/* =====================================================================
 * 聆打 Linda — 會員站共用樣式
 *
 * 色票與字體完全沿用現有行銷首頁 index.html(深色底 + 琥珀橘),
 * 讓「行銷頁 → 註冊 → 會員中心」看起來是同一個產品,
 * 不要出現「前面很精緻、登入後變成陽春表單」的斷層。
 *
 * 命名規則:全部用 .ld- 前綴,避免和之後可能引入的第三方 CSS 撞名。
 * 這支檔是全站共用的,不要只為單一頁面加樣式;頁面專屬的請寫在該頁的
 * <style> 區塊(layout_header() 的 'style' 參數)。
 * ===================================================================== */

:root {
  --bg: #0b0a08;
  --bg-soft: #131110;
  --surface: #18150f;
  --surface-2: #201c14;
  --surface-3: #272216;
  --border: rgba(255, 240, 220, 0.09);
  --border-strong: rgba(255, 240, 220, 0.18);
  --text: #f3ede0;
  --text-dim: #a89f8c;
  --text-faint: #6f6858;
  --amber: #ff8a3d;
  --amber-soft: #ffb877;
  --amber-dim: rgba(255, 138, 61, 0.14);
  --mint: #7ee6b8;
  --danger: #ff6b6b;
  --danger-dim: rgba(255, 107, 107, 0.12);
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: 'Noto Sans TC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --nav-h: 68px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  background: radial-gradient(ellipse 1200px 700px at 50% -10%, #211a10 0%, var(--bg) 55%);
  background-attachment: fixed;
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font: inherit; color: inherit; }

/* 顆粒紋理:和首頁同一張 SVG noise,少了它深色底會顯得很「平」 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1;
  mix-blend-mode: overlay;
}

.ld-wrap { width: 100%; max-width: 1140px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 2; }
.ld-wrap--narrow { max-width: 880px; }

/* 只給螢幕閱讀器看的字(表單 label、跳過導覽) */
.ld-sr {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.ld-skip {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--amber); color: #1a0f04; padding: 10px 18px; border-radius: 0 0 10px 0;
}
.ld-skip:focus { left: 0; }

/* ---------------------------------------------------------------------
 * 代登入橫幅
 * 使用者特別要求:admin 代登入時最上方要有明顯橫幅,
 * 否則很容易忘記自己不是本人,在別人帳號上亂按。
 * ------------------------------------------------------------------- */
.ld-imp {
  position: relative; z-index: 60;
  background: linear-gradient(90deg, var(--amber), #ff6a1f);
  color: #1a0f04;
  font-family: var(--mono);
  font-size: 13px; font-weight: 700;
  text-align: center;
  padding: 9px 18px;
  display: flex; align-items: center; justify-content: center; gap: 14px; flex-wrap: wrap;
}
.ld-imp b { font-weight: 800; }
.ld-imp form { display: inline; }
.ld-imp .ld-imp-stop {
  background: rgba(26, 15, 4, 0.85); color: #ffd9b8;
  border: 0; border-radius: 100px;
  padding: 4px 14px; font-size: 12px; font-weight: 700;
  cursor: pointer; transition: background .18s ease;
}
.ld-imp .ld-imp-stop:hover { background: #1a0f04; }

/* ---------------------------------------------------------------------
 * 導覽列
 * ------------------------------------------------------------------- */
.ld-nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11, 10, 8, 0.82);
  backdrop-filter: saturate(150%) blur(14px);
  -webkit-backdrop-filter: saturate(150%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.ld-nav-inner {
  height: var(--nav-h);
  display: flex; align-items: center; gap: 18px;
}
.ld-brand { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.ld-brand img { height: 30px; width: auto; }
.ld-brand .ld-brand-txt {
  font-family: var(--mono); font-weight: 700; font-size: 17px; letter-spacing: -0.02em;
}
.ld-brand .ld-brand-txt i { color: var(--amber); font-style: normal; }

.ld-nav-links { display: flex; align-items: center; gap: 4px; margin-left: 14px; flex: 1 1 auto; }
.ld-nav-links a {
  font-size: 14px; color: var(--text-dim);
  padding: 8px 13px; border-radius: 9px;
  transition: color .18s ease, background .18s ease;
  white-space: nowrap;
}
.ld-nav-links a:hover { color: var(--text); background: rgba(255, 240, 220, 0.05); }
.ld-nav-links a.is-active { color: var(--amber-soft); background: var(--amber-dim); }

.ld-nav-right { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }

/* 語言切換下拉。用 <details> 做,免 JS 也能開合(JS 只負責點外面關閉)。 */
.ld-lang { position: relative; }
.ld-lang > summary {
  list-style: none; cursor: pointer;
  display: flex; align-items: center; gap: 7px;
  font-family: var(--mono); font-size: 12.5px; color: var(--text-dim);
  border: 1px solid var(--border-strong); border-radius: 100px;
  padding: 7px 13px;
  transition: border-color .18s ease, color .18s ease;
  user-select: none;
}
.ld-lang > summary::-webkit-details-marker { display: none; }
.ld-lang > summary:hover { color: var(--amber-soft); border-color: var(--amber); }
.ld-lang > summary svg { width: 14px; height: 14px; opacity: .8; }
.ld-lang-menu {
  position: absolute; right: 0; top: calc(100% + 8px);
  min-width: 186px; max-height: 62vh; overflow-y: auto;
  background: var(--surface-2);
  border: 1px solid var(--border-strong); border-radius: 14px;
  padding: 6px;
  box-shadow: 0 24px 50px -18px rgba(0, 0, 0, .8);
  z-index: 70;
}
.ld-lang-menu a {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  font-size: 13.5px; color: var(--text-dim);
  padding: 8px 12px; border-radius: 9px;
}
.ld-lang-menu a:hover { background: rgba(255, 240, 220, 0.06); color: var(--text); }
.ld-lang-menu a.is-active { color: var(--amber-soft); }
.ld-lang-menu a.is-active::after { content: "✓"; font-size: 12px; }

/* 按鈕 */
.ld-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  font-family: var(--mono); font-weight: 700; font-size: 14px;
  padding: 11px 20px; border-radius: 11px;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .16s ease, box-shadow .16s ease, background .16s ease, border-color .16s ease, color .16s ease;
  white-space: nowrap;
}
.ld-btn:disabled { opacity: .55; cursor: not-allowed; transform: none !important; }
.ld-btn svg { width: 17px; height: 17px; flex: 0 0 auto; }

.ld-btn--primary {
  background: var(--amber); color: #1a0f04;
  box-shadow: 0 8px 22px -8px rgba(255, 138, 61, .55), inset 0 1px 0 rgba(255, 255, 255, .3);
}
.ld-btn--primary:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 13px 26px -8px rgba(255, 138, 61, .7); }

.ld-btn--ghost { border-color: var(--border-strong); color: var(--text-dim); background: transparent; }
.ld-btn--ghost:hover { border-color: var(--amber); color: var(--amber-soft); }

.ld-btn--google {
  background: #fff; color: #1f1f1f;
  border-color: #fff; font-family: var(--sans); font-weight: 600;
}
.ld-btn--google:hover { background: #f0ece5; transform: translateY(-2px); }

.ld-btn--block { width: 100%; }
.ld-btn--lg { font-size: 15px; padding: 14px 26px; }
.ld-btn--sm { font-size: 12.5px; padding: 8px 14px; border-radius: 9px; }

/* 漢堡 */
.ld-burger {
  display: none;
  background: transparent; border: 1px solid var(--border-strong);
  border-radius: 10px; width: 40px; height: 38px;
  cursor: pointer; align-items: center; justify-content: center;
}
.ld-burger span { display: block; width: 17px; height: 2px; background: var(--text); border-radius: 2px; position: relative; }
.ld-burger span::before, .ld-burger span::after {
  content: ""; position: absolute; left: 0; width: 17px; height: 2px; background: var(--text); border-radius: 2px;
}
.ld-burger span::before { top: -5.5px; }
.ld-burger span::after { top: 5.5px; }

/* 手機抽屜 */
.ld-drawer {
  display: none;
  border-bottom: 1px solid var(--border);
  background: var(--bg-soft);
  position: relative; z-index: 49;
}
.ld-drawer.is-open { display: block; }
.ld-drawer .ld-wrap { padding-top: 12px; padding-bottom: 18px; }
.ld-drawer a.ld-drawer-link {
  display: block; padding: 12px 4px; font-size: 15px; color: var(--text-dim);
  border-bottom: 1px solid var(--border);
}
.ld-drawer a.ld-drawer-link:last-of-type { border-bottom: 0; }
.ld-drawer a.ld-drawer-link.is-active { color: var(--amber-soft); }
.ld-drawer-actions { display: flex; gap: 10px; margin-top: 14px; }
.ld-drawer-actions .ld-btn { flex: 1; }

/* ---------------------------------------------------------------------
 * 主要內容區
 * ------------------------------------------------------------------- */
.ld-main { flex: 1 0 auto; position: relative; z-index: 2; padding: 46px 0 76px; }

.ld-auth {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.86fr);
  gap: 46px;
  align-items: start;
}
.ld-auth--single { grid-template-columns: minmax(0, 620px); justify-content: center; }

.ld-card {
  background: linear-gradient(168deg, rgba(39, 34, 22, .92), rgba(24, 21, 15, .96));
  border: 1px solid var(--border-strong);
  border-radius: 20px;
  padding: 34px 34px 30px;
  box-shadow: 0 30px 70px -30px rgba(0, 0, 0, .85);
}
.ld-card--plain { background: var(--surface); }
.ld-card + .ld-card { margin-top: 20px; }

.ld-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 11.5px; font-weight: 600; letter-spacing: .06em;
  color: var(--amber-soft); background: var(--amber-dim);
  border: 1px solid rgba(255, 138, 61, .3);
  padding: 5px 13px; border-radius: 100px; margin-bottom: 18px;
}
.ld-eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--amber); }

.ld-h1 { font-size: 31px; font-weight: 900; line-height: 1.3; letter-spacing: -.01em; margin-bottom: 10px; }
.ld-h1 .hl { color: var(--amber); }
.ld-h2 { font-size: 20px; font-weight: 800; margin-bottom: 12px; }
.ld-h3 { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.ld-lede { color: var(--text-dim); font-size: 15px; margin-bottom: 26px; }
.ld-muted { color: var(--text-dim); font-size: 13.5px; }
.ld-faint { color: var(--text-faint); font-size: 12.5px; font-family: var(--mono); }

/* ---------------------------------------------------------------------
 * 表單
 * ------------------------------------------------------------------- */
.ld-field { margin-bottom: 18px; }
.ld-label {
  display: flex; align-items: baseline; justify-content: space-between; gap: 10px;
  font-size: 13px; font-weight: 700; color: var(--text-dim);
  margin-bottom: 7px;
}
.ld-label .ld-label-extra { font-weight: 400; font-size: 12.5px; }

.ld-input {
  width: 100%;
  background: rgba(11, 10, 8, .68);
  border: 1px solid var(--border-strong);
  border-radius: 11px;
  color: var(--text);
  font-family: var(--sans); font-size: 15px;
  padding: 13px 15px;
  transition: border-color .16s ease, box-shadow .16s ease, background .16s ease;
}
.ld-input::placeholder { color: var(--text-faint); }
.ld-input:focus {
  outline: none; border-color: var(--amber);
  box-shadow: 0 0 0 3px rgba(255, 138, 61, .16);
  background: rgba(11, 10, 8, .9);
}
.ld-input[readonly] { color: var(--text-dim); background: rgba(11, 10, 8, .4); cursor: default; }
.ld-input.is-bad { border-color: var(--danger); }
.ld-input--mono { font-family: var(--mono); letter-spacing: .08em; text-transform: uppercase; }

/* 密碼欄 + 顯示/隱藏 */
.ld-pw { position: relative; }
.ld-pw .ld-input { padding-right: 52px; }
.ld-pw-eye {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  background: transparent; border: 0; cursor: pointer;
  color: var(--text-faint); padding: 8px 10px; border-radius: 8px; line-height: 0;
}
.ld-pw-eye:hover { color: var(--amber-soft); }
.ld-pw-eye svg { width: 18px; height: 18px; }

/* 密碼強度條 */
.ld-strength { margin-top: 9px; }
.ld-strength-bar { display: flex; gap: 5px; }
.ld-strength-bar i {
  flex: 1; height: 4px; border-radius: 3px; background: rgba(255, 240, 220, .1);
  transition: background .2s ease;
}
.ld-strength[data-level="1"] .ld-strength-bar i:nth-child(-n+1) { background: var(--danger); }
.ld-strength[data-level="2"] .ld-strength-bar i:nth-child(-n+2) { background: #e8a33d; }
.ld-strength[data-level="3"] .ld-strength-bar i:nth-child(-n+3) { background: var(--amber); }
.ld-strength[data-level="4"] .ld-strength-bar i { background: var(--mint); }
.ld-strength-txt { font-family: var(--mono); font-size: 11.5px; color: var(--text-faint); margin-top: 6px; display: block; }

.ld-hint { font-size: 12.5px; color: var(--text-faint); margin-top: 7px; }
.ld-err-inline { font-size: 12.5px; color: var(--danger); margin-top: 7px; display: block; }

/* 勾選 */
.ld-check { display: flex; align-items: flex-start; gap: 11px; font-size: 13.5px; color: var(--text-dim); cursor: pointer; }
.ld-check input[type="checkbox"] {
  appearance: none; -webkit-appearance: none;
  width: 19px; height: 19px; flex: 0 0 auto; margin-top: 2px;
  border: 1px solid var(--border-strong); border-radius: 6px;
  background: rgba(11, 10, 8, .68); cursor: pointer;
  position: relative; transition: background .16s ease, border-color .16s ease;
}
.ld-check input[type="checkbox"]:checked { background: var(--amber); border-color: var(--amber); }
.ld-check input[type="checkbox"]:checked::after {
  content: ""; position: absolute; left: 6px; top: 2px;
  width: 5px; height: 10px; border: solid #1a0f04; border-width: 0 2px 2px 0; transform: rotate(45deg);
}
.ld-check input[type="checkbox"]:focus-visible { outline: 2px solid var(--amber); outline-offset: 2px; }
.ld-check a { color: var(--amber-soft); text-decoration: underline; text-underline-offset: 2px; }

.ld-row-between { display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap; }

/* 蜜罐:給機器人填的欄位,人看不到也 tab 不到 */
.ld-hp { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; opacity: 0; }

/* 分隔線 */
.ld-or {
  display: flex; align-items: center; gap: 14px;
  color: var(--text-faint); font-family: var(--mono); font-size: 11.5px; letter-spacing: .1em;
  margin: 22px 0;
}
.ld-or::before, .ld-or::after { content: ""; flex: 1; height: 1px; background: var(--border); }

/* ---------------------------------------------------------------------
 * 提示訊息
 * ------------------------------------------------------------------- */
.ld-alert {
  display: flex; gap: 12px; align-items: flex-start;
  border-radius: 13px; padding: 13px 16px;
  font-size: 13.5px; line-height: 1.65;
  margin-bottom: 20px;
  border: 1px solid var(--border-strong);
  background: var(--surface-2);
}
.ld-alert .ld-alert-ico { flex: 0 0 auto; width: 18px; height: 18px; margin-top: 2px; }
.ld-alert--error { border-color: rgba(255, 107, 107, .45); background: var(--danger-dim); color: #ffd0d0; }
.ld-alert--ok { border-color: rgba(126, 230, 184, .38); background: rgba(126, 230, 184, .1); color: #cdf5e4; }
.ld-alert--info { border-color: rgba(255, 138, 61, .32); background: var(--amber-dim); color: #ffe0c6; }
.ld-alert ul { margin: 0; padding-left: 18px; }
.ld-alert a { color: inherit; text-decoration: underline; text-underline-offset: 2px; }

/* 推薦人徽章 */
.ld-refbadge {
  display: flex; align-items: center; gap: 12px;
  border: 1px dashed rgba(255, 138, 61, .45);
  background: var(--amber-dim);
  border-radius: 13px; padding: 12px 15px; margin-bottom: 20px;
}
.ld-refbadge .ld-avatar {
  width: 36px; height: 36px; border-radius: 50%; flex: 0 0 auto;
  background: linear-gradient(150deg, var(--amber), #c85a12);
  color: #1a0f04; font-family: var(--mono); font-weight: 800; font-size: 15px;
  display: flex; align-items: center; justify-content: center;
}
.ld-refbadge .ld-refbadge-txt { font-size: 13.5px; color: #ffe0c6; }
.ld-refbadge .ld-refbadge-txt b { color: var(--amber-soft); }

/* ---------------------------------------------------------------------
 * 右側資訊欄(把註冊頁做「厚」的關鍵:講清楚註冊後拿到什麼)
 * ------------------------------------------------------------------- */
.ld-aside { display: flex; flex-direction: column; gap: 18px; position: sticky; top: calc(var(--nav-h) + 24px); }
.ld-panel {
  border: 1px solid var(--border); border-radius: 18px;
  background: rgba(24, 21, 15, .66);
  padding: 24px 24px 22px;
}
.ld-panel--accent { border-color: rgba(255, 138, 61, .28); background: linear-gradient(165deg, rgba(255, 138, 61, .1), rgba(24, 21, 15, .7)); }

.ld-benefits { list-style: none; display: flex; flex-direction: column; gap: 15px; }
.ld-benefits li { display: flex; gap: 13px; align-items: flex-start; }
.ld-benefits .ld-bico {
  width: 30px; height: 30px; border-radius: 9px; flex: 0 0 auto;
  background: var(--amber-dim); border: 1px solid rgba(255, 138, 61, .28);
  display: flex; align-items: center; justify-content: center; color: var(--amber-soft);
}
.ld-benefits .ld-bico svg { width: 15px; height: 15px; }
.ld-benefits .ld-btitle { font-size: 14px; font-weight: 700; }
.ld-benefits .ld-bdesc { font-size: 12.8px; color: var(--text-dim); line-height: 1.6; }

.ld-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.ld-stat {
  border: 1px solid var(--border); border-radius: 13px;
  background: rgba(11, 10, 8, .45); padding: 13px 12px; text-align: center;
}
.ld-stat .ld-stat-n { font-family: var(--mono); font-size: 19px; font-weight: 800; color: var(--amber-soft); }
.ld-stat .ld-stat-l { font-size: 11.5px; color: var(--text-faint); margin-top: 2px; }

.ld-steps { list-style: none; counter-reset: s; display: flex; flex-direction: column; gap: 13px; }
.ld-steps li { counter-increment: s; display: flex; gap: 12px; align-items: flex-start; font-size: 13.5px; color: var(--text-dim); }
.ld-steps li::before {
  content: counter(s);
  width: 24px; height: 24px; flex: 0 0 auto; border-radius: 50%;
  background: var(--surface-3); border: 1px solid var(--border-strong);
  color: var(--amber-soft); font-family: var(--mono); font-size: 12px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}

.ld-quote { font-size: 13.5px; color: var(--text-dim); font-style: italic; line-height: 1.75; }
.ld-quote-by { font-family: var(--mono); font-size: 11.5px; color: var(--text-faint); margin-top: 10px; font-style: normal; }

/* 結果頁的大圖示 */
.ld-result-ico {
  width: 74px; height: 74px; border-radius: 22px; margin: 0 auto 22px;
  display: flex; align-items: center; justify-content: center;
}
.ld-result-ico svg { width: 34px; height: 34px; }
.ld-result-ico--ok { background: rgba(126, 230, 184, .13); border: 1px solid rgba(126, 230, 184, .4); color: var(--mint); }
.ld-result-ico--bad { background: var(--danger-dim); border: 1px solid rgba(255, 107, 107, .4); color: var(--danger); }
.ld-result-ico--wait { background: var(--amber-dim); border: 1px solid rgba(255, 138, 61, .4); color: var(--amber-soft); }
.ld-center { text-align: center; }
.ld-center .ld-lede { max-width: 460px; margin-left: auto; margin-right: auto; }

.ld-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.ld-actions--center { justify-content: center; }

/* ---------------------------------------------------------------------
 * 頁尾
 * ------------------------------------------------------------------- */
.ld-foot {
  flex: 0 0 auto; position: relative; z-index: 2;
  border-top: 1px solid var(--border);
  background: rgba(11, 10, 8, .6);
  padding: 40px 0 34px;
  font-size: 13px; color: var(--text-faint);
}
.ld-foot-grid { display: flex; gap: 40px; flex-wrap: wrap; justify-content: space-between; }
.ld-foot-col { min-width: 150px; }
.ld-foot-col h4 { font-family: var(--mono); font-size: 11.5px; letter-spacing: .1em; color: var(--text-dim); margin-bottom: 12px; text-transform: uppercase; }
.ld-foot-col a { display: block; padding: 4px 0; color: var(--text-faint); }
.ld-foot-col a:hover { color: var(--amber-soft); }
.ld-foot-bottom {
  margin-top: 30px; padding-top: 20px; border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-family: var(--mono); font-size: 11.5px;
}

/* ---------------------------------------------------------------------
 * 響應式
 * ------------------------------------------------------------------- */
@media (max-width: 980px) {
  .ld-auth { grid-template-columns: minmax(0, 1fr); gap: 26px; }
  .ld-aside { position: static; }
}

@media (max-width: 820px) {
  .ld-nav-links { display: none; }
  .ld-burger { display: flex; }
  .ld-nav-right .ld-nav-auth { display: none; }
  .ld-nav-inner { gap: 10px; }
  .ld-h1 { font-size: 25px; }
  .ld-card { padding: 26px 20px 24px; border-radius: 17px; }
  .ld-main { padding: 28px 0 56px; }
  .ld-wrap { padding: 0 18px; }
}

@media (min-width: 821px) {
  .ld-drawer { display: none !important; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

/* ============================================================
   註冊頁:手機驗證 / 圖形驗證碼的並排欄位
   注意:認證頁載的是這支 linda.css,不是 app.css(站上有兩套樣式表並存)。
   加錯檔案的話規則會存在但完全不生效 —— 踩過一次。
   ============================================================ */
.ld-inline{ display:flex; gap:10px; align-items:stretch; }
.ld-inline > .ld-input{ flex:1 1 auto; min-width:0; width:auto; }
.ld-inline > .ld-btn,
.ld-inline > img{ flex:0 0 auto; }
.ld-inline > .ld-btn{ white-space:nowrap; padding-inline:16px; }
.ld-inline > .ld-btn:disabled{ opacity:.5; cursor:not-allowed; }
@media(max-width:460px){
  .ld-inline{ flex-wrap:wrap; }
  .ld-inline > .ld-btn{ width:100%; }
}