/**
 * 赞助站样式（浅色商务风，与官网视觉保持一致）。
 *
 * 白底、细边框、蓝色强调；尺寸全部用 rem，跟随系统字号缩放。
 * 页面顶部与卡片使用半透明白 + 背景模糊，底层背景图会隐约透出。
 */

:root {
  --bg-muted: #f6f8fb;
  --border: #e3e8ef;
  --text: #101828;
  --text-soft: #475467;
  --muted: #667085;
  --accent: #2563eb;
  --accent-soft: #eff4ff;
  --ok: #067647;
  --ok-soft: #ecfdf3;
  --warn: #b54708;
  --warn-soft: #fffaeb;
  --error: #b42318;
  --error-soft: #fef3f2;
  --radius: 10px;
  --wrap: 1120px;

  --page-bg: rgba(255, 255, 255, 0.52);
  --page-bg-muted: rgba(246, 248, 251, 0.55);
  --glass-bg: rgba(255, 255, 255, 0.62);
  --glass-bg-strong: rgba(255, 255, 255, 0.78);
  --glass-blur: 14px;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: #eef2f8;
  background-image:
    linear-gradient(180deg, rgba(248, 250, 252, 0.14), rgba(248, 250, 252, 0.26)),
    url('https://trae-api-cn.mchost.guru/api/ide/v1/text_to_image?prompt=minecraft%20style%20vast%20blocky%20voxel%20landscape%20at%20dawn%2C%20rolling%20green%20hills%20and%20river%2C%20pine%20forest%2C%20distant%20mountains%2C%20soft%20warm%20sunlight%2C%20cinematic%20wide%20shot%2C%20no%20text&image_size=landscape_16_9');
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  background-attachment: fixed;
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC',
    'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

.wrap--narrow {
  max-width: 760px;
}

/* ------------------------------ 顶栏 ------------------------------ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  backdrop-filter: blur(16px) saturate(1.2);
  border-bottom: 1px solid var(--border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
}

.brand:hover {
  text-decoration: none;
}

.brand__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 8px;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.08em;
}

.brand__name {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 22px;
  font-size: 14px;
}

.site-nav a {
  color: var(--text-soft);
  padding: 4px 0;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover {
  color: var(--accent);
  text-decoration: none;
  border-bottom-color: var(--accent-soft);
}

/* ------------------------------ 首屏 ------------------------------ */

.hero {
  padding: 72px 0 56px;
  background: linear-gradient(180deg, var(--page-bg-muted) 0%, rgba(255, 255, 255, 0.28) 100%);
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: blur(var(--glass-blur));
  border-bottom: 1px solid var(--border);
}

.hero__inner {
  max-width: 820px;
  text-align: center;
}

.hero__eyebrow {
  display: inline-block;
  margin: 0 0 18px;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 13px;
}

.hero__title {
  margin: 0 0 18px;
  font-size: clamp(28px, 4.2vw, 44px);
  line-height: 1.28;
  letter-spacing: -0.01em;
  font-weight: 700;
}

.hero__lead {
  margin: 0 auto;
  max-width: 640px;
  color: var(--text-soft);
  font-size: 16px;
}

/* ------------------------------ 通用区块 ------------------------------ */

.section {
  padding: 52px 0 64px;
}

.section--muted {
  background: var(--page-bg-muted);
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: blur(var(--glass-blur));
  border-top: 1px solid var(--border);
}

.section__title {
  margin: 0 0 6px;
  font-size: 21px;
  font-weight: 650;
}

.section__desc {
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 14px;
}

/* ------------------------------ 赞助说明 ------------------------------ */

.facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 0 0 20px;
}

.facts__item {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--glass-bg-strong);
}

.facts__label {
  color: var(--muted);
  font-size: 12px;
}

.facts__value {
  color: var(--text);
  font-size: 15px;
  font-weight: 650;
}

.facts__note {
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.55;
}

/* ------------------------------ 提示条 ------------------------------ */

.notice {
  margin: 0 0 18px;
  padding: 11px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--glass-bg-strong);
  color: var(--text-soft);
  font-size: 14px;
}

.notice--ok {
  border-color: #abefc6;
  background: var(--ok-soft);
  color: var(--ok);
}

.notice--warn {
  border-color: #fedf89;
  background: var(--warn-soft);
  color: var(--warn);
}

.notice--error {
  border-color: #fecdca;
  background: var(--error-soft);
  color: var(--error);
}

.notice a {
  font-weight: 600;
}

/* ------------------------------ 档位 ------------------------------ */

.tier-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 12px;
  margin-bottom: 22px;
}

.tier-grid__loading {
  grid-column: 1 / -1;
  margin: 0;
  padding: 24px;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  color: var(--muted);
  text-align: center;
  font-size: 14px;
}

.tier {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 16px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--glass-bg-strong);
  color: var(--text);
  font-family: inherit;
  cursor: pointer;
  transition: border-color 0.16s ease, background 0.16s ease, box-shadow 0.16s ease,
    transform 0.16s ease;
}

.tier:hover {
  border-color: rgba(37, 99, 235, 0.45);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.12);
}

.tier[aria-pressed='true'] {
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: inset 0 0 0 1px var(--accent);
}

.tier__amount {
  font-size: 23px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.tier[aria-pressed='true'] .tier__amount {
  color: var(--accent);
}

.tier__label {
  color: var(--muted);
  font-size: 13px;
}

.tier__note {
  color: var(--muted);
  font-size: 11.5px;
  opacity: 0.85;
}

/* ------------------------------ 表单卡片 ------------------------------ */

.panel {
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: blur(var(--glass-blur));
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.04);
}

.field {
  margin-bottom: 18px;
}

.field__label {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
  font-weight: 600;
}

.field__optional {
  margin-left: 4px;
  color: var(--muted);
  font-weight: 400;
  font-size: 12.5px;
}

.field input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.85);
  color: var(--text);
  font-family: inherit;
  font-size: 15px;
  line-height: 1.5;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.field input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.field input:disabled {
  background: rgba(242, 244, 247, 0.8);
  color: var(--muted);
}

.field__control--amount {
  display: flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.85);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.field__control--amount:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.field__prefix {
  padding: 0 0 0 12px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
}

.field__control--amount input {
  border: none;
  background: transparent;
  box-shadow: none;
}

.field__control--amount input:focus {
  box-shadow: none;
}

.field__hint {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 12.5px;
}

/* ------------------------------ 按钮 ------------------------------ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-family: inherit;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.4;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn--primary:hover {
  background: #1d4ed8;
  border-color: #1d4ed8;
  text-decoration: none;
}

.btn--ghost {
  background: var(--glass-bg-strong);
  border-color: var(--border);
  color: var(--text);
}

.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}

.btn--block {
  width: 100%;
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.panel__foot {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 12.5px;
  text-align: center;
}

.panel__foot a {
  color: var(--accent);
}

/* ------------------------------ 条款 / 隐私 ------------------------------ */

.panel--legal {
  padding: 36px 40px;
}

.legal__eyebrow {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 12.5px;
}

.legal__title {
  margin: 0 0 12px;
  font-size: clamp(24px, 3vw, 30px);
  font-weight: 650;
}

.legal__lead {
  margin: 0 0 6px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
  color: var(--text-soft);
  font-size: 15px;
}

.panel--legal h2 {
  margin: 26px 0 8px;
  font-size: 17px;
  font-weight: 650;
}

.panel--legal p {
  margin: 0 0 10px;
  color: var(--text-soft);
  font-size: 14.5px;
}

.legal__contact {
  margin: 10px 0 0 !important;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-muted);
  color: var(--text) !important;
  font-size: 14px !important;
  font-weight: 550;
}

.legal__contact a {
  color: var(--accent);
}

.panel--legal ul {
  margin: 8px 0 12px;
  padding-left: 20px;
  color: var(--text-soft);
  font-size: 14.5px;
}

.panel--legal li {
  margin: 4px 0;
}

.panel--legal code {
  padding: 1px 5px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-muted);
  font-size: 0.9em;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.legal__foot {
  margin: 30px 0 0 !important;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  font-size: 14px !important;
}

/* ------------------------------ 常见问题 ------------------------------ */

.faq {
  display: grid;
  gap: 18px;
}

.faq__item h3 {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 600;
}

.faq__item p {
  margin: 0;
  color: var(--text-soft);
  font-size: 14px;
}

/* ------------------------------ 状态页 ------------------------------ */

.panel--status {
  text-align: center;
  padding: 40px 28px;
}

.chip {
  display: inline-block;
  margin-bottom: 16px;
  padding: 3px 12px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  background: var(--bg-muted);
  color: var(--muted);
}

.chip--pending {
  background: var(--accent-soft);
  color: var(--accent);
}

.chip--ok {
  background: var(--ok-soft);
  color: var(--ok);
}

.chip--error {
  background: var(--error-soft);
  color: var(--error);
}

.chip--muted {
  background: var(--bg-muted);
  color: var(--muted);
}

.status__title {
  margin: 0 0 10px;
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 650;
}

.status__desc {
  margin: 0 auto;
  max-width: 520px;
  color: var(--text-soft);
  font-size: 14.5px;
}

.order-info {
  margin: 26px auto 0;
  max-width: 460px;
  padding: 4px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.72);
  text-align: left;
}

.order-info__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

.order-info__row:last-child {
  border-bottom: none;
}

.order-info dt {
  color: var(--muted);
  white-space: nowrap;
}

.order-info dd {
  margin: 0;
  font-weight: 600;
  word-break: break-all;
  text-align: right;
}

.status__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 26px;
}

/* ------------------------------ 页脚 ------------------------------ */

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 24px;
  padding: 18px 24px;
  color: var(--muted);
  font-size: 13px;
}

.site-footer p {
  margin: 0;
}

.site-footer__contact a {
  color: var(--text-soft);
}

.site-footer__contact a:hover {
  color: var(--accent);
}

.site-footer__sep {
  color: var(--border);
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 16px;
}

.site-footer__links a {
  color: var(--text-soft);
}

.site-footer__links a:hover {
  color: var(--accent);
}

/* ------------------------------ 响应式 ------------------------------ */

@media (max-width: 640px) {
  .wrap {
    padding: 0 18px;
  }

  .site-header__inner {
    height: 58px;
    gap: 12px;
  }

  .site-nav {
    gap: 4px 14px;
    font-size: 13px;
  }

  .hero {
    padding: 48px 0 40px;
  }

  .section {
    padding: 36px 0 44px;
  }

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

  .facts {
    grid-template-columns: 1fr;
  }

  .panel {
    padding: 18px;
  }

  .panel--status {
    padding: 30px 18px;
  }

  .panel--legal {
    padding: 26px 18px;
  }

  .order-info {
    padding: 4px 14px;
  }

  .site-footer__inner {
    justify-content: center;
    padding: 16px 18px;
    text-align: center;
  }
}