/* =========================================================================
   Aisub 前台视觉主题（storefront）
   仅作用于 body.aisub-storefront，不影响后台共用的 styles.css。
   纯视觉层：不改动任何 id / name / data-* / 表单属性 / DOM 结构 / 业务逻辑。
   ========================================================================= */

/* ---------- 1. 主题令牌 ---------- */

.aisub-storefront {
  color-scheme: dark;

  /* 基底：深海军蓝 / 石墨 */
  --sf-bg: #080d15;
  --sf-bg-2: #0b1220;
  --sf-surface: #111a29;
  --sf-surface-2: #16202f;
  --sf-surface-3: #1c2839;
  --sf-surface-inset: #0d1522;

  /* 描边 */
  --sf-line: rgba(150, 178, 210, 0.13);
  --sf-line-soft: rgba(150, 178, 210, 0.08);
  --sf-line-strong: rgba(150, 178, 210, 0.24);

  /* 文本 */
  --sf-text: #e9eff8;
  --sf-text-2: #9aabc2;
  --sf-text-3: #6d7f97;

  /* 品牌青绿 */
  --sf-accent: #2ed6c2;
  --sf-accent-2: #14b8a6;
  --sf-accent-deep: #0d8f85;
  --sf-accent-soft: rgba(46, 214, 194, 0.11);
  --sf-accent-line: rgba(46, 214, 194, 0.28);
  --sf-accent-glow: rgba(46, 214, 194, 0.22);

  /* 语义色（深色适配） */
  --sf-ok: #4bd888;
  --sf-ok-soft: rgba(75, 216, 136, 0.12);
  --sf-ok-line: rgba(75, 216, 136, 0.28);
  --sf-warn: #f7c163;
  --sf-warn-soft: rgba(247, 193, 99, 0.11);
  --sf-warn-line: rgba(247, 193, 99, 0.26);
  --sf-danger: #ff8078;
  --sf-danger-soft: rgba(255, 128, 120, 0.12);
  --sf-danger-line: rgba(255, 128, 120, 0.28);

  /* 阴影层级 */
  --sf-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --sf-shadow-md: 0 1px 2px rgba(0, 0, 0, 0.35), 0 10px 26px -12px rgba(0, 0, 0, 0.7);
  --sf-shadow-lg: 0 2px 4px rgba(0, 0, 0, 0.3), 0 24px 60px -20px rgba(0, 0, 0, 0.85);
  --sf-shadow-xl: 0 40px 110px -30px rgba(0, 0, 0, 0.95), 0 2px 6px rgba(0, 0, 0, 0.5);

  /* 覆写 styles.css 的基础变量，让存量规则自动继承新配色 */
  --ink: var(--sf-text);
  --muted: var(--sf-text-2);
  --line: var(--sf-line);
  --line-soft: var(--sf-line-soft);
  --panel: var(--sf-surface);
  --soft: var(--sf-surface-2);
  --page: var(--sf-bg);
  --accent: var(--sf-accent-2);
  --accent-strong: var(--sf-accent);
  --accent-soft: var(--sf-accent-soft);
  --warn: var(--sf-warn);
  --warn-soft: var(--sf-warn-soft);
  --danger: var(--sf-danger);
  --danger-soft: var(--sf-danger-soft);
  --ok: var(--sf-ok);
  --ok-soft: var(--sf-ok-soft);
  --shadow: var(--sf-shadow-md);
  --radius: 14px;
  --radius-sm: 10px;
}

/* ---------- 2. 画布与排版 ---------- */

/* 环境光直接画在 body 背景里：不额外建图层，不引入层叠上下文 */
.aisub-storefront {
  color: var(--sf-text);
  background-color: var(--sf-bg);
  background-image:
    radial-gradient(1000px 520px at 80% -6%, rgba(46, 214, 194, 0.11), transparent 62%),
    radial-gradient(820px 460px at 4% 0%, rgba(58, 108, 190, 0.11), transparent 60%);
  background-repeat: no-repeat;
  background-size: 100% 1100px;
  background-position: top center;
  background-attachment: scroll;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

.aisub-storefront h1,
.aisub-storefront h2,
.aisub-storefront h3 {
  letter-spacing: -0.02em;
  font-weight: 700;
}

.aisub-storefront :focus-visible {
  outline: 2px solid var(--sf-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.aisub-storefront ::selection {
  background: rgba(46, 214, 194, 0.28);
  color: #fff;
}

.aisub-storefront .skip-link {
  color: #04231f;
  background: var(--sf-accent);
  font-weight: 700;
  box-shadow: var(--sf-shadow-lg);
}

/* 数字统一等宽，价格/余额对齐 */
.aisub-storefront .price,
.aisub-storefront .order-total > strong,
.aisub-storefront .balance-card strong,
.aisub-storefront .account-balance,
.aisub-storefront .order-result-head > strong,
.aisub-storefront .balance-payment-option strong,
.aisub-storefront .success-row strong,
.aisub-storefront .order-unit strong {
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
}

/* ---------- 3. 顶栏 ---------- */

.aisub-storefront .topbar {
  min-height: 68px;
  padding: 0 32px;
  gap: 20px;
  background: rgba(9, 15, 24, 0.78);
  border-bottom: 1px solid var(--sf-line);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.03), 0 14px 34px -26px rgba(0, 0, 0, 0.9);
}

.aisub-storefront .brand {
  gap: 11px;
}

.aisub-storefront .brand-logo {
  width: 34px;
  height: 34px;
  flex-basis: 34px;
  border-radius: 10px;
  box-shadow: 0 0 0 1px var(--sf-line-strong), 0 6px 16px -8px rgba(0, 0, 0, 0.9);
}

.aisub-storefront .brand-title {
  font-size: 16.5px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--sf-text);
}

.aisub-storefront .nav {
  gap: 2px;
}

/* 导航从“按钮”降级为安静的文本链接 */
.aisub-storefront .nav a {
  min-height: 34px;
  padding: 0 12px;
  color: var(--sf-text-2);
  background: transparent;
  border-color: transparent;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.16s ease, background-color 0.16s ease;
}

.aisub-storefront .nav a:hover {
  color: var(--sf-text);
  background: rgba(150, 178, 210, 0.09);
  border-color: transparent;
}

.aisub-storefront .account-nav {
  gap: 8px;
  padding-left: 16px;
  border-left: 1px solid var(--sf-line);
}

.aisub-storefront .account-name {
  color: var(--sf-text-2);
  font-size: 13px;
}

.aisub-storefront .account-balance {
  min-height: 32px;
  padding: 0 12px;
  color: var(--sf-accent);
  background: var(--sf-accent-soft);
  border: 1px solid var(--sf-accent-line);
  border-radius: 999px;
  font-size: 13px;
  letter-spacing: 0.01em;
}

/* ---------- 4. 按钮 ---------- */

.aisub-storefront .ghost-button,
.aisub-storefront .primary-button,
.aisub-storefront .danger-button,
.aisub-storefront .tab-button,
.aisub-storefront .icon-button {
  border-radius: 10px;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: background-color 0.16s ease, border-color 0.16s ease,
    box-shadow 0.16s ease, transform 0.16s ease, color 0.16s ease;
}

.aisub-storefront .primary-button {
  color: #04241f;
  background: linear-gradient(180deg, #3ce0cc 0%, #16b9a8 100%);
  border-color: transparent;
  font-weight: 700;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.28) inset,
    0 8px 20px -10px var(--sf-accent-glow);
}

.aisub-storefront .primary-button:hover {
  background: linear-gradient(180deg, #4ceada 0%, #1dc9b6 100%);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.34) inset,
    0 12px 28px -10px var(--sf-accent-glow);
  transform: translateY(-1px);
}

.aisub-storefront .primary-button:active {
  transform: translateY(0);
}

.aisub-storefront .ghost-button {
  color: var(--sf-text);
  background: rgba(150, 178, 210, 0.06);
  border-color: var(--sf-line-strong);
}

.aisub-storefront .ghost-button:hover {
  color: #fff;
  background: rgba(150, 178, 210, 0.13);
  border-color: rgba(150, 178, 210, 0.36);
}

.aisub-storefront .danger-button {
  color: #24080a;
  background: linear-gradient(180deg, #ff9a92 0%, #f0655c 100%);
  border-color: transparent;
}

.aisub-storefront button:disabled,
.aisub-storefront .primary-button:disabled {
  opacity: 1;
  color: var(--sf-text-3);
  background: rgba(150, 178, 210, 0.07);
  border-color: var(--sf-line);
  box-shadow: none;
  transform: none;
}

.aisub-storefront .icon-button {
  color: var(--sf-text-2);
  background: rgba(150, 178, 210, 0.07);
  border-color: var(--sf-line);
}

.aisub-storefront .icon-button:hover {
  color: var(--sf-text);
  background: rgba(150, 178, 210, 0.15);
}

/* ---------- 5. Hero ---------- */

.aisub-storefront .hero {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(16, 27, 44, 0.9) 0%, rgba(8, 13, 21, 0) 100%);
  border-bottom: 1px solid var(--sf-line);
}

.aisub-storefront .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(720px 320px at 82% 0%, rgba(46, 214, 194, 0.14), transparent 64%),
    linear-gradient(90deg, rgba(46, 214, 194, 0.05), transparent 42%);
}

/* 顶部品牌色细线 */
.aisub-storefront .hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--sf-accent-line) 22%, rgba(58, 108, 190, 0.3) 62%, transparent);
}

.aisub-storefront .hero-copy {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  gap: 16px;
  padding: 56px 32px 44px;
}

.aisub-storefront .hero h1 {
  max-width: 18ch;
  font-size: clamp(30px, 4.4vw, 50px);
  line-height: 1.13;
  letter-spacing: -0.035em;
  color: #f4f8fd;
}

.aisub-storefront .hero p {
  max-width: 60ch;
  color: var(--sf-text-2);
  font-size: 16px;
  line-height: 1.75;
}

.aisub-storefront .hero-actions {
  gap: 12px;
  margin-top: 6px;
}

.aisub-storefront .hero-actions .primary-button,
.aisub-storefront .hero-actions .ghost-button {
  min-height: 46px;
  padding: 0 24px;
  font-size: 15px;
}

/* 眉标做成胶囊 */
.aisub-storefront .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  justify-self: start;
  min-height: 28px;
  padding: 0 12px 0 10px;
  color: var(--sf-accent);
  background: var(--sf-accent-soft);
  border: 1px solid var(--sf-accent-line);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.aisub-storefront .eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--sf-accent);
  box-shadow: 0 0 0 3px rgba(46, 214, 194, 0.18);
}

/* 服务承诺条 */
.aisub-storefront .service-strip {
  gap: 14px;
  margin-top: 20px;
}

.aisub-storefront .service-strip > div {
  position: relative;
  gap: 6px;
  padding: 16px 18px 16px 20px;
  background: linear-gradient(180deg, rgba(22, 32, 47, 0.86), rgba(17, 26, 41, 0.7));
  border: 1px solid var(--sf-line);
  border-left: 1px solid var(--sf-line);
  border-radius: 12px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.aisub-storefront .service-strip > div::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--sf-accent), rgba(46, 214, 194, 0.15));
}

.aisub-storefront .service-strip strong {
  font-size: 14.5px;
  color: var(--sf-text);
  letter-spacing: -0.005em;
}

.aisub-storefront .service-strip span {
  color: var(--sf-text-3);
  font-size: 13px;
  line-height: 1.6;
}

/* ---------- 6. 主体布局 ---------- */

.aisub-storefront .content {
  max-width: 1200px;
  padding: 36px 32px 88px;
}

/* ---------- 7. 公告 ---------- */

.aisub-storefront .announcement-bar {
  align-items: center;
  gap: 14px;
  padding: 13px 18px;
  margin-bottom: 40px;
  background: linear-gradient(90deg, rgba(247, 193, 99, 0.09), rgba(247, 193, 99, 0.03));
  border: 1px solid var(--sf-warn-line);
  border-radius: 12px;
}

.aisub-storefront .announcement-label {
  margin-top: 0;
  padding: 3px 10px;
  color: #1d1503;
  background: var(--sf-warn);
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.aisub-storefront .announcement-bar p {
  color: #f0dcb4;
  font-size: 13.5px;
}

/* ---------- 8. 区块标题 ---------- */

.aisub-storefront .section-kicker,
.aisub-storefront .settings-group h3 {
  display: inline-block;
  color: var(--sf-accent);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.aisub-storefront .section-head {
  align-items: flex-end;
  gap: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--sf-line);
}

.aisub-storefront .section-head > div:first-child {
  display: grid;
  gap: 6px;
}

.aisub-storefront .section-head h2 {
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.25;
}

.aisub-storefront .section-head .muted {
  padding-bottom: 4px;
  color: var(--sf-text-3);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

/* ---------- 9. 工具条 / 搜索 / 分类 ---------- */

.aisub-storefront .shop-section {
  gap: 20px;
}

.aisub-storefront .toolbar {
  align-items: center;
  gap: 16px;
  padding-top: 2px;
}

.aisub-storefront .search {
  width: min(320px, 100%);
  min-height: 42px;
  padding: 0 14px;
  color: var(--sf-text);
  background: var(--sf-surface-inset);
  border: 1px solid var(--sf-line);
  border-radius: 10px;
  transition: border-color 0.16s ease, box-shadow 0.16s ease, background-color 0.16s ease;
}

.aisub-storefront .search::placeholder {
  color: var(--sf-text-3);
}

.aisub-storefront .search:focus {
  outline: none;
  background: var(--sf-surface-2);
  border-color: var(--sf-accent-line);
  box-shadow: 0 0 0 3px rgba(46, 214, 194, 0.14);
}

.aisub-storefront .search::-webkit-search-cancel-button {
  filter: invert(0.7);
}

.aisub-storefront .category-tabs {
  gap: 8px;
}

.aisub-storefront .tab-button {
  min-height: 36px;
  padding: 0 15px;
  color: var(--sf-text-2);
  background: rgba(150, 178, 210, 0.05);
  border: 1px solid var(--sf-line);
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 600;
}

.aisub-storefront .tab-button:hover {
  color: var(--sf-text);
  background: rgba(150, 178, 210, 0.12);
  border-color: var(--sf-line-strong);
}

.aisub-storefront .tab-button.active {
  color: #04241f;
  background: linear-gradient(180deg, #3ce0cc, #16b9a8);
  border-color: transparent;
  font-weight: 700;
  box-shadow: 0 6px 18px -10px var(--sf-accent-glow);
}

.aisub-storefront .tab-button[aria-pressed="true"] {
  box-shadow: 0 6px 18px -10px var(--sf-accent-glow);
}

/* 账号弹窗内的登录/注册切换 */
.aisub-storefront .auth-tabs {
  gap: 6px;
  padding: 4px;
  background: var(--sf-surface-inset);
  border: 1px solid var(--sf-line);
  border-radius: 12px;
}

.aisub-storefront .auth-tabs .tab-button {
  flex: 1;
  border-radius: 9px;
  border-color: transparent;
  background: transparent;
}

.aisub-storefront .auth-tabs .tab-button.active {
  color: var(--sf-text);
  background: var(--sf-surface-3);
  border-color: var(--sf-line-strong);
  box-shadow: var(--sf-shadow-sm);
}

/* ---------- 10. 商品网格与卡片 ---------- */

.aisub-storefront .grid {
  grid-template-columns: repeat(auto-fill, minmax(276px, 1fr));
  gap: 18px;
}

.aisub-storefront .card {
  gap: 12px;
  padding: 14px 14px 16px;
  background: linear-gradient(180deg, var(--sf-surface-2) 0%, var(--sf-surface) 100%);
  border: 1px solid var(--sf-line);
  border-radius: 16px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.045), var(--sf-shadow-md);
}

.aisub-storefront .product-card {
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.aisub-storefront .product-card:hover {
  border-color: var(--sf-accent-line);
  transform: translateY(-3px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.07),
    0 2px 4px rgba(0, 0, 0, 0.3),
    0 26px 52px -24px rgba(0, 0, 0, 0.95),
    0 0 0 1px rgba(46, 214, 194, 0.08);
}

.aisub-storefront .product-card.is-off {
  opacity: 0.72;
}

.aisub-storefront .product-card.is-off:hover {
  transform: none;
  border-color: var(--sf-line);
}

.aisub-storefront .product-cover {
  height: auto;
  background: var(--sf-surface-inset);
  border: 0;
  border-radius: 11px;
  outline: 1px solid rgba(150, 178, 210, 0.12);
  outline-offset: -1px;
}

.aisub-storefront .product-cover-fallback {
  background:
    radial-gradient(120% 140% at 20% 0%, rgba(46, 214, 194, 0.35), transparent 58%),
    linear-gradient(140deg, #16273c 0%, #0d1826 100%);
  color: #d8f7f2;
  font-size: 30px;
  letter-spacing: 0.06em;
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.5);
}

.aisub-storefront .card h3 {
  min-height: 46px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--sf-text);
  letter-spacing: -0.01em;
}

.aisub-storefront .description {
  color: var(--sf-text-3);
  font-size: 13px;
  line-height: 1.65;
}

/* 标签 */
.aisub-storefront .meta {
  gap: 7px;
}

.aisub-storefront .tag {
  min-height: 25px;
  padding: 0 9px;
  color: var(--sf-text-2);
  background: rgba(150, 178, 210, 0.08);
  border: 1px solid var(--sf-line);
  border-radius: 7px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.aisub-storefront .stock-ok,
.aisub-storefront .stock-warn,
.aisub-storefront .stock-danger,
.aisub-storefront .stock-neutral {
  border-color: transparent;
}

.aisub-storefront .stock-ok {
  color: var(--sf-ok);
  background: var(--sf-ok-soft);
  border-color: var(--sf-ok-line);
}

.aisub-storefront .stock-warn {
  color: var(--sf-warn);
  background: var(--sf-warn-soft);
  border-color: var(--sf-warn-line);
}

.aisub-storefront .stock-danger {
  color: var(--sf-danger);
  background: var(--sf-danger-soft);
  border-color: var(--sf-danger-line);
}

.aisub-storefront .stock-neutral {
  color: var(--sf-text-3);
  background: rgba(150, 178, 210, 0.07);
  border-color: var(--sf-line);
}

/* 卡片底部：价格 + 操作 */
.aisub-storefront .product-foot {
  gap: 12px;
  padding-top: 14px;
  border-top: 1px solid var(--sf-line-soft);
}

.aisub-storefront .price {
  font-size: 25px;
  font-weight: 800;
  line-height: 1.1;
  color: #f4f8fd;
  letter-spacing: -0.03em;
}

.aisub-storefront .price .currency {
  margin-right: 2px;
  color: var(--sf-accent);
  font-size: 14px;
  font-weight: 700;
}

.aisub-storefront .product-foot .primary-button {
  min-height: 40px;
  padding: 0 18px;
  font-size: 14px;
}

/* 骨架屏（深色版，几何与原版一致） */
.aisub-storefront .skeleton-card {
  min-height: 342px;
  border-color: var(--sf-line-soft);
  box-shadow: none;
  background:
    linear-gradient(rgba(150, 178, 210, 0.11) 0 0) 14px 14px / calc(100% - 28px) 150px no-repeat,
    linear-gradient(rgba(150, 178, 210, 0.11) 0 0) 14px 180px / 72% 18px no-repeat,
    linear-gradient(rgba(150, 178, 210, 0.07) 0 0) 14px 212px / 46% 22px no-repeat,
    linear-gradient(rgba(150, 178, 210, 0.07) 0 0) 14px 248px / calc(100% - 28px) 14px no-repeat,
    linear-gradient(rgba(150, 178, 210, 0.07) 0 0) 14px 274px / 58% 14px no-repeat,
    var(--sf-surface);
}

/* 空态 */
.aisub-storefront .empty {
  grid-column: 1 / -1;
  padding: 56px 28px;
  color: var(--sf-text-2);
  background: rgba(17, 26, 41, 0.5);
  border: 1px dashed var(--sf-line-strong);
  border-radius: 16px;
}

.aisub-storefront .empty strong {
  display: block;
  margin-bottom: 6px;
  color: var(--sf-text);
  font-size: 16px;
}

.aisub-storefront .empty p {
  margin: 0;
  font-size: 13.5px;
}

/* ---------- 11. 购买须知 ---------- */

.aisub-storefront .notice-grid {
  gap: 16px;
  margin-top: 60px;
}

.aisub-storefront .notice-card {
  position: relative;
  gap: 10px;
  padding: 22px;
  background: linear-gradient(180deg, var(--sf-surface-2), var(--sf-surface));
  border: 1px solid var(--sf-line);
  border-radius: 16px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  overflow: hidden;
}

.aisub-storefront .notice-card::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 64px;
  height: 2px;
  background: linear-gradient(90deg, var(--sf-accent), transparent);
}

.aisub-storefront .notice-card h2 {
  font-size: 15.5px;
  color: var(--sf-text);
}

.aisub-storefront .notice-card p {
  color: var(--sf-text-2);
  font-size: 13.5px;
  line-height: 1.75;
}

/* ---------- 12. 客服条 ---------- */

.aisub-storefront .support-band {
  position: relative;
  overflow: hidden;
  gap: 28px;
  margin-top: 28px;
  padding: 32px 34px;
  color: var(--sf-text);
  background:
    radial-gradient(620px 260px at 88% 120%, rgba(46, 214, 194, 0.16), transparent 62%),
    linear-gradient(120deg, #14243a 0%, #0d1727 62%, #101c2e 100%);
  border: 1px solid var(--sf-line-strong);
  border-radius: 18px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06), var(--sf-shadow-lg);
}

.aisub-storefront .support-band > div {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.aisub-storefront .support-band .section-kicker {
  color: var(--sf-accent);
}

.aisub-storefront .support-band h2 {
  margin: 0;
  font-size: clamp(19px, 2.2vw, 24px);
}

.aisub-storefront .support-band p {
  color: var(--sf-text-2);
  font-size: 14px;
}

.aisub-storefront .support-band .primary-button {
  flex-shrink: 0;
  min-height: 46px;
  padding: 0 24px;
}

/* ---------- 13. 查单 / 账户面板 ---------- */

.aisub-storefront .lookup-panel {
  gap: 18px;
  margin-top: 60px;
  padding: 30px;
  background: linear-gradient(180deg, var(--sf-surface-2), var(--sf-surface));
  border: 1px solid var(--sf-line);
  border-radius: 18px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04), var(--sf-shadow-md);
}

.aisub-storefront .lookup-intro {
  max-width: 68ch;
  color: var(--sf-text-2);
  font-size: 13.5px;
  line-height: 1.75;
}

.aisub-storefront .lookup-form {
  gap: 14px;
  padding: 20px;
  background: var(--sf-surface-inset);
  border: 1px solid var(--sf-line);
  border-radius: 14px;
}

.aisub-storefront .lookup-form .primary-button {
  min-height: 42px;
  padding: 0 22px;
}

.aisub-storefront .balance-card {
  padding: 18px 20px;
  background:
    radial-gradient(420px 180px at 92% 130%, rgba(46, 214, 194, 0.18), transparent 60%),
    linear-gradient(120deg, rgba(46, 214, 194, 0.10), rgba(46, 214, 194, 0.03));
  border: 1px solid var(--sf-accent-line);
  border-radius: 14px;
}

.aisub-storefront .balance-card span {
  color: var(--sf-text-2);
  font-size: 12.5px;
  letter-spacing: 0.02em;
}

.aisub-storefront .balance-card strong {
  color: var(--sf-accent);
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

/* 订单卡片 */
.aisub-storefront .order-result-card {
  gap: 16px;
  padding: 20px;
  background: var(--sf-surface-inset);
  border: 1px solid var(--sf-line);
  border-radius: 14px;
}

.aisub-storefront .order-result-head {
  padding-bottom: 14px;
  border-bottom: 1px solid var(--sf-line-soft);
}

.aisub-storefront .order-result-head > div {
  display: grid;
  gap: 5px;
  min-width: 0;
}

.aisub-storefront .order-result-head .section-kicker {
  overflow-wrap: anywhere;
  letter-spacing: 0.08em;
}

.aisub-storefront .order-result-head h3 {
  font-size: 18px;
  color: var(--sf-text);
}

.aisub-storefront .order-result-head > strong {
  font-size: 21px;
  font-weight: 800;
  color: #f4f8fd;
  letter-spacing: -0.02em;
}

.aisub-storefront .order-result-list {
  gap: 14px 22px;
}

.aisub-storefront .order-result-list dt {
  color: var(--sf-text-3);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.aisub-storefront .order-result-list dd {
  color: var(--sf-text);
  font-size: 13.5px;
  font-weight: 600;
}

/* ---------- 14. 发货 / Session Token ---------- */

.aisub-storefront .delivery-box {
  gap: 10px;
  padding: 16px;
  background: rgba(150, 178, 210, 0.045);
  border: 1px solid var(--sf-line);
  border-radius: 12px;
}

.aisub-storefront .delivery-head strong {
  font-size: 14px;
}

.aisub-storefront .delivery-box pre {
  padding: 14px;
  color: #cfe3f5;
  background: #060b13;
  border: 1px solid var(--sf-line);
  border-radius: 10px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12.5px;
  line-height: 1.65;
}

.aisub-storefront .delivery-hint {
  color: var(--sf-text-3);
  font-size: 12px;
}

.aisub-storefront .customer-input-notice,
.aisub-storefront .customer-input-box {
  padding: 18px;
  color: #f0dcb4;
  background: linear-gradient(180deg, rgba(247, 193, 99, 0.09), rgba(247, 193, 99, 0.035));
  border: 1px solid var(--sf-warn-line);
  border-radius: 14px;
}

.aisub-storefront .customer-input-notice strong,
.aisub-storefront .customer-input-box strong {
  color: #fbe4b4;
}

.aisub-storefront .customer-input-notice p {
  color: #e2cda6;
  font-size: 13px;
  line-height: 1.7;
}

.aisub-storefront .customer-input-box .section-kicker {
  color: var(--sf-warn);
}

.aisub-storefront .customer-input-box.is-processing {
  color: var(--sf-text);
  background: linear-gradient(180deg, rgba(46, 214, 194, 0.09), rgba(46, 214, 194, 0.03));
  border-color: var(--sf-accent-line);
}

.aisub-storefront .customer-input-box.is-processing .section-kicker,
.aisub-storefront .customer-input-box.is-processing strong {
  color: var(--sf-accent);
}

.aisub-storefront .customer-input-box.has-error {
  color: #f7d3cf;
  background: linear-gradient(180deg, rgba(255, 128, 120, 0.1), rgba(255, 128, 120, 0.035));
  border-color: var(--sf-danger-line);
}

.aisub-storefront .customer-input-box.has-error .section-kicker,
.aisub-storefront .customer-input-box.has-error strong {
  color: var(--sf-danger);
}

.aisub-storefront .customer-input-steps {
  color: var(--sf-text-2);
  font-size: 13px;
  line-height: 1.7;
}

.aisub-storefront .session-token-source {
  padding: 12px 14px;
  background: rgba(6, 11, 19, 0.6);
  border: 1px solid var(--sf-warn-line);
  border-radius: 10px;
  font-size: 12.5px;
}

.aisub-storefront .session-token-source span {
  color: var(--sf-text-2);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.aisub-storefront .session-token-source a {
  color: var(--sf-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.aisub-storefront .customer-input-box textarea {
  color: #cfe3f5;
  background: #060b13;
  font-size: 12.5px;
  line-height: 1.6;
}

.aisub-storefront .sensitive-hint {
  color: var(--sf-text-3);
  font-size: 11.5px;
  line-height: 1.6;
}

/* ---------- 15. 支付 / 成功态 ---------- */

.aisub-storefront .payment-box {
  padding: 16px 18px;
  background: linear-gradient(180deg, rgba(46, 214, 194, 0.1), rgba(46, 214, 194, 0.035));
  border: 1px solid var(--sf-accent-line);
  border-radius: 14px;
}

.aisub-storefront .payment-actions {
  gap: 10px;
}

.aisub-storefront .order-success {
  padding: 20px;
  background: linear-gradient(180deg, rgba(75, 216, 136, 0.11), rgba(75, 216, 136, 0.035));
  border: 1px solid var(--sf-ok-line);
  border-radius: 14px;
}

.aisub-storefront .success-head {
  color: var(--sf-ok);
  font-size: 16px;
}

.aisub-storefront .success-row > span {
  color: var(--sf-text-3);
  font-size: 12.5px;
}

.aisub-storefront .success-row code {
  padding: 5px 10px;
  color: var(--sf-accent);
  background: #060b13;
  border: 1px solid var(--sf-line-strong);
  border-radius: 8px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13.5px;
  letter-spacing: 0.02em;
}

.aisub-storefront .success-steps {
  color: var(--sf-text-2);
  font-size: 13.5px;
  line-height: 1.75;
}

.aisub-storefront .success-steps::marker {
  color: var(--sf-text-3);
}

/* ---------- 16. 表单 ---------- */

.aisub-storefront .field label {
  color: var(--sf-text-2);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.aisub-storefront .field input,
.aisub-storefront .field textarea,
.aisub-storefront .field select {
  min-height: 42px;
  padding: 10px 12px;
  color: var(--sf-text);
  background: var(--sf-surface-inset);
  border: 1px solid var(--sf-line);
  border-radius: 10px;
  transition: border-color 0.16s ease, box-shadow 0.16s ease, background-color 0.16s ease;
}

.aisub-storefront .field input::placeholder,
.aisub-storefront .field textarea::placeholder {
  color: var(--sf-text-3);
}

.aisub-storefront .field input:focus,
.aisub-storefront .field textarea:focus,
.aisub-storefront .field select:focus {
  background: var(--sf-surface-2);
  border-color: var(--sf-accent-line);
  box-shadow: 0 0 0 3px rgba(46, 214, 194, 0.14);
}

.aisub-storefront .field textarea {
  min-height: 84px;
  line-height: 1.6;
}

.aisub-storefront .field-hint {
  color: var(--sf-text-3);
  font-size: 12px;
}

.aisub-storefront .field-hint.has-error {
  color: var(--sf-danger);
}

.aisub-storefront .check-row {
  gap: 11px;
  padding: 12px 14px;
  color: var(--sf-text-2);
  background: rgba(150, 178, 210, 0.05);
  border: 1px solid var(--sf-line);
  border-radius: 10px;
  font-size: 13px;
  line-height: 1.6;
}

.aisub-storefront .check-row:hover {
  border-color: var(--sf-line-strong);
}

.aisub-storefront .check-row input,
.aisub-storefront .check-field input {
  width: 17px;
  height: 17px;
  margin-top: 2px;
  accent-color: var(--sf-accent-2);
}

.aisub-storefront .status {
  font-size: 13px;
}

.aisub-storefront .status.ok {
  color: var(--sf-ok);
}

.aisub-storefront .status.err {
  color: var(--sf-danger);
}

.aisub-storefront .balance-payment-option {
  min-height: 50px;
  padding: 13px 15px;
  background: linear-gradient(180deg, rgba(46, 214, 194, 0.1), rgba(46, 214, 194, 0.035));
  border: 1px solid var(--sf-accent-line);
  border-radius: 10px;
}

.aisub-storefront .balance-payment-option span {
  color: var(--sf-text);
  font-weight: 600;
  font-size: 14px;
}

.aisub-storefront .balance-payment-option strong {
  color: var(--sf-accent);
  font-size: 15px;
  font-weight: 800;
}

/* ---------- 17. 页脚 ---------- */

.aisub-storefront .site-footer {
  margin-top: 72px;
  padding: 36px 32px 44px;
  background: linear-gradient(180deg, rgba(11, 18, 32, 0.5), rgba(6, 11, 19, 0.9));
  border-top: 1px solid var(--sf-line);
}

.aisub-storefront .footer-brand {
  max-width: 1200px;
  gap: 11px;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--sf-line-soft);
  color: var(--sf-text);
}

.aisub-storefront .footer-brand img {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  box-shadow: 0 0 0 1px var(--sf-line-strong);
}

.aisub-storefront .footer-brand strong {
  font-size: 14.5px;
  letter-spacing: -0.01em;
}

.aisub-storefront .site-footer p {
  max-width: 1200px;
  margin-bottom: 8px;
  color: var(--sf-text-3);
  font-size: 12.5px;
  line-height: 1.8;
}

.aisub-storefront .site-footer a {
  color: var(--sf-accent);
  text-decoration-color: var(--sf-accent-line);
  text-underline-offset: 3px;
}

/* ---------- 18. 弹窗 ---------- */

.aisub-storefront .modal-backdrop {
  padding: 24px;
  background: rgba(4, 8, 14, 0.72);
  backdrop-filter: blur(8px) saturate(120%);
  -webkit-backdrop-filter: blur(8px) saturate(120%);
}

.aisub-storefront .order-modal {
  gap: 18px;
  width: min(640px, 100%);
  padding: 26px;
  background: linear-gradient(180deg, #16202f 0%, #101927 100%);
  border: 1px solid var(--sf-line-strong);
  border-radius: 20px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06), var(--sf-shadow-xl);
}

.aisub-storefront .modal-header {
  padding-bottom: 16px;
  border-bottom: 1px solid var(--sf-line-soft);
}

.aisub-storefront .modal-header > div:first-child {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.aisub-storefront .modal-header h2 {
  margin: 0;
  font-size: 20px;
}

.aisub-storefront .order-summary {
  padding: 16px 18px;
  background: var(--sf-surface-inset);
  border: 1px solid var(--sf-line);
  border-radius: 14px;
}

.aisub-storefront .order-summary-info > span:first-child {
  color: var(--sf-text-2);
  font-size: 13px;
}

.aisub-storefront .order-unit {
  color: var(--sf-text-3);
  font-size: 12.5px;
}

.aisub-storefront .order-unit strong {
  color: var(--sf-text-2);
}

.aisub-storefront .order-total > span {
  color: var(--sf-text-3);
  font-size: 11.5px;
  letter-spacing: 0.03em;
}

.aisub-storefront .order-total > strong {
  color: var(--sf-accent);
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.025em;
}

.aisub-storefront .modal-note {
  padding: 13px 15px;
  color: #ddc9a4;
  background: rgba(247, 193, 99, 0.07);
  border: 1px solid var(--sf-warn-line);
  border-radius: 10px;
  font-size: 12.5px;
  line-height: 1.7;
}

.aisub-storefront .modal-actions {
  gap: 10px;
}

.aisub-storefront .modal-actions .primary-button {
  flex: 1 1 auto;
  min-height: 48px;
  font-size: 15px;
}

.aisub-storefront .modal-actions .ghost-button {
  min-height: 48px;
  padding: 0 22px;
}

.aisub-storefront .order-modal::-webkit-scrollbar {
  width: 10px;
}

.aisub-storefront .order-modal::-webkit-scrollbar-thumb {
  background: rgba(150, 178, 210, 0.2);
  border: 3px solid transparent;
  border-radius: 999px;
  background-clip: padding-box;
}

/* ---------- 19. 响应式：≤1080px ---------- */

@media (max-width: 1080px) {
  .aisub-storefront .topbar {
    padding: 0 20px;
  }

  .aisub-storefront .hero-copy {
    padding: 44px 20px 36px;
  }

  .aisub-storefront .content {
    padding: 30px 20px 72px;
  }

  .aisub-storefront .site-footer {
    padding: 32px 20px 40px;
  }
}

/* ---------- 20. 响应式：≤900px（平板 / 手机） ---------- */

@media (max-width: 900px) {
  .aisub-storefront .topbar {
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    min-height: auto;
    padding: 12px 16px 0;
  }

  .aisub-storefront .brand {
    margin-right: auto;
  }

  .aisub-storefront .account-nav {
    padding-left: 0;
    border-left: 0;
  }

  /* 导航独占一行，横向滚动，边缘渐隐 */
  .aisub-storefront .nav {
    order: 3;
    width: 100%;
    gap: 4px;
    margin: 0 -16px;
    padding: 6px 16px 8px;
    border-top: 1px solid var(--sf-line-soft);
    scrollbar-width: none;
    -ms-overflow-style: none;
    -webkit-mask-image: linear-gradient(90deg, #000 0, #000 calc(100% - 22px), transparent);
    mask-image: linear-gradient(90deg, #000 0, #000 calc(100% - 22px), transparent);
  }

  .aisub-storefront .nav::-webkit-scrollbar {
    display: none;
  }

  .aisub-storefront .nav a {
    flex-shrink: 0;
    min-height: 38px;
    padding: 0 12px;
    font-size: 14px;
  }

  .aisub-storefront .hero-copy {
    gap: 14px;
    padding: 32px 16px 28px;
  }

  .aisub-storefront .hero h1 {
    max-width: none;
    font-size: clamp(27px, 7.4vw, 36px);
    line-height: 1.2;
  }

  .aisub-storefront .hero p {
    font-size: 14.5px;
    line-height: 1.7;
  }

  .aisub-storefront .service-strip {
    gap: 10px;
    margin-top: 14px;
  }

  .aisub-storefront .service-strip > div {
    padding: 13px 15px 13px 17px;
  }

  .aisub-storefront .service-strip span {
    font-size: 12.5px;
  }

  .aisub-storefront .content {
    padding: 24px 16px 64px;
  }

  .aisub-storefront .announcement-bar {
    align-items: flex-start;
    gap: 10px;
    padding: 12px 14px;
    margin-bottom: 30px;
  }

  .aisub-storefront .announcement-label {
    margin-top: 2px;
  }

  .aisub-storefront .section-head {
    align-items: flex-start;
    gap: 10px;
    padding-bottom: 14px;
  }

  .aisub-storefront .section-head .muted {
    padding-bottom: 0;
  }

  .aisub-storefront .toolbar {
    align-items: stretch;
    gap: 12px;
  }

  .aisub-storefront .category-tabs {
    margin: 0 -16px;
    padding: 0 16px 4px;
    scrollbar-width: none;
    -ms-overflow-style: none;
    -webkit-mask-image: linear-gradient(90deg, #000 0, #000 calc(100% - 22px), transparent);
    mask-image: linear-gradient(90deg, #000 0, #000 calc(100% - 22px), transparent);
  }

  .aisub-storefront .category-tabs::-webkit-scrollbar {
    display: none;
  }

  .aisub-storefront .notice-grid {
    gap: 12px;
    margin-top: 44px;
  }

  .aisub-storefront .notice-card {
    padding: 18px;
  }

  .aisub-storefront .support-band {
    align-items: stretch;
    gap: 18px;
    margin-top: 22px;
    padding: 24px 20px;
  }

  .aisub-storefront .support-band .primary-button {
    width: 100%;
  }

  .aisub-storefront .lookup-panel {
    gap: 16px;
    margin-top: 44px;
    padding: 20px 18px;
  }

  .aisub-storefront .lookup-form {
    padding: 16px;
  }

  .aisub-storefront .lookup-form .primary-button {
    width: 100%;
    min-height: 46px;
  }

  .aisub-storefront .balance-card {
    padding: 16px 18px;
  }

  .aisub-storefront .order-result-card {
    padding: 16px;
  }

  .aisub-storefront .order-result-head {
    align-items: flex-start;
    gap: 10px;
  }

  .aisub-storefront .order-result-list {
    gap: 12px;
  }

  /* 弹窗改为底部抽屉，更贴合移动端 */
  .aisub-storefront .modal-backdrop {
    place-items: end stretch;
    padding: 0;
  }

  .aisub-storefront .order-modal {
    gap: 16px;
    width: 100%;
    max-height: min(94dvh, calc(100dvh - 24px));
    padding: 20px 16px calc(20px + env(safe-area-inset-bottom, 0px));
    border-width: 1px 0 0;
    border-radius: 22px 22px 0 0;
    box-shadow: 0 -30px 80px -20px rgba(0, 0, 0, 0.95);
  }

  .aisub-storefront .modal-header {
    padding-bottom: 14px;
  }

  .aisub-storefront .modal-header h2 {
    font-size: 18px;
  }

  .aisub-storefront .order-summary {
    gap: 12px;
    padding: 14px;
  }

  .aisub-storefront .order-total {
    justify-items: start;
    width: 100%;
    padding-top: 12px;
    border-top: 1px solid var(--sf-line-soft);
  }

  .aisub-storefront .modal-actions {
    flex-direction: column-reverse;
  }

  .aisub-storefront .modal-actions .primary-button,
  .aisub-storefront .modal-actions .ghost-button {
    width: 100%;
  }

  .aisub-storefront .customer-input-notice,
  .aisub-storefront .customer-input-box {
    padding: 15px;
  }

  .aisub-storefront .site-footer {
    margin-top: 56px;
    padding: 28px 16px 36px;
  }
}

/* ---------- 21. 响应式：≤560px（375 / 390 / 414 主战场） ---------- */

@media (max-width: 560px) {
  .aisub-storefront .topbar {
    padding: 10px 14px 0;
    gap: 8px;
  }

  .aisub-storefront .brand-logo {
    width: 30px;
    height: 30px;
    flex-basis: 30px;
  }

  .aisub-storefront .brand-title {
    font-size: 15.5px;
  }

  .aisub-storefront .account-nav {
    gap: 6px;
  }

  .aisub-storefront .account-nav .small-button {
    min-height: 34px;
    padding: 0 12px;
    font-size: 13px;
  }

  .aisub-storefront .account-balance {
    min-height: 30px;
    padding: 0 10px;
    font-size: 12.5px;
  }

  .aisub-storefront .account-name {
    max-width: 108px;
    font-size: 12px;
  }

  .aisub-storefront .nav {
    margin: 0 -14px;
    padding: 6px 14px 8px;
  }

  .aisub-storefront .hero-copy {
    padding: 26px 14px 24px;
  }

  .aisub-storefront .hero h1 {
    font-size: clamp(25px, 7.8vw, 32px);
    letter-spacing: -0.03em;
  }

  .aisub-storefront .hero p {
    font-size: 14px;
  }

  .aisub-storefront .hero-actions {
    gap: 10px;
  }

  /* 恢复次要按钮显示（原样式在小屏隐藏，这里仅作视觉恢复） */
  .aisub-storefront .hero-actions .ghost-button {
    display: inline-flex;
  }

  .aisub-storefront .hero-actions .primary-button,
  .aisub-storefront .hero-actions .ghost-button {
    flex: 1 1 138px;
    min-height: 46px;
    padding: 0 14px;
    font-size: 14.5px;
  }

  .aisub-storefront .content {
    padding: 20px 14px 56px;
  }

  .aisub-storefront .announcement-bar {
    margin-bottom: 26px;
  }

  .aisub-storefront .announcement-bar p {
    font-size: 13px;
    line-height: 1.65;
  }

  .aisub-storefront .section-head h2 {
    font-size: 21px;
  }

  .aisub-storefront .grid {
    gap: 14px;
  }

  .aisub-storefront .card {
    padding: 12px 12px 14px;
    border-radius: 15px;
  }

  .aisub-storefront .card h3 {
    min-height: 0;
    font-size: 15.5px;
  }

  .aisub-storefront .description {
    min-height: 0;
  }

  .aisub-storefront .product-card:hover {
    transform: none;
  }

  .aisub-storefront .product-foot {
    padding-top: 12px;
  }

  .aisub-storefront .price {
    font-size: 23px;
  }

  .aisub-storefront .product-foot .primary-button {
    min-height: 44px;
    padding: 0 16px;
  }

  .aisub-storefront .tag {
    min-height: 24px;
    font-size: 11px;
  }

  .aisub-storefront .empty {
    padding: 40px 20px;
  }

  .aisub-storefront .notice-card {
    padding: 16px;
  }

  .aisub-storefront .support-band {
    padding: 22px 18px;
    border-radius: 16px;
  }

  .aisub-storefront .lookup-panel {
    padding: 18px 14px;
    border-radius: 16px;
  }

  .aisub-storefront .lookup-form {
    padding: 14px;
  }

  .aisub-storefront .balance-card {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .aisub-storefront .balance-card strong {
    font-size: 28px;
  }

  .aisub-storefront .order-result-head > strong {
    font-size: 19px;
  }

  .aisub-storefront .delivery-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .aisub-storefront .delivery-box pre {
    font-size: 12px;
  }

  .aisub-storefront .session-token-source a {
    font-size: 12px;
  }

  .aisub-storefront .success-row code {
    font-size: 13px;
  }

  .aisub-storefront .order-total > strong {
    font-size: 24px;
  }

  /* 小屏统一 44px 触控高度 */
  .aisub-storefront .ghost-button,
  .aisub-storefront .primary-button,
  .aisub-storefront .danger-button,
  .aisub-storefront .icon-button {
    min-height: 44px;
  }

  .aisub-storefront .small-button {
    min-height: 36px;
  }

  .aisub-storefront .tab-button {
    min-height: 38px;
  }

  .aisub-storefront .auth-tabs .tab-button {
    min-height: 40px;
  }

  .aisub-storefront .icon-button {
    width: 40px;
    height: 40px;
  }

  .aisub-storefront .site-footer p {
    font-size: 12px;
    line-height: 1.75;
  }
}

/* ---------- 22. 超窄屏 ≤360px ---------- */

@media (max-width: 360px) {
  .aisub-storefront .brand-title {
    font-size: 14.5px;
  }

  .aisub-storefront .account-nav .small-button {
    padding: 0 10px;
    font-size: 12.5px;
  }

  .aisub-storefront .hero h1 {
    font-size: 24px;
  }

  .aisub-storefront .hero-actions .primary-button,
  .aisub-storefront .hero-actions .ghost-button {
    flex: 1 1 100%;
  }
}

/* ---------- 23. 降级与偏好 ---------- */

@media (prefers-reduced-motion: reduce) {
  .aisub-storefront .product-card:hover,
  .aisub-storefront .primary-button:hover {
    transform: none;
  }
}

@supports not (backdrop-filter: blur(4px)) {
  .aisub-storefront .topbar {
    background: #0a111c;
  }

  .aisub-storefront .modal-backdrop {
    background: rgba(4, 8, 14, 0.9);
  }
}