/* ==========================================================================
   DMS 前置頁共用樣式（登入／忘記密碼／重設密碼…）— 2026-09-29 前置頁改版批 1
   規格：_ui_kit/auth_pages_mockup.html（mock v3，討論清單 27 項定案）
   🔑 地基沿用正式站的 bootstrap.min.css（5.0.0-beta1）／app.css／icons.css，本檔只疊一層。
   🔴 class 一律 .au- 開頭、不改任何全站 class：以後改全站 CSS 不會把前置頁弄壞，反之亦然。
      （mock 裡的 .fld／.inp／.err… 在這裡統一改名為 .au-fld／.au-inp／.au-err…，樣式數值照搬）
   🔑 字級（討論清單 26）：一般文字 ≥14px、標籤 ≥12px、輸入框 16px（iOS 小於 16px 會自動放大畫面）
   ========================================================================== */
:root{
    --au-bg0:#1b1918;
    --au-bg1:#262220;
    --au-bg2:#342f2c;
    --au-card:rgba(255,255,255,.055);
    --au-card-bd:rgba(255,255,255,.10);
    --au-inp:rgba(0,0,0,.28);
    --au-inp-bd:rgba(255,255,255,.14);
    --au-text:#f4efeb;
    --au-muted:#b8aea7;
    --au-dim:#8d837c;
    --au-accent:#f2b650;
    --au-accent-hi:#ffc768;
    --au-accent-ink:#221c14;
    --au-accent-bg:rgba(242,182,80,.13);
    --au-danger:#ff8a7a;
    --au-ok:#6fd6a0;
    --au-radius:14px;
}

html,body.au-body{min-height:100%}
body.au-body{
    margin:0;
    background:
        radial-gradient(900px 600px at 12% -10%, rgba(242,182,80,.14), transparent 60%),
        radial-gradient(800px 700px at 110% 110%, rgba(170,140,120,.16), transparent 60%),
        linear-gradient(160deg, var(--au-bg1) 0%, var(--au-bg0) 55%, #151312 100%);
    background-color:var(--au-bg0);
    background-attachment:fixed;
    color:var(--au-text);
    font-size:16px;
    overflow-x:hidden;
}

/* ---------------- 版面 ---------------- */
.au-wrap{
    max-width:1080px;margin:0 auto;
    min-height:100vh;
    display:grid;grid-template-columns:1fr;align-items:center;
    padding:28px 16px 40px;gap:48px;
    box-sizing:border-box;
}
@media (min-width:992px){
    .au-wrap{padding:40px 24px}
}
.au-panel{width:100%;max-width:440px;margin:0 auto;min-width:0}
/* Logo 是卡片左上方的小角標（mock v3） */
.au-corner{display:flex;align-items:center;gap:8px;margin:0 2px 10px;opacity:.72}
.au-corner img{height:15px;width:auto}
.au-corner span{font-size:12px;color:var(--au-dim);letter-spacing:.5px}
@media (max-width:640px){
    .au-wrap{padding:14px 16px 20px}
    .au-card{padding:20px 18px}
    .au-foot{margin-top:14px}
}
.au-vh{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

.au-card{
    background:var(--au-card);
    border:1px solid var(--au-card-bd);
    border-radius:20px;
    padding:28px 26px;
    box-shadow:0 24px 60px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.05);
    backdrop-filter:blur(10px);
}
@media (max-width:400px){ .au-card{padding:22px 18px} }

/* 同一頁的多個畫面（例：忘記密碼 → 已寄出） */
.au-scr{display:none;animation:auIn .25s ease}
.au-scr.au-on{display:block}
@keyframes auIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

.au-h{font-size:24px;font-weight:700;margin:0 0 6px;color:var(--au-text)}
.au-sub{color:var(--au-muted);font-size:15px;margin:0 0 22px;line-height:1.7}
.au-sub a,.au-link{color:var(--au-accent);text-decoration:none;font-weight:600;cursor:pointer}
.au-sub a:hover,.au-link:hover{color:var(--au-accent-hi);text-decoration:underline}
.au-sub b{color:var(--au-text)}

/* 登入頁精簡（mock v3：手機 375×667 一個畫面看完） */
.au-lg-head{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin-bottom:16px;flex-wrap:wrap}
.au-lg-head .au-h{margin:0}
.au-lg-head .au-sub{margin:0;font-size:14px}
.au-login .au-fld{margin-bottom:12px}
.au-login .au-row2{margin:0 0 12px}
.au-login .au-cf-wrap{margin:0 0 12px}
.au-login .au-or{margin:16px 0 12px}
.au-login .au-social a{height:44px}

/* ---------------- 欄位 ---------------- */
.au-fld{margin-bottom:16px}
.au-fld > label{display:block;font-size:14px;font-weight:600;color:var(--au-muted);margin-bottom:7px}
.au-inp{
    position:relative;display:flex;align-items:center;
    background:var(--au-inp);border:1px solid var(--au-inp-bd);border-radius:12px;
    transition:border-color .15s, box-shadow .15s;
}
.au-inp:focus-within{border-color:var(--au-accent);box-shadow:0 0 0 3px rgba(242,182,80,.18)}
.au-inp.au-bad{border-color:var(--au-danger);box-shadow:0 0 0 3px rgba(255,138,122,.15)}
.au-inp > i.au-lead{font-size:20px;color:var(--au-dim);padding-left:14px;flex:none}
.au-inp input{
    flex:1;min-width:0;background:transparent;border:0;outline:0;
    color:var(--au-text);font-size:16px;padding:13px 12px;
}
.au-inp input::placeholder{color:#7f756f}
/* 瀏覽器自動填入時不要蓋成白底（Chrome 的 autofill 底色） */
.au-inp input:-webkit-autofill{
    -webkit-text-fill-color:var(--au-text);
    -webkit-box-shadow:0 0 0 1000px #1f1b19 inset;
    caret-color:var(--au-text);
    transition:background-color 9999s ease-out 0s;
}
.au-inp .au-tail{
    flex:none;background:transparent;border:0;color:var(--au-dim);
    font-size:20px;padding:0 14px;height:48px;cursor:pointer;display:flex;align-items:center
}
.au-inp .au-tail:hover{color:var(--au-text)}
.au-hint{font-size:14px;color:var(--au-dim);margin-top:6px;line-height:1.6}
.au-err{font-size:14px;color:var(--au-danger);margin-top:6px;display:none;line-height:1.6;overflow-wrap:anywhere}
.au-err.au-show{display:block}
.au-caps{font-size:14px;color:var(--au-accent);margin-top:6px;display:none}
.au-caps.au-show{display:block}

.au-row2{display:flex;justify-content:space-between;align-items:center;gap:10px;margin:2px 0 18px;flex-wrap:wrap}
.au-chk{display:inline-flex;align-items:center;gap:8px;font-size:15px;color:var(--au-muted);cursor:pointer;user-select:none;margin:0}
.au-chk input{width:18px;height:18px;accent-color:var(--au-accent);flex:none;margin:0}

/* ---------------- Turnstile 區 ---------------- */
.au-cf-wrap{margin:4px 0 16px}
.au-cf-slot{min-height:65px;display:flex;justify-content:center}
.au-cf-slot iframe{max-width:100%}
.au-cf-note{font-size:14px;color:var(--au-dim);text-align:center;margin-top:6px}
.au-cf-fail{font-size:14px;color:var(--au-danger);text-align:center;margin-top:6px;display:none;line-height:1.6}
.au-cf-fail.au-show{display:block}
/* 表單層級的錯誤（人機驗證沒過、帳號停用…），放在送出鈕正上方 */
.au-form-err{margin:0 0 12px;text-align:center}

/* ---------------- 按鈕 ---------------- */
.au-btn{
    width:100%;border:0;border-radius:12px;
    font-size:16px;font-weight:700;padding:13px 16px;
    display:flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;
    text-decoration:none;
    transition:background .15s, opacity .15s, transform .05s;
}
.au-btn:active{transform:translateY(1px)}
.au-btn-main{background:var(--au-accent);color:var(--au-accent-ink)}
.au-btn-main:hover{background:var(--au-accent-hi);color:var(--au-accent-ink)}
.au-btn-ghost{background:transparent;color:var(--au-text);border:1px solid var(--au-inp-bd)}
.au-btn-ghost:hover{background:rgba(255,255,255,.05);color:var(--au-text)}
.au-btn[aria-disabled="true"]{opacity:.42;cursor:not-allowed}
.au-btn.au-busy{pointer-events:none;opacity:.85}
.au-btn .au-spin{width:18px;height:18px;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;animation:auSpin .7s linear infinite;display:none}
.au-btn.au-busy .au-spin{display:inline-block}
.au-btn.au-busy .au-lbl-idle{display:none}
.au-btn .au-lbl-busy{display:none}
.au-btn.au-busy .au-lbl-busy{display:inline}
@keyframes auSpin{to{transform:rotate(360deg)}}
.au-gap{height:10px}

/* ---------------- 分隔線與社群 ---------------- */
.au-or{display:flex;align-items:center;gap:12px;color:var(--au-dim);font-size:14px;margin:22px 0 16px}
.au-or::before,.au-or::after{content:"";flex:1;height:1px;background:rgba(255,255,255,.12)}
.au-social{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.au-social a{
    display:flex;align-items:center;justify-content:center;gap:8px;
    height:48px;border-radius:12px;background:rgba(255,255,255,.94);
    color:#333;font-size:14px;font-weight:600;text-decoration:none;cursor:pointer;
    transition:transform .12s, background .12s;
}
.au-social a:hover{background:#fff;transform:translateY(-1px);color:#333}
.au-social img{width:22px;height:22px}

.au-foot{text-align:center;color:var(--au-dim);font-size:14px;margin-top:22px}
.au-foot a{color:var(--au-muted);text-decoration:none}
.au-foot a:hover{color:var(--au-text)}

/* ---------------- 分段選擇（批 2 註冊／綁定會用到） ---------------- */
.au-seg{display:grid;grid-template-columns:1fr 1fr;background:var(--au-inp);border:1px solid var(--au-inp-bd);border-radius:12px;padding:4px;margin-bottom:18px}
.au-seg button{
    border:0;background:transparent;color:var(--au-muted);font-size:15px;font-weight:600;
    padding:10px 8px;border-radius:9px;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:6px
}
.au-seg button.au-on{background:var(--au-accent);color:var(--au-accent-ink)}

/* ---------------- 步驟條（批 2） ---------------- */
.au-steps{display:flex;gap:6px;margin:0 0 8px}
.au-steps-t{font-size:14px;color:var(--au-dim);margin:0 0 20px}
.au-steps-t b{color:var(--au-text);font-weight:600}
.au-steps .au-s{flex:1;min-width:0}
.au-steps .au-bar{height:4px;border-radius:4px;background:rgba(255,255,255,.12)}
.au-steps .au-s.au-done .au-bar,.au-steps .au-s.au-on .au-bar{background:var(--au-accent)}

/* ---------------- OTP 6 格（批 2） ---------------- */
.au-otp{display:grid;grid-template-columns:repeat(6,1fr);gap:8px;margin-bottom:8px}
.au-otp input{
    width:100%;min-width:0;height:54px;text-align:center;font-size:22px;font-weight:700;
    background:var(--au-inp);border:1px solid var(--au-inp-bd);border-radius:12px;color:var(--au-text);outline:0;
}
.au-otp input:focus{border-color:var(--au-accent);box-shadow:0 0 0 3px rgba(242,182,80,.18)}
.au-otp.au-bad input{border-color:var(--au-danger)}
.au-dest{
    display:flex;align-items:center;gap:10px;background:var(--au-accent-bg);
    border:1px solid rgba(242,182,80,.25);border-radius:12px;padding:12px 14px;margin-bottom:18px;font-size:15px
}
.au-dest i{font-size:22px;color:var(--au-accent);flex:none}
.au-dest b{color:var(--au-text);letter-spacing:.5px}
.au-dest .au-link{margin-left:auto;font-size:14px;white-space:nowrap}
.au-resend{font-size:14px;color:var(--au-dim);text-align:center;margin:14px 0 4px}
.au-resend b{color:var(--au-text)}

/* ---------------- 密碼強度與規則 ---------------- */
.au-meter{display:grid;grid-template-columns:repeat(4,1fr);gap:4px;margin-top:8px}
.au-meter i{height:4px;border-radius:4px;background:rgba(255,255,255,.12)}
.au-meter[data-lv="1"] i:nth-child(-n+1){background:var(--au-danger)}
.au-meter[data-lv="2"] i:nth-child(-n+2){background:#f0a24a}
.au-meter[data-lv="3"] i:nth-child(-n+3){background:var(--au-accent)}
.au-meter[data-lv="4"] i{background:var(--au-ok)}
.au-rules{list-style:none;padding:0;margin:8px 0 0;display:flex;flex-wrap:wrap;gap:6px 14px}
.au-rules li{font-size:14px;color:var(--au-dim);display:flex;align-items:center;gap:4px}
.au-rules li::before{content:"\25CB";font-size:12px}
.au-rules li.au-ok{color:var(--au-ok)}
.au-rules li.au-ok::before{content:"\2713"}

/* ---------------- 結果畫面 ---------------- */
.au-big{text-align:center;padding:6px 0 4px}
.au-big .au-ico{
    width:72px;height:72px;border-radius:50%;margin:0 auto 16px;
    display:flex;align-items:center;justify-content:center;font-size:38px
}
.au-big .au-ico-ok{background:rgba(111,214,160,.14);color:var(--au-ok)}
.au-big .au-ico-mail{background:var(--au-accent-bg);color:var(--au-accent)}
.au-big .au-ico-bad{background:rgba(255,138,122,.14);color:var(--au-danger)}
.au-big h3{font-size:22px;font-weight:700;margin:0 0 8px;color:var(--au-text)}
.au-big p{color:var(--au-muted);font-size:15px;line-height:1.75;margin:0 0 22px}

/* ---------------- 綁定（批 2） ---------------- */
.au-bind-who{
    display:flex;align-items:center;gap:12px;padding:14px;border-radius:14px;
    background:rgba(6,199,85,.10);border:1px solid rgba(6,199,85,.28);margin-bottom:18px
}
.au-bind-who img{width:40px;height:40px;border-radius:10px;background:#fff;padding:6px;flex:none}
.au-bind-who .au-k{font-size:14px;color:var(--au-muted)}
.au-bind-who .au-v{font-size:17px;font-weight:700;color:var(--au-text);word-break:break-all}
.au-bind-banner{
    display:flex;gap:10px;align-items:flex-start;font-size:14px;line-height:1.6;color:var(--au-text);
    background:rgba(6,199,85,.10);border:1px solid rgba(6,199,85,.28);border-radius:12px;padding:10px 12px;margin-bottom:18px
}
.au-bind-banner img{width:20px;height:20px;flex:none;margin-top:1px}
.au-bpane{display:none}
.au-bpane.au-on{display:block}

.au-terms{font-size:15px;color:var(--au-muted);line-height:1.7;display:flex;gap:10px;align-items:flex-start;margin:4px 0 18px;cursor:pointer}
.au-terms input{width:18px;height:18px;margin-top:4px;accent-color:var(--au-accent);flex:none}

/* ---------------- 第 2 層視窗（依 dms 疊層配色） ---------------- */
.au-ov{position:fixed;inset:0;z-index:2000;background:rgba(0,0,0,.6);display:none;align-items:center;justify-content:center;padding:16px}
.au-ov.au-show{display:flex}
.au-ov-box{
    width:100%;max-width:640px;max-height:82vh;display:flex;flex-direction:column;
    background:#2f3742;border:1px solid #5b6677;border-radius:14px;box-shadow:0 20px 55px rgba(0,0,0,.65);
    animation:auIn .2s ease;overflow:hidden;color:var(--au-text)
}
.au-ov-h{background:#3a4350;padding:14px 18px;font-size:17px;font-weight:700;display:flex;justify-content:space-between;align-items:center;gap:10px}
.au-ov-h button{background:transparent;border:0;color:#cfd6df;font-size:24px;line-height:1;cursor:pointer}
.au-ov-b{padding:18px;overflow:auto;font-size:15px;line-height:1.8;color:#dfe5ec}
.au-ov-b p{margin:0}
.au-ov-f{background:#262d36;padding:12px 18px;display:flex;justify-content:flex-end;gap:8px;flex-wrap:wrap}
.au-ov-f .au-btn{width:auto;padding:10px 20px}