/*
 * 来源：根目录 价格表_clean.html 与 液态玻璃按钮_clean.html；实际复制样式位于 reference-sponsor.css。
 * 本文件只负责页面编排与 Dialog/QR 容器；不表示付款状态，配置图片保持原样显示。
 */

@layer pages {
  .sponsor-hero {
    border-bottom: 1px solid var(--border);
    padding-block: clamp(4.5rem, 10vw, 8.5rem) clamp(3rem, 7vw, 5.5rem);
  }

  .sponsor-hero__inner {
    display: grid;
    grid-template-columns: minmax(0, 1.45fr) minmax(18rem, .55fr);
    align-items: end;
    gap: clamp(2rem, 7vw, 7rem);
  }

  .sponsor-hero__copy {
    max-width: 54rem;
  }

  .sponsor-kicker {
    margin: 0 0 1rem;
    color: var(--text-muted);
    font: 700 .72rem/1.3 var(--font-mono);
    letter-spacing: .14em;
  }

  .sponsor-hero h1 {
    max-width: 10ch;
    margin: 0;
    font-size: clamp(3.1rem, 8vw, 7.7rem);
    font-weight: 720;
    letter-spacing: -.065em;
    line-height: .92;
  }

  .sponsor-hero__lead {
    max-width: 45rem;
    margin: clamp(1.5rem, 3vw, 2.5rem) 0 0;
    color: var(--text-muted);
    font-size: clamp(1rem, 1.55vw, 1.2rem);
    line-height: 1.75;
  }

  .sponsor-hero__promise {
    margin: 0;
    border-top: 2px solid currentColor;
    padding-top: 1.15rem;
    color: var(--text-muted);
    font-size: .93rem;
    line-height: 1.75;
  }

  .sponsor-hero__promise strong {
    display: block;
    margin-bottom: .25rem;
    color: var(--text);
    font-size: 1.05rem;
  }

  .sponsor-options {
    padding-block: clamp(3.5rem, 8vw, 7rem);
  }

  .sponsor-options .sponsor-options__inner {
    width: min(calc(100% - 48px), 1380px);
  }

  .sponsor-section-head {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 2rem;
    margin-bottom: clamp(2rem, 5vw, 3.5rem);
  }

  .sponsor-section-head h2 {
    margin: 0;
    font-size: clamp(2rem, 4vw, 3.6rem);
    letter-spacing: -.045em;
  }

  .sponsor-section-head p {
    max-width: 34rem;
    margin: 0;
    color: var(--text-muted);
    line-height: 1.7;
  }

  .sponsor-unavailable,
  .sponsor-noscript {
    margin: 1.25rem auto 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface);
    padding: 1rem 1.15rem;
    color: var(--text-muted);
  }

  .sponsor-noscript {
    max-width: 52rem;
  }

  .sponsor-boundaries {
    border-top: 1px solid var(--border);
    padding-block: clamp(3rem, 7vw, 5.5rem);
  }

  .sponsor-boundaries__inner {
    display: grid;
    grid-template-columns: minmax(0, .72fr) minmax(0, 1.28fr);
    gap: clamp(2rem, 8vw, 8rem);
  }

  .sponsor-boundaries h2 {
    max-width: 8ch;
    margin: 0;
    font-size: clamp(1.8rem, 3.7vw, 3.25rem);
    letter-spacing: -.04em;
  }

  .sponsor-boundaries ul {
    margin: 0;
    padding: 0;
    list-style: none;
  }

  .sponsor-boundaries li {
    position: relative;
    border-top: 1px solid var(--border);
    padding: 1rem 0 1rem 2rem;
    color: var(--text-muted);
    line-height: 1.7;
  }

  .sponsor-boundaries li:last-child {
    border-bottom: 1px solid var(--border);
  }

  .sponsor-boundaries li::before {
    content: "";
    position: absolute;
    top: 1.55rem;
    left: .2rem;
    width: .58rem;
    height: .58rem;
    border: 1px solid currentColor;
    border-radius: 50%;
  }

  html.sponsor-dialog-open,
  body.sponsor-dialog-open {
    overflow: hidden;
  }

  .sponsor-dialog {
    width: min(calc(100vw - 24px), 560px);
    max-width: 560px;
    max-height: min(90dvh, 780px);
    overflow: auto;
    border: 1px solid var(--border-strong);
    border-radius: 20px;
    background: var(--surface);
    padding: 0;
    color: var(--text);
    box-shadow: 0 30px 80px rgb(0 0 0 / 34%);
    overscroll-behavior: contain;
  }

  .sponsor-dialog[open] {
    animation: sponsor-dialog-enter .28s cubic-bezier(.25, 1, .5, 1) both;
  }

  @keyframes sponsor-dialog-enter {
    from {
      opacity: 0;
      transform: translateY(8px) scale(.985);
    }
    to {
      opacity: 1;
      transform: translateY(0) scale(1);
    }
  }

  .sponsor-dialog::backdrop {
    background: rgb(5 10 18 / 70%);
    backdrop-filter: blur(7px);
  }

  .sponsor-dialog__panel {
    display: grid;
    gap: 1rem;
    padding: clamp(1.2rem, 4vw, 2rem);
  }

  .sponsor-dialog__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.25rem;
  }

  .sponsor-dialog__header h2 {
    margin: 0;
    font-size: clamp(1.55rem, 5vw, 2.15rem);
    letter-spacing: -.035em;
  }

  .sponsor-dialog__header h2 span {
    white-space: nowrap;
  }

  .sponsor-dialog__close-wrap {
    flex: none;
  }

  .sponsor-dialog__close {
    width: 40px;
    height: 40px;
    padding: 0;
    font-size: 1.65rem;
    line-height: 1;
  }

  .sponsor-dialog__description {
    margin: 0;
    color: var(--text-muted);
    line-height: 1.65;
  }

  .sponsor-dialog__figure {
    display: grid;
    justify-items: center;
    gap: .8rem;
    margin: 0;
  }

  .sponsor-dialog__qr-shell {
    width: min(100%, 320px);
    aspect-ratio: 1;
    display: grid;
    place-items: center;
    overflow: hidden;
    border: 1px solid #d8d8d8;
    border-radius: 10px;
    background: #fff;
    padding: 10px;
  }

  .sponsor-dialog__qr-image {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
  }

  .sponsor-dialog figcaption {
    max-width: 42ch;
    color: var(--text-muted);
    font-size: .78rem;
    line-height: 1.6;
    text-align: center;
  }

  .sponsor-dialog__thanks {
    margin: 0;
    color: var(--text);
    font-size: .9rem;
    line-height: 1.6;
    text-align: center;
  }

  .sponsor-dialog__actions {
    display: flex;
    justify-content: center;
  }

  .sponsor-dialog__actions .button {
    min-width: 9rem;
  }
}

@media (max-width: 760px) {
  @layer pages {
    .sponsor-hero__inner,
    .sponsor-boundaries__inner {
      grid-template-columns: 1fr;
      align-items: start;
      gap: 2rem;
    }

    .sponsor-hero h1,
    .sponsor-boundaries h2 {
      max-width: none;
    }

    .sponsor-section-head {
      align-items: start;
      flex-direction: column;
      gap: .75rem;
    }
  }
}

@media (max-width: 480px) {
  @layer pages {
    .sponsor-hero {
      padding-block: 3.6rem 2.8rem;
    }

    .sponsor-options .sponsor-options__inner {
      width: min(calc(100% - 32px), 1380px);
    }

    .sponsor-dialog__panel {
      padding: 1.1rem;
    }

    .sponsor-dialog__actions .button {
      width: 100%;
    }
  }
}

@media (prefers-reduced-motion: reduce) {
  @layer pages {
    .sponsor-dialog[open] {
      animation: none;
    }
  }
}

@media (forced-colors: active) {
  @layer pages {
    .sponsor-dialog__qr-shell,
    .sponsor-dialog,
    .sponsor-boundaries li {
      border-color: CanvasText;
    }
  }
}