/* ==========================================================
   山东冰雪之城科技有限公司 · 全站样式
   主色：#1e5a7a（深冰蓝）  辅色：#7fbed4（冰蓝）  背景：#f5fafd（雪白）
   ========================================================== */

:root {
    --c-frost: #1e5a7a;
    --c-frost-2: #2a6a8e;
    --c-frost-3: #3a82a3;
    --c-ice: #7fbed4;
    --c-ice-2: #a4d4e3;
    --c-ice-soft: #e3f1f7;
    --c-snow: #f5fafd;
    --c-paper: #ffffff;
    --c-line: #dde9ef;
    --c-text: #1c2e38;
    --c-muted: #5a7080;
    --c-muted-2: #88a0b0;

    --radius-sm: 2px;
    --radius-md: 4px;
    --shadow-1: 0 1px 2px rgba(30, 90, 122, 0.05), 0 2px 8px rgba(30, 90, 122, 0.06);
    --shadow-2: 0 6px 24px rgba(30, 90, 122, 0.10);
    --shadow-3: 0 18px 50px rgba(30, 90, 122, 0.18);

    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
                 "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC",
                  "Times New Roman", Georgia, serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    background: var(--c-snow);
    color: var(--c-text);
}

body {
    font-family: var(--font-sans);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.25s ease;
}

ul {
    list-style: none;
}

img {
    display: block;
    max-width: 100%;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===================== Header ===================== */
header {
    background: var(--c-frost);
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(127, 190, 212, 0.35);
}

.header-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 0;
    position: relative;
}

.header-main::after {
    /* 细金线点缀，去掉同质化的渐变 */
    content: "";
    position: absolute;
    left: 0;
    bottom: -1px;
    width: 64px;
    height: 2px;
    background: var(--c-ice);
}

.logo {
    font-family: var(--font-serif);
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 4px;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo::before {
    content: "";
    width: 6px;
    height: 22px;
    background: var(--c-ice);
    display: inline-block;
}

nav ul {
    display: flex;
    gap: 4px;
}

nav a {
    color: rgba(255, 255, 255, 0.78);
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 400;
    letter-spacing: 1px;
    position: relative;
    transition: color 0.25s ease;
}

nav a::after {
    content: "";
    position: absolute;
    left: 16px;
    right: 16px;
    bottom: 2px;
    height: 1px;
    background: var(--c-ice);
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 0.3s ease;
}

nav a:hover,
nav a.active {
    color: #fff;
}

nav a:hover::after,
nav a.active::after {
    transform: scaleX(1);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.85);
}

.balance {
    color: var(--c-ice);
    letter-spacing: 1px;
    font-weight: 500;
    padding-right: 14px;
    border-right: 1px solid rgba(255, 255, 255, 0.15);
}

/* ===================== Button ===================== */
.btn {
    display: inline-block;
    padding: 11px 26px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 1px;
    text-align: center;
    transition: all 0.25s ease;
    background: transparent;
    color: inherit;
}

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

.btn-primary:hover {
    background: var(--c-frost-2);
    border-color: var(--c-frost-2);
}

.btn-gold {
    background: var(--c-ice);
    color: #fff;
    border-color: var(--c-ice);
}

.btn-gold:hover {
    background: #155270;
    border-color: #155270;
}

.btn-ghost {
    background: transparent;
    color: var(--c-frost);
    border-color: var(--c-frost);
}

.btn-ghost:hover {
    background: var(--c-frost);
    color: #fff;
}

.btn-ghost-light {
    background: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.6);
}

.btn-ghost-light:hover {
    background: #fff;
    color: var(--c-frost);
    border-color: #fff;
}

.btn-success {
    background: var(--c-ice);
    color: #fff;
    border-color: var(--c-ice);
}

.btn-success:hover {
    background: #155270;
    border-color: #155270;
}

.btn-warning {
    background: #fff;
    color: var(--c-frost);
    border-color: var(--c-frost);
}

.btn-warning:hover {
    background: var(--c-frost);
    color: #fff;
}

.btn-danger {
    background: #fff;
    color: #b54545;
    border-color: #b54545;
}

.btn-danger:hover {
    background: #b54545;
    color: #fff;
}

.btn-sm {
    padding: 6px 14px;
    font-size: 12px;
}

/* ===================== Banner（单图静态） ===================== */
.banner {
    position: relative;
    height: 460px;
    overflow: hidden;
    background: var(--c-frost);
    color: #fff;
}

.banner-image {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    transform: scale(1.02);
    filter: saturate(0.85) contrast(1.05);
}

.banner-overlay {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(30, 90, 122, 0.65) 0%, rgba(30, 90, 122, 0.4) 45%, rgba(30, 90, 122, 0.12) 100%),
        linear-gradient(180deg, rgba(30, 90, 122, 0.05) 0%, rgba(30, 90, 122, 0.3) 100%);
}

.banner > .container {
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
}

.banner-content {
    max-width: 620px;
    padding: 40px 0;
    position: relative;
    z-index: 2;
}

.banner-content .banner-eyebrow {
    display: inline-block;
    font-size: 12px;
    letter-spacing: 4px;
    color: var(--c-ice);
    padding: 6px 0;
    border-top: 1px solid var(--c-ice);
    border-bottom: 1px solid var(--c-ice);
    text-transform: uppercase;
    margin-bottom: 24px;
}

.banner-content h1 {
    font-family: var(--font-serif);
    font-size: 48px;
    line-height: 1.25;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: 2px;
    text-shadow: 0 2px 18px rgba(0, 0, 0, 0.25);
}

.banner-content p {
    font-size: 16px;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 32px;
    max-width: 520px;
}

.banner-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.banner-actions .btn-primary {
    background: var(--c-ice);
    border-color: var(--c-ice);
    color: #fff;
}

.banner-actions .btn-primary:hover {
    background: #155270;
    border-color: #155270;
}

.banner-actions .btn-ghost-light {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.6);
}

.banner-actions .btn-ghost-light:hover {
    background: #fff;
    color: var(--c-frost);
}

/* ===================== Main ===================== */
main {
    padding: 60px 0 80px;
}

/* ===================== Quick Links ===================== */
.quick-links {
    display: flex;
    gap: 0;
    margin-bottom: 56px;
    border-top: 1px solid var(--c-line);
    border-bottom: 1px solid var(--c-line);
}

.quick-links a {
    flex: 1;
    text-align: center;
    padding: 22px 12px;
    color: var(--c-frost);
    font-size: 14px;
    letter-spacing: 2px;
    position: relative;
    transition: color 0.25s ease, background 0.25s ease;
    border-right: 1px solid var(--c-line);
}

.quick-links a:last-child {
    border-right: none;
}

.quick-links a::before {
    content: "→";
    margin-right: 8px;
    color: var(--c-ice);
    opacity: 0;
    transition: opacity 0.25s ease, transform 0.25s ease;
    display: inline-block;
    transform: translateX(-4px);
}

.quick-links a:hover {
    color: var(--c-ice);
    background: #fff;
}

.quick-links a:hover::before {
    opacity: 1;
    transform: translateX(0);
}

/* ===================== Section ===================== */
.section {
    margin-bottom: 64px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 28px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--c-line);
    position: relative;
}

.section-header::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -1px;
    width: 48px;
    height: 2px;
    background: var(--c-ice);
}

.section-title-group {
    display: flex;
    align-items: baseline;
    gap: 16px;
}

.section-index {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 600;
    color: var(--c-ice);
    letter-spacing: 2px;
}

.section-title {
    font-family: var(--font-serif);
    font-size: 26px;
    font-weight: 700;
    color: var(--c-frost);
    letter-spacing: 2px;
    line-height: 1.2;
}

.view-all {
    font-size: 13px;
    letter-spacing: 2px;
    color: var(--c-muted);
    text-transform: uppercase;
    padding-bottom: 2px;
    border-bottom: 1px solid transparent;
    transition: color 0.25s ease, border-color 0.25s ease;
}

.view-all span {
    color: var(--c-ice);
    margin-left: 4px;
    font-size: 16px;
}

.view-all:hover {
    color: var(--c-frost);
    border-color: var(--c-ice);
}

/* ===================== Info Grid ===================== */
.info-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.info-item {
    background: var(--c-paper);
    border: 1px solid var(--c-line);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    position: relative;
}

.info-item::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--c-ice);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.35s ease;
    z-index: 2;
}

.info-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2);
    border-color: transparent;
}

.info-item:hover::before {
    transform: scaleX(1);
}

.info-item img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.info-item:hover img {
    transform: scale(1.04);
}

.info-item .info-content {
    padding: 20px 22px 22px;
}

.info-item .info-title {
    font-size: 17px;
    font-weight: 600;
    color: var(--c-frost);
    margin-bottom: 12px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 51px;
}

.info-item .info-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--c-muted);
    font-size: 13px;
    padding-top: 12px;
    border-top: 1px dashed var(--c-line);
}

.info-publisher {
    display: flex;
    align-items: center;
    gap: 4px;
    letter-spacing: 0.5px;
}

.category-tag {
    display: inline-block;
    padding: 3px 10px;
    font-size: 12px;
    letter-spacing: 1px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    background: var(--c-ice-soft);
    color: var(--c-frost);
    border: 1px solid transparent;
}

.category-tag.used {
    background: rgba(14, 14, 84, 0.06);
    color: var(--c-frost);
}

.category-tag.agricultural {
    background: var(--c-ice-soft);
    color: #1c5a7a;
}

/* ===================== No Data ===================== */
.no-data {
    text-align: center;
    padding: 80px 20px;
    color: var(--c-muted-2);
    background: #fff;
    border: 1px dashed var(--c-line);
    border-radius: var(--radius-md);
}

.no-data p {
    font-size: 15px;
    letter-spacing: 1px;
}

/* ===================== Form ===================== */
.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--c-frost);
    font-size: 14px;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--c-line);
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-family: inherit;
    background: #fff;
    color: var(--c-text);
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--c-frost);
    box-shadow: 0 0 0 3px rgba(14, 14, 84, 0.08);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.form-row {
    display: flex;
    gap: 20px;
}

.form-row .form-group {
    flex: 1;
}

.btn-group {
    display: flex;
    gap: 12px;
    margin-top: 28px;
}

.required {
    color: var(--c-ice);
    margin-left: 2px;
}

/* ===================== Alert ===================== */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
    font-size: 14px;
    border-left: 3px solid;
    background: #fff;
}

.alert-success {
    border-color: var(--c-ice);
    color: #1c3a4a;
    background: var(--c-ice-soft);
}

.alert-error {
    border-color: #b54545;
    color: #8a3030;
    background: #fbf1f1;
}

.alert-warning {
    border-color: var(--c-ice);
    color: #1c5a7a;
    background: var(--c-ice-soft);
}

.alert-info {
    border-color: var(--c-frost);
    color: var(--c-frost);
    background: rgba(30, 90, 122, 0.05);
}

/* ===================== Table ===================== */
table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border: 1px solid var(--c-line);
    border-radius: var(--radius-md);
    overflow: hidden;
}

table th,
table td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--c-line);
    font-size: 14px;
}

table th {
    background: var(--c-snow);
    font-weight: 600;
    color: var(--c-frost);
    letter-spacing: 1px;
    font-size: 13px;
    text-transform: uppercase;
}

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

table tr:hover td {
    background: var(--c-snow);
}

/* ===================== Pagination ===================== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-top: 40px;
}

.pagination a,
.pagination span {
    padding: 8px 14px;
    border: 1px solid var(--c-line);
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: var(--c-frost);
    font-size: 14px;
    transition: all 0.25s ease;
    background: #fff;
}

.pagination a:hover {
    color: #fff;
    background: var(--c-frost);
    border-color: var(--c-frost);
}

.pagination .active {
    background: var(--c-frost);
    color: #fff;
    border-color: var(--c-frost);
}

/* ===================== Page Title ===================== */
.page-title {
    font-family: var(--font-serif);
    font-size: 32px;
    margin-bottom: 32px;
    color: var(--c-frost);
    font-weight: 700;
    letter-spacing: 4px;
    display: flex;
    align-items: center;
    gap: 18px;
}

.page-title::before {
    content: "";
    width: 6px;
    height: 28px;
    background: var(--c-ice);
}

.page-title::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--c-line);
}

/* ===================== Detail Page ===================== */
.detail-header {
    display: flex;
    gap: 40px;
    margin-bottom: 32px;
    background: #fff;
    padding: 32px;
    border: 1px solid var(--c-line);
    border-radius: var(--radius-md);
}

.detail-image {
    flex: 0 0 440px;
}

.detail-image img {
    width: 100%;
    border-radius: var(--radius-sm);
    border: 1px solid var(--c-line);
}

.detail-info {
    flex: 1;
    padding: 6px 0;
}

.detail-info h2 {
    font-family: var(--font-serif);
    font-size: 28px;
    margin-bottom: 22px;
    color: var(--c-frost);
    letter-spacing: 1.5px;
    line-height: 1.4;
}

.detail-info .info-row {
    margin-bottom: 16px;
    font-size: 15px;
    padding-bottom: 14px;
    border-bottom: 1px dashed var(--c-line);
}

.detail-info .info-row:last-child {
    border-bottom: none;
}

.detail-info .info-label {
    font-weight: 500;
    color: var(--c-muted);
    margin-right: 10px;
    letter-spacing: 0.5px;
}

.detail-info .info-value {
    color: var(--c-text);
}

.price-tag {
    display: inline-block;
    background: var(--c-ice);
    color: #fff;
    padding: 8px 22px;
    font-size: 15px;
    font-weight: 500;
    margin-bottom: 20px;
    letter-spacing: 1.5px;
    border-radius: var(--radius-sm);
}

.detail-content {
    background: #fff;
    padding: 36px;
    border: 1px solid var(--c-line);
    border-radius: var(--radius-md);
    line-height: 1.9;
    color: var(--c-text);
}

.detail-content h3 {
    font-family: var(--font-serif);
    margin-bottom: 20px;
    color: var(--c-frost);
    font-size: 20px;
    letter-spacing: 1.5px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--c-line);
}

.detail-content p {
    font-size: 15px;
    color: var(--c-text);
}

.hidden-phone {
    color: var(--c-muted-2);
    font-style: italic;
}

.phone-display {
    font-size: 20px;
    font-weight: 600;
    color: var(--c-ice);
    letter-spacing: 1.5px;
}

/* ===================== Login / Register ===================== */
.login-page,
.register-page {
    max-width: 460px;
    margin: 70px auto;
}

.register-page {
    max-width: 520px;
}

.center-box {
    background: #fff;
    padding: 48px 44px;
    border: 1px solid var(--c-line);
    border-radius: var(--radius-md);
    position: relative;
}

.center-box::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--c-ice);
}

.center-box h2 {
    text-align: center;
    margin-bottom: 32px;
    color: var(--c-frost);
    font-family: var(--font-serif);
    font-size: 24px;
    letter-spacing: 6px;
    font-weight: 600;
}

.center-box .form-group {
    margin-bottom: 22px;
}

.center-box .btn {
    width: 100%;
    padding: 13px;
    font-size: 15px;
    letter-spacing: 4px;
    margin-top: 8px;
}

.center-box .link-text {
    text-align: center;
    margin-top: 22px;
    color: var(--c-muted);
    font-size: 14px;
}

.center-box .link-text a {
    color: var(--c-frost);
    font-weight: 500;
    border-bottom: 1px solid var(--c-ice);
    padding-bottom: 1px;
}

.center-box .link-text a:hover {
    color: var(--c-ice);
}

/* ===================== Stats ===================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 36px;
}

.stat-card {
    background: #fff;
    padding: 30px 24px;
    border: 1px solid var(--c-line);
    border-radius: var(--radius-md);
    text-align: left;
    position: relative;
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.stat-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    width: 3px;
    background: var(--c-ice);
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-2);
}

.stat-card h3 {
    font-family: var(--font-serif);
    font-size: 36px;
    color: var(--c-frost);
    margin-bottom: 6px;
    font-weight: 700;
    letter-spacing: 1px;
}

.stat-card p {
    color: var(--c-muted);
    font-size: 14px;
    letter-spacing: 1.5px;
}

/* ===================== Status Badge ===================== */
.status-badge {
    display: inline-block;
    padding: 4px 12px;
    font-size: 12px;
    letter-spacing: 1px;
    border-radius: var(--radius-sm);
    font-weight: 500;
}

.status-pending {
    background: #f5fbfd;
    color: #2a6a8e;
    border: 1px solid var(--c-ice-2);
}

.status-approved {
    background: var(--c-ice-soft);
    color: #1c5a7a;
    border: 1px solid var(--c-ice-2);
}

.status-rejected {
    background: #fbf1f1;
    color: #8a3030;
    border: 1px solid #e8b0b0;
}

/* ===================== Footer ===================== */
footer {
    background: var(--c-frost);
    color: #fff;
    padding: 56px 0 28px;
    margin-top: 40px;
    border-top: 3px solid var(--c-ice);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    margin-bottom: 32px;
}

.footer-section h4 {
    font-family: var(--font-serif);
    font-size: 18px;
    margin-bottom: 14px;
    color: #fff;
    letter-spacing: 4px;
    font-weight: 600;
    position: relative;
    padding-bottom: 10px;
}

.footer-section h4::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 32px;
    height: 1px;
    background: var(--c-ice);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.65);
    line-height: 2;
    font-size: 13px;
    letter-spacing: 1px;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.65);
    border-bottom: 1px dotted rgba(255, 255, 255, 0.25);
    padding-bottom: 1px;
}

.footer-section a:hover {
    color: var(--c-ice);
    border-color: var(--c-ice);
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.45);
    font-size: 12px;
    letter-spacing: 1.5px;
}

/* ===================== Notice / Success Box ===================== */
.notice-box {
    background: var(--c-ice-soft);
    border: 1px solid var(--c-ice-2);
    border-left: 3px solid var(--c-ice);
    padding: 18px 22px;
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
    color: #1c5a7a;
    font-size: 14px;
    line-height: 1.8;
}

.notice-box strong {
    color: var(--c-frost);
    font-size: 15px;
    letter-spacing: 0.5px;
}

.success-box {
    background: var(--c-ice-soft);
    border: 1px solid var(--c-ice-2);
    border-left: 3px solid var(--c-ice);
    padding: 18px 22px;
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
    color: #1c5a7a;
    font-size: 14px;
}

/* ===================== File Upload ===================== */
.file-upload {
    border: 1px dashed var(--c-frost);
    padding: 36px;
    text-align: center;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.25s ease;
    background: #fff;
    color: var(--c-frost);
}

.file-upload:hover {
    background: var(--c-snow);
    border-color: var(--c-ice);
    color: var(--c-ice);
}

.file-upload input[type="file"] {
    display: none;
}

.file-upload-label {
    cursor: pointer;
    font-weight: 500;
    letter-spacing: 1px;
}

.image-preview {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 14px;
}

.image-preview img {
    width: 96px;
    height: 96px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    border: 1px solid var(--c-line);
}

/* ===================== Back Button ===================== */
.back-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 20px;
    color: var(--c-frost);
    font-size: 14px;
    letter-spacing: 1px;
    border-bottom: 1px solid var(--c-ice);
    padding-bottom: 2px;
}

.back-btn:hover {
    color: var(--c-ice);
}

/* ===================== Hero (备用) ===================== */
.hero {
    background: var(--c-frost);
    color: #fff;
    padding: 80px 0;
    text-align: center;
    border-bottom: 3px solid var(--c-ice);
}

.hero h1 {
    font-family: var(--font-serif);
    font-size: 42px;
    margin-bottom: 18px;
    letter-spacing: 4px;
}

.hero p {
    font-size: 16px;
    opacity: 0.85;
    margin-bottom: 28px;
    letter-spacing: 1px;
}

/* ===================== Modal ===================== */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(30, 90, 122, 0.45);
    overflow: auto;
}

.modal-content {
    background: #fff;
    margin: 10% auto;
    padding: 32px;
    border-radius: var(--radius-md);
    width: 90%;
    max-width: 460px;
    position: relative;
    box-shadow: var(--shadow-3);
    animation: modalSlideIn 0.3s ease;
    border-top: 3px solid var(--c-ice);
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-30px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-close {
    position: absolute;
    right: 18px;
    top: 14px;
    font-size: 26px;
    font-weight: 300;
    color: var(--c-muted-2);
    cursor: pointer;
    transition: color 0.25s ease;
}

.modal-close:hover {
    color: var(--c-frost);
}

/* ===================== Card ===================== */
.card {
    background: #fff;
    border: 1px solid var(--c-line);
    border-radius: var(--radius-md);
    padding: 30px;
    margin-bottom: 28px;
    transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-2);
}

/* ===================== Responsive ===================== */
@media (max-width: 992px) {
    .info-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header-main {
        flex-direction: column;
        gap: 14px;
        padding: 14px 0;
    }

    .header-main::after {
        display: none;
    }

    nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }

    .user-info {
        flex-wrap: wrap;
        justify-content: center;
    }

    .balance {
        border-right: none;
        padding-right: 0;
    }

    .detail-header {
        flex-direction: column;
        padding: 22px;
    }

    .detail-image {
        flex: none;
    }

    .banner {
        height: 380px;
    }

    .banner-content h1 {
        font-size: 30px;
    }

    .banner-content p {
        font-size: 14px;
    }

    .page-title {
        font-size: 22px;
        letter-spacing: 2px;
    }

    .section-title {
        font-size: 20px;
    }

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

    .form-row {
        flex-direction: column;
        gap: 0;
    }

    .quick-links {
        flex-wrap: wrap;
    }

    .quick-links a {
        flex: 1 1 50%;
        border-bottom: 1px solid var(--c-line);
    }

    .center-box {
        padding: 32px 24px;
    }

    .center-box h2 {
        letter-spacing: 3px;
    }
}

/* ===================== 导航栏通用修正 ===================== */
.header-main {
    flex-wrap: nowrap;
    align-items: center;
}
.header-main .logo {
    white-space: nowrap;
    flex-shrink: 0;
}
.header-main nav {
    flex: 1 1 auto;
    min-width: 0;
}
.header-main nav ul {
    flex-wrap: nowrap;
    white-space: nowrap;
    justify-content: flex-end;
}
.header-main nav a {
    padding: 8px 12px;
    letter-spacing: 0.5px;
}
.user-info {
    flex-shrink: 0;
    padding-left: 18px;
    margin-left: 6px;
    border-left: 1px solid rgba(255, 255, 255, 0.15);
}
.user-info .user-name {
    color: rgba(255, 255, 255, 0.9);
}
@media (max-width: 1100px) {
    .header-main .logo { font-size: 18px; letter-spacing: 2px; }
    .header-main nav a { padding: 8px 8px; font-size: 13px; }
}
@media (max-width: 860px) {
    .header-main { flex-wrap: wrap; gap: 12px; }
    .header-main nav { flex: 1 0 100%; }
    .header-main nav ul { justify-content: center; flex-wrap: wrap; }
    .user-info { padding-left: 0; margin-left: 0; border-left: none; }
}

/* ===================== 充值模块 ===================== */
.recharge-card {
    padding: 0;
    overflow: hidden;
}

.recharge-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 28px;
    background: linear-gradient(135deg, #1e5a7a 0%, #3a82a3 50%, #7fbed4 100%);
    color: #fff;
    position: relative;
}
.recharge-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.18), transparent 55%);
    pointer-events: none;
}

.recharge-title {
    display: flex;
    align-items: center;
    gap: 14px;
}
.recharge-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.18);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    backdrop-filter: blur(6px);
}
.recharge-title h2 {
    font-size: 20px;
    font-weight: 600;
    letter-spacing: 1px;
    margin: 0;
}
.recharge-subtitle {
    margin: 4px 0 0;
    font-size: 13px;
    opacity: 0.85;
}

.balance-badge {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    padding: 10px 18px;
    background: rgba(255, 255, 255, 0.16);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 12px;
    backdrop-filter: blur(6px);
}
.balance-label {
    font-size: 12px;
    opacity: 0.85;
}
.balance-amount {
    font-size: 24px;
    font-weight: 700;
    font-family: var(--font-serif);
    letter-spacing: 0.5px;
}

.recharge-body {
    padding: 28px;
}

.recharge-section {
    margin-bottom: 28px;
}
.recharge-section:last-of-type {
    margin-bottom: 0;
}

.recharge-section-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    font-weight: 600;
    color: var(--c-text);
    margin: 0 0 14px;
}
.section-num {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--c-frost);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
}

.recharge-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}
@media (max-width: 720px) {
    .recharge-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 420px) {
    .recharge-grid { grid-template-columns: 1fr; }
}

.recharge-option {
    position: relative;
    padding: 18px 16px 16px;
    border: 1.5px solid var(--c-line);
    border-radius: 10px;
    background: #fff;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
}
.recharge-option:hover {
    border-color: var(--c-ice);
    transform: translateY(-2px);
    box-shadow: var(--shadow-2);
}
.recharge-option.is-selected {
    border-color: var(--c-frost);
    background: linear-gradient(180deg, var(--c-ice-soft) 0%, #fff 100%);
    box-shadow: 0 4px 16px rgba(30, 90, 122, 0.18);
}
.recharge-option.is-hot {
    border-color: #f5a623;
}
.recharge-option.is-hot.is-selected {
    border-color: var(--c-frost);
}

.pkg-tag {
    position: absolute;
    top: -10px;
    right: 10px;
    padding: 2px 10px;
    font-size: 11px;
    font-weight: 600;
    color: #fff;
    border-radius: 10px 10px 10px 0;
    background: #999;
}
.pkg-tag-推荐 { background: #7fbed4; }
.pkg-tag-热门 { background: linear-gradient(90deg, #f56b3a, #f5a623); }
.pkg-tag-超值 { background: linear-gradient(90deg, #ea4335, #f5a623); }
.pkg-tag-尊享 { background: linear-gradient(90deg, #8e44ad, #3a82a3); }

.pkg-amount {
    font-size: 14px;
    color: var(--c-muted);
}
.pkg-amount span {
    font-size: 28px;
    font-weight: 700;
    color: var(--c-frost);
    font-family: var(--font-serif);
    margin: 0 2px;
}
.pkg-gift {
    margin-top: 6px;
    display: inline-block;
    padding: 1px 8px;
    font-size: 12px;
    color: #fff;
    background: #ea4335;
    border-radius: 10px;
}
.pkg-actual {
    margin-top: 4px;
    font-size: 12px;
    color: var(--c-muted-2);
    min-height: 16px;
}

.custom-amount {
    display: flex;
    align-items: center;
    border: 1.5px solid var(--c-line);
    border-radius: 10px;
    background: #fff;
    padding: 0 16px;
    transition: border-color 0.2s;
}
.custom-amount:focus-within {
    border-color: var(--c-frost);
    box-shadow: 0 0 0 3px rgba(30, 90, 122, 0.10);
}
.custom-prefix,
.custom-suffix {
    color: var(--c-muted);
    font-size: 16px;
}
.custom-prefix { margin-right: 8px; }
.custom-suffix { margin-left: 8px; }
.custom-amount input {
    flex: 1;
    border: 0;
    outline: 0;
    padding: 14px 0;
    font-size: 18px;
    color: var(--c-text);
    background: transparent;
    font-family: var(--font-serif);
}
.custom-amount input::-webkit-outer-spin-button,
.custom-amount input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
.custom-tip {
    margin: 8px 4px 0;
    font-size: 12px;
    color: var(--c-muted-2);
}

.pay-methods {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
@media (max-width: 480px) {
    .pay-methods { grid-template-columns: 1fr; }
}
.pay-method {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border: 1.5px solid var(--c-line);
    border-radius: 10px;
    background: #fff;
    cursor: pointer;
    transition: all 0.2s;
}
.pay-method:hover {
    border-color: var(--c-ice);
}
.pay-method.is-active {
    border-color: var(--c-frost);
    background: var(--c-ice-soft);
    box-shadow: 0 2px 8px rgba(30, 90, 122, 0.10);
}
.pay-icon {
    width: 38px;
    height: 38px;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 600;
    font-size: 18px;
    font-family: var(--font-serif);
}
.pay-icon-alipay { background: linear-gradient(135deg, #1677ff, #00a0e9); }
.pay-icon-wechat { background: linear-gradient(135deg, #07c160, #00b854); }
.pay-name {
    font-weight: 600;
    font-size: 14px;
    color: var(--c-text);
}
.pay-desc {
    font-size: 12px;
    color: var(--c-muted-2);
    margin-top: 2px;
}
.pay-check {
    margin-left: auto;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 1.5px solid var(--c-line);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 12px;
    line-height: 1;
}
.pay-method.is-active .pay-check {
    background: var(--c-frost);
    border-color: var(--c-frost);
}

.recharge-summary {
    margin-top: 30px;
    padding: 18px 20px;
    background: linear-gradient(135deg, var(--c-ice-soft) 0%, #fff 100%);
    border: 1px dashed var(--c-ice);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}
.summary-row {
    display: flex;
    align-items: baseline;
    gap: 12px;
    color: var(--c-muted);
    font-size: 14px;
}
.summary-amount {
    font-size: 30px;
    font-weight: 700;
    color: var(--c-frost);
    font-family: var(--font-serif);
}
.recharge-submit {
    display: inline-flex !important;
    align-items: center;
    gap: 8px;
    padding: 12px 28px !important;
    font-size: 15px !important;
    border-radius: 999px !important;
    box-shadow: 0 4px 14px rgba(30, 90, 122, 0.25);
}
.recharge-submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(30, 90, 122, 0.32);
}
.submit-arrow {
    transition: transform 0.2s;
}
.recharge-submit:hover .submit-arrow {
    transform: translateX(3px);
}

.recharge-tips {
    margin-top: 22px;
    padding: 16px 18px;
    background: #fff8e1;
    border-left: 3px solid #f5a623;
    border-radius: 6px;
}
.recharge-tips h4 {
    margin: 0 0 8px;
    font-size: 14px;
    color: #b07a18;
}
.recharge-tips ul {
    margin: 0 0 0 18px;
    padding: 0;
    font-size: 13px;
    color: #8a6a1c;
    line-height: 1.9;
}
.recharge-tips a { color: #b07a18; text-decoration: underline; }

/* ===== 二维码弹窗 ===== */
.qr-modal-content {
    max-width: 400px;
    padding: 28px 28px 22px;
    text-align: center;
    position: relative;
    transform: scale(0.92);
    opacity: 0;
    transition: transform 0.22s ease, opacity 0.22s ease;
}
.modal.is-open .qr-modal-content {
    transform: scale(1);
    opacity: 1;
}
.qr-modal-content .modal-close {
    position: absolute;
    right: 14px;
    top: 10px;
    width: 28px;
    height: 28px;
    line-height: 26px;
    text-align: center;
    font-size: 22px;
    color: var(--c-muted-2);
    cursor: pointer;
    border-radius: 50%;
    transition: background 0.2s;
}
.qr-modal-content .modal-close:hover {
    background: var(--c-ice-soft);
    color: var(--c-frost);
}

.qr-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 18px;
    flex-wrap: wrap;
}
.qr-amount-display {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}
.qr-amount-label {
    font-size: 12px;
    color: var(--c-muted);
}
.qr-amount-value {
    font-size: 26px;
    font-weight: 700;
    color: var(--c-frost);
    font-family: var(--font-serif);
    line-height: 1.2;
}
.qr-pay-tabs {
    display: flex;
    background: var(--c-ice-soft);
    border-radius: 999px;
    padding: 3px;
}
.qr-pay-tab {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    font-size: 12px;
    color: var(--c-muted);
    border-radius: 999px;
    cursor: pointer;
    transition: all 0.2s;
}
.qr-pay-tab .pay-icon {
    width: 18px;
    height: 18px;
    font-size: 11px;
    border-radius: 4px;
}
.qr-pay-tab.is-active {
    background: #fff;
    color: var(--c-frost);
    box-shadow: 0 1px 3px rgba(30, 90, 122, 0.15);
    font-weight: 600;
}

.qr-image-wrap {
    padding: 12px;
    background: linear-gradient(135deg, var(--c-ice-soft), #fff);
    border-radius: 12px;
    margin-bottom: 14px;
}
.qr-image-wrap img {
    max-width: 240px;
    width: 100%;
    border-radius: 8px;
    background: #fff;
    padding: 6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}
.qr-tip {
    color: var(--c-muted);
    font-size: 13px;
    margin: 0 0 12px;
}
.qr-tip-method {
    color: var(--c-frost);
    font-weight: 600;
    margin: 0 2px;
}
.qr-modal-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px;
    background: var(--c-ice-soft);
    border-radius: 8px;
    font-size: 12px;
    color: var(--c-muted);
}
.qr-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #2ecc71;
    box-shadow: 0 0 0 3px rgba(46, 204, 113, 0.25);
    animation: pulse 1.6s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 3px rgba(46, 204, 113, 0.25); }
    50% { box-shadow: 0 0 0 6px rgba(46, 204, 113, 0.05); }
}