:root {
      --bg: #0e1324;
      --text: #3a3229;
      --muted: #726858;
      --line: rgba(30, 50, 35, .14);
      --brand: #1682b6;
      --brand-2: #37b6c9;
      --ok: #8ff0c0;
      --danger: #ffb2b2;
      --shadow: 0 32px 90px rgba(0, 0, 0, .42);
      --radius: clamp(22px, 2.4vw, 38px);
      --side-card: clamp(250px, 24vw, 360px);
      --center-card: clamp(760px, 92vw, 1760px);
      --card-height: calc(100svh - 36px);
      --edge-pad: max(18px, calc((100vw - var(--center-card)) / 2));
    }

    * { box-sizing: border-box; }

    html,
    body {
      width: 100%;
      height: 100%;
      margin: 0;
    }

    html { scroll-behavior: smooth; }

    body {
      min-height: 100vh;
      min-height: 100svh;
      overflow: hidden;
      color: var(--text);
      font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC", "Microsoft JhengHei", Arial, sans-serif;
      background:
        radial-gradient(circle at 18% 8%, rgba(255, 255, 255, .55), transparent 34%),
        radial-gradient(circle at 12% 24%, rgba(140, 200, 118, .34), transparent 40%),
        radial-gradient(circle at 88% 14%, rgba(120, 186, 236, .42), transparent 44%),
        radial-gradient(circle at 50% 108%, rgba(244, 236, 218, .95), transparent 58%),
        linear-gradient(180deg, #bfe1f4 0%, #cfeaf2 46%, #f4ecda 100%);
    }

    a { color: inherit; }

    button,
    input,
    select,
    textarea { font: inherit; }

    .sr-only {
      position: absolute;
      width: 1px;
      height: 1px;
      padding: 0;
      margin: -1px;
      overflow: hidden;
      clip: rect(0, 0, 0, 0);
      white-space: nowrap;
      border: 0;
    }

    /* ===== 進場開門效果 ===== */
    .intro-gate {
      position: fixed;
      inset: 0;
      z-index: 999;
      display: grid;
      grid-template-columns: 1fr 1fr;
      overflow: hidden;
      background: transparent;
      transition: opacity .6s ease, visibility .6s ease;
    }

    .intro-gate.is-done {
      opacity: 0;
      visibility: hidden;
      pointer-events: none;
    }

    .gate-panel {
      position: relative;
      min-height: 100vh;
      min-height: 100svh;
      transform-style: preserve-3d;
      background:
        linear-gradient(90deg, rgba(255,255,255,.06), transparent 20%, transparent 80%, rgba(0,15,6,.24)),
        linear-gradient(180deg, #0f5b86, #0c4d73);
      border: 1px solid rgba(12,50,75,.4);
      box-shadow: inset 0 0 0 12px rgba(6,30,50,.2), inset 0 0 70px rgba(4,24,42,.32);
      animation-duration: 1.75s;
      animation-delay: .45s;
      animation-timing-function: cubic-bezier(.2, .8, .2, 1);
      animation-fill-mode: forwards;
    }

    .gate-panel::before {
      content: "";
      position: absolute;
      inset: 10% 7%;
      border: 1px solid rgba(255,244,220,.28);
      border-radius: 8px;
      box-shadow: inset 0 0 0 1px rgba(70,45,20,.22);
    }

    .gate-panel::after {
      content: "";
      position: absolute;
      top: 50%;
      width: 18px;
      height: 74px;
      margin-top: -37px;
      border-radius: 999px;
      background: linear-gradient(#ffe5a9, #b9832e);
      box-shadow: 0 10px 24px rgba(0,0,0,.28);
    }

    .gate-left {
      transform-origin: left center;
      animation-name: openLeft;
      background-position: left center;
    }

    .gate-left::after { right: 34px; }

    .gate-right {
      transform-origin: right center;
      animation-name: openRight;
      background-position: right center;
    }

    .gate-right::after { left: 34px; }

    .gate-title {
      position: absolute;
      left: 0;
      right: 0;
      top: 58%;
      transform: translateY(-50%);
      z-index: 5;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 12px;
      padding: 24px;
      pointer-events: none;
      text-align: center;
      color: #ffffff;
      animation: gateTitleIn .8s ease both, gateFade .9s ease forwards 3.6s;
    }

    .gate-title span {
      display: inline-block;
      max-width: calc(100vw - 40px);
      white-space: nowrap;
      padding: 10px 6px;
      background: none;
      font-weight: 800;
      font-size: clamp(1rem, 5vw, 1.9rem);
      letter-spacing: .08em;
      color: #ffffff;
      text-shadow: 0 2px 16px rgba(6,40,60,.55), 0 1px 3px rgba(6,40,60,.4);
    }

    .gate-title {
      gap: 12px;
    }

    .gate-logo {
      display: block;
      width: min(340px, 62vw);
      height: auto;
      margin: 0 auto;
      filter: drop-shadow(0 8px 24px rgba(70,45,20,.28));
    }

    /* 參加活動／有關 AEB 卡：讓右上角 logo 以 body 為基準 */
    #join .card-body,
    #products .card-body,
    #winners .card-body {
      position: relative;
    }

    /* 手機版：活動說明卡視覺區左上角 logo */
    #details .card-visual .visual-logo {
      position: absolute;
      top: 15px;
      left: 18px;
      z-index: 3;
      height: 24px;
      width: auto;
      max-width: 46%;
      object-fit: contain;
      object-position: left center;
      display: none;
      filter: drop-shadow(0 3px 12px rgba(0,0,0,.45));
    }
    /* 活動說明卡：品牌鎖定改為 acer｜AEB＋大鐸，桌機／手機皆顯示 */
    #details .card-visual .visual-logo.brand-lockup {
      display: none;
      height: auto;
      max-width: none;
      filter: none;
      padding: clamp(5px, .7vw, 9px) clamp(11px, 1.4vw, 16px);
      gap: clamp(8px, 1vw, 12px);
    }
    /* tag-row 內的品牌鎖定（桌機，位於 hashtag 左側）與右上角 corner 版本 */
    .tag-lockup.brand-lockup,
    .corner-logo.brand-lockup {
      align-self: center;
      height: auto;
      filter: none;
      background: none;
      border: 1.5px solid rgba(22, 130, 182, .7);
      box-shadow: none;
      -webkit-backdrop-filter: none;
      backdrop-filter: none;
      padding: clamp(6px, .8vw, 10px) clamp(12px, 1.5vw, 18px);
      border-radius: 999px;
      gap: clamp(10px, 1.3vw, 16px);
    }
    .tag-lockup.brand-lockup img,
    .corner-logo.brand-lockup img { height: clamp(13px, 1.4vw, 18px); }
    .tag-lockup.brand-lockup .bl-aeb,
    .corner-logo.brand-lockup .bl-aeb,
    .tag-lockup.brand-lockup .bl-tts,
    .corner-logo.brand-lockup .bl-tts { height: clamp(10px, 1.05vw, 13px); }
    /* AEB 與 tts 等寬（依 tts 比例換算，改以寬度對齊） */
    .tag-lockup.brand-lockup .bl-aeb,
    .corner-logo.brand-lockup .bl-aeb,
    .tag-lockup.brand-lockup .bl-tts,
    .corner-logo.brand-lockup .bl-tts { height: auto; width: clamp(47px, 4.88vw, 60px); }
    #details .card-visual .visual-logo.brand-lockup img { height: clamp(13px, 1.35vw, 18px); }
    #details .card-visual .visual-logo.brand-lockup .bl-aeb { height: clamp(10px, 1.02vw, 13px); }
    #details .card-visual .visual-logo.brand-lockup { gap: clamp(14px, 1.7vw, 22px); }
    #details .card-visual .visual-logo.brand-lockup .bl-tts { height: clamp(10px, 1.02vw, 13px); }
    #details .card-visual .visual-logo.brand-lockup .bl-aeb,
    #details .card-visual .visual-logo.brand-lockup .bl-tts { height: auto; width: clamp(47px, 4.74vw, 60px); }
    .tag-logo {
      height: clamp(30px, 2.4vw, 40px);
      width: auto;
      margin-right: 4px;
      flex: 0 0 auto;
      filter: drop-shadow(0 3px 12px rgba(0,0,0,.4));
    }

    /* 共用品牌鎖定：acer｜AEB ＋ 大鐸(tts)，白色 logo 置於半透明深色玻璃底，任何背景皆可辨識 */
    .brand-lockup {
      display: inline-flex;
      align-items: center;
      flex-wrap: nowrap;
      gap: clamp(18px, 2.4vw, 34px);
      padding: clamp(7px, .9vw, 11px) clamp(13px, 1.6vw, 20px);
      background: rgba(12, 45, 70, .42);
      -webkit-backdrop-filter: blur(6px);
      backdrop-filter: blur(6px);
      border: 1px solid rgba(255, 255, 255, .18);
      border-radius: 999px;
      box-shadow: 0 6px 20px rgba(12, 45, 70, .22);
    }
    .brand-lockup img { display: block; width: auto; }
    .brand-lockup .bl-div {
      width: 1px;
      align-self: stretch;
      margin: 2px 0;
      background: rgba(255, 255, 255, .38);
    }

    .gate-title .gate-logo.brand-lockup {
      display: inline-flex;
      flex-wrap: nowrap;
      width: max-content;
      max-width: calc(100vw - 24px);
      margin: 0 auto;
      filter: none;
      white-space: nowrap;
    }
    .gate-logo.brand-lockup img { height: clamp(15px, 3.4vw, 30px); flex: 0 0 auto; }
    .gate-logo.brand-lockup .bl-aeb { height: clamp(11px, 2.5vw, 22px); }
    .gate-logo.brand-lockup .bl-tts { height: clamp(11px, 2.5vw, 22px); }
    .gate-logo.brand-lockup .bl-aeb,
    .gate-logo.brand-lockup .bl-tts { height: auto; width: clamp(51px, 11.6vw, 102px); }

    /* 品牌標：參加活動／有關 AEB 卡放在右上角 */
    .corner-logo {
      position: absolute;
      top: clamp(16px, 2vw, 28px);
      right: clamp(20px, 2.4vw, 40px);
      z-index: 6;
      height: clamp(30px, 2.4vw, 40px);
      width: auto;
      filter: drop-shadow(0 3px 12px rgba(0,0,0,.4));
    }

    /* 參加活動卡右上角：前往 AEB 電子雜誌按鈕（選完單位後才顯示） */
    .corner-aeb-btn {
      position: absolute;
      top: clamp(16px, 2vw, 28px);
      right: clamp(20px, 2.4vw, 40px);
      z-index: 7;
      display: inline-flex;
      align-items: center;
      padding: 9px 18px;
      border: 1px solid rgba(255,255,255,.35);
      border-radius: 999px;
      background: linear-gradient(135deg, #1f7fa8, #0f5b80);
      color: #fff;
      font-size: clamp(.9rem, 1vw, 1rem);
      font-weight: 700;
      letter-spacing: .02em;
      text-decoration: none;
      white-space: nowrap;
      box-shadow: 0 6px 18px rgba(0,0,0,.28);
      transition: transform .18s ease, box-shadow .18s ease, filter .18s ease;
    }

    .corner-aeb-btn:hover {
      transform: translateY(-1px);
      filter: brightness(1.06);
      box-shadow: 0 10px 24px rgba(0,0,0,.32);
    }

    .corner-aeb-btn[hidden] { display: none; }

    .skip-intro {
      position: fixed;
      right: 20px;
      bottom: 20px;
      z-index: 1001;
      padding: 10px 14px;
      border: 1px solid rgba(255,255,255,.2);
      border-radius: 999px;
      color: #fff;
      background: rgba(20,34,24,.55);
      backdrop-filter: blur(10px);
      cursor: pointer;
    }

    @keyframes openLeft {
      from { transform: perspective(1200px) rotateY(0deg) translateX(0); }
      to { transform: perspective(1200px) rotateY(-103deg) translateX(-12vw); }
    }

    @keyframes openRight {
      from { transform: perspective(1200px) rotateY(0deg) translateX(0); }
      to { transform: perspective(1200px) rotateY(103deg) translateX(12vw); }
    }

    @keyframes titleFade {
      from { opacity: 1; transform: translateY(0); }
      to { opacity: 0; transform: translateY(-18px); }
    }

    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      .intro-gate { display: none; }
      *, *::before, *::after {
        animation-duration: .001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .001ms !important;
      }
    }

    /* ===== 全版卡牌 ===== */
    main,
    .cards-stage,
    .carousel-wrap {
      width: 100vw;
      height: 100vh;
      height: 100svh;
    }

    .cards-stage {
      position: relative;
      overflow: hidden;
    }

    .cards-stage::before {
      content: "";
      position: absolute;
      inset: 0;
      pointer-events: none;
      background:
        linear-gradient(90deg, rgba(40,90,120,.20), transparent 12%, transparent 88%, rgba(40,90,120,.20)),
        radial-gradient(circle at 50% 96%, rgba(38,150,190,.12), transparent 36%);
      z-index: 1;
    }

    .carousel-wrap {
      position: relative;
      overflow: hidden;
    }

    .cards-carousel {
      position: relative;
      z-index: 2;
      width: 100%;
      height: 100%;
      display: flex;
      align-items: center;
      gap: clamp(18px, 2.1vw, 34px);
      overflow-x: hidden;
      overflow-y: hidden;
      scroll-behavior: smooth;
      scroll-padding-inline: var(--edge-pad);
      padding: 18px var(--edge-pad);
      scrollbar-width: none;
      cursor: grab;
      touch-action: pan-y;
    }

    .cards-carousel.dragging {
      scroll-behavior: auto;
      cursor: grabbing;
      user-select: none;
    }

    .cards-carousel::-webkit-scrollbar { display: none; }

    .event-card {
      position: relative;
      flex: 0 0 var(--side-card);
      height: min(680px, calc(100svh - 92px));
      display: grid;
      grid-template-rows: 190px 1fr;
      overflow: hidden;
      scroll-snap-align: center;
      scroll-snap-stop: always;
      border: 1px solid rgba(28,55,78,.12);
      border-radius: var(--radius);
      opacity: .5;
      transform: scale(.84);
      background:
        linear-gradient(180deg, rgba(255,255,255,.95), rgba(255,255,255,.82)),
        #ffffff;
      box-shadow: 0 18px 50px rgba(28,55,78,.16);
      transition:
        flex-basis .32s ease,
        height .32s ease,
        opacity .32s ease,
        transform .32s ease,
        border-color .32s ease,
        background .32s ease,
        box-shadow .32s ease;
    }

    .event-card.is-selected {
      z-index: 3;
      flex-basis: var(--center-card);
      height: var(--card-height);
      grid-template-columns: minmax(230px, 28%) minmax(0, 1fr);
      grid-template-rows: 1fr;
      opacity: 1;
      transform: scale(1);
      border-color: rgba(108, 174, 62, .72);
      background:
        linear-gradient(180deg, rgba(38,150,190,.12), rgba(255,255,255,.9)),
        #ffffff;
      box-shadow: var(--shadow);
    }

    .event-card:not(.is-selected) { cursor: pointer; }

    .event-card:not(.is-selected):hover {
      opacity: .78;
      transform: scale(.88) translateY(-3px);
      border-color: rgba(38,150,190,.4);
    }

    .card-visual {
      min-height: 0;
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 16px;
      padding: 22px;
      background:
        radial-gradient(circle at 20% 18%, rgba(255,255,255,.32), transparent 22%),
        linear-gradient(135deg, rgba(38,150,190,.88), rgba(55,182,201,.74));
      transition: padding .32s ease;
    }

    .event-card.is-selected .card-visual {
      height: auto;
      flex-direction: column;
      align-items: flex-start;
      justify-content: flex-end;
      padding: clamp(28px, 4vw, 54px);
    }

    /* 三張卡片：統一底色，圖片右緣羽化到同色，消除接縫 */
    #details.event-card.is-selected,
    #join.event-card.is-selected,
    #products.event-card.is-selected,
    #winners.event-card.is-selected {
      background: #f6f1e6;
    }

    #details .card-visual,
    #join .card-visual,
    #products .card-visual,
    #winners .card-visual {
      position: relative;
      overflow: hidden;
      background: linear-gradient(180deg, #bfe1f4 0%, #d6eef2 55%, #f6f1e6 100%);
    }

    /* 點點層：緩慢飄移 */
    #details .card-visual::before,
    #join .card-visual::before,
    #products .card-visual::before,
    #winners .card-visual::before {
      content: "";
      position: absolute;
      inset: 0;
      background: url("./image/aeb_eruse0826/Background_aeb_eruse0826.png") center / cover no-repeat;
      z-index: 0;
    }

    /* 視覺區特效：陽光微渲染 + 落葉 */
    .visual-fx {
      position: absolute !important;
      inset: 0 !important;
      z-index: 2;
      pointer-events: none;
      overflow: hidden;
    }

    .visual-fx .sun {
      position: absolute;
      top: -34%;
      left: -16%;
      width: 104%;
      aspect-ratio: 1 / 1;
      background:
        conic-gradient(from 0deg at 42% 42%,
          rgba(255,250,224,0) 0deg, rgba(255,250,224,.5) 5deg, rgba(255,250,224,0) 12deg,
          rgba(255,250,224,0) 26deg, rgba(255,250,224,.42) 31deg, rgba(255,250,224,0) 38deg,
          rgba(255,250,224,0) 54deg, rgba(255,250,224,.5) 59deg, rgba(255,250,224,0) 66deg,
          rgba(255,250,224,0) 82deg, rgba(255,250,224,.4) 87deg, rgba(255,250,224,0) 94deg,
          rgba(255,250,224,0) 112deg, rgba(255,250,224,.46) 117deg, rgba(255,250,224,0) 124deg,
          rgba(255,250,224,0) 360deg),
        radial-gradient(circle at 42% 42%,
          rgba(255,255,250,1) 0%,
          rgba(255,250,226,.82) 18%,
          rgba(255,244,202,.55) 36%,
          rgba(255,238,184,.32) 54%,
          rgba(255,236,180,.14) 70%,
          transparent 84%);
      -webkit-mask: radial-gradient(circle at 42% 42%, #000 10%, rgba(0,0,0,.72) 40%, transparent 82%);
      mask: radial-gradient(circle at 42% 42%, #000 10%, rgba(0,0,0,.72) 40%, transparent 82%);
      animation: sunBeam 9s cubic-bezier(.45,0,.55,1) infinite;
      will-change: opacity, transform;
    }

    @keyframes sunBeam {
      0%   { opacity: .6; transform: scale(.94); }
      50%  { opacity: 1; transform: scale(1.14); }
      100% { opacity: .6; transform: scale(.94); }
    }

    .visual-fx .mote {
      position: absolute;
      top: 8%;
      width: var(--ms, 6px);
      height: var(--ms, 6px);
      border-radius: 50%;
      background: radial-gradient(circle, rgba(255,252,235,.95) 0%, rgba(255,246,210,.6) 40%, transparent 72%);
      opacity: 0;
      mix-blend-mode: screen;
      animation: moteDrift var(--md, 16s) ease-in-out var(--mdl, 0s) infinite;
      will-change: top, transform, opacity;
    }

    @keyframes moteDrift {
      0%   { top: 92%; transform: translateX(0) scale(.7); opacity: 0; }
      12%  { opacity: .9; }
      40%  { transform: translateX(calc(var(--mdx, 20px) * 1)) scale(1); }
      70%  { transform: translateX(calc(var(--mdx, 20px) * -.6)) scale(.85); opacity: .8; }
      90%  { opacity: .5; }
      100% { top: 4%; transform: translateX(calc(var(--mdx, 20px) * .8)) scale(.65); opacity: 0; }
    }

    .visual-fx .leaf {
      position: absolute;
      top: -14%;
      width: var(--lw, 52px);
      height: auto;
      opacity: 0;
      filter: drop-shadow(0 6px 9px rgba(20,40,20,.24)) sepia(.28) saturate(1.15) hue-rotate(-12deg);
      animation: leafFall var(--dur, 13s) ease-in-out var(--delay, 0s) infinite;
      will-change: top, transform, opacity;
    }

    @keyframes leafFall {
      0%   { top: -14%; transform: translateX(0) rotate(0deg); opacity: 0; }
      6%   { opacity: .95; }
      22%  { transform: translateX(calc(var(--dx, -40px) * 1.4)) rotate(calc(var(--rot, 300deg) * .22)); }
      42%  { transform: translateX(calc(var(--dx, -40px) * -0.5)) rotate(calc(var(--rot, 300deg) * .45)); }
      62%  { transform: translateX(calc(var(--dx, -40px) * 1.7)) rotate(calc(var(--rot, 300deg) * .68)); }
      82%  { transform: translateX(calc(var(--dx, -40px) * 0.2)) rotate(calc(var(--rot, 300deg) * .88)); opacity: .95; }
      100% { top: 116%; transform: translateX(calc(var(--dx, -40px) * 1.2)) rotate(var(--rot, 300deg)); opacity: 0; }
    }

    @media (prefers-reduced-motion: reduce) {
      .visual-fx .leaf,
      .visual-fx .mote { display: none; }
    }

    /* 漸層遮罩層：蓋在點點上、文字下 */
    #details .card-visual::after,
    #join .card-visual::after,
    #products .card-visual::after,
    #winners .card-visual::after {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(90deg, transparent 60%, rgba(246,241,230,.55) 84%, #f6f1e6 100%);
      z-index: 1;
    }

    #details .card-visual > *,
    #join .card-visual > *,
    #products .card-visual > *,
    #winners .card-visual > * {
      position: relative;
      z-index: 2;
    }

    @keyframes dotDrift {
      0%   { transform: translate3d(0, 0, 0) scale(1.02); }
      50%  { transform: translate3d(-3%, -2.5%, 0) scale(1.06); }
      100% { transform: translate3d(2.5%, 1.5%, 0) scale(1.03); }
    }

    #details .card-body,
    #join .card-body,
    #products .card-body,
    #winners .card-body {
      background: #f6f1e6;
    }

    #details .card-visual strong,
    #join .card-visual strong,
    #products .card-visual strong,
    #winners .card-visual strong {
      color: #fdf6ea;
      text-shadow: 0 2px 6px rgba(0,0,0,.55), 0 4px 22px rgba(0,0,0,.5);
    }

    .card-visual strong {
      color: #3a3229;
      font-family: "Noto Sans TC", ui-sans-serif, system-ui, sans-serif;
      font-weight: 900;
      font-size: clamp(1.4rem, 2.2vw, 2.1rem);
      line-height: 1.05;
      letter-spacing: .02em;
    }

    .event-card.is-selected .card-visual strong {
      font-size: clamp(2.6rem, 5vw, 4.6rem);
      line-height: 1.02;
      letter-spacing: .04em;
    }

    .card-number {
      width: 54px;
      height: 54px;
      display: grid;
      place-items: center;
      flex: 0 0 auto;
      border-radius: 18px;
      color: #07101f;
      background: rgba(255,255,255,.52);
      font-weight: 1000;
    }

    .event-card.is-selected .card-number {
      width: 70px;
      height: 70px;
      border-radius: 22px;
      font-size: 1.1rem;
    }

    .card-body {
      min-height: 0;
      display: flex;
      flex-direction: column;
      gap: 16px;
      padding: 22px;
      overflow: auto;
      scrollbar-width: thin;
      scrollbar-color: rgba(28,55,78,.28) transparent;
      scrollbar-gutter: stable;
    }

    .card-body::-webkit-scrollbar {
      width: 8px;
    }

    .card-body::-webkit-scrollbar-track {
      background: transparent;
    }

    .card-body::-webkit-scrollbar-thumb {
      background: rgba(28,55,78,.24);
      border-radius: 999px;
      border: 2px solid transparent;
      background-clip: padding-box;
    }

    .card-body::-webkit-scrollbar-thumb:hover {
      background: rgba(28,55,78,.4);
      background-clip: padding-box;
    }

    .event-card.is-selected .card-body {
      gap: clamp(16px, 1.8vw, 24px);
      padding: clamp(8px, 1.2vw, 16px) clamp(24px, 4vw, 54px) clamp(16px, 2vw, 26px);
      margin: clamp(8px, 1vw, 16px) 10px clamp(20px, 2.4vw, 38px) 0;
      border-radius: 0 12px 12px 0;
    }

    /* 活動說明卡右上角 CTA */
    .card-cta-top {
      position: absolute;
      top: clamp(14px, 1.8vw, 26px);
      right: clamp(34px, 4vw, 60px);
      z-index: 6;
    }

    /* 必填說明（縮小字體） */
    .required-note {
      color: var(--muted);
      font-size: .82rem !important;
      margin: 0;
    }

    /* 姓名＋學號並排 */
    .name-pair {
      grid-column: 1 / -1;
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 10px;
    }

    /* 系級／姓名／學號 三欄並排（本人與好友） */
    .info-trio,
    .friend-trio {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 10px;
    }

    .info-trio { grid-column: 1 / -1; }

    /* 個資同意浮動視窗 */
    .consent-box[hidden] { display: none; }

    .consent-box {
      position: fixed;
      inset: 0;
      z-index: 50;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      gap: 0;
      padding: 24px;
      background: rgba(6, 9, 16, .62);
      backdrop-filter: blur(6px);
    }

    .consent-inner {
      width: min(560px, 92vw);
      max-height: 82vh;
      overflow: auto;
      display: grid;
      gap: 14px;
      padding: 26px 26px 22px;
      border: 1px solid rgba(28,55,78,.12);
      border-radius: 20px;
      background: #ffffff;
      box-shadow: 0 32px 90px rgba(0,0,0,.5);
    }

    .consent-inner h4 {
      margin: 0;
      font-size: 1.15rem;
      letter-spacing: -.02em;
    }

    .consent-box p {
      margin: 0;
      color: var(--muted);
      font-size: .9rem !important;
      line-height: 1.75;
    }

    .consent-list {
      margin: 0;
      padding-left: 1.3em;
      display: grid;
      gap: 8px;
      color: var(--muted);
      font-size: .88rem;
      line-height: 1.7;
      list-style: disc;
    }

    .consent-list ul {
      margin: 6px 0 0;
      padding-left: 1.3em;
      display: grid;
      gap: 4px;
      list-style: circle;
    }

    /* 個人閱讀週提醒浮動視窗 */
    .promo-modal[hidden] { display: none; }

    .promo-modal {
      position: fixed;
      inset: 0;
      z-index: 60;
      display: flex;
      justify-content: center;
      align-items: center;
      padding: 24px;
      background: rgba(6, 9, 16, .62);
      backdrop-filter: blur(6px);
    }

    .promo-inner {
      position: relative;
      width: min(500px, 92vw);
      display: grid;
      gap: 14px;
      padding: 30px 28px 26px;
      border: 1px solid rgba(38,150,190,.35);
      border-radius: 22px;
      background: linear-gradient(160deg, #ffffff, #f4f6f0 65%);
      box-shadow: 0 32px 90px rgba(0,0,0,.55);
      text-align: center;
    }

    .promo-badge {
      justify-self: center;
      padding: 6px 16px;
      border-radius: 999px;
      font-size: .82rem;
      font-weight: 700;
      letter-spacing: .04em;
      color: #07101f;
      background: linear-gradient(135deg, var(--brand), var(--brand-2));
    }

    .promo-inner h3 {
      margin: 0;
      font-size: clamp(1.4rem, 2.4vw, 1.85rem);
      letter-spacing: -.02em;
    }

    .promo-inner .promo-main {
      margin: 0;
      color: var(--text);
      font-size: 1rem;
      line-height: 1.75;
    }

    .promo-inner .promo-note {
      margin: 0;
      color: var(--muted);
      font-size: .9rem;
      line-height: 1.6;
    }

    .promo-x { color: #ff6b6b; font-weight: 700; }

    .promo-inner .pill-btn { justify-self: center; margin-top: 4px; min-width: 140px; }

    .consent-box .pill-btn { justify-self: center; margin-top: 4px; }

    /* 貴校電子資源網址：標題列 + 連結、補充說明 */
    .res-url-head {
      display: flex;
      align-items: baseline;
      justify-content: space-between;
      gap: 12px;
      flex-wrap: wrap;
    }

    .resource-link {
      color: var(--brand);
      font-size: .9rem;
      font-weight: 700;
      text-decoration: none;
      white-space: nowrap;
    }

    .resource-link:hover { text-decoration: underline; }

    /* 唯讀但可選取複製 */
    .res-url-row {
      display: flex;
      align-items: stretch;
      gap: 8px;
    }

    .res-url-row .res-url-input { flex: 1 1 auto; min-width: 0; }

    .res-url-copy {
      flex: 0 0 auto;
      padding: 0 16px;
      border: 1px solid var(--brand);
      border-radius: 10px;
      background: #fff;
      color: var(--brand);
      font-family: inherit;
      font-size: .95rem;
      font-weight: 700;
      cursor: pointer;
      white-space: nowrap;
      transition: background .18s ease, color .18s ease;
    }

    .res-url-copy:hover { background: var(--brand); color: #fff; }
    .res-url-copy:disabled { opacity: .45; cursor: not-allowed; }

    .res-url-input[readonly] {
      background: rgba(0, 0, 0, .04);
      color: #2b3a44;
      cursor: text;
      user-select: all;
      -webkit-user-select: all;
    }

    .field-hint {
      display: block;
      color: var(--muted);
      font-size: .82rem;
      line-height: 1.6;
      font-weight: 400;
    }

    .friend-hint {
      grid-column: 1 / -1;
      margin: 0;
      color: var(--muted);
      font-size: .84rem !important;
      line-height: 1.7;
    }

    .hl-red { color: #ff6b6b; font-weight: 700; }

    /* 「2026 獎金等你拿」小標：刮刮卡銀色金屬（靜態、不可刮）*/
    .promo-head {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      gap: 8px;
    }

    .promo-tag {
      display: inline-block;
      margin: 0;
      padding: 5px 16px;
      border-radius: 11px;
      border: 1px solid rgba(120,90,40,.28);
      background: linear-gradient(135deg, #f4e8cd 0%, #e6d1a2 52%, #efe3c6 100%);
      color: #7a5a25;
      font-weight: 800;
      font-size: .9rem;
      letter-spacing: .1em;
      box-shadow: inset 0 1px 0 rgba(255,255,255,.6), 0 3px 10px rgba(150,112,42,.18);
    }

    /* 著作權宣告：卡片內容底部 */
    .card-copyright {
      margin: 22px 0 0;
      padding-top: 16px;
      border-top: 1px solid rgba(28,55,78,.1);
      color: var(--muted);
      font-size: .78rem !important;
      line-height: 1.6;
      opacity: .8;
    }

    /* 主辦單位：與版權宣告成一組，共用上方分隔線 */
    .card-organizer {
      margin: 22px 0 0;
      padding-top: 16px;
      border-top: 1px solid rgba(28,55,78,.1);
      color: var(--muted);
      font-size: .78rem !important;
      line-height: 1.6;
      opacity: .85;
    }

    .card-organizer + .card-copyright {
      margin-top: 2px;
      padding-top: 0;
      border-top: none;
    }

    .card-body h2,
    .card-body h3 {
      margin: 0;
      color: #0c4d73;
      font-size: clamp(1.24rem, 2.4vw, 2.15rem);
      letter-spacing: -.04em;
    }

    .event-card.is-selected .card-body h2,
    .event-card.is-selected .card-body h3 {
      font-size: clamp(1.8rem, 3.2vw, 3.2rem);
      line-height: 1.02;
    }

    .card-body p,
    .card-body li {
      color: var(--muted);
      line-height: 1.75;
    }

    .event-card.is-selected .card-body p,
    .event-card.is-selected .card-body li {
      font-size: clamp(1rem, 1.22vw, 1.15rem);
    }

    .card-body p { margin: 0; }

    .card-body ul {
      margin: 0;
      padding-left: 1.15em;
    }

    /* 得獎注意事項：手動一、二…編號，移除項目符號並用垂懸縮排 */
    .card-body ul.notice-list {
      padding-left: 0;
      list-style: none;
      display: grid;
      gap: 10px;
    }

    .card-body ul.notice-list li {
      padding-left: 1em;
      text-indent: -1em;
      line-height: 1.75;
    }

    .tag-row {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
    }

    .tag {
      min-height: 30px;
      display: inline-flex;
      align-items: center;
      padding: 6px 10px;
      border: 1px solid rgba(28,55,78,.14);
      border-radius: 999px;
      color: var(--muted);
      background: rgba(28,55,78,.04);
      font-size: .88rem;
    }

    .event-card.is-selected .tag {
      min-height: 34px;
      padding: 7px 12px;
      font-size: .95rem;
    }

    .card-footer {
      margin-top: auto;
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
    }

    .pill-btn {
      min-height: 42px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 15px;
      border: 1px solid rgba(28,55,78,.16);
      border-radius: 999px;
      color: var(--text);
      background: rgba(28,55,78,.05);
      text-decoration: none;
      cursor: pointer;
    }

    .pill-btn:hover { background: rgba(28,55,78,.09); }

    .pill-btn.primary {
      border-color: rgba(255,255,255,.28);
      color: #ffffff;
      background: linear-gradient(135deg, #0f6ea3 0%, #1682b6 40%, #2ba3bf 72%, #37b6c9 100%);
      font-weight: 900;
      text-shadow: 0 1px 3px rgba(6,40,60,.4);
    }

    /* 電腦版首次進站的鍵盤提示 */
    .key-hint {
      position: fixed;
      left: 50%;
      top: 50%;
      z-index: 40;
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 10px 18px;
      border: 1px solid rgba(255,255,255,.4);
      border-radius: 999px;
      background: rgba(16,48,68,.82);
      backdrop-filter: blur(6px);
      color: #fff;
      font-size: .95rem;
      letter-spacing: .02em;
      box-shadow: 0 10px 28px rgba(0,0,0,.28);
      opacity: 0;
      transform: translate(-50%, calc(-50% + 12px));
      transition: opacity .35s ease, transform .35s ease;
      pointer-events: none;
    }

    .key-hint.is-on { opacity: 1; transform: translate(-50%, -50%); }

    .key-cap {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 26px;
      height: 26px;
      border: 1px solid rgba(255,255,255,.55);
      border-radius: 7px;
      background: rgba(255,255,255,.14);
      font-weight: 700;
    }

    @media (max-width: 1024px) { .key-hint { display: none; } }

    /* 聯絡信箱：點擊複製，同時保留 mailto */
    .mail-copy { position: relative; }

    .mail-copy.is-copied::after {
      content: '已複製信箱';
      position: absolute;
      left: 50%;
      bottom: calc(100% + 6px);
      transform: translateX(-50%);
      padding: 4px 10px;
      border-radius: 999px;
      background: rgba(16,48,68,.9);
      color: #fff;
      font-size: .78rem;
      white-space: nowrap;
      pointer-events: none;
    }

    /* ===== 控制元件：浮在卡牌上，不佔版面高度 ===== */
    .dots {
      position: absolute;
      z-index: 8;
      left: 50%;
      bottom: clamp(18px, 2.4vh, 28px);
      display: flex;
      justify-content: center;
      gap: 8px;
      padding: 9px 11px;
      border: 1px solid rgba(255,255,255,.12);
      border-radius: 999px;
      background: rgba(8, 11, 20, .42);
      backdrop-filter: blur(14px);
      transform: translateX(-50%);
      transition: opacity .45s ease;
    }

    /* 手機版閒置時淡出，觸碰／滑動再浮現 */
    .dots.is-idle {
      opacity: .16;
    }

    .dot {
      width: 10px;
      height: 10px;
      padding: 0;
      border: 0;
      border-radius: 999px;
      background: rgba(255,255,255,.32);
      cursor: pointer;
      transition: width .2s ease, background .2s ease;
    }

    .dot.is-active {
      width: 30px;
      background: linear-gradient(135deg, var(--brand), var(--brand-2));
    }

    /* ===== Form ===== */
    .form-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 12px;
    }

    .form-grid .full { grid-column: 1 / -1; }

    label {
      display: grid;
      gap: 7px;
      color: var(--muted);
      font-size: .92rem;
    }

    input,
    select,
    textarea {
      width: 100%;
      padding: 12px 13px;
      border: 1px solid rgba(28,55,78,.18);
      border-radius: 16px;
      color: var(--text);
      background: #ffffff;
      outline: none;
    }

    /* 學校名稱下拉：選單文字黑色、自訂箭頭靠左一些 */
    #schoolSelect {
      -webkit-appearance: none;
      -moz-appearance: none;
      appearance: none;
      padding-right: 46px;
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='9' viewBox='0 0 14 9'%3E%3Cpath d='M1 1l6 6 6-6' fill='none' stroke='%235f6f63' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
      background-repeat: no-repeat;
      background-position: right 18px center;
    }

    #schoolSelect option {
      color: #111;
      background: #fff;
    }

    /* 填寫前後保持相同底色與文字色（抵銷瀏覽器自動填入樣式） */
    input:-webkit-autofill,
    input:-webkit-autofill:hover,
    input:-webkit-autofill:focus,
    textarea:-webkit-autofill,
    select:-webkit-autofill {
      -webkit-text-fill-color: var(--text);
      caret-color: var(--text);
      transition: background-color 9999s ease-out 0s;
      box-shadow: 0 0 0 1000px #ffffff inset;
    }

    input:focus,
    select:focus,
    textarea:focus {
      border-color: rgba(38,150,190,.8);
      box-shadow: 0 0 0 4px rgba(38,150,190,.13);
    }

    textarea {
      min-height: 92px;
      resize: vertical;
    }

    .form-status {
      display: none;
      margin: 0;
      padding: 13px 16px;
      border: 0;
      border-radius: 14px;
      color: #fff;
      background: linear-gradient(135deg, #1682b6, #37b6c9);
      box-shadow: 0 6px 16px rgba(22,130,182,.28);
      font-weight: 700;
      line-height: 1.5;
    }

    .form-status.is-error {
      background: linear-gradient(135deg, #e05a5a, #d13d3d);
      box-shadow: 0 6px 16px rgba(209,61,61,.26);
      color: #fff;
    }

    .form-status.is-show { display: flex; align-items: center; gap: 10px; }
    .form-status.is-show::before { content: '\2713'; font-size: 1.05em; font-weight: 900; }
    .form-status.is-error.is-show::before { content: '\2715'; }
    .event-card .card-body p.form-status,
    .event-card.is-selected .card-body p.form-status { color: #fff; }

    /* 得獎公告表格 */
    .winners-h3 {
      margin-top: 22px;
    }

    .winners-toggle {
      display: flex;
      align-items: center;
      gap: 10px;
      cursor: pointer;
      user-select: none;
    }

    .winners-caret {
      display: inline-block;
      font-size: .42em;
      color: #ffb454;
      transition: transform .2s ease;
    }

    .winners-toggle.is-open .winners-caret {
      transform: rotate(90deg);
    }

    .winners-table-wrap {
      width: 100%;
      flex: 0 0 auto;
      border-radius: 12px;
      border: 1px solid rgba(28,55,78,.14);
      overflow: hidden;
    }

    .winners-table {
      width: 100%;
      border-collapse: collapse;
      font-size: .95rem;
      table-layout: fixed;
    }

    .winners-table th,
    .winners-table td {
      padding: 11px 14px;
      text-align: left;
      border-bottom: 1px solid rgba(28,55,78,.1);
      word-break: break-word;
    }

    .winners-table thead th {
      background: rgba(38,150,190,.16);
      color: #3a3229;
      font-weight: 700;
      text-align: center;
    }

    .winners-table tbody td {
      color: #4a4235;
    }

    .winners-table tbody tr:last-child td { border-bottom: none; }

    .winners-empty {
      padding: 18px 14px !important;
      color: var(--muted);
      opacity: .8;
      text-align: center !important;
    }

    /* 手機版兩行式精簡卡片（桌機／平板隱藏，改由表格呈現） */
    .winners-cards { display: none; }

    .winners-cards .wc-row {
      padding: 12px 4px;
      border-bottom: 1px solid rgba(28,55,78,.1);
    }
    .winners-cards .wc-row:last-child { border-bottom: none; }
    .winners-cards .wc-top {
      display: flex;
      justify-content: space-between;
      align-items: baseline;
      gap: 0;
    }
    .winners-cards .wc-school {
      font-weight: 700;
      font-size: .98rem;
      min-width: 0;
      flex: 1 1 auto;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .winners-cards .wc-name {
      font-weight: 700;
      color: var(--brand);
      white-space: nowrap;
      flex: 0 0 auto;
      margin-left: 2em;
    }
    .winners-cards .wc-sub {
      margin-top: 5px;
      color: var(--muted);
      font-size: .82rem;
      line-height: 1.5;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .winners-cards .wc-dot { opacity: .5; margin: 0 6px; }

    /* 蜜罐欄位：完全隱藏，僅供機器人偵測 */
    .hp-field {
      position: absolute !important;
      left: -9999px !important;
      width: 1px;
      height: 1px;
      overflow: hidden;
      opacity: 0;
      pointer-events: none;
    }

    /* 提交成功浮動提示（電腦版以外顯示） */
    .submit-toast {
      position: fixed;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%) scale(.94);
      z-index: 10000;
      padding: 12px 26px;
      border-radius: 999px;
      background: linear-gradient(135deg, #1682b6, #37b6c9);
      color: #fff;
      font-size: 1rem;
      font-weight: 700;
      letter-spacing: .04em;
      box-shadow: 0 14px 40px rgba(22,130,182,.45);
      border: 0;
      opacity: 0;
      pointer-events: none;
      transition: opacity .28s ease, transform .28s ease;
    }

    .submit-toast.is-show {
      opacity: 1;
      transform: translate(-50%, -50%) scale(1);
    }
    .submit-toast::before { content: '\2713'; font-weight: 900; margin-right: 8px; }

    /* 未填必填／姓名重複的欄位以紅色粗框框起來 */
    .field-invalid,
    .field-invalid:focus {
      border-color: #ff6b6b !important;
      border-width: 2px !important;
      box-shadow: 0 0 0 2px rgba(255,107,107,.32) !important;
    }

    .friend-box {
      grid-column: 1 / -1;
      display: grid;
      gap: 10px;
      margin: 0;
      padding: 14px;
      border: 1px dashed rgba(28,55,78,.2);
      border-radius: 16px;
    }

    .friend-box legend {
      padding: 0 6px;
      color: var(--muted);
      font-size: .9rem;
    }

    .friend-box .friend-pair {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 10px;
    }

    .agree-row {
      grid-column: 1 / -1;
      display: flex;
      flex-direction: row;
      align-items: flex-start;
      gap: 10px;
      color: var(--muted);
      line-height: 1.5;
    }

    .agree-row input {
      width: auto;
      margin-top: 3px;
    }

    .agree-row a { color: var(--brand); }

    iframe[name="hidden_iframe"] { display: none; }

    /* ===== Product options ===== */
    .product-options {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
    }

    .product-option {
      display: grid;
      grid-template-rows: auto 1fr auto;
      gap: 12px;
      min-height: 180px;
      padding: 14px;
      border: 1px solid rgba(28,55,78,.13);
      border-radius: 20px;
      color: var(--text);
      background: rgba(28,55,78,.03);
      text-align: left;
      cursor: pointer;
    }

    .product-option:hover,
    .product-option.is-picked {
      border-color: rgba(90,205,220,.58);
      background: rgba(90,205,220,.08);
    }

    .product-thumb {
      width: 58px;
      height: 58px;
      display: grid;
      place-items: center;
      border-radius: 18px;
      background: linear-gradient(135deg, rgba(38,150,190,.34), rgba(55,182,201,.34));
      font-size: 1.45rem;
    }

    .product-option strong { display: block; margin-bottom: 4px; }
    .product-option span { color: var(--muted); font-size: .9rem; line-height: 1.48; }
    .pick-mark { color: var(--ok); font-weight: 900; opacity: .45; }
    .product-option.is-picked .pick-mark { opacity: 1; }

    /* ===== 雜誌刮刮卡 ===== */
    .scratch-note {
      display: block;
      margin: 6px 0 8px;
      font-weight: 400;
      color: var(--muted);
      font-size: .85rem;
      line-height: 1.5;
    }
    .scratch-note[hidden] { display: none; }

    #scratchNote { font-size: .92rem; }

    #aebMagLink { flex-direction: column; line-height: 1.15; gap: 2px; }

    .aeb-sub {
      font-size: .72em;
      font-weight: 600;
      opacity: .85;
    }

    .scratch-field {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: clamp(12px, 2vw, 18px);
      margin: 0 0 4px;
    }

    .magazine-row {
      display: flex;
      align-items: stretch;
      gap: 10px;
      margin-top: 4px;
    }

    .magazine-row #magazineNameInput {
      flex: 1 1 0;
      min-width: 0;
      margin: 0;
    }

    .scratch-card {
      position: relative;
      flex: 1 1 0;
      min-width: 120px;
      align-self: stretch;
      min-height: 46px;
      border-radius: 14px;
      overflow: hidden;
      border: 1px solid rgba(28,55,78,.14);
      background: linear-gradient(135deg, rgba(90,205,220,.20), rgba(38,150,190,.20) 55%, rgba(55,182,201,.18));
      box-shadow: inset 0 1px 0 rgba(255,255,255,.14), 0 12px 30px rgba(9,12,22,.30);
      transition: box-shadow .3s ease, transform .18s ease, min-height .3s ease;
    }
    .scratch-card.is-revealed { min-height: 54px; }

    .scratch-prize {
      position: absolute;
      inset: 0;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 3px;
      text-align: center;
      padding: 6px 10px;
      font-weight: 800;
      letter-spacing: .01em;
      color: var(--text);
    }
    .scratch-prize .prize-label {
      font-size: clamp(.62rem, 1.5vw, .74rem);
      font-weight: 700;
      letter-spacing: .12em;
      color: var(--brand);
    }
    .scratch-prize .prize-name {
      font-size: clamp(.95rem, 2.4vw, 1.18rem);
      font-weight: 800;
      line-height: 1.2;
      text-wrap: balance;
      color: var(--text);
    }
    .scratch-prize .prize-go {
      display: none;
      align-items: center;
      justify-content: center;
      gap: 7px;
      max-width: 100%;
      padding: 9px 20px;
      border-radius: 999px;
      background: linear-gradient(135deg, var(--brand), var(--brand-2));
      color: #fff;
      font-size: clamp(.92rem, 2.3vw, 1.14rem);
      font-weight: 800;
      letter-spacing: .01em;
      line-height: 1.18;
      text-align: center;
      text-wrap: balance;
      text-decoration: none;
      box-shadow: 0 6px 16px rgba(9,12,22,.24);
      transition: filter .18s ease, transform .18s ease;
    }
    .scratch-prize .prize-go::after { content: '\2192'; font-weight: 700; }
    .scratch-card.is-revealed .prize-label,
    .scratch-card.is-revealed .prize-name { display: none; }
    .scratch-card.is-revealed .prize-go { display: inline-flex; }
    .scratch-prize .prize-go:hover { filter: brightness(1.07); transform: translateY(-1px); }
    .scratch-prize .prize-go:active { transform: translateY(0); }

    .scratch-cover {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      cursor: grab;
      touch-action: none;
      -webkit-tap-highlight-color: transparent;
      transition: opacity .5s ease;
    }

    .scratch-cover:active { cursor: grabbing; }

    .scratch-card.is-revealed .scratch-cover {
      opacity: 0;
      pointer-events: none;
    }

    .scratch-card.is-revealed {
      box-shadow: 0 0 0 2px rgba(90,205,220,.7), 0 12px 30px rgba(9,12,22,.34);
    }

    /* 銀漆上方提示：自訂 SVG 金幣，左右刮動 */
    .scratch-hint {
      position: absolute;
      top: 50%;
      left: 50%;
      z-index: 3;
      line-height: 0;
      pointer-events: none;
      transform: translate(-50%, -50%);
      filter: drop-shadow(0 3px 6px rgba(0,0,0,.45));
      animation: scratchTap 1.6s ease-in-out infinite;
    }

    .scratch-hint svg { display: block; }

    .coin-glint {
      transform-box: fill-box;
      transform-origin: center;
      animation: coinGlint 1.6s ease-in-out infinite;
    }

    .scratch-card.is-revealed .scratch-hint {
      opacity: 0;
      transition: opacity .35s ease;
    }

    @keyframes scratchTap {
      0%, 100% { transform: translate(-118%, -50%) rotate(-18deg); }
      50%      { transform: translate(18%, -50%) rotate(14deg); }
    }

    @keyframes coinGlint {
      0%, 100% { opacity: .35; transform: scale(.85); }
      50%      { opacity: .85; transform: scale(1.1); }
    }

    .scratch-redo {
      flex: 0 0 auto;
      align-self: stretch;
      width: 46px;
      display: grid;
      place-items: center;
      border: 1px solid rgba(28,55,78,.16);
      border-radius: 12px;
      background: rgba(28,55,78,.04);
      color: var(--text);
      font-size: 1.35rem;
      line-height: 1;
      cursor: pointer;
      transition: background .18s ease, border-color .18s ease, transform .3s ease;
    }

    .scratch-redo:hover {
      background: rgba(90,205,220,.12);
      border-color: rgba(90,205,220,.5);
    }

    .scratch-redo:active { transform: rotate(-180deg); }

    @media (prefers-reduced-motion: reduce) {
      .scratch-card, .scratch-cover, .scratch-redo { transition: none; }
    }

    @media (min-width: 1500px) {
      :root {
        --center-card: min(2360px, 92vw);
        --side-card: clamp(320px, 13vw, 460px);
      }
    }

    @media (max-width: 980px) {
      :root {
        --center-card: 86vw;
        --side-card: 70vw;
        --card-height: calc(100svh - 40px);
        --edge-pad: max(18px, calc((100vw - var(--center-card)) / 2));
      }

      /* 得獎公告：手機／平板改用兩行式精簡卡片，隱藏完整表格 */
      #winners .winners-table { display: none; }
      #winners .winners-cards { display: block; }

      /* 平板／手機：只在「活動說明」卡顯示 logo */
      .corner-logo { display: none; }

      /* 平板／手機：不顯示右上角「前往AEB電子雜誌」按鈕 */
      .corner-aeb-btn { display: none !important; }

      /* 平板／手機：隱藏活動說明、有關 AEB 卡的 tag */
      #details .tag-row,
      #products .tag-row,
      #winners .tag-row { display: none; }

      /* 手機／平板：活動說明 logo 移到視覺區左上角，隱藏 tag 旁的 logo */
      #details .card-visual .visual-logo { display: block; }
      #details .card-visual .visual-logo.brand-lockup { display: inline-flex; }
      #details .tag-logo { display: none; }

      .cards-carousel {
        padding-block: 12px 24px;
        align-items: flex-start;
      }

      .event-card,
      .event-card.is-selected {
        grid-template-columns: 1fr;
        grid-template-rows: minmax(170px, 32svh) 1fr;
      }

      .event-card.is-selected .card-visual {
        padding: 24px;
      }

      .event-card.is-selected .card-visual strong {
        font-size: clamp(2.5rem, 13vw, 4.5rem);
      }

      .event-card.is-selected .card-number {
        width: 58px;
        height: 58px;
        border-radius: 18px;
      }

      .event-card.is-selected .card-body {
        padding: 22px;
      }

      .form-grid,
      .product-options {
        grid-template-columns: 1fr;
      }

      /* 平板／手機：本人與好友的三欄改為單欄堆疊 */
      .name-pair,
      .info-trio,
      .friend-trio { grid-template-columns: 1fr; }

      .product-option {
        min-height: 0;
        grid-template-columns: 54px 1fr auto;
        grid-template-rows: auto;
        align-items: center;
      }

      /* 指示器改成底部細進度線（分段顯示目前卡片） */
      .dots {
        left: 50%;
        bottom: 10px;
        transform: translateX(-50%);
        width: min(86vw, 480px);
        gap: 6px;
        padding: 0;
        border: 0;
        border-radius: 0;
        background: transparent;
        backdrop-filter: none;
      }

      .dot,
      .dot.is-active {
        flex: 1;
        width: auto;
        height: 4px;
        border-radius: 999px;
      }

      .dot { background: rgba(28,55,78,.22); }

      /* 提示可左右切頁：未選取的分段循序閃動（永續循環） */
      .dots.is-idle { opacity: 1; }

      .dot:not(.is-active) {
        animation: dotHint 5s ease-in-out infinite;
      }

      .dot:nth-child(1):not(.is-active) { animation-delay: 0s; }
      .dot:nth-child(2):not(.is-active) { animation-delay: .6s; }
      .dot:nth-child(3):not(.is-active) { animation-delay: 1.2s; }
      .dot:nth-child(4):not(.is-active) { animation-delay: 1.8s; }

      @keyframes dotHint {
        0%, 22%, 100% { background: rgba(28,55,78,.22); }
        10% { background: rgba(31,127,168,.85); }
      }

      @media (prefers-reduced-motion: reduce) {
        .dot:not(.is-active) { animation: none; }
      }

      .dot.is-active {
        background: linear-gradient(135deg, var(--brand), var(--brand-2));
      }
    }

    @media (max-width: 560px) {
      :root {
        --center-card: 88vw;
        --side-card: 78vw;
        --card-height: calc(100svh - 40px);
      }

      .cards-carousel { gap: 14px; }

      .event-card {
        opacity: .32;
        transform: scale(.88);
      }

      .event-card.is-selected { transform: scale(1); }
      .event-card:not(.is-selected):hover { transform: scale(.88); }

      /* 手機版：刮刮卡 + 重刮鈕橫排（雜誌名稱欄位已改為隱藏欄位） */
      .magazine-row {
        display: grid;
        grid-template-columns: 1fr auto;
        grid-template-areas: "card redo";
        align-items: stretch;
        gap: 10px;
      }

      .magazine-row .scratch-card {
        grid-area: card;
      }

      .magazine-row .scratch-redo { grid-area: redo; }

      /* 內容型卡片（參加活動／有關 AEB）改成「精簡標題列 + 大內文」， */
      /* 「活動說明」卡保留原本大字主視覺。 */
      .event-card.is-selected#join,
      .event-card.is-selected#products,
      .event-card.is-selected#winners {
        grid-template-rows: auto 1fr;
      }

      .card-visual,
      #join.is-selected .card-visual,
      #products.is-selected .card-visual,
      #winners.is-selected .card-visual {
        padding: 14px 18px;
      }

      #join.is-selected .card-visual,
      #products.is-selected .card-visual,
      #winners.is-selected .card-visual {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
      }

      #join.is-selected .card-visual strong,
      #products.is-selected .card-visual strong,
      #winners.is-selected .card-visual strong {
        font-size: clamp(1.5rem, 7.5vw, 2.1rem);
        line-height: 1;
        letter-spacing: -.04em;
      }

      /* 標題列上的直排換行改成橫排 */
      #join.is-selected .card-visual strong br,
      #products.is-selected .card-visual strong br,
      #winners.is-selected .card-visual strong br { display: none; }

      #join.is-selected .card-number,
      #products.is-selected .card-number {
        width: 42px;
        height: 42px;
        border-radius: 13px;
        font-size: .95rem;
      }

      .card-body,
      .event-card.is-selected .card-body {
        padding: 18px;
        margin: 0;
        border-radius: 0;
      }

      .product-option {
        grid-template-columns: 48px 1fr;
      }

      .pick-mark { display: none; }

      /* 手機版：隱藏重複標題，AEB 副標升為主標 */
      .card-title-hide { display: none; }

      /* 手機版：折行標題行距放寬一些，不要太擠 */
      .event-card.is-selected .card-body h2,
      .event-card.is-selected .card-body h3,
      #products.is-selected .aeb-subhead strong {
        line-height: 1.3;
      }

      #products.is-selected .aeb-subhead {
        margin: 0;
      }

      /* AEB「什麼是…」字級與「電子雜誌特色」一致 */
      #products.is-selected .aeb-subhead strong {
        font-size: clamp(1.8rem, 3.2vw, 3.2rem);
        line-height: 1.02;
        letter-spacing: -.04em;
        font-weight: 900;
      }

      /* AEB 底部按鈕平行置中 */
      #products.is-selected .card-footer {
        justify-content: center;
      }

      /* 姓名／學號、系級三欄在窄螢幕改為單欄堆疊 */
      .name-pair,
      .info-trio,
      .friend-trio { grid-template-columns: 1fr; }

      /* 手機版：電子資源連結改放在標題下方 */
      .res-url-head { flex-direction: column; align-items: flex-start; gap: 4px; }

      /* 右上角 CTA 在手機版縮小 */
      .card-cta-top {
        top: 12px;
        right: 12px;
      }

      .card-cta-top.pill-btn {
        padding: 8px 14px;
        font-size: .82rem;
      }

    }


/* 卡片視覺區特效：海面波光微閃 + 右上淡光束 */
.visual-fx { display: block; }

.visual-fx .sun {
  position: absolute;
  top: -18%;
  right: -22%;
  left: auto;
  width: 85%;
  aspect-ratio: 1 / 1;
  background:
    conic-gradient(from 190deg at 100% 0%,
      transparent 0deg,
      rgba(255,250,224,.30) 20deg, transparent 26deg,
      transparent 36deg, rgba(255,250,224,.22) 42deg, transparent 48deg,
      transparent 58deg, rgba(255,250,224,.34) 64deg, transparent 70deg,
      transparent 84deg, rgba(255,250,224,.20) 90deg, transparent 96deg,
      transparent 360deg),
    radial-gradient(circle at 100% 0%, rgba(255,252,235,.55), transparent 60%);
  -webkit-mask: radial-gradient(circle at 100% 0%, #000 8%, rgba(0,0,0,.6) 40%, transparent 74%);
  mask: radial-gradient(circle at 100% 0%, #000 8%, rgba(0,0,0,.6) 40%, transparent 74%);
  animation: rayShift 8s ease-in-out infinite;
  will-change: opacity, transform;
}

@keyframes rayShift {
  0%, 100% { opacity: .5; transform: rotate(-1.5deg) scale(1); }
  50%      { opacity: .85; transform: rotate(1.5deg) scale(1.05); }
}

.visual-fx .mote {
  position: absolute;
  top: 50%;
  width: var(--ms, 6px);
  height: var(--ms, 6px);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,.98) 0%, rgba(220,244,255,.6) 42%, transparent 72%);
  mix-blend-mode: screen;
  opacity: 0;
  animation: waterGlint 3.4s ease-in-out infinite;
  will-change: opacity, transform;
}

@keyframes waterGlint {
  0%, 100% { opacity: 0; transform: scale(.35); }
  50%      { opacity: .95; transform: scale(1); }
}

.visual-fx .mote:nth-child(2)  { top: 42%; animation-duration: 2.6s; animation-delay: 0s; }
.visual-fx .mote:nth-child(3)  { top: 55%; animation-duration: 3.2s; animation-delay: .7s; }
.visual-fx .mote:nth-child(4)  { top: 48%; animation-duration: 2.9s; animation-delay: 1.4s; }
.visual-fx .mote:nth-child(5)  { top: 60%; animation-duration: 3.6s; animation-delay: .4s; }
.visual-fx .mote:nth-child(6)  { top: 45%; animation-duration: 2.4s; animation-delay: 1.1s; }
.visual-fx .mote:nth-child(7)  { top: 58%; animation-duration: 3.0s; animation-delay: 1.8s; }
.visual-fx .mote:nth-child(8)  { top: 52%; animation-duration: 2.7s; animation-delay: .9s; }
.visual-fx .mote:nth-child(9)  { top: 46%; animation-duration: 3.4s; animation-delay: 2.1s; }
.visual-fx .mote:nth-child(10) { top: 62%; animation-duration: 2.8s; animation-delay: 1.6s; }
.visual-fx .mote:nth-child(11) { top: 50%; animation-duration: 3.1s; animation-delay: .3s; }

@media (prefers-reduced-motion: reduce) {
  .visual-fx .sun,
  .visual-fx .mote { animation: none; }
}

/* ===== 進場：潮水退去 ===== */
.tide-sheet {
  position: absolute;
  left: -3%;
  right: -3%;
  bottom: 0;
  height: 140%;
  background: linear-gradient(0deg, #37b6c9 0%, #1c7fb0 34%, #0f5f8c 100%);
  box-shadow: 0 20px 60px rgba(4,24,42,.28);
  will-change: transform;
  animation: tideOut 3s cubic-bezier(.6,0,.2,1) 3.2s both;
}

.tide-foam {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 34%;
  transform: translateY(52%);
  background: url("./image/aeb_eruse0826/foam_aeb_eruse0826.png") bottom center / 118% 100% no-repeat;
  filter: drop-shadow(0 6px 12px rgba(255,255,255,.45));
  pointer-events: none;
}

@keyframes tideOut {
  0%   { transform: translateY(6%); }
  100% { transform: translateY(-122%); }
}

@keyframes gateTitleIn {
  0%   { opacity: 0; }
  100% { opacity: 1; }
}

@keyframes gateFade {
  0%   { opacity: 1; }
  100% { opacity: 0; }
}

.tide-wash {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 55%;
  background: linear-gradient(0deg,
    rgba(255,255,255,.88) 0%,
    rgba(238,250,255,.4) 22%,
    rgba(255,255,255,.1) 50%,
    rgba(255,255,255,0) 100%);
  pointer-events: none;
}

.tide-foam-back {
  position: absolute;
  left: -6%;
  right: -6%;
  bottom: 22%;
  height: 26%;
  opacity: .15;
  transform: scaleX(-1);
  background: url("./image/aeb_eruse0826/foam5_aeb_eruse0826.png") bottom center / 190% 100% no-repeat;
  filter: blur(1.5px);
  pointer-events: none;
}

.tide-foam-mid {
  position: absolute;
  left: -4%;
  right: -4%;
  bottom: 13%;
  height: 30%;
  opacity: .5;
  background: url("./image/aeb_eruse0826/foam4_aeb_eruse0826.png") bottom center / 170% 100% no-repeat;
  pointer-events: none;
}

.tide-foam2 {
  position: absolute;
  left: -3%;
  right: -3%;
  bottom: 5%;
  height: 34%;
  opacity: .8;
  transform: translateY(26%) scaleX(-1);
  background: url("./image/aeb_eruse0826/foam3_aeb_eruse0826.png") bottom center / 150% 100% no-repeat;
  filter: drop-shadow(0 4px 10px rgba(255,255,255,.4));
  pointer-events: none;
}