:root {
    --background: #ffffff;
    --surface: #f5f5f7;
    --surface-hover: #eeeeef;
    --text-main: #1d1d1f;
    --text-secondary: #6e6e73;
    --border: rgba(0, 0, 0, 0.08);
    --blue: #0071e3;
    --blue-hover: #0077ed;
    --shadow: 0 18px 55px rgba(0, 0, 0, 0.08);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--text-main);
    background: var(--background);
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "PingFang SC", "Microsoft YaHei", sans-serif;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

/* 顶部导航 */

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.82);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.site-nav {
    width: min(1180px, calc(100% - 40px));
    height: 64px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 38px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    font-size: 19px;
    font-weight: 700;
    letter-spacing: -0.4px;
}

.brand-wordmark,
.footer-wordmark {
    font-weight: 750;
    letter-spacing: -0.5px;
}

.generation-badge {
    min-width: 0.95em;
    height: 1.05em;
    margin-left: 0.12em;
    padding: 0 0.22em;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: relative;
    top: -0.38em;
    border: 1px solid rgba(0, 113, 227, 0.52);
    border-radius: 0.34em;
    color: var(--blue);
    font-size: 0.56em;
    font-weight: 750;
    line-height: 1;
    letter-spacing: 0;
}

.generation-badge-small {
    font-size: 0.72em;
}


.main-nav {
    display: flex;
    align-items: center;
    gap: 28px;
    flex: 1;
}

    .main-nav a {
        font-size: 14px;
        color: #3a3a3c;
        transition: color 0.18s ease;
    }

        .main-nav a:hover {
            color: var(--blue);
        }

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.mobile-nav-menu { display: none; position: relative; }
.mobile-nav-menu summary { list-style: none; }
.mobile-nav-menu summary::-webkit-details-marker { display: none; }

.icon-button {
    height: 36px;
    border: 0;
    border-radius: 999px;
    cursor: pointer;
}

.icon-button {
    width: 36px;
    background: var(--surface);
    font-size: 20px;
}

.account-login-button,
.account-menu-trigger {
    min-height: 36px;
    padding: 0 14px;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--text-main);
    background: var(--surface);
    font-size: 13px;
    line-height: 1;
    cursor: pointer;
    transition: background 0.18s ease, border-color 0.18s ease;
}

.account-login-button:hover,
.account-menu-trigger:hover {
    color: var(--text-main);
    background: var(--surface-hover);
    border-color: rgba(0, 0, 0, 0.13);
}

.account-login-button:focus-visible,
.account-menu-trigger:focus-visible,
.account-menu-item:focus-visible {
    outline: 3px solid rgba(0, 113, 227, 0.24);
    outline-offset: 2px;
}

.account-menu {
    position: relative;
}

.account-menu summary {
    list-style: none;
}

.account-menu summary::-webkit-details-marker {
    display: none;
}

.account-menu-chevron {
    color: var(--text-secondary);
    font-size: 14px;
    transition: transform 0.18s ease;
}

.account-menu[open] .account-menu-chevron {
    transform: rotate(180deg);
}

.account-menu-panel {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    z-index: 1100;
    width: 220px;
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.13);
}

.account-menu-current {
    padding: 9px 10px 11px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 5px;
}

.account-menu-current small,
.account-menu-current strong {
    display: block;
}

.account-menu-current small {
    margin-bottom: 4px;
    color: var(--text-secondary);
    font-size: 11px;
}

.account-menu-current strong {
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 14px;
}

.account-menu-item {
    width: 100%;
    min-height: 38px;
    padding: 0 10px;
    display: flex;
    align-items: center;
    border: 0;
    border-radius: 10px;
    color: var(--text-main);
    background: transparent;
    font: inherit;
    font-size: 13px;
    text-align: left;
    cursor: pointer;
}

.account-menu-item:hover {
    color: var(--text-main);
    background: var(--surface);
}

.account-menu-form {
    margin: 0;
}

.account-menu-logout {
    color: #b42318;
}

/* 首屏 */

.hero-section {
    min-height: 390px;
    padding: 68px 24px 54px;
    display: flex;
    justify-content: center;
    text-align: center;
    background: radial-gradient( circle at 50% 0%, rgba(0, 113, 227, 0.09), transparent 42% ), #ffffff;
}

.hero-content {
    max-width: 960px;
}

.hero-generation-label {
    display: inline-block;
    margin-bottom: 13px;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.12em;
}

.eyebrow {
    color: var(--blue);
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.hero-section h1 {
    margin: 0 0 18px;
    font-size: clamp(40px, 5vw, 62px);
    line-height: 1.08;
    letter-spacing: -2.8px;
    font-weight: 700;
}

.hero-section p {
    max-width: 760px;
    margin: 0 auto;
    color: var(--text-secondary);
    font-size: 18px;
    line-height: 1.6;
}

.hero-brand-title .generation-badge {
    margin-right: 0.2em;
}

.hero-platform-name {
    font-weight: 650;
}

.hero-actions {
    margin-top: 28px;
    display: flex;
    justify-content: center;
    gap: 14px;
}

.primary-button,
.secondary-button {
    min-width: 132px;
    padding: 13px 22px;
    border-radius: 999px;
    font-size: 16px;
    transition: transform 0.18s ease, background 0.18s ease;
}

.primary-button {
    color: white;
    background: var(--blue);
}

    .primary-button:hover {
        color: white;
        background: var(--blue-hover);
        transform: translateY(-1px);
    }

.secondary-button {
    color: var(--blue);
    background: transparent;
    border: 1px solid var(--blue);
}

    .secondary-button:hover {
        color: white;
        background: var(--blue);
    }

/* 通用内容区域 */

.stats-section,
.modules-section,
.feature-section {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
    padding: 100px 0;
}

.stats-section {
    padding-top: 64px;
}

.section-heading {
    max-width: 760px;
    margin-bottom: 42px;
}

    .section-heading h2 {
        margin: 12px 0;
        font-size: clamp(38px, 5vw, 58px);
        line-height: 1.08;
        letter-spacing: -2.3px;
    }

    .section-heading p {
        color: var(--text-secondary);
        font-size: 18px;
    }

/* 数据卡片 */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

.stat-card {
    min-height: 190px;
    padding: 28px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border-radius: 28px;
    background: var(--surface);
}

    .stat-card span {
        color: var(--text-secondary);
        font-size: 15px;
    }

    .stat-card strong {
        font-size: 44px;
        letter-spacing: -2px;
    }

    .stat-card small {
        color: var(--text-secondary);
    }

/* 功能卡片 */

.modules-section {
    padding-top: 70px;
}

.module-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.module-card {
    min-height: 310px;
    padding: 34px;
    display: flex;
    flex-direction: column;
    border-radius: 32px;
    background: var(--surface);
    transition: transform 0.22s ease, background 0.22s ease, box-shadow 0.22s ease;
}

    .module-card:hover {
        color: inherit;
        background: var(--surface-hover);
        transform: translateY(-5px);
        box-shadow: var(--shadow);
    }

.module-icon {
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    border-radius: 16px;
    color: white;
    background: var(--text-main);
    font-size: 23px;
}

.module-card h3 {
    margin: 34px 0 12px;
    font-size: 26px;
    letter-spacing: -0.7px;
}

.module-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.module-card span {
    margin-top: auto;
    color: var(--blue);
    font-size: 15px;
}

/* 底部功能介绍 */

.feature-panel {
    min-height: 360px;
    padding: 60px;
    display: grid;
    grid-template-columns: 1.25fr 1fr;
    align-items: end;
    gap: 60px;
    border-radius: 36px;
    color: white;
    background: radial-gradient( circle at right top, rgba(70, 150, 255, 0.75), transparent 42% ), #101114;
}

    .feature-panel h2 {
        margin: 14px 0 0;
        font-size: clamp(38px, 5vw, 58px);
        line-height: 1.07;
        letter-spacing: -2px;
    }

    .feature-panel p {
        margin: 0;
        color: rgba(255, 255, 255, 0.72);
        font-size: 18px;
        line-height: 1.8;
    }

/* 页脚 */

.site-footer {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
    padding: 38px 0 50px;
    display: flex;
    justify-content: space-between;
    color: var(--text-secondary);
    border-top: 1px solid var(--border);
    font-size: 13px;
}

    .site-footer div {
        display: flex;
        gap: 12px;
    }

/* 手机适配 */

@media (max-width: 900px) {
    .main-nav {
        display: none;
    }

    .site-nav {
        justify-content: space-between;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .module-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .feature-panel {
        grid-template-columns: 1fr;
        align-items: start;
    }
}

@media (max-width: 620px) {
    .brand {
        gap: 6px;
    }

    .brand-wordmark {
        font-size: 16px;
    }


    .hero-section {
        min-height: auto;
        padding: 52px 20px 46px;
    }

        .hero-section h1 {
            font-size: clamp(34px, 11vw, 46px);
            letter-spacing: -1.8px;
        }

    .hero-platform-name {
        display: block;
        margin-top: 7px;
        font-size: 0.68em;
        letter-spacing: -1px;
    }

        .hero-section p {
            font-size: 17px;
        }

    .hero-actions {
        flex-wrap: wrap;
        margin-top: 24px;
    }

    .primary-button,
    .secondary-button {
        min-width: 126px;
    }

    .account-menu-panel {
        width: min(220px, calc(100vw - 40px));
    }

    .account-menu-trigger,
    .account-login-button {
        max-width: 142px;
    }

    .account-menu-trigger > span:first-child {
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .stats-grid,
    .module-grid {
        grid-template-columns: 1fr;
    }

    .stats-section,
    .modules-section,
    .feature-section {
        padding: 70px 0;
    }

    .feature-panel {
        padding: 38px 28px;
        border-radius: 28px;
    }

    .site-footer,
    .site-footer div {
        flex-direction: column;
        gap: 8px;
    }
}
/* 产品管理页 */

.products-page {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
    padding: 72px 0 110px;
}

.products-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 24px;
    margin-bottom: 34px;
}

    .products-header h1 {
        margin: 10px 0 8px;
        font-size: clamp(42px, 6vw, 68px);
        line-height: 1.05;
        letter-spacing: -2.8px;
    }

    .products-header p {
        margin: 0;
        color: var(--text-secondary);
        font-size: 17px;
    }

.products-toolbar {
    display: grid;
    grid-template-columns: minmax(280px, 1fr) 180px 180px;
    gap: 12px;
    margin-bottom: 20px;
}

    .products-toolbar input,
    .products-toolbar select {
        width: 100%;
        height: 46px;
        padding: 0 15px;
        border: 1px solid var(--border);
        border-radius: 14px;
        background: #fff;
        color: var(--text-main);
        font: inherit;
        outline: none;
    }

        .products-toolbar input:focus,
        .products-toolbar select:focus {
            border-color: rgba(0, 113, 227, 0.45);
            box-shadow: 0 0 0 4px rgba(0, 113, 227, 0.08);
        }

.products-table-wrap {
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: 24px;
    background: #fff;
    box-shadow: 0 14px 45px rgba(0, 0, 0, 0.05);
}

.products-table {
    width: 100%;
    min-width: 980px;
    border-collapse: collapse;
}

    .products-table th,
    .products-table td {
        padding: 18px 20px;
        text-align: left;
        border-bottom: 1px solid var(--border);
        white-space: nowrap;
    }

    .products-table th {
        color: var(--text-secondary);
        background: #fafafa;
        font-size: 13px;
        font-weight: 600;
    }

    .products-table td {
        font-size: 15px;
    }

    .products-table tbody tr:last-child td {
        border-bottom: 0;
    }

    .products-table tbody tr:hover {
        background: #fbfbfc;
    }

.status-badge {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 0 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
}

.status-active {
    color: #0a7a4b;
    background: rgba(52, 199, 89, 0.12);
}

.status-low {
    color: #9a6700;
    background: rgba(255, 159, 10, 0.14);
}

.status-out {
    color: #c62828;
    background: rgba(255, 59, 48, 0.12);
}

.table-actions {
    display: flex;
    gap: 8px;
}

    .table-actions button {
        padding: 7px 11px;
        border: 1px solid var(--border);
        border-radius: 10px;
        background: #fff;
        color: var(--text-main);
        cursor: pointer;
        font-size: 13px;
    }

        .table-actions button:hover {
            background: var(--surface);
        }

@media (max-width: 800px) {
    .products-header {
        align-items: flex-start;
        flex-direction: column;
    }

    .products-toolbar {
        grid-template-columns: 1fr;
    }
}
/* 一机一档详情页 */

.device-page {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
    padding: 56px 0 110px;
}

.device-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 56px;
}

.back-link {
    color: var(--blue);
    font-size: 15px;
}

.secondary-action,
.outline-button {
    min-height: 42px;
    padding: 0 18px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 999px;
    background: #fff;
    color: var(--text-main);
    cursor: pointer;
    font: inherit;
}

.device-hero {
    padding: 44px;
    margin-bottom: 22px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 32px;
    background: #fff;
    box-shadow: 0 18px 55px rgba(0, 0, 0, 0.06);
}

    .device-hero h1 {
        margin: 14px 0 16px;
        font-size: clamp(42px, 6vw, 72px);
        line-height: 1.03;
        letter-spacing: -3px;
    }

    .device-hero p {
        margin: 0;
        color: var(--text-secondary);
        font-size: 20px;
    }

.device-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 26px;
}

    .device-tags span {
        padding: 9px 14px;
        border-radius: 999px;
        background: var(--surface);
        font-size: 14px;
    }

.device-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.device-card {
    min-height: 150px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 24px;
    background: #fff;
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.045);
}

    .device-card span {
        color: var(--text-secondary);
        font-size: 14px;
    }

    .device-card strong {
        font-size: 18px;
        line-height: 1.4;
        word-break: break-word;
    }

.archive-section {
    margin-top: 24px;
    padding: 34px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 28px;
    background: #fff;
    box-shadow: 0 14px 40px rgba(0, 0, 0, 0.045);
}

.archive-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 24px;
}

    .archive-heading h2 {
        margin: 8px 0 0;
        font-size: 34px;
        letter-spacing: -1.4px;
    }

.upload-placeholder {
    min-height: 220px;
    padding: 32px;
    display: grid;
    place-items: center;
    border: 1.5px dashed rgba(0, 0, 0, 0.18);
    border-radius: 22px;
    color: var(--text-secondary);
    background: #fafafa;
    text-align: center;
}

.report-list {
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 20px;
}

    .report-list div {
        min-height: 72px;
        padding: 0 22px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    }

        .report-list div:last-child {
            border-bottom: 0;
        }

    .report-list span {
        color: var(--text-secondary);
    }

@media (max-width: 900px) {
    .device-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 560px) {
    .device-page {
        width: min(100% - 24px, 1180px);
    }

    .device-topbar,
    .archive-heading {
        align-items: flex-start;
        flex-direction: column;
    }

    .device-hero {
        padding: 28px;
    }

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

    .archive-section {
        padding: 24px;
    }
}
/* 强制统一产品列表里的“编辑 / 详情”按钮 */

.products-table .table-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

    .products-table .table-actions button,
    .products-table .table-actions .table-link {
        height: 36px;
        min-width: 58px;
        padding: 0 14px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border: 1px solid rgba(0, 0, 0, 0.10);
        border-radius: 11px;
        background: #ffffff;
        color: #1d1d1f;
        font-size: 13px;
        font-weight: 400;
        line-height: 1;
        text-decoration: none;
        white-space: nowrap;
        cursor: pointer;
        box-sizing: border-box;
    }

        .products-table .table-actions button:hover,
        .products-table .table-actions .table-link:hover {
            color: #0071e3;
            border-color: rgba(0, 113, 227, 0.25);
            background: #f5f5f7;
        }
/* 设备图片宫格 */

.photo-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 14px;
}

.photo-slot {
    aspect-ratio: 1 / 1;
    min-height: 150px;
    padding: 18px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 7px;
    border: 1.5px dashed rgba(0, 0, 0, 0.16);
    border-radius: 20px;
    background: #fafafa;
    color: var(--text-main);
    cursor: pointer;
    transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

    .photo-slot:hover {
        transform: translateY(-3px);
        border-color: rgba(0, 113, 227, 0.35);
        background: #f5f8ff;
    }

.photo-plus {
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    color: #fff;
    background: var(--blue);
    font-size: 25px;
    line-height: 1;
}

.photo-slot strong {
    margin-top: 4px;
    font-size: 15px;
}

.photo-slot small {
    color: var(--text-secondary);
    font-size: 12px;
}

.photo-slot-extra {
    border-style: solid;
    background: #f5f5f7;
}

@media (max-width: 1000px) {
    .photo-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 620px) {
    .photo-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .photo-slot {
        min-height: 130px;
    }
}
/* 全新设备详情页 */

.device-detail-page {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
    padding: 48px 0 110px;
}

.device-detail-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 34px;
}

.device-detail-actions {
    display: flex;
    gap: 10px;
}

.device-summary-card,
.detail-panel {
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 30px;
    background: #ffffff;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.05);
}

.device-summary-card {
    padding: 42px;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 32px;
}

    .device-summary-card h1 {
        margin: 12px 0 14px;
        font-size: clamp(46px, 7vw, 76px);
        line-height: 1.02;
        letter-spacing: -3px;
    }

    .device-summary-card p {
        margin: 0;
        color: var(--text-secondary);
        font-size: 19px;
    }

.device-summary-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 9px;
}

    .device-summary-tags span {
        padding: 9px 14px;
        border-radius: 999px;
        background: var(--surface);
        font-size: 14px;
    }

.device-info-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin-top: 16px;
}

.info-card {
    min-height: 140px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 22px;
    background: #ffffff;
}

    .info-card span {
        color: var(--text-secondary);
        font-size: 14px;
    }

    .info-card strong {
        font-size: 18px;
        word-break: break-word;
    }

.detail-panel {
    margin-top: 22px;
    padding: 34px;
}

.detail-panel-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 22px;
    margin-bottom: 26px;
}

    .detail-panel-heading h2 {
        margin: 9px 0 7px;
        font-size: 36px;
        letter-spacing: -1.5px;
    }

    .detail-panel-heading p {
        margin: 0;
        color: var(--text-secondary);
    }

.photo-upload-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 14px;
}

.photo-upload-card {
    position: relative;
    aspect-ratio: 1 / 1;
    min-height: 150px;
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border: 1.5px dashed rgba(0, 0, 0, 0.17);
    border-radius: 20px;
    background: #fafafa;
    cursor: pointer;
    transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

    .photo-upload-card:hover {
        transform: translateY(-3px);
        border-color: rgba(0, 113, 227, 0.35);
        background: #f5f8ff;
    }

.photo-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 7px;
    text-align: center;
}

.photo-plus {
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    color: #ffffff;
    background: var(--blue);
    font-size: 24px;
}

.photo-empty-state strong {
    font-size: 15px;
}

.photo-empty-state small {
    color: var(--text-secondary);
    font-size: 12px;
}

.photo-input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

.photo-preview {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 16px;
}

.photo-upload-card.has-photo {
    padding: 5px;
    border-style: solid;
    background: #ffffff;
}

    .photo-upload-card.has-photo:hover::after {
        content: "点击更换";
        position: absolute;
        left: 10px;
        right: 10px;
        bottom: 10px;
        padding: 8px;
        border-radius: 11px;
        color: #ffffff;
        background: rgba(0, 0, 0, 0.58);
        text-align: center;
        font-size: 12px;
        backdrop-filter: blur(8px);
    }

.document-list {
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 20px;
}

.document-item {
    min-height: 80px;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

    .document-item:last-child {
        border-bottom: 0;
    }

    .document-item div {
        display: flex;
        flex-direction: column;
        gap: 4px;
    }

    .document-item span {
        color: var(--text-secondary);
        font-size: 13px;
    }

    .document-item button {
        min-height: 36px;
        padding: 0 14px;
        border: 1px solid rgba(0, 0, 0, 0.10);
        border-radius: 10px;
        background: #ffffff;
        cursor: pointer;
    }

.timeline-list {
    padding-left: 8px;
}

.timeline-item {
    display: grid;
    grid-template-columns: 18px 1fr;
    gap: 14px;
}

.timeline-dot {
    width: 12px;
    height: 12px;
    margin-top: 5px;
    border-radius: 50%;
    background: var(--blue);
    box-shadow: 0 0 0 6px rgba(0, 113, 227, 0.10);
}

.timeline-item p {
    margin: 5px 0 0;
    color: var(--text-secondary);
}

@media (max-width: 1000px) {
    .photo-upload-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .device-info-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 700px) {
    .device-summary-card,
    .device-detail-topbar,
    .detail-panel-heading {
        align-items: flex-start;
        flex-direction: column;
    }

    .device-summary-tags {
        justify-content: flex-start;
    }

    .photo-upload-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 500px) {
    .device-detail-page {
        width: min(100% - 24px, 1180px);
    }

    .device-summary-card,
    .detail-panel {
        padding: 24px;
    }

    .device-info-grid,
    .photo-upload-grid {
        grid-template-columns: 1fr;
    }
}
.brand,
.brand img {
    cursor: pointer !important;
}

    .brand img {
        transition: 0.2s;
    }

    .brand img:hover {
        transform: scale(1.05);
    }

/* 管理后台导航：桌面端也使用分组面板，避免大量入口被压成竖排。 */
.main-nav-admin {
    display: none;
}

.admin-nav-menu {
    display: block;
}

.admin-nav-menu > summary {
    min-height: 38px;
    padding: 0 14px;
    display: flex;
    align-items: center;
    gap: 7px;
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--text-main);
    background: var(--surface);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: background .18s ease, border-color .18s ease, transform .18s ease;
}

.admin-nav-menu > summary:hover {
    transform: translateY(-1px);
    background: var(--surface-hover);
}

.admin-nav-menu[open] > summary {
    color: var(--blue);
    border-color: color-mix(in srgb, var(--blue) 40%, transparent);
}

@media (min-width: 621px) {
    .admin-nav-menu .mobile-nav-panel {
        position: fixed;
        z-index: 1200;
        top: 74px;
        right: max(24px, calc((100vw - 1180px) / 2));
        width: min(760px, calc(100vw - 48px));
        max-height: calc(100vh - 98px);
        padding: 14px;
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 8px;
        overflow: auto;
        border: 1px solid var(--border);
        border-radius: 24px;
        color: var(--text-main);
        background: var(--background);
        box-shadow: 0 24px 70px rgba(0, 0, 0, .2);
    }

    .admin-nav-menu .mobile-nav-panel a {
        min-width: 0;
        padding: 13px 14px;
        display: flex;
        flex-direction: column;
        gap: 3px;
        border: 1px solid transparent;
        border-radius: 14px;
        background: var(--surface);
        transition: transform .18s ease, background .18s ease, border-color .18s ease;
    }

    .admin-nav-menu .mobile-nav-panel a:hover {
        transform: translateY(-1px);
        border-color: var(--border);
        background: var(--surface-hover);
    }

    .admin-nav-menu .mobile-nav-panel strong {
        font-size: 14px;
    }

    .admin-nav-menu .mobile-nav-panel span {
        color: var(--text-secondary);
        font-size: 12px;
        line-height: 1.45;
    }
}

/* 管理员工作台 */
.operations-page {
    width: min(1420px, calc(100% - 48px));
    margin: 0 auto;
    padding: 34px 0 72px;
    color: var(--text-main);
}

.operations-hero {
    min-height: 230px;
    padding: clamp(30px, 4vw, 58px);
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 40px;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 30px;
    background:
        radial-gradient(circle at 84% 16%, color-mix(in srgb, var(--blue) 20%, transparent), transparent 34%),
        linear-gradient(135deg, var(--surface), var(--background));
    box-shadow: var(--shadow);
}

.operations-hero::after {
    content: "PWMM\00B4";
    position: absolute;
    right: clamp(24px, 5vw, 76px);
    top: 8px;
    color: color-mix(in srgb, var(--text-main) 4%, transparent);
    font-size: clamp(82px, 12vw, 164px);
    font-weight: 850;
    letter-spacing: -.08em;
    pointer-events: none;
}

.operations-hero-copy,
.operations-hero-actions {
    position: relative;
    z-index: 1;
}

.operations-eyebrow,
.operations-kicker {
    color: var(--blue);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .16em;
}

.operations-hero h1 {
    margin: 10px 0 9px;
    font-size: clamp(34px, 4vw, 58px);
    font-weight: 820;
    line-height: 1.05;
    letter-spacing: -.05em;
}

.operations-hero p,
.operations-section-heading p {
    margin: 0;
    color: var(--text-secondary);
}

.operations-hero-actions {
    display: flex;
    gap: 10px;
    flex: 0 0 auto;
}

.ops-button {
    min-height: 46px;
    padding: 0 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    border-radius: 999px;
    font-size: 14px;
    font-weight: 750;
    transition: transform .18s ease, background .18s ease;
}

.ops-button:hover { transform: translateY(-2px); }
.ops-button-primary { color: var(--background); border-color: var(--text-main); background: var(--text-main); }
.ops-button-secondary { color: var(--text-main); background: color-mix(in srgb, var(--background) 78%, transparent); }

.operations-section { margin-top: 42px; }

.operations-section-heading,
.operations-card-heading {
    margin-bottom: 16px;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
}

.operations-section-heading h2,
.operations-card-heading h2 {
    margin: 4px 0 0;
    font-size: 22px;
    font-weight: 780;
    letter-spacing: -.02em;
}

.operations-section-heading p { font-size: 13px; }

.operations-metric-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
}

.ops-metric,
.ops-order-stat {
    min-width: 0;
    padding: 22px;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border);
    border-radius: 21px;
    color: var(--text-main);
    background: var(--surface);
    transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
}

.ops-metric:hover,
.ops-order-stat:hover {
    color: var(--text-main);
    transform: translateY(-3px);
    background: var(--surface-hover);
    box-shadow: var(--shadow);
}

.ops-metric-featured {
    color: var(--background);
    border-color: var(--text-main);
    background: var(--text-main);
}

.ops-metric-featured:hover { color: var(--background); background: var(--text-main); }
.ops-metric > span, .ops-order-stat > span { color: var(--text-secondary); font-size: 13px; }
.ops-metric-featured > span, .ops-metric-featured small { color: color-mix(in srgb, var(--background) 72%, transparent); }
.ops-metric strong { margin: 13px 0 24px; font-size: clamp(31px, 3vw, 44px); line-height: 1; font-weight: 800; letter-spacing: -.04em; }
.ops-metric strong em, .ops-order-stat strong em { color: var(--text-secondary); font-size: .42em; font-style: normal; font-weight: 650; letter-spacing: 0; }
.ops-metric small, .ops-order-stat small { margin-top: auto; color: var(--text-secondary); font-size: 12px; }
.ops-metric small b { color: var(--blue); font-size: 15px; }
.ops-metric-text strong { margin-top: 19px; font-size: clamp(19px, 2vw, 27px); line-height: 1.12; letter-spacing: -.02em; }

.operations-panel {
    border: 1px solid var(--border);
    border-radius: 26px;
    background: color-mix(in srgb, var(--surface) 58%, var(--background));
    box-shadow: 0 14px 45px color-mix(in srgb, var(--text-main) 7%, transparent);
}

.operations-shortcuts { margin-top: 42px; padding: 26px; }
.operations-panel-heading { margin-bottom: 20px; }
.operations-shortcut-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.operations-shortcut-grid a {
    min-height: 86px;
    padding: 16px 17px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    border: 1px solid var(--border);
    border-radius: 16px;
    color: var(--text-main);
    background: var(--background);
    transition: transform .18s ease, border-color .18s ease, background .18s ease;
}
.operations-shortcut-grid a:hover { color: var(--text-main); transform: translateY(-2px); border-color: color-mix(in srgb, var(--blue) 48%, transparent); background: var(--surface-hover); }
.operations-shortcut-grid strong { font-size: 14px; }
.operations-shortcut-grid span { color: var(--text-secondary); font-size: 12px; }

.operations-order-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.ops-order-stat { min-height: 150px; }
.ops-order-stat strong { margin: 12px 0 22px; font-size: 36px; line-height: 1; }
.ops-order-stat small { color: var(--blue); font-weight: 700; }

.operations-content-grid { margin-top: 42px; display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(320px, .75fr); gap: 18px; align-items: start; }
.operations-orders-panel, .operations-list-panel { overflow: hidden; }
.operations-card-heading { margin: 0; padding: 22px 24px; border-bottom: 1px solid var(--border); }
.operations-card-heading > a { color: var(--blue); font-size: 12px; font-weight: 700; white-space: nowrap; }
.operations-table-wrap { width: 100%; overflow-x: auto; }
.operations-table { width: 100%; min-width: 720px; border-collapse: collapse; color: var(--text-main); }
.operations-table th { padding: 13px 18px; color: var(--text-secondary); background: var(--surface); font-size: 11px; font-weight: 750; letter-spacing: .06em; text-align: left; }
.operations-table td { padding: 17px 18px; border-top: 1px solid var(--border); font-size: 13px; vertical-align: middle; }
.operations-table td:first-child strong, .operations-table td:first-child small { display: block; }
.operations-table td:first-child small { margin-top: 3px; color: var(--text-secondary); }
.operations-status { padding: 5px 8px; border-radius: 999px; color: var(--blue); background: color-mix(in srgb, var(--blue) 12%, transparent); font-size: 11px; font-weight: 750; white-space: nowrap; }
.operations-row-action { padding: 7px 11px; border: 1px solid var(--border); border-radius: 9px; font-weight: 700; white-space: nowrap; }
.operations-side-stack { display: grid; gap: 16px; }
.operations-list-panel .operations-card-heading h2 { font-size: 17px; }
.operations-list { display: grid; }
.operations-list > a { padding: 15px 20px; display: flex; align-items: center; justify-content: space-between; gap: 18px; border-top: 1px solid var(--border); color: var(--text-main); font-size: 13px; }
.operations-list > a:first-child { border-top: 0; }
.operations-list > a:hover { background: var(--surface-hover); }
.operations-list > a > span { min-width: 0; }
.operations-list > a > strong { color: var(--blue); font-size: 11px; white-space: nowrap; }
.operations-list > a > small { color: var(--text-secondary); text-align: right; }
.operations-empty { margin: 0; padding: 22px !important; color: var(--text-secondary); text-align: center; }

@media (max-width: 1100px) {
    .operations-metric-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .operations-shortcut-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .operations-content-grid { grid-template-columns: 1fr; }
    .operations-side-stack { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
    .operations-page { width: min(100% - 28px, 1420px); padding-top: 18px; }
    .operations-hero { min-height: 0; padding: 28px; align-items: stretch; flex-direction: column; gap: 26px; border-radius: 24px; }
    .operations-hero-actions { display: grid; grid-template-columns: 1fr 1fr; }
    .operations-metric-grid, .operations-order-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .operations-shortcut-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .operations-side-stack { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
    .operations-page { width: min(100% - 22px, 1420px); padding-bottom: 48px; }
    .operations-hero { padding: 24px 21px; }
    .operations-hero p { font-size: 14px; line-height: 1.65; }
    .operations-hero-actions { grid-template-columns: 1fr; }
    .operations-section, .operations-shortcuts, .operations-content-grid { margin-top: 30px; }
    .operations-section-heading { align-items: flex-start; flex-direction: column; gap: 5px; }
    .operations-section-heading p { font-size: 12px; }
    .operations-metric-grid { gap: 9px; }
    .ops-metric { min-height: 145px; padding: 17px; border-radius: 17px; }
    .ops-metric strong { margin: 11px 0 18px; font-size: 32px; }
    .ops-metric-text strong { font-size: 18px; }
    .operations-shortcuts { padding: 18px; border-radius: 21px; }
    .operations-shortcut-grid { gap: 8px; }
    .operations-shortcut-grid a { min-height: 82px; padding: 13px; }
    .operations-order-grid { gap: 9px; }
    .ops-order-stat { min-height: 132px; padding: 17px; border-radius: 17px; }
    .ops-order-stat strong { font-size: 30px; }
    .operations-card-heading { padding: 18px; }
    .admin-nav-menu > summary { width: 38px; padding: 0; justify-content: center; }
    .admin-nav-menu > summary span:last-child { display: none; }
}