/*
 * 前端商用 UI 重构层
 * 只覆盖视觉表现，不改订单、支付、登录、分销等业务逻辑。
 */
:root {
    --front-bg: #f4f6fb;
    --front-surface: rgba(255, 255, 255, .92);
    --front-card: #ffffff;
    --front-primary: #121826;
    --front-primary-2: #24304f;
    --front-accent: #d7aa5f;
    --front-accent-2: #f3d89b;
    --front-danger: #d94848;
    --front-text: #172033;
    --front-muted: #7b8498;
    --front-line: rgba(23, 32, 51, .08);
    --front-shadow: 0 18px 50px rgba(18, 24, 38, .10);
    --front-soft-shadow: 0 10px 30px rgba(18, 24, 38, .07);
    --front-radius-lg: 24px;
    --front-radius-md: 18px;
    --front-radius-sm: 12px;
}

* { -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
html { background: var(--front-bg); }
body {
    background:
        radial-gradient(circle at top left, rgba(215,170,95,.20), transparent 32%),
        radial-gradient(circle at top right, rgba(36,48,79,.20), transparent 30%),
        linear-gradient(180deg, #fbfcff 0%, var(--front-bg) 48%, #eef2f8 100%) !important;
    color: var(--front-text) !important;
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif !important;
    min-height: 100vh;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(255,255,255,.55) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.55) 1px, transparent 1px);
    background-size: 34px 34px;
    mask-image: linear-gradient(to bottom, rgba(0,0,0,.55), transparent 52%);
    z-index: -1;
}

a { color: inherit; }
img { max-width: 100%; }

/* 顶部导航 / 返回栏 */
.top-nav,
.search-container,
.top-search-bg {
    background: rgba(255,255,255,.86) !important;
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(23,32,51,.08) !important;
    box-shadow: 0 8px 26px rgba(18,24,38,.06) !important;
}
.top-nav {
    min-height: 54px;
    color: var(--front-primary) !important;
    font-weight: 800 !important;
}
.top-search-bg,
.search-container {
    padding: 12px 14px !important;
    position: sticky !important;
    top: 0 !important;
    z-index: 100 !important;
}

.search-form {
    height: 44px !important;
    border-radius: 999px !important;
    background: #fff !important;
    border: 1px solid rgba(23,32,51,.08) !important;
    box-shadow: 0 10px 24px rgba(18,24,38,.07) !important;
    color: var(--front-muted) !important;
}
.search-form i { color: var(--front-accent) !important; }
.search-input,
.search-form input {
    font-size: 14px !important;
    color: var(--front-text) !important;
}
.search-input::placeholder { color: #a4adbc !important; }

/* 首页商户资产卡片 */
.profile-banner {
    margin: 12px 14px 0 !important;
    border-radius: 26px !important;
    padding: 18px !important;
    background:
        linear-gradient(135deg, rgba(18,24,38,.98), rgba(36,48,79,.95) 60%, rgba(67,58,39,.92)) !important;
    color: #fff !important;
    box-shadow: 0 22px 60px rgba(18,24,38,.25) !important;
    overflow: hidden !important;
    position: relative !important;
}
.profile-banner::before {
    content: "";
    position: absolute;
    width: 180px;
    height: 180px;
    right: -74px;
    top: -86px;
    background: radial-gradient(circle, rgba(243,216,155,.48), transparent 68%);
}
.profile-banner::after {
    content: "PREMIUM";
    position: absolute;
    right: 16px;
    bottom: 14px;
    font-size: 10px;
    letter-spacing: .22em;
    color: rgba(255,255,255,.28);
    font-weight: 900;
}
.merchant-logo {
    width: 62px !important;
    height: 62px !important;
    border-radius: 18px !important;
    border: 1px solid rgba(255,255,255,.35) !important;
    box-shadow: 0 12px 32px rgba(0,0,0,.24) !important;
    object-fit: cover !important;
}
.merchant-name,
.merchant-title {
    font-size: 18px !important;
    font-weight: 900 !important;
    letter-spacing: .02em;
}
.merchant-desc {
    color: rgba(255,255,255,.82) !important;
    line-height: 1.65 !important;
    font-size: 13px !important;
}

.online-bar {
    margin: 12px 14px 0 !important;
    border-radius: 18px !important;
    background: linear-gradient(135deg, #fff4da, #fff 55%, #eef4ff) !important;
    border: 1px solid rgba(215,170,95,.22) !important;
    color: #4b5568 !important;
    box-shadow: var(--front-soft-shadow) !important;
}
.online-bar span,
.price,
.locked-price,
.proof-num,
.asset-num,
.stat-num {
    color: var(--front-danger) !important;
}

/* 内容卡片 */
.list-container,
.merchant-container,
.order-list,
.content,
.form-box,
.main-wrap,
.page-body {
    padding-left: 14px !important;
    padding-right: 14px !important;
}
.post-card,
.rel-card,
.merchant-card,
.order-card,
.panel,
.grid-panel,
.address-card,
.form-card,
.qr-card,
.info-card,
.coupon-card,
.login-card {
    background: var(--front-surface) !important;
    border: 1px solid rgba(255,255,255,.72) !important;
    border-radius: var(--front-radius-lg) !important;
    box-shadow: var(--front-shadow) !important;
    overflow: hidden;
}
.post-card,
.rel-card,
.merchant-card,
.order-card,
.address-card,
.coupon-card {
    margin-bottom: 14px !important;
    transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease !important;
}
.post-card:active,
.rel-card:active,
.merchant-card:active,
.order-card:active,
.address-card:active,
.coupon-card:active {
    transform: scale(.985);
}
.post-title,
.rel-title {
    color: var(--front-primary) !important;
    font-size: 16px !important;
    font-weight: 900 !important;
    letter-spacing: .01em;
    line-height: 1.55 !important;
}
.post-foot,
.rel-info,
.post-time,
.order-time,
.footer-tip,
.end-text,
.empty-state {
    color: var(--front-muted) !important;
}
.post-foot,
.rel-info {
    border-top: 1px dashed rgba(23,32,51,.10) !important;
}
.ribbon-tag,
.rel-ribbon {
    background: linear-gradient(135deg, var(--front-accent), var(--front-accent-2)) !important;
    color: #3b2a0e !important;
    box-shadow: 0 8px 18px rgba(215,170,95,.24) !important;
}
.tag {
    border: 1px solid rgba(215,170,95,.38) !important;
    background: rgba(215,170,95,.10) !important;
    color: #9a6b25 !important;
    border-radius: 999px !important;
    padding: 4px 9px !important;
    font-size: 11px !important;
}
.result-stamp,
.stamp-badge {
    border-width: 1.5px !important;
    background: rgba(255,255,255,.76) !important;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}
.stamp-red { color: #cf3030 !important; border-color: rgba(207,48,48,.78) !important; }
.stamp-black { color: #101826 !important; border-color: rgba(16,24,38,.72) !important; }

/* 详情页 */
.article-box,
.detail-card {
    background: var(--front-surface) !important;
    border-radius: var(--front-radius-lg) !important;
    box-shadow: var(--front-shadow) !important;
    border: 1px solid rgba(255,255,255,.72) !important;
    margin: 14px !important;
    overflow: hidden;
}
.title-section,
.article-header {
    background: linear-gradient(135deg, #fff, #f7f9fc) !important;
    border-bottom: 1px solid rgba(23,32,51,.08) !important;
}
.article-title,
.detail-title {
    color: var(--front-primary) !important;
    font-weight: 900 !important;
}
.locked-mask {
    border: 1px dashed rgba(215,170,95,.55) !important;
    background: linear-gradient(135deg, #fffaf0, #ffffff) !important;
    border-radius: 20px !important;
}
.unlock-btn,
.pay-btn,
.submit-btn,
.btn-submit,
.btn-primary,
.btn-enter,
.bottom-fix button,
.login-btn,
button[type="submit"] {
    background: linear-gradient(135deg, var(--front-primary), var(--front-primary-2)) !important;
    color: #fff !important;
    border: none !important;
    border-radius: 999px !important;
    min-height: 44px;
    box-shadow: 0 12px 26px rgba(18,24,38,.20) !important;
    font-weight: 850 !important;
    letter-spacing: .02em;
}
.btn-unfollow,
.secondary-btn,
.cancel-btn {
    background: #eef2f7 !important;
    color: var(--front-muted) !important;
    border-radius: 999px !important;
}

/* 我的页 */
.user-header {
    margin: 0 0 54px !important;
    padding: 36px 20px 70px !important;
    background:
        radial-gradient(circle at 18% 18%, rgba(243,216,155,.36), transparent 34%),
        linear-gradient(135deg, var(--front-primary), var(--front-primary-2) 64%, #4b3620) !important;
    border-bottom-left-radius: 34px !important;
    border-bottom-right-radius: 34px !important;
    box-shadow: 0 24px 60px rgba(18,24,38,.22) !important;
}
.asset-panel {
    margin: -58px 14px 14px !important;
    border-radius: 24px !important;
    box-shadow: var(--front-shadow) !important;
    border: 1px solid rgba(255,255,255,.72) !important;
}
.icon-circle {
    border-radius: 18px !important;
    box-shadow: 0 10px 24px rgba(18,24,38,.12) !important;
}
.grid-item,
.order-item,
.tool-item {
    border-radius: 18px !important;
}

/* 表单类页面 */
input,
textarea,
select,
.f-input,
.form-control {
    border-radius: 16px !important;
    border: 1px solid rgba(23,32,51,.10) !important;
    background: rgba(255,255,255,.92) !important;
    outline: none !important;
    box-shadow: none !important;
}
input:focus,
textarea:focus,
select:focus,
.f-input:focus,
.form-control:focus {
    border-color: rgba(215,170,95,.65) !important;
    box-shadow: 0 0 0 4px rgba(215,170,95,.12) !important;
}
.upload-box,
.qr-img-wrapper {
    border-radius: 20px !important;
    border: 1px dashed rgba(215,170,95,.45) !important;
    background: linear-gradient(135deg, #fff, #fff8ea) !important;
}

/* 商户/客服 */
.merchant-card {
    align-items: center !important;
    gap: 12px !important;
}
.merchant-actions {
    gap: 8px !important;
}
.notice-text {
    margin: 16px 14px !important;
    border-radius: 22px !important;
    background: linear-gradient(135deg, #ffffff, #f7f9fc) !important;
    box-shadow: var(--front-soft-shadow) !important;
    color: var(--front-primary-2) !important;
}
.qr-card {
    margin: 14px !important;
}

/* 底部导航 */
.bottom-nav,
.bottom-bar,
.action-bar {
    left: 50% !important;
    transform: translateX(-50%) !important;
    width: min(100%, 560px) !important;
    height: calc(58px + env(safe-area-inset-bottom)) !important;
    padding-bottom: env(safe-area-inset-bottom) !important;
    border-top: 1px solid rgba(23,32,51,.08) !important;
    background: rgba(255,255,255,.86) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 -16px 38px rgba(18,24,38,.10) !important;
}
.nav-item,
.b-nav {
    color: #98a2b3 !important;
    font-weight: 700 !important;
}
.nav-item.active,
.b-nav.active,
.nav-item:active,
.b-nav:active {
    color: var(--front-primary) !important;
}
.nav-item i,
.b-nav i {
    font-size: 19px !important;
}
.nav-item.active i,
.b-nav.active i {
    color: var(--front-accent) !important;
}

/* 登录 */
.login-box,
.login-panel {
    width: min(88vw, 390px) !important;
    padding: 30px 24px !important;
    background: rgba(255,255,255,.90) !important;
    border-radius: 28px !important;
    box-shadow: var(--front-shadow) !important;
    border: 1px solid rgba(255,255,255,.72) !important;
}
.logo-icon {
    color: var(--front-accent) !important;
    text-shadow: none !important;
}

/* 桌面端：让移动端产品更像独立 App 容器 */
@media (min-width: 720px) {
    body {
        max-width: 560px;
        margin: 0 auto !important;
        box-shadow: 0 0 0 1px rgba(23,32,51,.06), 0 30px 80px rgba(18,24,38,.12);
    }
    .top-search-bg,
    .search-container,
    .top-nav,
    .bottom-nav,
    .bottom-bar,
    .action-bar {
        max-width: 560px;
        margin-left: auto !important;
        margin-right: auto !important;
    }
}

@media (max-width: 380px) {
    .merchant-name,
    .merchant-title { font-size: 16px !important; }
    .post-title,
    .rel-title { font-size: 15px !important; }
    .profile-banner { padding: 16px !important; }
    .merchant-logo { width: 56px !important; height: 56px !important; }
}

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