/* ============================================================
   nav-v2.css — 全站導航列(main.master <header>）v2 改版專用
   - 獨立元件,所有 class 加 iv2-nav 前綴,不汙染 Bootstrap .navbar / 其他頁
   - CSS 變數定義在 .iv2-nav / .iv2-nav-drawer / .iv2-nav-scrim 三個根元素上(scope,不汙染全域 :root）
   - 風格:scroll-aware 固定毛玻璃白底(預設）+ 下滑縮高;
           body.has-hero-nav 時置頂透明白字(僅深色 hero 頁可開,目前未啟用）
   - 字體沿用 iv2 設計系統 Noto Sans TC;標點:程式半形、文案全形
   - 2026-05-20 建立(對應 demo\nav_demo.html）
   ============================================================ */

.iv2-nav,
.iv2-nav-drawer,
.iv2-nav-scrim{
  --iv2-brand-navy:#0a1530;
  --iv2-brand-navy-deep:#070f24;
  --iv2-primary:#5645d4;
  --iv2-primary-pressed:#4534b3;
  --iv2-primary-soft:#ece9fb;
  --iv2-accent-red:#ff385c;
  --iv2-accent-amber:#f5d75e;
  --iv2-ink:#1a1a1a;
  --iv2-charcoal:#37352f;
  --iv2-slate:#5d5b54;
  --iv2-steel:#787671;
  --iv2-hairline:#e5e3df;
  --iv2-surface:#f6f5f4;
  --iv2-font:'Noto Sans TC','Noto Sans Traditional Chinese','Microsoft JhengHei',PingFangTC,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --iv2-nav-h:74px;
  --iv2-nav-h-scrolled:62px;
}
.iv2-nav *,
.iv2-nav-drawer *{box-sizing:border-box;}
.iv2-nav a,
.iv2-nav-drawer a{text-decoration:none;}
.iv2-nav svg,
.iv2-nav-drawer svg{display:block;}

/* ============================================================
   導航列本體
   ============================================================ */
.iv2-nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:var(--iv2-nav-h);
  font-family:var(--iv2-font);
  transition:height .3s cubic-bezier(.16,1,.3,1),
             background .3s ease, box-shadow .3s ease, border-color .3s ease, backdrop-filter .3s ease;
  /* 預設(白色風格）= 毛玻璃白底
     opacity 由 .82 提高為 .92:捲動時深色頁面大標題(如試聽頁 Hero)會滑到固定頁首後面,
     .82 太透會讓深色標題明顯透出來像疊在頁首之上,.92 仍保留毛玻璃質感但不再透字 */
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:saturate(180%) blur(18px);
  backdrop-filter:saturate(180%) blur(18px);
  border-bottom:1px solid var(--iv2-hairline);
  box-shadow:0 1px 0 rgba(15,23,48,.02),0 8px 24px -16px rgba(15,23,48,.18);
}
/* 不支援 backdrop-filter 的瀏覽器:沒有模糊就會清楚透出後面內容,改用近乎不透明白底避免標題透出 */
@supports not ((backdrop-filter:saturate(180%) blur(18px)) or (-webkit-backdrop-filter:saturate(180%) blur(18px))){
  .iv2-nav{background:rgba(255,255,255,.98);}
}
.iv2-nav-inner{
  max-width:1320px;height:100%;margin:0 auto;padding:0 28px;
  display:flex;align-items:center;gap:18px;
}

/* LOGO */
.iv2-nav-brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.iv2-nav-brand img{width:auto;height:44px!important;max-width:100%;display:block;transition:height .3s ease;}
.iv2-nav-logo{
  font-size:22px;font-weight:900;letter-spacing:.01em;line-height:1;
  color:var(--iv2-brand-navy);display:flex;align-items:baseline;gap:8px;transition:color .3s ease,font-size .3s ease;
}
.iv2-nav-logo small{font-size:12px;font-weight:600;letter-spacing:.14em;color:var(--iv2-steel);transition:color .3s ease;}
.iv2-nav-logo b{color:var(--iv2-primary);transition:color .3s ease;}

/* 主選單 */
.iv2-nav-links{display:flex;align-items:center;gap:2px;margin-left:14px;flex:1;}
.iv2-nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:9px 15px;border-radius:10px;
  font-size:15.5px;font-weight:500;color:var(--iv2-charcoal);
  transition:color .18s ease,background .18s ease;white-space:nowrap;
}
.iv2-nav-link::after{
  content:"";position:absolute;left:15px;right:15px;bottom:5px;height:2px;border-radius:2px;
  background:var(--iv2-primary);transform:scaleX(0);transform-origin:center;
  transition:transform .22s cubic-bezier(.16,1,.3,1);
}
.iv2-nav-link:hover{color:var(--iv2-primary);background:var(--iv2-primary-soft);}
.iv2-nav-link.is-active,.iv2-nav-link.active{color:var(--iv2-primary);font-weight:600;}
.iv2-nav-link.is-active::after,.iv2-nav-link.active::after{transform:scaleX(1);}

/* 右側動作區 */
.iv2-nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;margin-left:auto;}

/* 購物車 icon + badge */
.iv2-nav-cart{
  position:relative;width:42px;height:42px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--iv2-charcoal);border:1px solid var(--iv2-hairline);background:#fff;
  transition:.18s ease;
}
.iv2-nav-cart:hover{color:var(--iv2-primary);border-color:var(--iv2-primary);background:var(--iv2-primary-soft);transform:translateY(-1px);}
.iv2-nav-cart svg{width:20px;height:20px;}
.iv2-nav-badge{
  position:absolute;top:-5px;right:-5px;
  display:flex;align-items:center;justify-content:center;box-sizing:border-box;
  min-width:19px;height:19px;padding:0 5px;
  border-radius:999px;background:var(--iv2-accent-red);color:#fff;
  font-size:11px;font-weight:700;line-height:1;text-align:center;
  border:2px solid #fff;box-shadow:0 2px 6px rgba(255,56,92,.4);
}
.iv2-nav-badge[data-count="0"]{display:none;}

/* 登入按鈕 */
.iv2-nav-login{
  display:inline-flex;align-items:center;gap:7px;height:42px;padding:0 20px;border-radius:999px;
  background:var(--iv2-primary);color:#fff;font-size:14.5px;font-weight:600;
  box-shadow:0 6px 16px -4px rgba(86,69,212,.5);transition:.18s ease;white-space:nowrap;
}
.iv2-nav-login:hover{background:var(--iv2-primary-pressed);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px -6px rgba(86,69,212,.6);}
.iv2-nav-login svg{width:16px;height:16px;}

/* 帳號 avatar 下拉 */
.iv2-nav-acct{position:relative;}
.iv2-nav-acct-btn{
  display:inline-flex;align-items:center;gap:9px;height:42px;padding:4px 14px 4px 5px;border-radius:999px;
  background:#fff;border:1px solid var(--iv2-hairline);color:var(--iv2-charcoal);
  font-family:inherit;font-size:14.5px;font-weight:600;cursor:pointer;transition:.18s ease;
}
.iv2-nav-acct-btn:hover{border-color:var(--iv2-primary);background:var(--iv2-primary-soft);}
.iv2-nav-avatar{
  width:32px;height:32px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,#5645d4,#8b6bff);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;
}
.iv2-nav-acct-name{max-width:8em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.iv2-nav-caret{width:14px;height:14px;color:var(--iv2-steel);transition:transform .2s ease;}
.iv2-nav-acct.is-open .iv2-nav-caret{transform:rotate(180deg);}

.iv2-nav-menu{
  position:absolute;top:calc(100% + 12px);right:0;min-width:226px;
  background:#fff;border:1px solid var(--iv2-hairline);border-radius:16px;
  box-shadow:0 18px 48px -12px rgba(15,23,48,.28),0 4px 12px -6px rgba(15,23,48,.12);
  padding:8px;opacity:0;visibility:hidden;transform:translateY(-8px) scale(.98);transform-origin:top right;
  transition:opacity .18s ease,transform .18s ease,visibility .18s;
}
.iv2-nav-acct.is-open .iv2-nav-menu{opacity:1;visibility:visible;transform:translateY(0) scale(1);}
.iv2-nav-menu-head{padding:10px 12px 12px;border-bottom:1px solid var(--iv2-hairline);margin-bottom:6px;}
.iv2-nav-menu-head .nm{font-size:15px;font-weight:700;color:var(--iv2-ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.iv2-nav-menu-head .ns{font-size:12.5px;color:var(--iv2-steel);margin-top:2px;}
.iv2-nav-menu a{
  display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:10px;
  font-size:14.5px;font-weight:500;color:var(--iv2-charcoal);transition:.14s ease;
}
.iv2-nav-menu a svg{width:17px;height:17px;color:var(--iv2-steel);transition:color .14s;flex-shrink:0;}
.iv2-nav-menu a:hover{background:var(--iv2-primary-soft);color:var(--iv2-primary);}
.iv2-nav-menu a:hover svg{color:var(--iv2-primary);}
.iv2-nav-menu a.is-logout{color:var(--iv2-accent-red);}
.iv2-nav-menu a.is-logout svg{color:var(--iv2-accent-red);}
.iv2-nav-menu a.is-logout:hover{background:#ffeef1;color:var(--iv2-accent-red);}
.iv2-nav-menu-div{height:1px;background:var(--iv2-hairline);margin:6px 4px;}

/* 漢堡 */
.iv2-nav-burger{
  display:none;width:44px;height:44px;border:0;background:transparent;cursor:pointer;
  align-items:center;justify-content:center;border-radius:10px;flex-shrink:0;
}
.iv2-nav-burger:hover{background:rgba(15,23,48,.06);}
.iv2-nav-burger span{position:relative;width:22px;height:2px;background:var(--iv2-charcoal);border-radius:2px;transition:.25s;display:block;}
.iv2-nav-burger span::before,.iv2-nav-burger span::after{
  content:"";position:absolute;left:0;width:22px;height:2px;background:var(--iv2-charcoal);border-radius:2px;transition:.25s;
}
.iv2-nav-burger span::before{top:-7px;}
.iv2-nav-burger span::after{top:7px;}

/* ============================================================
   首頁模式(透明置頂）— body.has-hero-nav 且未捲動時
   目前 main.master 未對任何頁加 has-hero-nav,故預設不啟用;
   若首頁要開,於首頁深色 hero 確認可讀性後再加 body class。
   ============================================================ */
body.has-hero-nav .iv2-nav:not(.is-scrolled){
  background:transparent;border-bottom-color:transparent;box-shadow:none;
  -webkit-backdrop-filter:none;backdrop-filter:none;
}
body.has-hero-nav .iv2-nav:not(.is-scrolled) .iv2-nav-brand img{filter:brightness(0) invert(1);}
body.has-hero-nav .iv2-nav:not(.is-scrolled) .iv2-nav-logo,
body.has-hero-nav .iv2-nav:not(.is-scrolled) .iv2-nav-logo b{color:#fff;text-shadow:0 1px 12px rgba(0,0,0,.25);}
body.has-hero-nav .iv2-nav:not(.is-scrolled) .iv2-nav-logo small{color:rgba(255,255,255,.7);}
body.has-hero-nav .iv2-nav:not(.is-scrolled) .iv2-nav-link{color:rgba(255,255,255,.9);}
body.has-hero-nav .iv2-nav:not(.is-scrolled) .iv2-nav-link:hover{color:#fff;background:rgba(255,255,255,.14);}
body.has-hero-nav .iv2-nav:not(.is-scrolled) .iv2-nav-link.is-active,
body.has-hero-nav .iv2-nav:not(.is-scrolled) .iv2-nav-link.active{color:#fff;}
body.has-hero-nav .iv2-nav:not(.is-scrolled) .iv2-nav-link.is-active::after,
body.has-hero-nav .iv2-nav:not(.is-scrolled) .iv2-nav-link.active::after{background:var(--iv2-accent-amber);}
body.has-hero-nav .iv2-nav:not(.is-scrolled) .iv2-nav-cart{color:#fff;border-color:rgba(255,255,255,.4);background:rgba(255,255,255,.08);}
body.has-hero-nav .iv2-nav:not(.is-scrolled) .iv2-nav-cart:hover{background:rgba(255,255,255,.2);border-color:#fff;}
body.has-hero-nav .iv2-nav:not(.is-scrolled) .iv2-nav-acct-btn{color:#fff;border-color:rgba(255,255,255,.4);background:rgba(255,255,255,.08);}
body.has-hero-nav .iv2-nav:not(.is-scrolled) .iv2-nav-acct-btn:hover{background:rgba(255,255,255,.2);}
body.has-hero-nav .iv2-nav:not(.is-scrolled) .iv2-nav-caret{color:rgba(255,255,255,.8);}
body.has-hero-nav .iv2-nav:not(.is-scrolled) .iv2-nav-burger span,
body.has-hero-nav .iv2-nav:not(.is-scrolled) .iv2-nav-burger span::before,
body.has-hero-nav .iv2-nav:not(.is-scrolled) .iv2-nav-burger span::after{background:#fff;}

/* 捲動後縮高 */
.iv2-nav.is-scrolled{height:var(--iv2-nav-h-scrolled);}
.iv2-nav.is-scrolled .iv2-nav-logo{font-size:20px;}
.iv2-nav.is-scrolled .iv2-nav-brand img{height:38px!important;}

/* 內容區頂部留白：固定導航高度 74px（hardcode；spacer 不在 .iv2-nav scope 內，讀不到 --iv2-nav-h 變數，故直接寫死避免高度塌成 0 蓋到內容） */
.iv2-nav-spacer{height:74px;}

/* ============================================================
   手機抽屜
   ============================================================ */
.iv2-nav-scrim{
  position:fixed;inset:0;z-index:1001;background:rgba(10,21,48,.5);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s;
  -webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);
}
.iv2-nav-scrim.is-open{opacity:1;visibility:visible;}
.iv2-nav-drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:1002;width:min(86vw,360px);
  background:#fff;box-shadow:-20px 0 60px -20px rgba(10,21,48,.4);
  transform:translateX(100%);transition:transform .34s cubic-bezier(.16,1,.3,1);
  display:flex;flex-direction:column;font-family:var(--iv2-font);
}
.iv2-nav-drawer.is-open{transform:translateX(0);}
.iv2-nav-drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 20px;border-bottom:1px solid var(--iv2-hairline);
}
.iv2-nav-drawer-head .iv2-nav-logo{font-size:20px;}
/* 抽屜左上角 LOGO：與首頁左上角共用 logos.svg，尺寸對齊桌機(200px)；
   容器可在窄抽屜內收縮，img 以 max-width:100% 等比縮放避免溢出與變形 */
.iv2-nav-drawer-head .iv2-nav-brand{flex:0 1 auto;min-width:0;height:auto;}
.iv2-nav-drawer-head .iv2-nav-brand img{width:auto;height:44px!important;max-width:100%;}
.iv2-nav-drawer-close{
  width:40px;height:40px;border:0;background:var(--iv2-surface);border-radius:50%;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;color:var(--iv2-charcoal);transition:.15s;
}
.iv2-nav-drawer-close:hover{background:#ececec;transform:rotate(90deg);}
.iv2-nav-drawer-close svg{width:18px;height:18px;}
.iv2-nav-drawer-body{flex:1;overflow-y:auto;padding:14px 16px 24px;}
.iv2-nav-drawer-body a.d-link{
  display:flex;align-items:center;gap:13px;padding:14px 14px;border-radius:12px;
  font-size:16.5px;font-weight:500;color:var(--iv2-charcoal);transition:.15s;
  opacity:0;transform:translateX(16px);
}
.iv2-nav-drawer.is-open .d-link{animation:iv2DItemIn .4s cubic-bezier(.16,1,.3,1) forwards;}
@keyframes iv2DItemIn{to{opacity:1;transform:translateX(0);}}
.iv2-nav-drawer-body a.d-link svg{width:19px;height:19px;color:var(--iv2-steel);flex-shrink:0;}
.iv2-nav-drawer-body a.d-link:hover,.iv2-nav-drawer-body a.d-link.is-active,.iv2-nav-drawer-body a.d-link.active{background:var(--iv2-primary-soft);color:var(--iv2-primary);}
.iv2-nav-drawer-body a.d-link:hover svg,.iv2-nav-drawer-body a.d-link.is-active svg,.iv2-nav-drawer-body a.d-link.active svg{color:var(--iv2-primary);}
.iv2-nav-drawer-sec{font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--iv2-steel);padding:18px 14px 6px;text-transform:uppercase;}
.iv2-nav-drawer-div{height:1px;background:var(--iv2-hairline);margin:14px 8px;}
.iv2-nav-drawer-foot{padding:16px 20px;border-top:1px solid var(--iv2-hairline);}
.iv2-nav-drawer-foot .iv2-nav-login{width:100%;height:50px;font-size:16px;}
.iv2-nav-drawer-user{display:flex;align-items:center;gap:12px;padding:4px 6px 16px;}
.iv2-nav-drawer-user .iv2-nav-avatar{width:42px;height:42px;font-size:17px;}
.iv2-nav-drawer-user .nm{font-size:16px;font-weight:700;}
.iv2-nav-drawer-user .ns{font-size:13px;color:var(--iv2-steel);}

/* ============================================================
   RWD
   ============================================================ */
@media (max-width:1080px){
  .iv2-nav-links{display:none;}
  .iv2-nav-acct,.iv2-nav-login{display:none;}
  .iv2-nav-burger{display:inline-flex;}
  .iv2-nav-actions{margin-left:auto;gap:6px;}
}
@media (max-width:600px){
  .iv2-nav-inner{padding:0 12px;}
  .iv2-nav-logo{font-size:19px;}
  .iv2-nav-logo small{display:none;}
  /* 修正:登入態 actions 多了通知鈴鐺,brand(236px)+actions(140px) 會超出窄螢幕導致漢堡鈕被裁。
     讓 brand 可收縮(原 flex-shrink:0)、縮小 logo、收緊 actions 間距 → 右側動作鈕永遠完整顯示 */
  .iv2-nav-brand{flex-shrink:1;min-width:0;}
  .iv2-nav-brand img{height:38px!important;}
  .iv2-nav-actions{gap:4px;}
}

/* ============================================================
   主選單下拉(關於實力 → 關於實力 / 金榜榮耀;桌機 hover,可擴充階段2 about 子頁)
   ============================================================ */
.iv2-nav-item{position:relative;display:inline-flex;align-items:center;}
.iv2-nav-subcaret{width:13px;height:13px;margin-left:4px;color:var(--iv2-steel);transition:transform .2s ease;}
.iv2-has-sub:hover .iv2-nav-subcaret,
.iv2-has-sub:focus-within .iv2-nav-subcaret{transform:rotate(180deg);}
.iv2-nav-sub{
  position:absolute;top:calc(100% + 10px);left:0;min-width:194px;
  background:#fff;border:1px solid var(--iv2-hairline);border-radius:14px;
  box-shadow:0 18px 48px -12px rgba(15,23,48,.28),0 4px 12px -6px rgba(15,23,48,.12);
  padding:8px;opacity:0;visibility:hidden;transform:translateY(-8px);transform-origin:top left;
  transition:opacity .18s ease,transform .18s ease,visibility .18s;z-index:60;
}
/* hover 緩衝:補滿選單與連結之間 10px 空隙,避免滑過時下拉消失 */
.iv2-nav-sub::before{content:"";position:absolute;top:-10px;left:0;right:0;height:10px;}
.iv2-has-sub:hover .iv2-nav-sub,
.iv2-has-sub:focus-within .iv2-nav-sub{opacity:1;visibility:visible;transform:translateY(0);}
.iv2-nav-sub a{
  display:flex;align-items:center;padding:10px 13px;border-radius:9px;
  font-size:14.5px;font-weight:500;color:var(--iv2-charcoal);white-space:nowrap;transition:.14s ease;
}
.iv2-nav-sub a:hover{background:var(--iv2-primary-soft);color:var(--iv2-primary);}

/* ---- 手機抽屜:關於實力 二層展開(accordion) ---- */
/* 抽屜既有樣式選擇器是 a.d-link(限 <a>);accordion 用 <button>,故需自帶 flex 與 svg 尺寸,否則 icon 會撐滿 */
.iv2-nav-drawer-body .d-acc-btn{
  display:flex;align-items:center;gap:13px;width:100%;padding:14px 14px;border-radius:12px;
  border:0;background:transparent;cursor:pointer;font-family:inherit;text-align:left;
  font-size:16.5px;font-weight:500;color:var(--iv2-charcoal);transition:.15s;
}
.iv2-nav-drawer-body .d-acc-btn:hover{background:var(--iv2-primary-soft);color:var(--iv2-primary);}
.iv2-nav-drawer-body .d-acc-btn > svg{width:19px;height:19px;color:var(--iv2-steel);flex-shrink:0;}
.iv2-nav-drawer-body .d-acc-btn:hover > svg{color:var(--iv2-primary);}
.iv2-nav-drawer-body .d-acc-btn span{flex:1;}
.iv2-nav-drawer-body .d-acc-btn .d-acc-caret{width:18px;height:18px;flex-shrink:0;color:var(--iv2-steel);transition:transform .25s ease;}
.d-acc.is-open .d-acc-caret{transform:rotate(180deg);}

/* ============================================================
   全站小鈴鐺(最新通知 + 課程公告 合併;bell.js 驅動)
   - 圖示鈕沿用購物車圓鈕語彙;下拉沿用帳號選單卡片語彙
   - 全站(非 .iv2-mc scope),手機保持顯示
   ============================================================ */
.iv2-nav-bell{position:relative;display:inline-flex;}
.iv2-nav-bell-btn{
  position:relative;width:42px;height:42px;border-radius:50%;padding:0;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--iv2-charcoal);border:1px solid var(--iv2-hairline);background:#fff;
  cursor:pointer;transition:.18s ease;
}
.iv2-nav-bell-btn:hover{color:var(--iv2-primary);border-color:var(--iv2-primary);background:var(--iv2-primary-soft);transform:translateY(-1px);}
.iv2-nav-bell-btn svg{width:20px;height:20px;}
.iv2-nav-bell.is-open .iv2-nav-bell-btn{color:var(--iv2-primary);border-color:var(--iv2-primary);background:var(--iv2-primary-soft);}
.iv2-nav-bell-badge{
  position:absolute;top:-5px;right:-5px;box-sizing:border-box;
  display:flex;align-items:center;justify-content:center;
  min-width:19px;height:19px;padding:0 5px;border-radius:999px;
  background:var(--iv2-accent-red);color:#fff;font-size:11px;font-weight:700;line-height:1;
  border:2px solid #fff;box-shadow:0 2px 6px rgba(255,56,92,.4);
}
.iv2-nav-bell-badge[hidden]{display:none;}

.iv2-nav-bell-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:344px;max-width:calc(100vw - 32px);
  background:#fff;border:1px solid var(--iv2-hairline);border-radius:16px;
  box-shadow:0 18px 48px -12px rgba(15,23,48,.28),0 4px 12px -6px rgba(15,23,48,.12);
  padding:8px;z-index:1002;
}
.iv2-nav-bell-panel[hidden]{display:none;}
.iv2-nav-bell-head{display:flex;align-items:center;justify-content:space-between;padding:8px 10px 10px;border-bottom:1px solid var(--iv2-hairline);margin-bottom:4px;}
.iv2-nav-bell-title{font-size:15px;font-weight:700;color:var(--iv2-ink);}
.iv2-nav-bell-allread{border:0;background:transparent;color:var(--iv2-primary);font-family:inherit;font-size:12.5px;font-weight:600;cursor:pointer;padding:4px 6px;border-radius:8px;transition:.14s;}
.iv2-nav-bell-allread:hover{background:var(--iv2-primary-soft);}
.iv2-nav-bell-allread:disabled{opacity:.5;cursor:default;}
.iv2-nav-bell-list{max-height:380px;overflow-y:auto;}
.iv2-nav-bell-item{position:relative;display:flex;align-items:flex-start;gap:9px;padding:11px 10px;border-radius:10px;text-decoration:none;transition:background .14s;}
.iv2-nav-bell-item:hover{background:var(--iv2-primary-soft);}
.iv2-nav-bell-item.is-unread{background:#f6f4ff;}
.iv2-nav-bell-item.is-unread:hover{background:#efeaff;}
.iv2-nav-bell-it-main{flex:1;min-width:0;}
.iv2-nav-bell-it-title{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;font-size:13.5px;line-height:1.4;color:var(--iv2-charcoal);}
.iv2-nav-bell-item.is-unread .iv2-nav-bell-it-title{font-weight:600;color:var(--iv2-ink);}
.iv2-nav-bell-it-time{display:block;margin-top:3px;font-size:11.5px;color:var(--iv2-steel);}
.iv2-nav-bell-dot{flex-shrink:0;width:8px;height:8px;margin-top:6px;border-radius:50%;background:var(--iv2-accent-red);}
.iv2-nav-bell-empty{padding:34px 12px;text-align:center;color:var(--iv2-steel);font-size:13px;}
.iv2-nav-bell-more{display:block;text-align:center;padding:10px;margin-top:4px;border-top:1px solid var(--iv2-hairline);color:var(--iv2-primary);font-size:13px;font-weight:600;text-decoration:none;}
.iv2-nav-bell-more:hover{background:var(--iv2-primary-soft);border-radius:0 0 12px 12px;}

/* 類型彩標(鈴鐺下拉用) */
.iv2-bell-tag{flex-shrink:0;margin-top:1px;font-size:11px;font-weight:700;padding:2px 8px;border-radius:999px;white-space:nowrap;line-height:1.5;}
.iv2-bell-tag-bulletin{background:#e6f6ea;color:#1a7a30;}
.iv2-bell-tag-system{background:#eaf0fb;color:#2a55a8;}
.iv2-bell-tag-course{background:#efecff;color:#5645d4;}
.iv2-bell-tag-order{background:#fff0e6;color:#b8470b;}

/* hero 透明導覽:鈴鐺鈕白化(與購物車一致) */
body.has-hero-nav .iv2-nav:not(.is-scrolled) .iv2-nav-bell-btn{color:#fff;border-color:rgba(255,255,255,.4);background:rgba(255,255,255,.08);}
body.has-hero-nav .iv2-nav:not(.is-scrolled) .iv2-nav-bell-btn:hover{background:rgba(255,255,255,.2);border-color:#fff;}

@media (max-width:600px){
  .iv2-nav-bell-panel{width:300px;}
}
.d-acc-panel{max-height:0;overflow:hidden;transition:max-height .3s ease;padding-left:32px;}
.d-acc.is-open .d-acc-panel{max-height:220px;}
.d-acc-panel a.d-sublink{
  display:block;padding:12px 14px;border-radius:10px;
  font-size:15.5px;font-weight:500;color:var(--iv2-steel);transition:.15s;
}
.d-acc-panel a.d-sublink:hover,
.d-acc-panel a.d-sublink.is-active,
.d-acc-panel a.d-sublink.active{background:var(--iv2-primary-soft);color:var(--iv2-primary);}