
  backdrop-filter:blur(24px) saturate(200%) brightness(1.15);
  border:1px solid var(--stroke-hi);
  box-shadow:
    inset 0 1px 0 rgba(224,241,255,.5),
    inset 1px 0 0 rgba(255,255,255,.16),
    inset 0 -1px 0 rgba(255,255,255,.07),
    0 24px 52px -18px rgba(0,0,0,.9),0 4px 14px -4px rgba(0,0,0,.6);
  transition:width .44s var(--ease),padding .44s var(--ease),opacity .24s var(--ease),
             border-width .44s var(--ease),transform .44s var(--ease);
}
/* 收起状态：胶囊缩掉，只剩小球 */
.navwrap.collapsed .tabbar{
  width:0;padding-left:0;padding-right:0;border-width:0;opacity:0;
  transform:scale(.9);pointer-events:none;
}
.nav-ball{
  flex:0 0 auto;width:47px;height:47px;margin-left:9px;padding:0;
  display:flex;align-items:center;justify-content:center;border-radius:50%;
  color:var(--text-2);cursor:pointer;
  border:1px solid var(--stroke-hi);
  background:linear-gradient(152deg,rgba(255,255,255,.19),rgba(255,255,255,.06) 46%,rgba(255,255,255,.12));
  -webkit-backdrop-filter:blur(24px) saturate(200%) brightness(1.15);
  backdrop-filter:blur(24px) saturate(200%) brightness(1.15);
  box-shadow:inset 0 1px 0 rgba(224,241,255,.5),inset 1px 0 0 rgba(255,255,255,.16),
             0 18px 40px -16px rgba(0,0,0,.88),0 3px 10px -3px rgba(0,0,0,.6);
  transition:margin-left .44s var(--ease),transform .3s var(--ease),color .24s,background .24s;
}
.navwrap.collapsed .nav-ball{margin-left:0}
.nav-ball:hover{color:#fff;transform:translateY(-2px);background:var(--glass-hi)}
.nav-ball:active{transform:scale(.93)}
.nav-ball svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.9;
  stroke-linecap:round;stroke-linejoin:round}
/* 收起后底部只占一个球的高度，提示条和悬浮按钮跟着下移 */
body.nav-collapsed{--nav-h:59px}
body.nav-collapsed .wrap{padding-bottom:104px}
.tb-pill{
  position:absolute;top:6px;bottom:6px;left:6px;width:calc((100% - 12px)/var(--tb-n,3));
  border-radius:var(--r-full);pointer-events:none;
  background:linear-gradient(180deg,rgba(69,229,154,.3),rgba(7,193,96,.2));
  border:1px solid rgba(120,240,180,.4);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.34),0 8px 22px -9px rgba(7,193,96,.7);
  transition:transform .44s var(--ease);
  transform:translateX(calc(var(--tb-i,0) * 100%));
}
.tb{
  position:relative;z-index:1;background:transparent;border:0;font-family:inherit;
  display:flex;flex-direction:column;align-items:center;gap:3px;padding:8px 4px;
  border-radius:var(--r-full);color:var(--text-3);font-size:11px;font-weight:500;
  letter-spacing:.01em;cursor:pointer;transition:color .3s var(--ease);
}
.tb svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.75;
  stroke-linecap:round;stroke-linejoin:round;transition:transform .32s var(--ease)}
.tb-t{max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tb:hover{color:var(--text-2)}
.tb.on{color:#dcffef}
.tb.on svg{transform:translateY(-1px) scale(1.07);filter:drop-shadow(0 0 9px rgba(7,193,96,.65))}
.tb:active svg{transform:scale(.9)}

/* ---------- 顶栏（各页共用外观） ---------- */
.topbar{
  position:sticky;top:0;z-index:60;width:100%;
  background:linear-gradient(180deg,rgba(14,17,24,.7),rgba(10,12,17,.44));
  -webkit-backdrop-filter:blur(24px) saturate(200%) brightness(1.1);
  backdrop-filter:blur(24px) saturate(200%) brightness(1.1);
  border-bottom:1px solid var(--stroke);
  box-shadow:inset 0 1px 0 rgba(224,241,255,.22);
}
.topbar-inner{max-width:1080px;margin:0 auto;padding:13px 16px;display:flex;align-items:center;gap:12px}
.logo{font-size:19px;font-weight:700;letter-spacing:.16em;text-transform:uppercase}
.logo .dot,.logo i{color:var(--accent);font-style:normal;text-shadow:0 0 15px var(--accent-line)}
.slogan{color:var(--text-2);font-size:12px;flex:1;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;letter-spacing:.02em}
.top-link{margin-left:auto;color:var(--text-2);font-size:13px;cursor:pointer;transition:color .2s;display:flex;align-items:center;gap:5px}
.top-link:hover{color:#fff}

/* ---------- 移动端 ---------- */
@media (max-width:600px){
  .aurora i{filter:blur(56px)}
  .navwrap{bottom:calc(16px + env(safe-area-inset-bottom,0px))}
  .tabbar{width:calc(100vw - 88px);padding:5px}
  .tb{padding:7px 3px;font-size:10.5px}
  .tb svg{width:20px;height:20px}
  .tb-pill{top:5px;bottom:5px;left:5px;width:calc((100% - 10px)/var(--tb-n,3))}
  .nav-ball{width:44px;height:44px;margin-left:8px}
  .nav-ball svg{width:20px;height:20px}
  .modal{padding:19px;border-radius:var(--r-lg)}
  .help-fab{right:12px;bottom:calc(var(--nav-h) + 20px);gap:9px}
  .help-fab .fab-t{display:none}
  .help-fab button,.help-fab a{width:46px;height:46px;padding:0;justify-content:center;font-size:19px;border-radius:50%}
  .help-fab button:hover,.help-fab a:hover{transform:translateY(-1px)}
}

/* ===== 正文里的链接：统一绿色高亮、可点、可换行 ===== */
.lnk{color:var(--accent-hi);text-decoration:underline;text-underline-offset:2px;
  text-decoration-thickness:1px;word-break:break-all;transition:color .2s var(--ease)}
.lnk:hover{color:#bdffdd}